EVA (Ethylene Vinyl Acetate) forming die with cutter structure

Abstract

The utility model relates to the technical field of forming dies, and particularly discloses an EVA forming die with a cutter structure, which comprises an EVA forming die body, a deburring assembly, a limiting assembly and an adjusting assembly, the EVA forming mold body comprises a fixed mold, a movable mold, an upper mold base, a lower mold base and a cutter body; two cutter grooves are symmetrically formed in the top surface of the fixed mold; the movable mold is connected with the fixed mold; the lower die holder is fixedly arranged on the fixed die; the two cutter bodies are symmetrically and fixedly arranged on the two sides of the movable mold; the deburring assembly is arranged on the movable mold; the deburring assembly comprises an upper bayonet, a lower bayonet, a transverse moving block, a connecting rod and a vertical moving block. The two upper bayonets are symmetrically arranged on the two sides of the movable mold through limiting assemblies. The two lower bayonets are connected with the upper bayonet through an adjusting assembly; the transverse moving block is fixedly arranged on one side of the upper bayonet; the two connecting rods are fixedly arranged on the movable mold; the vertical moving block is connected with the connecting rod; the EVA forming die with the cutter structure is simple and reasonable in structure and ingenious in design.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, specifically to an EVA molding die with a cutting blade structure. Background Technology

[0002] A molding die, also known as a mold, is a mold made to scale according to the shape and structure of a real object. It is used to shape materials into a specific form through pressing or casting. Molding dies are generally used in plastic processing. Through processes such as heating, vacuuming, or filling with compressed air, the material is shaped and cooled in the mold to obtain the desired product. An EVA molding die is a tool used to process EVA (ethylene vinyl acetate) material into the desired shape. EVA material has excellent elasticity, wear resistance, cold resistance, and aging resistance, and is widely used in sports shoes, roller skates, beach shoes, sports equipment, packaging materials, and other fields.

[0003] For example, the molding die provided in Chinese utility model patent CN220482426U includes an upper mold mechanism, a lower mold mechanism, a first molding component, a second molding component, and a driving component. The first molding component includes a first guide and a first molding component. The first guide is connected to the lower mold mechanism, and the first molding component is slidably connected to the first guide. The first guide guide guides the movement of the first molding component. The second molding component includes a second guide and a second molding component. The second guide is connected to the lower mold mechanism, and the second molding component is slidably connected to the second guide. The second guide guide guides the movement of the second molding component. The driving component includes a driving block. One end of the driving block has a first inclined surface and a second inclined surface. The first molding component is slidably connected to the first inclined surface, and the second molding component is slidably connected to the second inclined surface. The above molding die can simultaneously drive the first molding component and the second molding component to detach from the product at different speeds during demolding, facilitating product demolding.

[0004] In the product processing process, EVA molding dies are required to shape the product. However, although existing EVA molding dies can cut or trim the material with a cutter, it is difficult to remove the burrs during the cutting or trimming process, which reduces the material processing efficiency and thus affects the performance of the EVA molding dies. Utility Model Content

[0005] The purpose of this invention is to provide an EVA molding die with a cutting blade structure to solve the problem mentioned in the background art of difficulty in removing burrs from materials during the cutting or trimming process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an EVA molding die with a cutting blade structure, comprising an EVA molding die body, a deburring assembly, a limiting assembly, and an adjusting assembly; the EVA molding die body includes a fixed die, a moving die, an upper die base, a lower die base, and a cutting blade body; the fixed die has two symmetrically formed cutting blade grooves on its top surface; the moving die is connected to the fixed die via several hydraulic cylinders; the upper die base is connected to the moving die via several telescopic rods and spring A; the lower die base is fixedly mounted on the fixed die; two The cutter body is symmetrically fixed on both sides of the moving mold; the deburring assembly is arranged on the moving mold; the deburring assembly includes an upper bayonet, a lower bayonet, a transverse block, a connecting rod, and a vertical block; the two upper bayonets are symmetrically arranged on both sides of the moving mold through a limiting assembly, and the upper bayonets are in sliding contact with the cutter body; the two lower bayonets are connected to the upper bayonets through an adjusting assembly; the transverse block is fixed on one side of the upper bayonet; the two connecting rods are symmetrically fixed on the side of the moving mold closer to the fixed mold; the vertical block is fixedly connected to the end of the connecting rod away from the moving mold.

[0007] Preferably, the opposing surfaces of the upper and lower bayonets are both arc-shaped structures.

[0008] Preferably, both the horizontal and vertical moving blocks are right-angled triangular structures, and the inclined surfaces of the horizontal and vertical moving blocks are in sliding contact.

