Feeding structure and punching machine feeding structure

By designing a supporting board, limited rack, promoting board, driving mechanism, resetting rack, and the feeding structure of the promotion department, the existing material delivery structure occurs between the promotion board and the material. Realize the effect of lower noise and less wear.

CN222389046UActive Publication Date: 2025-01-24HUBEI MINSHENGLI PRECISION TECH CO LTD
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Patent Information

Application Number
CN202421023943.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2025-01-24
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

The existing feeding structure friction occurs between the material to be pushed when the push plate moves backward, resulting in noise and wear, and the use effect is poor.

Method used

Designed a material structure, including support plates, limited racks, promoting boards, driving mechanisms, resetting racks, and promoting ministry. Promote efficiency.

Benefits of technology

It effectively reduces the friction between the pushing plate and the material, reduces noise and wear, and improves the use effect of the feeding structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a feeding structure which comprises a supporting plate, limiting plates are arranged at the tops of the two sides of the supporting plate, a movable groove is formed in the top of the supporting plate, and a movable opening penetrating through the supporting plate is formed in the bottom of the movable groove. The four limiting frames are arranged on the top of the supporting plate, and passing openings are formed in the bottoms of the two limiting frames located on the downstream side. The pushing plate is movably located in the movable groove, a rotating opening is formed in the middle of the downstream end of the pushing plate, and a termination part is arranged at the top of the rotating opening; the driving mechanism is used for driving the supporting plate to reciprocate in the movable groove; the reset frame is in a U shape with an upward opening, and a reset piece which is continuously in a compressed state is arranged in the middle of the reset frame. Hinge arms are arranged on the two sides of the pushing part and rotationally connected with the inner wall of the passing opening, and the lower side of the downstream end of the pushing part is connected with the top of the reset piece. The feeding structure provided by the utility model is better in use effect.
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Description

Technical Field

[0001] The utility model belongs to the technical field of material feeding and relates to a material feeding structure and a punching machine material feeding structure. Background Art

[0002] Feeding, as the name implies, is the transportation of materials to certain processing equipment. For example, in the production of friction plates and in the production process of various stamping products, the sheet or plate-shaped materials are first stacked somewhere, and then the feeding structure is used to push the materials to the processing outlet piece by piece, and then the corresponding processing is carried out at the appropriate position, such as grinding and gluing of friction plates, or stamping of materials.

[0003] At present, the conventional feeding structure on the market mainly includes a support plate at the bottom, a limit frame on the top of the support plate for limiting a stack of materials, and a reciprocating push plate. The push plate reciprocates under the drive of a cylinder, etc., and each time it is pushed forward, the bottom material can be pushed out of the limit frame (usually the bottom of the limit frame has an opening that can only allow one material to pass through), so that the purpose of automatic feeding can be achieved; however, when the push plate moves back, friction will occur between it and the material to be pushed, which is not only easy to generate noise, but also easy to cause wear of the push plate and / or the material, resulting in poor use effect. Utility Model Content

[0004] The utility model aims to provide a feeding structure and a punch feeding structure, aiming to solve the problem of poor use effect.

[0005] In order to solve the above technical problems, the utility model provides a feeding structure, comprising:

[0006] A support plate, wherein the support plate is in a horizontal strip shape, and limit plates are arranged on the tops of both sides of the support plate, a movable groove is opened on the top of the support plate, and a movable opening penetrating the support plate is opened at the bottom of the movable groove, and the width of the movable opening is smaller than the width of the movable groove, and the length directions of the movable groove and the movable opening are both in the same direction as the length direction of the support plate;

[0007] A limiting frame, wherein four limiting frames are arranged on the top of the supporting plate, and the cross-sections of the limiting frames are all L-shaped, and a rectangular accommodating space is formed between the four limiting frames, and a plurality of vertically stacked plates to be pushed are arranged in the accommodating space, and a through hole is opened at the bottom of the two limiting frames located on the downstream side, and the through hole can pass through the plates to be pushed at the bottom;

[0008] A push plate, the push plate is movably located in the movable groove, a rotation opening is opened in the middle of the downstream end of the push plate, and a termination portion is arranged at the top of the rotation opening;

[0009] A driving mechanism, the driving mechanism is used to drive the support plate to reciprocate in the movable groove;

