feeder

Abstract

This invention discloses a feeder that can improve the operator's operability when removing the feeder from the device pallet. [Solution] The feeder transports a carrier tape containing electronic components and supplies the electronic components from the front supply section to the electronic component mounting machine. The feeder comprises a main body, a clamper, and a release lever. The clamper is provided on the main body and engages with the engaged portion of the device pallet when mounted on the device pallet of the electronic component mounting machine. The release lever is mounted on the rear of the main body via a pivot shaft and is rotated upward to release the engagement by the clamper. The release lever also has a hook portion formed on the end opposite the pivot shaft, in the direction extending to the rear of the main body, for the operator to grip with their finger to rotate the release lever.

Description

Technical Field

[0001] This specification discloses a technology related to a feeder.

Background Art

[0002] The parts feeder described in Patent Document 1 includes a clamp release mechanism having a release operation part operated by an operator. Specifically, when an operator removes the parts feeder attached to the feeder base, first, the operator swings the swing part of the release operation part from the upright posture to the lying posture. Then, the operator can move the whole parts feeder in the direction of detachment from the feeder base by pulling the lying swing part backward.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When removing the feeder mounted on the device pallet of an electronic component mounter from the device pallet, there is a demand to improve the operability of the operator.

[0005] In view of such circumstances, this specification discloses a feeder capable of improving the operability of an operator when removing the feeder from the device pallet.

Means for Solving the Problems

[0006] This specification discloses a feeder that transports a carrier tape containing electronic components and supplies the electronic components from a front supply unit to an electronic component mounting machine. The feeder comprises a main body, a clamper, and a release lever. The clamper is provided on the main body and engages with a engaged portion of the device pallet of the electronic component mounting machine when the device pallet is mounted on the device pallet. The release lever is mounted on the rear of the main body via a pivot shaft and is rotated upward to release the engagement by the clamper. The release lever also has a hook portion formed on the end opposite to the pivot shaft and extending to the rear of the main body, for an operator to grip with their finger to rotate the release lever.

[0007] Furthermore, this specification discloses a technical concept in which, in claim 6 of the claims initially attached to the application, "the feeder described in claim 5" is changed to "the feeder described in any one of claims 1 to 5." Also, this specification discloses a technical concept in which, in claim 7 of the claims initially attached to the application, "the feeder described in claim 6" is changed to "the feeder described in any one of claims 1 to 6." [Effects of the Invention]

[0008] According to the feeder described above, the release lever, which is rotated upward to disengage the clamp, has a hook portion formed therein for the operator to grip with their finger to rotate the release lever. Therefore, the operator's operability is improved when removing the feeder from the device pallet. [Brief explanation of the drawing]

[0009] [Figure 1] This is a plan view showing an example configuration of an electronic component mounting machine. [Figure 2] A side view showing an example of a feeder mounted on a device pallet. [Figure 3] This is a plan view showing an example of a carrier tape. [Figure 4]Figure 3 is a cross-sectional view of the carrier tape. [Figure 5] This is a reference model, a magnified view of the feeder shown in Figure 2. [Figure 6] This is a side view showing an example of the state of the clamper and release lever in Figure 5, which is a reference configuration. [Figure 7] This is a side view showing an example of a reference configuration in which the feeder is removable. [Figure 8] This is a reference model, a magnified view of the feeder shown in Figure 7. [Figure 9] This is a side view showing an example of the state of the clamper and release lever in Figure 8, which is a reference configuration. [Figure 10] This is a perspective view showing the device palette in Figure 7, which is a reference configuration. [Figure 11] This is a side view showing an example of a reference configuration, specifically the state in which the feeder in Figure 7 is pulled out. [Figure 12] This is a side view showing an example of a feeder according to an embodiment. [Figure 13] This is a side view showing an example of the state of the clamper and release lever in Figure 12, relating to an embodiment. [Figure 14] This is a side view showing another example of the release lever in Figure 13, relating to an embodiment. [Figure 15] This is a side view showing another example of the release lever in Figure 13, relating to an embodiment. [Figure 16] This is a side view showing an example of a state in which the feeder is removable according to the embodiment. [Figure 17] This is a partial enlargement view of the feeder shown in Figure 16, relating to an embodiment. [Figure 18] This is a side view showing an example of the state of the clamper and release lever in Figure 17, relating to an embodiment. [Figure 19] This is a perspective view showing the device pallet of Figure 16, relating to an embodiment. [Modes for carrying out the invention]

[0010] 1. Embodiment 1-1. Configuration Example of Electronic Component Mounter 10 Feeder 40 can be used in electronic component mounter 10. Electronic component mounter 10 mounts electronic component 91 on substrate 90. As shown in FIG. 1, electronic component mounter 10 includes substrate conveyor 11, device pallet 12, component transfer device 13, component camera 14, substrate camera 15, and control device 16.

