Electronically controlled sample warper

An electronically controlled sample warper capable of warping a plurality of warp yarns simultaneously. In the warper, a plurality of warp yearns can be concurrently wound on a warping drum with omitting a yarn exchanging step to eliminate any time loss for the yarn exchange, thus reducing the warping period of time.

BACKGROUND OF THE INVENTION 
1. Field of the Invention: 
This invention relates to an electronically controlled sample warper 
capable of warping a plurality of warp yarns simultaneously. In the 
warper, a plurality of warp yarns can be concurrently wound on a warping 
drum with omitting a yarn exchanging step to eliminate any time loss for 
the yarn exchange, thus reducing the warping period of time. 
2. Description of the Related Art: 
Conventional electronically controlled sample warpers are exemplified by 
Japanese Patent Laid-Open Publication No. 62942/1987, which generally 
comprises: driving and driven shafts 2, 3 projecting centrally from 
opposite ends of a hollow shaft 1 cantilevered at the driving-shaft side; 
a first small gear 5 loosely mounted on the driving shaft 2 and fixed to a 
pulley 4; a second small gear 7 loosely mounted on the driven shaft 3 and 
fixed to a yarn introduction lever 6; third and fourth small gears 9, 10 
mounted on opposite ends of an auxiliary shaft 8 extending through the 
hollow shaft 1 and meshing the first and second small gears 5, 7, 
respectively, to cooperate with each other; drum frames 13, 14 mounted on 
the driven-shaft side of the hollow shaft 1 and each having an outer 
periphery having alternately an arcuate portion 11 and a straight portion; 
a pair of rollers 15 disposed one on the arcuate portion 11 of each of the 
drum frames 13, 14; and a warper drum A loosely mounted on the hollow 
shaft 1 and having horizontal beams 16 carrying the rollers 15 around 
which conveyor belts 17 are wound. The conveyor belts 17 are 
simultaneously driven to a common amount of fine movement by a drive 
member 21 threadedly engaged with interior screw shafts 20 of planetary 
gears 19 meshing with a sun gear 18 suitably driven from the exterior; as 
the sun gear 18 rotates, the planetary gears 19 rotates concurrently. The 
distal end of the yarn introduction lever 6 is bent inwardly to provide an 
yarn introducing part 6' disposed adjacent to the front end of the outer 
periphery of the warper drum A. The warper also includes: a shedding means 
for forming a shed and a cut shed by selecting warp yarns (to be wound on 
the warper drum) over and under shedding bars and cut shedding bars; a 
total yarns counter count means for rendering an up signal, of a total 
counter for counting the total number of the warp yarns, to be on or off; 
a total yarns completion termination means for terminating the operation 
of the warper when the total number of the warp yarns reaches a 
predetermined value; a conveyor belt leftward moving means for moving the 
conveyor belt leftwardly; a conveyor belt rightward moving means for 
moving the conveyor belt rightwardly; an operation/termination means for 
transmitting the rotation of a main motor 46 to the yarn introduction 
lever 6; a yarn selection means for controlling a yarn selection guide 27 
and a yarn removing unit 32; a yarn pressing solenoid means for rendering 
a solenoid of a yarn relaxation preventing (yarn pressing) unit 60 
operative and inoperative; and a windings count means for counting the 
number of windings of the yarns and for displaying the counted result. By 
selecting the kind of yarn 0-n, and setting the number of yarns, the 
number of repeats, the number of windings, the quantity of movement of the 
conveyor belt, a desired pattern of warping can be achieved automatically. 
The reference numerals used here are similar to those used in an 
embodiment of this invention described below. 
However, in this conventional warper, since an ordinary motor is used as 
the main motor, it is impossible to vary the rate of rotations during 
operating so that miscatches and mischanges as well as yarn breakage are 
inevitable when exchanging yarns. And it is impossible to terminate 
relaxing and to perform jogging, thus causing only inadequate operating 
efficiency. For setting the density of warp yarns, the rate of moving the 
conveyor belt is determined by varying the gear ratio of speed change 
gears operatively connected to the main motor Since the conveyor belt is 
moved even during idling, regular windings of yarns on the warper drum are 
difficult to achieve so that the tension and the warp length would finely 
vary during. In order to overcome the abovementioned problems, proposals 
have been made to employ an inverter motor or an AC servo motor in the 
warper (Japanese Patent laid-Open Publications Nos. 35845/1988 and 
35846/1988). 
However, in the last-mentioned conventional warpers, since always only a 
single yarn is engaged on the yarn introducing part, it is impossible to 
wind two or more yarns concurrently on the yarn introducing part. Further, 
since the main motor is reduced in speed and idled one or two times, 
during exchanging yarns, in order to avoid miscatching, mischanging, or 
other misoperating, the warping operation is wasteful in part. Yet 
assuming that two or more yarns are engaged on the single yarn 
introduction part in order to omit this yarn exchanging step, two or more 
yarns could be wound on the warper drum, but alternate an accurate 
selection of yarns one at a time for the shedding bar and the cut shedding 
up and down is impossible. 
SUMMARY OF THE INVENTION 
It is therefore an object of this invention to provide an electronically 
controlled sample warper capable of warping a plurality of warp yarns 
simultaneously, in which the step of exchanging yarns can be omitted and 
in which the warping period of time can be reduced to a minimum. 
According to this invention, there is provided an electronically controlled 
sample warper for automatically warping in a desired pattern or yarns by 
selecting the kinds of yarns from 0 through n and by setting the number of 
yarns, the number of repeats, the number of windings, the amount of 
movement of a conveyor belt, which comprises: driving and driven shafts 2, 
3 projecting centrally from opposite ends of a hollow shaft 1 cantilevered 
at the driving-shaft side; a first small gear 5 loosely mounted on the 
driving shaft 2 and fixed to a pulley 4; a second small gear 7 loosely 
mounted on the driven shaft 3 and fixed to a yarn introduction lever 6, 
the distal end of the yarn introduction lever 6 being bent inwardly to 
provide a yarn introducing part 6' disposed adjacent to the front end of 
the outer periphery of the warper drum A; third and fourth small gears 9, 
(10) mounted on opposite ends of an auxiliary shaft 8 extending through 
the hollow shaft 1 and meshing the first and second small gears 5, 7, 
respectively, to cooperate with each other; drum frames 13, 14 mounted on 
the driven-shaft side of the hollow shaft 1 and each having an outer 
periphery having alternately an arcuate portion 11 and a straight portion; 
a pair of rollers 15 disposed one on the arcuate portion 11 of each of the 
drum frames 13, 14; a warper drum A loosely mounted on the hollow shaft 1 
and having horizontal beams 16 carrying the rollers 15 around which 
conveyor belts 17 are wound, the conveyor belts 17 being simultaneously 
driven to a common amount of fine movement by a drive member 21 threadedly 
engaged with interior screw shafts 20 of planetary gears 19 meshing with a 
sun gear 18 suitably driven from the exterior; as the sun gear 18 rotates, 
the planetary gears 19 rotates concurrently; a shedding means for forming 
a shed and a cut shed by selecting the warp yarns over and under shedding 
bars 33, 38, 34 and cut shedding bars 35, 37; a total yarns counter count 
means for rendering an up signal, of a total counter for counting the 
total number of the warp yarns, to be on or off; a total yarns completion 
termination means for terminating the operation of the warper when the 
total number of the warp yarns reaches a predetermined value; a conveyor 
belt leftward moving means for moving the conveyor belt 17 leftwardly; a 
conveyor belt rightward moving means for moving the conveyor belt 17 
rightwardly; an operation/termination means for transmitting the rotation 
of a main motor 46 to the yarn introduction lever 6; a yarn selection 
means for controlling a yarn selection guide 27 and a yarn removing unit 
32; a yarn pressing solenoid means for rendering a solenoid of a yarn 
relaxation preventing unit 60 operative and inoperative; and a windings 
count means for counting the number of windings of the yarns and for 
displaying the counted result; characterized in that the warper includes a 
plurality of the yarn introduction levers 6 each having a distal end 
inwardly bent to provide a yarn introduction part 6', and also includes a 
rotary creel F for supporting a plurality of bobbins on which a plurality 
of kinds of yarns are wound respectively. 
