A waste plastic recycling and crushing device

Abstract

The present invention relates to the technical field of waste plastic processing equipment, and specifically to a waste plastic recycling and crushing device, which solves the problem that when the crushing device crushes the waste plastic, due to the plasticity of the plastic, the general crushing equipment has a poor crushing effect on waste plastics such as plastic bags and rubber strips, and needs to be crushed twice or multiple times, and the crushed plastic has the probability of assisting the surface of the tool, affecting the sharpness of the tool and the crushing effect. A waste plastic recycling and crushing device comprises a fixed support seat, the upper surface of the fixed support seat is fixed with a crushing device shell, the interior of the crushing device shell is provided with a crushing chamber, and the top of the crushing chamber is provided with a feed port. The present invention performs preliminary crushing and shearing of the waste plastic by a reciprocating shearing knife frame and a fixed knife frame fixed inside the crushing chamber, and effectively crushes waste plastics such as plastic bags and rubber strips, shortens the crushing time, and improves the crushing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of waste plastic processing devices, in particular to a waste plastic recycling and crushing device. Background Art

[0002] Waste plastics usually refer to useless plastic products. Waste plastics is a popular term. It does not refer to waste, old and useless plastic products. It also includes some plastic products that are scrapped due to defects in the production process. Most plastic products, especially a large number of disposable ones, have no significant changes in the properties of the plastic materials themselves after use. Therefore, they can be recycled and reprocessed into plastic products using appropriate methods and then used again.

[0003] Waste plastic shells can be recycled and reused to achieve energy saving and environmental protection. Waste plastics need to be crushed when recycled, and then the metals or other impurities in the crushed waste plastics need to be separated. A crusher is needed to crush waste plastics. The crusher is usually composed of an equipment housing, a driving mechanism, a crushing roller and a collection structure. The driving structure is used to drive one or more pairs of crushing rollers to rotate, and the waste plastics are squeezed and sheared to crush the waste plastics.

[0004] However, when the crushing device crushes waste plastics, due to the plasticity of plastics, general crushing equipment has poor crushing effect on waste plastics such as plastic bags and rubber strips, and requires secondary or multiple crushing. In addition, the crushed plastic has the probability of assisting the surface of the tool, affecting the sharpness of the tool and the crushing effect. Therefore, it does not meet the existing needs. In this regard, we propose a waste plastic recycling and crushing device. Summary of the invention

[0005] The purpose of the present invention is to provide a waste plastic recycling and crushing device to solve the problem that when the crushing device proposed in the above background technology crushes waste plastics, due to the plasticity of plastics, general crushing equipment has poor crushing effect on waste plastics such as plastic bags and rubber strips, and needs to be crushed twice or multiple times, and the crushed plastic has the probability of assisting the surface of the tool, affecting the sharpness of the tool and the crushing effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a waste plastic recycling and crushing device, comprising a fixed support seat, a crushing device housing is fixed on the upper surface of the fixed support seat, a crushing chamber is arranged inside the crushing device housing, a feed port is arranged at the top of the crushing chamber, and a plastic reciprocating shear is installed inside the crushing chamber;

[0007] The plastic reciprocating shearing device comprises a plurality of fixed blade frames which are evenly spaced up and down, and both sides of the fixed blade frames are fixed with fixed plates, one side of the fixed plates is fixed to the inner wall of the crushing bin, and two shearing blade frames are slidably installed between every two upper and lower adjacent fixed blade frames, and the two shearing blade frames are staggered up and down, and the shearing blade frames are slidably connected to the fitted fixed blade frames, and a reciprocating connecting rod is fixed to one side of the shearing blade frame, and one end of the reciprocating connecting rod passes through the inner wall of the crushing bin and is slidably inserted in the fixed support seat, and a driving connecting rod is installed above the end of the reciprocating connecting rod located inside the fixed support seat, and a transmission gear plate is installed below the end of the reciprocating connecting rod connected to the driving connecting rod, and both end portions of the driving connecting rod are rotatably inserted with connecting short shafts, and the bottom ends of the two connecting short shafts are respectively rotatably connected with the driving gear plate and the reciprocating connecting rod, and the outer side of the transmission gear plate is meshedly connected with a reciprocating gear, and a driving shaft is fixed inside the reciprocating gear, and the bottom end of the driving shaft is connected to a reciprocating motor through a fixing pin, and the reciprocating motor is fixed inside the fixed support seat.

