CN115741299A - Panel sand light device for furniture production - Google Patents

Abstract

The invention relates to the technical field of furniture production, in particular to a plate sanding device for furniture production, which comprises a shell and two cross rods, wherein a working cavity is formed in the shell, openings communicated with the working cavity are formed in the outer walls of two sides of the shell, the two cross rods penetrate through the two openings and are fixedly connected with the contact parts of the two cross rods, movable clamping components are arranged on the two cross rods and are used for clamping and moving plates, sanding components are symmetrically arranged on the upper side and the lower side in the working cavity, each sanding component comprises a horizontally arranged mounting plate, supporting plates are symmetrically welded on two sides of one side, close to the cross rods, of the mounting plate, and a sanding roller is movably arranged between the two supporting plates.

Description

A board sanding device for furniture production

technical field

The invention relates to the technical field of furniture production, in particular to a plate sanding device for furniture production.

Background technique

With the continuous update of production technology, the continuous increase of varieties, the gradual formation of specialized production and the continuous improvement of management level, the wooden furniture industry has also achieved rapid development. In the processing of wooden furniture panels, it is necessary to use panel sand The light equipment is frosted to make the surface smooth and even, and the thickness is uniform.

For example, the patent application number CN202010755114.2 includes a bottom box, a sanding assembly arranged on the upper left side of the bottom box, and a top support assembly arranged on the upper right side of the bottom box. The inside of the bottom box is from left to There are at least three sets of supporting components for supporting the board body on the right side, and a driving component for driving the supporting components to reciprocate along the length direction of the bottom box is also arranged inside the bottom box.

Although the above-mentioned patent can set at least three sets of supporting components and supporting components, the board body can be automatically turned over after sanding the upper part of the board body, and the turned-over board body can be transported to the sander again with the driving component. Sanding is carried out inside the light component, so as to carry out sanding treatment on both sides of the board body, but when the board is sanded, two treatments are required to complete the sanding on both sides, which increases the time spent on sanding and affects the sanding work efficiency.

Contents of the invention

The object of the present invention is to provide a plate sanding device for furniture production, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A board sanding device for furniture production, comprising a shell and two cross bars, the inside of the shell is provided with a working chamber, the outer walls of both sides of the shell are provided with openings communicating with the working chamber, the two The crossbar passes through the two openings and is fixedly connected with its contact part. The two crossbars are provided with movable clamping components for clamping and moving the plate. The upper and lower sides of the working chamber are symmetrical A sanding assembly is provided, and the sanding assembly includes a horizontally arranged mounting plate, and support plates are welded symmetrically on both sides of the mounting plate close to the cross bar, and sanding rollers are movable between the two support plates , and a U-shaped dust-absorbing plate is arranged on the outside of the sanding roller between the two support plates, the bottom of the U-shaped dust-absorbing plate is fixedly connected with the mounting plate, and the U-shaped dust-absorbing plate is close to the side of the sanding roller One side of the inner wall is provided with a cleaning component for cleaning the sheet debris attached to the outer wall of the sanding roller. The two ends of the U-shaped dust suction board are provided with suction ports inside, and the end faces of the two suction ports are set as Bevel and face the sanding roller.

As a preferred solution of the present invention, the clamping assembly includes a moving groove with an inner wall of a cross bar, a screw rod is movable in the moving groove, a moving block is sleeved on the screw rod, and the inner wall of the cross bar is located at The moving groove is provided with a fixed block, the fixed block is connected to the inner wall of the cross bar, and the moving block is welded to the fixed block, and a hydraulic cylinder is embedded inside the fixed block away from the moving block. The telescopic end is connected with a strip-shaped splint, and one end of the two cross bars is fixedly installed with a rotating motor, and the output ends of the two rotating motors are fixedly connected with the screw rod.

As a preferred solution of the present invention, brush plates are installed at the two openings through bolts, both sides of the two brush plates are in contact with the inner wall of the cross bar, and the bottoms of the two ends of the two cross bars are welded with Place the board.

As a preferred solution of the present invention, a cavity is provided inside one of the support plates, a connecting shaft is fixed at both ends of the sanding roller, and one of the connecting shafts extends through the support plate into the cavity and its outer wall is fixed A driven wheel is provided, and the other connecting shaft is movably connected with the other support plate, and a driving wheel is provided under the driven wheel, and the driving wheel is fixedly sleeved on the output end of the driving motor, and the driving motor passes through Installed on the bottom plate of the U-shaped dust-absorbing board, the driving wheel and the driven wheel are connected through an engaged transmission belt, and the length of the sanding roller is less than the distance between the two cross bars.

