Dry processing production system for rubber

Abstract

The invention discloses a rubber dry processing production system which comprises rubber crushers, weighing belt conveyors, a collecting hopper, a dry stirring machine and a cooling machine, the discharged materials of the multiple rubber crushers are conveyed into the collecting hopper through the weighing belt conveyors, the discharged materials of the collecting hopper are conveyed to the dry stirring machine through a first conveyor, and the dry stirring machine is conveyed to the cooling machine through a second conveyor. And the discharged material of the dry stirring machine is conveyed to the cooling machine through the second conveyor. According to the rubber dry processing production system provided by the invention, rubber materials are conveyed among the devices through the conveyors, so that the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber processing, in particular to a rubber dry processing production system. BACKGROUND

[0002] Rubber processing is a key process of converting raw rubber into elastic products with specific properties. Raw rubber (especially recycled rubber or block natural rubber) needs to be crushed into small particles to increase the surface area and improve the efficiency of subsequent mixing. The crushed rubber particles are subjected to high-intensity shearing and extrusion by a dry mixer to achieve secondary curing and uniform mixing. The current production line has the following technical problems: 1. There is a significant defect of equipment islandization, that is, each unit equipment operates independently, which requires manual transfer of materials to the feeding port of each equipment. A single production line requires multiple workers to specialize in handling every day, which accounts for a high proportion of total labor costs.

[0003] 2. The core mixing components of the existing dry mixer adopt a fixed blade structure, that is, the blades are fixed on the casing and the shaft, which cannot adapt to seasonal temperature differences, resulting in a decrease in process stability.

[0004] Therefore, it is urgent to provide a rubber dry processing production system to at least solve one of the above technical problems. SUMMARY

[0005] In view of the above prior art, the present application provides a rubber dry processing production system, in which each device is connected by a conveyor to convey the rubber material, thereby reducing labor costs.

[0006] To achieve the above purpose, the technical scheme of the embodiment of the present application is as follows: A rubber dry processing production system comprises a rubber crusher, a weighing belt conveyor, a collecting hopper, a dry mixer and a cooling machine. The discharges of multiple rubber crushers are conveyed to the collecting hopper through the weighing belt conveyor. The discharge of the collecting hopper is conveyed to the dry mixer through a first conveyor. The discharge of the dry mixer is conveyed to the cooling machine through a second conveyor.

[0007] Further, the rubber crusher is a double-roller crusher, and the cooling machine is a air-cooled cooling machine. The air-cooled cooling machine comprises a plate-type material conveyor, a fan cover, a gas conveying pipe and a blower. The plate-type material conveyor is arranged in the fan cover. The fan cover is provided with the gas conveying pipe on the side surface. The gas conveying pipe is in communication with the blower.

[0008] Further, it further comprises a third conveyor and a packing machine. The rubber material of the plate-type material conveyor falls onto the third conveyor. The third conveyor is provided with the packing machine on the side surface.

[0009] Further, the dry mixer comprises a casing, a rotating roller, a moving knife and a driving mechanism, the rotating roller is arranged in the casing, the driving mechanism drives the rotating roller to rotate back and forth, one end of the casing is provided with an inlet, the other end is provided with an outlet, end covers are rotatably connected to both ends of the casing, the rotating roller is connected with the end covers, the end covers are provided with telescopic mechanisms, and the telescopic mechanisms are used for driving the moving knife to move back and forth along the radial direction intermittently.

[0010] Further, the first end of the moving knife is located at one end close to the outlet, and the tail end of the moving knife is located at one end close to the inlet; in the initial state, the first end of the moving knife is located on the side close to the casing, and the distance between the tail end of the moving knife and the casing is H; in the T1 time period, the tail end of the moving knife moves from the initial state to the side close to the rotating roller and then stops in the T2 time period; in the T1 and / or T2 time period, the first end of the moving knife moves from the initial state to the side close to the rotating roller and then stops in the T3 time period; in the T3 time period, the tail end of the moving knife moves a distance H to the side of the casing, and then moves to the side close to the casing in the T4 time period and then stops in the T5 time period; in the T4 and / or T5 time period, the first end of the moving knife moves to the side close to the casing; and in the T6 time period, the tail end of the moving knife moves a distance H to the direction of the rotating roller to return to the initial state.