[0008] Preferably, the fixed knife frame includes two symmetrical fixed side strips, the fixed side strips are fixed to the fixed plate, a fixed knife strip is fixed between the two end portions of the two fixed side strips, two mating blades are provided on both sides of the fixed knife strip, the two mating blades located on the same side of the fixed knife strip are V-shaped and the inclination angle of the mating blade surface is fifteen degrees.

[0009] Preferably, the shearing blade frame includes two symmetrical connecting side strips, the connecting side strips are fixed to one end of the reciprocating connecting rod, a shearing blade is fixed between the two end portions of the two connecting side strips, two shearing blades are provided on both sides of the shearing blade, the two shearing blades located on the same side of the shearing blade are V-shaped and the inclination angle of the shearing blade surface is thirty degrees.

[0010] Preferably, a supporting short shaft is rotatably inserted in the middle of the transmission gear disk, a supporting plate is installed at the bottom end of the supporting short shaft, one end of the supporting plate is fixed to the inner wall of the fixed support seat, a positioning plate is sleeved on the outer side of the driving shaft, the driving shaft is rotatably connected to the positioning plate, and one end of the positioning plate is fixed to the inner wall of the fixed support seat.

[0011] Preferably, a crushing motor is also fixed to the upper surface of the fixed support seat, two symmetrically distributed crushing rollers are installed on the inner side of the bottom end of the crushing bin, crushing teeth are fixed to the outer surface of the crushing rollers, a crushing drive shaft is fixed through the inside of the crushing rollers, and both ends of the crushing drive shaft are connected to the fixed support seat through roller bearings.

[0012] Preferably, a crushing gear is fixed at the end of the output shaft of the crushing motor, the ends of the two crushing drive shafts close to the crushing gear pass through the fixed support seat, and a transmission gear is fixed on the outside of the ends of the crushing drive shafts passing through the fixed support seat, the two transmission gears are meshed with each other, and one of the transmission gears is located above the crushing gear and meshes with the crushing gear.

[0013] Preferably, a plurality of mounting grooves are provided on the inner wall of the bottom end of the crushing bin, and a crushing roller cleaning and grinding structure is installed on the inner side of the mounting groove. The crushing roller cleaning and grinding structure includes a reset rod, which is inclined at an angle of forty-five degrees and slidably inserted into the inner side of the mounting groove. A reset plate is fixed to the outer side of the top end of the reset rod, and a reset spring is fixedly installed between the reset plate and the inner wall of the mounting groove, and the reset spring is sleeved on the outer side of the reset rod.

[0014] Preferably, a rotating cleaning and polishing plate is installed above the reset rod, one end of the rotating cleaning and polishing plate is tilted downward, and the other end of the rotating cleaning and polishing plate is rotatably connected to the inner wall of the mounting groove.

[0015] Preferably, a positioning hole is penetrated through the end of the rotating cleaning and polishing plate connected to the mounting groove, a positioning rod is rotatably inserted inside the positioning hole, and both ends of the positioning rod are rotatably inserted into the inner wall of the mounting groove.

[0016] Preferably, a cleaning and grinding groove is provided on the upper surface of the inclined end of the rotating cleaning and grinding plate, and a layer of grinding particle coating is electroplated on the inner surface of the cleaning and grinding groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention adds waste plastics into the crushing bin from the feed port, and the waste plastics pass through and fall from the fixed knife frame. Before adding the waste plastics, the reciprocating motor is powered on and started to drive the driving shaft and the reciprocating gear to rotate, so that the reciprocating gear drives the transmission gear plate to rotate. When the transmission gear plate rotates, the reciprocating connecting rod is driven to slide back and forth through the driving connecting rod, so that two staggered shearing knife frames reciprocate between two upper and lower adjacent fixed knife frames. The two shearing knife frames shear and crush the waste plastics passing through the fixed knife frames. The shearing action and shearing force of the shearing knife frames during movement can completely crush soft waste plastics such as scrap belts and rubber strips, shorten the time required for crushing the waste plastics, reduce the number of repeated crushing operations, simplify the crushing process, and improve the crushing efficiency of the waste plastics.

