JP6427762B2 - Tape feeder - Google Patents

Description

  The present invention relates to a tape feeder that supplies a component mounted on a component mounting apparatus and held on a carrier tape to a component removal position by a component mounting mechanism.

  A tape feeder is known as a component supply device in a component mounting apparatus. The tape feeder intermittently feeds the carrier tape containing the components along the tape path by the tape feeding device, thereby supplying the components to the component pick-up position by the mounting head constituting the component mounting mechanism. When the carrier tape is set in such a tape feeder, a setting operation is required in which the carrier tape is inserted from the entrance of the tape passage provided at the rear end of the tape feeder to reach the tape feeder. The carrier tape is set by an operator.

  In recent years, a tape feeder in which one side of a tape path is opened has been used in order to improve workability of carrier tape setting work. By opening one side of the tape path, the operator can easily set the carrier tape on the tape path from the open side, but on the other hand, there is a new problem that the carrier tape is easily dropped from the tape path. To occur. In order to solve such a problem, a tape feeder including a drop-off preventing member for preventing the carrier tape from dropping has been proposed (for example, Patent Document 1). The drop-off preventing member shown in Patent Document 1 is formed in an “inverted L shape” and is provided on one side of the tape passage. A part of the drop-off prevention member protrudes above the carrier tape fed on the tape path. Thereby, even if the carrier tape moves in the width direction or upward, it comes into contact with the drop-off preventing member and is prevented from dropping from the tape passage.

JP 2014-41858 A

  However, in the tape feeder opened on one side of the tape passage disclosed in Patent Document 1, the carrier tape is dropped from the open side when a carrier tape with strong curl is set, even if it has a drop prevention member. The carrier tape could not be reliably prevented from falling off.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a tape feeder that facilitates a carrier tape setting operation and can reliably prevent the carrier tape from falling off.

The tape feeder of the present invention is a tape feeder that supplies a component to a component removal position by intermittently feeding a carrier tape containing components at regular intervals in the longitudinal direction by the rotation of a sprocket , and one side is opened. The carrier tape provided on the upstream side of the sprocket on the tape passage and through which the carrier tape intermittently fed along the tape passage can pass, and the carrier tape from the tape passage A drop-out preventing member in the form of a tunnel that prevents the carrier tape from falling off is provided, and a slit into which the carrier tape can be inserted is provided above the drop-out preventing member so as to extend in the entire feeding direction of the carrier tape.

  According to the present invention, the carrier tape can be easily set and the carrier tape can be reliably prevented from falling off.

The top view of the component mounting apparatus in one embodiment of this invention The side view of the component mounting apparatus in one embodiment of this invention (A) (b) Structure explanatory drawing of the carrier tape in one embodiment of the present invention The perspective view of the tape feeder in one embodiment of this invention (A) (b) Structure explanatory drawing of the tape feeder in one embodiment of this invention (A) (b) Structure explanatory drawing of the tape feeder of the component mounting apparatus in one embodiment of this invention The fragmentary perspective view of the tape feeder in one embodiment of this invention (A) Front view of the drop-off prevention member provided in the tape feeder in one embodiment of the present invention (b) Plan view of the drop-off prevention member provided in the tape feeder in one embodiment of the present invention (c) One embodiment of the present invention The perspective view of the drop-off prevention member with which the tape feeder in the form of is provided (A) (b) Structure explanatory drawing of the fall-off prevention member with which the tape feeder in one embodiment of this invention is provided (A) (b) (c) Explanatory drawing of the setting operation | work of the carrier tape in one embodiment of this invention Explanatory drawing of the setting operation | work of the carrier tape in one embodiment of this invention

  First, a component mounting apparatus 1 according to an embodiment of the present invention will be described with reference to FIGS. The component mounting apparatus 1 has a function of mounting the component 3 (FIG. 3) on the substrate 2. Hereinafter, the conveyance direction of the substrate 2 is defined as the X direction, and the direction orthogonal to the X direction in the horizontal plane is defined as the Y direction. A substrate transport mechanism 5 having a pair of transport conveyors extending in the X direction is provided on the upper surface of the base 4. The substrate transport mechanism 5 transports the substrate 2 and positions it at a predetermined mounting work position (the position of the substrate 2 shown in FIG. 1).

