Patent Publication Number: US-7594592-B2

Title: Feeder for surface mounting device

Description:
This application is a Continuation of application Ser. No. 09/989,461 filed Nov. 21, 2001 now U.S. Pat. No. 6,748,991. 

   BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a feeder for a surface mounting device, and more particularly, to a feeder for a surface mounting device which carries surface mounting parts to a parts suction position of a nozzle from the surface mounting device for sucking surface mounting parts and mounting them on a printed circuit board. 
   2. Description of the Related Art 
   A surface mounting device includes an X-Y gantry, a module head, a PCB carrier, and a feeder. The module head is assembled to be moved to the X-Y gantry in the X-Y axis direction and sucks surface mounting parts (Hereinafter, referred to as “parts”) onto a printed circuit board carried by the PCB carrier and then mounts them on the printed circuit board. The parts to be mounted on the printed circuit board are carried by the feeder and are mounted on the printed circuit board. The feeder which mounts parts on the printed circuit board will now be described with reference to the accompanying drawings. 
   As illustrated in  FIG. 1 , the feeder includes a vinyl recovery unit  10 , a vinyl separation unit  20  and a feeding unit  30 . A recovery reel  11  is mounted at the vinyl recovery unit  10  and then winds vinyl (V: shown in  FIG. 3 ) carried by the vinyl separation unit  20  to recover the same. The vinyl (V) is separated from a tape (TF: shown in  FIG. 3 ) wound around a tape take-up unit  50  (shown in  FIG. 2 ), and the tape take-up unit  50  is installed at the rear end of the vinyl recovery unit  10 . The tape (TF) fed to the feeder  30  is moved by the feeder at a predetermined pitch for each movement and is carried to a work position. Then, it is sucked by a nozzle (N: shown in  FIG. 2 ), is moved to a printed circuit board (not shown) and is mounted thereon. 
   The feeder which carries the tape (TF) to carry parts to a sucking position of the nozzle (N) includes a vinyl recovery unit  10 , a vinyl separation unit  20 , a feeding unit  30  and a tape take-up unit  50 . The construction of each element will now be described with reference to  FIG. 2 . As illustrated in  FIG. 2 , the vinyl recovery unit  10  includes a recovery reel  11 , a recovery rotation motor  12 , a recovery unit worm  13 , a recovery unit worm gear  14  and a recovery unit gear  15 . The vinyl separation unit  20  includes a separation rotation motor  21 , a separation unit worm  22 , a separation unit worm gear  23 , a first separation unit gear  24 , a second separation unit gear  25 , and a third separation unit gear  26 . The feeder  30  includes a feed rotation motor  31 , a feed worm  32 , a sector gear  33 , a first arm  34 , a second arm  35 , and a driving wheel  36  with driving teeth  36   a.    
   At the vinyl recovery unit  10 , the recovery rotation motor  12  generating a rotation force for rotating the recovery reel  11  is fixedly installed. At the central axis of rotation of the recovery rotation motor  12 , the recovery unit worm  13  is installed. The recovery unit worm  13  is interlockingly rotated by the rotation of the recovery rotation motor  12 , and the recovery unit worm gear  14  is rotated by the rotation of the recovery unit worm  13 . The recovery unit worm  13  and the recovery unit worm gear  14  change a rotational direction generated from the recovery rotation motor  14  and transfers the same to the recovery unit gear  15 . The recovery unit gear  15  having received a rotation force winds the vinyl (V) shown in  FIG. 3  to recover the same by rotating the recovery reel  11  in a predetermined direction. 
   The vinyl (V) wound round the recovery reel  11  of the vinyl recovery unit  10  is carried to the vinyl separation unit  20 . With respect to the vinyl separation unit  20 , the rotation force generated from the vinyl rotation motor  21  is transferred to the separation unit worm  22  assembled at the central axis of rotation. The rotation force transferred to the separation unit worm  22  is transferred to the separation unit worm gear  23  assembled at the separation unit worm  22 . In this process, the rotational direction is changed to be transferred to the first separation unit gear  24 . The first separation unit gear  24  is assembled with the second separation unit gear  25  and the third separation unit gear  26  sequentially, and the second separation unit gear  25  and the third separation unit gear  26  are rotated in the reverse direction with each other by the rotation of the first separation unit gear  24 . 
