A waste spinning double-shaft shredder with multi-stage screening function

Abstract

The utility model relates to waste spinning tear apart technical field, and specifically disclose a kind of waste spinning double-shaft shredder with multistage screening function, center shaft drives crushing assembly and friction mechanism to work, crushing assembly adopts double-shaft crushing design, to increase component processing effect, improve the crushing effect of material, friction mechanism is rubbed to the inner wall of pulverizing barrel, to reduce material adhesion, reduce crushing dead angle, through component rotation promotes material to move towards crushing assembly, to reach the effect of secondary crushing, to reach the effect of uniform crushing, reduce material volume difference, through pneumatic assembly to the inside of pulverizing barrel air supply, improve material chip removal effect, make pneumatic assembly and crushing assembly adapt, wind power promotes material to float and crushing assembly contact, improve the crushing efficiency of material, through screening component to material and screen different volume size material, meet subsequent processing needs.

Description

Technical Field

[0001] This utility model relates to the field of waste textile shredding technology, specifically a waste textile biaxial shredder with multi-stage screening function. Background Technology

[0002] The twin-shaft shredder primarily utilizes a motor to drive a reducer with a large speed ratio, which in turn drives two parallel cutter shafts rotating in opposite directions. The blades on the cutter shafts are arranged in a staggered pattern, shearing and tearing the waste textiles during their relative rotation, breaking the material into smaller pieces. The shredded material passes through a multi-stage screening device below the cutter shafts, where screens of different aperture sizes classify and screen the material. Small pieces that meet the requirements of the corresponding screen aperture fall through the screen gaps into the collection device below, while materials that do not meet the requirements are blocked by the screens and remain in the cutter shaft area, where they are further sheared and torn by the blades until the particle size meets the requirements before being discharged.

[0003] Current twin-shaft shredders tend to accumulate material particles inside during operation, which affects the subsequent shredding effect. Therefore, a new design has been developed to address this issue. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides the following technical solution: a waste textile dual-shaft shredder with multi-stage screening function, comprising a crushing barrel, a feed pipe fixedly connected to one side of the crushing barrel, and a screening component fixedly connected to the side of the crushing barrel away from the feed pipe. Material moves towards the screening component, which discharges debris and screens materials of different sizes, facilitating subsequent processing and meeting subsequent processing requirements. A motor is fixedly connected to one side of the crushing barrel, controlling the rotation of a central shaft, which drives the crushing components and friction mechanism. The inner wall of the crushing barrel is rotatably connected to the central shaft, and crushing components are fixedly connected to both sides of the central shaft. The crushing components adopt a dual-shaft crushing design to increase the processing efficiency of the components. To improve the crushing effect of materials, one side of the outer side of the central shaft is fixedly connected to the output end of the motor. A friction mechanism is fixedly connected to the middle of the outer side of the central shaft. The friction mechanism rubs against the inner wall of the crushing barrel to reduce material adhesion and reduce crushing dead angles. The rotation of the components causes the material to move towards the crushing assembly, thereby achieving secondary crushing and uniform crushing, reducing material volume differences. Legs are fixedly connected to both sides of the outer side of the crushing barrel. A pneumatic assembly is fixedly connected to the outer side of the crushing barrel near the feed pipe. The pneumatic assembly blows air into the crushing barrel, which on the one hand cleans the material inside the equipment, reduces material adhesion, and improves the material chip removal effect. On the other hand, the air force drives the material to move and make the material float and contact the crushing assembly, improving the crushing efficiency of the material.

[0005] The crushing assembly includes a crushing frame, with a support shaft fixedly connected between opposite faces of the crushing frame. The support shaft controls the crushing blocks to contact the material, thereby actively gripping the material, preventing waste textiles from tangling, improving the gripping effect on the material, and facilitating subsequent operations. Through the dual-shaft structure design, it plays a role in improving crushing efficiency and particle size uniformity. The outer side of the support shaft is fixedly connected to the crushing blocks.

