Excess material recovery device for foam production
By designing a foam production residual material recycling device including a bracket, recycling device, fast card device and limiting mechanism, the problems of low residual material collection efficiency and cumbersome pipeline connections during the foam production process are solved, efficient residual material collection and pipeline maintenance are achieved, and the cleanliness and safety of the production environment is improved.
Patent Information
- Application Number
- CN202421771579.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-25
AI Technical Summary
The residual material generated during the existing foam production process is inefficient in collecting materials, and the pipeline connection and release operations are cumbersome, which affects production efficiency and safety.
A foam production residual material recovery device including a bracket, a recycling device, a fast card device and a limiting mechanism is designed. The fast card device achieves quick connection and release through connecting pipes, release sleeves, adapter frames and other components, and the limiting mechanism ensures the stability and safety of pipeline connections.
It improves the collection efficiency of residual materials during foam production, reduces manual cleaning workload, improves the cleanliness and safety of the production environment, simplifies the pipeline maintenance and replacement process, and reduces downtime.
Smart Images

Figure CN222901191U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of residual material recovery devices in foam production, and more specifically, to a residual material recovery device in foam production. Background Art
[0002] In the existing foam production technology, when foam is punched into finished products, due to the diversity of finished product shapes, such as round sheets, square sheets, etc., a large amount of waste material will inevitably be generated during the punching process. These waste materials are usually scattered on the ground and then need to be cleaned up manually. This manual cleaning method not only increases the workload, but also is inefficient, easily causing chaos in the working environment, and has an adverse effect on the labor intensity and health of workers.
[0003] In order to solve this problem, the prior art usually adopts a simple method of a fan plus a connecting pipe to collect the residual material generated in the foam production process. This method can improve the collection efficiency to a certain extent and facilitate subsequent processing. However, the pipe connection and release operations in this technology are usually cumbersome and require more time and labor.
[0004] Although some devices in the prior art use mechanisms that can achieve rapid docking and release between pipes, these mechanisms are often simple in structure and cannot ensure stable installation. Such unstable installation may cause the pipes to shake, fall off, and other problems during the collection process, affecting the collection efficiency and even posing a threat to production safety. Utility Model Content
[0005] 1. Technical issues to be resolved
[0006] In view of the problems existing in the prior art, the utility model provides a residual material recovery device for foam production to solve the technical problems mentioned in the background technology.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a residual material recovery device for foam production, comprising a bracket, characterized in that: a recovery device is arranged on the bracket, a mounting bin is arranged under the bracket, a quick-card device is connected to one side of the mounting bin, the quick-card device comprises a connecting tube, a release sleeve, an adapter frame, a sleeve, a movable groove, a guide frame, a plug-in mechanism, a guide groove, a sealing groove and a sealing plate, one end of the connecting tube can be removably inserted into the sleeve, the release sleeve can be movably sleeved on the outside of the sleeve, the adapter frame is fixedly arranged in the release sleeve, the sleeve is fixedly connected to one side of the recovery bin, the movable groove is opened on the side wall of the sleeve, and the guide frame can be movably sleeved on the outside of the sleeve. The guide groove is arranged in the adapter frame, the sealing groove is arranged in the sleeve, the sealing plate is fixedly connected to the outside of the connecting tube, and the sealing plate and the sealing groove are adapted, and a limiting mechanism is arranged on the outside of the connecting tube, the limiting mechanism comprises a movable block, a spring, a fixed block, a limiting plate, a giving groove, a limiting frame and a rotating sleeve, the movable block is fixedly connected to one side of the rotating sleeve, the two ends of the spring are respectively connected to the movable block and the fixed block, the fixed block is fixedly connected to the outside of the sleeve, the limiting plate is fixedly connected to the inside of the limiting frame, the giving groove is arranged on the rotating sleeve, the limiting frame is fixedly connected to one side of the release sleeve, and the rotating sleeve is movably arranged on the outside of the sleeve.
[0009] The utility model is further configured that a first push spring is provided on one side of the release sleeve, and the other end of the first push spring is in contact connection with the rotating sleeve.