[0010] A reset frame, the reset frame is in a U-shape with an opening facing upward, the top of the reset frame is connected to the downstream end of the push plate, the reset frame is movably located in the movable opening, and a reset member which is continuously in a compressed state is arranged in the middle of the reset frame;

[0011] An inclined push portion, with hinged arms disposed on both sides of the push portion, the hinged arms being rotatably connected to the inner wall of the through opening, the lower side of the downstream end of the push portion being connected to the top of the reset member, and the push portion including a first state and a second state;

[0012] When the pushing plate is in the first state, the downstream end of the top of the pushing portion abuts against the upstream end of the plate to be pushed at the bottom, and the upper side of the pushing plate abuts against the lower side of the terminating portion;

[0013] When the pushing plate is in the second state, the upper side of the pushing plate and the lower side of the terminating portion are in a separated state, and the top of the pushing portion is at the same height as the top of the supporting plate.

[0014] The utility model is further configured that a drag reduction column is rotatably provided on the top of the pushing portion, and when the pushing plate is in the second state, the drag reduction column movably contacts the bottom of a plate to be pushed.

[0015] The utility model is further configured such that the top of the pushing plate is lower than the top of the supporting plate.

[0016] The utility model is further configured such that the driving mechanism includes a driving cylinder, the output shaft of the driving cylinder is connected to the upstream end of the pushing plate, stabilizing parts are provided on both sides of the bottom of the pushing plate, a stabilizing groove matching with the stabilizing part is provided on the support plate, and the stabilizing part is movably fitted to the inner wall of the stabilizing groove.

[0017] The utility model is further configured such that a U-shaped auxiliary frame is provided on the lower side of the support plate, both ends of the auxiliary frame are connected to the bottom of the support plate, and when the push plate is in the upstream end position, the upper side of the push portion abuts against the middle of the auxiliary frame.

[0018] The utility model is further configured that an auxiliary cylinder is rotatably arranged at the middle of the auxiliary frame.

[0019] The utility model is further configured that a circular arc-shaped transition portion is provided at the bottom of the pushing portion, and an opening of the transition portion faces a direction away from the auxiliary frame.

[0020] The utility model is further configured to include a temporary support plate, the width of which is smaller than the distance between two adjacent limit frames, and a plurality of escape columns are rotatably provided on the top and bottom of the temporary support plate, and the length direction of the escape column is perpendicular to the length direction of the temporary support plate.

[0021] The utility model is further configured that a U-shaped stabilizing member is provided at one end of the temporary support plate, the opening of the stabilizing member faces a direction away from the temporary support plate, and a ring-shaped operating portion is provided in the middle of the stabilizing member;

[0022] Guide plates are vertically arranged on the outer sides of two adjacent limit frames, and both outer sides of the stabilizing member are movably in contact with the inner sides of the guide plates.

[0023] The utility model also provides a punch loading structure, comprising a loading structure as described in any of the above items and an S-shaped transition track, the cross-section of the transition track is the same as the cross-section shape of the support plate and the limit plate, the top of the transition track is connected to the downstream end of the support plate, and the bottom is tangent to the horizontal plane.

[0024] Compared with the prior art, the utility model provides a feeding structure, when feeding, a stack of plates to be pushed is first placed in the accommodating space, and the four corners of the plates to be pushed are respectively abutted against the inner sides of the four limit frames; then the driving mechanism drives the pushing plate to move downstream, at this time, under the elastic force of the reset member, the upper side of the pushing portion is abutted against the lower side of the terminating plate, and the top of the pushing portion is at the highest height; in this way, the pushing portion can abut against the upstream end of the lowest plate to be pushed and drive the plate to be pushed downstream to move; wherein in this pushing process, the upper plate to be pushed is limited by the two limit frames on the downstream side and cannot move, while the lowest plate to be pushed can continue to move downstream after passing through the through port; when the plate to be pushed is pushed to the appropriate position, the driving mechanism drives the pushing plate to move back, and when the upstream side of the pushing portion abuts against the plate to be pushed which is at the bottom at this time, the plate to be pushed drives the pushing portion to rotate downward, and enables the pushing portion to pass through the bottom of the plate to be pushed; wherein the pushing portion cannot drive the plate to be pushed to move upstream. After the pushing portion passes over the plate to be pushed, the pushing portion rotates upward under the elastic force of the reset member until the pushing portion contacts the lower side of the terminating portion, so that the plate to be pushed can be pushed again.

