Natural rubber composite material and preparation equipment thereof

Abstract

The invention discloses a natural rubber composite material and preparation equipment thereof, and relates to the technical field of rubber materials, the natural rubber composite material comprises a bottom plate, the top of the bottom plate is fixedly connected with a side plate, according to the natural rubber composite material and the preparation equipment thereof, the provided material is good in wear resistance, compared with common natural rubber, the wear resistance is greatly improved, and the service life is prolonged. By arranging a mounting plate, a second hydraulic cylinder and a sealing groove, after raw materials are internally mixed, the piston end of the second hydraulic cylinder pushes the mounting plate to move downwards, then the output end of a first servo motor drives the second hydraulic cylinder and the mounting plate to rotate to one side of the internal mixing box, and the output end of a fourth servo motor drives a first lead screw to rotate; and a first push plate drives a fixing frame, a second servo motor, a connecting plate, a fixing plate and a rotor to be pulled out to the outer side of the internal mixing box through a sealing groove, rubber materials on the outer side of the rotor are scraped off through the sealing groove, the rubber materials can fall into a material receiving box, and the internally mixed rubber materials can be conveniently taken out.

Description

Technical Field

[0001] The invention relates to the technical field of rubber materials, in particular to a natural rubber composite material and a preparation device thereof. Background Art

[0002] Natural rubber is a natural polymer compound with polyisoprene as the main component, with a polyisoprene content of more than 90%, and also contains a small amount of protein, fatty acid, sugar and ash. Due to its good elasticity, plasticity, strength and insulation properties, it has been widely used in various fields of industrial production, such as: wires, cables, conveyor belts, hoses, various rubber products used in the electronics and electrical industries, as well as rubber products used in automobiles, airplanes, and ships. The existing natural rubber composite materials need to use mixing equipment when preparing them. However, after the current mixing equipment mixes the rubber raw materials into rubber, it is not easy to take out the rubber. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a natural rubber composite material and a preparation device thereof, which solves the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a natural rubber composite material preparation equipment, including a bottom plate, the top of the bottom plate is fixedly connected to a side plate, one side of the side plate is fixedly connected to a feed box, the bottom of the feed box is fixedly connected to a mixing box, one side of the mixing box is fixedly connected to a side block, the bottom of the side block is fixedly connected to a first servo motor, the output end of the first servo motor is fixedly connected to a second hydraulic cylinder, the piston end of the second hydraulic cylinder is fixedly connected to a mounting plate, a mixing groove is provided inside the mixing box, the top of the mounting plate extends to the inside of the mixing box, and the top of the feed box is fixedly connected to the first hydraulic cylinder. The piston end of the first hydraulic cylinder extends to the inside of the feed box and is fixedly connected to a top plate, the bottom end of the top plate extends to the inside of the mixing tank, one side of the side plate is fixedly connected to a fixed block, one end of the fixed block is connected to one side of the mixing tank, one side of the side plate is provided with a first side groove, one side of the side plate and above the first side groove is fixedly connected to a guide rail, a first screw rod is rotatably connected inside the guide rail, the outer side of the first screw rod is threadedly connected to a first push plate, one end of the first push plate passes through the first side groove and extends to one side of the side plate and is fixedly connected to a fixing frame, one end of the fixing frame is fixedly connected to a connecting plate, and a sealing groove is provided on one side of the mixing tank.

[0005] Optionally, a fixing plate is fixedly connected to one side of the connecting plate, one end of the fixing plate extends into the sealing groove, two rotors are rotatably connected to one side of the fixing plate, a second servo motor is fixedly connected to one end of the rotor and one side of the connecting plate, and the output end of the second servo motor is connected to one end of the rotor.

[0006] Optionally, a fourth servo motor is fixedly connected to one side of the guide rail, and an output end of the fourth servo motor is connected to one end of the first screw rod.

[0007] Optionally, a material receiving box is placed on the top of the base plate and below the mounting plate.

[0008] Optionally, a moving box is fixedly connected to the top of the base plate, a mixing box is fixedly connected to the top of the moving box, a mixing rod is rotatably connected to the inside of the mixing box, a third servo motor is fixedly connected to the top of the mixing box, the output end of the third servo motor is connected to the top of the mixing rod, a first feed valve is arranged on the top of the mixing box, a discharge valve is installed at the bottom of the mixing box, a weighing plate is installed at the bottom of the inner cavity of the moving box, a weighing box is installed on the top of the weighing plate, a plurality of sensors are arranged on the surface of the weighing plate, and the detection end of the sensor is connected to the bottom of the weighing box.

