A recycling polyester particle processing device and a processing method

Abstract

The application discloses a recycling and regenerating polyester particle processing device and a processing method, relates to the technical field of recycled plastics, and comprises a rhombic tube, the two sides of the rhombic tube are provided with upper blocking notches, lower blocking notches and switching mechanisms, the rhombic tube is matched with the upper blocking notches, the lower blocking notches and the switching mechanisms to intermittently discharge materials, the two sides of the rhombic tube are symmetrically provided with extension pipes, the extension pipes are open, a pushing mechanism is arranged on the extension pipes, a chopping mechanism is arranged on the outlet pipe, a receiving groove is arranged at the bottom of the chopping mechanism, liquid nitrogen is injected into the receiving groove, an S-shaped frame is arranged in the receiving groove, a fishing mechanism is arranged on the receiving groove, and a rolling cylinder is arranged at the lower end of the S-shaped frame. The switching mechanism is used for realizing continuous material receiving of the rhombic tube, the pushing mechanism and the chopping mechanism on the two sides are combined to realize continuous chopping operation, the material processing efficiency is ensured, the fishing mechanism is combined to send plastic chips treated by the liquid nitrogen into the rolling cylinder for further refining treatment.

Description

Technical Field

[0001] This invention relates to the field of recycled plastics technology, specifically to a processing apparatus and method for recycling and processing polyester granules. Background Technology

[0002] Recycled plastic pellets fall under the category of plastic pellets. Recycled plastic is plastic produced by recycling used new materials or waste plastics through a screw press, and then cutting it into pellets using a pelletizer.

[0003] Existing sources of recycled plastic raw materials are wide-ranging, with waste from mold processing products being the main source. Generally, mold processing waste is initially shredded by shredding equipment, but the shredded particles are still relatively large and need to be further refined to facilitate subsequent cleaning and melting for recycling into processed raw materials. Existing plastic refining equipment mainly uses multi-stage crushing with a pulverizer. However, after the pulverizer has been running for a long time, the surface of the pulverizing blades or pulverizing drums will heat up due to friction. The smaller plastic particles melt under heat and stick to the surface of the blades or pulverizing drums, resulting in poor pulverization effect. Frequent shutdowns for cooling are required, affecting the processing efficiency of plastic pulverization. Summary of the Invention

[0004] The purpose of this invention is to provide a processing apparatus and method for recycling polyester granules, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A processing device for recycled polyester granules includes a base with a conveying mechanism mounted on it. The conveying mechanism includes an inclined rhomboid tube, with a fixing sleeve fixedly installed on the outer side of the rhomboid tube. The fixing sleeve is fixedly installed between the base and a support column. The bends of the rhomboid tube are smoothly transitioned. An inlet is provided at the upper end of the rhomboid tube, and the inlet is connected to the rhomboid tube via a pipe. An outlet pipe is connected to the tail end of the rhomboid tube. Upper and lower sealing notches are provided on both sides of the rhomboid tube. A switching mechanism is installed on the sealing gap and the lower sealing gap. The diamond-shaped tube, together with the upper sealing gap, the lower sealing gap, and the switching mechanism, performs intermittent feeding. Extension tubes are symmetrically arranged on both sides of the diamond-shaped tube. The extension tubes are open and equipped with a pushing mechanism. A shredding mechanism is installed on the outlet tube. A receiving trough is provided at the bottom of the shredding mechanism. The receiving trough is filled with liquid nitrogen. An S-shaped frame is provided in the receiving trough. A scooping mechanism is provided on the receiving trough. A crushing roller is provided on the lower side of the end of the S-shaped frame.

[0007] As a further embodiment of the present invention: the switching mechanism includes a mounting block disposed on a base, a second fixing frame disposed on the mounting block, a first fixing frame connected to the second fixing frame, sliding sleeves disposed at both ends of the first fixing frame, a sliding column sleeved on the sliding sleeve, a partition plate connected to the top of the sliding column, the partition plate respectively cooperating with the upper sealing notch and the lower sealing notch, a mating column disposed at the bottom of the sliding column, the mating column being vertically connected to the sliding column, the sliding column being connected to the driving assembly through the mating column, and the partition plate intermittently cooperating with the upper sealing notch and the lower sealing notch through the driving assembly.

