JP7047041B2 - Tape feeder - Google Patents

Description

The technique disclosed herein 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 for holding an electronic component is wound, and a feeder main body that sends the tape from the reel to a board working machine. A plurality of tape feeders are mounted in parallel on the board working machine along the transfer direction of the board. Normally, the reel holder is wider than the feeder body. Therefore, the number of tape feeders that can be mounted on the board working machine is limited by the width of the reel holding portion.

As the types of electronic components mounted on the board increase, it is desired to mount more tape feeders on the board working machine. The tape feeder disclosed in Japanese Patent Application Laid-Open No. 2004-47951 includes a movable mechanism provided between the feeder main body and the 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 holder with respect to the feeder body so as to avoid contact of the reel holder between adjacent tape feeders. As a result, the number of tape feeders that can be mounted on the board working machine is limited not by the width of the wide reel holding portion but by the width of the narrow feeder main body. In this way, if the tape feeder is provided with a movable mechanism, more tape feeders can be mounted on the board 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 Application Laid-Open No. 2014-82454. The feeder body of this type of tape feeder automatically sends the tape from the other reel to the board working machine after the tape from one reel is consumed. As a result, it is possible to omit the manual splicing work of the tape and to replace the reel in which the tape is consumed while continuing the production, so that the production efficiency of the board working machine is improved. do.

It is an object of the present specification to provide a novel tape feeder with a reel holder for holding two reels.

One embodiment of the tape feeder disclosed herein is configured to supply electronic components to a board working machine, including a reel holder, a feeder body, and a guide arm . The reel holding portion holds a first reel on which the first tape for holding the electronic component is wound and a second reel on which the second tape for holding the electronic component is wound. The feeder body is mounted on the board working machine. The guide arm is provided between the feeder main body and the reel holding portion, and allows the reel holding portion to move relative to the feeder main body mounted on the board working machine . The guide arm includes a guide portion extending between an approach position close to the feeder body and a distance position away from the feeder body. The reel holding portion is configured to be slidable between the approaching position and the separating position along the guide portion. The position of the guide arm is fixed with respect to the feeder main body mounted on the board working machine via the attachment / detachment mechanism including the engaging portion.

In the guide arm of the above embodiment, the position of the reel holding portion with respect to the feeder main body can be changed between the approaching position and the separating position. Further, the position of the guide arm is fixed with respect to the feeder main body mounted on the board working machine via the attachment / detachment mechanism including the engaging portion. Such a detachable mechanism has a feature that the form is simplified and it is resistant to breakage.

It is a figure which shows the outline of the structure of the electronic component mounting machine and the electronic component supply machine mounted on the electronic component mounting machine schematically. It is a figure which shows the outline of the structure of the tape feeder schematically, and is the figure which shows the state which the reel holding part is arranged in the upper position. It is a figure which shows the outline of the structure of the tape feeder schematically, and is the figure which shows the state which the reel holding part is arranged in the lower position. It is a figure which shows a mode that the 2nd holding part of a reel holding part moves between a normal position and a storage position. It is a figure which shows typically the enlarged view of the main part of the rear end part of a guide arm, and is the figure which shows the state which a pair of rollers are not fitted into a pair of grooves. It is a figure which shows typically the enlarged view of the main part of the rear end part of a guide arm, and is the figure which shows the state which a pair of rollers are fitted into a pair of grooves. It is a figure which shows the outline of the structure of the electronic component mounting machine and the electronic component supply machine mounted on the electronic component mounting machine schematically, and is a figure which shows the state when the reel holding part in the lower position is arranged in the separated position. It is a figure which shows the outline of the structure of a tape feeder schematically, and is the figure which shows the outline of the movable mechanism of a modification.

One embodiment of the tape feeder disclosed in the present specification is configured to supply electronic components to a substrate working machine, and may include a reel holding portion, a feeder main body, and a movable mechanism. The reel holder holds the first reel on which the first tape for holding the electronic component is wound and the second reel on which the second tape for holding the electronic component is wound at different positions in the reel holding surface. You may. 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, if necessary. The feeder main body may send the first tape from the first reel to the board working machine and automatically send the second tape from the second reel to the board working machine after the first tape is consumed. .. In this way, the tape feeder can automatically perform the tape splicing work. The movable mechanism is 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 be able to 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 further allow the position of the reel holding portion with respect to the feeder body to be changeable between an approaching position and a separating position, at least in the lower position.