[0009] Optionally, one side of the weighing box is fixedly connected to an electric telescopic rod, the telescopic end of the electric telescopic rod extends to the inside of the weighing box and is installed with a second push plate, one side of the weighing box is fixedly connected to a fixed column, one side of the inner cavity of the fixed column is rotatably connected to a second screw rod, the other side of the inner cavity of the fixed column is fixedly connected to a fifth servo motor, the output end of the fifth servo motor is connected to one end of the second screw rod, the outer side of the second screw rod is threadedly connected to a push block, a second side groove is opened on one side of the weighing box, one end of the push block extends to the inside of the second side groove and is installed with a baffle, a discharge valve is installed at the bottom of the mixing box, the bottom end of the discharge valve extends to the inside of the moving box, and a lower hopper is installed at the bottom of the moving box.

[0010] Optionally, the top of the base plate is fixedly connected to a first conveyor, one side of the first conveyor is fixedly connected to a sixth servo motor, the first conveyor is rotatably connected to a first screw feed shaft, the output end of the sixth servo motor is connected to one end of the first screw feed shaft, the bottom end of the lower hopper extends into the first conveyor, a discharge pipe is installed at the bottom of the first conveyor, the top of the base plate is fixedly connected to a second conveyor, one end of the discharge pipe extends into the second conveyor, the second conveyor is rotatably connected to a second screw feed shaft, the top of the second conveyor is fixedly connected to a seventh servo motor, the output end of the seventh servo motor is connected to the top end of the second screw feed shaft, one side of the second conveyor is fixedly connected to a second feed valve, and one end of the second feed valve extends into the feed box.

[0011] A natural rubber composite material consists of the following ingredients: natural rubber, EPDM rubber, butadiene rubber, epoxy resin, titanium dioxide, mica powder, carbon black, aluminum oxide, titanate coupling agent TMC-TTS, molybdenum disulfide, accelerator, zinc oxide, stearic acid, zinc stearate, antioxidant, dimethyl silicone oil and dilauryl thiodipropionate.

[0012] The present invention provides a natural rubber composite material and a preparation device thereof, which has the following beneficial effects:

[0013] 1. The natural rubber composite material and its preparation equipment provide a material with good wear resistance. Compared with ordinary natural rubber, the wear resistance is greatly improved. By providing a mounting plate, a second hydraulic cylinder and a sealing groove, after the raw material is mixed, the second servo motor drives the rotor to rotate to the initial position, and then the piston end of the first hydraulic cylinder drives the top plate to move up, and the piston end of the second hydraulic cylinder pushes the mounting plate to move down, and then the output end of the first servo motor drives the second hydraulic cylinder and the mounting plate to rotate to one side of the mixing box, and then the output end of the fourth servo motor drives the first screw rod to rotate, so that the first screw rod drives the first push plate to move, so that the first push plate drives the fixing frame, the second servo motor, the connecting plate, the fixing plate and the rotor to be pulled out through the sealing groove to the outside of the mixing box, and the rubber on the outside of the rotor is scraped off through the sealing groove, so that the rubber can fall into the inside of the material receiving box, which is convenient for taking out the mixed rubber.

[0014] 2. The natural rubber composite material and the preparation equipment thereof are provided with a mixing box, a sensor and a weighing box. The raw materials fall into the weighing box through a discharge valve. The weight of the raw materials in the weighing box is detected by the sensor. When it is detected that the weight of the raw materials in the weighing box reaches a preset value, the discharge valve is closed, and then the telescopic end of the electric telescopic rod pushes the second push plate to move, and then the output end of the fifth servo motor drives the second screw to rotate, so that the push block drives the baffle to move outward, and the raw materials in the weighing box are pushed out to the inside of the moving box, so that the raw materials fall into the first conveyor through the lower hopper, and then the output end of the sixth servo motor drives the first spiral feed shaft to rotate, so that the first spiral feed shaft drives the raw materials in the first conveyor to fall into the second conveyor through the discharge pipe, and then the output end of the seventh servo motor drives the second spiral feed shaft to rotate, so that the second spiral feed shaft drives the raw materials in the second conveyor to move upward, driving the raw materials to fall into the feed box through the second feed valve, and then fall into the mixing tank, so that the raw materials can be automatically weighed and conveyed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the mixing box of the present invention from a side view;

[0017] Figure 3 It is a schematic diagram of the internal structure of the weighing box of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the fixed column part of the present invention;

[0019] Figure 5 For the present invention Figure 2 A magnified image of point A;

[0020] Figure 6 For the present invention Figure 1 Enlarged view of point B.

