Mixing equipment for preparing bio-based modified rubber composite material

Abstract

The invention relates to the field of rubber processing equipment, in particular to mixing equipment for preparing bio-based modified rubber composites.The mixing equipment comprises a base fixedly provided with a portal frame and further comprises a mixing mechanism arranged on the portal frame, the mixing mechanism comprises a mixing box fixed to the portal frame, and a first stirring shaft and a second stirring shaft are rotationally connected into the mixing box through fixed shafts; the first stirring shaft is in transmission connection with an extruding and shearing assembly arranged in the mixing box, the upper ends of the first stirring shaft and the second stirring shaft are coaxially and fixedly connected with a first gear and a second gear respectively, the first gear and the second gear are in meshing transmission connection, and the first stirring shaft and the second stirring shaft are hollow; and the water-cooling cooling mechanism is arranged on the portal frame and is communicated with the interiors of the stirring shaft I and the stirring shaft II through pipelines. According to the mixing equipment for preparing the bio-based modified rubber composite material, rubber and various compounding ingredients are efficiently mixed through the mixing mechanism, the rubber in mixing is cooled at the same time, and the situation that the quality of the rubber becomes poor due to the fact that heat generated in the mixing process is too large is avoided.

Description

Technical Field

[0001] The invention relates to the field of rubber processing equipment, in particular to mixing equipment for preparing bio-based modified rubber composite materials. Background Art

[0002] Rubber is an important material widely used in modern industry and life. It has good elasticity and impact resistance and can be used to make various seals, hoses, tires, etc. However, traditional natural rubber has defects such as low strength, low wear resistance, low thermal stability and easy aging, which limits its promotion in some high-end application fields. Therefore, how to improve the performance and application scope of natural rubber is one of the hot spots and difficulties in the current research of rubber materials.

[0003] As a new type of composite material reinforcement, nano-montmorillonite has the characteristics of high specific surface area, excellent mechanical properties and chemical stability, and has been widely used in rubber, plastic, paper, paint and other fields. Adding nano-montmorillonite to natural rubber can effectively improve its mechanical properties, thermal stability and flame retardancy, and improve its wear resistance and service life. As a cheap, renewable and environmentally friendly material, wood cellulose has good affinity with natural rubber and can be used as its main reinforcement phase to improve the comprehensive performance of composite materials.

[0004] Therefore, natural rubber, wood cellulose and nano-montmorillonite were selected as research objects to explore the preparation process and properties of their composite materials; the purpose is to provide a certain theoretical and experimental basis for the development of new high-performance rubber materials.

[0005] Rubber mixing is an important step in manufacturing rubber products. It involves uniformly mixing raw rubber with other compounding agents to make the rubber achieve certain physical, mechanical and process properties. In addition, the temperature needs to be controlled during the mixing process to prevent overheating. In view of this, we propose a mixing equipment for the preparation of bio-based modified rubber composite materials. Summary of the invention

[0006] The purpose of the present invention is to provide a mixing device for preparing a bio-based modified rubber composite material to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solution: A mixing device for preparing a bio-based modified rubber composite material, comprising a base with a gantry fixed thereon, and also comprising: A mixing mechanism is arranged on the gantry, and the mixing mechanism includes a mixing box fixed on the gantry, wherein a first stirring shaft and a second stirring shaft are rotatably connected to a fixed axis in the mixing box, and the first stirring shaft is transmission-connected to an extrusion shearing assembly arranged inside the mixing box, and the upper ends of the first stirring shaft and the second stirring shaft are respectively coaxially fixedly connected to a first gear and a second gear, and the first gear and the second gear are meshingly transmission-connected, the diameter of the first gear is larger than the diameter of the second gear, and the first stirring shaft and the second stirring shaft are hollow inside; A water cooling mechanism is arranged on the gantry, and the water cooling mechanism is connected with the interior of the first stirring shaft and the second stirring shaft through a pipeline.

[0007] Preferably, a feed pipe is fixed and connected to the upper end of the side wall of the mixing box, and a sealing cover is provided at the upper end of the feed pipe. The lower end of the mixing box is detachably fixedly connected to a conical cap, and the lower end of the conical cap is connected to the feed pipe through a reflux pipe, and the connection between the reflux pipe and the feed pipe is detachably provided.

