Automatic forming machine for wear-resistant and anti-skid in-mold pressing shoe sole and preparation process of automatic forming machine

Abstract

The invention relates to the technical field of sole production, in particular to an automatic forming machine for wear-resistant and anti-skid in-mold pressing soles and a preparation process thereof.The automatic forming machine comprises a workbench, supporting legs are fixedly installed on the two sides of the lower end of the workbench, shielding assemblies are installed on the two sides of the workbench, and a pressing assembly is installed at the upper end of the workbench and located in the shielding assemblies; a heating assembly is installed on the pressing assembly, an upper die box is installed at the lower end of the heating assembly, a lower die box is fixedly installed in the middle of the upper end of the workbench, fixing assemblies are installed on the two sides of the upper die box and the two sides of the lower die box, a male die is installed in the upper die box, and a female die is installed in the lower die box. The male die and the female die can be clamped and fixed to the upper die box and the lower die box through the fixing assemblies respectively, so that a user can replace the male die and the female die conveniently, the use universality is improved, meanwhile, matching of the male die and the female die is completed through the limiting columns and the limiting holes, the dislocation situation can be reduced, and the shoe sole manufacturing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sole production, in particular to an automatic molding machine for in-mold pressing soles with wear resistance and anti-slip properties and its preparation process. Background Art

[0002] In-mold pressing soles, also known as in-mold micro-foaming or mold pressing foaming, are an efficient and precise sole manufacturing method. In-mold pressing soles have the advantages of high production efficiency, high precision, material saving, and strong plasticity. Therefore, in-mold pressing soles are widely used in the production of various types of shoes, such as hiking shoes, mountaineering shoes, slippers, sandals, etc. Especially the application of thermoplastic polymer materials such as EVA makes in-mold pressing soles have significant advantages in terms of softness, elasticity, shock absorption, etc., thus meeting the requirements of different consumers for sole performance. With the continuous progress of technology and the continuous improvement of consumers' requirements for sole performance, the in-mold pressing sole process is also constantly innovating and developing.

[0003] For example, publication number: CN111590805A, a hot pressing forming process for labor protection soles, and a hot pressing forming device is used in the process of hot pressing labor protection soles. The device includes a workbench, a work hole is opened at the center of the workbench, a work plate is arranged inside the work hole, and the work hole and the work plate cooperate to form a movement groove. A double-shaft extension motor is fixed at the center of the lower surface of the work plate, and transmission rollers are respectively arranged at the four corners of the lower surface of the work plate. A transmission chain is installed between the transmission rollers, and a number of evenly distributed transmission rods are fixed on the upper surface of the transmission chain. A template is fixed at the top of the transmission rod. A work bin is arranged on the upper surface of the workbench, and a feeding pipe, a hot pressing rod, and a vertical air guiding pipe are arranged on the inner top wall of the work bin; by driving the transmission chain to move through the transmission rollers, and then driving the template to move along the movement groove, the hot pressing forming process of labor protection soles is completely automated, greatly improving the preparation efficiency of labor protection soles.

[0004] Another example is publication number: CN221365971U, an automatic sole molding machine, including a workbench. A first bracket is fixedly connected to the left rear end of the top of the workbench, and a second hydraulic rod is fixedly connected to the lower end of the outside of the first bracket. The telescopic end of the second hydraulic rod is fixedly connected to a second bracket, and a hollow plate is fixedly connected to the front surface of the second bracket. A plurality of equally spaced air outlet pipes are communicated with the bottom of the hollow plate. The present utility model is provided with a hollow plate, a blower, a second bracket, a second hydraulic rod, and an air outlet pipe. After the molding is completed, control the second hydraulic rod to contract, so that the hollow plate is located directly below the upper mold, and turn on the blower, the air can be conveyed into the hollow plate and discharged from the air outlet pipe, so as to achieve the purpose of blowing and cooling the molded sole. A third hydraulic rod, a third bracket, a connecting rod, and a sliding plate are provided. By controlling the telescopic movement of the third hydraulic rod, the sliding plate can be driven to move back and forth, so as to achieve the purpose of automatic feeding and discharging.

