PVC film waste crushing and melting device

Abstract

The invention relates to the technical field of PVC film waste crushing treatment, in particular to a PVC film waste crushing and melting device. The invention provides a PVC film waste crushing and melting device which comprises a support, a melting furnace, a melter, a separation filter plate, a crushing shell and the like, the left side of the support is fixedly connected with the melting furnace, the top of the melting furnace is provided with the melter, the separation filter plate is installed in the melting furnace, and the crushing shell is installed in the support. The two sets of crushing rollers rotate reversely through meshing of the straight gears, efficient shearing force is formed, waste is crushed rapidly, the roller surfaces are cleaned in real time through the scraping plates, material adhesion is avoided, the stable crushing efficiency is ensured, under linkage of the rotating disc and the hydraulic cylinder structure, the cutter is driven to cut large waste in a reciprocating mode, the large waste is prevented from being clamped on the crushing rollers, and the crushing efficiency is improved. And the problems of roller tooth gap blockage and winding are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of PVC film waste crushing and processing, in particular to a PVC film waste crushing and melting device. Background Art

[0002] During the PVC film production process, process limitations in raw material cutting and scrap recycling generate a large amount of irregular, large scrap or rolls of waste film. PVC film waste is flexible and bulky. Directly feeding this waste into traditional crushing and melting systems often results in incomplete crushing due to insufficient shear force on the crushing rollers. Incompletely crushed fragments (especially rolls of waste film) can easily become entangled on the crushing rollers, blocking the gaps between the roller teeth and reducing crushing efficiency. Furthermore, the entangled debris increases the equipment load, causing motor overheating and even shutdown, seriously impacting continuous production.

[0003] Currently, to address the above problems, the industry mostly uses pre-cutting or manual sorting to reduce the size of waste, but the cost of manual intervention is high and there are safety hazards; some equipment has added pre-shredder groups, but the structure is complex and the cutting force is insufficient, and it is still difficult to avoid the problems of roller tooth gap blockage and entanglement.

[0004] Therefore, it is urgent to develop a PVC film waste crushing and melting device to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention provides a PVC film waste crushing and melting device.

[0006] The technical solution is: a PVC film waste crushing and melting device, including a bracket, a melting furnace, a melter, a partition filter plate, a crushing shell, a crushing motor, a crushing roller, a spur gear, a conveying pipe, a rotating disk, a connecting rod, a push rod, a hydraulic cylinder, a piston rod, a push rod, a fixed rod, a rotating frame and a cutter. The left side of the bracket is fixedly connected to the melting furnace, the top of the melting furnace is installed with a melter, the interior of the melting furnace is installed with a partition filter plate, the interior of the bracket is installed with a crushing shell, the rear side of the crushing shell is installed with a crushing motor, a crushing roller is installed on the output shaft of the crushing motor, and another crushing roller is rotatably installed inside the crushing shell. The two crushing rollers are fixedly connected with spur gears, the two spur gears mesh with each other, and the crushing shell and the melting furnace are connected by The conveying pipes are connected and interconnected. A rotating disk is fixedly installed at the front end of the left crushing roller, and a connecting rod is fixedly installed at the eccentric part of the rotating disk. The front end of the connecting rod is rotatably connected to a push rod. A hydraulic cylinder is installed on the front side of the crushing shell, and a piston rod is slidably installed inside the hydraulic cylinder. The push rod is inserted into the interior of the hydraulic cylinder, and a push rod is slidably connected to the upper part of the piston rod. A fixed rod is fixedly installed on the upper front side of the crushing shell, and a rotating frame is rotatably connected on the fixed rod. The push rod is in sliding contact with the right bottom side of the rotating frame, and cutters are slidably installed on both sides of the rotating frame. Guide slide rails are fixedly connected on the left and right sides of the upper rear side of the crushing shell, and the two cutters slide on the corresponding guide slide rails. Tension springs are fixedly connected between the two cutters and the corresponding guide slide rails.

[0007] Furthermore, it also includes a scraper. Two scrapers are fixedly installed inside the pulverizing shell, and the two scrapers are both located below the corresponding pulverizing rollers.