[0011] Further, the telescopic mechanism comprises a hydraulic telescopic rod, a connecting head, a high-pressure pipeline and a hydraulic pump, the end covers at both ends of the casing are provided with the hydraulic telescopic rods, the movable end of the hydraulic telescopic rod is provided with the connecting head, the connecting head is provided with a rotating shaft, the first end of the moving knife is provided with a strip-shaped hole, and the tail end is provided with a circular hole, and the strip-shaped hole and the circular hole are rotatably connected with the rotating shaft.

[0012] Further, the fixed knives are connected between the end covers on both sides, and the fixed knives are arranged between adjacent moving knives.

[0013] Further, the rotating roller is connected with a transmission shaft, the transmission shaft is connected with the driving mechanism, the driving mechanism comprises a speed reducer and a crank rocker mechanism, and the speed reducer drives the transmission shaft to swing back and forth through the crank rocker mechanism.

[0014] Further, the inlet of the dry mixer is provided with a feeding cylinder, the feeding cylinder is provided with a spiral conveying shaft, and the spiral conveying shaft is connected with a feeding motor.

[0015] Further, a feeding hopper is arranged above the feeding cylinder.

[0016] The beneficial effect of the present application is that the rubber is crushed into small particles by the rubber crusher, then conveyed to the collecting hopper by the weighing belt conveyor, the rubber particles produced by different rubber crushers are mixed in the collecting hopper, then conveyed to the dry mixer by the first conveyor, the rubber is rubbed, extruded and pushed forward in the dry mixer, heat is generated in the process of rubbing and extruding, so that the rubber is mixed and re-cured, the rubber after dry mixing is conveyed to the cooling machine by the second conveyor, and finally cooled by the cooling machine and then packed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structure schematic view of a rubber dry processing production system in the embodiment of the present application. Fig. 2 It is a top view of the dry mixer in the embodiment of the present application. Fig. 3 It is a structure schematic view of A-A section of the dry mixer in the embodiment of the present application. Explanation of reference numerals: 1, rubber crusher; 2, weighing belt conveyor; 3, collecting hopper; 4, dry mixer; 5, cooling machine; 6, first conveyor; 7, second conveyor; 8, plate material conveyor; 9, air cover; 10, air conveying pipe; 11, air blower; 12, third conveyor; 13, packing machine; 14, machine shell; 15, rotating roller; 16, moving knife; 17, driving mechanism; 18, end cover; 19, telescopic mechanism; 20, hydraulic telescopic rod; 21, connecting head; 22, high-pressure pipeline; 23, transmission shaft; 24, hydraulic pump; 25, rotating shaft; 26, fixed knife; 27, speed reducer motor; 28, crank rocker mechanism; 29, feeding cylinder; 30, screw conveying shaft; 31, feeding motor; 32, feeding hopper. DETAILED DESCRIPTION

[0018] The technical scheme of the present application is further described in detail below in combination with the drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0019] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0020] Reference will now be made to the drawings, in which Figs. 1-3 The application provides a rubber dry processing production system, which comprises a rubber breaker 1, a weighing belt conveyor 2, a collecting hopper 3, a dry mixer 4 and a cooling machine 5. The discharges of a plurality of rubber breakers 1 are conveyed to the collecting hopper 3 through the weighing belt conveyors 2 respectively. The discharge of the collecting hopper 3 is conveyed to the dry mixer 4 through a first conveyor 6. The discharge of the dry mixer 4 is conveyed to the cooling machine 5 through a second conveyor 7. The rubber is broken into small particles by the rubber breaker 1, and then conveyed to the collecting hopper 3 through the weighing belt conveyor 2. The rubber particles produced by different rubber breakers 1 are mixed in the collecting hopper 3, and then conveyed to the dry mixer 4 by the first conveyor 6 for dry mixing. The rubber conveyed by the weighing belt conveyor 2 is weighed, so that the weight of the rubber put into the collecting hopper 3 can be controlled. The rubber is rubbed, extruded and pushed forward in the dry mixer 4, and heat is generated in the process of rubbing and extruding, so that the rubber is mixed and re-cured. The rubber after dry mixing is conveyed to the cooling machine 5 through the second conveyor 7, and then cooled in the cooling machine 5 and packaged. The application can realize cooling processing from raw materials to finished products, and the rubber is conveyed between devices through conveyors, so that the labor cost is reduced.

