A trimming die

Abstract

The utility model relates to the technical field of automobile ornament processing, specifically relates to a trimming die, including lower mould, upper die and cutter assembly, the lower mould and upper die form the cavity for accommodating ornament after closing mould, be equipped with the guide cavity with the cavity intercommunication on the lower mould, the cutter assembly includes the cutter that reciprocates along the guide cavity, the cutting edge of cutter can enter the cavity and be used for cutting off ornament, the utility model adds the guide cavity with the cavity intercommunication on the lower mould, and will cutter be modified from upper die to lower mould, in the punching process, cutter can punch from the appearance surface to the assembly surface of ornament through the guide cavity, thereby avoiding the appearance surface to produce the deformation of collapse.

Description

Technical Field

[0001] This utility model relates to the field of automotive trim processing technology, and in particular to a cutting edge mold. Background Technology

[0002] Currently, the ends of automotive metal exterior trim parts are produced using a front-face punching process, where the cutter on the upper die punches from the exterior surface of the trim part towards the mounting surface. This process causes the punched area on the exterior surface of the trim part to collapse and deform, requiring an additional repair step to fix the collapse defect before subsequent grinding and polishing. However, the repair process for the collapsed exterior surface requires a long time to occupy the machine and consumes a large amount of sheet metal, resulting in reduced production efficiency and material utilization. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cutting mold that can prevent the appearance of the decorative part from collapsing and deforming.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a trimming mold, including a lower mold, an upper mold and a cutting blade assembly; after the lower mold and the upper mold are closed, a cavity for accommodating the decorative part is formed, and a guide cavity communicating with the cavity is provided on the lower mold;

[0005] The cutting assembly includes a cutting blade that reciprocates along the guide cavity, the blade of which can enter the cavity and be used to cut the trim.

[0006] Furthermore, the lower mold has a guide channel on its side wall that communicates with the guide cavity, and the cutter assembly also includes a first pusher block that reciprocates along the guide channel. The end of the first pusher block facing the guide cavity has a first inclined surface that abuts against the bottom of the cutter.

[0007] Furthermore, the bottom of the cutter is provided with a second inclined surface that abuts against the first inclined surface.

[0008] Furthermore, a return spring is provided on the side wall of the lower mold, and the return spring is sandwiched between the first push block and the side wall of the lower mold.

[0009] Furthermore, the cutting assembly also includes a second pusher block, one end of which is connected to the upper mold, and the end of the second pusher block away from the upper mold is provided with a third inclined surface that can abut against the top of the end of the first pusher block away from the guide cavity.

[0010] Furthermore, the first push block is provided with a fourth inclined surface that abuts against the third inclined surface.

[0011] Furthermore, the lower mold is provided with a fixed anti-reverse block, and an anti-reverse space is formed between the anti-reverse block and the first push block for the second push block to extend into. When the second push block extends into the anti-reverse space, the anti-reverse block abuts against the side wall of the second push block.

[0012] Furthermore, the upper mold has a pressure block on its closing surface, and the lower mold has a first limiting block corresponding to the pressure block on its closing surface.

[0013] Furthermore, an elastic element is provided on the closing surface of the upper mold, and the pressure block is located at the end of the elastic element away from the upper mold.

[0014] Furthermore, a second limiting block located at the guide cavity is provided on the mold closing surface of the lower mold.

[0015] The beneficial effects of this invention are as follows: a guide cavity communicating with the mold cavity is added to the lower mold, and the cutter is moved from the upper mold to the lower mold. During the punching process, the cutter can punch from the assembly surface of the trim part to the outer surface through the guide cavity, thereby avoiding sagging and deformation of the outer surface. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of a trimming mold proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the lower mold structure of a trimming mold proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the upper mold structure of a cutting mold proposed in this utility model.