[0019] 2. The present invention installs a rotating cleaning and grinding plate that can rotate after being subjected to force on the inner side of the installation groove, and an elastic reset rod and a reset spring are installed below the rotating cleaning and grinding plate. The reset rod and the reset spring are used to support the position of the rotating cleaning and grinding plate, so that the rotating cleaning and grinding plate can be rotated and reset after being rotated downward, and the inner surface of the cleaning and grinding groove at the end of the rotating cleaning and grinding plate is electroplated with a grinding particle coating, and the grinding particle coating is used to grind the cutting edge of the crushing tooth that rotates into the cleaning and grinding groove. At the same time, the plastic material attached to the surface of the crushing tooth is removed by the friction between the crushing tooth and the grinding particle coating, thereby ensuring the sharpness and cleanliness of the cutting edge of the crushing tooth, and avoiding the plastic material from adhering to the crushing tooth, which causes the sharpness of the crushing tooth to decrease, thereby reducing the crushing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural cross-sectional view of the shell of the crushing device of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the plastic reciprocating shearing device of the present invention;

[0023] Figure 4 This is a connection structure diagram of the driving shaft and the reciprocating gear of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the driving connecting rod of the present invention;

[0025] Figure 6 It is a schematic diagram of the connection structure of the shearing knife frame and the fixed knife frame of the present invention;

[0026] Figure 7 It is a structural schematic diagram of a fixed knife frame of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the shearing knife frame of the present invention;

[0028] Fig. 9 It is a schematic cross-sectional view of a crushing roller of the present invention;

[0029] Fig.10 for Fig. 9 A magnified view of the structure at center A;

[0030] Fig.11 It is a schematic structural diagram of the rotary cleaning and polishing plate of the present invention.

[0031] In the figure: 1, fixed support seat; 2, crushing device housing; 3, feed port; 4, crushing motor; 5, plastic reciprocating shear; 501, reciprocating motor; 502, driving shaft; 503, reciprocating gear; 504, transmission gear plate; 505, reciprocating connecting rod; 506, shearing knife frame; 5061, connecting side strip; 5062, shearing knife strip; 5063, shearing blade; 507, fixed knife frame; 5071, fixed side strip; 5072, fixed knife strip; 5073, matching blade; 508, fixed sheet; 50 9. Driving connecting rod; 510. Supporting short shaft; 511. Supporting plate; 512. Positioning plate; 513. Connecting short shaft; 6. Crushing roller cleaning and grinding structure; 601. Rotating cleaning and grinding plate; 602. Positioning rod; 603. Reset rod; 604. Reset spring; 605. Reset plate; 606. Cleaning and grinding groove; 607. Grinding particle coating; 608. Positioning hole; 7. Crushing gear; 8. Transmission gear; 9. Crushing drive shaft; 10. Crushing roller; 11. Crushing teeth; 12. Crushing bin; 13. Mounting groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] The reciprocating motor (model HEM-17D2416-05LC) and the crushing motor (model ZD6) mentioned in the present invention can be purchased from the market or obtained by private customization.

[0034] like Figures 1 to 6 As shown, a waste plastic recycling and crushing device is provided, wherein a crushing device shell 2 is fixed to the upper surface of a fixed support seat 1, a crushing device shell 12 is provided inside the crushing device shell 2, and a feed port 3 is provided at the top of the crushing bin 12.

[0035] A plastic reciprocating shear 5 is installed on the inner side of the crushing bin 12. The plastic reciprocating shear 5 includes a plurality of fixed knife frames 507 that are evenly spaced up and down. Fixed plates 508 are fixed on both sides of the fixed knife frames 507. One side of the fixed plates 508 is fixed to the inner wall of the crushing bin 12. Two shear knife frames 506 are slidably installed between every two upper and lower adjacent fixed knife frames 507. The two shear knife frames 506 are staggered up and down. The shear knife frames 506 are slidably connected to the fitted fixed knife frames 507. A reciprocating connecting rod 505 is fixed on one side of the shear knife frame 506. One end of the reciprocating connecting rod 505 passes through the inner wall of the crushing bin 12 and is slidably inserted into the fixed support seat 1. A driving connecting rod 509 is installed above the end of the reciprocating connecting rod 505 located inside the fixed support seat 1. A transmission gear plate 504 is installed below the end of the reciprocating connecting rod 505 connected to the driving connecting rod 509. The two end portions of 9 are rotatably plugged with connecting short shafts 513, and the bottom ends of the two connecting short shafts 513 are rotatably connected with the transmission gear plate 504 and the reciprocating connecting rod 505 respectively. The outer side of the transmission gear plate 504 is meshed with a reciprocating gear 503, and the inside of the reciprocating gear 503 is penetrated and fixed with a driving shaft 502. The bottom end of the driving shaft 502 is connected with a reciprocating motor 501 through a fixing pin. The reciprocating motor 501 is fixed inside the fixed support seat 1. After the reciprocating motor 501 is powered on and started, it drives the driving shaft 502 and the reciprocating gear 503 to rotate, so that the reciprocating gear 503 drives the transmission gear plate 504 to rotate. When the transmission gear plate 504 rotates, the reciprocating connecting rod 505 is driven to slide back and forth through the driving connecting rod 509, so that the two staggered shearing knife frames 506 reciprocate between the two upper and lower adjacent fixed knife frames 507 to shear and crush the waste and scraps.