   While the second separation unit gear  25  and the third separation unit gear  26  are rotated in the reverse direction, as shown in  FIG. 3 , the vinyl (V) attached to the tape (TF) is inserted between the second separation unit gear  25  and the third separation unit gear  26  and then the inserted vinyl (V) is carried to the vinyl recovery unit  10 . Here, the tape (TF) is moved to the bottom of a cover  41  as shown in  FIG. 3  by the rotation of the tape take-up unit  50  in a state where it is wound around the tape take-up unit  50 . The tape (TF) moved to the cover  41  is carried to a suction position (A) in a state where the vinyl (V) attached to the tape (TF) is removed. The tape (TF) has a plurality of parts mounting grooves (L) formed at a constant interval, and parts are mounted inside each of the parts mounting grooves (L) When the parts mounting groove (L) with a parts mounted thereto is carried to the suction position (A) of the nozzle (N), a shutter  42  assembled at a cover  41  is opened so that the nozzle (N) can suck the parts. In this state, the nozzle (N) sucks the parts and carries it to the printed circuit board. 
   To carry the tape (TF) at a predetermined interval, a plurality of transfer holes (H) are formed at one end of the tape (TF) at a predetermined interval. To insert the tape (TF) into the transfer holes (H) formed at a predetermined interval and carry the same at a constant pitch interval, the feeding unit  30  is installed at the bottom of the tape (TF). In the feeding unit  30 , a rotation force is generated from the feed rotation motor  31  in order to carry the tap (TF) at a constant pitch interval. The rotation force generated from the feed rotation motor  31  is transferred to the feed worm  32  assembled at the central axis of rotation of the feed rotation motor  31 , and thusly the sector gear  33  assembled at the bottom of the feed worm  32  is driven. 
   When the sector gear  33  is driven, the first arm  34  and second arm  35  assembled at the sector gear  33  are driven to rotate the driving wheel  36  assembled at the second arm  35  at a constant pitch. On the outer circumferential surface of the driving wheel  36  rotated at a constant pitch, the driving teeth  36   a  are formed at a constant interval. The driving teeth  36   a  are inserted into the transfer holes (H) formed at the tape (TF) and carries the tape (TF) at a constant pitch to move the parts to the suction position (A) by the rotation of the driving wheel  36 . Here, a reverse rotation preventing member  37  assembled at the driving wheel  36  prevents the reverse rotation of the driving wheel  36 . 
   In the above-described feeder of the conventional art, since a great number of elements including a rotation motor, worm gear and linking gear are used for driving the vinyl recovery unit, vinyl separation unit and feeding unit respectively, the structure is made complex and a number of steps of assembling is increased. In addition, the driving wheel carrying the tape at a constant pitch is provided with the reverse rotation preventing member, thus disabling the adjustment of the position of the tape if a parts is deviated from a designated position. 
   SUMMARY OF THE INVENTION 
   It is, therefore, an object of the present invention to provide a feeder for a surface mounting device in which the constitution of the feeder is simplified by forming integrally a parts feeding unit carrying the tape wrapped up parts at a constant pitch, thus enabling a forward/backward rotation and adjusting the feed position of the tape. 
   It is another object of the present invention to provide a feeder for a surface mounting device in which a parts feeding unit is formed integrally, thus performing an assembling process easily, and a forward/backward rotation of the tape is possible, thus adjusting the feed position of the tape. 
   To achieve the above objects, there is provided a feeder for the surface mounting device comprising: a feeding unit being installed at one side of a main frame, having a plurality of armature coils and a circular permanent magnetic unit facing the plurality of armature coils to generate a rotation/reverse rotation force and carry a rape at a predetermined pitch interval and having a position sensing unit and a position detecting disk capable of sensing the position of the circular permanent magnetic unit; a vinyl separation unit being assembled at the main frame and carrying the vinyl removed from the tape by the rotation force generated from the feeding unit or re-carrying the vinyl by the reverse rotation force; and a vinyl recovery unit being assembled at the other end of the main frame, being connected to the vinyl separation unit by a belt, and recovering the vinyl by winding the same by the rotation force transferred from the vinyl separation unit through the belt  133  or discharging the vinyl to the vinyl separation unit by the reverse rotation force. 