[0008] Furthermore, it also includes a fixed seat, a wedge rod, a return spring and a screen. The fixed seat is fixedly installed on the lower front side of the crushing shell, and the wedge rod is slidably connected to the fixed seat. When the rotating disk rotates, the wedge rod is intermittently squeezed downward. A return spring is connected between the wedge rod and the fixed seat. The lower part of the crushing shell is rotatably connected to the screen. The screen is located below the two crushing rollers, and the front side of the screen is slidably connected to the lower part of the wedge rod.

[0009] Furthermore, it also includes a servo motor and a screw conveying rod. The servo motor is fixedly installed at the lower part of the crushing shell, and the screw conveying rod is fixedly installed on the output shaft of the servo motor. The screw conveying rod is located below the screen and inside the conveying pipe.

[0010] Furthermore, it also includes a connecting rod, a push rod, a hydraulic cylinder, a piston rod, a push rod, a fixed rod, a rotating frame, a cutter, a guide slide, a tension spring, a full gear, a pulley, a flat belt, a rotating shaft, a conveyor belt, a reflux box, a torsion spring, a top block, a receiving plate, an inclined plate, a guide frame, a first spring, a guide rod, a limit rod and a second spring. The front end of the right crushing roller is fixedly installed with a full gear, and the upper front part of the crushing shell is rotatably installed with a pulley. The pulley is located on the right side of the full gear, and another full gear is fixedly installed on the pulley. The two full gears are meshed with each other. The lower right side of the bracket is rotatably connected to the rotating shaft, and another pulley is fixedly installed at the front end of the rotating shaft. The two pulleys are driven by a flat belt, and another one is also rotatably installed on the upper right side of the bracket. A rotating shaft, a conveyor belt is wound around the two rotating shafts, and multiple reflux boxes are installed on the conveyor belt for rotation at even intervals. A torsion spring is connected between each reflux box and the conveyor belt, and a top block is fixedly installed on the front and rear sides of each reflux box. A receiving plate is slidably installed on the top of the crushing shell, and the top of the receiving plate is inclined in a shape of lower left and higher right. Inclined plates are fixedly connected on the front and rear sides of the receiving plate, and guide frames are fixedly installed on the front and rear sides of the upper part of the crushing shell, and the receiving plate is slidably connected to the guide frame. A first spring is connected between the receiving plate and the guide rod, and guide rods are fixedly installed on both sides of the right side of the top of the bracket. A limit rod is slidably connected between the two guide rods. When the reflux box moves up, it will contact the limit rod, and a second spring is fixedly connected between the limit rod and the corresponding guide rod.

[0011] Furthermore, it also includes a mixing motor and a stirring rod. The mixing motor is fixedly installed on the right side of the melting furnace, and the stirring rod is fixedly installed on the output shaft of the mixing motor. The stirring rod is located inside the melting furnace.

[0012] Furthermore, a conveyor is also included, and the conveyor is fixedly installed on the left side of the top of the bracket 1.

[0013] Furthermore, the elastic strength of the torsion spring is greater than the elastic strength of the first spring, and the elastic strength of the second spring is greater than the elastic strength of the torsion spring.

[0014] The beneficial effects are: 1. The two sets of crushing rollers of the present invention rotate in opposite directions through the meshing of spur gears to form a high-efficiency shear force, quickly crushing waste materials, and the scraper cleans the roller surface in real time to avoid material adhesion, ensuring stable crushing efficiency, and under the linkage of the rotating disk and the hydraulic cylinder structure, the cutter is driven to reciprocate and cut large pieces of waste materials, preventing large pieces of waste from getting stuck on the crushing rollers, and avoiding the problems of clogging and winding of the roller tooth gap.

[0015] 2. The rotating disk of the present invention drives the screen to rotate and vibrate periodically through the wedge-shaped rod, and combines with the reset spring to quickly reset, so as to achieve efficient screening. The spiral conveying rod accurately transports qualified scraps to the melting furnace, reducing manual intervention. The conveyor belt and the reflux box are driven by all gears and flat belts, and the large pieces of waste intercepted by the screen are automatically transported back to the cutting area for secondary processing and cutting, thereby improving the thoroughness of waste crushing.

[0016] 3. The reflux box of the present invention realizes automatic dumping through the top block, the limit rod and the torsion spring, and combined with the guide of the receiving plate, ensures that the waste materials that do not meet the standards are returned to the crushing process to avoid waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the melting furnace, melter and partition filter plate of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the melting furnace, crushing shell and conveying pipe of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the crushing motor, crushing roller and spur gear of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the crushing roller, spur gear and scraper of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating disk, the fixing seat and the wedge rod of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing seat, wedge-shaped rod and return spring of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the wedge rod, return spring and screen of the present invention.