The above and other advantages, features and additional objects of this 
invention will be manifest to those versed in the art upon making 
reference to the following detailed description and the accompanying 
drawings in which a structural embodiment incorporating the principles of 
this invention is shown by way of illustrative example.

DETAILED DESCRIPTION 
The principles of this invention are particularly useful when embodied in 
an electrically controlled sample warper such as shown FIGS. 1 through 4, 
generally designated by the reference character W. 
As shown in FIGS. 1 through 4, the sample warper W has a hollow shaft 1. A 
driving shaft 2 and a driven shaft 3 project centrally from respective 
opposite ends of the hollow shaft 1. On the driving shaft 2, a first small 
gear 5 and a pulley 99 both fixed to a pulley 4; on the driven shaft 3, a 
second gear 7 to which a pair of yarn introduction levers 6, 6 is fixed is 
loosely mounted. A pulley 98 is operatively connected with the pulley by a 
timing belt and is fixed to a shaft, on an extension of which an encoder 
97 is mounted. The first and second small gears 5, 7 is in meshing 
engagement with third and fourth small gear 9, 10, respectively, which are 
mounted on opposite ends on a cooperating shaft 8 extending through the 
hollow shaft 1. Thus the first and second small gears 5, 7 are 
cooperatively connected with the third and fourth small gears 9, 10. The 
hollow shaft 1 is cantilevered at the driving-shaft side; on the 
drivenshaft side of the hollow shaft 1, a warper drum A is loosely 
mounted. The warper drum A is composed of a pair of drum frames 13, 14 
each having an outer periphery having alternately arcuate and straight 
portions 11, 12. The warper drum A also includes horizontal beams 16 each 
supporting on its opposite ends a pair of rollers 15, 15 each resting on 
the arcuate portion 11 of each drum frame 13, 14. A conveyor belt 17 is 
wound round each pair of rollers 15, 15. All of the conveyor belts 17 are 
driven concurrently in common fine extents by driving members 21 
threadedly engaged with interior screw shafts 20 of planetary gears 19 
which are in meshing engagement with a sun gear 18 all for corotation 
therewith, the sun gear 18 being suitably driven from the exterior. The 
distal end of each yarn introduction lever 6 is inwardly bent to provide a 
yarn introduction part 6' which is disposed adjacent to the front end of 
the outer periphery of the warper drum A. 
Designated by B is a fixed creel for supporting a plurality of bobbins on 
which various yarns 22 of different colors are to be wound respectively. 
24 designates a guide plate for guiding the yarns 22 drawn out from the 
bobbins; 25, a tension regulator for adjusting the tension of the yarns 
22; 26, a dropper ring. 
F designates a rotary creel (FIG. 15) for supporting two or more bobbins 
106 on which various yarns 22 of different colors are to be wound 
respectively. The rotary creel F is adapted to be substituted for the 
fixed creel B. 100 designates an encoder for detecting the rotation of the 
creel; 101, a timing pulley fixed to an output shaft 108 of a reducer; 
103, a timing pulley fixed to a rotary shaft 107 and operatively connected 
with a timing belt 109. 104 designates a tension regulator for adjusting 
the tension of the yarns 22; 110, a limit switch for sensing any possible 
yarn breakage. This rotary creel F can operate in synchronism with the 
yarn introduction parts 6', normally comparing the rotational signals 
between the above-mentioned encoder 97 and the encoder 100 on the creel. 
The position of the bobbins to be supported on the rotary creel F must be 
relatively corresponding to the yarn introduction parts 6'. 
Further, 27 designates yarn selection guides for selectively guiding the 
yarns 22 according to the instructions of a program setting unit 78. 28 
designates a slitted plate which generates pulses, in response to the 
rotation of the pulley 4, to actuate n number of rotary solenoids 29. The 
selection guides 27 are attached one to each rotary solenoid 29. When the 
individual rotary solenoid 29 is energized, the corresponding selection 
guide 27 is angularly moved to advance to its operative position 
(phantom-line position in FIG. 9); when the rotary solenoid 29 is 
deenergized, the selection guide 27 is reversely angularly moved to its 
original position (solid-line position in FIG. 9). S designates a stop 
plate supported on a base Y via a support T in correspondence with the 
selection guides 27. When the selection guide 27 is angularly moved to 
advance to its operative position, the stop plate S receives the distal 
end portion 27a of the selection guide 27 to restrict the movement of 
selection guide 27. A recess r is formed in the stop plate S at a portion 
engageable with the distal end portion 27a of the selection guide 27. With 
this recess r, since the distal end portion 27a of the selection guide 27 
is engageable with the surface of the stop plate S deeper than the usual 
surface, catching of the yarn during the yarn change by the selection 
guide 27 can be performed reliably and smoothly. If this recess r did not 
exist, namely, if the stop plate S were merely supported, the catching of 
yarns could not have been performed accurately. Thus this recess r would 
serve to produce very significant results in this invention. The 
configuration of the recess r may be, for enough, such that the distal end 
portion 27a of the selection guide 27 is brought in engagement with the 
stop plate S deeply on a rear surface thereof. Alternatively, projections 
or ridges may be formed on the stop plate S contiguously to such contact 
surface. Or only the contact surface of the stop plate S may be recessed. 
In another alternative form, the recess r may be an elongated groove as 
illustrated. 59a designates a guide rod projecting from the inner surface 
of a lower portion of a yarn introduction cover 59 for guiding a yarn, 
removed during the yarn changing, so as to move to the lower side of the 
stop plate S. 
30 and 31 designate a pair of guide rods for the yarns 22. 32 designates a 
yarn removing unit for removing the yarn 22, being wound on the warper 
drum A, according to the instructions of the program setting unit 78. 
