A dining chair burr removing device

Abstract

The utility model discloses a kind of dining chair burr removal devices, comprising: round box, its bottom is set to open and sealing movable contact has bottom plate;Pipe, its bottom end is set to block structure and is embedded and fixed in the top of round box, the bottom end of the pipe is annular and has four air inlets with equal intervals, the outside top of pipe is annular and has multiple air outlets.The utility model is provided with a series of structures, which can polish the dining chair wood board and remove burrs, and integrally suck, filter and collect the dust generated at the polishing position, reduce the phenomenon that a large amount of dust directly scatters outward to pollute the site environment and harm the body of personnel, improve the environmental protection of dining chair wood polishing and burr removal, without additionally setting power suction equipment, improve the environmental protection effect while having good energy-saving effect, and the impurities and filter elements filtered and collected can be removed and cleaned by simple rotation, providing convenience for subsequent maintenance work.

Description

Technical Field

[0001] This utility model relates to the field of wood polishing technology, specifically a device for removing burrs from dining chairs. Background Technology

[0002] Dining chairs refer to a major category of furniture and equipment essential for humans to maintain normal life, engage in production practices, and carry out social activities. Furniture has also continuously developed and innovated with the times, and now it comes in a wide variety of categories, materials, types, and uses. It is an important foundation for establishing work and living spaces. Dining chairs are an important part of furniture. During the production of dining chair wood, a large number of burrs will be generated on the surface of the wood boards. If they are not removed, they will cause injury to users during the use of the furniture.

[0003] Currently, existing equipment for sanding and removing burrs from wooden boards used for dining chairs has certain shortcomings in use. The sanding and deburring process inevitably generates a significant amount of dust, and there is a lack of a mechanism that continuously tracks and controls dust as it moves with the sanding position. This allows dust to easily and directly disperse in large quantities, affecting the environment and harming workers' health, resulting in poor safety and environmental friendliness during the sanding and deburring process. Therefore, this application proposes a burr removal device for dining chairs to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a burr removal device for dining chairs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a burr removal device for dining chairs, comprising:

[0006] A round box with an open and sealed bottom that is in contact with a base plate.

[0007] A circular tube with a sealing structure at its bottom end and fixed to the top of a circular box. The bottom end of the circular tube has four air inlets at equal intervals in a ring shape, and the top of the outer side of the circular tube has multiple air outlets in a ring shape.

[0008] The handle consists of two sets, which are fixedly connected to the right and front sides of the round tube respectively;

[0009] The grinding disc is located below the base plate;

[0010] The L-shaped vacuum tubes are multiple sets that are installed and fixed in a ring at equal intervals on the top of the base plate and surround the grinding disc. The bottom end of the L-shaped vacuum tubes is connected to a vacuum hood located below the base plate.

[0011] The telescopic rotary drive generates a suction component, which is rotatably embedded in the bottom of the base plate, located inside the round tube, and fixedly connected to the top of the grinding disc.

[0012] The top plate is fixedly connected to the top of the round tube by four screws. The top of the plate is fixedly installed with an output shaft and a drive motor that is fixedly connected to the top of the telescopic rotary drive suction assembly. The telescopic rotary drive suction assembly is used to drive the sanding disc to rotate and sand the surface of the dining chair wood to remove burrs when the drive motor is started. It is also used to generate suction force on the lower part of the round tube. The suction force is used to draw the dust into the round box through four air inlets. Under the suction force, the round box draws and collects the dust generated at the sanding position by multiple L-shaped dust collection pipes surrounding the sanding disc.

[0013] The threaded lifting vertical guide drive assembly is threaded onto the outside of the round tube and fixedly connected to the top of the base plate.

[0014] Rectangular support rods, consisting of four groups fixedly connected to the top of the base plate in a ring at equal intervals;

[0015] The stainless steel filter screen consists of four sets, each connected to the top of a corresponding rectangular support rod and in movable contact with the bottom of the round tube, and is adapted to the corresponding air inlet. The four stainless steel filter screens are used to filter and collect dusty gas inside the round box when it is drawn in. The threaded lifting and lowering vertical guide drive assembly is used to drive the bottom plate to move down and unseal the round box, so that the collected dust and impurities can be cleaned and discharged later. The movement of the bottom plate moves the stainless steel filter screen down through the rectangular support rods, so that personnel can clean it.

