Furniture board surface treatment device for baking varnish processing

Abstract

The utility model relates to the technical field of stoving varnish processing, and particularly discloses a furniture board surface treatment device for stoving varnish processing, which comprises an isolation mechanism, and a board surface polishing mechanism, a feeding mechanism and a dust falling mechanism are respectively arranged in the isolation mechanism; the feeding mechanism and the dust falling mechanism are arranged on the two sides of the plate surface grinding mechanism correspondingly. By means of the isolation room structure, the surrounding environment can be protected when surface treatment is carried out on a plate, a door plate structure of the isolation room can facilitate normal access of workers, the plate can be placed on a feeding table, and a peephole is matched with a glass plate, so that the situation that dust overflows can be avoided while internal plate machining and equipment operation can be observed, and the working efficiency is improved. And a power source of a second motor is switched on, the second motor can drive a threaded rod to rotate through a second rotating shaft, while the threaded rod rotates, a threaded sleeve moves, a limiting rod slides in a limiting hole, the threaded sleeve can drive a material pushing plate to horizontally move, and therefore the plate can be stably pushed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of baking finish processing, and specifically discloses a furniture board surface treatment device for baking finish processing. BACKGROUND

[0002] Baking finish processing is a process of coating and curing paint film through heating and baking, and is widely used in the surface treatment of metal, wood, plastic and other materials.

[0003] Furniture board is a kind of board material specially used for making furniture, usually made of wood or other composite materials. Furniture board is usually easy to cut, drill and assemble, suitable for various furniture manufacturing processes, and suitable for making various types of furniture such as tables, chairs, cabinets, bookshelves, etc. Furniture board is usually first made into a large whole board, and then cut into different sizes according to needs.

[0004] As disclosed in the utility model with the authorized announcement number CN220461060U, a wood furniture processing spray baking device is provided, which comprises a spray paint operation bucket, a support cover plate is arranged at the top of the spray paint operation bucket, a spray paint fixing support frame is arranged at the bottom surface of the support cover plate, the spray paint fixing support frame is provided with two or more, a spray paint pipe is arranged at the center of the inner side of the spray paint operation bucket, spray paint nozzles are arranged on the surface of the spray paint pipe, the spray paint nozzles are provided with two or more, and the spray paint nozzles are uniformly distributed on the pipe wall of the spray paint pipe. The device can realize the uniform rotation of multiple boards through the connection gear control of the spray paint fixing support frame, and can realize the uniform spraying effect of multiple boards in cooperation with the spray paint nozzles in the middle. The spray paint nozzles can be detached, which facilitates subsequent cleaning, and different aperture spray paint nozzles can be selected according to different densities, which is convenient to operate. At present, when furniture boards are sprayed, in order to ensure the flatness of the surface of the furniture board and avoid the appearance of hooks and protrusions on the surface, the surface needs to be repaired again after the spraying is completed. This not only easily causes the loss of local paint surface, but also easily causes the visual difference of the paint surface position after filling. Therefore, a surface treatment structure for furniture boards before spraying is needed, which can flatten the hooks and protrusions on the surface of the large furniture board before cutting. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a furniture board surface treatment device for baking finish processing, which solves the problem of cleaning the surface hooks and protrusions of the large furniture board before cutting during the spraying process.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A furniture board surface treatment device for paint baking processing, isolation mechanism is provided with board surface polishing mechanism, feeding mechanism and dust falling mechanism respectively in the inside,

[0007] Feeding mechanism and dust falling mechanism are arranged on both sides of board surface polishing mechanism.

[0008] Further, the isolation mechanism includes a base, the upper end of the base is provided with an isolation room, one end of the isolation room is an open structure, and a door plate is arranged at the opening position;

[0009] A peep hole is formed in one side of the isolation room and penetrates the inside thereof, a glass plate is arranged on the inner side of the peep hole, and the glass plate is made of transparent tempered glass material;

[0010] A discharge port is formed in the end of the isolation room away from the door plate and penetrates the inside thereof, and a sealing plate is hingedly installed on the outer wall surface of one end of the isolation room at the discharge port through a door hinge.