The movable mechanism may have a guide arm including a guide portion extending parallel to the reel holding surface. In this case, the reel holding portion may be configured to be slidable between the approaching position and the separating position along the guide portion. 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 approaching position and the separating position at least in the lower position.

The guide arm may be configured to be able to translate between the position when the reel holding portion is arranged in the upper position and the position when the reel holding portion is arranged in 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 which the guide arm is selectively attached / detached. In this case, when the guide arm is attached to the first attachment / detachment portion, the reel holding portion is arranged at the upper position. When the guide arm is attached to the second attachment / detachment portion, the reel holding portion is arranged 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 on the lower edge defining the opening and an upper groove formed on the upper edge defining the opening. The reel holder 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 main 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 of the reel holding portion with respect to the feeder main body in the sliding direction can be realized with a simple structure.

The pair of grooves may be formed at one end and the other end of the opening of the guide arm, respectively. When the pair of rollers fits into the pair of grooves formed at one end of the opening, the reel holdings are placed in close proximity. When the pair of rollers fits into the pair of grooves formed at the other end of the opening, the reel holdings are placed in separate positions. 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 portion may have a first holding portion and a second holding portion. The first holding portion may be configured to hold the first reel. The second holding portion is arranged on the side farther from the feeder main body than the first holding portion, and is between a normal position for holding the second reel and a storage position close to the feeder main body and not holding the second reel. It may be configured to be movable. According to this aspect, when the second holding portion does not hold the second reel, the second holding portion can be moved to the storage position to save space.

FIG. 1 shows an electronic component mounting machine 1 used in an electronic component mounting line. FIG. 1 shows two electronic component mounting machines 1, and the exterior plate of one of the electronic component mounting machines 1 is shown in a transparent state. 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 transport device 2 is a double conveyor type, and transports the circuit board along the transport direction (direction of the arrow in the figure). The mounting head 3 is connected to the moving device 4 and has a suction nozzle for sucking 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. The electronic component mounting machine 1 is equipped with an electronic component supply device 5. The electronic component supply device 5 has a plurality of tape feeders 10 arranged in parallel along the transport direction of the circuit board. In this way, the electronic component mounting machine 1 sucks the electronic components supplied from the tape feeder 10 of the electronic component supply device 5 by the suction nozzle of the mounting head 3, and uses the moving device 4 to circuit the mounting head 3. Move it to the board and mount the electronic components in place on the circuit board.

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

As shown in FIG. 2, the tape feeder 10 has a feeder main body 11, a movable mechanism 12, and a reel holding portion 13. The tape feeder 10 is a type called an autoloading feeder and holds two reels 51 and 52. A first tape (hereinafter referred to as a transmission tape) for holding electronic components at regular pitch intervals is wound on the first reel 51. A second tape (hereinafter referred to as a standby tape) for holding electronic components at regular pitch intervals is wound on the second reel 52. The electronic components held on the sending tape and the electronic components held on the standby tape are of the same type. The first reel 51 and the second reel 52 are held at different positions in the reel holding plane orthogonal to the transport direction of the circuit board. The reel holding surface is also the surface on which the feeder main body 11 exists.

The feeder main body 11 is configured to be detachably attached to the frame of the electronic component supply device 5, and has 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 with each other. The first sprocket 21 and the second sprocket 22 engage with the feed holes formed in the feed tape from the first reel 51, and pitch feed the feed tape to the component suction position along the tape guide (not shown). .. The tip of the standby tape from the second reel 52 stands by above the second sprocket 22. After the delivery 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 sending tape is consumed, and the tape splicing work which has been manually performed up to now can be performed. It can be omitted. As a result, the work efficiency of the worker is improved, and the production is not stopped due to forgetting the splicing work or the work mistake, so that the production efficiency of the electronic component mounting machine 1 is improved.

