A polyvinyl chloride insulation product crushing and recycling device

Abstract

The present invention belongs to the technical field of crushing and recycling devices, and discloses a crushing and recycling device for polyvinyl chloride insulation products. The crushing and recycling device for polyvinyl chloride insulation products includes a return material box, the lower surface of the return material box is fixedly connected with support legs, a crushing box is arranged inside the return material box, a feed hopper is fixedly connected to the upper surface of the crushing box, a driving motor is fixedly connected to the upper surface of the crushing box, and an output end of the driving motor is fixedly connected with a driving shaft. The crushing and recycling device for polyvinyl chloride insulation products utilizes the combined use of a crushing mechanism and a crushing component. The polyvinyl chloride material products are roughly processed and crushed by the crushing component. Subsequently, after the cutting edges in the crushing component cooperate with the extrusion grooves, the extrusion grooves increase the shear stress in the opposite direction, and at the same time, the high-frequency opening and closing of the cutting edges can quickly divide larger materials into small pieces, avoiding the situation that the polyvinyl chloride material products of recycled cables are difficult to crush due to their own elasticity and toughness.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing and recycling devices, and particularly to a crushing and recycling device for polyvinyl chloride insulating products. Background Art

[0002] Polyvinyl chloride, abbreviated as PVC in English, is a polymer formed by the polymerization of vinyl chloride monomers under the action of initiators such as peroxides and azo compounds or under the action of light and heat according to the free radical polymerization reaction mechanism. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively called vinyl chloride resins. However, when this material is used as the outer layer material of cables, plasticizers will be added to improve the ductility and impact resistance of the PVC material, making it have better toughness performance.

[0003] Existing crushing and recycling devices are generally used to crush polyvinyl chloride material products with lower toughness. If polyvinyl chloride material products used for cables are crushed, the crushing effect will be reduced due to the increased toughness of the material. At the same time, some of the crushed block-shaped polyvinyl chloride materials will curl or bounce due to their own toughness and elasticity during crushing and extrusion, resulting in a situation where the crushing device is difficult to crush. Summary of the Invention

[0004] The purpose of the present invention is to provide a crushing and recycling device for polyvinyl chloride insulating products, which effectively solves the problem that existing crushing and recycling devices are generally used to crush polyvinyl chloride material products with lower toughness. If polyvinyl chloride material products used for cables are crushed, the crushing effect will be reduced due to the increased toughness of the material. At the same time, some of the crushed block-shaped polyvinyl chloride materials will curl or bounce due to their own toughness and elasticity during crushing and extrusion, resulting in a situation where the crushing device is difficult to crush.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: A crushing and recycling device for polyvinyl chloride insulating products, including a return material box, the lower surface of the return material box is fixedly connected with support legs, a crushing box is arranged inside the return material box, a feeding hopper is fixedly connected to the upper surface of the crushing box, a driving motor is fixedly connected to the upper surface of the crushing box, the output end of the driving motor is fixedly connected with a driving shaft, and the bottom end of the driving shaft extends into the inside of the crushing box and a crushing mechanism is arranged on the outside, a screening mechanism is arranged inside the return material box, lifting mechanisms are arranged on both the left and right sides of the inner wall of the return material box, a positioning block is fixedly connected to the inner wall of the return material box, and the inner side of the positioning block is fixedly connected to the outside of the crushing box, and a discharge hopper is fixedly connected to the inner bottom wall of the return material box;

[0006] The crushing mechanism includes:

[0007] A positioning ring, which is arranged on the outside of the driving shaft;

[0008] Fixed cutter, the inner side of the fixed cutter is fixedly connected to the outer side of the positioning ring, and the outer side of the fixed cutter is fixedly connected to the inner wall of the crushing box;

[0009] Crushing assembly, the crushing assembly is arranged inside the fixed cutter;

[0010] The crushing assembly includes:

[0011] Driven block, the driven block is movably connected inside the through hole provided in the positioning ring;

[0012] Driving screw, the driving screw is fixedly connected to the outer side of the driven block, and the right side of the driving screw is arranged inside the groove provided in the fixed cutter;

[0013] Driving block, several driving blocks are fixedly connected to the outer side of the driving shaft, and the driving blocks and the driven blocks are arranged alternately;

[0014] Driving wheel, the driving wheel is rotatably connected to the outer side of the driving screw;

[0015] Fixed frame, the fixed frame is fixedly connected to the inner wall of the fixed cutter, and the end of the fixed frame is movably connected to the inner side of the groove provided in the driving wheel;

