Feeding device

Abstract

The utility model discloses a feeding device, which relates to the technical field of material belt conveying, and comprises a rack, a feeding device and a feeding device, the track is mounted on the rack and used for bearing a material belt, and the material belt is provided with a conveying part; the feeding piece is provided with a first position and a second position relative to the track, the first position and the second position are arranged in the conveying direction of the material belt, and when the feeding piece moves from the first position to the second position, the feeding piece can abut against a conveying part of the material belt so that the material belt can move by a preset distance; the driving part is installed on the machine frame, connected with the feeding part in a driving mode and used for driving the feeding part to move between the first position and the second position in a reciprocating mode. According to the technical scheme, the problems that an existing feeding device is high in use cost and inconvenient to operate can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material belt conveying, in particular to a material feeding device. Background Art

[0002] Traditional small batch feeding stamping production operations use one cutting device to be compatible with a variety of different products. The materials are transported by the material belt. Each time you switch to a different product, you need to replace the corresponding feeding gear. Since the pitch of the corresponding material belt is different for different products, each product's material belt corresponds to a pair of feeding gears.

[0003] When stamping small batches of products, there are multiple small batches of products to be stamped within a certain period of time. At this time, it is necessary to replace different feeding gears many times to correspond to the products. This operation is inconvenient, and the replaced feeding gears need to be properly stored and managed, which increases management costs. Utility Model Content

[0004] The main purpose of the utility model is to provide a feeding device, aiming to solve the problem that the existing feeding devices have high use costs and are inconvenient to operate.

[0005] In order to achieve the above-mentioned purpose, the feeding device proposed by the utility model comprises:

[0006] frame;

[0007] A track, mounted on the frame, for carrying a material belt, wherein the material belt has a conveying portion;

[0008] A feeding member having a first position and a second position relative to the track, wherein the first position and the second position are arranged along the conveying direction of the material belt, and when the feeding member moves from the first position to the second position, the feeding member can push against the conveying portion of the material belt to move the material belt a preset distance; and

[0009] A driving member is installed on the frame and is drivingly connected to the feeding member, so as to drive the feeding member to reciprocate between the first position and the second position.

[0010] In one embodiment, the feeding member uses the same path when reciprocating between the first position and the second position.

[0011] In one embodiment, the feeding member is movably mounted on the frame.

[0012] In one embodiment, the feeding device further includes a guide rail and a slider, wherein the guide rail is fixed to the frame, the slider is slidably disposed on the guide rail, the guide rail extends toward the conveying direction of the material belt, and the feeding member is mounted on the slider.

[0013] In one embodiment, the driving member includes a driving motor and a transmission member, the driving motor is mounted on the frame, and the transmission member connects the output end of the driving motor and the feeding member.

[0014] In one embodiment, the transmission member includes a driven rod fixed to the feeding member, a guide groove provided on the driven rod, and a driving shaft eccentrically connected to the output end of the driving motor, the driving shaft is slidably provided in the guide groove, and the extension direction of the guide groove is perpendicular to the extension direction of the guide rail.

[0015] In one embodiment, the conveying portion is configured as a through hole opened on the material belt.

[0016] In one embodiment, the feeding member includes a first mounting bracket, a first push plate and a first spring, the first push plate is rotatably connected to the first mounting bracket, the first mounting bracket is provided with a first limiting portion, the first spring is provided between the first limiting portion and the first push plate, and the first push plate has a first wedge-shaped portion; when the feeding member is located at the first position, the first push plate inserts the first wedge-shaped portion into the through hole under the action of the first spring, and when the driving member drives the feeding member to move from the first position to the second position, the first wedge-shaped portion can push the through hole to move the material belt a preset distance;

[0017] The feeding device further includes a limiting member, and when the driving member drives the feeding member to move from the second position to the first position, the limiting member is used to limit the material belt to the track.

