Dust removal device for plate cutting

Abstract

The dust removal device comprises an air pump, an air pipe arranged on the air pump and a dust removal cover arranged on one side of the air pipe, a dust collection box with an opening in the top end is arranged between the air pipe and the dust removal cover, a box cover with an opening in the bottom end is arranged above the dust collection box, and a first partition plate is vertically arranged in the box cover; a fixing plate is horizontally arranged between the box cover and the dust collecting box, a plurality of sleeve holes are formed in the fixing plate on the two sides of the first partition plate respectively, fixing rings are sleeved with the sleeve holes, cloth bags with the tops open are arranged in the fixing rings, a three-way pipe is arranged between the box cover and the dust removing cover, and through holes are formed in the tops of the side walls of the box cover on the two sides of the first partition plate respectively. A through groove is formed in the box cover below the through hole, two limiting strips of an L-shaped structure are arranged on the side, close to the first partition plate, of the through groove, and a sealing plate is arranged between the two limiting strips. The utility model provides a dust removal device for plate cutting, which simplifies the replacement operation of a cloth bag and ensures the smooth and continuous plate cutting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate cutting dust removal technical field, concretely relates to a dust removal device of plate cutting. BACKGROUND

[0002] Furniture products as an indispensable part of people's daily life, not only provide the function of sitting, lying, supporting or storing articles, but also greatly improve the comfort of people's life. At the same time, furniture products also carry people's aesthetic pursuit and emotional attachment to the living environment, so that furniture becomes an important part of people's life. Modern furniture manufacturing industry mainly uses density board, shaving board, plywood, solid wood composite board and other environmentally friendly boards as base materials, and realizes standardized production through modular design, which not only improves production efficiency, but also ensures the quality consistency of products. As the basic material of furniture production, the plate is finally converted into a home product that meets people's living needs after design, processing and assembly processes. In this series of processes, plate cutting is a crucial link. According to the design requirements, the cutting machine is used to cut the plate into the required shape, and then through the processes such as drilling and edge sealing, the final assembly becomes a home product that meets the principles of ergonomics, so as to provide people with a beautiful and comfortable living environment.

[0003] In the process of cutting the plate with the cutting machine, due to the characteristics of the plate, a large amount of waste will be generated during the plate cutting process, which will spread in the working environment, resulting in high dust concentration in the working environment and making the air quality of the working environment very poor. Long-term work in such an environment full of waste will not only negatively affect the accuracy of cutting operation, but also may seriously threaten the respiratory system and other physical health of the operator, thereby affecting the efficiency and quality of cutting work. Therefore, it is necessary to use an effective dust removal device to remove waste during plate cutting operation, which can significantly reduce the influence of waste on plate cutting accuracy and also help to improve the working environment and protect the health of the operator. Dust removal technology mainly includes mechanical filtration, wet dust removal and high-voltage electrostatic dust removal methods. However, in a high humidity environment, wet dust removal is easy to cause bag sticking, and high-voltage electrostatic dust removal is not suitable for widespread use due to high energy consumption and operation cost. In contrast, mechanical dust removal technology is widely adopted due to its simple operation, safety and reliability.

[0004] In the mechanical dust removal technology, the cloth bag dust removal technology is a typical representative. By using the air pump, the negative pressure condition is created for the plate cutting operation environment, and the dust in the operation environment can be effectively sucked into the cloth bag. The cloth bag filters the airflow containing the waste chips, so that the waste chips are intercepted on the surface of the cloth bag, so as to achieve the dust removal purpose. However, due to the large amount of waste chips generated in the plate cutting process, the cloth bag will be quickly filled with the waste chips, which will affect the filtering effect of the cloth bag and reduce the dust removal efficiency. Therefore, the cloth bag needs to be frequently replaced to maintain the dust removal effect. In the process of replacing the cloth bag, in order to avoid the waste chips being sucked into the air pump, the air pump must be closed first, and then the air pump is started again after the cloth bag is replaced. The frequent replacement operation not only increases the difficulty of maintenance, but also is difficult to ensure the continuity of the plate cutting operation, thereby causing adverse effects on the subsequent processes such as furniture production. Therefore, there is room for improvement in the plate cutting process in order to realize continuous dust removal operation, simplify the replacement process of the cloth bag, ensure that the plate cutting process can be smoothly and continuously carried out, thereby improving the production efficiency and product quality. SUMMARY

[0005] In view of the defects in the prior art, the dust removal device for plate cutting provided by the utility model simplifies the replacement operation of the cloth bag and ensures that the plate cutting process is smoothly and continuously carried out.