[0025] Figure 9 It is a schematic three-dimensional cross-sectional view of the connecting rod, push rod and hydraulic cylinder body of the present invention.

[0026] Figure 10 It is a schematic diagram of the three-dimensional structure of the piston rod, the push rod and the fixed rod of the present invention.

[0027] Figure 11 It is a schematic diagram of the three-dimensional structure of the fixed rod, rotating frame and cutter of the present invention.

[0028] Figure 12 It is a schematic diagram of the three-dimensional structure of the full gear, pulley and flat belt of the present invention.

[0029] Figure 13 It is a schematic diagram of the three-dimensional structure of the rotating shaft, conveyor belt and reflow box of the present invention.

[0030] Figure 14 It is a schematic diagram of the three-dimensional structure of the reflow box, torsion spring and top block of the present invention.

[0031] Figure 15 It is a schematic diagram of the three-dimensional structure of the receiving plate, inclined plate and guide frame of the present invention.

[0032] Figure 16 It is a schematic diagram of the three-dimensional structure of the separation filter plate, mixing motor and stirring rod of the present invention.

[0033] Figure 17 It is a schematic diagram of the three-dimensional structure of the bracket, crushing shell and conveyor of the present invention.

[0034] Figure numerals: 1 bracket, 2 melting furnace, 3 melter, 4 partition filter plate, 5 crushing shell, 6 crushing motor, 7 crushing roller, 8 spur gear, 9 scraper, 10 conveying pipe, 11 rotating disk, 12 fixed seat, 13 wedge rod, 14 return spring, 15 screen, 16 servo motor, 17 spiral conveying rod, 18 connecting rod, 19 push rod, 20 hydraulic cylinder, 21 piston rod, 22 push rod, 23 fixed rod, 24 rotating frame, 25 cutter, 26 guide rail, 27 tension spring, 28 full gear, 29 pulley, 30 flat belt, 31 rotating shaft, 32 conveyor belt, 33 reflux box, 34 torsion spring, 35 push block, 36 receiving plate, 37 tilting plate, 38 guide frame, 39 first spring, 40 guide rod, 41 limit rod, 42 second spring, 43 mixing motor, 44 stirring rod, 45 conveyor. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings.

[0036] Example: A PVC film waste crushing and melting device, such as Figures 1-11As shown, it includes a bracket 1, a melting furnace 2, a melter 3, a partition filter plate 4, a pulverizing shell 5, a pulverizing motor 6, a pulverizing roller 7, a spur gear 8, a conveying pipe 10, a rotating disk 11, a connecting rod 18, a push rod 19, a hydraulic cylinder 20, a piston rod 21, a push rod 22, a fixing rod 23, a rotating frame 24 and a cutter 25. The left side of the bracket 1 is fixedly connected to the melting furnace 2 by bolts, and the top front side of the melting furnace 2 is fixedly installed with a melter 3 for heating and melting the PVC film waste. The middle part of the melting furnace 2 is fixedly installed with a partition filter plate 4 for blocking the unmelted PVC film waste. The middle part of the bracket 1 is fixedly installed with a pulverizing shell 5, the rear side of the pulverizing shell 5 is fixedly installed with a pulverizing motor 6, and the output shaft of the pulverizing motor 6 is fixedly installed with a pulverizing roller 7. Another pulverizing roller 7 is rotatably installed on the right side of the pulverizing shell 5. The rear sides of the two pulverizing rollers 7 are fixedly connected with spur gears 8, and the two spur gears 8 are meshed with each other. The pulverizing shell 5 and the melting furnace 2 are connected by a conveying pipe 10. The front end of the left crushing roller 7 is fixedly installed with a rotating disk 11, and a connecting rod 18 is fixedly installed at the eccentric part of the rotating disk 11. The front end of the connecting rod 18 is rotatably connected to a push rod 19. A hydraulic cylinder 20 is fixedly installed on the upper front side of the crushing shell 5. A piston rod 21 is slidably installed on the upper part of the hydraulic cylinder 20. The push rod 19 is inserted into the interior of the hydraulic cylinder 20. The hydraulic cylinder 20 is filled with hydraulic oil. The upper part of the piston rod 21 is slidably connected to the push rod 22. The upper front side of the crushing shell 5 is fixed A fixed rod 23 is installed, and a rotating frame 24 is rotatably connected to the fixed rod 23. The top rod 22 is in sliding contact with the right side of the bottom of the rotating frame 24. Cutter knives 25 are slidably installed on both sides of the rotating frame 24. The two cutters 25 are slidably connected to the upper part of the pulverizing shell 5. Guide rails 26 are fixedly connected to the left and right sides of the upper rear side of the pulverizing shell 5. The two cutters 25 slide on the corresponding guide rails 26. Tension springs 27 are fixedly connected between the two cutters 25 and the corresponding guide rails 26.