[0006] Preferably, the friction mechanism includes a connecting column, a cylindrical shell fixedly connected to the outer side of the connecting column, and a spring strip fixedly connected to the inner side of the cylindrical shell. A support rod presses against the spring strip on the inner wall of the cylindrical shell, thereby playing a role in shock absorption and buffering, reducing collisions between components, and improving the stability of the components. A support rod is fixedly connected to one side of the outer side of the spring strip. The support rod controls the friction plate to rub against the inner wall of the crushing barrel, thereby improving crushing efficiency and particle size uniformity, avoiding material accumulation, accelerating discharge, refining crushed particle size, reducing large piece residues, thereby reducing material adhesion, reducing crushing dead zones, and the rotation of the components causing the material to move towards the crushing barrel. The components move to achieve secondary crushing, thereby achieving uniform crushing and reducing material volume differences. The outer side of the support rod is slidably connected to the inner side of the cylindrical shell. A friction plate is fixedly connected to the outer side of the support rod away from the spring strip, and a silicone pad is fixedly connected to the outer side of the friction plate away from the support rod. This increases the wear resistance of the components, protects the components, reduces wear between components, and extends the service life of the components. The outer side of the silicone pad has a strip-shaped groove to increase the surface texture of the components, improve the cleaning effect, and increase the deformation effect of the components, further improving the buffering effect.

[0007] Preferably, the screening assembly includes a screening housing, an outer housing fixedly connected to the outer side of the screening housing, a handle provided on the inner side of the outer housing, and a semi-circular frame controlled by the handle placed inside the outer housing for easy disassembly and installation. A semi-circular frame is fixedly connected to one side of the handle, and the semi-circular frame inserts into the screening plate for easy fixing and disassembly. The screening plate is inserted into the inner side of the semi-circular frame, and larger particles flow from the screening plate to the conical plate side to achieve material discharge. A conical plate is fixedly connected to the bottom of the screening housing, guiding the material downwards. A first air vent is fixedly connected to the outer side of the conical plate. The machine uses airflow to flush the screening plate from the funnel plate, thus cleaning the components and preventing blockages after prolonged operation. This prevents the components from falling too fast and affects the discharge efficiency. The funnel plate is fixedly connected to the inner wall of the conical plate near the first blower, guiding the airflow and concentrating the airflow. A collection component is fixedly connected to the outer side of the screening shell away from the outer shell. The collection component generates suction to absorb and discharge finer particles, thus screening the materials and distinguishing between different particle sizes to meet subsequent operational needs.

[0008] Preferably, the collection assembly includes a collection shell, with a partition plate fixedly connected to the inner wall of the collection shell near the screening shell to intercept larger particles and prevent material mixing. A second fan is fixedly connected to the outer side of the collection shell away from the screening shell. The second fan generates airflow to draw finer materials from the partition plate side into the collection shell, thereby achieving the function of sorting materials. A chip discharge pipe is fixedly connected to the bottom of the collection shell, and materials are discharged outward from the chip discharge pipe to facilitate subsequent collection or processing.

[0009] Preferably, the pneumatic assembly includes a pneumatic housing, which is adapted to the crushing assembly. The air force causes the material to drift and contact the crushing assembly, improving the crushing efficiency. A third fan is fixedly connected to the outside of the pneumatic housing on the side away from the crushing barrel. The air force sends air into the crushing barrel to flush the inner wall of the equipment, thereby reducing material retention and cleaning the inside of the equipment, reducing debris adhesion, and improving the cleaning effect. A ventilation slot is provided inside the pneumatic housing on the side near the third fan. A rotating mechanism is fixedly connected to the inner wall of the ventilation slot. A grid plate is fixedly connected to the inner wall of the ventilation slot on the side near the crushing barrel to block impurities, prevent impurities from entering the component, avoid affecting the rotation of the fan, and prevent affecting the operation effect.

[0010] Preferably, the rotating mechanism includes a fixed frame, a connecting shaft rotatably connected to the inner side of the fixed frame, a connecting frame fixedly connected to the outer side of the connecting shaft, a blade fixedly connected to the outer side of the connecting frame, and a rotating bracket fixedly connected to the outer side of the connecting frame away from the blade. The rotating bracket controls the soft rubber block to rub against the grid plate, thereby cleaning impurities on the surface of the components, reducing impurity accumulation, preventing blockage of the holes, and avoiding affecting wind flow. The soft rubber block is fixedly connected to the outer side of the rotating bracket to act as a shock absorber and buffer, reducing rigid collisions between components, thereby reducing wear between components and extending the service life of the components. The outer side of the soft rubber block away from the rotating bracket has a cut surface to increase the heat dissipation effect of the components, prevent the components from overheating due to prolonged friction, and prevent affecting the friction performance of the components.

