Feeder, component mounting machine, and component mounting method

Abstract

This feeder, a plurality of which are removably attached side-by-side to a component mounting machine for feeding a tape containing components so as to supply the components, comprises a feeder body provided with a holding portion for holding a reel onto which the tape is wound, and a plate-shaped cover for opening and closing the holding portion by a turning motion about a supporting shaft. An end portion of the cover on the front side in the attachment direction of the feeder relative to the component mounting machine is provided with an inclined portion having an inclined surface that is inclined toward the feeder body side relative to the outer surface of the cover.

Description

Technical Field

[0001] This specification discloses a feeder, a component mounting machine, and a component mounting method.

Background Art

[0002] Conventionally, a feeder is known in which a reel around which a tape containing components is wound is attached, and the tape is fed out by rotating the reel to supply the components. For example, Patent Document 1 describes a feeder including a reel holder that holds a reel, a cover that covers at least a part of the reel in the reel holder, a displacement mechanism that holds the reel holder displaceable in the width direction with respect to the feeder body, and a bumper portion provided in a tapered shape at the front end portion of the feeder body. When this feeder is attached to a component mounting machine, the bumper portion first abuts against the reel holder of the adjacent feeder, and by displacing the reel holder of the adjacent feeder, it prevents the feeders from colliding forcefully with each other.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As described above, contact with an adjacent feeder when the feeder is attached to and detached from the component mounting machine may be a problem. For example, if the cover lock is not properly secured, the cover may be in a semi-open state when the feeder is attached to the component mounting machine, so the cover may collide forcefully with the adjacent feeder and damage the feeder. Also, in a configuration where the reel holder is displaceable, the reel holder may come into contact with and rub against the adjacent feeder, and if the rubbing continues, the surface may be significantly worn and the feeder may be damaged.

[0005] The primary purpose of this disclosure is to prevent damage to the feeder caused by contact between adjacent reels. [Means for solving the problem]

[0006] This disclosure employs the following means to achieve the primary objectives described above.

[0007] The feeder in this disclosure is A feeder that is detachably mounted in a series in a component mounting machine and supplies components by feeding out tapes containing components, A feeder body is provided with a holding part for holding the reel around which the tape is wound, A plate-shaped cover that opens and closes the holding part by rotation via a pivot shaft, Equipped with, The gist of the cover is that, at the front end in the direction in which the feeder is attached to the component mounting machine, there is an inclined portion having an inclined surface that slopes toward the feeder body with respect to the outer surface of the cover.

[0008] Even when the cover of the feeder in this disclosure is partially open when it is attached to a component mounting machine, the inclined portion on the front side will come into contact with the adjacent feeder, thus preventing damage to the feeder. [Brief explanation of the drawing]

[0009] [Figure 1] A schematic diagram showing the general configuration of the component mounting machine 10. [Figure 2] A schematic diagram showing the general configuration of the tape feeder 20. [Figure 3] A schematic diagram showing the general configuration of the tape feeder 20. [Figure 4] A perspective view showing a schematic configuration of the rear section of the tape feeder 20. [Figure 5] An explanatory diagram showing the general configuration of the rear section of the tape feeder 20. [Figure 6] An explanatory diagram showing the general configuration of the front of the reel cover 30. [Figure 7]An explanatory diagram showing an example of how to install the tape feeder 20. [Figure 8] An explanatory diagram showing an example of how to install the tape feeder 20. [Figure 9] An explanatory diagram showing an example of how to install the tape feeder 20. [Modes for carrying out the invention]

[0010] Next, embodiments of the present disclosure will be described with reference to the drawings. Figure 1 is a schematic diagram showing the configuration of the component mounting machine 10. Figures 2 and 3 are schematic diagrams showing the configuration of the tape feeder 20. Figure 2 shows the configuration of the front side of the tape feeder 20, and Figure 3 shows the configuration of the back side of the tape feeder 20. As shown in Figure 1, the component mounting machine 10 includes a substrate transport device 11 for transporting substrates S, a tape feeder 20 for supplying components, a head 14 on which nozzles for picking up components are arranged to be vertically movable, and a moving device 15 for moving the head 14 in the XY direction. The substrate transport device 11 has two pairs of conveyor belts, and the substrates S are transported by each conveyor belt.

