Automatic injection molding device for rubber processing and processing method thereof

Abstract

The invention relates to the technical field of rubber processing, and discloses an automatic injection molding device for rubber processing and a processing method thereof.The automatic injection molding device comprises a smashing box, a discharging port and a warm air blower are fixedly connected to the two sides of the outer surface of the bottom of the smashing box, and a smashing device is fixedly connected to the top end in the smashing box; a plurality of supporting frames are fixedly connected to the top of the crushing box, a heating device is fixedly connected to the top ends of the supporting frames, the crushing device comprises an expanding device and a rotating device, the expanding device firstly simply crushes materials, and then the rotating device expands the bottom to secondarily crush the materials on the periphery of the crushing box. The heating device comprises an oval block, the oval block can drive a rotating block to conduct small-amplitude surrounding shaking, then fan blades are fixedly connected to the bottom of the rotating block to rotationally blow air to the top of the smashing box, and the temperature in the smashing box is kept.

Description

Technical Field

[0001] The invention relates to the technical field of rubber processing, in particular to an automatic injection molding device for rubber processing and a processing method thereof. Background Art

[0002] In the rubber processing industry, heat preservation mixing is crucial to the production of high-quality rubber products, which directly affects the performance, quality and production efficiency of the products. With the wide application of rubber products in the fields of automobiles, aerospace, construction, etc., the requirements for their quality and performance are becoming increasingly stringent, and the limitations of traditional rubber processing methods in the heat preservation mixing link are becoming more and more prominent.

[0003] In traditional rubber processing, insulation measures are often insufficient. For example, it is difficult for ordinary heating equipment to maintain a stable processing temperature, resulting in uneven heating of rubber raw materials during the mixing process. In the case of large temperature fluctuations, the degree of plasticization of rubber is inconsistent, affecting the physical properties of the product, such as tensile strength and wear resistance. For example, in the production of automobile tires, if the rubber is heated unevenly during mixing, it will lead to performance differences in various parts of the tire, reducing the service life and safety of the tire.

[0004] At the same time, the traditional mixing process also has defects. Conventional mixing equipment has a single mixing method and low mixing efficiency, making it difficult to fully and evenly mix various additives with rubber raw materials. When preparing high-performance rubber, such as special rubber used in the aerospace field, the dispersion of additives needs to be precisely controlled. Traditional mixing processes are difficult to meet this requirement, resulting in unstable product performance and increased scrap rate.

[0005] In addition, in some temperature-sensitive rubber processing processes, traditional devices lack effective heat preservation means, and heat dissipation is too fast, which not only wastes energy, but also may cause the rubber to solidify prematurely, affecting the smooth progress of the processing flow. For example, in the production of rubber seals, if the temperature is not properly controlled, the sealing performance of the seals will decrease and cannot meet the actual use requirements.

[0006] With the development of science and technology, the market demand for rubber products continues to grow, and the requirements for their quality and performance are becoming higher and higher. Developing an automated injection molding device for rubber processing that can achieve efficient heat preservation mixing and its processing method to solve the problems existing in traditional processes has become a key issue that needs to be urgently solved in the rubber processing industry. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides an automated injection molding device for rubber processing and a processing method thereof.

[0009] (II) Technical solution

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] An automatic injection molding device for rubber processing and a processing method thereof, comprising a crushing box, wherein the crushing box is used to crush and mix the materials, and then an injection molding head is used to perform injection molding. The two sides of the outer surface of the bottom of the crushing box are fixedly connected with a discharge port and a heater. The top of the crushing box is fixedly connected with a crushing device. The top of the crushing box is fixedly connected with a plurality of support frames. The top of the support frame is fixedly connected with a heating device. The crushing device comprises an expansion device and a rotating device. The expansion device will firstly crush the materials simply, and then the bottom of the rotating device will be moved to both sides to expand by the downward movement of the rotating device, and the outer periphery of the crushing box will be crushed again.

[0012] The heating device includes an elliptical block, which first rotates and moves, and then drives the rotating block connected to the bottom to perform a small circular swing. The bottom of the rotating block is fixedly connected to a fan blade, so that the fan blade can be driven to rotate at the top of the crushing box to blow hot air, thereby heating and keeping the raw materials inside the crushing box warm.

[0013] Preferably, the expansion device includes a support plate, and both ends of the bottom of the support plate are fixedly connected to the top of the crushing box, a motor is fixedly connected to the center of the bottom of the support plate, a long plate is fixedly connected to the rear side of the motor, and the top of the long plate is fixedly connected to the bottom of the support plate.