[0005] However, most of the above-mentioned technical solution molds are directly fixedly installed on the overall structure, which is inconvenient to replace the templates during use, thus inconvenient to change the shape of the sole production. At the same time, during the use process, the combination of the molds is prone to misalignment, thus affecting the effect of sole production. Summary of the Invention

[0006] To overcome the technical defects existing in the prior art, the present invention provides an automatic molding machine for wear-resistant and anti-slip in-mold pressing soles and its preparation process, which has the advantages of convenient mold replacement and not easy to generate misalignment. Through the fixing components, the male mold and the female mold can be respectively clamped and fixed on the upper mold box and the lower mold box, so that the user can conveniently replace the male mold and the female mold, improving the versatility of use. At the same time, the cooperation of the male mold and the female mold is completed through the limit posts and limit holes, so that the occurrence of misalignment can be reduced, and the effect of sole production is improved.

[0007] The technical solution adopted by the present invention is: an automatic molding machine for wear-resistant and anti-slip in-mold pressing soles and its preparation process, including a workbench. Both sides of the lower end of the workbench are fixedly installed with support feet. Shielding components are installed on both sides of the workbench. A pressing component is installed on the upper end of the workbench. The pressing component is located inside the shielding components. A heating component is installed on the pressing component. The lower end of the heating component is installed with an upper mold box. A lower mold box is fixedly installed at the middle position of the upper end of the workbench. Fixing components are installed on both sides of the upper mold box and the lower mold box. A male mold is installed in the upper mold box, and a female mold is installed in the lower mold box. During use, first, the structure is fixed at the use location through the support feet. Subsequently, the male mold and the female mold are respectively clamped and fixed on the upper mold box and the lower mold box through the fixing components. Then, the raw materials are placed in the female mold. The pressing component drives the heating component, the upper mold box, and the male mold to move, so that the male mold is combined with the female mold. Subsequently, the heating component heats the raw materials through the upper mold box and the male mold, so that the raw materials melt, combine, and expand, thus completing the production of the sole. Subsequently, the heating component, the upper mold box, and the male mold are reset. Then, the sole is taken off from the female mold. Subsequently, post-treatment is carried out, and after treatment, it is packaged to complete the production of the sole.

[0008] Preferably, in order to install the structure at an external use location, fixing holes are provided at the four corner positions of the lower end of the support feet, and expansion bolts are arranged in the fixing holes, and the expansion bolts are connected to the external use location.

[0009] Preferably, in order to improve the safety during use, the shielding component includes mounting seats, a shielding cover is installed between the mounting seats. The shielding cover is made of transparent material, and a rotating column is fixedly installed at one corner of each side of the shielding cover. The rotating column is rotationally clamped on the mounting seat. A handle is fixedly installed on one side of the shielding cover.

[0010] Preferably, in order to drive the heating component, the upper mold box and the punch to lift, so as to complete the pressing, the pressing component includes a lifting slide rail, which is fixedly installed on both sides of the upper end of the workbench, and a lifting chute is opened on the lifting slide rail. A pressing threaded rod is rotationally clamped in the lifting chute. An installation plate is fixedly installed at the upper end of the lifting slide rail, and control motors are fixedly installed on both sides of the upper end of the installation plate. The output end of the control motor is connected to the upper end of the pressing threaded rod. A lifting plate is arranged between the lifting slide rails. Both ends of the lifting plate are slidably clamped in the lifting chute, and both ends of the lifting plate are threadedly sleeved on the pressing threaded rod.

[0011] Preferably, in order to heat the raw materials, so as to complete the production of the sole, the heating component includes a heating box, which is fixedly installed at the lower end of the lifting plate. Infrared heating rods are uniformly fixedly installed inside the heating box. A blocking ring is fixedly installed inside the heating box, and the blocking ring is located below the infrared heating rods. The upper mold box is slidably clamped inside the heating box, and the upper end of the upper mold box is in contact with the lower end of the blocking ring. Connecting bolts are arranged at both ends of both sides of the heating box, and one end of the connecting bolt is threadedly connected to both sides of the upper mold box.

[0012] Preferably, in order to fix the punch and the die, and at the same time facilitate the replacement of the punch and the die, the fixing component includes a screw rod, which is threadedly installed at both ends of both sides of the upper mold box and the lower mold box, and a knob is fixedly installed at one end of the screw rod. Anti-slip grooves are opened on the knob, and the knob is located on the outer sides of both sides of the upper mold box and the lower mold box. A clamping rod is installed at the other end of the screw rod. The screw rod is rotationally clamped at both ends of one side of the clamping rod, and the other side of the clamping rod is clamped on both sides of the punch and the die.