[0021] Specifically, the rubber breaker 1 is a double-roller crusher, and the cooling machine 5 is an air-cooled cooling machine. The cooling machine 5 comprises a plate material conveyor 8, a fan cover 9, a gas conveying pipe 10 and a blower 11. The plate material conveyor 8 is arranged in the fan cover 9. The fan cover 9 is provided with the gas conveying pipe 10 on the side surface. The gas conveying pipe 10 is in communication with the blower 11. The rubber after dry mixing is conveyed to the plate material conveyor 8 through the second conveyor 7, conveyed into the fan cover 9 by the plate material conveyor 8, and cooled by air flowing through the gas conveying pipe 10 when the blower 11 works, so that the purpose of temperature reduction is achieved.

[0022] Specifically, the application further comprises a third conveyor 12 and a packaging machine 13. The rubber on the plate material conveyor 8 falls onto the third conveyor 12, and the third conveyor 12 is provided with the packaging machine 13 on the side surface. The rubber after cooling is conveyed to the packaging station by the third conveyor 12, and the rubber on the third conveyor 12 is put into the packaging machine 13 by workers for packaging.

[0023] Specifically, the dry mixer 4 comprises a casing 14, a rotating roller 15, a moving knife 16 and a driving mechanism 17, the rotating roller 15 is arranged in the casing 14, the driving mechanism 17 drives the rotating roller 15 to rotate forward and backward reciprocatingly, one end of the casing 14 is provided with an inlet, the other end is provided with an outlet, end covers 18 are rotatably connected to both ends of the casing 14, the rotating roller 15 is fixedly connected with the end covers 18, the end covers 18 are provided with telescopic mechanisms 19, the telescopic mechanisms 19 are used to drive the moving knife 16 to move along the radial direction intermittently and reciprocatingly. The rotating roller 15 can rotate forward or backward under the driving of the driving mechanism 17. When the rotating roller 15 rotates, the telescopic mechanisms 19 drive the first end and the last end of the moving knife 16 to move intermittently, so as to rub and squeeze the rubber, and push the rubber to move to the outlet. In the process of rubbing and squeezing, heat is generated, so that the rubber is mixed and re-cured. The intermittent and reciprocating movement of the two ends of the moving knife 16 can be independently controlled. When the ambient temperature is low, the angle between the moving knife 16 and the rotating roller 15 is reduced, when the ambient temperature is high, the angle between the moving knife 16 and the rotating roller 15 is increased, according to the temperature of the environment, the appropriate angle is adopted, and the quality of the rubber is improved.

[0024] Specifically, the first end of the moving knife 16 is located near one end of the discharge port, and the last end of the moving knife 16 is located near one end of the feeding port; in the initial state, the first end of the moving knife 16 is located close to one side of the shell 14, and the distance between the last end of the moving knife 16 and the shell 14 is H; in the T1 time period, the last end of the moving knife 16 moves from the initial state to close to one side of the rotating roller 15, and then stops in the T2 time period; in the T1 and / or T2 time period, the first end of the moving knife 16 moves from the initial state to close to one side of the rotating roller 15, and then stops in the T3 time period; in the T3 time period, the last end of the moving knife 16 moves a distance H to one side of the shell 14, and then moves to close to one side of the shell 14 in the T4 time period and stops in the T5 time period; in the T4 and / or T5 time period, the first end of the moving knife 16 moves to close to one side of the shell 14; in the T6 time period, the last end of the moving knife 16 moves a distance H to the direction of the rotating roller 15 to return to the initial state. In the initial state, the moving knife 16 and the rotating roller 15 form a certain angle, and the distance between the first end of the moving knife 16 and the rotating roller 15 is greater than the distance between the last end of the moving knife 16 and the rotating roller 15; in the T1 and T2 time periods, the moving knife 16 moves to the direction of the rotating roller 15, and the distance between the first end of the moving knife 16 and the rotating roller 15 is greater than or equal to the distance between the last end of the moving knife 16 and the rotating roller 15; the radial movement of the moving knife 16 kneads and pushes the rubber to move to one end of the discharge port. In the T3, T4 and T5 time periods, the two ends of the moving knife 16 move to the direction of the shell 14 in turn, and the distance between the last end of the moving knife 16 and the rotating roller 15 is greater than or equal to the distance between the last end of the moving knife 16 and the rotating roller 15; the radial movement of the moving knife 16 also kneads and pushes the rubber to move to one end of the discharge port. In the T6 time period, the last end of the moving knife 16 moves a distance H to the direction of the rotating roller 15 to return to the initial state, and in this process, the radial movement of the moving knife 16 kneads and pushes the rubber to move to one end of the discharge port. Since the moving knife 16 is controlled by the stretching mechanism 19, the displacement difference between the first end and the last end of the moving knife 16 can be controlled to change the speed of pushing the rubber forward, and the proportion of each time period can also be adjusted, so as to control the strength of kneading and extruding the rubber and the speed of pushing the rubber forward in different temperature environments, so that the rubber can be fully mixed and cured in different temperature environments, and the quality of the rubber is improved.