  Component supply units 6 are provided at positions on both sides of the substrate transport mechanism 5 in the Y direction. The component supply unit 6 is provided with a plurality of tape feeders 7 arranged in parallel in the X direction. The tape feeder 7 intermittently feeds the carrier tape 8 containing the components 3 at regular intervals in the longitudinal direction, and supplies the components 3 to a component take-out position by a suction nozzle 11 described later.

  A Y-axis moving beam 9Y is provided at an end of the base 4 in the X direction, and two X-axis moving beams 9X are provided on the Y-axis moving beam 9Y so as to be movable in the Y direction. A mounting head 10 is mounted on each X-axis moving beam 9X so as to be movable in the X direction. The Y-axis moving beam 9Y and the X-axis moving beam 9X move the mounting head 10 in the X direction and the Y direction. The mounting head 10 includes a plurality of suction nozzles 11 that can suck the component 3. The suction nozzle 11 sucks and takes out the component 3 supplied from the tape feeder 7 and then mounts it on the substrate 2. In the above configuration, the Y-axis moving beam 9Y, the X-axis moving beam 9X, and the mounting head 10 constitute a component mounting mechanism for mounting the component 3 on the substrate 2.

  In FIG. 1, the mounting head 10 includes a first recognition camera 12 whose imaging field of view is directed downward. The first recognition camera 12 images the substrate 2 and the like positioned at the mounting work position. Further, in the base 4, a second recognition camera 13 is provided between the board transport mechanism 5 and the component supply unit 6 with the imaging field of view facing upward. The second recognition camera 13 images the part 3 held by the mounting head 10 moving above from below. The imaging data of the board 2 and the component 3 is recognized and processed by the control unit provided in the component mounting apparatus 1. Thereby, the control unit detects the substrate 2 and the component 3. The detection results of the substrate 2 and the component 3 are used when the mounting head 10 is aligned with the substrate 2 when the component 3 is mounted.

  Next, the structure of the tape feeder 7 will be described with reference to FIGS. In FIG. 2, the tape feeder 7 is detachably attached to a feeder base 14 provided in the component supply unit 6. The carrier tape 8 intermittently fed by the tape feeder 7 is stored in a state of being wound around the supply reel 15. The supply reel 15 is rotatably held by a reel holding member (not shown) provided on the carriage 16.

  3A and 3B, a carrier tape 8 includes a base tape 17 in which concave pockets 17a are formed at regular intervals in the longitudinal direction, and a top tape 18 that seals the upper surface of the base tape 17. It is comprised including. For example, a part 3 having a size of 0402, 0603, or the like is stored in the pocket 17a. Further, holes 17b are formed at a constant pitch on one side of the base tape 17.

  4 and FIG. 5A, the tape feeder 7 has a feeder main body 19 constituting the overall shape of the tape feeder 7 and a convex shape downward from the lower surface on the upstream side (left side of the paper) of the feeder main body 19. The feeder mounting unit 20 is provided. The feeder mounting portion 20 includes a connector portion. When the tape feeder 7 is mounted with the lower surface of the feeder main body portion 19 along the feeder base 14, the connector portion is fitted to the feeder base 14. Accordingly, the tape feeder 7 is fixed to the component supply unit 6 and is electrically connected to the control unit of the component mounting apparatus 1.

  The feeder main body 19 is provided with a tape passage 21 that is a passage of the carrier tape 8. An opening 21a that is an entrance of the tape passage 21 is formed at the upstream end of the feeder main body 19, and the tape passage 21 is located downstream of the opening 21a beyond the position where the component is taken out by the mounting head 10. It communicates to the vicinity of the end. As shown in FIG. 5A, the tape passage 21 has a first section A, a second section B, a third section C, and a fourth section D in order from the upstream side.

  The first section A is a section that guides the carrier tape 8 in a horizontal posture from the upstream side with the opening 21a toward the downstream side to a predetermined position. The cross section of the tape passage 21 corresponding to the first section A is substantially U-shaped with one side opened inside the feeder main body 19. FIG. 5B is a cross-sectional view of the feeder main body 19 in the range indicated by the symbol E in FIG.

  The second section B is a section that guides the carrier tape 8 to a predetermined position with an upward gradient from the end portion of the first section A toward the downstream side. Similar to the first section A, the tape passage 21 corresponding to the second section B includes a substantially U-shaped portion opened on one side inside the feeder main body 19.

