Air inlet type sofa fabric sanding, finishing and filtering device

Abstract

The invention discloses an air inlet type sofa fabric sanding, finishing and filtering device, which comprises an L-shaped air inlet pipe, an air outlet pipe, an air outlet pipe, an air inlet pipe, an air outlet pipe, an air outlet pipe and a filter screen, wherein the air inlet pipe is provided with an air inlet at the upper end and an air outlet at the transverse end; the sanding part is arranged at the bent position of the air inlet pipe and communicated with the interior of the air inlet pipe, a fabric body is conveyed in the air inlet pipe, and the sanding part and the outer side of the fabric body are extruded; the filtering part is arranged at the transverse position of the air inlet pipe, a filter screen is arranged on the filtering part in a transmission mode, and the air outlet of the air inlet pipe is blocked by the filter screen. Fluff can be adhered to the inclined side of the filter screen, the filter screen performs transmission rotation, so that the fluff on the filter screen moves outwards, extrudes the adhesion plate and is adhered to the adhesion plate, in the sanding process, the fluff is filtered and collected, and meanwhile, the air blowing effect at the air inlet has stronger pushing force compared with the dust collection effect, so that the dust removal effect is improved, and the dust removal efficiency is improved. And the fallen fluff is enabled to move towards one direction.

Description

Technical Field

[0001] The invention relates to the technical field of fluff filtering, in particular to an air-intake type sofa fabric sanding finishing filtering device. Background Art

[0002] The sanding treatment of sofa fabric can form a layer of short and dense fluff on the surface of the sofa fabric, which can significantly improve the feel of the fabric and make it softer and more comfortable. The fluff layer can increase the warmth retention of the fabric, making the sofa warmer when used in winter. The surface of the fabric after sanding treatment has a unique plush texture, which can enhance the overall aesthetics of the sofa, making it more fashionable and high-end.

[0003] During the sanding process, a special sanding machine is used for sanding. The sanding machine is usually equipped with sandpaper rollers, which rub the surface of the fabric at high speed to produce a short and dense layer of fluff.

[0004] During the sanding process, efficient vacuuming equipment is often installed to simultaneously suck away the fluff dust generated during the sanding process. At the same time, the vacuuming equipment should be equipped with an efficient filtration system to ensure that the dust content in the exhausted air meets environmental protection requirements and reduce the flying and diffusion of dust. However, during the operation of the sanding machine, the fluff generated still moves outward in some parts, which pollutes the environment. It is not possible to collect and filter all the fluff. The suction force generated by the vacuuming equipment is limited and cannot absorb all the diffused fluff. In addition, as the amount of fluff gradually increases, the fluff will accumulate, affecting the operation of the vacuuming equipment. Summary of the invention

[0005] The object of the present invention is to provide an air-intake type sofa fabric sanding finishing filtering device to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an air intake type sofa fabric sanding finishing filtering device, comprising: The air inlet pipe is in an "L" shape, with an air inlet at the upper end and an air outlet at the lateral end; The roughened part is arranged at the bending position of the air inlet pipe and is communicated with the inside of the air inlet pipe. The fabric body is transported in the air inlet pipe, and the roughened part is pressed against the outside of the fabric body. The filter part is arranged at a transverse position of the air inlet pipe, and a filter screen is provided on the filter part, and the filter screen blocks the air outlet of the air inlet pipe.

[0007] Furthermore, a rotatable support shaft group 1 is embedded on the longitudinal outer wall of the air inlet pipe, and a rotatable support shaft group 2 is embedded on the transverse lower end surface of the air inlet pipe, and the support shaft group 1 and the support shaft group 2 are used to clamp the fabric body; The support shaft group 1 and the support shaft group 2 are respectively two columnar bodies for squeezing the fabric body.

[0008] Furthermore, the roughening part includes two supporting sheets respectively fixed on the front and rear sides of the air inlet pipe, a shaft body is rotatably installed between the two supporting sheets, one side of the shaft body is embedded in the air inlet pipe, the shaft body is used to rub against the fabric body, and a servo motor for driving the shaft body to rotate is provided at the outer end of the shaft body; An inner support shaft is also rotatably mounted inside the bent portion of the air inlet pipe, and the inner support shaft and the shaft body are used to clamp the fabric body.