[0008] Preferably, the length of stirring shaft two is two-thirds of that of stirring shaft one, and the multiple stirring rods on stirring shaft one and stirring shaft two are staggered with each other, and the inner wall of the mixing box is fixed with convex rods with staggered stirring rods, and the upper ends of stirring shaft one and stirring shaft two pass through and are rotatably connected to the top wall of the mixing box, gear one is connected to the motor transmission, and the motor is fixed on the gantry.

[0009] Preferably, the stirring rods on the stirring shaft one and the stirring shaft two are hollow inside and connected with the corresponding stirring shaft one and the stirring shaft two, and the stirring shaft one and the stirring shaft two are sleeved on a section of the circumferential wall located on the outside of the mixing box and are rotatably connected with the ring sleeve one and the ring sleeve two, and the ring sleeve one and the ring sleeve two are fixed on the top wall of the mixing box, and the stirring shaft one and the stirring shaft two are provided with water channel one and the water channel two, and the lower end of the water channel one is connected with the hollow part in the corresponding stirring shaft, and the upper end is connected with the corresponding ring sleeve one, and the lower end of the water channel two is connected with the hollow part in the corresponding stirring shaft, and the upper end is connected with the corresponding ring sleeve two.

[0010] Preferably, the shearing assembly includes a shearing disk 1 and a shearing disk 2 arranged at upper and lower positions, a spiral blade is fixed on a wall of the stirring shaft between the stirring rod and the shearing disk 1, the shearing disk 1 is fixed to the inner wall of the mixing box, the shearing disk 2 is rotatably connected to the inner wall of the mixing box, the lower end of the stirring shaft 2 passes through the center of the shearing disk 1 and is fixedly connected to the center of the shearing disk 2, and the lower end of the stirring shaft 2 is rotatably connected to the shearing disk 1.

[0011] Preferably, a plurality of ridges 1 are fixed to the lower surface of the extrusion shearing disk 1, and the plurality of ridges 1 are arranged radially from the center, and the plurality of ridges 1 are arranged at equal intervals along the circumferential direction, and a plurality of through holes 1 are opened in the groove between two adjacent ridges 1; a plurality of ridges 2 are fixed to the upper surface of the extrusion shearing disk 2, and the plurality of ridges 2 are arranged radially from the center, and the plurality of ridges 2 are arranged at equal intervals along the circumferential direction, and a plurality of through holes 2 are opened in the groove between two adjacent ridges 2; and the ridges 1 and ridges 2 can fit and contact each other.

[0012] Preferably, the water cooling mechanism comprises a pump barrel fixed on the gantry, one-way valve 1 and one-way valve 2 are fixed and connected to the end walls of both ends of the pump barrel, and a piston plate is slidably connected in the pump barrel, one side of the piston plate is fixedly connected to the push-pull rod, and one end of the push-pull rod passes through the end wall of the corresponding pump barrel and is fixedly connected to the connecting rod 3.

[0013] Preferably, a support rod and a filter cartridge are fixed on connecting rod three, the support rod is connected to a shaft rod for fixed axis rotation, and the upper end of the shaft rod is fixedly connected to the middle part of the rocker arm, one end of the rocker arm is hinged to a position on the disk surface of gear one away from the center of the circle through connecting rod one, and the other end of the rocker arm is hinged to a position on the disk surface of gear two away from the center of the circle through connecting rod two.

[0014] Preferably, a filter screen is fixed in the filter cartridge, the lower end of the shaft penetrates the upper end wall of the filter cartridge and the filter screen, and a brush strip is fixed at the lower end.

[0015] Preferably, a heat sink is fixed on the gantry, and heat sink ring plates are fixed on the inner and outer walls of the heat sink. The internal fixed axis of the heat sink is rotatably connected to stirring shaft three, and the stirring rod on stirring shaft three is alternately arranged with the heat sink ring plate on the inner wall of the heat sink. One end of stirring shaft three passes through the end wall of the heat sink and the end is coaxially fixedly connected to gear three. A rack is fixed on connecting rod three, and the rack is meshingly connected to gear three.