[0006] The utility model adopts the technical scheme that a dust removal device for plate cutting, including air pump, air pipe which is provided on air pump and dust cover which is provided on one side of air pipe, top opening dust collecting box is provided between air pipe and dust cover, air pump is connected with bottom of dust collecting box through air pipe, bottom opening box cover is provided on top of dust collecting box, vertical partition one is provided in box cover, fixed plate is horizontally provided between box cover and dust collecting box, a plurality of sleeve holes are respectively formed in fixed plate on both sides of partition one, fixed ring is sleeved in sleeve hole, top opening cloth bag is provided in fixed ring, three-way pipe is provided between box cover and dust cover, through hole is respectively formed in sidewall top of box cover on both sides of partition one, dust cover is connected with through hole through three-way pipe, through groove is formed in box cover below through hole, two L-shaped limit strips are provided on one side of partition one close to through groove, sealing plate is provided between two limit strips, and sealing plate is assembled on inner wall of box cover through limit strip.

[0007] Preferably, the lower part of the first partition plate is vertically provided with a second partition plate, the top end of the second partition plate and the bottom end of the first partition plate are respectively in contact with the fixed plate, the second partition plate, the first partition plate and the fixed plate form a plate-shaped structure with a cross section, the two sides of the first partition plate are installed on the inner wall of the box cover, the two sides of the second partition plate are installed on the top inner wall of the dust collecting box, the lower part of the second partition plate is horizontally provided with a hinge shaft, the two sides of the hinge shaft are respectively out of the dust collecting box, the hinge shaft is rotatably installed on the dust collecting box, two baffles are arranged on the hinge shaft in the dust collecting box, one end of each of the two baffles is installed on the hinge shaft, the included angle between the two baffles is 90-100°, the lower part of the baffle is horizontally provided with a baffle ring, the baffle ring is installed on the inner wall of the dust collecting box, and the bottom surface of the baffle is in contact with the baffle ring.

[0008] Preferably, one end of the hinge shaft is provided with a hinge arm, one side of the hinge arm is installed on the hinge shaft, the other side of the hinge shaft is provided with a telescopic cylinder, one end of the telescopic cylinder is hingedly connected to the hinge arm, and the other end of the telescopic cylinder is hingedly connected to the outer wall of the dust collecting box.

[0009] Preferably, the limiting strip extends along the direction from the top end of the side wall of the box cover to the bottom end of the side wall of the box cover, one end of the limiting strip is installed on the inner wall of the box cover, the side of the fixed plate is located in the inner cavity surrounded by the limiting strip and the side wall of the box cover, the side of the fixed plate away from the first partition plate is provided with a fixed block, the fixed block is installed on the bottom of the fixed plate, the fixed block is in contact with the bottom of the through groove, a fixed tube is arranged between the through hole and the through groove, the fixed tube is installed on the outer wall of the box cover, a bolt is threadedly sleeved in the fixed tube, a through hole is formed in the box cover, the bolt is sleeved on the through hole, and one side of the bolt is in contact with the fixed plate.

[0010] Preferably, the lower part of the gas pump is provided with a supporting plate, the lower part of the supporting plate is uniformly provided with a plurality of universal wheels, the top ends of the universal wheels are respectively installed on the supporting plate, the dust collecting box is located above one side of the supporting plate, a support is arranged between the supporting plate and the dust collecting box, the two sides of the support are respectively connected with the dust collecting box and the supporting plate, a plurality of storage plates are uniformly arranged on the support in the vertical direction, the plurality of storage plates are respectively installed on the support, and a storage groove is formed in the storage plate and extends from the top surface of the storage plate to the bottom of the storage plate.

