Slow-resilience foaming material manufacturing device and preparation method thereof

Abstract

The invention belongs to the technical field of high polymer material processing and manufacturing, and discloses a slow-rebound foaming material manufacturing device and a preparation method thereof.The slow-rebound foaming material manufacturing device comprises a device body, a conveying belt is mounted in the device body, and belt pulleys are rotationally mounted in the two ends of the conveying belt through first rotating shafts correspondingly; wherein a first motor is installed at one end of one first rotating shaft, a portal frame is fixedly installed at the top end of the device body, a dust collection assembly is arranged at the bottom of the portal frame, a cutting knife is slidably installed in the portal frame, and a bottom plate is arranged below the cutting knife. The foam is conveyed to one side of the cutting knife through the conveying belt, the cutting knife moves downwards to cut the foam, meanwhile, the bottom plate moves upwards, abrasion between the cutting knife and the conveying belt can be reduced, the service life of equipment can be prolonged, and the cutting precision can be guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of polymer material processing and manufacturing, and specifically relates to a slow rebound foaming material manufacturing device and a preparation method thereof. Background Technique

[0002] Slow rebound foaming materials, also known as memory foam or viscoelastic foam, are a type of polymer material with unique mechanical properties. There are many types of such materials, mainly including polyurethane slow rebound foam (memory sponge), cross-linked polyolefin foam (PO foam), and all-water foaming slow rebound materials, etc. During the production process, they need to go through multiple processes, including but not limited to using foaming devices, cutting devices, recycling devices, and composite devices, etc.

[0003] After retrieval, such as the patent: CN213381896U, a foam flat cutting machine, includes a lifting system, a foam flat cutting system, and a foam conveying system. The lifting system includes a frame, a first screw lifting device, and a second screw lifting device. The frame straddles the left and right sides of the foam conveying system. The first screw lifting device is installed at the left end of the frame, and the second screw lifting device is installed at the right end of the frame. The foam flat cutting system includes a flat cutting head and a cutting knife device. The flat cutting head is installed on the first screw lifting device and the second screw lifting device. The cutting knife device is installed on the flat cutting head, and the cutting knife device is located above the foam conveying system for flat cutting the foam on the foam conveying system. The foam conveying system includes a conveyor belt device for conveying foam. This utility model has a high degree of lifting automation, stable lifting, high precision, and the foam is cut flat;

[0004] In the current foam cutting process, the foam is usually conveyed to the lower part of the cutting knife by a conveyor belt, and continuous cutting operations are achieved through the intermittent alternating operation of the cutting knife and the conveyor belt. However, during the cutting process, since the bottom of the cutting knife contacts the surface of the conveyor belt, it is easy to cause scratches, wear, and even damage to the surface of the conveyor belt. This not only shortens the service life of the conveyor belt, but also may cause the cutting knife to shift during cutting, thereby reducing the cutting accuracy, which directly affects the production quality of slow rebound foaming materials. Summary of the Invention

[0005] The purpose of the present invention is to provide a slow rebound foaming material manufacturing device and a preparation method thereof to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A slow rebound foaming material manufacturing device includes a device main body. A conveyor belt is installed inside the device main body. Pulley wheels are rotationally installed through first rotating shafts at both ends of the conveyor belt. One end of one of the first rotating shafts is installed with a first motor;

[0007] A gantry is fixedly mounted on the top of the device body, a dust collection assembly is provided at the bottom of the gantry, a cutting knife is slidably mounted inside the gantry, the cutting knife is arranged above the conveyor belt, a first threaded rod is connected to the internal thread of one side of the cutting knife, and a second motor is installed on the top of the first threaded rod;

[0008] A bottom plate is provided below the cutting knife and is slidably mounted inside the device body. An internal thread at one end of the bottom plate is connected to a second threaded rod, which is fixedly mounted on the bottom end of the first threaded rod.

[0009] As a further technical solution of the present invention, the dust suction assembly includes a first dust suction plate fixedly installed at the bottom of the gantry, and first dust suction tubes are evenly arranged inside the first dust suction plate. Each of the first dust suction tubes is fixedly connected by a first connecting tube, and a dust suction pump is installed at one end of the first connecting tube, and the dust suction pump is installed on the outer wall of the gantry.

