Preparation device and preparation process for rubber granules

Abstract

The invention relates to a rubber granulation preparation device and a preparation process thereof, and relates to the technical field of rubber granulation, the rubber granulation preparation device comprises a base, a first motor is mounted on one side of the upper portion of the base, a feeding pipeline is mounted above the middle of a rack, a discharging mold is mounted on one side of the rack, a cooling box is mounted below a cutting chamber, and the cooling box is mounted below the cutting chamber. A fan is installed on one side of the bottom of the cooling box, a material distributing hopper is installed at the end, away from the fan, of the conveying pipeline, a vibrating screen is installed at the bottom of the material distributing hopper, and a transfer trolley is placed on one side of the vibrating screen. According to the preparation device and the preparation process of the rubber granules, rubber can be rapidly smelted, the smelted rubber is rapidly cut to form the rubber granules, the rubber granules can be prevented from being bonded together during cutting, the production efficiency is improved, meanwhile, raw materials can be collected, and waste of the materials is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of rubber granulation, and in particular to a preparation device and a preparation process of rubber granulation. Background Art

[0002] Rubber is divided into two types. Natural rubber is made from the gum extracted from plants such as safflower and tungsten; synthetic rubber is made from various monomers and is widely used in industry and life. Granular rubber refers to rubber particles that are packaged into blocks after the clots, films or absolute films are broken into 2-5mm particles by a granulating machine and then dried and pressurized. The preparation process of rubber granulation requires strict control of parameters such as mixing temperature, mixing time, granulation temperature, granulation speed, etc. to ensure the performance and quality of the rubber particles.

[0003] In the production process of the existing rubber granulation preparation device, since the rubber has just been granulated, its surface temperature is too high and it is easy to stick together. Subsequently, the rubber particles that are stuck together need to be separated, which not only increases the steps of the production process, but also affects the fullness of the rubber particles that are separated again. Therefore, the optimization and improvement of the rubber granulation process is of great significance to improving the production efficiency and product quality of rubber products.

[0004] In view of the above situation, we propose a rubber granulation preparation device and preparation process based on the existing technology. Summary of the invention

[0005] The purpose of the present application is to provide a rubber granulation preparation device and a preparation process thereof.

[0006] In the first aspect, the present application provides a rubber granulation preparation device adopts the following technical solution: A rubber granulation preparation device comprises a base, a first motor is installed on one side above the base, and a frame is installed on the other side above the base, a screw for extrusion is installed in the internal cavity of the frame, a feeding pipe is installed above the middle part of the frame, and a heating electric furnace for heating the internal cavity of the frame and the screw is installed below the frame, a discharging mold is installed on one side of the frame, and a cutting chamber is installed on the side of the discharging mold away from the frame, a reagent box is installed above the cutting chamber, a cooling box is installed below the cutting chamber, and a fan is installed on one side of the bottom of the cooling box, and a conveying pipe is installed on the other side of the bottom of the cooling box, a distribution hopper is installed at the end of the conveying pipe away from the fan, and a vibrating screen is installed at the bottom of the distribution hopper, and a transfer trolley is placed on one side of the vibrating screen.

[0007] By adopting the above technical scheme, first, the heating electric furnace heats the internal cavity and the screw of the frame, and the temperature of the internal cavity of the frame is heated to - degrees Celsius, and then the strip rubber or natural rubber is put into the internal cavity of the frame from the feeding pipe, and then the first motor drives the screw in the internal cavity of the frame to rotate and melt through the first transmission shaft, the coupling and the speed regulator. The smelted rubber passes through the discharging mold to form strip rubber, and the strip rubber is cut and granulated inside the cutting chamber to form rubber particles, and the reagent box contains an isolation agent. When the strip rubber is cut and granulated, the isolation agent enters the interior of the cutting chamber and collides with the rubber particles, thereby preventing the rubber particles from secondary bonding, and then the rubber particles enter the interior of the cooling box for cooling, and the cooled rubber particles enter the interior of the distribution hopper through the conveying pipe. At this time, the rubber particles are cooled again inside the conveying pipe, and the fan provides wind force to the interior of the conveying pipe as the power for conveying the rubber particles, and the rubber particles enter the interior of the vibrating screen for screening after being divided inside the distribution hopper, and then the rubber particles that pass the screening enter the interior of the transfer cart.

