High-torque co-rotating parallel twin-screw extruder

Abstract

The invention relates to a high-torque co-rotating parallel twin-screw extruder, and relates to the field of twin-screw extruders, the high-torque co-rotating parallel twin-screw extruder comprises a rack, a charging barrel is mounted on the rack, a first screw and a second screw are mounted in the charging barrel, and a driving assembly for driving the first screw and the second screw to rotate in the same direction is mounted on the rack; a feed hopper is mounted on the charging barrel, a material mixing device is mounted in the feed hopper and comprises a material mixing motor and a material mixing roller, a support frame is arranged at an opening in the upper end of the feed hopper, the material mixing motor is mounted on the support frame, the material mixing roller is fixedly connected with an output shaft of the material mixing motor, and the material mixing roller is fixedly connected with the output shaft of the material mixing motor. And the mixing roller is arranged along the height direction of the feeding hopper and is provided with stirring blades. The material mixing device has the effects of fully mixing materials and avoiding material adhesion.

Description

Technical Field

[0001] The present application relates to the field of twin-screw extruders, and in particular to a high-torque co-rotating parallel twin-screw extruder. Background Art

[0002] In recent years, with the rapid development of the plastics industry, the demand for plastics processing equipment has increased. Traditional single-screw extruders can no longer meet the production needs of high quality and high efficiency. Twin-screw extruders have been widely used in the field of plastics processing due to their good mixing performance and high production capacity.

[0003] The existing twin-screw extruder barrel is usually equipped with a feed hopper. The staff adds the material into the feed hopper, which then enters the barrel for extrusion, cutting and forming through the twin screws. Since the material is directly added into the feed hopper, some materials cannot be fully mixed due to the structural composition, and the materials stick together and block the feed hopper, thereby affecting the quality of the finished product. Summary of the invention

[0004] In order to fully mix the materials and avoid material adhesion, the present application provides a high-torque co-rotating parallel twin-screw extruder.

[0005] The high torque co-rotating parallel twin-screw extruder provided in this application adopts the following technical solution: A high-torque co-directional parallel twin-screw extruder comprises a frame, a barrel is mounted on the frame, a first screw and a second screw are mounted in the barrel, a driving assembly for driving the first screw and the second screw to rotate in the same direction is mounted on the frame, a feed hopper is mounted on the barrel, a mixing device is mounted in the feed hopper, the mixing device comprises a mixing motor and a mixing roller, a support frame is arranged at the opening at the upper end of the feed hopper, the mixing motor is mounted on the support frame, the mixing roller is fixedly connected to the output shaft of the mixing motor and is arranged along the height direction of the feed hopper, and a stirring blade is arranged on the mixing roller.

[0006] By adopting the above technical solution, the setting of the mixing motor and the mixing roller allows the material to be premixed before entering the barrel, improving the mixing uniformity of the material and avoiding the degradation of product quality due to uneven mixing of the material. The setting of the stirring blade further enhances the mixing effect of the material, ensuring that the material has reached a better mixing state before entering the twin-screw extruder, reducing the risk of material adhesion and clogging the feed hopper, and improving production efficiency and product quality.

[0007] In a specific feasible implementation scheme, the mixing device also includes a mixing baffle, at least two of which are arranged along the height direction of the feed hopper, and the sizes of the mixing baffles correspond to the inner diameters of the feed hopper at different heights, different mixing chambers are formed between adjacent mixing baffles, and the mixing baffles are provided with material passing holes, and the material passing holes on the mixing baffles at different heights are staggered, and the mixing roller is provided with several groups of pushing blocks corresponding to different mixing baffles, and the several groups of pushing blocks are slidably connected to the upper plate surfaces of different mixing baffles.

[0008] By adopting the above technical solution, the setting of the mixing baffles enables multiple mixing chambers to be formed inside the feed hopper. The sizes of the mixing baffles at different heights correspond to the changes in the inner diameter of the feed hopper, ensuring that the materials are fully mixed in each mixing chamber. The staggered setting of the through holes can effectively avoid material adhesion and blockage, improve material fluidity and mixing uniformity. The design of the pusher block further enhances the propulsion force of the material in each mixing chamber, ensuring that the material passes smoothly through the mixing device, and improving the mixing efficiency and quality.