As a preferred solution of the present invention, a first telescopic cylinder is provided at the center of the side of the mounting plate away from the sanding roller, the first telescopic cylinder is fixedly connected to the inner wall of the working chamber, and the telescopic end of the first telescopic cylinder is connected to the inner wall of the working chamber. The mounting boards are fixedly connected, and a distance sensor is embedded in the upper surface of one of the supporting boards.

As a preferred solution of the present invention, a dust collection chamber is provided inside the housing below the working chamber, a dust suction pump is installed in the dust collection chamber, and a suction main pipe is connected to the suction port of the dust suction pump. The dust suction main pipe is located in the shell wall of the shell, and the bottom of the dust suction port of the two U-shaped dust suction plates is provided with a connected dust suction branch pipe, and each of the dust suction branch pipes passes through the installation plate and communicates with the dust suction main pipe .

As a preferred solution of the present invention, the cleaning assembly includes a slide rail welded on the inner wall of one side of the two U-shaped dust collection boards, and two cleaning boards are slidably installed on the two sliding rails, and the two cleaning boards are close to the sand One side of the light roller is provided with a brush, and the two cleaning plates are fixedly connected by a connecting rod. The side wall of the housing is fixedly equipped with a second telescopic cylinder, and the telescopic end of the second telescopic cylinder is connected to the connecting rod. Fixed connection.

As a preferred solution of the present invention, the bottom plate and the mounting plate of one of the U-shaped dust collection plates are provided with a guide hole connected to each other, and the bottom plate of the U-shaped dust suction plate is located on the side of the guide hole and is set as a slant plate, and the guide hole The bottom is connected to a dust collection chamber through a telescopic hose.

As a preferred solution of the present invention, the inner walls on both sides of the working chamber are located at the two mounting plates and are provided with limiting grooves, each of the limiting grooves is vertically equipped with a guide rod, and the two mounting plates of the two mounting plates Both ends are inserted into the limit groove and sleeved on the guide rod.

As a preferred solution of the present invention, springs are provided at both ends of the two mounting plates on one side of the sanding roller, each of the springs is sleeved on the guide rod, and the two ends of each of the springs are respectively connected to the The inner wall of the limiting groove is fixedly connected with the outer wall of the mounting plate.

Compared with the prior art, the beneficial effect of the present invention is: in view of the problems raised by the background technology, the present application can realize the synchronous processing of both sides when sanding the plate, without the need of flipping operation, and reduce the consumption of power sanding It can improve the working efficiency of sanding, and at the same time, it can collect the debris generated during sanding, reduce the possibility of it floating out of the shell and pollute the surrounding air, and improve the safety of the staff;

Put the plate on the placing plate in the clamping assembly, at this time, the hydraulic cylinder works to drive the splint to approach the two side walls of the plate until it is clamped and fixed, and then the rotating motor drives the screw to rotate, and the rotating screw drives the moving block along the moving groove To move, the moving block drives the plate through the opening to move into the working chamber through the fixed block and the splint. At the same time, the driving motor in the sanding assembly drives the driving wheel to rotate, and the rotating driving wheel drives the driven wheel to rotate through the transmission belt. The rotating driven wheel is connected through the The shaft drives the sanding roller to rotate, and the moving plate passes through two sanding rollers, and the two rotating sanding rollers perform sanding treatment on both sides. At this time, the debris generated by the treatment will be scattered in the working chamber. The suction force generated by the work acts on the dust suction ports at both ends of the U-shaped dust suction plate through the dust suction main pipe and the dust suction branch pipe, and absorbs the debris generated during the sanding of the sanding roller and discharges it into the dust collection chamber to achieve double-sided cleaning. The debris is collected while sanding. At the same time, in order to prevent the debris from adhering to the sanding roller and affecting the subsequent sanding effect, you can start the second telescopic cylinder in the cleaning component to push the connecting rod to move after the plate is sanded. Drive the two cleaning plates to move along the slide rails, so that the brushes are in contact with the outer wall of the sanding roller to clean up the attached debris. The debris cleaned by the upper sanding component falls under the action of gravity, and when passing through the suction port After being sucked in, the debris cleaned by the lower sanding assembly falls to the inclined plate under the action of gravity, and enters the dust collection chamber through the guide hole and the telescopic hose, so as to ensure the sanding effect of the sanding roller.