[0016] Preferably, the stainless steel filter screen is fixedly connected to the top of the corresponding rectangular support rod by welding.

[0017] Preferably, the stainless steel filter screen is detachably connected to the top of the corresponding rectangular support rod.

[0018] Preferably, a rectangular sleeve is fixedly connected to the bottom of the stainless steel filter screen, and the top of the rectangular support rod is movably fitted into the corresponding rectangular sleeve.

[0019] Preferably, the telescopic rotary drive suction assembly includes a square rotating rod, a rotating shaft, and a centrifugal impeller. The square rotating rod is rotatably embedded in the bottom of the base plate, the grinding disc is fixedly connected to the bottom of the square rotating rod, the rotating shaft is located inside the circular tube and is fixedly connected to the bottom end of the output shaft of the drive motor, and the bottom end of the rotating shaft is provided with a square sliding groove that slides and fits with the outside of the square rotating rod. The centrifugal impeller is located inside the circular tube and is fixedly sleeved on the rotating shaft.

[0020] Preferably, the threaded lifting vertical guide drive assembly includes an internal threaded sleeve, multiple handles, and two vertical guide rods. The lower outer side of the circular tube has an external thread, and the internal threaded sleeve is threaded onto the external thread. A first bearing is fixedly installed at the bottom of the internal threaded sleeve. The two vertical guide rods are symmetrically fixedly connected to the inner ring of the first bearing. The bottom ends of the two vertical guide rods are fixedly connected to the top of the base plate. The circular box is slidably sleeved on the two vertical guide rods. The multiple handles are fixedly connected to the outer side of the internal threaded sleeve in a ring at equal intervals.

[0021] Preferably, the bottom end of the circular tube has a circular through hole that is in contact with the outer side of the rotating shaft.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. Through the combination of a set round box, base plate, round tube, top plate, drive motor, grinding disc and telescopic rotary drive to generate suction components, it is able to sand and remove burrs from the wooden boards of dining chairs;

[0024] 2. Through the coordinated action of the telescopic rotary drive, suction components, round tube, base plate, round box, air inlet, stainless steel filter, air outlet, and L-shaped dust suction pipe, dust generated at the sanding location can be collected, filtered, and extracted in one go during sanding and deburring. This reduces the phenomenon of large amounts of dust directly drifting outwards, polluting the on-site environment, and harming people's health, thus improving the environmental friendliness of sanding and deburring wood for dining chairs.

[0025] Furthermore, the dust collection and suppression work does not require a separate electric dust collection device, which improves environmental protection while also having a good energy-saving effect;

[0026] 3. Through the combination of the set round box, base plate, rectangular support rod, stainless steel filter screen and threaded lifting vertical guide drive assembly, the impurities and filter elements collected by the filter can be removed and cleaned by simple rotation, which provides convenience for subsequent maintenance work;

[0027] 4. By using a rectangular sleeve designed in another way to cooperate with the rectangular support rod, the stainless steel filter screen can be easily and quickly disassembled and replaced by personnel through simple plugging and unplugging after being moved downwards, which improves the flexibility of use and the convenience of subsequent filter replacement.

[0028] This utility model, through a series of structures, can sand and deburr wooden boards for dining chairs, and simultaneously extract, filter, and collect the dust generated at the sanding location. This reduces the phenomenon of large amounts of dust directly drifting outwards, polluting the on-site environment, and harming people's health, thus improving the environmental friendliness of sanding and deburring wooden dining chairs. Furthermore, it eliminates the need for a separate electric vacuum cleaner, improving environmental protection while also achieving good energy-saving effects. Additionally, the impurities and filter components collected can be removed and cleaned through a simple rotation, providing convenience for subsequent maintenance work. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a burr removal device for dining chairs according to Embodiment 1 of this utility model;

[0030] Figure 2 This is a front sectional view of a burr removal device for dining chairs according to Embodiment 1 of this utility model;

[0031] Figure 3This is a front sectional view of a burr removal device for dining chairs according to Embodiment 2 of this utility model.

