Waste recovery device for PP plate production

Abstract

The invention discloses a waste recovery device for PP (polypropylene) plate production, relates to the field of PP plate recovery and crushing, and solves the problem that an existing PP plate waste recovery device is difficult to synchronously clean and dedust waste in the crushing process when being used, and the waste recovery device comprises a machine body, a flushing and conveying mechanism, a crushing mechanism and an output mechanism, an input groove, a conveying groove and an output groove are formed in the machine body, the flushing and conveying mechanism comprises a semi-cylinder, a water outlet groove is formed in the side face of the semi-cylinder, and the crushing mechanism comprises a crushing cutter. The semi-cylinder can push the waste to the conveying groove, the water outlet groove assists in flushing the waste to the needed position for subsequent operation, the crushing mechanism enables a crushing cutter to crush the PP waste floating on the upper side of the water body, chippings and dust are adsorbed through the water body, and the chippings and dust are filtered, dried and output through the output mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of PP sheet recycling and crushing, and specifically provides a waste recycling device for PP sheet production. Background Art

[0002] PP board is a semi-crystalline material, which is harder than PE and has a higher melting point. It is usually applied to acid and alkali resistant equipment, environmental protection equipment, waste water and waste gas discharge equipment, scrubbing towers, clean rooms, semiconductor factories and their related industrial equipment. Among them, thick PP boards are widely used for stamping plates, punching mattress plates, etc. During the production and processing of PP sheets, it is necessary to cut off the excess burrs of the PP sheets. At the same time, in order to produce PP sheets of different specifications, it is also necessary to cut the PP sheets, which will generate excess PP sheet waste. If the PP sheet waste is directly discarded, it will cause waste of resources. Therefore, it is necessary to recycle the PP sheet waste.

[0003] When the existing waste recycling device for PP sheet production is in use, dust is easily generated during the waste crushing process. At the same time, stains will accumulate on the surface of the waste during the recycling process, which will affect the quality of the subsequent recycled materials. The functions of the equipment are relatively single, and it is difficult to automatically complete a series of processes such as waste cleaning, conveying, crushing, and drying during the recycling operation, which affects the recycling efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a waste recycling device for PP sheet production that is convenient for improving the crushing and recycling efficiency and automation degree of PP sheet waste, so as to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A waste recycling device for PP sheet production, comprising a machine body, a flushing and conveying mechanism, a crushing mechanism, and an output mechanism. An input groove, a conveying groove, and an output groove are formed in the machine body. The input groove, the conveying groove, and the output groove are interconnected and are all used for storing water bodies. The flushing and conveying mechanism includes a semi-cylinder rotatably connected to the inner wall of the machine body. Water outlet grooves are formed on the side surface of the semi-cylinder. The flushing and conveying mechanism can flush the waste materials in the input groove through the water outlet grooves on the side surface of the semi-cylinder. At the same time, by controlling the rotation angle of the semi-cylinder, the semi-cylinder can push the waste materials into the conveying groove, and assist in flushing the waste materials to the required position through the water outlet grooves for subsequent operations. The crushing mechanism includes multiple groups of crushing knives installed in the conveying groove. The crushing mechanism can crush the PP waste materials floating on the upper side of the water body through the crushing knives, adsorb the debris and dust by the water body, and at the same time push the crushed waste materials for conveying. The output mechanism is installed in the machine body and is used for filtering, drying, and outputting the crushed waste materials, which is convenient for improving the crushing and recycling efficiency and automation degree of PP sheet waste materials.

[0006] Preferably, the flushing and conveying mechanism further includes a filter pump fixedly installed in the machine body. The outer wall of the semi-cylinder can rotatably fit with the surface of the input groove. A driving member for driving the semi-cylinder to rotate and adjust is provided on the machine body. The input end of the filter pump is connected in communication with a pumping pipe. The pumping pipe is connected in communication with the bottom ends of the conveying groove and the output groove. A pumping groove connected in communication with the input end of the filter pump is formed on the side surface of the input groove. A drainage member for discharging clean water is provided on the semi-cylinder, which is convenient for flushing the waste materials in the input groove through the water outlet grooves on the side surface of the semi-cylinder. At the same time, by controlling the rotation angle of the semi-cylinder, the semi-cylinder can push the waste materials into the conveying groove, and assist in flushing the waste materials to the required position through the water outlet grooves for subsequent operations.