33, 34 and 38 designate shedding bars for jointly forming a shed of the 
yarns 22; two of the bars 33, 38 are upper shedding bars, and the 
remaining bar 34 is a lower shedding bar. 35 and 37 designate cut shedding 
bars for separating the shedding down yarns into lower-side yarns and 
upper-side yarns; one of the bars 35 is a cut shedding up bar, and the 
other bar is a cut shedding down bar. 39 designates a yarn stop mounted on 
the drum frame 13 for stopping a yarn immediately under the broken yarn 
being shedded. The rewinder C is composed of a skelton 40, a pair of 
rollers 41, 42, a zigzag-shaped comb 43, a roller 44 and a beam 49 for a 
woven fabric. 
Designated by 46 is a main motor, which may be an inverter motor in order 
to enable, during operation of the warper, the change of speed, the 
termination of relaxation and the jogging, thus realizing a highly 
increased winding speed. 
47 designates a main speed change pulley; 58, a V belt wound on and between 
the main speed change pulley 47 and an auxiliary speed change pulley 48; 
49, a counter pulley which is coaxial with the auxiliary speed change 
pulley 48; 50, a brake actuating pinion for reciprocatingly moving a rack 
to bring the rack into and out of engagement with a brake hole (not shown) 
in a brake drum D, thus regulating the rotational speed of the warper drum 
A as desired. 57 designates a belt moving motor (AC servo motor); 52, a 
shift lever, 53, a driven gear; 54, a sprocket-wheel, 55, a chain; 56, a 
chain wheel for driving the sun gear 18; 57 and 58, both V belts; 59, a 
yarn introduction cover. 
Additionally, 60 designates a yarn relaxation preventing unit attached to 
the side wall of one horizontal beam 16a or 16b under the warper drum A 
coming close to the yarn selection guide 27. The yarn relaxation 
prevention unit 60 is preferably located on the horizontal beam 16a which 
is disposed at the lowermost surface of the warper drum A; but it may be 
located at the horizontal beam 16b next to the horizontal beam 16a which 
performs the same functions. 61 designates a bracket, by means of which 
the yarn relaxation preventing unit 60 is attached to the side wall of the 
horizontal beam 16a. 62 designates a rotary disk constituting the yarn 
relaxation preventing unit 60. The rotary disk 62 has a yarn pressing 
cutaway 63 formed by cutting away about a quarter of the entire 
circumference of the disk 62 and is normally urged to rotate in one 
direction by a spiral-shaped restoring spring means 64. 65 designates a 
stop projecting from the metal fitting 61 and engageable with the end 
surface of the yarn pressing cutaway 63 to restrict the rotation of the 
rotary disk 62; this stop 65 serves to hold a removed yarn 22 in 
cooperation with the end surface of the yarn pressing cutaway 63. 66 
designates a rotary solenoid attached to the bracket 61; the rotary 
solenoid 66 is operable, when energized, to render the rotary disk 62 in 
the reverse direction. 67a, 67b and 67c are sensors for detecting the 
passing of the slit 28a of the slitted plate 28. The slit 28a is designed 
so as to rotate in synchronism with the yarn introduction lever 6; the 
sensors 67a, 67b, 67c detects also the rotation of the yarn introduction 
lever 6 by detecting the rotation of the rotation of the slit 28a. These 
three sensors 67a, 67b, 67c are arranged at an angular space of about 
120.degree.. Of these three sensors, the sensor 67b is located adjacent to 
the lower side of the slitted plate 28 so as to detect whether the yarn 
introduction lever 6 has passed the yarn relaxation prevention unit 60. 
Now when the yarn to be removed next passes the yarn relaxation preventing 
unit 60 during the winding, the rotary solenoid 66 is energized by a 
signal from the program setting unit 78. Then when the yarn introduction 
lever 6, i.e., the slit 28a passes the sensor 67a spaced from the sensor 
67b by about 240.degree. in the direction of rotation, the rotary solenoid 
66 is deenergized by a signal from the program setting unit 78. 68 
designates a cover attaching groove formed in the lower portion of the 
side wall of the horizontal beam 16, in which groove a cover for 
preventing any dust from entering the warper drum A is to be attached In 
FIG. 4, 69 designates a movement/stopping change-over lever for changing 
over the movement/stopping of the conveyor belt 17; 70, a locking lever 
for locking the warper drum A; 74, a shedding bar adjusting lever; 75, a 
shedding bar locking handle; 79, a controller; 80, a yarn tensioning unit 
located centrally on the straight part 12 of the warper drum A. 
In FIG. 1, 87 designates an upper limit switch mounted on the upper portion 
of the fixed creel B and operable each and every time the yarn 22 is wound 
round the warper drum A. While the yarn 22 is being wound on the warper 
drum A as the yarn introduction lever 6 is in rotation, this upper limit 
switch 87 is switched on by the yarn 22 being supplied. While the yarn 
introduction lever 6 is in rotation even as the yarn 22 is not wound on 
the warper drum A, namely, when there occurs a mischange, the upper limit 
switch 87 remains off, never being switched off. Utilizing the 
above-mentioned operation of the upper limit switch 87, confirmation is 
made whether the upper limit switch 87 is switched on/off each and every 
time the yarn 22 is wound around the warper drum A; when the upper limit 
switch 87 is never switched on even once as the yarn 22 makes a single 
turn around the warp drum A, the operation of the electrically controlled 
sample warper W is automatically terminated so that any inconvenience due 
to the mischange can be avoided. 
Designated by 88 is a lower limit switch located under the dropper ring 26; 
when the yarn 22 is broken off, the dropper ring 26 falls to switch the 
lower limit switch 88 off. Upon receipt of a signal from this lower limit 
switch 88, the operation of the sample warper W is terminated so that any 
inconvenience due to the yarn breaking can be avoided. 
In FIG. 15, 110 designates another limit switch for detecting any yarn 
breaking of the rotary creel to terminate the sample warper W in the 
similar manner. 
FIG. 16 shows the principle of operation of the rotary creel 110 of FIG. 
15. In FIG. 16, an operating switch assembly 111 is composed of four 
switches for warping on, warping off, fine movement in forward rotation, 
and fine movement in reverse rotation, respectively. Of such four switch 
signals, the switch signals for warping on and warping off are transmitted 
to the electronically controlled sample warper W, while the switch signals 
for fine movement in forward rotation and fine movement in reverse 
rotation are transmitted to a synchronous operation control unit 112 to 
locate the yarn introduction part 6' and the bobbins 106 (on which the 
yarn 22 to be caught by the yarn introduction part 6' are wound) in 
register with one another. In the synchronous operation control unit 112, 
a RUN signal (warping-on signal), a JOG signal (jogging operation signal), 
which are transmitted from the sample warper W, and the above-mentioned 
fine-movement-in-forward-rotation signal and 
fine-movement-in-reverse-rotation signal are converted into ENB signals 
(synchronous operation enable signal) to be transmitted to an inverter 
113. Further, to an synchronous operation card 114, an encoder 97 mounted 
in the warper W and an encoder 100 mounted in the rotary creel F are 
connected. During the jogging operation when the warping is on, the 
rotational angles of the two encoders 97, 100 are normally compared, and 
the signals are transferred between the synchronous operation card 114 and 
the inverter 113 so as to keep the positional relation between the yarn 
introduction part 6' and the bobbins 106 (on which the yarns 22 to be 
caught by the yarn introduction part 6' are wound) constant. The inverter 
113 gives a rotation signal to a reducered motor 101 located in the rotary 
creel F. The inverter 113 and the synchronous operation card 114 may be of 
the type on the market. 