  The third section C is a section that guides the carrier tape 8 in a horizontal posture from the end portion of the second section B to the front side of the component removal position. The tape passage 21 corresponding to the third section C is open on both sides and above except for a position where a drop prevention member 30 described later is provided. That is, in the tape passage 21 corresponding to the third section C, the carrier tape 8 is intermittently fed with both sides and the upper side exposed. Thus, at least one side of the tape passage 21 corresponding to the first section, the second section B, and the third section C is open.

  The fourth section D is a section that guides the carrier tape 8 from the terminal end of the third section C to the downstream end further beyond the component removal position, that is, the terminal end of the tape passage 21. A pressing member 22 is provided on the upper surface of the feeder main body 19 corresponding to the fourth section. The holding member 22 has a function of holding the carrier tape 8 intermittently fed through the tape passage 21 corresponding to the fourth section D from above, and rotates around the shaft member 23 provided at the downstream end. It is free to move. When the pressing member 22 is lifted around the shaft member 23, a gap exceeding the thickness of the carrier tape 8 is formed between the feeder main body 19 and the pressing member 22 in the vicinity of the front end portion of the fourth section D. By forming the gap in this way, the carrier tape 8 can be easily set on the tape passage 21 corresponding to the fourth section. When the pressing member 22 is not lifted, the tape passage 21 corresponding to the fourth section D is in a state where both sides and the upper side are covered by the pressing member 22.

  5A and 6A, a sprocket 24 is provided at a position corresponding to the downstream side of the feeder main body 19 and below the pressing member 22. The sprocket 24 is rotationally driven by a drive motor 25, and the drive motor 25 is controlled by a feeder controller provided in the tape feeder 7. On the outer periphery of the sprocket 24, a plurality of feed pins 24a are provided at a constant pitch. As shown in FIG. 6B, the carrier tape 8 moves along the tape path 21 by intermittently rotating the sprocket 24 with the feed pin 24a engaged with the hole 17b of the base tape 17 (arrow a). And is intermittently fed downstream (arrow b).

  The position upstream of the sprocket 24 is a component take-out position [P] that picks up and picks up the component 3 housed in the pocket 17a by the suction nozzle 11. 5A and 6A, the pressing member 22 is provided with a suction opening 26 corresponding to the component removal position [P]. The upstream end of the suction opening 26 is a top tape peeling portion 26 a for peeling the top tape 18. Further, as shown in FIG. 6A, an opening 27 for releasing the feed pin 24a is provided at a position corresponding to the upper side of the sprocket 24 in the pressing member 22.

  In FIG. 5A, a top tape feeding mechanism 28 and a tension detection mechanism 29 are provided on the upstream side of the suction opening 26 and at a substantially central position of the feeder main body 19. The top tape feeding mechanism 28 pulls the top tape 18 peeled off from the base tape 17 via the top tape peeling portion 26a to the upstream side in the process in which the carrier tape 8 is intermittently fed below the pressing member 22, and the feeder main body The top tape 18 is sent to a tape recovery unit (not shown) provided inside the upstream portion of the unit 19. The tension detection mechanism 29 detects the tension of the top tape 18 in the process in which the top tape 18 is fed to the tape collecting unit by the top tape feeding mechanism 28. As a result of the detection by the tension detecting mechanism 29, when the tension of the top tape 18 becomes a predetermined value or less (in other words, when the top tape 18 is loosened), the top tape feeding mechanism 28 pulls the top tape 18 to pull the tape collecting unit. Send to. The top tape feeding mechanism 28 and the tension detecting mechanism 29 serve as a top tape collecting means for collecting the top tape 18 peeled off from the base tape 17 to the tape collecting unit. In this manner, the top tape 18 is collected by the top tape collecting means in the process of intermittently feeding the carrier tape 8, so that the parts 3 in the pocket 17a are exposed and the parts are picked up by the mounting head 10 (parts mounting mechanism). [P] is supplied.

  As shown in FIG. 5A, on the tape passage 21 corresponding to the third section C, a drop-off prevention member 30 is provided at a position upstream of the component removal position [P]. As shown in FIG. 7, the drop-off preventing member 30 has a tunnel shape, and is manufactured using, for example, a synthetic resin as a main material.