[0016] Preferably, ring sleeve 2 is connected to the bottom of the filter cartridge through water pipe 2, the upper end of the side wall of the filter cartridge is connected to one end of the side wall of the heat sink through water pipe 3, the other end of the side wall of the heat sink is connected to one-way valve 2 through water pipe 4, one-way valve 1 is connected to ring sleeve 1 through water pipe 1, the conducting direction of one-way valve 1 points to water pipe 1, and the conducting direction of one-way valve 2 points to the inside of the pump cartridge.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the rubber and various compounding agents are mixed by a mixing mechanism arranged on the gantry, and the mixing mechanism simultaneously drives the extrusion and shearing assembly to extrude and shear the rubber and other compounding agents to mix, thereby greatly improving the mixing efficiency and physical and chemical properties of the rubber.

[0018] In the present invention, the mixing mechanism mixes the rubber and drives the water cooling mechanism to cool the rubber at the same time, thereby achieving simultaneous cooling of the rubber being mixed and avoiding deterioration of the rubber quality caused by excessive heat generated during the mixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the general assembly cross-sectional structure of the present invention; Figure 2 for Figure 1 A is an enlarged structural diagram; Figure 3 for Figure 1 The enlarged structural diagram at B in FIG. Figure 4 It is a top view of the second structure of the extrusion shearing disk in the present invention; Figure 5 The cross-sectional structure of the water cooling mechanism in the present invention is shown in top view Figure 1; Figure 6 The cross-sectional structure of the water cooling mechanism in the present invention is shown in top view Figure 2 ; Figure 7 for Figure 6 Schematic diagram of the CC cross-section structure.

[0020] In the figure: 1, base; 2, gantry; 3, mixing box; 4, stirring shaft 1; 5, stirring shaft 2; 6, feed pipe; 7, cover; 8, spiral blade; 9, conical cap; 10, reflux pipe; 11, gear 1; 12, gear 2; 13, water cooling mechanism; 14, ring sleeve 1; 15, ring sleeve 2; 16, convex rod; 17, water channel 1; 18, water channel 2; 19, water pipe 1; 20, push-pull rod; 21, extrusion shear disc 1; 22, small hole 1; 23, convex ridge 1; 24, extrusion shear Plate 2; 25. Small hole 2; 26. Ridge 2; 27. Water pipe 2; 28. Water pipe 3; 29. ​​Water pipe 4; 30. Rocker; 31. Connecting rod 1; 32. Connecting rod 2; 33. Support rod; 34. Filter cartridge; 35. Shaft; 36. Filter screen; 37. Brush strip; 38. Connecting rod 3; 39. Radiator box; 40. Agitator shaft 3; 41. Gear 3; 42. Rack; 43. Radiator ring plate; 44. Pump barrel; 45. One-way valve 1; 46. One-way valve 2; 47. Piston plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 7 The present invention provides a technical solution: a mixing device for preparing a bio-based modified rubber composite material, comprising a base 1 on which a gantry 2 is fixed, and also comprising: A mixing mechanism is arranged on the gantry 2, and the mixing mechanism includes a mixing box 3 fixed on the gantry 2, wherein a stirring shaft 1 4 and a stirring shaft 2 5 are rotatably connected to the mixing box 3, and the stirring shaft 1 4 is transmission-connected to an extrusion shearing assembly arranged inside the mixing box 3, and the upper ends of the stirring shaft 1 4 and the stirring shaft 2 5 are respectively coaxially fixedly connected to a gear 1 11 and a gear 2 12, and the gear 1 11 and the gear 2 12 are meshingly transmission-connected, the diameter of the gear 1 11 is larger than the diameter of the gear 2 12, and the stirring shaft 1 4 and the stirring shaft 2 5 are hollow inside; A water cooling mechanism 13 is arranged on the gantry 2, and the water cooling mechanism 13 is connected with the interior of the stirring shaft 1 4 and the stirring shaft 2 5 through a pipeline.

[0023] In this embodiment, the upper end of the side wall of the mixing box 3 is fixed and connected with a feed pipe 6, and a sealing cover 7 is provided at the upper end of the feed pipe 6. The lower end of the mixing box 3 is detachably fixedly connected to a conical cap 9, and the lower end of the conical cap 9 is connected to the feed pipe 6 through a reflux pipe 10, and the connection between the reflux pipe 10 and the feed pipe 6 is detachably provided.