[0009] Preferably, the limiting component includes a limiting groove, a limiting block, a connecting block, and a spring B; two limiting grooves are symmetrically opened on both sides of the moving mold; the limiting block slides through the limiting groove; the connecting block is fixed on the limiting block and fixedly connected to the upper bayonet; the two ends of the spring B are fixedly connected to the inner wall of the limiting groove and the limiting block, respectively.

[0010] Preferably, the limiting block has an isosceles trapezoidal structure, and the dimension of the limiting block on the side closer to the upper bayonet is smaller than the dimension of the limiting block on the side farther from the upper bayonet.

[0011] Preferably, the adjustment assembly includes a fixed block, a guide rod, a rotating groove, a rotating block, and an adjusting screw; the fixed block is fixedly mounted on one side of the lower bayonet; the guide rod is slidably mounted on the connecting block and fixedly connected to the fixed block; the fixed block has a rotating groove on the side near the connecting block; the rotating block is rotatably mounted in the rotating groove; the adjusting screw is screwed onto the connecting block and fixedly connected to the rotating block.

[0012] Preferably, the rotating block has a T-shaped structure that is smaller at the top and larger at the bottom.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a deburring component and a limiting component, places the material to be formed on the lower mold base. Then, a hydraulic cylinder moves the moving mold closer to the fixed mold, causing the cutter body to cut the material until the upper mold base contacts the material surface. At this time, driven by the hydraulic cylinder, the telescopic rod and spring A on the upper mold base are forced to contract, causing the inclined surface of the vertical moving block to press against the inclined surface of the horizontal moving block. The horizontal moving block drives the upper bayonet to move through the connecting block, and the adjusting component synchronously drives the lower bayonet to move, causing the limiting block to slide in the limiting groove, causing spring B to contract, and causing the upper bayonet to... The blade and the lower bayonet can remove burrs from the side edges and corners of the material until the telescopic rod retracts to its maximum extent. At this point, the removal of burrs from the side edges and corners of the material is completed. Subsequently, by controlling the hydraulic cylinder, the moving mold moves away from the fixed mold. Under the elastic force of spring A, the upper mold base moves back to its original position, and under the elastic force of spring B, the upper and lower bayonets move back to their original positions. Compared with the prior art, this utility model has a simple and reasonable structure and ingenious design, which can facilitate the removal of burrs from materials during the cutting or trimming process, greatly improving the processing efficiency of materials.

[0015] 2. This utility model, by setting an adjustment component, allows for the adjustment of the material thickness to be formed by rotating the knob on the adjusting screw, which then connects the adjusting screw to the connecting block via a thread. This causes the rotating block to rotate within the rotating groove. Because the rotating block has a T-shaped structure that is smaller at the top and larger at the bottom, its position can be easily restricted within the rotating groove. This allows the lower bayonet to move closer to or further away from the upper bayonet, and the guide rod to slide on the connecting block until the lower bayonet moves to the appropriate position. This makes this utility model applicable to the forming of materials of different thicknesses, greatly improving its adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the upper mold base structure of this utility model;

[0019] Figure 4 This is a partially disassembled sectional view of the present invention.

[0020] Figure 5 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0021] In the diagram: 1. EVA molding die body; 2. Deburring assembly; 3. Limiting assembly; 4. Adjusting assembly; 101. Fixed mold; 102. Moving mold; 103. Upper mold base; 104. Lower mold base; 105. Cutting blade body; 201. Upper bayonet; 202. Lower bayonet; 203. Horizontal moving block; 204. Connecting rod; 205. Vertical moving block; 301. Limiting groove; 302. Limiting block; 303. Connecting block; 304. Spring B; 401. Fixing block; 402. Guide rod; 403. Rotating groove; 404. Rotating block; 405. Adjusting screw. Detailed Implementation

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

[0023] Please see Figures 1 to 5 This utility model provides a technical solution: an EVA molding die with a cutting structure, including an EVA molding die body 1, a deburring component 2, a limiting component 3, and an adjusting component 4; the EVA molding die body 1 includes a fixed die 101, a moving die 102, an upper die base 103, a lower die base 104, and a cutting body 105; the fixed die 101 has two symmetrically formed cutting grooves on its top surface; the moving die 102 is connected to the fixed die 101 through four hydraulic cylinders; the upper die base 103 is connected to the moving die 102 through six telescopic rods and spring A; the lower die base 104 is fixed on the fixed die 101; the two cutting bodies 105 are symmetrically fixed on both sides of the moving die 102; the deburring component 2 is arranged on the moving die 102;

[0024] The deburring assembly 2 includes an upper bayonet 201, a lower bayonet 202, a transverse block 203, a connecting rod 204, and a vertical block 205. Two upper bayonets 201 are symmetrically positioned on both sides of the moving mold 102 via a limiting assembly 3, and the upper bayonets 201 slide in contact with the cutter body 105. Two lower bayonets 202 are connected to the upper bayonets 201 via an adjusting assembly 4. The transverse block 203 is fixed to one side of the upper bayonet 201. Two connecting rods 204 are symmetrically fixed to the side of the moving mold 102 closest to the fixed mold 101. The vertical block 205 is fixedly connected to the end of the connecting rod 204 away from the moving mold 102. The opposing surfaces of the upper bayonet 201 and lower bayonet 202 are both arc-shaped structures. The transverse block 203 and vertical block 205 are both right-angled triangular structures, and the inclined surface of the transverse block 203 slides in contact with the inclined surface of the vertical block 205.

