JP2017139367A - Tape feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape feeder that is capable of preventing a situation that a component electrostatically attached to a cover tape jumps out from a slit at the time of preliminary peeling, and performing a stable component feeding operation.SOLUTION: A suction position side magnet 51 and a slit side magnet 52 are provided below a tape lower-side receiving member 50 for receiving the lower surface of a carrier tape 18 to be pressed from the upper side by a tape pressing member 33. The suction position side magnet 51 attracts a component 3 positioned at a component supply position 16K to the side of the tape lower-side receiving member 50 by magnetic force. The slit side magnet 52 is provided independently of the suction position side magnet 51, and attracts the component 3 located below the slit 33S to the side of the tape lower-side receiving member 50 with larger magnetic force than the attraction position side magnet 51.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a tape feeder that feeds a component to a component supply position by running a carrier tape holding the component.

  Conventionally, a tape feeder is known as one of typical component supply apparatuses in a component mounting apparatus. The component mounting device is a device that picks up a component by a suction nozzle and mounts it on a substrate, and the tape feeder is a suction position of the component by the suction nozzle by running a carrier tape holding the component by a tape running mechanism. Position the part at the part supply position. The carrier tape in the vicinity of the component supply position is pressed from above by the tape pressing member, and the component is sucked and taken out by the suction nozzle from the component supply opening provided in the tape pressing member. The cover tape of the carrier tape is peeled off and pulled out from the component supply opening. Parts may jump out of the carrier tape due to the influence of static electricity generated when the cover tape is peeled off or due to an impact when the carrier tape is transported. For this reason, a magnet member is provided below the carrier tape that travels at the component supply position, and the component is attracted downward by the magnetic force of the magnet member (for example, Patent Document 1 below). In this case, the magnetic force of the magnet member is set to such an extent that the suction of the component by the suction nozzle is not hindered.

  Also, in recent years, the size of parts has become even smaller, and when the cover tape is pulled out from the parts supply opening, the parts adhere to the cover tape due to the influence of static electricity, and the parts fall out of the carrier tape. There is. For this reason, a slit is provided at a position upstream of the component supply opening in the traveling direction of the carrier tape, and by performing “pre-peeling” by pulling out the cover tape from the slit, the parts attached to the cover tape due to the influence of static electricity are removed. There are known ones that do not fall off the carrier tape.

JP 2014-107410 A

  However, even when pre-peeling as described above, if the size of the component is extremely small, the component attached to the cover tape due to static electricity may jump out of the slit and be bitten by the slit. There was a risk of it occurring.

  Therefore, an object of the present invention is to provide a tape feeder that can prevent a situation in which parts adhering to the cover tape due to static electricity jump out of the slit at the time of pre-peeling, and can realize a stable part supply operation. To do.

  The tape feeder according to the present invention is used by being attached to a component mounting apparatus that sucks a component by a suction nozzle and mounts the component on a substrate, and supplies the component to a component supply position that is a suction position of the component by the suction nozzle. And a tape running mechanism for running the carrier tape holding the parts to position the parts at the parts supply position, and pressing the carrier tape in a region near the parts supply position from above, and the parts supply position. The suction nozzle is provided above the component tape, and is provided on the upstream side of the component tape supply direction with respect to the component supply opening and separated from the carrier tape. A tape pressing member having a slit from which the cover tape is pulled out, and the tape pressing member A tape lower receiving member for receiving the lower surface of the carrier tape pressed from above by the member; and the component in the carrier tape provided below the tape lower receiving member and positioned at the component supply position. A first magnet member that is attracted to the receiving member side by magnetic force, and the first magnet member is provided below the tape lower receiving member independently of the first magnet member, and has a larger magnetic force than the first magnet, and the slit And a second magnet member that draws the component in the carrier tape located below the tape receiving member side.

  According to the present invention, it is possible to prevent a situation in which parts attached to the cover tape due to static electricity jump out of the slit at the time of preliminary peeling, and a stable part supply operation can be realized.

The side view of the component mounting apparatus provided with the tape feeder in one embodiment of this invention The perspective view of the tape feeder in one embodiment of this invention The perspective view which shows the carrier tape driven with the tape feeder in one embodiment of this invention with a part of tape feeder The side view of the tape feeder in one embodiment of this invention The perspective view of a part of tape feeder in one embodiment of the present invention The partial side view of the tape feeder in one embodiment of this invention (A) (b) The perspective view of a part of tape feeder in one embodiment of the present invention The graph which shows the magnetic force which the components in the carrier tape drive | worked with the tape feeder in one embodiment of this invention receive from an adsorption position side magnet and a slit side magnet

  Embodiments of the present invention will be described below with reference to the drawings. A component mounting apparatus 1 shown in FIG. 1 is a device that mounts a component 3 on a substrate 2, and includes a substrate transport unit 12 and a component mounting unit 13 on a base 11. A feeder base 15 moved by a carriage 14 is connected to the base 11 and a tape feeder 16 is attached to the feeder base 15 (FIG. 2).