[0016] Mounting rod, the left side of the mounting rod is fixedly connected to the outer side of the positioning ring, and the right side of the mounting ring is fixedly connected to the inner wall of the fixed cutter;

[0017] Driven wheel, the driven wheel is rotatably connected to the outer side of the mounting rod through a bearing, and the driven wheel and the driving wheel are meshed and installed;

[0018] Cutting edge, the top of the cutting edge is fixedly connected to the outer side of the driven wheel, and the outer side of the cutting edge is arranged inside the groove provided in the fixed cutter;

[0019] Limit plate, the limit plate is fixedly connected to the right end of the driving screw;

[0020] Return spring, one end of the return spring is fixedly connected to the right side of the limit plate, and the other end of the return spring is fixedly connected to the inner wall of the fixed cutter.

[0021] Through the above technical solution, by using the cooperation of the crushing mechanism and the crushing assembly, the cutting edge is indirectly extended by driving the driven wheel through the driving wheel arranged in the crushing assembly, and the polyvinyl chloride material is cut. At the same time, the driving block and the driven block cooperate to make the screw reciprocate telescopically, thereby increasing the opening and closing frequency of the cutting edge, so as to cut the polyvinyl chloride material products into pieces, and avoid the situation that large products are inconvenient to cut due to curling and bouncing caused by their own properties.

[0022] Preferably, the crushing mechanism further includes a mounting ring, moving cutters, extrusion grooves, connecting shafts, stirring cutters, sealing rings, driving gears, and racks. An outer side of the driving shaft is fixedly connected with the mounting ring. An outer side of the mounting ring is fixedly connected with a plurality of moving cutters. Extrusion grooves are arranged on outer sides of the moving cutters and the fixed cutters. An outer side of the driving shaft is rotatably connected with the connecting shaft through a bearing. An outer side of the connecting shaft is fixedly connected with a plurality of stirring cutters. An inner wall of the crushing box is movably connected with the sealing ring through a groove provided thereon. A right end of the connecting shaft is movably connected to a through hole provided on the sealing ring. The right end of the connecting shaft passes through the sealing ring and is fixedly connected with the driving gear. The driving gear is movably connected in a groove provided in the crushing box. The crushing box is fixedly connected with the rack through a groove provided thereon. The rack is meshed with the driving gear.

[0023] Through the above technical solution, after the driving gear provided in the crushing mechanism of the present application drives the driving shaft to rotate in cooperation with the rack, the stirring cutters provided are further used to crush the polyvinyl chloride products. At the same time, it is possible to avoid the situation that the crushed materials accumulate at the bottom of the crushing cylinder and cause blockage. At the same time, the cooperation of the fixed cutters and the moving cutters further crushes the polyvinyl chloride products through the provided extrusion grooves. When the moving cutters rotate and cooperate with the fixed cutters, the shear stress is increased. While accelerating the crushing speed of the products, it is possible to avoid the polyvinyl chloride materials bouncing or curling and affecting the crushing effect.

[0024] Preferably, the screening and moving mechanism includes an intercepting plate, a screening and moving plate, a servo motor, a connecting rod, a baffle, a discharge hopper, a screening and moving motor, and a cam. The lower surface of the crushing box is movably connected with the intercepting plate through a limiting groove provided thereon. The inner wall of the intercepting plate is fixedly connected with the screening and moving plate. The upper surface of the screening and moving plate is fixedly connected with the servo motor. An output end of the servo motor is fixedly connected with one end of the connecting rod. The other end of the connecting rod is fixedly connected with the baffle. Discharge hoppers are fixedly connected to both left and right sides of the intercepting plate. The inner wall of the return material box is fixedly connected with the screening and moving motor. An output end of the screening and moving motor is fixedly connected with the cam. An outer side of the cam is in contact with the lower surface of the intercepting plate.

[0025] Through the above technical solution, the present application uses the screening and moving mechanism to sort the crushed polyvinyl chloride material products. The crushed products that match the screening and moving plate are discharged through the discharge hopper. Those that do not meet the requirements move to both sides through the screening and moving plate and are discharged into the return material assembly through the discharge hopper for secondary crushing until they meet the crushing requirements.