[0008] Furthermore, a first transmission shaft is installed at the output end of the first motor, and a coupling is installed at a side of the first transmission shaft away from the first motor, and a speed regulator is installed at a side of the coupling away from the first transmission shaft.

[0009] By adopting the above technical solution, in actual use, after the first motor is turned on, the coupling is driven to start moving through the first transmission shaft, and then the coupling drives the screw in the internal cavity of the frame to rotate through the speed regulator. Since both the coupling and the speed regulator adopt existing mature technologies, they will not be described in detail here.

[0010] Furthermore, at least two shearing structures are installed between the internal cavity of the frame and the screw rod, and the shearing structure includes a fixed sleeve, a spring column and a shearing knife, wherein the fixed sleeve is welded to the internal cavity of the frame, and the spring column is installed inside the fixed sleeve, and the shearing knife is installed at one end of the spring column, and the end of the shearing knife away from the spring column is tightly fitted with the surface of the screw rod.

[0011] By adopting the above technical scheme, strip rubber or natural rubber is put into the internal cavity of the frame from the feed pipe to be softened by heating, and then the rubber is kneaded by the rotation of the screw. Due to the setting of the shearing structure, one end of the spring column supports the fixed sleeve, and the other end thereof supports the shearing knife so that the surface of the shearing knife is closely fitted with the surface of the screw. When the screw rotates, the screw cooperates with the shearing knife to shear the softened rubber, accelerates the melting of the rubber, and at the same time makes the rubber mixed more evenly, thereby improving the efficiency of rubber kneading.

[0012] Furthermore, a second motor is installed on one side of the cutting chamber, and a second transmission shaft is installed on the output end of the second motor, a rotating joint is installed on the side of the second transmission shaft away from the second motor, and the rotating joint is located inside the cutting chamber, and an eccentric cutter is installed on the side of the rotating joint away from the second transmission shaft.

[0013] By adopting the above technical solution, the strip rubber passes through the discharge mold and enters the cutting chamber for cutting. First, the second motor drives the rotary joint to rotate through the second transmission shaft, and the rotary joint drives the eccentric cutter to cut the strip rubber into granular rubber particles.

[0014] Furthermore, a third motor is installed on one side of the reagent box, and a stirring blade is installed inside the reagent box, and the third motor is rotatably connected to the stirring blade through a bearing, a filling pipe is installed on the top of the reagent box, and a weighing scale is installed on one side of the bottom of the reagent box, a reagent tube is installed at the bottom outlet of the reagent box, and the reagent box is connected to the rotary joint through the weighing scale and the reagent tube.

[0015] By adopting the above technical solution, the corresponding isolation agent is injected into the interior of the reagent box through the reagent tube. At this time, the third motor drives the stirring blade to rotate through the bearing, so that the isolation agent is mixed more evenly, and the isolation agent is injected into the interior of the rotary joint through the reagent tube through the precise measurement of the measuring scale, which can save more raw materials. Here, the measuring scale adopts the existing technology, such as: YLJ-LC model produced by Licheng Automation Equipment Co., Ltd. or LWGY intelligent liquid turbine flowmeter produced by Hangzhou Liance Automation Co., Ltd., which will not be repeated here.

[0016] Furthermore, there are three eccentric cutters, and the three eccentric cutters are distributed in a circular array around the cross-sectional center of the rotary joint. The interior of the eccentric cutter is a hollow structure, and a plurality of spray holes are arranged on the surface of the eccentric cutter. At the same time, the internal hollow of the eccentric cutter is connected to the rotary joint.