[0010] As a further technical solution of the present invention, the first dust suction pipe is arranged obliquely toward one side of the cutting knife.

[0011] As a further technical solution of the present invention, a second dust collection plate is provided on one side of the first dust collection plate, second dust collection tubes are evenly installed inside the second dust collection plate, each of the second dust collection tubes is fixedly connected by a second connecting tube, a third connecting tube is installed on the top of the second connecting tube, and an end of the third connecting tube away from the second connecting tube is fixedly connected to the first connecting tube;

[0012] The internal thread on one side of the second dust collection plate is connected to the first reciprocating screw rod, one end of the first reciprocating screw rod is fixedly installed with a first bevel gear, the top end of the first bevel gear is meshed with a second bevel gear, and the second bevel gear is fixedly installed on the outer wall of the second threaded rod.

[0013] As a further technical solution of the present invention, the third connecting pipe is flexibly configured.

[0014] As a further technical solution of the present invention, a cleaning plate is provided on one side of the bottom plate, a mounting plate is installed inside the cleaning plate, and bristles are evenly installed on the bottom end of the mounting plate;

[0015] Both ends of the cleaning plate are fixedly connected to a connecting plate, and the two connecting plates are embedded in the inner wall of the device body. The inner wall of one of the connecting plates is threadedly connected to a second reciprocating screw, and one end of the second reciprocating screw is connected to a second rotating shaft through a bevel gear set. A pulley set is installed on the outer wall of the second rotating shaft, and the bottom of the pulley set is installed on the outer wall of the first rotating shaft.

[0016] As a further technical solution of the present invention, the mounting plate is slidably connected to the cleaning plate, and a spring is provided at the top end of the mounting plate.

[0017] As a further technical solution of the present invention, sliders are fixedly connected to both ends of the mounting plate, and guide blocks are provided on one side of the ends of the two sliders, and the two guide blocks are fixedly installed at the top end of the bottom plate.

[0018] As a further technical solution of the present invention, the two guide blocks are symmetrically arranged.

[0019] A preparation method of a slow-rebound foaming material manufacturing device includes the following steps:

[0020] S1: During operation, first place the slow-rebound foaming material to be cut on the top of the conveyor belt, and then control the first motor to start through the PLC. When the first motor starts, it drives the first rotating shaft to rotate, and the rotation of the first rotating shaft drives the rotation of the pulley. When the pulley rotates, the conveyor belt conveys the foam towards the side of the cutting knife.

[0021] S2: When the foam is conveyed below the cutting knife, the conveyor belt stops working, and then control the second motor to start through the PLC. When the second motor starts, it drives the first threaded rod to rotate, and the rotation of the first threaded rod drives the cutting knife to move downward to cut the foam. At the same time, the rotation of the first threaded rod drives the rotation of the second threaded rod, and when the second threaded rod rotates, it drives the bottom plate to move upward, so that the bottom plate moves into the conveyor belt and is at the same height as the surface of the conveyor belt to support the bottom of the foam.

[0022] S3: At the same time, start the dust suction pump. When the dust suction pump starts, it is connected through the first connecting pipe to make the first dust suction pipe generate negative pressure, suck away the dust generated during the cutting process, and connect the second connecting pipe and the first connecting pipe through the third connecting pipe to make the second dust suction pipe also generate negative pressure for dust suction.

[0023] S4: After cutting, the cutting knife moves upward to reset, the bottom plate moves downward to reset. At the same time, the rotation of the first threaded rod drives the rotation of the second bevel gear, the rotation of the second bevel gear drives the rotation of the first bevel gear, the rotation of the first bevel gear drives the rotation of the first reciprocating lead screw, and the rotation of the first reciprocating lead screw drives the second dust suction plate to reciprocate once, move a certain distance following the cut foam, and continuously suck dust at the position of the cut.

[0024] S5: Subsequently, the conveyor belt continues to move and convey the foam. When the first rotating shaft rotates, it drives the second rotating shaft to rotate through the pulley group. When the second rotating shaft rotates, it drives the second reciprocating lead screw to rotate through the bevel gear group. The rotation of the second reciprocating lead screw drives the connecting plate to move reciprocally. The movement of the connecting plate drives the movement of the cleaning plate. The movement of the cleaning plate drives the movement of the mounting plate and the bristles, so that the bottom end of the bristles contacts the surface of the bottom plate for cleaning.