Description of drawings

Fig. 1 is a perspective view of the overall structure of the present invention;

Fig. 2 is the enlarged view of place A of the present invention;

Fig. 3 is the overall sectional structure drawing of the present invention;

Fig. 4 is a schematic diagram of the sanding assembly of the present invention;

Fig. 5 is a schematic diagram of a U-shaped dust-absorbing board;

Figure 6 is a schematic cross-sectional view of the support plate;

Figure 7 is a schematic diagram of the connection of the dust suction main pipe.

In the figure: 1, shell; 101, working cavity; 1011, opening; 1012, brush plate; 2, clamping assembly; 201, moving groove; 2011, screw rod; 2012, rotating motor; Fixed block; 203, hydraulic cylinder; 204, splint; 205, placement plate; 3, sanding assembly; 301, installation plate; 3021, distance sensor; 302, support plate; 3022, cavity; 303, sanding roller; 3031 , connecting shaft; 3032, driven wheel; 304, U-shaped dust suction plate; 3041, dust suction port; 305, driving motor; 3051, driving wheel; 306, transmission belt; 307, first telescopic cylinder; 401, dust suction pump; 402, dust suction main pipe; 403, dust suction branch pipe; 5, cleaning component; 501, slide rail; 502, cleaning plate; 5021, brush; 503, connecting rod; 504, second telescopic cylinder; 6, limit groove; 601, guide rod; 602, spring; 7, cross bar; 8, inclined plate; 801, guide hole; 802, telescopic hose.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the present invention Embodiments, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the scope of protection of the present invention.

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several examples of the invention are given. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

All electrical components in the device are controlled through a control panel arranged on the outer wall of the housing 1 .

Referring to Figures 1-7, the present invention provides a technical solution:

A board sanding device for furniture production, comprising a housing 1 and two cross bars 7, a working chamber 101 is provided inside the housing 1, and openings 1011 communicating with the working chamber 101 are provided on both outer walls of the housing 1, The two cross bars 7 pass through the two openings 1011 and are fixedly connected with the contact parts. The two openings 1011 are equipped with brush plates 1012 through bolts. Both sides of the two brush plates 1012 are in contact with the inner wall of the cross bar 7. Placement plates 205 are welded to the bottoms of both ends of the crossbar 7, and movable clamping assemblies 2 are provided on the two crossbars 7 for clamping and moving the plates. The upper and lower sides of the working chamber 101 are symmetrically arranged The sanding assembly 3, the sanding assembly 3 includes a horizontally arranged mounting plate 301, the inner walls of the two sides of the working chamber 101 are located at the two mounting plates 301 and are provided with limiting grooves 6, and each limiting groove 6 is vertically installed with a guide Rod 601, the two ends of two mounting plates 301 are all inserted in the limit groove 6 and sleeved on the guide rod 601, and the two mounting plates 301 are located on one side of the sanding roller 303 and both ends are provided with springs 602, each spring 602 are all sleeved on the guide rod 601, and the two ends of each spring 602 are respectively fixedly connected with the inner wall of the limiting groove 6 and the outer wall of the mounting plate 301, and the side of the mounting plate 301 close to the cross bar 7 is symmetrically welded with supporting plates 302 on both sides. A sanding roller 303 is movable between the two supporting plates 302, and a U-shaped dust-absorbing plate 304 is arranged on the outside of the sanding roller 303 between the two supporting plates 302, and the bottom of the U-shaped dust-absorbing plate 304 and the installation The plates 301 are fixedly connected, a supporting plate 302 is provided with a cavity 3022 inside, and the two ends of the sanding roller 303 are fixed with a connecting shaft 3031, and a connecting shaft 3031 extends through the supporting plate 302 into the cavity 3022 and its outer wall is fixedly sleeved. There is a driven wheel 3032, another connecting shaft 3031 is movably connected with another support plate 302, and a driving wheel 3051 is arranged under the driven wheel 3032, and the driving wheel 3051 is fixedly set on the output end of the driving motor 305, and the driving motor 305 is installed On the bottom plate of the U-shaped dust-absorbing plate 304, the driving wheel 3051 and the driven wheel 3032 are connected by an engaged transmission belt 306, the length of the sanding roller 303 is less than the distance between the two cross bars 7, and the mounting plate 301 is away from the sander. The center of one side of the smooth roller 303 is provided with a first telescopic cylinder 307, the first telescopic cylinder 307 is fixedly connected to the inner wall of the working chamber 101, and the telescopic end of the first telescopic cylinder 307 is fixedly connected to the mounting plate 301, and the lower sanding assembly 3 A distance sensor 3021 is embedded in the upper surface of the support plate 302 without the cavity 3022. The model of the distance sensor 3021 is HC-SR04, which is used to detect the distance between two sanding components 3, and is convenient to adapt to plates of different thicknesses. Both ends of the U-shaped dust suction plate 304 are provided with dust suction ports 3041, and the end faces of the two dust suction ports 3041 are sloped and face the sanding roller 303. The inside of the housing 1 is located below the working chamber 101 and has a dust collection chamber 4. , a dust suction pump 401 is installed in the dust collection chamber 4, the suction port of the dust suction pump 401 is connected with a dust suction main pipe 402, the dust suction main pipe 402 is located in the shell wall of the housing 1, and the suction of the two U-shaped dust suction plates 304 The bottom of the dust port 3041 is provided with connected dust suction branch pipes 403 , and each dust suction branch pipe 403 passes through the mounting plate 301 and communicates with the dust suction main pipe 402 .