[0011] Preferably, the top end of the dust collecting box and the bottom end of the box cover are respectively provided with flanges, the inner ring of the flange is mounted on the outer wall of the dust collecting box or the box cover, the flange mounted on the box cover is connected with the flange mounted on the dust collecting box through screws and nuts, the inner wall of the top end of the dust collecting box and the inner wall of the bottom end of the box cover are respectively provided with fixing grooves, the fixing ring is sleeved in the fixing groove, the upper side of the fixing ring and the lower side of the fixing ring are respectively provided with sealing rings made of elastic material, and the sealing rings are extruded in the fixing groove through the fixing ring; the plurality of sleeve holes are uniformly distributed on one side of the fixing plate, the sleeve hole adopts a stepped structure, the fixing ring is movably sleeved on the top of the sleeve hole, the diameter of the outer wall of the fixing ring and the diameter of the top of the sleeve hole are both not less than the diameter of the bottom of the sleeve hole, and the top end of the cloth bag is mounted on the fixing ring.

[0012] The utility model has the advantages that: firstly, the utility model creates a negative pressure environment for the dust cover through the air pump and the air pipe, and the dust cover is placed in the plate cutting area to suck the waste generated by the plate cutting operation, and the fixing plate is arranged between the dust collecting box and the box cover to assemble the fixing ring with the cloth bag, thereby filtering the airflow conveyed to the dust collecting box, and the waste is left in the cloth bag.

[0013] Secondly, the utility model separates the top inner cavity of the dust collecting box into two independent chambers through the second partition plate, and the hinge shaft is arranged on the dust collecting box to drive the two baffles to rotate, thereby using the baffles to block one of the independent chambers on the top of the dust collecting box, to avoid the air in the independent chamber flowing due to the air pump, and to clean the independent chamber, thereby improving the cloth bag replacement efficiency.

[0014] Again, the utility model discloses the fixed block to be set to with the restraint of fixed plate, prevent fixed plate from sliding out from the bottom of limiting strip, and through the fixed block of push -and -pull and move to the fixed plate along the cavity of limiting strip and move conveniently control, through the fixed tube and bolt of setting on the box cover, to extrude fixed plate and fix on limiting strip, to make it convenient for the fixed plate and fix. Moreover, the utility model discloses the universal wheel to be set to with the movement of the utility model for driving, through the support, assemble dust collecting box to support plate, through the setting of the support plate on the support, to create the article space, to make it convenient for the article such as cloth bag of replacement and place. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] Figure 2 It is the assembly cutaway structure diagram of dust cover and box cover and dust collecting box in the utility model.

[0017] Figure 3 It is Figure 2 the enlarged schematic view of A in the middle.

[0018] Figure 4 It is Figure 2 the enlarged schematic view of B in the middle.

[0019] Figure 5 It is the assembly cutaway perspective drawing of box cover and fixed plate in the utility model.

[0020] Figure 6 It is Figure 5 the enlarged schematic view of C in the middle. DETAILED DESCRIPTION

[0021] As Figures 1 to 6As shown, a plate cutting dust removal device, including air pump 1, air pump 1 is provided with air pipe 2 and air pipe 2 side of the dust cover 3, so that the use of air pump 1 for dust cover 3 create negative pressure environment, in order to suck out the waste generated in the process of plate cutting, the air pipe 2 and dust cover 3 between the top opening of the dust collection box 4, air pump 1 through the air pipe 2 and the bottom of the dust collection box 4 is communicated, the top of the dust collection box 4 is provided with the bottom opening of the box cover 5, the box cover 5 is vertically provided with the partition plate 6, the partition plate 6 is separated into two independent chambers, so that the maintenance of one of the chambers of the box cover 5, can be through the other chamber of the box cover 5 for dust removal treatment, in order to maintain the continuity of the dust removal; box cover 5 and dust collection box 4 between the horizontal setting of the fixed plate 7, the fixed plate 7 of both sides of the partition plate 6 is respectively provided with a plurality of sleeve holes 8, the sleeve hole 8 is provided with a fixed ring 9, the fixed ring 9 is provided with the top opening of the cloth bag 10, the cloth bag 10 is provided with filter hole, so that the airflow through the filter hole, and the waste generated in the process of plate cutting can not pass through the filter hole, so that the waste is left in the cloth bag 10, the box cover 5 and dust cover 3 between the tee 11, the sidewall of the box cover 5 of both sides of the partition plate 6 is respectively provided with a through hole 12, the dust cover 3 through the tee 11 and the through hole 12 is communicated, the through hole 12 below the box cover 5 is provided with a through slot 13, the through slot 13 is provided with two L type structure of the limiting strip 14, the two limiting strip 14 between the setting of the sealing plate 15, the sealing plate 15 is assembled on the inner wall of the box cover 5 through the limiting strip 14, the sealing plate 15 is used for sealing the through slot 13 or the through hole 12, the limiting strip 14 is used for limiting the sealing plate 15 can only move up and down along the sidewall of the box cover 5; for this, if the sealing plate 15 is moved upward, the sealing plate 15 will seal the through hole 12, and the inner cavity of the box cover 5 will be communicated with the external environment through the through slot 13, so as to facilitate the replacement of the cloth bag 10, so as to reduce the interference in the process of replacing the cloth bag 10.