[0008] As a further embodiment of the present invention: the driving assembly includes a rotatably mounted swing frame, with locking grooves at both ends of the swing frame, and an adjustment groove on the upper side of the locking grooves. The mating column engages with the locking grooves, and the sliding column engages with the adjustment grooves. Mounting plates are symmetrically arranged on the mounting block, with a drive motor fixedly mounted on one side of the mounting plate. The drive motor is connected to an output shaft, and the swing frame is fixedly connected to the output shaft. A U-shaped frame is provided in the middle of the mounting plate, and a bevel gear set is provided inside the U-shaped frame. The output shaft is connected to the bevel gear set.

[0009] As a further embodiment of the present invention: the pushing mechanism includes a fixing ring 1 disposed at the end of the extension tube, a connecting post 1 uniformly disposed on the fixing ring 1, a pushing cylinder fixedly installed at the other end of the connecting post 1, a pushing disk connected to the end of the pushing cylinder, and the pushing disk being coaxially installed with the diamond-shaped tube.

[0010] As a further embodiment of the present invention: the shredding mechanism includes a second fixing ring disposed on the outer periphery of the outlet tube, a second connecting column evenly mounted on the upper side of the second fixing ring, an installation plate connected to the end of the second connecting column, a rotary motor fixedly mounted on the side of the installation plate facing the outlet tube, the rotary motor being connected to a rotating shaft, blades evenly disposed on the rotating shaft, installation rods circularly distributed at the end of the outlet tube, the installation rods being fixedly connected to the outlet tube, the center position of the installation rods being connected to a docking block, the docking block being rotatably fitted to the end of the output shaft, and the blades being tangentially mounted to the surface of the installation rods.

[0011] As a further embodiment of the present invention: the retrieval mechanism includes trusses arranged on both sides of the receiving trough, a rotating plate rotatably mounted between the trusses, a directional motor mounted on one side of the truss, the directional motor being connected to the rotating plate, a motor frame positioned in the middle of the rotating plate, a travel motor fixedly mounted on the motor frame, a mating gear rotatably mounted inside the motor frame, a sliding plate mounted on the rotating plate at the position of the motor frame, a rack mounted on the sliding plate, the rack meshing with the mating gear, and a retrieval frame connected to the end of the sliding plate facing the receiving trough, the retrieval frame being arc-shaped.

[0012] As a further embodiment of the present invention: the S-shaped frame is provided with through holes evenly, and the two ends of the S-shaped frame are sealed between the receiving slot and the receiving slot.

[0013] A processing method for recycled polyester pellets as described above, comprising the steps of:

[0014] S1. Continuous feeding: Plastic granules are fed in through the feed port. The switching mechanism is driven so that the upper sealing notch on one side of the diamond tube is closed by the separator, and the lower sealing notch on the same side is opened. The opening and closing of the upper sealing notch and the lower sealing notch on the other side are reversed, so as to carry out single-sided feeding.

[0015] S2. Continuous feeding: The feeding mechanism on the side of the upper sealing gap is activated, pushing the plastic fragments in the diamond tube downwards and out through the discharge pipe. It is then shredded in conjunction with the shredding mechanism. After feeding is completed, the feeding mechanism retracts and switches the pipe closure status on both sides of the diamond tube through the switching mechanism, so that the upper sealing gap of the diamond tube on the other side is closed. The feeding mechanism on the other side is then activated to feed the plastic in the pipe on that side.

[0016] S3. Cryogenic pulverization: After being shredded, the plastic scraps fall into the receiving tank, are cooled by liquid nitrogen, and then fed into the crushing drums by the scooping mechanism for further pulverization and refinement.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) By setting up a diamond-shaped tube, and setting an upper sealing notch and a lower sealing notch on both sides of the diamond-shaped tube respectively, the upper sealing notch and the lower sealing notch on the same side open and close alternately, and the opening and closing states of the upper sealing notch and the lower sealing notch on both sides of the diamond-shaped tube are opposite. When the upper sealing notch on one side opens, the upper sealing notch on the other side closes, switching the feeding state. Through the rapid switching between the left and right sides, continuous material receiving and continuous material pushing movement are achieved, improving feeding efficiency and crushing efficiency.

