Bending hinge knife

Abstract

The utility model relates to a bending hinge knife which comprises a hinge knife body, a cover plate installed on the hinge knife body, a compression spring installed between the hinge knife body and the cover plate, and a hinge knife sliding block installed between the hinge knife body and the cover plate in a sliding mode and connected with the compression spring in an abutting mode. A guide flat key is installed on the hinge knife body, a guide hole channel is formed in the cover plate, a guide groove matched with the guide flat key is formed in the hinge knife sliding block, and a guide column matched with the guide hole channel is installed on the hinge knife sliding block. According to the bending hinge knife, elastic thrust is provided for the hinge knife sliding block through the compression spring, sliding lifting driving matching of the hinge knife sliding block is simple, the structure is simple, stability is good, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending processing, in particular to a bending hinge knife. Background Art

[0002] A bending center is a machine that can bend metal sheets. It is mainly used in the field of metal sheet processing. The bending machine can bend metal sheets at various angles using a simple mold to obtain metal sheets with complex shapes. The flexible bending center is a new type of thin plate bending equipment that can realize automatic bending of sheets, greatly improving bending efficiency and accuracy, and is a great help to the sheet metal industry. Existing bending centers all use bending hinge knives for processing and production. Among them, the flexible bending center slide rail pneumatic hinge knife disclosed in the publication number CN115138718A, the sliding and lifting of the hinge knife slider is driven by the linkage of the connecting seat, connecting column, movable seat, and connecting rod, the structure is complex, and the stability is poor during use. Utility Model Content

[0003] Based on this, it is necessary to provide a bending hinge knife with a simple and practical structure and good stability to address the problems existing in the existing bending hinge knife.

[0004] A bending hinge knife comprises: a hinge knife body, a cover plate installed on the hinge knife body, a compression spring installed between the hinge knife body and the cover plate, and a hinge knife slider slidably installed between the hinge knife body and the cover plate and abutting against the compression spring; a guide flat key is installed on the hinge knife body, a guide channel is opened on the cover plate, a guide groove adapted to the guide flat key is provided on the hinge knife slider, and a guide column adapted to the guide channel is installed on the hinge knife slider.

[0005] The above-mentioned bending hinge knife plays a guiding role between the guide flat key and the guide groove, and between the guide channel and the guide column, and the compression spring can provide an elastic thrust to the hinge knife slider. When in use, when in a free state, the hinge knife slider is pushed out by the compression spring, and when the blade of the hinge knife slider is subjected to force, the hinge knife slider retracts to the hinge knife body. At this time, the blade of the hinge knife slider and the blade of the hinge knife body form a whole, achieving the effect of a hinge knife. The bending hinge knife provides an elastic thrust to the hinge knife slider through the compression spring, and the sliding and lifting drive of the hinge knife slider is simple to cooperate, simple in structure, stable and practical.

[0006] In one of the embodiments, a first guiding inclined surface is provided on the hinge knife body, and the guiding flat key is located on the first guiding inclined surface.

[0007] In one of the embodiments, a second guiding inclined surface is provided on the hinge knife slider, and the guiding groove is located on the second guiding inclined surface.

[0008] In one embodiment, the guide flat key, guide channel and guide groove are arranged parallel to each other.

[0009] In one of the embodiments, it further comprises a spring top block installed between the hinge knife body and the cover plate, one end of the spring top block abuts against the compression spring, and the other end of the spring top block abuts against the hinge knife slider.

[0010] In one of the embodiments, a spring groove is provided on the spring top block, and one end of the compression spring close to the hinge knife slider is located in the spring groove.

[0011] In one of the embodiments, a receiving groove is provided on the hinge knife body, and the compression spring and the spring top block are located in the receiving groove.

[0012] In one of the embodiments, it further includes a side stopper mounted on the hinge knife body, and the side stopper extends downward.

[0013] In one of the embodiments, a block installation notch is provided on the hinge knife body, the side block is installed on the block installation notch, and an avoidance notch arranged opposite to the side block is provided on the hinge knife slider.

[0014] In one of the embodiments, it also includes a limit pin that penetrates the hinge knife body and the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a bending hinge knife of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of a bending hinge knife from another perspective is shown;

[0017] Figure 3 for Figure 2 A schematic diagram of the bending hinge knife shown in the state where the hinge knife slider is extended;

[0018] Figure 4 for Figure 2 An exploded schematic diagram of a bending hinge knife is shown;

[0019] Figure 5 for Figure 2 Schematic diagram of the bending hinge knife shown lacking the cover plate;

[0020] Figure 6 for Figure 1 A schematic diagram of the hinge knife body shown;

[0021] Figure 7 for Figure 1 A schematic diagram of the hinge knife slider is shown. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element in the middle at the same time. In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments, such as "inside", "outside", "left", "right" and similar expressions are only for the purpose of explanation and are not intended to limit the present invention.

[0025] Please refer to Figures 1 to 7 , is a schematic diagram of a bending hinge knife 100 of the utility model, which includes a hinge knife body 20, a cover plate 30 installed on the hinge knife body 20, a compression spring 40 installed between the hinge knife body 20 and the cover plate 30, and a hinge knife slider 50 slidably installed between the hinge knife body 20 and the cover plate 30 and abutting against the compression spring 40.