[0025] Specifically, the telescopic mechanism 19 comprises a hydraulic telescopic rod 20, a connecting head 21, a high-pressure pipeline 22 and a hydraulic pump 24. The end cover 18 at each end of the casing 14 is provided with the hydraulic telescopic rod 20. The movable end of the hydraulic telescopic rod 20 is provided with the connecting head 21. The connecting head 21 is provided with a rotating shaft 25. The leading end of the moving knife 16 is provided with a strip-shaped hole, and the trailing end is provided with a circular hole. Both the strip-shaped hole and the circular hole are in rotating connection with the rotating shaft 25. The hydraulic pump 24 delivers hydraulic oil to the hydraulic telescopic rod 20 through the high-pressure pipeline 22, thereby driving the hydraulic telescopic rod 20 to extend or retract. A control valve can be arranged on the high-pressure oil pipeline. The control valve is connected with a control circuit. The hydraulic telescopic rod 20 is independently controlled by the control valve, thereby facilitating the periodic extension and retraction of the hydraulic telescopic rod 20. The end of the hydraulic telescopic rod 20 is provided with the connecting head 21. The connecting head 21 is provided with the rotating shaft 25. The strip-shaped hole and the circular hole of the moving knife 16 are matched with the rotating shaft 25. The hydraulic telescopic rod 20 drives the two ends of the moving knife 16 to move.

[0026] Optionally, the end covers 18 on both sides are connected with a fixed knife 26. The fixed knife 26 is arranged between adjacent moving knives 16. When the rotating roller 15 rotates, both the moving knife 16 and the fixed knife 26 have the effect of rubbing and extruding the rubber. The fixed knife 26 is arranged between the moving knives 16. When the moving knives 16 move back and forth in the radial direction, the moving knives 16 move relative to the fixed knife 26. The relative movement of the moving knife 16 and the fixed knife 26 can improve the efficiency of rubbing and extruding the rubber.

[0027] Specifically, the rotating roller 15 is connected with a transmission shaft 23. The transmission shaft 23 is connected with the driving mechanism 17. The driving mechanism 17 comprises a speed-reducing motor 27 and a crank rocker mechanism 28. The speed-reducing motor 27 drives the transmission shaft 23 to rotate back and forth through the crank rocker mechanism 28. The crank rocker mechanism 28 refers to a hinge four-bar mechanism with a crank and a rocker. The crank is the driving part and rotates at a constant speed. The rocker is the driven part and swings back and forth at a variable speed. The connecting rod moves in a plane. The speed-reducing motor 27 refers to the integration of a speed reducer and a motor. The motor drives the crank to rotate after being reduced in speed and increased in torque by the speed reducer. The crank is connected with the rocker through the connecting rod. When the motor works, the rocker swings back and forth, thereby driving the transmission shaft 23 and the rotating roller 15 to rotate back and forth.

[0028] Specifically, the feeding port of the dry mixer 4 is provided with a feeding cylinder 29. The feeding cylinder 29 is provided with a spiral conveying shaft 30. The spiral conveying shaft 30 is connected with a feeding motor 31. The spiral conveying shaft 30 is driven to rotate by the feeding motor 31. When the spiral conveying shaft 30 rotates, it drives the rubber compound to move downward into the casing 14 of the dry mixer 4.

[0029] Specifically, the feeding cylinder 29 is provided with a feeding hopper 32 above it. The feeding hopper 32 facilitates feeding.