[0019] (2) When it is necessary to carry out the retrieval operation, the directional motor is de-energized, and the bottom of the retrieval frame contacts the upper surface of the S-shaped frame under the action of gravity. At the same time, the walking motor is started, so that the retrieval frame drives the debris to move along the surface of the S-shaped frame and fall into the crushing drum from the end for crushing. With the help of liquid nitrogen cooling, the plastic particles are further crushed to improve the fineness effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the installation structure of the conveying mechanism in this invention.

[0022] Figure 3 This is a schematic diagram of the upper sealing gap in this invention.

[0023] Figure 4 This is a schematic diagram of the material pushing mechanism in this invention.

[0024] Figure 5 This is a schematic diagram of the switching mechanism in this invention.

[0025] Figure 6 This is a schematic diagram of the driving component in this invention.

[0026] Figure 7 This is a schematic diagram of the shredding mechanism in this invention.

[0027] Figure 8 This is a schematic diagram of the retrieval mechanism in this invention.

[0028] In the diagram: 1. Base; 2. Conveying mechanism; 20. Diamond-shaped tube; 21. Extension tube; 22. Upper sealing notch; 23. Lower sealing notch; 24. Fixing sleeve; 25. Support column; 26. Outlet tube; 3. Switching mechanism; 30. Mounting block; 31. Drive assembly; 310. U-shaped frame; 311. Mounting plate; 312. Drive motor; 313. Output shaft; 314. Bevel gear set; 32. Fixing frame one; 33. Fixing frame two; 34. Sliding sleeve; 35. Divider plate; 36. Sliding column; 360. Matching column; 37. Swing frame; 370. Adjustment groove; 371. Snap-fit ​​groove; 4. Feeding. 5. Feeding mechanism; 50. Pushing cylinder; 51. Fixing ring one; 52. Connecting column one; 53. Pushing disc; 6. Shredding mechanism; 60. Fixing ring two; 61. Connecting column two; 62. Mounting disc; 63. Rotary motor; 64. Mounting rod; 65. Connecting block; 66. Rotating shaft; 67. Blade; 7. Receiving slot; 70. Through hole; 71. S-shaped frame; 8. Lifting mechanism; 80. Truss; 81. Rotating plate; 82. Sliding plate; 83. Lifting frame; 84. Motor frame; 85. Matching gear; 86. Rack; 87. Travel motor; 88. Directional motor; 9. Crushing roller. Detailed Implementation

[0029] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 8 As shown, a processing device for recycled polyester granules includes a base 1, on which a conveying mechanism 2 is mounted. The conveying mechanism 2 includes an inclined diamond-shaped tube 20. A fixing sleeve 24 is fixedly installed on the outer side of the diamond-shaped tube 20. The fixing sleeve 24 is fixedly installed between the base 1 and the support column 25. The bends of the diamond-shaped tube 20 are smoothly transitioned. An inlet 4 is provided at the upper end of the diamond-shaped tube 20. The inlet 4 is connected to the diamond-shaped tube 20 via a pipe. An outlet pipe 26 is connected to the tail end of the diamond-shaped tube 20. An upper sealing notch 22 and a lower sealing notch 23 are provided on both sides of the diamond-shaped tube 20. A switching mechanism 3 is installed on the sealing gap 22 and the lower sealing gap 23. The diamond tube 20 is used to intermittently feed materials in conjunction with the upper sealing gap 22, the lower sealing gap 23, and the switching mechanism 3. Extension tubes 21 are symmetrically arranged on both sides of the diamond tube 20. The extension tubes 21 are open. A pushing mechanism 5 is provided on the extension tubes 21. A shredding mechanism 6 is provided on the outlet tube 26. A receiving trough 7 is provided at the bottom of the shredding mechanism 6. The receiving trough 7 is filled with liquid nitrogen. An S-shaped frame 71 is provided in the receiving trough 7. A scooping mechanism 8 is provided on the receiving trough 7. A crushing roller 9 is provided on the lower side of the end of the S-shaped frame 71.

