JP2017191891A - Tape feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure that permits a rotation to a reverse direction of a gear pulling a cover tape obtained by being peeled out from an upper surface of a component supply tape.SOLUTION: One direction clutch 92 permits rotation only to a positive direction as a retractable direction of a cover tape, and is provided between a lower side cover tape retractable gear 28 of two cover tape retractable gears 28 and 29 in which the cover tape obtained by peeling from an upper surface of a component supply tape 12 and an axis 91 of the retractable gear. A reverse rotation of the cover tape retractable gears 28 and 29 is prevented by one direction clutch 92. In a fitting part of one direction clutch 92 and the cover tape retractable gear 28, a friction force of the fitting part of one direction clutch 92 and the cover tape retractable gear 28 is adjusted so as to be slipped and rotated the cover tape retractable gear 28 to an inverse direction when a rotation force of the inverse direction larger than a predetermined force to be required for peeling the cover tape to the cover tape retractable gear 28.SELECTED DRAWING: Figure 11

Description

The present invention relates to a tape feeder provided with a cover tape drawing device that pulls a cover tape (also called a top tape) from the upper surface of a component supply tape and draws the cover tape in a direction opposite to the tape feeding direction.

The tape feeder described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2013-98383) is a tape feeder that feeds a component supply tape drawn from a tape reel to a component suction position, and a component suction in accordance with a feeding operation of the component supply tape. A cover tape pulling device that pulls the cover tape from the upper surface of the component supply tape before the position and pulls the cover tape in the direction opposite to the tape feed direction, and sucks the component in the component supply tape at the component suction position It is adsorbed with and mounted on a circuit board. The cover tape retracting device sandwiches the cover tape peeled off from the upper surface of the component supply tape between two meshing gears, and rotates the gear by a gear driving device so that the cover tape is pulled into the cover tape collecting case. It is configured to be collected.

Moreover, the tape feeder described in patent document 2 (Unexamined-Japanese-Patent No. 6-1523) is made to wind up the cover tape peeled off from the upper surface of the component supply tape with a take-up reel.

The tape feeder always needs to have the same amount of parts supply tape feed and cover tape peel off, but the gear or take-up reel rotates backward due to the tension of the cover tape while the tape feed operation is stopped. If the cover tape returns, the amount of the cover tape peeled off during the subsequent tape feeding operation will be insufficient by the amount of the return, causing a component suction error.

In general, the tape feeder prevents the cover tape that has been peeled back from coming back by the self-holding force of the motor, but a motor with sufficient self-holding force cannot be used for reasons such as a reduction ratio or downsizing. If the self-holding force is lost due to the power-off of the motor or the like, it is not possible to prevent the cover tape that has been peeled off from returning.

Therefore, in Patent Document 2, a one-way clutch that allows only rotation in the forward direction, which is the winding direction of the cover tape, is provided between the take-up reel and its shaft, and further, the parts are supplied to the tape feeder. In order to enable reverse rotation (rewinding) of the take-up reel when an operator feeds extra tape and winds up extra cover tape when setting the tape, etc. , Provided with a release device for switching between a state in which the reverse rotation prevention function is activated and a state in which the reverse rotation prevention function is deactivated and freely reversely rotated, and the operator reversely rotates the take-up reel to rewind the cover tape. In this case, the release device is operated to release the reverse rotation prevention function of the one-way clutch.

Patent Document 1: JP 2013-98383 A
Patent Document 2: JP-A-6-1523

However, the configuration of Patent Document 2 has a drawback that the one-way clutch is provided with a release device that switches the operation / non-operation of the reverse rotation prevention function, so that the configuration is complicated and the cost is increased. Moreover, since it is necessary for the operator to switch the operation / non-operation of the reverse rotation prevention function of the one-way clutch by operating the release device, the operation is troublesome and the one-way clutch reversely rotates due to forgetting to operate it. The blocking function may not work and the cover tape may not be wound. As a result, the cover tape cannot be peeled off from the upper surface of the component supply tape during feeding operation of the component supply tape. There is a possibility that a malfunction such as a suction error occurs.

