Rubber particle mixing equipment for rubber product production

Abstract

The invention discloses rubber particle mixing equipment for rubber product production, and particularly relates to the technical field of rubber production, the rubber particle mixing equipment comprises a mixing tank, the top surface of the mixing tank is rotatably connected with a tank cover, two mixing rollers can be driven to move through a fixing frame, and transmission bevel gears can drive the mixing rollers to rotate; then, a mixing roller turns over and mixes the rubber particles at the bottom of the mixing tank, meanwhile, the mixing roller moves to drive a protective shell, a sliding block and a cleaning block to move, and at the moment, the rubber particles accumulated on the inner wall of the bottom of the mixing tank are pushed to the center of the bottom of the mixing tank along the arc-shaped surface of the cleaning block and turned over and mixed by the mixing roller; at the moment, under the tooth meshing transmission action of first conical teeth and second conical teeth, the rubber particles mixed by the mixing roller can be turned back to the middle part of the mixing tank by material returning blades, so that the effects of mixing the rubber particles and conveniently and continuously turning and mixing the rubber particles on the inner wall of the bottom of the mixing tank are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber production, and in particular to a rubber particle mixing device for producing rubber products. Background Art

[0002] Rubber products refer to the activities of producing various rubber products using natural and synthetic rubber as raw materials. It also includes rubber products produced from waste rubber. The output of synthetic rubber has greatly exceeded that of natural rubber. Among them, the largest output is styrene-butadiene rubber. There are many types of rubber products, but the production process is basically the same. During the production and processing of rubber products, in order to improve the use effect of rubber, it is often necessary to mix and prepare multiple rubbers or compounding agents.

[0003] In the prior art, rubber particles are mostly mixed by rotating a mixing tank and a stirring shaft and a stirring paddle therein. However, the rubber particles will continue to sink during mixing due to their own weight and density. At this time, the rubber particles at the bottom of the tank near the inner wall are not easily turned over, which may affect the mixing effect. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a rubber particle mixing device for producing rubber products to solve the problems raised in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A rubber granule mixing device for producing rubber products, comprising a mixing tank, a tank cover rotatably connected to the top surface of the mixing tank, a discharge valve fixedly mounted on the bottom surface of the mixing tank, a rotating shaft rotatably connected to the interior of the mixing tank, a positioning frame fixedly mounted inside the mixing tank, the positioning frame rotatably connected to the rotating shaft, a plurality of stirring shafts disposed inside the mixing tank, and a plurality of stirring blades fixedly mounted on the outer circumferential surfaces of the plurality of stirring shafts; A receiving block, the receiving block is fixedly mounted on the top surface of the rotating shaft, a connecting block is provided on the top surface of the receiving block, a card slot is opened on the top surface of the connecting block, a driving motor is fixedly mounted on the top surface of the tank cover, a connecting cone is fixedly mounted on the bottom surface of the driving shaft of the driving motor, and the connecting cone is movably sleeved with the inner wall surface of the card slot; A positioning groove, the positioning groove is provided on the inner bottom surface of the mixing tank, a limiting groove is provided on the inner circumferential wall surface of the mixing tank, a gear disc is fixedly installed on the inner bottom surface of the positioning groove, the top surface of the gear disc is meshed and connected with two transmission bevel teeth, a clamping ring is fixedly installed on the inner bottom surface of the mixing tank, a sealing cover is fixedly installed on the top surface of the clamping ring, the inner circumferential wall surface of the sealing cover is movably sleeved with the rotating shaft, and a protective cover is rotatably connected between the clamping ring and the sealing cover; The two gears are connected with each other through the inner wall of the gear train, and the two gears are connected with each other through the inner wall of the gear train, and the two gears are connected with each other through the inner wall of the gear train. A mounting ring, the mounting ring is fixedly sleeved on the outer circumferential wall of the rotating shaft, two connecting sleeves are fixedly installed on the outer circumferential wall of the mounting ring, a return shaft is rotatably connected inside the connecting sleeve, a plurality of return blades are fixedly sleeved on the outer circumferential wall of the return shaft, and the return shaft is fixedly sleeved on the inner circumferential wall of the second bevel gear; Two groups of rotating components are arranged on the outer circumferential wall surface of the rotating shaft and are used to drive multiple stirring shafts and multiple stirring blades to rotate.