[0026] Preferably, the lifting mechanism includes a fixed plate, a lifting motor, a positioning wheel, a limiting rod, a lifting plate, a lifting wheel, a driving belt, and a material return assembly. Fixed plates are fixedly connected to both the left and right sides of the material return box. The upper surface of the fixed plate is fixedly connected to a lifting motor. The output end of the lifting motor passes through the material return box and is fixedly connected to a positioning wheel. The inner wall of the material return box is slidably connected to a limiting rod through a provided guiding groove. The side of the limiting rod away from the material return box is fixedly connected to a lifting plate. A lifting wheel is rotatably connected to the side of the lifting plate close to the material return box. A driving belt is arranged between the lifting wheel and the positioning wheel, and both ends of the driving belt are fixedly connected to the outer sides of the positioning wheel and the lifting wheel respectively. A material return assembly is arranged on the upper surface of the lifting plate.

[0027] Through the above technical solution, the lifting mechanism of the present application reworks the polyvinyl chloride material products that do not meet the requirements of the crushing process through the material return assembly for secondary crushing. At the same time, the lifting mechanism facilitates the lifting of the materials excluded by the screening mechanism so as to enter the inside of the crushing box through the material return hopper.

[0028] Preferably, the material return assembly includes a material return motor, a positioning shaft, a fixed block, a material return box, and a material return hopper. The upper surface of the lifting plate is fixedly connected to a material return motor. The output end of the material return motor is fixedly connected to a positioning shaft. A fixed block is fixedly connected to the outer side of the positioning shaft. A material return box is fixedly connected to the outer side of the fixed block. Material return hoppers are fixedly connected to both the left and right sides of the crushing box.

[0029] Through the above technical solution, the material return assembly and the lifting mechanism of the present application can operate independently in cooperation. When the material return box of the left material return mechanism is almost full, the servo motor drives the connecting rod to rotate, further driving the baffle to block the through hole on the left side of the intercepting plate, so that the right side is opened, and the materials are injected into the right material return assembly and the lifting mechanism, which is convenient for use.

[0030] Preferably, the extrusion grooves provided on the fixed cutter and the moving cutter are both S-shaped, and the extrusion grooves provided on the fixed cutter and the moving cutter are arranged in a relative installation.

[0031] Through the above technical solution, the extrusion grooves of the present application are set to be S-shaped to increase the shear stress. At the same time, when arranged in a relative installation, the polyvinyl chloride material products are torn and crushed by the increased shear stress of the extrusion grooves when being extruded.

[0032] Preferably, the screening plate is set to be stepped, and each horizontal plane of the screening plate is provided with screening holes.

[0033] Through the above technical solution, with the stepped screening plate of the present application, when the cam is driven by the screening motor, the screening plate moves up and down to screen the crushed materials of the polyvinyl chloride products on the surface. At the same time, the stepped setting facilitates the movement of the non-compliant materials to the vicinity of the material return assembly.

[0034] Preferably, the stirring cutters are all set as S-shaped cutters, and when the stirring cutters are located in the same vertical plane, there are five of them, and the five stirring cutters are arranged annularly and equidistantly outside the connecting shaft with the central axis of the connecting shaft as the reference.

[0035] Through the above technical solution, in the present application, the accumulation of materials at the bottom of the crushing box is prevented from causing blockage through the setting of the stirring cutters, which is convenient for use.

[0036] Preferably, the lifting plate is set as a Z shape, and the top end of the lifting plate is connected by a cross plate, and the lifting wheel is installed outside the cross plate.

[0037] By adopting the foregoing technical solution, the beneficial effects of the present invention are:

[0038] 1. For the PVC insulation product crushing and recycling device, by using the cooperation of the crushing mechanism and the crushing component, the PVC material product is roughly processed and crushed by the crushing component. Subsequently, after the cutting edge in the crushing component is used in cooperation with the extrusion groove, the extrusion groove increases the shear stress in the opposite direction, and at the same time, the high-frequency opening and closing of the cutting edge can quickly divide the larger materials into small pieces, avoiding the situation that the PVC material products of the recycled cables are difficult to crush due to their own elasticity and toughness.

[0039] 2. For the PVC insulation product crushing and recycling device, by using the cooperation of the screening mechanism and the lifting mechanism, first, the crushed materials are screened by the screening mechanism. The qualified ones fall through the screening plate to the discharge hopper and are discharged, and the unqualified materials enter the return material component in the lifting mechanism through the screening plate to wait for return material and be crushed again until they are qualified, improving the crushing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a perspective view of the present invention;

[0041] Figure 2 is a front view of the present invention;

[0042] Figure 3 is the present invention Figure 2 cross-sectional view at A-A in;

[0043] Figure 4 is the present invention Figure 2 cross-sectional view at B-B in;

[0044] Figure 5 is the present invention Figure 4 enlarged view at C in;

[0045] Figure 6 is a top view of the present invention;

[0046] Figure 7 is the present inventionFigure 6 Cross-sectional view at D-D in the [device];

[0047] Figure 8 This invention Figure 7 Enlarged view at E in the [device];

[0048] Figure 9 This invention Figure 7 Enlarged view at F in the [device];

[0049] Figure 10 This invention Figure 7 Enlarged view at G in the [device].

