Process waste recovery device for plastic processing

Abstract

The invention discloses a process waste recycling device for plastic processing, and relates to the technical field of plastic recycling, the process waste recycling device comprises a platform, a cleaning mechanism, a conveying mechanism and a compression mechanism are installed on the platform, the compression mechanism comprises a compression shell, a compression channel is formed in the compression shell, and the two ends of the compression channel are each provided with a discharging port; a baffle is slidably arranged at each discharging port, a discharging assembly is slidably installed in the compression channel in a reciprocating mode and used for pushing waste to move and compress the waste and pushing the waste to leave the compression channel, and when the discharging assembly moves towards one discharging port, the baffle in the direction ascends and is opened, and the baffle in the direction is opened. According to the plastic waste briquetting machine, automatic cleaning, filtering, air drying and briquetting of plastic waste are achieved through cooperation of the cleaning mechanism, the conveying mechanism and the compressing mechanism, and the automation degree is high.

Description

Technical Field

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

[0002] At present, plastic and other waste products are crushed by crushers when they are recycled. Because the plastic products themselves carry gravel and gravel mixed in when they are collected, they are usually crushed and mixed together. The crushed waste is mixed with gravel, sand, iron filings and other impurities and cannot be recycled directly. First, plastics need to be separated from the above materials, and they also need to be cleaned and dried to reduce the spread of viruses through cleaning and sterilization.

[0003] The Chinese utility model patent with announcement number CN209257287U discloses a waste recovery device for plastic processing, including a cleaning crushing box, a melting furnace, a connecting column, a frame, a recovery box, a connecting shaft, a recovery shovel, etc. Although the utility model can clean the waste through a water pipe, the technical solution of the patent is different from the technical solution of the present invention. The present invention achieves higher working efficiency by cooperating with the transmission mechanism and the cleaning mechanism. At the same time, the present invention makes the recovery process more convenient and quick by briquetting the waste. Therefore, the present invention provides a process waste recovery device for plastic processing. Summary of the invention

[0004] The present invention aims at the defects of the prior art and provides a waste recovery device for plastic processing to overcome the problems in the prior art.

[0005] The technical solution adopted by the present invention is: a process waste recovery device for plastic processing, including a platform, a cleaning mechanism, a conveying mechanism, and a compression mechanism are installed on the platform, the conveying mechanism is connected to the cleaning mechanism and the compression mechanism, and is located between the cleaning mechanism and the compression mechanism, the compression mechanism includes a compression shell, a compression channel is arranged on the compression shell, and a discharge port is respectively arranged at both ends of the compression channel, a baffle is respectively slidably arranged at each discharge port, and four surrounding heating plates are respectively arranged at each discharge port, and a blanking assembly is reciprocatingly installed in the compression channel, the blanking assembly is used to push the waste to move, compress, and push the waste to leave the compression channel, when the blanking assembly moves toward one of the discharge ports, the baffle in that direction rises and opens, and the baffle at the other discharge port position falls and closes.

[0006] Furthermore, the cleaning mechanism includes a filter box, which is connected to the silo, a rotating shaft is rotatably installed in the filter box, and a plurality of filter push plates are evenly arranged on the rotating shaft. The filter box is connected to the first end of the guide channel wall, and the first end of a limiting plate is arranged on the guide channel wall. The second end of the limiting plate has a preset distance from the rotating shaft, and the leakage hole on the limiting plate is staggered with the leakage hole on the filter push plate.

[0007] Furthermore, a water inlet is provided on the silo, the filter box is connected with the detection cylinder, an isolation net is provided at the connection between the filter box and the detection cylinder, a float is slidably installed in the detection cylinder, a filter screen plate is provided on the filter box, a sedimentation box is detachably installed on the filter box, and a valve is provided at the connection between the sedimentation box and the filter box.

[0008] Furthermore, the second end of the guide channel wall is connected to the air-drying shell, on which two rollers are rotatably installed, and the two rollers form a belt transmission through a perforated conveyor belt, on which water filtering holes are arranged, and below the perforated conveyor belt a support plate is arranged, on which a drain outlet is arranged, and the drain outlet is connected to the guide channel wall.