[0037] like Figure 5 As shown, a scraper 9 is also included. Two scrapers 9 are fixedly installed inside the pulverizing shell 5 , and both scrapers 9 are located below the corresponding pulverizing rollers 7 .

[0038] like Figure 17 As shown, a conveyor 45 is also included, and the conveyor 45 is fixedly installed on the left side of the top of the bracket 1.

[0039] When PVC film waste needs to be recycled and processed, this device can be used for processing. First, start the conveyor 45 to transport the PVC film waste to the inside of the crushing shell 5, and then start the crushing motor 6 to drive the left crushing roller 7 to rotate. The meshing relationship between the two spur gears 8 on the rear side drives the right crushing roller 7 to rotate in the opposite direction. The tooth structures on the surfaces of the two sets of crushing rollers 7 shear and crush the waste. During the crushing process, the scraper 9 continuously scrapes off the debris attached to the surface of the crushing roller 7 to prevent the debris from sticking or winding around the crushing roller 7. During the crushing process, the rotating disk 11 at the front end of the left crushing roller 7 rotates with the crushing roller 7, and the connecting rod 18 connected at its eccentric point pushes the push rod 19 to reciprocate up and down. The push rod 19 is inserted into the hydraulic cylinder 20 and squeezes the hydraulic oil, driving the piston rod 21 to drive the push rod 22 upward The push rod 22 is lifted, and after contacting the right side of the bottom of the rotating frame 24, the rotating frame 24 is forced to rotate around the fixed rod 23, and then the rotating frame 24 pulls the cutters 25 on the left and right sides to slide along the guide slide rails 26 to the middle, and the large pieces of PVC film waste transmitted by the conveyor 45 are cut for the first time. After the cutting is completed, the push rod 19 moves downward under the pulling action of the connecting rod 18, and the push rod 19 extracts the hydraulic oil inside the hydraulic cylinder 20, thereby forcing the piston rod 21 to drive the push rod 22 to move downward, and the push rod 22 no longer pushes the rotating frame 24, and the tension spring 27 will also reset to make the cutter 25 move to its original position, and then the cutter 25 pushes the rotating frame 24 to reverse to its original position, and so on. The cutter 25 continuously cuts the PVC film waste to prevent large pieces of PVC film waste from affecting the subsequent crushing work of the crushing roller 7.

[0040] like Figure 6-Figure 8 As shown, it also includes a fixed seat 12, a wedge rod 13, a return spring 14 and a screen 15. The fixed seat 12 is fixedly installed on the lower front side of the pulverizing shell 5, and the wedge rod 13 is slidably connected to the fixed seat 12. When the rotating disk 11 rotates, the wedge rod 13 is intermittently squeezed downward. A return spring 14 is connected between the wedge rod 13 and the fixed seat 12. The lower part of the pulverizing shell 5 is rotatably connected to the screen 15. The screen 15 is located below the two pulverizing rollers 7, and the front side of the screen 15 is slidably connected to the lower part of the wedge rod 13.

[0041] like Figure 8 As shown, a servo motor 16 and a screw conveying rod 17 are also included. The servo motor 16 is fixedly installed on the lower right side of the grinding shell 5, and the screw conveying rod 17 is fixedly installed on the output shaft of the servo motor 16. The screw conveying rod 17 is located below the screen 15 and inside the conveying pipe 10.