[0050] In the figure: 1 return material box, 2 support legs, 3 crushing box, 4 feed hopper, 5 drive motor, 6 drive shaft, 7 crushing mechanism, 71 positioning ring, 72 fixed cutter, 73 mounting ring, 74 moving cutter, 75 extrusion groove, 76 connecting shaft, 77 stirring cutter, 78 sealing ring, 79 drive gear, 710 rack, a crushing assembly, a1 driven block, a2 drive screw, a3 drive block, a4 driving wheel, a5 fixing frame, a6 mounting rod, a7 driven wheel, a8 cutting edge, a9 limiting plate, a10 return spring, 8 sieve moving mechanism, 81 intercepting plate, 82 sieve moving plate, 83 servo motor, 84 connecting rod, 85 baffle, 86 discharge hopper, 87 sieve moving motor, 88 cam, 9 lifting mechanism, 91 fixing plate, 92 lifting motor, 93 positioning wheel, 94 limiting rod, 95 lifting plate, 96 lifting wheel, 97 drive belt, b return material assembly, b1 return material motor, b2 positioning shaft, b3 fixing block, b4 return material box, b5 return material hopper, 10 positioning block, 11 discharge hopper. Detailed implementation manner

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0053] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Please refer to Figures 1-10 , the present invention provides a technical solution: a pulverizing and recycling device for polyvinyl chloride insulating products, including a return material box 1, the lower surface of the return material box 1 is fixedly connected with support legs 2, a pulverizing box 3 is arranged inside the return material box 1, a feed hopper 4 is fixedly connected to the upper surface of the pulverizing box 3, a driving motor 5 is fixedly connected to the upper surface of the pulverizing box 3, the output end of the driving motor 5 is fixedly connected with a driving shaft 6, and the bottom end of the driving shaft 6 extends into the interior of the pulverizing box 3 and a pulverizing mechanism 7 is arranged on the outside, a screening mechanism 8 is arranged inside the return material box 1, lifting mechanisms 9 are arranged on both the left and right sides of the inner wall of the return material box 1, a positioning block 10 is fixedly connected to the inner wall of the return material box 1, and the inner side of the positioning block 10 is fixedly connected to the outside of the pulverizing box 3, a discharge hopper 11 is fixedly connected to the inner bottom wall of the return material box 1;

[0055] The pulverizing mechanism 7 includes:

[0056] A positioning ring 71, the positioning ring 71 is arranged on the outside of the driving shaft 6;

[0057] Fixed cutters 72, the inner sides of the fixed cutters 72 are fixedly connected to the outside of the positioning ring 71, and the outer sides of the fixed cutters 72 are fixedly connected to the inner wall of the pulverizing box 3;

[0058] A pulverizing assembly a, the pulverizing assembly a is arranged inside the fixed cutters 72;

[0059] The pulverizing assembly a includes:

[0060] A driven block a1, the driven block a1 is movably connected inside the through hole arranged on the positioning ring 71;

[0061] A driving screw a2, the driving screw a2 is fixedly connected to the outside of the driven block a1, and the right side of the driving screw a2 is arranged inside the groove arranged on the fixed cutter 72;

[0062] Driving blocks a3, several driving blocks a3 are fixedly connected to the outside of the driving shaft 6, and the driving blocks a3 and the driven blocks a1 are arranged alternately;

[0063] A driving wheel a4, the driving wheel a4 is rotatably connected to the outside of the driving screw a2;

[0064] Fixing bracket a5, the fixing bracket a5 is fixedly connected to the inner wall of the fixed cutter 72, and the end of the fixing bracket a5 is movably connected to the inner side of the groove provided in the driving wheel a4;

[0065] Mounting rod a6, the left side of the mounting rod a6 is fixedly connected to the outside of the positioning ring 71, and the right side of the mounting ring 73 is fixedly connected to the inner wall of the fixed cutter 72;

[0066] Driven wheel a7, the driven wheel a7 is rotatably connected to the outside of the mounting rod a6 through a bearing, and the driven wheel a7 is meshed and installed with the driving wheel a4;

[0067] Cutting edge a8, the top end of the cutting edge a8 is fixedly connected to the outside of the driven wheel a7, and the outside of the cutting edge a8 is arranged inside the groove provided in the fixed cutter 72;

[0068] Limit plate a9, the limit plate a9 is fixedly connected to the right end of the driving screw a2;

[0069] Return spring a10, one end of the return spring a10 is fixedly connected to the right side of the limit plate a9, and the other end of the return spring a10 is fixedly connected to the inner wall of the fixed cutter 72.