[0021] In the figure: 1, bottom plate; 2, side plate; 3, feed box; 4, first hydraulic cylinder; 5, mixing box; 6, top plate; 7, side block; 8, first servo motor; 9, second hydraulic cylinder; 10, mounting plate; 11, mixing tank; 12, receiving box; 13, first side tank; 14, guide rail; 15, first screw rod; 16, first push plate; 17, fixed frame; 18, connecting plate; 19, fixed plate; 20, sealing groove; 21, second servo motor; 22, fixed block; 23, moving box; 24, mixing box; 25, third servo motor; 26, mixing rod; 27, first Feed valve; 28. Discharge valve; 29. ​​Weighing plate; 30. Sensor; 31. Weighing box; 32. Electric telescopic rod; 33. Second push plate; 34. Fourth servo motor; 35. Second side groove; 36. Fixed column; 37. Fifth servo motor; 38. Second screw rod; 39. Push block; 40. Baffle; 41. Lower hopper; 42. First conveyor; 43. First spiral feed shaft; 44. Sixth servo motor; 45. Discharge pipe; 46. Second conveyor; 47. Seventh servo motor; 48. Second spiral feed shaft; 49. Second feed valve; 50. Rotor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Embodiment 1

[0024] See also Figures 1 to 6The present invention provides a technical solution: a natural rubber composite material preparation device, comprising a bottom plate 1, a side plate 2 is fixedly connected to the top of the bottom plate 1, a feed box 3 is fixedly connected to one side of the side plate 2, a mixing box 5 is fixedly connected to the bottom of the feed box 3, a side block 7 is fixedly connected to one side of the mixing box 5, a first servo motor 8 is fixedly connected to the bottom of the side block 7, a second hydraulic cylinder 9 is fixedly connected to the output end of the first servo motor 8, a mounting plate 10 is fixedly connected to the piston end of the second hydraulic cylinder 9, a mixing groove 11 is provided inside the mixing box 5, the top end of the mounting plate 10 extends to the inside of the mixing box 5, a first hydraulic cylinder 4 is fixedly connected to the top of the feed box 3, and the piston end of the first hydraulic cylinder 4 extends To the inside of the feed box 3 and fixedly connected with a top plate 6, the bottom end of the top plate 6 extends to the inside of the mixing tank 11, one side of the side plate 2 is fixedly connected with a fixed block 22, one end of the fixed block 22 is connected to one side of the mixing tank 5, one side of the side plate 2 is provided with a first side groove 13, one side of the side plate 2 and located above the first side groove 13 is fixedly connected with a guide rail 14, the inside of the guide rail 14 is rotatably connected with a first screw rod 15, the outer side of the first screw rod 15 is threadedly connected with a first push plate 16, one end of the first push plate 16 passes through the first side groove 13 and extends to one side of the side plate 2 and is fixedly connected with a fixing frame 17, one end of the fixing frame 17 is fixedly connected with a connecting plate 18, and one side of the mixing tank 5 is provided with a sealing groove 20.

[0025] Among them, a fixed plate 19 is fixedly connected to one side of the connecting plate 18, one end of the fixed plate 19 extends to the inside of the sealing groove 20, and two rotors 50 are rotatably connected to one side of the fixed plate 19. A second servo motor 21 is fixedly connected to one side of the connecting plate 18 and one end of the rotor 50, and the output end of the second servo motor 21 is connected to one end of the rotor 50, so that the output end of the second servo motor 21 can drive the rotor 50 to mix the raw materials inside the mixing box 5.

[0026] A fourth servo motor 34 is fixedly connected to one side of the guide rail 14 , and an output end of the fourth servo motor 34 is connected to one end of the first screw rod 15 , so that the output end of the fourth servo motor 34 can drive the first screw rod 15 to rotate.