[0006] By adopting the above technical solution, when in use, the staff adds rubber particles into the interior of the mixing tank, and then the staff closes the tank cover on the top of the mixing tank. During this process, the connecting cone will be inserted into the interior of the connecting block slot, and then the staff uses a driving motor to drive the rotating shaft and multiple stirring blades to rotate to mix the rubber particles. At the same time, during the mixing process, the staff adds the compounding agent into the interior of the mixing tank, and then the rotation of the rotating shaft will drive the fixed frame to rotate. At this time, the rotating fixed frame will drive the two mixing rollers to move. At this time, the transmission bevel gear and the tooth meshing transmission of the gear disc will drive the mixing roller to rotate, and then the mixing roller will flip and mix the rubber particles at the bottom of the mixing tank. At the same time, the movement of the mixing roller will drive the protective shell, slider and cleaning block to move. At this time, the rubber particles accumulated in the mixing tank will be turned over and mixed. The rubber particles on the inner wall of the bottom of the mixing tank will be pushed to the center of the bottom of the mixing tank along the curved surface of the cleaning block, and will be turned and mixed by the mixing roller. The rotation of the mixing roller will drive the first bevel gear to rotate. At this time, under the tooth meshing transmission of the first bevel gear and the second bevel gear, the second bevel gear will drive the return shaft and the multiple return blades on its surface to rotate, and then the rotating return blades will turn the rubber particles mixed by the mixing roller back to the middle part of the mixing tank. Then, the rubber particles close to the inner wall at the top and middle of the mixing tank will automatically fall to the bottom of the mixing tank under the action of gravity. Repeated operations can make the rubber particles close to the inner wall of the mixing tank continuously turned and mixed, thereby achieving the effect of mixing the rubber particles and facilitating the continuous turning and mixing of the rubber particles at the inner wall of the bottom of the mixing tank.

[0007] Preferably, the rotating assembly includes: two transmission boxes, both of which are fixedly mounted on the outer circumferential wall of the rotating shaft, the two return shafts respectively penetrate into the interior of the two transmission boxes, the outer circumferential walls of the two return shafts are provided with transmission grooves, the outer circumferential walls of several of the stirring shafts are fixedly sleeved with driven pulleys, the outer circumferential walls of several of the stirring shafts are fixedly sleeved with driving pulleys, a first transmission belt is provided between the transmission groove and the driving pulley, the transmission groove and the driving pulley are connected by the first transmission belt, a second transmission belt is provided between the two driven pulleys, the two driven pulleys are connected by the second transmission belt, a third transmission belt is provided between the two driving pulleys, and the two driving pulleys are connected by the third transmission belt.

[0008] By adopting the above technical solution, when the return shaft rotates, the return shaft will drive the first transmission belt to rotate, and then the first transmission belt will drive the active pulley and the stirring shaft to rotate. At this time, the stirring shaft rotating at the bottom will drive the driven pulley on the surface to rotate, and then under the belt transmission action of the second transmission belt, the other stirring shaft will be driven to rotate together, and then the transmission action of the third transmission belt can make the adjacent stirring shaft rotate again, so that the self-rotation of multiple stirring shafts and stirring blades can be realized through the belt transmission of the first transmission belt and multiple second transmission belts and the pressure relief hole, and then when the rubber particles are mixed, the stirring blades that revolve and rotate at the same time can enhance the effect of turning the rubber particles in the opposite direction, thereby facilitating the improvement of the uniformity of the mixing of the rubber particles.

[0009] Preferably, a feeding hopper is fixedly mounted on the top surface of the tank cover, an electric motor is fixedly mounted on one side of the feeding hopper, a feeding roller is rotatably connected to the inside of the feeding hopper, a plurality of grooves are provided on the surface of the feeding roller, and one end of the electric motor drive shaft is fixedly mounted to the feeding roller.

[0010] By adopting the above technical solution, the staff can add the compounding agent into the feeding hopper and then drive the electric motor, and then the driving shaft of the electric motor will drive the feed roller to rotate. Then, since the multiple grooves on the surface of the feed roller have the same size, the feed roller rotates to deliver the same amount of compounding agent, thereby facilitating automatic quantitative delivery of the compounding agent.