In order to solve the above-described problems, the present invention provides a tape feeder having a cover tape drawing device for drawing a cover tape peeled off from the upper surface of a component supply tape. Two gears that sandwich the cover tape peeled off from the upper surface of the tape, a gear drive that rotationally drives the two gears that sandwich the cover tape, and at least one of the two gears and its shaft; And a one-way clutch that allows only rotation in the forward direction, which is a pull-in direction of the cover tape, and a fitting portion between the one-way clutch and the gear is a cover tape with respect to the gear. When a reverse rotation force greater than a predetermined value greater than the force required for peeling off is applied, the gear slips in the reverse direction. That it is configured in which the features.

In this configuration, when a reverse rotational force greater than a predetermined force greater than the force required for peeling the cover tape is applied to the gear sandwiching the cover tape, the gear slips in the reverse direction. Therefore, the configuration allowing the rotation of the gear in the reverse direction (reverse return of the cover tape) is simple, and the demand for cost reduction can be satisfied. In addition, since it is not necessary to provide a release device for switching the operation / non-operation of the reverse rotation prevention function of the one-way clutch, there is no need for the operator to perform an operation to switch the operation / non-operation of the reverse rotation prevention function of the one-way clutch. By simply pulling the cover tape in the reverse direction, the cover tape can be reversed by rotating the gear in the reverse direction, and the reverse rotation prevention function of the one-way clutch is ensured when feeding the component supply tape. The cover tape can be reliably peeled off from the upper surface of the component supply tape, and the occurrence of component adsorption mistakes can be prevented.

By the way, in the configuration in which the gear slips in the reverse direction when a reverse torque more than a predetermined value is applied to the gear fitted to the one-way clutch as in the present invention, the outer diameter dimension of the one-way clutch is If the manufacturing variation in the inner diameter of the gear is large, the variation in the frictional force of the fitting portion between the one-way clutch and the gear becomes large, and the variation in the reverse rotational force necessary to reversely rotate the gear increases. End up.

As a countermeasure, it is preferable to form a split groove in a gear with a one-way clutch so that the inner diameter of the gear can be elastically deformed. By forming a split groove in the gear, the inner diameter dimension of the gear can be elastically deformed according to the variation in the outer diameter dimension of the one-way clutch, resulting in manufacturing variations in the outer diameter dimension of the one-way clutch and the inner diameter dimension of the gear. Can be absorbed by the change in the gap dimension of the split groove, the variation in the reverse rotational force required to reversely rotate the gear can be reduced, and the management of dimensional accuracy during manufacturing can be eased.

By the way, depending on the position of the split groove formed in the gear, there is a possibility that the tooth of the counterpart gear easily interferes with the split groove and the smooth rotation of the gear is hindered.

Therefore, it is preferable to eliminate one of the teeth of the gear with the one-way clutch and form a split groove in the center of the portion without the teeth. In this way, the distance between the gear teeth of the mating gear and the split groove can be widened, and the gear teeth of the mating gear can be prevented from interfering with the split groove. Can be prevented.

In this case, among the teeth of the gear with the one-way clutch, the two teeth adjacent to the split groove change the tooth pitch due to the change in the gap dimension of the split groove, which may cause a gear meshing failure.

Therefore, the two teeth adjacent to the split groove are preferably formed in a tooth shape having a lower tooth depth and a smaller front tooth thickness than the other teeth. In this way, it is possible to prevent the occurrence of poor meshing between the two teeth adjacent to the split groove and the teeth of the mating gear.

