Anti-scratch hot trimming die

Abstract

The utility model discloses an anti-scratch hot trimming die, and relates to the technical field of hot trimming dies. Comprising a lower die plate, the lower die plate is provided with a machining mechanism used for object edge cutting, the machining mechanism comprises an edge cutting assembly, the edge cutting assembly comprises a male die body connected with the upper end face of the lower die plate in an attached mode, and male die cutter blocks are fixedly connected to the two sides of the male die body; the upper die plate drives the supporting block, the female die body and the female die cutter block to move downwards through the lifting assembly to be combined with the male die body and the male die cutter block, so that a material placed between the male die body and the male die cutter block is blanked, and the edges of the male die body and the female die body are each of an arc-shaped structure; according to the design, friction and scratches between the die and materials can be reduced, meanwhile, the first rubber pad and the second rubber pad play a buffering role in the blanking process, the materials are further protected against being scratched, the friction force between the first rubber pad and a machined object is increased through the first rubber pad, and the stability of the object in the edge cutting process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot trimming moulds, in particular to a scratch-resistant hot trimming mould. Background Art

[0002] The hot trimming mold performs injection pouring and pressure holding according to the set conditions, the mold is closed, and then the timing control is performed. When the mold is closed, it touches the travel switch, transmits the signal to the timing controller, calculates the cutter action time, and finally the cutter action: the timing controller outputs high-pressure oil to the cylinder, pushes the cutter out, and completes the cutting.

[0003] The reference patent (publication number: CN213162645U; publication date: 2021-05-11) relates to a hot trimming die for forgings; it includes an upper die insert, an upper trimming insert, a lower die insert and a lower trimming insert, the upper trimming insert is fixedly arranged on the bottom surface of the upper die insert, the lower trimming insert is fixedly arranged on the lower die insert, and the inner edge of the lower trimming insert cooperates with the outer edge of the upper trimming insert to jointly cut the forging; the lower trimming insert is provided with multiple sets of anti-scratch devices on the side close to the lower die insert, and the multiple sets of anti-scratch devices are all arranged on the outside of the cutting edge of the lower trimming insert.

[0004] The edges of traditional molds are usually designed with right angles or sharp angles. This design is prone to generate large friction and impact with the material during high-speed punching, resulting in obvious scratches and damage on the material surface, affecting the appearance quality of the product. After punching is completed, manual material removal and waste disposal are usually required, which not only increases labor intensity but also reduces production efficiency. At the same time, during high-speed punching, due to insufficient friction between the mold and the material, the material may shift or shake during cutting, affecting the cutting accuracy and stability. For this reason, the utility model provides a scratch-resistant hot cutting mold. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a scratch-resistant hot trimming mold, which solves the problem that the edges of traditional molds are usually designed with right angles or sharp angles. This design is prone to generate large friction and impact with the material during high-speed punching, resulting in obvious scratches and damage on the material surface, affecting the appearance quality of the product. After punching is completed, manual material removal and waste disposal are usually required, which not only increases labor intensity, but also reduces production efficiency. At the same time, during high-speed punching, due to insufficient friction between the mold and the material, the material may shift or shake during trimming, affecting the trimming accuracy and stability.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a scratch-resistant hot trimming mold, comprising a lower template, on which a processing mechanism for trimming an object is provided, the processing mechanism comprising:

[0007] The trimming assembly comprises a punch body fittedly connected to the upper end surface of the lower template, punch blade blocks are fixedly connected to both sides of the punch body, the inner side of the punch blade block is located at the upper end surface of the punch body and is fixedly connected to the second rubber pad, the top of the punch body is fixedly connected to two groups of first rubber pads, guide posts are fixedly connected to both sides of the lower template, the upper ends of the guide posts are fixedly connected to the upper template, the interior of the upper template is connected to a support block via a lifting assembly, the lower end surface of the support block is fixedly connected to the die body, the lower end surface of the die body is fixedly connected to the die blade block, the upper end surface of the lower template is fixedly connected to the buffer assembly, and the edges of the die body and the punch body are in an arc-shaped structure;

[0008] The pushing assembly includes a cavity groove opened and closed inside the punch body, a compression spring fixedly connected to the inner wall of the cavity groove, a pushing block fixedly connected to the top of the compression spring, a T-shaped groove opened inside the lower template, a T-shaped slider slidably connected inside the T-shaped groove, and a push plate fixedly connected to the upper end of the T-shaped slider.