[0013] Preferably, in order to limit the punch and the die, so as to reduce the occurrence of misalignment, limiting columns are fixedly installed at the four corner positions of the lower end of the punch, and limiting holes are opened at the four corner positions of the upper end of the die. The limiting columns are matched with the limiting holes.

[0014] The process of preparing wear-resistant and anti-slip in-mold pressing soles with the described automatic molding machine includes the following steps: Step 1. Preparation of the mold: First, make the punch and the die according to the shape and size of the sole to be prepared, and then install the punch and the die on the upper mold box and the lower mold box through the fixing component; Step 2. Preparation and mixing of raw materials: Prepare 100 parts of natural rubber, styrene-butadiene rubber, and recycled rubber respectively, then crush them into granules and pour them into a mixer. Then pour 3 parts of antioxidant, 8 parts of zinc oxide particles, 3 parts of accelerator, 5 parts of sulfur powder, and 1 part of salicylic acid powder into the mixer. Then start the mixer to mix the materials evenly to make the raw materials for sole preparation. Step 3. Pressing process: Spray isolation liquid on the male mold and the female mold. Then weigh the raw materials prepared in Step 2 and put them into the female mold. Subsequently, the pressing assembly drives the heating assembly, the upper mold box, and the male mold to move until the male mold and the female mold are combined. Then the heating assembly heats the male mold through the upper mold box so that the raw materials can be heated at 150°C - 175°C for 10 - 20 minutes. Subsequently, the pressing assembly drives the heating assembly, the upper mold box, and the male mold to reset. Step 4. Demolding and post-treatment: Take the pressed sole off the female mold. Then trim the side of the sole and inspect the sole for conditions such as elasticity, hardness, and wear resistance. After the inspection is completed, pack the sole to complete the preparation of the sole.

[0015] The beneficial effects of the present invention are as follows: The male mold and the female mold can be respectively clamped and fixed on the upper mold box and the lower mold box through the fixing assembly, so that it is convenient for users to replace the male mold and the female mold, improving the universality of use. At the same time, the cooperation between the male mold and the female mold is completed through the limit posts and limit holes, so that the occurrence of dislocation can be reduced, and the effect of sole production is improved. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the workbench in the present invention.

[0018] Figure 3 It is a partial schematic diagram of the structure of the shielding assembly in the present invention.

[0019] Figure 4 It is a connection schematic diagram of the pressing assembly, the heating assembly, and the fixing assembly in the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the pressing assembly in the present invention.

[0021] Figure 6 It is a half-sectional view of the heating assembly in the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the lower mold box in the present invention.

[0023] Figure 8 It is a half-sectional view of the fixing assembly in the present invention.

[0024] Description of reference numerals: In the figure: 1, workbench; 2, support feet; 3, shielding assembly; 301, mounting base; 302, shielding cover; 303, rotating column; 304, handle; 4, pressing assembly; 401, lifting slide rail; 402, lifting chute; 403, pressing threaded rod; 404, mounting plate; 405, control motor; 406, lifting plate; 5, heating assembly; 501, heating box; 502, infrared heating rod; 503, blocking ring; 504, connecting bolt; 6, upper mold box; 7, lower mold box; 8, fixing assembly; 801, screw; 802, knob; 803, clamping rod; 9, convex mold; 10, concave mold; 11, expansion bolt; 12, limit post; 13, limit hole. Specific implementation mode

[0025] The present invention will be further described below with reference to the accompanying drawings: As Figures 1-8 shown, this embodiment provides an automatic molding machine for in-mold pressing anti-wear and anti-slip shoe soles and its preparation process, including a workbench 1. Support feet 2 are fixedly installed on both sides of the lower end of the workbench 1. A shielding assembly 3 is installed on both sides of the workbench 1. A pressing assembly 4 is installed on the upper end of the workbench 1. The pressing assembly 4 is located inside the shielding assembly 3. A heating assembly 5 is installed on the pressing assembly 4. A lower mold box 7 is fixedly installed at the middle position of the upper end of the workbench 1. Fixing assemblies 8 are installed on both sides of the upper mold box 6 and the lower mold box 7. A convex mold 9 is installed in the upper mold box 6, and a concave mold 10 is installed in the lower mold box 7. When in use, first, this structure is fixed at the use location through the support feet 2. Subsequently, the convex mold 9 and the concave mold 10 are respectively clamped and fixed on the upper mold box 6 and the lower mold box 7 through the fixing assembly 8. Subsequently, the raw material is placed in the concave mold 10. The pressing assembly 4 drives the heating assembly 5, the upper mold box 6, and the convex mold 9 to move, so that the convex mold 9 is combined with the concave mold 10. Subsequently, the heating assembly 5 heats the raw material through the upper mold box 6 and the convex mold 9, so that the raw material melts, combines, and expands, thereby completing the production of the shoe sole. Subsequently, the heating assembly 5, the upper mold box 6, and the convex mold 9 are reset. Then, the shoe sole is removed from the concave mold 10. Subsequently, post-treatment is carried out, and after treatment, it is packaged to complete the production of the shoe sole.