[0010] The utility model is further configured such that the plug-in mechanism includes a second push spring, a plug-in rod and a plug-in slot, the plug-in rod is fixedly connected to one side of the guide frame, the other end of the plug-in rod passes through a movable slot and is inserted into the plug-in slot, the plug-in slot is opened on the outside of the connecting tube, and the second push spring is connected to one side of the plug-in rod.
[0011] The utility model is further configured such that the recycling device comprises a recycling box, a crushing bin and a feeding bin, the recycling box is detachably mounted in the mounting bin, the crushing bin is detachably mounted above the bracket, and the feeding bin is mounted on the crushing bin.
[0012] The utility model is further configured as follows: a crushing roller is movably provided in the crushing bin, a motor is provided on the bracket, a coupling is provided on one side of the motor, the output end of the motor is connected to the input end of the coupling, and the output end of the coupling is connected to one end of the crushing roller. The configuration of the above components can crush the foam.
[0013] The utility model is further configured that a handle is provided on one side of the recycling box, and the handle is fixedly connected to one side of the recycling box. The arrangement of the handle facilitates the use of the recycling box.
[0014] The utility model is further configured that a fan is provided at one side of the installation bin, and an input end of the fan is detachably connected via a connecting pipe and a sleeve, and the setting of the fan provides power for automatic material collection.
[0015] The utility model is further configured that a filter plate is provided at the input end of the sleeve, and the filter plate is detachably installed in the installation bin. The setting of the filter plate can prevent foam from entering into the connecting pipe.
[0016] (III) Beneficial effects
[0017] Compared with the prior art, the utility model provides a residual material recovery device for foam production, which has the following beneficial effects:
[0018] 1. The beneficial effects of the recycling device are reflected in its efficient material collection and pre-processing capabilities. Through the design of components such as the recycling box, crushing bin, feed bin, crushing roller, motor, coupling and filter plate, the recycling device can suck the residual materials generated in the foam production process into the feed bin through negative pressure, and crush them through the crushing roller to facilitate subsequent compression and recycling. This design not only improves the collection efficiency of residual materials, but also reduces the workload of manual cleaning, and improves the cleanliness and safety of the production environment.
[0019] 2. The beneficial effect of the quick-clip device lies in its ability to quickly connect and release pipes. Through the design of components such as connecting pipes, release sleeves, adapter frames, sleeves, movable grooves, guide frames, plug-in mechanisms and sealing plates, the quick-clip device can quickly connect and release when maintenance or replacement of pipes is required. This design makes pipeline maintenance easier, reduces downtime and improves production efficiency.
[0020] 3. The beneficial effect of the limiting mechanism is that it ensures the stability and safety of the pipeline connection. Through the design of components such as movable blocks, springs, fixed blocks, limiting plates, clearance grooves, limiting frames and rotating sleeves, the limiting mechanism can ensure that after the pipeline is connected, the connecting pipe will not move or fall off accidentally, thereby ensuring the stability and safety of the operation. When the pipeline needs to be replaced, the limiting mechanism can be quickly released and repositioned to ensure the accurate connection and use of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of a residual material recovery device for foam production in the utility model;
[0022] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;
[0023] Figure 3 It is a structural schematic diagram of the quick clamp device and the limiting mechanism in the utility model;
[0024] Figure 4 It is a cross-sectional structural diagram of the quick clamp device and the limiting mechanism in the utility model;
[0025] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.