The present invention can be applied to various types of tape feeders. For example, the present invention is also applicable to a tape feeder configured to detachably set a tape supplier that guides a component supply tape drawn from a tape reel to a component suction position. it can. In this case, the two gears that sandwich the cover tape are provided in the tape supplier, and the gear driving device is provided in the feeder body. In the tape feeder having such a configuration, when the tape supplier is removed from the feeder body, the connection between the tape supplier side gear and the feeder body side gear driving device is disconnected, and the feeder body side gear driving device self- Although the holding force does not act on the gear on the tape supplier side, the reverse rotation of the gear on the tape supplier side is prevented by the one-way clutch, so that the reverse return of the cover tape is prevented.

FIG. 1 is a perspective view of the entire tape feeder in one embodiment of the present invention. FIG. 2 is a perspective view (No. 1) of the feeder body. FIG. 3 is a perspective view (part 2) of the feeder body. FIG. 4 is a perspective view of the tape supplier. FIG. 5 is a perspective view (No. 1) showing the gear driving device and its peripheral portion. FIG. 6 is a perspective view (No. 2) showing the gear driving device and its peripheral portion. FIG. 7 is a perspective view of a feeder set base of the component mounting machine. FIG. 8 is a perspective view showing the configuration of the lower surface side of the operation panel of the feeder body. FIG. 9 is an enlarged perspective view of the handle portion of the tape supplier and its peripheral portion. FIG. 10 is a side view of the cover tape retractor. FIG. 11 is a side view showing a state where the two gears of the cover tape retracting device are engaged with each other. FIG. 12 is an enlarged side view showing a split groove of a gear with a one-way clutch and tooth shapes on both sides thereof.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described with reference to the drawings. First, the configuration of the tape feeder 11 will be described.

The tape feeder 11 is a conventional general tape feeder having a lateral width of the feeder body 13 (a tape feeder capable of setting only one component supply tape) so that a plurality of component supply tapes 12 can be set side by side in the horizontal width direction. It is formed to be approximately a plurality of times the horizontal width. In this embodiment, by reducing the interval between the adjacent component supply tapes 12, the width of the feeder main body 13 is, for example, approximately four times (approximately M times) the width of a conventional general tape feeder, and six ( N parts, where N is an integer greater than M) can be set side by side in the width direction. Although not shown in detail, the component supply tape 12 stores components in component storage recesses formed in a line at a predetermined pitch on the carrier tape and affixes a cover tape (also referred to as a top tape) on the upper surface of the carrier tape. Tape feed holes (not shown) are formed in a line at a predetermined pitch along the side edge of the component supply tape 12.

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 for inputting various operation signals such as a tape supplier mounting work start signal for each sprocket drive unit 41 (each tape supplier 21) to be described later.

The component supply tape 12 drawn from each tape reel 16 is guided to the component suction position by the tape supplier 21. The width of each tape supplier 21 is formed to be slightly 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.

The feeder body 13 is provided with a plurality of slots for mounting a plurality of tape suppliers 21, and is configured to detachably mount one tape supplier 21 in each slot.

As shown in FIG. 4, a reel hooking portion 22 for holding the tape reel 16 on the tape supplier 21 removed from the feeder main 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. Yes. The cover tape peeling device 23 includes a peeling roller 25, a tension roller 26, and a pair of cover tape pulling gears 28 and 29, and the cover tape peeled off from the upper surface of the component supply tape 12 before the component suction position. Is stretched between the peeling roller 25 and the tension roller 26, and is sandwiched between the cover tape drawing gears 28 and 29 and fed into the cover tape collecting case 24.

A gear driving device 31 for driving the cover tape pull-in gears 28 and 29 is provided above the mounting space of the tape supplier 21 in the feeder main body 13, and when the tape supplier 21 is attached to the feeder main body 13, The tape pull-in gear 28 meshes with the drive gear 34 (see FIGS. 5 and 10) of the gear drive device 31 on the feeder body 13 side, so that both cover tape pull-in gears 28 and 29 are driven to rotate.