[0009] Preferably, the front and rear side walls of the male mold body are fitted with an L-shaped piece, and both side walls of the L-shaped piece are provided with bolts.

[0010] Preferably, the buffer assembly includes a shock-absorbing spring fixedly connected on both sides of the lower template, the upper end of the shock-absorbing spring is fixedly connected to a buffer block, and the inner ring of the shock-absorbing spring is located on the upper end surface of the lower template and is fixedly connected to a damping support rod.

[0011] Preferably, the lifting assembly includes a first hydraulic rod fixedly connected to the interior of the upper template, and the support block is located at the telescopic end of the first hydraulic rod and is fixedly connected.

[0012] Preferably, the inner ring of the compression spring is provided with a telescopic sleeve rod, and the telescopic sleeve rod is fixedly connected to the pushing block and the inner wall of the cavity groove respectively.

[0013] Preferably, the rear side wall of the lower template is fixedly connected to a second hydraulic rod, the telescopic end of the second hydraulic rod is fixedly connected to a connecting plate, and both ends of the connecting plate are fixedly connected to the pusher plate.

[0014] Beneficial effects

[0015] The utility model provides a scratch-resistant hot trimming die. Compared with the existing technology, it has the following advantages:

[0016] Beneficial effects:

[0017] Firstly, in the present invention, the upper template drives the support block, the die body and the die blade to move downward through the lifting assembly, and is clamped with the punch body and the punch blade, thereby punching out the material placed between the two. Since the edges of the punch body and the die body are in an arc-shaped structure, this design can reduce the friction and scratches between the mold and the material. At the same time, the first rubber pad and the second rubber pad act as a buffer during the punching process, further protecting the material from being scratched, and increasing the friction with the processed object through the first rubber pad, thereby improving the stability of the object during edge cutting.

[0018] Secondly, the support block and the die body of the utility model are driven downward, and then the die knife block and the punch knife block cooperate to realize the trimming of the object. The pushing block is compressed inside the cavity groove by the compression spring and the telescopic sleeve. After the trimming is completed, the pushing block is pushed upward by the compression spring to facilitate material removal. At the same time, when the second hydraulic rod is contracted, the pushing plate slides inside the lower template through the T-slot and the T-slider, thereby realizing the automatic sliding pushing of the push material generated after trimming, which is convenient for the treatment of waste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the buffer block structure of the present utility model;

[0021] Figure 3 This is a schematic diagram of the internal connection structure of the male mold body of the present utility model;

[0022] Figure 4 This is a schematic diagram of the pusher plate connection structure of the utility model.

[0023] In the figure: 1. Lower template; 101. Guide column; 102. Upper template; 2. Punch body; 201. Cavity groove; 202. Compression spring; 203. Push block; 204. Telescopic sleeve; 3. First rubber pad; 301. Second rubber pad; 302. Punch knife block; 4. First hydraulic rod; 401. Support block; 402. Die body; 403. Die knife block; 5. T-slot; 501. T-slider; 502. Push plate; 503. Second hydraulic rod; 504. Connecting plate; 6. L-shaped part; 7. Shock-absorbing spring; 701. Damping support rod; 702. Buffer block. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1-4 The utility model provides a technical solution: a scratch-resistant hot trimming mold, comprising a lower template 1, on which a processing mechanism for trimming an object is provided, the processing mechanism comprising:

[0027] The trimming assembly includes a punch body 2 fitted with the upper end surface of the lower template 1, punch blade blocks 302 are fixedly connected to both sides of the punch body 2, the inner side of the punch blade block 302 is located at the upper end surface of the punch body 2 and is fixedly connected to the second rubber pad 301, and the top of the punch body 2 is fixedly connected to two groups of first rubber pads 3, guide pillars 101 are fixedly connected to both sides of the lower template 1, the upper end of the guide pillars 101 is fixedly connected to the upper template 102, the interior of the upper template 102 is connected to a support block 401 via a lifting assembly, the lower end surface of the support block 401 is fixedly connected to the die body 402, the lower end surface of the die body 402 is fixedly connected to the die blade block 403, and the upper end surface of the lower template 1 is fixedly connected to the buffer assembly, and the edges of the die body 402 and the punch body 2 are in an arc-shaped structure;

[0028] The pushing assembly includes a cavity groove 201 opened and closed inside the punch body 2, a compression spring 202 fixedly connected to the inner wall of the cavity groove 201, a pushing block 203 fixedly connected to the top of the compression spring 202, a T-slot 5 opened inside the lower template 1, a T-slot 5 slidably connected inside the T-slot 5, and a push plate 502 fixedly connected to the upper end of the T-slot 501.