[0070] Through the above technical solution, by using the cooperation of the crushing mechanism 7 and the crushing assembly a, the cutting edge a8 is indirectly extended by driving the driven wheel a7 through the driving wheel a4 provided in the crushing assembly a, and the polyvinyl chloride material is cut. At the same time, the driving block a3 and the driven block a1 cooperate to make the screw reciprocate telescopically, thereby increasing the opening and closing frequency of the cutting edge a8, so as to cut the polyvinyl chloride material products, and avoid the situation that large products are inconvenient to cut due to curling and bouncing caused by their own properties;

[0071] Refer to Figure 7 、 8 As shown in 9 and 10, the crushing mechanism 7 further includes a mounting ring 73, a moving cutter 74, an extrusion groove 75, a connecting shaft 76, a stirring cutter 77, a sealing ring 78, a driving gear 79 and a rack 710. The outside of the driving shaft 6 is fixedly connected with a mounting ring 73, and a plurality of moving cutters 74 are fixedly connected to the outside of the mounting ring 73. Extrusion grooves 75 are provided on the outside of both the moving cutter 74 and the fixed cutter 72. The outside of the driving shaft 6 is rotatably connected with a connecting shaft 76 through a bearing, and a plurality of stirring cutters 77 are fixedly connected to the outside of the connecting shaft 76. The inner wall of the crushing box 3 is movably connected with a sealing ring 78 through a groove provided, and the right end of the connecting shaft 76 is movably connected to the through hole provided in the sealing ring 78. The right end of the connecting shaft 76 passes through the sealing ring 78 and is fixedly connected with a driving gear 79, and the driving gear 79 is movably connected to the groove provided in the crushing box 3. The crushing box 3 is fixedly connected with a rack 710 through a groove provided, and the rack 710 is meshed and connected with the driving gear 79.

[0072] Through the above technical solution, after the driving gear 79 provided in the crushing mechanism 7 of the present application cooperates with the rack 710 to drive the driving shaft 6 to rotate, the stirring cutter 77 is further used to crush the polyvinyl chloride products, and at the same time, it is avoided that the crushed materials accumulate at the bottom of the crushing cylinder and cause blockage. At the same time, the combined use of the fixed cutter 72 and the moving cutter 74 further crushes the polyvinyl chloride products through the provided extrusion groove 75. When the moving cutter 74 rotates and cooperates with the fixed cutter 72, the shear stress is increased, and while accelerating the crushing speed of the products, it is avoided that the polyvinyl chloride materials bounce or curl and affect the crushing effect.

[0073] Refer to Figure 3 、 4 As shown in FIGS. 7, the screening mechanism 8 includes an intercepting plate 81, a screening plate 82, a servo motor 83, a connecting rod 84, a baffle 85, a discharge hopper 86, a screening motor 87 and a cam 88. The lower surface of the crushing box 3 is movably connected with the intercepting plate 81 through the provided limiting groove. The inner wall of the intercepting plate 81 is fixedly connected with the screening plate 82. The upper surface of the screening plate 82 is fixedly connected with the servo motor 83. One end of a connecting rod 84 is fixedly connected to the output end of the servo motor 83. The other end of the connecting rod 84 is fixedly connected with the baffle 85. The discharge hoppers 86 are fixedly connected to both the left and right sides of the intercepting plate 81. The screening motor 87 is fixedly connected to the inner wall of the return box 1. The output end of the screening motor 87 is fixedly connected with the cam 88, and the outer side of the cam 88 is in contact with the lower surface of the intercepting plate 81.

[0074] Through the above technical solution, the present application uses the screening mechanism 8 to sort the crushed polyvinyl chloride material products. The crushed products that match the screening plate 82 are discharged through the discharge hopper 11. Those that do not meet the requirements move to both sides through the screening plate 82 and are discharged into the return component b through the discharge hopper 86 for secondary crushing until they meet the crushing requirements.