[0011] The tape feeder 20 supplies parts by, for example, sending a tape containing parts at a predetermined pitch to a supply position where the parts can be picked up using the nozzle of the head 14. The tape, although not shown in the figure, consists of a bottom tape with cavities (recesses) for accommodating parts at predetermined intervals and a film-like cover tape that covers the bottom tape. The tape feeder 20 is set with a reel 40 on which the tape is wound, pulls the tape from the reel 40 and sends it to the supply position, and peels the cover tape from the bottom tape just before reaching the supply position, making the parts ready to be picked up.

[0012] Furthermore, multiple tape feeders 20 are mounted in a row on a feeder stand 16 provided on the component mounting machine 10. The feeder stand 16 is an L-shaped stand in side view and is equipped with multiple slots 17, two positioning holes 18 corresponding to each slot 17, and connectors 19 corresponding to each slot 17. The tape feeders 20 are mounted on the feeder stand 16 by inserting the tape feeders 20 into the slots 17 and sliding them. In the component mounting machine 10, multiple types of components are supplied from the multiple tape feeders 20 mounted on the feeder stand 16, and each supplied component can be picked up by the nozzle of the head 14 and mounted on the circuit board S.

[0013] As shown in Figure 2, the tape feeder 20 comprises a feeder body 21 provided with a reel holder 26 for holding the reel 40, and a plate-shaped reel cover 30 for opening and closing the reel holder 26.

[0014] The reel holder 26 is configured to hold multiple types of reels 40 of different sizes so that they can rotate around a central axis, and a holding shaft 26a is provided in the center to hold the central axis of the reel 40. Furthermore, the reel holder 26 is provided so as to be displaceable relative to the feeder body 21 in the alignment direction (see Figure 1), which is the direction in which the tape feeder 20 is aligned on the feeder stand 16. Although not shown in the figures, the reel holder 26 has, for example, a recess formed at the bottom into which a projection of the feeder body 21 is loosely fitted, and a projection formed at the top into which the recess of the feeder body 21 is loosely fitted, and the loose fitting of the projection and recess allows the reel holder 26 to be displaceable relative to the feeder body 21. Since this displaceable configuration is described in the applicant's WO2019 / 229824A1, a detailed explanation is omitted. Note that the width of the feeder body 21, i.e., the thickness in the alignment direction, is set to be smaller than the pitch of the slots 17 on the feeder stand 16, but the width of the reel holder 26 is set to be larger than the width of the feeder body 21. Therefore, when the tape feeder 20 is attached to or detached from the feeder stand 16 with the reel holder 26 displaced, the reel holder 26 may come into contact with and rub against an adjacent tape feeder 20.

[0015] The feeder body 21 is provided with two positioning pins 22 and a connector 23 at the front end in the mounting direction of the tape feeder 20 to the feeder base 16 (see FIG. 2) so as to project forward in the mounting direction. The two positioning pins 22 are respectively inserted into two positioning holes 18 of the feeder base 16. The connector 23 is provided between the two positioning pins 22 and is connected to the connector 19 of the feeder base 16.

[0016] Also, the feeder body 21 is provided with a front bumper 24 for preventing collision that projects forward at the front end in the mounting direction. Although detailed illustration of the front bumper 24 is omitted, it is formed in a triangular shape in top view so that the tip side is tapered. Therefore, when the tape feeder 20 is attached to the feeder base 16, even if the reel holder 26 of the adjacent tape feeder 20 is displaced, the front bumper 24 can abut against the reel holder 26 and be displaced so as to fit into the adjacent tape feeder 20. Thereby, when attaching the tape feeder 20, it is possible to prevent it from colliding forcefully with the reel holder 26 of the adjacent tape feeder 20 and being damaged.

[0017] Furthermore, as shown in FIG. 3, the feeder body 21 is provided with a seal member 35 on the back side. The seal member 35 is formed in substantially the same size as the size of the back region of the reel holder 26 and is attached. The seal member 35 is formed of a resin material having abrasion resistance and slidability, such as ultra-high molecular weight polyethylene which is excellent in abrasion resistance and slidability. Note that the seal member 35 may be provided not only in the back region of the reel holder 26 but also in a part or all of the back region of the feeder body 21.