[0014] Preferably, the bottom of the motor is movably connected to a first gear, the outer surface of the first gear is meshingly connected to a second gear, the center of the second gear is fixedly connected to a rotating column, the outer surface of the rotating column is movably connected to a rotating device, both sides of the rotating column are connected to square plates, and the bottom ends of the two square plates are fixedly connected to the front end of the long board, the bottom of the rotating column is fixedly connected to a polygonal block, and the top of the polygonal block is movably connected to the bottom of the long board.

[0015] Preferably, the rotating device includes a first threaded rod, and the top of the first threaded rod is movably connected to the bottom of the motor, the outside of the first threaded rod is connected to the second threaded rod, and the hollow inside the second threaded rod is movably connected to the outer surface of the rotating column, and the outer surfaces of the first threaded rod and the second threaded rod are both meshed with a third gear.

[0016] Preferably, the two third gears are fixedly connected with a connecting column at the center, the fourth gear is meshingly connected with the outer surface of the bottom of the second threaded rod, the third threaded rod is fixedly connected with the center of the fourth gear, sliding rods are movably connected with the outer surfaces of the third threaded rod at both ends, crushing blades are movably connected with the centers of the outer surfaces of the two sliding rods, and hollow blades are fixedly connected with the bottoms of the two crushing blades.

[0017] Preferably, the heating device comprises a disc, and the outer surface of the disc is fixedly connected to the top of the support frame, L-shaped rods are fixedly connected to both sides of the raised portion at the bottom of the disc, and movable shafts are movably connected to the inner sides of the bottoms of the two L-shaped rods.

[0018] Preferably, one end of an elliptical block is movably connected to the bottom center of the disc, the other end of the elliptical block is movably connected to two fifth gears, the bottom center of another fifth gear is connected to a rotating block, both sides of the outer surface of the rotating block are movably connected to hollow plates, and both sides of the outer surface of the hollow plates are movably connected to the bottom ends of two movable shafts.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides an automated injection molding device for rubber processing and a processing method thereof, which has the following beneficial effects:

[0021] 1. The automatic injection molding device for rubber processing and the processing method thereof, by arranging a support plate on the top of the crushing box, can use the support of the support plate to connect the entire expansion device to the inside of the crushing box, so that the expansion device can drive the rotating device to operate conveniently, and the material can be quickly rotated and crushed. At the same time, the heater connected to the outside of the crushing box can also maintain the temperature by the heat brought by the mechanical activity at the bottom, so that the material is easier to mix in the crushing box and achieve a better mixing effect.

[0022] 2. The automatic injection molding device for rubber processing and the processing method thereof can use the power generation of the motor to drive the rotation of the support plate by arranging a support plate at the bottom of the motor. When the support plate rotates, the second gear connected to the outer surface will move at the same time, so that the rotating column fixedly connected to the center of the second gear can also drive the polygonal block at the bottom to rotate together. The rotating device on the outer surface of the rotating column can first simply crush the material in the center of the crushing box, and through the heating of the heater, the material fluidity is better in the heat preservation environment, which helps the material to be dispersed to both sides more smoothly and be crushed. In addition, the crushing and mixing effect is better under the heat preservation, thereby improving the mixing efficiency.

[0023] 3. The automatic injection molding device for rubber processing and the processing method thereof, by arranging the first threaded rod at the bottom of the motor, will also drive the first threaded rod to rotate under the power generation of the motor, at this time the third gear located on the outer surface of the first threaded rod will be moved, and the connecting column just fixes the two third gears together, so the other third gear on the outer surface of the second threaded rod will push the second threaded rod to move downward, so that the fourth gear on the outer surface of the bottom of the second threaded rod can drive the third threaded rod fixedly connected in the center to rotate, and the sliding rods at both ends of the outer surface of the third threaded rod can continuously crush the crushing blades and hollow blades at the bottom from the middle to both sides. This crushing method can ensure that the raw materials are fully processed in a shorter time, saving time and labor costs, thereby improving the crushing and mixing efficiency.

