PVC (polyvinyl chloride) film waste recycling and reprocessing device

Abstract

The invention belongs to the technical field of PVC film recycling, and discloses a PVC film waste recycling and reprocessing device which comprises a treatment bin and further comprises a crushing assembly arranged in the treatment bin and a waste recycling assembly arranged in the treatment bin. The conveying equipment is mounted at the bottom of the treatment bin; and the circulating assembly is mounted at the side part of the treatment bin. PVC film waste is injected into the treatment bin, a driving motor drives a rotating roller to rotate, a PVC film is crushed through crushing teeth, the PVC film is wound outside the rotating roller and the crushing teeth in the crushing process, and when the crushing teeth rotate to the lower end, a transmission rod is guided through a guide piece at the moment, so that a connecting piece and a cleaning piece move upwards along a transverse groove, and the PVC film is cleaned. And the cleaning piece is in contact with the side parts of the crushing teeth, so that the PVC thin film wound on the side parts of the crushing teeth is cut through the cleaning piece, the PVC thin film is prevented from being wound outside the rotating roller and the crushing teeth, and the crushing efficiency of the PVC thin film is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of PVC film recycling, and in particular relates to a PVC film waste recycling and reprocessing device. Background Art

[0002] PVC film, a polymer film made primarily from polyvinyl chloride resin, is widely used in packaging, agriculture, construction, healthcare, advertising, and industry. If PVC film is discarded or landfilled, it consumes significant land resources and remains difficult to degrade over time. Incineration can release hazardous substances (such as dioxins), posing a threat to the environment and human health. PVC film waste recycling methods include cleaning and sorting, crushing and granulation, and recycling. Currently, PVC film recycling typically utilizes crushing rollers, which typically consist of one, a pair, or multiple pairs of rotating rollers with teeth or blades. The distance and gap between the rollers can be adjusted based on the thickness and hardness of the material. Due to its flexibility and ductility, PVC film is prone to entanglement during high-speed operation of the crushing rollers. Specifically, the film becomes caught by the roller teeth and gradually accumulates, forming a tangled layer that ultimately clogs the equipment, requiring downtime for cleaning. This not only reduces the efficiency of PVC film crushing but also increases the difficulty of cleaning the crushing rollers. Therefore, a device for recycling and reprocessing PVC film waste is proposed. Summary of the Invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a PVC film waste recycling and reprocessing device, which solves the problem that the existing film is hooked by the teeth of the roller and gradually accumulates to form a winding layer, which eventually leads to equipment blockage.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a PVC film waste recycling and reprocessing device, comprising a processing chamber, and further comprising: A crushing assembly, the crushing assembly being disposed inside the processing chamber; A conveying device, the conveying device being installed at the bottom of the processing chamber; a circulation assembly, the circulation assembly being mounted on a side of the processing chamber; A transmission assembly, the transmission assembly being fixedly mounted on both sides of the processing chamber; The crushing assembly includes a rotating roller disposed inside the processing chamber, the rotating roller is provided with crushing teeth on the outside, a transverse groove is provided on the outside of the rotating roller and on the side of the crushing teeth, and a cleaning piece is movably provided inside the transverse groove; Connecting pieces are fixedly mounted on both ends of the cleaning piece, and a transmission rod is fixedly mounted on the outside of the connecting piece; The transmission assembly includes a support member fixedly mounted on the side of the processing chamber, the support member is movably sleeved on the outside of the rotating roller, and a guide member is fixedly mounted on the inner wall of the support member; The rotating roller drives the crushing teeth, the cleaning piece, the connecting piece and the transmission rod to rotate. During the rotation of the transmission rod, the cleaning piece is guided by the guide piece to move upward along the side of the crushing teeth.

[0005] Preferably, the outside of the processing chamber is equipped with a motor for driving the rotating roller; The thickness of the guide member is consistent with the length of the transmission rod, and the guide member does not contact the connecting member during the rotation of the rotating roller and the connecting member.

[0006] Preferably, the cleaning member is arranged on the side of the crushing teeth in the rotation direction, and the guide member is arranged at one end close to the circulation assembly; The rotating roller rotates with the crushing teeth, and when the crushing teeth rotate to the bottom end, the side of the crushing teeth is cleaned by the cleaning member.

