Bending die convenient for stripping

Abstract

The utility model relates to the technical field of dies, in particular to a bending die convenient for stripping, which comprises an upper die component and a lower die component positioned below the upper die component, the upper die assembly comprises an upper die sleeve, a first upper die core and a second upper die core, and the first upper die core and the second upper die core are both arranged at the bottom of the upper die sleeve. The lower die assembly comprises a lower die sleeve, a first lower die core and a cushion block, the first lower die core and the cushion block are both placed in the lower die sleeve, the first lower die core is placed at the top of the cushion block, the first upper die core is movably inserted into the first lower die core, a deformation plate is arranged on the lower die sleeve, and the first upper die core is movably inserted into the first upper die core. A U-shaped long hole used for allowing the second upper die core to be inserted is formed in the top of the deformation plate, the end, used for containing a to-be-bent sheet, of the first lower die core is inserted into the U-shaped long hole and located below the second upper die core, and the side wall of the first lower die core is connected with the inner wall of the lower die sleeve through an elastic piece. The die solves the problem that stripping is difficult due to large friction force after punch forming.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a bending mold that facilitates material removal. Background Technology

[0002] The production of ring-shaped products usually requires the use of molds to stamp and form sheets. However, the sheets tend to stick to the mold during the bending process, resulting in greater friction after bending, which makes it inconvenient to unload the material. In severe cases, external tools are needed to assist in unloading the material. If the material is easily deformable, it will cause the product to deform.

[0003] In view of this, the inventors provide a bending die that facilitates material removal, in order to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a bending die that facilitates material removal. By setting an upper die assembly and a lower die assembly that cooperates with it, the problem of difficult material removal due to high friction after stamping is solved.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] This utility model provides a bending die for easy unloading, including an upper die assembly and a lower die assembly located below it;

[0007] The upper mold assembly includes an upper mold sleeve, a first upper mold core, and a second upper mold core, both of which are located at the bottom of the upper mold sleeve;

[0008] The lower mold assembly includes a lower mold sleeve, a first lower mold core, and a pad. The first lower mold core and the pad are both placed inside the lower mold sleeve, with the first lower mold core positioned on top of the pad. The first upper mold core is movably inserted into the first lower mold core. A deformation plate is provided on the lower mold sleeve, and a U-shaped elongated hole is opened at the top of the deformation plate for inserting a second upper mold core. The end of the first lower mold core used to hold the sheet to be bent is inserted into the U-shaped elongated hole and is located below the second upper mold core. The side wall of the first lower mold core is connected to the inner wall of the lower mold sleeve by an elastic element.

[0009] Furthermore, the first lower mold core includes a left second lower mold core and a right second lower mold core arranged opposite to each other. The sidewalls of the left second lower mold core and the right second lower mold core are connected to the inner wall of the lower mold sleeve by elastic members, and the two elastic members are symmetrical.

[0010] Furthermore, the left second lower mold core includes a left core body, one end of which is provided with a first semi-cylinder, and the right second lower mold core includes a right core body, one end of which is provided with a second semi-cylinder body that merges with the first semi-cylinder body to form a cylinder.

[0011] Both the left and right cores are set inside the lower mold sleeve, and both the first and second semi-cylinders are inserted into the U-shaped elongated hole.

[0012] Furthermore, when the upper mold assembly moves downward, the first upper mold core is inserted between the left core and the right core, and the second upper mold core contacts the sheet to be bent and is stamped into shape.

[0013] Furthermore, the bottom of the lower mold sleeve has an opening that matches the bottom structure of the pad, allowing the bottom of the pad to extend or retract from the opening.

[0014] Furthermore, the pad has a T-shaped structure, with the top of the T-shaped structure located inside the lower mold sleeve and its size being larger than the size of the opening, while the bottom size of the T-shaped structure is smaller than the size of the opening.

[0015] Furthermore, a first spring is fitted at the bottom of the T-shaped structure, the size of which is larger than the size of the opening, so that the first spring is located inside the lower mold sleeve.

[0016] Furthermore, the lower mold sleeve is provided with a baffle that is symmetrical to the deformation plate.