[0009] Furthermore, a plurality of impellers are synchronously mounted on the air-drying shell and are tilted toward the direction of the compression mechanism. A vent is provided at one end of the air-drying shell close to the guide channel wall. The compression channel is connected to the air-drying shell. A blocking plate is slidably provided at the connection between the compression channel and the air-drying shell.

[0010] Furthermore, the two baffles are respectively connected to the first end of a compression spring, the second ends of the two compression springs are connected to the compression shell, the baffles are slidably installed on the compression shell along the radial direction of the blanking push rod, one of the baffles is connected to the first end of the wire rope, the second end of the wire rope is connected to the other baffle, the wire rope is connected to the connecting plate, and the connecting plate is connected to the piston rod of the hydraulic cylinder.

[0011] Furthermore, the blanking assembly includes a sliding plate reciprocatingly mounted on the compression shell, the sliding plate is fixedly connected to the blanking compression shell, an inner cylinder is rotatably mounted in the blanking compression shell, a threaded groove is provided on the inner wall of the inner cylinder, a blanking slider is slidably mounted in the threaded groove of the inner cylinder, the blanking slider is fixedly mounted on the blanking push rod, a through hole is provided on the blanking compression shell, and the blanking push rod is slidably mounted at the through hole position of the blanking compression shell.

[0012] Furthermore, the blanking compression shell is in contact with the inner wall of the compression channel; under normal conditions, the end faces at both ends of the blanking push rod and the end faces at both ends of the blanking compression shell are in the same horizontal plane.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) A compression channel is provided on the compression shell of the present invention, and a discharge port is provided at each end of the compression channel, and a baffle is slidably provided at each discharge port, and four surrounding heating plates are provided at each discharge port, and a blanking assembly is reciprocatingly installed in the compression channel, and the blanking assembly is used to push the waste to move, compress, and push the waste out of the compression channel; (2) The present invention drives the conveyor belt with holes to move by designing the rotation of the drum, and drives the plastic waste floating on the conveyor belt with holes to move in the direction of the compression mechanism. During the movement, the residual water on the plastic flows into the support plate and flows back into the guide channel wall through the drain port; (3) During the operation of the cleaning mechanism of the present invention, the water level in the filter box is judged by the position of the float floating in the detection cylinder. When the water level is too low, water is added to the filter box through the water injection port. Under normal circumstances, the valve is set open. When it is necessary to clean the sediment in the sedimentation box, the sliding valve closes the connection channel between the filter box and the sedimentation box, and the sedimentation box is disassembled for cleaning. (4) The present invention is designed so that when the baffle at one end is raised, the baffle at the other end remains closed, thereby preventing the subsequent plastic waste that falls into the compression shell and is not compressed from flowing out, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic top view of the overall structure of the present invention.

[0016] Figure 3 It is a schematic cross-sectional view of the overall structure of the present invention.

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of the cleaning mechanism of the present invention.

[0018] Figure 5 It is a schematic diagram of the partial structure of the cleaning mechanism and the conveying mechanism of the present invention.

[0019] Figure 6 It is a schematic diagram of the local structure of the transmission mechanism of the present invention.

[0020] Figure 7 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] Figure 8 The local structure diagram of the compression mechanism of the present invention is shown in FIG. Figure 1 .

[0022] Fig. 9 The local structure diagram of the compression mechanism of the present invention is shown in FIG. Figure 2 .

[0023] Fig.10The local structure diagram of the compression mechanism of the present invention is shown in FIG. Figure 3 .

[0024] Fig.11 It is a schematic diagram of a partial cross-sectional structure of the compression mechanism of the present invention.

[0025] Figure numerals: 1-cleaning mechanism; 2-transmission mechanism; 3-compression mechanism; 101-silo; 102-water inlet; 103-buoy; 104-detection cylinder; 105-filter box; 106-isolation net; 107-filter push plate; 108-filter screen plate; 109-sedimentation box; 110-valve; 111-limiting plate; 112-guide channel wall; 113-cleaning motor; 114-rotating shaft; 201-air drying motor; 202-transmission shaft; 203-bevel gear one; 204-bevel gear two; 205-bevel gear three; 206-bevel gear four; 207-impeller; 208-air drying housing; 209-ventilation port; 210- Drainage outlet; 211-perforated conveyor belt; 212-roller; 213-support plate; 214-transmission motor; 301-guide plate; 302-compression housing; 303-hydraulic cylinder one; 304-wire rope; 305-rotor one; 306-rotor two; 307-compression spring; 308-baffle; 309-connecting plate; 310-hydraulic cylinder two; 311-blocking plate; 312-compression motor; 313-sliding plate; 314-screw; 315-blank compression housing; 316-inner cylinder; 317-gear ring; 318-blank gear; 319-blank motor; 320-blank push rod; 321-blank slider; 322-heating plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and exemplary embodiments, and the illustrative embodiments and description of the present invention are used to explain the present invention, but are not intended to limit the present invention. In addition, if the detailed description of the known technology is unnecessary for illustrating the features of the present invention, it will be omitted.

