WO2014207808A1

WO2014207808A1 - Feeder control device

Info

Publication number: WO2014207808A1
Application number: PCT/JP2013/067257
Authority: WO
Inventors: 明宏野田
Original assignee: 富士機械製造株式会社
Priority date: 2013-06-24
Filing date: 2013-06-24
Publication date: 2014-12-31
Also published as: CN105325069A; CN105325069B; JPWO2014207808A1; JP6143865B2

Abstract

The purpose of the present invention is to provide a feeder control device configured such that only in cases involving components requiring supply precision are sprockets made to engage with a component supply tape after deriving starting positions of the sprockets. Accordingly, the present invention is provided with a controller which (steps (106-114)) supplies components to component suction positions. In cases when a component supply tape (12) accommodating components smaller than a prescribed size is set in a tape feeder (11), the controller supplies the components to the component suction positions by rotationally driving sprockets (42) until starting points thereof are detected by starting-point detection means (87, 87a), and subsequently maneuvering the sprockets into engagement positions. In cases when a component supply tape accommodating components larger than the prescribed size is set in the tape feeder, the controller supplies the components to the component suction positions by maneuvering the sprockets from retracted positions into the engagement positions, and subsequently rotationally driving each of the sprockets by a prescribed angle, regardless of pitch error, until the starting points of the sprockets are detected.

Description

Feeder control device

The present invention relates to a feeder control device that sends a component housed in a component supply tape to a component suction position by rotation of a sprocket.

Parts supply tape is used as a tape feeder that engages sprocket teeth with sprocket holes formed in a part supply tape that contains a large number of parts at a specified pitch, and sends the parts stored in the part supply tape to the parts suction position by rotating the sprocket. For example, Japanese Patent Application Laid-Open No. H10-228667 describes a sprocket that automatically meshes with the sprocket teeth.

In this type of tape feeder, since there is a pitch error in the sprocket teeth, it is necessary to control the rotation of the sprocket according to the pitch error of the sprocket teeth, in particular, in order to accurately position extremely small parts at the component suction position. There is. In this case, since the origin of the sprocket teeth is not detected immediately after the feeder is inserted, the sprocket teeth are rotated until the origin is detected, and the sprocket is rotated from the origin position according to the pitch error of the sprocket teeth. It is supposed to be.

JP 2013-98382 A

By the way, in the tape feeder described in Patent Document 1, the tape supplier can be attached to and detached from the feeder main body. After the tape supplier is mounted on the feeder main body, the sprocket is raised and the sprocket teeth are moved. It is engaged with the sprocket hole of the component supply tape. Therefore, when the tape supplier is installed in the feeder body, the component supply tape and sprocket are not meshed, so if the origin of the sprocket is not detected before the component supply tape and sprocket are meshed, Therefore, the rotation of the sprocket cannot be controlled. For this reason, particularly in the case of extremely small parts, the sprocket cannot be accurately supplied to a position where it can be sucked by the suction nozzle.

However, if the sprocket is indexed to the origin each time the component supply tape and the sprocket are engaged, it takes time to send the first component stored in the component supply tape to the component suction position. As a result, there is a problem that efficient component mounting cannot be performed.

The present invention has been made to solve the above-described problems, and provides a feeder control device in which only a component that requires feeding accuracy is indexed with the sprocket at the origin and the sprocket and the component supply tape are meshed with each other. It is intended to do.

In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that the sprocket teeth are meshed with sprocket holes formed in a component supply tape in which a large number of components are stored at a predetermined pitch, and the sprocket rotates to rotate the components. A tape feeder for sending a component housed in a supply tape to a component suction position, the sprocket being engaged with a sprocket hole of the component supply tape, and the tooth being inserted from a sprocket hole of the component supply tape; An operating mechanism that operates between a retraction position positioned below, a pitch error storage means that stores a pitch error of the teeth from the origin position of the sprocket, and rotation control of the sprocket according to the pitch error Rotation control means, origin detection means for detecting the origin position of the sprocket, and tape feeder When the component supply tape containing components smaller than a predetermined size is set, the sprocket is rotated until the origin is detected by the origin detection means before operating the sprocket to the meshing position, When the component supply tape storing a component larger than a predetermined size is set in the tape feeder, the sprocket is operated from the retracted position to the meshing position, and then the origin of the sprocket is detected. And a control unit that rotates the sprocket by a predetermined angle regardless of the pitch error and sends the component to the component suction position.