[0025] The limiting component 3 includes a limiting groove 301, a limiting block 302, a connecting block 303, and a spring B304; two limiting grooves 301 are symmetrically opened on both sides of the moving mold 102; the limiting block 302 slides through the limiting groove 301; the connecting block 303 is fixedly mounted on the limiting block 302 and fixedly connected to the upper bayonet 201; the two ends of the spring B304 are fixedly connected to the inner wall of the limiting groove 301 and the limiting block 302, respectively; the limiting block 302 has an isosceles trapezoidal structure, and the size of the limiting block 302 on the side closer to the upper bayonet 201 is smaller than the size of the limiting block 302 on the side farther away from the upper bayonet 201, so as to facilitate the restriction of the position of the upper bayonet 201.

[0026] This invention, by setting up a deburring component 2 and a limiting component 3, places the material to be formed on the lower mold base 104. Then, a hydraulic cylinder moves the moving mold 102 closer to the fixed mold 101, causing the cutter body 105 to cut the material until the upper mold base 103 contacts the material surface. At this time, driven by the hydraulic cylinder, the telescopic rod and spring A on the upper mold base 103 are compressed, causing the inclined surface of the vertical moving block 205 to press against the inclined surface of the horizontal moving block 203. The horizontal moving block 203 drives the upper bayonet 201 to move through the connecting block 303, and synchronously drives the lower bayonet 202 to move through the adjusting component 4. The limiting block 302 slides in the limiting groove 301, causing the spring B to... When 304 contracts under force, the upper bayonet 201 and lower bayonet 202 can remove burrs from the side edges and corners of the material until the telescopic rod retracts to its maximum extent. At this point, the removal of burrs from the side edges and corners of the material is completed. Subsequently, by controlling the hydraulic cylinder, the moving mold 102 moves away from the fixed mold 101. Under the elastic force of spring A, the upper mold base 103 moves back to its original position, and under the elastic force of spring B304, the upper bayonet 201 and lower bayonet 202 move back to their original positions. Compared with the prior art, this utility model has a simple and reasonable structure and ingenious design, which can facilitate the removal of burrs from materials during cutting or trimming, greatly improving the processing efficiency of materials.

[0027] In a preferred embodiment, the adjusting component 4 includes a fixed block 401, a guide rod 402, a rotating groove 403, a rotating block 404, and an adjusting screw 405; the fixed block 401 is fixedly mounted on one side of the lower bayonet 202; the guide rod 402 is slidably mounted on the connecting block 303 and fixedly connected to the fixed block 401; the fixed block 401 has a rotating groove 403 on the side near the connecting block 303; the rotating block 404 is rotatably mounted in the rotating groove 403; the adjusting screw 405 is screwed onto the connecting block 303 and fixedly connected to the fixed block 401. Rotating block 404 is fixedly connected; rotating block 404 has a T-shaped structure with a smaller top and a larger bottom; when the retracting rod is retracted to its maximum extent, the inclined surface of the horizontal moving block 203 is still in contact with the inclined surface of the vertical moving block 205, and the spring B304 can still retract; the thickness of the lower mold base 104 is less than the thickness of the material to be formed; when the side of the limiting block 302 is in contact with the inner wall of the limiting groove 301, the upper bayonet 201 and the lower bayonet 202 do not overlap with the lower mold base 104; the hardness of the material to be formed is less than the elastic force of the spring A.

[0028] This invention, by setting an adjustment component 4, allows for the rotation of a knob on an adjusting screw 405 to connect the adjusting screw 405 to a connecting block 303, based on the required material thickness. This causes the rotating block 404 to rotate within the rotating groove 403. Since the rotating block 404 has a T-shaped structure (smaller at the top, larger at the bottom), its position can be easily confined within the rotating groove 403. This allows the lower bayonet 202 to move closer to or further away from the upper bayonet 201, and the guide rod 402 to slide on the connecting block 303 until the lower bayonet 202 reaches the appropriate position. This makes the invention applicable to the molding of materials of different thicknesses, greatly improving its adaptability.