[0009] In a specific possible implementation mode, a plurality of the material through holes are provided, and the plurality of material through holes are evenly opened on the circumferential portion of the mixing partition, and the number of the pushing blocks in each group is arranged corresponding to the number of the material through holes.

[0010] By adopting the above technical solution, the multiple material holes on the mixing partition are evenly distributed, so that the materials can be more evenly distributed in different mixing chambers to avoid local accumulation. At the same time, the number of push blocks in each group corresponds to the number of material holes, ensuring that each material hole has a corresponding push block to push, further improving the material conveying efficiency and mixing effect, effectively preventing material adhesion and blockage, and improving the quality of the final product.

[0011] In a specific possible implementation scheme, the push block is arranged with a side wall inclined corresponding to the rotation side of the output shaft of the mixing motor, and the thickness of the push block gradually decreases from bottom to top.

[0012] By adopting the above technical solution, the side wall of the pusher block is inclined and the thickness gradually decreases from bottom to top, so that when the pusher block rotates with the mixing roller, it can more effectively push the material downward to avoid the accumulation or retention of the material in the mixing chamber. At the same time, this design can also reduce the friction resistance between the pusher block and the mixing baffle, and improve the working efficiency and stability of the mixing device.

[0013] In a specific implementation scheme, the stirring blades are provided in several groups, and the several groups of stirring blades are respectively installed in different mixing chambers.

[0014] By adopting the above technical solution, multiple groups of stirring blades are set and installed in different mixing chambers, which can effectively improve the mixing uniformity of materials in each mixing chamber, reduce material adhesion and clogging, and thus improve the quality of the final product and production efficiency.

[0015] In a specific feasible implementation scheme, an air inlet nozzle is installed on the outer wall of the feed hopper, a ventilation pipeline is opened in the side wall of the feed hopper, and a plurality of air outlet holes are opened on the inner walls of different mixing chambers in the feed hopper. The plurality of air outlet holes are evenly opened on the circumferential portion of the inner wall of the feed hopper, and the air outlet holes are connected to the ventilation holes.

[0016] By adopting the above technical scheme, the mixing motor and mixing roller in the mixing device can effectively stir the materials to ensure that the materials are fully mixed before entering the barrel. The design of the mixing baffle allows the materials to be gradually mixed in different mixing chambers, further improving the mixing effect. The inclined design and thickness change of the push block help push the materials downward to prevent material accumulation. The multiple groups of stirring blades further enhance the mixing effect. The introduction of the air inlet nozzle and the ventilation pipeline, combined with the design of the air outlet, can evenly inject gas into the mixing chamber to help loosen the materials, reduce adhesion, and improve the fluidity of the materials, thereby avoiding clogging of the feed hopper and improving the quality of the finished product. The conical design of the guide plate is conducive to guiding the materials into the next mixing chamber smoothly, ensuring that the materials are evenly distributed. At the same time, hot air can be blown into the feed hopper through devices such as hot air blowers, thereby further ensuring the dryness of the materials.

[0017] In a specific possible implementation scheme, it also includes a material guide plate, which is installed in the air outlet, and the material guide plate is configured as a conical plate, and the end of the material guide plate with a smaller diameter is installed toward the inside of the feed hopper.

[0018] By adopting the above technical solution, the conical design of the guide plate can effectively guide the gas flow, so that the gas is more evenly distributed in different mixing chambers inside the feed hopper, thereby improving the mixing effect of the materials. The guide plate is installed with the smaller diameter end facing the inside of the feed hopper, which can prevent the material from accumulating at the outlet, reduce the risk of blockage, further ensure the smooth flow of materials, and improve the stability and reliability of the entire system.

[0019] In a specific feasible implementation scheme, a snap-in groove is provided at the upper end of the feed hopper, the end of the support frame facing away from the mixing motor is snap-into the snap-in groove, a limit block is installed on the inner side wall of the feed hopper, and a plug-in groove is provided on the mixing baffle, and the limit block can be plugged into the plug-in groove.

[0020] By adopting the above technical solution, the support frame of the mixing device can be easily clipped into the clip groove of the feed hopper to ensure the stable installation of the mixing device. At the same time, the design of the limit block and the plug-in groove enables the mixing baffle to be accurately positioned in the feed hopper to avoid uneven mixing or material blockage caused by position offset. The setting of the locking groove further enhances the stability of the mixing baffle, prevents loosening during the mixing process, ensures the continuity and efficiency of the mixing process, and facilitates the removal of the mixing device from the feed hopper, thereby facilitating the maintenance of the mixing device.