[0009] Further, the filter unit includes a transmission shaft group 1, a transmission shaft group 2 and a transmission shaft group 3, the transmission shaft group 1 is located at the upper end of the support shaft group 1, the transmission shaft group 1 and the transmission shaft group 2 are both embedded in the upper end surface of the horizontal part of the air inlet pipe, the transmission shaft group 2 is located on the horizontal outer side of the transmission shaft group 1, and the transmission shaft group 3 is located at the lower end of the transmission shaft group 2, and is embedded in the lower end surface of the horizontal position of the air inlet pipe; The transmission shaft group one, transmission shaft group two and transmission shaft group three are all cylindrical bodies in groups of two, which are used to clamp the filter screen so that the filter screen can be transmitted and rotated along the transmission shaft group one, transmission shaft group two and transmission shaft group three.

[0010] Furthermore, a rotating belt 1 is provided between the transmission shaft group 1 and the shaft body, a rotating belt 2 is provided between the transmission shaft group 2 and the transmission shaft group 1, and a rotating belt 2 is also provided between the transmission shaft group 3 and the transmission shaft group 2, which are used to drive the filter to transmit and rotate.

[0011] Furthermore, the filter is located inside the air inlet pipe and is inclined on one side facing the wind, and the filter has deformable elasticity.

[0012] Furthermore, the filter unit also includes an adjustable outer support plate and an adhesive plate; The upper transverse end surface of the air inlet pipe is fixed with two opposite connection points, a support shaft is rotatably installed between the two connection points, and one end of the support shaft passes through a connection point on one side, and one end of the support shaft is threadedly connected with a fastening nut, and the fastening nut is used to adjust the tightness of the support shaft, and the outer support plate is integrally arranged on the outside of the support shaft, and the outer support plate is located on the inner side of the filter and is used to support the filter.

[0013] Furthermore, a bending frame is fixed to the outside of the air inlet pipe, and the adhesion plate is sleeved on the transverse part of the bending frame. The outside of the adhesion plate is rough with protruding stripes, and its outside is squeezed against the filter. Torsion springs for supporting the adhesion plate are provided on both sides of the transverse part of the bending frame.

[0014] Furthermore, a rotating shaft body is provided on the outer side of the outer support plate, the axis of the rotating shaft body is parallel to the outer support plate, the rotating shaft body is rotatably connected to the outer support plate, the rotating shaft body is used to support the filter screen, and when the outer support plate rotates, it can apply pressure to the adhesion plate.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the fluff will adhere to the inclined side of the filter screen, and the filter screen is transmitted and rotated, so that the fluff on the filter screen moves outward, and is squeezed with the adhesion plate and adhered to the adhesion plate. In the process of sanding, the fluff is filtered and collected, and at the same time, the effect of blowing air at the air inlet has a stronger driving force than the effect of dust suction, so that the fallen fluff moves in one direction; The filter is tilted so that a larger area of ​​the filter is located in the air inlet duct, and more holes of the filter are located in the air inlet duct, which reduces the wind blocking effect and achieves faster filtration; Control the adjustment direction of the outer support plate, and the rotating shaft body on the outside of the outer support plate will squeeze the inner side of the filter to expand the elastic filter. The area of ​​the filter holes will be reduced, which can be used for the fluff on different fabric bodies. At the same time, the area where the adhesive plate and the filter fit together will increase, increasing the contact area and making it easier to adhere the fluff to the adhesive plate. The size of the filter holes is inversely proportional to the area where the adhesive plate and the filter fit together. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention; Figure 3 It is a schematic diagram of the main cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the structure of the filter part of the present invention; Figure 5 It is a schematic diagram of the partial structure of the air inlet pipe of the present invention; Figure 6 It is a schematic diagram of the plane structure of the filter part of the present invention; Figure 7 This is a schematic diagram of the structure of the outer support plate of the present invention rotating at a certain angle; Figure 8 It is a schematic diagram of the structure of the outer support plate of the present invention when it rotates to another angle.