The gear driving device 31 includes a motor 33 serving as a drive source for rotationally driving the bevel gear 32 (see FIG. 6), and a speed reduction mechanism 35 that reduces the rotation of the motor 33 at a predetermined reduction ratio and transmits the reduced speed to the bevel gear 32. And a drive gear 34 that is rotationally driven by the bevel gear 32. The drive gear 34 meshes with the upper cover tape retracting gear 29 so that both cover tape retracting gears 28 and 29 are rotationally driven. ing. The same number of motors 33, bevel gears 32, and drive gears 34 as the number of tape suppliers 21 that can be mounted on the feeder main body 13 are provided, and the tape tape stripping amount (feed) is independently supplied to each tape supplier 21. The amount) can be controlled.

As shown in FIG. 4, 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 zigzag pattern on the other side, and the tape holding portions 37 and 38 are supplied to the parts so as to hold the parts supply tape 12 while meandering the parts supply tape 12 slightly in the width direction (or obliquely tilting). The component supply tape 12 can be held with a smaller width by being arranged little by little inward in the width direction of the tape 12.

The same number of sprocket drive units 41 (tape feeders) 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 front end portion of the feeder main body 13. The sprocket 42 (see FIG. 3) is rotationally driven to pitch-feed the component supply tape 12.

Each sprocket drive unit 41 includes a sprocket drive mechanism 45 for driving the sprocket 42, an engagement position where the teeth of the sprocket 42 are engaged with the tape feed holes of the component supply tape 12, and the teeth of the sprocket 42 are the component supply tape 12. The sprocket drive mechanism 45 is urged upward by a spring (not shown) to hold the sprocket 42 in the meshing position. In addition, a motor 56 is provided for lowering the sprocket drive mechanism 45 against the spring when the tape supplier 21 is attached to and detached from the tape feeder 11.

In this configuration, when the tape supplier 21 is attached to or detached from the tape feeder 11, the sprocket drive mechanism unit vertical movement motor 56 is operated to lower the sprocket drive mechanism unit 45 to the retracted position against the spring 55. In this case, since the teeth of the sprocket 42 are positioned below the tape feed hole of the component supply tape 12, the tape feeder 21 can be attached to and detached from the tape feeder 11, and the tape supplier 21 is attached to the tape feeder 11. After the setting, if the sprocket drive mechanism portion vertical movement motor 56 is rotated to its original position (or the drive force of the motor 56 is released), the sprocket drive mechanism portion 45 is raised to the meshing position by the spring, and the sprocket 42 Teeth automatically mesh with the tape feed holes of the component supply tape 12 It is possible. Thereby, the operation | work which attaches / detaches the tape supplier 21 to the tape feeder 11 can be simplified.

The upper surface cover plate 39 covering the upper part of the sprocket drive unit 41 in the feeder body 13 is opened with a component suction position for sucking components in the component supply tape 12 by a suction nozzle (not shown) of the component mounting machine. The component suction openings 40a and 40b are formed in a staggered pattern. In the present embodiment, since a total of six component supply tapes 12 can be attached to the feeder main body 13, a total of six component suction openings 40a and 40b are formed.

A connector 67 for connecting a signal line and a power line of the feeder body 13 to a connector 68 (see FIG. 7) of the feeder set base 66 of the component mounting machine, and two positioning pins are provided on the front end surface of the feeder body 13. 69 and 70 are provided, and the two positioning pins 69 and 70 are inserted into the positioning holes 71 and 72 (see FIG. 7) of the feeder set base 66 of the component mounting machine, so that the feeder main body 13 is mounted on the feeder set base 66. The attachment position is positioned, and the connector 67 of the feeder body 13 is inserted and connected to the connector 68 of the feeder set base 66.

