Leftover material recycling system of hollow plate production line

Abstract

The utility model relates to the field of rim charge recycling, and particularly discloses a rim charge recycling system of a hollow plate production line, the rim charge recycling system comprises a crushing assembly, the crushing assembly comprises a box body, a crushing roller, a first motor and a transmission part, and a discharging opening is formed in the box body; the crushing roller is arranged on the box body and rotationally connected with the box body, the first motor is fixedly connected with the box body, the output end of the first motor is connected with one end of the crushing roller, and the transmission part is fixedly connected with the other end of the crushing roller; and the input end of the conveying assembly is located at the discharging opening, and the output end of the conveying assembly is located at a feeding barrel of the extrusion forming machine. The leftover material recycling device has the advantages that leftover materials do not need to be collected and sorted, leftover materials left after cutting can be directly crushed into leftover material particles, resource waste is avoided, the leftover material recycling efficiency is improved, and therefore the production efficiency of a hollow plate production line is improved.

Description

Technical Field

[0001] The present application relates to the field of edge material recycling, and in particular to a system for recycling edge material of a hollow board production line. Background Art

[0002] Hollow board is a commonly used building board with the characteristics of light weight, strong and heat insulation. It is widely used in building structures such as walls, partitions, roofs and floors. The common production method of hollow board is to use an extruder to extrude the molten plastic material into a plate shape, and then cut it into hollow boards of the required size after cooling.

[0003] During the production process of hollow boards, a large amount of scraps are generated. These scraps are usually regarded as waste and are collected and sent to recycling plants. The current recycling technologies for scraps include mechanical recycling and chemical recycling. Among them, mechanical recycling is firstly to collect the scraps manually, then use the conveyor belt system to transport them to mechanical equipment, use the mechanical equipment to break the scraps into particles, and finally add them to fresh raw materials for reuse.

[0004] Although this mechanical recycling effectively solves the problems of resource waste and environmental pollution, this manual operation method requires operators to manually collect and sort, which is inefficient and prone to errors, resulting in low production efficiency and resource waste. Utility Model Content

[0005] In order to improve the problem that the recycling of scraps requires manual collection and sorting, resulting in low production efficiency and waste of resources, the present application provides a system for recycling scraps of hollow board production lines.

[0006] The present application provides a hollow board production line edge material recycling system adopts the following technical solution:

[0007] A hollow board production line edge material recycling system, comprising:

[0008] A crushing assembly, the crushing assembly comprising a box, a crushing roller, a first motor and a transmission member, the box being provided with a feeding port; the crushing roller being provided on the box and being rotatably connected to the box, the first motor being fixedly connected to the box, and the output end of the first motor being connected to the crushing roller;

[0009] A transport component, wherein the input end of the transport component is located at the feed port, and the output end of the transport component is located at the feed barrel of the extruder.

[0010] By adopting the above technical scheme, by setting up a crushing component at the discharge port of the extruder and a transport component on one side of the extruder, there is no need to collect and sort the edge materials. The edge materials remaining after cutting can be directly crushed into edge material particles, avoiding waste of resources, improving the recovery efficiency of edge materials, and thus improving the production efficiency of the hollow board production line.

[0011] Optionally, it also includes a feeding assembly, which includes a recovery drum, a conveying member and a blocking block, the recovery drum is connected to the output end of the transport assembly, the conveying member is arranged on the recovery drum, the conveying member input end is connected to the recovery drum, the conveying member output end is connected to the feed drum, a support frame is fixed on the recovery drum, and a discharge port is opened at the bottom of the recovery drum; the blocking block is arranged in the discharge port, and the blocking block is detachably connected to the support frame.

[0012] By adopting the above technical solution, through the provision of recovery cylinders, conveying parts and blocking blocks, it is possible to choose to collect the crushed side material particles uniformly and separately according to different usage scenarios, or to continuously and evenly feed the side material particles directly into the feed cylinder and feed the side material particles into the extruder together with new raw materials.

[0013] Optionally, a dust suction component is also included, which includes a mounting frame, a dust suction hood and an exhaust fan. The dust suction hood is installed above the crusher through the mounting frame, and the dust suction hood is connected to the exhaust end of the exhaust fan.

[0014] By adopting the above technical scheme, the dust suction component can absorb and collect the debris and dust generated by the crushing component in the process of crushing the edge material, thereby preventing dust pollution and also preventing the debris generated by the crushing of the edge material from damaging the finished hollow board.

