JP2019195078A - Tape feeder - Google Patents

Abstract

To provide a tape feeder that improves deterioration of workability for exchanging reels that have consumed a tape.SOLUTION: A tape feeder 10 includes: a reel holder 13; a feeder body 11; and a movable mechanism 12, provided between the feeder body and the reel holder, that allows the reel holder to move relative to the feeder body. The movable mechanism makes it possible to change a position of the reel holder with respect to the feeder body between an upper position and a lower position and at least change a position between an approach position and a separation position at the lower position.SELECTED DRAWING: Figure 2

Description

  The technology disclosed in this specification relates to a tape feeder that supplies electronic components to a substrate working machine.

  The tape feeder includes a reel holding unit that holds a reel on which a tape that holds an electronic component is wound, and a feeder main body that sends the tape from the reel to the substrate working machine. A plurality of tape feeders are mounted in parallel on the substrate working machine along the substrate transport direction. Usually, the reel holding part is wider than the feeder body. For this reason, the number of tape feeders that can be mounted on the substrate working machine is limited by the width of the reel holder.

  As the types of electronic components to be mounted on the substrate increase, it is desired to mount more tape feeders on the substrate working machine. A tape feeder disclosed in Japanese Patent Application Laid-Open No. 2004-47951 includes a movable mechanism provided between a feeder main body and a reel holding portion. The movable mechanism allows the reel holder to move relative to the feeder body. In this technique, the movable mechanism changes the position of the reel holding unit with respect to the feeder main body so as to avoid contact of the reel holding unit between adjacent tape feeders. As a result, the number of tape feeders that can be mounted on the substrate working machine is limited by the width of the narrow feeder body, not the width of the wide reel holder. Thus, when the tape feeder is provided with a movable mechanism, more tape feeders can be mounted on the substrate working machine.

  In recent years, a tape feeder in which a reel holding unit holds two reels has been proposed, and an example thereof is disclosed in Japanese Patent Laid-Open No. 2014-82454. The feeder body of this type of tape feeder automatically feeds the tape from the other reel to the substrate working machine after the tape from one reel is consumed. This eliminates the need for manual tape splicing, and allows the reels that have consumed the tape to be replaced while production continues, improving the production efficiency of the board work machine. To do.

  If the movable mechanism is applied to a tape feeder provided with a reel holding unit for holding two reels, the substrate working machine can realize mounting of various types of electronic components and high production efficiency. However, in a space where such a tape feeder is mounted, when observed by an operator, some reel holders are blocked by other reel holders, and workability for exchanging reels that have consumed tape deteriorates. . This specification aims at providing the technique which improves such deterioration of workability | operativity.

  One embodiment of a tape feeder disclosed in the present specification is configured to supply an electronic component to a substrate working machine, and includes a reel holder, a feeder body, and a movable mechanism. The reel holding unit holds the first reel on which the first tape holding the electronic component is wound and the second reel on which the second tape holding the electronic component is wound at different positions on the reel holding surface. To do. The feeder main body sends the first tape from the first reel to the substrate working machine, and automatically feeds the second tape from the second reel to the substrate working machine after the first tape is consumed. The movable mechanism is provided between the feeder main body and the reel holding portion, and allows relative movement of the reel holding portion with respect to the feeder main body. The movable mechanism makes it possible to change the position of the reel holding portion with respect to the feeder main body between an upper position and a lower position. The movable mechanism further allows the position of the reel holding portion with respect to the feeder main body to be changed between an approach position and a separation position at least at a lower position.

  The movable mechanism of the above embodiment can change the position of the reel holding unit with respect to the feeder main body between the upper side position and the lower side position so as to avoid contact of the reel holding unit between adjacent tape feeders. As a result, more tape feeders can be mounted on the substrate working machine. Furthermore, the movable mechanism of the above embodiment can change the position of the reel holding unit disposed at the lower position relative to the feeder main body between the approach position and the separation position. Accordingly, when the reel holding portion arranged at the lower position is placed at the separation position, the reel holding portion is exposed from the reel holding portion arranged at the upper position, so that the reel held by the reel holding portion is Can be easily replaced.