The invention according to claim 2 is characterized in that an identification ID is provided on the tape feeder, and based on the identification ID, whether or not the component supply tape containing a component smaller than a predetermined size is set in the tape feeder The feeder control device according to claim 1, wherein it is possible to determine whether or not the component supply tape storing a component larger than the size of is set.

The invention according to claim 3 is characterized in that a tape supplier provided with the sprocket and the operating mechanism is detachably attached to the feeder body, the identification ID is provided to the tape supplier, and the identification ID is assigned to the feeder body. The feeder control device according to claim 2, which is read by a reader provided on the feeder.

A feature of the invention according to claim 4 is that, when the component supply tape storing a component larger than a predetermined size is set in the tape feeder, the sprocket causes the pitch error until the origin of the sprocket is detected. Regardless of rotation, a rotation control means is provided for rotating the sprocket according to the pitch error after the component is rotated by a predetermined angle to send the component to the component suction position and the origin is detected. 4. The feeder control device according to claim 1.

According to a fifth aspect of the present invention, when the sprocket is operated to the meshing position by the operating mechanism, teeth of the sprocket are engaged with the sprocket holes of the component supply tape, and the sprocket is meshed. The feeder control device according to any one of claims 1 to 3, further comprising a meshing detection unit that detects that the actuator has been operated to a position.

According to the first aspect of the present invention, when a component supply tape containing components smaller than a predetermined size is set in the tape feeder, the origin is detected by the origin detection means before the sprocket is operated to the meshing position. Rotate the sprocket until it is in place, and when a parts supply tape that contains parts larger than the specified size is set in the tape feeder, move the sprocket from the retracted position to the meshing position, and then detect the sprocket origin A control unit that rotates the sprocket by a predetermined angle regardless of the pitch error and sends the component to the component pick-up position.

Thus, when a component supply tape containing a component larger than a predetermined size that does not require much feed accuracy is set, the sprocket is operated from the retracted position to the meshing position without indexing the sprocket to the origin, The sprocket can be rotated by a predetermined angle regardless of the pitch error to send the component to the component pick-up position, so the time to send the first component stored in the component supply tape to the component pick-up position can be shortened And component mounting work can be performed efficiently.

According to the invention of claim 2, the tape feeder is provided with an identification ID, and based on the identification ID, a component supply tape containing a component smaller than the predetermined size is set in the tape feeder or is smaller than the predetermined size. Since it was possible to determine whether a component supply tape containing a large component was set, the type (size) of the component stored in the component supply tape can be identified based on the identification ID provided in the tape feeder, Based on this, the control means can be accurately controlled.

According to the invention of claim 3, since the tape supplier provided with the sprocket and the operating mechanism is detachably attached to the feeder body, the identification ID is provided to the tape supplier, and the identification ID is read by the reader provided on the feeder body. Even when a plurality of tape suppliers are mounted on the feeder main body, the type (size) of the component stored in the component supply tape of each tape supplier can be identified by reading the identification ID provided on each tape supplier.

According to the fourth aspect of the present invention, when a component supply tape containing a component larger than a predetermined size is set in the tape feeder, the sprocket is set at a predetermined angle regardless of the pitch error until the origin of the sprocket is detected. After rotating and sending the component to the component pick-up position and detecting the origin, it has rotation control means to control the rotation of the sprocket according to the pitch error, so that the sprocket is engaged with the sprocket hole of the component supply tape After the sprocket origin is detected, the rotation of the sprocket can be controlled according to the pitch error.

According to the fifth aspect of the invention, when the sprocket is operated to the meshing position by the operating mechanism, it is detected that the sprocket teeth are engaged with the sprocket holes of the component supply tape and the sprocket is operated to the meshing position. Since the mesh detection means is provided, if the sprocket teeth do not mesh well with the sprocket holes in the component supply tape and no detection signal is obtained from the mesh detection means, the sprocket is rotated forward and backward, etc. Can be reliably meshed with the sprocket holes of the component supply tape.