[0026] Fixing holes are provided at the four corner positions of the lower end of the support feet 2. Expansion bolts 11 are arranged in the fixing holes, and the expansion bolts 11 are connected to the external use location. When in use, first, this structure is placed at the use location, and then it is fixed through the expansion bolts 11.

[0027] The shielding component 3 includes a mounting base 301, with a shielding cover 302 installed between the mounting bases 301. The shielding cover 302 is made of a transparent material, and at one corner on each side of the shielding cover 302, a rotating column 303 is fixedly installed. The rotating column 303 is rotatably clamped on the mounting base 301. A handle 304 is fixedly installed on one side of the shielding cover 302. During use, the shielding cover 302 can be opened through the handle 304, thus facilitating the operation of the user.

[0028] The fixing component 8 includes a screw rod 801, which is threadedly installed at both ends on both sides of the upper die box 6 and the lower die box 7. And at one end of the screw rod 801, a knob 802 is fixedly installed. Anti-slip grooves are provided on the knob 802. The knob 802 is located on the outer sides of both sides of the upper die box 6 and the lower die box 7. At the other end of the screw rod 801, a clamping rod 803 is installed. The screw rod 801 is rotatably clamped at both ends on one side of the clamping rod 803, and the other side of the clamping rod 803 is clamped on both sides of the punch 9 and the die 10. During use, the punch 9 and the die 10 are respectively installed on the upper die box 6 and the lower die box 7, and then the knob 802 is rotated. The knob 802 drives the clamping rod 803 to move through the screw rod 801, so as to drive the clamping rod 803 to clamp and fix the punch 9 and the die 10.

[0029] The pressing component 4 includes lifting slide rails 401, which are fixedly installed on both sides at the upper end of the workbench 1. And lifting sliding grooves 402 are provided in the lifting slide rails 401. A pressing threaded rod 403 is rotatably clamped in the lifting sliding grooves 402. At the upper end of the lifting slide rails 401, a mounting plate 404 is fixedly installed. On both sides at the upper end of the mounting plate 404, control motors 405 are fixedly installed. The output end of the control motor 405 is connected to the upper end of the pressing threaded rod 403. Between the lifting slide rails 401, a lifting plate 406 is provided. Both ends of the lifting plate 406 are slidably clamped in the lifting sliding grooves 402, and both ends of the lifting plate 406 are threadedly sleeved on the pressing threaded rod 403. During use, the control motor 405 can drive the pressing threaded rod 403 to rotate, so as to drive the lifting plate 406 to lift and lower, enabling the heating component 5, the upper die box 6 and the punch 9 to lift and lower.

[0030] At the four corner positions at the lower end of the punch 9, limit posts 12 are fixedly installed respectively. At the four corner positions at the upper end of the die 10, limit holes 13 are provided respectively. The limit posts 12 cooperate with the limit holes 13. During use, the punch 9 can be clamped on the die 10 through the limit posts 12 and the limit holes 13.

[0031] The heating assembly 5 includes a heating box 501, which is fixedly installed at the lower end of the lifting plate 406. Infrared heating rods 502 are evenly and fixedly installed inside the heating box 501. A blocking ring 503 is fixedly installed inside the heating box 501, and the blocking ring 503 is located below the infrared heating rods 502. The upper die box 6 is slidably clamped inside the heating box 501, and the upper end of the upper die box 6 is in contact with the lower end of the blocking ring 503. Connecting bolts 504 are provided at both ends of the two sides of the heating box 501, and one end of the connecting bolt 504 is threadedly connected to both sides of the upper die box 6. During use, the upper die box 6 can be installed in the heating box 501 through the connecting bolts 504, and the infrared heating rods 502 can heat the punch 9 through the upper die box 6, thereby heating the raw material, causing the raw material to melt, combine and expand, and thus completing the production of the shoe sole.