The operation of the above-described electronically controlled sample 
warper W will now be described. 
Firstly, the yarns 22 are different in number depending on the pattern or 
design of a sample. Bobbins on which various yarns of n number of colors, 
for example, are wound respectively are supported on the fixed creel B. A 
desired number of yarns 22 are drawn out from the bobbins and are threaded 
through the guide plate 24, the tension regulator 25, the dropper ring 26 
and the selection guide 27 and are pressed against the base Y by a yarn 
fastener E with permanent magnet. Thus the yarns 22 have been set. 
Then concurrently with the operation of the warper W according to a 
prepared arrangement preset by the program setting unit 78, the yarn 
introduction part 6' takes a circular motion over and round the warper 
drum A to thereby wind the yarns 22 over the conveyor belts 17. At that 
time the conveyor belts 17 also are moved in the direction of an arrow 
(rightwardly in FIG. 1) by the action of the interior screw shaft 20. As 
the pulley 4 is rotated, pulses are produced by the slitted plate 28 to 
render the n number of rotary solenoids 29 operative. When the selection 
guide 27 attached to the rotary solenoid 29 are advanced to its operative 
position, the yarn 22 having been tensioned between a pair of guide rods 
30, 31 is caught by the yarn introduction part 6' and is thereby wound 
around the conveyor belts 17. According to the next instructions of the 
program setting unit 78, the yarns 22 being wound is removed by the action 
of the yarn removing unit 32, and then another yarn is wound on the 
conveyor belts 17 according to the next to next instructions of the 
program setting unit 78. 
The movements of the yarn 22 during the yarn changing will now be described 
with reference to FIG. 9. The yarn 22a caught by the selection guide 27 
initially located in the original position assumes its position 22b as the 
selection guide 27 is pivotally moved to advance to its operative 
position. From this position, the yarn 22b is wound round the warper drum 
A by the yarn introduction part 6'; 22c designates the posture in which 
the yarn 22 is wound one turn, and 22d designates the posture in which the 
yarn is wound two or more turns. When the yarn 22d wound on the warper 
drum A is removed therefrom by the yarn removing unit 32, the yarn assumes 
again its posture 22b. Because the distal end 27a of the selection guide 
27 is located in the recess r of the stop plate S as the selection guide 
27 is angularly moved to advance to its operative position to catch the 
removed yarn 22b, the selection guide 27 can catch the removed yarn 22b 
smoothly and reliably, thus avoiding accidents such as a double winding. 
At that time, as the yarn 22 to be removed and thus the yarn introduction 
lever 6 has passed the yarn relaxation preventing unit 60, the sensor 67b 
makes an immediate detection so that the rotary solenoid 66 is energized 
by a signal from the program setting unit 78 and the controller 79. Upon 
its energization, the rotary solenoid 66 causes the rotary disk 62 to 
rotate in a direction against the bias of the spring means 64 so that the 
yarn located in the yarn pressing cutaway 63 is pressed by the end surface 
of the yarn pressing cutaway 63 and the stop 65. This pressing continues 
for only a short time, namely, until the yarn introduction lever 6 reaches 
the position of the sensor 63a, whereupon the yarn relaxation preventing 
unit 60 stands by for the next possible removal of the yarn. 
Upon termination of the yarn pressing by the rotary disk 62, the yarn 
selection guide 27 is returned to its original position with keeping this 
removed yarn taut due to the weight of the dropper ring 26, and then the 
yarn selection guide 27 waits for the next instructions of the program 
setting unit 78 to make windings of the yarn in order in a predetermined 
arrangement. 
For using the rotary creel F, since the yarn exchanging step can be 
omitted, the power source of the programing setting unit 78 is switched 
off so that the rotary solenoid 29, the yarn removing unit 32 and the yarn 
relaxation preventing unit 60 are kept inoperative. The moving rate of the 
conveyor belt 17 and the counting operation of the total yarns counter 
will vary depending on the number of yarns concurrently wound on the 
warper drum A. 
During the winding, the shedding bars 33, 34, 38 make the shedding 
operation, and the cut shedding bars 35, 37 divide the shedded yarns into 
a lower group of the yarns and an upper group of the yarns. In the 
wound-up yarns, the shedded yarns are cut by the action of the cut 
shedding bars 35, 37, and the lower group of yarns are stopped by the yarn 
stop 39 mounted on the drum frame 13, while the upper group of the yarns 
are led to a fabric round the skelton 40 of a rewinding unit C and then 
are wound thereround via the roller 41. Thereafter the yarns may be taken 
up, from the roller 42, onto the beam 49 for woven fabric via the roller 
42, the zigzag-shaped comb 43 and the roller 44 without any difficulty. 
The operation of the electronically controlled sample warper of this 
invention will now be described with reference to FIGS. 10a, 10b, . . . 
10l. The program is adapted for performing a parallel processing in which 
successive routines of FIGS. 10a through 10l are repeated at intervals of 
from about 0.5 to 1 millisecond. 
When the rotary creel F is in use, two of the yarn introduction part 6' are 
preferably located with their mutual angular displacement of 180.degree. 
so that the yarn introduction part 6' catching the yarn firstly wound 
around the warper drum A is the one aligned with the slit 28a of the 
slitted plate 29. The yarn introduction part 6' to be used when the rotary 
creel F is not in use is only this yarn introduction part 6'. The second 
yarn when the rotary creel F is in use is catched by the yarn introduction 
part 6' that is angularlty displaced by 180.degree.. 
Double Winding Termination Circuit (FIG. 10a) 
The double winding detecting sensors, namely, the upper limit switches 87 
are supported on a creel stand for the yarn supply (FIG. 3). There are n 
number of sensors one for each yarn supplied. The individual sensor 87 
issues an output when the yarn 22 is wound on the warper drum A by the 
yarn introduction part 6'. As the two or move yarns are concurrently 
caught by the yarn introduction part 6' due to the accident during the 
yarn selecting, the output of the sensor 87 turns the double winding 
display lamp on. This output signal is combined circuitwise with the 
warper termination switch SW to terminate the warper. The releasing is 
made by a double winding reset switch. 
Since the fixed creel stand B is not used when the rotary creel F is to be 
used, this double winding termination circuit is kept free from operating. 
Shedding Circuit (when the creel stand for fixed yarn supply is in use) 
(FIG. 10b) 
The shedding bar assembly is composed of four kinds of shedding bars, i.e., 
shedding up bars 33, 38, a shedding down bar 34, a cut shedding up bar 35, 
and a cut shedding down bar 37. The solenoids are connected one to each of 
the shedding bars; by the actions of the individual solenoids, the yarns 
to be wound on the warper drum A are brought selectively upwardly and 
downwardly of the individual shedding bar to make a shedding and a cut 
shedding. The shedding at the start can be selected by the shedding up 
switch and the shedding down switch. 