It is the whole tape feeder perspective view showing an embodiment of the invention. It is a perspective view of the tape supplier with which a tape feeder is mounted | worn. It is a perspective view which shows the attachment structure of a sprocket drive unit. It is a right view which shows the structure of the drive device which rotates a sprocket. It is a left view which shows the structure of the drive device which rotates a sprocket. It is a perspective view of the feeder mounting base of a component mounting machine. It is a block diagram of the control apparatus which controls a tape feeder. It is a flowchart which shows the control operation of a tape feeder.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The tape feeder 11 shown in FIG. 1 supplies components to a component suction position where components are sucked by a suction nozzle (not shown), and the feeder main body is arranged so that a plurality of component supply tapes 12 can be set in the horizontal width direction. The width 13 is configured to be larger than the width of a conventional general tape feeder (tape feeder capable of setting only one component supply tape).

The component supply tape 12 is not shown in detail, but the components are stored in the component storage recesses formed in a line at a predetermined pitch on the carrier tape, and the top tape (cover tape) is adhered to the upper surface of the carrier tape. It is. At one end in the width direction of the component supply tape 12, sprocket holes (not shown) are formed at a constant pitch along the longitudinal direction of the component supply tape 12, and by rotation of a sprocket described later that meshes with the sprocket holes. The component supply tape 12 is sent.

A handle 14 and an operation panel 15 are provided at the upper part of the rear side (removal direction side) of the feeder main body 13, and a reel holder for storing a tape reel 16 around which the component supply tape 12 is wound. 17 is provided. The reel holder 17 is formed so as to store a plurality of tape reels 16 arranged in two rows in the front and rear, and is stored so that each tape reel 16 can be rotated in the reel holder 17 as the component supply tape 12 is pulled out. . The operation panel 15 is provided with operation keys and the like for inputting various operation signals such as a tape supplier mounting work start signal for each tape supplier 21 described later.

The component supply tape 12 drawn from each tape reel 16 is supplied to a component suction position by each tape supplier 21 described later. Each tape supplier 21 is detachably attached to the feeder body 13, and the width of each tape supplier 21 is larger than the width of the component supply tape 12 so that only one component supply tape 12 is set in each tape supplier 21. Slightly larger dimensions are formed.

As shown in FIG. 2, a reel hooking portion 22 for holding the tape reel 16 on the tape supplier 21 removed from the feeder body 13 is provided at the rear end portion of each tape supplier 21. The tape reel 16 can be hooked and held.

The tape supplier 21 is provided with a cover tape peeling device 23 that peels off the cover tape that covers the upper surface of the component supply tape 12, and a cover tape collection case 24 that collects the cover tape peeled off from the component supply tape 12. . The cover tape peeling device 23 includes a peeling roller 25, a tension roller 26, and a pair of cover tape feed gears 28, 29. The cover tape peeled off by the peeling roller 25 is passed over the tension roller 26 and covered with the cover tape. It is sandwiched between the feed gears 28 and 29 and fed into the cover tape collecting case 24.

As shown in FIG. 1, a cover tape feed motor 33 as a drive source for the cover tape feed gears 28 and 29 is provided on the feeder main body 13 side, and the motor 33 is mounted when the tape supplier 21 is mounted on the feeder main body 13. The one cover tape feed gear 28 meshes with the drive gear 34 that is driven by the two, so that both cover tape feed gears 28 and 29 are rotationally driven.

As shown in FIG. 2, the tape supplier 21 has a plurality of horizontal U-shaped

tape holding portions

37 and 38 that hold only one side in the width direction of the component supply tape 12 on one side in the width direction of the component supply tape 12. Are alternately arranged in a staggered manner on the other side, and the

tape holding portions

37 and 38 are arranged inward in the width direction of the component supply tape 12 so as to hold the component supply tape 12 while meandering the component supply tape 12 slightly in the width direction. The component supply tape 12 can be held with a smaller width by being arranged little by little.