It is a figure which shows typically the outline of a structure of an electronic component mounting machine and the electronic component supply machine mounted in it. It is a figure which shows the outline of a structure of a tape feeder typically, and is a figure which shows the state by which the reel holding | maintenance part is arrange | positioned in the upper side position. It is a figure which shows the outline of a structure of a tape feeder typically, and is a figure which shows the state by which the reel holding | maintenance part is arrange | positioned in the lower position. It is a figure which shows a mode that the 2nd holding | maintenance part of a reel holding | maintenance part moves between a normal position and a storage position. It is a figure which shows typically the principal part enlarged view of the rear-end part of a guide arm, and is a figure which shows the state which a pair of roller has not inserted in a pair of groove | channel. It is a figure which shows typically the principal part enlarged view of the rear-end part of a guide arm, and is a figure which shows the state which a pair of roller fitted in a pair of groove | channel. It is a figure which shows typically the outline of a structure of an electronic component mounting machine and the electronic component supply machine mounted in it, and is a figure which shows a mode when the reel holding | maintenance part in a lower position is arrange | positioned in a separation position. It is a figure which shows the outline of a structure of a tape feeder typically, and is a figure which shows the outline of the movable mechanism of a modification typically.

  One embodiment of a tape feeder disclosed in the present specification is configured to supply electronic components to a substrate working machine, and may include a reel holding unit, a feeder body, and a movable mechanism. The reel holding unit holds the first reel on which the first tape holding the electronic component is wound and the second reel on which the second tape holding the electronic component is wound at different positions on the reel holding surface. May be. The electronic component held on the first reel and the electronic component held on the second reel may be of the same type or different types. The reel holding unit may hold three or more reels as necessary. The feeder main body may send the first tape from the first reel to the substrate working machine, and may automatically send the second tape from the second reel to the substrate working machine after the first tape is consumed. . Thus, the tape feeder can automatically perform the splicing work of the tape. The movable mechanism may be provided between the feeder main body and the reel holding portion, and may allow the reel holding portion to move relative to the feeder main body. The movable mechanism may change the position of the reel holding unit with respect to the feeder main body between an upper position and a lower position. The movable mechanism may further change the position of the reel holding portion with respect to the feeder main body between an approach position and a separation position at least at a lower position.

  The movable mechanism may have a guide arm including a guide portion that extends parallel to the reel holding surface. In this case, the reel holding part may be configured to be slidable between the approach position and the separation position along the guide part. According to this aspect, the operator can easily change the position of the reel holding portion with respect to the feeder main body between the approach position and the separation position at least in the lower position.

  The guide arm may be configured to be able to translate between a position when the reel holding unit is arranged at the upper position and a position when the reel holding unit is arranged at the lower position. According to this aspect, the operator can easily change the position of the reel holding portion with respect to the feeder main body between the upper position and the lower position.

  The movable mechanism may have a first attachment / detachment portion and a second attachment / detachment portion to / from which the guide arm is selectively attached / detached. In this case, when the guide arm is attached to the first attaching / detaching portion, the reel holding portion is disposed at the upper position. When the guide arm is attached to the second attaching / detaching portion, the reel holding portion is disposed at the lower position. According to this aspect, the form of the movable mechanism is simplified, and the movable mechanism is resistant to breakage.

  The guide arm may be formed with an opening extending along the sliding direction of the reel holding portion as a guide portion. The opening may be formed with a pair of grooves including a lower groove formed at a lower edge defining the opening and an upper groove formed at an upper edge defining the opening. The reel holding part may have a pair of rollers inserted into the opening of the guide arm. The position of the reel holding portion with respect to the feeder body is fixed when one of the pair of rollers is fitted into the lower groove and the other is fitted into the upper groove. According to this aspect, positioning in the sliding direction of the reel holding part with respect to the feeder main body can be realized with a simple structure.

  The pair of grooves may be formed in each of one end and the other end of the opening of the guide arm. When the pair of rollers are fitted into a pair of grooves formed at one end of the opening, the reel holding portion is disposed at the approach position. When the pair of rollers are fitted into the pair of grooves formed at the other end of the opening, the reel holding portion is disposed at the separation position. According to this aspect, positioning of the approach position and the separation position of the reel holding portion with respect to the feeder main body can be realized with a simple structure.

  The reel holding part may have a first holding part and a second holding part. The first holding unit may be configured to hold the first reel. The second holding portion is disposed on a side farther from the feeder main body than the first holding portion, and is located between a normal position for holding the second reel and a storage position that approaches the feeder main body and does not hold the second reel. It may be configured to be movable. According to this aspect, when the second holding unit does not hold the second reel, the space can be saved by moving the second holding unit to the storage position.