[0018] In one embodiment, the limiting member includes a second mounting frame, a second push plate and a second spring, the second push plate is rotatably connected to the second mounting frame, the second mounting frame is provided with a second limiting portion, the second spring is provided between the second limiting portion and the second push plate, and the second push plate has a second wedge-shaped portion;

[0019] When the driving member drives the feeding member to the second position, the second wedge-shaped portion corresponds to the through hole, and the second push plate inserts the second wedge-shaped portion into the through hole under the action of the second spring. At this time, when the feeding member moves from the second position to the first position, the second wedge-shaped portion can push the through hole to limit the material strip to the track.

[0020] In one embodiment, the track includes a base body, a cover plate, and an avoidance groove, the material belt is transported between the base body and the cover plate, and the feeding member cooperates with the material belt through the avoidance groove.

[0021] The technical solution of the present invention drives the feeding member to reciprocate between the first position and the second position through a driving member. Since the driving member drives the feeding member to reciprocate between the first position and the second position, the feeding member moves from the first position to the second position multiple times, and can realize the preset distance a of material movement multiple times, so as to achieve the movement of the material belt on the track to realize the purpose of transporting the material, wherein the distance between the first position and the second position can be achieved by adjusting the driving member. At this time, when the present application conveys material belts with different pitches, there is no need to disassemble the feeding member, only the driving member needs to be adjusted. The operation is simple and convenient, and there is no need to store and manage the feeding member, which can effectively reduce the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A structural schematic diagram of an embodiment of a feeding device provided by the utility model;

[0024] Figure 2 for Figure 1 A side schematic diagram of;

[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 for Figure 1 A magnified view of the structure in the middle;

[0027] Figure 5 for Figure 1 Schematic diagram of the structure of the middle material belt;

[0028] Figure 6 A structural schematic diagram of an embodiment of a first position and a second position of a feeding device provided by the utility model;

[0029] Figure 7 This is a structural schematic diagram of another embodiment of the first position and the second position of the feeding device provided by the utility model.

[0030] Description of Figure Numbers:

[0031] 100, rack;

[0032] 200, track; 210, seat body; 211, avoidance groove; 220, cover plate; 230, avoidance groove;

[0033] 300, feeding member; 310, first mounting frame; 311, first position limiting portion; 320, first push plate; 321, first wedge-shaped portion; 330, first spring;

[0034] 400, driving member; 410, driving motor; 420, transmission member; 421, driven rod; 422, guide groove; 423, driving shaft;

[0035] 500, first position;

[0036] 600, second position;

[0037] 700, guide rail;

[0038] 800, slider;

[0039] 900, material belt; 910, conveying unit;

[0040] 10. Limiting member; 11. Second mounting frame; 11a. Second limiting portion; 12. Second push plate; 12a. Second wedge-shaped portion; 13. Second spring.

[0041] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0045] The utility model provides a feeding device.

[0046] See also Figure 1 , Figure 6 In one embodiment of the utility model, the feeding device comprises:

[0047] Rack 100;

[0048] The track 200 is mounted on the frame 100 and is used to carry the material belt 900. The material belt 900 has a conveying portion 910. In the present application, the conveying portion 910 of the material belt 900 may be a protrusion disposed on the material belt 900 or a through hole disposed on the material belt 900.

[0049] The feeding member 300 has a first position 500 and a second position 600 relative to the track 200, the first position 500 and the second position 600 are arranged along the conveying direction of the material belt 900, when the feeding member 300 moves from the first position 500 to the second position 600, the feeding member 300 can push the conveying portion 910 of the material belt 900, so that the material belt 900 moves a preset distance a, and at this time, the material can follow the material belt 900 to move a distance a; and