The same number of sprocket drive units 41 as the number of component supply tapes 12 that can be set on the feeder main body 13 are arranged side by side in the width direction on the distal end side of the feeder main body 13. As shown in FIGS. 3 and 4, each sprocket drive unit 41 includes a rotating member 30 that can rotate about a support shaft 51, a sprocket 42 that is rotatably supported by the rotating member 30, The sprocket 42 is installed on the member 30 and is configured by a sprocket rotating motor 44 or the like that drives the sprocket 42 via a spur gear train 43. The sprocket 42 is operated in the vertical direction by the rotation of the rotating member 30. .

Each sprocket 42 is disposed at a position corresponding to each component supply tape 12 set in the feeder main body 13, and the teeth of the sprocket 42 are meshed with the sprocket holes of each component supply tape 12, and the component supply tape is rotated by the rotation of the sprocket 42. 12 is pitch-fed toward the component suction position.

Each sprocket 42 has a plurality of sprocket teeth formed at equal angular intervals on the circumference, but a pitch error is generated between each sprocket tooth due to a processing error or the like. Due to the pitch error, when supplying a component smaller than a predetermined size, particularly a very small component, it is difficult to accurately position the component at the component suction position, which causes a suction error.

For this purpose, the pitch error from the original position of the sprocket 42 is measured in advance and stored in a memory to be described later, and the sprocket 42 is controlled to rotate according to the pitch error. As shown in FIG. 4, an origin detection mark 87a is provided on the side surface of the sprocket 42 so that the rotation of the sprocket 42 can be controlled according to the pitch error, and this origin detection mark 87a is used as the origin detection sensor 87 (see FIG. 7). ), The sprocket 42 is positioned at the original position, and the sprocket 42 is rotated from the original position according to the pitch error stored in the memory. The origin detection sensor 87 and origin detection mark 87a constitute origin detection means for detecting the origin position of the sprocket 42.

As shown in FIG. 1, the upper cover plate 39 covering the upper part of the sprocket drive unit 41 in the feeder main body 13 has component suction positions for sucking the components of the component supply tape 12 by the suction nozzle of the component mounting machine.

Opening parts

40a and 40b for part suction are formed in a staggered pattern. In the present embodiment, since a total of six component supply tapes 12 can be mounted on the feeder main body 13, a total of six

component suction openings

40a and 40b are formed.

Next, a description will be given of the configuration of an operating mechanism that operates each rotating member 30 of each sprocket drive unit 41 independently.

As shown in FIG. 3, each rotating member 30 is assembled to the feeder main body 13 so that the sprocket 42 can move up and down with the support shaft 51 as a fulcrum, and the teeth of the sprocket 42 mesh with the sprocket holes of the component supply tape 12. The sprocket 42 is configured to move up and down between the meshing position to be in a state and the retracted position where the teeth of the sprocket 42 are located below the sprocket hole.

Each sprocket drive unit 41 is provided with a spring 55 as a biasing means for biasing the sprocket 42 supported by the rotating member 30 upward with the support shaft 51 as a fulcrum. Thus, the sprocket 42 can be held at the meshing position which is the upper limit position. Each sprocket drive unit 41 is provided with a sprocket operating motor 56 that lowers the sprocket 42 against the spring 55.

Cams 57 are respectively fixed to the rotation shafts of the motors 56. Correspondingly, each rotary member 30 is provided with a cam contact member 58 such as an L-shape that contacts the cam 57 from below. When the motor 56 is rotated to rotate the cam 57 to the lowest position, the cam contact member 58 is pulled down against the spring 55 integrally with the rotating member 30, and the sprocket 42 is at the lower limit position. Hold in the retracted position. Thereafter, when the motor 56 is rotated to the original position and the cam 57 is returned to the uppermost position, the rotating member 30 is pushed up by the urging force of the spring 55 following the movement of the cam 57, and the meshing position which is the upper limit position. Retained.

Position detection dogs 61 that detect the positions of the cams 57 are provided on the rotation shafts of the motors 56, and correspondingly, the feeder body 13 has cam position sensors 62 that detect the position detection dogs 61. Each cam position sensor 62 can detect whether the sprocket 42 is in the meshing position or the retracted position.