[0011] Substrate conveyor 11 is constituted by, for example, a belt conveyor or the like, and conveys substrate 90 in the conveyance direction (X-axis direction). Substrate 90 is a circuit board on which an electronic circuit, an electric circuit, a magnetic circuit, or the like is formed. Substrate conveyor 11 carries substrate 90 into the interior of electronic component mounter 10 and positions substrate 90 at a predetermined position inside the machine. After the mounting process of a plurality of electronic components 91 by electronic component mounter 10 is completed, substrate conveyor 11 carries substrate 90 out of the interior of electronic component mounter 10.

[0012] Device pallet 12 supplies electronic component 91 to be mounted on substrate 90. As shown in FIG. 1, device pallet 12 includes a plurality of feeders 40 provided along the conveyance direction (X-axis direction) of substrate 90. Each of the plurality of feeders 40 is equipped with a reel. A carrier tape 80 in which electronic component 91 is accommodated is wound around the reel. Feeder 40 pitch-feeds carrier tape 80 and supplies electronic component 91 in a manner that enables it to be picked up at supply section PP1 located in front of feeder 40 (on the side of arrow TC1 direction). Also, device pallet 12 can supply relatively large electronic components (for example, lead components, etc.) compared to chip components or the like in a state of being arranged on a tray.

[0013] The component transfer device 13 comprises a head drive device 13a and a mobile table 13b. The head drive device 13a is configured to move the mobile table 13b in the X-axis direction and the Y-axis direction (directions perpendicular to the X-axis direction in the horizontal plane) by a linear motion mechanism. A mounting head 20 is detachably (replaceable) attached to the mobile table 13b by a clamping member. The mounting head 20 uses at least one holding member 30 to pick up and hold electronic components 91 supplied from the device pallet 12 and mounts the electronic components 91 onto the substrate 90 positioned by the substrate transport device 11. The holding member 30 can be, for example, a suction nozzle, a chuck, or the like.

[0014] The component camera 14 and the substrate camera 15 can use known imaging devices. The component camera 14 is fixed to the base of the electronic component mounting machine 10 so that its optical axis is upward in the vertical direction (Z-axis direction perpendicular to the X-axis and Y-axis directions). The component camera 14 can image electronic components 91 and the like held by the holding member 30 from below. The substrate camera 15 is mounted on the movable table 13b of the component transfer device 13 so that its optical axis is downward in the vertical direction (Z-axis direction). The substrate camera 15 can image the substrate 90 and the like from above.

[0015] The component camera 14 and the circuit board camera 15 take images based on control signals sent from the control device 16. The image data of the images taken by the component camera 14 and the circuit board camera 15 is transmitted to the control device 16. The control device 16 is equipped with a known arithmetic unit and memory device, and a control circuit is configured within it. The control device 16 receives information and image data output from various sensors provided on the electronic component mounting machine 10. The control device 16 sends control signals to each device based on a control program and predetermined mounting conditions set in advance.

[0016] For example, the control device 16 causes the substrate camera 15 to image the substrate 90 positioned by the substrate transport device 11. The control device 16 processes the image captured by the substrate camera 15 to recognize the positioning state of the substrate 90. The control device 16 also causes the holding member 30 to pick up and hold the electronic components 91 supplied from the device pallet 12, and causes the component camera 14 to image the electronic components 91 held by the holding member 30. The control device 16 processes the image captured by the component camera 14 to recognize the holding posture of the electronic components 91.

[0017] The control device 16 moves the holding member 30 upwards to the planned mounting position, which is predetermined by a control program or the like. The control device 16 also corrects the planned mounting position based on the positioning state of the substrate 90, the holding posture of the electronic component 91, etc., to set the actual mounting position for the electronic component 91. The planned mounting position and the mounting position include rotation angles in addition to position (X-axis coordinates and Y-axis coordinates).

