A cutting processing device for slow rebound sponge and a method of using the same

Abstract

The application belongs to the technical field of laser cutting, and particularly relates to a cutting processing equipment for slow-rebound sponge and a use method thereof, which comprises a negative pressure adsorption assembly, a local gas recovery assembly, a sponge mounting platform assembly, a synchronous fan assembly, a laser cutting assembly, a plane support assembly and a fan driving assembly. The hollow interlayer and the arrayed floating air pipe are adopted to realize the adsorption and fixation of the sponge layer in a manner of directional airflow without extrusion deformation of the sponge layer. Based on the scheme, the elastic element and the recovery cover are further provided. The floating air pipe on the recovery cover can stop penetrating the hollow interlayer and penetrate the recovery cover through the negative pressure in the recovery cover, so that the technical effect of separately recovering the gas at the laser processing position is realized.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, specifically referring to a cutting and processing equipment for slow-rebound sponge and its usage method. Background Technology

[0002] Slow rebound foam (also known as memory foam) is a polymer material with unique viscoelasticity and is widely used in medical, home furnishing and automotive fields. Due to its special open cell structure and slow rebound characteristics, it faces many challenges in the cutting and processing process: traditional methods such as hot wire cutting are prone to problems such as material compression deformation, edge tearing and insufficient precision.

[0003] To address the aforementioned issues, non-contact laser cutting is a relatively superior solution. However, applying laser cutting to the processing of flexible materials like memory foam still presents some challenges: A: The problem with fixing the workpiece is that, unlike rigid workpieces, sponges can be squeezed and deformed during installation and fixing, which makes it difficult to guarantee cutting accuracy. B: Laser cutting is essentially done through high temperatures. When many sponges are burned, harmful fumes are produced. If these harmful fumes and particulate matter are not cleaned up, they can easily contaminate the cut surface and cause the material to stick together. They can also easily enter the user's respiratory tract, endangering human health. C: To reduce the generation of flue gas, the conventional approach is to use protective gas to isolate the area and reduce the degree of oxidation at the processing location. However, the protective gas is consumed quickly and is costly.

[0004] Simple filtration devices cannot completely filter harmful flue gas, which needs to be collected and centrally processed. Therefore, the traditional negative pressure technology that simultaneously fixes and collects flue gas results in an excessive amount of flue gas that needs to be collected and processed, significantly increasing the difficulty and cost of operation. Summary of the Invention

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a cutting and processing device for slow-rebound sponge and its usage method. This solution utilizes a hollow interlayer and an array of floating air ducts to achieve adsorption and fixation of the sponge layer without causing compression or deformation through directional airflow. Based on this solution, this invention further proposes an elastic element and a recovery hood. The negative pressure within the recovery hood causes the floating air ducts on the recovery hood to stop communicating with the hollow interlayer and instead communicate with the recovery hood itself, thereby achieving the technical effect of separately recovering the gas from the laser processing area.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a cutting and processing equipment for slow rebound sponge, including a negative pressure adsorption component, a local gas recovery component, a sponge installation platform component, a synchronous fan component, a laser cutting component, a planar support component, and a fan drive component. The local gas recovery component and the sponge installation platform component are respectively disposed on the upper and lower sides of the negative pressure adsorption component. The sponge installation platform component is disposed on the planar support component. The synchronous fan component is disposed on the fan drive component. The laser cutting component is disposed on the fan drive component. Furthermore, the negative pressure adsorption component includes a hollow interlayer and a floating duct. The hollow interlayer is provided with an array of circular through holes, and the floating duct is slidably disposed in the circular through holes. The bottom of the side wall of the floating duct is provided with air windows evenly distributed in a ring.

[0007] Because the air pressure in the hollow sandwich layer is relatively low, the air above the upper support plate will continuously pass through the floating air duct into the hollow sandwich layer. Through continuous directional airflow, the sponge layer can be adsorbed and installed without squeezing and fixing it, thus avoiding displacement during subsequent processing and movement.

[0008] Furthermore, the local gas recovery assembly includes a lower support plate and a recovery hood. The lower support plate is located below the hollow interlayer, and the lower support plate is provided with an array of lower through holes corresponding to the circular through holes. The floating air duct is engaged and slidably disposed in the lower through holes, and the recovery hood is located below the lower support plate.