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

A handle portion 76 is provided at the rear upper end of the cover tape collecting case 24 of each tape supplier 21, and a positioning pin 77 (see FIG. 9) is provided at the front end portion of each handle portion 76. Correspondingly, a positioning hole 78 (see FIG. 8) is formed in the lower step portion of the operation panel 15 of the feeder main body 13, and when the tape supplier 21 is set in the feeder main body 13, The handle 76 is positioned with respect to the lower surface of the operation panel 15 by inserting the positioning pins 77 into the positioning holes 78 on the lower side of the operation panel 15. In this embodiment, the tape supplier 21 can be mounted on the feeder main body 13 with the tape feeder 11 set on the feeder set base 66 of the component mounting machine.

As shown in FIG. 9, an RF tag 81 (also referred to as an electronic tag, an IC tag, a radio wave tag, or a wireless tag) storing identification information (hereinafter referred to as “supplier ID”) of the tape supplier 21 is provided on the upper surface of the handle portion 76. Is attached. In addition to the supplier ID, the RF tag 81 may store component information of the component supply tape 12 in place of the supplier ID.

Correspondingly, a reader 82 (see FIG. 8) for reading the supplier ID stored in the RF tag 81 is provided on the lower surface of the operation panel 15 of the feeder body 13, and the tape supplier 21 is set in the feeder body 13. Then, when the positioning pin 77 of the handle portion 76 is inserted into the positioning hole 78 on the lower side of the operation panel 15, the RF tag 81 on the upper surface of the handle portion 76 faces the reader 82 on the lower surface of the operation panel 15. Then, the supplier ID stored in the RF tag 81 is read by the reader 82.

The signal of the supplier ID output from the reader 82 is also used as a set confirmation signal for the tape supplier 21 to the feeder main body 13. By reading the supplier ID with the reader 82, the tape supplier 21 is set to the feeder main body 13. Is to check. Note that the reader 82 disposed on the lower surface side of the operation panel 15 only needs to be provided with at least the antenna of the reader 82, and the control circuit unit of the reader 82 is separated from the antenna and disposed in another part. Also good.

On the other hand, the feeder main body 13 is provided with a control device (not shown) for controlling the operation of each of the motors 33, 56, etc., and the supplier ID read by the reader 82 is transmitted to the control device. , 68 to the component mounting machine control device (not shown). The memory (not shown) of the control device of the feeder main body 13 stores identification information of the feeder main body 13 (hereinafter referred to as “feeder main body ID”). The feeder main body ID is also connected to the connector from the control device of the feeder main body 13. 67 and 68 to be transmitted to the control device of the component mounting machine.

Each sprocket drive unit 41 is also provided with an ID storage memory (not shown) in which identification information (hereinafter referred to as “sprocket drive unit ID”) of the sprocket drive unit 41 is stored. The sprocket drive unit ID stored in the ID storage memory of each sprocket drive unit 41 is read and transmitted to the control device of the component mounting machine. Thereby, the control apparatus of a component mounting machine can manage individually the tape supplier 21, the feeder main body 13, and the sprocket drive unit 41 using supplier ID, feeder main body ID, and sprocket drive unit ID.

By the way, in the tape feeder 11 of the present embodiment, when the tape supplier 21 is removed from the feeder main body 13, the cover tape pull-in gear 29 on the tape supplier 21 side and the drive gear 34 of the gear driving device 31 on the feeder main body 13 side. Since the connection is disconnected and the self-holding force of the gear driving device 31 on the feeder body 13 side does not act on the cover tape retracting gear 29 on the tape supplier 21 side, the reverse of the cover tape retracting gears 28 and 29 on the tape supplier 21 side. Some means for preventing rotation (reverse of the cover tape) is required.

Therefore, in this embodiment, as shown in FIG. 11, the cover tape retracting gear 28 on the lower side of the two cover tape retracting gears 28 and 29 and the shaft 91 are arranged in the direction in which the cover tape is retracted. A one-way clutch 92 that allows only rotation in a certain forward direction is provided, and reverse rotation of the cover tape pull-in gears 28 and 29 (reverse return of the cover tape) is prevented by the one-way clutch 92.