[0021] In a specific possible implementation scheme, a plurality of the limit blocks are provided, and the limit blocks are dispersedly installed on the circumferential portion of the inner wall of the feed hopper, and a plurality of plug-in grooves are provided on the mixing baffle corresponding to the limit blocks.

[0022] By adopting the above technical scheme, multiple limit blocks are dispersedly installed on the circumference of the inner wall of the feed hopper, and a number of plug-in grooves are correspondingly opened on the mixing baffle, which effectively improves the installation stability and reliability of the mixing baffle, avoids the loosening or falling off of the mixing baffle due to the impact of materials during the mixing process, ensures the continuity and stability of the mixing process, and thus improves the quality of the final product and production efficiency.

[0023] In a specific possible implementation scheme, the drive assembly includes two high-torque motors, the high-torque motors are mounted on the frame, a reduction gearbox is mounted on the frame, the output shaft of the high-torque motor is connected to the input end of the reduction gearbox, the first screw and the second screw are connected to the output end of the reduction gearbox, and the first screw and the second screw are set to have the same rotation direction.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The setting of the mixing motor and mixing roller allows the material to be premixed before entering the barrel, improving the mixing uniformity of the material and avoiding the degradation of product quality due to uneven mixing of the material. The setting of the stirring blade further enhances the mixing effect of the material, ensuring that the material has reached a better mixing state before entering the twin-screw extruder, reducing the risk of material adhesion and clogging the feed hopper, and improving production efficiency and product quality; 2. The mixing motor and mixing roller in the mixing device can effectively stir the materials to ensure that the materials are fully mixed before entering the barrel. The design of the mixing baffle allows the materials to be gradually mixed in different mixing chambers, further improving the mixing effect. The inclined design and thickness change of the push block help push the materials downward and prevent material accumulation. The multiple groups of stirring blades further enhance the mixing effect. The introduction of the air inlet nozzle and the ventilation pipe, combined with the design of the air outlet, can evenly inject gas into the mixing chamber to help loosen the materials, reduce adhesion, and improve material fluidity, thereby avoiding blockage in the feed hopper and improving the quality of the finished product. The conical design of the guide plate is conducive to guiding the material into the next mixing chamber smoothly, ensuring that the material is evenly distributed. At the same time, hot air can be blown into the feed hopper through devices such as hot air blowers, thereby further ensuring the dryness of the material; 3. The support frame of the mixing device can be easily snapped into the snap-in slot of the feed hopper to ensure the stable installation of the mixing device. At the same time, the design of the limit block and the plug-in slot enables the mixing baffle to be accurately positioned in the feed hopper to avoid uneven mixing or material blockage caused by position offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram that reflects the connection relationship between the feed hopper and the mixing device.

[0027] Figure 3 It is a cross-sectional view showing the connection between the feed hopper and the mixing device.

[0028] Figure 4 It is a schematic diagram of the structure of the feed hopper.

[0029] Figure 5 It is a schematic diagram of the structure of the mixing device.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Barrel; 3. First screw; 4. Second screw; 5. Driving member; 6. Reducer; 7. Feed hopper; 71. Air inlet nozzle; 72. Ventilation pipe; 73. Air outlet hole; 74. Snap-in groove; 75. Limit block; 8. Mixing device; 81. Mixing motor; 82. Mixing roller; 83. Mixing partition; 831. Feed hole; 832. Plug-in groove; 84. Stirring blade; 85. Pushing block; 9. Support frame; 91. Support rod; 92. Support plate; 10. Guide plate. DETAILED DESCRIPTION

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" 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 direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] The embodiment of the present application discloses a high torque co-rotating parallel twin-screw extruder.