  In FIG. 1, the board | substrate conveyance part 12 is provided with a pair of conveyor 12a arrange | positioned in the Y-axis direction (front-back direction seen from the operator OP), and the board | substrate 2 is X-axis direction (left-right direction seen from the operator OP). ). The component mounting unit 13 includes a mounting head 13b having a suction nozzle 13a and a head moving mechanism 13c that moves the mounting head 13b in the horizontal plane direction. The mounting head 13b can move the suction nozzle 13a in the Z-axis direction (vertical direction) and can rotate around the Z-axis.

  A plurality of tape feeders 16 are attached to the feeder base 15 side by side in the X-axis direction. As shown in FIG. 1, each tape feeder 16 is provided with a carrier tape 18 drawn from a reel 17 held by a carriage 14 (see also FIG. 2), and each tape feeder 16 has a carrier tape 18 attached thereto. By feeding the pitch, the component 3 held on the carrier tape 18 is intermittently supplied to a component supply position 16K that is a suction position of the component 3 by the suction nozzle 13a.

  As shown in FIG. 3, the carrier tape 18 has a configuration in which a transparent cover tape 22 is attached to the upper surface of the base tape 21. The base tape 21 is provided with a plurality of component storage portions 23 arranged in a line, and the component 3 is stored in each component storage portion 23. The cover tape 22 covers each component storage portion 23 from above, and prevents the component 3 from falling off the component storage portion 23. Feed holes 24 are provided in a row at positions parallel to the rows of the component storage portions 23 of the base tape 21.

  As shown in FIGS. 2 and 4, the tape feeder 16 is provided with a tape running mechanism 32, a tape pressing member 33, and a cover tape collecting mechanism 34 in a main body 31 that is detachably attached to the feeder base 15. The main body 31 is formed with a tape running surface 35 on which the carrier tape 18 runs. In the present embodiment, the tape running surface 35 extends horizontally forward from a tape inlet 31G (FIGS. 2 and 4) formed in the lower rear end of the main body 31 and then is at an intermediate portion of the main body 31. It extends obliquely toward the front upper side, and extends forward of the main body 31 while being exposed on the upper surface of the main body 31.

  2 and 4, the tape traveling mechanism 32 includes a sprocket 41 provided at a position in front of the main body 31 and a drive motor 42 that intermittently drives the sprocket 41 to rotate about the X axis. The sprocket 41 is rotated by engaging the outer peripheral teeth 41T (FIG. 3) with the feed holes 24 of the carrier tape 18, thereby pitch-feeding the carrier tape 18 on the tape running surface 35 (shown in FIGS. 2 and 4). Arrow A). As a result, the carrier tape 18 intermittently positions the component storage portion 23 (that is, the component 3) at the component supply position 16K.

  2 and 4, the tape pressing member 33 is provided to extend in the front-rear direction at a position on the front upper side of the main body 31. The tape pressing member 33 covers a region in the vicinity of the portion of the carrier tape 18 that travels on the tape traveling surface 35 that is engaged with the outer peripheral teeth 41T of the sprocket 41 (that is, the region in the vicinity of the component supply position 16K). The carrier tape 18 is pressed from above. As shown in FIG. 5, in the tape pressing member 33, the component supply opening 33T provided so as to open the upper part of the component storage part 23 located at the component supply position 16K and the peeled cover tape 22 are pulled out. A groove 33M for avoiding interference between the slit 33S and the outer peripheral teeth 41T of the sprocket 41 is provided. The slit 33S is located behind the component supply opening 33T.

  Here, the cover tape 22 is partly removed from the base tape 21 by the operator OP in advance and pulled out rearward and upward from the slit 33S (FIGS. 2 and 5). Is guided to a cover tape recovery mechanism 34 provided at a position above the intermediate portion. The cover tape collecting mechanism 34 intermittently pulls the cover tape 22 (arrow B shown in FIGS. 2, 4, and 5) as the tape running mechanism 32 pitches the carrier tape 18, and the main body 31. It accommodates in the cover tape accommodating part 36 formed in the rear part of the inside. For this reason, the cover tape 22 is peeled from the base tape 21 with the slit 33S as the peeling position, and when the component storage portion 23 reaches the component supply position 16K, the component storage portion 23 is in an exposed state that is not covered by the cover tape 22. . As a result, the mounting head 13b can suck the component 3 located at the component supply position 16K by the suction nozzle 13a.

  In FIG. 6, a tape lower receiving member 50 is provided on a portion of the upper surface of the main body 31 that is covered with the tape pressing member 33. The tape lower receiving member 50 receives the lower surface of the carrier tape 18 pressed from above by the tape pressing member 33.

