Shearing die with shearing opening with angle

Abstract

The shearing die comprises an outer die body and an inner die body, the outer die body is arranged on the outer side of the inner die body in a sleeving mode, the inner die body is provided with a cutter seam allowing a cutter to move, the outer die body is provided with the shearing opening, a bending opening and a die punching opening, and the outer die body and the inner die body can rotate relative to each other. The cutting edge is characterized in that the cutting edge is provided with at least one cutting edge inclining at a preset angle, an inclined first filling part is arranged at the position, corresponding to the blade point of the cutter material, of the cutting edge, and the inclination angle of the first filling part is larger than or equal to that of the blade point of the cutter material. By the adoption of the method, the first filling part is arranged at the position, corresponding to the blade point, of the cutting edge, the initial shearing point of the cutting edge and the blade is located at the top point of the blade point through the first filling part, and therefore it is guaranteed that the blade point is sheared off; and the phenomenon that the cutting edge is not straight and has burrs is avoided, and the yield of the cutting die is improved.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting technology, and in particular to a shearing die with an angled shearing opening. Background Technology

[0002] The production of complex shapes in cardboard boxes, paper boxes, plastic products, and various handicrafts typically requires the use of corresponding die-cutting dies. These dies are used to perform die-cutting, creasing, and other processes on the raw materials, enabling high-volume, efficient production. The production of these dies necessitates the use of specialized die-cutting machines to cut and shape long, narrow steel blades.

[0003] During the production and processing of die-cutting molds, bending machines are usually used to perform bending and shearing operations as needed. To ensure the accuracy of shearing, existing bending machines integrate bending and shearing into one unit, that is, one set of molds can achieve both bending and shearing effects.

[0004] The shearing of a die-cutting mold is achieved through the shearing force generated when the inner and outer molds intersect. In existing die-cutting molds, to ensure a smooth, burr-free cut when the die is sheared, the cutting edge of the outer mold is set at an angle rather than vertical, using progressive cutting to avoid burrs when the die is cut. However, in actual use, the inventors found that one end of the die-cutting mold has a blade edge, which is angled to ensure sharpness and is usually not at the same angle as the outer mold's cutting edge. When shearing the die-cutting mold, due to the inconsistent angles, the initial shearing point between the cutting edge and the cutting material is not on the blade edge, and there is a gap between the blade edge and the cutting edge. As a result, the blade edge is not cut off but is broken off by the push of the outer mold's cutting edge, which makes the cut edge prone to burrs and unevenness.

[0005] Therefore, there is an urgent need to design a shearing die with an angled shearing nozzle to solve one or more technical problems that are lacking in the existing technology. Utility Model Content

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a shearing die with an angled shearing opening, comprising an outer die and an inner die, wherein the outer die is sleeved on the outside of the inner die, the inner die has a cutting slit for feeding the cutting material, the outer die has a shearing opening, a bending opening, and a die punching opening, and the outer die and the inner die can rotate relative to each other, characterized in that: the shearing opening has at least one cutting edge inclined at a predetermined angle, the cutting edge has an inclined first filling part at a position corresponding to the cutting edge of the cutting material, the inclination angle of the first filling part is greater than or equal to the inclination angle of the cutting edge of the cutting material, and the cutting slit has an inclined second filling part at a position corresponding to the cutting edge of the cutting material.

[0007] In a preferred embodiment, the second filling portion is adapted to the blade edge.

[0008] In a preferred embodiment, the cutting edge is provided in two parts.

[0009] The beneficial effects of this utility model are: by setting a first filling part at the position corresponding to the blade edge and the cutting edge, the initial shearing point between the blade edge and the cutting material is located at the apex of the cutting edge, thereby ensuring that the cutting edge cuts and avoiding the phenomenon of uneven blade edge and burrs, thus improving the yield of the die. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a front view of the present invention;

[0012] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0013] In the picture:

[0014] 10. Inner mold; 11. Outer mold; 12. Knife seam; 13. Shearing opening; 14. Cutting edge; 15. First filling part; 16. Second filling part; 17. Knife material; 18. Bending opening; 19. Die punching opening. Detailed Implementation

[0015] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0016] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0017] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0018] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0019] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] like Figures 1-3 As shown, this utility model provides a shearing die with an angled shearing opening, including an outer die 11 and an inner die 10. The outer die 11 is sleeved on the outside of the inner die 10. The inner die 10 has a cutting slit 12 for feeding a cutting material 17. The outer die 11 has a shearing opening 13, a bending opening 18, and a die punching opening 19. The outer die 11 and the inner die 10 can rotate relative to each other. The shearing opening 13 has at least one cutting edge 14 inclined at a predetermined angle. The cutting edge 14 has an inclined first filling part 15 at a position corresponding to the cutting edge of the cutting material 17. The inclination angle of the first filling part 15 is greater than or equal to the inclination angle of the cutting edge of the cutting material 17. The cutting slit 12 also has an inclined second filling part 16 at a position corresponding to the cutting edge of the cutting material 17.