[0024] 4. The automatic injection molding device for rubber processing and the processing method thereof, by setting the elliptical block at the bottom of the disc, can use the power source inside the disc to drive the elliptical block to rotate, and two fifth gears are connected to one end of the elliptical block, one of which is installed on the top of the rotating block. Therefore, under the circumferential rotation of the elliptical block, the fifth gear will drive the rotating block to swing in the hollow part inside the hollow plate, so that the fan blades connected to the bottom of the rotating block can rotate above the crushing box for blowing and heating, effectively maintaining the temperature of the crushing device during operation, thereby improving production efficiency and worker efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection relationship between the pulverizing device and the heating device of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the connection relationship between the expansion device and the rotation device of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the expansion device of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the rotating device of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection relationship structure of the outer surface of the second threaded rod of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the heating device of the present invention.

[0033] In the figure: 1. crushing box; 2. discharge port; 3. heater; 4. crushing device; 41. expansion device; 411. support plate; 412. motor; 413. long plate; 414. support plate; 415. second gear; 416. rotating column; 417. square plate; 418. polygonal block; 42. rotating device; 421. first threaded rod; 422. second threaded rod; 423. third gear; 424. connecting column; 425. fourth gear; 426. third threaded rod; 427. sliding rod; 428. crushing blade; 429. hollow blade; 5. support frame; 6. heating device; 61. disc; 62. L-shaped rod; 63. movable shaft; 64. elliptical block; 65. fifth gear; 66. rotating block; 67. hollow plate; 68. fan blade. DETAILED DESCRIPTION

[0034] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 8 , an automatic injection molding device for rubber processing and a processing method thereof, comprising a crushing box 1, through which the material is crushed and mixed, and then an injection molding head is used for injection molding, the outer surface of the bottom of the crushing box 1 is provided with a discharge port 2 and a heater 3 on both sides, and the outer surface of the bottom of the crushing box 1 is fixedly connected to the discharge port 2 and one end of the heater 3 on both sides, a crushing device 4 is provided at the top of the crushing box 1, and the top of the crushing box 1 is fixedly connected to the top of the crushing device 4, a plurality of support frames 5 are provided at the top of the crushing box 1, and the top of the crushing box 1 is fixedly connected to the bottom of the plurality of support frames 5, a heating device 6 is provided at the top of the support frame 5, and the top of the support frame 5 is fixedly connected to the outer surface of the heating device 6, the crushing device 4 comprises an expansion device 41 and a rotating device 42, the expansion device 41 will firstly perform a simple crushing on the material, and then the bottom of the rotating device 42 can be moved to both sides and expanded by the downward movement of the rotating device 42, and the outer periphery of the crushing box 1 is crushed again;

[0036] The heating device 6 includes an elliptical block 64, which first rotates and moves, and then drives the rotating block 66 connected to the bottom to perform a small circular swing. The bottom of the rotating block 66 is fixedly connected to the fan blade 68, so that the fan blade 68 can be driven to rotate and blow hot air on the top of the crushing box 1 to heat and keep the raw materials inside the crushing box 1 warm.

[0037] The expansion device 41 includes a support plate 411, and both ends of the bottom of the support plate 411 are fixedly connected to the top of the crushing box 1. A motor 412 is arranged at the center of the bottom of the support plate 411 and is fixedly connected. A long plate 413 is arranged at the rear side of the motor 412, and the rear side of the motor 412 is fixedly connected to the front end of the long plate 413. By arranging the support plate 411 at the top of the crushing box 1, the support of the support plate 411 can be used to connect the entire expansion device 41 to the inside of the crushing box 1, so that the expansion device 41 can drive the rotating device 42 to operate and quickly rotate and crush the materials. At the same time, the heater 3 connected to the outside of the crushing box 1 can also blow air in time to maintain the temperature under the heat generated by the mechanical activity at the bottom, and the raw materials are easier to mix under the heat preservation condition. The top of the long plate 413 is fixedly connected to the bottom of the support plate 411.