[0011] Beneficial effects

[0012] This utility model provides a waste textile bishaft shredder with multi-stage screening function. It has the following beneficial effects:

[0013] I. This waste textile twin-shaft shredder with multi-stage screening function uses a friction mechanism design to improve crushing efficiency and particle size uniformity, avoid material accumulation, accelerate discharge, refine crushed particle size, reduce large piece residue, thereby reducing material adhesion and crushing dead zones. The rotation of the components causes the material to move towards the crushing components, thus achieving secondary crushing and uniform crushing, reducing material volume differences. The support rod squeezes the spring strip on the inner wall of the cylindrical shell, thereby playing a shock absorption and buffering role, reducing collisions between components and improving component stability.

[0014] II. This waste textile twin-shaft shredder with multi-stage screening function uses a screening component design. The collection component generates suction to absorb and discharge finer particles, thereby achieving the function of screening materials and distinguishing particle sizes to meet different subsequent operation needs. The air force washes the screening plate to one side through the funnel plate, thereby achieving the function of air force washing the components and cleaning the component holes, preventing the holes from becoming blocked after long-term operation, preventing the components from affecting the descent speed, and preventing the output effect from being affected.

[0015] Third, this waste textile twin-shaft shredder with multi-stage screening function uses a pneumatic component design to flush the inner wall of the equipment, thereby reducing material retention and cleaning the inside of the equipment. This reduces debris adhesion and improves the cleaning effect. The pneumatic drive moves the material, and the air force causes the material to float and contact the crushing components, improving the crushing efficiency of the material. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the waste textile bishaft shredder of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the waste textile biaxial shredder of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the friction mechanism of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the screening component of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the collection component of this utility model;

[0021] Figure 6 This is a schematic cross-sectional view of the wind turbine component of this utility model;

[0022] Figure 7 This is a schematic diagram of the rotating mechanism of this utility model.

[0023] In the diagram: 1. Crushing barrel; 2. Feed pipe; 3. Legs; 4. Motor; 5. Central shaft; 6. Crushing assembly; 7. Friction mechanism; 8. Screening assembly; 9. Pneumatic assembly; 61. Crushing frame; 62. Support shaft; 63. Crushed pieces; 71. Connecting column; 72. Cylindrical shell; 73. Spring strip; 74. Support rod; 75. Friction plate; 76. Silicone pad; 77. Strip groove; 81. Screening shell; 82. Semi-arc frame; 83. Screening plate; 84. Conical plate; 85. 86. First fan; 87. Outer casing; 88. Funnel plate; 89. Collection assembly; 80. Handle; 81. Collection casing; 82. Divider plate; 83. Second fan; 84. Chip removal pipe; 91. Pneumatic casing; 92. Ventilation slot; 93. Third fan; 94. Grille plate; 95. Rotating mechanism; 951. Fixing frame; 952. Connecting shaft; 953. Connecting frame; 954. Blade; 955. Rotating bracket; 956. Soft rubber block; 957. Block surface cut. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5This utility model provides a technical solution: a waste textile dual-shaft shredder with multi-stage screening function, including a crushing barrel 1, a feed pipe 2 fixedly connected to one side of the outside of the crushing barrel 1, a screening component 8 fixedly connected to the side of the outside of the crushing barrel 1 away from the feed pipe 2, a motor 4 fixedly connected to one side of the outside of the crushing barrel 1, a central shaft 5 rotatably connected to the inner wall of the crushing barrel 1, crushing components 6 fixedly connected to both sides of the outside of the central shaft 5, a fixed connection between one side of the outside of the central shaft 5 and the output end of the motor 4, a friction mechanism 7 fixedly connected to the middle of the outside of the central shaft 5, legs 3 fixedly connected to both sides of the outside of the crushing barrel 1, and a pneumatic component 9 fixedly connected to the side of the outside of the crushing barrel 1 near the feed pipe 2; the material enters the interior of the crushing barrel 1 through the feed pipe 2, and the central shaft 5 is rotated by the motor 4, causing the central shaft 5 to drive the crushing components 6 and the friction mechanism 7 to operate. The crushing components 6 adopt... The dual-shaft crushing design enhances the processing efficiency of the components and improves the crushing effect of materials. The friction mechanism 7 rubs against the inner wall of the crushing barrel 1 to reduce material adhesion and minimize crushing dead zones. The rotation of the components causes the material to move towards the crushing assembly 6, achieving secondary crushing and uniform crushing, thus reducing material volume differences. The pneumatic assembly 9 supplies air to the inside of the crushing barrel 1, which on the one hand cleans the material inside the equipment, reduces material adhesion, and improves the material chip removal effect; on the other hand, the pneumatic assembly 9 moves the material, adapting to the crushing assembly 6. The air force causes the material to drift and contact the crushing assembly 6, improving the material crushing efficiency. After material processing, the material moves to the screening assembly 8, where it is screened to remove chips and separate materials of different sizes, facilitating subsequent processing and meeting subsequent processing requirements.