[0017] In the figure: 1. air inlet duct; 2. support shaft group 1; 3. support shaft group 2; 4. fabric body; 5. grinding part; 51. support plate; 52. shaft body; 53. rotating belt 1; 54. inner support shaft; 6. filter part; 61. transmission shaft group 1; 62. transmission shaft group 2; 63. transmission shaft group 3; 64. rotating belt 2; 65. support shaft; 66. fastening nut; 67. outer support plate; 68. rotating shaft body; 69. bending frame; 601. adhesive plate; 602. torsion spring; 603. connection point; 7. filter. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-8 The present invention provides a technical solution: an air intake type sofa fabric sanding finishing filtering device, comprising: The air inlet pipe 1 is in an "L" shape, with an air inlet at its upper end and an air outlet at one lateral end; The roughened part 5 is arranged at the bending position of the air inlet pipe 1 and is communicated with the inside of the air inlet pipe 1. The fabric body 4 is transmitted in the air inlet pipe 1, and the roughened part 5 is pressed against the outer side of the fabric body 4. The filter part 6 is arranged at a horizontal position of the air inlet pipe 1, and a filter screen 7 is provided on the filter part 6, and the filter screen 7 blocks the air outlet of the air inlet pipe 1; It should be noted that by adopting the air inlet pipe 1 and grinding the hair inside the air inlet pipe 1, the fallen fluff can be moved with the wind, so that all the fallen fluff can be blown in one direction and collected at the air outlet, which reduces the flying of fluff to a certain extent and is more environmentally friendly.

[0020] like Figure 3 As shown, in order to transfer the fabric body 4 in time, a rotatable support shaft group 1 2 is embedded on the longitudinal outer wall of the air inlet pipe 1, and a rotatable support shaft group 2 3 is embedded on the transverse lower end surface of the air inlet pipe 1. The support shaft group 1 2 and the support shaft group 2 3 are used to clamp the fabric body 4, transfer the fabric body 4, realize the movement of the fabric body 4, and perform sanding on different positions; Support shaft group 1 2 and support shaft group 2 3 are respectively two columnar bodies that squeeze the fabric body 4, thereby clamping the fabric body 4 and enabling transmission. It should be noted that support shaft group 1 2 and support shaft group 2 3 fit closely with the air inlet pipe 1 to reduce the gap as much as possible.

[0021] like Figure 2 As shown, the equipment for sanding needs to be connected to the air inlet pipe 1, and the sanding part 5 includes two supporting sheets 51 respectively fixed on the front and rear sides of the air inlet pipe 1, and a shaft 52 is rotatably installed between the two supporting sheets 51. One side of the shaft 52 is embedded in the air inlet pipe 1, and the shaft 52 is used for friction with the fabric body 4. The outer end of the shaft 52 is provided with a servo motor for driving the shaft 52 to rotate. It should be noted that the shaft 52 and the air inlet pipe 1 are also in a close fit, and the area of ​​the gap is reduced as much as possible to reduce the leakage of the blown gas. In addition, the air inlet pipe 1 is provided with an air inlet and an air outlet, and the incoming wind moves out through the air outlet. Therefore, there is relatively no air pressure inside the air inlet pipe 1, and the gas moves out from the gap as little as possible. An inner support shaft 54 ​​is also rotatably installed inside the bent part of the air inlet pipe 1, and the inner support shaft 54 ​​and the shaft body 52 are used to clamp the fabric body 4 to achieve extrusion between the fabric body 4 and the shaft body 52, wherein the shaft body 52 is an existing device for sanding.