[0032] In the diagram: 1. Round box; 101. Base plate; 102. L-shaped suction pipe; 2. Round tube; 201. Air outlet; 202. Handle handle; 203. Top plate; 204. Drive motor; 205. Air inlet; 3. Rotating shaft; 301. Centrifugal impeller; 302. Square rotating rod; 4. Grinding disc; 5. Rectangular support rod; 501. Stainless steel filter screen; 502. Rectangular ferrule; 6. Internal threaded sleeve; 601. Vertical guide rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1

[0035] like Figures 1 to 2 As shown, the burr removal device for dining chairs proposed in this embodiment includes:

[0036] Round box 1, the bottom of which is set to be open and sealed to be in active contact with bottom plate 101;

[0037] The bottom end of the circular tube 2 is set as a sealing structure and is embedded and fixed to the top of the circular box 1. The bottom end of the circular tube 2 is provided with four air inlets 205 at equal intervals in an annular shape, and the top of the outer side of the circular tube 2 is provided with multiple air outlets 201 in an annular shape.

[0038] Handle 202, which consists of two sets and is fixedly connected to the right and front sides of the round tube 2 respectively;

[0039] Grinding disc 4 is located below base plate 101;

[0040] The L-shaped vacuum tubes 102 are arranged in multiple sets and are fixedly embedded in the top of the base plate 101 in a ring at equal intervals and surround the grinding disc 4. The bottom end of the L-shaped vacuum tubes 102 is connected to a vacuum cover located below the base plate 101. The top of the base plate 101 is provided with multiple mounting holes in a ring shape that are fixedly connected to the outer side of the corresponding L-shaped vacuum tubes 102.

[0041] The telescopic rotary drive generates a suction component, which is rotatably embedded in the bottom of the base plate 101 and located inside the round tube 2, and is fixedly connected to the top of the grinding disc 4.

[0042] The top plate 203 is fixedly connected to the top of the round tube 2 by four screws. The top of the plate is fixedly installed with a drive motor 204 whose output shaft is fixedly connected to the top of the telescopic rotary drive suction assembly. The telescopic rotary drive suction assembly is used to drive the sanding disc 4 to rotate and sand the surface of the dining chair wood to remove burrs when the drive motor 204 is started. It is also used to generate suction force on the lower part of the round tube 2. The suction force is used to draw the dust into the round box 1 through four air inlets 205. Under the suction force, the round box 1 draws and collects the dust generated at the sanding position by multiple L-shaped dust suction pipes 102 surrounding the sanding disc 4.

[0043] The threaded lifting vertical guide drive assembly is threaded onto the outside of the round tube 2 and fixedly connected to the top of the base plate 101.

[0044] Rectangular support rods 5, which are in four groups and are fixedly connected to the top of the base plate 101 in a ring with equal spacing;

[0045] The stainless steel filter screen 501 consists of four sets, each connected to the top of a corresponding rectangular support rod 5 and in movable contact with the bottom end of the round tube 2, and is adapted to the corresponding air inlet 205. The four stainless steel filter screens 501 are used to filter and collect dusty gas in the round box 1 when it is drawn into the round box 1. The threaded lifting vertical guide drive assembly is used to drive the bottom plate 101 to move down and unseal the round box 1 so that the dust and impurities collected by the filter can be cleaned and discharged. The movement of the bottom plate 101 moves the stainless steel filter screens 501 down through the rectangular support rods 5 so that personnel can clean them.

[0046] In this embodiment, the top of the round box 1 is provided with an embedded through hole that is fixedly connected to the outside of the round tube 2.

[0047] It should be noted that the bottom of the stainless steel filter 501 is equipped with a removable breathable dust filter cloth. The breathable dust filter cloth is preferably made of polypropylene filter cloth, which has good chemical stability and air permeability, high porosity and uniform pore size, and can effectively intercept suspended dust particles in the gas. This material is a conventional application material in the fields of industrial dust removal and gas filtration, and is widely used in various ventilation systems and dust removal equipment. Specific specifications (such as density and filtration accuracy) can be selected according to the actual working conditions. The conventional configuration of breathable filter cloth and the corresponding specifications according to the application are conventional and well-known technical means in this field, and will not be elaborated further.

[0048] Furthermore, the stainless steel filter screen 501 is fixedly connected to the top of the corresponding rectangular support rod 5 by welding.

[0049] Furthermore, such as Figure 2As shown, the telescopic rotary drive suction assembly includes a square rotating rod 302, a rotating shaft 3, and a centrifugal impeller 301. The square rotating rod 302 is rotatably embedded in the bottom of the base plate 101. The grinding disc 4 is fixedly connected to the bottom of the square rotating rod 302. The rotating shaft 3 is located inside the circular tube 2 and is fixedly connected to the bottom end of the output shaft of the drive motor 204. The bottom end of the rotating shaft 3 is provided with a square sliding groove that slides and fits with the outside of the square rotating rod 302. The centrifugal impeller 301 is located inside the circular tube 2 and is fixedly sleeved on the rotating shaft 3.