[0025] S6: When the cleaning plate moves towards one side of the bottom plate, the movement of the cleaning plate drives the movement of the slider. When the slider moves to one side of the guide block, it slides towards the cleaning plate through the guidance of the guide block. The movement of the slider drives the movement of the mounting plate, so that the mounting plate reciprocally slides inside the cleaning plate to clean the surface of the bottom plate.

[0026] S7: Finally, continuous cutting operations are carried out through the intermittent and alternating work of the cutting knife and the conveyor belt.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. Through the setting of the bottom plate in the present invention, during operation, first place the slow-rebound foaming material to be cut on the top of the conveyor belt, and then start the first motor through PLC control. When the first motor starts, it drives the first rotating shaft to rotate. The rotation of the first rotating shaft drives the rotation of the pulley. When the pulley rotates, the conveyor belt conveys the foam towards one side of the cutting knife. When the foam is conveyed below the cutting knife, the conveyor belt stops working. Then start the second motor through PLC control. When the second motor starts, it drives the first threaded rod to rotate. The rotation of the first threaded rod drives the cutting knife to move downward to cut the foam. At the same time, the rotation of the first threaded rod drives the rotation of the second threaded rod. When the second threaded rod rotates, it drives the bottom plate to move upward, so that the bottom plate moves into the conveyor belt and is at the same height as the surface of the conveyor belt to support the bottom of the foam, which helps to reduce the wear between the cutting knife and the conveyor belt, not only can improve the service life of the equipment, but also ensure the cutting accuracy.

[0029] 2. Through the setting of the dust suction component in the present invention, during operation, start the dust suction pump. When the dust suction pump starts, it connects through the first connecting pipe to make the first dust suction pipe generate negative pressure, sucking away the dust generated during the cutting process, preventing dust from being generated during cutting. Since the foam dust particles are small and easy to be inhaled into the respiratory tract, long-term contact may cause occupational diseases, and the foam dust is flammable. When the concentration of the dust suspended in the air reaches the lower explosion limit, dust explosion may occur. sucking away the dust helps to improve the cleanliness and safety of the working environment.

[0030] 3. In the present invention, the top of the bottom plate is cleaned by the movement of the cleaning plate. After cutting, the cutting knife moves upward to reset, and at the same time, the bottom plate moves downward to reset. Subsequently, the conveyor belt continues to move to convey the foam. When the first rotating shaft rotates, it drives the second rotating shaft to rotate through the pulley group. When the second rotating shaft rotates, it drives the second reciprocating screw rod to rotate through the bevel gear group. The rotation of the second reciprocating screw rod drives the connecting plate to move reciprocally. The movement of the connecting plate drives the movement of the cleaning plate. The movement of the cleaning plate drives the movement of the mounting plate and the brush bristles, so that the bottom end of the brush bristles contacts the surface of the bottom plate for cleaning, preventing the debris of the foam from possibly adhering to the surface of the bottom plate after the foam is cut, resulting in additional friction between the cutting knife and the foam, thus causing burrs or unevenness on the cutting surface and affecting the cutting quality. Cleaning the surface of the bottom plate after cutting helps to remove residues and ensure the subsequent cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;

[0033] Figure 3 is a schematic diagram of the structure at the conveyor belt of the present invention;

[0034] Figure 4 is a schematic diagram of the structure at the first dust suction plate of the present invention;

[0035] Figure 5 is a schematic cross-sectional view of the structure at the first dust suction plate of the present invention; [[ID=2,3]]

[0036] Figure 6 is a schematic cross-sectional view of the structure at the cleaning plate of the present invention;

[0037] Figure 7 is a schematic diagram of the structure at the bottom plate of the present invention.