[0019] Label Explanation:

[0020] 1. Lower mold; 11. Guide cavity; 12. Guide channel; 13. Return spring; 14. Anti-reverse block; 15. First limit block; 16. Second limit block;

[0021] 2. Upper mold; 21. Pressure block; 22. Elastic component;

[0022] 3. Cutting blade assembly; 31. Cutting blade; 311. Second inclined plane

[0023] 32. First push block; 321. First inclined plane; 322. Fourth inclined plane;

[0024] 33. Second push block; 331. Third inclined plane;

[0025] 4. External positioning components; 41. Support base; 42. Positioning block;

[0026] 5. Guide post. Detailed Implementation

[0027] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0028] Please refer to Figure 1 As shown, this utility model discloses a cutting mold, including a lower mold 1, an upper mold 2, and a cutting blade assembly 3; after the lower mold 1 and the upper mold 2 are closed, a cavity for accommodating the decorative part is formed, and the lower mold 1 is provided with a guide cavity 11 communicating with the cavity; the cutting blade assembly 3 includes a cutting blade 31 that reciprocates along the guide cavity 11, and the cutting edge of the cutting blade 31 can enter the cavity and be used to cut the decorative part.

[0029] Working principle: The decorative part is positioned on the lower mold 1 by the punch on the mold closing surface of the lower mold 1. Then, the machine tool drives the upper mold 2 to close with the lower mold 1. At the same time as the lower mold 1 and the upper mold 2 close, the cutting edge of the cutter 31 enters the cavity and punches from the assembly surface of the decorative part to the outer surface, thereby preventing the outer surface from collapsing and deforming.

[0030] It is worth noting that after the cutter 31 punches from the assembly surface of the trim to the outer surface, it will cause a raised deformation at the punching position on the outer surface. However, compared with the collapse deformation, the raised part can be directly ground in the grinding and polishing process.

[0031] In some implementations, please refer to Figure 1 and Figure 2 As shown, the lower mold 1 has a guide channel 12 on its side wall that communicates with the guide cavity 11. The cutter assembly 3 also includes a first pusher block 32 that reciprocates along the guide channel 12. The end of the first pusher block 32 facing the guide cavity 11 has a first inclined surface 321 that abuts against the bottom of the cutter 31. By pushing the first pusher block 32 laterally from the guide channel 12 into the guide cavity 11, the first pusher block 32 can lift the cutter 31 using the first inclined surface 321, thereby realizing the punching operation of the cutter 31.

[0032] It is worth noting that, please refer to Figure 1 As shown, the bottom of the cutter 31 is provided with a second inclined surface 311 that abuts against the first inclined surface 321. The first inclined surface 321 and the second inclined surface 311 enable the first pusher 32 to push the cutter 31 more smoothly.

[0033] It should be noted that, please refer to Figure 1 As shown, the bottom of the cutter 31 that contacts the first inclined surface 321 is the bottom corner position of the cutter 31 facing the first push block 32.

[0034] In some implementations, please refer to Figure 1As shown, a return spring 13 is provided on the side wall of the lower mold 1, and the return spring 13 is sandwiched between the first push block 32 and the side wall of the lower mold 1. During the process of the first push block 32 approaching the guide cavity 11, the first push block 32 will compress the return spring 13. After the punching of the trim is completed, the elastic force generated by the return spring 13 drives the first push block 32 to automatically return to its original position.

[0035] In some implementations, please refer to Figure 1 and Figure 3 As shown, the cutting assembly 3 also includes a second pusher block 33. One end of the second pusher block 33 is connected to the upper mold 2, and the end of the second pusher block 33 away from the upper mold 2 is provided with a third inclined surface 331 that can abut against the top of the end of the first pusher block 32 away from the guide cavity 11. By connecting the second pusher block 33, which is used to drive the first pusher block 32 into the guide cavity 11, to the upper mold 2, punching can be performed while the mold is closed, and resetting can be performed when the mold is demolded.

[0036] It is worth noting that, please refer to Figure 1 As shown, the first push block 32 is provided with a fourth inclined surface 322 that abuts against the third inclined surface 331. The third inclined surface 331 and the fourth inclined surface 322 enable the second push block 33 to push the first push block 32 more smoothly.

[0037] It should be noted that, please refer to Figure 1 As shown, the top of the first push block 32 that contacts the third inclined surface 331 is the apex position of the end of the first push block 32 away from the guide cavity 11.

[0038] In some implementations, please refer to Figure 1 and Figure 2 As shown, a fixedly mounted anti-reverse block 14 is provided on the lower mold 1. An anti-reverse space is formed between the anti-reverse block 14 and the first push block 32, allowing the second push block 33 to extend into it. When the second push block 33 extends into the anti-reverse space, the anti-reverse block 14 abuts against the side wall of the second push block 33. The anti-reverse block 14 is used to prevent the second push block 33 from bending and deforming away from the guide cavity 11, so as to ensure that the cutter 31 can cut the trim piece.