[0029] In a preferred embodiment, the front and rear side walls of the punch body 2 are fitted with an L-shaped part 6, and bolts are provided on both side walls of the L-shaped part 6. The punch body 2 is fitted with the outer wall of the lower template 1 through the L-shaped part 6, and then the bolts are used to install and separate the punch body 2 and the lower template 1, which facilitates the separate selection and processing of the knife block, thereby flexibly achieving different trimming clearance conditions.

[0030] In a preferred embodiment, the buffer assembly includes a shock-absorbing spring 7 fixedly connected on both sides of the lower template 1, and the upper end of the shock-absorbing spring 7 is fixedly connected to a buffer block 702. The inner ring of the shock-absorbing spring 7 is located at the upper end surface of the lower template 1 and is fixedly connected to a damping support rod 701. The buffer block 702 performs a certain shock-absorbing and buffering effect on the lower template 1 through the shock-absorbing spring 7 and the damping support rod 701, which is used to ensure that a certain buffering effect is performed when the support block 401 contacts the buffer block 702 when it descends for cutting, effectively reducing the impact force of the support block 401 when it descends for cutting, and providing a certain buffering protection for the cutting object.

[0031] In a preferred embodiment, the lifting assembly includes a first hydraulic rod 4 fixedly connected to the inside of the upper template 102, and the support block 401 is fixedly connected at the telescopic end of the first hydraulic rod 4. The support block 401 and the die body 402 are lifted and lowered by the first hydraulic rod 4, and then the die knife block 403 and the punch knife block 302 cooperate to realize the trimming of the object, and the object is placed on the surface of the first rubber pad 3 on the punch body 2. The support block 401 and the die body 402 are driven downward, and the friction with the processed object is increased by the first rubber pad 3 to improve the stability of the object during trimming. Then, when the die knife block 403 and the punch knife block 302 cooperate to realize the trimming of the object, the object is supported by the second rubber pad 301 to reduce direct contact with the forging, thereby avoiding the generation of scratches. At the same time, the edges of the die body 402 and the punch body 2 are in an arc-shaped structure, which reduces the friction between the mold and the material and causes scratches.

[0032] In a preferred embodiment, the inner ring of the compression spring 202 is provided with a telescopic sleeve 204, and the telescopic sleeve 204 is fixedly connected to the push block 203 and the inner wall of the cavity groove 201 respectively. The provided support block 401 and the die body 402 are driven downward, and then the die knife block 403 and the punch knife block 302 cooperate to realize the trimming of the object. The push block 203 is compressed inside the cavity groove 201 by the compression spring 202 and the telescopic sleeve 204. After the trimming is completed, the push block 203 is pushed upward by the compression spring 202 to facilitate material removal.

[0033] Embodiment 2: This embodiment differs from Embodiment 1 in that the technical solution includes:

[0034] In a preferred embodiment, the rear side wall of the lower template 1 is fixedly connected to a second hydraulic rod 503, and the telescopic end of the second hydraulic rod 503 is fixedly connected to a connecting plate 504. The two ends of the connecting plate 504 are fixedly connected to the pusher plate 502. The pusher plate 502 is arranged in a Z-shaped structure, which contacts the outer walls of the lower template 1 and the punch body 2 on both sides respectively. Then, when the second hydraulic rod 503 contracts, the pusher plate 502 slides inside the lower template 1 through the T-slot 5 and the T-slider 501, thereby realizing automatic sliding pushing of the pusher generated after trimming, which is convenient for the treatment of waste materials.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] During operation, the support block 401 and the die body 402 are lifted and lowered by the first hydraulic rod 4, and then the die knife block 403 and the punch knife block 302 cooperate to realize the trimming of the object. The object is placed on the surface of the first rubber pad 3 on the punch body 2, and the support block 401 and the die body 402 are driven downward to increase the friction with the object through the first rubber pad 3 to improve the stability of the object during trimming. Then, when the die knife block 403 and the punch knife block 302 cooperate to realize the trimming of the object, the second The rubber pad 301 supports the object to reduce direct contact with the forging, thereby avoiding scratches. At the same time, the edges of the die body 402 and the punch body 2 are in an arc-shaped structure to reduce the friction between the die and the material and thus reduce scratches. Then, the buffer block 702 performs a certain shock-absorbing and buffering function on the lower template 1 through the shock-absorbing spring 7 and the damping support rod 701, which is used to ensure that a certain buffering effect is provided when the support block 401 descends to cut the edge and contacts the buffer block 702, effectively reducing the impact force when the support block 401 descends to cut the edge;