   In addition, there is provided a feeder for the surface mounting device comprising: a feeding unit including a first disc member installed a plurality of armature coils and a rotation shaft rotatably installed at its center; a second disc member inserted and installed to the rotation shaft to be linked and rotated by the rotation of the rotation shaft; a circular permanent magnetic unit mounted to the second disc member and for generating a rotation/reverse rotation force by the interaction with the armature coils mounted to an upper portion of the first disc member; a second feeding unit gear installed at a predetermined distance on the second disc member to transfer the rotation force of the rotation shaft; a first feeding unit gear installed at a predetermined distance on the second feeding unit gear to transfer the rotation force of the rotation shaft; a driving gear connected to the first feeding unit gear by a first gear and having driving teeth formed on its outer circumferential surface to carry a tape to a suction position with a constant pitch by receiving the rotation/reverse rotation force transferred from the first gear; a position detecting unit gear connected to the second feeding unit gear by a second gear and for rotating the rotation shaft by receiving the rotation/reverse rotation force generated from the second feeding unit gear; a position detecting unit installed to the other end of the rotation shaft to sense the rotation speed of the rotation shaft; a vinyl separation unit being assembled at the main frame and carrying the vinyl removed from the tape by the rotation force generated from the feeding unit or re-carrying the vinyl by the reverse rotation force; and a vinyl recovery unit being assembled at the other end of the main frame, being connected to the vinyl separation unit by a belt, and recovering the vinyl by winding the same by the rotation force transferred from the vinyl separation unit through the belt  133  or discharging the vinyl to the vinyl separation unit by the reverse rotation force. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The above objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which: 
       FIG. 1  is a perspective view of a feeder for a surface mounting device according to the conventional art; 
       FIG. 2  is a front view of the feeder as shown in  FIG. 1 ; 
       FIG. 3  is a perspective view of a shutter as shown in  FIG. 1 ; 
       FIG. 4  is a front view of a feeder for a surface mounting device according to a first embodiment of the present invention; 
       FIG. 5  is a perspective view of a driving unit as shown in  FIG. 4 ; 
       FIG. 6  is a side cross-sectional view of the driving unit as shown in  FIG. 5 ; 
       FIG. 7  is a front view of a feeder for a surface mounting device according to a second embodiment of the present invention 
       FIG. 8  is a perspective view of a driving gear as shown in  FIG. 7 ; 
       FIG. 9  is a side cross-sectional view of the driving gear as shown in  FIG. 8 ; 
       FIG. 10  is a perspective view of a driving gear and a feeding unit gear as shown in  FIG. 7 ; 
       FIG. 11  is a side cross-sectional of the driving gear and the feeding unit gear as shown in  FIG. 10 ; and 
       FIG. 12  is a side cross-sectional view illustrating the feeder for the surface mounting device according the second embodiment of the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
   A first embodiment of the present invention will now be described with reference to the accompanying drawings. 
     FIG. 4  is a front view of a feeder for a surface mounting device according to the present invention.  FIG. 5  is a perspective view of a driving unit as shown in  FIG. 4 .  FIG. 6  is a side cross-sectional view of the driving unit as shown in  FIG. 5 . 
   As shown in  FIGS. 4 through 6 , the feeder for the surface mounting device includes: a feeding unit  110  being installed at one side of a main frame  100 , having a plurality of armature coils  113  and a circular permanent magnetic unit  117  facing the plurality of armature coils  113  to generate a rotation/reverse rotation force by the interaction between the armature coils  113  and the circular permanent magnetic unit  117  and carry a tape (TF) at a predetermined pitch interval by the rotation/reverse rotation force generated from the circular permanent magnetic unit  117 , and having a position sensing unit  114  for sensing the position of the circular permanent magnetic unit  117  installed at one end of the circular permanent magnetic unit  117 ; a vinyl separation unit  120  being assembled at the main frame  100 , being connected to the feeder  110 , and carrying the vinyl (V) removed from the tape (TF) by the rotation force generated from the feeding unit  110  or re-carrying the vinyl (V) by the reverse rotation force; and a vinyl recovery unit  130  being assembled at the other end of the main frame  130 , being connected to the vinyl separation unit  120  by a belt  133 , and recovering the vinyl (V) by winding the same by the rotation force transferred from the vinyl separation unit  120  through the belt  133  or discharging the vinyl (V) to the vinyl separation unit  120  by the reverse rotation force. 