[0017] By adopting the above technical solution, the second transmission shaft drives the eccentric cutter to rotate through the rotary joint, and the isolation agent inside the reagent box enters the interior of the rotary joint through the reagent tube. On the one hand, the rotary joint can drive the eccentric cutter to cut the strip rubber into rubber particles by rotation, and on the other hand, during the cutting process, the isolation agent is sprayed onto the surface of the rubber particles through the eccentric cutter through a number of spray holes. This arrangement allows the cut surface of each strip rubber to be evenly coated with the isolation agent, so that the rubber particles can be bonded together again.

[0018] Furthermore, a plurality of baffles are arranged inside the cooling box, and the baffles are hollow-out, and adjacent baffles are arranged crosswise with each other.

[0019] By adopting the above technical solution, the baffle can enable the rubber particles to circulate inside the cooling box for a longer time, so that the rubber particles can be cooled more fully. At the same time, the hollow design of the baffle can accelerate the circulation of air inside the cooling box and accelerate the cooling of the rubber particles.

[0020] Furthermore, the fans are connected to the bottom of the cooling box through the conveying pipeline, and the cooling box is connected to the distribution hopper through the conveying pipeline.

[0021] Furthermore, a dust collector is installed above the distribution hopper, a sealing cover is installed above the vibration screen, and dust suction pipes are installed above the sealing cover and above the distribution hopper. The distribution hopper and the vibration screen are connected to the dust collector through the dust suction pipe.

[0022] By adopting the above technical solution, the fan conveys the rubber particles from the inside of the cooling box to the inside of the distribution hopper through the conveying pipe. At this time, the setting of the conveying pipe can further cool the rubber particles. When the rubber particles enter the inside of the distribution hopper, the isolation agent on the surface of the rubber particles will form a powder state due to the cooling effect. At this time, the dust collector sucks the powdered isolation agent through the dust suction pipe and collects it for reuse, saving raw materials. The rubber particles are sieved according to size after granulation in the vibrating screen to remove unqualified particles. At the same time, the isolation agent on the surface of the rubber particles will continue to suck the powdered isolation agent into the dust collector through the dust suction pipe for collection.

[0023] In a second aspect, a preparation process for rubber granulation comprises the following steps: Step 1: Strip rubber or natural rubber and compounding agents are fed from a feed pipe into the inner cavity of a frame to be melted to obtain a mixed rubber; Step 2: The mixed rubber passes through a discharging die to form a strip of rubber, and the strip of rubber is cut and granulated inside a cutting chamber to form rubber particles; Step 3: The rubber particles are then cooled in the cooling box, and the cooled rubber particles are then transferred to the distribution hopper through the conveying pipe for distribution; Step 4: After the rubber particles are sorted in the dividing hopper, they enter the vibrating screen for screening. Then, the qualified rubber particles enter the transfer trolley for collection.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The rubber granulation preparation device and preparation process involved in the present application can quickly melt rubber, and then quickly cut it into rubber particles after melting. During cutting, the rubber particles can be prevented from sticking together, thereby improving the production efficiency. At the same time, the raw materials can be collected to avoid material waste; 2. In the present application, due to the setting of the shearing structure, one end of the spring column supports the fixed sleeve, and the other end thereof supports the shearing knife so that the surface of the shearing knife is closely fitted with the surface of the screw. When the screw rotates, the screw cooperates with the shearing knife to shear the softened rubber, accelerates the melting of the rubber, and at the same time makes the rubber mixed more evenly, thereby improving the efficiency of rubber mixing; 3. The second transmission shaft of the present application drives the eccentric cutter to rotate through a rotary joint, and the isolation agent inside the reagent box enters the interior of the rotary joint through the reagent tube. On the one hand, the rotary joint can drive the eccentric cutter to cut the strip rubber into rubber particles by rotation. On the other hand, during the cutting process, the isolation agent is sprayed onto the surface of the rubber particles through a plurality of spray holes by the eccentric cutter. This arrangement enables the cut surface of each strip rubber to be evenly coated with the isolation agent, so that the rubber particles can be bonded together again. The fan transports the rubber particles from the inside of the cooling box to the inside of the distribution hopper through a conveying pipe. At this time, the arrangement of the conveying pipe can further cool the rubber particles. When the rubber particles enter the inside of the distribution hopper, the isolation agent on the surface of the rubber particles will form a powder state due to the cooling effect. At this time, the dust collector sucks in the powdered isolation agent through the dust suction pipe for collection for reuse, saving raw materials, and the rubber particles are screened by size in the vibrating screen to remove unqualified particles. At the same time, the isolation agent on the surface of the rubber particles will continue to be sucked into the dust collector through the dust suction pipe to be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 This application Figure 1 The enlarged structural diagram at A in the middle; Figure 3 is a schematic diagram of the interior side view of the cutting chamber in the present application; Figure 4 It is a schematic diagram of the structure inside the cutting chamber and the cooling box in this application.