[0031] Specifically, a diamond-shaped tube 20 is installed, with an upper sealing notch 22 and a lower sealing notch 23 on both sides of the tube 20. The upper sealing notch 22 and lower sealing notch 23 on the same side open and close alternately, and their opening and closing states are opposite. When one upper sealing notch 22 is open, the other upper sealing notch 22 is closed, switching the feeding state. For example... Figure 2 As shown, the upper sealing notch 22 of the diamond-shaped tube 20 on the right is closed, and the lower sealing notch 23 is open. The opposite is true on the left. Plastic scraps are received from the left. At this time, the pushing mechanism 5 on the right moves, squeezing the plastic scraps in the right pipe and pushing them out of the outlet pipe 26. It works in conjunction with the shredding mechanism 6 to shred the scraps. After the pushing is completed, the pushing mechanism 5 returns to its original position. The switching mechanism 3 switches the plastic scrap receiving state of the diamond-shaped tube 20, closing the upper sealing notch 22 on the left and opening the lower sealing notch 23 on the left. At this time, the pushing mechanism 5 on the left starts to push the scraps. Through the rapid switching between the left and right sides, continuous material reception and continuous pushing motion are achieved, improving the feeding efficiency and shredding efficiency.

[0032] Furthermore, such as Figure 5 As shown, the switching mechanism 3 includes a mounting block 30 mounted on a base 1. A second fixing frame 33 is mounted on the mounting block 30. A first fixing frame 32 is connected to the second fixing frame 33. Sliding sleeves 34 are provided at both ends of the first fixing frame 32. A sliding column 36 is sleeved on the sliding sleeve 34. A partition plate 35 is connected to the top of the sliding column 36. The partition plate 35 cooperates with the upper sealing notch 22 and the lower sealing notch 23 respectively. A mating column 360 is provided at the bottom of the sliding column 36. The mating column 360 is vertically connected to the sliding column 36. The sliding column 36 is connected to the driving assembly 31 through the mating column 360. The partition plate 35 is intermittently mated with the upper sealing notch 22 and the lower sealing notch 23 through the driving assembly 31.

[0033] Furthermore, such as Figure 6 As shown, the drive assembly 31 includes a rotatably mounted swing frame 37. The swing frame 37 has locking grooves 371 at both ends, and an adjustment groove 370 on the upper side of the locking grooves 371. The mating column 360 engages with the locking grooves 371, and the sliding column 36 engages with the adjustment groove 370. Mounting plates 311 are symmetrically arranged on the mounting block 30. A drive motor 312 is fixedly mounted on one side of the mounting plate 311. The drive motor 312 is connected to an output shaft 313. The swing frame 37 is fixedly connected to the output shaft 313. A U-shaped frame 310 is located in the middle of the mounting plate 311. A bevel gear set 314 is arranged inside the U-shaped frame 310, and the output shaft 313 is connected to the bevel gear set 314.

[0034] Specifically, the drive assembly 31 drives the separator 35 to cooperate with or open the upper sealing notch 22 and the lower sealing notch 23, while the bevel gear set 314 controls the movement of the separator 35 on both sides of the rhomboid tube 20, thereby simplifying the power mechanism and enabling rapid switching of the material receiving state of the rhomboid tube 20.

[0035] More specifically, it should be noted that the sliding sleeve 34 and the sliding column 36 are slidably installed without relative rotation, ensuring reliable engagement and separation between the partition plate 35 and the upper sealing notch 22 and the lower sealing notch 23.

[0036] Furthermore, such as Figure 4 As shown, the pushing mechanism 5 includes a fixing ring 51 disposed at the end of the extension tube 21. Connecting posts 52 are evenly disposed on the fixing ring 51. A pushing cylinder 50 is fixedly installed at the other end of the connecting post 52. A pushing disk 53 is connected to the end of the pushing cylinder 50. The pushing disk 53 is coaxially installed with the diamond tube 20.

[0037] Furthermore, such as Figure 7 As shown, the shredding mechanism 6 includes a fixing ring 60 disposed on the outer periphery of the outlet tube 26. Connecting posts 61 are evenly installed on the upper side of the fixing ring 60. The end of the connecting post 61 is connected to a mounting plate 62. A rotary motor 63 is fixedly installed on the side of the mounting plate 62 facing the outlet tube 26. The rotary motor 63 is connected to a rotating shaft 66. Blades 67 are evenly disposed on the rotating shaft 66. A mounting rod 64 is circularly distributed at the end of the outlet tube 26. The mounting rod 64 is fixedly connected to the outlet tube 26. The center position of the mounting rod 64 is connected to a docking block 65. The docking block 65 is rotatably fitted to the end of the output shaft 313. The blades 67 are tangentially mounted to the surface of the mounting rod 64.