[0026] In the figure: 1. bracket; 2. installation bin; 3. connecting pipe; 4. release sleeve; 5. adapter frame; 6. sleeve; 7. movable groove; 8. guide frame; 9. guide groove; 10. sealing groove; 11. sealing plate; 12. movable block; 13. spring; 14. fixed block; 15. limit plate; 16. give way groove; 17. limit frame; 18. rotating sleeve; 19. first push spring; 20. second push spring; 21. plug-in rod; 22. plug-in groove; 23. recycling box; 24. crushing bin; 25. feed bin; 26. crushing roller; 27. motor; 28. coupling; 29. handle; 30. fan; 31. filter plate. DETAILED DESCRIPTION
[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0030] See also Figure 1-5A residual material recovery device for foam production includes a bracket 1, which is characterized in that: a recovery device is arranged on the bracket 1, a mounting bin 2 is arranged below the bracket 1, and a quick-card device is connected to one side of the mounting bin 2, and the quick-card device includes a connecting pipe 3, a release sleeve 4, an adapter frame 5, a sleeve 6, a movable groove 7, a guide frame 8, a plug-in mechanism, a guide groove 9, a sealing groove 10 and a sealing plate 11, one end of the connecting pipe 3 can be detachably inserted into the sleeve 6, the release sleeve 4 can be movably sleeved on the outside of the sleeve 6, the adapter frame 5 is fixedly arranged in the release sleeve 4, the sleeve 6 is fixedly connected to one side of the recovery bin, the movable groove 7 is opened on the side wall of the sleeve 6, the guide frame 8 can be movably arranged in the guide groove 9, and the guide groove 9 is opened in the adapter frame 5, The sealing groove 10 is opened in the sleeve 6, the sealing plate 11 is fixedly connected to the outside of the connecting pipe 3, and the sealing plate 11 and the sealing groove 10 are adapted. A limiting mechanism is arranged on the outside of the connecting pipe 3, and the limiting mechanism includes a movable block 12, a spring 13, a fixed block 14, a limiting plate 15, a clearance groove 16, a limiting frame 17 and a rotating sleeve 18. The movable block 12 is fixedly connected to one side of the rotating sleeve 18, and the two ends of the spring 13 are respectively connected to the movable block 12 and the fixed block 14. The fixed block 14 is fixedly connected to the outside of the sleeve 6, the limiting plate 15 is fixedly connected to the inner side of the limiting frame 17, the clearance groove 16 is opened on the rotating sleeve 18, the limiting frame 17 is fixedly connected to one side of the release sleeve 4, and the rotating sleeve 18 is movably arranged on the outside of the sleeve 6.
[0031] A first push spring 19 is disposed on one side of the release sleeve 4 , and the other end of the first push spring 19 is in contact connection with the rotating sleeve 18 .
[0032] The plug-in mechanism includes a second push spring 20, a plug-in rod 21 and a plug-in slot 22. The plug-in rod 21 is fixedly connected to one side of the guide frame 8. The other end of the plug-in rod 21 passes through the movable slot 7 and is inserted into the plug-in slot 22. The plug-in slot 22 is opened on the outside of the connecting pipe 3, and the second push spring 20 is connected to one side of the plug-in rod 21.
[0033] In this embodiment, when the pipeline needs to be replaced or maintained, the rotating sleeve 18 is first rotated in the corresponding direction, and the rotating sleeve 18 drives the movable block 12 to move. The movable block 12 and the fixed block 14 cooperate to squeeze the spring 13. At the same time, the rotating sleeve 18 drives the clearance groove 16 to move. When the spring 13 is squeezed to the limit, the position of the clearance groove 16 corresponds to the position of the limit plate 15, and then the release sleeve 4 is pushed. The release sleeve 4 drives the limit frame 17 and the limit plate 15 to move, so that the limit plate 15 passes through the clearance groove 16. At the same time, the release sleeve 4 drives the adapter frame 5 to move. Due to the inclined structural design of the guide groove 9, when the guide groove 9 follows the adapter frame 5 to move, the second push spring 20 Reset, push the plug rod 21 to move in the movable groove 7, and at the same time, the plug rod 21 will drive the connecting pipe 3 to move outward through the plug rod 21, and then the guide frame 8 will drive the plug rod 21 to move outward, so that one end of the plug rod 21 gradually disengages from the plug groove 22, and at the same time, the release sleeve 4 will cooperate with the rotating sleeve 18 to squeeze the first push spring 19. When the first push spring 