[0038] In the figure: 1, device main body; 2, conveyor belt; 3, pulley; 4, first rotating shaft; 5, first motor; 6, gantry; 7, second motor; 8, first threaded rod; 9, cutting knife; 10, bottom plate; 11, second threaded rod; 12, first dust suction plate; 13, first dust suction pipe; 14, first connecting pipe; 15, dust suction pump; 16, second dust suction plate; 17, second dust suction pipe; 18, second connecting pipe; 19, third connecting pipe; 20, first reciprocating screw rod; 21, first bevel gear; 22, second bevel gear; 23, cleaning plate; 24, mounting plate; 25, brush bristles; 26, connecting plate; 27, second reciprocating screw rod; 28, bevel gear group; 29, second rotating shaft; 30, pulley group; 31, spring; 32, slider; 33, guide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] As Figures 1 to 7 shown, in an embodiment of the present invention, a slow-rebound foaming material manufacturing device includes a device main body 1. Inside the device main body 1, a conveyor belt 2 is installed. Pulley wheels 3 are rotatably installed at both ends of the conveyor belt 2 through first rotating shafts 4. One end of one of the first rotating shafts 4 is installed with a first motor 5;

[0041] A gantry 6 is fixedly installed at the top of the device main body 1. A dust suction component is arranged at the bottom of the gantry 6. A cutting knife 9 is slidably installed inside the gantry 6. The cutting knife 9 is arranged above the conveyor belt 2. A first threaded rod 8 is threadedly connected to the inside of one side of the cutting knife 9. The top of the first threaded rod 8 is installed with a second motor 7;

[0042] A bottom plate 10 is arranged below the cutting knife 9. The bottom plate 10 is slidably installed inside the device main body 1. A second threaded rod 11 is threadedly connected to the inside of one end of the bottom plate 10. The second threaded rod 11 is fixedly installed at the bottom end of the first threaded rod 8.

[0043] The bottom plate 10 is preferably an engineering plastic (such as a PEEK board), which has the advantages of high hardness, high wear resistance and low friction coefficient, is suitable for long-term use, has high stability and low maintenance cost;

[0044] Holes are uniformly formed inside the conveyor belt 2. The bottom plate 10 is slidably connected with the holes;

[0045] The threads formed on the outer wall of the first threaded rod 8 and the threads formed on the outer wall of the second threaded rod 11 have opposite directions, so as to make the cutting knife 9 and the bottom plate 10 move relatively;

[0046] During operation, first, the slow-rebound foaming material (i.e., foam) to be cut is placed on the top of the conveyor belt 2. Then, the first motor 5 is started through PLC control. When the first motor 5 starts, it drives the first rotating shaft 4 to rotate. The rotation of the first rotating shaft 4 drives the rotation of the pulley wheel 3. When the pulley wheel 3 rotates, the conveyor belt 2 conveys the foam to one side of the cutting knife 9;

[0047] When the foam is conveyed to the lower part of the cutting knife 9, the conveyor belt 2 stops working. Then, the second motor 7 is started through PLC control. When the second motor 7 starts, it drives the first threaded rod 8 to rotate. The rotation of the first threaded rod 8 drives the cutting knife 9 to move downward to cut the foam. At the same time, the rotation of the first threaded rod 8 drives the rotation of the second threaded rod 11. When the second threaded rod 11 rotates, it drives the bottom plate 10 to move upward, so that the bottom plate 10 moves into the conveyor belt 2 and is at the same height as the surface of the conveyor belt 2, supporting the bottom of the foam, which helps to reduce the wear between the cutting knife 9 and the conveyor belt 2. This can not only improve the service life of the equipment but also ensure the cutting accuracy;

[0048] After cutting, the cutting knife 9 moves upward to reset, and the conveyor belt 2 continues to convey the foam. Continuous operation is carried out through the intermittent alternating work of the cutting knife 9 and the conveyor belt 2.

[0049] As Figures 1 to 5 shown, the dust suction component includes a first dust suction plate 12 fixedly installed at the bottom of the gantry 6. The inside of the first dust suction plate 12 is uniformly provided with first dust suction pipes 13. Each first dust suction pipe 13 is fixedly connected by a first connecting pipe 14. One end of the first connecting pipe 14 is installed with a dust suction pump 15, and the dust suction pump 15 is installed on the outer wall of the gantry 6.