[0027] Example: Reference Figure 1-Figure 11The waste recycling device for plastic processing shown in the figure comprises a platform, on which a cleaning mechanism 1, a conveying mechanism 2 and a compression mechanism 3 are installed. The conveying mechanism 2 is connected with the cleaning mechanism 1 and the compression mechanism 3 and is located between the cleaning mechanism 1 and the compression mechanism 3. The conveying mechanism 2 comprises an air-drying motor 201, a transmission shaft 202, a bevel gear 1 203, a bevel gear 204, a bevel gear 3 205, a bevel gear 4 206, an impeller 207, an air-drying housing 208, a vent 209, a drain 210, a conveyor belt with holes 211, a roller 212, a support plate 213 and a conveying motor 214; the compression mechanism 3 comprises a guide plate 301, a compression housing 302, a hydraulic cylinder 1 303, a wire rope 304, a rotary wheel 1 305, a rotary wheel 206, an impeller 207, a rotary wheel 208, a vent 209, a drain 210, a conveyor belt with holes 211, a roller 212, a support plate 213 and a conveying motor 214; the compression mechanism 3 comprises a guide plate 301, a compression housing 302, a hydraulic cylinder 1 303, a wire rope 304, a rotary wheel 1 305, a rotary wheel 206, a rotary wheel 207, a rotary wheel 208, a rotary wheel 209 ... Wheel 2 306, compression spring 307, baffle 308, connecting plate 309, hydraulic cylinder 2 310, baffle 311, heating plate 322, compression shell 302 is installed on the platform, compression shell 302 is provided with compression channel, both ends of compression channel are provided with a discharge port, each discharge port is provided with a baffle 308 slidingly arranged, each discharge port is provided with four surrounding heating plates 322, a blanking assembly is reciprocatingly installed in the compression channel, the blanking assembly is used to push the waste to move, compress, and push the waste to leave the compression channel, when the blanking assembly moves toward one of the discharge ports, the baffle 308 in that direction rises and opens, and the baffle 308 at the other discharge port position falls and closes.

[0028] The cleaning mechanism 1 includes a silo 101, a water inlet 102, a float 103, a detection cylinder 104, a filter box 105, an isolation net 106, a filter push plate 107, a filter screen plate 108, a sedimentation box 109, a valve 110, a limit plate 111, a guide channel wall 112, a cleaning motor 113, and a rotating shaft 114. The filter box 105 is installed on the platform, and the filter box 105 is connected to the silo 101. A rotating shaft 114 is rotatably installed in the filter box 105, and the rotating shaft 114 is connected to the cleaning motor 1 13 is connected, the cleaning motor 113 is installed on the filter box 105, a plurality of filter push plates 107 are evenly arranged on the rotating shaft 114, the filter box 105 is connected with the first end of the guide channel wall 112, the guide channel wall 112 is provided with a first end of a limiting plate 111, the second end of the limiting plate 111 is at a preset distance from the rotating shaft 114, the leakage hole on the limiting plate 111 is staggered with the leakage hole on the filter push plate 107, and the limiting plate 111 is arranged along the radial direction of the filter box 105.

[0029] A water injection port 102 is provided on the silo 101, the filter box 105 is connected with the detection cylinder 104, an isolation net 106 is provided at the connection between the filter box 105 and the detection cylinder 104, a float 103 is slidably installed in the detection cylinder 104, a filter screen plate 108 is provided on the filter box 105, a sedimentation box 109 is detachably installed on the filter box 105, a valve 110 is provided at the connection between the sedimentation box 109 and the filter box 105, and the valve 110 is slidably installed on the filter box 105.