[0007] Preferably, the drainage member includes a rotating disk fixedly installed on the side surface of the semi-cylinder. The rotating disk is rotatably connected to the inner wall of the machine body. The output end of the filter pump is connected in communication with an output pipe. One end of the output pipe is coaxially and rotatably connected to the side surface of the rotating disk. A communication pipe for connecting the output pipe and the water outlet groove is formed on the rotating disk, which is convenient for discharging the clean water obtained after filtering the waste water.

[0008] Preferably, the crushing mechanism further includes a fixed cover fixedly installed inside the machine body. One end of the fixed cover away from the semi-cylinder is fixedly connected with a baffle. The outer wall of the semi-cylinder is rotationally fitted with the outer wall of one end of the fixed cover. A plurality of fixed frames are fixedly connected inside the fixed cover. A plurality of rotating shafts are rotatably connected to the fixed frames. A planetary gear reducer is coaxially arranged among the plurality of rotating shafts. A plurality of crushing knives are evenly fixedly installed on the outer walls of the plurality of rotating shafts. The driving member can drive the rotating shafts to rotate, facilitating the crushing of PP waste floating on the upper side of the water body by the crushing knives, adsorbing debris and dust by the water body, and at the same time pushing the crushed waste for conveying.

[0009] Preferably, the output mechanism includes a first screen fixedly installed below the baffle. The first screen is located between the conveying groove and the output groove. A partition table and a guide plate are fixedly connected inside the machine body. A control shaft is rotatably connected inside the machine body. A plurality of screening shovels are evenly fixedly connected to the outer wall of the control shaft. The outer wall of the screening shovel can fit and slide on the surfaces of the partition table and the guide plate. An auxiliary member for filtering and drying the output waste is provided on the machine body. The driving member can drive the control shaft to rotate, facilitating the filtering, drying and output of the crushed waste.

[0010] Preferably, the auxiliary member includes a storage box fixedly installed inside the machine body. A second screen is fixedly connected inside the storage box. The top surface of the second screen is inclined and flush with the top surface of the partition table. One end of the pumping pipe is connected and communicated with the bottom end of the storage box, facilitating the filtering and output of the output waste.

[0011] Preferably, the driving member includes a driving motor fixedly installed inside the machine body. The output end of the driving motor is coaxially fixedly connected with a driving shaft. A reciprocating lead screw is coaxially fixedly connected to the driving shaft. A driving gear is coaxially fixedly connected to the side surface of the semi-cylinder. A driving block is slidably connected horizontally inside the machine body. The reciprocating lead screw penetrates through the driving block and is threadedly connected to the driving block. A rack meshing with the driving gear is fixedly connected to the bottom of the driving block. A rotating member for driving the rotating shaft and the control shaft to rotate is provided on the driving shaft, facilitating the reciprocating rotation control of the semi-cylinder.

[0012] Preferably, the rotating member includes a worm coaxially fixedly installed at one end of the driving shaft. A worm gear meshing with the worm is coaxially fixedly connected to one end of the control shaft. The driving shaft is connected by a belt pulley to a transmission belt connected by a belt pulley on the rotating shaft, facilitating high-speed rotation of the rotating shaft while reducing the speed through the worm and worm gear, so that the rotation speed of the control shaft is reduced.

[0013] Preferably, the side surface of the crushing knife is provided with an inclined surface for pushing water and waste materials to move towards one side of the first screen, which is convenient for pushing water and waste materials to move towards one side of the first screen.

[0014] Preferably, the auxiliary member further includes a dryer fixedly installed above the storage box, and a box door is hinged on the side surface of the storage box, which is convenient for drying and outputting waste materials.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: A waste material recycling device for PP sheet production provided by the present invention solves the problem that it is difficult to synchronously clean and remove dust from waste materials during the crushing process when the existing waste material recycling device for PP sheet production is in use, and the use efficiency is relatively low. Through the flushing and conveying mechanism, the water outlet grooves on the side surface of the semi-cylinder flush the waste materials in the input groove, and at the same time, by controlling the rotation angle of the semi-cylinder, the semi-cylinder can push the waste materials towards the conveying groove. The water outlet grooves assist in flushing the waste materials to the required positions for subsequent operations. Through the crushing mechanism, the crushing knife crushes the PP waste materials floating on the upper side of the water body, and the water body adsorbs the debris dust, and at the same time, it pushes the crushed waste materials for conveying. Through the output mechanism, the crushed waste materials are filtered, dried and output, improving the automation degree and recycling efficiency. The overall structure of the device has a high automation degree, can utilize the buoyancy of the water body to convey and float the PP waste materials upwards, enhance the thrust required during the crushing process, ensure the crushing efficiency while realizing the functions of dust reduction and cleaning, and the water body is recycled, which is environmentally friendly and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a partial structural schematic diagram of the flushing and conveying mechanism of the present invention; Figure 3 is a partial structural schematic diagram of the crushing mechanism of the present invention; Figure 4 is Figure 3 an enlarged view of area A in Figure 5 is a partial structural schematic diagram of the output mechanism of the present invention; Figure 6 is Figure 5 an enlarged view of area B in Figure 7 is a partial structural schematic diagram of the driving member of the present invention; Figure 8 is Figure 7 an enlarged view of area C in Figure 9 is an exploded view of the partial structure of the crushing mechanism of the present invention; Figure 10 For Figure 9 the enlarged view of area D in the figure.