[0050] The driving member 400 is installed on the frame 100 and is drivingly connected to the feeding member 300, so as to drive the feeding member 300 to reciprocate between the first position 500 and the second position 600. Since the driving member 400 drives the feeding member 300 to reciprocate between the first position 500 and the second position 600, the feeding member 300 moves from the first position 500 to the second position 600 multiple times, and the material can be moved multiple times by a preset distance a, so that the material belt 900 moves on the track 200, so as to achieve the purpose of transporting the material. Specifically, during the transportation of the material, when the driving member 400 drives the feeding member 300 to move from the first position 500 to the second position 600, the feeding member 300 can push the conveying part 910 on the material belt 900, so that the material belt 900 moves a preset distance a; the preset distance a is set according to the pitch on the material belt 900 (see Figure 5 ), similarly, the distance between the first position 500 and the second position 600 is also set according to the pitch on the material belt 900. When the present application is conveying the material belt 900 with different pitches, it is only necessary to adjust the distance between the first position 500 and the second position 600; further, the distance between the first position 500 and the second position 600 can be achieved by adjusting the driving member 400. At this time, when the present application is conveying the material belt 900 with different pitches, there is no need to disassemble the feeding member 300, and only the driving member 400 needs to be adjusted. The operation is simple and convenient, and there is no need to store and manage the feeding member 300, which can effectively reduce the cost of use.

[0051] In one embodiment, reference Figure 6 , the feeding member 300 uses the same path when reciprocating between the first position 500 and the second position 600, such as Figure 6 The path s1 is from the first position 500 to the second position 600, and the path s2 is from the second position 600 to the first position 500. In this way, the time for the feeding member 300 to reciprocate between the first position 500 and the second position 600 can be shortened, and the efficiency of the feeding member 300 to reciprocate between the first position 500 and the second position 600 can be improved. However, the present design is not limited to this. In other embodiments, reference Figure 7 , the paths used by the feeding member 300 when reciprocating between the first position 500 and the second position 600 may be different; specifically, the paths used by the feeding member 300 when reciprocating between the first position 500 and the second position 600 are different through multiple translation mechanisms, such as Figure 7 The s1 path moves from the first position 500 to the second position 600 , and the s2 path moves from the second position 600 to the first position 500 .

[0052] In one embodiment, reference Figure 1 , Figure 4 , the feeding piece 300 is movably mounted on the frame 100; in the present embodiment, when the feeding piece 300 is movably mounted on the frame 100, the feeding device further comprises a guide rail 700 and a slider 800, the guide rail 700 is fixedly mounted on the frame 100, the slider 800 is slidably mounted on the guide rail 700, the guide rail 700 extends toward the conveying direction of the material belt 900, the feeding piece 300 is mounted on the slider 800, further, at this time, when the driving piece 400 drives the feeding piece 300 to reciprocate between the first position 500 and the second position 600, the feeding piece 300 can slide reciprocatingly on the guide rail 700 under the action of the slider 800, so that the feeding piece 300 can be more stable when reciprocating between the first position 500 and the second position 600.

[0053] However, the present design is not limited to this. In other embodiments, the feeding member 300 can also be installed on the driving member 400. When the feeding member 300 is installed on the driving member 400, the driving member 400 can be configured as a linear driving structure, or a multi-axis robotic arm, which drives the feeding member 300 to reciprocate between the first position 500 and the second position 600 through the linear driving structure or the multi-axis robotic arm.

[0054] Further, in this embodiment, when the feeding member 300 slides back and forth on the guide rail 700 under the action of the slider 800, the driving member 400 can adopt the following structure, wherein the driving member 400 includes a driving motor 410 and a transmission member 420, the driving motor 410 is installed on the frame 100, and the transmission member 420 connects the output end of the driving motor 410 and the feeding member 300. At this time, the transmission member 420 is driven by the driving motor 410, and the transmission member 420 enables the feeding member 300 to reciprocate between the first position 500 and the second position 600. In this embodiment In the present invention, the use of the drive motor 410 can make the precision control of the drive member 400 better. At the same time, the drive motor 410 has good programmability, which is convenient for the user to adjust the distance between the first position 500 and the second position 600 according to the rotation angle of the output end of the drive motor 410, so that the present application can meet the conveying of the material belt 900 with different pitches. At the same time, the drive motor 410 is also reliable, has a long service life and a low failure rate during use, reduces downtime and maintenance costs, can further reduce the cost of the present application, and at the same time improves the durability of the present application.