[0026] The crushing assembly 6 includes a crushing frame 61, with a support shaft 62 fixedly connected between opposite faces of the crushing frame 61. Crushing blocks 63 are fixedly connected to the outer side of the support shaft 62. The central shaft 5 drives the support shaft 62 to rotate, causing the support shaft 62 to control the crushing blocks 63 to contact the material. This achieves active material gripping, preventing waste textiles from tangling and improving the material handling effect, thus facilitating subsequent operations. Through this dual-shaft structure design, it improves crushing efficiency and particle size uniformity.

[0027] The friction mechanism 7 includes a connecting column 71, a cylindrical housing 72 fixedly connected to the outer side of the connecting column 71, a spring strip 73 fixedly connected to the inner side of the cylindrical housing 72, a support rod 74 fixedly connected to one side of the outer side of the spring strip 73, the outer side of the support rod 74 being slidably connected to the inner side of the cylindrical housing 72, a friction plate 75 fixedly connected to the outer side of the support rod 74 away from the spring strip 73, a silicone pad 76 fixedly connected to the outer side of the friction plate 75 away from the support rod 74, and a strip-shaped groove 77 is formed on the outer side of the silicone pad 76. The connecting column 71 rotates with the central shaft 5, causing the support rod 74 to control the friction plate 75 to rub against the inner wall of the crushing barrel 1. This improves crushing efficiency and particle size uniformity, prevents material accumulation, accelerates discharge, refines crushed particle size, and reduces large-piece residue, thereby reducing material adhesion and crushing dead angles. The rotation of the components causes the material to move towards the crushing component 6, achieving secondary crushing and uniform crushing, reducing material volume differences. When the friction plate 75 rubs against the inner wall of the crushing barrel 1, the support rod 74 squeezes the spring strip 73 on the inner wall of the cylindrical shell 72, thereby playing a shock-absorbing and buffering role, reducing collisions between components, and improving component stability. The silicone pad 76 increases the wear resistance of the components, provides protection for the components, reduces wear between components, and extends the service life of the components. The groove 77 is opened to increase the surface texture of the components, improve the cleaning effect of the components, and increase the deformation effect of the components, further improving the buffering effect.

[0028] The screening assembly 8 includes a screening housing 81, an outer housing 86 fixedly connected to the outside of the screening housing 81, a handle 89 provided on the inside of the outer housing 86, a semi-arc frame 82 fixedly connected to one side of the handle 89, a screening plate 83 inserted into the inside of the semi-arc frame 82, a conical plate 84 fixedly connected to the bottom of the screening housing 81, a first blower 85 fixedly connected to the outside of the conical plate 84, a funnel plate 87 fixedly connected to the inner wall of the conical plate 84 near the first blower 85, and a collection assembly 88 fixedly connected to the outside of the screening housing 81 away from the outer housing 86. Material blocks enter the screening shell 81 from the crushing bucket 1. Larger particles flow from the screening plate 83 to the conical plate 84, thus achieving the function of material discharge. The semi-arc frame 82 is inserted into the screening plate 83 for easy fixing and disassembly. The handle 89 controls the semi-arc frame 82 to be placed inside the outer shell 86 for easy disassembly and installation. The collection component 88 generates suction to absorb and discharge finer particles, thus achieving the function of screening materials and distinguishing particle sizes to meet different subsequent operation needs. The conical plate 84 guides the material to fall. The first fan 85 generates airflow, which flows through the funnel plate 87 to flush the screening plate 83, thus achieving the function of airflow flushing the components and cleaning the component holes, preventing the holes from becoming blocked after long-term operation, preventing the components from falling too fast, and preventing the discharge effect from being affected. The funnel plate 87 guides the airflow and concentrates the airflow.

