TAPE CUTTING AND WINDING MECHANISM

Abstract: A setting and winding mechanism for a tape-like laminate (LL) in a laminater for facilitating the initial setting of tape-like materials to the laminater with avoiding the waste of the materials. The mechanism comprises a feeding device (8) for feeding a laminate strip (LL), a sensing means (15) to detect the position of said laminate strip, a cutting means (19) to cut the laminate strip into laminate pieces (A), a delivery means (20) to deliver said cut laminate pieces (A), a take-up means (37) to wind up the free end of the laminate strip (LL), and a drive controlling means (54-60).

Description: BACKGROUND OF THE INVENTION (1) Field of the Invention This invention relates to a cutting and winding mechanism for a tape-like laminate according to the preamble part of claim 1 in which a transparent tape-like film is laminated in a laminater on a printing medium such as an array of labels or tags and the obtained laminate is cut at predetermined lengths. More particularly, the invention relates to a cutting and winding mechanism for a tape-like laminate in a laminater which can facilitate and ensure the initial setting of the tape-like laminate. (2) Description of the Prior Art A device for cutting a tape-like laminated material according to the preamble part of claim 1 is disclosed in U.S. Patent No. 4,494,435. In this device, only the upper printable layer and adhesive layer are cut with leaving the backing substrate intact. By this device, it is impossible to cut the whole layers of a laminated strip and to stack cut laminate pieces for use piece by piece. Furthermore, in an ordinary laminating device in which a printed label strip is laminated thereon with a transparent film of the same width, it is difficult to align correctly both a tape-like materials of a label strip and a transparent film in parallel relationship. In practice, both the materials are set in a laminater and overlaid to each other. Then, a considerable length of them is passed through the machine so as to align correctly. After that, the normal operation is started. It is waste of expensive materials and the workability cannot be raised. BRIEF SUMMARY OF THE INVENTION It is, therefore, the primary object of the present invention to eliminate the above-described disadvantages in the conventional art. Another object of the present invention is to provide a cutting and winding mechanism for a tape-like laminate material with which mechanism, the initial setting and aligning of the tape-like materials can be done quite easily without producing much waste material. A further object of the invention is to provide a cutting and winding mechanism for tape-like materials in a laminater, with which set strip materials are correctly aligned, then cut at every proper positions to facilitate the starting of the laminater. According to the present invention, the solution of these objects is achieved by the features of claim 1. In the above mechanism of the invention, the delivery means is provided with a driving roller unit and an openable roller unit. When the tape-like materials are set, the openable roller unit is opened and the tape-like laminated material is cut with winding the laminated material, there by facilitating the setting of tape-like materials to the laminater. BRIEF DESCRIPTION OF THE DRAWINGS These and other objects and features of the invention will become more apparent from the following description taken in connection with the accompanying drawings in which: Fig. 1 is a plan view of an embodiment of the mechanism according to the present invention; Fig. 2 is a perspective view of a laminate; Fig. 3 is a schematic drawing showing the driving mechanism for a cutting means and a delivery means; and Fig. 4 is a diagram of driving and controlling circuit. DESCRIPTION OF PREFERRED EMBODIMENT This invention will be described in more detail with reference to the embodiment shown in the drawings. Shown in Fig. 1 in plan view is the whole of a laminater 1, in which the mechanism of the present invention is incorporated. Close to the laminater 1, there is provided a printer PR in which predetermined figures and characters are printed on a label strip L. The printer PR supplies the laminater 1 with the printed label strip L. A spring-urged arm 4 having a movable guide roller 3 is mounted on a base board 2 of the laminater 1. The label strip L is turned by the guide roller 3 and it is turned again by a stationary guide roller 5. The label strip L is further transferred to a feeding device 8 through a laminating head 6 and a fixed guide roller 7. A supporting means 9 for a strip of transparent film F is mounted on the base board 2. The film F is paid out from the supporting means 9, passed through a film sensing arm 10 and laminated to the surface of the label strip L to provide a laminate strip LL. This laminate strip LL is supplied to the