[0030] The second end of the guide channel wall 112 is connected to the air-drying shell 208, and the air-drying shell 208 is installed on the platform. Two rollers 212 are rotatably installed on the air-drying shell 208, one of which is connected to the output shaft of the conveying motor 214, and the conveying motor 214 is installed on the platform. The two rollers 212 form a belt drive through a perforated conveyor belt 211, and the perforated conveyor belt 211 corresponds to the position of the guide plate 301. The guide plate 301 is installed on the compression shell 302, and the perforated conveyor belt 211 is provided with a water filtering hole. A support plate 213 is provided under the perforated conveyor belt 211, and the support plate 213 is installed on the platform. A drain outlet 210 is provided on the support plate 213, and the drain outlet 210 is connected to the guide channel wall 112.

[0031] A plurality of impellers 207 are synchronously mounted on the air-drying housing 208, each impeller 207 is coaxially fixedly connected to a bevel gear 4 206, the bevel gear 4 206 is meshed with the bevel gear 3 205, the bevel gear 3 205 is coaxially fixedly connected with the bevel gear 2 204, the bevel gear 2 204 is rotatably mounted on the air-drying housing 208, the bevel gear 2 204 is meshed with the bevel gear 1 203, all the bevel gears 1 203 are mounted on the transmission shaft 202, the transmission shaft 202 is connected to the output shaft of the air-drying motor 201, and the air-drying motor 20 1 is installed on the air-drying housing 208, the impeller 207 is tilted toward the direction of the compression mechanism 3, so that the air flow is blown in the direction of the cleaning mechanism 1, a vent 209 is provided at one end of the air-drying housing 208 close to the guide channel wall 112, the compression channel is communicated with the air-drying housing 208, a blocking plate 311 is slidably provided at the connection between the compression channel and the air-drying housing 208, the blocking plate 311 is connected to the piston rod of the second hydraulic cylinder 310, the second hydraulic cylinder 310 is installed on the compression housing 302, and the blocking plate 311 is slidably installed on the compression housing 302.

[0032] The two baffles 308 are respectively connected to the first end of a compression spring 307, and the second ends of the two compression springs 307 are connected to the compression shell 302. The baffles 308 are slidably installed on the compression shell 302 along the radial direction of the blanking push rod 320. One of the baffles 308 is connected to the first end of the wire rope 304, and the second end of the wire rope 304 is connected to the other baffle 308. The wire rope 304 is guided by the wheel 1 305 and the wheel 2 306. The wheel 1 305 and the wheel 2 306 are rotatably installed on the compression shell 302. The wire rope 304 is connected to the connecting plate 309, and the connecting plate 309 is connected to the piston rod of the hydraulic cylinder 1 303. The hydraulic cylinder 1 303 is installed on the compression shell 302.

[0033] The blanking assembly includes a compression motor 312, a sliding plate 313, a lead screw 314, a blanking compression housing 315, an inner cylinder 316, a gear ring 317, a blanking gear 318, a blanking motor 319, a blanking push rod 320, and a blanking slider 321; the sliding plate 313 is threadedly connected to the lead screw 314, the lead screw 314 is connected to the output shaft of the compression motor 312, the compression motor 312 is fixedly mounted on the compression housing 302, the sliding plate 313 is reciprocatingly mounted on the compression housing 302, the sliding plate 313 is fixedly connected to the blanking compression housing 315, and the blanking compression housing 315 rotates in the An inner cylinder 316 is movably installed, and a ring gear 317 is fixedly installed on the inner cylinder 316. The ring gear 317 and the blanking gear 318 are meshed with each other. The blanking gear 318 is connected to the output shaft of the blanking motor 319. The blanking motor 319 is fixedly installed on the blanking compression shell 315. A threaded groove is provided on the inner wall of the inner cylinder 316. A blanking slider 321 is slidably installed in the threaded groove of the inner cylinder 316. The blanking slider 321 is fixedly installed on the blanking push rod 320. A through hole is provided on the blanking compression shell 315, and the blanking push rod 320 is slidably installed at the through hole position of the blanking compression shell 315.

[0034] The blanking compression housing 315 is in contact with the inner wall of the compression channel; under normal conditions, the end faces of both ends of the blanking push rod 320 and the end faces of both ends of the blanking compression housing 315 are in the same horizontal plane.