[0022] The lower part of the partition plate 6 is vertically provided with a partition plate 16, the top end of the partition plate 16 and the bottom end of the partition plate 6 are in contact with the fixed plate 7 respectively, the partition plate 16, the partition plate 6 and the fixed plate 7 form a plate-shaped structure with cross-section, the two sides of the partition plate 6 are installed on the inner wall of the box cover 5, the top end of the partition plate 6 is installed on the top plate of the box cover 5, the two sides of the partition plate 16 are installed on the top inner wall of the dust collecting box 4, so that the top inner cavity of the dust collecting box 4 is separated into two independent chambers by the partition plate 16; the lower part of the partition plate 16 is horizontally provided with a hinge shaft 17, the top end of the hinge shaft 17 is in contact with the bottom end of the partition plate 16, the two sides of the hinge shaft 17 are respectively out of the dust collecting box 4, the hinge shaft 17 is rotatably installed on the dust collecting box 4, two baffles 18 are arranged on the hinge shaft 17 in the dust collecting box 4, the two baffles 18 are respectively located on the two sides of the partition plate 16, one end of each of the two baffles 18 is installed on the hinge shaft 17, the included angle between the two baffles 18 is 90°-100°, a baffle ring 19 is horizontally arranged below the baffle 18, the baffle ring 19 is installed on the inner wall of the dust collecting box 4, the outer wall diameter of the baffle ring 19 is consistent with the inner cavity diameter of the dust collecting box 4, the bottom surface of the baffle 18 is in contact with the baffle ring 19, so that one of the two independent chambers on the top of the dust collecting box 4 is sealed by the baffle 18 and the baffle ring, so as to clean one of the two independent chambers on the top of the dust collecting box 4, and further, the cross-sectional shape of each of the two baffles 18 is consistent with the cross-sectional shape of the inner cavity of the dust collecting box 4 on one side of the partition plate 16, the end of the baffle 18 close to the baffle ring 19, the bottom end of the partition plate 6 and the top end of the partition plate 16 are respectively provided with a gasket made of elastic material, the gasket is pressed on the fixed plate 7 or the baffle ring 19, so as to seal the gap between the baffle 18 and the baffle ring 19, the partition plate 6 and the fixed plate 7 and the partition plate 16 and the fixed plate 7.

[0023] Specifically, one end of the hinge shaft 17 is provided with a hinge arm 20, one side of the hinge arm 20 is installed on the hinge shaft 17, the other side of the hinge shaft 17 is provided with a telescopic cylinder 21, one end of the telescopic cylinder 21 is hinged to the hinge arm 20, the other end of the telescopic cylinder 21 is hinged to the outer wall of the dust collecting box 4, the telescopic cylinder 21 is controlled to extend and retract, the hinge arm 20 and the hinge shaft 17 are driven to rotate, so as to control the sealing of the inner cavity of the dust collecting box 4 by the baffle 18, and simplify the difficulty of sealing operation.