[0022] like Figure 4 As shown, the filter unit 6 includes a transmission shaft group 1 61, a transmission shaft group 2 62 and a transmission shaft group 3 63. The transmission shaft group 1 61 is located at the upper end of the support shaft group 1 2. The transmission shaft group 1 61 and the transmission shaft group 2 62 are both embedded in the upper end surface of the horizontal part of the air inlet pipe 1. The transmission shaft group 2 62 is located at the horizontal outer side of the transmission shaft group 1 61. The transmission shaft group 3 63 is located at the lower end of the transmission shaft group 2 62 and is embedded in the lower end surface of the horizontal position of the air inlet pipe 1. The transmission shaft group 1 61, the transmission shaft group 2 62 and the transmission shaft group 3 63 are all columnar bodies in pairs, and are used to clamp the filter screen 7 so that the filter screen 7 can be transmitted and rotated along the transmission shaft group 1 61, the transmission shaft group 2 62 and the transmission shaft group 3 63. The transmission shaft group 1 61, the transmission shaft group 2 62 and the transmission shaft group 3 63 form three points, and the filter screen 7 is clamped and supported to form a triangle, so that the filter screen 7 has an inclined side, so that the filter screen 7 is located in a relatively large area of ​​the air inlet pipe 1, thereby improving the filtering effect.

[0023] A rotating belt 53 is provided between the transmission shaft group 1 61 and the shaft body 52, a rotating belt 64 is provided between the transmission shaft group 2 62 and the transmission shaft group 1 61, and a rotating belt 64 is also provided between the transmission shaft group 3 63 and the transmission shaft group 2 62, for driving the filter screen 7 to transmit and rotate; It should be noted that the transmission shaft group 1 61 , the transmission shaft group 2 62 and the transmission shaft group 3 63 can all rotate, so that the clamped filter screen 7 is driven to rotate by three points, which is relatively stable, avoiding the local hole area of ​​the filter screen 7 from becoming larger or smaller, and preventing fluff from filtering the filter screen 7 .

[0024] The filter 7 is located inside the air inlet pipe 1 and is inclined on the side facing the wind. The filter 7 has deformable elasticity and can be deformed so that the filter 7 can filter different fluffs. It should also be noted that the filter 7 is cleaned during the rotation so that the filter 7 can maintain the filtering effect to the greatest extent.

[0025] The filter unit 6 also includes an adjustable outer support plate 67 and an adhesive plate 601; Two opposite connection points 603 are fixed on the transverse upper end surface of the air inlet pipe 1, and a support shaft 65 is rotatably installed between the two connection points 603, and one end of the support shaft 65 passes through the connection point 603 on one side, and the support shaft 65 passes through one end and is threadedly connected with a fastening nut 66, and the fastening nut 66 is used to adjust the tightness of the support shaft 65. The outer support plate 67 is integrally arranged on the outer side of the support shaft 65, and the outer support plate 67 is located on the inner side of the filter 7 and is used to support the filter 7.

[0026] A bending frame 69 is fixed to the outside of the air inlet duct 1, and an adhesive plate 601 is sleeved on the transverse part of the bending frame 69. The outside of the adhesive plate 601 is rough with striped protrusions, which can clamp the fluff. The contact area between the adhesive plate 601 and the filter 7 is increased, so that more striped protrusions are in contact with the filter 7, and the outside is squeezed by the filter 7. Torsion springs 602 for supporting the adhesive plate 601 are provided on both sides of the transverse part of the bending frame 69.

[0027] A rotating shaft 68 is provided on the outer side of the outer support plate 67. The axis of the rotating shaft 68 is parallel to the outer support plate 67. The rotating shaft 68 is rotatably connected to the outer support plate 67. The rotating shaft 68 is used to support the filter 7. When the outer support plate 67 rotates, it can apply pressure to the adhesion plate 601.

[0028] like Figure 6 , Figure 7 and Figure 8 As shown, the rotating shaft body 68 and the outer support plate 67 are rotated to different angles, from Figure 6 , Figure 7 and Figure 8 The rotating shaft body 68 and the outer support plate 67 are gradually made vertical, and the filter screen 7 is gradually supported, so that the filter screen 7 maintains the filtering function, and the filter screen 7 is stretched to a certain extent, so that the filter screen 7 collects different degrees of fluff. In addition, under the action of the torsion spring 602, the adhesive plate 601 is relatively attached to the rotating shaft body 68 or the outer support plate 67, so that the contact area between the adhesive plate 601 and the filter screen 7 is gradually increased, and the fluff on the filter screen 7 is collected. The size of the holes in the filter screen 7 is inversely proportional to the contact area between the adhesive plate 601 and the filter screen 7, so that the adhesive plate 601 does not affect the rotation of the filter screen 7.