[0009] A cavity is formed between the bottom of the floating duct and the lower through hole. The floating duct located above the recovery hood is pulled downward by the negative pressure in the recovery hood, so that the gas in the floating duct changes from entering the hollow interlayer to entering the recovery hood, thereby realizing the extraction of flue gas from the processing position.

[0010] Furthermore, the sponge installation platform assembly includes an upper support plate and a sponge layer. The upper support plate is provided with an array of upper through holes corresponding to the circular through holes. The floating air duct is engaged and slidably disposed in the upper through holes, and the sponge layer is located above the upper support plate.

[0011] Preferably, the local gas recovery assembly further includes an elastic element, the top of which is fixed to the inner wall of the upper through hole, the bottom of which is disposed on the floating air duct, and a negative pressure pipe is provided on the side of the hollow interlayer, which is connected to an external fan.

[0012] The gas in the floating duct pushes the floating duct downwards, while the elastic element applies an upward pulling force to the floating duct. Under the combined action of the two, the floating duct located above the sponge layer descends and extends out from the lower through hole, while the floating ducts in other positions are connected to the hollow interlayer through the air window.

[0013] Furthermore, the fan drive assembly includes a cantilever frame, and the synchronous fan assembly includes a recovery fan, an air supply fan, a recovery air duct, and a drive shaft. The recovery fan and the air supply fan are mounted on the cantilever frame, and the drive shaft is rotatably mounted in the cantilever frame. The impellers of the recovery fan and the air supply fan are both sleeved on the drive shaft. The recovery fan is located in the recovery air duct, and one end of the recovery air duct is connected to the recovery hood.

[0014] When the drive shaft rotates, it can simultaneously drive the recovery fan and the air supply fan, simplifying the structure.

[0015] By recovering gases at the processing location, not only can harmful fumes generated during processing be extracted, preventing the continuous presence of fumes from harming the materials themselves and the human body, but protective gases can also be recovered through subsequent separation and purification technologies, reducing costs during the processing.

[0016] Furthermore, the laser cutting assembly includes a laser, an air supply pipe, and a cylindrical nozzle. The laser is located at the end of the cantilever frame, the air supply fan is located in the air supply pipe, the cylindrical nozzle is located at one end of the air supply pipe, the cylindrical nozzle is sleeved on the outside of the laser, and the interior of the cylindrical nozzle is uniformly provided with a scattering grid in a ring.

[0017] The cylindrical nozzle can uniformly spray protective gas at the laser processing location, thereby forming a protective layer in the cutting area and reducing material oxidation.

[0018] Furthermore, the planar support assembly includes a frame bracket, legs, and casters. The frame bracket is located outside the lower support plate, the legs are symmetrically located below the frame bracket, and the casters are located below the legs.

[0019] The planar support component can be a caster wheel or a structure combining a guide rail and a turntable, as long as it can move within a plane.

[0020] Preferably, the wind turbine drive assembly further includes a bearing, which is fitted in a cantilever frame, and the drive shaft is disposed in the bearing.

[0021] As a further preferred embodiment of the present invention, the wind turbine drive assembly further includes a drive motor, a drive gear, and a driven gear. The drive motor is mounted on a cantilever frame, the drive gear is mounted on the output shaft of the drive motor, and the driven gear is mounted on the drive shaft. The drive gear and the driven gear mesh and transmit power to each other.

[0022] This invention also proposes a method for using a cutting and processing device for slow-rebound sponge, specifically including the following steps: Step 1: Place the sponge layer on the upper support plate, and then start the fan connected to the negative pressure pipe. When the internal air pressure of the hollow interlayer is lower than the external air pressure, the air above the sponge layer will enter the hollow interlayer through the floating air duct. The continuous, downward airflow can complete the adsorption and installation of the sponge layer, avoiding displacement during subsequent processing and movement. Step 2: Start the laser and drive motor. During the laser cutting of the sponge layer, control the movement of the frame bracket in the plane to control the cutting path. Step 3: The drive motor drives the drive shaft to rotate through the drive gear and driven gear, and at the same time drives the recovery fan and the air supply fan to work. When the air supply fan is working, it can transport the protective gas stored in the gas tank to the cylindrical nozzle through the air supply pipeline, and then spray it to the processing position through the scattering grid to protect the cutting area. Step 4: When the recovery fan is working, it can create a negative pressure state in the recovery hood where the air pressure is lower than that of the hollow sandwich layer. Since the floating air duct and the lower through hole form a piston chamber structure, the floating air duct located above the recovery hood will descend under the pressure until the air window extends out from the lower through hole. At this time, the floating air duct is not connected to the hollow sandwich layer, and the gas in this area enters the recovery hood and is recovered through the recovery air duct. Step 5: The recovered flue gas is separated in subsequent processes, and the protective gas is purified and reused.