[0024] Please participate again Figure 5 and 6The limiting strip 14 extends along the direction from the top end of the side wall of the box cover 5 to the bottom end of the side wall of the box cover 5, one end of the limiting strip 14 is installed on the inner wall of the box cover 5, the side of the fixing plate 7 is located in the inner cavity surrounded by the limiting strip 14 and the side wall of the box cover 5, the fixing block 22 is arranged on the side of the fixing plate 7 away from the partition plate 6, the fixing block 22 is installed on the bottom of the fixing plate 7, the fixing block 22 is in contact with the bottom of the through slot 13, so as to constrain the fixing plate 7, prevent the fixing plate 7 from sliding out of the bottom of the limiting strip 14, and move the fixing plate 7 by pushing and pulling the fixing block 22, so as to drive the fixing plate 7 to move along the inner cavity of the limiting strip 14, the through hole 12 and the through slot 13 are provided with the fixing pipe 23, the fixing pipe 23 is installed on the outer wall of the box cover 5, the bolt 24 is screwed on the fixing pipe 23, the box cover 5 is provided with a through hole, the bolt 24 is screwed on the through hole, one side of the bolt 24 is in contact with the fixing plate 7, the fixing plate 7 is pressed and fixed on the limiting strip 14 by screwing the bolt 24, so as to facilitate the fixing of the fixing plate 7.

[0025] Please refer to Figure 1 The air pump 1 is provided below with a supporting plate 25, a plurality of universal wheels 26 are uniformly arranged below the supporting plate 25, the top ends of the universal wheels 26 are respectively installed on the supporting plate 25, the dust collecting box 4 is located above one side of the supporting plate 25, a support 27 is arranged between the supporting plate 25 and the dust collecting box 4, the two sides of the support 27 are respectively connected with the dust collecting box 4 and the supporting plate 25, so as to facilitate the movement of the utility model by pushing and pulling, a plurality of storage plates 28 are uniformly arranged on the support 27 along the vertical direction, the storage plates 28 are respectively installed on the support 27, the storage plates 28 are provided with storage grooves, the storage grooves are arranged from the top surface of the storage plates 28 to the bottom of the storage plates 28, so as to create a storage space, thereby facilitating the placement of the replaced cloth bag 10 and other articles.

[0026] The top end of the dust collecting box 4 and the bottom end of the box cover 5 are respectively provided with flanges 29, the inner ring of the flange 29 is mounted on the outer wall of the dust collecting box 4 or the box cover 5, the flange 29 mounted on the box cover 5 is connected with the flange 29 mounted on the dust collecting box 4 through screws and nuts, so that the box cover 5 is conveniently mounted or dismounted by mounting or dismounting the screws and nuts, the inner wall top end of the dust collecting box 4 and the inner wall bottom end of the box cover 5 are respectively provided with fixing grooves 30, the fixing ring 9 is sleeved in the fixing groove 30, the upper side of the fixing ring 9 and the lower side of the fixing ring 9 are respectively provided with sealing rings 31 made of elastic material, the sealing ring 31 is extruded in the fixing groove 30 through the fixing ring 9, so that the gap between the fixing ring 9 and the dust collecting box 4 or the box cover 5 is sealed; the plurality of sleeve holes 8 are uniformly distributed on one side of the fixing plate 7, the sleeve hole 8 adopts a stepped structure, the fixing ring 9 is movably sleeved on the top of the sleeve hole 8, the outer wall diameter of the fixing ring 9 and the top diameter of the sleeve hole 8 are both not less than the bottom hole diameter of the sleeve hole 8, the top end of the cloth bag 10 is mounted on the fixing ring 9, so that the fixing ring 9 is conveniently mounted or dismounted, and the cloth bag 10 is conveniently mounted or dismounted.