In the production of wooden furniture, it is necessary to use sanding equipment to sand the boards. The staff will energize the device of the present application through an external power supply, and start the first expansion and contraction of the two sanding components 3 through the control panel according to the thickness of the boards to be processed. Cylinder 307, the two first telescopic cylinders 307 work to push or pull the mounting plate 301 to move, the two ends of the mounting plate 301 move along the guide rod 601 in the limit groove 6 and squeeze or stretch the spring 602, the spring 602 can It has a certain cushioning property. At this time, the distance sensor 3021 measures the distance between the two sanding assemblies 3. When the distance between the two sanding assemblies 3 is the same as the input thickness, the control panel stops the first telescopic cylinder 307 from working, so that it can adapt to the distance smaller than the height of the opening 1011. Plates of different thicknesses improve adaptability, and the plate to be processed is clamped by the clamping assembly 2 and moved into the working chamber 101 through the opening 1011. At the same time, the driving motor 305 in the sanding assembly 3 drives the active The wheel 3051 rotates, the rotating driving wheel 3051 drives the driven wheel 3032 to rotate through the transmission belt 306, the rotating driven wheel 3032 drives the sanding roller 303 to rotate through the connecting shaft 3031, the moving plate passes through the two sanding rollers 303, and is driven by two rotating The sanding roller 303 performs sanding treatment on both sides to achieve simultaneous processing on both sides without turning over, reducing the time spent on force sanding and improving the efficiency of sanding. At this time, the debris generated by the treatment will be scattered in the working In the cavity 101, the dust suction pump 401 works while the drive motor 305 is working, and the suction force it produces acts on the dust suction ports 3041 at both ends of the U-shaped dust suction plate 304 through the dust suction main pipe 402 and the dust suction branch pipe 403, and the sand The chips produced when the smooth roller 303 is sanded are absorbed and discharged into the dust collection chamber 4 .

For the embodiment, please refer to Fig. 1 and Fig. 2, the clamping assembly 2 includes a moving groove 201 provided with the inner wall of the cross bar 7, a screw rod 2011 is movable in the moving groove 201, and a moving block 2013 is set on the screw rod 2011. The inner wall of the rod 7 is located at the moving groove 201 and is provided with a fixed block 202. The fixed block 202 is connected to the inner wall of the cross bar 7. The moving block 2013 is welded to the fixed block 202. The side of the fixed block 202 away from the moving block 2013 is embedded with a hydraulic cylinder. 203, the telescopic end of the hydraulic cylinder 203 is connected with a strip-shaped splint 204, and one end of the two cross bars 7 is fixedly equipped with a rotating motor 2012, and the output ends of the two rotating motors 2012 are fixedly connected with the screw mandrel 2011.

When clamping the plate, the staff puts the plate on the placement plate 205. At this time, the hydraulic cylinder 203 is activated through the control panel to drive the splint 204 to approach the two side walls of the plate until it is clamped and fixed, and then the rotating motor 2012 works to drive the screw rod 2011 Rotate, the rotating screw rod 2011 drives the moving block 2013 to move along the moving groove 201, the moving block 2013 drives the plate through the fixed block 202 and the splint 204 to move into the working chamber 101 through the opening 1011 for sanding treatment, and then through another opening 1011 The board after sanding is moved out of the working chamber 101, thereby avoiding deviation of the board when passing through the sanding roller 303, and clamping and fixing boards of different widths.