[0024] In this embodiment, the length of the stirring shaft 2 5 is two-thirds of the stirring shaft 1 4, and the multiple stirring rods on the stirring shaft 1 4 and the stirring shaft 2 5 are staggered with each other. The inner side wall of the mixing box 3 is fixed with a convex rod 16 for staggering the stirring rods. The upper ends of the stirring shaft 1 4 and the stirring shaft 2 5 penetrate and are rotatably connected to the top wall of the mixing box 3. The gear 1 11 is connected to the motor transmission, and the motor is fixed on the gantry. The motor is not drawn in this application. The stirring rods on the stirring shaft 1 4 and the stirring shaft 2 5 are hollow inside and communicate with the corresponding stirring shaft 1 4 and the stirring shaft 2 5. A ring sleeve 14 and a ring sleeve 15 are sleeved on a section of the peripheral wall of the stirring shaft 1 4 and the stirring shaft 2 5 located outside the mixing box 3 and are rotatably connected thereto, and the ring sleeve 14 and the ring sleeve 15 are fixed on the top wall of the mixing box 3, and a water channel 17 and a water channel 2 18 are opened in the stirring shaft 1 4 and the stirring shaft 2 5, and the lower end of the water channel 17 is connected to the hollow part in the corresponding stirring shaft, and the upper end is connected to the corresponding ring sleeve 14, and the lower end of the water channel 2 18 is connected to the hollow part in the corresponding stirring shaft, and the upper end is connected to the corresponding ring sleeve 2 15.

[0025] In this embodiment, the extrusion shearing assembly includes an extrusion shearing disk 1 21 and an extrusion shearing disk 24 arranged at upper and lower positions, a spiral blade 8 is fixed on the peripheral wall of the stirring shaft 4 between the stirring rod and the extrusion shearing disk 1 21, the extrusion shearing disk 1 21 is fixed on the inner wall of the mixing box 3, the extrusion shearing disk 24 is connected to the inner wall of the mixing box 3 by fixed axis rotation, the lower end of the stirring shaft 2 5 passes through the center of the extrusion shearing disk 1 21 and is fixedly connected to the center of the extrusion shearing disk 24, and the lower end of the stirring shaft 2 5 is connected to the extrusion shearing disk 1 21 by fixed axis rotation, and a plurality of convex ridges are fixed on the lower surface of the extrusion shearing disk 1 21. 23, and the plurality of ribs 1 23 are arranged radially from the center, and the plurality of ribs 1 23 are arranged at equal intervals along the circumferential direction, a plurality of through holes 1 22 are opened in the groove between two adjacent ribs 1 23, a plurality of ribs 2 26 are fixed to the upper surface of the extrusion shearing disk 24, and the plurality of ribs 2 26 are arranged radially from the center, and the plurality of ribs 2 26 are arranged at equal intervals along the circumferential direction, a plurality of through holes 25 are opened in the groove between two adjacent ribs 26, and the ribs 1 23 and the ribs 26 can fit and contact each other.

[0026] In this embodiment, the water cooling mechanism 13 includes a pump barrel 44 fixed on the gantry 2, and both end walls of the pump barrel 44 are fixed and connected to a one-way valve 1 45 and a one-way valve 2 46, and a piston plate 47 is slidably connected in the pump barrel 44, one side of the piston plate 47 is fixedly connected to the push-pull rod 20, and one end of the push-pull rod 20 passes through the corresponding end wall of the pump barrel 44 and is fixedly connected to the connecting rod 3 38, and the connecting rod 3 38 is fixed with a support rod 33 and a filter cartridge 34, and a fixed axis rotating on the support rod 33 The shaft rod 35 is dynamically connected, and the upper end of the shaft rod 35 is fixedly connected to the middle part of the swing rod 30. One end of the swing rod 30 is hinged to a position on the disk of the gear 11 far away from the center of the circle through the connecting rod 1 31. The other end of the swing rod 30 is hinged to a position on the disk of the gear 2 12 far away from the center of the circle through the connecting rod 2 32. The structures of the connecting rod 1 31 and the connecting rod 2 32 are exactly the same. A filter screen plate 36 is fixed in the filter cylinder 34. The lower end of the shaft rod 35 passes through the upper end wall of the filter cylinder 34 and the filter screen plate 36. A brush strip 37 is fixed to the lower end, a heat sink 39 is fixed to the gantry 2, heat sink ring plates 43 are fixed to the inner and outer walls of the heat sink 39, the inner fixed axis of the heat sink 39 is connected to the stirring shaft 3 40, the stirring rod on the stirring shaft 3 40 is staggered with the heat sink ring plate 43 on the inner wall of the heat sink 39, one end of the stirring shaft 3 40 passes through the end wall of the heat sink 39 and the end is coaxially fixedly connected to the gear 3 41, a rack 42 is fixed to the connecting rod 3 38, and the rack 42 and the gear The three 41 are meshedly connected, the ring sleeve 15 is connected with the bottom of the filter cartridge 34 through the water pipe 27, the upper end of the side wall of the filter cartridge 34 is connected with one end of the side wall of the heat sink 39 through the water pipe 3 28, the other end of the side wall of the heat sink 39 is connected with the one-way valve 2 46 through the water pipe 4 29, the one-way valve 1 45 is connected with the ring sleeve 14 through the water pipe 19, the conducting direction of the one-way valve 45 points to the water pipe 19, and the conducting direction of the one-way valve 2 46 points to the inside of the pump barrel 44.