[0039] In some implementations, please refer to Figures 1 to 3 As shown, the upper mold 2 has a pressure block 21 on its closing surface, and the lower mold 1 has a first limiting block 15 corresponding to the pressure block 21 on its closing surface. During the mold closing process between the lower mold 1 and the upper mold 2, the pressure block 21 of the upper mold 2 presses the decorative part firmly onto the lower mold 1 to ensure stable punching. At the same time, the first limiting block 15 limits the downward stroke of the pressure block 21 to prevent the pressure block 21 from over-pressing and damaging the appearance surface of the decorative part.

[0040] In some implementations, please refer to Figure 1As shown, an elastic element 22 is provided on the closing surface of the upper mold 2, and a pressure block 21 is located at the end of the elastic element 22 away from the upper mold 2. During the mold closing process of the lower mold 1 and the upper mold 2, the elastic force of the elastic element 22 is used for buffering to avoid a large impact during mold closing.

[0041] It is worth noting that the elastic element 22 can be a nitrogen spring, a rubber spring, a leaf spring, a round wire spring, etc.

[0042] In some implementations, please refer to Figure 1 and Figure 2 As shown, a second limiting block 16 is provided on the mold closing surface of the lower mold 1 at the guide cavity 11. During the punching process, the second limiting block 16 is used to limit the amount of the cutter 31 entering the cavity.

[0043] In some implementations, please refer to Figure 2 As shown, a trimming die also includes an outline positioning component 4 located at the side end of the lower die 1. The outline positioning component 4 includes a support base 41 and two positioning blocks 42 slidably connected to the top surface of the support base 41. After the end of the trimming part to be punched is positioned in the lower die 1, the remaining part of the trimming part is clamped by the positioning blocks 42 along its own width direction, thereby ensuring the stability of the trimming part during the punching process.

[0044] In some implementations, please refer to Figure 3 As shown, a trimming mold also includes a guide post 5, one end of which is connected to the lower mold 1, and the upper mold 2 is slidably connected to the guide post 5. During the mold closing process, the guide post 5 can guide the movement direction of the upper mold 2 to ensure the mold closing of the upper mold 2 and the lower mold 1.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A trimming die, characterized in that: It includes a lower mold, an upper mold, and a cutting die assembly; after the lower mold and the upper mold are closed, they form a cavity for accommodating the decorative part, and the lower mold is provided with a guide cavity that communicates with the cavity; The cutting assembly includes a cutting blade that reciprocates along the guide cavity, the blade of which can enter the cavity and be used to cut the trim.

2. The trimming die according to claim 1, characterized in that: The lower mold has a guide channel on its side wall that communicates with the guide cavity. The cutter assembly also includes a first pusher block that reciprocates along the guide channel. The end of the first pusher block facing the guide cavity has a first inclined surface that abuts against the bottom of the cutter.

3. The trimming die according to claim 2, characterized in that: The bottom of the cutter has a second inclined surface that abuts against the first inclined surface.

4. The trimming die according to claim 2, characterized in that: A return spring is provided on the side wall of the lower mold, and the return spring is sandwiched between the first push block and the side wall of the lower mold.

5. The trimming die according to claim 2, characterized in that: The cutting assembly further includes a second pusher block, one end of which is connected to the upper mold, and the end of the second pusher block away from the upper mold is provided with a third inclined surface that can abut against the top of the end of the first pusher block away from the guide cavity.

6. The trimming die according to claim 5, characterized in that: The first push block is provided with a fourth inclined surface that abuts against the third inclined surface.

7. The trimming die according to claim 5, characterized in that: The lower mold is provided with a fixed anti-reverse block, and an anti-reverse space is formed between the anti-reverse block and the first push block for the second push block to extend into. When the second push block extends into the anti-reverse space, the anti-reverse block abuts against the side wall of the second push block.

8. The trimming die according to claim 1, characterized in that: The upper mold has a pressing block on its closing surface, and the lower mold has a first limiting block corresponding to the pressing block on its closing surface.

9. The trimming die according to claim 8, characterized in that: The upper mold has an elastic element on its closing surface, and the pressure block is located at the end of the elastic element away from the upper mold.

10. The trimming die according to claim 1, characterized in that: The lower mold has a second limiting block located in the guide cavity on its mold closing surface.

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