[0036] A supporting short shaft 510 is rotatably inserted in the middle of the transmission gear disk 504, and a supporting plate 511 is installed at the bottom end of the supporting short shaft 510, one end of the supporting plate 511 is fixed to the inner wall of the fixed support seat 1, and a positioning plate 512 is sleeved on the outer side of the driving shaft 502, and the driving shaft 502 is rotatably connected to the positioning plate 512, and one end of the positioning plate 512 is fixed to the inner wall of the fixed support seat 1, and the transmission gear disk 504 is supported by the supporting plate 511 and the supporting short shaft 510 to ensure that the transmission gear disk 504 cannot move without affecting the rotation, and the driving shaft 502 is positioned by the positioning plate 512 to avoid the driving shaft 502 being offset and causing the reciprocating gear 503 and the transmission gear disk 504 to be unable to mesh.

[0037] like Figure 7 and Figure 8As shown, the fixed blade frame 507 includes two symmetrical fixed side strips 5071, the fixed side strips 5071 are fixed to the fixed sheet 508, and a fixed blade strip 5072 is fixed between the two end portions of the two fixed side strips 5071. Two matching blades 5073 are provided on both sides of the fixed blade strip 5072. The two matching blades 5073 located on the same side of the fixed blade strip 5072 are V-shaped, and the inclination angle of the blade surface of the matching blade 5073 is 15 degrees. The shearing blade frame 506 includes two symmetrical connecting side strips 5061, and the connecting side strips 5061 are fixed to one end of the reciprocating connecting rod 505. The two A shearing strip 5062 is fixed between the two end portions of the connecting edge strip 5061, and two shearing blades 5063 are provided on both sides of the shearing strip 5062. The two shearing blades 5063 located on the same side of the shearing strip 5062 are V-shaped and the inclination angle of the blade surface of the shearing blade 5063 is thirty degrees. The shearing blade 5063 with four blade surfaces generates a shearing motion when moving and interlacing with the matching blade 5073 or another shearing blade 5063, thereby realizing the crushing, shearing and pulverizing of waste plastics such as plastic bags and rubber strips passing through the fixed blade frame 507 and the shearing blade frame 506.

[0038] Figure 1 and Figure 2 and Fig. 9 As shown, a crushing motor 4 is also fixed to the upper surface of the fixed support seat 1, and two symmetrically distributed crushing rollers 10 are installed on the inner side of the bottom end of the crushing bin 12. Crushing teeth 11 are fixed to the outer surface of the crushing roller 10. A crushing drive shaft 9 is fixed to the inside of the crushing roller 10, and both ends of the crushing drive shaft 9 are connected to the fixed support seat 1 through roller bearings. A crushing gear 7 is fixed to the end of the output shaft of the crushing motor 4, and the ends of the two crushing drive shafts 9 close to the crushing gear 7 penetrate the fixed support seat 1, and a transmission gear 8 is fixed to the outer side of the end of the crushing drive shaft 9 penetrating the fixed support seat 1, and the two transmission gears 8 are meshed with each other, one of which is located above the crushing gear 7 and meshed with the crushing gear 7. The crushing motor 4 drives the crushing gear 7 to rotate the two transmission gears 8, so that the transmission gear 8 drives the crushing roller 10 and the crushing teeth 11 to rotate through the crushing drive shaft 9, and the waste plastics sheared and crushed by the shearing knife frame 506 and the fixed knife frame 507 are finely crushed again, ensuring that the waste plastics are completely crushed without the need for crushing again or multiple times, thereby shortening the crushing time.