[0023] The beneficial effects achieved by the present invention using the above structure are as follows: (1) Because the air pressure in the hollow sandwich is relatively small, the air above the upper support plate will continuously pass through the floating air duct into the hollow sandwich. Through continuous directional airflow, the sponge layer can be adsorbed and installed without squeezing and fixing the sponge layer, thus avoiding displacement during subsequent processing and movement.

[0024] (2) A cavity will be formed between the bottom of the floating duct and the lower through hole. The floating duct located above the recovery hood will be pulled downward by the negative pressure in the recovery hood, so that the gas in the floating duct will change from entering the hollow interlayer to entering the recovery hood, thereby realizing the extraction of flue gas from the processing position.

[0025] (3) The gas in the floating duct pushes the floating duct downward, while the elastic element applies an upward pulling force to the floating duct. Under the combined action of the two, the floating duct above the sponge layer descends and extends out of the lower through hole, while the floating ducts in other positions are connected to the hollow interlayer through the air window.

[0026] (4) When the drive shaft rotates, it can simultaneously drive the recovery fan and the air supply fan, which simplifies the structure.

[0027] (5) The protective gas can be uniformly sprayed at the laser processing position through the cylindrical nozzle, thereby forming a protection in the cutting area and reducing the oxidation of the material.

[0028] (6) By recovering the gas at the processing location, not only can the harmful fumes generated during processing be extracted, avoiding the continuous fumes from harming the materials themselves and the human body, but also the protective gas can be recovered through subsequent separation and purification technology, reducing the cost expenditure during the processing. Attached Figure Description

[0029] Figure 1 This is a perspective view of a cutting and processing device for slow-rebound sponge proposed in this invention; Figure 2 This is a front view of a cutting and processing device for slow-rebound sponge proposed in this invention; Figure 3 This is a top view of a cutting and processing device for slow-rebound sponge proposed in this invention; Figure 4 for Figure 2 A cross-sectional view along section line AA; Figure 5 This is a schematic diagram of a half-section of a cutting and processing device for slow-rebound sponge proposed in this invention. Figure 6 This is an exploded structural diagram of a cutting and processing device for slow-rebound sponge proposed in this invention; Figure 7 for Figure 4 A magnified view of a section at point I; Figure 8 for Figure 5 Enlarged view of a section at point II; Figure 9 for Figure 4 A magnified view of a section at point III.

[0030] Among them, 1. Negative pressure adsorption component, 2. Local gas recovery component, 3. Sponge installation platform component, 4. Synchronous fan component, 5. Laser cutting component, 6. Planar support component, 7. Fan drive component, 11. Hollow sandwich layer, 12. Floating air duct, 21. Elastic element, 22. Lower support plate, 23. Recovery hood, 31. Upper support plate, 32. Sponge layer, 41. Recovery fan, 42. Air supply fan, 43. Recovery air duct, 44. Drive shaft, 51. Laser, 52. Air supply pipe, 53. Cylindrical nozzle, 61. Frame bracket, 62. Support leg, 63. Caster wheel, 71. Cantilever frame, 72. Bearing, 73. Drive motor, 74. Drive gear, 75. Driven gear, 111. Circular through hole, 112. Negative pressure pipe, 121. Air vent, 221. Lower through hole, 311. Upper through hole, 531. Scattering grid.

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] like Figures 1-9 As shown, the present invention proposes a cutting and processing equipment for slow rebound sponge, including a negative pressure adsorption component 1, a local gas recovery component 2, a sponge mounting platform component 3, a synchronous fan component 4, a laser cutting component 5, a planar support component 6, and a fan drive component 7. The local gas recovery component 2 and the sponge mounting platform component 3 are respectively disposed on the upper and lower sides of the negative pressure adsorption component 1. The sponge mounting platform component 3 is disposed on the planar support component 6. The synchronous fan component 4 is disposed on the fan drive component 7. The laser cutting component 5 is disposed on the fan drive component 7. The negative pressure adsorption component 1 includes a hollow interlayer 11 and a floating air duct 12. The hollow interlayer 11 is provided with an array of circular through holes 111. The floating air duct 12 is slidably disposed in the circular through holes 111. The bottom of the side wall of the floating air duct 12 is provided with air windows 121 evenly distributed in a ring.