[0015] Optionally, the dust collection assembly further includes a dust collection box, the dust collection box includes a bent tube, a pull-out plate and a filter element, one end of the bent tube is connected to the air outlet end of the exhaust fan, the other end of the bent tube is provided with an air outlet, the filter element is arranged on the air outlet, and the filter element is detachably connected to the bent tube;

[0016] The bending tube is provided with a recovery port at the bending part, the pull-out plate is arranged in the recovery port, and the pull-out plate can block the recovery port; the side wall of the bending tube is provided with a slide groove, and the pull-out plate is slidably matched with the slide groove.

[0017] By adopting the above technical solution, the dust collecting box can be used to separate the debris and dust entrained by the airflow generated by the exhaust fan, and the debris can be recycled, thereby improving the recycling efficiency of the side materials.

[0018] Optionally, the filter element includes a filter plate, a filter element and a mounting frame, the filter plate is detachably connected to the bending tube, the mounting frame is arranged at both ends of the filter plate, the mounting frame is fixedly connected to the filter plate, and the filter element is detachably connected to the filter plate through the mounting frame.

[0019] By adopting the above technical solution, the dust will be intercepted by the filter element and the filter plate through the filter plate and the filter element, thereby preventing the dust generated by the crushing of the edge materials from spreading, thereby reducing the pollution and harm of the dust to the environment and operators.

[0020] Optionally, the dust box further comprises a discharge hopper and a sealing plate, the discharge hopper is arranged below the bending tube and fixedly connected to the bending tube, the bending tube is connected to the discharge hopper through a recovery port, the discharge hopper is provided with a first discharge port on one side close to the recovery tube, and a second discharge port on the other side, the first discharge port is connected to the recovery tube;

[0021] The sealing plate is arranged on the discharge hopper and is rotatably connected to the discharge hopper. When the sealing plate is rotated toward one side of the recovery barrel, the sealing plate is used to block the first discharge port; when the sealing plate is rotated toward the other side, the sealing plate is used to block the second discharge port.

[0022] By adopting the above technical solution, the slag in the bending tube can be recycled by setting the discharge hopper and the sealing plate. The slag can be introduced into the edge material particles and sent into the feed tube together, or the slag can be collected separately.

[0023] Optionally, the dust suction assembly also includes a water tank, which is arranged on one side of the extruder. An air inlet pipe, an air outlet pipe and a drain pipe are fixedly provided on the water tank. One end of the air inlet pipe is connected to the air outlet end of the exhaust fan, and the other end of the air inlet pipe extends to the interior of the water tank.

[0024] By adopting the above technical solution, through the water tank that is set up, when the gas blown out by the exhaust fan passes through the water tank, the debris and dust therein will be captured by the water and deposited in the water, thereby reducing the dust concentration in the gas and preventing the dust generated by the crushing of the edge materials from spreading, thereby reducing the pollution and harm of the dust to the environment and operators.

[0025] Optionally, a loading port is provided on the top surface of the box body, a collecting basket is provided at the loading port, and the baffle plate is also fixed on the collecting basket.

[0026] By adopting the above technical solution, the arranged collecting basket and the material blocking plate can ensure that the edge materials enter the box body and are crushed by the crushing roller, and more edge materials can be accommodated at the same time.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By installing a crushing component at the discharge port of the extruder and a transport component on one side of the extruder, there is no need to collect and sort the edge materials. The edge materials left after cutting can be directly crushed into edge material particles, thus avoiding waste of resources and improving the recovery efficiency of edge materials, thereby improving the production efficiency of the hollow board production line;

[0029] 2. Through the recovery cylinder, conveyor and blocking block, it can be realized that according to different usage scenarios, the crushed edge material particles can be collected uniformly and separately, or the edge material particles can be continuously and evenly fed directly into the feed cylinder, so that the edge material particles can be fed into the extruder together with the new raw materials;

[0030] 3. The dust collection component can absorb and collect the debris and dust generated by the crushing component in the process of crushing the edge materials, thereby preventing dust pollution and also preventing the debris generated by the crushing of the edge materials from damaging the finished hollow board. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the scrap recycling system in Example 1 of the present application.

[0032] Figure 2 It is a schematic diagram of the explosion of the crushing assembly in Example 1 of the present application.

[0033] Figure 3 It is a schematic diagram of the overall structure of the crushing component, transportation component and dust collection component in Example 1 of the present application.

[0034] Figure 4 It is a schematic diagram of an explosion of the dust collecting box in Example 1 of the present application.