   The constitution and operation of the feeder for the surface mounting device according to the first embodiment of the present invention will now be described in more detail. 
   According to the first embodiment of the present invention, the feeder for the surface mounting device includes a feeding unit  110 , a vinyl separation unit  120 , and a vinyl recovery unit  130 . As illustrated in  FIG. 4 , the feeding unit  110  is installed at one side of the main frame  100 , anfFd the vinyl recovery unit  130  is installed at the other side of the main frame  100 . The vinyl separation unit  120  is assembled between the feeding unit  110  assembled at one side of the main frame  100  and the vinyl separation unit  130  assembled at the other side thereof. The tape (TF) with which a parts is packaged is stored in a reel shape in a state where it is recovered by the vinyl recovery unit  130 . 
   The tape (TF) is fed to the feeding unit  110  from a tape take-up unit  50  installed at the rear end of the vinyl recovery unit  130  along the upper side of the main frame  100 . When the vinyl (V) is separated from the tape (TF) fed to the feeding unit  110  and a parts is carried to an suction position (O), a nozzle (N) is moved in a vertical direction to suck the parts and carry it to a printed circuit board (not shown). The tape (TF) from which the vinyl (V) is removed is discharged to the bottom of one end of the main frame  100 . So that the nozzle (N) can suck the parts, the vinyl (V) separated from the tape (TF) is hung onto the vinyl separation unit  120 , is carried at a constant pitch interval of the tape (TF) , and then is discharged to the outside. Here, when carrying the tape (TF), if the parts is not accurately carried, the tape (TF) is reversely carried, so that the nozzle (N) can suck the parts. 
   To reversely carry the tape (TF) by making the rotation/reverse rotation of the feeding unit  110  possible, the feeding unit  110  has a plurality of armature coils  113  in a circle and a circular permanent magnetic unit  117  facing the plurality of armature coils  113 , for thereby generating a rotation/reverse rotation force by the interaction between the armature coils  113  and the circular permanent magnetic unit  117 . The circular permanent magnetic unit  117  is formed of a plurality of N polar permanent magnets  117   a  and S polar magnets  117   b  arranged in turns. 
   To sense the rotation/reverse rotation force generated from the armature coils  113  and the circular permanent magnetic unit  117 , a position sensing unit  114  is provided at the feeding unit  110 . The position sensing unit  114  is installed at a predetermined distance from the armature coils  113  and the circular permanent magnetic unit  117  so that it can be connected to the armature coils  113  and the circular permanent magnetic unit  117  by a gear  124 . The rotation speed sensed by the position sensing unit  114  is used for precisely controlling the carrying of the tape (TF) with which a parts (not shown) is packaged to the suction position (O) of the nozzle (N) by a controller (not shown). At a predetermined portion of the position sensing unit  114 , as illustrated in  FIG. 6 , a light receiving element  114   a  and a light emitting element  114   b  are installed. 
   The feeding unit  110  and the vinyl separation unit  120  are connected so that they are synchronized and rotated by the rotation of the feeding unit  110  upon receipt of the rotation/reverse rotation force generated from the feeding unit  110  carrying the tape (TF) to the suction position (O) of the nozzle (N). The vinyl separation unit  120  is rotated to discharge the vinyl (V) taken off from the tape (TF) to the outside by the rotation force generated from the feeding unit  110  or to re-carry the vinyl (V) to the feeding unit  110  by the reverse rotation force. That is, when the feeding unit  110  carries the tape to the suction position (O) of the nozzle (N) by rotation, the vinyl separation unit  120  is rotated to discharge the vinyl separated from the tape (TF) to the outside. 
   In a case that the feeding unit  113  reversely carries the tape (TF) by reverse rotation, the vinyl separation unit  120  is synchronized with the reverse rotation of the feeding unit  110  and reversely rotated to re-carry the vinyl (V) to the feeding unit  10 . The vinyl recovery unit  130  synchronized by the rotation/reverse rotation of the feeding unit  110  and the vinyl separation unit  120  to discharge and carry the tape (TF) is connected to the vinyl separation unit  120  by the belt  133 , for thereby recovering the vinyl (V) by winding the same by the rotation force transferred from the vinyl separation unit  120  or discharging the vinyl (V) to the vinyl separation unit  120  by the reverse rotation force. 