[0017] In the figure: 1 - body; 2 - input slot; 3 - conveying slot; 4 - output slot; 5 - semi-cylinder; 6 - water outlet slot; 7 - crushing knife; 8 - filtration pump; 10 - pumping pipe; 11 - pumping slot; 13 - rotating disk; 14 - output pipe; 15 - connecting pipe; 16 - fixed cover; 17 - baffle; 18 - fixing frame; 19 - rotating shaft; 20 - planetary gear reducer; 21 - first sieve; 22 - separating platform; 23 - guiding plate; 24 - control shaft; 25 - screening shovel; 27 - storage box; 28 - second sieve; 29 - driving motor; 30 - driving shaft; 31 - reciprocating screw rod; 32 - driving gear; 33 - driving block; 34 - rack; 35 - worm; 36 - worm gear; 37 - transmission belt; 38 - inclined plane; 39 - dryer; 40 - box door. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a waste recycling device for the production of PP plates, including a body 1, a flushing and conveying mechanism, a crushing mechanism, and an output mechanism. An input slot 2, a conveying slot 3, and an output slot 4 are opened in the body 1. The input slot 2, the conveying slot 3, and the output slot 4 are interconnected and are all used for storing water. The flushing and conveying mechanism includes a semi-cylinder 5 rotatably connected to the inner wall of the body 1. A water outlet slot 6 is opened on the side surface of the semi-cylinder 5. The flushing and conveying mechanism can flush the waste in the input slot 2 through the water outlet slot 6 on the side surface of the semi-cylinder 5. At the same time, by controlling the rotation angle of the semi-cylinder 5, the semi-cylinder 5 can push the waste into the conveying slot 3, and assist in flushing the waste to the required position through the water outlet slot 6 for subsequent operations. The crushing mechanism includes a plurality of groups of crushing knives 7 installed in the conveying slot 3. The crushing mechanism can crush the PP waste floating on the upper side of the water body through the crushing knives 7, and adsorb the debris and dust by the water body, while pushing the crushed waste for conveying. The output mechanism is installed in the body 1 and is used for filtering, drying, and outputting the crushed waste.

[0020] The flushing and conveying mechanism further includes a filter pump 8 fixedly installed in the machine body 1. The outer wall of the semi-cylinder 5 can rotatably fit with the surface of the input groove 2. A driving member for driving the semi-cylinder 5 to rotate and adjust is provided on the machine body 1. The input end of the filter pump 8 is connected with a suction pipe 10 in a communicating manner. The suction pipe 10 is connected with the bottom ends of the conveying groove 3 and the output groove 4. A suction groove 11 communicating with the input end of the filter pump 8 is formed on the side surface of the input groove 2. A drainage member for discharging clear water is provided on the semi-cylinder 5.

[0021] The drainage member includes a rotating disk 13 fixedly installed on the side surface of the semi-cylinder 5. The rotating disk 13 is rotatably connected with the inner wall of the machine body 1. The output end of the filter pump 8 is connected with an output pipe 14 in a communicating manner. One end of the output pipe 14 is coaxially and rotatably connected with the side surface of the rotating disk 13. A communicating pipe 15 for communicating the output pipe 14 with the water outlet groove 6 is formed on the rotating disk 13.