[0035] Figure 5 It is a half-section schematic diagram of the feeding assembly, dust collecting box and other parts in Example 1 of the present application.

[0036] Figure 6 It is a schematic diagram of the structure of the feeding assembly in Example 1 of the present application.

[0037] Figure 7 It is a schematic diagram of the overall structure of the scrap recycling system in Example 2 of the present application.

[0038] Reference numerals:

[0039] 1. Crushing assembly; 11. Box; 12. Crushing roller; 13. First motor; 14. Transmission member; 15. Collection basket; 16. Material blocking plate; 111. Feeding port; 112. Support plate; 121. First crushing roller; 122. Second crushing roller; 141. Driving gear; 142. Driven gear;

[0040] 2. Transport component; 21. First transport member; 22. Second transport member;

[0041] 3. Feeding assembly; 31. Recovery cylinder; 32. Conveying member; 33. Blocking block; 311. Support frame; 312. Discharging port;

[0042] 4. Dust collection assembly; 41. Mounting frame; 42. Dust hood; 43. Exhaust fan; 431. Bracket; 44. Dust box; 441. Bend pipe; 4411. Air outlet; 4412. Slide; 4413. Recovery port; 442. Pull-out plate; 443. Filter element; 4431. Filter plate; 4432. Filter element; 4433. Mounting frame; 444. Discharge hopper; 4441. Support rod; 4442. First discharge port; 4443. Second discharge port; 445. Sealing plate; 45. Water tank; 451. Air inlet pipe; 452. Air outlet pipe; 453. Drain pipe; 46. Exhaust pipe. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-7 This application is described in further detail.

[0044] Example 1

[0045] The embodiment of the present application discloses a system for recycling waste material of a hollow board production line.

[0046] Reference Figure 1 The hollow board production line edge material recycling system includes a crushing component 1, a transport component 2, a feeding component 3 and a dust collecting component 4. The crushing component 1 is arranged on one side of the discharge port of the extruder, the transport component 2 is arranged on one side of the extruder, and the input end of the transport component 2 is located below the crushing component 1, and the output end of the transport component 2 is located above the feeding component 3. The dust collecting component 4 is mounted above the crushing component 1, and the feeding component 3 is arranged on one side of the feed barrel of the extruder and is connected to the feed barrel.

[0047] In this embodiment, the crushing component 1 can directly crush the remaining edge materials after cutting into particles, the transportation component 2 can transport these particles to the feeding component 3, and the dust collection component 4 can absorb and collect the debris and dust generated by the crushing component 1 in the process of crushing the edge materials, thereby preventing dust pollution and avoiding the debris generated by the crushing of the edge materials from damaging the finished hollow board. The feeding component 3 can collect the particles and debris separately, and can also send the particles and debris into the feed barrel and send them into the extruder together with new raw materials.

[0048] Reference Figure 1 and Figure 2 The crushing assembly 1 includes a box body 11, a material baffle plate 16, a collecting basket 15, a crushing roller 12, a first motor 13 and a transmission member 14. A support plate 112 is fixedly provided on the box body 11. The box body 11 is arranged on one side of the extruder through the support plate 112. A loading port is provided on the top surface of the box body 11, and a unloading port 111 is provided on the bottom surface of the box body 11.

[0049] The baffle plate 16 is fixedly connected to the collecting basket 15, and the baffle plate 16 can block the remaining edge materials after cutting to ensure that the edge materials can fall into the crushing roller 12. The collecting basket 15 is fixedly connected to the loading port, and the collecting basket 15 is connected to the loading port. The opening at the upper end of the collecting basket 15 is much larger than the loading port of the box body 11, thereby ensuring that the edge materials can fall into the crushing roller 12 and can accommodate more edge materials at the same time.

[0050] In the embodiment of the present application, two groups of crushing rollers 12 are arranged at the loading port of the box body 11. The two groups of crushing rollers 12 are arranged in parallel and are both rotatably connected to the box body 11. The two groups of crushing rollers 12 are respectively a first crushing roller 121 and a second crushing roller 122. The first motor 13 is fixedly connected to the box body 11, and the output end of the first motor 13 is fixedly connected to one end of the first crushing roller 121.

[0051] The transmission member 14 includes a driving gear 141 fixedly connected to the end of the first crushing roller 121 away from the motor and a driven gear 142 fixedly connected to one end of the second crushing roller 122. The driving gear 141 is meshed with the driven gear 142, so that when the motor drives the first crushing roller 121 to rotate, the second crushing roller 122 can rotate in the opposite direction, thereby crushing the edge material into particles.