[0025] When the pushing part pushes the plate to be pushed to move, the end part can limit the pushing part, so that the pushing part can stably push the plate to be pushed; secondly, the pushing part can generate a smaller force between the plate to be pushed and the pushing part when moving back, which not only reduces the noise, but also reduces the wear of the plate to be pushed and the pushing part, and secondly, the power requirements of the driving mechanism are also lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of a structure of an embodiment of a feeding structure of the utility model. Figure 1 ;

[0027] Figure 2 yes Figure 1 A magnified view of part A;

[0028] Figure 3 yes Figure 1 A magnified view of part B;

[0029] Figure 4 This is a schematic diagram of a structure of an embodiment of a feeding structure of the utility model. Figure 2 ;

[0030] Figure 5 yes Figure 4 Enlarged view of part C;

[0031] Figure 6 It is a cross-sectional view of an embodiment of a feeding structure of the utility model;

[0032] Figure 7 yes Figure 6 A magnified view of part D in the middle;

[0033] Figure 8 yes Figure 6 Enlarged view of part E in the middle;

[0034] Fig. 9 It is a schematic diagram of an embodiment of a push plate in a feeding structure of the utility model;

[0035] Fig.10 It is a schematic diagram of an embodiment of a temporary support plate in a feeding structure of the utility model.

[0036] Among them, 1. support plate; 2. limit plate; 3. movable groove; 4. movable opening; 5. limit frame; 6. plate to be pushed; 7. through opening; 8. push plate; 9. rotation opening; 10. termination part; 11. reset frame; 11a, reset part; 12. push part; 13. drag reduction column; 14. drive cylinder; 15. stabilizing part; 15a, stabilizing groove; 16. auxiliary frame; 17. auxiliary cylinder; 18. transition part; 19. temporary support plate; 20. escape column; 21. stabilizing part; 22. operating part; 23. guide plate; 24. transition track. DETAILED DESCRIPTION

[0037] The following is a further detailed description of a feeding structure and a punch feeding structure proposed by the utility model in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. The same or similar reference numerals in the accompanying drawings represent the same or similar parts.

[0038] A feeding structure, such as Figures 1 to 10 As shown, including:

[0039] A support plate 1, wherein the support plate 1 is in a horizontal strip shape, and limit plates 2 are arranged on the tops of both sides of the support plate 1, and a movable groove 3 is opened on the top of the support plate 1, and a movable opening 4 is opened at the bottom of the movable groove 3 and passes through the support plate 1, and the width of the movable opening 4 is smaller than the width of the movable groove 3, and the length directions of the movable groove 3 and the movable opening 4 are in the same direction as the length direction of the support plate 1;

[0040] A limiting frame 5, wherein four limiting frames 5 are arranged on the top of the support plate 1, and the cross-sections of the limiting frames 5 are all L-shaped, and a rectangular accommodating space is formed between the four limiting frames 5, and a plurality of vertically stacked plates 6 to be pushed are arranged in the accommodating space, and a through hole 7 is opened at the bottom of the two limiting frames 5 located on the downstream side, and the through hole 7 can pass through the plates 6 to be pushed at the bottom;

[0041] A push plate 8, wherein the push plate 8 is movably located in the movable groove 3, a rotation opening 9 is provided in the middle of the downstream end of the push plate 8, and a stopper 10 is provided at the top of the rotation opening 9;

[0042] A driving mechanism, the driving mechanism is used to drive the support plate 1 to reciprocate in the movable groove 3;

[0043] A reset frame 11, the reset frame 11 is in a U-shape with an opening facing upward, the top of the reset frame 11 is connected to the downstream end of the push plate 8, the reset frame 11 is movably located in the movable opening 4, and a reset member 11a which is continuously in a compressed state is provided in the middle of the reset frame 11;

[0044] An inclined push portion 12, with hinged arms disposed on both sides of the push portion 12, the hinged arms being rotatably connected to the inner wall of the through opening 7, the lower side of the downstream end of the push portion 12 being connected to the top of the reset member 11a, and the push portion 12 including a first state and a second state;

[0045] When the pushing plate 8 is in the first state, the downstream end of the top of the pushing portion 12 abuts against the upstream end of the to-be-pushed plate 6 at the bottom, and the upper side of the pushing plate 8 abuts against the lower side of the terminating portion 10;

[0046] When the pushing plate 8 is in the second state, the upper side of the pushing plate 8 and the lower side of the terminating portion 10 are in a separated state, and the top of the pushing portion 12 is at the same height as the top of the supporting plate 1 .