In the shedding method while the yarn is not being exchanged, if the warper 
is in operation and also if the count value "0" (winding turns display is 
"0") is confirmed, the three kinds of solenoids, namely, the shedding up 
solenoid, the cut shedding up solenoid and the cut shedding down solenoid 
are switched on, and are switched off by the photocell C (67c). 
Concurrently, the shedding down display lamp is switched on. As the count 
is "0" (winding turns display is "0"), the three kinds of solenoids, 
namely, the shedding down solenoid, the cut shedding up solenoid and the 
cut shedding down solenoid are switched on, and are switched off by the 
photocell C (67c). At the same time, the shedding up display lamp is 
turned on. Upon the next count "0" (winding turns display is "0"), the 
foregoing procedures are repeated. 
Thus in the shedding method while the yarn is not being exchanged, the 
individual solenoid moves one over rotation (during the yarn changing) 
than the operating time of each solenoid during the shedding while the 
yarn is not being exchanged. 
Shedding Circuit (when the rotary creel is in use) (FIG. 10b') 
A discrimination is made on whether the first yarn to be first wound on the 
warper drum A begins with the shedding up (hereinafter called "shedding up 
mode") or with the shedding down (hereinafter called "shedding down 
mode"). If it starts with the shedding up mode, the shedding up display 
lamp is turned on; if it starts with the shedding down mode, the shedding 
down display lamp is turned on. Then if the warper is in operation and 
also if it is confirmed that the count value is "0" (winding turns display 
is "0"), the shedding up solenoid is on in the shedding up mode. Or the 
shedding down solenoid is on in the shedding down mode. When the photocell 
B (67b) is turned on, the shedding up solenoid and the shedding down 
solenoid are off and on, respectively, in the shedding up mode. Or the 
shedding down solenoid and the shedding up solenoid is off and on, 
respectively, in the shedding down mode. In either shedding mode, the cut 
shedding up solenoid and the cut shedding down solenoid are both on. 
Subsequently, when the photocell C (67c) is on, the shedding up solenoid 
and the shedding down solenoid are both off in either shedding mode, 
whereupon when the photocell B (67b) is on, the four solenoids are all 
off. The foregoing procedures are repeated. 
Total Yarns Counter Count Circuit (when the creel stand for fixed yarn is 
in use) (FIG. 10c) 
In the circuit in which the up signal of the total yarns counter is on/off, 
if this counter is reset at the count value "0" (winding turns display is 
"0"), the up signal of the total yarns counter will be on, and will be off 
by the photocell C (67c) to proceed the total yarns counter. This is true 
because two yarns at a time are wound on the warper drum A. 
Total Yarns Completion Termination Circuit (FIG. 10d) 
When the counted results of the total yarns counter reaches a preset value, 
the total yarns completion display lamp is turned on. Since this on signal 
of the total yarns completion display lamp is combined circuitwise with 
the warper termination switch, the warper is terminated. Releasing is 
performed by the reset switch of the total yarns counter. 
Conveyor Belt Leftward Moving Circuit (FIG. 10e) and Conveyor Belt 
Rightward Moving Circuit (FIG. 10f) 
Since the conveyor belt of the sample warper of this invention is not 
endless and is movable leftwardly and rightwardly, the conveyor belt can 
be moved independently by the leftward moving switch and the rightward 
moving switch to be located with the start position and with the rewinding 
position. For safety, a belt right limit switch and a belt left limit 
switch are located at the right and left limits, respectively. When the 
left limit switch is actuated during the leftward movement of the conveyor 
belt 17, the conveyor belt 17 is stopped. Likewise, when the right limit 
switch is actuated during the rightward movement of the conveyor belt 17, 
the conveyor belt 17 is stopped. 
Operation/Termination Circuit (FIG. 10g) 
This circuit transmits rotation of the main motor 46 to the yarn 
introduction lever 6. After both the operation switch and termination 
switch are switched on, a one-second timer is inserted to take a 
synchronism with a part of program which part discriminates whether it is 
operating when it is either operated or terminated. 
Yarn Section Circuit (FIG. 10h) 
This circuit controls the yarn selection and the yarn removing solenoids. 
Yarn Pressing Solenoid Circuit (FIG. 10i) 
This circuit is operable to render the yarn pressing solenoid 
operative/inoperative. After the change signal for yarn selection is on, 
the yarn pressing solenoid will be rendered operative only from the 
photocell B (67b) to the photocell A (67a). 
Multi-Winding Count Circuit (FIG. 10j) 
This circuit counts the number of yarn windings on the warper drum A and 
displays the count value. The multi-winding count display takes one up by 
the output of the photocell A outside the duration of the yarn section; as 
the count value becomes over a preset value of windings, the mult-winding 
display will be "0". 
Inverter Speed Change Circuit (FIG. 10k) 
Here the "inverter" drives the main motor 46 in the sample warper W and is 
not an inverter attached to the rotary creel. This circuit discriminates 
whether the change signal outputted from the program setting unit 78 in 
synchronism with the photocell A (67a) during the yarn changing is on and 
renders a multi-step speed change signal (low speed signal) to be on to 
rotate the main motor 46 at a low speed. Then, confirming on/off signal of 
the photocell C (67c), the circuit sets the number of idling rotations, 
during which time the multi-step speed change signal (low speed signal) is 
continues to be on. When it is released out of the idling rotation, the 
circuit renders the multi-step speed change signal to be off to rotate the 
main motor 46 at a high speed. Thereafter, the foregoing procedures are 
repeated. The flowchart shows the example in which two idling rotations 
are made. 
AC Servo Control Circuit (when the fixed creel stand for yarn supply is in 
use) (FIG. 10l) 
This circuit reads the warp width, the number of warp yarns, and the number 
of yarn windings from a warp length setting unit 90 and a 
number-of-windings setting unit RS1 and calculates the number of feed 
pulses per winding (provided that the AC servo motor is driven by the 
input of the number of pulses). The circuit also calculates a corrected 
number if correction is necessary. Then a discrimination is made on 
whether it is in idling rotation or not; if it is in idling rotation, the 
control routine returns to the start and does not advance. If it is not in 
idling rotation, the circuit discriminates the on/off signal of the 
photocell A (67a) and issues the calculated number of pulses to rotate the 
conveyor belt motor 51 to turn through an angle corresponding to the 
calculated number of pulses. The foregoing procedures are repeated. 
AC Servo Control Circuit (when the rotary creel is in use) (FIG. 10l') 
The only difference from when the fixed creel stand is in use is that to 
wind two yarns at a time on the warper drum A, transmission of number of 
the pulses are repeated twice. Other procedures are identical with those 
when the fixed creel stand is in use. 
Description will now be made on a practical example in which winding of 
alternately two red yarns and two white yarns are repeated up to the total 
number of 3,600 and the warp width of 100 cm with the double warp length 
(multi-winding), the creel stand for fixed yarn supply being used. 