[0032] The preparation process of the wear-resistant and anti-slip in-mold pressing shoe sole includes the following steps: Preparation of the mold: First, the punch 9 and the die 10 are made according to the shape and size of the shoe sole to be prepared, and then the punch 9 and the die 10 are installed on the upper die box 6 and the lower die box 7 through the fixing assembly 8. Preparation and mixing of the raw materials: Prepare 100 parts each of natural rubber, styrene-butadiene rubber and recycled rubber, then crush them into granules and pour them into a mixer, and then pour 3 parts of antioxidant, 8 parts of zinc oxide particles, 3 parts of accelerator, 5 parts of sulfur powder and 1 part of salicylic acid powder into the mixer, and then start the mixer to mix the materials evenly, thereby making the raw materials for shoe sole preparation. Pressing and processing: Spray isolation liquid on the punch 9 and the die 10, then weigh the raw materials prepared in the second step and put them into the die 10. Subsequently, the pressing assembly 4 drives the heating assembly 5, the upper die box 6 and the punch 9 to move until the punch 9 and the die 10 are combined. Subsequently, the heating assembly 5 heats the punch 9 through the upper die box 6, so that the raw material can be heated at 150°C - 175°C for 10 - 20 minutes. Subsequently, the pressing assembly 4 drives the heating assembly 5, the upper die box 6 and the punch 9 to reset. Demoulding and post-treatment: Take the pressed shoe sole off the die 10, then trim the side of the shoe sole, and inspect the shoe sole for conditions such as elasticity, hardness and wear resistance. After the inspection is completed, pack the shoe sole to complete the preparation of the shoe sole.

[0033] First, place this structure at the usage location, and then fix it with expansion bolts 11. The shielding cover 302 can be opened through the handle 304, which facilitates the operation of the user. Install the punch 9 and the die 10 on the upper die box 6 and the lower die box 7 respectively. Then, rotate the knob 802. The knob 802 drives the clamping rod 803 to move through the screw rod 801, so as to drive the clamping rod 803 to clamp and fix the punch 9 and the die 10. Then, put the raw material into the die 10. Controlling the motor 405 can drive the pressing threaded rod 403 to rotate, so as to drive the lifting plate 406 to lift and lower, enabling the heating assembly 5, the upper die box 6 and the punch 9 to lift and lower. The punch 9 can be clamped on the die 10 through the limit posts 12 and the limit holes 13. The upper die box 6 can be installed in the heating box 501 through the connecting bolts 504. The infrared heating rod 502 can heat the punch 9 through the upper die box 6, so as to heat the raw material, making the raw material melt, combine and expand, thus completing the production of the sole. Then, trim the side of the sole and test the elasticity, hardness, wear resistance and other conditions of the sole. After the test is completed, pack the sole to complete the preparation of the sole.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An automatic forming machine for wear-resistant and non-slip in-mold shoe soles, comprising a workbench (1), wherein both sides of the lower end of the workbench (1) are fixedly mounted with support feet (2), characterized in that: Shielding components (3) are installed on both sides of the workbench (1); a pressing component (4) is installed on the upper end of the workbench (1); the pressing component (4) is located inside the shielding component (3); a heating component (5) is installed on the pressing component (4); an upper mold box (6) is installed on the lower end of the heating component (5); a lower mold box (7) is fixedly installed in the middle position of the upper end of the workbench (1); fixing components (8) are installed on both sides of the upper mold box (6) and the lower mold box (7); a convex mold (9) is installed in the upper mold box (6); and a concave mold (10) is installed in the lower mold box (7).

2. The automatic forming machine for wear-resistant and non-slip in-mold shoe soles according to claim 1, characterized in that: Fixing holes are provided at the four corners of the lower end of the support leg (2), expansion bolts (11) are provided in the fixing holes, and the expansion bolts (11) are connected to an external use location.

3. The automatic forming machine for wear-resistant and non-slip in-mold shoe soles according to claim 1, characterized in that: The shielding assembly (3) comprises a mounting seat (301), a shielding cover (302) is mounted between the mounting seats (301), the shielding cover (302) is made of a transparent material, and a rotating column (303) is fixedly mounted on one corner of both sides of the shielding cover (302), the rotating column (303) is rotatably clamped on the mounting seat (301), and a handle (304) is fixedly mounted on one side of the shielding cover (302).