[0011] Preferably, a sealing groove is provided on the top surface of the mixing tank, a sealing ring is fixedly sleeved inside the sealing groove, and an insert ring is fixedly installed on the bottom surface of the tank cover, and the insert ring is movably sleeved with the inner circular wall of the sealing groove.

[0012] By adopting the above technical solution, the sealing between the tank cover and the mixing tank can be improved.

[0013] Preferably, a plurality of mounting shells are fixedly mounted on the outer circumferential wall of the mixing tank, heating tubes are fixedly mounted inside the plurality of mounting shells, and a temperature sensor is fixedly mounted on the top surface of the tank cover.

[0014] By adopting the above technical solution, the mixing tank can be heated in cold weather, thereby preventing the temperature from affecting the mixing effect of the rubber particles.

[0015] Preferably, a pressure relief cap is fixedly mounted on the top surface of the tank cover, a pressure relief hole is opened on the outer circular wall surface of the pressure relief cap, a spring is movably sleeved inside the pressure relief cap, a pressure plate is movably sleeved inside the pressure relief cap, a connecting column is fixedly mounted on the bottom surface of the pressure plate, a partition plate is fixedly sleeved inside the pressure relief cap, the inner circular wall surface of the partition plate is movably sleeved with the connecting column, and a sealing plug is fixedly mounted on the bottom surface of the connecting column.

[0016] By adopting the above technical solution, when the temperature inside the mixing tank rises, the air pressure inside the mixing tank will increase accordingly. After the high-pressure gas enters the pressure relief cap, it will push the sealing plug to move and cause the pressure plate to squeeze the spring. Then, the high-pressure gas inside the pressure relief cap will be discharged through the pressure relief hole, thereby facilitating the pressure relief of the mixing tank.

[0017] Preferably, the receiving block and the connecting block are detachably mounted via threads.

[0018] By adopting the above technical solution, it is convenient to replace the connecting block when the groove on the surface of the connecting block is worn.

[0019] Preferably, the surfaces of the plurality of return blades and the plurality of stirring blades are coated with a wear-resistant coating.

[0020] By adopting the above technical solution, the service life of the return blade and the stirring blade can be easily increased.

[0021] In summary, the present invention mainly has the following beneficial effects: 1. The two mixing rollers will be driven to move by the fixed frame, and the transmission bevel gear will drive the mixing roller to rotate, and then the mixing roller will flip and mix the rubber particles at the bottom of the mixing tank. At the same time, the movement of the mixing roller will drive the protective shell, slider and cleaning block to move. At this time, the rubber particles accumulated on the inner wall of the bottom of the mixing tank will be pushed to the center of the bottom of the mixing tank along the curved surface of the cleaning block and flipped and mixed by the mixing roller. At this time, under the gear meshing transmission of the first bevel gear and the second bevel gear, the return blade will flip the rubber particles mixed by the mixing roller back to the middle part of the mixing tank, thereby achieving the effect of mixing the rubber particles and facilitating the continuous flipping and mixing of the rubber particles on the inner wall of the bottom of the mixing tank.

[0022] 2. The first transmission belt is driven to rotate by the return shaft, and then the first transmission belt drives the active pulley and the stirring shaft to rotate. At this time, the stirring shaft rotating at the bottom drives the driven pulley on the surface to rotate, and then the other stirring shaft is driven to rotate together under the belt transmission action of the second transmission belt, and then the adjacent stirring shaft can be rotated again through the transmission action of the third transmission belt. In this way, the self-rotation of multiple stirring shafts and stirring blades can be achieved through the belt transmission of the first transmission belt and multiple second transmission belts and the pressure relief hole. Then, when the rubber particles are mixed, the stirring blades that revolve and rotate at the same time can enhance the turning effect of the rubber particles in the opposite direction, thereby improving the uniformity of the rubber particles during mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the positioning groove structure of the present invention; Figure 3 It is a schematic diagram of the installation ring structure of the present invention; Figure 4 It is a schematic structural diagram of the sealing cover of the present invention; Figure 5 It is a schematic diagram of the slider structure of the present invention; Figure 6 It is a schematic diagram of the protective shell structure of the present invention; Figure 7 It is a schematic structural diagram of the transmission box of the present invention; Figure 8 It is a schematic diagram of the active pulley structure of the present invention; Figure 9 It is a schematic diagram of the tank cover structure of the present invention; Figure 10 It is a schematic diagram of the feeding hopper structure of the present invention; Figure 11 It is a schematic structural diagram of the pressure relief cap of the present invention; Figure 12 It is a schematic diagram of the installation shell structure of the present invention.