[0027] A material receiving box 12 is placed on the top of the bottom plate 1 and below the mounting plate 10 , so that the raw materials mixed inside the mixing box 5 can fall into the material receiving box 12 .

[0028] Among them, a moving box 23 is fixedly connected to the top of the bottom plate 1, a mixing box 24 is fixedly connected to the top of the moving box 23, a mixing rod 26 is rotatably connected inside the mixing box 24, a third servo motor 25 is fixedly connected to the top of the mixing box 24, the output end of the third servo motor 25 is connected to the top of the mixing rod 26, a first feed valve 27 is arranged on the top of the mixing box 24, a discharge valve 28 is installed at the bottom of the mixing box 24, a weighing plate 29 is installed at the bottom of the inner cavity of the moving box 23, a weighing box 31 is installed on the top of the weighing plate 29, a plurality of sensors 30 are arranged on the surface of the weighing plate 29, and the detection end of the sensor 30 is connected to the bottom of the weighing box 31, so as to control the amount of raw materials.

[0029] Among them, one side of the weighing box 31 is fixedly connected to an electric telescopic rod 32, the telescopic end of the electric telescopic rod 32 extends to the inside of the weighing box 31 and is installed with a second push plate 33, one side of the weighing box 31 is fixedly connected to a fixed column 36, one side of the inner cavity of the fixed column 36 is rotatably connected to a second screw rod 38, and the other side of the inner cavity of the fixed column 36 is fixedly connected to a fifth servo motor 37, the output end of the fifth servo motor 37 is connected to one end of the second screw rod 38, and the outer side of the second screw rod 38 is threadedly connected to a push block 39, one side of the weighing box 31 is provided with a second side groove 35, one end of the push block 39 extends to the inside of the second side groove 35 and is installed with a baffle 40, a discharge valve 28 is installed at the bottom of the mixing box 24, the bottom end of the discharge valve 28 extends to the inside of the moving box 23, and a lower hopper 41 is installed at the bottom of the moving box 23 so as to push out the weighed amount inside the weighing box 31.

[0030] Among them, the top of the base plate 1 is fixedly connected to the first conveyor 42, one side of the first conveyor 42 is fixedly connected to the sixth servo motor 44, the first conveyor 42 is internally rotatably connected to the first spiral feed shaft 43, the output end of the sixth servo motor 44 is connected to one end of the first spiral feed shaft 43, the bottom end of the lower hopper 41 extends to the inside of the first conveyor 42, a discharge pipe 45 is installed at the bottom of the first conveyor 42, the top of the base plate 1 is fixedly connected to the second conveyor 46, one end of the discharge pipe 45 extends to the inside of the second conveyor 46, the second conveyor 46 is internally rotatably connected to the second spiral feed shaft 48, the top of the second conveyor 46 is fixedly connected to the seventh servo motor 47, the output end of the seventh servo motor 47 is connected to the top end of the second spiral feed shaft 48, one side of the second conveyor 46 is fixedly connected to the second feed valve 49, one end of the second feed valve 49 extends to the inside of the feed box 3, which is convenient for raw materials.

[0031] Embodiment 2

[0032] The invention provides a technical solution: a natural rubber composite material, which is composed of the following components: natural rubber, EPDM rubber, butadiene rubber, epoxy resin, titanium dioxide, mica powder, carbon black, aluminum oxide, titanate coupling agent TMC-TTS, molybdenum disulfide, accelerator, zinc oxide, stearic acid, zinc stearate, antioxidant, dimethyl silicone oil and dilauryl thiodipropionate.