[0011] Further, the board surface polishing mechanism includes side plates, the upper end of the base is further provided with a cylinder one, the inside of the cylinder one is provided with a piston rod one for extension and retraction, the end of the piston rod one is provided with an adapter seat, and a support frame is arranged between the two adapter seats.

[0012] Further, bearings are arranged on the surfaces of the two side plates and the two sides of the support frame, the same shaft rod penetrates between the two bearings symmetrically distributed on the same horizontal plane, and the surface of the shaft rod is arranged in interference fit with the inner ring wall of the bearing;

[0013] A motor one is arranged on the outer wall surface of the side plate and the outer wall surface of the support frame, the inside of the motor one is provided with a driving shaft one, the end of the driving shaft one is fixed to one end of the shaft rod through a shaft coupling, and a grinding roller is fixedly sleeved on the surface of the shaft rod.

[0014] Further, the feeding mechanism includes a feeding table, a motor two is arranged below the feeding table, the inside of the motor two is provided with a driving shaft two, a threaded rod is further arranged below the feeding table, one end of the threaded rod is drivingly connected with the driving shaft two through a shaft coupling, the other end of the threaded rod is rotatably provided with a rod seat, and the outer wall surface upper end of the rod seat is fixedly assembled with the lower end of the feeding table through a support.

[0015] Further, a threaded sleeve is threadedly connected to the surface of the threaded rod, a limiting rod is fixedly arranged on the outer wall surface of the threaded sleeve, a limiting hole is formed in the inside of the surface of the feeding table, the surface of the limiting rod is slidingly and tightly arranged with the limiting hole, a pushing plate is slidingly and tightly arranged on the upper end of the feeding table, and the upper end of the limiting rod is fixedly assembled with the pushing plate through a screw.

[0016] Further, the feeding table is close to one end of the polishing roller, and positioning plates are arranged on the two sides of the feeding table respectively, a second air cylinder is slidably arranged in the positioning plate, a second piston rod is arranged in the second air cylinder and used for extension and retraction, and a baffle is fixed to the end of the second piston rod.

[0017] Further, the dust falling mechanism comprises a dust suction pipe, and dust suction nozzles are arranged on the inner side of the dust suction pipe in a vertical direction.

[0018] Further, a connecting pipe is arranged at one end of the dust suction pipe and slidably arranged in the isolation room, an installation plate is arranged on the outer side of the isolation room, a gas pump is arranged at the upper end of the installation plate, the air inlet position of the gas pump is connected with the connecting pipe through a flange, a dust collecting cylinder is flange-connected to the air outlet position of the gas pump, and a filter element is embedded in the dust collecting cylinder.

[0019] The working principle and advantages of the scheme are as follows: 1. The isolation room structure can protect the surrounding environment during the surface treatment of the plate, the door plate structure of the isolation room can facilitate the normal entry and exit of workers, and the plate can be placed on the feeding table, the glass plate can be used in cooperation with the peephole to observe the plate processing and equipment operation in the isolation room, and the outflow of dust can be avoided, the power supply of the second motor is connected, the second motor drives the threaded rod to rotate through the second rotating shaft, the threaded sleeve moves when the threaded rod rotates, the limiting rod slides in the limiting hole, the threaded sleeve drives the pushing plate to move horizontally, and the plate can be stably pushed, the distance between the two baffles can be adjusted through the extension and retraction of the second piston rod of the second air cylinder during the pushing process, the baffles on the two sides can limit the plate during the conveying of the plate, and the plate can be conveyed horizontally;

[0020] 2. As described in 1, when the plate passes through the two polishing rollers distributed in a vertical direction and the upper and lower surfaces of the plate are processed, the supporting frame can be adjusted in height through the first piston rod of the first air cylinder, the distance between the two polishing rollers can be adjusted, the polishing roller can be in close contact with the surface of the plate, the lower polishing roller is flush with the upper end surface of the feeding table, and the height of the upper polishing roller only needs to be adjusted, then the shaft rod is driven to rotate through the driving of the first motor, the linkage of the polishing rollers is realized, and the polishing roller can smooth the hooking or protruding part of the plate during the conveying of the plate.

[0021] Other advantages, objects and features of the present application will be in part apparent and in part pointed out hereinafter in the specification, and in part will be observed by persons skilled in the art upon examination of the following specification, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by the means recited in the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 This is a schematic diagram showing the distribution of the various mechanisms in the embodiment;

[0023] Figure 2 This is a front view of the isolation room in an embodiment.