[0026] Explanation of the reference numerals: 1. base; 2. first motor; 201. first transmission shaft; 202. coupling; 203. speed regulator; 3. frame; 4. screw; 5. feed pipe; 6. heating furnace; 7. shearing structure; 701. fixing sleeve; 702. spring column; 703. shearing knife; 8. discharging mold; 9. cutting chamber; 901. second motor; 902. second transmission shaft; 903. rotary joint; 904. eccentric cutter; 10. reagent box; 11. cooling box; 1101. baffle; 12. third motor; 13. stirring blade; 14. filling pipe; 15. weighing scale; 16. reagent pipe; 17. fan; 18. conveying pipe; 19. distribution hopper; 20. dust collector; 21. vibrating screen; 22. transfer trolley; 23. sealing cover; 24. dust suction pipe. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 - Attachment Figure 4 , further details of this application are given.

[0028] Embodiment: The present application provides a rubber granulation preparation device adopts the following technical solution: A rubber granulation preparation device comprises a base 1, a first motor 2 is installed on one side above the base 1, and a frame 3 is installed on the other side above the base 1, a screw 4 for extrusion is installed in the internal cavity of the frame 3, a feeding pipe 5 is installed above the middle of the frame 3, and a heating electric furnace 6 for heating the internal cavity of the frame 3 and the screw 4 is installed below the frame 3, a discharging mold 8 is installed on one side of the frame 3, and a cutting chamber 9 is installed on the side of the discharging mold 8 away from the frame 3, a reagent box 10 is installed above the cutting chamber 9, a cooling box 11 is installed below the cutting chamber 9, and a fan 17 is installed on one side of the bottom of the cooling box 11, and a conveying pipe 18 is installed on the other side of the bottom of the cooling box 11, a distribution hopper 19 is installed at the end of the distribution pipe 18 away from the fan 17, and a vibrating screen 21 is installed at the bottom of the distribution hopper 19, and a transfer trolley 22 is placed on one side of the vibrating screen 21.