[0050] In this embodiment, the bottom end of the round tube 2 is provided with a round through hole that is in contact with the outer side of the rotating shaft 3, so that the rotating shaft 3 can move through it; a round through hole is provided at the top center of the bottom plate 101, and a second bearing is fixedly sleeved in the round through hole. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the square rotating rod 302, so as to achieve the effect of rotating and installing the square rotating rod 302.

[0051] In this embodiment, the square rotating rod 302, the rotating shaft 3, and the centrifugal impeller 301 work together. The rotating shaft 3 is driven to rotate by the drive motor 204. Utilizing the characteristic of the square component having sharp, interlocking edges, the rotating shaft 3 rotates, causing the square rotating rod 302 to rotate as a whole through the sharp edges of the square groove. The square rotating rod 302 drives the grinding disc 4 to rotate, polishing and deburring the surface of the dining chair's wood. The rotation of the rotating shaft 3 also drives the centrifugal impeller 301 to rotate. When the centrifugal impeller 301 rotates, it draws air into the round box 1 through four air inlets 205 and a stainless steel filter screen 501. The dust generated at the sanding location is further drawn into the round box 1 through multiple L-shaped suction pipes 102. The dust is then collected in the round box 1 by the breathable dust filter cloth on the four stainless steel filter screens 501. The gas is drawn into the round pipe 2 and discharged upward through multiple air outlets 201. This achieves the effect of driving the sanding disc 4 to rotate and sand and remove burrs, while simultaneously drawing in, filtering and collecting the dust generated at the sanding location. This reduces the phenomenon of large amounts of dust directly drifting outward, polluting the on-site environment and harming people's health, and improves the environmental friendliness of sanding and deburring wood for dining chairs.

[0052] It should be noted that when the centrifugal impeller 301 rotates, the gas flows from bottom to top.

[0053] Furthermore, such as Figure 1 and 2 As shown, the threaded lifting vertical guide drive assembly includes an internal threaded sleeve 6, multiple handles and two vertical guide rods 601. The lower outer side of the circular tube 2 is provided with an external thread. The internal threaded sleeve 6 is threaded onto the external thread. A first bearing is fixedly installed at the bottom of the internal threaded sleeve 6. The two vertical guide rods 601 are symmetrically fixedly connected to the inner side of the inner ring of the first bearing. The bottom ends of the two vertical guide rods 601 are fixedly connected to the top of the base plate 101. The circular box 1 is slidably sleeved on the two vertical guide rods 601. Multiple handles are fixedly connected to the outside of the internal threaded sleeve 6 in a ring with equal spacing.

[0054] In this embodiment, the top of the round box 1 has two vertical guide holes that are respectively slidably fitted onto the outer side of the corresponding vertical guide rod 601, so as to allow the vertical guide rod 601 to pass through and guide its vertical sliding.

[0055] In this embodiment, the internal threaded sleeve 6, multiple handles, and two vertical guide rods 601 work together. Rotating the multiple handles in the opposite direction drives the internal threaded sleeve 6 to rotate in the opposite direction. The internal threaded sleeve 6 rotates on the external thread of the circular tube 2 and moves downward. Utilizing the first bearing, based on the principle that the bearing does not transmit rotational torque to the inner ring when the outer ring rotates, the rotational torque of the internal threaded sleeve 6 is prevented from being transmitted to the vertical guide rods 601 when it rotates. At this time, when the internal threaded sleeve 6 rotates downward, it drives the two vertical guide rods 601 to move downward through the first bearing. The downward movement of the two vertical guide rods 601 drives the base plate 101 to move downward, thus unsealing the bottom of the circular box 1. This facilitates the subsequent cleaning and discharge of the dust and impurities collected by the filter. Furthermore, the downward movement of the base plate 101 drives the stainless steel filter screen 501 to move downward through the rectangular support rod 5, making it easier for personnel to clean. This facilitates the removal and cleaning of the impurities and filter components collected by the filter, providing convenience for subsequent maintenance work.