[0017] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0018] This utility model provides a bending die that facilitates material removal. By setting a first upper die core and a second upper die core, as well as a first lower die core and a pad that cooperate with them, a die is formed to bend sheet material into a ring-shaped product. The first lower die core and the lower die sleeve are connected by an elastic element, so that the left second lower die core and the right second lower die core of the first lower die core can be closed, thereby reducing the circumference and facilitating material removal. This solves the problem of difficult material removal due to high friction after stamping. Attached Figure Description

[0019] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the bending mold of this utility model after it is closed;

[0022] Figure 2 This is a schematic diagram of the structure of the bending mold of this utility model after it is separated;

[0023] Figure 3 This is a schematic diagram of the structure of the right second lower mold core of this utility model;

[0024] Figure 4 This is a schematic diagram of the deformable plate of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the pad block of this utility model.

[0026] Wherein: 1 is the upper mold assembly; 2 is the lower mold assembly; 11 is the upper mold sleeve; 12 is the first upper mold core; 13 is the second upper mold core; 21 is the lower mold sleeve; 22 is the first lower mold core; 23 is the pad block; 24 is the deformation plate; 25 is the first spring; 221 is the left second lower mold core; 222 is the right second lower mold core; 241 is the U-shaped elongated hole; 2211 is the left core; 2212 is the first semi-cylinder; 2221 is the right core; 2222 is the second semi-cylinder. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses consistent with some aspects of this invention as detailed in the appended claims.

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1-4 This utility model provides a bending die for easy unloading, including an upper die assembly 1 and a lower die assembly 2 located directly below it;

[0030] The upper mold assembly 1 includes an upper mold sleeve 11, a first upper mold core 12, and a second upper mold core 13. The first upper mold core 12 and the second upper mold core 13 are both inserted into and connected and fixed from the bottom of the upper mold sleeve 11.

[0031] The lower mold assembly 2 includes a lower mold sleeve 21, a first lower mold core 22, and a pad 23. The first lower mold core 22 and the pad 23 are both placed inside the lower mold sleeve 21, and the first lower mold core 22 is placed on top of the pad 23. The first upper mold core 12 is movably inserted into the first lower mold core 22. A deformation plate 24 is connected to the lower mold sleeve 21 by hexagonal bolts. The top of the deformation plate 24 has a U-shaped elongated hole 241 for inserting the second upper mold core 13. The end of the first lower mold core 22 used to place the sheet to be bent is inserted into the U-shaped elongated hole 241 and is located below the second upper mold core 13. The side wall of the first lower mold core 22 is connected to the inner wall of the lower mold sleeve 21 by an elastic element.

[0032] Furthermore, the first lower mold core 22 includes a left second lower mold core 221 and a right second lower mold core 222 disposed opposite to each other. The sidewalls of the left second lower mold core 221 and the right second lower mold core 222 are connected to the inner wall of the lower mold sleeve 21 by a second spring, and the two second springs are symmetrical. When the two second springs remain in their original state, the left second lower mold core 221 and the right second lower mold core 222 are in a closed state.

[0033] like Figures 2-4 As shown, the left second lower mold core 221 includes a left core 2211, one end of which is connected to a first semi-cylinder 2212; the right second lower mold core 222 includes a right core 2221, one end of which is connected to a second semi-cylinder 2222 that merges with the first semi-cylinder 2212 to form a cylinder.

[0034] The left core 2211 and the right core 2221 are both set inside the lower mold sleeve 21, and the first semi-cylinder 2212 and the second semi-cylinder 2222 are both inserted into the U-shaped elongated hole 241.

[0035] The second spring is used to close the left second lower mold core 221 and the right second lower mold core 222 by means of elastic force after the upper mold assembly 1 rises, thereby reducing the circumference size of the first semi-cylinder 2212 and the second semi-cylinder 2222 after they are combined, so as to facilitate material removal.

[0036] Furthermore, when the upper mold assembly 1 moves downward, the first upper mold core 12 is inserted between the left core 2211 and the right core 2221, and the second upper mold core 13 contacts the sheet to be bent and is stamped to form a ring-shaped product.

[0037] Furthermore, the bottom of the lower mold sleeve 21 has an opening that matches the bottom structure of the pad 23, allowing the bottom of the pad 23 to extend or retract from the opening. In this embodiment, the opening is a circular hole.

[0038] like Figure 5As shown, the pad 23 has a T-shaped structure, which consists of a square plate at the top and a cylinder at the bottom. The square plate is located inside the lower mold sleeve 21 and its size is larger than the diameter of the circular hole. The outer diameter of the cylinder is smaller than the diameter of the circular hole.

[0039] Furthermore, a first spring 25 is fitted around the outer periphery of the cylinder. The outer diameter of the first spring 25 is larger than the diameter of the circular hole, so that the first spring 25 is located inside the lower mold sleeve 21.