[0018] FIG. 4 is a perspective view showing an outline of the configuration of the rear part of the tape feeder 20. FIG. 5 is an explanatory view showing an outline of the configuration of the rear part of the tape feeder 20. As shown in the drawings, the feeder main body 21 is provided with a rear bumper 25 for preventing collision that protrudes rearward at the rear end in the mounting direction. The rear bumper 25 is composed of a metal base 25a located on the front surface side of the tape feeder 20 and integrally provided on the feeder main body 21, and a resin contact portion 25b located on the back surface side and fixed to the base 25a by screwing. That is, the rear bumper 25 is provided with the contact portion 25b on the back surface side opposite to the reel cover 30. Further, the contact portion 25b has a tapered surface 25s formed such that the thickness in the arrangement direction of the tape feeder 20 (see FIG. 1) decreases as it goes rearward, which is the protruding end side. This contact portion 25b is formed such that the inclination angle a1 of the tapered surface 25s is an acute angle of about 30 to 45° with respect to the back surface of the feeder main body 21.

[0019] The reel cover 30 is a plate-like member that opens and closes the reel holder 26 by rotating via a support shaft 32 provided at the lower part, and enables the attachment and detachment of the reel 40 to the reel holder 26 in the open state. This reel cover 30 is formed of a single metal plate and is sized to cover from the lower end of the reel holder 26 to above the holding shaft 26a in the closed state and expose the upper part of the reel holder 26. That is, the reel cover 30 is sized to cover more than half of the disk surface area of the reel 40 held by the reel holder 26. Further, an opening 31 is formed in the reel cover 30. Here, an identification code 42 such as a barcode or a two-dimensional code for reading identification information such as the type of component is provided on the reel 40. This identification code 42 can be read by rotating the reel 40 to expose it from above the reel cover 30 or by exposing it from the opening 31.

[0020] Figure 6 is an explanatory diagram illustrating the schematic configuration of the front of the reel cover 30. The reel cover 30 is provided with a collision prevention wing 34 at the front end in the mounting direction. This collision prevention wing 34 has an inclined surface 34s that is sharply inclined toward the feeder body 21 with respect to the plate surface (outer surface) of the reel cover 30. The collision prevention wing 34 is formed by bending a part of the front end of the reel cover 30 so that the inclination angle a2 of the inclined surface 34s is, for example, about 30 to 45°.

[0021] The tape feeder 20 includes a locking mechanism for locking the reel cover 30, consisting of a front locking mechanism 27 and a rear locking mechanism 28 in the mounting direction of the tape feeder 20. Although detailed illustrations are omitted, the locking mechanisms 27 and 28 are configured such that the operator locks the reel cover 30 by pushing it towards the locking mechanisms 27 and 28, respectively, and releases the lock by pushing the release lever upwards. A magnet 29 for attracting the reel cover 30 is provided inside the rear locking mechanism 28. On the other hand, the front locking mechanism 27 does not have a magnet. This is to prevent the locking of the reel cover 30 from being hindered by parts that have fallen off the tape near the supply position being attracted and held in place by the magnet in the locking mechanism 27.

[0022] The following describes how the tape feeder 20 configured in this way is attached to the feeder stand 16. Figures 7 to 9 are explanatory diagrams showing an example of how the tape feeder 20 is attached. Here, the upper tape feeder 20, which is attached later, slides in while the adjacent tape feeder 20 (the lower tape feeder 20 in Figures 7 to 9) is attached first. The reel cover 30 of the tape feeder 20 that is attached later is left in a half-open state, not securely locked. Therefore, as shown in Figure 7, the reel cover 30 slides in the attachment direction (in the direction of the white arrow) while remaining in a half-open state.

[0023] As shown in Figure 8, the inclined surface 34s of the collision prevention fin 34 of the reel cover 30 contacts the tapered surface 25s of the rear bumper 25 of the adjacent tape feeder 20. That is, when the reel cover 30 is half-open, the inclined surface 34s first contacts the adjacent tape feeder 20. As a result, the force received by the inclined surface 34s acts on the reel cover 30, moving it in the closing direction (direction of the black arrow), thereby effectively preventing the tape feeders 20 from colliding forcefully (see Figures 8 and 9). In this way, when a tape feeder 20 with a half-open reel cover 30 is installed, the force received from contact with the adjacent tape feeder 20 moves the reel cover 30 in the closing direction, thus preventing damage.