foregoing feeding device 8. The laminate strip LL is particularly shown in Fig. 2. In the label strip L, pieces of unit labels U are temporarily stuck to a backing paper S. The printed characters P on a unit label U are protected by applying the film F over the label strip L. The part indicated by a cutting line C is cut by a cutting means (rotary cutter 19) described later, thereby obtaining label laminates A having desired sizes. In order to facilitate the sensing of the position of unit labels U, there are formed trimming portion T between adjacent unit labels U. The laminate strip LL described above is introduced into the feeding device 8 and it is passed through a predetermined passage by a pair of rollers 12 and 13 that are driven by a stepping motor 11. When the laminate strip LL is set, the rollers 12 and 13 are opened apart by moving the knob 14. Provided on the downstream side of the feeding means are sensing means of a photo-sensor 15 for eye marks and a photo-sensor 16 for trimming portion T. They can be changed over electrically from any one to the other in accordance with the kind of label strip L as supplied. In this embodiment, the sensor 16 will be used to detect the trimming portion T. The step next to the sensing means is provided with a rotary cutting device 19 which comprises a stationary blade 17 and a rotary blade 18. The label laminates A that were cut by this cutting device 19 are transferred to the outside of the laminater 1 (stacker unit 39) by means of a delivery means 20. This delivery means 20 is provided with a stationary driving roller unit 21 in the upper part and an openable roller unit 22 which can be opened below on a pivot shaft 23 as indicated by chain lines in Fig. 1. The driving of the delivery means 20 and the rotary blade 18 is carried out by means of an AC motor. More particularly, as shown in Fig. 3, the AC motor 24 and the rotary blade 18 are connected together by a toothed wheel 25, a pulley 26 having a toothed wheel, another pulley 27, a belt 28, and a clutch mechanism (not shown). The clutch mechanism connects the motor 24 and the rotary blade 18 when the sensor 16 detects the trimming portion T and then it returns to the original state. The roller 29 of the driving roller unit 21 is connected to the motor 24 by means of the toothed wheel 25, the pulley 26, a belt 31 and a toothed wheel 32. Coming back to Fig. 1, the roller 29 is connected to other rollers 33 in the driving roller unit 21 by a belt 34. Each of the rollers 29 and 33 is brought into engagement with one of follower rollers 35 in the openable roller unit 22, thereby delivering a cut label laminate A between the respective pairs of opposing rollers. By the way, the numeral 36 denotes a knob which is used for opening the openable roller unit 22. A take-up reel 37 is mounted on the lower side of the openable roller unit 22 on the base board 2. The forward free end of the laminate strip LL is wound up by this reel 37 which is connected to the stepping motor 11 by a round belt 38. The foregoing delivery means 20 is followed by a stacker unit 39 which is provided with a plane frame 40, an upper vertical frame 41, a lower vertical frame 42, a guide frame 43 in the side portion, and a stacker frame 44. This stacker frame 44 is provided with a cradle 45 to receive delivered label laminates LL, a movable frame 46 which moves along the guide frame 43, a roller 47 which rolls on the plane frame 40, and a carrying belt 48. A spiral spring 49 is fixed between stacker frame 44 and the plane frame 40. Thus, the stacker frame 44 is always pulled up. The carrying belt 48 is stretched around pulleys 50 and 51 and one of the pulleys, the pulley 50, is connected to a roller 33 of the driving roller unit 21 through a gear train 52. The vertical frame 42 is provided with a sensor 53 which produces a stop signal when the stacker frame 44 reaches the lowermost position. Fig. 4 shows a drive controlling circuit. A central processing unit (CPU) 54 is connected to an interface 56 for a printer PR by way of a bus line 55. To this bus line 55 are further connected a read only memory (ROM) 57, a random-access memory 58, switches SW1 and SW2, the film sensing arm 10, the sensors 15 (16) and 53, the driving circuit 59 for the stepping motor 11, and the driving circuit 60 for the AC motor 24. The operation of the mechanism of the present invention will be described in the following. The description is started from the lamination of the label strip L with the film F. The label strip L is that delivered from the printer PR is passed through the guide rollers 3 and 5 and the laminating head 6. Meanwhile, the film F is paid out from the supporting means 9 and it is laminated with the label strip L in the portion of the laminating head 6 and the guide roller 7 to obtain a laminate label strip LL. The rollers 12 and 13 are opened by the knob 14 and the laminate strip LL is passed