[0056] It should be noted that, regarding power supply, given that the dining chair production and processing site has various electrical equipment and complete power supply conditions, the drive motor 204 of this device can be directly connected to the mains power on site through its power cord plug. Specifically, it is powered by plugging in the power strip on site (not marked in the figure). This power supply scheme adopts the conventional plug-in power distribution method for handheld device motors, which is a conventional and mature known technology in this field, and will not be elaborated here.

[0057] This embodiment can sand and deburr the wooden boards of dining chairs, and simultaneously extract, filter, and collect the dust generated at the sanding location. This reduces the phenomenon of large amounts of dust directly drifting outwards, polluting the on-site environment, and harming people's health, thus improving the environmental friendliness of sanding and deburring the wooden boards of dining chairs. Furthermore, it eliminates the need for a separate electric vacuum cleaner, improving environmental protection while also achieving good energy-saving effects. Additionally, the collected impurities and filter components can be removed and cleaned by simple rotation, providing convenience for subsequent maintenance work.

[0058] The usage method of this embodiment is as follows: When using the dining chair burr removal device, the two handles 202 are set one on the right and one in front, which makes it convenient for the person to move the device with both hands. When sanding and removing burrs from the dining chair wood, the drive motor 204 drives the rotating shaft 3 to rotate. Taking advantage of the characteristic of the square part having the edge-fitting and locking characteristics, when the rotating shaft 3 rotates, the square rotating rod 302 is driven to rotate as a whole through the edge-locking of the square sliding groove. The square rotating rod 302 drives the sanding disc 4 to rotate to sand and remove burrs from the surface of the dining chair wood, thus achieving the effect of sanding and removing burrs from the dining chair wood.

[0059] When the rotating shaft 3 rotates, it also drives the centrifugal impeller 301 to rotate. When the centrifugal impeller 301 rotates, it draws air into the round box 1 through four air inlets 205 and stainless steel filter screen 501. The round box 1 draws the dust and gas generated at the grinding position into the round box 1 by multiple L-shaped dust suction pipes 102 surrounding the grinding disc 4. The breathable dust filter cloth on the four stainless steel filter screens 501 filters and collects the dust in the round box 1. The gas is drawn into the round pipe 2 through the four air inlets 205 and discharged upward through multiple air outlets 201. This achieves the effect of suction, filtration and collection of dust generated at the grinding position when the grinding disc 4 is driven to rotate for grinding and deburring. This reduces the phenomenon of large amounts of dust directly drifting outward, polluting the on-site environment and harming people's health. It improves the environmental protection of grinding and deburring wood for dining chairs. Moreover, it does not require a separate electric dust collection device, which improves the environmental protection effect and has a good energy saving effect.

[0060] When cleaning the collected dust and impurities after use, rotating multiple handles in the reverse direction causes the internal threaded sleeve 6 to rotate in the reverse direction. The internal threaded sleeve 6 rotates on the external thread of the round tube 2 and moves downward. Utilizing the first bearing, and based on the principle that the bearing does not transmit rotational torque to the inner ring when the outer ring rotates, the rotational torque of the internal threaded sleeve 6 is prevented from being transmitted to the vertical guide rod 601. At this time, when the internal threaded sleeve 6 rotates and moves downward, it drives the two vertical guide rods 601 to move downward through the first bearing. The downward movement of the two vertical guide rods 601 drives the base plate 101 to move downward, thus unsealing the bottom of the round box 1. This allows for the subsequent cleaning and discharge of the collected dust and impurities. Furthermore, the downward movement of the base plate 101 drives the stainless steel filter screen 501 to move downward through the rectangular support rod 5 for personnel to clean. This facilitates the removal and cleaning of the collected impurities and filter components, providing convenience for subsequent maintenance work.

[0061] Example 2

[0062] Reference Figure 3 As shown, this embodiment differs from Embodiment 1 in that: the stainless steel filter screen 501 is detachably connected to the top of the corresponding rectangular support rod 5, the bottom of the stainless steel filter screen 501 is fixedly connected to a rectangular sleeve 502, and the top of the rectangular support rod 5 is movably fitted into the corresponding rectangular sleeve 502.

[0063] This embodiment allows for easy and quick disassembly and replacement of the stainless steel filter screen 501 by simple plugging and unplugging after it is moved downwards, improving the flexibility of use and the convenience of subsequent filter replacement.