The movable mechanism 12 is configured to allow the reel holding portion 13 to move relative to the feeder main body 11, and has a support arm 31, a pair of links 32, 33, and a guide arm 34. The upper end of the support arm 31 is fixed to the rear end of the feeder body 11, extends parallel to the reel holding surface, and extends downward from the rear end of the feeder body 11. The lower end of the support arm 31 has a connecting portion 31a extending backward. The first link 32 extends parallel to the reel holding surface, one end thereof is rotatably connected to the connecting portion 31a of the support arm 31, and the other end is rotatably connected to the front end portion of the guide arm 34. Is linked to. The second link 33 also extends parallel to the reel holding surface, one end of which is rotatably connected to the connecting portion 31a of the support arm 31, and the other end of which is rotatably connected to the front end of the guide arm 34. Is linked to. The first link 32 and the second link 33 have the same length between the connecting portion 31a of the support arm 31 and the guide arm 34. As a result, the guide arm 34 is configured to be able to translate 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 moves the guide arm 34 in parallel using the pair of links 32 and 33, so that the position of the reel holding portion 13 with respect to the feeder main body 11 is set to the upper position (see FIG. 2) and the lower position (see FIG. 2). 3) and can be changed. As shown in FIGS. 2 and 3, when the reel holding portion 13 and the pair of reels 51 and 52 are in the upper position, the existence range is such that the reel holding portion 13 and the pair of reels 51 and 52 are in the lower position. It does not overlap with the range of existence at the time. Therefore, as shown in FIG. 1, when a plurality of tape feeders 10 are mounted on the electronic component mounting machine 1, the reel holding portion 13 arranged at the upper position and the reel holding portion arranged at the lower position are arranged. Are set so as to alternate along the transport direction, the contact of the reel holding portions 13 between the adjacent tape feeders 10 is avoided. Since the reel holding portion 13 is configured to be wider than the feeder main body 11, the number of tape feeders 10 that can be mounted on the electronic component mounting machine 1 is increased by avoiding contact with the reel holding portion 13. It will be limited by the width of the narrow feeder body 11 instead of the width of 13. As a result, more tape feeders 10 can be mounted on the electronic component mounting machine 1, so that the electronic component mounting machine 1 can mount a wide variety of electronic components on the circuit board.

As shown in FIG. 2, the reel holding portion 13 has a first holding portion 41 and a second holding portion 42. The first holding portion 41 is arranged closer to the feeder main body 11 than the second holding portion 42. The first holding portion 41 has an engaging pin 41a, and the engaging pin 41a engages with the rotary shaft hole of the first reel 51 to rotatably hold the first reel 51. The second holding portion 42 is arranged on the side farther from the feeder main body 11 than the first holding portion 41, and is composed of a rectangular plate member. The front end portion of the second holding portion 42 is rotatably connected to the first holding member 41. The second holding portion 42 also has an engaging pin 42a at the rear end portion, and the engaging pin 42a engages with the rotary shaft hole of the second reel 52 to rotatably hold the second reel 52. ..

The second reel of the second holding portion 42 is at a position where its longitudinal direction is parallel to the front-rear direction, in other words, when the engaging pin 42a is at a position farthest from the engaging pin 41a of the first holding portion 41. Holds 52 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 the 41 side and stored on the side of the first holding portion 41. As a result, the width of the tape feeder 10 in the front-rear direction is shortened, so that the space of the electronic component supply device 5 can be saved.

As shown in FIG. 2, the first holding portion 41 has a pair of rollers 41b and 41c. The pair of rollers 41a and 41b have a rotation axis in the transport direction of the circuit board, and are inserted into the openings 34a formed in the guide arm 34. The opening 34a of the guide arm 34 extends along the front-rear direction. The pair of rollers 41a and 41b are guided by the opening 34a of the guide arm 34 and move. As a result, the reel holding portion 13 is configured to be slidable in the front-rear direction along the guide arm 34, and is configured to be movable between an approach position approaching the feeder main body 11 and a separation position away from the feeder body 11. There is.

FIG. 5A schematically shows an enlarged view of a 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 defining the opening 34a and a lower groove 36 formed on the lower edge defining the opening 34a. ing. The upper groove 35 is formed in front of the lower groove 36. Since the reel holding portion 13 is formed so as to extend rearward from the pair of rollers 41a and 41b, the reel holding portion 13 generates its own weight torque clockwise with the pair of rollers 41a and 41b as rotation axes. 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. Ru. A pair of grooves having a similar structure is also formed in the front end portion of the opening 34a of the guide arm 34, whereby the reel holding portion 13 is fixed in the approaching position.