[0055] However, the present design is not limited thereto. In other embodiments, the driving member 400 can be configured as a linear driving structure, which drives the feeding member 300 to move back and forth between the first position 500 and the second position 600. When the distance between the first position 500 and the second position 600 is adjusted, only the stroke of the linear driving structure needs to be adjusted.

[0056] Further, in this embodiment, referring to Figure 4 The transmission member 420 can adopt the following structure, wherein the transmission member 420 includes a driven rod 421 fixed to the feeding member 300, a guide groove 422 provided on the driven rod 421, and a driving shaft 423 eccentrically connected to the output end of the driving motor 410, wherein the driving shaft 423 is slidably provided in the guide groove 422, and the extension direction of the guide groove 422 is perpendicular to the extension direction of the guide rail 700. Specifically, when the output end of the driving motor 410 rotates, the eccentrically provided driving shaft 423 can slide along the guide groove 422, and when the driving shaft 423 slides along the guide groove 422, the driven rod 421 can be driven to move, thereby driving the feeding member 300 to move along the guide rail 700; by driving the motor 410 forward and reversely, the feeding member 300 can be reciprocated along the guide rail 700, thereby enabling the feeding member 300 to reciprocate between the first position 500 and the second position 600. However, the present design is not limited thereto, and in other embodiments, the extension direction of the guide groove 422 and the extension direction of the guide rail 700 can be inclined, as long as the driven rod 421 can drive the feed piece 300 to move along the guide rail 700 when the drive shaft 423 slides along the guide groove 422.

[0057] In one embodiment, reference Figure 5 The conveying portion 910 is configured as a through hole opened on the material belt 900. When the conveying portion 910 is configured as a through hole opened on the material belt 900, when the feeding member 300 moves from the first position 500 to the second position 600, the feeding member 300 pushes the inner wall of the through hole, driving the through hole to move a preset distance a. At this time, the material belt 900 can move the preset distance a.

[0058] In one embodiment, reference Figure 4The feeding member 300 includes a first mounting frame 310, a first push plate 320 and a first spring 330, wherein the first push plate 320 is rotatably connected to the first mounting frame 310, the first mounting frame 310 is provided with a first limiting portion 311, the first spring 330 is provided between the first limiting portion 311 and the first push plate 320, the first push plate 320 has a first wedge-shaped portion 321, wherein the first spring 330 is provided corresponding to the first wedge-shaped portion 321, specifically, the first spring 330 and the first The wedge-shaped portion 321 corresponds to the upper and lower parts, and the first spring 330 is arranged above the first wedge-shaped portion 321; further, the elastic force of the first spring 330 itself can make the first wedge-shaped portion 321 of the first push plate 320 move downward, and at this time, the end of the first push plate 320 away from the first wedge-shaped portion 321 abuts against the first limiting portion 311 of the first mounting frame 310, and when the first spring 330 is compressed, the end of the first push plate 320 away from the first wedge-shaped portion 321 can be separated from the first limiting portion 311 of the first mounting frame 310;