[0007] Preferably, the crushing assembly further comprises a receiving frame fixedly mounted on both ends of the rotating roller, the receiving frame having a guide groove opposite to the transverse groove formed on its exterior, the connecting member sliding in the guide groove, the guide groove being filled with a protective pad, and the bottom of the transverse groove being connected to the top of the connecting member; A reset tension spring is provided between the outside of the receiving frame and the connecting piece.

[0008] Preferably, the cleaning member comprises a cleaning transverse plate fixedly mounted between the two connecting members, a second cutting knife being fixedly mounted at equal intervals on the side of the cleaning transverse plate, a first cutting knife being movably sleeved inside the transverse groove, and a vertical groove being formed on the side of the first cutting knife; The second cutting knife moves inside the vertical groove.

[0009] Preferably, a first magnet is fixedly mounted on the bottom of the first cutting blade, and a second magnet is fixedly mounted on the bottom of the transverse groove; In an initial state, the bottom of the first magnet contacts the second magnet, both ends of the top of the first cutting blade fit the periphery of the rotating roller, and the second cutting blade is kept horizontal with the top of the first cutting blade.

[0010] Preferably, the top end of the first cutting knife is in the shape of a knife edge, and the sides of the first cutting knife and the second cutting knife are in contact with the sides of the crushing teeth.

[0011] Preferably, the circulation assembly comprises a circulation channel fixedly mounted on the side of the processing chamber, and a fan is fixedly mounted at the bottom of the circulation channel; The distance between the circulation channel and the processing chamber gradually decreases from the upper and lower ends to the middle.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention injects PVC film waste into a processing bin, drives a rotating roller to rotate by a driving motor, and crushes the PVC film through crushing teeth. During the crushing process, the PVC film will be wound around the outside of the rotating roller and the crushing teeth. When the crushing teeth rotate to the lower end, the guide member guides the transmission rod, so that the connecting member and the cleaning member move upward along the transverse groove. Since the cleaning member contacts the side of the crushing teeth, the PVC film wrapped around the side of the crushing teeth is cut by the cleaning member, thereby preventing the PVC film from being wound around the outside of the rotating roller and the crushing teeth, thereby improving the efficiency of PVC film crushing. The present invention uses a rotating roller to rotate the cleaning piece to clean the PVC film wrapped around the outside. After cleaning, the PVC film will fall into the interior of the circulation channel. Air is injected into the circulation channel by a fan. The cleaned PVC film moves up along the circulation channel under the action of the wind. Since the gap between the circulation channel and the processing chamber gradually decreases from the upper and lower ends to the middle, the smaller gap can increase the wind speed, and the cleaned PVC film enters the interior of the processing chamber through the circulation channel for circulation and crushing treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the planar structure of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram; Figure 4 This is a schematic diagram of the structure of the transmission assembly and the crushing assembly of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the transmission assembly and the crushing assembly of the present invention; Figure 6 This is a schematic diagram of the coordination structure of the crushing component, the processing chamber and the circulation component of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic diagram of the cross-sectional structure of the crushing component of the present invention; Figure 9 This is a schematic diagram of the disassembled structure of the crushing assembly of the present invention.

[0014] In the figure: 1. Processing chamber; 2. Conveying equipment; 3. Circulation component; 31. Circulation channel; 32. Fan; 4. Transmission component; 41. Support member; 42. Guide member; 5. Crushing component; 51. Rotating roller; 52. Cleaning member; 521. Cleaning horizontal plate; 522. First cutting knife; 523. First magnet; 524. Second magnet; 525. Protective pad; 526. Second cutting knife; 527. Vertical groove; 528. Horizontal groove; 53. Crushing teeth; 54. Support frame; 55. Connecting member; 56. Transmission rod; 57. Reset spring. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] like Figures 1 to 9 As shown, the present invention provides a PVC film waste recycling and reprocessing device, including a processing chamber 1, and also including: Crushing assembly 5, the crushing assembly 5 is arranged inside the processing chamber 1; Conveying equipment 2, which is installed at the bottom of the processing chamber 1; The circulation component 3 is installed on the side of the processing chamber 1; Transmission assembly 4, which is fixed on both sides of the processing chamber 1; The crushing assembly 5 includes a rotating roller 51 disposed inside the processing chamber 1, with crushing teeth 53 disposed on the outside of the rotating roller 51, and a transverse groove 528 formed on the outside of the rotating roller 51 and located on the side of the crushing teeth 53, and a cleaning member 52 is movably disposed inside the transverse groove 528; Connecting members 55 are fixedly mounted on both ends of the cleaning member 52, and a transmission rod 56 is fixedly mounted on the outside of the connecting member 55; The transmission assembly 4 includes a support member 41 fixed to the side of the processing chamber 1. The support member 41 is movably mounted on the outside of the rotating roller 51. The inner wall of the support member 41 is fixed with a guide member 42. The rotating roller 51 drives the crushing teeth 53, the cleaning member 52, the connecting member 55 and the transmission rod 56 to rotate. During the rotation of the transmission rod 56, it is guided by the guide member 42 to drive the cleaning member 52 to move upward along the side of the crushing teeth 53. The outside of the processing chamber 1 is equipped with a motor for driving the rotating roller 51; The thickness of the guide member 42 is consistent with the length of the transmission rod 56, and the guide member 42 does not contact the connecting member 55 during the rotation of the rotating roller 51 and the connecting member 55; The cleaning member 52 is arranged on the side of the crushing tooth 53 in the rotation direction, and the guide member 42 is arranged at one end close to the circulation component 3; The rotating roller 51 rotates with the crushing teeth 53 . When the crushing teeth 53 rotate to the bottom end, the cleaning member 52 cleans the side of the crushing teeth 53 .