[0018] The control device 16 corrects the target position (X-axis coordinates and Y-axis coordinates) and rotation angle of the holding member 30 to match the mounting position. The control device 16 lowers the holding member 30 at the corrected rotation angle at the corrected target position to mount the electronic component 91 onto the substrate 90. The control device 16 repeats the above pick-and-place cycle to perform a mounting process in which multiple electronic components 91 are mounted onto the substrate 90.

[0019] 1-2. Example configuration of carrier tape 80 and feeder 40 As shown in Figures 3 and 4, for example, the carrier tape 80 of the embodiment comprises a base tape 81, a cover tape 82, and a bottom tape 83. The base tape 81 is the base of the carrier tape 80 and is provided with a plurality of cavities 81a and a plurality of feed holes 81b.

[0020] Each of the multiple cavities 81a houses an electronic component 91. The multiple cavities 81a are provided at predetermined intervals in the longitudinal direction (transport direction (arrow TC direction)) of the carrier tape 80 in the center of the base tape 81 in the width direction (arrow TW direction). The multiple feed holes 81b are used when transporting the carrier tape 80 in the transport direction (arrow TC direction). The multiple feed holes 81b are provided at predetermined pitch intervals in the longitudinal direction (transport direction (arrow TC direction)) of the carrier tape 80 in the width direction (arrow TW direction) of the base tape 81.

[0021] The cover tape 82 closes the opening of the cavity 81a. The cover tape 82 is attached, for example, to the upper surface of both ends of the base tape 81 in the width direction (arrow TW direction) with adhesive. The bottom tape 83 is attached, for example, to the lower surface of the base tape 81 with adhesive to prevent the electronic components 91 housed in the cavity 81a from falling out. The carrier tape 80 may be an embossed tape, paper tape, etc., in which the base tape 81 and bottom tape 83 are formed integrally.

[0022] The feeder 40 transports the carrier tape 80 containing the electronic components 91 and supplies the electronic components 91 from the supply unit PP1 at the front (direction of arrow TC1) to the electronic component mounting machine 10. As shown in Figure 2, in this specification, the downstream side of the transport direction (direction of arrow TC) of the carrier tape 80 is considered the front (direction of arrow TC1). Also, the upstream side of the transport direction (direction of arrow TC) of the carrier tape 80 is considered the rear (direction of arrow TC2). The feeder 40 only needs to be able to supply the electronic components 91 as described above, and can take various forms.

[0023] As shown in Figure 2, for example, the feeder 40 may comprise a main body 41, a feeding unit 42, a support unit 43, and a tape guide 50. The main body 41 is formed in a flat box shape, and its upper vertical (Z-axis direction) portion is provided with a transport path 41a for the carrier tape 80. The transport path 41a is formed in a groove shape and can transport the carrier tape 80. The feeding unit 42 transports the carrier tape 80 along the transport path 41a toward the supply unit PP1. Specifically, the feeding unit 42 comprises a sprocket 42a and a drive unit. The sprocket 42a has multiple teeth that can engage with the feed holes 81b of the carrier tape 80 and is rotatably supported by the main body 41.

[0024] The sprocket 42a is positioned so that its teeth protrude slightly upward from the upper surface of the transport path 41a. The drive unit rotates the sprocket 42a. The drive unit only needs to be able to rotate the sprocket 42a; for example, known drive units such as stepping motors and servo motors can be used. The drive unit is connected to the sprocket 42a via a reduction gear. The feeder control device that controls the feeder 40 drives the drive unit to rotate the sprocket 42a and feed the carrier tape 80 by pitch.

[0025] The support portion 43 and the tape guide 50 are provided in the area including the supply portion PP1 in front of the carrier tape 80 (towards the direction of arrow TC1). The support portion 43 is formed, for example, in a plate shape and can support the carrier tape 80 from below in the vertical direction (Z-axis direction). The tape guide 50 is formed, for example, in a substantially U-shaped cross-section and can hold down the carrier tape 80 from above in the vertical direction (Z-axis direction).

[0026] Specifically, the support portion 43 is biased upward in the vertical direction (Z-axis direction) relative to the main body portion 41. The tape guide 50 is also biased downward in the vertical direction (Z-axis direction) relative to the main body portion 41. As a result, the carrier tape 80 is pushed upward in the vertical direction (Z-axis direction) by the support portion 43 and pushed downward in the vertical direction (Z-axis direction) by the tape guide 50.