   The constitution of the feeding unit  110 , vinyl separation unit  120  and vinyl separation unit  130  capable of rotation/reverse rotation will now be described in more detail. Firstly, the feeding unit  110  includes a first disc member  111 , a position sensing unit  114 , a feeding unit gear  115 , a driving gear  116 , a circular permanent magnetic unit  117 , a second disc member  118 , and a position detecting disc  119 . 
   The first disc member  111  is fixedly assembled at one side of the main frame  100  and has a plurality of armature coils  113  assembled on the plane at a predetermined interval and a rotating shaft  112  rotatably installed at the center. Here, the first disc member  111  is provided with a ball bearing  111   a  so that the rotating shaft  112  can be smoothly rotated. At one end of the rotating shaft  112  assembled at the central axis of the first disc member  111 , the second disc member  118  is fixedly installed. 
   The second disc member  118  fixedly assembled at one end of the rotating shaft  112  is interlockingly rotated by the rotation of the rotating shaft  112 . At the bottom of the second disc member  118 , the circular permanent magnetic unit  117  is connected. The circular permanent magnetic unit  117  assembled at the second disc member  118  generates a rotation/reverse rotation force by the interaction with the armature coils  113  assembled on the surface of the first disc member  111 . By the rotation/reverse rotation force generated between the permanent magnetic unit  117  and the armature coils  113 , the rotating shaft  112  is rotated/reversely rotated. 
   At one end of the rotating shaft  112  rotated/reversely rotated, the position detecting disc  119  is installed. The position detecting disc  119  has a plurality of slots forming a circle, has a position sensing unit  114  inserted into the rotating shaft  112  to be assembled at one end thereof, and is connected to the feeding unit gear  116  at the upper side. The feeding unit gear  115  and the driving gear  116  are connected by a gear  124  at a predetermined distance from each other. Here, the position sensing unit  114  senses the rotating position of the position detecting disc  119  to transfer it to a controller (not shown). The controller is used for controlling the carrying operation of the tape (TF) more precisely by receiving the transferred rotating position. 
   On the outer circumferential surface of the driving gear  116 , driving teeth  116   a  to be inserted into the transfer holes (H: shown in  FIG. 3 ) are formed. The driving teeth  116   a  formed on the outer circumferential surface of the driving gear  116  at a constant interval are moved at a constant pitch interval at the rotation/reverse rotation of the driving gear  116  to carry the tape (TF) to the suction position (O) of the nozzle (N) or reversely carry the tape (TF) carried to the suction position (O), for thereby precisely carrying a parts to the suction position (O). 
   The feeding unit  110  carrying the tape (TF) to the suction position (O) by the driving gear  116  or generating a driving fore for rotating the driving gear  116  is directly connected to the vinyl separation unit  120 . That is, the position detecting disc  119  of the feeding unit  110  and a first separation unit gear  121  of the vinyl separation unit  120  are connected and thus the rotation/reverse rotation force transferred from the position detecting disc  119  is transferred to the first separation unit gear  121 . 
   The vinyl separation unit  120  receiving the rotation/reverse rotation force through the first separation unit gear  121  includes a first separation unit gear  121 , a second separation unit gear  122 , and a vinyl discharge gear  123 . The first separation unit  121  transfers the rotation/reverse rotation force transferred from the position detecting disc  119  to the second separation unit gear  122 . The second separation unit gear  122  having received the rotation/reverse rotation force is connected to one end of the first separation unit gear  121  to thus transfer the rotation/reverse rotation force transferred from the first separation unit gear  121  to the vinyl discharge gear  123 . 
   The vinyl discharge gear  123  includes a plurality of gears and is rotated in the reverse direction to carry the vinyl (V) to the vinyl recovery unit  130  when it receives the rotation force transferred from the second separation unit gear  122 , or to re-carry the vinyl (V) to the feeding unit  110  when it receives the reverse rotation force. The vinyl recovery unit  130  is connected to the first separation unit gear  121  of the vinyl separation unit  120  carrying and re-carrying the vinyl (V) by the belt  133 . 