[0038] The motor 412 is provided with a first gear 414 at the bottom, and the bottom of the motor 412 is movably connected to the top of the first gear 414; the first gear 414 is provided with a second gear 415 on the outer surface, and the outer surface of the first gear 414 is meshed with the outer surface of the second gear 415; the second gear 415 is provided with a rotating column 416 at the center, and the center of the second gear 415 is fixedly connected to the top of the rotating column 416; the rotating column 416 is provided with a rotating device 42 on the outer surface, and the outer surface of the rotating column 416 is movably connected to the inside of the rotating device 42; square plates 417 are provided on both sides of the rotating column 416, and both sides of the rotating column 416 are connected to the inner side of the square plates 417, and the bottom ends of the two square plates 417 are fixedly connected to the front end of the long plate 413. The bottom of the rotating column 416 is provided with a polygonal block 418. By providing a support plate 414 at the bottom of the motor 412, the power generation of the motor 412 can be used to drive the rotation of the support plate 414. When the support plate 414 rotates, the second gear 415 connected to the outer surface will move at the same time, so that the rotating column 416 fixedly connected to the center of the second gear 415 can also drive the bottom polygonal block 418 to rotate together. The rotating device 42 on the outer surface of the rotating column 416 can first simply crush the material in the center of the crushing box 1, and through the heating of the heater 3, the material fluidity is better in the heat preservation environment, which helps the material to be more smoothly dispersed to both sides and be crushed. In addition, the heat preservation treatment ensures the quality and stability of the product, thereby improving the crushing efficiency and output. The bottom of the rotating column 416 is fixedly connected to the hollow inside of the polygonal block 418, and the top of the polygonal block 418 is movably connected to the bottom of the long plate 413.

[0039] The rotating device 42 includes a first threaded rod 421, and the top of the first threaded rod 421 is movably connected to the bottom of the motor 412, the outer side of the first threaded rod 421 is connected to the second threaded rod 422, and the inner hollow part of the second threaded rod 422 is movably connected to the outer surface of the rotating column 416, the outer surfaces of the first threaded rod 421 and the second threaded rod 422 are both provided with a third gear 423, and the outer surfaces of the first threaded rod 421 and the second threaded rod 422 are both meshed and connected with the outer surface of the third gear 423.

[0040] A connecting column 424 is provided at the center of the two third gears 423, and the centers of the two third gears 423 are fixedly connected to the outer surface of the connecting column 424, a fourth gear 425 is provided at the outer surface of the bottom of the second threaded rod 422, and the outer surface of the bottom of the second threaded rod 422 is meshed and connected with the outer surface of the fourth gear 425, a third threaded rod 426 is provided at the center of the fourth gear 425, and the center of the fourth gear 425 is fixedly connected to the outer surface of the third threaded rod 426, sliding rods 427 are provided at both ends of the outer surface of the third threaded rod 426, and both ends of the outer surface of the third threaded rod 426 are movably connected to the top of the sliding rod 427, crushing blades 428 are provided at the centers of the outer surfaces of the two sliding rods 427, and the centers of the outer surfaces of the two sliding rods 427 are movably connected to the center of the crushing blades 428, and hollow blades 429 are provided at the bottoms of the two crushing blades 428, By also setting the first threaded rod 421 at the bottom of the motor 412, the first threaded rod 421 will be driven to rotate under the power generation of the motor 412. At this time, the third gear 423 located on the outer surface of the first threaded rod 421 will be moved, and the connecting column 424 just fixes the two third gears 423 together, so the other third gear 423 on the outer surface of the second threaded rod 422 will push the second threaded rod 422 to move downward, so that the fourth gear 425 on the outer surface of the bottom of the second threaded rod 422 can drive the third threaded rod 426 fixedly connected in the center to rotate, and the sliding rods 427 at both ends of the outer surface of the third threaded rod 426 can continuously crush the bottom crushing blades 428 and the hollow blades 429 from the middle to both sides. This crushing method can ensure that the raw materials are fully processed in a short time, saving time and labor costs, thereby improving the crushing efficiency. And the bottoms of the two crushing blades 428 are fixedly connected to the inner side of the hollow blade 429.

[0041] The heating device 6 includes a disc 61, and the outer surface of the disc 61 is fixedly connected to the top of the support frame 5, L-shaped rods 62 are arranged on both sides of the raised portion at the bottom of the disc 61, and both sides of the raised portion at the bottom of the disc 61 are fixedly connected to the inner side of the top of the L-shaped rod 62, movable shafts 63 are arranged on the inner sides of the bottoms of the two L-shaped rods 62, and the inner sides of the bottoms of the two L-shaped rods 62 are movably connected to the top of the movable shaft 63.