[0029] By adopting the above technical solution, first, the heating electric furnace 6 heats the internal cavity of the frame 3 and the screw 4, and the temperature of the internal cavity of the frame 3 is heated to 60-80 degrees Celsius, and then the strip rubber or natural rubber is put into the internal cavity of the frame 3 from the feeding pipe 5, and then the first motor 2 drives the screw 4 in the internal cavity of the frame 3 to rotate and melt through the first transmission shaft 201, the coupling 202 and the speed regulator 203. The melted rubber passes through the discharge mold 8 to form a strip rubber, and the strip rubber is cut and granulated inside the cutting chamber 9 to form rubber particles, and the reagent box 10 contains an isolation agent, and the isolation agent here is any one of but not limited to a polyurethane rubber particle isolation agent, a polyester rubber particle isolation agent, an epoxy resin rubber particle isolation agent and an inorganic rubber particle isolation agent. Or a mixture of multiple types. When in use, the isolating agent can be prepared into liquids of different concentrations according to different usage requirements and added to the inside of the reagent box 10 for use. When the strip rubber is cut and granulated, the isolating agent enters the inside of the cutting chamber 9 and collides with the rubber particles, thereby preventing the rubber particles from secondary bonding. Then the rubber particles enter the inside of the cooling box 11 for cooling. The cooled rubber particles enter the inside of the dividing hopper 19 through the conveying pipe 18. At this time, the rubber particles are cooled again inside the conveying pipe 18, and the fan 17 provides wind force to the inside of the conveying pipe 18 as the power for conveying the rubber particles. After the rubber particles are divided inside the dividing hopper 19, they enter the inside of the vibrating screen 21 for screening, and then the rubber particles that pass the screening enter the inside of the transfer cart 22.

[0030] A first transmission shaft 201 is installed at the output end of the first motor 2 , and a coupling 202 is installed at a side of the first transmission shaft 201 away from the first motor 2 , while a speed regulator 203 is installed at a side of the coupling 202 away from the first transmission shaft 201 .

[0031] By adopting the above technical solution, in actual use, after the first motor 2 is turned on, the coupling 202 is driven to start moving through the first transmission shaft 201, and then the coupling 202 drives the screw 4 in the internal cavity of the frame 3 to rotate through the speed regulator 203. Since both the coupling 202 and the speed regulator 203 adopt existing mature technologies, they are not described in detail here.

[0032] At least two shear structures 7 are installed between the internal cavity of the frame 3 and the screw 4, and the shear structure 7 includes a fixed sleeve 701, a spring column 702 and a shear knife 703, wherein the fixed sleeve 701 is welded to the internal cavity of the frame 3, and the spring column 702 is installed inside the fixed sleeve 701, and the shear knife 703 is installed at one end of the spring column 702, and the end of the shear knife 703 away from the spring column 702 is tightly fitted with the surface of the screw 4.

[0033] By adopting the above technical scheme, the strip rubber or natural rubber is put into the internal cavity of the frame 3 from the feed pipe 5 to be softened by heating, and then the rubber is kneaded by the rotation of the screw 4. Due to the setting of the shearing structure 7, one end of the spring column 702 supports the fixed sleeve 701, and the other end thereof supports the shearing knife 703 so that the surface of the shearing knife 703 is closely fitted with the surface of the screw 4. When the screw 4 rotates, the screw 4 cooperates with the shearing knife 703 to shear the softened rubber, accelerate the melting of the rubber, and at the same time make the rubber mixed more evenly, thereby improving the efficiency of rubber kneading.

[0034] A second motor 901 is installed on one side of the cutting chamber 9, and a second transmission shaft 902 is installed on the output end of the second motor 901. A rotary joint 903 is installed on the side of the second transmission shaft 902 away from the second motor 901, and the rotary joint 903 is located inside the cutting chamber 9. An eccentric cutter 904 is installed on the side of the rotary joint 903 away from the second transmission shaft 902.

[0035] By adopting the above technical solution, the strip rubber passes through the discharge mold 8 and enters the cutting chamber 9 for cutting. First, the second motor 901 drives the rotary joint 903 to rotate through the second transmission shaft 902, and the rotary joint 903 drives the eccentric cutter 904 to cut the strip rubber into granular rubber particles.

[0036] A third motor 12 is installed on one side of the reagent box 10, and a stirring blade 13 is installed inside the reagent box 10. At the same time, the third motor 12 is rotatably connected to the stirring blade 13 through a bearing. A filling pipe 14 is installed above the reagent box 10, and a weighing scale 15 is installed on one side of the bottom of the reagent box 10. A reagent tube 16 is installed at the bottom outlet of the reagent box 10, and the reagent box 10 is connected to the rotary joint 903 through the weighing scale 15 and the reagent tube 16.