[0075] Refer to Figure 1 、 3 As shown in FIGS. 7, the lifting mechanism 9 includes a fixing plate 91, a lifting motor 92, a positioning wheel 93, a limiting rod 94, a lifting plate 95, a lifting wheel 96, a driving belt 97 and a return component b. The fixing plates 91 are fixedly connected to both the left and right sides of the return box 1. The upper surface of the fixing plate 91 is fixedly connected with the lifting motor 92. The output end of the lifting motor 92 passes through the return box 1 and is fixedly connected with the positioning wheel 93. The inner wall of the return box 1 is slidably connected with the limiting rod 94 through the provided guiding groove. The side of the limiting rod 94 away from the return box 1 is fixedly connected with the lifting plate 95. The side of the lifting plate 95 close to the return box 1 is rotatably connected with the lifting wheel 96. A driving belt 97 is arranged between the lifting wheel 96 and the positioning wheel 93, and both ends of the driving belt 97 are fixedly connected to the outer sides of the positioning wheel 93 and the lifting wheel 96 respectively. The return component b is arranged on the upper surface of the lifting plate 95.

[0076] Through the above technical solution, the lifting mechanism 9 of the present application reworks the PVC material products that do not meet the requirements of the crushing process through the return material component b for secondary crushing. At the same time, the lifting mechanism 9 facilitates the lifting of the materials excluded by the screening mechanism 8 so that they enter the inside of the crushing box 3 through the return hopper b5.

[0077] Refer to Figure 3 、 7 As shown in the figure, the return material component b includes a return material motor b1, a positioning shaft b2, a fixing block b3, a return material box b4, and a return hopper b5. The upper surface of the lifting plate 95 is fixedly connected with a return material motor b1. The output end of the return material motor b1 is fixedly connected with a positioning shaft b2. The outside of the positioning shaft b2 is fixedly connected with a fixing block b3. The outside of the fixing block b3 is fixedly connected with a return material box b4. Both the left and right sides of the crushing box 3 are fixedly connected with return hoppers b5.

[0078] Through the above technical solution, the return material component b and the lifting mechanism 9 of the present application can operate independently in cooperation. When the return material box b4 of the left return material mechanism is almost full, the connecting rod 84 is driven to rotate by the servo motor 83, further driving the baffle 85 to block the through hole on the left side of the intercepting plate 81, so that the right side is opened, and the materials are injected into the right return material component b and the lifting mechanism 9, which is convenient for use.

[0079] Refer to Figure 5 、 9 As shown in the figure, the extrusion grooves 75 provided on the fixed cutter 72 and the moving cutter 74 are both set in an S shape, and the extrusion grooves 75 provided on the fixed cutter 72 and the moving cutter 74 are arranged oppositely.

[0080] Through the above technical solution, the extrusion groove 75 of the present application is set in an S shape to increase the shear stress. At the same time, when arranged oppositely, the PVC material products are subjected to the increased shear stress of the extrusion groove 75 when being extruded, so that they are torn and crushed.

[0081] Refer to Figure 7 As shown in the figure, the screening plate 82 is set in a stepped shape, and each horizontal plane of the screening plate 82 is provided with screening holes.

[0082] Through the above technical solution, when the cam 88 is driven by the screening motor 87, the stepped screening plate 82 moves up and down to screen the PVC product fragments on the surface. At the same time, the stepped setting facilitates the movement of the non-compliant materials to the vicinity of the return material component b.

[0083] Refer to Figure 7 、 10 As shown in the figure, the stirring cutters 77 are all set as S-shaped cutters. When the stirring cutters 77 are located in the same vertical plane, there are five of them, and the five stirring cutters 77 are arranged annularly and equidistantly on the outside of the connecting shaft 76 with the central axis of the connecting shaft 76 as the reference.

[0084] Through the above technical solution, the present application prevents the material at the bottom of the crushing box 3 from accumulating and causing blockage by setting the stirring cutter 77, which is convenient for use.

[0085] Referring to Figure 3 、 7 As shown in the figure, the lifting plate 95 is arranged in a Z shape, and the top end of the lifting plate 95 is connected by a cross plate, and the lifting wheel 96 is installed on the outside of the cross plate.