[0033] In summary, when the natural rubber composite material and the preparation equipment thereof are used, the rubber raw material is put into the mixing box 24 through the first feed valve 27, and then the output end of the third servo motor 25 drives the mixing rod 26 to rotate to mix the raw material, and then the raw material falls into the weighing box 31 through the discharge valve 28, and the weight of the raw material inside the weighing box 31 is detected by the sensor 30. When it is detected that the weight of the raw material inside the weighing box 31 reaches a preset value, the discharge valve 28 is closed, and then the telescopic end of the electric telescopic rod 32 pushes the second push plate 33 to move, and then the output end of the fifth servo motor 37 drives the second screw 38 to rotate, so that the push block 39 drives the baffle 40 to move outward, and the inside of the weighing box 31 is The raw materials are pushed into the movable box 23, so that the raw materials fall into the first conveyor 42 through the lower hopper 41, and then the output end of the sixth servo motor 44 drives the first spiral feed shaft 43 to rotate, so that the first spiral feed shaft 43 drives the raw materials in the first conveyor 42 to fall into the second conveyor 46 through the discharge pipe 45, and then the second spiral feed shaft 48 is driven to rotate by the output end of the seventh servo motor 47, so that the second spiral feed shaft 48 drives the raw materials in the second conveyor 46 to move upward, driving the raw materials to fall into the feed box 3 through the second feed valve 49, and then fall into the mixing tank 11, and the piston end of the first hydraulic cylinder 4 pushes the top plate 6 to move toward the mixing box 5. At the same time, the output end of the second servo motor 21 drives the rotor 50 to rotate, and the heating component installed inside the mixing box 5 heats the raw material. While the rotor 50 rotates, the raw material is mixed. After the raw material is mixed, the second servo motor 21 drives the rotor 50 to rotate to the initial position, and then the piston end of the first hydraulic cylinder 4 drives the top plate 6 to move up, and the piston end of the second hydraulic cylinder 9 pushes the mounting plate 10 to move down, and then the output end of the first servo motor 8 drives the second hydraulic cylinder 9 and the mounting plate 10 to rotate to one side of the mixing box 5, and then the output end of the fourth servo motor 34 drives the first screw rod 15 to rotate, so that the first screw rod 15 drives the first push plate 16 to move, so that the first push plate 16 drives the fixing frame 17 and the first push plate 16 to move. The second servo motor 21, the connecting plate 18, the fixed plate 19 and the rotor 50 are pulled out to the outside of the mixing box 5 through the sealing groove 20, and the rubber on the outside of the rotor 50 is scraped off through the sealing groove 20, so that the rubber can fall into the inside of the receiving box 12, so that the operator can take the raw materials inside the receiving box 12, and then the output end of the fourth servo motor 34 drives the first screw 15 to reset and rotate, so that the rotor 50 and the fixed plate 19 move to the inside of the mixing box 5 through the sealing groove 20, and then the output end of the first servo motor 8 drives the second hydraulic cylinder 9 and the mounting plate 10 to rotate to the bottom of the mixing box 5, and then the piston end of the second hydraulic cylinder 9 drives the mounting plate 10 to move upward, and the top end of the mounting plate 10 is inserted into the inside of the mixing box 5.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural rubber composite material preparation device, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a side plate (2), one side of the side plate (2) is fixedly connected to a feed box (3), the bottom of the feed box (3) is fixedly connected to a mixing box (5), one side of the mixing box (5) is fixedly connected to a side block (7), the bottom of the side block (7) is fixedly connected to a first servo motor (8), the output end of the first servo motor (8) is fixedly connected to a second hydraulic cylinder (9), the piston end of the second hydraulic cylinder (9) is fixedly connected to a mounting plate (10), a mixing groove (11) is provided inside the mixing box (5), the top end of the mounting plate (10) extends to the inside of the mixing box (5), the top of the feed box (3) is fixedly connected to a first hydraulic cylinder (4), the piston end of the first hydraulic cylinder (4) extends to the inside of the feed box (3) and is fixedly connected to a top plate (6) The bottom end of the top plate (6) extends into the interior of the internal mixing tank (11); a fixed block (22) is fixedly connected to one side of the side plate (2); one end of the fixed block (22) is connected to one side of the internal mixing box (5); a first side groove (13) is provided on one side of the side plate (2); a guide rail (14) is fixedly connected to one side of the side plate (2) and located above the first side groove (13); a first screw rod (15) is rotatably connected to the inside of the guide rail (14); the outer side of the first screw rod (15) is threadedly connected to a first push plate (16); one end of the first push plate (16) passes through the first side groove (13) and extends to one side of the side plate (2) and is fixedly connected to a fixed frame (17); one end of the fixed frame (17) is fixedly connected to a connecting plate (18); a sealing groove (20) is provided on one side of the internal mixing box (5).

