Novel transverse continuous shearing and folding die structure

Abstract

The utility model relates to the technical field of continuous shearing and folding dies, in particular to a novel transverse continuous shearing and folding die structure, a side punching and bending die set is arranged on the lower end face of an upper die set along the lower direction, and folding and shearing die sets matched for use are arranged in the side punching and bending die set and the lower die set; the upper end face of the lower die set is provided with an edge cutting and bending cavity matched with the stamping die set and the folding and shearing die set for containing. The side punching and bending module comprises a composite punch, a stamping part is connected to the outer portion of the composite punch in an embedded mode, and the lower end of the stamping part can penetrate into the trimming and bending cavity; the folding and shearing module comprises an upper cut-off tool block embedded in the stamping part and a lower die blade assembled in the trimming and bending cavity; the upper cut-off tool block is bent; according to the design, on the basis of existing bending, bending of the inner sides of the bent faces is completed, the formed folded edges have a certain radian, and therefore the bent faces at the left end and the right end are bent with the inclination, and the shape requirement of produced products is met.

Description

Technical Field

[0001] This utility model relates to the field of continuous shearing and folding mold technology, and in particular to a novel transverse continuous shearing and folding mold structure. Background Technology

[0002] The transverse shearing and bending die is a composite process structure in stamping dies, mainly used to simultaneously complete two processes in continuous processing: shearing (material cutting) and bending (forming). Its core feature is that through the transverse arrangement of workstations, the cutting and bending actions are integrated into the same set of dies, achieving efficient and high-precision processing.

[0003] The traditional shearing and folding process involves bending the material at both ends, with the cut being a flat surface. After cutting the flat surface, the side of the material is bent to form a folded edge shape. However, the existing traditional shearing and folding process has the following shortcomings: (1) Due to the long shearing process, the cutting blade will be attached with debris, which will inevitably affect the cutting accuracy and product cutting quality; (2) For some specific shaped edge covers, the sides need to be produced as folded shapes along the inner edges of both ends. Therefore, the traditional shearing and folding process cannot meet the requirements of this specific folding shape. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A novel transverse shearing and bending mold structure includes a mold body composed of an upper mold assembly and a lower mold assembly. The upper and lower mold assemblies form a forming chamber for forming sheet metal. The lower end face of the upper mold assembly is provided with a downward-direction side stamping and bending mold assembly. The side stamping and bending mold assembly and the lower mold assembly are equipped with matching bending and shearing mold assemblies. The upper end face of the lower mold assembly is provided with a trimming and bending cavity to accommodate the matching stamping and bending and shearing mold assemblies. Four sets of side stamping and bending mold assemblies are installed at the four corners of the lower end face of the upper mold assembly. Each side stamping and bending mold assembly includes a composite punch with a stamped part externally attached. The lower end of the stamped part can penetrate the trimming and bending cavity. The cavity; the shearing module includes an upper cutting blade embedded in the stamping part and a lower die blade assembled in the edge-cutting and bending cavity. The upper cutting blade protrudes below the stamping part, and the upper cutting blade and the lower die blade are on the same vertical line. The upper cutting blade is curved and is installed on the side of the stamping part away from the forming cavity. The lower die blade is installed on the side wall of the edge-cutting and bending cavity away from the forming cavity. The lower ends of the four stamping parts are provided with inward notches. The notches are located at the end close to the forming cavity. An air nozzle is provided in the notch. At the same time, an air flow channel is provided inside the stamping part, which connects the air nozzle to the outside of the upper module.

[0006] Furthermore, the lower mold assembly includes a lower template, a lower gasket, and a lower mold base installed sequentially from top to bottom; the lower template is provided with a material plate for placing the material plate, and the lower end of the material plate is provided with ejection slots on the left and right sides, an ejection rod is provided in the ejection slot, an ejection spring is provided at the lower end of the ejection rod, an ejection screw is provided at the lower end of the ejection spring, and the ejection screw is fixed in the lower mold base, and the lower template, lower gasket, and lower mold base are provided with a first strip-shaped through hole for accommodating the ejection rod and the ejection spring.

[0007] Furthermore, the lower template is also provided with floating dual-purpose pin groups for guiding and feeding the connecting plate at the left and right ends. There are at least two floating dual-purpose pin groups. The surface of the floating dual-purpose pin group is provided with a slot for placing the connecting plate. The lower end of the floating dual-purpose pin group is provided with a guide spring. The lower end of the guide spring is provided with a guide screw. The guide screw is fixed in the lower mold base. The lower template, lower gasket, and lower mold base are provided with a second strip-shaped through hole to accommodate the floating dual-purpose pin group and the guide spring.