4. The automatic forming machine for wear-resistant and non-slip in-mold shoe soles according to claim 1, characterized in that: The pressing assembly (4) comprises a lifting rail (401), wherein the lifting rail (401) is fixedly mounted on both sides of the upper end of the workbench (1), and a lifting groove (402) is provided on the lifting rail (401), a pressing threaded rod (403) is rotatably clamped in the lifting groove (402), a mounting plate (404) is fixedly mounted on the upper end of the lifting rail (401), and a control motor (405) is fixedly mounted on both sides of the upper end of the mounting plate (404), and an output end of the control motor (405) is connected to the upper end of the pressing threaded rod (403), and a lifting plate (406) is arranged between the lifting rails (401), and both ends of the lifting plate (406) are slidably clamped in the lifting groove (402), and both ends of the lifting plate (406) are threadedly sleeved on the pressing threaded rod (403).

5. The automatic forming machine for wear-resistant and non-slip in-mold shoe soles according to claim 4, characterized in that: The heating assembly (5) comprises a heating box (501), wherein the heating box (501) is fixedly mounted at the lower end of the lifting plate (406), an infrared heating rod (502) is evenly and fixedly mounted inside the heating box (501), a blocking ring (503) is fixedly mounted inside the heating box (501), and the blocking ring (503) is located below the infrared heating rod (502), the upper mold box (6) is slidably engaged inside the heating box (501), and the upper end of the upper mold box (6) is in contact with the lower end of the blocking ring (503), and connecting bolts (504) are provided at both ends of both sides of the heating box (501), and one end of the connecting bolt (504) is threadedly connected to both sides of the upper mold box (6).

6. The automatic forming machine for wear-resistant and non-slip in-mold shoe soles according to claim 1, characterized in that: The fixing assembly (8) comprises a screw rod (801), wherein the screw rod (801) is threadedly mounted on both ends of the upper mold box (6) and the lower mold box (7), and a knob (802) is fixedly mounted on one end of the screw rod (801), and an anti-slip groove is provided on the knob (802). The knob (802) is located on both sides of the exterior of the upper mold box (6) and the lower mold box (7), and a clamping rod (803) is mounted on the other end of the screw rod (801). The screw rod (801) is rotatably clamped on both ends of one side of the clamping rod (803), and the other side of the clamping rod (803) is clamped on both sides of the male mold (9) and the female mold (10).

7. The automatic forming machine for wear-resistant and non-slip in-mold shoe soles according to claim 1, characterized in that: Limiting columns (12) are fixedly mounted at the four corners of the lower end of the male die (9), and limiting holes (13) are provided at the four corners of the upper end of the female die (10), wherein the limiting columns (12) cooperate with the limiting holes (13).

8. A process for preparing a wear-resistant and non-slip in-mold pressed shoe sole using the automatic molding machine according to claim 1, comprising the following steps: Step 1: preparing the mold: first, preparing the male mold (9) and the female mold (10) according to the shape and size of the sole as required, and then installing the male mold (9) and the female mold (10) on the upper mold box (6) and the lower mold box (7) through the fixing assembly (8); Step 2, preparation and mixing of raw materials: prepare 100 parts of natural rubber, styrene-butadiene rubber and recycled rubber, then crush them into granules and pour them into a mixer, then pour 3 parts of antioxidant, 8 parts of zinc oxide particles, 3 parts of accelerator, 5 parts of sulfur powder and 1 part of salicylic acid powder into the mixer, then start the mixer to mix the materials evenly, thereby making raw materials for sole preparation; Step 3, pressing process: spraying an insulating liquid onto the male mold (9) and the female mold (10), then weighing the raw material prepared in step 2 and placing it into the female mold (10), then the pressing component (4) drives the heating component (5), the upper mold box (6) and the male mold (9) to move until the male mold (9) and the female mold (10) are combined, then the heating component (5) heats the male mold (9) through the upper mold box (6), so that the raw material can be heated at 150° C. to 175° C. for 10 to 20 minutes, then the pressing component (4) drives the heating component (5), the upper mold box (6) and the male mold (9) to reset; Step 4, demoulding and post-processing: the pressed sole is removed from the concave mold (10), and then the side edge of the sole is trimmed, and the sole is tested for elasticity, hardness, wear resistance and other conditions. After the test is completed, the sole is packaged to complete the preparation of the sole.

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