Further, in the fitting portion between the one-way clutch 92 and the cover tape pull-in gear 28, a reverse rotational force of a predetermined direction or greater than the force required for peeling the cover tape acts on the cover tape pull-in gear 28. The frictional force of the fitting portion between the one-way clutch 92 and the cover tape retracting gear 28 is adjusted so that the cover tape retracting gear 28 sometimes slips in the reverse direction.

In this way, in the configuration in which the cover tape pull-in gear 28 slips and rotates in the reverse direction when a rotation force in the reverse direction more than a predetermined value is applied to the cover tape pull-in gear 28 fitted to the one-way clutch 92, the one-way clutch If the manufacturing variation of the outer diameter dimension of 92 and the inner diameter dimension of the cover tape pull-in gear 28 is large, the variation in the frictional force of the fitting portion between the one-way clutch 92 and the cover tape pull-in gear 28 becomes large. The variation in the rotational force in the reverse direction necessary to reversely rotate 28 is increased.

As a countermeasure, in this embodiment, one split groove 93 is formed at a predetermined position of the cover tape retracting gear 28 with the one-way clutch 92 so that the inner diameter of the cover tape retracting gear 28 can be elastically deformed. Yes. By forming the split groove 93 in the cover tape pull-in gear 28, the inner diameter dimension of the cover tape pull-in gear 28 can be elastically deformed according to variations in the outer diameter dimension of the one-way clutch 92, Manufacturing variations in the outer diameter dimension and the inner diameter dimension of the cover tape pull-in gear 28 can be absorbed by the change in the gap dimension of the split groove 93, and the reverse rotational force necessary to reversely rotate the cover tape pull-in gear 28 is reduced. Variation can be reduced. As a result, the control of the dimensional accuracy of the one-way clutch 92 and the cover tape pull-in gear 28 can be eased, and even if the dimensional variation is large, the variation in the reverse rotational force necessary to reversely rotate the cover tape pull-in gear 28 is reduced. Can be kept within an allowable range, and stable product quality can be ensured at low cost.

By the way, depending on the position of the split groove 93 formed in the cover tape pull-in gear 28, the teeth of the cover tape pull-in gear 29 on the other side can easily interfere with the split groove 93, and the cover tape pull-in gears 28, 29 rotate smoothly. May be hindered.

Therefore, in this embodiment, one of the teeth of the cover tape pull-in gear 28 with the one-way clutch 92 is eliminated, and a split groove 93 is formed in the center of the portion without the teeth. In this way, the distance between the teeth of the mating cover tape pull-in gear 29 and the split groove 93 can be widened, and the teeth of the mating cover tape pull-in gear 29 can be prevented from interfering with the split groove 93. Thus, it is possible to prevent the smooth rotation of the cover tape pull-in gears 28 and 29 by the split groove 93 from being hindered.

In this case, the tooth pitch of the two teeth adjacent to the split groove 93 among the teeth of the cover tape pull-in gear 28 with the one-way clutch 92 changes due to the change in the gap dimension of the split groove 93. , 29 may occur.

Therefore, in this embodiment, as shown in FIG. 12, two teeth adjacent to the split groove 93 of the cover tape retracting gear 28 with the one-way clutch 92 have a tooth h1 more than the tooth h2 of the other teeth. The front tooth thickness s1 is lower and the tooth shape is smaller than the front tooth thickness s2 of the other teeth. In this way, it is possible to prevent the occurrence of poor meshing between the two teeth adjacent to the split groove 93 of the cover tape retracting gear 28 with the one-way clutch 92 and the teeth of the mating cover tape retracting gear 29.