Firstly, the red yarn and the white yarn are set on the creel stand B and 
are threaded through the guide plate 24, the tension regulator 25, and the 
dropper ring 26. The red yarn is threaded through No. 0 guide of the 
selection guide 27, and the white yarn is threaded through the No. 1 
guide. Then the red and white yarns are pressed against the base Y by the 
yarn fastener E with the permanent magnet. 
Secondly, a program is prepared according to the yarn setting of the 
selection guide 27. The display of the programmed contents is as follows: 
______________________________________ 
Address Yarn Kind Number of Yarns 
Number of repeats 
______________________________________ 
0 0 0 0 0 0 2 0 0 0 
0 0 1 1 0 0 2 0 0 0 
______________________________________ 
At the same time, the number of multi-windings (e.g., 2) and the amount of 
movement of the conveyor belt (e.g., 100 cm when the total number of yarns 
reaches 3,600) are set. 3,600 is set in the total yarns counter. 
As the yarn introduction lever 6 is angularly moved when the operation 
switch is switched on, the slitted plate 28 also is angularly moved in the 
same rotational speed, and at the same time, the conveyor belt 17 is moved 
a preset distance at a time from the front side to the rear side. 
Then as the warper motor (main motor) 46 is rotated to locate the yarn 
introduction lever 6 at the start position between the photocell A (67a) 
and the photocell B (67b) and as the operation switch is switched on, the 
solenoid of the No. 0 selection guide 27 is energized, and at the same 
time, the shedding up solenoid and the cut shedding up and down solenoids 
are energized, and one second after, the yarn introduction lever 6 is 
angularly moved. 
At that time, the yarn introduction lever 6 catches the yarn of the No. 0 
selection guide, i.e., the red yarn and then turns to start winding the 
red yarn around the warper drum A. Then a cut shed of the red yarn is 
formed by the action of the cut shedding up solenoid and the cut shedding 
down solenoid. As the yarn passes the photocell C (67c), the individual 
solenoid is deenergized. Partly since the cut shedding bar is located 
between the photocell B (67b) and the photocell C (67c), and partly since 
the shedding bar is located between the photocell A and the photocell B, 
only the cut shed is formed of the red yarn at the start. When the yarn 
introduction lever 6 passes the photocell A (67a) for the first winding, 
the multi-winding display will be "1". When it passes the photocell A for 
the second winding, the multi-winding display will be "0" . Concurrently, 
the shedding up solenoid and the cut shedding up and down solenoids are 
energized, and the individual solenoid is deenergized as it passes the 
next photocell C so that a shed and a cut shed are formed. 
Concurrently with this, a total yarns count up signal is issued so that the 
total yarns counter displays "1". When it passes the photocell A (67a) for 
the third winding, the multi-winding display will be "1". When it passes 
the photocell A for the fourth winding, the multi-winding display will be 
"0". At the same time, as the No. 0 yarn selection solenoid, the yarn 
removing solenoid, the shedding down solenoid, and the cut shedding up and 
down solenoids are energized, the red yarn is removed from the yarn 
introduction lever 6 and hence is received in the No. 0 selection guide by 
the weight of the dropper ring 26. 
At that time, when it passes the photocell B, the yarn pressing solenoid 
will be energized to press the red yarn on the warper drum A so that any 
yarn slack will not come into the color on the warper drum A. As it passes 
the next photocell C, the yarn removing solenoid will be deenergized. 
Concurrently, the total yarns counter displays "2" as the total yarns 
count up signal is issued. If it passes the photocell A (67a) for the 
fifth winding, the No. 0 yarn selection solenoid will be deenergized, and 
the No. 1 yarn selection solenoid will be energized. The yarn introduction 
lever 6 catches the white yarn with the No. 1 yarn selection solenoid to 
wind the white yarn round the warper drum A. The yarn pressing solenoid 
also is deenergized. When it passes the next photocell C (67c), the No. 1 
yarn selection solenoid, the shedding down solenoid, the cut shedding up 
solenoid and the cut shedding down solenoid will be deenergized. As it 
passes the photocell A (67a) for the sixth winding, the multi-winding 
display will be "0". Also the shedding up solenoid, the cut shedding up 
solenoid and the cut shedding down solenoid are energized. As it passes 
the next photocell C (67c), the individual solenoid will be deenergized to 
form a shed and a cut shed. Simultaneously with this, the total yarns 
count up signal is issued so that the total yarns counter displays "3". 
When it passes the photocell A (67a) for the eighth winding, the 
multi-winding display will be "1". As it passes the photocell A (67a) for 
the ninth winding, the multi-winding display will be "0". At the same 
time, the No. 1 yarn selection solenoid, the yarn removing solenoid, the 
shedding down solenoid, the cut shedding up solenoid and the cut shedding 
down solenoid are energized to remove the white yarn from the yarn 
introduction lever 6 so that the white yarn is received in the No. 1 yarn 
selection guide by the weight of the dropper ring 26. At that time, when 
it passes the photocell B (67b), the yarn pressing solenoid is energized 
to press the yarn on the warper drum A. As it passes the next photocell C 
(67c), the yarn removing solenoid will be deenergized, whereupon the total 
yarns count up signal will be issued to render the total yarns counter to 
display "4". 
Subsequently, when it passes the photocell A for the tenth winding, the No. 
1 yarn selection solenoid will be deenergized, and the No. 0 yarn 
selection solenoid will be energized (at this time, the multiwinding count 
does not count). The yarn introduction lever 6 catches the red yarn to 
wind it round the warper drum A, whereupon the yarn pressing solenoid is 
deenergized. As it passes the next photocell C (67c), the No. 0 yarn 
selection solenoid, the shedding down solenoid, the cut shedding up 
solenoid and the cut shedding down solenoid will be energized. 
Likewise, as long as any termination signal resulting from yarn breakage, 
double-yarn stopping, mischange, and right limit switch, and until the 
total yarns completion termination signal is inputted, the yarn 
introduction lever 6 is angularly moved, and the individual solenoid is 
energized/deenergized, so that the conveyor belt keeps feeding the yarn to 
perform the warping work. 
FIG. 11 shows the control part of the electronically controlled sample 
warper. The program setting unit 78 is capable of selecting the 0-n number 
of kinds of yarns, setting the number of yarns and setting of the number 
of repeats by ten figure key switches of 0-9, a .uparw. switch, a .dwnarw. 
switch, a move switch, a (11) switch, a termination switch, a CLR (clear) 
switch and a paper feed switch. The thus set program can be printed out by 
a small-sized printer; the contents of the program, i.e., address, the 
presence of (11), the kinds of yarns, the number of yarns, and the number 
of repeats can be displayed by LEDs. The control part includes various 
switches for storing, operation and reading; it is possible to display the 
preset contents when in operation, and it is possible to correct the 
program when reading. 
This program setting unit 78 is electronically connected to the controller 
79 via the yarn kind signal, the yarn change signal and the count up 
signal. As these signals are successively received, the preset program is 
repeated in order. The contents of the program utilizes the four 
fundamental rules of arithmetic formulae. For example, the program in 
which ten windings of 1 kind yarn, five windings of 2 kind yarn and seven 
windings of 3 kind yarn are repeated three times, and thereafter six 
windings of 4 kind yarn and two windings of 5 kind yarn are added, can be 
expressed by (1.times.10+2.times.5+3.times.7).sup.3 +4.times.6+5.times.2. 