[0035] Because the air pressure in the hollow interlayer 11 is relatively low, the air above the upper support plate 31 will continuously pass through the floating air duct 12 into the hollow interlayer 11. Through continuous directional airflow, the sponge layer 32 can be adsorbed and installed without squeezing and fixing it, thus avoiding displacement during subsequent processing and movement.

[0036] The local gas recovery assembly 2 includes a lower support plate 22 and a recovery hood 23. The lower support plate 22 is located below the hollow interlayer 11. The lower support plate 22 is provided with an array of lower through holes 221 corresponding to the circular through holes 111. The floating air duct 12 is engaged and slidably disposed in the lower through holes 221. The recovery hood 23 is located below the lower support plate 22.

[0037] A cavity is formed between the bottom of the floating duct 12 and the lower through hole 221. The floating duct 12 located above the recovery hood 23 is pulled downward by the negative pressure in the recovery hood 23, so that the gas in the floating duct 12 changes from entering the hollow interlayer 11 to entering the recovery hood 23, thereby realizing the extraction of flue gas from the processing position.

[0038] The sponge installation platform component 3 includes an upper support plate 31 and a sponge layer 32. The upper support plate 31 is provided with an array of upper through holes 311 corresponding to the circular through holes 111. The floating air duct 12 is engaged and slidably disposed in the upper through holes 311. The sponge layer 32 is located above the upper support plate 31.

[0039] The local gas recovery assembly 2 also includes an elastic element 21. The top of the elastic element 21 is fixed to the inner wall of the upper through hole 311, and the bottom of the elastic element 21 is provided on the floating air duct 12. The side of the hollow interlayer 11 is provided with a negative pressure pipe 112, which is connected to an external fan.

[0040] The gas in the floating duct 12 pushes the floating duct 12 downward, while the elastic element 21 applies an upward pulling force to the floating duct 12. Under the combined action of the two, the floating duct 12 located above the sponge layer 32 descends and extends out from the lower through hole 221, while the floating ducts 12 in other positions are connected to the hollow interlayer 11 through the air window 121.

[0041] The fan drive assembly 7 includes a cantilever frame 71, and the synchronous fan assembly 4 includes a recovery fan 41, an air supply fan 42, a recovery air duct 43, and a drive shaft 44. The recovery fan 41 and the air supply fan 42 are mounted on the cantilever frame 71, and the drive shaft 44 is rotatably mounted in the cantilever frame 71. The impellers of the recovery fan 41 and the air supply fan 42 are both mounted on the drive shaft 44. The recovery fan 41 is located in the recovery air duct 43, and one end of the recovery air duct 43 is connected to the recovery hood 23.

[0042] When the drive shaft 44 rotates, it can simultaneously drive the recovery fan 41 and the air supply fan 42, which simplifies the structure.

[0043] By recovering gases at the processing location, not only can harmful fumes generated during processing be extracted, preventing the continuous presence of fumes from harming the materials themselves and the human body, but protective gases can also be recovered through subsequent separation and purification technologies, reducing costs during the processing.

[0044] The laser cutting assembly 5 includes a laser 51, an air supply pipe 52, and a cylindrical nozzle 53. The laser 51 is located at the end of the cantilever frame 71, the air supply fan 42 is located in the air supply pipe 52, and the cylindrical nozzle 53 is located at one end of the air supply pipe 52. The cylindrical nozzle 53 is sleeved on the outside of the laser 51, and the inside of the cylindrical nozzle 53 is evenly distributed with a scattering grid 531 in a ring.

[0045] The cylindrical nozzle 53 can uniformly spray protective gas at the laser processing location, thereby forming a protective layer in the cutting area and reducing material oxidation.

[0046] The planar support assembly 6 includes a frame bracket 61, legs 62 and casters 63. The frame bracket 61 is located outside the lower support plate 22, the legs 62 are symmetrically located below the frame bracket 61, and the casters 63 are located below the legs 62.