According to the present embodiment described above, when a reverse rotational force greater than a predetermined force greater than the force required for peeling off the cover tape is applied to the cover tape pull-in gear 28 that sandwiches the cover tape, the cover tape Since the pull-in gear 28 is configured to slip and rotate in the reverse direction, the structure that allows the cover tape pull-in gear 28 to rotate in the reverse direction (reverse return of the cover tape) is simple, and there is a demand for cost reduction. Can be satisfied. In addition, since it is not necessary to provide a release device for switching the operation / non-operation of the reverse rotation prevention function of the one-way clutch 92, the operator needs to perform an operation for switching the operation / non-operation of the reverse rotation prevention function of the one-way clutch 92. The cover tape can be reversed by rotating the gear in the reverse direction by simply pulling the cover tape in the reverse direction, and the one-way clutch 92 is reversely rotated during the feeding operation of the component supply tape 12. The blocking function can be operated reliably, the cover tape can be reliably peeled off from the upper surface of the component supply tape 12, and the occurrence of component adsorption mistakes can be prevented.

In this embodiment, the one-way clutch 92 is provided on the lower cover tape pull-in gear 28 of the two cover tape pull-in gears 28 and 29, but the one-way clutch is provided on the upper cover tape pull-in gear 29. Alternatively, a one-way clutch may be provided on each of the two cover tape pull-in gears 28 and 29.

In addition, the present invention is not limited to the tape feeder 21 configured to detachably set the tape supplier 21 that guides the component supply tape 12 pulled out from the tape reel 16 to the component suction position. Needless to say, various modifications can be made without departing from the gist of the invention, such as application to a tape feeder having a general configuration that is not used.

DESCRIPTION OF SYMBOLS 11 ... Tape feeder, 12 ... Component supply tape, 13 ... Feeder main body, 15 ... Operation panel, 16 ... Tape reel, 17 ... Reel holder, 21 ... Tape supplier, 22 ... Reel hook part, 23 ... Cover tape peeling apparatus, 24 ... cover tape recovery case, 25 ... peeling roller, 28, 29 ... cover tape pull-in gear, 31 ... gear drive device, 33 ... motor, 34 ... drive gear, 35 ... deceleration mechanism, 41 ... sprocket drive unit (tape feeder) ), 42 ... sprocket, 45 ... sprocket drive mechanism, 56 ... motor for vertical movement of the sprocket drive mechanism, 66 ... feeder set base, 67, 68 ... connector, 69, 70 ... positioning pins, 71, 72 ... positioning holes, 74 ... guide groove, 77 ... positioning pin, 78 ... positioning hole, 91 ... shaft, 92 ... one Way clutch, 93 ... split groove

Claims (5)

In a tape feeder equipped with a cover tape drawing device that draws the cover tape peeled off from the upper surface of the component supply tape,
The cover tape retracting device is:
Two gears meshing with each other and sandwiching the cover tape peeled off from the upper surface of the component supply tape;
A gear driving device that rotationally drives two gears sandwiching the cover tape;
A one-way clutch provided between at least one of the two gears and a shaft thereof and allowing only rotation in a positive direction, which is a pull-in direction of the cover tape,
And a fitting portion between the one-way clutch and the gear is configured such that when a reverse rotational force greater than a predetermined value greater than a force required for peeling the cover tape is applied to the gear, A tape feeder configured to perform slip rotation in the reverse direction. The tape feeder according to claim 1, wherein a split groove is formed in the gear fitted to the one-way clutch, and an inner diameter dimension of the gear is configured to be elastically deformable. 3. The tape feeder according to claim 2, wherein one of the gear teeth fitted to the one-way clutch is missing, and the split groove is formed in the center of the portion without the tooth. Of the teeth of the gear fitted to the one-way clutch, two teeth adjacent to the split groove are formed in a tooth shape having a lower tooth depth and a smaller front tooth thickness compared to other teeth. The tape feeder according to claim 3. A tape supplier that guides a component supply tape pulled out from the tape reel to a component suction position is detachably set in the feeder body, the two gears are provided in the tape supplier, and the gear driving device is installed in the feeder body. The tape feeder according to claim 1, wherein the tape feeder is provided.

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