[0038] Specifically, connecting post 2 61 is installed on the upper side to ensure that the shredded plastic fragments can fall smoothly into the receiving slot 7 below, avoiding impact and splashing that would cause them to fall outside the receiving slot 7.

[0039] Furthermore, such as Figure 8As shown, the retrieval mechanism 8 includes trusses 80 arranged on both sides of the receiving trough 7. A rotating plate 81 is rotatably mounted between the trusses 80. A directional motor 88 is mounted on one side of the truss 80 and is connected to the rotating plate 81. A motor frame 84 is located in the middle of the rotating plate 81. A travel motor 87 is fixedly mounted on the motor frame 84. A mating gear 85 is rotatably mounted inside the motor frame 84. A sliding plate 82 is mounted on the rotating plate 81 at the position of the motor frame 84. A rack 86 is provided on the sliding plate 82, and the rack 86 meshes with the mating gear 85. A retrieval frame 83 is connected to the end of the sliding plate 82 facing the receiving trough 7. The retrieval frame 83 is arc-shaped. Through holes 70 are evenly arranged on the S-shaped frame 71, and the two ends of the S-shaped frame 71 are closedly mounted to the receiving trough 7.

[0040] Specifically, before scooping up the debris, the scooping frame 83, sliding plate 82, and rotating plate 81 are kept horizontal under the control of the directional motor 88, and the scooping frame 83 is located above the left side of the S-shaped frame 71 under the drive of the travel motor 87. When the scooping operation is required, the directional motor 88 is de-energized, and the bottom of the scooping frame 83 contacts the upper surface of the S-shaped frame 71 under the action of gravity. At the same time, the travel motor 87 is started, so that the scooping frame 83 drives the debris to move along the surface of the S-shaped frame 71 and fall into the crushing roller 9 from the end for crushing.

[0041] A processing method for recycled polyester pellets as described above, comprising the steps of:

[0042] S1. Continuous feeding: Plastic granules are fed in through the feed port 4. The switching mechanism 3 is driven so that the upper sealing notch 22 on one side of the diamond tube 20 is closed by the separator 35, and the lower sealing notch 23 on the same side is opened. The opening and closing of the upper sealing notch 22 and the lower sealing notch 23 on the other side are opposite, so as to carry out single-sided feeding.

[0043] S2. Continuous feeding: The feeding mechanism 5 on one side of the sealing gap 22 is activated, pushing the plastic fragments in the diamond tube 20 downwards and out through the outlet pipe 26. It is then shredded in conjunction with the shredding mechanism 6. After feeding is completed, the feeding mechanism 5 retracts and switches the pipe closure state on both sides of the diamond tube 20 through the switching mechanism 3, so that the sealing gap 22 on the other side of the diamond tube 20 is closed. The feeding mechanism 5 on the other side is activated to feed the plastic in the pipe on that side.

[0044] S3. Cryogenic pulverization: After being shredded, the plastic fragments fall into the receiving tank 7. After being cooled by liquid nitrogen, they are fed into the crushing rollers 9 by the scooping mechanism 8 for further pulverization and refinement.

[0045] The working principle of this invention embodiment is as follows:

[0046] like Figure 1-8 As shown, a rhomboid tube 20 is provided, with an upper sealing notch 22 and a lower sealing notch 23 on both sides of the rhomboid tube 20. The upper sealing notch 22 and the lower sealing notch 23 on the same side open and close alternately, and the opening and closing states of the upper sealing notch 22 and the lower sealing notch 23 on both sides of the rhomboid tube 20 are opposite. When the upper sealing notch on one side is open, the upper sealing notch on the other side is closed, switching the feeding state. Figure 2 As shown, the upper sealing notch 22 of the right-side rhomboid tube 20 is closed, and the lower sealing notch 23 is open. The opposite is true on the left side, where plastic scraps are received from the left. At this time, the pushing mechanism 5 on the right moves, squeezing the plastic scraps in the right-side tube and pushing them out of the outlet tube. This is then chopped in conjunction with the shredding mechanism 6. After the pushing is completed, the pushing mechanism 5 returns to its original position. The tube cutting mechanism switches the plastic scrap receiving state of the rhomboid tube 20, closing the upper sealing notch 22 on the left and opening the lower sealing notch 23 on the left. At this time, the pushing mechanism 5 on the left starts to push the scraps. Through the rapid switching between the left and right sides, continuous material receiving and pushing motion are achieved, improving feeding efficiency and shredding efficiency. The drive assembly 31 drives the separator 35 to engage or open with the upper sealing notch 22 and the lower sealing notch 23. At the same time, the bevel gear set 314 controls the movement of the separator 35 on both sides of the rhomboid tube 20, simplifying the power mechanism while allowing for rapid switching of the material receiving state of the rhomboid tube 20. It is important to note that the sliding sleeve 34 and the sliding column 36 are slidably installed without relative rotation, ensuring reliable engagement and separation between the separator 35 and the upper and lower sealing notches 22 and 23. The connecting column 61 is installed on the upper side to ensure that the shredded plastic fragments can fall smoothly into the receiving trough 7 below, preventing impact and splashing that could cause them to fall outside the receiving trough 7. Before retrieval, the retrieval frame 83, sliding plate 82, and rotating plate 81 are kept horizontal under the control of the directional motor 88. The retrieval frame 83, driven by the travel motor 87, is positioned above and to the left of the S-shaped frame 71. When retrieval is required, the directional motor 88 is de-energized, and the bottom of the retrieval frame 83 contacts the upper surface of the S-shaped frame 71 under gravity. Simultaneously, the travel motor 87 is activated, causing the retrieval frame 83 to move the fragments along the surface of the S-shaped frame 71 and drop them from the end into the crushing roller 9 for crushing.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A processing device for recycling polyester granules, comprising a base (1), characterized in that, A conveying mechanism (2) is provided on the base (1). The conveying mechanism (2) includes an inclined rhomboid tube (20). A fixing sleeve (24) is fixedly installed on the outside of the rhomboid tube (20). The fixing sleeve (24) is fixedly installed between the base (1) and the support column (25). The bend of the rhomboid tube (20) is smoothly transitioned. A feed inlet (4) is provided at the upper end of the rhomboid tube (20). The feed inlet (4) is connected to the rhomboid tube (20) through a pipe. A discharge pipe (26) is connected to the tail end of the rhomboid tube (20). An upper sealing notch (22) and a lower sealing notch (23) are provided on both sides of the rhomboid tube (20). The upper sealing notch (22) and the lower sealing notch (23) 23) A switching mechanism (3) is installed on the upper part. The diamond tube (20) is used in conjunction with the upper sealing notch (22) and the lower sealing notch (23) and the switching mechanism (3) for intermittent feeding. The diamond tube (20) is symmetrically provided with extension tubes (21) on both sides. The extension tubes (21) are open. The extension tubes (21) are provided with a pushing mechanism (5). The outlet tube (26) is provided with a shredding mechanism (6). The bottom of the shredding mechanism (6) is provided with a receiving trough (7). The receiving trough (7) is filled with liquid nitrogen. The receiving trough (7) is provided with an S-shaped frame (71). The receiving trough (7) is provided with a scooping mechanism (8). The lower end of the S-shaped frame (71) is provided with a crushing roller (9). The switching mechanism (3) includes a mounting block (30) on a base (1), a second fixing frame (33) on the mounting block (30), a first fixing frame (32) connected to the second fixing frame (33), a sliding sleeve (34) at both ends of the first fixing frame (32), a sliding column (36) sleeved on the sliding sleeve (34), a partition plate (35) connected to the top of the sliding column (36), the partition plate (35) cooperating with the upper sealing notch (22) and the lower sealing notch (23) respectively, a mating column (360) at the bottom of the sliding column (36), the mating column (360) and the sliding column (36) being vertically connected, the sliding column (36) being connected to the drive assembly (31) through the mating column (360), and the partition plate (35) intermittently cooperating with the upper sealing notch (22) and the lower sealing notch (23) through the drive assembly (31). The drive assembly (31) includes a rotatably mounted swing frame (37), with snap-fit ​​grooves (371) at both ends of the swing frame (37), and an adjustment groove (370) on the upper side of the snap-fit ​​grooves (371). The mating column (360) cooperates with the snap-fit ​​grooves (371), and the sliding column (36) cooperates with the adjustment grooves (370). The mounting block (30) is symmetrically provided with mounting plates (311), and a drive motor (312) is fixedly mounted on one side of the mounting plate (311). The drive motor (312) is connected to an output shaft (313), and the swing frame (37) is fixedly connected to the output shaft (313). A U-shaped frame (310) is provided in the middle of the mounting plate (311), and a bevel gear set (314) is provided inside the U-shaped frame (310). The output shaft (313) is connected to the bevel gear set (314).