[0027] The use and replacement method of the product is as follows: as shown in Figures 1 to 6 the flexible rolling characteristics of the universal wheel 26, the product is easily pushed to move to one side of the cutting equipment, and the dust removal cover 3 is adjusted to cover on the cutting area of the cutting equipment. Then, the fixed block 22 is moved upward to drive the fixing plate 7 to move upward, so that whether the cloth bag 10 is installed in place is observed. After it is determined that the cloth bag 10 is installed in place, the air pump 1 is controlled to operate, so that the waste generated by the cutting equipment is sucked into the cloth bag 10. When the cloth bag 10 needs to be replaced, the telescopic cylinder 21 needs to be controlled to be elongated or shortened first, which drives the hinge shaft 17 and the two baffles 18 to rotate, and then the fixed block 22 is pushed and pulled to move upward, driving the fixing plate 7 to move upward, so that the fixing plate 7 is used to block one of the through holes 12, the fixing plate 7 is extruded and fixed on the limiting strip 14 by screwing the bolt 24, so that the cloth bag 10 is taken out for replacement. After the replacement is completed, the fixing plate 7 and the telescopic cylinder 21 are reset to ensure that the dust removal system can work normally and meet the dust removal needs of plate cutting.

[0028] Through the air pump 1 and the air pipe 2, a negative pressure environment is created for the dust cover 3, the dust cover 3 is placed in the plate cutting area, so that the waste generated in the plate cutting operation is sucked out, the fixing plate 7 is arranged, the fixing ring 9 provided with the cloth bag 10 is assembled between the dust collecting box 4 and the box cover 5, so that the airflow transported by the box cover 5 to the dust collecting box 4 is filtered, and the waste is left in the cloth bag 10. Moreover, the partition plate 6 is arranged in the box cover 5, the inner cavity of the box cover 5 is divided into two independent chambers, when one of the chambers of the box cover 5 is maintained, the other chamber of the box cover 5 can be used for dust removal, so that the continuity of dust removal is maintained, the plate cutting process can be smoothly and continuously carried out, the limiting strip 14 is arranged, the sealing plate 15 can only move up and down along the side wall of the box cover 5, so that the sealing plate 15 is used for the slot 13 or the through hole 12 sealing; for this purpose, when the cloth bag 10 is replaced, the sealing plate 15 is moved upward to seal the through hole 12, at the same time, the sealing plate 15 is moved upward and the slot 13 is no longer sealed, so that the cloth bag 10 is taken out through the slot 13, so that the replacement operation of the cloth bag is simplified, and the interference in the replacement process of the cloth bag 10 is reduced.

[0029] The above-mentioned embodiments are only preferred embodiments of the present application, and are not limited to the scope of the present application. Any equivalent changes or modifications made according to the structure, features and principles of the present application should be included in the scope of the present application.

Claims

1. A dust removal device for plate cutting, comprising an air pump (1), an air pipe (2) arranged on the air pump (1), and a dust removal cover (3) arranged on one side of the air pipe (2), characterized in that: The dust collecting box (4) with an open top is arranged between the air pipe (2) and the dust cover (3), the air pump (1) is communicated with the bottom of the dust collecting box (4) through the air pipe (2), the dust collecting box (4) is provided with the box cover (5) with an open bottom, the vertical partition plate (6) is arranged in the box cover (5), the fixed plate (7) is horizontally arranged between the box cover (5) and the dust collecting box (4), a plurality of sleeve holes (8) are formed in the fixed plate (7) on the two sides of the partition plate (6), the fixed ring (9) is sleeved in the sleeve hole (8), the cloth bag (10) with an open top is arranged in the fixed ring (9), the three-way pipe (11) is arranged between the box cover (5) and the dust cover (3), the through holes (12) are formed in the sidewall top of the box cover (5) on the two sides of the partition plate (6), the dust cover (3) is communicated with the through holes (12) through the three-way pipe (11), the through grooves (13) are formed in the box cover (5) below the through holes (12), the two L-shaped limiting strips (14) are arranged on the side of the through grooves (13) close to the partition plate (6), the sealing plate (15) is arranged between the two limiting strips (14), and the sealing plate (15) is assembled on the inner wall of the box cover (5) through the limiting strips (14).