[0029] The collection assembly 88 includes a collection housing 881. A partition plate 882 is fixedly connected to the inner wall of the collection housing 881 near the screening housing 81. A second blower 883 is fixedly connected to the outer side of the collection housing 881 away from the screening housing 81. A chip discharge pipe 884 is fixedly connected to the bottom of the collection housing 881. The partition plate 882 intercepts larger particles to prevent material mixing. The second blower 883 generates airflow to draw finer materials from the partition plate 882 side into the collection housing 881, thereby achieving the function of screening materials. The materials are discharged outward from the chip discharge pipe 884 for subsequent collection or processing.

[0030] Please see Figure 6-7The pneumatic assembly 9 includes a pneumatic housing 91. A third fan 93 is fixedly connected to the outer side of the pneumatic housing 91 away from the crushing barrel 1. A ventilation slot 92 is formed inside the pneumatic housing 91 near the third fan 93. A rotating mechanism 95 is fixedly connected to the inner wall of the ventilation slot 92. A grid plate 94 is fixedly connected to the inner wall of the ventilation slot 92 near the crushing barrel 1. The third fan 93 generates airflow, which sends air into the crushing barrel 1 to flush the inner wall of the equipment, thereby reducing material retention and cleaning the inside of the equipment. This reduces debris adhesion and improves the cleaning effect. The pneumatic assembly 9 moves the material, allowing it to adapt to the crushing assembly 6. The airflow causes the material to float and contact the crushing assembly 6, improving the crushing efficiency. The grid plate 94 blocks impurities, preventing them from entering the components and affecting the fan rotation, thus ensuring the best operating results.

[0031] The rotating mechanism 95 includes a fixed frame 951, a connecting shaft 952 rotatably connected to the inner side of the fixed frame 951, a connecting frame 953 fixedly connected to the outer side of the connecting shaft 952, a blade 954 fixedly connected to the outer side of the connecting frame 953, a rotating bracket 955 fixedly connected to the outer side of the connecting frame 953 away from the blade 954, a soft rubber block 956 fixedly connected to the outer side of the rotating bracket 955, and a block surface cutout 957 opened on the outer side of the soft rubber block 956 away from the rotating bracket 955. Wind force acts on the surface of blade 954, blade 954 controls the rotation of connecting shaft 952, causing rotating bracket 955 to control soft rubber block 956 to rub against grid plate 94, thereby cleaning impurities on the surface of the components, reducing impurity accumulation, preventing blockage of holes, and avoiding affecting wind flow. Soft rubber block 956 also acts as a shock absorber, reducing rigid collisions between components, thereby reducing wear and extending the service life of the components. The opening slits 957 on the block surface increase the heat dissipation effect of the components, preventing overheating caused by prolonged friction and preventing damage to the friction performance of the components.

[0032] During operation, material enters the crushing barrel 1 through the feed pipe 2. The central shaft 5 is rotated by the motor 4, which drives the crushing component 6 and the friction mechanism 7 to operate. The crushing component 6 adopts a dual-shaft crushing design to increase the processing effect of the components and improve the crushing effect of the material. The friction mechanism 7 rubs against the inner wall of the crushing barrel 1 to reduce material adhesion and reduce crushing dead corners. The rotation of the components causes the material to move towards the crushing component 6, thereby achieving secondary crushing and uniform crushing, reducing material volume differences. The pneumatic component 9 supplies air to the inside of the crushing barrel 1, which on the one hand cleans the material inside the equipment, reduces material adhesion, and improves the material chip removal effect; on the other hand, the pneumatic component 9 moves the material, adapting to the crushing component 6. The air force causes the material to float and contact the crushing component 6, improving the crushing efficiency of the material. After the material is processed, it moves to the screening component 8. The screening component 8 removes chips and screens materials of different sizes, which facilitates subsequent processing and meets subsequent processing requirements.