2. The recycling and regeneration polyester granule processing device according to claim 1, characterized in that, The pushing mechanism (5) includes a fixing ring (51) at the end of the extension tube (21), and a connecting post (52) is evenly arranged on the fixing ring (51). A pushing cylinder (50) is fixedly installed at the other end of the connecting post (52). A pushing disc (53) is connected to the end of the pushing cylinder (50). The pushing disc (53) is coaxially installed with the rhomboid tube (20) in which it is located.

3. The recycling and regeneration polyester granule processing device according to claim 1, characterized in that, The shredding mechanism (6) includes a fixing ring two (60) disposed on the outer periphery of the outlet tube (26). A connecting column two (61) is evenly installed on the upper side of the fixing ring two (60). A mounting plate (62) is connected to the end of the connecting column two (61). A rotary motor (63) is fixedly installed on the side of the mounting plate (62) facing the outlet tube (26). The rotary motor (63) is connected to a rotating shaft (66). Blades (67) are evenly disposed on the rotating shaft (66). A mounting rod (64) is circularly distributed at the end of the outlet tube (26). The mounting rod (64) is fixedly connected to the outlet tube (26). The center position of the mounting rod (64) is connected to the docking block (65). The docking block (65) is rotatably fitted to the end of the output shaft (313). The blade (67) is tangentially installed to the surface of the mounting rod (64).

4. The recycling and regeneration polyester granule processing device according to claim 1, characterized in that, The retrieval mechanism (8) includes trusses (80) arranged on both sides of the receiving trough (7). A rotating plate (81) is rotatably installed between the trusses (80). A directional motor (88) is arranged on one side of the truss (80). The directional motor (88) is connected to the rotating plate (81). A motor frame (84) is arranged in the middle of the rotating plate (81). A walking motor (87) is fixedly installed on the motor frame (84). A mating gear (85) is rotatably installed inside the motor frame (84). A sliding plate (82) is installed on the rotating plate (81) at the part of the motor frame (84). A rack (86) is arranged on the sliding plate (82). The rack (86) meshes with the mating gear (85). A retrieval frame (83) is connected to the end of the sliding plate (82) facing the receiving trough (7). The retrieval frame (83) is arc-shaped.

5. The recycling and regeneration polyester granule processing device according to claim 1, characterized in that, The S-shaped frame (71) is provided with through holes (70) evenly, and the two ends of the S-shaped frame (71) are closed between the receiving slot (7).

6. A processing method for a recycled polyester pellet processing apparatus as described in any one of claims 1-5, characterized in that, Including the following steps: S1. Continuously feed plastic granules through the feed inlet (4) and drive the switching mechanism (3) so that the upper sealing notch (22) on one side of the diamond tube (20) is closed by the separator (35) and the lower sealing notch (23) on the same side is opened. The opening and closing of the upper sealing notch (22) and the lower sealing notch (23) on the other side are opposite, so as to carry out single-sided feeding. S2. Continue pushing material. The pushing mechanism (5) on one side of the sealing gap (22) is started, pushing the plastic fragments in the diamond tube (20) downward and out through the outlet pipe (26). It is then shredded in conjunction with the shredding mechanism (6). After the pushing is completed, the pushing mechanism (5) retracts and switches the pipe closure state on both sides of the diamond tube (20) through the switching mechanism (3), so that the sealing gap (22) on the other side of the diamond tube (20) is closed, and the pushing mechanism (5) on the other side is started to push the plastic in the pipe on that side. S3. Cryogenic crushing: After being shredded, the plastic scraps fall into the receiving tank (7). After being cooled by liquid nitrogen, they are fed into the crushing rollers (9) by the scooping mechanism (8) for further crushing and refining.

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