[0035] The working principle of the present invention is as follows: the plastic waste crushed by the crusher is mixed with water and put into the silo 101, the cleaning motor 113 is started to drive the rotating shaft 114 to rotate, and the filter push plate 107 is driven to rotate, and the solid-liquid mixture is left in the filter box 105. The iron filings and sediment in the solid-liquid mixture pass through the filter push plate 107 and the filter mesh plate 108 and fall into the sedimentation box 109 for precipitation. Due to the different densities of the plastic waste and the iron filings and sediment, the plastic waste is pushed by the rotating filter push plate 107 and moves in the direction of the guide channel wall 112. The plastic in the guide channel wall 112 floats up and floats at the position of the perforated conveyor belt 211. Due to the obstruction of the limit plate 111, the buoyancy of the plastic waste in the water, and the driving force brought by the rotation of the filter push plate 107 in the filter box 105, the plastic waste is pushed onto the perforated conveyor belt 211.

[0036] The conveying motor 214 is started to drive the roller 212 to rotate, drive the perforated conveyor belt 211 to move, and drive the plastic waste floating on the perforated conveyor belt 211 to move in the direction of the compression mechanism 3. During the movement, the residual water on the plastic flows into the support plate 213 and flows back into the guide channel wall 112 through the drain port 210; the air-drying motor 201 drives the transmission shaft 202 to rotate, drive multiple bevel gears 1 203 to rotate, drive bevel gear 2 204 and bevel gear 3 205 to rotate, drive bevel gear 4 206 and impeller 207 to rotate, and the impeller 207 outputs wind force in the direction of the cleaning mechanism 1 to dry the plastic waste.

[0037] During the operation of the cleaning mechanism 1, the water level in the filter box 105 is determined by the position of the float 103 floating in the detection cylinder 104. When the water level is too low, water is added to the filter box 105 through the water inlet 102. Under normal circumstances, the valve 110 is open. When the sediment in the sedimentation box 109 needs to be cleaned, the sliding valve 110 closes the connection channel between the filter box 105 and the sedimentation box 109, and the sedimentation box 109 is disassembled for cleaning.

[0038] The plastic waste that has been cleaned of dirt is conveyed to the compression mechanism 3 by the perforated conveyor belt 211, and falls into the compression channel of the compression housing 302 through the guide plate 301; the compression motor 312 is started to drive the lead screw 314 to rotate, driving the blanking assembly to slide in the compression housing 302, and the blanking assembly pushes the plastic waste that falls into the compression channel to move when sliding, compressing the plastic waste, and further melts and compresses the plastic waste into blocks through the heating plate 322 at the discharge port. After the compression is completed, the compression motor 312 stops working; the hydraulic cylinder 303 is started to extend and retract the piston rod The connecting plate 309 is driven to move, and one of the baffles 308 is pulled up, and the compression spring 307 set on the baffle 308 is compressed, and the blanking motor 319 is started to drive the blanking gear 318 to rotate, drive the gear ring 317 and the inner cylinder 316 to rotate, drive the blanking slider 321 to slide in the thread groove of the inner cylinder 316, drive the blanking push rod 320 to slide on the blanking compression shell 315, and the blanking push rod 320 extends out of the blanking compression shell 315 to push the plastic block out of the compression shell 302, and then the blanking motor 319 drives the blanking push rod 320 to return to the initial position. When the baffle 308 at one end is raised, the baffle 308 at the other end remains closed to prevent the subsequent plastic waste that falls into the compression shell 302 and is not compressed from flowing out.

[0039] After the plastic waste on one side is compressed, the blanking assembly moves in the opposite direction to push the plastic waste dropped into the compression shell 302 to the other side for compression.

[0040] When the amount of plastic waste is too large, the hydraulic cylinder 2 310 is started to extend and retract the piston rod, driving the blocking plate 311 to slide in the compression shell 302 and block the connection between the guide plate 301 and the compression shell 302 to prevent excessive accumulation of plastic waste in the compression shell 302.