[0024] Figure 3 This is a schematic diagram of the rear of the isolation room in an embodiment;

[0025] Figure 4 This is a schematic diagram of the grinding roller structure in an embodiment;

[0026] Figure 5 This is a schematic diagram of the feeding platform mechanism in an embodiment.

[0027] Figure 6 This is a schematic diagram showing the position distribution of the threaded rod in an embodiment;

[0028] Figure 7 This is a schematic diagram of the vacuum tube mechanism in an embodiment;

[0029] Figure 8 This is an enlarged schematic diagram of point A of this utility model.

[0030] The following are labeled in the attached diagram: 1. Isolation mechanism; 2. Plate surface grinding mechanism; 3. Feeding mechanism; 4. Dust suppression mechanism; 10. Base; 11. Isolation chamber; 12. Door panel; 13. Glass plate; 14. Discharge port; 15. Sealing plate; 16. Viewing hole; 20. Side plate; 21. Cylinder 1; 22. Connecting seat; 23. Bearing; 24. Shaft; 25. Support frame; 26. Motor 1; 27. Grinding roller; 30. Feeding table; 31. Motor 2; 32. Threaded rod; 33. Rod seat; 34. Threaded sleeve; 35. Limiting rod; 36. Limiting hole; 37. Push plate; 3001. Positioning plate; 3002. Cylinder 2; 3003. Baffle; 40. Dust suction pipe; 41. Dust suction nozzle; 42. Connecting pipe; 43. Mounting plate; 44. Air pump; 45. Dust collection cylinder; 46. Filter element. Detailed Implementation

[0031] The following detailed description illustrates the specific implementation method:

[0032] Example

[0033] like Figures 1 to 8 As shown, a furniture board surface treatment device for baking paint processing is disclosed, including an isolation mechanism 1. The isolation mechanism 1 is equipped with a board surface grinding mechanism 2, a feeding mechanism 3 and a dust suppression mechanism 4. The feeding mechanism 3 and the dust suppression mechanism 4 are respectively arranged on both sides of the board surface grinding mechanism 2.

[0034] The isolation mechanism 1 comprises a base 10, which is rectangular in structure, and an isolation room 11 provided at the upper end of the base 10. The edge position of the isolation room 11 is fixedly assembled with the surface of the base 10 by screws. One end of the isolation room 11 is of an open structure, and a door panel 12 is provided at the opening position. The door panel 12 is of a double-leaf door structure and is hingedly provided at the opening and closing position of the isolation room 11 by a door hinge. The door panel 12 is opened outward. A peephole 16 penetrating through the inside of the isolation room 11 is formed at one side of the isolation room 11. The peephole 16 can be used to observe the board processing and equipment working conditions. A glass panel 13 is provided at the inner side of the peephole 16. The edge position of the glass panel 13 is fixedly assembled with the inner side of the peephole 16. The glass panel 13 is made of transparent tempered glass material, which can ensure the stable closure of the isolation room 11 and facilitate the observation of the internal conditions of the isolation room 11. A discharge port 14 penetrating through the inside of the isolation room 11 is formed at the end of the isolation room 11 away from the door panel 12. The discharge port 14 is of a strip structure. A sealing plate 15 is hingedly installed on the outer wall surface of the end of the isolation room 11 at the discharge port 14 by a door hinge. The sealing plate 15 is arranged in close contact with the outer wall surface of the isolation room 11 and covers the discharge port 14. The sealing plate 15 is outwardly opened. After the surface cleaning of the board is completed, the board can be pushed out through the discharge port 14. After the sealing plate 15 is lifted, the board can be directly discharged. Workers can receive the board from the discharge port 14.

[0035] The plate surface polishing mechanism 2 comprises side plates 20, the number of which is two and which are symmetrically arranged along the lateral central axis of the base 10. The lower end of the side plate 20 is fixedly assembled with the surface of the base 10. The upper end of the base 10 is further provided with air cylinders 21. The lower end of the air cylinder 21 is fixedly connected with the surface of the base 10 by screws. The number of the air cylinders 21 is two and they are symmetrically arranged along the lateral central axis of the base 10. The inside of the air cylinder 21 is provided with a piston rod 1 for extension and retraction. The end of the piston rod 1 is provided with an adapter seat 22. The lower end of the adapter seat 22 is fixedly assembled with the end of the piston rod 1 by screws. A support frame 25 is arranged between the two adapter seats 22. The two sides of the support frame 25 are respectively welded and fixed with the end faces of the adapter seats 22.