[0052] Reference Figure 1 , Figure 2 and Figure 3 The transport component 2 includes a first conveying member 21 and a second conveying member 22. In the present embodiment, the first conveying member 21 and the second conveying member 22 can both adopt screw conveyors. The screw conveyors can seal the particles inside the pipeline for transport, effectively reducing the diffusion of particle dust and reducing the pollution and harm of particle dust to the environment and operators.

[0053] The first conveying member 21 is arranged below the box body 11, and the input end of the first conveying member 21 is connected to the feed port 111, the second conveying member 22 is arranged on one side of the extruder, and the input end of the second conveying member 22 is connected to the output end of the first conveying member 21, and the output end of the second conveying member 22 is located at the feed barrel of the extruder, so that the edge material can be recycled when producing hollow plates.

[0054] Reference Figure 3 , Figure 4 and Figure 5 The dust collection assembly 4 includes a mounting frame 41, a dust hood 42, an exhaust pipe 46, an exhaust fan 43 and a dust box 44. The dust hood 42 is mounted above the collection basket 15 through the mounting frame 41. The dust hood 42 is fixedly connected to the mounting frame 41. A bracket 431 is fixedly provided on the exhaust fan 43. The exhaust fan 43 is mounted on one side of the extruder through the bracket 431. The dust hood 42 and the exhaust end of the exhaust fan 43 are connected together through the exhaust pipe 46.

[0055] The dust box 44 includes a bent tube 441, a discharge hopper 444, a pull-out plate 442, a filter element 443 and a sealing plate 445. The bent tube 441 is arranged on one side of the recovery tube 31. One end of the bent tube 441 is connected to the air outlet end of the exhaust fan 43 through the exhaust pipe 46. The other end of the bent tube 441 is provided with an air outlet 4411, and the air outlet 4411 is detachably connected with a filter element 443.

[0056] The bending tube 441 is provided with a recovery port 4413 at the bending part, and a slide groove 4412 is provided on one side arm of the bending tube 441. The pull-out plate 442 is arranged in the recovery port 4413 and can completely block the recovery port 4413. One end of the pull-out plate 442 passes through the slide groove 4412 and extends to the outside of the bending tube 441, and the pull-out plate 442 is slidably connected to the slide groove 4412. A handle is fixed on the end surface of the pull-out plate 442 extending to the outside of the bending tube 441, so as to facilitate the control of the pull-out plate 442 to open the recovery port 4413 or block the recovery port 4413.

[0057] In the embodiment of the present application, the bending tube 441 is a U-shaped bending tube. When the airflow generated by the exhaust fan 43 will entrain the debris and dust generated in the process of crushing the edge materials into the bending tube 441, the flow direction of the airflow is to enter from one end of the bending tube 441, pass through the bending part of the bending tube 441, and then be discharged from the air outlet 4411 at the other end of the bending tube 441.

[0058] Due to the uneven distribution of air velocity in curved pipes, larger particles in the air flow are more susceptible to the vortex and centrifugal force of the air flow. The inertia of larger particles in the air flow will make them tend to maintain their original state of motion and not easily follow the changing flow direction of the air flow. Therefore, larger particles will be retained at the bend, unlike smaller particles in the air flow, which can more easily follow the flow of the fluid and pass through the bend.

[0059] Therefore, when the airflow generated by the exhaust fan 43 carries the debris and dust through the bent part, the debris will be retained in the bent part, while the dust will be trapped in the filter element 443. This can not only reduce the pollution and harm of the dust to the environment and operators, but also recycle the debris and dust generated by the crushed edge materials, thereby reducing costs and reducing waste of resources.

[0060] The filter element 443 includes a filter plate 4431, a filter element 4432 and a mounting frame 4433. In the embodiment of the present application, the filter element 4432 can adopt a sponge filter element 4432. Mounting frames 4433 are provided at both ends of the filter plate 4431. The mounting frame 4433 is fixedly connected to the filter plate 4431. The filter element 4432 is detachably connected to the filter plate 4431 through the mounting frame 4433. The filter plate 4431 is detachably mounted on the air outlet 4411 of the bending tube 441 through a hexagonal bolt.