[0042] An elliptical block 64 is provided at the bottom center of the disc 61, and the bottom center of the disc 61 is movably connected to one end of the elliptical block 64, and two fifth gears 65 are provided at the other end of the elliptical block 64, and the other end of the elliptical block 64 is movably connected to the tops of the two fifth gears 65, and a rotating block 66 is provided at the bottom center of another fifth gear 65, and the bottom center of another fifth gear 65 is connected to the top of the rotating block 66, and hollow plates 67 are provided on both sides of the outer surface of the rotating block 66, and both sides of the outer surface of the rotating block 66 are movably connected to the raised parts of the hollow inside of the hollow plate 67. By setting the elliptical block 64 It is placed at the bottom of the disc 61, and can use the power source inside the disc 61 to drive the elliptical block 64 to rotate. Two fifth gears 65 are connected to one end of the elliptical block 64, and one of the fifth gears 65 is installed on the top of the rotating block 66. Therefore, under the circumferential rotation of the elliptical block 64, the fifth gear 65 will drive the rotating block 66 to shake in the hollow part inside the hollow plate 67, so that the fan blades 68 connected to the bottom of the rotating block 66 can rotate above the crushing box 1 to blow and heat, effectively maintaining the temperature of the crushing device 4 during operation, preventing the material in the crushing box from solidifying after the equipment becomes cold, thereby improving production efficiency and worker efficiency. The two sides of the outer surface of the hollow plate 67 are movably connected to the bottom ends of the two movable shafts 63.

[0043] When in use, first put the material to be crushed inside the crushing box 1, and then crush it through the crushing device 4. While the crushing device 4 is crushing, the heating device 6 on the top of the crushing box 1 will heat and keep the crushing device 4 warm, and the heater 3 at the bottom of the crushing box 1 will maintain the heat generated by the crushing of the internal materials, and crush them in a heat-insulating environment. The crushing device 4 includes an expansion device 41 and a rotating device 42. The motor 412 in the expansion device 41 will drive the support plate 414 connected to the bottom to rotate. When the support plate 414 rotates, it is connected to the second gear 415 that meshes with the outer surface and drives it to rotate together, so that the rotating column 416 fixedly connected to the center of the second gear 415 first drives the polygonal block 418 at the bottom to move, and then the rotating device 42 on the outer surface of the rotating column 416 is used to crush the central material inside the crushing box 1. During the crushing process, the material will scatter to the outside. At this time, the rotating device 42 will drive the bottom device to move to both sides for secondary crushing. The first threaded rod 421 in the rotating device 42 is arranged at the bottom of the motor 412 and will also rotate through the power generation of the motor 412. When the first threaded rod 421 rotates, the third gear 423 on the outer surface of the first threaded rod 421 will move. The center of the third gear 423 is fixedly connected to a connecting column 424. Therefore, after one third gear 423 rotates, the other third gear 423 located on the outer surface of the second threaded rod 422 will also rotate, thereby pushing the second threaded rod 422 to slide down on the outer surface of the rotating column 416. When the second threaded rod 422 moves downward, the fourth gear 425 meshingly connected at the bottom of the second threaded rod 422 will move, so that the third threaded rod 426 fixedly connected to the center of the fourth gear 425 can rotate together, and the two sliding rods 427 on the outer surface of the third threaded rod 426 are continuously moved away from the middle to both sides, and the two crushing blades 428 and the hollow blade 429 connected to the bottom can move toward the inner periphery of the crushing box 1, thereby performing secondary crushing to obtain a more uniform mixture of materials, which is convenient for subsequent injection molding processing. The heating device 6 includes a disc 61, and an elliptical block 64 is movably connected to the bottom center of the disc 61. The elliptical block 64 can rotate around by generating electricity through the power supply inside the disc 61. When the elliptical block 64 rotates, it will drive the fifth gear 65 connected to the bottom to rotate together, and the other fifth gear 65 is located on the top of the rotating block 66. Therefore, the rotating block 66 is driven by the elliptical block 64 to move in the hollow part inside the hollow plate 67, thereby driving the fan blades 68 connected to the bottom of the rotating block 66 to blow air and heat above the crushing box 1.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic injection molding device for rubber processing and a processing method thereof, comprising a crushing box (1), an injection molding head fixedly installed at the bottom of the crushing box (1), the crushing box (1) crushes and mixes the materials, and then the injection molding head performs injection molding, the two sides of the outer surface of the bottom of the crushing box (1) are fixedly connected with a discharge port (2) and a heater (3), the top of the crushing box (1) is fixedly connected with a crushing device (4), the top of the crushing box (1) is fixedly connected with a plurality of support frames (5), and the top of the support frame (5) is fixedly connected with a heating device (6), characterized in that: The pulverizing device (4) comprises an expansion device (41) and a rotating device (42). The expansion device (41) first performs simple pulverization on the material, and then the rotating device (42) moves downward, so that the bottom of the rotating device (42) can move to both sides and expand, and the material outside the pulverizing box (1) is pulverized again. The heating device (6) comprises an elliptical block (64), which first rotates and moves, and then drives a rotating block (66) connected to the bottom to perform a small-amplitude circular swing, and the bottom of the rotating block (66) is fixedly connected to a fan blade (68), so that the fan blade (68) can be driven to rotate at the top of the crushing box (1) to blow hot air, thereby heating and heat-insulating the raw materials inside the crushing box (1).