[0036] The surfaces of the two side plates 20 and the two sides of the support frame 25 are provided with bearings 23, the abutment positions of the side plates 20 and the support frame 25 with the corresponding bearings 23 are fixedly assembled by screws, the same horizontal plane is provided with the same shaft 24 between the two symmetrically distributed bearings 23, the surface of the shaft 24 is provided with an interference fit with the inner wall of the bearing 23, the outer wall surface of the side plate 20 and the outer wall surface of the support frame 25 are provided with a motor 26, the surface of the side plate 20 and the surface of the support frame 25 are fixedly installed by a support and the corresponding motor 26, the inside of the motor 26 is provided with a driving shaft 1, the end of the shaft 1 is fixed with the one end of the shaft 24 through a shaft coupling, the surface of the shaft 24 is fixedly sleeved with a grinding roller 27, the grinding roller 27 is distributed in two along the up and down, and the distance between the two grinding rollers 27 can be adjusted through the extension of the piston rod 1 of the cylinder 21, so that the thickness of the plate can be adjusted, so that the grinding roller 27 can stably contact with the surface of the plate during grinding, the grinding roller 27 is a stainless steel roller, the surface of which is embedded with natural or artificial grinding stone, which is suitable for rough grinding and deburring, the grinding roller 27 is a non-standard structure, and the surface of the stainless steel roller can be covered with abrasive particles such as alumina and silicon carbide, which is suitable for fine grinding and polishing, and can be used flexibly according to actual needs, mainly the surface of the plate can be flattened and smoothed.

[0037] The feeding mechanism 3 comprises a feeding table 30, the feeding table 30 is a T-shaped structure, the lower end surface of the feeding table 30 is fixedly assembled with the upper end of the base 10 through a support, the lower side of the feeding table 30 is provided with a motor 31, the inside of the motor 31 is provided with a driving shaft 2, the lower side of the feeding table 30 is further provided with a threaded rod 32, one end of the threaded rod 32 is drivingly connected with the shaft 2 through a shaft coupling, the other end of the threaded rod 32 is rotatably provided with a rod seat 33, the outer wall surface of the upper end of the rod seat 33 is fixedly assembled with the lower end of the feeding table 30 through a support, the driving of the motor 31 can drive the threaded rod 32 to link;

[0038] The surface of the threaded rod 32 is threadedly connected with a threaded sleeve 34, the outer wall surface of the threaded sleeve 34 is fixedly provided with a limiting rod 35, the surface of the limiting rod 35 is slidingly and tightly provided with a limiting hole 36 which is a strip-shaped structure in the feeding table 30, the upper end of the limiting rod 35 is fixedly assembled with a pushing plate 37 through a screw, the driving of the threaded rod 32 can rotate the threaded sleeve 34, and the limiting rod 35 slides in the limiting hole 36, so that the pushing plate 37 can move horizontally, thereby realizing the horizontal pushing of the processed plate;

[0039] The feeding table 30 is close to one end of the polishing roller 27, and positioning plates 3001 are arranged on the two sides of the feeding table 30 respectively. The lower end of the positioning plate 3001 is fixed to the surface of the feeding table 30 through screws. A cylinder two 3002 is slidably penetrated into the positioning plate 3001. The outer wall surface of the cylinder two 3002 is fixedly installed on the surface of the positioning plate 3001 through a support. A piston rod two is arranged in the cylinder two 3002 for extension and contraction. The end of the piston rod two is fixedly provided with a baffle 3003. The two baffles 3003 are oppositely movable, so that the two sides of the plate can be limited during plate conveying, and the plate can be continuously conveyed without tilting.