[0027] Therefore, for example, even if the thickness of the carrier tape 80 changes, the tape guide 50 can still press against the upper surface of the carrier tape 80. As a result, the lifting of the carrier tape 80 is suppressed, and the engagement between the feed hole 81b of the carrier tape 80 and the sprocket 42a is more easily maintained. The support portion 43 is fixed to the main body portion 41, and the tape guide 50 is detachably attached to the main body portion 41.

[0028] 1-3. Challenges in removing the feeder 40 from the device pallet 12 As shown in Figure 5, the feeder 40 in the reference configuration comprises a main body 41, a clamper 60, and a release lever 70. The clamper 60 is provided on the main body 41 and engages with the engaged portion 12a of the device pallet 12 of the electronic component mounting machine 10 when the device pallet 12 is mounted on it. Details of the clamper 60 and the engaged portion 12a are described later.

[0029] The release lever 70 is attached to the rear of the main body 41 (towards the direction of arrow TC2) via a pivot shaft 40s and is rotated upward to release the engagement by the clamper 60. As shown in Figures 5 and 6, the release lever 70 of the reference embodiment comprises a main body 70a and an operating part 70b. The main body 70a is provided so as to clamp the rear end (towards the direction of arrow TC2) of the main body 41 of the feeder 40 from both sides in the width direction (towards arrow TW), and is rotatable with the pivot shaft 40s as the pivot point.

[0030] The operating section 70b is located on the main body 70a on the side opposite to the pivot shaft 40s and at the end extending towards the rear of the main body 41 (towards the direction of arrow TC2). It is the part operated by the operator to rotate the release lever 70. As shown in Figures 5 and 6, for example, the operating section 70b is formed in a plate shape and can be pressed with a finger by the operator to rotate the release lever 70. Specifically, the operator can, for example, use the index finger of one hand to press the projection 41t of the main body 41 of the feeder 40 near the release lever 70 shown in Figure 5, and use the thumb of the same hand to push up the operating section 70b and rotate the release lever 70 upward.

[0031] The clamper 60 is mounted on the engaged portion 12a so as to be able to move back and forth. It moves toward the engaged portion 12a when the removal of the feeder 40 is restricted, and retracts from the engaged portion 12a when the removal of the feeder 40 is permitted. As shown in Figure 6, for example, the release lever 70 is connected to the clamper 60 by a wire 40w via an elastic member 40v that is biased toward the engaged portion 12a. The elastic member 40v can be, for example, a spring, and the wire 40w is slidably supported by a pulley 40p.

[0032] As shown in Figures 5 and 6, the clamper 60 advances toward the engaged portion 12a due to the elastic force of the elastic member 40v when the release lever 70 is not rotated by the operator. In this case, the operator cannot remove the feeder 40 from the device pallet 12. In contrast, as shown in Figures 7 to 9, when the release lever 70 is rotated upward by the operator, the wire 40w is pulled against the elastic force of the elastic member 40v, and the clamper 60 retracts from the engaged portion 12a. In this case, the operator can remove the feeder 40 from the device pallet 12.

[0033] As shown in Figure 11, an operator can, for example, press down on the projection 41t of the main body 41 of the feeder 40 with their index finger, push up the operating part 70b with their thumb, rotate the release lever 70 upward, and then pull out the feeder 40 horizontally toward the operator. However, as shown in Figure 10, multiple feeders 40 are mounted on the device pallet 12. When multiple feeders 40 are close together, the feeders 40 adjacent to the feeder 40 to be removed may get in the way, making it difficult for the operator to perform the operation described above. Therefore, there is a need to improve the operator's operability when removing a feeder 40 mounted on the device pallet 12 of the electronic component mounting machine 10 from the device pallet 12.

[0034] 1-4. Release lever 70 of the embodiment As shown in Figure 12, the feeder 40 of this embodiment, like the reference embodiment, comprises a main body 41, a clamper 60, and a release lever 70. The clamper 60 is provided on the main body 41 and engages with the engaged portion 12a of the device pallet 12 of the electronic component mounting machine 10 when the device pallet 12 is mounted on it. The clamper 60 only needs to be able to engage with the engaged portion 12a, and the clamper 60, which is the engaging portion that engages with the engaged portion 12a, and the engaged portion 12a can take various forms.

[0035] Similar to the reference embodiment, for example, the clamper 60 is provided so as to be able to move back and forth on the engaged portion 12a, and can advance toward the engaged portion 12a when the removal of the feeder 40 is restricted, and retract from the engaged portion 12a when the removal of the feeder 40 is permitted. For example, the engaged portion 12a can be a recess on which the clamper 60 can move back and forth. As shown in Figures 12 to 15, when the clamper 60 advances toward the engaged portion 12a, the worker cannot remove the feeder 40 from the device pallet 12. Conversely, as shown in Figures 16 to 18, when the clamper 60 retracts from the engaged portion 12a, the worker can remove the feeder 40 from the device pallet 12.