[0029] Working Principle: In use, firstly, according to the required material thickness, rotate the knob on the adjusting screw 405 to connect the adjusting screw 405 to the connecting block 303. This causes the rotating block 404 to rotate within the rotating groove 403, moving the lower bayonet 202 closer to or further away from the upper bayonet 201. The guide rod 402 slides on the connecting block 303 until the lower bayonet 202 reaches the appropriate position. Then, place the material to be formed on the lower mold base 104. Next, the hydraulic cylinder moves the moving mold 102 closer to the fixed mold 101, causing the cutter body 105 to cut the material until the upper mold base 103 contacts the material surface. At this point, driven by the hydraulic cylinder, the telescopic rod and spring A on the upper mold base 103 contract under pressure, causing the vertical moving block... The inclined surface of 205 presses against the inclined surface of the transverse block 203, causing the transverse block 203 to move the upper bayonet 201 through the connecting block 303, and simultaneously move the lower bayonet 202 through the adjusting component 4, causing the limiting block 302 to slide in the limiting groove 301, causing the spring B304 to contract under force, so that the upper bayonet 201 and the lower bayonet 202 can remove the burrs on the side corners of the material until the telescopic rod is contracted to the maximum extent. At this time, the removal of burrs on the side corners of the material is completed. Subsequently, by controlling the hydraulic cylinder, the moving mold 102 moves away from the fixed mold 101. Under the elastic force of the spring A, the upper mold base 103 will move back to its original position, and under the elastic force of the spring B304, the upper bayonet 201 and the lower bayonet 202 will move back to their original positions.

[0030] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An EVA molding die with a cutting blade structure, characterized in that, The system includes an EVA molding die body (1), a deburring assembly (2), a limiting assembly (3), and an adjusting assembly (4); the EVA molding die body (1) includes a fixed die (101), a moving die (102), an upper die base (103), a lower die base (104), and a cutter body (105); the fixed die (101) has two symmetrically arranged cutter slots on its top surface; the moving die (102) is connected to the fixed die (101) by several hydraulic cylinders; the upper die base (103) is connected to the moving die (102) by several telescopic rods and spring A; the lower die base (104) is fixed on the fixed die (101); the two cutter bodies (105) are symmetrically fixed on both sides of the moving die (102); the deburring assembly (2) is arranged on the moving die (102). 02) The deburring assembly (2) includes an upper bayonet (201), a lower bayonet (202), a transverse block (203), a connecting rod (204), and a vertical block (205); the two upper bayonets (201) are symmetrically arranged on both sides of the moving mold (102) through a limiting assembly (3), and the upper bayonet (201) slides in contact with the cutter body (105); the two lower bayonets (202) are connected to the upper bayonet (201) through an adjusting assembly (4); the transverse block (203) is fixed on one side of the upper bayonet (201); the two connecting rods (204) are symmetrically fixed on the side of the moving mold (102) near the fixed mold (101); the vertical block (205) is fixedly connected to the end of the connecting rod (204) away from the moving mold (102).

2. The EVA molding die with a cutting blade structure according to claim 1, characterized in that, The upper bayonet (201) and lower bayonet (202) have arc-shaped structures on their opposite sides.

3. The EVA molding die with a cutting blade structure according to claim 1, characterized in that, Both the horizontal moving block (203) and the vertical moving block (205) are right-angled triangular structures, and the inclined surface of the horizontal moving block (203) and the inclined surface of the vertical moving block (205) are in sliding contact.

4. The EVA molding die with a cutting blade structure according to claim 1, characterized in that, The limiting component (3) includes a limiting groove (301), a limiting block (302), a connecting block (303), and a spring B (304); two limiting grooves (301) are symmetrically opened on both sides of the moving mold (102); the limiting block (302) slides through the limiting groove (301); the connecting block (303) is fixed on the limiting block (302) and fixedly connected to the upper bayonet (201); the two ends of the spring B (304) are fixedly connected to the inner wall of the limiting groove (301) and the limiting block (302) respectively.

5. An EVA molding die with a cutting blade structure according to claim 4, characterized in that, The limiting block (302) has an isosceles trapezoidal structure, and the dimension of the limiting block (302) on the side closer to the upper bayonet (201) is smaller than the dimension of the limiting block (302) on the side farther away from the upper bayonet (201).

6. An EVA molding die with a cutting blade structure according to claim 4, characterized in that, The adjustment assembly (4) includes a fixed block (401), a guide rod (402), a rotating groove (403), a rotating block (404), and an adjusting screw (405); the fixed block (401) is fixedly mounted on one side of the lower bayonet (202); the guide rod (402) slides through the connecting block (303) and is fixedly connected to the fixed block (401); the fixed block (401) has a rotating groove (403) on the side near the connecting block (303); the rotating block (404) rotates through the rotating groove (403); the adjusting screw (405) is screwed onto the connecting block (303) and is fixedly connected to the rotating block (404).

7. An EVA molding die with a cutting blade structure according to claim 6, characterized in that, The rotating block (404) has a T-shaped structure with a smaller top and a larger bottom.

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