   The vinyl recovery unit  130  includes a recovery unit gear  131  and a recovery reel  132 . The recovery unit gear  131  is connected to the first separation unit gear  121  by the belt  133  to receive the rotation/reverse rotation force of the first separation unit gear  121 . The recovery unit gear  131  having received the rotation/reverse rotation force is synchronized with the recovery reel  132  when the feeding unit  110  adjusts the feed position of the tape (TF) by rotating/reversely rotating the recovery reel  132  assembled at one side according to the rotation/reverse rotation force, for thereby recovering the vinyl (V) by winding it around the recovery reel  312  or discharging the recovered vinyl (V) to the vinyl separation unit  120 . 
   Meanwhile,  FIG. 7  is a front view of a feeder for a surface mounting device according to a second embodiment of the present invention;  FIG. 8  is a perspective view of a driving gear as shown in  FIG. 7 ;  FIG. 9  is a side cross-sectional view of the driving gear as shown in  FIG. 8 ;  FIG. 10  is a perspective view of a driving gear and a feeding unit gear as shown in  FIG. 7 ;  FIG. 11  is a side cross-sectional of the driving gear and the feeding unit gear as shown in  FIG. 10 ; and  FIG. 12  is a side cross-sectional view illustrating the feeder for the surface mounting device according the second embodiment of the present invention. 
   In the drawings, the same elements as in the first embodiment has the same reference numerals, so a detailed description thereof will be omitted. 
   As shown in  FIGS. 7 through 11 , the feeder for the surface mounting device includes: a feeding unit  110  being installed at one side of a main frame  100 , having a plurality of armature coils  113 , generating a rotation/reverse rotation force by rotating a circular permanent magnetic unit  117  by the interaction between the armature coils  113  and the circular permanent magnetic unit  117 , carrying a tape (TF) at a predetermined pitch interval by receiving the rotation force generated from the plurality of armature coils  113  and the circular permanent magnetic unit  117  through a first gear  124   a  at a predetermined distance from the plurality of armature coils  113  and the circular permanent magnetic unit  117 , and sensing a rotating position of the circular permanent magnetic unit  117  by receiving the rotation force through a second gear  124   b  at a predetermined distance from the lower side of the plurality of armature coils  113  and circular permanent magnetic unit  117 ; a vinyl separation unit  120  being assembled at the main frame  100 , being connected to the feeder  110 , and carrying the vinyl (V) removed from the tape (TF) by the rotation force generated from the feeding unit  110  or re-carrying the vinyl (V) by the reverse rotation force; and a vinyl recovery unit  130  being assembled at the other end of the main frame  130 , being connected to the vinyl separation unit  120  by a belt  133 , and recovering the vinyl (V) by winding the same by the rotation force transferred from the vinyl separation unit  120  through the belt  133  or discharging the vinyl (V) to the vinyl separation unit  120  by the reverse rotation force. 
   Since the construction and operation of the second embodiment of the present invention are similar to the first embodiment of the present invention, so repetitive explanations to the same parts will be omitted. 
   According to the second embodiment of the present invention, the feeder for the surface mounting device includes a feeding unit  110 , a vinyl separation unit  120 , and a vinyl recovery unit  130 . The construction of each element is similar to those in the first embodiment, so it will be described from the viewpoint of the differences. 
   Firstly, the feeding unit  110  generating a rotation/reverse rotation force includes a first disc member  111 , a position detecting unit  114 , a second feeding unit gear  115   a , a position sensing unit gear  115   b , a driving gear  116 , a circular permanent magnetic unit  117 , a second disc member  118 , and a first feeding unit gear  219 . 
   The construction and operation of first and second disc members  111  and  118  are the same as those of the first embodiment, so they will be omitted. 
   In addition, as the position detecting unit  114 , an encoder is used. 