[0039] like Fig.10 and Fig.11As shown, the inner wall of the bottom end of the crushing bin 12 is provided with a plurality of mounting grooves 13, and a crushing roller cleaning and grinding structure 6 is installed on the inner side of the mounting groove 13. The crushing roller cleaning and grinding structure 6 includes a reset rod 603, which is inclined at a forty-five degree angle and slidably inserted into the inner side of the mounting groove 13. A reset plate 605 is fixed to the outer side of the top end of the reset rod 603, and a reset spring 604 is fixedly installed between the reset plate 605 and the inner wall of the mounting groove 13. The reset spring 604 is sleeved on the outer side of the reset rod 603, and the reset spring 604 is used to limit the position of the reset rod 603 fixed with the reset plate 605, so that the top end of the reset rod 603 is always at the same height.

[0040] A rotating cleaning and grinding plate 601 is installed above the reset rod 603, one end of the rotating cleaning and grinding plate 601 is tilted downward, and the other end of the rotating cleaning and grinding plate 601 is rotatably connected to the inner wall of the mounting groove 13, and a positioning hole 608 is provided at the end of the rotating cleaning and grinding plate 601 connected to the mounting groove 13, and a positioning rod 602 is rotatably inserted inside the positioning hole 608, and both ends of the positioning rod 602 are rotatably inserted into the inner wall of the mounting groove 13, and the rotating cleaning and grinding plate 601 is rotatably connected to the mounting groove 13 through the positioning rod 602, so that when the rotating cleaning and grinding plate 601 contacts the rotating crushing tooth 11, the rotating cleaning and grinding plate 601 can rotate around the axis of the positioning rod 602 without affecting the normal rotation of the crushing tooth 11.

[0041] A cleaning and grinding groove 606 is provided on the upper surface of the inclined end of the rotating cleaning and grinding plate 601, and a layer of grinding particle coating 607 is electroplated on the inner surface of the cleaning and grinding groove 606. The grinding particle coating 607 is used to grind the cutting edge of the crushing tooth 11 that rotates and enters the cleaning and grinding groove 606. When the crushing tooth 11 rotates into the inner side of the cleaning and grinding groove 606 and rubs against the grinding particle coating 607, the plastic attachments attached to the surface of the crushing tooth 11 can be removed, thereby ensuring the sharpness of the cutting edge of the crushing tooth 11.

[0042] Working principle: First, turn on the power of the device. The power is turned on and the crushing motor 4 is powered on to start and drive the crushing gear 7 to rotate clockwise. When the crushing gear 7 rotates, it drives another transmission gear 8 to rotate through the transmission gear 8, so that the two transmission gears 8 drive the crushing drive shaft 9 and the crushing roller 10 to rotate in opposite directions. The crushing teeth 11 on the outer sides of the two crushing rollers 10 rotate toward the middle of the two crushing rollers 10 and pass alternately. At the same time, the reciprocating motor 501 is powered on and started. After the reciprocating motor 501 is powered on, it drives the driving shaft 502 to rotate, so that the driving shaft 502 drives the The reciprocating gear 503 rotates to rotate the transmission gear plate 504. When the transmission gear plate 504 rotates, it drives one end of the driving connecting rod 509 to make a circular motion around the axis of the supporting short shaft 510. At this time, the other end of the driving connecting rod 509 drives the reciprocating connecting rod 505 to slide back and forth. The reciprocating connecting rod 505 in the reciprocating sliding pulls the shearing knife frame 506 to move back and forth between the two upper and lower adjacent fixed knife frames 507. At the same time, the two shearing knife frames 506 located between the two upper and lower adjacent fixed knife frames 507 pass each other at the same time.

[0043] At this time, waste plastics are added to the crushing bin 12 through the feed port 3. After the waste plastics enter the crushing bin 12, they fall from the middle of the fixed knife frame 507 to the bottom of the crushing bin 12. When the waste plastics pass through the fixed knife frame 507, they are pushed or squeezed by the two shear knife frames 506 that are interlaced inside the upper and lower adjacent fixed knife frames 507. The two shear blades 5063 generate shear force when they are interlaced with each other or when the shear blades 5063 and the matching blades 5073 are interlaced, so as to shear and crush or pulverize the waste plastics falling from the fixed knife frame 507, and can well crush soft waste plastics such as scrap belts, rubber strips, and light strips.