[0050] During operation, the dust suction pump 15 is started. When the dust suction pump 15 starts, it is connected through the first connecting pipe 14 to make the first dust suction pipes 13 generate negative pressure, sucking away the dust generated during the cutting process, preventing dust from being generated during cutting. Since the foam dust particles are small (below PM10), they are easily inhaled into the respiratory tract and long-term exposure may cause occupational diseases. And the foam dust is flammable. When the dust concentration suspended in the air reaches the lower explosion limit (LEL), it may cause a dust explosion. sucking away the dust helps to improve the cleanliness and safety of the working environment.

[0051] As Figure 5 shown, one side of the first dust suction plate 12 is inclined towards the cutting knife 9.

[0052] The inclined first dust suction pipes 13 are closer to the movement track of the cutting knife 9, and can directly inhale the debris generated instantly during cutting, reducing splashing.

[0053] As Figures 1 to 5 shown, a second dust suction plate 16 is provided on one side of the first dust suction plate 12. The inside of the second dust suction plate 16 is uniformly installed with second dust suction pipes 17. Each second dust suction pipe 17 is fixedly connected by a second connecting pipe 18. The top of the second connecting pipe 18 is installed with a third connecting pipe 19. One end of the third connecting pipe 19 away from the second connecting pipe 18 is fixedly connected to the first connecting pipe 14;

[0054] The internal thread on one side of the second dust collection plate 16 is connected to the first reciprocating screw 20, and one end of the first reciprocating screw 20 is fixedly installed with a first bevel gear 21. The top end of the first bevel gear 21 is meshed with a second bevel gear 22, and the second bevel gear 22 is fixedly installed on the outer wall of the second threaded rod 11.

[0055] The second dust collecting plate 16 is movable. When in operation, the second connecting pipe 18 is connected to the first connecting pipe 14 through the third connecting pipe 19, so that the second dust collecting pipe 17 also generates negative pressure for dust collection.

[0056] After cutting, when the cutting knife 9 moves up and resets, the rotation of the first threaded rod 8 drives the rotation of the second bevel gear 22, and the rotation of the second bevel gear 22 drives the rotation of the first bevel gear 21. The rotation of the first bevel gear 21 drives the rotation of the first reciprocating screw 20. The rotation of the first reciprocating screw 20 drives the second dust suction plate 16 to move back and forth once. At the same time, the conveyor belt 2 continues to convey the foam, so that the second dust suction plate 16 moves a distance following the cut foam, and continuously sucks dust at the position of the cutting port to prevent the foam incision from releasing a large amount of debris due to material rebound or air flow disturbance after cutting. The second dust suction plate 16 follows the movement of dust suction, which helps to accurately capture the debris scattered after cutting and avoid secondary contamination or diffusion of the debris.

[0057] like Figure 4 and Figure 5 As shown, the third connecting pipe 19 is flexibly configured.

[0058] Ensure that the first connecting pipe 14 and the second connecting pipe 18 are connected during the movement of the second dust collecting plate 16 .

[0059] like Figure 4 and Figure 6 As shown, a cleaning plate 23 is provided on one side of the bottom plate 10, a mounting plate 24 is installed inside the cleaning plate 23, and bristles 25 are evenly installed on the bottom end of the mounting plate 24;

[0060] Both ends of the cleaning plate 23 are fixedly connected to a connecting plate 26, and the two connecting plates 26 are embedded in the inner wall of the device body 1. The inner wall of one of the connecting plates 26 is threadedly connected to a second reciprocating screw 27, and one end of the second reciprocating screw 27 is connected to a second rotating shaft 29 through a bevel gear set 28. A pulley set 30 is installed on the outer wall of the second rotating shaft 29, and the bottom of the pulley set 30 is installed on the outer wall of the first rotating shaft 4.

[0061] After cutting, the cutting knife 9 moves upward and resets, while the bottom plate 10 moves downward and resets. Subsequently, the conveyor belt 2 continues to move to convey the foam. When the first rotating shaft 4 rotates, it drives the second rotating shaft 29 to rotate through the pulley group 30. When the second rotating shaft 29 rotates, it drives the second reciprocating lead screw 27 to rotate through the bevel gear group 28. The rotation of the second reciprocating lead screw 27 drives the connecting plate 26 to move reciprocally. The movement of the connecting plate 26 drives the movement of the cleaning plate 23. The movement of the cleaning plate 23 drives the movement of the mounting plate 24 and the brush bristles 25, so that the bottom end of the brush bristles 25 contacts the surface of the bottom plate 10 for cleaning. This prevents debris of the foam from possibly adhering to the surface of the bottom plate 10 after the foam is cut, resulting in additional friction between the cutting knife and the foam, thereby causing burrs or unevenness on the cutting surface and affecting the cutting quality. Cleaning the surface of the bottom plate 10 after cutting helps to remove residues and ensure the subsequent cutting quality.