[0033] like Figure 1 As shown, the high-torque co-directional parallel twin-screw extruder includes a frame 1, a barrel 2, a first screw 3, a second screw 4, a driving member 5 and a reduction gearbox 6. The barrel 2 is mounted on the frame 1. The driving motor includes two high-torque motors. The torque range of the high-torque motor used in the daily production of medium-sized twin-screw extruders is usually between 500 N·m and 2000 N·m, and the torque range of the high-torque motor used in the daily production of large twin-screw extruders is usually between 2000 N·m and 10000 N·m. The two high-torque motors are mounted side by side on the frame 1, and the reduction gearbox 6 is mounted between the barrel 2 and the high-torque motor. The output shaft of the high-torque motor is connected to the input end of the reduction gearbox 6, and one end of the first screw 3 and the second screw 4 is connected to the output end of the reduction gearbox 6, thereby realizing the same-direction driving of the first screw 3 and the second screw 4. A feed hopper 7 is installed on the barrel 2, and a mixing device 8 is installed in the feed hopper 7.

[0034] like Figure 2-Figure 4 As shown, the mixing device 8 includes a mixing motor 81, a mixing roller 82 and a mixing baffle 83. The mixing motor 81 can be an AC motor or a DC motor. Both motors can be used to drive the mixing roller 82 to rotate to achieve material mixing. The mixing roller 82 can be made of stainless steel or aluminum alloy. These two materials have good corrosion resistance and strength and are suitable for high temperature and high pressure working environments. The length of the mixing roller 82 can be adjusted according to actual needs. For example, for a longer feed hopper 7, a longer mixing roller 82 can be selected to ensure that the materials in the entire feed hopper 7 can be fully mixed.

[0035] In the embodiment of the present application, it also includes a support frame 9, which includes a plurality of support rods 91 and a support plate 92. The plurality of support rods 91 are installed on the circumferential part of the support plate 92. A plurality of clamping grooves 74 are opened on the circumferential part of the upper end of the feed hopper 7. The end of the support plate 92 away from the support plate 92 can be clamped in the clamping groove 74 and can slide in the clamping groove 74. The drive motor is installed on the support plate 92, and the output shaft of the drive motor extends through the side wall of the support plate 92 to the feed hopper 7. The mixing roller 82 is fixedly connected to the output shaft of the drive motor. Three mixing baffles 83 are provided, and the mixing baffles 83 are installed on the mixing roller 82. The three mixing baffles 83 are installed in sequence along the length direction of the mixing roller 82, and are installed in sequence at different heights of the feed hopper 7. The sizes of the three mixing baffles 83 correspond to the inner diameters of the feed hopper 7 at different heights, and two mixing chambers are formed between adjacent mixing baffles 83.

[0036] A plurality of limit blocks 75 are installed on the inner wall of the feed hopper 7 corresponding to the mixing baffles 83 at different heights. Each group of limit blocks 75 is provided with a plurality of limit blocks, and the limit blocks 75 are evenly installed on the circumferential portion of the inner wall of the feed hopper 7. An insertion groove 832 is provided on the mixing baffle 83 corresponding to the limit block 75. The limit block 75 can be inserted into the insertion groove 832, so that the limit block 75 can limit the mixing baffle 83 to avoid displacement of the mixing baffle 83 during use.

[0037] Three groups of stirring blades 84 are installed on the mixing roller 82. The three groups of stirring blades 84 are located on the upper rooms of the three groups of mixing partitions 83. Each group of stirring blades 84 is provided with a plurality of stirring blades 84. The plurality of stirring blades 84 are dispersedly installed on the circumferential part of the mixing roller 82. The stirring blades 84 can adopt different shapes and sizes, such as spiral, blade or rake. The stirring blades 84 of these shapes can effectively push the material to move along the direction of the mixing rod to avoid the accumulation of the material in the feed hopper 7. The thickness of the stirring blade 84 can be gradually reduced from bottom to top, so that the resistance of the stirring blade 84 during rotation can be reduced and the stirring efficiency can be improved. The surface of the stirring blade 84 can be coated with a layer of anti-stick coating, such as Teflon coating, to prevent the material from adhering to its surface. The number and position of the stirring blades 84 can be adjusted according to actual needs. For example, in the case of poor material fluidity, the number of stirring blades 84 can be appropriately increased to enhance the mixing effect of the material. The stirring blades 84 can be installed in different mixing chambers respectively, so that the materials in each mixing chamber can be fully mixed. The installation position of the stirring blade 84 can be adjusted according to the shape and size of the mixing chamber to ensure that it fits more closely with the mixing rod.