[0059] When the feeding member 300 is located at the first position 500, the first pushing plate 320 inserts the first wedge-shaped portion 321 into the through hole under the action of the first spring 330, and when the driving member 400 drives the feeding member 300 to move from the first position 500 to the second position 600, the first wedge-shaped portion 321 can push the through hole to move the material belt 900 a preset distance; when the feeding member 300 moves from the second position 600 to the first position 500, the first spring 330 can make the first wedge-shaped portion 321 press against the outside of the material belt 900, and the feeding member 300 contacts the outside of the material belt 900 and moves to the next through hole; in the present embodiment, the side of the first wedge-shaped portion 321 facing the conveying direction of the material belt 900 is a vertical plane, and the back side thereof is a vertical plane. The side away from the conveying direction of the material belt 900 is an inclined surface, so that when the first wedge-shaped portion 321 moves from the first position 500 to the second position 600, the vertical plane can push the through hole, so that the material belt 900 moves a preset distance; when the first wedge-shaped portion 321 moves from the second position 600 to the first position 500, the first wedge-shaped portion 321 is conveniently moved out of the through hole under the action of the inclined surface, and when the first wedge-shaped portion 321 moves out of the through hole, the first pushing plate 320 can squeeze the first spring 330, and the elastic force generated by the compression of the spring can make the first wedge-shaped portion 321 press against the surface of the material belt 900 until the first wedge-shaped portion 321 moves to the next through hole, and the first wedge-shaped portion 321 is reinserted into the through hole under the action of the first spring 330, and the vertical plane of the first wedge-shaped portion 321 can drive the through hole to be pushed;

[0060] When the driving member 400 drives the feeding member 300 to move from the second position 600 to the first position 500, the feeding device also includes a limiting member 10, and the limiting member 10 is used to limit the material belt 900 to the track 200. At this time, it can prevent the first push plate 320 from moving from the second position 600 to the first position 500 and driving the material belt 900 to move away from the conveying direction.

[0061] In one embodiment, reference Figure 3 The limiting member 10 includes a second mounting frame 11, a second push plate 12 and a second spring 13, wherein the second push plate 12 is rotatably connected to the second mounting frame 11, the second mounting frame 11 is provided with a second limiting portion 11a, the second spring 13 is provided between the second limiting portion 11a and the second push plate 12, and the second push plate 12 has a second wedge-shaped portion 12a; wherein the second spring 13 is provided corresponding to the second wedge-shaped portion 12a, specifically, the second spring 13 and the second wedge-shaped portion 12a are provided. The second spring 13 is arranged above the second wedge-shaped portion 12a; further, the elastic force of the second spring 13 itself can make the second wedge-shaped portion 12a of the second push plate 12 move downward, and at this time, the end of the second push plate 12 away from the second wedge-shaped portion 12a abuts against the second limiting portion 11a of the second mounting frame 11, and when the second spring 13 is compressed, the end of the second push plate 12 away from the second wedge-shaped portion 12a can be separated from the second limiting portion 11a of the second mounting frame 11;

[0062] When the driving member 400 drives the feeding member 300 to the second position 600, since the distance between the first position 500 and the second position 600 corresponds to the pitch of the material belt 900, the second wedge-shaped portion 12a corresponds to one of the through holes on the material belt 900, and the second push plate 12 inserts the second wedge-shaped portion 12a into the through hole under the action of the second spring 13. At this time, when the feeding member 300 moves from the second position 600 to the first position 500, the second wedge-shaped portion 12a can push the through hole to limit the material belt 900 to the track 200. In this embodiment, the vertical plane of the second wedge-shaped portion 12a is oriented in the transportation direction of the material belt 900. All the while, when the feeding piece 300 moves from the second position 600 to the first position 500, the vertical plane of the second wedge-shaped portion 12a can prevent the material belt 900 from moving away from the conveying direction; further, the inclined surface of the second wedge-shaped portion 12a is arranged toward the conveying direction away from the material belt 900, so that when the feeding piece 300 drives the material belt 900 to move along the conveying direction, the through hole on the material belt 900 can cooperate with the inclined surface to push the second wedge-shaped portion 12a out of the through hole, and at this time, the second wedge-shaped portion 12a can be against the surface of the material belt 900 under the action of the second spring 13, and when the feeding piece 300 is located at the second position 600, the second wedge-shaped portion 12a is inserted into the next through hole under the action of the second spring 13.