[0041] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A device for recycling waste from plastic processing, comprising a platform, on which a cleaning mechanism (1), a conveying mechanism (2), and a compression mechanism (3) are mounted, wherein the conveying mechanism (2) is connected to the cleaning mechanism (1) and the compression mechanism (3) and is located between the cleaning mechanism (1) and the compression mechanism (3), and characterized in that: The compression mechanism (3) comprises a compression shell (302), a compression channel is arranged on the compression shell (302), a discharge port is arranged at each end of the compression channel, a baffle (308) is slidably arranged at each discharge port, four surrounding heating plates (322) are arranged at each discharge port, a blanking assembly is reciprocatingly slidably installed in the compression channel, the blanking assembly is used to push the waste to move and compress, and push the waste to leave the compression channel, when the blanking assembly moves in the direction of one of the discharge ports, the baffle (308) in that direction rises and opens, and the baffle (308) at the other discharge port position falls and closes.

2. A plastic processing waste recovery device as claimed in claim 1, characterized in that: The cleaning mechanism (1) comprises a filter box (105), the filter box (105) being connected to the silo (101), a rotating shaft (114) being rotatably mounted in the filter box (105), a plurality of filter push plates (107) being evenly arranged on the rotating shaft (114), the filter box (105) being connected to a first end of a guide channel wall (112), a first end of a limiting plate (111) being arranged on the guide channel wall (112), a second end of the limiting plate (111) being spaced at a preset distance from the rotating shaft (114), and a leak hole on the limiting plate (111) being staggered with a leak hole on the filter push plate (107).

3. A plastic processing waste recovery device as claimed in claim 2, characterized in that: The silo (101) is provided with a water injection port (102), the filter box (105) is connected to the detection cylinder (104), an isolation net (106) is provided at the connection between the filter box (105) and the detection cylinder (104), a float (103) is slidably installed in the detection cylinder (104), a filter screen plate (108) is provided on the filter box (105), a sedimentation box (109) is detachably installed on the filter box (105), and a valve (110) is provided at the connection between the sedimentation box (109) and the filter box (105).

4. A plastic processing waste recovery device as claimed in claim 3, characterized in that: The second end of the guide channel wall (112) is in communication with the air-drying housing (208). Two rollers (212) are rotatably mounted on the air-drying housing (208). The two rollers (212) form a belt drive through a perforated conveyor belt (211). The perforated conveyor belt (211) is provided with water filtering holes. A support plate (213) is provided below the perforated conveyor belt (211). A drainage port (210) is provided on the support plate (213). The drainage port (210) is in communication with the guide channel wall (112).

5. A plastic processing waste recovery device as claimed in claim 4, characterized in that: A plurality of impellers (207) are synchronously mounted on the air-drying housing (208), and the impellers (207) are arranged to be inclined in the direction of the compression mechanism (3). A vent (209) is arranged at one end of the air-drying housing (208) close to the guide channel wall (112). The compression channel is in communication with the air-drying housing (208), and a blocking plate (311) is slidably arranged at the connection between the compression channel and the air-drying housing (208).

6. A plastic processing waste recovery device as claimed in claim 5, characterized in that: The two baffles (308) are respectively connected to the first end of a compression spring (307), the second ends of the two compression springs (307) are connected to the compression housing (302), the baffles (308) are slidably mounted on the compression housing (302) along the radial direction of the blanking push rod (320), one of the baffles (308) is connected to the first end of the steel wire rope (304), the second end of the steel wire rope (304) is connected to the other baffle (308), the steel wire rope (304) is connected to the connecting plate (309), and the connecting plate (309) is connected to the piston rod of the hydraulic cylinder (303).

7. A plastic processing waste recovery device as claimed in claim 6, characterized in that: The blanking assembly comprises a sliding plate (313) reciprocatingly mounted on the compression housing (302); the sliding plate (313) is fixedly connected to the blanking compression housing (315); an inner cylinder (316) is rotatably mounted in the blanking compression housing (315); a threaded groove is provided on the inner wall of the inner cylinder (316); a blanking slider (321) is slidably mounted in the threaded groove of the inner cylinder (316); the blanking slider (321) is fixedly mounted on the blanking push rod (320); a through hole is provided on the blanking compression housing (315); and the blanking push rod (320) is slidably mounted at the through hole position of the blanking compression housing (315).

8. A plastic processing waste recovery device as claimed in claim 7, characterized in that: The blanking compression housing (315) is in contact with the inner wall of the compression channel; under normal conditions, the end faces at both ends of the blanking push rod (320) and the end faces at both ends of the blanking compression housing (315) are located at the same horizontal plane.

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