[0030] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rubber dry process production system characterized by, The device comprises a rubber breaker (1), a weighing belt conveyor (2), a collecting hopper (3), a dry mixer (4) and a cooler (5). The discharges of multiple rubber breakers (1) are conveyed to the collecting hopper (3) through the weighing belt conveyor (2). The discharge of the collecting hopper (3) is conveyed to the dry mixer (4) through a first conveyor (6). The discharge of the dry mixer (4) is conveyed to the cooler (5) through a second conveyor (7). The dry mixer (4) comprises a casing (14), a rotating roller (15), a moving knife (16) and a driving mechanism (17). The rotating roller (15) is arranged in the casing (14). The driving mechanism (17) drives the rotating roller (15) to rotate back and forth. One end of the casing (14) is provided with an inlet, and the other end is provided with an outlet. End covers (18) are rotatably connected to both ends of the casing (14). The rotating roller (15) is connected to the end covers (18). The end covers (18) are provided with telescopic mechanisms (19). The telescopic mechanisms (19) are used to drive the moving knife (16) to move back and forth along the radial direction intermittently.

2. A rubber dry process production system according to claim 1, characterized in that, The rubber breaker (1) is a double-roller breaker. The cooler (5) is a air-cooled cooler (5). The cooler (5) comprises a plate material conveyor (8), a fan cover (9), a gas conveying pipe (10) and a blower (11). The plate material conveyor (8) is arranged in the fan cover (9). The fan cover (9) is provided with the gas conveying pipe (10) on the side. The gas conveying pipe (10) is in communication with the blower (11).

3. A rubber dry process production system according to claim 2, characterized in that, The device further comprises a third conveyor (12) and a packing machine (13). The material of the plate material conveyor (8) falls onto the third conveyor (12). The third conveyor (12) is provided with the packing machine (13) on the side.

4. A rubber dry process production system according to claim 1, characterized in that, The initial state of the moving knife (16) is that the front end of the moving knife (16) is close to one end of the outlet, and the tail end of the moving knife (16) is close to one end of the inlet. In the T1 time period, the tail end of the moving knife (16) moves from the initial state to close to one side of the rotating roller (15), and then stops in the T2 time period. In the T1 and / or T2 time period, the front end of the moving knife (16) moves from the initial state to close to one side of the rotating roller (15), and then stops in the T3 time period. In the T3 time period, the tail end of the moving knife (16) moves a distance H to one side of the casing (14), and then moves to close to one side of the casing (14) in the T4 time period, and then stops in the T5 time period. In the T4 and / or T5 time period, the front end of the moving knife (16) moves to close to one side of the casing (14). In the T6 time period, the tail end of the moving knife (16) moves a distance H to the direction of the rotating roller (15) to return to the initial state.

5. A rubber dry process production system according to claim 1, characterized in that, The telescopic mechanism (19) comprises a hydraulic telescopic rod (20), a connecting head (21), a high-pressure pipeline (22) and a hydraulic pump (24), the end cover (18) at both ends of the casing (14) is provided with the hydraulic telescopic rod (20), the movable end of the hydraulic telescopic rod (20) is provided with the connecting head (21), the connecting head (21) is provided with a rotating shaft (25), the first end of the moving knife (16) is provided with a strip-shaped hole, and the tail end is provided with a circular hole, and the strip-shaped hole and the circular hole are both in rotating connection with the rotating shaft (25).

6. A rubber dry process production system according to claim 1, characterized in that, The fixed knife (26) is connected between the end covers (18) on both sides, and the fixed knife (26) is arranged between adjacent moving knives (16).

7. A rubber dry process production system according to claim 1, characterized in that, The rotating roller (15) is connected with a transmission shaft (23), the transmission shaft (23) is connected with the driving mechanism (17), the driving mechanism (17) comprises a speed reducer motor (27) and a crank rocker mechanism (28), and the speed reducer motor drives the transmission shaft (23) to reciprocate through the crank rocker mechanism (28).

8. A rubber dry process production system according to claim 1, characterized in that, The feed inlet of the dry mixer (4) is provided with a feeding cylinder (29), the feeding cylinder (29) is provided with a spiral conveying shaft (30) inside, and the spiral conveying shaft (30) is connected with a feeding motor (31).

9. A rubber dry process production system according to claim 8, characterized in that, The feeding cylinder (29) is provided with a feeding hopper (32) above.

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