  6 and 7 (a) and 7 (b), the tape receiving member 50 includes a horizontal portion 50a extending horizontally, a rear inclined portion 50b extending obliquely downward and rearward from a rear end portion of the horizontal portion 50a, and a horizontal portion. The front inclined portion 50c extends obliquely downward and forward from the front end portion of 50a. The upper surface of the horizontal portion 50a constitutes a part of the tape running surface 35.

  6 and 7A and 7B, an attracting position side magnet 51 (first magnet member) and a slit side magnet 52 (second magnet member) are provided below the tape receiving member 50. It has been. The upper surface of the rear portion of the attracting position side magnet 51 is a horizontal surface 51a, and the upper surface of the front portion is from the upstream side to the downstream side in the traveling direction (Y-axis direction) of the carrier tape 18 (from the left side of the drawing in FIG. 6). The inclined surface 51b is inclined (toward the right). The upper surface of the slit-side magnet 52 is a horizontal plane, and the height thereof is the same as the upper surface of the rear portion of the attracting position-side magnet 51.

  In FIG. 6, the attracting position side magnet 51 is located below the component supply position 16K. The slit-side magnet 52 is located behind the attraction position-side magnet 51 (upstream in the traveling direction of the carrier tape 18) and below the slit 33S. The attracting position side magnet 51 and the slit side magnet 52 are configured as separate members independent of each other.

  Each component 3 in the carrier tape 18 has an electrode portion (not shown) attracted by a magnet, and the attracting position side magnet 51 moves the component 3 positioned at the component supply position 16K to the tape receiving member 50 side ( That is, it is attracted downward by magnetic force. The slit-side magnet 52 has a larger magnetic force than the attracting position-side magnet 51, and the component 3 positioned below the slit 33 </ b> S has a larger magnetic force than the attracting position-side magnet 51 and is on the tape receiving member 50 side (downward). Attract to.

  In FIG. 6, the boundary between the horizontal portion 50 a of the tape receiving member 50 and the front inclined portion 50 c is located above the inclined surface 51 b of the attracting position side magnet 51, but on the horizontal portion 50 a of the tape receiving member 50. The carrier tape 18 traveling horizontally forward travels in the horizontal direction as it is even after passing through the horizontal portion 50a. For this reason, the distance between the inclined surface 51b of the attracting position side magnet 51 and the lower surface of the carrier tape 18 is gradually increased in the traveling direction of the carrier tape 18 (from the upstream side to the downstream side in the traveling direction of the carrier tape 18). Become bigger. That is, in the present embodiment, the portion of the upper surface of the attracting position side magnet 51 that is vertically opposed to the region before and after the carrier tape 18 passes through the component supply position 16K (that is, the inclined surface 51b) is the traveling of the carrier tape 18. The distance from the lower surface of the carrier tape 18 gradually increases from the upstream side to the downstream side in the direction.

  FIG. 8 shows the magnetic force received by the component 3 in the carrier tape 18 from the attracting position side magnet 51 and the slit side magnet 52 in accordance with the position facing the position of the upper surface of the attracting position side magnet 51 and the slit side magnet 52. It is a graph. As shown in this graph, the upper surface of the slit-side magnet 52 exerts a constant magnetic force G1 on the component 3 in the region R1 located immediately above the slit-side magnet 52. A constant magnetic force G2 is applied to the component 3 in the region R2 located immediately above. Further, as described above, the inclined surface 51b of the attracting position side magnet 51 is configured such that the distance from the lower surface of the carrier tape 18 gradually increases from the upstream side in the traveling direction of the carrier tape 18 toward the downstream side. Of the upper surface of the attracting position side magnet 51, the inclined surface 51b exerts a magnetic force that gradually decreases in the traveling direction of the carrier tape 18 on the component 3 in the region R3 located immediately above it.

  Here, the magnetic force G2 is limited to a magnetic force that does not prevent the suction of the component 3 by the suction nozzle 13a, but the slit-side magnet 52 is provided independently of the suction position-side magnet 51. An arbitrary magnetic force larger than the magnetic force G2 can be set. For this reason, the component 3 in the lower region of the slit 33S can be drawn toward the tape receiving member 50 with a magnetic force larger than that of the component 3 in the lower region of the component supply position 16K, and the component 3 passing below the slit 33S. Is held in the component storage portion 23 of the carrier tape 18. Thereby, when the cover tape 22 is peeled in advance from the base tape 21 of the carrier tape 18 by the slit 33S, it is possible to prevent the component 3 from adhering to the cover tape 22 due to static electricity and jumping out of the slit 33S.