[0029] It should also be noted that as the filter 7 gradually becomes taut, its filtering holes will become smaller, making it difficult to collect the finer fluff adhering to the filter 7 , thereby increasing the contact area between the filter 7 and the adhesive plate 601 , causing the fluff to be stuck on the adhesive plate 601 .

[0030] The working principle of the present invention is as follows: the air is blown into the air inlet of the air inlet pipe 1 by a blower, and at the same time, the fabric body 4 is moved along the support shaft group 1 2 and the support shaft group 2 3, and the fabric body 4 is clamped between the shaft body 52 and the inner support shaft 54. Under the action of the servo motor, the shaft body 52 is driven to rotate or reciprocate, so as to achieve the effect of sanding the fabric; The generated fluff will adhere to the inclined side of the filter 7, and under the action of the rotating belt 1 53 and the rotating belt 2 64, the transmission shaft group 1 61, the transmission shaft group 2 62 and the transmission shaft group 3 63 are driven to rotate, so that the filter 7 can be transmitted and rotated, so that the fluff on the filter 7 moves outward and is squeezed with the adhesion plate 601, so that the fluff adheres to the adhesion plate 601, and the filter 7 is cleaned. Based on this, the fluff is filtered and collected during the sanding process, and the blowing effect at the air inlet has a stronger driving force than the dust suction effect, so that the fallen fluff moves in one direction; The filter screen 7 is tilted so that a larger area of ​​the filter screen 7 is located in the air inlet pipe 1 and more holes of the filter screen 7 are located in the air inlet pipe 1, thereby reducing the wind blocking effect and achieving faster filtering.

[0031] In addition, when loosening the fastening nut 66, the adjustment direction of the outer support plate 67 can be controlled so that the rotating shaft body 68 on the outside of the outer support plate 67 is squeezed with the inner side of the filter 7, and the elastic filter 7 is expanded, so that the holes of the filter 7 can be relatively lengthened, that is, the area of ​​the holes of the filter 7 is reduced, and smaller fluff can be filtered. For the fluff of different fabric bodies 4, after the direction of the outer support plate 67 is adjusted, the adhesion plate 601 is relatively squeezed with the outer support plate 67 or the rotating shaft body 68 under the action of the torsion spring 602. At the same time, the area of ​​the adhesion plate 601 and the filter 7 is increased, and the contact area is increased, which makes it easier to adhere the fluff to the adhesion plate 601. The size of the holes of the filter 7 is inversely proportional to the area of ​​the adhesion plate 601 and the filter 7.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air-inlet sofa fabric sanding and finishing filtering device, characterized in that: include: The air inlet pipe (1) is in an "L" shape, with an air inlet at its upper end and an air outlet at one lateral end; The roughened portion (5) is arranged at a bent position of the air inlet pipe (1) and is in communication with the interior of the air inlet pipe (1). The fabric body (4) is transported in the air inlet pipe (1), and the roughened portion (5) is pressed against the outer side of the fabric body (4); The filter part (6) is arranged at a transverse position of the air inlet pipe (1), and a filter screen (7) is provided on the filter part (6), and the filter screen (7) blocks the air outlet of the air inlet pipe (1).

2. The air-inlet type sofa fabric sanding finishing filter device according to claim 1 is characterized in that: A rotatable support shaft group 1 (2) is embedded on the longitudinal outer wall of the air inlet pipe (1), and a rotatable support shaft group 2 (3) is embedded on the transverse lower end surface of the air inlet pipe (1), wherein the support shaft group 1 (2) and the support shaft group 2 (3) are used to clamp the fabric body (4); The support shaft group 1 (2) and the support shaft group 2 (3) are respectively two columnar bodies that squeeze the fabric body (4).