[0037] By adopting the above technical solution, the corresponding isolation agent is injected into the interior of the reagent box 10 through the reagent tube 16. At this time, the third motor 12 drives the stirring blade 13 to rotate through the bearing, so that the isolation agent is mixed more evenly, and the isolation agent is injected into the interior of the rotary joint 903 through the reagent tube 16 through the precise measurement of the weighing scale 15, which can save more raw materials. Here, the weighing scale 15 adopts existing technology, such as: YLJ-LC model produced by Licheng Automation Equipment Co., Ltd. or LWGY intelligent liquid turbine flowmeter produced by Hangzhou Liance Automation Co., Ltd., which will not be repeated here.

[0038] There are three eccentric cutters 904 , and the three eccentric cutters 904 are distributed in a circular array around the cross-sectional center of the rotary joint 903 . The interior of the eccentric cutter 904 is a hollow structure, and a plurality of spray holes are provided on the surface of the eccentric cutter 904 . At the same time, the hollow interior of the eccentric cutter 904 is connected to the rotary joint 903 .

[0039] By adopting the above technical solution, the second transmission shaft 902 drives the eccentric cutter 904 to rotate through the rotary joint 903, and the isolation agent inside the reagent box 10 enters the interior of the rotary joint 903 through the reagent tube 16. On the one hand, the rotary joint 903 can drive the eccentric cutter 904 to cut the strip rubber into rubber particles by rotation. On the other hand, during the cutting process, the isolation agent is sprayed onto the surface of the rubber particles through the eccentric cutter 904 through a number of spray holes. This arrangement allows the cut surface of each strip rubber to be evenly coated with the isolation agent, so that the rubber particles can be bonded together again.

[0040] A plurality of baffles 1101 are arranged inside the cooling box 11 , and the baffles 1101 are hollow-out in design, and adjacent baffles 1101 are arranged crosswise with each other.

[0041] By adopting the above technical solution, the baffle 1101 can allow the rubber particles to circulate inside the cooling box 11 for a longer time, so that the rubber particles can be cooled more fully. At the same time, the hollow design of the baffle 1101 can accelerate the circulation of air inside the cooling box 11 and accelerate the cooling of the rubber particles.

[0042] The fan 17 is connected to the bottom of the cooling box 11 through the conveying pipe 18, and the cooling box 11 is connected to the distribution hopper 19 through the conveying pipe 18. A dust collector 20 is installed above the distribution hopper 19, a sealing cover 23 is installed above the vibrating screen 21, and dust suction pipes 24 are installed above the sealing cover 23 and above the distribution hopper 19. The distribution hopper 19 and the vibrating screen 21 are connected to the dust collector 20 through the dust suction pipe 24.

[0043] By adopting the above technical solution, the fan 17 conveys the rubber particles from the inside of the cooling box 11 to the inside of the distribution hopper 19 through the conveying pipe 18. At this time, the setting of the conveying pipe 18 can further cool the rubber particles. When the rubber particles enter the inside of the distribution hopper 19, due to the cooling effect, the isolation agent on the surface of the rubber particles will form a powder state. At this time, the dust collector 20 sucks the powdered isolation agent through the dust suction pipe 24 and collects it for reuse, saving raw materials. The rubber particles are sieved according to size in the vibration screen 21 to remove unqualified particles. At the same time, the isolation agent on the surface of the rubber particles will continue to suck the powdered isolation agent into the dust collector 20 through the dust suction pipe 24 for collection.

[0044] A preparation process for rubber granulation, the preparation process comprising the following steps: Step 1: Strip rubber or natural rubber and compounding agents are fed from the feed pipe 5 into the inner cavity of the frame 3 to be melted to obtain a mixed rubber; Step 2: The mixed rubber passes through the discharging die 8 to form a strip of rubber, and the strip of rubber is cut and granulated inside the cutting chamber 9 to form rubber particles; Step 3: The rubber particles are then cooled in the cooling box 11, and the cooled rubber particles are then fed into the distribution hopper 19 through the delivery pipe 18 for distribution; Step 4: After the rubber particles are divided in the dividing hopper 19, they enter the vibrating screen 21 for screening, and then the qualified rubber particles enter the transfer trolley 22 for collection.