[0017] The PVC film waste is injected into the processing bin 1, and the driving motor drives the rotating roller 51 to rotate and crush the PVC film through the crushing teeth 53. During the crushing process, the PVC film will be wrapped around the outside of the rotating roller 51 and the crushing teeth 53. When the crushing teeth 53 rotate to the lower end, the transmission rod 56 is guided by the guide member 42, so that the connecting member 55 and the cleaning member 52 move up along the transverse groove 528. Since the cleaning member 52 contacts the side of the crushing teeth 53, the PVC film wrapped around the side of the crushing teeth 53 is cut by the cleaning member 52, and the cut PVC film falls into the interior of the circulation component 3, avoiding the PVC film from being wrapped around the outside of the rotating roller 51 and the crushing teeth 53, thereby improving the efficiency of PVC film crushing and reducing the subsequent cleaning of the rotating roller 51.

[0018] like Figure 6 and Figure 9 As shown, the crushing assembly 5 further includes a receiving frame 54 fixed to both ends of the rotating roller 51. The receiving frame 54 has a guide groove opposite to the transverse groove 528 on its exterior. The connecting member 55 slides in the guide groove. The guide groove is filled with a protective pad 525. The bottom of the transverse groove 528 is connected to the top of the connecting member 55. A return tension spring 57 is provided between the outside of the receiving frame 54 and the connecting member 55 .

[0019] During the rotation of the rotating roller 51, the connecting member 55 and the transmission rod 56, the transmission rod 56 is guided by the guide member 42, so that the connecting member 55 drives the cleaning member 52 to move up along the guide groove and the transverse groove 528 and stretch the reset spring 57. At the same time, the protective pad 525 is compressed during the upward movement of the connecting member 55, and when the transmission rod 56 is out of contact with the guide member 42, the connecting member 55 and the cleaning member 52 are reset under the action of the reset spring 57, and the rotating roller 51 continues to rotate to crush the PVC film through the crushing teeth 53, and at the same time, the guide groove is protected by the protective pad 525 to prevent PVC film waste from entering the guide groove.

[0020] like Figure 7-Figure 9 As shown, the cleaning member 52 includes a cleaning horizontal plate 521 fixed between two connecting members 55. Second cutting blades 526 are fixedly installed at equal intervals on the side of the cleaning horizontal plate 521. The first cutting blade 522 is movably sleeved inside the horizontal groove 528. The side of the first cutting blade 522 is provided with a vertical groove 527. The second cutting blade 526 moves inside the vertical slot 527; A first magnet 523 is fixedly mounted on the bottom of the first cutting blade 522, and a second magnet 524 is fixedly mounted on the bottom of the transverse groove 528; In the initial state, the bottom of the first magnet 523 contacts the second magnet 524, the two ends of the top of the first cutting blade 522 are in contact with the periphery of the rotating roller 51, and the second cutting blade 526 is kept horizontal with the top of the first cutting blade 522; The top end of the first cutting blade 522 is in a knife-edge shape, and the sides of the first cutting blade 522 and the second cutting blade 526 are in contact with the sides of the crushing teeth 53 .