[0038] The mixing baffle 83 is provided with a material passage hole 831, and the material passage holes 831 on the mixing baffles 83 at different heights are arranged in a staggered manner. The mixing rod is equipped with a plurality of groups of push blocks 85 corresponding to different mixing baffles 83, and the plurality of groups of push blocks 85 are slidably connected to the upper plate surface of different mixing baffles 83. There can be a plurality of material passage holes 831, and the plurality of material passage holes 831 are evenly distributed on the circumferential part of the mixing baffle 83, so that the material can be evenly distributed between different mixing chambers. The diameter of the material passage hole 831 can be adjusted according to the particle size of the material to prevent the material from being blocked. The material passage holes 831 can be arranged in a staggered manner at different heights of the mixing baffle 83, so that a complex material flow path can be formed, further improving the mixing effect of the material. The push blocks 85 can be made of wear-resistant materials, such as high molecular polyethylene or nylon, which have a low friction coefficient and high wear resistance, and can be used for a long time without being easily damaged. The thickness of the pusher block 85 can be gradually reduced from bottom to top, which can reduce the resistance of the pusher block 85 during movement and improve the pushing efficiency. The pusher block 85 is inclined to the side wall of the mixing motor 81 output shaft, so that the inclined surface of the pusher block 85 can be used to guide the material to move upward and avoid the material from piling up on the mixing partition 83.

[0039] An air inlet nozzle 71 is installed on the outer wall of the feed hopper 7, a ventilation line 72 is provided in the side wall of the feed hopper 7, and a plurality of air outlet holes 73 are provided on the inner walls of different mixing chambers in the feed hopper 7. The plurality of air outlet holes 73 are evenly provided on the circumferential part of the inner wall of the feed hopper 7, and the air outlet holes 73 are connected to the ventilation holes. The air inlet nozzle 71 can be in the form of a quick connector, which can conveniently connect the gas source and ensure the stability of the gas supply. The air inlet nozzle 71 can be installed at any position of the feed hopper 7, such as the top or the side, so that the position of the air inlet can be flexibly selected. The caliber of the air inlet nozzle 71 can be adjusted according to actual needs to ensure the stability of the gas flow rate. The ventilation line 72 can be made of stainless steel pipes or copper pipes. These materials have good corrosion resistance and high strength, and are suitable for high temperature and high pressure working environments. The ventilation line 72 can be embedded in the side wall of the feed hopper 7 to ensure that it does not affect the normal use of the feed hopper 7. A valve may be provided on the ventilation line 72 to control the flow of gas, and a plurality of gas outlet holes 73 may be provided, and the plurality of gas outlet holes 73 are evenly distributed on the circumferential part of the inner wall of the feed hopper 7, so that the gas can be evenly distributed in different mixing chambers. The diameter of the gas outlet hole 73 can be adjusted according to actual needs to ensure the stability of the gas flow rate. The gas outlet hole 73 can be set as a tapered hole, and the small end of the tapered hole faces the inner side of the feed hopper 7, so that the resistance when the gas flows out can be reduced and the diffusion effect of the gas can be improved. A guide plate 10 may also be installed on the inner wall of the feed hopper 7, and the guide plate 10 is set as a tapered plate, and the end of the guide plate 10 with a smaller diameter is installed toward the inner side of the feed hopper 7, so that the material can be guided to flow better in the feed hopper 7 and avoid the accumulation of the material in the feed hopper 7.

[0040] The implementation principle of a high-torque co-directional parallel twin-screw extruder in the embodiment of the present application is as follows: by installing a mixing device 8 in the feed hopper 7, the problem of uneven mixing and clogging of materials during the feeding process can be effectively solved. The mixing motor 81 drives the mixing rod to rotate, so that the material is constantly turned in the feed hopper 7, which promotes the uniform mixing of the material. The design of the stirring blade 84 can effectively push the material to move along the direction of the mixing rod to avoid the accumulation of materials in the feed hopper 7. The use of the mixing device 8 not only improves the mixing effect of the material, but also reduces the clogging of the material, thereby improving production efficiency and product quality.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high torque co-rotating parallel twin-screw extruder, comprising a frame (1), a barrel (2) mounted on the frame (1), a first screw (3) and a second screw (4) mounted in the barrel (2), a driving assembly for driving the first screw (3) and the second screw (4) to rotate in the same direction mounted on the frame (1), a feed hopper (7) mounted on the barrel (2), characterized in that: A mixing device (8) is installed in the feed hopper (7), and the mixing device (8) comprises a mixing motor (81) and a mixing roller (82). A support frame (9) is provided at the upper opening of the feed hopper (7), and the mixing motor (81) is installed on the support frame (9). The mixing roller (82) is fixedly connected to the output shaft of the mixing motor (81) and is arranged along the height direction of the feed hopper (7). A stirring blade (84) is provided on the mixing roller (82).