[0024] As mentioned above, a sealing member 35 is provided on the back of the reel holder 26. If the back of the reel holder 26 continues to rub against the reel cover 30 of the adjacent tape feeder 20, abrasive wear will occur, causing deep scratches on the surface and damaging the appearance of the tape feeder 20. In this embodiment, by providing a sealing member 35 with wear resistance, such wear can be suppressed and damage can be prevented. In addition, since the sealing member 35 has sliding properties, it can suppress the increase in sliding resistance and the resulting loss of sliding performance when attaching and detaching the tape feeder 20. If the sealing member 35 becomes significantly worn or damaged, the operator can replace the sealing member 35.

[0025] Here, the correspondence between the components of this embodiment and the components of the present disclosure will be clarified. In this embodiment, the tape feeder 20 corresponds to the feeder, the reel holder 26 corresponds to the holding part, the feeder body 21 corresponds to the feeder body, the reel cover 30 corresponds to the cover, and the collision prevention wing 34 corresponds to the inclined part. The rear bumper 25 corresponds to the protruding part. The locking mechanism 27 corresponds to the front locking mechanism, the locking mechanism 28 corresponds to the rear locking mechanism, and the magnet 29 corresponds to the magnet. The sealing member 35 corresponds to the sealing member. The head 14 corresponds to the mounting head, and the component mounting machine 10 corresponds to the component mounting machine. In addition, an example of the component mounting method of the present disclosure is also clarified in this embodiment.

[0026] In the tape feeder 20 of this embodiment described above, even if the reel cover 30 is half-open when it is attached to the feeder stand 16 of the component mounting machine 10, the collision prevention wing 34 can contact the adjacent tape feeder 20 and move the reel cover 30 in the closing direction. Therefore, even if the reel cover 30 is half-open, it can be prevented from colliding forcefully with the adjacent tape feeder 20, thereby preventing damage to the tape feeder 20.

[0027] Furthermore, the rear bumper 25 of the tape feeder 20 has a tapered surface 25s on the back side opposite to the reel cover 30, which is formed so that the thickness in the direction of alignment decreases towards the rear. As a result, the inclined surface 34s of the collision prevention wing 34 and the tapered surface 25s of the rear bumper 25 come into contact, which can more reliably prevent the half-open reel cover 30 from colliding forcefully with the adjacent tape feeder 20.

[0028] Furthermore, the rear locking mechanism 28 is equipped with a magnet 29 for attracting the reel cover 30, while the front locking mechanism 27 is not equipped with a magnet for attracting the reel cover 30. Therefore, if the operator forgets to lock the front locking mechanism 27, the reel cover 30 will remain partially open, making the application of this disclosure highly significant.

[0029] Furthermore, since the reel holder 26 is provided with a sealing member 35 on its back, wear can be suppressed and damage can be prevented. Also, since the sealing member 35 has sliding properties, it can prevent the sliding performance of the tape feeder 20 from being impaired.

[0030] It goes without saying that this disclosure is not limited in any way to the embodiments described above, and can be implemented in various forms as long as they fall within the technical scope of this disclosure.

[0031] For example, in the embodiment described above, the rear bumper 25 is composed of a metal base 25a and a resin contact portion 25b, but it is not limited to this, and the entire rear bumper 25 may be made of a single component such as resin and attached to the feeder body 21. Also, a resin plate or the like may be attached to the inclined surface 34s (contact surface) of the collision prevention wing 34 of the reel cover 30.

[0032] In the embodiment described above, the reel cover 30 is provided with collision prevention fins 34 and the feeder body 21 is provided with a rear bumper 25, but the embodiment is not limited to this. The reel cover 30 may be provided with collision prevention fins 34, while the feeder body 21 may not be provided with a rear bumper 25. Alternatively, the feeder body 21 may be provided with a rear bumper 25, while the reel cover 30 may not be provided with collision prevention fins 34. If either the collision prevention fins 34 or the rear bumper 25 is provided, when the partially open reel cover 30 comes into contact with an adjacent tape feeder 20, the reel cover 30 can be moved in the closing direction, thereby effectively preventing the tape feeders 20 from colliding forcefully with each other. Furthermore, although a configuration with a front bumper 24 has been illustrated, the front bumper 24 is not an essential component, and it may not be provided.