[0022] The crushing mechanism further includes a fixed cover 16 fixedly installed in the machine body 1. One end of the fixed cover 16 far away from the semi-cylinder 5 is fixedly connected with a baffle 17. The outer wall of the semi-cylinder 5 rotatably fits with the outer wall of one end of the fixed cover 16. A plurality of fixed frames 18 are fixedly connected in the fixed cover 16. A plurality of rotating shafts 19 are rotatably connected on the fixed frames 18. A planetary gear reducer 20 is coaxially arranged among the plurality of rotating shafts 19. A plurality of crushing knives 7 are uniformly fixedly installed on the outer walls of the plurality of rotating shafts 19. An inclined surface 38 for pushing the water body and the waste material to move towards the first screen 21 is provided on the side surface of the crushing knife 7. The driving member can drive the rotating shaft 19 to rotate.

[0023] The output mechanism includes a first screen 21 fixedly installed below the baffle 17. The first screen 21 is located between the conveying groove 3 and the output groove 4. A partition table 22 and a guide plate 23 are fixedly connected in the machine body 1. A control shaft 24 is rotatably connected in the machine body 1. A plurality of screening shovels 25 are uniformly fixedly connected to the outer wall of the control shaft 24. The outer walls of the screening shovels 25 can fit and slide with the surfaces of the partition table 22 and the guide plate 23. An auxiliary member for filtering and drying the output waste material is provided on the machine body 1. The driving member can drive the control shaft 24 to rotate.

[0024] The auxiliary member includes a storage box 27 fixedly installed in the machine body 1. A second screen 28 is fixedly connected in the storage box 27. The top surface of the second screen 28 is inclined and flush with the top surface of the partition table 22. One end of the suction pipe 10 is connected with the bottom end of the storage box 27 in a communicating manner. The auxiliary member further includes a dryer 39 fixedly installed above the storage box 27. A box door 40 is hinged to the side surface of the storage box 27.

[0025] The driving member includes a driving motor 29 fixedly installed in the machine body 1. The model of the driving motor 29 is preferably Y80M1-2. The output end of the driving motor 29 is coaxially and fixedly connected with a driving shaft 30. A reciprocating lead screw 31 is coaxially and fixedly connected to the driving shaft 30. A driving gear 32 is coaxially and fixedly connected to the side surface of the semi-cylinder 5. A driving block 33 is slidably connected in the machine body 1 in the horizontal direction. The reciprocating lead screw 31 penetrates through the driving block 33 and is threadedly connected to the driving block 33. A rack 34 meshing with the driving gear 32 is fixedly connected to the bottom of the driving block 33. A rotating member for driving the rotating shaft 19 and the control shaft 24 to rotate is provided on the driving shaft 30. The rotating member includes a worm 35 coaxially and fixedly installed at one end of the driving shaft 30. A worm gear 36 meshing with the worm 35 is coaxially and fixedly connected to one end of the control shaft 24. The driving shaft 30 is connected by a belt pulley to a transmission belt 37 that is belt-pulley connected to the belt pulley on the rotating shaft 19.

[0026] In this embodiment, clean water is filled into the machine body 1 so that the liquid level of the clean water is at a required distance below the rotating shaft 19. A set amount of PP sheet waste to be crushed and recycled is input into the machine body 1 from the input slot 2. The waste will float above the water body, causing the liquid level of the water body to rise. It is necessary to ensure that the liquid level of the water body after rising is still below the rotating shaft 19. Start the filtration pump 8 so that the suction pipe 10 and the suction tank 11 respectively suck the input slot 2, the conveying slot 3, the output slot 4, and the bottom of the storage tank 27. The filtered impurities are stored in the collection tank of the filtration pump 8. The filtered water body is then conveyed to the connecting pipe 15 through the output pipe 14 and discharged through the water outlet slot 6. When feeding, the arc surface side of the semi-cylinder 5 rotates to a position close to the fixed cover 16, and the water outlet slot 6 on the flat surface side is inclined towards the input slot 2. Since the PP waste will float above the liquid level, at this time, the bottom end of the semi-cylinder 5 blocks, preventing the waste from diving and reaching the conveying slot 3. At this time, the water outlet slot 6 continuously discharges clean water, causing the water body in the input slot 2 to flow around, fully cleaning the waste, and pumping out and filtering the sewage through the suction tank 11, improving the cleaning efficiency.