2. A natural rubber composite material preparation device according to claim 1, characterized in that: A fixing plate (19) is fixedly connected to one side of the connecting plate (18), one end of the fixing plate (19) extends into the interior of the sealing groove (20), two rotors (50) are rotatably connected to one side of the fixing plate (19), a second servo motor (21) is fixedly connected to one end of the rotor (50) and one side of the connecting plate (18), and an output end of the second servo motor (21) is connected to one end of the rotor (50).

3. A natural rubber composite material preparation device according to claim 2, characterized in that: A fourth servo motor (34) is fixedly connected to one side of the guide rail (14), and an output end of the fourth servo motor (34) is connected to one end of the first screw rod (15).

4. The natural rubber composite material preparation equipment according to claim 1, characterized in that: A material receiving box (12) is placed on the top of the base plate (1) and below the mounting plate (10).

5. A natural rubber composite material preparation device according to claim 4, characterized in that: A moving box (23) is fixedly connected to the top of the bottom plate (1), a mixing box (24) is fixedly connected to the top of the moving box (23), a mixing rod (26) is rotatably connected to the inside of the mixing box (24), a third servo motor (25) is fixedly connected to the top of the mixing box (24), an output end of the third servo motor (25) is connected to the top of the mixing rod (26), a first feed valve (27) is arranged on the top of the mixing box (24), a discharge valve (28) is installed at the bottom of the mixing box (24), a weighing plate (29) is installed at the bottom of the inner cavity of the moving box (23), a weighing box (31) is installed on the top of the weighing plate (29), a plurality of sensors (30) are arranged on the surface of the weighing plate (29), and the detection end of the sensor (30) is connected to the bottom of the weighing box (31).

6. The natural rubber composite material preparation equipment according to claim 5, characterized in that: One side of the weighing box (31) is fixedly connected to an electric telescopic rod (32), the telescopic end of the electric telescopic rod (32) extends into the inside of the weighing box (31) and is installed with a second push plate (33), one side of the weighing box (31) is fixedly connected to a fixed column (36), one side of the inner cavity of the fixed column (36) is rotatably connected to a second screw rod (38), the other side of the inner cavity of the fixed column (36) is fixedly connected to a fifth servo motor (37), the output end of the fifth servo motor (37) is connected to the first servo motor (37), and the output end of the fifth servo motor (37) is connected to the first servo motor (37). One ends of the two screw rods (38) are connected, and the outer side of the second screw rod (38) is threadedly connected to a push block (39), a second side groove (35) is opened on one side of the weighing box (31), one end of the push block (39) extends into the second side groove (35) and is installed with a baffle (40), a discharge valve (28) is installed at the bottom of the mixing box (24), the bottom end of the discharge valve (28) extends into the inside of the moving box (23), and a lower hopper (41) is installed at the bottom of the moving box (23).

7. The natural rubber composite material preparation device according to claim 6, characterized in that: The top of the bottom plate (1) is fixedly connected to a first conveyor (42), one side of the first conveyor (42) is fixedly connected to a sixth servo motor (44), the first conveyor (42) is internally rotatably connected to a first screw feed shaft (43), the output end of the sixth servo motor (44) is connected to one end of the first screw feed shaft (43), the bottom end of the lower hopper (41) extends into the first conveyor (42), a discharge pipe (45) is installed at the bottom of the first conveyor (42), and the top of the bottom plate (1) is fixedly connected to a first conveyor (42). A second conveyor (46), one end of the discharge pipe (45) extends into the interior of the second conveyor (46), a second screw feed shaft (48) is rotatably connected inside the second conveyor (46), a seventh servo motor (47) is fixedly connected to the top of the second conveyor (46), an output end of the seventh servo motor (47) is connected to the top of the second screw feed shaft (48), a second feed valve (49) is fixedly connected to one side of the second conveyor (46), and one end of the second feed valve (49) extends into the interior of the feed box (3).

8. A natural rubber composite material, characterized in that: It is composed of the following ingredients: natural rubber, EPDM rubber, butadiene rubber, epoxy resin, titanium dioxide, mica powder, carbon black, alumina, titanate coupling agent TMC-TTS, molybdenum disulfide, accelerator, zinc oxide, stearic acid, zinc stearate, antioxidant, dimethyl silicone oil and dilauryl thiodipropionate.

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