[0040] The dust falling mechanism 4 comprises a dust suction pipe 40. The dust suction pipe 40 is a ring-shaped pipe structure. The lower end of the outer wall of the dust suction pipe 40 is fixedly and perpendicularly arranged on the surface of the base 10 through a support. Dust suction nozzles 41 are arranged on the inner side of the dust suction pipe 40 in an up-down direction. The dust suction nozzles 41 are penetrated into the dust suction pipe 40, and the connection positions of the two are fixedly welded. After the plate is polished by the polishing roller 27 and is discharged through the discharge port 14, the suction effect of the air pump 44 can be used to suck dust from the upper and lower surfaces of the plate and the environment of the position of the discharge port 14.

[0041] One end of the dust suction pipe 40 is penetrated into an adapter pipe 42. The adapter pipe 42 is slidably penetrated into the isolation room 11. An installation plate 43 is arranged on the outer side of the isolation room 11. One end of the installation plate 43 is fixedly arranged on the surface of the isolation room 11. An air pump 44 is arranged on the upper end of the installation plate 43. The lower end of the air pump 44 is fixedly arranged on the installation plate 43 through a support. The air inlet position of the air pump 44 is flange-connected with the adapter pipe 42. The air outlet position of the air pump 44 is flange-connected with a dust collecting cylinder 45. The dust collecting cylinder 45 is internally embedded with a filter core 46. The suction effect of the air pump 44 can provide sufficient suction force during dust suction. Dust is sent into the dust collecting cylinder 45 through the air pump 44, and is filtered and collected through the filter core 46. The filter core 46 is made of non-woven fabric material, and has good air permeability and dust filtering effect.

[0042] In specific implementation

[0043] Before paint baking processing, in order to smooth and flatten the surface of the furniture plate, the plate can be painted and polished. The isolation room 11 can protect the surrounding environment during surface treatment of the plate. The door plate 12 of the isolation room 11 can facilitate normal entry and exit of workers, and the plate can be placed on the feeding table 30. The glass plate 13 matched with the peephole 16 can be used to observe plate processing and equipment operation in the isolation room 11, and prevent dust from overflowing.

[0044] When the plate needs to be fed, the power supply of the motor two 31 is turned on, the motor two 31 is connected with a forward and reverse switch through a wire, the forward and reverse operation of the motor two 31 can be realized through the forward and reverse switch, the back and forth movement of the pushing plate 37 is realized, the motor two 31 can drive the threaded rod 32 to rotate through the rotating shaft two, the threaded sleeve 34 is moved at the same time when the threaded rod 32 rotates, at this time, the limiting rod 35 slides in the limiting hole 36, the threaded sleeve 34 can drive the pushing plate 37 to move horizontally, so that the plate can be stably pushed, and in the pushing process, the distance between the two baffles 3003 can be adjusted through the extension and retraction of the piston rod two of the cylinder two 3002, so that the baffles 3003 on both sides can limit the plate during conveying, so that the plate can be conveyed horizontally.

[0045] In order to be able to polish the plate with different thickness, when the plate passes through the two polishing rollers 27 distributed above and below and the upper and lower surfaces of the plate are processed by hooks or protrusions, the piston rod one of the cylinder one 21 is first used to drive the supporting frame 25 to be adjusted in height, so that the distance between the two polishing rollers 27 can be adjusted, so that the polishing rollers 27 can be in close contact with the surface of the plate, and the lower polishing roller 27 is flush with the upper end surface of the feeding table 30, and only the height of the upper polishing roller 27 needs to be adjusted, then the shaft one is driven by the motor one 26 to rotate the shaft rod 24, so that the linkage of the polishing rollers 27 can be realized, and then the part of the plate passing through the polishing rollers 27 can be flattened and smoothed during conveying.

[0046] When the plate is polished and moves out from the two polishing rollers 27 above and below, it is continuously moved and pushed out through the discharge port 14, and when passing through the discharge port 14, the sealing plate 15 can be directly lifted to discharge, and at the same time of discharging the plate, in order to avoid dust overflowing from the position of the discharge port 14, the power supply of the air pump 44 is turned on, the air pump 44 can produce a suction effect, so that the dust at the position of the discharge port 14 can be sucked into the dust suction pipe 40 through the dust suction nozzle 41, and then sent to the air pump 44 through the connecting pipe 42, and then sent to the dust collecting cylinder 45 through the air pump 44, and the air can be filtered through the filter element 46, and the dust is collected in the filter element 46.

