Bending center hinge knife

By designing a rotatable bending plate and a locking structure for the bending center hinge cutter, the problem of fixed angle of the existing bending machine cutter head is solved, enabling multi-angle bending and efficient production, and extending the service life of the cutter head.

CN224444186UActive Publication Date: 2026-07-03ANHUI ERSHIDA TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ERSHIDA TECHNOLOGY CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The fixed shape of the cutter head in existing bending machines means that a single cutter head can only achieve a fixed bending angle, requiring frequent cutter head replacements and reducing work efficiency.

Method used

A hinge blade for bending center was designed. By setting a rotatable bending plate and a locking structure on the connecting block, the bending plate can switch between vertical and inclined states to achieve bending at different angles, and the different states can be fixed by locking bolts.

Benefits of technology

This technology enables the production of bent parts of different specifications without the need for frequent cutter head replacements, thereby improving processing efficiency and the lifespan of the cutter head.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a hinge cutter for a bending center, including a connecting rod. A connecting block is fixedly connected to the bottom end of the connecting rod, and a connecting structure is provided at the top of the connecting rod. Bevels are formed on both sides of the connecting block, and a bending plate is rotatably connected to the bottom of the inner wall of the bevel via a rotating shaft. A locking structure is provided on the side wall of the connecting block to fix the bending plate in its vertical or inclined state. This hinge cutter for a bending center, after the two bending plates are rotated to a vertical position, can perform right-angle bends on the workpiece. Furthermore, after the bending plates rotate, the inner surface of the bending plate fits against the inner wall of the bevel, thus changing the bending angle of the workpiece. This facilitates the production of bending parts of different specifications, eliminates the need for frequent cutter head switching, improves bending production efficiency, and is beneficial for bending operations.
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Description

Technical Field

[0001] This utility model relates to the field of bending knife technology, and in particular to a hinge knife for bending center. Background Technology

[0002] Bending machines are key equipment in the metal processing field, mainly used to bend and shape metal sheets. Their core principle is to apply pressure to the sheet through the interaction of the upper and lower dies, causing it to undergo plastic deformation, thereby obtaining a preset angle and shape. The equipment is widely used in manufacturing, aerospace, automotive engineering, building decoration and other fields, and is an indispensable process equipment for sheet metal processing.

[0003] In the existing technology, the shape of the bending machine cutter head is fixed after production. One cutter head can only achieve a fixed angle of bending. Different bending cutter heads need to be changed frequently to complete the corresponding bending, which leads to a serious reduction in work efficiency.

[0004] Therefore, it is necessary to provide a new hinge cutter for the bending center to solve the above-mentioned technical problems. Summary of the Invention

[0005] This utility model provides a hinge cutter for bending center, which solves the technical problem that in the prior art, the shape of the cutter head of the bending machine is fixed after production, and one cutter head can only achieve a fixed angle of bending.

[0006] To solve the above-mentioned technical problems, the present invention provides a hinge knife for a bending center, including a connecting rod, a connecting block fixedly connected to the bottom end of the connecting rod, a connecting structure provided at the top of the connecting rod, bevels on both sides of the connecting block, a bending plate rotatably connected to the bottom of the inner wall of the bevel via a rotating shaft, and a locking structure provided on the side wall of the connecting block for fixing the bending plate in its vertical and inclined states.

[0007] Preferably, the locking structure includes a plurality of locking bolts, which are respectively disposed on both sides of the front end face and the rear end face of the connecting block. The front end face and the rear end face of the bent plate are provided with locking threaded holes adapted to the locking bolts. The front end face and the rear end face of the connecting block are provided with second openings adapted to the locking bolts on both sides. The front end face and the rear end face of the connecting block are provided with first openings adapted to the locking bolts on both sides. The first openings on the same side are located inside the second openings on the same side.

[0008] Preferably, a plurality of reinforcing ribs are fixedly connected between the bottom end of the connecting rod surface and the top of the connecting block.

[0009] Preferably, the connection structure includes a snap-fit ​​block and a snap-fit ​​groove, the snap-fit ​​block is fixedly connected to the top end of the connecting rod, and the snap-fit ​​groove is formed inside the snap-fit ​​block.