For another example, a much more complex program expressed by 
{[(1.times.2+2.times.3).sup.3 +1.times.4].sup.5 +2.times.6}.sup.7 
+3.times.5 can be prepared. 
A program once set is protected by a back-up battery unless the program is 
changed. The controller 79 controls the warper. Specifically, according to 
the program preset by the program setting unit 78, the controller 79 
controls a relay 81 for electromagnetic switch, a relay 82 for 0-n kind 
yarn solenoid, a relay 83 for yarn selection, yarn pressing, yarn removing 
solenoids, a relay 84 for shedding up, shedding down, cut shedding up and 
cut shedding down solenoids, a display 85, etc., all electrically 
connected to the controller 79. 
The relay 81 for electromagnetic switch controls the switching on/off of 
the winding motor. The relay for 0-n kind yarn solenoid controls 0-n 
solenoid when the relay for yarn selection is on. The relay for yarn 
pressing and yarn removing controls the yarn pressing and the yarn 
removing solenoids. The relays for shedding up, shedding down, cut 
shedding up and cut shedding down control the shedding up, shedding down, 
cut shedding up and cut shedding down solenoids, respectively. 
The display lamps 85 are lamps for displaying the operation states of the 
warper. Specifically, the display lamps 85 display the power source on, 
the rightward movement of the conveyor belt, the leftward movement of the 
conveyor belt, the shedding up, the shedding down, the energization of the 
main motor, the double winding, the total number of yarns, the 
multi-winding. 
The operation switches 86 are switches for controlling the warper. 
Specifically, the operation switches 86 controls the power source, the 
automatic termination of the warper motor, the multi-winding setting, the 
conveyor belt movement termination, the rightward movement of the conveyor 
belt, the leftward movement of the conveyor belt, the shedding up, the 
shedding down, the energization of the main motor, the deenergization of 
the main motor, the double winding reset switch, the total yarns counter, 
etc. 
The photocell switches 67 are composed of three photocell switches or 
sensors 67a, 67b, 67c supported on the warper. These three photocell 
switches 67a, 67b, 67c are arranged one at each of generally trisectional 
circumferential positions for timing between the yarn selection, the yarn 
pressing, the yarn removing, the shedding, the cut shedding, the scouting 
up, etc. 
A switch 87 for double-winding termination detects whether the yarns on the 
creel stand B for fixed supply yarn are wound two at a time and transmits 
a signal to the controller 79. The warper is also equipped with a yarn 
breakage detection switch for terminating the main motor 46, various 
solenoid to be controlled the above-mentioned relays, an electromagnetic 
switch, a mischange display, etc. 
In addition, though there is no illustration in the drawings, the warper 
also includes: an inverter for inputting an operation termination signal, 
a jogging signal, a multi-step speed change signal and a forward/reverse 
rotation signal via the controller (sequence board) 79 to control the 
rotation of the main motor 46; and an AC servo motor control part for 
inputting a conveyor belt rightward movement signal, a conveyor belt 
leftward movement signal, an operation termination signal, the warp width, 
the number of warp yarns, the number of windings, a photocell A signal, 
etc. via the controller (sequence board) 79, the multi-winding setting 
unit RS1 and the warp length setting unit 90 to control the angle of 
rotation of the conveyor belt motor 51. 
FIG. 12 is a timechart showing the operation of the electronically 
controlled sample warper. 
According to this timechart, a double winding of 0 kind yarn is wound 
twice, and a double winding of 1 kind yarn is wound twice, whereupon these 
are repeated. Here "double winding" is a value preset in the range of from 
0 to 19 by the multi-winding setting switch. The signals from these three 
photocell switches are called here "photocell A", "photocell B" and 
"photocell C". The operation starts between the photocell switch A and the 
photocell switch B. whereupon photocell B - photocell C - photocell A - 
photocell B - photocell C - photocell A are successively issued. 
Hereinafter these signals are utilized to take the following timing. 
A count signal is issued each and every time the photocell A detects that 
the slit 28a of the slitted plate 28 passes; the count signal is not 
issued only at one time after a change signal received from the program 
setting unit, for the yarn introduction lever 6 is angularly moved without 
any load. A count up signal will be on between the photocell A and the 
photocell C every time it reaches a preset multi-winding value. The count 
up signal renders the total yarns counter up. Thus a count up signal is 
transmitted to the program setting unit. 
A change (yarn exchange) signal is transmitted from the program setting 
unit in synchronism with the photocell A and is used in changing the yarn 
kind. A selection signal transmits a signal to one of 0-n kind yarn 
solenoids when a corresponding one of the relays for 0-n kind yarn 
solenoids. This solenoid is on between the start time and the photocell C, 
whereupon a confirmation is made as to whether the change signal is 
received. The solenoid will be on between the photocell A and the next 
photocell A, will be off for a short time (10 to 50 ms), immediately then 
will be on, and will be on until the next photocell C. 
The relays for 0, 1 kind yarn solenoids are adjusted in timing by the 
controller based on the yarn kind setting signal transmitted from the 
program setting unit, and is kept energized until a selection signal for 
yarn changing is issued. The yarn removing solenoid signal is on between 
the photocell A and the photocell C after it is confirmed that a change 
signal has been received. The yarn pressing solenoid signal is on between 
the photocell B and the photocell A after the yarn removing solenoid 
signal has been on. 
The shedding up solenoid signal and the shedding down solenoid signal may 
be started from either signal and will be on alternately. Between the 
start and the photocell C, either signal confirms that a count up signal 
is on not during the yarn changing and that a change signal is received. 
Then either signal will be on for a period of time from the photocell A 
and the next photocell C. Though there is no illustration in the timechart 
of FIG. 12, if one of the shedding up and down solenoid signals is on, 
both the cut shedding up and down solenoid signals will be on. 
Further, by varying the timing of the shedding up and down solenoid 
signals, it it possible to form sheds of different kinds which can be 
rewound directly on a weaving beam 49. The warper starts its operation by 
switching the start switch on and terminates its operation by switching 
the termination switch on. Alternatively, the warper may be terminated by 
the double-winding termination switch for checking the state of winding 
two or more yarns at one time as well as by the mischange signal to notify 
the state of not winding the yarn during the yarn changing, the total 
yarns completion signal to be transmitted also from the total yarns 
counter to notify the completion of winding the total yarns, the yarn 
breakage detection signal to notify the yarn breakage, etc. 
FIGS. 18 and 19 are timecharts showing the operation of the electronically 
controlled sample warper which is capable of warping a plurality of yarns 
concurrently. 
Specifically, the timechart of FIG. 18 illustrates the example in which 
using the rotary creel F, the two yarns are caught one by each of the yarn 
introduction parts 6', 6' displaced circumferentially by 180.degree. and 
then are wound twice (two windings) in the shedding up mode (the shedding 
of the yarn to be wound on the warper drum A starts with the shedding up). 