[0021] Furthermore, the tilt angle of the second filling part 16 is greater than or equal to the tilt angle of the blade edge of the blade material 17;

[0022] Furthermore, the cutting edge 14 is provided in two parts.

[0023] Specifically, the outer mold 11 has two sets of shearing openings 13, bending openings 18, and die punching openings 19, which are positioned opposite each other in a front-to-back position, allowing the cutting material 17 to move within the range of the shearing openings 13, bending openings 18, and die punching openings 19. The shearing opening 13 has at least one cutting edge 14 inclined at a predetermined angle. In this embodiment, two cutting edges 14 are preferably provided. The two cutting edges 14 allow the mold to perform shearing regardless of whether it rotates forward or backward. The inclined cutting edges 14 ensure that the shearing opening 13 shears the cutting material 17 gradually, guaranteeing that the cutting edge of the cutting material 17 is straight and burr-free. To prevent the initial shearing point of the cutting edge 14 and the cutting material 17 from not being at the tip of the blade, a second cutting edge 14 is provided at the position corresponding to the blade tip. A filling portion 15 is provided, which is inclined at an angle greater than or equal to the inclination angle of the blade edge of the cutting material 17. In this embodiment, it is preferably greater than the inclination angle of the blade edge of the cutting material 17. At this angle, the initial shearing point between the cutting edge 14 and the cutting material 17 is at the apex of the blade edge. At this time, the blade edge is cut off rather than broken during shearing, thereby avoiding the problem of burrs or unevenness of the blade edge. The angle of the first filling portion 15 can also be equal to the angle of the blade edge of the cutting material 17. However, since the initial contact position between the cutting edge 14 and the blade edge is on the side wall of the entire blade edge when the inclination angle is equal, rather than point contact, the effect is lower than that of the method with an inclination angle greater than that, but it is still better than the method with gaps in the prior art.

[0024] Since shearing is achieved through the interaction of the inner mold 10 and the outer mold 11, a second filling part 16 is provided on the blade slit 12 of the inner mold 10 to ensure the shearing effect. The support of the second filling part 16 prevents breakage during shearing, and the blade will not move under the pressure of the cutting edge 14, so the cutting edge will not bend. In this embodiment, since the second filling part 16 is used to provide support and restriction, the inclination angle of the second filling part 16 can be equal to, greater than, or slightly less than the inclination angle of the blade, preferably greater than or equal to; less than can also be less than 0.5 mm.

[0025] It should be noted that, since the blades of the cutting materials 17 have different inclination angles depending on the usage requirements, in order to ensure the applicability of the shearing die, the inclination angle of the first filling part 15 can be determined by using the central or maximum value within the shearing range as the standard. For example, if the blade inclination angle of the first cutting material 17 is 70°, the second cutting material 17 is 65°, the third cutting material 17 is 60°, the fourth cutting material 17 is 55°, and the fifth cutting material 17 is 50°, then the angle of the third cutting material 17 or the angle of the first cutting material 17 can be used as the standard to determine the inclination angle of the first filling part 15.

[0026] In summary, by setting the first filling part 15 at the position corresponding to the blade edge 14, the initial shearing point between the blade edge 14 and the cutting material 17 is located at the apex of the cutting edge, thereby ensuring that the cutting edge cuts and avoiding unevenness and burrs, thus improving the yield rate of the die mold.

[0027] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A shearing die with an angled shearing opening, comprising an outer die and an inner die, the outer die being sleeved outside the inner die, the inner die having a cutting slit for feeding material, the outer die having a shearing opening, a bending opening, and a die punching opening, the outer die and the inner die being rotatable relative to each other, characterized in that: The cutting edge is provided with at least one cutting edge inclined at a predetermined angle. The cutting edge is provided with an inclined first filling part at a position corresponding to the blade edge of the blade. The inclination angle of the first filling part is greater than or equal to the inclination angle of the blade edge of the blade. The slit is also provided with an inclined second filling part at a position corresponding to the blade edge of the blade.

2. The shearing die with an angled shearing notch according to claim 1, characterized in that, The second filling part is adapted to the blade edge.

3. The shearing die with an angled shearing notch according to claim 1, characterized in that, The cutting edge has two.

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