[0040] The second spring and the first spring 25 work together to ensure that the left second lower mold core 221 and the right second lower mold core 222 are closed and do not sink when the upper mold assembly 1 is not sinking.

[0041] Furthermore, a baffle 26, which is symmetrical to the deformable plate 24, is connected to the lower mold sleeve 21 by hexagonal bolts. The baffle 26 serves to fix the first lower mold core 22 and the pad block 23 inside the lower mold sleeve 21.

[0042] The working process of this utility model is as follows:

[0043] First, install the upper die assembly 1 and the lower die assembly 2 on the stamping equipment. Then, operate to move the upper die assembly 1 towards the lower die assembly 2. Then, place the sheet to be bent on the first semi-cylinder 2212 and the second semi-cylinder 2222. As the upper die assembly 1 moves, the first upper die core 12 is inserted between the left core 2211 and the right core 2221. The second upper die core 13 presses on the sheet to be bent and cooperates with the U-shaped elongated hole 241, so that the sheet to be bent is stamped into a ring-shaped product. After stamping, move the upper die assembly 1 upward. Under the action of the elastic force, the second springs on the left and right sides cause the first semi-cylinder 2212 and the second semi-cylinder 2222 to merge into a cylinder. The outer diameter of the cylinder is smaller than the inner diameter of the ring-shaped product, making it easier to unload the material.

[0044] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0045] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A bending die for easy unloading, characterized in that, It includes an upper mold assembly (1) and a lower mold assembly (2) located below it; The upper mold assembly (1) includes an upper mold sleeve (11), a first upper mold core (12), and a second upper mold core (13), wherein the first upper mold core (12) and the second upper mold core (13) are both disposed at the bottom of the upper mold sleeve (11); The lower mold assembly (2) includes a lower mold sleeve (21), a first lower mold core (22), and a pad (23). The first lower mold core (22) and the pad (23) are both placed inside the lower mold sleeve (21), and the first lower mold core (22) is placed on top of the pad (23). The first upper mold core (12) is movably inserted into the first lower mold core (22). A deformation plate (24) is provided on the lower mold sleeve (21). The top of the deformation plate (24) is provided with a U-shaped elongated hole (241) for inserting the second upper mold core (13). The end of the first lower mold core (22) used to place the sheet to be bent is inserted into the U-shaped elongated hole (241) and located below the second upper mold core (13). The side wall of the first lower mold core (22) is connected to the inner wall of the lower mold sleeve (21) by an elastic element.

2. The bending die for easy unloading according to claim 1, characterized in that, The first lower mold core (22) includes a left second lower mold core (221) and a right second lower mold core (222) arranged opposite to each other. The side walls of the left second lower mold core (221) and the right second lower mold core (222) are connected to the inner wall of the lower mold sleeve (21) by elastic members, and the two elastic members are symmetrical.

3. The bending die for easy unloading according to claim 2, characterized in that, The left second lower mold core (221) includes a left core (2211), one end of which is provided with a first semi-cylinder (2212). The right second lower mold core (222) includes a right core (2221), one end of which is provided with a second semi-cylinder (2222) that merges with the first semi-cylinder (2212) to form a cylinder. The left core (2211) and the right core (2221) are both set inside the lower mold sleeve (21), and the first semi-cylinder (2212) and the second semi-cylinder (2222) are both inserted into the U-shaped elongated hole (241).

4. The bending die for easy unloading according to claim 3, characterized in that, When the upper mold assembly (1) moves downward, the first upper mold core (12) is inserted between the left core (2211) and the right core (2221), and the second upper mold core (13) contacts the sheet to be bent and is stamped.

5. The bending die for easy unloading according to claim 1, characterized in that, The bottom of the lower mold sleeve (21) has an opening that matches the bottom structure of the pad (23), so that the bottom of the pad (23) can extend or retract from the opening.

6. The bending die for easy unloading according to claim 5, characterized in that, The pad (23) has a T-shaped structure. The top of the T-shaped structure is located inside the lower mold sleeve (21) and its size is larger than the size of the opening. The bottom size of the T-shaped structure is smaller than the size of the opening.

7. The bending die for easy unloading according to claim 6, characterized in that, The bottom of the T-shaped structure is fitted with a first spring (25), the size of which is larger than the size of the opening, so that the first spring (25) is located inside the lower mold sleeve (21).

8. The bending die for easy unloading according to claim 1, characterized in that, The lower mold sleeve (21) is provided with a baffle (26) that is symmetrical to the deformation plate (24).

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