[0036] Furthermore, the release lever 70 is attached to the rear of the main body 41 (towards the direction of arrow TC2) via a pivot shaft 40s and is rotated upward to release the engagement by the clamper 60. As shown in Figures 12 to 18, the release lever 70 of this embodiment comprises a main body 70a and a hook portion 70h. Similar to the reference embodiment, the main body 70a is provided so as to clamp the rear end (towards the direction of arrow TC2) of the main body 41 of the feeder 40 from both sides in the width direction (towards arrow TW), and is rotatable with the pivot shaft 40s as the pivot point.

[0037] In this embodiment, the release lever 70 has a hook portion 70h instead of an operating portion 70b. The hook portion 70h is on the opposite side of the pivot axis 40s and is the end portion that extends to the rear of the main body portion 41 (towards the direction of arrow TC2), where the operator places their finger to rotate the release lever 70. The hook portion 70h only needs to be a portion on the main body portion 70a where the operator can place their finger to rotate the release lever 70, and can take various forms.

[0038] For example, as shown in Figure 13, the hook portion 70h may be formed in an arc shape in a side view of the feeder 40. Also, as shown in Figure 14, the hook portion 70h may be formed in an L shape in a side view of the feeder 40. Furthermore, as shown in Figure 15, the hook portion 70h may be formed in an annular shape in a side view of the feeder 40. In any of the above-described configurations, the operator can easily rotate the release lever 70 upward by placing their fingers on it, thereby improving operator operability.

[0039] In any of the embodiments described above, when removing the feeder 40 from the device pallet 12, the operator places their fingers on the hook portion 70h and lifts it upward, causing the release lever 70 to rotate relative to the main body portion 41 and releasing the restriction by the clamper 60. As shown in Figures 13 to 15, for example, similar to the reference embodiment, the release lever 70 is connected to the clamper 60 by a wire 40w via an elastic member 40v that is biased toward the engaged portion 12a. The elastic member 40v can be, for example, a spring member, and the wire 40w is slidably supported by a pulley 40p.

[0040] As shown in Figures 12 to 15, the clamper 60 moves toward the engaged portion 12a by the elastic force of the elastic member 40v when the release lever 70 is not rotated by the operator. In this case, the operator cannot remove the feeder 40 from the device pallet 12. In contrast, as shown in Figures 16 to 18, when the hook portion 70h of the clamper 60 is lifted upward by the operator and the release lever 70 is rotated relative to the main body 41 of the feeder 40, the wire 40w is pulled against the elastic force of the elastic member 40v and the clamper 60 retracts from the engaged portion 12a. In this case, the operator can remove the feeder 40 from the device pallet 12.

[0041] When removing the feeder 40 from the device pallet 12, the operator can hook their finger onto the hook portion 70h and lift it upward, causing the release lever 70 to rotate relative to the main body 41 and releasing the restriction by the clamp 60. Therefore, compared to a reference configuration in which, for example, the operator presses down on the projection 41t of the main body 41 of the feeder 40 with the index finger of one hand and pushes up the operating portion 70b with the thumb of the same hand to rotate the release lever 70 upward, the operator's operability is improved.

[0042] Furthermore, when removing a feeder 40 from the device pallet 12, the worker can place their fingers on the hook portion 70h and lift it upwards. After the restriction by the clamp 60 is released, the worker can pull out the feeder 40 towards themselves while still holding their fingers on the hook portion 70h. Therefore, as shown in Figure 19, even if multiple feeders 40 are mounted on the device pallet 12 and multiple feeders 40 are in close proximity, the worker can easily pull out the desired feeder 40 from the device pallet 12.

[0043] Furthermore, when a reel is attached to the feeder 40, the center of gravity of the feeder 40 tends to shift towards the rear of the feeder 40 (towards the direction of arrow TC2). In this case, the rear of the feeder 40 (towards the direction of arrow TC2) is more likely to come into contact with the top surface of the device pallet 12 than the front (towards the direction of arrow TC1). Therefore, a braking force may be generated when pulling the feeder 40 from the device pallet 12, potentially making it difficult for the operator to pull out the feeder 40.