As shown in FIG. 5, the feeder main body 13 is provided with a meshing detection sensor 63 that detects that each sprocket 42 has moved up to the meshing position. Each rotation member 30 is provided with a position detection dog 64 for detecting the meshing position, and the teeth of the sprocket 42 supported by any of the rotation members 30 mesh with the sprocket holes of the component supply tape 12. When 42 is raised to the meshing position, the position detection dog 64 is detected by the meshing detection sensor 63 and a detection signal is output. The mesh detection sensor 63 and the position detection dog 64 constitute mesh detection means for detecting that the sprocket 42 has been operated to the mesh position.

As shown in FIG. 3, a connector 67 for connecting a signal line and a power line of the feeder body 13 to a connector 68 (see FIG. 6) of the feeder mounting table 66 of the component mounting machine is provided on the front end surface of the feeder body 13. Two positioning pins 69, 70 are provided, and the two

positioning pins

69, 70 are inserted into the positioning holes 71, 72 (see FIG. 6) of the feeder mounting table 66 of the component mounting machine, so that the feeder mounting table 66 is provided. The attachment position of the feeder body 13 is positioned above, and the connector 67 of the feeder body 13 is inserted and connected to the connector 68 of the feeder mounting table 66.

A guide groove 74 having an inverted T-shaped cross section for supporting the tape feeder 11 in a vertical position is provided on the upper surface of the feeder mounting table 66, and a guide rail having an inverted T-shaped cross section provided on the lower surface side of the feeder body 13. (Not shown) is inserted into the guide groove 74 from the front side, so that the tape feeder 11 is supported in a vertically placed state on the feeder mounting table 66 and a clamp member (not shown) provided on the feeder main body 13. ) Fits into the clamp groove 79 of the feeder mounting table 66 and presses the feeder main body 13 forward (to the connector 68 side of the feeder mounting table 66) to clamp the feeder main body 13 on the feeder mounting table 66. Positioned in the front-rear direction and detachably attached.

As shown in FIG. 2, a handle portion 76 is provided at the upper rear portion of the cover tape collecting case 24 of each tape supplier 21, and an unillustrated shape formed on the feeder main body 13 at the front end portion of each handle portion 76. Positioning pins 77 that engage with the positioning holes are provided. When the tape supplier 21 is set in the feeder main body 13, the tape supplier 21 is positioned with respect to the feeder main body 13 by inserting the positioning pin 77 of the handle portion 76 into a positioning hole (not shown).

An identification ID 81 (see FIG. 7) is stored on the upper surface of the handle portion 76. The identification ID 81 stores the identification information of the components stored in the component supply tape 12 supported by the tape supplier 21. The identification ID 81 is read by a reader 82 (see FIG. 7) provided on the lower surface of the operation panel 15 of the feeder main body 13 to acquire component identification information and the like.

The signal of the identification ID 81 output from the reader 82 is also used as a set confirmation signal of the tape supplier 21 to the feeder main body 13. By reading the identification ID 81 by the reader 82, the tape supplier 21 is set to the feeder main body 13. It comes to confirm.

Further, as shown in FIG. 7, the tape feeder 11 is provided with a control unit 84 for controlling the operation of the

motors

44, 56, etc., and the identification ID 81 read by the reader 82 is transmitted to the control unit 84, and the control unit 84 84 to the control unit 85 of the component mounting machine via

connectors

67 and 68. The memory 86 of the control unit 84 of the tape feeder 11 stores an error table in which pitch errors from the original positions of the respective sprockets 42 are registered, and various pieces of information stored on the component supply tape 12. As to whether the component size stored in the component supply tape 12 is smaller or larger than a predetermined size.

When the tape supplier 21 supporting the component supply tape 12 is set in the feeder body 13, the component size is identified based on the component information stored in the memory 86, and the sprocket 42 is rotated accordingly. To be controlled.

The control unit 84 of the tape feeder 11 executes a feeder control program (sprocket rotation control program) shown in FIG. 8 when setting the tape supplier 21 to the feeder body 13. As a result, the sprocket 42 is automatically lowered to the retracted position, the component supply tape 12 is set above the sprocket 42, and then the sprocket operating motor 56 is controlled to raise the sprocket 42 to the meshing position.