  FIG. 1 shows an electronic component mounting machine 1 used for an electronic component mounting line. In FIG. 1, two electronic component mounting machines 1 are shown, and the exterior plate of one electronic component mounting machine 1 is shown through. The electronic component mounting machine 1 is a device for mounting electronic components on a circuit board, and includes a transport device 2, a mounting head 3, and a moving device 4. The conveyance device 2 is a double conveyor type, and conveys the circuit board along the conveyance direction (arrow direction shown in the drawing). The mounting head 3 is connected to the moving device 4 and has a suction nozzle that sucks electronic components. The moving device 4 moves the mounting head 3 in a plane parallel to the surface of the circuit board to be conveyed. An electronic component supply device 5 is mounted on the electronic component mounting machine 1. The electronic component supply apparatus 5 includes a plurality of tape feeders 10 arranged in parallel along the conveyance direction of the circuit board. Thus, the electronic component mounting machine 1 sucks the electronic component supplied from the tape feeder 10 of the electronic component supply device 5 with the suction nozzle of the mounting head 3, and uses the moving device 4 to circuit the mounting head 3 with the circuit. The electronic component is mounted at a predetermined position on the circuit board.

  FIG. 2 schematically shows a schematic configuration of the tape feeder 10. In the following description, regarding the direction in the tape feeder 10, the left side of the paper (the side on which the electronic component mounting machine 1 is present when mounted on the electronic component mounting machine 1) is the front side, and the right side of the paper is the rear side. The upper side of the paper (when mounted on the electronic component mounting machine 1, the upper side in the vertical direction) is the upper side, the lower side of the paper is the lower side, and the depth direction of the paper is the transport direction of the circuit board.

  As shown in FIG. 2, the tape feeder 10 includes a feeder body 11, a movable mechanism 12, and a reel holding unit 13. The tape feeder 10 is of a type called an auto loading feeder and holds two reels 51 and 52. The first reel 51 is wound with a first tape (hereinafter referred to as a delivery tape) that holds electronic components at a constant pitch interval. The second reel 52 is wound with a second tape (hereinafter referred to as a standby tape) that holds electronic components at a constant pitch interval. The electronic components held on the delivery tape and the electronic components held on the standby tape are the same type. The first reel 51 and the second reel 52 are held at different positions in the reel holding surface orthogonal to the circuit board transport direction. The reel holding surface is also a surface on which the feeder main body 11 exists.

  The feeder main body 11 is configured to be detachable from the frame of the electronic component supply device 5, and includes a first sprocket 21 and a second sprocket 22. The first sprocket 21 and the second sprocket 22 are configured to be rotatable in synchronization. The first sprocket 21 and the second sprocket 22 engage with a feed hole formed in the delivery tape from the first reel 51 and pitch-feed the delivery tape to a component suction position along a tape guide (not shown). . The leading end of the standby tape from the second reel 52 stands by above the second sprocket 22. After the feeder tape is consumed, the feeder main body 11 moves the standby tape waiting above the second sprocket 22 downward, and engages the second sprocket 22 with the feed hole formed in the standby tape. As described above, the feeder main body 11 is configured to automatically send the standby tape to the electronic component mounting machine 1 after the delivery tape is consumed. Thus, the splicing work of the tape that has been performed manually until now can be performed. Can be omitted. As a result, the work efficiency of the operator is improved and the production stop of the splicing work is lost or the production stop due to the work mistake is eliminated, so that the production efficiency of the electronic component mounting machine 1 is improved.

  The movable mechanism 12 is configured to allow relative movement of the reel holding unit 13 with respect to the feeder body 11, and includes a support arm 31, a pair of links 32 and 33, and a guide arm 34. The support arm 31 has an upper end fixed to the rear end of the feeder main body 11, extends parallel to the reel holding surface, and extends downward from the rear end of the feeder main body 11. The lower end portion of the support arm 31 has a connecting portion 31a extending rearward. The first link 32 extends parallel to the reel holding surface, one end is rotatably connected to the connecting portion 31 a of the support arm 31, and the other end is rotatable to the front end portion of the guide arm 34. It is connected to. The second link 33 also extends parallel to the reel holding surface, and one end is rotatably connected to the connecting portion 31 a of the support arm 31, and the other end is rotatable to the front end portion of the guide arm 34. It is connected to. Between the connecting portion 31a of the support arm 31 and the guide arm 34, the first link 32 and the second link 33 have the same length. Thereby, the guide arm 34 is configured to be movable in a plane parallel to the reel holding surface.