[0010] Preferably, the top of the snap-fit ​​block has several mounting threaded holes.

[0011] Preferably, the surfaces of the connecting block, the connecting rod, and the bending plate are all coated with a primer layer, and the surface of the primer layer is coated with an anti-corrosion coating.

[0012] Compared with related technologies, the hinge blade at the bending center provided by this utility model has the following beneficial effects:

[0013] This utility model provides a hinge cutter for a bending center. After two bending plates are rotated to a vertical position, right-angle bending can be performed on the workpiece. After the bending plates are rotated, the inner side of the bending plates fits against the inner wall of the bevel, which can change the bending angle of the workpiece. This facilitates the production of bent parts of different specifications, eliminates the need for frequent cutting head switching, improves bending production efficiency, and is beneficial for bending work. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of the hinge blade for the bending center provided by this utility model;

[0015] Figure 2 for Figure 1 The diagram shows the front structure.

[0016] Figure 3 for Figure 1 The diagram shows a frontal sectional view of the structure.

[0017] Figure 4 for Figure 1 The diagram shows the connection block and primer layer structure.

[0018] The following are the labels in the diagram: 1. Connecting block; 2. Connecting rod; 3. Reinforcing rib; 4. Snap-fit ​​block; 5. Snap-fit ​​groove; 6. Mounting threaded hole; 7. Bevel; 8. Shaft; 9. Bending plate; 10. First through-hole; 11. Second through-hole; 12. Locking bolt; 13. Locking threaded hole; 14. Primer layer; 15. Anti-corrosion coating. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1A schematic diagram of a preferred embodiment of the hinge blade for the bending center provided by this utility model; Figure 2 for Figure 1 The diagram shows the front structure. Figure 3 for Figure 1 The diagram shows a frontal sectional view of the structure. Figure 4 for Figure 1 The diagram shows the connection block and primer layer structure. The hinge blade at the bending center includes a connecting rod 2, with a connecting block 1 fixedly connected to the bottom end of the connecting rod 2. A connecting structure is provided at the top of the connecting rod 2, and bevels 7 are provided on both sides of the connecting block 1.

[0021] The bottom of the inner wall of the bevel 7 is rotatably connected to a bending plate 9 via a pivot 8, and the side wall of the connecting block 1 is provided with a locking structure to fix the bending plate 9 in its vertical and inclined states.

[0022] After the two bending plates 9 are rotated to a vertical position, the bending part can be bent at a right angle. After the bending plates 9 are rotated, the inner side of the bending plates 9 is in contact with the inner wall of the bevel 7, which can change the bending angle of the bending part. This makes it easy to produce bending parts of different specifications without frequent switching of the cutting head, improves the bending production efficiency, and is beneficial to bending work.

[0023] The locking structure includes several locking bolts 12, which are respectively located on both sides of the front and rear faces of the connecting block 1. The front and rear faces of the bent plate 9 are provided with locking threaded holes 13 that are compatible with the locking bolts 12.

[0024] The front and rear faces of the connecting block 1 are provided with second openings 11 that are adapted to the locking bolts 12. The front and rear faces of the connecting block 1 are provided with first openings 10 that are adapted to the locking bolts 12. The first openings 10 on the same side are located inside the second openings 11 on the same side.

[0025] After the locking bolt 12 passes through the second port 11 and is threaded into the locking threaded hole 13, the vertical state of the bent plate 9 can be locked and fixed. After the bent plate 9 is rotated to fit against the inner wall of the bevel 7, the locking threaded hole 13 can be moved to the corresponding position of the first port 10. After the locking bolt 12 passes through the first port 10 and is threaded into the locking threaded hole 13, the inclined state of the bent plate 9 can be locked and fixed.

[0026] When the bending plate 9 is tilted, the bottom is bent at the tilt angle due to the matching placement block.

[0027] Several reinforcing ribs 3 are fixedly connected between the bottom end of the connecting rod 2 and the top of the connecting block 1. The multiple reinforcing ribs 3 strengthen the connection between the connecting block 1 and the connecting rod 2, and extend the service life of the cutter head.