[0026] Further, the hinge blade body 20 is provided with a guide flat key 21, the cover plate 30 is provided with a guide channel 31, the hinge blade slider 50 is provided with a guide groove 51 adapted to the guide flat key 21, and the hinge blade slider 50 is provided with a guide column 52 adapted to the guide channel 31. The guide flat key 21, the guide channel 31, and the guide groove 51 are arranged in parallel with each other, so that a group of guide matches is formed between the guide flat key 21 and the guide groove 51, and another group of guide matches is formed between the guide channel 31 and the guide column 52. Further, the hinge blade body 20 is provided with a first guide inclined surface 22, and the guide flat key 21 is located on the first guide inclined surface 22. The hinge blade slider 50 is provided with a second guide inclined surface 53, and the guide groove 51 is located on the second guide inclined surface 53, and the second guide inclined surface 53 is arranged opposite to and parallel to the first guide inclined surface 22.

[0027] Furthermore, the bending hinge knife 100 also includes a spring top block 60 installed between the hinge knife body 20 and the cover plate 30, one end of the spring top block 60 abuts against the compression spring 40, and the other end of the spring top block 60 abuts against the hinge knife slider 50. The spring top block 60 exists as a transfer force member, which is convenient for the compression spring 40 to provide a stable elastic force and also increases the contact area with the hinge knife slider 50. A spring groove 61 is provided on the spring top block 60, and one end of the compression spring 40 close to the hinge knife slider 50 is located in the spring groove 61, so that the compression spring 40 will not swing left and right and fall off, and the stability is further improved. In this embodiment, there are two compression springs 40 and two spring grooves 61.

[0028] Furthermore, a receiving groove 24 is provided on the hinge knife body 20, and the compression spring 40 and the spring top block 60 are located in the receiving groove 24, so that the installation space of the compression spring 40 and the spring top block 60 is more reasonable.

[0029] Furthermore, the bending hinge knife 100 further includes a side block 70 installed on the hinge knife body 20, the side block 70 extends downward, and the side block 70 limits the side of the hinge knife slider 50 when it moves up and down. Furthermore, the hinge knife body 20 is provided with a block installation notch 23, the side block 70 is installed on the block installation notch 23, and the hinge knife slider 50 is provided with an avoidance notch 54 arranged opposite to the side block 70. Through the setting of the block installation notch 23 and the avoidance notch 54, the outer side of the side block 70 is flush with the outer side of the hinge knife body 20 and the outer side of the hinge knife slider 50, so that the appearance of the entire bending hinge knife 100 is more beautiful.

[0030] Furthermore, the bending hinge knife 100 also includes a limit pin 80 passing through the hinge knife body 20 and the cover plate 30. Through the setting of the limit pin 80, the assembly of the cover plate 30 and the hinge knife body 20 can be more stable, wherein there are two limit pins 80.

[0031] The above-mentioned bending hinge knife 100 plays a guiding role between the guide flat key 21 and the guide groove 51, and between the guide channel 31 and the guide column 52, and the compression spring 40 can provide an elastic thrust to the hinge knife slider 50. When in use, when in a free state, the hinge knife slider 50 is pushed out by the compression spring 40, and when the blade of the hinge knife slider 50 is subjected to force, the hinge knife slider 50 retracts to the hinge knife body 20, and at this time, the blade of the hinge knife slider 50 is integrated with the blade of the hinge knife body 20, achieving the effect of a hinge knife. The bending hinge knife 100 provides an elastic thrust to the hinge knife slider 50 through the compression spring 40, and the sliding and lifting drive of the hinge knife slider 50 is simple to cooperate, and does not need to be driven by the linkage of the connecting seat, the connecting column, the movable seat, and the connecting rod. It has a simple structure, good stability and is practical.

[0032] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A bending hinge knife, characterized in that: include: A hinge knife body, a cover plate installed on the hinge knife body, a compression spring installed between the hinge knife body and the cover plate, and a hinge knife slider slidably installed between the hinge knife body and the cover plate and abutting against the compression spring; a guide flat key is installed on the hinge knife body, a guide channel is opened on the cover plate, a guide groove adapted to the guide flat key is provided on the hinge knife slider, and a guide column adapted to the guide channel is installed on the hinge knife slider.

2. The bending hinge knife according to claim 1, characterized in that: The hinge knife body is provided with a first guiding inclined surface, and the guiding flat key is located on the first guiding inclined surface.

3. The bending hinge knife according to claim 2, characterized in that: The hinge knife slider is provided with a second guiding inclined surface, and the guiding groove is located on the second guiding inclined surface.

4. The bending hinge knife according to claim 1, characterized in that: The guide flat key, the guide channel and the guide groove are arranged parallel to each other.

5. The bending hinge knife according to claim 1, characterized in that: It also includes a spring top block installed between the hinge knife body and the cover plate, one end of the spring top block abuts against the compression spring, and the other end of the spring top block abuts against the hinge knife slider.

6. The bending hinge knife according to claim 5, characterized in that: The spring top block is provided with a spring groove, and one end of the compression spring close to the hinge knife slider is located in the spring groove.

7. The bending hinge knife according to claim 5, characterized in that: The hinge knife body is provided with a receiving groove, and the compression spring and the spring top block are located in the receiving groove.

8. The bending hinge knife according to claim 1, characterized in that: It also includes a side stopper installed on the hinge knife body, and the side stopper extends downward.

9. The bending hinge knife according to claim 8, characterized in that: The hinge knife body is provided with a block installation notch, the side block is installed on the block installation notch, and the hinge knife slider is provided with an avoidance notch arranged opposite to the side block.

10. The bending hinge knife according to claim 1, characterized in that: It also includes a limit pin which is penetrated through the hinge knife body and the cover plate.

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