[0063] In one embodiment, reference Figure 1 The track 200 includes a base body 210, a cover plate 220 and an avoidance groove 230. The material belt 900 is transported between the base body 210 and the cover plate 220. The base body 210 and the cover plate 220 enable the material belt 900 to move stably in the track 200. The feeding piece 300 cooperates with the material belt 900 through the avoidance groove 230. Specifically, the avoidance groove 230 is opened on the cover plate 220, so that the wedge-shaped part can cooperate with the material belt 900 conveniently; further, the base body 210 is provided with an avoidance groove 211 corresponding to the material belt 900. When the wedge-shaped part passes through the through hole of the material belt 900, the wedge-shaped part can be against the avoidance groove 211, and the wedge-shaped part can move in the avoidance groove 211.

[0064] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A feeding device, characterized in that: include: frame; A track, mounted on the frame, for carrying a material belt, wherein the material belt has a conveying portion; A feeding member having a first position and a second position relative to the track, wherein the first position and the second position are arranged along the conveying direction of the material belt, and when the feeding member moves from the first position to the second position, the feeding member can push against the conveying portion of the material belt to move the material belt a preset distance; as well as A driving member is installed on the frame and is drivingly connected to the feeding member, so as to drive the feeding member to reciprocate between the first position and the second position.

2. The feeding device according to claim 1, characterized in that: The feeding member uses the same path when reciprocating between the first position and the second position.

3. The feeding device according to claim 2, characterized in that: The feeding member is movably mounted on the frame.

4. The feeding device according to claim 3, characterized in that: The feeding device further comprises a guide rail and a slider, wherein the guide rail is fixedly arranged on the frame, the slider is slidably arranged on the guide rail, the guide rail extends toward the conveying direction of the material belt, and the feeding member is mounted on the slider.

5. The feeding device according to claim 4, characterized in that: The driving member comprises a driving motor and a transmission member, wherein the driving motor is mounted on the frame, and the transmission member connects the output end of the driving motor and the feeding member.

6. The feeding device according to claim 5, characterized in that: The transmission member includes a driven rod fixed to the feeding member, a guide groove provided on the driven rod, and a driving shaft eccentrically connected to the output end of the driving motor. The driving shaft is slidably provided in the guide groove, and the extension direction of the guide groove is perpendicular to the extension direction of the guide rail.

7. The feeding device according to claim 3, characterized in that: The conveying portion is configured as a through hole opened on the material belt.

8. The feeding device according to claim 7, characterized in that: The feeding member comprises a first mounting bracket, a first push plate and a first spring, the first push plate is rotatably connected to the first mounting bracket, the first mounting bracket is provided with a first limiting portion, the first spring is provided between the first limiting portion and the first push plate, and the first push plate has a first wedge-shaped portion; when the feeding member is located at the first position, the first push plate inserts the first wedge-shaped portion into the through hole under the action of the first spring, and when the driving member drives the feeding member to move from the first position to the second position, the first wedge-shaped portion can push the through hole to move the material belt for a preset distance; The feeding device further includes a limiting member, and when the driving member drives the feeding member to move from the second position to the first position, the limiting member is used to limit the material belt to the track.

9. The feeding device according to claim 8, characterized in that: The limiting member includes a second mounting frame, a second push plate and a second spring, the second push plate is rotatably connected to the second mounting frame, the second mounting frame is provided with a second limiting portion, the second spring is provided between the second limiting portion and the second push plate, and the second push plate has a second wedge-shaped portion; When the driving member drives the feeding member to the second position, the second wedge-shaped portion corresponds to the through hole, and the second push plate inserts the second wedge-shaped portion into the through hole under the action of the second spring. At this time, when the feeding member moves from the second position to the first position, the second wedge-shaped portion can push the through hole to limit the material strip to the track.

10. The feeding device according to any one of claims 1 to 9, characterized in that: The track includes a seat body, a cover plate and an avoidance groove. The material belt is transported between the seat body and the cover plate. The feeding member cooperates with the material belt through the avoidance groove.

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