[0042] like Figures 9-15As shown, it also includes a connecting rod 18, a push rod 19, a hydraulic cylinder 20, a piston rod 21, a push rod 22, a fixed rod 23, a rotating frame 24, a cutter 25, a guide slide 26, a tension spring 27, a full gear 28, a pulley 29, a flat belt 30, a rotating shaft 31, a conveyor belt 32, a return box 33, a torsion spring 34, a top block 35, a receiving plate 36, an inclined plate 37, a guide frame 38, a first spring 39, a guide rod 40, a limit rod 41 and a second spring 42, and the front end of the right crushing roller 7 A full gear 28 is fixedly installed, and a pulley 29 is rotatably installed on the upper front side of the crushing shell 5. The pulley 29 is located on the right side of the full gear 28. Another full gear 28 is fixedly installed on the pulley 29. The two full gears 28 are meshed with each other. The lower right side of the bracket 1 is rotatably connected to a rotating shaft 31. Another pulley 29 is fixedly installed at the front end of the rotating shaft 31. The two pulleys 29 are driven by a flat belt 30. Another rotating shaft 31 is also rotatably installed on the upper right side of the bracket 1. There is a shaft 31 wound around the two rotating shafts 31. Conveyor belt 32, on which multiple reflux boxes 33 are evenly rotated and installed, each reflux box 33 is connected to the conveyor belt 32 with a torsion spring 34, and each reflux box 33 is fixedly installed with a top block 35 on both the front and rear sides. A receiving plate 36 is slidably installed on the top of the crushing shell 5, and the top of the receiving plate 36 is inclined with the left lower and the right higher. The receiving plate 36 is fixedly connected with an inclined plate 37 on both the front and rear sides. A guide frame 38 is fixedly installed on both the front and rear sides of the upper part of the crushing shell 5. The receiving plate 36 and the guide frame 38 are fixedly installed. 8 sliding connection, a first spring 39 is connected between the receiving plate 36 and the guide rod 40, and guide rods 40 are fixedly installed on the front and rear sides of the top right side of the bracket 1. A limit rod 41 is slidably connected between the two guide rods 40. When the reflux box 33 moves up, it will contact the limit rod 41. A second spring 42 is fixedly connected between the limit rod 41 and the corresponding guide rod 40. The elastic strength of the torsion spring 34 is greater than the elastic strength of the first spring 39, and the elastic strength of the second spring 42 is greater than the elastic strength of the torsion spring 34.

[0043] like Figure 16 As shown, it also includes a mixing motor 43 and a stirring rod 44. The mixing motor 43 is fixedly installed on the right side of the melting furnace 2, and the stirring rod 44 is fixedly installed on the output shaft of the mixing motor 43. The stirring rod 44 is located inside the melting furnace 2.

[0044] When the rotary disk 11 rotates, the rotary disk 11 will intermittently squeeze the wedge rod 13 downward, and then the wedge rod 13 will reset and rise under the action of the reset spring 14, thereby realizing the intermittent reciprocating lifting motion of the wedge rod 13. When the wedge rod 13 intermittently reciprocates and rises, it drives the screen 15 to rotate intermittently clockwise, thereby pushing the uncut PVC film waste fragments on the screen 15 to one side, and the screened fragments will leak onto the spiral conveying rod 17. By starting the servo motor 16 to drive the spiral conveying rod 17 to rotate, the fragments are conveyed to the melting furnace 2 through the conveying pipe 10, the melter 3 heats the fragments to a molten state, and the mixing motor 43 drives the stirring rod 44 to stir the melt homogenously. The melt is filtered through the partition filter plate 4 and flows to the next process, thereby completing the crushing and melting of the PVC film waste.