[0027] Start the drive motor 29 to drive the drive shaft 30 to rotate. The drive shaft 30 drives the reciprocating lead screw 31 to make the drive block 33 slide horizontally back and forth, so that the rack 34 drives the drive gear 32 to rotate. During the reciprocating rotation of the drive gear 32, the semi-cylinder 5 can be driven to rotate reciprocally. When the arc surface of the semi-cylinder 5 rotates towards the input slot 2, the flat side of the semi-cylinder 5 presses the waste in the input slot 2 into the water body. As the semi-cylinder 5 rotates 90°, the waste can be pushed into the fixed cover 16 for subsequent crushing treatment. At this time, the water outlet slot 6 will drain water towards the fixed cover 16, and the water flow will push the floating waste to continuously move towards the position of the first screen 21, improving the efficiency of crushing and conveying. Then the semi-cylinder 5 rotates reversely by 90° and the subsequent feeding and flushing operations can be carried out again.

[0028] During the rotation of the drive shaft 30, the transmission belt 37 is driven to make the rotating shaft 19 rotate. The thread pitch of the reciprocating lead screw 31 is small, so that the moving speed of the drive block 33 is relatively slow during rapid rotation, while the rotating speed of the rotating shaft 19 on the side close to the transmission belt 37 is relatively fast. After being decelerated by the planetary gear reducer 20, the rotating speed of the adjacent rotating shaft 19 is reduced, and the rotational speed of the crushing knife 7 decreases successively towards the semi-cylinder 5. The torque of the lower rotational speed is relatively large, which will generate a strong crushing force on large pieces of waste. It should be noted that the rotational speed of the crushing knife 7 close to the semi-cylinder 5 is only lower than that of the other side, but its rotational speed is still relatively high, which can produce a good crushing effect on large pieces of waste. During the rotation of the crushing knife 7, a thrust force towards the first screen 21 will be generated on the water body through the inclined surface 38, assisting the waste to flow towards the first screen 21. During the movement of the waste, it will be gradually crushed by the faster crushing knife 7, and the waste particles gradually become smaller. At the same time, during the crushing process, the water body can fully float the waste and push it towards the position of the crushing knife 7. The dust generated by crushing and the impurities adhered to the waste will be adsorbed and collected by the water body.

[0029] The waste reaching the appropriate particle size passes through the first screen 21 and is then conveyed into the output slot 4. The drive shaft 30 drives the worm 35 to rotate, and the worm 35 drives the worm wheel 36 to make the control shaft 24 rotate. The control shaft 24 drives the screening shovel 25 to rotate to pick up the waste particles in the output slot 4 and filter out a part of the moisture, and then throw the waste particles above the second screen 28. While the waste rolls down on the second screen 28, the moisture is filtered into the storage box 27 below. The dryer 39 above can further dry the waste particles. Opening the box door 40 can discharge and recycle the dried waste particles.

[0030] It should be noted that the filtering pump 8 can pump and filter the impurity water bodies at the bottoms of the storage tank 27, the input tank 2, the conveying tank 3 and the output tank 4, and only need to clean the impurities filtered and collected in the filtering pump 8 regularly. The overall structure of the device has a high degree of automation, can use the buoyancy of the water body to convey and float the PP waste upwards, enhance the thrust required during the crushing process, ensure the crushing efficiency while realizing the functions of dust reduction and cleaning, and the water body is recycled, which is environmentally friendly and efficient.

[0031] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Waste recycling device for PP sheet production, characterized in that, Comprising: A machine body (1), an input slot (2), a conveying slot (3) and an output slot (4) are formed in the machine body (1), the input slot (2), the conveying slot (3) and the output slot (4) communicate with each other and are all used for storing water bodies; Further comprising: A flushing and conveying mechanism, the flushing and conveying mechanism includes a semi-cylinder (5) rotatably connected to the inner wall of the machine body (1), a water outlet slot (6) is formed in the side surface of the semi-cylinder (5), the flushing and conveying mechanism can flush the waste in the input slot (2) through the water outlet slot (6) on the side surface of the semi-cylinder (5), and at the same time, by controlling the rotation angle of the semi-cylinder (5), the semi-cylinder (5) can push the waste into the conveying slot (3), and assist in flushing the waste to the required position through the water outlet slot (6) for subsequent operations; A crushing mechanism, the crushing mechanism includes a plurality of groups of crushing knives (7) installed in the conveying slot (3), the crushing mechanism can crush the PP waste floating on the upper side of the water body through the crushing knives (7), adsorb the debris and dust by the water body, and at the same time push the crushed waste for conveying; An output mechanism, the output mechanism is installed in the machine body (1) and is used for filtering, drying and outputting the crushed waste.