The yarn to be wound on the warper drum A is engaged on one of the yarn 
introduction part 6' aligned with the slit 28a of the slitted plate 28, 
and this yarn introduction part 6' starts from between the photocell A and 
the photocell B. At that time, as discussed above, since the yarn 
exchanging step is omitted, the yarn selection solenoid, the yarn pressing 
solenoid, the yarn removing solenoid, etc. will not be energized. 
A multi-winding counter signal is issued every time the photocell A detects 
the passage of the slit 28a of the slitted plate 28. The total yarns 
counter count up signal will be on/off twice. At that time, the value of 
the total yarns counter advances 2 up per multi-winding. The shedding up 
solenoid will be on from the start until the photocell B is on, whereupon 
the shedding up solenoid will be on from the energization of the photocell 
A to the energization of the photocell B until it reaches a preset 
multi-winding value. 
The shedding down solenoid will be on concurrently with the deenergization 
of the shedding up solenoid and will be off upon energization of the 
photocell C. Both the cut shedding up solenoid and the cut shedding down 
solenoid will be on concurrently with the energization of the shedding 
down solenoid. At that time, the photocell B is on. However, if the 
photocell B is off and is then on again, these solenoids will be off. 
The posture of the yarn wound on the warper drum A is such that using the 
creel stand B for fixed yarn supply, the double winding (number of turns 
is 2) of 0 kind yarn and the double winding (number of turns is 2) of 1 
kind yarn are repeated alternately. Partly since the yarn exchanging step 
is omitted, and partly since the two yarns are concurrently wound on the 
warper drum A as the yarn introduction part 6' makes one rotation, the 
warping work can be reduced to a minimum. 
FIG. 19 is a timechart showing various signals to be inputted to an 
inverter to synchronize a rotary shaft 107 of the rotary creel F with the 
operation of the yarn introduction part 6'. 
A RUN signal will be on one second earlier and off one second later than 
the inverter built in the electronically controlled sample warper W. The 
RUN signal will be on when the warping ON switch is switched on, and will 
be off one second after a detection is made whether the warping OFF switch 
is on. 
An FWD signal gives a forward rotation command to the inverter 113 built in 
the rotary creel F. This FWD signal will be on for the same period as the 
RUN signal, whereupon the FWD signal will be on when the JOG signal 
(jogging signal) to be inputted from the electronically controlled sample 
warper W is on. One second after the JOG signal has been off, the FWD 
signal will be off. The FWD will be on also while the forward rotation 
fine movement switch on the rotary creel F. 
An ENB signal (synchronization variable signal) will be on while the FWD 
signal is on upon receipt of the RUN signal and the JOG signal, both 
inputted from the electronically controlled sample warper W. Because the 
main motor 46 of the warper W is preset so as to be terminated before the 
ENB signal is off, the warper W performs a synchronous operation always 
while the yarn introduction part 6' is in rotation. 
The JOG signal renders the rotary shaft 107 of the rotary creel F and will 
be on while either the forward rotation fine movement switch or the 
reverse rotation fine movement switch is depressed. At that time, only the 
rotary shaft 107 of the rotary creel F is in rotation, instead of 
synchronous operation. This JOG signal is used in locating the yarn 
introduction part 6' and the bobbin 106 in register with each other. The 
inverter 113 gives to the reducered motor 101 a rotation command for 
synchronous operation, upon comparison of these signals with the angle of 
rotation of the encoder 97 built in the warper W or with the angle of 
rotation of the encoder 100 supported on the rotary creel F. 
In the foregoing description, the yarn kinds are 0-n, and n usually stands 
for a digit up to 9 but may be more than 9. In the above description, the 
number of windings is 1-19 but should by no means be limited to these 
specific figures. The relay part, i.e., the driver part of the solenoid 
may be a semiconductor such as a transistor or a thyristor. The switch of 
each of the photocells A, B, C may be a magnet-sensitive element, a 
mechanical limit switch or the like. The controller is a microcomputer, a 
memory, a TTL, a CMOS a, a photocoupler or the like, and may be an 
ordinary sequence controller. 
The inverter, which serves to perform a synchronous operation, may be 
replaced by an AC servo motor. For supporting three or more yarns on the 
rotary creel F, separate timing sensors are required, in addition to the 
photocells A, B, C to control the shedding up solenoid, the shedding down 
solenoid, the cut shedding up solenoid and cut shedding down solenoid in 
on/off timing, to render the multiple total yarns count up signals 
operative/inoperative for a constant period of time and to increase the 
number of feed pitches of the conveyor belt multiple times. 
FIG. 13 shows the board surface of the program setting unit 78, and FIG. 14 
shows the board surface of the controller 79. In FIG. 14, PL1 designates a 
belt fast feed leftward movement display lamp; PL2, a belt fast feed 
rightward movement display lamp; PL3, a power source display lamp; PL4, a 
main motor ON display lamp; PL5, a shedding up display lamp; PL6, a 
shedding down display lamp; PL7, a double winding termination display 
lamp; SS-0, a power source switch; SS-1, a midnight power source switch; 
SS-2, a main motor forward/reverse rotation switch; SS-3, a mischange 
circuit switch; PS1, a belt leftward movement switch; PS2, a belt fast 
feed termination switch; PS3, a belt fast feed rightward movement switch; 
PS4, a main motor ON switch; PS5, a main motor OFF switch; PS6, a shedding 
up switch; PS7, a shedding down switch; PS8, a multi-winding manual count 
switch; PS9, a multi-winding count reset switch; PS10, a double winding 
reset switch; PS11, a main motor reverse rotation fine movement switch; 
RS1, a multi-winding setting switch; BU406D, a number-of-winding setting 
unit; RS2, a warp yarns setting unit. 
Further, 72 designates a warp yarn speed meter; 90, a warp length setting 
unit; 92, a maximal-number-of-rotations setting dial of the main motor 46. 
The maximal number of rotations of the main motor 46 may be set also by a 
setter built in the inverter. 94 and 96 respectively designate a belt feed 
rightward fine movement switch and a belt feed leftward fine movement 
switch. These two switches are correction switches in which the one pitch 
feeding of the conveyor belt can be possible by the mechanical switch when 
the main motor is off. 
In the illustrated embodiment, two yarn introduction levers 6, 6 are 
located in confronting relation to each other and have at their respective 
distal ends a pair of yarn introduction parts 6', 6' to wind two yarns 
round the warper drum. Alternatively, three or more yarn introduction 
levers 6, 6, 6 may be provided and have at their respective distal ends 
three or move yarn introduction parts 6', 6', 6' to wind three or more 
yarns round the warper drum. Further, although a plurality of yarn 
introduction levers 6 are located preferably at regular spaces for 
balance, a bar may be used to take a balance so that the yarn introduction 
levers 6 must not be spaced equidistantly. 
As described above, according to this invention, since the rotary creel in 
addition to the conventional fixed creel is provided so that two or three 
or more yarns can be wound round the warper drum concurrently and 
accurately as they are brought selectively over and under the shedding 
bars and cut shedding bars, it is possible to reduce the warping operation 
to a minimum.