[0045] The PVC film waste fragments that have not passed through the screen 15 will enter the right side of the bracket 1 under the influence of the screen 15. When the right crushing roller 7 rotates, the right crushing roller 7 drives the front end full gear 28 to rotate, and drives the pulley 29 to rotate through the full gear 28 on the pulley 29, and then drives the rotating shaft 31 and the conveyor belt 32 to operate under the transmission of the flat belt 30. The reflux box 33 on the conveyor belt 32 moves upward, and the PVC film waste fragments that have been moved by the screen 15 are taken over during the movement. When the reflux box 33 continues to move upward and reaches the area of the inclined plate 37, the top block 35 contacts the inclined plate 37. Since the elastic strength of the torsion spring 34 is greater than the elastic strength of the first spring 39, the top block 35 will squeeze the inclined plate 37 and the receiving plate 36 to move to the left along the guide frame 38. At this time, the first spring 39 is compressed. When the reflux box 33 passes through the area of the inclined plate 37, the inclined plate 37 and the receiving plate 36 will move to the right along the guide frame 38 under the reset action of the first spring 39 and reset. When the reflux box 33 moves to the limit rod 41 Since the elastic strength of the second spring 42 is greater than the elastic strength of the torsion spring 34, the reflux box 33 will be squeezed by the limiting rod 41 and tilted toward the receiving plate 36. At this time, the torsion spring 34 is deformed, and the PVC film waste fragments contained in the reflux box 33 will also fall onto the receiving plate 36. Then, under the guidance of the receiving plate 36, they will slide back to the cutter 25 and enter the crushing roller 7 for crushing again after being cut by the cutter 25. In this way, the secondary crushing of the incompletely crushed waste is achieved, and the crushing efficiency is improved. In order to ensure the continuity and thoroughness of the process, when the reflux box 33 tilts and rotates to the limit, the reflux box 33 will squeeze the limit rod 41 and slide upward along the guide rod 40. At this time, the second spring 42 is compressed, and when the reflux box 33 continues to move through the limit rod 41, the limit rod 41 will move downward and reset under the reset action of the second spring 42. In this way, the PVC film waste that has not been completely crushed can be continuously re-transported to the cutter 25 for re-cutting and crushing under the continuous reflux transportation of the reflux box 33, thereby improving the crushing effect.

[0046] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A PVC film waste crushing and melting device, characterized in that: The invention comprises a support (1), a melting furnace (2), a melter (3), a separation filter plate (4), a crushing shell (5), a crushing motor (6), a crushing roller (7), a spur gear (8), a conveying pipe (10), a rotating disk (11), a connecting rod (18), a push rod (19), a hydraulic cylinder (20), a piston rod (21), a push rod (22), a fixed rod (23), a rotating frame (24) and a cutter (25). The left side of the support (1) is fixedly connected to the melting furnace (2), and the top of the melting furnace (2) is equipped with The melter (3) is provided with a partition filter plate (4) inside the melting furnace (2), a crushing shell (5) is provided inside the bracket (1), a crushing motor (6) is provided on the rear side of the crushing shell (5), a crushing roller (7) is provided on the output shaft of the crushing motor (6), another crushing roller (7) is provided in a rotating manner inside the crushing shell (5), and both crushing rollers (7) are fixedly connected with a spur gear (8), and the two spur gears (8) are meshed with each other. The crushing shell (5) and the melting furnace (2) are connected via a conveying pipe (10). The front end of the left crushing roller (7) is fixedly mounted with a rotating disk (11), the eccentric portion of the rotating disk (11) is fixedly mounted with a connecting rod (18), the front end of the connecting rod (18) is rotatably connected with a push rod (19), the front side of the crushing shell (5) is mounted with a hydraulic cylinder (20), the interior of the hydraulic cylinder (20) is slidably mounted with a piston rod (21), the push rod (19) is inserted into the interior of the hydraulic cylinder (20), the upper portion of the piston rod (21) is slidably connected with a push rod (22), the upper portion of the front side of the crushing shell (5) is fixedly mounted with a rotating disk (11), the eccentric portion of the rotating disk (11) is fixedly mounted with a connecting rod (18), the front end of the connecting rod (18) is rotatably connected with a push rod (19), the front side of the crushing shell (5) is fixedly mounted with a rotating disk (11), the front end of the connecting rod (18) is rotatably connected with a push rod (19), the front side of the crushing shell (5) is fixedly mounted with a rotating disk (11), the front end of the connecting rod (18) is rotatably connected with a push rod (19), the front end ... A fixed rod (23) is fixedly installed, and a rotating frame (24) is rotatably connected to the fixed rod (23). The top rod (22) is in sliding contact with the right side of the bottom of the rotating frame (24). Cutters (25) are slidably installed on both sides of the rotating frame (24). Guide rails (26) are fixedly connected to the left and right sides of the upper rear side of the crushing shell (5). The two cutters (25) slide on the corresponding guide rails (26). Tension springs (27) are fixedly connected between the two cutters (25) and the corresponding guide rails (26).

2. A PVC film waste crushing and melting device according to claim 1, characterized in that: It also includes a scraper (9). Two scrapers (9) are fixedly installed inside the pulverizing shell (5), and the two scrapers (9) are both located below the corresponding pulverizing rollers (7).