[0028] The connection structure includes a snap-fit ​​block 4 and a snap-fit ​​groove 5. The snap-fit ​​block 4 is fixedly connected to the top of the connecting rod 2, the snap-fit ​​groove 5 is opened inside the snap-fit ​​block 4, and the top of the snap-fit ​​block 4 is provided with several mounting threaded holes 6.

[0029] The snap-fit ​​groove 5 and the mounting threaded hole 6 facilitate the connection and fixation between the external drive device and the snap-fit ​​block 4, thereby allowing the cutter head to be mounted on the drive device for bending operations.

[0030] The surfaces of the connecting block 1, connecting rod 2 and bending plate 9 are all coated with a primer layer 14, and the surface of the primer layer 14 is coated with an anti-corrosion coating 15. The primer layer 14 and the anti-corrosion coating 15 extend the service life of the cutter head.

[0031] The working principle of the hinge blade at the bending center provided by this utility model is as follows:

[0032] After the locking bolt 12 passes through the second port 11 and is threaded into the locking threaded hole 13, the vertical state of the bending plate 9 can be locked and fixed. After the bending plate 9 rotates to fit against the inner wall of the bevel 7, the locking threaded hole 13 can be moved to the corresponding position of the first port 10. After the locking bolt 12 passes through the first port 10 and is threaded into the locking threaded hole 13, the inclined state of the bending plate 9 can be locked and fixed. After the two bending plates 9 rotate to the vertical state, the bending part can be bent at a right angle. After the bending plate 9 rotates, the inner side of the bending plate 9 fits against the inner wall of the bevel 7, which can change the bending angle of the bending part, making it convenient to produce bending parts of different specifications.

[0033] Compared with related technologies, the hinge blade at the bending center provided by this utility model has the following beneficial effects:

[0034] This utility model provides a hinge cutter for a bending center. After the two bending plates 9 are rotated to a vertical position, they can bend the workpiece at a right angle. After the bending plates 9 are rotated, the inner side of the bending plates 9 is in contact with the inner wall of the bevel 7, which can change the bending angle of the workpiece. This facilitates the production of bent parts of different specifications, eliminates the need for frequent cutting head switching, improves bending production efficiency, and is beneficial for bending work.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hinge knife with a folding center comprising a connecting rod (2), characterized in that, The bottom end of the connecting rod (2) is fixedly connected to a connecting block (1), the top of the connecting rod (2) is provided with a connecting structure, and both sides of the connecting block (1) are provided with bevels (7). The bottom of the inner wall of the bevel (7) is rotatably connected to a bending plate (9) through a rotating shaft (8). The side wall of the connecting block (1) is provided with a locking structure to fix the vertical and inclined states of the bending plate (9).

2. The hinge cutter at the bending center according to claim 1, characterized in that, The locking structure includes a plurality of locking bolts (12), which are respectively disposed on both sides of the front end face and the rear end face of the connecting block (1). The front end face and the rear end face of the bending plate (9) are provided with locking threaded holes (13) that are adapted to the locking bolts (12). The front end face and the rear end face of the connecting block (1) are provided with second through-holes (11) that are adapted to the locking bolts (12) on both sides. The front end face and the rear end face of the connecting block (1) are provided with first through-holes (10) that are adapted to the locking bolts (12) on both sides. The first through-holes (10) on the same side are located inside the second through-holes (11) on the same side.

3. The hinge cutter at the bending center according to claim 1, characterized in that, Several reinforcing ribs (3) are fixedly connected between the bottom end of the surface of the connecting rod (2) and the top of the connecting block (1).

4. The hinge cutter at the bending center according to claim 1, characterized in that, The connection structure includes a snap-fit ​​block (4) and a snap-fit ​​groove (5). The snap-fit ​​block (4) is fixedly connected to the top of the connecting rod (2), and the snap-fit ​​groove (5) is opened inside the snap-fit ​​block (4).

5. The hinge cutter at the bending center according to claim 4, characterized in that, The top of the snap-fit ​​block (4) has several mounting threaded holes (6).

6. The hinge cutter at the bending center according to claim 1, characterized in that, The surfaces of the connecting block (1), the connecting rod (2) and the bending plate (9) are all coated with a primer layer (14), and the surface of the primer layer (14) is coated with an anti-corrosion coating (15).