[0047] The top of the pushing portion 12 is rotatably provided with a drag reduction column 13. When the pushing plate 8 is in the second state, the drag reduction column 13 movably contacts the bottom of a to-be-pushed plate 6. The top of the pushing plate 8 is lower than the top of the supporting plate 1.

[0048] The driving mechanism includes a driving cylinder 14, the output shaft of the driving cylinder 14 is connected to the upstream end of the pushing plate 8, and stabilizing parts 15 are provided on both sides of the bottom of the pushing plate 8. A stabilizing groove 15a matching the stabilizing part 15 is opened on the support plate 1, and the stabilizing part 15 is movably fitted to the inner wall of the stabilizing groove 15a.

[0049] A U-shaped auxiliary frame 16 is provided at the lower side of the support plate 1, and both ends of the auxiliary frame 16 are connected to the bottom of the support plate 1. When the push plate 8 is at the upstream end position, the upper side of the push portion 12 abuts against the middle of the auxiliary frame 16. An auxiliary cylinder 17 is rotatably provided at the middle of the auxiliary frame 16.

[0050] A circular arc-shaped transition portion 18 is disposed at the bottom of the pushing portion 12 , and an opening of the transition portion 18 faces a direction away from the auxiliary frame 16 .

[0051] It also includes a temporary support plate 19, the width of which is smaller than the distance between two adjacent limit frames 5, and a plurality of escape columns 20 are rotatably provided at the top and bottom of the temporary support plate 19, and the length direction of the escape columns 20 is perpendicular to the length direction of the temporary support plate 19. A U-shaped stabilizing member 21 is provided at one end of the temporary support plate 19, the opening of the stabilizing member 21 faces away from the temporary support plate 19, and a ring-shaped operating portion 22 is provided in the middle of the stabilizing member 21;

[0052] A guide plate 23 is vertically disposed on the outer sides of two adjacent limit frames 5 , and both outer sides of the stabilizing member 21 are movably in contact with the inner sides of the guide plates 23 .

[0053] The utility model also provides a punch loading structure, comprising a loading structure as described in any of the above items and an S-shaped transition track 24, the cross-section of the transition track 24 is the same as the cross-section shape of the support plate 1 and the limit plate 2, the top of the transition track 24 is connected to the downstream end of the support plate 1, and the bottom is tangent to the horizontal plane.

[0054] The utility model provides a feeding structure, when feeding, firstly put a stack of to-be-pushed plates 6 into the accommodating space, and make the four corners of the to-be-pushed plates 6 respectively contact the inner sides of the four limit frames 5; then the driving mechanism drives the pushing plate 8 to move downstream, at this time, under the elastic force of the reset member 11a, the upper side of the pushing portion 12 is in contact with the lower side of the termination plate, and the top of the pushing portion 12 is at the highest height; in this way, the pushing portion 12 can contact the upstream end of the lowest to-be-pushed plate 6, and drive the to-be-pushed plate 6 to move downstream; wherein During the pushing process, the upper plate 6 to be pushed is limited by the two limiting frames 5 on the downstream side and cannot move, while the lowest plate 6 to be pushed can continue to move downstream after passing through the through port 7; when the plate 6 to be pushed is pushed to a suitable position, the driving mechanism drives the pushing plate 8 to move back, and when the upstream side of the pushing portion 12 hits the plate 6 to be pushed which is at the bottom at this time, the plate 6 to be pushed drives the pushing portion 12 to rotate downward, and enables the pushing portion 12 to pass under the plate 6 to be pushed; wherein the pushing portion 12 cannot drive the plate 6 to be pushed to move upstream. After the pushing portion 12 passes over the plate 6 to be pushed, the pushing portion 12 rotates upward under the elastic force of the reset member 11a until the pushing portion 12 hits the lower side of the termination portion 10, so that the next push of the plate 6 to be pushed can be performed.