   At one end of the upper part of a rotating shaft  112  which is rotate or reversely rotate, the first feeding unit gear  219  is installed as shown in  FIGS. 8 and 9 . The first feeding unit gear  219  is inserted into the rotating shaft  112  and is installed at a predetermined distance from the second feeding unit gear  115   a  and the second disc member  118  to thus be interlockingly rotated by the rotation of the rotating shaft  112 . The first feeding unit gear  219  is connected to a first gear  124   a , and the first gear  124   a  is connected to the driving gear  116 . The driving gear  116  connected to the first gear  124   a  is rotated by receiving the rotation/reverse rotation force transferred from the first gear  124   a.    
   On the outer circumferential surface of the driving gear  116 , driving teeth  116   a  are formed to carry or re-carry a tape (TF) to a suction position (O). The driving teeth  116   a  for carrying the tape (TF) at a constant pitch interval are formed on the outer circumferential surface of the driving gear  116  at a constant interval. The driving teeth  116   a  are inserted into transfer holes (H: shown in  FIG. 3 ) formed at the tape (TF) and are rotated at a constant pitch interval by the rotation of the driving gear  116  for thereby carrying the tape (TF) to the suction position (O) or reversely carrying it. 
   At the first feeding unit gear  219  connected with the first gear  124   a , the second gear  124   b  is connected. The position sensing unit gear  115   b  connected with the second feeding unit gear  115   a  by using the second gear  124   b  receives the rotation/reverse rotation force of the second driving gear  115   a  through the second gear  124   b . Here, the first feeding unit gear  219  and the position sensing unit gear  115   b  connected by the second gear  124   b  can be connected by a belt  115   c  in place of the second gear  124   b  as shown in  FIG. 12 , for thereby making the construction simpler. 
   The position sensing unit gear  115   b  receiving the rotation/reverse rotation force fed from the second gear  124   b  or the belt  115   c  rotates the central axis  112   a  of rotation by the rotation/reverse rotation force transferred from the position sensing unit gear  115   b . The central axis  112   a  of rotation is rotatably assembled at the main frame  100  and is non-rotatably connected to the central axis of rotation of the position sensing unit gear  115   b  to thus be rotated by the rotation of the position sensing unit gear  115   b . At the other end of the central axis  112   a  of rotation rotated by the position sensing unit gear  115   b , a position sensing unit  114  for sensing a rotation speed is installed. 
   The position sensing unit  114  is inserted into the central axis  112   a  of rotation to sense the rotation speed of the central axis  112   a  of rotation. The position sensing unit for sensing the rotation speed of the central axis  112   a  of rotation transmits a sensed rotation speed to a controller (not shown). The controller adjusts the feed operation of the tape (TF) by using a received rotation speed more precisely. 
   The feeding unit  110  for carrying the tape (TF) to the suction position (O) or sensing the rotation speed is directly connected to the vinyl separation unit  120 . That is, the first feeding unit gear  219  of the feeding unit  110  and the first separation unit gear  121  of the vinyl separation unit  120  are connected, and thus the first separation unit gear  121  receives the rotation/reverse rotation force transferred from the first feeding unit gear  219 . 
   The vinyl separation unit  120  receiving the rotation/reverse rotation force through the first separation unit gear  121  includes a first separation unit gear  121 , a second separation unit gear  122 , and a vinyl discharge gear  123 . The first separation unit gear  121  transfers the rotation/reverse rotation force transferred from the first feeding unit gear  219  to the second separation unit gear  122 . The second separation unit gear  122  having received the rotation/reverse rotation force is connected to one end of the first separation unit gear  121  to transfer the rotation/reverse rotation force transferred from the first separation unit gear  121  to the vinyl discharge gear  123 . 
   The construction and operation of the vinyl discharge gear  123  and the vinyl recovery unit  130  are the same as those according to the first embodiment, so they will be omitted. 
   As seen from above, the feeder for carrying the tape at a constant pitch is formed integrally, thus improving a feed rate and simplifying the constitution of the feeder. In addition, the feeder, vinyl separation unit and vinyl recovery unit are rotated/reversely rotated by synchronization with one another, thus adjusting the feed position of the tape. 
   As explained above, the feeder for the surface mounting device of the present invention can improve a feed rate and simplify the constitution of the feeder by forming the feeder for carrying the tape at a constant pitch integrally. In addition, the feeder, vinyl separation unit and vinyl recovery unit are rotated/reversely rotated by synchronization with one another, thus adjusting the feed position of the tape.