3. The air-inlet type sofa fabric sanding and finishing filtering device according to claim 2 is characterized in that: The grinding portion (5) comprises two supporting plates (51) respectively fixed to the front and rear sides of the air inlet pipe (1); a shaft (52) is rotatably mounted between the two supporting plates (51); one side of the shaft (52) is embedded in the air inlet pipe (1); the shaft (52) is used for rubbing against the fabric body (4); and a servo motor for driving the shaft (52) to rotate is provided at the outer end of the shaft (52); An inner support shaft (54) is also rotatably mounted inside the bent portion of the air inlet pipe (1); the inner support shaft (54) and the shaft body (52) are used to clamp the fabric body (4).

4. The air-inlet type sofa fabric sanding and finishing filtering device according to claim 3 is characterized in that: The filter portion (6) comprises a transmission shaft group 1 (61), a transmission shaft group 2 (62) and a transmission shaft group 3 (63); the transmission shaft group 1 (61) is located at the upper end of the support shaft group 1 (2); the transmission shaft group 1 (61) and the transmission shaft group 2 (62) are both embedded in the upper end surface of the horizontal portion of the air inlet pipe (1); the transmission shaft group 2 (62) is located at the horizontal outer side of the transmission shaft group 1 (61); the transmission shaft group 3 (63) is located at the lower end of the transmission shaft group 2 (62) and is embedded in the lower end surface of the air inlet pipe (1) at a horizontal position; The transmission shaft group one (61), the transmission shaft group two (62) and the transmission shaft group three (63) are all columnar bodies arranged in pairs and used to clamp the filter screen (7) so that the filter screen (7) can be transmitted and rotated along the transmission shaft group one (61), the transmission shaft group two (62) and the transmission shaft group three (63).

5. The air-inlet type sofa fabric sanding and finishing filtering device according to claim 4 is characterized in that: A rotating belt 1 (53) is provided for transmission between the transmission shaft group 1 (61) and the shaft body (52), a rotating belt 2 (64) is provided for transmission between the transmission shaft group 2 (62) and the transmission shaft group 1 (61), and a rotating belt 2 (64) is also provided for transmission between the transmission shaft group 3 (63) and the transmission shaft group 2 (62), for driving the filter screen (7) to transmit and rotate.

6. The air-inlet type sofa fabric sanding and finishing filtering device according to claim 4 is characterized in that: The filter screen (7) is located inside the air inlet pipe (1) and is arranged at an angle on the side facing the wind, and the filter screen (7) has deformable elasticity.

7. The air-inlet type sofa fabric sanding and finishing filtering device according to claim 4 is characterized in that: The filter portion (6) further comprises an adjustable outer support plate (67) and an adhesive plate (601); Two opposite connection points (603) are fixed on the transverse upper end surface of the air inlet pipe (1), a support shaft (65) is rotatably mounted between the two connection points (603), and one end of the support shaft (65) passes through the connection point (603) on one side, and a fastening nut (66) is threadedly connected to one end of the support shaft (65), and the fastening nut (66) is used to adjust the tightness of the support shaft (65), and the outer support plate (67) is integrally arranged on the outer side of the support shaft (65), and the outer support plate (67) is located on the inner side of the filter screen (7) and is used to support the filter screen (7).

8. The air-inlet type sofa fabric sanding and filtering device according to claim 7 is characterized in that: A bending frame (69) is fixed to the outside of the air inlet pipe (1); the adhesive plate (601) is sleeved on the transverse portion of the bending frame (69); the outside of the adhesive plate (601) is roughened in the form of protruding stripes, and the outside of the adhesive plate (601) is pressed against the filter screen (7); and torsion springs (602) for supporting the adhesive plate (601) are provided on both sides of the transverse portion of the bending frame (69).

9. The air-inlet type sofa fabric sanding and finishing filtering device according to claim 7 is characterized in that: A rotating shaft body (68) is provided on the outer side of the outer support plate (67); the axis of the rotating shaft body (68) is parallel to the outer support plate (67); the rotating shaft body (68) is rotatably connected to the outer support plate (67); the rotating shaft body (68) is used to support the filter screen (7); and when the outer support plate (67) rotates, pressure can be applied to the adhesive plate (601).

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