[0024] Reference numerals: 1, mixing tank; 2, tank cover; 3, discharge valve; 4, mounting shell; 5, positioning groove; 6, limiting groove; 7, rotating shaft; 8, embedded ring; 9, sealing ring; 10, sealing groove; 11, positioning frame; 12, connecting block; 13, receiving block; 14, mounting ring; 15, transmission box; 16, stirring shaft; 17, return shaft; 18, sliding block; 19, cleaning block; 20, sealing cover; 21, toothed disc; 22, transmission bevel gear; 23, snap ring; 24, protective cover; 25, heating tube; 26, protective shell; 27, sealing plug; 28, mixing roller; 29, fixing frame; 30. Connecting frame; 31. Mounting groove; 32. Roller; 33. First bevel gear; 34. Second bevel gear; 35. Connecting sleeve; 36. Return blade; 37. Mixing blade; 38. Transmission groove; 39. Active pulley; 40. Driven pulley; 41. First transmission belt; 42. Second transmission belt; 43. Driving motor; 44. Connecting cone; 45. Feeding hopper; 46. Pressure relief cap; 47. Temperature sensor; 48. Electric motor; 49. Feeding roller; 50. Pressure relief hole; 51. Partition plate; 52. Spring; 53. Pressing plate; 54. Connecting column; 55. Third transmission belt. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9A rubber particle mixing device for producing rubber products comprises: a mixing tank 1, the top surface of the mixing tank 1 is rotatably connected to a tank cover 2, a discharge valve 3 is fixedly installed on the bottom surface of the mixing tank 1, the interior of the mixing tank 1 is rotatably connected to a rotating shaft 7, a positioning frame 11 is fixedly installed inside the mixing tank 1, the positioning frame 11 is rotatably connected to the rotating shaft 7, a plurality of stirring shafts 16 are provided inside the mixing tank 1, and a plurality of stirring blades 37 are fixedly sleeved on the outer circumferential walls of the plurality of stirring shafts 16; a receiving block 13, the receiving block 13 is fixedly installed on the top surface of the rotating shaft 7, a connecting block 12 is provided on the top surface of the receiving block 13, a card slot is provided on the top surface of the tank cover 2 A driving motor 43 is fixedly installed, and a connecting cone 44 is fixedly installed on the bottom surface of the driving shaft of the driving motor 43, and the connecting cone 44 is movably sleeved with the inner wall surface of the card slot; a positioning groove 5 is provided on the inner bottom surface of the mixing tank 1, and a limiting groove 6 is provided on the inner circular wall surface of the mixing tank 1. A toothed disc 21 is fixedly installed on the inner bottom surface of the positioning groove 5, and the top surface of the toothed disc 21 is meshed and connected with two transmission bevel teeth 22. A snap ring 23 is fixedly installed on the inner bottom surface of the mixing tank 1, and a sealing cover 20 is fixedly installed on the top surface of the snap ring 23. The inner circular wall surface of the sealing cover 20 is movably sleeved with the rotating shaft 7, and a protective cover 24 is rotatably connected between the snap ring 23 and the sealing cover 20; two mixing rollers 2 8, two mixing rollers 28 are respectively fixedly mounted on one side of the two transmission bevel gears 22, the mixing roller 28 passes through the protective cover 24, the outer circumferential wall surface of the rotating shaft 7 is fixedly sleeved with a fixing frame 29, the inner circumferential wall surface of the fixing frame 29 is rotatably connected to the mixing roller 28, the internal sliding connection of the limiting groove 6 is connected to two sliders 18, one side of the two sliders 18 is respectively fixedly mounted, a connecting frame 30, a protective shell 26 is fixedly mounted on one side of the connecting frame 30, a cleaning block 19 is fixedly mounted on one side of the connecting frame 30, the cleaning block 19 is slidably connected to the limiting groove 6, the slider 18 is rotatably connected to one end of the mixing roller 28, the top and bottom surfaces of the slider 18 are respectively provided with mounting grooves 31, and the mounting The interior of the groove 31 is rotatably connected to a plurality of rollers 32, the interiors of the two protective shells 26 are respectively provided with first bevel gears 33, and the interiors of the two protective shells 26 are respectively provided with second bevel gears 34, the first bevel gears 33 are meshed and connected with the second bevel gears 34, and the inner circumferential wall surface of the first bevel gear 33 is fixedly sleeved with the mixing roller 28; the mounting ring 14 is fixedly sleeved on the outer circumferential wall surface of the rotating shaft 7, and two connecting sleeves 35 are fixedly installed on the outer circumferential wall surface of the mounting ring 14, and the inner circumferential wall surface of the connecting sleeve 35 is rotatably connected to the return shaft 17, and the outer circumferential wall surface of the return shaft 17 is fixedly sleeved with a plurality of return blades 36, and the return shaft 17 is fixedly sleeved with the inner circumferential wall surface of the second bevel gear 34;Two sets of rotating components, both sets of rotating components are arranged on the outer circumferential wall surface of the rotating shaft 7, and are used to drive multiple stirring shafts 16 and multiple stirring blades 37 to rotate. When in use, the staff adds rubber particles to the interior of the mixing tank 1, and then the staff closes the tank cover 2 on the top of the mixing tank 1. During this process, the connecting cone 44 will be inserted into the interior of the connecting block 12 slot, and then the staff uses the driving motor 43 to drive the rotating shaft 7 and multiple stirring blades 37 to rotate to mix the rubber particles. At the same time, during the mixing process, the staff adds the compounding agent to the interior of the mixing tank 1, and then the rotation of the rotating shaft 7 will drive the fixed frame 29 to rotate. At this time, the rotating fixed frame 29 will drive the two mixing rollers 28 to move. At this time, under the action of the tooth meshing transmission of the transmission bevel gear 22 and the toothed disc 21, the transmission bevel gear 22 will drive the mixing roller 28 to rotate, and then the mixing roller 28 will flip and mix the rubber particles at the bottom of the mixing tank 1. At the same time, the movement of the mixing roller 28 will drive the anti- As the protective shell 26, slider 18, and cleaning block 19 move, the rubber particles accumulated on the inner wall of the bottom of the mixing tank 1 are pushed to the center of the bottom of the mixing tank 1 along the curved surface of the cleaning block 19 and are turned and mixed by the mixing roller 28. The rotation of the mixing roller 28 then drives the first bevel gear 33 to rotate. At this time, under the meshing transmission action of the first bevel gear 33 and the second bevel gear 34, the second bevel gear 34 drives the return shaft 17 and the multiple return blades 36 on its surface to rotate. The rotating return blades 36 then turn the rubber particles mixed by the mixing roller 28 back to the middle part of the mixing tank 1. The rubber particles near the inner wall of the top and middle of the mixing tank 1 will automatically fall to the bottom of the mixing tank 1 under the action of gravity. This repeated operation can continuously turn and mix the rubber particles close to the inner wall of the mixing tank 1, thereby achieving the effect of mixing the rubber particles and facilitating the continuous turning and mixing of the rubber particles at the inner wall of the bottom of the mixing tank 1.