In this case, if the sprocket 42 teeth do not mesh with the sprocket holes of the component supply tape 12 even if the control for raising the sprocket 42 to the meshing position is performed and the detection signal is not output from the meshing detection sensor 63, the sprocket rotation motor 44, the sprocket 42 is rotated forward and backward, and the sprocket 42 is rotated until the teeth of the sprocket 42 are engaged with the sprocket holes of the component supply tape 12 and a detection signal is output from the engagement detection sensor 63.

Hereinafter, the processing content of the feeder control program executed by the control unit 84 of the feeder body 13 will be described with reference to FIG. The feeder control program shown in FIG. 8 is repeatedly executed for each sprocket drive unit 41 (each tape supplier 21) during the power-on period of the control unit 84 of the feeder body 13.

When this program is started, it is first determined in step 100 whether or not a tape supplier mounting work start signal has been input (whether the operator has operated the mounting work start key on the operation panel 15). If the tape supplier mounting work start signal is not input, the process waits until the tape supplier mounting work start signal is input.

When the tape supplier mounting work start signal is input, the determination result in step 100 is YES, and the process proceeds to step 102. In step 102, the sprocket operating motor 56 of the sprocket drive unit 41 is operated, the rotating member 30 is rotated against the spring 55, and the sprocket 42 is lowered to the retracted position.

In step 104, the reader 82 of the feeder main body 13 reads the identification ID of the tape supplier 21, and then, in step 106, the component supply tape 12 mounted on the tape supplier 21 is transferred to the predetermined ID based on the read identification ID. It is determined whether the component supply tape 12 stores components smaller than the size or the component supply tape 12 stores components larger than a predetermined size.

If it is determined that the component supply tape 12 contains a component smaller than the predetermined size, the process proceeds to step 108, where it is determined that the component supply tape 12 stores a component larger than the predetermined size. If yes, go to Step 110.

In step 108, the sprocket rotating motor 44 is driven to position the sprocket 42 at the origin position, and the sprocket 42 is rotated until the origin detection sensor 87 detects the origin detection mark 87a. As a result, the sprocket 42 is positioned at the origin position where the specific teeth of the sprocket 42 are located at the upper end position.

That is, in the case of a component smaller than a predetermined size, for example, a very small component, the rotation of the sprocket 42 is controlled according to the pitch error of the teeth of the sprocket 42 in order to accurately position the component at the component suction position. Is required. For this reason, before the sprocket 42 is engaged with the sprocket hole of the component supply tape 12, the sprocket 42 is indexed to the origin position, so that the rotation of the sprocket 42 is controlled according to the pitch error. It becomes possible to position accurately.

Next, in step 112, the sprocket operating motor 56 is operated to rotate the rotating member 30 counterclockwise in FIG. 3 by the urging force of the spring 55, and the sprocket 42 has sprocket teeth of the component supply tape 12. Raise to the meshing position to mesh with the sprocket hole. When a detection signal is output from the engagement detection sensor 63, it is determined that the teeth of the sprocket 42 are engaged with the sprocket holes of the component supply tape 12.

In this case, if the sprocket 42 rises and the teeth of the sprocket 42 do not mesh well with the sprocket holes of the component supply tape 12 and come into contact with the component supply tape 12, the sprocket 42 cannot rise to the meshing position. The detection sensor 63 is also not operated. In such a case, for example, by rotating the sprocket 42 forward and backward by the sprocket rotating motor 44, the teeth of the sprocket 42 can be engaged with the sprocket holes of the component supply tape 12, and the sprocket 42 is raised to the engagement position. Is done.

Next, in step 114, the sprocket 42 is rotationally controlled by the motor 44 in accordance with the pitch error stored in the memory 86, and the components stored in the component supply tape 12 are sequentially supplied to the component suction position. Thereby, even a very small component can be accurately supplied to the component suction position.