[0045] By adopting the above technical solution, on the one hand, the rubber can be melted more evenly during melting, and on the other hand, the isolation agent can be adhered to it during cutting to prevent the rubber particles from sticking together in the first place. At the same time, the isolation agent can be collected after cooling, so that the isolation agent can be reused to reduce production costs.

[0046] The implementation principle of the embodiment of the present application is as follows: first, the heating electric furnace 6 is used to heat the internal cavity of the frame 3 and the screw 4, and the temperature of the internal cavity of the frame 3 is heated to 60-80 degrees Celsius, and then the strip rubber or natural rubber is put into the internal cavity of the frame 3 from the feeding pipe 5, and then the first motor 2 drives the screw 4 in the internal cavity of the frame 3 to rotate and melt through the first transmission shaft 201, the coupling 202 and the speed regulator 203, and the melted rubber passes through the discharge mold 8 to form a strip rubber, and the strip rubber is cut and granulated inside the cutting chamber 9 to form rubber particles, and the second transmission shaft 902 drives the eccentric cutter 904 to rotate through the rotary joint 903, and the isolation agent inside the reagent box 10 enters the interior of the rotary joint 903 through the reagent tube 16, and the rotary joint 903 can drive the eccentric cutter 904 to cut the strip rubber into rubber particles through rotation on the one hand, and on the other hand, during the cutting process, the isolation agent passes through the eccentric cutter 904 through a plurality of sprays The spray holes spray onto the surface of the rubber particles. This arrangement allows the cutting surface of each rubber strip to be evenly coated with the isolation agent, which can make the rubber particles bond together again. The reagent box 10 contains the isolation agent. While the rubber strips are being cut and granulated, the isolation agent enters the cutting chamber 9 and collides with the rubber particles, thus preventing the rubber particles from bonding again. The rubber particles then enter the cooling box 11 for cooling. The cooled rubber particles enter the distribution hopper 19 through the conveying pipe 18. At this time, the rubber particles are cooled again in the conveying pipe 18, and the fan 17 provides wind force for the conveying pipe 18 as the power for conveying the rubber particles. The fan 17 conveys the rubber particles from the cooling box 11 to the distribution hopper 19 through the conveying pipe 18. After the rubber particles are divided in the distribution hopper 19, they enter the vibrating screen 21 for screening. Then, the qualified rubber particles enter the transfer cart 22.

[0047] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rubber granulation preparation device, comprising a base (1), characterized in that: A first motor (2) is installed on one side above the base (1), and a frame (3) is installed on the other side above the base (1); a screw (4) for extrusion is installed in the internal cavity of the frame (3); a feed pipe (5) is installed above the middle of the frame (3); and a heating furnace (6) for heating the internal cavity of the frame (3) and the screw (4) is installed below the frame (3); a discharge mold (8) is installed on one side of the frame (3), and the discharge mold (8) is installed on the side away from the frame (3). A cutting chamber (9) is provided, and a reagent box (10) is installed above the cutting chamber (9), a cooling box (11) is installed below the cutting chamber (9), and a fan (17) is installed on one side of the bottom of the cooling box (11), and a conveying pipe (18) is installed on the other side of the bottom of the cooling box (11), a distribution hopper (19) is installed at the end of the conveying pipe (18) away from the fan (17), and a vibrating screen (21) is installed at the bottom of the distribution hopper (19), and a transfer trolley (22) is placed on one side of the vibrating screen (21).