[0062] As Figure 6 shown, the mounting plate 24 is slidably connected to the cleaning plate 23, and a spring 31 is provided at the top end of the mounting plate 24.

[0063] The elastic potential energy of the spring 31 makes the mounting plate 24 always tend to move downward, ensuring that the brush bristles 25 are always in close contact with the top end of the bottom plate 10, which helps to improve the cleaning effect.

[0064] As Figure 4 and Figure 7 shown, both ends of the mounting plate 24 are fixedly connected with sliders 32, and on one side of the ends of the two sliders 32, guide blocks 33 are provided, and the two guide blocks 33 are fixedly installed at the top end of the bottom plate 10.

[0065] When the cleaning plate 23 moves to one side of the bottom plate 10, the movement of the cleaning plate 23 drives the movement of the slider 32. When the slider 32 moves to one side of the guide block 33, the guide block 33 guides the slider 32 to slide to one side of the cleaning plate 23. The movement of the slider 32 drives the movement of the mounting plate 24, so that the mounting plate 24 reciprocally slides inside the cleaning plate 23, further improving the cleaning effect.

[0066] As Figure 4 and Figure 7 shown, the two guide blocks 33 are symmetrically arranged.

[0067] The concave and convex parts between the two guide blocks 33 are staggered for reciprocating movement of the slider 32.

[0068] A preparation method of a slow rebound foaming material manufacturing device includes the following steps:

[0069] S1: During operation, first place the slow-rebound foam material to be cut on the top of the conveyor belt 2. Then, start the first motor 5 through PLC control. When the first motor 5 starts, it drives the first rotating shaft 4 to rotate. The rotation of the first rotating shaft 4 drives the rotation of the pulley 3. When the pulley 3 rotates, the conveyor belt 2 conveys the foam towards one side of the cutting knife 9.

[0070] S2: When the foam is conveyed below the cutting knife 9, the conveyor belt 2 stops working. Then, start the second motor 7 through PLC control. When the second motor 7 starts, it drives the first threaded rod 8 to rotate. The rotation of the first threaded rod 8 drives the cutting knife 9 to move downward to cut the foam. At the same time, the rotation of the first threaded rod 8 drives the rotation of the second threaded rod 11. When the second threaded rod 11 rotates, it drives the bottom plate 10 to move upward, so that the bottom plate 10 moves into the conveyor belt 2 and is at the same height as the surface of the conveyor belt 2 to support the bottom of the foam.

[0071] S3: At the same time, start the dust suction pump 15. When the dust suction pump 15 starts, it is connected through the first connecting pipe 14 to make the first dust suction pipe 13 generate negative pressure, sucking away the dust generated during the cutting process. And connect the second connecting pipe 18 and the first connecting pipe 14 through the third connecting pipe 19 to make the second dust suction pipe 17 also generate negative pressure for dust suction.

[0072] S4: After cutting, the cutting knife 9 moves upward to reset, and the bottom plate 10 moves downward to reset. At the same time, the rotation of the first threaded rod 8 drives the rotation of the second bevel gear 22. The rotation of the second bevel gear 22 drives the rotation of the first bevel gear 21. The rotation of the first bevel gear 21 drives the rotation of the first reciprocating lead screw 20. The rotation of the first reciprocating lead screw 20 drives the second dust suction plate 16 to reciprocate once, moving a certain distance following the cut foam, continuously sucking dust at the position of the cut.

[0073] S5: Subsequently, the conveyor belt 2 continues to move to convey the foam. When the first rotating shaft 4 rotates, it drives the second rotating shaft 29 to rotate through the pulley group 30 transmission. When the second rotating shaft 29 rotates, it drives the second reciprocating lead screw 27 to rotate through the bevel gear group 28 transmission. The rotation of the second reciprocating lead screw 27 drives the connecting plate 26 to reciprocate. The movement of the connecting plate 26 drives the movement of the cleaning plate 23. The movement of the cleaning plate 23 drives the movement of the mounting plate 24 and the brush bristles 25, so that the bottom end of the brush bristles 25 contacts the surface of the bottom plate 10 for cleaning.