[0028] Example 2

[0029] Based on the above embodiment 1, refer to Figure 3 、 Figure 7 and Figure 8The rotating assembly includes: two transmission boxes 15, the two transmission boxes 15 are fixedly mounted on the outer circumferential wall of the rotating shaft 7, the two return shafts 17 respectively penetrate into the interior of the two transmission boxes 15, the outer circumferential walls of the two return shafts 17 are provided with a transmission groove 38, the outer circumferential walls of several stirring shafts 16 are fixedly sleeved with a driven pulley 40, the outer circumferential walls of several stirring shafts 16 are fixedly sleeved with a driving pulley 39, a first transmission belt 41 is provided between the transmission groove 38 and the driving pulley 39, the transmission groove 38 and the driving pulley 39 are connected by the first transmission belt 41, a second transmission belt 42 is provided between the two driven pulleys 40, the two driven pulleys 40 are connected by the second transmission belt 42, a third transmission belt 55 is provided between the two driving pulleys 39, and the two driving pulleys 39 are driven by the third transmission belt 55 Dynamic connection, when the return shaft 17 rotates, the return shaft 17 will drive the first transmission belt 41 to rotate, and then the first transmission belt 41 will drive the active pulley 39 and the stirring shaft 16 to rotate, at this time the stirring shaft 16 rotating at the bottom will drive the driven pulley 40 on the surface to rotate, and then under the belt transmission action of the second transmission belt 42, another stirring shaft 16 will be driven to rotate together, and then the transmission action of the third transmission belt 55 can make the adjacent stirring shaft 16 rotate again, so that the belt transmission of the first transmission belt 41 and multiple second transmission belts 42 and the pressure relief hole 50 can realize the self-rotation of multiple stirring shafts 16 and stirring blades 37, and then when the rubber particles are mixed, the stirring blades 37 that revolve and rotate at the same time can enhance the effect of flipping the rubber particles in the opposite direction, thereby facilitating the improvement of the uniformity of the mixing of the rubber particles.