[0008] Furthermore, the air nozzle is positioned at a downward angle of 0° to 60° towards the shearing point of the material plate.

[0009] Furthermore, the upper mold base includes an upper mold base, an upper pad, an upper clamping plate, a stop plate, and a stripper plate installed sequentially from top to bottom; multiple nitrogen springs are assembled in the upper mold base and the upper pad, and the lower output end of the nitrogen spring is fixed to the stop plate.

[0010] Furthermore, there are also external guide post assemblies and internal guide post assemblies that work together between the upper module and the lower module.

[0011] The beneficial effects of this utility model are:

[0012] The design mainly involves bending the inner side of the bending surface on the basis of the existing bending, so that the formed edge has a certain curvature, thus forming the final bending surfaces on both the left and right ends with a bend to meet the shape requirements of the produced product.

[0013] Design an air-blowing structure to clean the burrs on the beveled edges of the left and right side bends and the debris on the cutter, thereby improving the quality of the produced products and the sharpness of the upper cutter block.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention in the mold-opening state.

[0016] Figure 2 This is a schematic diagram of the stamping mold closing state structure of this utility model.

[0017] Figure 3 For based on Figure 2 Schematic diagram of the structure of the cavity with the bend at the center edge.

[0018] Figure 4 This is a top view of the mold of this utility model.

[0019] Figure 5 A schematic diagram of the airflow channel structure for stamping parts.

[0020] The labels in the attached figures are as follows:

[0021] Upper Module-1 Upper mold base-101, upper backing plate-102, upper clamping plate-103, stop plate-104, stripper plate-105, nitrogen spring-106 Lower Module-2 Lower mold plate-201, lower gasket-202, lower mold base-203, material plate-204, ejector slot-205, ejector rod-206, ejector spring-207, ejector screw-208, first strip-shaped through hole-209, floating dual-purpose pin assembly-210, slot-211, guide spring-212, guide screw-213, second strip-shaped through hole-214 Molding Chamber-3 Side-pressing bending module-4 Composite punch-401, stamped part-402, notch-403, air nozzle-404, airflow channel-405 Folding and cutting module-5 Upper cutting blade block-501, lower die cutting edge-502 Cut-edge bending cavity-6 External guide post assembly-7 Inner guide post assembly - 8 Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please see Figures 1-4 This utility model includes a mold body composed of an upper mold assembly 1 and a lower mold assembly 2. The upper mold assembly 1 and the lower mold assembly 2 are closed to form a forming chamber 3 for forming a material sheet. The lower end face of the upper mold assembly 1 is provided with a side stamping and bending mold assembly 4 in the downward direction. The side stamping and bending mold assembly 4 and the lower mold assembly 2 are provided with a bending and shearing mold assembly 5 for cooperation. The upper end face of the lower mold assembly 2 is provided with a trimming and bending cavity 6 that accommodates the matching stamping mold assembly and the bending and shearing mold assembly 5. The side stamping and bending mold assembly 4 consists of four sets, which are installed at the four corners of the lower end face of the upper mold assembly 1. The side stamping and bending mold assembly 4 includes a composite punch 401. The composite punch 401 is externally... A stamped part 402 is inlaid, and the lower end of the stamped part 402 can be inserted into the trimming and bending cavity 6. The bending and shearing module 5 includes an upper cutting blade 501 inlaid in the stamped part 402 and a lower die blade 502 assembled in the trimming and bending cavity 6. The upper cutting blade 501 is exposed below the stamped part 402, and the upper cutting blade 501 and the lower die blade 502 are on the same vertical line. The upper cutting blade 501 is configured to be curved. The upper cutting blade 501 is installed on the side end of the stamped part 402 away from the forming cavity 3, and the lower die blade 502 is installed on the side wall of the trimming and bending cavity 6 away from the forming cavity 3.

[0024] The main structural feature of this technical solution is that, during the mold closing action of the upper mold assembly 1 and the lower mold assembly 2, while the product on the material plate 204 is in the forming cavity 3, the product's left and right sides are simultaneously bent with an inward lateral bend before bending. Specifically, the lower end face of the upper mold assembly 1 is provided with a side stamping and bending mold assembly 4 in the downward direction. The side stamping and bending mold assembly 4 and the lower mold assembly 2 are provided with a matching bending and shearing mold assembly 5. At the same time, the upper end face of the lower mold assembly 2 is provided with a cutting edge bending cavity 6 that accommodates the matching stamping mold assembly and the bending and shearing mold assembly 5. The side stamping and bending mold assembly 4 includes a composite punch 401 and a stamping part 402 that is inserted into it. The bending and shearing mold assembly 5 includes an upper cutting blade 501 inserted into the stamping part 402 and a lower die blade 502 assembled in the cutting edge bending cavity 6.