[0074] S6: When the cleaning plate 23 moves towards one side of the bottom plate 10, the movement of the cleaning plate 23 drives the movement of the slider 32. When the slider 32 moves to one side of the guide block 33, it slides towards one side of the cleaning plate 23 through the guiding of the guide block 33. The movement of the slider 32 drives the movement of the mounting plate 24, so that the mounting plate 24 reciprocates and slides inside the cleaning plate 23 to clean the surface of the bottom plate 10.

[0075] S7: Finally, continuous cutting operations are carried out through the intermittent and alternating work of the cutting knife 9 and the conveyor belt 2.

[0076] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slow-rebound foaming material manufacturing device, comprising a device main body (1), characterized in that: Inside the device main body (1), a conveyor belt (2) is installed. At both ends of the conveyor belt (2), pulleys (3) are rotatably installed through first rotating shafts (4). One end of one of the first rotating shafts (4) is installed with a first motor (5). At the top of the device main body (1), a gantry (6) is fixedly installed. At the bottom of the gantry (6), a dust suction component is provided. Inside the gantry (6), a cutting knife (9) is slidably installed. The cutting knife (9) is arranged above the conveyor belt (2). Inside one side of the cutting knife (9), a first threaded rod (8) is threadedly connected. At the top of the first threaded rod (8), a second motor (7) is installed. Below the cutting knife (9), a bottom plate (10) is provided. The bottom plate (10) is slidably installed inside the device main body (1). Inside one end of the bottom plate (10), a second threaded rod (11) is threadedly connected. The second threaded rod (11) is fixedly installed at the bottom end of the first threaded rod (8).

2. The slow rebound foaming material manufacturing device according to claim 1, characterized in that: The dust suction component includes a first dust suction plate (12) fixedly installed at the bottom of the gantry (6). Inside the first dust suction plate (12), first dust suction pipes (13) are evenly arranged. Between each of the first dust suction pipes (13), they are fixedly connected through a first connecting pipe (14). One end of the first connecting pipe (14) is installed with a dust suction pump (15). The dust suction pump (15) is installed on the outer wall of the gantry (6).

3. The manufacturing device of a slow rebound foaming material according to claim 2, characterized in that: The first dust suction pipes (13) are inclined towards the cutting knife (9).

4. The slow rebound foaming material manufacturing device according to claim 2, characterized in that: On one side of the first dust suction plate (12), a second dust suction plate (16) is provided. Inside the second dust suction plate (16), second dust suction pipes (17) are evenly installed. Between each of the second dust suction pipes (17), they are fixedly connected through a second connecting pipe (18). At the top of the second connecting pipe (18), a third connecting pipe (19) is installed. The end of the third connecting pipe (19) far from the second connecting pipe (18) is fixedly connected to the first connecting pipe (14). Inside one side of the second dust suction plate (16), a first reciprocating lead screw (20) is threadedly connected. One end of the first reciprocating lead screw (20) is fixedly installed with a first bevel gear (21). At the top of the first bevel gear (21), a second bevel gear (22) is meshed. The second bevel gear (22) is fixedly installed on the outer wall of the second threaded rod (11).

5. The slow rebound foaming material manufacturing device according to claim 4, characterized in that: The third connecting pipe (19) is flexibly arranged.

6. The manufacturing device of a slow rebound foaming material according to claim 1, characterized in that: On one side of the bottom plate (10), a cleaning plate (23) is provided. Inside the cleaning plate (23), a mounting plate (24) is installed. At the bottom end of the mounting plate (24), bristles (25) are evenly installed. Both ends of the cleaning plate (23) are fixedly connected with connecting plates (26), and both of the connecting plates (26) are embedded in the inner wall of the device main body (1). A second reciprocating lead screw (27) is threadedly connected to the inner wall of one of the connecting plates (26). One end of the second reciprocating lead screw (27) is drivingly connected with a second rotating shaft (29) through a bevel gear set (28). A pulley set (30) is installed on the outer wall of the second rotating shaft (29), and the bottom of the pulley set (30) is installed on the outer wall of the first rotating shaft (4).