[0027] Working principle and advantages of the present invention: When the mixing equipment for preparing the bio-based modified rubber composite material is used, the working process is as follows: like Figure 1 As shown, the motor is started so that the motor drives the gear 11 and the stirring shaft 4 to rotate, thereby the gear 11 drives the stirring shaft 2 5 to rotate in the opposite direction through the gear 2 12, and the rotation speed of the stirring shaft 2 5 is greater than the rotation speed of the stirring shaft 4, the rubber raw material and other compounding agents are put into the mixing box 3 through the feeding pipe 6, and the cover 7 is fixed, and the rubber and various compounding agents are mixed under the stirring action of the stirring shaft 4 and the stirring shaft 2 5, and the rotation directions of the stirring shaft 14 and the stirring shaft 2 5 are opposite, and the rotation speeds are different, and the convex rod 16 on the side wall of the mixing box 3 is used to generate more shear force between the rubbers, thereby helping to improve the physical and chemical properties of the rubber.

[0028] like Figure 3 and Figure 4As shown, the rotation of the stirring shaft 4 drives the spiral blade 8 and the extrusion shear disk 24 to rotate, so that the spiral blade 8 squeezes the rubber downward, so that the rubber passes through the small hole 22 and enters the groove formed between the two adjacent convex ridges 23, and as the extrusion shear disk 24 rotates, when the groove formed between the two adjacent convex ridges 26 is connected with the corresponding groove, the rubber is extruded through the small hole 25, so that the rubber is further interlaced in the two grooves during the extrusion process, thereby improving the mixing efficiency and effect, and the relative rotation of the extrusion shear disk 1 21 and the extrusion shear disk 24 causes the convex ridge 23 and the convex ridge 26 to shear the rubber, further improving the physical and chemical properties of the rubber.

[0029] The rubber squeezed out from the second small hole 26 flows back to the feed pipe 6 through the conical cap 9 and the reflux pipe 10, and then enters the mixing box 3 to be mixed, squeezed and sheared again to form a circular flow, which greatly improves the mixing effect and efficiency of the rubber.

[0030] like Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, while the gear 11 and the gear 2 12 rotate, a push-pull force is applied to the shaft rod 35 through the connecting rod 1 31 and the connecting rod 2 32, so that the shaft rod 35 applies a push-pull force to the connecting rod 3 38 through the support rod 33, so that the connecting rod 3 38 drives the piston plate 47 to reciprocate in the pump barrel 44 through the push-pull rod 20. Since the one-way valve 1 45 and the one-way valve 2 46 are fixed and connected to the end walls of the pump barrel 44 at both ends, the piston plate 47 applies suction force and compression force to the spaces on both sides thereof alternately. When compression force is applied to one of the spaces, the water in the pump barrel 44 is transported to the ring sleeve 14 through the water pipe 19 corresponding to the space, and then enters the internal hollow of the corresponding stirring shaft through the water channel 17, and then enters the interior of each stirring rod, thereby cooling the rubber being mixed and avoiding the generation of Excessive heat causes the quality of rubber to deteriorate. The water after absorbing heat enters the corresponding ring sleeve 2 15 through the water channel 2 18, and then enters the space under the filter screen plate 36 inside the filter cylinder 34 through the water pipe 2 27. After the scale is filtered out by the filter screen plate 36, it enters the heat dissipation box 39 through the water pipe 3 28. The heat is dissipated and cooled by the heat conduction of each heat dissipation ring plate 43 on the heat dissipation box 39. Since another space in the pump barrel 44 generates a suction force, it enters the space through the water pipe 4 29. In this way, when the space is transformed to generate a compression force and the other space generates a suction force at the same time, the cooled water is transported to each stirring shaft again, and after filtering and removing the scale again, it is cooled and returned to the space inside the pump barrel 44 that generates the suction force. This cycle is repeated to achieve simultaneous cooling of the rubber being mixed to avoid excessive temperature.