[0025] The working principle of this part is as follows:

[0026] Step 1: When the upper die 1 closes along the lower die 2, the upper cutting blade 501 in the stamping part 402 first cooperates with the lower die blade 502 to cut the notches at the four corners of the material plate. In order to ensure that the cut notches are arc-shaped, the upper cutting blade 501 is first set to be curved as shown in the figure when it cooperates with the lower die blade 502, so as to cut the four corners of the material plate into arc-shaped notches. The purpose of cutting the notches into arcs is mainly to facilitate the arc-shaped bending on the inner side of the bending surface.

[0027] Step 2: After the notch shearing is completed, the compound punch 401 continues to move the stamping part 402 downward. At this time, the four corners of the material plate are deformed and bent in the cutting edge bending cavity 6 under the pressure of the stamping part 402. The two sets of bending plates in the horizontal direction bend along the inner side to form an arc bend, thus finally completing the arc bend of the four corners of the product.

[0028] As for the overall bending of the bending surface, it can be achieved by loading stamping components at the front and rear ends along the vertical direction on the lower end face of the upper module 1. Since this is an existing achievable technology, it will not be elaborated further.

[0029] To facilitate mold opening and resetting after the product's angled bending, the lower mold assembly 2 is also equipped with an elastic resetting module. Specifically, the lower mold assembly 2 includes a lower template 201, a lower gasket 202, and a lower mold base 203 installed sequentially from top to bottom. The lower template 201 is equipped with a material plate 204 for placing the material plate. The lower end of the material plate 204 has ejection slots 205 on the left and right sides. An ejection rod 206 is provided in the ejection slot 205, and an ejection spring 207 is provided at the lower end of the ejection rod 206. The upper mold base 101 is provided with an ejector screw 208, which is fixed in the lower mold base 203. The lower mold plate 201, the lower gasket 202, and the lower mold base 203 are provided with a first strip-shaped through hole 209 to accommodate the ejector rod 206 and the ejector spring 207. That is, when the upper mold base 101 and the lower mold base 203 are closed, the ejector spring 207 deforms and tightens downward. During the mold opening process, under the elastic action of the ejector spring 207, the ejector rod 206 drives the material plate 204 to reset in the ejector slot 205.

[0030] Meanwhile, the lower template 201 is also provided with floating dual-purpose pin groups 210 for guiding and feeding the connecting plate at the left and right ends. There are at least two floating dual-purpose pin groups 210. The surface of the floating dual-purpose pin group 210 is provided with a groove 211 for placing the connecting plate. The lower end of the floating dual-purpose pin group 210 is provided with a guide spring 212. The lower end of the guide spring 212 is provided with a guide screw 213. The guide screw 213 is fixed in the lower mold base 203. The lower template 201, the lower gasket 202, and the lower mold base 203 are provided with a second strip-shaped through hole 214 to accommodate the floating dual-purpose pin group 210 and the guide spring 212. The main function of the floating dual-purpose pin group 210 is to guide and feed the connecting plate. During the process of the material plate 204 moving down or up, the floating dual-purpose pin group 210 also moves up or down synchronously under the action of the guide spring 212, so as to continue the transportation and feeding of the material plate in the process of completing the continuous shearing and folding process.

[0031] The upper die base 101 includes, from top to bottom, an upper die base 101, an upper pad 102, an upper clamping plate 103, a stop plate 104, and a stripper plate 105. Multiple nitrogen springs 106 are assembled in the upper die base 101 and the upper pad 102. The lower output end of the nitrogen spring 106 is fixed to the stop plate 104, as shown in the figure. The main function of the nitrogen spring 106 is to balance the impact force of the punch press and ensure uniform force during the stamping process. There are also external guide post assemblies 7 and internal guide post assemblies 8 between the upper die assembly 1 and the lower die assembly 2 to provide stable guidance during the die closing and stamping process.