[0086] When the PVC insulation product crushing and recycling device works, the recycled waste is poured into the crushing box 3 through the feeding hopper 4, and then the driving motor 5 is started. The driving motor 5 drives the driving shaft 6 to rotate, which further drives the crushing mechanism 7 to rotate. The recycled waste is crushed by the cooperation of the moving cutter 74 and the fixed cutter 72. While the driving shaft 6 rotates, the driving block a3 squeezes the driven block a1, and further drives the driving screw a2 to drive the driving wheel a4 to rotate through the driven block a1. Subsequently, the driven wheel a7 rotates to turn out the cutting edge a8 and cut the material. Subsequently, the cut waste falls above the vibrating sieve plate 82. The vibrating sieve motor 87 is started to push the vibrating sieve plate 82 and the intercepting plate 81 to move up and down through the cam 88 and screen out the non-compliant waste. Subsequently, the crushed waste enters the return material box b4. Then the lifting mechanism 9 is started, and the return material assembly b is lifted upward through the lifting mechanism 9. When one side of the return material box b4 is lifted, the servo motor 83 rotates to drive the baffle 85 to rotate through the connecting rod 84 to block the through hole of the intercepting plate 81 on the lifted side, and switch to the other side of the return material box b4 to receive the waste. Subsequently, when reaching the position of the return hopper b5, the lifting motor 92 is stopped. Then the return material motor b1 rotates to pour the waste inside the return material box b4 back into the crushing box 3 through the positioning shaft b2 and the fixing block b3 for crushing.

[0087] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0088] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulverizing and recycling device for polyvinyl chloride insulating products, comprising a return material box (1), characterized in that: The lower surface of the return material box (1) is fixedly connected with support legs (2). Inside the return material box (1), there is a crushing box (3). The upper surface of the crushing box (3) is fixedly connected with a feed hopper (4). The upper surface of the crushing box (3) is fixedly connected with a driving motor (5). The output end of the driving motor (5) is fixedly connected with a driving shaft (6). The bottom end of the driving shaft (6) extends into the interior of the crushing box (3) and a crushing mechanism (7) is arranged on the outer side. Inside the return material box (1), there is a screening mechanism (8). On the left and right sides of the inner wall of the return material box (1), there are lifting mechanisms (9) respectively. The inner wall of the return material box (1) is fixedly connected with a positioning block (10), and the inner side of the positioning block (10) is fixedly connected to the outer side of the crushing box (3). The inner bottom wall of the return material box (1) is fixedly connected with a discharge hopper (11). The crushing mechanism (7) includes: A positioning ring (71), which is arranged on the outer side of the driving shaft (6); Fixed cutters (72), the inner sides of the fixed cutters (72) are fixedly connected to the outer side of the positioning ring (71), and the outer sides of the fixed cutters (72) are fixedly connected to the inner wall of the crushing box (3); A crushing assembly (a), which is arranged inside the fixed cutters (72); The crushing assembly (a) includes: A driven block (a1), which is movably connected inside the through hole arranged on the positioning ring (71); A driving screw (a2), which is fixedly connected to the outer side of the driven block (a1), and the right side of the driving screw (a2) is arranged inside the groove arranged on the fixed cutter (72); Driving blocks (a3), several driving blocks (a3) are fixedly connected to the outer side of the driving shaft (6), and the driving blocks (a3) and the driven blocks (a1) are arranged alternately; A driving wheel (a4), which is rotatably connected to the outer side of the driving screw (a2); A fixing frame (a5), which is fixedly connected to the inner wall of the fixed cutter (72), and the end of the fixing frame (a5) is movably connected to the inner side of the groove arranged on the driving wheel (a4); A mounting rod (a6), the left side of the mounting rod (a6) is fixedly connected to the outer side of the positioning ring (71); A driven wheel (a7), which is rotatably connected to the outer side of the mounting rod (a6) through a bearing, and the driven wheel (a7) is meshed and installed with the driving wheel (a4); Cutting edges (a8), the tops of the cutting edges (a8) are fixedly connected to the outer side of the driven wheel (a7), and the outer sides of the cutting edges (a8) are arranged inside the groove arranged on the fixed cutter (72); A limiting plate (a9), which is fixedly connected to the right end of the driving screw (a2); A return spring (a10), one end of the return spring (a10) is fixedly connected to the right side of the limiting plate (a9), and the other end of the return spring (a10) is fixedly connected to the inner wall of the fixed cutter (72); The crushing mechanism (7) further includes a mounting ring (73), moving cutters (74), extrusion grooves (75), a connecting shaft (76), stirring cutters (77), a sealing ring (78), a driving gear (79) and a rack (710). An outer side of the driving shaft (6) is fixedly connected with the mounting ring (73), and a right side of the mounting ring (73) is fixedly connected to an inner wall of the fixed cutter (72). An outer side of the mounting ring (73) is fixedly connected with a plurality of moving cutters (74). Extrusion grooves (75) are arranged on outer sides of the moving cutters (74) and the fixed cutter (72). An outer side of the driving shaft (6) is rotatably connected with the connecting shaft (76) through a bearing. An outer side of the connecting shaft (76) is fixedly connected with a plurality of stirring cutters (77). An inner wall of the crushing box (3) is movably connected with the sealing ring (78) through a groove provided, and a right end of the connecting shaft (76) is movably connected to a through hole provided in the sealing ring (78). The right end of the connecting shaft (76) passes through the sealing ring (78) and is fixedly connected with the driving gear (79), and the driving gear (79) is movably connected in a groove provided in the crushing box (3). The crushing box (3) is fixedly connected with the rack (710) through a groove provided, and the rack (710) is meshed and connected with the driving gear (79).