2. The waste recycling device for PP sheet production according to claim 1, characterized in that: The flushing and conveying mechanism further includes a filtration pump (8) fixedly installed in the machine body (1), the outer wall of the semi-cylinder (5) can rotatably fit with the surface of the input slot (2), a driving member for driving the semi-cylinder (5) to rotate and adjust is provided on the machine body (1), the input end of the filtration pump (8) is connected in a communicating manner with a pumping pipe (10), the pumping pipe (10) is communicated with the bottom ends of the conveying slot (3) and the output slot (4), a pumping slot (11) communicated with the input end of the filtration pump (8) is formed in the side surface of the input slot (2), and a drainage member for discharging clear water is provided on the semi-cylinder (5).

3. The waste recycling device for PP sheet production according to claim 2, characterized in that: The drainage member includes a rotating disk (13) fixedly installed on the side surface of the semi-cylinder (5), the rotating disk (13) is rotatably connected to the inner wall of the machine body (1), the output end of the filtration pump (8) is connected in a communicating manner with an output pipe (14), one end of the output pipe (14) is coaxially and rotatably connected to the side surface of the rotating disk (13), and a communicating pipe (15) for communicating the output pipe (14) with the water outlet slot (6) is formed in the rotating disk (13).

4. The waste recycling device for PP sheet production according to claim 2, characterized in that: The crushing mechanism further includes a fixed cover (16) fixedly installed in the machine body (1). One end of the fixed cover (16) away from the semi-cylinder (5) is fixedly connected with a baffle (17). The outer wall of the semi-cylinder (5) is rotationally attached to the outer wall of one end of the fixed cover (16). A plurality of fixed frames (18) are fixedly connected in the fixed cover (16). A plurality of rotating shafts (19) are rotatably connected to the fixed frames (18). A planetary gear reducer (20) is coaxially arranged among the plurality of rotating shafts (19). A plurality of crushing knives (7) are evenly fixedly installed on the outer walls of the plurality of rotating shafts (19). The driving member can drive the rotating shafts (19) to rotate.

5. The waste recycling device for PP sheet production according to claim 4, characterized in that: The output mechanism includes a first screen (21) fixedly installed below the baffle (17). The first screen (21) is located between the conveying groove (3) and the output groove (4). A partition table (22) and a guide plate (23) are fixedly connected in the machine body (1). A control shaft (24) is rotatably connected in the machine body (1). A plurality of screening shovels (25) are evenly fixedly connected to the outer wall of the control shaft (24). The outer wall of the screening shovels (25) can fit and slide on the surfaces of the partition table (22) and the guide plate (23). An auxiliary member for filtering and drying the output waste is provided on the machine body (1). The driving member can drive the control shaft (24) to rotate.

6. The waste recycling device for PP sheet production according to claim 5, characterized in that: The auxiliary member includes a storage box (27) fixedly installed in the machine body (1). A second screen (28) is fixedly connected in the storage box (27). The top surface of the second screen (28) is inclined and flush with the top surface of the partition table (22). One end of the suction pipe (10) is connected and communicated with the bottom end of the storage box (27).

7. The waste recycling device for PP sheet production according to claim 6, characterized in that: The driving member includes a driving motor (29) fixedly installed in the machine body (1). The output end of the driving motor (29) is coaxially fixedly connected with a driving shaft (30). A reciprocating lead screw (31) is coaxially fixedly connected to the driving shaft (30). A driving gear (32) is coaxially fixedly connected to the side surface of the semi-cylinder (5). A driving block (33) is slidably connected in the machine body (1) along the horizontal direction. The reciprocating lead screw (31) passes through the driving block (33) and is threadedly connected to the driving block (33). A rack (34) meshing with the driving gear (32) is fixedly connected to the bottom of the driving block (33). A rotating member for driving the rotating shafts (19) and the control shaft (24) to rotate is provided on the driving shaft (30).

8. The waste recycling device for PP sheet production according to claim 7, wherein: The rotating member includes a worm (35) coaxially fixedly installed at one end of the driving shaft (30). A worm gear (36) meshing with the worm (35) is coaxially fixedly connected to one end of the control shaft (24). The driving shaft (30) is connected by a belt pulley to a transmission belt (37) that is belt pulley connected to the belt pulley on the rotating shaft (19).

9. The waste recycling device for PP sheet production according to claim 5, characterized in that: The side of the crushing knife (7) is provided with an inclined surface (38) for pushing water and waste to move towards the side of the first screen (21).

10. The waste recycling device for PP sheet production according to claim 6, characterized in that: The auxiliary member further includes a dryer (39) fixedly installed above the storage box (27), and a box door (40) is hinged to the side of the storage box (27).

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