2. A rubber granulation preparation device according to claim 1, characterized in that: A first transmission shaft (201) is installed at the output end of the first motor (2), and a coupling (202) is installed on the side of the first transmission shaft (201) away from the first motor (2), while a speed regulator (203) is installed on the side of the coupling (202) away from the first transmission shaft (201).

3. The rubber granulation preparation device according to claim 1, characterized in that: At least two shearing structures (7) are installed between the internal cavity of the frame (3) and the screw rod (4), and the shearing structure (7) comprises a fixing sleeve (701), a spring column (702) and a shearing knife (703), wherein the fixing sleeve (701) is welded to the internal cavity of the frame (3), and the spring column (702) is installed inside the fixing sleeve (701), and the shearing knife (703) is installed at one end of the spring column (702), and the end of the shearing knife (703) away from the spring column (702) is in close contact with the surface of the screw rod (4).

4. A rubber granulation preparation device according to claim 1, characterized in that: A second motor (901) is installed on one side of the cutting chamber (9), and a second transmission shaft (902) is installed on the output end of the second motor (901); a rotating joint (903) is installed on the side of the second transmission shaft (902) away from the second motor (901); the rotating joint (903) is located inside the cutting chamber (9); and an eccentric cutter (904) is installed on the side of the rotating joint (903) away from the second transmission shaft (902).

5. A rubber granulation preparation device according to claim 4, characterized in that: A third motor (12) is installed on one side of the reagent box (10), and a stirring blade (13) is installed inside the reagent box (10). The third motor (12) is rotatably connected to the stirring blade (13) via a bearing. A filling pipe (14) is installed above the reagent box (10), and a weighing scale (15) is installed on one side of the bottom of the reagent box (10). A reagent tube (16) is installed at the bottom outlet of the reagent box (10), and the reagent box (10) is connected to the rotary joint (903) via the weighing scale (15) and the reagent tube (16).

6. A rubber granulation preparation device according to claim 5, characterized in that: Three eccentric cutters (904) are provided, and the three eccentric cutters (904) are distributed in a circular array around the cross-sectional center of the rotary joint (903); the interior of the eccentric cutter (904) is a hollow structure, and a plurality of spray holes are provided on the surface of the eccentric cutter (904); and the hollow interior of the eccentric cutter (904) is connected to the rotary joint (903).

7. The rubber granulation preparation device according to claim 1, characterized in that: A plurality of baffles (1101) are arranged inside the cooling box (11), and the baffles (1101) are of a hollow design, and adjacent baffles (1101) are arranged and distributed in a cross-like manner.

8. The rubber granulation preparation device according to claim 1, characterized in that: The fans (17) are respectively connected to the bottom of the cooling box (11) through the conveying pipes (18), and the cooling box (11) is connected to the distribution hopper (19) through the conveying pipes (18).

9. The rubber granulation preparation device according to claim 1, characterized in that: A dust collector (20) is installed above the distribution hopper (19), a sealing cover (23) is installed above the vibration screen (21), and dust suction pipes (24) are installed above the sealing cover (23) and above the distribution hopper (19), and the distribution hopper (19) and the vibration screen (21) are both connected to the dust collector (20) via the dust suction pipe (24).

10. A process for preparing rubber granules, using the rubber granules preparation device according to any one of claims 1 to 9, characterized in that: The preparation process comprises the following steps: Step 1: Strip rubber or natural rubber and compounding agents are fed from a feed pipe (5) into an internal cavity of a frame (3) to be melted to obtain a mixed rubber; Step 2: the mixed rubber passes through a discharge die (8) to form a rubber strip, and the rubber strip is cut and granulated inside a cutting chamber (9) to form rubber particles; Step 3: The rubber particles are then cooled in the cooling box (11), and the cooled rubber particles are then passed through the conveying pipe (18) and into the distribution hopper (19) for distribution; Step 4: After the rubber particles are separated in the separation hopper (19), they enter the vibrating screen (21) for screening, and then the qualified rubber particles enter the transfer trolley (22) for collection.

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