2. The pulverizing and recycling device for a polyvinyl chloride insulation product according to claim 1, characterized in that: The screening and moving mechanism (8) includes an intercepting plate (81), a screening and moving plate (82), a servo motor (83), a connecting rod (84), a baffle (85), a discharge hopper (86), a screening and moving motor (87) and a cam (88). A lower surface of the crushing box (3) is movably connected with the intercepting plate (81) through a limiting groove provided. An inner wall of the intercepting plate (81) is fixedly connected with the screening and moving plate (82). An upper surface of the screening and moving plate (82) is fixedly connected with the servo motor (83). An output end of the servo motor (83) is fixedly connected with one end of the connecting rod (84). The other end of the connecting rod (84) is fixedly connected with the baffle (85). Discharge hoppers (86) are fixedly connected to left and right sides of the intercepting plate (81). An inner wall of the return material box (1) is fixedly connected with the screening and moving motor (87). An output end of the screening and moving motor (87) is fixedly connected with the cam (88), and an outer side of the cam (88) is in contact with a lower surface of the intercepting plate (81).

3. The pulverizing and recycling device for a polyvinyl chloride insulating product according to claim 2, wherein: The lifting mechanism (9) includes a fixed plate (91), a lifting motor (92), a positioning wheel (93), a limiting rod (94), a lifting plate (95), a lifting wheel (96), a drive belt (97) and a material return assembly (b). Fixed plates (91) are fixedly connected to both the left and right sides of the material return box (1). The upper surface of the fixed plate (91) is fixedly connected to a lifting motor (92). The output end of the lifting motor (92) passes through the material return box (1) and is fixedly connected to a positioning wheel (93). The inner wall of the material return box (1) is slidably connected to a limiting rod (94) through a provided guide groove. The side of the limiting rod (94) away from the material return box (1) is fixedly connected to a lifting plate (95). A lifting wheel (96) is rotatably connected to the side of the lifting plate (95) close to the material return box (1). A drive belt (97) is provided between the lifting wheel (96) and the positioning wheel (93), and both ends of the drive belt (97) are fixedly connected to the outer sides of the positioning wheel (93) and the lifting wheel (96) respectively. A material return assembly (b) is provided on the upper surface of the lifting plate (95).

4. The pulverizing and recycling device for a polyvinyl chloride insulating product according to claim 3, characterized in that: The material return assembly (b) includes a material return motor (b1), a positioning shaft (b2), a fixed block (b3), a material return box (b4) and a material return hopper (b5). The upper surface of the lifting plate (95) is fixedly connected to a material return motor (b1). The output end of the material return motor (b1) is fixedly connected to a positioning shaft (b2). A fixed block (b3) is fixedly connected to the outer side of the positioning shaft (b2). A material return box (b4) is fixedly connected to the outer side of the fixed block (b3). Material return hoppers (b5) are fixedly connected to both the left and right sides of the crushing box (3).

5. A pulverizing and recycling device for polyvinyl chloride insulating products according to claim 4, characterized in that: The extrusion grooves (75) provided on the fixed cutter (72) and the moving cutter (74) are both S-shaped, and the extrusion grooves (75) provided on the fixed cutter (72) and the moving cutter (74) are arranged oppositely.

6. The pulverizing and recycling device for a polyvinyl chloride insulating product according to claim 5, characterized in that: The vibrating sieve plate (82) is arranged in a stepped shape, and each horizontal plane of the vibrating sieve plate (82) is provided with screening holes.

7. An apparatus for pulverizing and recycling a polyvinyl chloride insulated product according to claim 6, characterized in that: The stirring cutters (77) are all S-shaped cutters. When the stirring cutters (77) are located in the same vertical plane, there are five of them, and the five stirring cutters (77) are annularly and equidistantly arranged on the outer side of the connecting shaft (76) with the central axis of the connecting shaft (76) as the reference.

8. A pulverizing and recycling device for polyvinyl chloride insulated products according to claim 7, characterized in that: The lifting plate (95) is arranged in a Z shape, and the top end of the lifting plate (95) is connected by a cross plate. The lifting wheel (96) is installed on the outer side of the cross plate.

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