[0037] The support block 401 and the die body 402 are driven downward, and then the die blade block 403 and the punch blade block 302 cooperate to realize the trimming of the object. The pushing block 203 is compressed inside the cavity groove 201 by the compression spring 202 and the telescopic sleeve 204. After the trimming is completed, the pushing block 203 is pushed upward by the compression spring 202 to facilitate material removal. Then the push plate 502 is set in a Z-shaped structure, which contacts the outer walls on both sides of the lower template 1 and the punch body 2 respectively. Then, when the second hydraulic rod 503 is contracted, the push plate 502 slides inside the lower template 1 through the T-slot 5 and the T-slider 501, thereby realizing the automatic sliding pushing of the push material generated after trimming, which is convenient for the treatment of waste materials.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scratch-resistant hot trimming die, comprising a lower die plate (1), characterized in that: The lower template (1) is provided with a processing mechanism for trimming the object, and the processing mechanism comprises: The trimming assembly comprises a punch body (2) fitted and connected to the upper end face of a lower template (1), punch blade blocks (302) are fixedly connected to both sides of the punch body (2), a second rubber pad (301) is fixedly connected to the inner side of the punch blade block (302) located on the upper end face of the punch body (2), two groups of first rubber pads (3) are fixedly connected to the top of the punch body (2), and guide pillars (101) are fixedly connected to both sides of the lower template (1). The upper end of the lower template (1) is fixedly connected to an upper template (102), the interior of the upper template (102) is connected to a support block (401) via a lifting assembly, the lower end surface of the support block (401) is fixedly connected to a die body (402), the lower end surface of the die body (402) is fixedly connected to a die cutter block (403), and both sides of the upper end surface of the lower template (1) are fixedly connected to buffer assemblies, and the edges of the die body (402) and the punch body (2) are in an arc-shaped structure; The push assembly comprises a cavity groove (201) opened and closed inside the punch body (2), a compression spring (202) fixedly connected to the inner wall of the cavity groove (201), a push block (203) fixedly connected to the top end of the compression spring (202), a T-shaped groove (5) opened inside the lower template (1), a T-shaped slider (501) slidably connected inside the T-shaped groove (5), and a push plate (502) fixedly connected to the upper end of the T-shaped slider (501).

2. The scratch-resistant hot trimming mold according to claim 1, characterized in that: The front and rear side walls of the male mold body (2) are fitted and connected with an L-shaped piece (6), and both side walls of the L-shaped piece (6) are provided with bolts.

3. The scratch-resistant hot trimming mold according to claim 1, characterized in that: The buffer assembly comprises a shock-absorbing spring (7) fixedly connected to both sides of the lower template (1); the upper end of the shock-absorbing spring (7) is fixedly connected to a buffer block (702); and the inner ring of the shock-absorbing spring (7) is located on the upper end surface of the lower template (1) and is fixedly connected to a damping support rod (701).

4. The scratch-resistant hot trimming die according to claim 1, characterized in that: The lifting assembly comprises a first hydraulic rod (4) fixedly connected inside the upper template (102), and the support block (401) is located at the telescopic end of the first hydraulic rod (4) and is fixedly connected.

5. The scratch-resistant hot trimming die according to claim 1, characterized in that: The inner ring of the compression spring (202) is provided with a telescopic sleeve rod (204), and the telescopic sleeve rod (204) is fixedly connected to the push block (203) and the inner wall of the cavity groove (201) respectively.

6. The scratch-resistant hot trimming die according to claim 1, characterized in that: The rear side wall of the lower template (1) is fixedly connected to a second hydraulic rod (503), the telescopic end of the second hydraulic rod (503) is fixedly connected to a connecting plate (504), and both ends of the connecting plate (504) are fixedly connected to the pusher plate (502).

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