[0033] In the above-described embodiment, the sealing member 35 is provided on the back side of the feeder body 21 (reel holder 26), but it is not limited to this, and the sealing member 35 may be provided on the front side of the feeder body 21, i.e., on the reel cover 30. Alternatively, it is not limited to the case where the sealing member 35 is provided, and the sealing member 35 may not be provided at all.

[0034] In the embodiment described above, the magnet 29 is provided only on the rear locking mechanism 28, but it is not limited to this, and the front locking mechanism 27 may also be provided with a magnet. However, as described above, it is preferable that the magnet 29 is not provided in order to prevent the attraction of detached parts. Furthermore, the magnet 29 may not be provided on either the front or rear locking mechanisms 27 or 28.

[0035] In the embodiment described above, the reel cover 30 is provided with collision prevention fins 34 and a rear bumper 25 as a structure to prevent collisions when it is in a half-open state, and a sealing member 35 is provided on the rear side of the reel holder 26, but the embodiment is not limited to this. That is, the reel cover 30 may not have a collision prevention structure, and the sealing member 35 may be provided on the rear side of the reel holder 26. Even in this case, damage due to wear of the reel holder 26 can be prevented. [Industrial applicability]

[0036] This disclosure can be used in fields such as component mounting. [Explanation of symbols]

[0037] 10 Component mounting machine, 11 Board transport device, 14 Head, 15 Moving device, 16 Feeder stand, 17 Slot, 18 Positioning hole, 19 Connector, 20 Tape feeder, 21 Feeder body, 22 Positioning pin, 23 Connector, 24 Front bumper, 25 Rear bumper, 25a Base, 25b Contact part, 25s Inclined surface, 26 Reel holder, 26a Holding shaft, 27, 28 Locking mechanism, 29 Magnet, 30 Reel cover, 31 Opening, 32 Support shaft, 34 Collision prevention fin, 34s ​​Inclined surface, 35 Seal member, 40 Reel, 42 Identification code, S Substrate.

Claims

1. A feeder that is detachably mounted in a series in a component mounting machine and supplies components by feeding out tapes containing components, A feeder body is provided with a holding part for holding the reel around which the tape is wound, A plate-shaped cover that opens and closes the holding part by rotation via a pivot shaft, Equipped with, The cover is provided with an inclined portion at its front end in the direction of mounting the feeder to the component mounting machine, having an inclined surface that slopes toward the feeder body with respect to the outer surface of the cover. The feeder body is provided with a projection that protrudes rearward from the rear end in the mounting direction. The aforementioned protrusion has a tapered surface formed on the rear side of the feeder body opposite to the cover, such that the thickness of the protrusion decreases as it moves towards the rear in the direction of the feeder arrangement. The tapered surface is formed such that it is inclined at an angle of 30° to 45° with respect to the back surface of the feeder body. The inclined surface is formed such that its inclination angle is between 30° and 45° with respect to the outer surface of the cover. feeder.

2. A feeder according to claim 1, The cover is equipped with a locking mechanism that locks the front and rear sides in the mounting direction, respectively. The cover is formed from a metal plate, The rear locking mechanism is provided with a magnet for attracting the cover, while the front locking mechanism is not provided with a magnet for attracting the cover. feeder.

3. A feeder according to claim 1 or 2, The feeder body is provided with a holding portion that is displaceable in the direction of the feeder arrangement, and a sliding sealing member is provided on the back surface opposite to the cover. feeder.

4. A feeder according to any one of claims 1 to 3, A mounting head that collects components supplied from the feeder and mounts them onto an object, A component mounting machine equipped with the following features.

5. (a) the step of supplying components from a feeder according to any one of claims 1 to 3, (b) A step of taking the parts supplied in step (a) and mounting them onto the object, A component mounting method that includes this.

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