19 is squeezed to the limit, one end of the plug rod 21 just completely disengages from the plug groove 22, and the other limit plate 15 just moves to the top of the rotating sleeve 18, and then the rotating sleeve 18 is released, and the spring 13 pushes the movable block 12 to reset, so that the movable block 12 drives the rotating sleeve 18 to reset, thereby The limit plate 15 is engaged with one side of the rotating sleeve 18, and then the connecting pipe 3 is pulled out from the sleeve 6, and then the connecting pipe 3 is maintained or replaced. After the maintenance or replacement is completed, the corresponding connecting pipe 3 is reinserted into the sleeve 6, and then the rotating sleeve 18 is rotated again, so that the rotating sleeve 18 squeezes the spring 13 through the movable block 12, and then the position of the positioning groove 16 corresponds to the position of the limit plate 15, and the first push spring 19 pushes the release sleeve 4 to reset, and the release sleeve 4 drives the limit frame 17 and the limit plate 15 to reset, and at the same time, the release sleeve 4 drives the adapter frame 5 and the guide groove 9 to reset, and then the guide frame 8 will drive the plug rod 21 to reset, and then the plug rod 21 will gradually be inserted into the plug groove 22 Then, the plug-in rod 21 follows the guide frame 8 to move downward, and then the plug-in rod 21 squeezes the second push spring 20, and then the plug-in rod 21 moves in the movable groove 7 and drives the connecting pipe 3 to be pressed inward through the plug-in groove 22, so that the sealing plate 11 arranged on the outside of the connecting pipe 3 is inserted into the sealing groove 10 opened on the inner side of the sleeve 6, thereby ensuring the sealing of the connection while realizing the rapid connection of the pipeline, and then release the rotating sleeve 18, and the spring 13 drives the rotating sleeve 18 to reset again through the movable block 12, so that the corresponding limit plates 15 are engaged on both sides of the rotating sleeve 18, thereby forming a limit for the release sleeve 4 to prevent the release sleeve 4 from moving, thereby ensuring the stability of the pipeline connection.
[0034] See also Figure 1 and Figure 2As an implementation method of the recycling device: the recycling device includes a recycling box 23, a crushing bin 24 and a feeding bin 25, the recycling box 23 can be detachably installed in the installation bin 2, the crushing bin 24 can be detachably installed above the bracket 1, and the feeding bin 25 is installed on the crushing bin 24.
[0035] A crushing roller 26 is movably provided in the crushing bin 24 , a motor 27 is provided on the bracket 1 , a coupling 28 is provided on one side of the motor 27 , the output end of the motor 27 is connected to the input end of the coupling 28 , and the output end of the coupling 28 is connected to one end of the crushing roller 26 .
[0036] A handle 29 is provided on one side of the recycling box 23 , and the handle 29 is fixedly connected to one side of the recycling box 23 .
[0037] A fan 30 is provided on one side of the installation bin 2 , and an input end of the fan 30 is detachably connected via a connecting pipe 3 and a sleeve 6 .
[0038] A filter plate 31 is provided at the input end of the sleeve 6 , and the filter plate 31 is detachably installed in the installation bin 2 .
[0039] More specifically, when the equipment needs to be used, it can be connected to the feed bin 25 through an external suction pipe, or the feed bin 25 can be directly connected to the foam production and processing equipment, and then the fan 30 is turned on. The fan 30 draws air through the connecting pipe 3 to draw the recovery box 23 and the installation bin 2 into negative pressure, and then the foam residue will enter the feed bin 25 through the external suction pipe, and the motor 27 is turned on. The motor 27 drives the crushing roller 26 to operate through the coupling 28, so that the crushing roller 26 crushes the foam residue, and then the crushed foam residue will enter the recovery box 23 set in the installation bin 2. The filter plate 31 is set to prevent the crushed foam residue from entering the connecting pipe 3. When the recovery box 23 is full, the equipment is shut down, and then the recovery box 23 is taken out of the installation bin 2 through the handle 29, and then the crushed foam residue in the recovery box 23 is transported to the next process for compression and recovery, and then the recovery box 23 is put back into the installation bin 2, and the equipment can be started again with reference to the above steps.