  2 and 3 show how the guide arm 34 moves in parallel. The movable mechanism 12 translates the guide arm 34 by using a pair of links 32 and 33, so that the position of the reel holding unit 13 with respect to the feeder body 11 is set to an upper position (see FIG. 2) and a lower position (see FIG. 3)). As shown in FIGS. 2 and 3, the presence range when the reel holding unit 13 and the pair of reels 51 and 52 are in the upper position is that the reel holding unit 13 and the pair of reels 51 and 52 are in the lower position. It does not overlap with the existing range. Therefore, as shown in FIG. 1, when the plurality of tape feeders 10 are mounted on the electronic component mounting machine 1, the reel holding unit 13 disposed at the upper position and the reel holding unit disposed at the lower position. Are alternately set along the transport direction, the contact of the reel holding part 13 between the adjacent tape feeders 10 can be avoided. Since the reel holding unit 13 is configured to be wider than the feeder body 11, the number of tape feeders 10 that can be mounted on the electronic component mounting machine 1 can be increased by avoiding contact with the reel holding unit 13. The width of the feeder main body 11 is not limited to 13 but is limited. As a result, a larger number of tape feeders 10 can be mounted on the electronic component mounting machine 1, so that the electronic component mounting machine 1 can mount many types of electronic components on the circuit board.

  As shown in FIG. 2, the reel holding unit 13 includes a first holding unit 41 and a second holding unit 42. The first holding unit 41 is disposed closer to the feeder body 11 than the second holding unit 42. The first holding portion 41 has an engagement pin 41 a, and the engagement pin 41 a engages with the rotation shaft hole of the first reel 51 to hold the first reel 51 rotatably. The second holding part 42 is disposed on the side farther from the feeder body 11 than the first holding part 41, and is configured by a rectangular plate member. The front end of the second holding part 42 is connected to the first holding member 41 so as to be rotatable. The second holding portion 42 also has an engagement pin 42a at the rear end portion, and the engagement pin 42a engages with the rotation shaft hole of the second reel 52 to hold the second reel 52 rotatably. .

  The second holding portion 42 is located at a position where the longitudinal direction thereof is parallel to the front-rear direction, in other words, when the engaging pin 42a is at a position furthest away from the engaging pin 41a of the first holding portion 41. 52 is held stably. On the other hand, as shown in FIG. 4, for example, when the number of electronic components required for the circuit board to be produced is small and the electronic components of the first reel 51 are sufficient, the second holding unit 42 is the first holding unit. It is folded to 41 side and stored in the side of the 1st holding part 41. Thereby, since the width of the tape feeder 10 in the front-rear direction is shortened, space saving of the electronic component supply device 5 can be achieved.

  As shown in FIG. 2, the first holding part 41 has a pair of rollers 41b and 41c. The pair of rollers 41 a and 41 b are inserted into an opening 34 a formed in the guide arm 34 with the conveyance direction of the circuit board as a rotation axis. The opening 34a of the guide arm 34 extends along the front-rear direction. The pair of rollers 41 a and 41 b move while being guided by the opening 34 a of the guide arm 34. Accordingly, the reel holding unit 13 is configured to be slidable in the front-rear direction along the guide arm 34 and is configured to be movable between an approaching position approaching the feeder body 11 and a separating position separating. Yes.

  FIG. 5A schematically shows an enlarged view of the main part of the rear end portion of the guide arm 34. The opening 34a of the guide arm 34 is formed with a pair of grooves 35, 36 including an upper groove 35 formed on the upper edge that defines the opening 34a and a lower groove 36 formed on the lower edge that defines the opening 34a. ing. The upper groove 35 is formed in front of the lower groove 36. Since the reel holder 13 is formed to extend rearward from the pair of rollers 41a and 41b, a self-weight torque in the clockwise direction is generated in the reel holder 13 with the pair of rollers 41a and 41b as the rotation shaft. Therefore, as shown in FIG. 5B, when the front roller 41b of the pair of rollers 41a and 41b is fitted into the upper groove 35 and the rear roller 41c is fitted into the lower groove 36, the reel holding portion 13 is fixed at the separated position. The A pair of grooves having a similar structure is also formed at the front end portion of the opening 34a of the guide arm 34, whereby the reel holding portion 13 is fixed at the approach position.

  As described above, the tape feeder 10 of this embodiment can automatically supply the standby tape from the second reel 52 to the electronic component mounting machine 1 after the feeding tape from the first reel 51 is consumed. it can. Further, before the standby tape from the second reel 52 is consumed, the operator takes out the first reel 51 from which the feed tape has been consumed from the first holding unit 41 and holds the second reel 52 in the first holding state. The second holding unit 42 is replenished with a new reel. Thereby, since it is not necessary to stop production for reel replacement, the production efficiency of the electronic component mounting machine 1 is improved.