[0030] Example 3

[0031] Based on the above embodiment 1 or 2, refer to Figure 2 、 Figure 9 and Figure 10 A feeding hopper 45 is fixedly installed on the top surface of the tank cover 2, and an electric motor 48 is fixedly installed on one side of the feeding hopper 45. A feeding roller 49 is connected to the inside of the feeding hopper 45 for rotation, and a plurality of grooves are provided on the surface of the feeding roller 49. One end of the driving shaft of the electric motor 48 is fixedly installed with the feeding roller 49. The staff can add the compounding agent into the inside of the feeding hopper 45 and drive the electric motor 48. Then, the driving shaft of the electric motor 48 will drive the feeding roller 49 to rotate. Then, since the multiple grooves on the surface of the feeding roller 49 have the same size, the feeding roller 49 rotates to deliver the same amount of compounding agent, so as to facilitate automatic quantitative delivery of the compounding agent. A sealing groove 10 is provided on the top surface of the mixing tank 1, and a sealing ring 9 is fixedly sleeved inside the sealing groove 10. An embedded ring 8 is fixedly installed on the bottom surface of the tank cover 2, and the embedded ring 8 is movably sleeved with the inner circular wall of the sealing groove 10 to improve the sealing between the tank cover 2 and the mixing tank 1.

[0032] Example 4

[0033] Based on the above embodiment 1, 2 or 3, refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 11 and Figure 12 , a plurality of mounting shells 4 are fixedly mounted on the outer circumferential wall of the mixing tank 1, and a heating tube 25 is fixedly mounted inside the plurality of mounting shells 4. A temperature sensor 47 is fixedly mounted on the top surface of the tank cover 2, so as to heat the mixing tank 1 in cold weather, thereby preventing the temperature from affecting the mixing effect of the rubber particles. A pressure relief cap 46 is fixedly mounted on the top surface of the tank cover 2, and a pressure relief hole 50 is provided on the outer circumferential wall of the pressure relief cap 46. A spring 52 is movably sleeved inside the pressure relief cap 46, and a pressure plate 53 is movably sleeved inside the pressure relief cap 46. A connecting column 54 is fixedly mounted on the bottom surface of the pressure plate 53. A partition plate 51 is fixedly sleeved inside the pressure relief cap 46, and the inner circumferential wall of the partition plate 51 is movably sleeved with the connecting column 54. A sealing plug 27 is fixedly installed on the bottom surface of the connecting column 54. When the temperature inside the mixing tank 1 increases, the air pressure inside the mixing tank 1 will increase accordingly. After the high-pressure gas enters the pressure relief cap 46, it will push the sealing plug 27 to move and cause the pressure plate 53 to squeeze the spring 52. Then the high-pressure gas inside the pressure relief cap 46 will be discharged through the pressure relief hole 50, thereby facilitating the pressure relief treatment of the mixing tank 1. The receiving block 13 and the connecting block 12 are detachably mounted through threads, which is convenient for replacing the connecting block 12 when the surface groove is worn. The surfaces of several return blades 36 and several stirring blades 37 are coated with a wear-resistant coating, which is convenient for improving the service life of the return blades 36 and the stirring blades 37.