  Next, the structure of the drop-off preventing member 30 will be described in detail with reference to FIG. The drop-off prevention member 30 includes a flat bottom plate 31 that is in contact with the upper surface of the tape passage 21, and a first vertically erected along the longitudinal direction of the tape passage 21 from positions corresponding to both sides of the tape passage 21. The side plate 32, the second side plate 33, the first extending portion 34, the second extending horizontally from the upper ends of the first side plate 32 and the second side plate 33 toward the inside of the tape passage 21, respectively. The extending portion 35 is included. A space surrounded by the bottom plate 31, the first side plate 32, the second side plate 33, the first extension portion 34, and the second extension portion 35 constitutes an opening 36 through which the carrier tape 8 can pass. . The carrier tape 8 passes through the opening 36 and is intermittently fed downstream (FIG. 7). At this time, even if the carrier tape 8 moves in the width direction (left and right direction in the drawing), the carrier tape 8 comes into contact with the first side plate 32 or the second side plate 33 and is prevented from falling off the tape passage 21.

  In FIG. 8 (a), the first extending portion 34 and the second extending portion 35 have side surfaces 34a and 35a parallel to the intermittent feeding direction of the carrier tape 8, respectively. It arrange | positions in the state which 35a opposes. A gap S having a predetermined length is provided between the side surfaces 34a and 35a. As shown in FIG. 9A, the gap S is set to be smaller than the length dimension L1 of the carrier tape 8 in the width direction and larger than the length dimension L2 of the carrier tape 8 in the thickness direction. Since the length L2 in the thickness direction of the carrier tape 8 is smaller than the gap S, the carrier tape 8 can pass through the gap S with the thickness direction facing upward as shown in FIG. 9B. (Arrow c). In other words, the carrier tape 8 can be inserted into and removed from the inside (opening 36) of the drop-off prevention member 30 through the gap S. The region where the gap S is provided in the drop-off prevention member 30 constitutes a slit 37 (a linear opening extending elongated) extending in the longitudinal direction of the carrier tape 8.

  As a result, even if the carrier tape 8 moves upward while being intermittently fed inside the drop-off prevention member 30, the carrier tape 8 is in contact with the first extension portion 34 and the second extension portion 35. Movement to the outside of the dropout prevention member 30 is restricted. Therefore, even when the carrier tape 8 with strong curl is set, the drop prevention member 30 can reliably prevent the carrier tape 8 from falling off.

  Further, by providing the slit 37 above the drop-off prevention member 30, the following setting operation of the carrier tape 8 can be realized. That is, the operator engages the hole 17 b of the base tape 17 with the feed pin 24 a of the sprocket 24 with the pressing member 22 lifted, and then releases the hand from the pressing member 22. As a result, the vicinity of the top of the carrier tape 8 is fixed to the feeder main body 19. In this state, the operator inserts the carrier tape 8 into the drop-off preventing member 30 through the slit 37, and sequentially places the carrier tape 8 along the tape path 21 corresponding to each section (A, B, C). . As described above, the carrier tape 8 can be easily set by placing the other portions along the tape path 21 while the vicinity of the leading portion of the carrier tape 8 is fixed first.

  As described above, the drop-off prevention member 30 is provided on the tape passage 21, has the opening 36 through which the carrier tape 8 intermittently fed along the tape passage 21 can pass, and the carrier from the tape passage 21. It has a function of preventing the tape 8 from falling off. Further, a slit 37 into which the carrier tape 8 can be inserted is provided above the drop-off prevention member 30 so as to extend in the feeding direction of the carrier tape 8. Furthermore, the width of the slit 37 (the length in the X direction orthogonal to the intermittent feeding direction of the carrier tape 8) is narrower than the width of the carrier tape 8.

  The component mounting apparatus 1 in the present embodiment is configured as described above. Next, the setting operation of the carrier tape 8 will be described. First, the operator pulls out the carrier tape 8 from the supply reel 15. Next, as shown in FIG. 10A, the operator engages the hole 17 b of the carrier tape 8 (base tape 17) with the feed pin 24 a of the sprocket 24 with the pressing member 22 lifted, and then the pressing member 22. Release your hand. As a result, the base tape 17 is pressed from above by the pressing member 23 (FIG. 10B), and the setting operation in the vicinity of the leading portion of the carrier tape 8 is completed.