2. The high torque co-rotating parallel twin-screw extruder according to claim 1, characterized in that: The mixing device (8) further comprises a mixing baffle (83), at least two of which are provided, the mixing baffles (83) being arranged along the height direction of the feed hopper (7), and the size of the mixing baffles (83) corresponding to the inner diameter of different height positions of the feed hopper (7), and different mixing chambers are formed between adjacent mixing baffles (83), the mixing baffles (83) are provided with material passage holes (831), and the material passage holes (831) on the mixing baffles (83) at different height positions are arranged in a staggered manner, and the mixing roller (82) is provided with a plurality of groups of pushing blocks (85) corresponding to different mixing baffles (83), and the plurality of groups of pushing blocks (85) are slidably connected to the upper plate surfaces of different mixing baffles (83).

3. The high torque co-rotating parallel twin-screw extruder according to claim 2, characterized in that: A plurality of the material passage holes (831) are provided, and the plurality of material passage holes (831) are evenly opened on the circumferential portion of the mixing partition (83), and the number of each group of pushing blocks (85) corresponds to the number of the material passage holes (831).

4. The high torque co-rotating parallel twin-screw extruder according to claim 3, characterized in that: The pusher block (85) is arranged obliquely on a side wall corresponding to the rotation side of the output shaft of the mixing motor (81), and the thickness of the pusher block (85) gradually decreases from bottom to top.

5. The high torque co-rotating parallel twin-screw extruder according to claim 2, characterized in that: The stirring blades (84) are provided in a plurality of groups, and the plurality of groups of stirring blades (84) are respectively installed in different mixing chambers.

6. The high torque co-rotating parallel twin-screw extruder according to claim 5, characterized in that: An air inlet nozzle (71) is installed on the outer wall of the feed hopper (7), a ventilation pipeline (72) is opened in the side wall of the feed hopper (7), and a plurality of air outlet holes (73) are opened on the inner walls of different mixing chambers in the feed hopper (7). The plurality of air outlet holes (73) are evenly opened on the circumferential part of the inner wall of the feed hopper (7), and the air outlet holes (73) are connected to the ventilation holes.

7. The high torque co-rotating parallel twin-screw extruder according to claim 6, characterized in that: It also includes a material guide plate (10), which is installed in the air outlet (73). The material guide plate (10) is configured as a conical plate, and the end of the material guide plate (10) with a smaller diameter is installed toward the inside of the feed hopper (7).

8. The high torque co-rotating parallel twin-screw extruder according to claim 2, characterized in that: The upper end of the feed hopper (7) is provided with a clamping groove (74), and the end of the support frame (9) facing away from the mixing motor (81) is clamped in the clamping groove (74). A limit block (75) is installed on the inner side wall of the feed hopper (7), and a plug-in groove (832) is provided on the mixing baffle, and the limit block (75) can be plugged into the plug-in groove (832).

9. The high torque co-rotating parallel twin-screw extruder according to claim 8, characterized in that: A plurality of the limit blocks (75) are provided, and the limit blocks (75) are dispersedly installed on the circumferential portion of the inner side wall of the feed hopper (7), and a plurality of insertion grooves (832) are provided on the mixing baffle plate corresponding to the limit blocks (75).

10. The high torque co-rotating parallel twin-screw extruder according to claim 1, characterized in that: The driving assembly comprises two high-torque motors, the high-torque motors are mounted on the frame (1), a reduction box (6) is mounted on the frame (1), the output shaft of the high-torque motor is connected to the input end of the reduction box (6), the first screw (3) and the second screw (4) are connected to the output end of the reduction box (6), and the first screw (3) and the second screw (4) are arranged to rotate in the same direction.

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