[0021] The motor drives the rotating roller 51 to rotate, and guides the transmission rod 56 through the guide member 42, so that the transmission rod 56, the connecting member 55 and the cleaning transverse plate 521 move upward, and the second cutting knife 526 moves upward along the side of the crushing tooth 53 to cut the PVC film wrapped on the crushing tooth 53. During the upward movement, the cleaning transverse plate 521 contacts the first cutting knife 522, thereby driving the first cutting knife 522 and the first magnet 523 to move upward, so that the first magnet 523 and the second magnet 524 are out of contact, and then the first cutting knife 522 is used to cut the PVC film wrapped around the outside of the rotating roller 51 along the crushing tooth 53. At the same time, the first cutting knife 522 can push the PVC film wrapped around the crushing tooth 53 and make it separate from the crushing tooth 53. In this way, the PVC film wrapped around the crushing tooth 53 and the rotating roller 51 can be cleaned by the second cutting knife 526 and the first cutting knife 522.

[0022] like Figure 2 and Figure 6 As shown, the circulation assembly 3 includes a circulation channel 31 fixed to the side of the processing chamber 1, and a fan 32 is fixed at the bottom of the circulation channel 31; The distance between the circulation channel 31 and the processing chamber 1 gradually decreases from the upper and lower ends to the middle.

[0023] The cleaning part 52 is rotated by the rotating roller 51 to clean the PVC film wrapped around the outside. After cleaning, the PVC film will fall into the interior of the circulation channel 31. Air is injected into the circulation channel 31 by the fan 32. The cleaned PVC film moves up along the circulation channel 31 under the action of the wind. Since the gap between the circulation channel 31 and the processing chamber 1 gradually decreases from the upper and lower ends to the middle, the smaller gap can increase the wind speed, and the cleaned PVC film passes through the circulation channel 31 into the interior of the processing chamber 1 for circulation and crushing.

[0024] The working principle and use process of the present invention: The PVC film waste is injected into the processing chamber 1, and the driving motor drives the rotating roller 51 to rotate and crush the PVC film through the crushing teeth 53. During the crushing process, the PVC film will be wound around the rotating roller 51 and the outside of the crushing teeth 53. When the crushing teeth 53 rotate to the lower end, the guide member 42 guides the transmission rod 56, so that the transmission rod 56, the connecting member 55 and the cleaning horizontal plate 521 move upward, and the second cutting knife 526 moves upward along the side of the crushing teeth 53 to cut the PVC film wrapped around the crushing teeth 53. The middle cleaning horizontal plate 521 contacts the first cutting blade 522, thereby driving the first cutting blade 522 and the first magnet 523 to move upward, so that the first magnet 523 and the second magnet 524 are out of contact. Then, the first cutting blade 522 cuts the PVC film wrapped around the outside of the rotating roller 51 along the crushing teeth 53. At the same time, the first cutting blade 522 can push the PVC film wrapped around the crushing teeth 53 and separate it from the crushing teeth 53, thereby improving the efficiency of PVC film crushing and reducing the need for subsequent cleaning of the rotating roller 51. During the rotation of the rotating roller 51, the connecting member 55 and the transmission rod 56, the transmission rod 56 is guided by the guide member 42, so that the connecting member 55 drives the cleaning member 52 to move upward along the guide groove and the transverse groove 528 and stretch the reset spring 57. At the same time, the protective pad 525 is compressed during the upward movement of the connecting member 55. When the transmission rod 56 is out of contact with the guide member 42, the connecting member 55 and the cleaning member 52 are reset under the action of the reset spring 57, and the rotating roller 51 continues to rotate to crush the PVC film through the crushing teeth 53. At the same time, the guide groove is protected by the protective pad 525 to prevent PVC film waste from entering the guide groove. The cleaning part 52 is rotated by the rotating roller 51 to clean the PVC film wrapped around the outside. After cleaning, the PVC film will fall into the interior of the circulation channel 31. Air is injected into the circulation channel 31 by the fan 32. The cleaned PVC film moves up along the circulation channel 31 under the action of the wind. Since the gap between the circulation channel 31 and the processing chamber 1 gradually decreases from the upper and lower ends to the middle, the smaller gap can increase the wind speed, and the cleaned PVC film passes through the circulation channel 31 into the interior of the processing chamber 1 for circulation and crushing.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A PVC film waste recycling and reprocessing device, comprising a processing chamber (1), characterized in that: Also includes: A crushing assembly (5), the crushing assembly (5) being arranged inside the processing chamber (1); A conveying device (2), the conveying device (2) being installed at the bottom of the processing chamber (1); A circulation component (3), the circulation component (3) being installed on a side of the processing chamber (1); A transmission assembly (4), the transmission assembly (4) being fixedly mounted on both sides of the processing chamber (1); The crushing assembly (5) comprises a rotating roller (51) arranged inside the processing chamber (1), a crushing tooth (53) is arranged outside the rotating roller (51), a transverse groove (528) is provided outside the rotating roller (51) and on the side of the crushing tooth (53), and a cleaning member (52) is movably arranged inside the transverse groove (528); Connecting members (55) are fixedly mounted on both ends of the cleaning member (52), and a transmission rod (56) is fixedly mounted on the outside of the connecting member (55); The transmission assembly (4) comprises a support member (41) fixedly mounted on the side of the processing chamber (1), the support member (41) being movably sleeved on the outside of the rotating roller (51), and a guide member (42) being fixedly mounted on the inner wall of the support member (41); The rotating roller (51) drives the crushing teeth (53), the cleaning member (52), the connecting member (55) and the transmission rod (56) to rotate. During the rotation of the transmission rod (56), the cleaning member (52) is guided by the guide member (42) and moves upward along the side of the crushing teeth (53).