[0061] The discharge hopper 444 is fixed with a support rod 4441, and the discharge hopper 444 is erected under the bending tube 441 through the support rod 4441 and fixedly connected to the bending tube 441. The bending tube 441 is connected to the discharge hopper 444 through the recovery port 4413. A first discharge port 4442 is opened on the side of the discharge hopper 444 close to the recovery tube 31, and the first discharge port 4442 is connected to the recovery tube 31. A second discharge port 4443 is opened on the other side of the discharge hopper 444.

[0062] The sealing plate 445 is arranged on the discharge hopper 444, and a rotating shaft is fixedly arranged at one end of the sealing plate 445. The sealing plate 445 is rotatably connected to the discharge hopper 444 through the rotating shaft. When the sealing plate 445 rotates toward the recovery cylinder 31, the first discharge port 4442 can be blocked; when the sealing plate 445 rotates toward the other side, the second discharge port 4443 can be blocked. A handle 4451 is fixedly arranged at one end of the rotating shaft to facilitate the control of the rotation of the sealing plate 445.

[0063] Reference Figure 5 and Figure 6The feeding assembly 3 includes a recovery drum 31, a conveying member 32 and a blocking block 33. A support frame 311 is fixedly provided at the bottom of the recovery drum 31. The recovery drum 31 is mounted on one side of the feed drum through the support frame 311. In the embodiment of the present application, the conveying member 32 can adopt a double-axis screw conveyor. The input end of the conveying member 32 is fixedly connected to the side of the recovery drum 31 facing the feed drum, and is communicated with the recovery drum 31. The output end of the conveying member 32 is fixedly connected to the feed drum, and is communicated with the feed drum. The conveying member 32 can continuously and evenly deliver the side material particles directly into the feed drum.

[0064] A discharge port 312 is provided at the bottom of the recovery cylinder 31, and a sealing block 33 is arranged in the discharge port 312, and the sealing block 33 is detachably connected to the support frame 311. When the crushed edge particles need to be collected separately, the conveying member 32 can be closed, the sealing block 33 can be removed, and a container can be placed under the support frame 311 to collect the particles separately.

[0065] The implementation principle of the hollow board production line scrap recycling system in the embodiment of the present application is: the scrap is directly crushed into scrap particles by the crushing roller 12 installed at the discharge port of the extruder, and then the scrap particles are collected and transported to the recycling drum 31 by the transport component 2. At the same time, the dust hood 42 set on the crushing roller 12 will discharge the debris and dust generated during the crushing process into the dust box 44 under the action of the exhaust fan 43. The dust box 44 is connected to the recycling drum 31. At the recycling drum 31, the scrap particles and scraps can be collected separately, and the scrap particles and scraps can also be sent to the feed drum and sent to the extruder together with new raw materials.

[0066] Example 2

[0067] The present application embodiment discloses a hollow board production line edge material recycling system. The difference between this embodiment and embodiment 1 is that Figure 7 The dust box 44 is configured as a water tank 45, which is configured on one side of the extruder. An air inlet pipe 451 and an air outlet pipe 452 are fixedly disposed on the top surface of the water tank 45. The air inlet pipe 451 and the air outlet pipe 452 are both connected to the water tank 45. One end of the air inlet pipe 451 is connected to the air outlet end of the exhaust fan 43 through the exhaust pipe 46, and the other end of the air inlet pipe 451 extends to the inside of the water tank 45. When water is poured into the water tank 45, the air inlet pipe 451 can be submerged under the water surface. In the embodiment of the present application, the airflow generated by the exhaust fan 43 will carry the debris and dust into the water tank 45 through the air inlet pipe 451, and the debris and dust in the airflow will be trapped in the water tank 45, and the airflow will be discharged from the water tank 45 through the air outlet pipe 452.

[0068] The drain pipe 453 is fixed on the water tank 45 and is located close to the bottom of the water tank 45. The drain pipe 453 is connected to the water tank 45. A valve is provided on the drain pipe 453. When water needs to be filled into the water tank 45, the drain pipe 453 can serve as a water filling port. After the water tank 45 has been used for a period of time, the water in the water tank 45 together with the trapped debris and dust can be discharged from the water tank 45 through the drain pipe 453.