  Next, the operator places the carrier tape 8 along the tape path 21. That is, as shown in FIG. 10 (b), for the tape passage 21 corresponding to the third section C, the operator twists the carrier tape 8 with the fingertip to the “standing posture”, and in this state, the slit 37 is interposed. Then, the carrier tape 8 is inserted into the dropout prevention member 30 (arrow d). Then, as shown in FIG. 10C, the operator returns the carrier tape 8 to a horizontal posture and moves the carrier tape 8 along the tape path 21. Further, for the tape passage 21 corresponding to the first section A and the second section B, the operator inserts the carrier tape 8 from the open side of the tape passage 21. Thereby, the setting operation of the carrier tape 8 is completed.

  In the above-described setting operation, for example, when the operator sets the wrong carrier tape 8, the carrier tape 8 can be released by the following procedure. That is, the operator lifts the holding member 22 and removes the base tape 17 from the sprocket 24. Next, as shown in FIG. 11, the operator bends the carrier tape 8 with a fingertip, and puts the carrier tape 8 in the range corresponding to the opening 36 of the drop-off prevention member 30 into the “standing posture”. In this state, the operator lifts the carrier tape 8 upward (arrow e), and pulls out the carrier tape 8 from the dropout prevention member 30 through the slit 37. Next, the operator slides the carrier tape 8 set on the tape passage 21 corresponding to the first section A and the second section B to the open side and removes it.

  Thus, by providing the slit 37 above the drop-off preventing member 30, the setting operation of the carrier tape 8 can be facilitated. More specifically, in the case where the drop prevention member 30 does not have the slit 37, the operator inserts the carrier tape 8 into the drop prevention member 30 along the intermittent feed direction, and then the feed pin of the sprocket 24. It is necessary to engage the hole 17b of the base tape 17 with 24a. Therefore, if the operator wants to reset the carrier tape 8 for any reason, the operator should remove the base tape 17 from the sprocket 24 and then pull the carrier tape 8 upstream to remove the carrier tape 8 from the drop-off prevention member 30. Don't be. Then, the operator needs to perform the troublesome work of reinserting the carrier tape 8 into the dropout prevention member 30 and engaging the hole 17b of the base tape 17 with the feed pin 24a of the sprocket 24. The case where it is necessary to cancel the setting of the carrier tape 8 includes, for example, a case where the wrong carrier tape 8 is set, or a case where the order of setting the carrier tape 8 is wrong.

  On the other hand, by providing the slit 37 above the drop-off prevention member 30, the operator can easily insert and remove the carrier tape 8 through the slit 37, whereby the carrier tape 8 can be moved along the tape path 21. Work burden is reduced. Further, the carrier tape 8 can be removed from the tape passage 21 while the engagement between the feed pin 24a of the sprocket 24 and the hole 17b of the base tape 17 is maintained, and the setting operation of the carrier tape 8 with respect to the tape passage 21 can be performed again. Thus, according to the tape feeder 7 in the present embodiment, the carrier tape 8 can be easily set and the carrier tape 8 can be set freely.

  As shown in FIG. 9A, the height H of the opening 36 is preferably set longer than the length dimension L1 of the carrier tape 8 in the width direction. Accordingly, the carrier tape 8 can be smoothly inserted into and removed from the drop-off preventing member 30 by preventing the carrier tape 8 from being bent when the carrier tape 8 is set to the “standing posture”.

  The tape feeder of the present invention is not limited to this embodiment, and can be changed without departing from the spirit of the invention. For example, the dropout prevention member 30 may have a configuration in which the bottom plate 31 is omitted, or may be formed in a cylindrical shape.

  According to the tape feeder of the present invention, the carrier tape can be easily set and the carrier tape can be reliably prevented from falling off.

3 parts 7 tape feeder 8 carrier tape 21 tape path 30 drop-off prevention member 36 opening 37 slit [P] parts take-out position

Claims (3)

A tape feeder that supplies parts to a parts removal position by intermittently feeding a carrier tape containing parts at regular intervals in the longitudinal direction by rotation of a sprocket ,
A tape passage with one side open,
Provided on the upstream side of the sprocket on the tape path and having an opening through which the carrier tape intermittently fed along the tape path can pass, and prevents the carrier tape from falling off the tape path. It has a tunnel-shaped drop-off prevention member,
A tape feeder, wherein a slit into which the carrier tape can be inserted is provided above the drop-off preventing member so as to extend in the entire feeding direction of the carrier tape.   The tape feeder according to claim 1, wherein a width of the slit is narrower than a width of the carrier tape. A holding member for pressing the carrier tape from above;
The tape feeder according to claim 1 or 2, wherein the drop-off prevention member is provided upstream of the pressing member.

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