[0032] For optimized viewing, please refer to Figure 5Because this design differs from existing technologies, during the oblique bending process where the shearing point is the side of the bending surface, some burrs may appear during the shearing process. Therefore, this design further incorporates an air blowing component. Specifically, each of the four stamped parts 402 has an inwardly shaped notch 403 at its lower end, located near the forming chamber 3. An air nozzle 404 is provided within the notch 403, and an airflow channel 405 is provided inside the stamped part 402, connecting the air nozzle 404. 4. The air nozzle 404 is located outside the upper module and is inclined downward at 0° to 60° towards the material plate shearing area, as shown in the figure. One end of the airflow channel 405 is connected to the air nozzle 404, and the other end of the airflow channel 405 is connected upward and externally. The airflow channel 405 is connected to the external air pump device (not shown in the figure) to complete the gas transportation. The purpose is to solve the problem of cleaning the burrs on the bend edge of the left and right sides and cleaning the burrs on the cutting edge of the upper cutting blade 501, so as to improve the quality of the produced products and the sharpness of the upper cutting blade 501.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A novel transverse shearing and folding mold structure, comprising a mold body consisting of an upper mold assembly (1) and a lower mold assembly (2), wherein the upper mold assembly (1) and the lower mold assembly (2) are joined to form a forming chamber (3) for forming a material sheet, characterized in that: The lower end face of the upper module (1) is provided with a side stamping and bending module (4) along the downward direction, and the side stamping and bending module (4) and the lower module (2) are provided with a matching bending and shearing module (5); and the upper end face of the lower module (2) is provided with a cutting edge bending cavity (6) that accommodates the matching stamping module and bending and shearing module (5); The side stamping bending module (4) consists of four sets of four side stamping bending modules (4) installed at the four corners of the lower end face of the upper module (1); The side-pressing bending module (4) includes a composite punch (401), and a stamped part (402) is inlaid on the outside of the composite punch (401). The lower end of the stamped part (402) can be inserted into the trimming bending cavity (6). The bending and shearing module (5) includes an upper cutting blade (501) inlaid in the stamped part (402) and a lower die blade (502) assembled in the trimming bending cavity (6). The upper cutting blade (501) is exposed below the stamped part (402), and the upper cutting blade (501) and the lower die blade (502) are on the same vertical line. The upper cutting blade (501) is curved and is installed on the side of the stamping part (402) away from the forming chamber (3). The lower die blade (502) is installed on the side wall of the edge-cutting and bending cavity (6) away from the forming chamber (3). The lower end of the stamped part (402) is provided with an inward notch (403). The notch (403) is located at one end close to the forming chamber (3). An air nozzle (404) is provided in the notch (403). At the same time, an air flow channel (405) is provided inside the stamped part (402). The air flow channel (405) connects the air nozzle (404) with the outside of the upper module.

2. The novel transverse shearing and folding mold structure according to claim 1, characterized in that: The lower mold assembly (2) includes a lower template (201), a lower gasket (202), and a lower mold base (203) installed sequentially from top to bottom. The lower template (201) is provided with a material plate (204) for placing the material plate. The lower end of the material plate (204) is provided with ejection slots (205) on both the left and right sides. An ejection rod (206) is provided in the ejection slot (205). An ejection spring (207) is provided at the lower end of the ejection rod (206). An ejection screw (208) is provided at the lower end of the ejection spring (207). The ejection screw (208) is fixed in the lower mold base (203). The lower template (201), the lower gasket (202), and the lower mold base (203) are provided with a first strip-shaped through hole (209) for accommodating the ejection rod (206) and the ejection spring (207).

3. The novel transverse shearing and folding mold structure according to claim 1, characterized in that: The lower template (201) is also provided with floating dual-purpose pin groups (210) for guiding and feeding the connecting plate at the left and right ends. There are at least two floating dual-purpose pin groups (210). The surface of the floating dual-purpose pin group (210) is provided with a groove (211) for placing the connecting plate. The lower end of the floating dual-purpose pin group (210) is provided with a guide spring (212). The lower end of the guide spring (212) is provided with a guide screw (213). The guide screw (213) is fixed in the lower mold base (203). The lower template (201), the lower gasket (202), and the lower mold base (203) are provided with a second strip-shaped through hole (214) to accommodate the floating dual-purpose pin group (210) and the guide spring (212).

4. The novel transverse shearing and folding mold structure according to claim 1, characterized in that: The air nozzle (404) is inclined downward at 0° to 60° towards the shearing point of the material plate.

5. A novel transverse shearing and folding mold structure according to claim 1, characterized in that: The upper mold base (101) includes an upper mold base (101), an upper pad (102), an upper clamping plate (103), a stop plate (104), and a stripper plate (105) installed from top to bottom. Multiple nitrogen springs (106) are assembled in the upper mold base (101) and the upper pad (102), and the lower output end of the nitrogen spring (106) is fixed to the stop plate (104).

6. The novel transverse shearing and folding mold structure according to claim 1, characterized in that: Between the upper module (1) and the lower module (2), there are also external guide post assemblies (7) and internal guide post assemblies (8) for cooperation.

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