As described above, the tape feeder 10 of the present embodiment can automatically supply the standby tape from the second reel 52 to the electronic component mounting machine 1 after the transmission tape from the first reel 51 is consumed. can. Further, the operator takes out the first reel 51 from which the transmission tape has been consumed from the first holding unit 41 and holds the second reel 52 in the first position before the standby tape from the second reel 52 is consumed. It is moved to the unit 41, and a new reel is supplied to the second holding unit 42. As a result, it is not necessary to stop the production for reel replacement, so that 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 portion 13 arranged at the upper position and the reel holding portion 13 arranged at the lower position alternate along the transport direction of the circuit board. It is set to be. Therefore, in particular, the first holding portion 41 of the reel holding portion 13 arranged at the lower position is blocked by the reel holding portion 13 arranged at the upper position when observed from the operator. In the tape feeder 10 of this embodiment, the reel holding portion 13 is configured to be movable between the approaching position and the separating position. As a result, when the reel holding portion 13 arranged at the lower position is placed at a separated position, the reel holding portion 13 is exposed from the reel holding portion 13 arranged at the upper position. The reels that are held can be easily replaced.

In the above embodiment, an example is shown in which the guide arm 34 moves in parallel between the upper position and the lower position by using the pair of links 32 and 33. As shown in FIG. 7, instead of the above embodiment, the guide arm 34 may be moved between the upper position and the lower position by using the attachment / detachment mechanism. The support arm 31 of this example has a pair of upper engaging hooks 37a and a pair of lower engaging hooks 37b. Further, the guide arm 34 has a pair of engaging pins 38 formed at the front end portion. The guide arm 34 is arranged in the upper position when the pair of engaging pins 38 engages with the upper engaging hook 37a, and is arranged in the lower position when the pair of engaging pins 38 engages with the lower engaging hook 37b. To. Such a detachable mechanism has a feature that the form is simplified and it is resistant to breakage.

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The techniques described in the claims include various modifications and modifications of the specific examples exemplified above.

The technical elements described herein or in the drawings exhibit their 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 techniques exemplified in the present specification or the drawings achieve a plurality of purposes at the same time, and achieving one of the purposes itself has technical usefulness.

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 Part 42: Second holding part 51: First reel 52: Second reel

Claims (5)

A tape feeder that supplies electronic components to board work machines.
A reel holding portion that holds a first reel on which a first tape for holding an electronic component is wound and a second reel on which a second tape for holding an electronic component is wound.
The feeder body mounted on the board work machine and
A guide arm provided between the reel holding portion and the feeder main body and allowing the reel holding portion to move relative to the feeder main body mounted on the substrate working machine, and a guide arm.
Equipped with
The guide arm includes a guide portion extending between an approach position close to the feeder body and a distance position away from the feeder body.
The reel holding portion is configured to be slidable between the approaching position and the separating position along the guide portion.
The position of the guide arm is fixed with respect to the feeder main body mounted on the board working machine via an attachment / detachment mechanism including an engaging portion.
Tape feeder. With the guide arm fixed in position with respect to the feeder body via the attachment / detachment mechanism, the feeder body is wound around the first tape or the second reel wound around the first reel. The tape feeder according to claim 1, wherein the second tape is supplied to the substrate working machine. The tape feeder according to claim 1 or 2, wherein the attachment / detachment mechanism has a pair of engaging hooks. The attachment / detachment mechanism further comprises a pair of engaging pins provided on the guide arm .
The tape feeder according to claim 3 , wherein the pair of engaging hooks engages with the pair of engaging pins and the position of the pair of engaging hooks is fixed with respect to the feeder main body mounted on the substrate working machine. The guide arm is formed with an opening extending along the sliding direction of the reel holding portion as the guide portion.
The opening is formed with a pair of grooves including a lower groove formed on the lower edge defining the opening and an upper groove formed on the 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 main 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.
The tape feeder according to any one of claims 1 to 4 .

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