[0069] The implementation principle of the hollow plate production line edge material recycling system in the embodiment of the present application is: under the action of the exhaust fan 43, the debris and dust generated in the crushing process of the crushing roller 12 can be discharged into the water tank 45, and the debris and dust will be trapped in the water tank 45 by water. Finally, after the water tank 45 has been used for a period of time, the debris and dust will be discharged from the water tank 45 together with the water through the drain pipe 453.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hollow board production line edge material recycling system, characterized in that ,include: A crushing assembly (1), the crushing assembly (1) comprising a housing (11), a crushing roller (12), a first motor (13) and a transmission member (14), the housing (11) being provided with a feed opening (111); the crushing roller (12) being provided on the housing (11) and being rotatably connected to the housing (11), the first motor (13) being fixedly connected to the housing (11), and an output end of the first motor (13) being connected to the crushing roller (12); A transport component (2), wherein the input end of the transport component (2) is located at the feed port (111), and the output end of the transport component (2) is located at the feed barrel of the extruder; The feeding assembly (3) further comprises a feeding assembly (3), the feeding assembly (3) comprising a recovery cylinder (31), a conveying member (32) and a blocking block (33); the recovery cylinder (31) is in communication with the output end of the transport assembly (2); the conveying member (32) is arranged on the recovery cylinder (31); the input end of the conveying member (32) is in communication with the recovery cylinder (31); the output end of the conveying member (32) is in communication with the feeding cylinder; a support frame (311) is fixedly arranged on the recovery cylinder (31); a discharge port (312) is provided at the bottom of the recovery cylinder (31); the blocking block (33) is arranged in the discharge port (312); the blocking block (33) is detachably connected to the support frame (311); It also comprises a dust collection assembly (4), the dust collection assembly (4) comprising a mounting frame (41), a dust collection hood (42) and an exhaust fan (43), the dust collection hood (42) being mounted above the crushing roller (12) via the mounting frame (41), the dust collection hood (42) being in communication with an exhaust end of the exhaust fan (43).

2. A hollow board production line edge material recycling system according to claim 1, characterized in that: The dust collection assembly (4) further comprises a dust collection box (44), the dust collection box (44) comprising a bent tube (441), a pull-out plate (442) and a filter element (443), one end of the bent tube (441) being in communication with an air outlet end of the exhaust fan (43), the other end of the bent tube (441) being provided with an air outlet (4411), the filter element (443) being arranged at the air outlet (4411), and the filter element (443) being detachably connected to the bent tube (441); The bending tube (441) is provided with a recovery port (4413) at the bending portion, the pull-out plate (442) is arranged in the recovery port (4413), and the pull-out plate (442) can block the recovery port (4413); a sliding groove (4412) is provided on the side wall of the bending tube (441), and the pull-out plate (442) is slidably matched with the sliding groove (4412).

3. A hollow board production line edge material recycling system according to claim 2, characterized in that: The filter element (443) comprises a filter plate (4431), a filter element (4432) and a mounting frame (4433); the filter plate (4431) is detachably connected to the bending tube (441); the mounting frame (4433) is arranged at both ends of the filter plate (4431); the mounting frame (4433) is fixedly connected to the filter plate (4431); and the filter element (4432) is detachably connected to the filter plate (4431) via the mounting frame (4433).

4. A hollow board production line edge material recycling system according to claim 2, characterized in that: The dust collecting box (44) further comprises a discharge hopper (444) and a sealing plate (445); the discharge hopper (444) is arranged below the bending tube (441) and is fixedly connected to the bending tube (441); the bending tube (441) is connected to the discharge hopper (444) through the recovery port (4413); a first discharge port (4442) is provided on one side of the discharge hopper (444) close to the recovery tube (31), and a second discharge port (4443) is provided on the other side; the first discharge port (4442) is connected to the recovery tube (31); The sealing plate (445) is arranged on the discharge hopper (444) and is rotatably connected to the discharge hopper (444); when the sealing plate (445) is rotated toward one side of the recovery barrel (31), the sealing plate (445) is used to block the first discharge port (4442); when the sealing plate (445) is rotated toward the other side, the sealing plate (445) is used to block the second discharge port (4443).

5. The hollow board production line edge material recycling system according to claim 1, characterized in that: The dust collection assembly (4) further comprises a water tank (45), the water tank (45) being arranged on one side of the extruder, the tank (45) being provided with an air inlet pipe (451), an air outlet pipe (452) and a drain pipe (453), one end of the air inlet pipe (451) being connected to an air outlet end of the exhaust fan (43), and the other end of the air inlet pipe (451) extending into the interior of the water tank (45).

6. A hollow board production line edge material recycling system according to claim 1, characterized in that: The top surface of the box body (11) is provided with a loading port, a collecting basket (15) is arranged at the loading port, and a material blocking plate (16) is fixedly arranged on the collecting basket (15).

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