[0064] The method of use in this embodiment is as follows: The difference from the first embodiment is that it also has the following functions: By using the rectangular sleeve 502 to cooperate with the rectangular support rod 5, the stainless steel filter screen 501 can be easily and movablely clipped onto the top of the rectangular support rod 5. With the clip-on support method, after the stainless steel filter screen 501 is moved downward, it is convenient for personnel to easily and quickly disassemble and replace the stainless steel filter screen 501 by simple plugging and unplugging, which improves the flexibility of use and the convenience of subsequent filter replacement.

[0065] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dining chair burr removing device comprising a round box (1), characterized in that: include: A round box (1) with an open bottom that is sealed and in active contact with a base plate (101); The bottom end of the round tube (2) is set as a sealing structure and is embedded and fixed on the top of the round box (1). The bottom end of the round tube (2) is provided with four air inlets (205) at equal intervals in an annular shape, and the top of the outer side of the round tube (2) is provided with multiple air outlets (201) in an annular shape. Handle lever (202), which consists of two sets and is fixedly connected to the right and front sides of the round tube (2) respectively; The grinding disc (4) is located below the base plate (101); The L-shaped suction pipe (102) is a series of pipes that are installed and fixed in a ring at equal intervals on the top of the base plate (101) and surround the grinding disc (4). The bottom end of the L-shaped suction pipe (102) is connected to a suction cover located below the base plate (101). The telescopic rotary drive generates a suction component, which is rotatably embedded in the bottom of the base plate (101) and located inside the round tube (2), and is fixedly connected to the top of the grinding disc (4); The top plate (203) is fixedly connected to the top of the round tube (2) by four screws, and the top of the plate is fixedly installed with a drive motor (204) whose output shaft is fixedly connected to the top of the telescopic rotary drive suction assembly; The threaded lifting vertical guide drive assembly is threaded on the outside of the round tube (2) and fixedly connected to the top of the base plate (101); Rectangular support rods (5) are in four groups and are fixedly connected to the top of the base plate (101) in a ring at equal intervals; The stainless steel filter screen (501) consists of four sets, which are connected to the top of the corresponding rectangular support rod (5) and are in contact with the bottom of the round tube (2) and are adapted to the corresponding air inlet (205).

2. A bistro chair burr removal device according to claim 1, wherein: The stainless steel filter screen (501) is fixedly connected to the top of the corresponding rectangular support rod (5) by welding.

3. A dining chair burr removal device according to claim 1, characterized in that: The stainless steel filter screen (501) is detachably connected to the top of the corresponding rectangular support rod (5).

4. A bistro chair burr removal device according to claim 3, wherein: The bottom of the stainless steel filter screen (501) is fixedly connected to a rectangular sleeve (502), and the top of the rectangular support rod (5) is movably fitted into the corresponding rectangular sleeve (502).

5. The burr removal device for dining chairs according to claim 1, characterized in that: The telescopic rotary drive suction assembly includes a square rotating rod (302), a rotating shaft (3), and a centrifugal impeller (301). The square rotating rod (302) is rotatably embedded in the bottom of the base plate (101). The grinding disc (4) is fixedly connected to the bottom of the square rotating rod (302). The rotating shaft (3) is located inside the round tube (2) and is fixedly connected to the bottom end of the output shaft of the drive motor (204). The bottom end of the rotating shaft (3) is provided with a square sliding groove that slides and fits with the outside of the square rotating rod (302). The centrifugal impeller (301) is located inside the round tube (2) and is fixedly sleeved on the rotating shaft (3).

6. The burr removal device for dining chairs according to claim 1, characterized in that: The threaded lifting vertical guide drive assembly includes an internal threaded sleeve (6), multiple handles and two vertical guide rods (601). The lower outer side of the round tube (2) is provided with an external thread. The internal threaded sleeve (6) is threaded onto the external thread. A first bearing is fixedly installed at the bottom of the internal threaded sleeve (6). The two vertical guide rods (601) are symmetrically fixedly connected to the inner ring of the first bearing. The bottom ends of the two vertical guide rods (601) are fixedly connected to the top of the base plate (101). The round box (1) is slidably sleeved on the two vertical guide rods (601). Multiple handles are fixedly connected in a ring at equal intervals to the outside of the internal threaded sleeve (6).

7. The burr removal device for dining chairs according to claim 5, characterized in that: The bottom end of the circular tube (2) is provided with a circular through hole that is in contact with the outside of the rotating shaft (3).

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