[0040] In summary, when the overall equipment is in use or running: when the pipeline needs to be replaced or maintained, first rotate the rotating sleeve 18 in the corresponding direction, the rotating sleeve 18 drives the movable block 12 to move, the movable block 12 and the fixed block 14 cooperate to squeeze the spring 13, and at the same time the rotating sleeve 18 will drive the clearance groove 16 to move, when the spring 13 is squeezed to the limit, the position of the clearance groove 16 corresponds to the position of the limit plate 15, and then push the release sleeve 4, the release sleeve 4 drives the limit frame 17 and the limit plate 15 to move, so that the limit plate 15 passes through the clearance groove 16, and at the same time the release sleeve 4 will drive the adapter frame 5 to move, due to the inclined structural design of the guide groove 9, when the guide groove 9 follows the adapter frame 5 to move. , the second push spring 20 is reset, pushing the plug rod 21 to move in the movable groove 7, and at the same time the plug rod 21 will drive the connecting pipe 3 to move outward through the plug rod 21, and then the guide frame 8 will drive the plug rod 21 to move outward, so that one end of the plug rod 21 gradually disengages from the plug groove 22, and at the same time the release sleeve 4 will cooperate with the rotating sleeve 18 to squeeze the first push spring 19. When the first push spring 19 is squeezed to the limit, one end of the plug rod 21 just completely disengages from the plug groove 22, and the other limit plate 15 just moves to the top of the rotating sleeve 18, and then the rotating sleeve 18 is released, and the spring 13 pushes the movable block 12 to reset, so that the movable block 12 drives the rotating sleeve 18 to reset, The corresponding limit plate 15 is engaged with one side of the rotating sleeve 18, and then the connecting pipe 3 is pulled out from the sleeve 6, and then the connecting pipe 3 is maintained or replaced. After the maintenance or replacement is completed, the corresponding connecting pipe 3 is reinserted into the sleeve 6, and then the rotating sleeve 18 is rotated again, so that the rotating sleeve 18 squeezes the spring 13 through the movable block 12, and then the position of the positioning groove 16 corresponds to the position of the limit plate 15, and the first push spring 19 pushes the release sleeve 4 to reset, and the release sleeve 4 drives the limit frame 17 and the limit plate 15 to reset, and at the same time, the release sleeve 4 drives the adapter frame 5 and the guide groove 9 to reset, and then the guide frame 8 will drive the plug rod 21 to reset, and then the plug rod 21 will gradually be inserted into the plug slot 22, then the plug-in rod 21 follows the guide frame 8 to move downward, and then the plug-in rod 21 squeezes the second push spring 20, and then the plug-in rod 21 moves in the movable groove 7 and drives the connecting pipe 3 to be pressed inward through the plug-in groove 22, so that the sealing plate 11 arranged on the outside of the connecting pipe 3 is inserted into the sealing groove 10 opened on the inner side of the sleeve 6, thereby ensuring the sealing of the connection while realizing the quick connection of the pipeline, and then release the rotating sleeve 18, the spring 13 drives the rotating sleeve 18 to reset again through the movable block 12, so that the corresponding limit plates 15 are engaged on both sides of the rotating sleeve 18, thereby forming a limit for the release sleeve 4 to prevent the release sleeve 4 from moving, thereby ensuring the stability of the pipeline connection.
[0041] When the equipment needs to be used, it can be connected to the feed bin 25 through an external suction pipe, or the feed bin 25 can be directly connected to the foam production and processing equipment, and then the fan 30 is turned on. The fan 30 draws air through the connecting pipe 3 to draw the recovery box 23 and the installation bin 2 into negative pressure, and then the foam residue will enter the feed bin 25 through the external suction pipe, and the motor 27 is turned on. The motor 27 drives the crushing roller 26 to run through the coupling 28, so that the crushing roller 26 crushes the foam residue, and then the crushed foam residue will enter the recovery box 23 set in the installation bin 2. The filter plate 31 is set to prevent the crushed foam residue from entering the connecting pipe 3. When the recovery box 23 is full, the equipment is shut down, and then the recovery box 23 is taken out of the installation bin 2 through the handle 29, and then the crushed foam residue in the recovery box 23 is transported to the next process for compression and recovery, and then the recovery box 23 is put back into the installation bin 2, and the equipment can be started again with reference to the above steps.