[0055] When the pushing portion 12 pushes the material plate 6 to move, the terminating portion 10 can limit the pushing portion 12, so that the pushing portion 12 can stably push the material plate 6; secondly, the pushing portion 12 can generate a smaller force between the pushing portion 12 and the material plate 6 when moving back, which not only reduces the noise, but also reduces the wear of the material plate 6 and the pushing portion 12, and secondly, the power requirements of the driving mechanism are also lower.

[0056] During actual processing, the driving cylinder 14 (preferably a pneumatic cylinder or an electric push rod, etc.) drives the push plate 8 forward to move, wherein during the forward movement of the push plate 8, the bottom and side of the movable groove 3 limit and support the push plate 8, and the stabilizing portion 15 is limited by the stabilizing groove 15a, so that the push plate 8 can move stably. When the push portion 12 moves back, its top is in contact with the bottom of the plate 6 to be pushed through the rotating drag reduction column 13, which further reduces the generation of noise and also reduces the wear of various structures. Secondly, since the top of the push plate 8 is lower than the top of the support plate 1, the support plate 1 will not interact with the plate 6 to be pushed during the entire process, which can improve the stability of the plate 6 to be pushed and reduce the generation of noise.

[0057] During the return process of the pushing portion 12, its upper side will first contact the auxiliary tube 17, and under the action of the auxiliary tube 17, the pushing portion 12 can return to its original position quickly. Even if the elastic force of the reset member 11a is weak and the reset of the pushing portion 12 is slow, the auxiliary tube 17 can also accelerate the reset of the pushing portion 12.

[0058] As the plate 6 to be pushed is used, it is necessary to regularly add a new plate 6 to the top of the plate 6 to be pushed. First, the temporary support plate 19 is placed between two adjacent limit frames 5 to the top of the plate 6 to be pushed. Then the worker places the new plate 6 to be pushed on the temporary support plate 19 from top to bottom. At this time, since the new plate 6 to be pushed can be supported by the temporary support plate 19, the worker's fingers can be more convenient to take it out. After taking it out, the temporary support plate 19 is pulled outward through the operating part 22. When pulling out the temporary support plate 19, the ejection column 20 on its top can facilitate the operation and reduce noise and wear.

[0059] When dragging the temporary support plate 19, the operation part 22 can be used for convenient operation. Secondly, the two sides of the stabilizing member 21 are limited by the guide plates 23, so that the temporary support plate 19 can only move outward in translation without shaking left and right. Since the width of the temporary support plate 19 is smaller than the distance between two adjacent limit frames 5, wear between the temporary support plate 19 and the limit frames 5 can be avoided, and the operation effect is better.

[0060] In actual use, the support plate 1 can directly push the plate 6 to be processed, such as a steel plate, a friction plate, etc., to the downstream for processing, such as grinding, gluing, etc., or the steel plate, etc. can be pushed to the edge of the support plate 1, so that the plates 6 to be pushed slide down one by one, and fall one by one along the transition track 24 to the required position for corresponding processing, such as stamping, and after stamping, the stamped product is removed using an automatic unloading structure (not a structure claimed for protection in this application), so that the structure of this application and the automatic unloading structure can make the stamping stable. When the plate 6 to be pushed moves on the support plate 1 and the transition track 24, both sides of the plate 6 to be pushed have limit plates 2 for limiting, so that the plate 6 to be pushed can move stably downstream.