[0031] As described above, the connecting rod 3 38 reciprocates while driving the rack 42 to move synchronously, so that the rack 42 drives the stirring shaft 3 40 to rotate through the gear 3 41, so that the stirring shaft 3 40 drives the stirring rod to stir the water, thereby increasing the heat dissipation efficiency, so as to conduct the heat inside the rubber more effectively and timely.

[0032] Since the diameter of gear 11 is larger than that of gear 2 12, and the rotation speeds of gear 11 and gear 2 12 are different, a push-pull force is applied to the shaft 35 through connecting rod 1 31 and connecting rod 2 32, and a reciprocating torsional force is also applied to the shaft 35, so that the shaft 35 rotates reciprocatingly, and then the shaft 35 drives the brush strip 37 to clean the bottom of the filter screen plate 36, thereby maintaining the efficient passability of the filter screen plate 36.

[0033] After the mixing is finished, the conical cap 9 and the reflux pipe 10 are removed, and the rubber is discharged from the bottom of the mixing box 3, and then the rubber in the conical cap 9 and the reflux pipe 10 is cleaned out, which is very convenient.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A mixing device for preparing a bio-based modified rubber composite material, comprising a base (1) to which a gantry (2) is fixed, characterized in that: Also includes: A mixing mechanism is arranged on a gantry (2), the mixing mechanism comprising a mixing box (3) fixed on the gantry (2), a stirring shaft (4) and a stirring shaft (5) being rotatably connected to a fixed axis in the mixing box (3), and the stirring shaft (4) is transmission-connected to an extrusion shearing assembly arranged inside the mixing box (3), the upper ends of the stirring shaft (4) and the stirring shaft (5) are respectively coaxially fixedly connected to a gear (11) and a gear (12), and the gear (11) and the gear (12) are meshingly transmission-connected, the diameter of the gear (11) is larger than the diameter of the gear (12), and the stirring shaft (4) and the stirring shaft (5) are hollow inside; A water cooling mechanism (13) is arranged on the gantry (2), wherein the water cooling mechanism (13) is connected to the interior of the first stirring shaft (4) and the second stirring shaft (5) through a pipeline.

2. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 1, characterized in that: A feed pipe (6) is fixed to and connected to the upper end of the side wall of the mixing box (3), and a cover (7) is provided at the upper end of the feed pipe (6). A conical cap (9) is detachably fixedly connected to the lower end of the mixing box (3), and the lower end of the conical cap (9) is connected to the feed pipe (6) via a reflux pipe (10), and the connection between the reflux pipe (10) and the feed pipe (6) is detachably provided.

3. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 1, characterized in that: The length of the second stirring shaft (5) is two thirds of that of the first stirring shaft (4), and the plurality of stirring rods on the first stirring shaft (4) and the second stirring shaft (5) are staggered with each other. A protruding rod (16) for staggering the stirring rods is fixed on the inner side wall of the mixing box (3). The upper ends of the first stirring shaft (4) and the second stirring shaft (5) penetrate through and are rotatably connected to the top wall of the mixing box (3). The first gear (11) is connected to the motor in a transmission manner, and the motor is fixed on the gantry.

4. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 3, characterized in that: The stirring rods on the stirring shaft 1 (4) and the stirring shaft 2 (5) are hollow inside and communicate with the inside of the corresponding stirring shaft 1 (4) and the stirring shaft 2 (5); a ring sleeve 1 (14) and a ring sleeve 2 (15) are sleeved on a section of the peripheral wall of the stirring shaft 1 (4) and the stirring shaft 2 (5) located outside the mixing box (3) and are rotatably connected to the mixing box (3); the ring sleeve 1 (14) and the ring sleeve 2 (15) are fixed on the top wall of the mixing box (3); a water channel 1 (17) and a water channel 2 (18) are opened in the stirring shaft 1 (4) and the stirring shaft 2 (5); the lower end of the water channel 1 (17) is communicated with the hollow part in the corresponding stirring shaft, and the upper end is communicated with the corresponding ring sleeve 1 (14); the lower end of the water channel 2 (18) is communicated with the hollow part in the corresponding stirring shaft, and the upper end is communicated with the corresponding ring sleeve 2 (15).

5. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 1, characterized in that: The extrusion shearing assembly comprises an extrusion shearing disk 1 (21) and an extrusion shearing disk 2 (24) arranged at upper and lower positions; a spiral blade (8) is fixed on the peripheral wall of the stirring shaft 1 (4) between the stirring rod and the extrusion shearing disk 1 (21); the extrusion shearing disk 1 (21) is fixed on the inner wall of the mixing box (3); the extrusion shearing disk 2 (24) is rotatably connected to the inner wall of the mixing box (3); the lower end of the stirring shaft 2 (5) passes through the center of the extrusion shearing disk 1 (21) and is fixedly connected to the center of the extrusion shearing disk 2 (24); and the lower end of the stirring shaft 2 (5) is rotatably connected to the extrusion shearing disk 1 (21) on the fixed axis.

6. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 5, characterized in that: A plurality of convex ribs (23) are fixed on the lower surface of the shearing disc one (21), and the plurality of convex ribs (23) are arranged radially from the center, and the plurality of convex ribs (23) are arranged at equal intervals along the circumferential direction, and a plurality of through small holes (22) are opened in the groove between two adjacent convex ribs (23). A plurality of convex ribs (26) are fixed on the upper surface of the shearing disc two (24), and the plurality of convex ribs (26) are arranged radially from the center, and the plurality of convex ribs (26) are arranged at equal intervals along the circumferential direction, and a plurality of through small holes (25) are opened in the groove between two adjacent convex ribs (26), and the convex ribs (23) and the convex ribs (26) can fit and contact each other.

7. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 4, characterized in that: The water-cooling mechanism (13) comprises a pump barrel (44) fixed on the gantry (2), a one-way valve (45) and a one-way valve (46) being fixed and connected to each other on both end walls of the pump barrel (44), and a piston plate (47) being slidably connected inside the pump barrel (44), one side of the piston plate (47) being fixedly connected to a push-pull rod (20), and one end of the push-pull rod (20) passing through the corresponding end wall of the pump barrel (44) and being fixedly connected to a connecting rod (38).

8. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 7, characterized in that: A support rod (33) and a filter cartridge (34) are fixed on the connecting rod three (38); the support rod (33) is rotatably connected to a shaft rod (35), and the upper end of the shaft rod (35) is fixedly connected to the middle part of the swing rod (30); one end of the swing rod (30) is hinged to a position on the disk surface of the gear one (11) away from the center of the circle through the connecting rod one (31); and the other end of the swing rod (30) is hinged to a position on the disk surface of the gear two (12) away from the center of the circle through the connecting rod two (32); A filter screen plate (36) is fixed inside the filter cylinder (34); the lower end of the shaft rod (35) penetrates the upper end wall of the filter cylinder (34) and the filter screen plate (36), and a brush strip (37) is fixed to the lower end.

9. The mixing equipment for preparing a bio-based modified rubber composite material according to claim 8, characterized in that: A heat sink (39) is fixed on the gantry (2), and heat sink ring plates (43) are fixed on the inner and outer walls of the heat sink (39). The interior of the heat sink (39) is rotatably connected to a stirring shaft (40). The stirring rod on the stirring shaft (40) and the heat sink ring plate (43) on the inner wall of the heat sink (39) are arranged alternately. One end of the stirring shaft (40) passes through the end wall of the heat sink (39) and the end is coaxially fixedly connected to a gear (41). A rack (42) is fixed on the connecting rod (38), and the rack (42) is meshingly connected to the gear (41).

10. The mixing equipment for preparing the bio-based modified rubber composite material according to claim 9, characterized in that: The second ring sleeve (15) is connected to the bottom of the filter cartridge (34) through the second water pipe (27); the upper end of the side wall of the filter cartridge (34) is connected to one end of the side wall of the heat sink (39) through the third water pipe (28); the other end of the side wall of the heat sink (39) is connected to the second check valve (46) through the fourth water pipe (29); the first check valve (45) is connected to the first ring sleeve (14) through the first water pipe (19); the conducting direction of the first check valve (45) points to the first water pipe (19); and the conducting direction of the second check valve (46) points to the interior of the pump cartridge (44).

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