2. The PVC film waste recycling and reprocessing device according to claim 1, characterized in that: The outside of the processing chamber (1) is equipped with a motor for driving a rotating roller (51); The thickness of the guide member (42) is consistent with the length of the transmission rod (56), and the guide member (42) does not contact the connecting member (55) during the rotation of the rotating roller (51) and the connecting member (55).

3. The PVC film waste recycling and reprocessing device according to claim 2, characterized in that: The cleaning member (52) is arranged on the side of the crushing tooth (53) in the rotation direction, and the guide member (42) is arranged at one end close to the circulation component (3); The rotating roller (51) rotates with the crushing teeth (53), and when the crushing teeth (53) rotate to the bottom end, the side of the crushing teeth (53) is cleaned by the cleaning member (52).

4. The PVC film waste recycling and reprocessing device according to claim 3, characterized in that: The crushing assembly (5) further comprises a receiving frame (54) fixedly mounted on both ends of the rotating roller (51), a guide groove opposite to the transverse groove (528) being provided on the outside of the receiving frame (54), the connecting member (55) sliding in the guide groove, the guide groove being filled with a protective pad (525), and the bottom of the transverse groove (528) being connected to the top of the connecting member (55); A return tension spring (57) is provided between the outside of the receiving frame (54) and the connecting member (55).

5. The PVC film waste recycling and reprocessing device according to claim 1, characterized in that: The cleaning member (52) includes a cleaning transverse plate (521) fixed between the two connecting members (55), a second cutting knife (526) is fixedly installed at equal intervals on the side of the cleaning transverse plate (521), a first cutting knife (522) is movably sleeved inside the transverse groove (528), and a vertical groove (527) is opened on the side of the first cutting knife (522); The second cutting knife (526) moves inside the vertical groove (527).

6. The PVC film waste recycling and reprocessing device according to claim 5, characterized in that: A first magnet (523) is fixedly mounted on the bottom of the first cutting blade (522), and a second magnet (524) is fixedly mounted on the bottom of the transverse groove (528); In an initial state, the bottom of the first magnet (523) contacts the second magnet (524), the two ends of the top of the first cutting knife (522) are in contact with the periphery of the rotating roller (51), and the second cutting knife (526) and the top of the first cutting knife (522) remain horizontal.

7. The PVC film waste recycling and reprocessing device according to claim 6, characterized in that: The top end of the first cutting knife (522) is in the shape of a knife edge, and the sides of the first cutting knife (522) and the second cutting knife (526) are in contact with the sides of the crushing teeth (53).

8. The PVC film waste recycling and reprocessing device according to claim 7, characterized in that: The circulation assembly (3) comprises a circulation channel (31) fixedly mounted on the side of the processing chamber (1), and a fan (32) is fixedly mounted at the bottom of the circulation channel (31); The distance between the circulation channel (31) and the processing chamber (1) gradually decreases from the upper and lower ends to the middle.

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