[0044] The waste plastics that are sheared, crushed or pulverized by the shearing knife frame 506 and the fixed knife frame 507 finally leave the fixed knife frame 507 and reach the bottom of the crushing bin 12. The waste plastics that reach the bottom of the crushing bin 12 fall between the two rotating crushing rollers 10, and are squeezed and crushed again by the crushing teeth 11 on the outer surfaces of the two crushing rollers 10 toward the middle of the two crushing rollers 10. When the crushing teeth 11 rotate and crush the waste plastics, when the crushing teeth 11 contact the rotating cleaning grinding plate 601, the rotating cleaning grinding plate 601 can rotate around the axis of the positioning rod 602 without affecting the normal operation of the crushing teeth 11. The waste plastics that are finally crushed leave the crushing bin 12 and are collected, thereby shortening the time required for crushing the waste plastics, reducing the number of repeated crushing operations, and simplifying the crushing process.

[0045] After the device has been running for a period of time, when plastic material adheres to the outer surface of the crushing tooth 11, causing the sharpness of the cutting edge of the crushing tooth 11 to decrease and the crushing efficiency to decrease, the crushing motor 4 is powered on and started, and the output shaft rotates in the opposite direction, so that the crushing gear 7 drives the transmission gear 8, the crushing drive shaft 9 and the crushing roller 10 to rotate in the opposite direction, so that the crushing tooth 11 rotates from the top to the bottom of the rotating cleaning grinding plate 601, and the crushing tooth 11 enters the inner side of the cleaning grinding groove 606 during rotation and rubs against the grinding particle coating 607 on the inner surface of the cleaning grinding groove 606, and the grinding particle coating 607 grinds the cutting edge of the crushing tooth 11 and cleans the plastic material adhered to the crushing tooth 11. At the same time, the rotating cleaning grinding plate 601 rotates downward around the axis of the positioning rod 602, and the rotating cleaning grinding plate 601 presses the reset rod 603 downward, so that the reset spring 604 is compressed. After the crushing tooth 11 leaves the cleaning grinding groove 606, the reset spring 604 elastically recovers and drives the top of the reset rod 603 and the rotating cleaning grinding plate 601 to reset, so that the rotating cleaning grinding plate 601 continues to grind and clean the surface of the next crushing tooth 11, ensuring the sharpness and cleanliness of the cutting edge of the crushing tooth 11, and preventing plastic matter from adhering to the crushing tooth 11, resulting in a decrease in the sharpness of the crushing tooth 11, thereby reducing the crushing efficiency of the device.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A waste plastic recycling and crushing device, comprising a fixed support seat (1), characterized in that: A crushing device housing (2) is fixed to the upper surface of the fixed support seat (1), a crushing chamber (12) is provided inside the crushing device housing (2), a feed inlet (3) is provided at the top of the crushing chamber (12), and a plastic reciprocating shear (5) is installed inside the crushing chamber (12); The plastic reciprocating shear (5) comprises a plurality of fixed blade frames (507) which are evenly spaced vertically. Fixed plates (508) are fixed on both sides of the fixed blade frames (507). One side of the fixed plates (508) is fixed to the inner wall of the crushing bin (12). Two shear blade frames (506) are slidably mounted between each two vertically adjacent fixed blade frames (507). The two shear blade frames (506) are staggered vertically. The shear blade frames (506) are slidably connected to the fitted fixed blade frames (507). A reciprocating connecting rod (505) is fixed on one side of the shear blade frame (506). One end of the reciprocating connecting rod (505) passes through the inner wall of the crushing bin (12) and is slidably inserted into the fixed support seat (1). The reciprocating connecting rod (505) is located at the fixed support seat (1). A driving connecting rod (509) is installed above the end inside the support seat (1), and a transmission gear plate (504) is installed below the end of the reciprocating connecting rod (505) connected to the driving connecting rod (509). Both end portions of the driving connecting rod (509) are rotatably plugged with connecting short shafts (513), and the bottom ends of the two connecting short shafts (513) are rotatably connected to the driving gear plate (504) and the reciprocating connecting rod (505) respectively. The outer side of the driving gear plate (504) is meshingly connected with a reciprocating gear (503), and a driving shaft (502) is fixedly passed through the inside of the reciprocating gear (503). The bottom end of the driving shaft (502) is connected to a reciprocating motor (501) via a fixing pin, and the reciprocating motor (501) is fixed inside the fixed support seat (1); A crushing motor (4) is also fixed to the upper surface of the fixed support seat (1), two symmetrically distributed crushing rollers (10) are installed on the inner side of the bottom end of the crushing bin (12), crushing teeth (11) are fixed to the outer surface of the crushing roller (10), a crushing drive shaft (9) is fixed through the inside of the crushing roller (10), and both ends of the crushing drive shaft (9) are connected to the fixed support seat (1) via roller bearings; A crushing gear (7) is fixed to the end of the output shaft of the crushing motor (4); the ends of the two crushing drive shafts (9) close to the crushing gear (7) penetrate the fixed support seat (1); and a transmission gear (8) is fixed to the outside of the ends of the crushing drive shafts (9) penetrating the fixed support seat (1); the two transmission gears (8) are meshed with each other, and one of the transmission gears (8) is located above the crushing gear (7) and meshes with the crushing gear (7); A plurality of mounting grooves (13) are provided on the inner wall of the bottom end of the crushing bin (12); a crushing roller cleaning and grinding structure (6) is installed on the inner side of the mounting groove (13); the crushing roller cleaning and grinding structure (6) comprises a reset rod (603); the reset rod (603) is inclined at a forty-five degree angle and is slidably inserted into the inner side of the mounting groove (13); a reset plate (605) is fixed on the outer side of the top end of the reset rod (603); a reset spring (604) is fixedly installed between the reset plate (605) and the inner wall of the mounting groove (13); the reset spring (604) is sleeved on the outer side of the reset rod (603); A rotating cleaning and polishing plate (601) is installed above the reset rod (603), one end of the rotating cleaning and polishing plate (601) is tilted downward, and the other end of the rotating cleaning and polishing plate (601) is rotatably connected to the inner wall of the installation groove (13); The end of the rotating cleaning and polishing plate (601) connected to the mounting groove (13) is penetrated by a positioning hole (608), a positioning rod (602) is rotatably inserted inside the positioning hole (608), and both ends of the positioning rod (602) are rotatably inserted into the inner wall of the mounting groove (13).