[0047] The planar support component 6 can be a caster wheel 63 or a structure combining a guide rail and a turntable, as long as it can move within a plane.

[0048] The fan drive assembly 7 also includes a bearing 72, which is fitted into the cantilever frame 71, and the drive shaft 44 is located in the bearing 72.

[0049] The fan drive assembly 7 also includes a drive motor 73, a drive gear 74, and a driven gear 75. The drive motor 73 is mounted on the cantilever frame 71, the drive gear 74 is mounted on the output shaft of the drive motor 73, and the driven gear 75 is mounted on the drive shaft 44. The drive gear 74 and the driven gear 75 mesh and transmit power.

[0050] In practical use, the user first needs to place the sponge layer 32 on the upper support plate 31, and then start the fan connected to the negative pressure pipe 112. When the internal air pressure of the hollow interlayer 11 is lower than the external air pressure, the air above the sponge layer 32 will enter the hollow interlayer 11 through the floating air duct 12. The gas in the floating air duct 12 pushes the floating air duct 12 downward, while the elastic element 21 applies an upward pulling force to the floating air duct 12. Under the combined action of the two, the bottom of the floating air duct 12 is roughly flush with the bottom of the hollow interlayer 11 in a free state. At this time, the floating air duct 12 and the hollow interlayer 11 are connected through the air window 121. A continuous, downward-directed airflow allows the sponge layer 32 to be adsorbed and installed without being squeezed or compressed, thus preventing displacement during subsequent processing and movement.

[0051] Then, the laser 51 and drive motor 73 are started. During the process of the laser 51 cutting the sponge layer 32, the movement of the control frame bracket 61 in the plane can be used to control the cutting path. The drive motor 73 drives the drive shaft 44 to rotate through the drive gear 74 and the driven gear 75, and at the same time drives the recovery fan 41 and the air supply fan 42 to work. When the air supply fan 42 is working, it can deliver the protective gas stored in the gas tank to the cylindrical nozzle 53 through the air supply pipe 52, and then spray it evenly to the processing position through the scattering grid 531 to protect the cutting area and reduce the oxidation of the material. When the recovery fan 41 is working, it can create a negative pressure state in the recovery hood 23 where the air pressure is lower than that in the hollow interlayer 11. Since the floating air duct 12 and the lower through hole 221 form a piston chamber structure, the floating air duct 12 located above the recovery hood 23 will descend under pressure until the air window 121 extends out of the lower through hole 221. At this time, the floating air duct 12 is not connected to the hollow interlayer 11. The gas in this area (including protective gas, fumes generated during processing, etc.) enters the recovery hood 23 and is recovered through the recovery air duct 43.

[0052] The recovered flue gas is separated in subsequent processes, and the protective gas is purified and reused. Because the recovered flue gas has a high content of protective gas, the purification cost is relatively low. The impurities are mainly dust and small particles.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cutting and processing device for slow-rebound sponge, characterized in that: It includes a negative pressure adsorption component (1), a local gas recovery component (2), a sponge installation platform component (3), a synchronous fan component (4), a laser cutting component (5), a planar support component (6), and a fan drive component (7). The local gas recovery component (2) and the sponge installation platform component (3) are respectively located on the upper and lower sides of the negative pressure adsorption component (1). The sponge installation platform component (3) is located on the planar support component (6). The synchronous fan component (4) is located on the fan drive component (7). The laser cutting component (5) is located on the fan drive component (7). The negative pressure adsorption component (1) includes a hollow interlayer (11) and a floating air duct (12). The hollow interlayer (11) is provided with an array of circular through holes (111). The floating air duct (12) is slidably disposed in the circular through holes (111). The bottom of the side wall of the floating air duct (12) is provided with air windows (121) evenly distributed in a ring. The local gas recovery assembly (2) includes a lower support plate (22) and a recovery hood (23). The lower support plate (22) is located below the hollow interlayer (11). The lower support plate (22) is provided with an array of lower through holes (221) corresponding to the circular through holes (111). The floating air duct (12) is engaged and slidably disposed in the lower through holes (221). The recovery hood (23) is located below the lower support plate (22). The sponge installation platform assembly (3) includes an upper support plate (31) and a sponge layer (32). The upper support plate (31) is provided with an array of upper through holes (311) corresponding to the circular through holes (111). The floating air duct (12) is engaged and slidably disposed in the upper through holes (311). The sponge layer (32) is located above the upper support plate (31). The local gas recovery assembly (2) also includes an elastic element (21), the top of which is fixed to the inner wall of the upper through hole (311), the bottom of which is located on the floating air duct (12), and the side of the hollow interlayer (11) is provided with a negative pressure pipe (112), which is connected to an external fan. The fan drive assembly (7) includes a cantilever frame (71), and the synchronous fan assembly (4) includes a recovery fan (41), an air supply fan (42), a recovery air duct (43), and a drive shaft (44). The recovery fan (41) and the air supply fan (42) are mounted on the cantilever frame (71), and the drive shaft (44) is rotatably mounted in the cantilever frame (71). The impellers of the recovery fan (41) and the air supply fan (42) are both mounted on the drive shaft (44). The recovery fan (41) is located in the recovery air duct (43), and one end of the recovery air duct (43) is connected to the recovery hood (23).