On the other hand, when the process proceeds to step 110 described above, in step 110, the sprocket operating motor 56 is operated, and the rotating member 30 is rotated counterclockwise in FIG. 42 is moved up to a meshing position where the sprocket teeth mesh with the sprocket holes of the component supply tape 12. When the sprocket 42 is raised to the meshing position, this is detected by the meshing detection sensor 63.

Next, in step 116, the sprocket 42 is controlled to rotate at a pitch angle (constant angle) of the sprocket teeth, and a component (a component larger than a predetermined size) stored in the component supply tape 12 is supplied to the component suction position.

Next, at step 118, whether or not the sprocket 42 has been indexed to the origin is determined based on the signal from the origin detection sensor 87. If the determination result is NO, the process returns to step 116 described above, and the sprocket 42 Continue constant angle rotation control. In step 118, when the origin of the sprocket 42 is detected, the process proceeds to step 114, and thereafter, the rotation of the sprocket 42 is controlled according to the pitch error.

That is, for a part larger than a predetermined size, it is not necessary to accurately position the part at the part suction position as in the case of a very small part, so that the parts supply tape 12 can be immediately used without indexing the sprocket 42 to the origin position. The sprocket 42 is engaged with the sprocket hole. In this case, since the rotation of the sprocket 42 cannot be controlled according to the pitch error of the sprocket teeth, the rotation of the sprocket 42 is inevitably controlled by a certain angle, and after the origin of the sprocket 42 is detected, the memory 86 The sprocket 42 is controlled to rotate according to the stored pitch error.

As a result, for parts larger than a predetermined size that do not need to be accurately positioned at the part suction position, the sprocket 42 is engaged with the sprocket hole of the part supply tape 12 without indexing the sprocket 42 to the origin position. be able to.

The above-mentioned step 106 to step 114 constitute the control unit in the claims.

Thus, according to the above-described embodiment, when the tape supplier 21 is set in the feeder main body 13, the size of the component stored in the component supply tape 12 supported by the tape supplier 21 is larger than the predetermined size. Depending on whether it is small or large, the sprocket 42 is positioned at the origin and then the sprocket 42 is operated to the meshing position, or the sprocket 42 is first operated to the meshing position, or the tape feeder is selectively controlled. 11, when the component supply tape 12 containing components smaller than a predetermined size is set, the sprocket 42 can be rotationally controlled in accordance with the pitch error of the sprocket teeth, so the components smaller than the predetermined size Can be accurately supplied to the component suction position. Accordingly, it is possible to reliably suppress occurrence of a component suction error when a small-sized component is sucked by the suction nozzle due to the positioning error due to the pitch error of the sprocket teeth.

On the other hand, when the component supply tape 12 containing a component larger than a predetermined size is set in the tape feeder 11, the sprocket 42 is controlled to rotate by a certain angle without performing the origin detection operation of the sprocket 42. The time can be shortened by the operation time for detecting the origin of the sprocket 42. In this case, the rotation control of the sprocket 42 by a fixed angle is a temporary measure until the origin of the sprocket 42 is detected, and since it is a large part, positioning due to the pitch error of the sprocket teeth. The effect on the error is negligible, and a component suction error hardly occurs when the component is sucked by the suction nozzle.

Further, according to the above-described embodiment, the plurality of tape suppliers 21 provided with the sprocket 42 and the operation mechanism are detachably attached to the feeder main body 13, the identification ID 81 is provided for each tape supplier 21, and the identification ID 81 is assigned to the feeder. Since the reader 82 provided on the main body 13 is configured to read, even when a plurality of tape suppliers 21 are mounted on the feeder main body 13, the identification ID 81 provided on each tape supplier 21 is read, so that the components of each tape supplier 21 are The type (size) of the parts stored in the supply tape 12 can be identified, and the control unit (steps 106 to 114) can be accurately controlled based on this.

Furthermore, according to the above-described embodiment, when the sprocket 42 is moved to the meshing position by the operating mechanism, the teeth of the sprocket 42 are engaged with the sprocket holes of the component supply tape 12, and the sprocket 42 is operated to the meshing position. Since there is a mesh detection means comprising a mesh detection sensor 63 and a position detection dog 64 for detecting that the sprocket 42 is not meshed well with the sprocket hole of the component supply tape 12, a detection signal is received from the mesh detection means. If it cannot be obtained, the sprocket 42 and the sprocket hole of the component supply tape 12 can be reliably engaged with each other by rotating the sprocket 42 forward and backward.