[0047] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be regarded as the protection scope of the present application, and these will not affect the effect and practicability of the present application.

Claims

1. A furniture board surface treatment device for paint baking processing, characterized by: The isolation mechanism is internally provided with a plate surface polishing mechanism, a feeding mechanism and a dust falling mechanism respectively; The feeding mechanism and the dust falling mechanism are respectively arranged on the two sides of the plate surface polishing mechanism.

2. The furniture board surface treatment device for paint baking processing according to claim 1, characterized in that: The isolation mechanism comprises a base, and an isolation room is arranged at the upper end of the base. An opening structure is arranged at one end of the isolation room, and a door plate is arranged at the opening position. A peep hole penetrating through the inside of the isolation room is arranged on one side of the isolation room, and a glass plate is arranged on the inner side of the peep hole.

3. The furniture board surface treatment apparatus for paint baking processing according to claim 2, characterized in that: The glass plate is made of transparent tempered glass material.

4. The furniture board surface treatment apparatus for paint baking processing according to claim 3, characterized in that: An outlet penetrating through the inside of the isolation room is arranged at the end of the isolation room away from the door plate, and a sealing plate is hingedly installed on the outer wall surface of the end of the isolation room through a door hinge. The plate surface polishing mechanism comprises side plates, and a cylinder one is further arranged at the upper end of the base.

5. The furniture board surface treatment apparatus for paint baking processing according to claim 4, characterized in that: A piston rod one is arranged in the cylinder one for extension and retraction, an adapter seat is arranged at the end of the piston rod one, and a support frame is arranged between the two adapter seats.

6. The furniture board surface treatment apparatus for paint baking processing according to claim 5, characterized in that: Bearings are arranged on the surfaces of the two side plates and the two sides of the support frame, and the same shaft rod penetrates through the two bearings symmetrically distributed on the same horizontal plane.

7. The furniture board surface treatment apparatus for paint baking processing according to claim 6, characterized in that: The surface of the shaft rod is in interference fit with the inner ring wall of the bearing.

8. The furniture board surface treatment apparatus for paint baking processing according to claim 7, characterized in that: A motor one is arranged on the outer wall surface of the side plate and the outer wall surface of the support frame, a driving shaft one is arranged in the motor one, the end of the driving shaft one is fixed to one end of the shaft rod through a coupling, and a polishing roller is fixedly sleeved on the surface of the shaft rod.

9. The furniture board surface treatment apparatus for paint baking processing according to claim 8, characterized in that: The feeding mechanism comprises a feeding table, a motor two is arranged below the feeding table, a driving shaft two is arranged in the motor two, a threaded rod is further arranged below the feeding table, one end of the threaded rod is drivingly connected to the driving shaft two through a coupling, the other end of the threaded rod is rotatably provided with a rod seat, and the outer wall surface of the rod seat is fixedly assembled with the lower end of the feeding table through a support. A threaded sleeve is threadedly connected to the surface of the threaded rod, a limiting rod is fixedly arranged on the outer wall surface of the threaded sleeve, a limiting hole penetrating through the inside of the feeding table is arranged on the surface of the feeding table, the surface of the limiting rod is in sliding fit with the limiting hole, a pushing plate is slidingly arranged on the upper end of the feeding table, and the upper end of the limiting rod is fixedly assembled with the pushing plate through a screw. The other end of the feeding table close to the polishing roller is provided with positioning plates on the two sides, a cylinder two is slidingly arranged in the positioning plates, a piston rod two is arranged in the cylinder two for extension and retraction, and a baffle is fixedly arranged at the end of the piston rod two. The dust falling mechanism comprises a dust suction pipe, and dust suction nozzles are arranged on the inner side of the dust suction pipe in an up-down direction. An adapter pipe is penetratingly arranged at one end of the dust suction pipe, the adapter pipe is slidingly arranged in the isolation room, an installation plate is arranged outside the isolation room, a gas pump is arranged at the upper end of the installation plate, the air inlet position of the gas pump is flange-connected with the adapter pipe, a dust collecting cylinder is flange-connected to the air outlet position of the gas pump, and a filter element is embedded in the inside of the dust collecting cylinder.

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