2. The waste plastic recycling and crushing device according to claim 1 is characterized by: The fixed blade frame (507) comprises two symmetrical fixed side strips (5071), the fixed side strips (5071) being fixed to the fixed sheet (508), a fixed blade strip (5072) being fixed between the two end portions of the two fixed side strips (5071), two matching blades (5073) being provided on both sides of the fixed blade strip (5072), the two matching blades (5073) being located on the same side of the fixed blade strip (5072) being V-shaped, and the inclination angle of the blade surface of the matching blade (5073) being fifteen degrees.

3. The waste plastic recycling and crushing device according to claim 1 is characterized by: The shearing blade frame (506) comprises two symmetrical connecting side strips (5061), wherein the connecting side strips (5061) are fixed to one end of the reciprocating connecting rod (505), and a shearing blade (5062) is fixed between the two end portions of the two connecting side strips (5061), and two shearing blades (5063) are provided on both sides of the shearing blade (5062), and the two shearing blades (5063) located on the same side of the shearing blade (5062) are V-shaped, and the inclination angle of the blade surface of the shearing blade (5063) is thirty degrees.

4. The waste plastic recycling and crushing device according to claim 1 is characterized in that: A supporting short shaft (510) is rotatably inserted in the middle of the transmission gear disc (504); a supporting plate (511) is installed at the bottom end of the supporting short shaft (510); one end of the supporting plate (511) is fixed to the inner wall of the fixed support seat (1); a positioning plate (512) is sleeved on the outer side of the driving shaft (502); the driving shaft (502) is rotatably connected to the positioning plate (512); one end of the positioning plate (512) is fixed to the inner wall of the fixed support seat (1).

5. The waste plastic recycling and crushing device according to claim 1 is characterized by: A cleaning and grinding groove (606) is provided on the upper surface of the inclined end of the rotating cleaning and grinding plate (601), and a layer of grinding particle coating (607) is electroplated on the inner surface of the cleaning and grinding groove (606).

Images