2. The cutting and processing equipment for slow-rebound sponge according to claim 1, characterized in that: The laser cutting assembly (5) includes a laser (51), an air supply pipe (52), and a cylindrical nozzle (53). The laser (51) is located at the end of the cantilever frame (71), the air supply fan (42) is located in the air supply pipe (52), the cylindrical nozzle (53) is located at one end of the air supply pipe (52), the cylindrical nozzle (53) is sleeved on the outside of the laser (51), and the inside of the cylindrical nozzle (53) is evenly distributed with a scattering grid (531).

3. The cutting and processing equipment for slow-rebound sponge according to claim 2, characterized in that: The planar support assembly (6) includes a frame bracket (61), legs (62) and casters (63). The frame bracket (61) is located outside the lower support plate (22), the legs (62) are symmetrically located below the frame bracket (61), and the casters (63) are located below the legs (62).

4. The cutting and processing equipment for slow-rebound sponge according to claim 3, characterized in that: The wind turbine drive assembly (7) also includes a bearing (72), which is fitted in the cantilever frame (71), and the drive shaft (44) is located in the bearing (72).

5. The cutting and processing equipment for slow-rebound sponge according to claim 4, characterized in that: The wind turbine drive assembly (7) also includes a drive motor (73), a drive gear (74), and a driven gear (75). The drive motor (73) is mounted on a cantilever frame (71), the drive gear (74) is mounted on the output shaft of the drive motor (73), and the driven gear (75) is mounted on the drive shaft (44). The drive gear (74) and the driven gear (75) mesh and transmit power.

6. The method of using the slow-rebound sponge cutting and processing equipment according to claim 5, characterized in that, Includes the following steps: Step 1: Place the sponge layer (32) on the upper support plate (31), and then start the fan connected to the negative pressure pipe (112). When the internal air pressure of the hollow interlayer (11) is less than the external air pressure, the air above the sponge layer (32) will enter the hollow interlayer (11) through the floating air pipe (12). The continuous, downward air can complete the adsorption installation of the sponge layer (32) and avoid displacement during subsequent processing and movement. Step 2: Start the laser (51) and drive motor (73). During the process of the laser (51) cutting the sponge layer (32), control the movement of the frame bracket (61) in the plane to control the cutting path. Step 3: The drive motor (73) drives the drive shaft (44) to rotate through the drive gear (74) and the driven gear (75), and at the same time drives the recovery fan (41) and the air supply fan (42) to work. When the air supply fan (42) is working, it can transport the protective gas stored in the gas tank to the cylindrical nozzle (53) through the air supply pipe (52), and then spray it to the processing position through the scattering grid (531) to protect the cutting area. Step 4: When the recovery fan (41) is working, it can form a negative pressure state in the recovery hood (23) where the air pressure is lower than that of the hollow interlayer (11). Since the floating air duct (12) and the lower through hole (221) form a piston chamber structure, the floating air duct (12) located above the recovery hood (23) will descend under pressure until the air window (121) extends out from the lower through hole (221). At this time, the floating air duct (12) is not connected to the hollow interlayer (11), and the gas in this area enters the recovery hood (23) and is recovered through the recovery air passage (43). Step 5: The recovered flue gas is separated in subsequent processes, and the protective gas is purified and reused.

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