3. The PVC film waste crushing and melting device according to claim 2, characterized in that: The invention also includes a fixed seat (12), a wedge rod (13), a return spring (14) and a screen (15). The fixed seat (12) is fixedly installed at the lower front side of the pulverizing shell (5). The wedge rod (13) is slidably connected to the fixed seat (12). When the rotating disk (11) rotates, the wedge rod (13) is intermittently squeezed downward. A return spring (14) is connected between the wedge rod (13) and the fixed seat (12). The screen (15) is rotatably connected to the lower part of the pulverizing shell (5). The screen (15) is located below the two pulverizing rollers (7). The front side of the screen (15) is slidably connected to the lower part of the wedge rod (13).

4. The PVC film waste crushing and melting device according to claim 3, characterized in that: The pulverizing shell (5) further comprises a servo motor (16) and a spiral conveying rod (17). The servo motor (16) is fixedly mounted on the lower portion of the pulverizing shell (5). The spiral conveying rod (17) is fixedly mounted on the output shaft of the servo motor (16). The spiral conveying rod (17) is located below the screen (15). The spiral conveying rod (17) is located inside the conveying pipe (10).

5. The PVC film waste crushing and melting device according to claim 4, characterized in that: It also includes a connecting rod (18), a push rod (19), a hydraulic cylinder (20), a piston rod (21), a push rod (22), a fixed rod (23), a rotating frame (24), a cutter (25), a guide rail (26), a tension spring (27), a full gear (28), a pulley (29), a flat belt (30), a rotating shaft (31), a conveyor belt (32), a reflux box (33), a torsion spring (34), a top block (35), a receiving plate (36), an inclined plate (37), a guide frame (38), a first spring (39), a guide rod (40), a limit Rod (41) and second spring (42), the front end of the right crushing roller (7) is fixedly installed with a full gear (28), the upper front part of the crushing shell (5) is rotatably installed with a pulley (29), the pulley (29) is located on the right side of the full gear (28), another full gear (28) is fixedly installed on the pulley (29), the two full gears (28) are meshed with each other, the lower right part of the bracket (1) is rotatably connected with a rotating shaft (31), the front end of the rotating shaft (31) is fixedly installed with another pulley (29), the two pulleys (29) are driven by a flat belt (30), the bracket (1) is provided with a plurality of pulleys (29). Another rotating shaft (31) is also rotatably installed on the upper right side of the frame (1), and a conveyor belt (32) is wound between the two rotating shafts (31). A plurality of reflux boxes (33) are evenly spaced and rotatably installed on the conveyor belt (32). A torsion spring (34) is connected between each reflux box (33) and the conveyor belt (32). A top block (35) is fixedly installed on the front and rear sides of each reflux box (33). A receiving plate (36) is slidably installed on the top of the crushing shell (5). The top of the receiving plate (36) is inclined with the left side lower and the right side higher. The front and rear sides of the receiving plate (36) are fixedly connected with an inclined Plate (37), guide frames (38) are fixedly installed on both sides of the front and rear of the upper part of the crushing shell (5), the receiving plate (36) is slidably connected to the guide frame (38), a first spring (39) is connected between the receiving plate (36) and the guide rod (40), guide rods (40) are fixedly installed on both sides of the right side of the top of the bracket (1), and a limit rod (41) is slidably connected between the two guide rods (40). When the reflux box (33) moves upward, it will contact the limit rod (41), and a second spring (42) is fixedly connected between the limit rod (41) and the corresponding guide rod (40).

6. The PVC film waste crushing and melting device according to claim 5, characterized in that: It also includes a mixing motor (43) and a stirring rod (44). The mixing motor (43) is fixedly mounted on the right side of the melting furnace (2). The stirring rod (44) is fixedly mounted on the output shaft of the mixing motor (43). The stirring rod (44) is located inside the melting furnace (2).

7. The PVC film waste crushing and melting device according to claim 6, characterized in that: It also includes a conveyor (45), and the conveyor (45) is fixedly installed on the left side of the top of the bracket (1).

8. The PVC film waste crushing and melting device according to claim 7, characterized in that: The elastic strength of the torsion spring (34) is greater than the elastic strength of the first spring (39), and the elastic strength of the second spring (42) is greater than the elastic strength of the torsion spring (34).

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