2. The automatic injection molding device for rubber processing and the processing method thereof according to claim 1, characterized in that: The expansion device (41) comprises a support plate (411), and both ends of the bottom of the support plate (411) are fixedly connected to the top of the crushing box (1), a motor (412) is fixedly connected to the center of the bottom of the support plate (411), a long plate (413) is fixedly connected to the rear side of the motor (412), and the top of the long plate (413) is fixedly connected to the bottom of the support plate (411).

3. The automatic injection molding device for rubber processing and the processing method thereof according to claim 2, characterized in that: The bottom of the motor (412) is movably connected to a first gear (414), the outer surface of the first gear (414) is meshingly connected to a second gear (415), the center of the second gear (415) is fixedly connected to a rotating column (416), the outer surface of the rotating column (416) is movably connected to a rotating device (42), both sides of the rotating column (416) are connected to square plates (417), and the bottom ends of the two square plates (417) are fixedly connected to the front end of the long plate (413), the bottom of the rotating column (416) is fixedly connected to a polygonal block (418), and the top of the polygonal block (418) is movably connected to the bottom of the long plate (413).

4. The automatic injection molding device for rubber processing and the processing method thereof according to claim 3 are characterized in that: The rotating device (42) comprises a first threaded rod (421), and the top of the first threaded rod (421) is movably connected to the bottom of the motor (412), the outer side of the first threaded rod (421) is connected to the second threaded rod (422), and the inner hollow part of the second threaded rod (422) is movably connected to the outer surface of the rotating column (416), and the outer surfaces of the first threaded rod (421) and the second threaded rod (422) are both meshedly connected with a third gear (423).

5. The automatic injection molding device for rubber processing and the processing method thereof according to claim 4, characterized in that: The centers of the two third gears (423) are fixedly connected with a connecting column (424); the outer surface of the bottom of the second threaded rod (422) is meshingly connected with a fourth gear (425); the center of the fourth gear (425) is fixedly connected with a third threaded rod (426); both ends of the outer surface of the third threaded rod (426) are movably connected with sliding rods (427); the centers of the outer surfaces of the two sliding rods (427) are movably connected with crushing blades (428); and the bottoms of the two crushing blades (428) are fixedly connected with hollow blades (429).

6. The automatic injection molding device for rubber processing and the processing method thereof according to claim 5, characterized in that: The heating device (6) comprises a disc (61), and the outer surface of the disc (61) is fixedly connected to the top of the support frame (5), L-shaped rods (62) are fixedly connected to both sides of the raised portion at the bottom of the disc (61), and movable shafts (63) are movably connected to the inner sides of the bottoms of the two L-shaped rods (62).

7. The automatic injection molding device for rubber processing and the processing method thereof according to claim 6, characterized in that: The bottom center of the circular disk (61) is movably connected to one end of an elliptical block (64), the other end of the elliptical block (64) is movably connected to two fifth gears (65), the bottom center of another fifth gear (65) is connected to a rotating block (66), both sides of the outer surface of the rotating block (66) are movably connected to hollow plates (67), and both sides of the outer surface of the hollow plates (67) are movably connected to the bottom ends of the two movable shafts (63).

8. The automatic injection molding device for rubber processing according to claim 7, characterized in that: Its preparation method is: Step 1: firstly place the material to be crushed inside the crushing box (1), and then crush it by the crushing device (4); Step 2: The heating device (6) on the top of the crushing box (1) heats and insulates the crushing device (4), while the heater (3) at the bottom of the crushing box (1) retains the heat generated by the crushing of the internal materials, and crushes them in an insulated environment; Step 3: The central material inside the crushing box (1) is crushed once by the rotating device (42) on the outer surface of the rotating column (416); Step 4: The rotating device (42) drives the bottom device to move to both sides to perform secondary crushing; Step 5: After crushing and mixing, an injection molding head is used for injection molding.

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