7. The manufacturing device of a slow rebound foaming material according to claim 6, characterized in that: The mounting plate (24) is slidably connected to the cleaning plate (23), and a spring (31) is arranged at the top end of the mounting plate (24).

8. The slow rebound foam material manufacturing device according to claim 6, characterized in that: Both ends of the mounting plate (24) are fixedly connected with sliders (32), and a guide block (33) is arranged on one side of the end of each of the two sliders (32). Both of the guide blocks (33) are fixedly installed at the top end of the bottom plate (10).

9. The manufacturing device of a slow rebound foaming material according to claim 8, characterized in that: The two guide blocks (33) are symmetrically arranged.

10. A preparation method of a slow rebound foaming material manufacturing device, which is applicable to the slow rebound foaming material manufacturing device described in claims 1-9 above, characterized in that, It includes the following steps: S1: During operation, first place the slow rebound foam material to be cut on the top of the conveyor belt (2), and then start the first motor (5) through PLC control. When the first motor (5) starts, it drives the first rotating shaft (4) to rotate. The rotation of the first rotating shaft (4) drives the rotation of the pulley (3). When the pulley (3) rotates, the conveyor belt (2) conveys the foam towards the side of the cutting knife (9). S2: When the foam is conveyed below the cutting knife (9), the conveyor belt (2) stops working, and then start the second motor (7) through PLC control. When the second motor (7) starts, it drives the first threaded rod (8) to rotate. The rotation of the first threaded rod (8) drives the cutting knife (9) to move downward to cut the foam. At the same time, the rotation of the first threaded rod (8) drives the rotation of the second threaded rod (11). When the second threaded rod (11) rotates, it drives the bottom plate (10) to move upward so that the bottom plate (10) moves into the conveyor belt (2) and is at the same height as the surface of the conveyor belt (2) to support the bottom of the foam. S3: At the same time, start the dust suction pump (15). When the dust suction pump (15) starts, it is connected through the first connecting pipe (14) to make the first dust suction pipe (13) generate negative pressure, suck away the dust generated during the cutting process, and connect the second connecting pipe (18) and the first connecting pipe (14) through the third connecting pipe (19) so that the second dust suction pipe (17) also generates negative pressure for dust suction. S4: After cutting, the cutting knife (9) moves upward to reset, the bottom plate (10) moves downward to reset. At the same time, the rotation of the first threaded rod (8) drives the rotation of the second bevel gear (22). The rotation of the second bevel gear (22) drives the rotation of the first bevel gear (21). The rotation of the first bevel gear (21) drives the rotation of the first reciprocating lead screw (20). The rotation of the first reciprocating lead screw (20) drives the second dust suction plate (16) to reciprocate once, move a certain distance following the cut foam, and continuously suck dust at the position of the cut. S5: Subsequently, the conveyor belt (2) continues to move and convey the foam. When the first rotating shaft (4) rotates, it drives the second rotating shaft (29) to rotate through the pulley group (30). When the second rotating shaft (29) rotates, it drives the second reciprocating lead screw (27) to rotate through the bevel gear group (28). The rotation of the second reciprocating lead screw (27) drives the connecting plate (26) to move reciprocally. The movement of the connecting plate (26) drives the movement of the cleaning plate (23). The movement of the cleaning plate (23) drives the movement of the mounting plate (24) and the brush bristles (25), so that the bottom end of the brush bristles (25) contacts the surface of the bottom plate (10) for cleaning it. S6: When the cleaning plate (23) moves towards one side of the bottom plate (10), the movement of the cleaning plate (23) drives the movement of the slider (32). When the slider (32) moves to one side of the guiding block (33), the guiding block (33) guides the slider (32) to slide towards one side of the cleaning plate (23). The movement of the slider (32) drives the movement of the mounting plate (24), so that the mounting plate (24) reciprocally slides inside the cleaning plate (23) to clean the surface of the bottom plate (10). S7: Finally, continuous cutting operation is carried out through the intermittent alternating operation of the cutting knife (9) and the conveyor belt (2).

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