[0061] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A feeding structure, characterized in that: include: A support plate (1), the support plate (1) is in the shape of a horizontal long strip, limit plates (2) are arranged on the tops of both sides of the support plate (1), a movable groove (3) is provided on the top of the support plate (1), a movable opening (4) penetrating the support plate (1) is provided at the bottom of the movable groove (3), the width of the movable opening (4) is smaller than the width of the movable groove (3), and the length directions of the movable groove (3) and the movable opening (4) are both in the same direction as the length direction of the support plate (1); A limiting frame (5), wherein four limiting frames (5) are arranged on the top of the support plate (1), and the cross-section of the limiting frames (5) is L-shaped. A rectangular accommodating space is formed between the four limiting frames (5), and a plurality of vertically stacked plates (6) to be pushed are arranged in the accommodating space. The bottoms of the two limiting frames (5) located on the downstream side are provided with through openings (7), and the through openings (7) can pass through the plates (6) to be pushed located at the bottom; A push plate (8), the push plate (8) being movably located in the movable groove (3), a rotation opening (9) being provided in the middle of the downstream end of the push plate (8), and a termination portion (10) being provided at the top of the rotation opening (9); A driving mechanism, the driving mechanism being used to drive the support plate (1) to perform reciprocating movement in the movable groove (3); A reset frame (11), the reset frame (11) is in a U-shape with an opening facing upward, the top of the reset frame (11) is connected to the downstream end of the push plate (8), the reset frame (11) is movably located in the movable opening (4), and a reset member (11a) which is continuously in a compressed state is provided in the middle of the reset frame (11); An inclined pushing portion (12), with hinged arms provided on both sides of the pushing portion (12), the hinged arms being rotatably connected to the inner wall of the through opening (7), the lower side of the downstream end of the pushing portion (12) being connected to the top of the reset member (11a), and the pushing portion (12) including a first state and a second state; When the pushing plate (8) is in the first state, the downstream end of the top of the pushing portion (12) abuts against the upstream end of the to-be-pushed plate (6) located at the bottom, and the upper side of the pushing plate (8) abuts against the lower side of the terminating portion (10); When the pushing plate (8) is in the second state, the upper side of the pushing plate (8) and the lower side of the terminating portion (10) are in a separated state, and the top of the pushing portion (12) is at the same height as the top of the supporting plate (1).

2. A feeding structure according to claim 1, characterized in that: A drag reduction column (13) is rotatably provided at the top of the pushing portion (12); when the pushing plate (8) is in the second state, the drag reduction column (13) movably contacts the bottom of a plate (6) to be pushed.

3. A feeding structure according to claim 1 or 2, characterized in that: The top of the pushing plate (8) is lower than the top of the supporting plate (1).

4. A feeding structure according to claim 1, characterized in that: The driving mechanism comprises a driving cylinder (14), the output shaft of the driving cylinder (14) is connected to the upstream end of the pushing plate (8), stabilizing portions (15) are arranged on both sides of the bottom of the pushing plate (8), a stabilizing groove (15a) matching with the stabilizing portion (15) is provided on the supporting plate (1), and the stabilizing portion (15) is movably fitted to the inner wall of the stabilizing groove (15a).

5. A feeding structure according to claim 1, characterized in that: A U-shaped auxiliary frame (16) is provided on the lower side of the support plate (1), both ends of the auxiliary frame (16) are connected to the bottom of the support plate (1), and when the push plate (8) is at the upstream end position, the upper side of the push portion (12) abuts against the middle of the auxiliary frame (16).

6. A feeding structure according to claim 5, characterized in that: An auxiliary cylinder (17) is rotatably arranged in the middle of the auxiliary frame (16).

7. A feeding structure according to claim 5 or 6, characterized in that: A circular arc-shaped transition portion (18) is provided at the bottom of the pushing portion (12), and an opening of the transition portion (18) faces in a direction away from the auxiliary frame (16).

8. A feeding structure according to claim 1, characterized in that: It also includes a temporary support plate (19), the width of which is smaller than the distance between two adjacent limiting frames (5), and a plurality of escape columns (20) are rotatably arranged at the top and bottom of the temporary support plate (19), and the length direction of the escape columns (20) is perpendicular to the length direction of the temporary support plate (19).

9. A feeding structure according to claim 8, characterized in that: A U-shaped stabilizing member (21) is provided at one end of the temporary support plate (19), the opening of the stabilizing member (21) faces in a direction away from the temporary support plate (19), and an annular operating portion (22) is provided in the middle of the stabilizing member (21); Guide plates (23) are vertically arranged on the outer sides of two adjacent limit frames (5), and both outer sides of the stabilizing member (21) are movably in contact with the inner sides of the guide plates (23).

10. A punch loading structure, characterized in that: It comprises a feeding structure as described in any one of claims 1 to 9 and an S-shaped transition track (24), the cross-section of the transition track (24) is the same as the cross-section shape of the support plate (1) and the limit plate (2), the top of the transition track (24) is connected to the downstream end of the support plate (1), and the bottom is tangent to the horizontal plane.