[0044] The release lever 70 of this embodiment has a hook portion 70h formed thereon. Therefore, when an operator removes the feeder 40 from the device pallet 12, they can place their fingers on the hook portion 70h and lift it upward to release the restriction by the clamp 60. Then, while still holding their fingers on the hook portion 70h, they can pull out the feeder 40 diagonally upward towards the operator (in the direction of arrow AR1 in Figure 17). As a result, the rear side of the feeder 40 (in the direction of arrow TC2) is easier to lift than the front side (in the direction of arrow TC1), reducing the braking force and making it easier for the operator to pull out the feeder 40.

[0045] Furthermore, the feeder 40 may be an auto-loading feeder equipped with a subsequent reel, which transports the carrier tape 80 of the reel, with the tape end inserted into the insertion section, to the supply section PP1 by a feeding mechanism. Since the auto-loading feeder is equipped with a subsequent reel, the center of gravity of the feeder 40 tends to shift more easily to the rear of the feeder 40 (towards the direction of arrow TC2) compared to the feeder 40 of the embodiment. As a result, the above-mentioned braking force is generated when pulling the feeder 40 out of the device pallet 12, which may make it difficult for the operator to pull out the feeder 40.

[0046] Even when the feeder 40 is an auto-loading feeder, a hook portion 70h can be formed on the release lever 70. Therefore, the rear side of the auto-loading feeder (towards the direction of arrow TC2) becomes easier to lift than the front side (towards the direction of arrow TC1), reducing the braking force and making it easier for the worker to pull out the auto-loading feeder. In other words, even when the feeder 40 is an auto-loading feeder, the effects described above can be obtained.

[0047] Furthermore, the matters described herein, including those described in the reference form, may be selected and applied as appropriate. Also, the matters described herein, including those described in the reference form, may be combined as appropriate. Moreover, the matters described herein, including those described in the reference form, may be modified as appropriate.

[0048] 2. An example of the effects of the embodiment According to the feeder 40, the release lever 70, which is rotated upward to release the engagement by the clamper 60, has a hook portion 70h formed therein for the operator to place their finger on in order to rotate the release lever 70. Therefore, the operator's operability is improved when removing the feeder 40 from the device pallet 12. [Explanation of Symbols]

[0049] 10: Electronic component mounting machine, 12: Device pallet, 12a: Engaged part, 40: feeder, 40s: pivot shaft, 40v: elastic member, 40w: wire 41: Main body, 60: Clamper, 70: Release lever, 70h: Hook, 80: Carrier tape, 91: Electronic components, PP1: Supply unit, Arrow TC1 direction: forward, Arrow TC2 direction: backward.

Claims

1. A feeder that transports a carrier tape containing electronic components and supplies the electronic components from a front supply unit to an electronic component mounting machine, The main body and A clamper is provided on the main body and engages with the engaged portion of the device pallet when mounted on the device pallet of the electronic component mounting machine, A release lever is attached to the rear of the main body via a pivot shaft and rotated upward to release the engagement by the clamper, Equipped with, The release lever is a feeder in which a hook portion is formed at the end of the release lever that is on the opposite side of the pivot axis and extends toward the rear of the main body, for the operator to place their finger on in order to rotate the release lever.

2. The feeder according to claim 1, wherein the hook portion is formed in an arc shape when viewed from the side of the feeder.

3. The feeder according to claim 1, wherein the hook portion is formed in an L-shape when viewed from the side of the feeder.

4. The feeder according to claim 1, wherein the hook portion is formed in an annular shape in a side view of the feeder.

5. The feeder according to any one of claims 1 to 4, wherein when removing the feeder from the device pallet, the operator can place their fingers on the hooking portion and lift it upward, causing the release lever to rotate relative to the main body and releasing the restriction by the clamper.

6. The feeder according to claim 5, wherein the clamp is provided so as to be movable forward and backward on the engaged portion, and moves forward on the engaged portion when the removal of the feeder is restricted, and retracts from the engaged portion when the removal of the feeder is permitted.

7. The feeder according to claim 6, wherein the release lever is connected to the clamp by a wire via an elastic member that is biased toward the engaged portion.

8. The feeder according to claim 7, wherein the clamp advances to the engaged portion by the elastic force of the elastic member when the release lever is not rotated by the operator, and when the hook is lifted upward by the operator and the release lever is rotated relative to the main body of the feeder, the wire is pulled against the elastic force of the elastic member and retracts from the engaged portion.

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