[0033] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A waste textile bishaft shredder with multi-stage screening function, characterized in that, The device includes a crushing barrel (1), a feed pipe (2) fixedly connected to one side of the outside of the crushing barrel (1), a screening component (8) fixedly connected to the side of the outside of the crushing barrel (1) away from the feed pipe (2), a motor (4) fixedly connected to one side of the outside of the crushing barrel (1), a central shaft (5) rotatably connected to the inner wall of the crushing barrel (1), crushing components (6) fixedly connected to both sides of the outside of the central shaft (5), a side of the outside of the central shaft (5) fixedly connected to the output end of the motor (4), a friction mechanism (7) fixedly connected to the middle of the outside of the central shaft (5), a stand (3) fixedly connected to both sides of the outside of the crushing barrel (1), and a pneumatic component (9) fixedly connected to the side of the outside of the crushing barrel (1) near the feed pipe (2). The crushing assembly (6) includes a crushing frame (61), a support shaft (62) is fixedly connected between opposite faces of the crushing frame (61), and a crushing block (63) is fixedly connected to the outside of the support shaft (62).

2. The waste textile bishaft shredder with multi-stage screening function according to claim 1, characterized in that: The friction mechanism (7) includes a connecting column (71), a cylindrical shell (72) is fixedly connected to the outer side of the connecting column (71), a spring strip (73) is fixedly connected to the inner side of the cylindrical shell (72), a support rod (74) is fixedly connected to one side of the outer side of the spring strip (73), the outer side of the support rod (74) is slidably connected to the inner side of the cylindrical shell (72), a friction plate (75) is fixedly connected to the outer side of the support rod (74) away from the spring strip (73), a silicone pad (76) is fixedly connected to the outer side of the friction plate (75) away from the support rod (74), and a strip groove (77) is provided on the outer side of the silicone pad (76).

3. The waste textile bishaft shredder with multi-stage screening function according to claim 1, characterized in that: The screening assembly (8) includes a screening housing (81), an outer housing (86) is fixedly connected to the outer side of the screening housing (81), a handle (89) is provided on the inner side of the outer housing (86), a semi-arc frame (82) is fixedly connected to one side of the handle (89), a screening plate (83) is inserted into the inner side of the semi-arc frame (82), a conical plate (84) is fixedly connected to the bottom of the screening housing (81), a first fan (85) is fixedly connected to the outer side of the conical plate (84), a funnel plate (87) is fixedly connected to the inner wall of the conical plate (84) near the first fan (85), and a collection assembly (88) is fixedly connected to the outer side of the screening housing (81) away from the outer housing (86).

4. The waste textile bishaft shredder with multi-stage screening function according to claim 3, characterized in that: The collection assembly (88) includes a collection housing (881), a partition plate (882) is fixedly connected to the inner wall of the collection housing (881) on the side close to the screening housing (81), a second fan (883) is fixedly connected to the outer side of the collection housing (881) away from the screening housing (81), and a chip discharge pipe (884) is fixedly connected to the bottom of the collection housing (881).

5. A waste textile bishaft shredder with multi-stage screening function according to claim 1, characterized in that: The pneumatic assembly (9) includes a pneumatic housing (91). A third fan (93) is fixedly connected to the outside of the pneumatic housing (91) away from the crushing barrel (1). A ventilation slot (92) is provided inside the pneumatic housing (91) on the side close to the third fan (93). A rotating mechanism (95) is fixedly connected to the inner wall of the ventilation slot (92). A grid plate (94) is fixedly connected to the inner wall of the ventilation slot (92) on the side close to the crushing barrel (1).

6. A waste textile bishaft shredder with multi-stage screening function according to claim 5, characterized in that: The rotating mechanism (95) includes a fixed frame (951), a connecting shaft (952) is rotatably connected to the inner side of the fixed frame (951), a connecting frame (953) is fixedly connected to the outer side of the connecting shaft (952), a blade (954) is fixedly connected to the outer side of the connecting frame (953), a rotating bracket (955) is fixedly connected to the outer side of the connecting frame (953) away from the blade (954), a soft rubber block (956) is fixedly connected to the outer side of the rotating bracket (955), and a block surface cutout (957) is opened on the outer side of the soft rubber block (956) away from the rotating bracket (955).

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