In the above-described embodiment, an example in which a plurality of tape suppliers 21 can be detachably attached to the feeder main body 13 has been described. As long as the supply tape 12 and the teeth of the sprocket 42 are meshed with each other, the present invention can also be applied to the tape feeder 11 in which one tape supplier 21 can be detachably attached to the feeder main body 13. It is not limited to.

In addition, according to the above-described embodiment, the operating mechanism rotates the rotatable rotating member 30 so that the sprocket 42 meshes with the sprocket hole of the component supply tape 12 and the component supply. Although it is configured to rotate between the retracted position located below the sprocket hole of the tape 12, the operation mechanism described in the embodiment is merely an exemplary configuration, and the configuration It is not limited to.

Thus, the present invention is not limited to the configurations described in the above-described embodiments, and can take various forms without departing from the gist of the present invention described in the claims. .

The feeder control device according to the present invention is suitable for use in controlling the rotation of the sprocket that meshes with the sprocket hole of the component supply tape according to the pitch error and sending the component stored in the component supply tape to the component suction position. ing.

DESCRIPTION OF SYMBOLS 11 ... Tape feeder, 12 ... Parts supply tape, 13 ... Feeder main body, 21 ... Tape supplier, 30 ... Turning member, 41 ... Sprocket drive unit, 42 ... Sprocket, 44 ... Motor for sprocket rotation, 51 ... Support shaft, 56 ... sprocket operation motor, 63, 64 ... mesh detection means (mesh detection sensor, position detection dog), 66 ... feeder mounting table, 81 ... identification ID, 82 ... reader, 86 ... memory, 87, 87a ... origin detection means ( Origin detection sensor, origin detection mark), steps 106 to 114... Control unit.

Claims

A tape feeder is provided that meshes sprocket teeth with sprocket holes formed in a component supply tape that stores a large number of components at a predetermined pitch, and sends the components stored in the component supply tape to the component suction position by rotation of the sprocket.
An operating mechanism for operating the sprocket between a meshing position where the teeth mesh with a sprocket hole of the component supply tape and a retracted position where the teeth are located below the sprocket hole of the component supply tape;
Pitch error storage means for storing a pitch error of the teeth from the origin position of the sprocket;
Rotation control means for controlling the rotation of the sprocket according to the pitch error;
Origin detecting means for detecting the origin position of the sprocket;
When the component supply tape containing components smaller than a predetermined size is set in the tape feeder, the sprocket is operated until the origin is detected by the origin detection means before operating the sprocket to the meshing position. , And the sprocket is operated from the retracted position to the meshing position when the component supply tape containing a component larger than a predetermined size is set in the tape feeder. A control unit that rotates the sprocket by a predetermined angle regardless of the pitch error and sends the component to the component suction position until the component is detected;
A feeder control device comprising:
The tape feeder is provided with an identification ID, and on the basis of the identification ID, the component feeder tape containing a component smaller than a predetermined size is set in the tape feeder, or a component larger than a predetermined size is stored. The feeder control device according to claim 1, wherein it is possible to determine whether the component supply tape is set.
The tape supplier provided with the sprocket and the operating mechanism is detachably attached to the feeder main body, the identification ID is provided to the tape supplier, and the identification ID is read by a reader provided on the feeder main body. The feeder control apparatus as described.
When the component supply tape containing a component larger than a predetermined size is set in the tape feeder, the sprocket is rotated by a predetermined angle regardless of the pitch error until the origin of the sprocket is detected. 4. The feeder according to claim 1, further comprising: a rotation control unit that controls the rotation of the sprocket according to the pitch error after the origin is detected. Control device.
When the sprocket is operated to the meshing position by the operation mechanism, the mesh detection is performed to detect that the sprocket teeth are engaged with the sprocket holes of the component supply tape and the sprocket is operated to the meshing position. The feeder control device according to any one of claims 1 to 4, further comprising means.