  As shown in FIG. 6, in the tape feeder 10 of this embodiment, the reel holding unit 13 arranged at the upper position and the reel holding unit 13 arranged at the lower position are alternately arranged along the conveyance direction of the circuit board. Is set to be For this reason, in particular, the first holding portion 41 of the reel holding portion 13 disposed at the lower position is blocked by the reel holding portion 13 disposed at the upper position when observed by the operator. In the tape feeder 10 of the present embodiment, the reel holding portion 13 is configured to be movable between an approach position and a separation position. As a result, when the reel holding part 13 arranged at the lower position is placed at the separated position, the reel holding part 13 is exposed from the reel holding part 13 arranged at the upper position. The held reel can be easily exchanged.

  In the above-described embodiment, an example in which the guide arm 34 translates between the upper position and the lower position using the pair of links 32 and 33 has been described. As shown in FIG. 7, instead of the above embodiment, the guide arm 34 may be moved between an upper position and a lower position using an attachment / detachment mechanism. The support arm 31 of this example has a pair of upper engagement hooks 37a and a pair of lower engagement hooks 37b. Further, the guide arm 34 has a pair of engagement pins 38 formed at the front end. The guide arm 34 is disposed at the upper position when the pair of engagement pins 38 engage with the upper engagement hook 37a, and is disposed at the lower position when the pair of engagement pins 38 engage with the lower engagement hook 37b. The Such an attaching / detaching mechanism is characterized in that its form is simplified and it is resistant to breakage.

  As mentioned above, although the specific example of this invention was demonstrated in detail, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

10: Tape feeder 11: Feeder body 12: Movable mechanism 13: Reel holding part 21: First sprocket 22: Second sprocket 31: Support arm 32: First link 33: Second link 34: Guide arm 41: First holding Unit 42: second holding unit 51: first reel 52: second reel

Claims (7)

A tape feeder for supplying electronic components to a substrate working machine,
A reel holding unit for holding a first reel around which a first tape holding an electronic component is wound and a second reel around which a second tape holding an electronic component is wound at different positions within the reel holding surface; ,
The first tape from the first reel is sent to the substrate working machine, and the second tape from the second reel is automatically sent to the substrate working machine after the first tape is consumed. The feeder body,
A movable mechanism that is provided between the reel holding portion and the feeder main body and allows relative movement of the reel holding portion with respect to the feeder main body;
With
The movable mechanism can change the position of the reel holding portion with respect to the feeder body between an upper position and a lower position, and at least between the approach position and the separation position at the lower position. To
Tape feeder. The movable mechanism has a guide arm including a guide portion extending parallel to the reel holding surface,
The reel holding part is configured to be slidable between the approach position and the separation position along the guide part.
The tape feeder according to claim 1.   The guide arm is configured to be movable in parallel between a position when the reel holding portion is arranged at the upper position and a position when the reel holding portion is arranged at the lower position. The tape feeder according to claim 2. The movable mechanism has a first detachable portion and a second detachable portion to which the guide arm is selectively detached.
When the guide arm is attached to the first attaching / detaching portion, the reel holding portion is disposed at the upper position,
When the guide arm is attached to the second attaching / detaching portion, the reel holding portion is disposed at the lower position.
The tape feeder according to claim 2. The guide arm is formed with an opening extending as a guide portion along a sliding direction of the reel holding portion,
The opening is formed with a pair of grooves including a lower groove formed at a lower edge defining the opening and an upper groove formed at an upper edge defining the opening,
The reel holding portion has a pair of rollers inserted into the opening of the guide arm,
The position of the reel holding portion with respect to the feeder body is fixed when one of the pair of rollers fits into the lower groove and the other fits into the upper groove.
The tape feeder as described in any one of Claims 2-4. The pair of grooves are formed in each of one end and the other end of the opening of the guide arm,
When the pair of rollers are fitted into the pair of grooves formed at one end of the opening, the reel holding portion is disposed at the approach position,
When the pair of rollers are fitted into the pair of grooves formed at the other end of the opening, the reel holding portion is disposed at the separation position.
The tape feeder according to claim 5. The reel holding part has a first holding part and a second holding part,
The first holding unit is configured to hold the first reel,
The second holding part is disposed on a side farther from the feeder main body than the first holding part, and is close to the normal position for holding the second reel and the feeder main body and does not hold the second reel. Configured to be movable between storage positions,
The tape feeder as described in any one of Claims 1-6.

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