2. The dust extraction apparatus for sheet cutting according to claim 1, characterized in that: The vertical partition plate (16) is arranged below the partition plate (6), the top end of the partition plate (16) and the bottom end of the partition plate (6) are in contact with the fixed plate (7), the partition plate (16), the partition plate (6) and the fixed plate (7) form a plate-shaped structure with a cross section, the two sides of the partition plate (6) are mounted on the inner wall of the box cover (5), the two sides of the partition plate (16) are mounted on the top inner wall of the dust collecting box (4), the hinge shaft (17) is horizontally arranged below the partition plate (16), the two sides of the hinge shaft (17) are respectively arranged in the dust collecting box (4), the hinge shaft (17) is rotatably mounted on the dust collecting box (4), the two baffle plates (18) are arranged on the hinge shaft (17) in the dust collecting box (4), one end of each of the two baffle plates (18) is mounted on the hinge shaft (17), the included angle between the two baffle plates (18) is 90-100 degrees, the baffle ring (19) is horizontally arranged below the baffle plate (18), the baffle ring (19) is mounted on the inner wall of the dust collecting box (4), and the bottom surface of the baffle plate (18) is in contact with the baffle ring (19).

3. The dust extraction apparatus for sheet cutting according to claim 2, characterized in that: One end of the hinge shaft (17) is provided with the hinge arm (20), one side of the hinge arm (20) is mounted on the hinge shaft (17), the other side of the hinge shaft (17) is provided with the telescopic cylinder (21), one end of the telescopic cylinder (21) is hinged to the hinge arm (20), and the other end of the telescopic cylinder (21) is hinged to the outer wall of the dust collecting box (4).

4. The dust extraction apparatus for sheet cutting according to claim 1, characterized by: The limiting strip (14) extends along the direction from the top end of the side wall of the box cover (5) to the bottom end of the side wall of the box cover (5), one end of the limiting strip (14) is installed on the inner wall of the box cover (5), the side of the fixing plate (7) is located in the inner cavity surrounded by the limiting strip (14) and the side wall of the box cover (5), the side of the fixing plate (7) away from the partition plate (6) is provided with a fixing block (22), the fixing block (22) is installed on the bottom of the fixing plate (7), the fixing block (22) is in contact with the bottom of the through slot (13), the through hole (12) and the through slot (13) are provided with a fixing pipe (23), the fixing pipe (23) is installed on the outer wall of the box cover (5), the fixing pipe (23) is internally threaded with a bolt (24), the box cover (5) is provided with a through hole, the bolt (24) is sleeved on the through hole, and one side of the bolt (24) is in contact with the fixing plate (7).

5. The dust extraction apparatus for sheet cutting according to claim 1, characterized in that: The air pump (1) is provided below the supporting plate (25), a plurality of universal wheels (26) are uniformly arranged below the supporting plate (25), the top ends of the plurality of universal wheels (26) are respectively installed on the supporting plate (25), the dust collecting box (4) is located above one side of the supporting plate (25), the supporting plate (25) and the dust collecting box (4) are provided with a support (27), the two sides of the support (27) are respectively connected with the dust collecting box (4) and the supporting plate (25), a plurality of object placing plates (28) are uniformly arranged on the support (27) in the vertical direction, the plurality of object placing plates (28) are respectively installed on the support (27), and the object placing plates (28) are provided with object placing grooves, the object placing grooves are arranged from the top surface of the object placing plate (28) to the bottom of the object placing plate (28).

6. The dust extraction apparatus for sheet cutting according to claim 1, wherein: The top end of the dust collecting box (4) and the bottom end of the box cover (5) are respectively provided with flanges (29), the inner ring of the flange (29) is installed on the outer wall of the dust collecting box (4) or the box cover (5), the flange (29) installed on the box cover (5) is connected with the flange (29) installed on the dust collecting box (4) through screws and nuts, the top end of the inner wall of the dust collecting box (4) and the bottom end of the inner wall of the box cover (5) are respectively provided with fixing grooves (30), the fixing ring (9) is sleeved in the fixing groove (30), the upper side of the fixing ring (9) and the lower side of the fixing ring (9) are respectively provided with sealing rings (31) made of elastic material, and the sealing rings (31) are extruded in the fixing groove (30) through the fixing ring (9); the plurality of sleeve holes (8) are uniformly distributed on one side of the fixing plate (7), the sleeve hole (8) adopts a stepped structure, the fixing ring (9) is movably sleeved on the top of the sleeve hole (8), the diameter of the outer wall of the fixing ring (9) and the diameter of the top of the sleeve hole (8) are both not less than the bottom hole diameter of the sleeve hole (8), and the top end of the cloth bag (10) is installed on the fixing ring (9).

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