[0042] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A residual material recovery device for foam production, comprising a bracket (1), characterized in that: The support (1) is provided with a recovery device, a mounting chamber (2) is provided below the support (1), a quick-clamp device is connected to one side of the mounting chamber (2), the quick-clamp device comprises a connecting pipe (3), a release sleeve (4), an adaptor frame (5), a sleeve (6), a movable groove (7), a guide frame (8), a plug-in mechanism, a guide groove (9), a sealing groove (10) and a sealing plate (11), the adaptor frame (5) is arranged in the release sleeve (4), the movable groove (7) is arranged in the side wall of the sleeve (6), the guide frame (8) is arranged in the guide groove (9), the guide groove (9) is arranged in the adaptor frame (5), the sealing groove (10) is arranged in the sleeve (6), and the sealing plate (11) is provided in the sleeve (6). 11) is connected to the outside of the connecting tube (3), and a limiting mechanism is arranged on the outside of the connecting tube (3), wherein the limiting mechanism comprises a movable block (12), a spring (13), a fixed block (14), a limiting plate (15), a clearance groove (16), a limiting frame (17) and a rotating sleeve (18), wherein the movable block (12) is connected to one side of the rotating sleeve (18), two ends of the spring (13) are connected to the movable block (12) and the fixed block (14), the fixed block (14) is connected to the outside of the sleeve (6), the limiting plate (15) is connected to the inside of the limiting frame (17), the clearance groove (16) is arranged on the rotating sleeve (18), and the limiting frame (17) is connected to one side of the release sleeve (4).
2. The residual material recovery device for foam production according to claim 1 is characterized in that: A first push spring (19) is provided on one side of the release sleeve (4), and the other end of the first push spring (19) is in contact connection with the rotating sleeve (18).
3. The residual material recovery device for foam production according to claim 2 is characterized in that: The plug-in mechanism comprises a second push spring (20), a plug-in rod (21) and a plug-in slot (22); the plug-in rod (21) is fixedly connected to one side of the guide frame (8); the other end of the plug-in rod (21) passes through the movable slot (7) and is inserted into the plug-in slot (22); the plug-in slot (22) is provided on the outside of the connecting pipe (3); and the second push spring (20) is connected to one side of the plug-in rod (21).
4. A residual material recovery device for foam production according to any one of claims 1 to 3, characterized in that: The recycling device comprises a recycling box (23), a crushing bin (24) and a feeding bin (25); the recycling box (23) is detachably mounted in the mounting bin (2); the crushing bin (24) is detachably mounted above the bracket (1); and the feeding bin (25) is mounted on the crushing bin (24).
5. The residual material recovery device for foam production according to claim 4 is characterized in that: A crushing roller (26) is movably provided in the crushing bin (24), a motor (27) is provided on the bracket (1), a coupling (28) is provided on one side of the motor (27), an output end of the motor (27) is connected to an input end of the coupling (28), and an output end of the coupling (28) is connected to one end of the crushing roller (26).
6. The residual material recovery device for foam production according to claim 5 is characterized in that: A handle (29) is provided on one side of the recovery box (23), and the handle (29) is fixedly connected to one side of the recovery box (23).
7. The residual material recovery device for foam production according to claim 6 is characterized by: A fan (30) is provided on one side of the installation bin (2), and an input end of the fan (30) is detachably connected via a connecting pipe (3) and a sleeve (6).
8. The residual material recovery device for foam production according to claim 7 is characterized in that: The input end of the sleeve (6) is provided with a filter plate (31), and the filter plate (31) is detachably installed in the installation bin (2).