  On the other hand, the attracting position side magnet 51 is located below the component supply position 16K, and in order to draw the component 3 passing through the component supply position 16K by magnetic force, the component storage of the base tape 21 after the cover tape 22 is peeled off. It is possible to prevent the part 3 from popping out from the portion 23. Here, as described above, the magnetic force exerted on the component 3 positioned immediately above the inclined surface 51b of the attracting position side magnet 51 gradually decreases from the magnetic force G2 toward the traveling direction of the carrier tape 18, so that the component by the attracting nozzle 13a. 3 is extremely difficult to occur due to the magnetic force received from the attracting position side magnet 51.

  In the component mounting apparatus 1 having the above-described configuration, the control of the operation of the board conveying unit 12, the component mounting unit 13, the tape feeder 16 and the like is performed by the control device C (FIG. 1) provided in the component mounting apparatus 1. The substrate transfer unit 12 controlled by the control device C first loads the substrate 2 sent from the upstream process side and positions it at the work position. Then, the tape feeder 16 operates to supply the component 3 to the component supply position 16K, and the head moving mechanism 13c reciprocates the mounting head 13b between the tape feeder 16 and the substrate 2. The mounting head 13b picks up the component 3 that the tape feeder 16 is positioned at the component supply position 16K by the suction nozzle 13a through the component supply opening 33T, and mounts the picked-up component 3 on the substrate 2. When the mounting head 13b mounts all the components 3 to be mounted on the substrate 2 to the substrate 2, the substrate transport unit 12 carries the substrate 2 to the downstream process side.

  In the process of mounting the component 3 on the substrate 2, each tape feeder 16 supplies the component 3 to the component supply position 16 </ b> K that is the suction position of the component 3 by the suction nozzle 13 a included in the component mounting apparatus 1. Adsorption of the component 3 from the component supply position 16K is not hindered by the side magnet 51 and the slit-side magnet 52, and the component 3 attached to the cover tape 22 due to static electricity does not jump out of the slit 33S at the time of preliminary peeling.

  As described above, the tape feeder 16 in the present embodiment attracts the component 3 located at the component supply position 16K to the tape receiving member 50 side by the magnetic force by the attracting position side magnet 51 and is positioned below the slit 33S. The part 3 is attracted to the side of the tape receiving member 50 by the slit side magnet 52 by a magnetic force. The slit-side magnet 52 is provided independently of the attracting position-side magnet 51 (consisting of a separate member), and can exert a larger magnetic force than the attracting position-side magnet 51. Therefore, at the component supply position 16K. In the position of the slit 33S, the component 3 jumps out of the carrier tape 18 due to static electricity accompanying the peeling of the cover tape 22 while exerting a magnetic force that does not prevent the component 3 from being sucked by the suction nozzle 13a. It is possible to exert a magnetic force to the extent that can be reliably prevented. For this reason, without disturbing the adsorption of the component 3 from the component supply position 16K, it is possible to prevent the component 3 adhering to the cover tape 22 due to static electricity from jumping out of the slit 33S during the pre-peeling, and a stable component supply operation. Can be realized.

  Provided is a tape feeder capable of preventing a situation in which parts adhering to a cover tape due to static electricity jump out of a slit at the time of pre-peeling and realizing a stable part supply operation.

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 2 Board | substrate 3 Component 13a Adsorption nozzle 16 Tape feeder 16K Component supply position 18 Carrier tape 22 Cover tape 32 Tape running mechanism 33 Tape pressing member 33T Component supply opening 33S Slit 50 Tape lower receiving member 51 Adsorption position side magnet (first magnet) 1 magnet member)
52 Slit-side magnet (second magnet member)

Claims (2)

A tape feeder that is used by being attached to a component mounting apparatus that sucks a component by a suction nozzle and attaches it to a substrate, and supplies the component to a component supply position that is a suction position of the component by the suction nozzle,
A tape running mechanism for running the carrier tape holding the parts and positioning the parts at the parts supply position;
From the component supply opening and the component supply opening, which are provided above the component supply position by pressing the carrier tape in a region near the component supply position and the suction nozzle picks up and extracts the component from the carrier tape. A tape pressing member having a slit provided on the upstream side in the running direction of the carrier tape and from which the cover tape peeled off from the carrier tape is drawn,
A tape receiving member for receiving the lower surface of the carrier tape pressed from above by the tape pressing member;
A first magnet member provided below the tape lower receiving member and attracting the component in the carrier tape located at the component supply position to the tape lower receiving member side by a magnetic force;
The component in the carrier tape that is provided below the tape lower receiving member independently of the first magnet member and is located below the slit with a magnetic force larger than that of the first magnet is the tape. A tape feeder comprising: a second magnet member that is drawn toward the lower receiving member.   Of the upper surface of the first magnet member, a portion corresponding to the upper and lower regions and the front and rear of the carrier tape passing through the component supply position is the carrier from the upstream side to the downstream side in the traveling direction of the carrier tape. The tape feeder according to claim 1, wherein the distance from the lower surface of the tape gradually increases.

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