through the rollers 12 and 13. The laminate strip LL is further passed through the sensors 15 and 16, the rotary cutter 19 and the space between the driving roller unit 21 and openable roller unit 22 of the delivery means 20. In this procedure, the openable roller unit 22 is opened down by operating the knob 36. The free end of the laminate strip LL is passed along the series of follower rollers 35 of openable roller unit 22 and the free end is then attached to the take-up reel 37. Then, the start switch SW1 is turned on to drive the feeding device 8 and to rotate the take-up reel 37. In this state, the laminate strip LL is passed through the feeding device 8, sensor 16, rotary cutting device 19 and openable roller unit 22, and it is wound up by the take-up reel 37. When the sensor 16 detects a trimming portion T of the laminate strip LL, the sensor 16 produces a signal to connect the clutch mechanism of the rotary blade 18. The rotary blade 18 is thus actuated to cut the laminate strip LL and the clutch returns to its open position, and the feeding device 8 is stopped. In this step, the openable roller unit 22 is closed to its normal position and the start switch SW2 is then turned on to produce a start signal. Thus, the feeding device 8 and delivery means 20 are moved and laminate strip LL is moved forth. When a predetermined position in the laminate strip LL is detected by the sensor 16, the laminate strip LL is cut at every predetermined length by the rotary cutting device 19. The cut pieces, label laminates A are delivered by the delivery means 20 and stacked one by one on the stacker frame 44 of the stacker unit 39. With the increase of the stacked cut pieces, the stacker frame 44 moves down against the force of the spring 49. When the descending of the stacker frame 44 is detected by the sensor 53, the operation of the whole mechanism is stopped. The backing paper S of the thus prepared label laminates A are peeled off and applied to surfaces of desired articles (not shown) for data controlling or system controlling. Because the surfaces of label laminates A are protected by the film F, they have excellent properties of wear resistance, weather resistance, water resistance, dust resistance and oil resistance and gives a long service life. In the above embodiment, the lamination of labels was described, however, the mechanism of the invention can be used likewise for the lamination of tags. Furthermore, the start signal is produced by the switch SW2, however, it is possible to produce the start signal by the closing operation of the openable roller unit. Still further, in place of the pivotal motion of the openable roller unit, it can be made to open by moving it in the perpendicular direction. As described above, according to the present invention, the forward free end of the laminated label strip is firstly wound up by the take-up reel 37, and the label strip is cut at the stage that the setting is finished. The openable roller unit is then closed to enter into the operation of feeding, cutting and delivering. Accordingly, the mechanism of the invention facilitate the difficult setting of laminated strips.

Claims: A cutting and winding mechanism for a tape-like laminate, comprising: a feeding device (8) which moves forth a laminate strip (LL) through a predetermined passage; a cutting means (19) which cuts said laminate strip into laminate pieces (A) of a predetermined length; a take-up means (37) which winds up the free end of said laminate strip (LL); a drive controlling means (54-60) which drives said take-up means (37); characterised in that said laminate strip (LL) consists of a tape-like printing medium (L) and a tape-like transparent film (F) that is applied on said printing medium in layers in a laminator (1); that a sensing means (15, 16) is provided which detects the position of said laminate strip (LL); that a delivery means (20) is provided which has a driving roller unit (21) and an openable roller unit (22) and which delivers said cut laminate pieces (A) ; that said take-up means (37) winds up the free end of said laminate strip (LL) when said openable roller unit (22) is opened, and when a first start switch (SW1) is turned on; and that, upon the actuation of said first start switch (SW1) the drive controlling means (54 - 60) drives said take-up means (37) in the opened state of said openable roller unit (22) and drives said cutting means (19) by detecting a signal from said sensing means (15, 16) to cut a proper position of said laminate strip (LL) and, upon actuation of a second start switch (SW2) in the closed position of said openable roller unit (22) drives said feeding device (8) and said cutting device (19) upon detecting a further signal from said sensing means (15,16).

Inventors: KASHIWABA, TADAO
Applicants: KABUSHIKI KAISHA SATO
Application year: 1986
Main classification: B26D5
IPC codes: B65H18, B26D5, B65H23, B26D7