[0034] Working principle: Please refer to Figures 1-12As shown, when in use, the staff adds rubber particles to the inside of the mixing tank 1, and then the staff closes the tank cover 2 on the top of the mixing tank 1. During this process, the connecting cone 44 will be inserted into the inside of the connecting block 12 slot, and then the staff uses the drive motor 43 to drive the rotating shaft 7 and multiple stirring blades 37 to rotate to mix the rubber particles. At the same time, during the mixing process, the staff adds the compounding agent to the inside of the mixing tank 1, and then the rotation of the rotating shaft 7 will drive the fixed frame 29 to rotate. At this time, the rotating fixed frame 29 will drive the two mixing rollers 28 to move. At this time, under the action of the tooth meshing transmission of the transmission bevel gear 22 and the toothed disc 21, the transmission bevel gear 22 will drive the mixing roller 28 to rotate, and then the mixing roller 28 will flip and mix the rubber particles at the bottom of the mixing tank 1. At the same time, the movement of the mixing roller 28 will drive the protective shell 26, the slider 18 and the cleaning block 19 to move. At this time, the rubber particles accumulated on the mixing tank 1 are stirred and mixed. The rubber particles at the inner wall of the bottom of the mixing tank 1 will be pushed to the center of the bottom of the mixing tank 1 along the curved surface of the cleaning block 19, and will be turned and mixed by the mixing roller 28. The rotation of the mixing roller 28 will drive the first bevel gear 33 to rotate. At this time, under the tooth meshing transmission action of the first bevel gear 33 and the second bevel gear 34, the second bevel gear 34 will drive the return shaft 17 and the multiple return blades 36 on its surface to rotate, and then the rotating return blades 36 will turn the rubber particles mixed by the mixing roller 28 back to the middle part of the mixing tank 1. Then, the rubber particles close to the inner wall at the top and middle of the mixing tank 1 will automatically fall to the bottom of the mixing tank 1 under the action of gravity. Repeated operations can make the rubber particles close to the inner wall of the mixing tank 1 continuously turned and mixed, thereby achieving the effect of mixing the rubber particles and facilitating the continuous turning and mixing of the rubber particles at the inner wall of the bottom of the mixing tank 1.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rubber particle mixing device for rubber product production, characterized in that: include: A mixing tank (1), wherein a tank cover (2) is rotatably connected to the top surface of the mixing tank (1), a discharge valve (3) is fixedly installed on the bottom surface of the mixing tank (1), a rotating shaft (7) is rotatably connected to the inside of the mixing tank (1), a positioning frame (11) is fixedly installed inside the mixing tank (1), the positioning frame (11) is rotatably connected to the rotating shaft (7), a plurality of stirring shafts (16) are arranged inside the mixing tank (1), and a plurality of stirring blades (37) are fixedly sleeved on the outer circular walls of the plurality of stirring shafts (16); A receiving block (13), the receiving block (13) being fixedly mounted on the top surface of the rotating shaft (7), a connecting block (12) being provided on the top surface of the receiving block (13), a slot being provided on the top surface of the connecting block (12), a driving motor (43) being fixedly mounted on the top surface of the tank cover (2), a connecting cone (44) being fixedly mounted on the bottom surface of the driving shaft of the driving motor (43), and the connecting cone (44) being movably sleeved with the inner wall surface of the slot; A positioning groove (5), wherein the positioning groove (5) is provided on the inner bottom surface of the mixing tank (1), and a limiting groove (6) is provided on the inner circumferential wall surface of the mixing tank (1). A toothed disc (21) is fixedly mounted on the inner bottom surface of the positioning groove (5), and two transmission bevel teeth (22) are meshingly connected on the top surface of the toothed disc (21). A clamping ring (23) is fixedly mounted on the inner bottom surface of the mixing tank (1), and a sealing cover (20) is fixedly mounted on the top surface of the clamping ring (23). The inner circumferential wall surface of the sealing cover (20) is movably sleeved with the rotating shaft (7), and a protective cover (24) is rotatably connected between the clamping ring (23) and the sealing cover (20); Two mixing rollers (28), the two mixing rollers (28) are respectively fixedly mounted on one side of the two transmission bevel teeth (22), the mixing rollers (28) penetrate the protective cover (24), the outer circumferential wall surface of the rotating shaft (7) is fixedly sleeved with a fixing frame (29), the inner circumferential wall surface of the fixing frame (29) is rotatably connected to the mixing rollers (28), the interior of the limiting groove (6) is slidably connected to two sliders (18), one side of the two sliders (18) is respectively fixedly mounted, a connecting frame (30), one side of the connecting frame (30) is fixedly mounted with a protective shell (26), and one side of the connecting frame (30) is fixedly mounted with a cleaning block ( 19), the cleaning block (19) is slidably connected to the limiting groove (6), the sliding block (18) is rotatably connected to one end of the mixing roller (28), the top surface and the bottom surface of the sliding block (18) are respectively provided with mounting grooves (31), the interior of the mounting grooves (31) is rotatably connected with a plurality of rollers (32), the interior of the two protective shells (26) is respectively provided with a first bevel gear (33), the interior of the two protective shells (26) is respectively provided with a second bevel gear (34), the first bevel gear (33) is meshedly connected with the second bevel gear (34), and the inner circumferential wall surface of the first bevel gear (33) is fixedly sleeved with the mixing roller (28); A mounting ring (14), the mounting ring (14) being fixedly sleeved on the outer circumferential wall surface of the rotating shaft (7), two connecting sleeves (35) being fixedly mounted on the outer circumferential wall surface of the mounting ring (14), a material return shaft (17) being rotatably connected inside the connecting sleeve (35), a plurality of material return blades (36) being fixedly sleeved on the outer circumferential wall surface of the material return shaft (17), and the material return shaft (17) being fixedly sleeved on the inner circumferential wall surface of the second bevel gear (34); Two sets of rotating components, both sets of rotating components are arranged on the outer circumferential wall surface of the rotating shaft (7), and are used to drive the multiple stirring shafts (16) and the multiple stirring blades (37) to rotate.

2. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: The rotating assembly comprises: two transmission boxes (15), the two transmission boxes (15) are fixedly mounted on the outer circumferential wall surface of the rotating shaft (7), the two return shafts (17) respectively penetrate the interior of the two transmission boxes (15), the outer circumferential walls of the two return shafts (17) are provided with transmission grooves (38), the outer circumferential walls of a plurality of the stirring shafts (16) are fixedly sleeved with driven pulleys (40), the outer circumferential walls of a plurality of the stirring shafts (16) are fixedly sleeved with driving pulleys (39), the transmission grooves (38) A first transmission belt (41) is arranged between the driving pulley (39), the transmission groove (38) and the driving pulley (39) are connected by the first transmission belt (41), a second transmission belt (42) is arranged between the two driven pulleys (40), the two driven pulleys (40) are connected by the second transmission belt (42), a third transmission belt (55) is arranged between the two driving pulleys (39), and the two driving pulleys (39) are connected by the third transmission belt (55).

3. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: A feeding hopper (45) is fixedly mounted on the top surface of the tank cover (2), an electric motor (48) is fixedly mounted on one side of the feeding hopper (45), a feeding roller (49) is rotatably connected inside the feeding hopper (45), a surface of the feeding roller (49) is provided with a plurality of grooves, and one end of a driving shaft of the electric motor (48) is fixedly mounted on the feeding roller (49).

4. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: The top surface of the mixing tank (1) is provided with a sealing groove (10), the interior of the sealing groove (10) is fixedly sleeved with a sealing ring (9), and the bottom surface of the tank cover (2) is fixedly mounted with an insert ring (8), the insert ring (8) being movably sleeved with the inner circular wall surface of the sealing groove (10).

5. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: A plurality of mounting shells (4) are fixedly mounted on the outer circular wall surface of the mixing tank (1), a heating tube (25) is fixedly mounted inside each of the plurality of mounting shells (4), and a temperature sensor (47) is fixedly mounted on the top surface of the tank cover (2).

6. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: A pressure relief cap (46) is fixedly mounted on the top surface of the tank cover (2); a pressure relief hole (50) is formed on the outer circumferential wall surface of the pressure relief cap (46); a spring (52) is movably sleeved inside the pressure relief cap (46); a pressure plate (53) is movably sleeved inside the pressure relief cap (46); a connecting column (54) is fixedly mounted on the bottom surface of the pressure plate (53); a partition plate (51) is fixedly sleeved inside the pressure relief cap (46); an inner circumferential wall surface of the partition plate (51) is movably sleeved with the connecting column (54); and a sealing plug (27) is fixedly mounted on the bottom surface of the connecting column (54).

7. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: The receiving block (13) and the connecting block (12) are detachably mounted via threads.

8. The rubber particle mixing equipment for rubber product production according to claim 1, characterized in that: The surfaces of the plurality of return blades (36) and the plurality of stirring blades (37) are coated with a wear-resistant coating.

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