For the embodiment, please refer to FIG. 3 and FIG. 5 , the inner wall of the U-shaped dust suction plate 304 close to the sanding roller 303 is provided with a cleaning assembly 5 for cleaning the board debris attached to the outer wall of the sanding roller 303 , the cleaning assembly 5 It includes a slide rail 501 welded on the inner wall of two U-shaped dust collection boards 304, a cleaning board 502 is slidably installed on the two slide rails 501, and a brush 5021 is provided on the side of the two cleaning boards 502 close to the sanding roller 303 , and the two cleaning plates 502 are fixedly connected through the connecting rod 503, the side wall of the housing 1 is fixedly installed with the second telescopic cylinder 504, the telescopic end of the second telescopic cylinder 504 is fixedly connected with the connecting rod 503, the U-shaped suction below The bottom plate of the dust plate 304 and the mounting plate 301 are provided with a guide hole 801 connected to each other. The bottom plate of the U-shaped dust collection plate 304 is located on the side of the guide hole 801 and is set as a slant plate 8. Cavity 4.

In order to prevent debris from adhering to the sanding roller 303 and affecting the subsequent sanding effect, the second telescopic cylinder 504 in the cleaning assembly 5 can be activated through the control panel after the plate is sanded to push the connecting rod 503 to move, and the connecting rod 503 drives two The cleaning plate 502 moves along the slide rail 501, so that the hair brush 5021 contacts the outer wall of the sanding roller 303 to clean up the attached debris, and the debris cleaned by the sanding assembly 3 above falls under the action of gravity and passes through the suction. When the dust port 3041 is sucked in, the debris cleaned by the lower sanding assembly 3 falls to the inclined plate 8 under the action of gravity, and enters the dust collection chamber 4 through the guide hole 801 and the telescopic hose 802, thereby ensuring the smoothing of the sanding roller 303. Sanding effect.

The working process of the present invention: in the production of wooden furniture, it is necessary to use sanding equipment to perform sanding treatment on the board, and the staff will energize the device of this application through an external power supply, and start two sanding components through the control panel according to the thickness of the board to be processed 3, the first telescopic cylinder 307, the two first telescopic cylinders 307 work to push or pull the mounting plate 301 to move, and the two ends of the mounting plate 301 move along the guide rod 601 in the limit groove 6 and squeeze or pull the spring 602 The spring 602 can have a certain cushioning property. At this time, the distance sensor 3021 measures the distance between the two sanding assemblies 3. When the distance between the two sanding assemblies 3 is the same as the input thickness, the control panel stops the first telescopic cylinder 307 from working, and the staff will The plate is placed on the placement plate 205, at this time, the hydraulic cylinder 203 is activated through the control panel to drive the splint 204 to approach the two side walls of the plate until it is clamped and fixed, and then the rotating motor 2012 works to drive the screw rod 2011 to rotate, and the rotating screw rod 2011 drives the movement The block 2013 moves along the moving groove 201, and the moving block 2013 drives the plate through the fixed block 202 and the splint 204 to move into the working chamber 101 through the opening 1011 for sanding treatment. The work drives the driving wheel 3051 to rotate, and the rotating driving wheel 3051 drives the driven wheel 3032 to rotate through the transmission belt 306, and the rotating driven wheel 3032 drives the sanding roller 303 to rotate through the connecting shaft 3031, and the moving plate passes through two sanding rollers 303, and is formed by two A rotating sanding roller 303 carries out sanding treatment on its two sides, realizes the synchronous treatment of both sides, does not need to carry out flipping operation, reduces the time spent on force sanding, improves the work efficiency of sanding, at this moment processing debris will be Floating in the working chamber 101, the dust suction pump 401 works while the drive motor 305 is working, and the suction generated by it acts on the dust suction ports 3041 at both ends of the U-shaped dust suction plate 304 through the dust suction main pipe 402 and the dust suction branch pipe 403 , to absorb the debris generated by the sanding roller 303 during sanding and discharge it into the dust collection chamber 4, and then move the processed plate out of the working chamber 101 through another opening 1011, and finally start it through the control panel after the plate is sanded. The second telescopic cylinder 504 in the cleaning assembly 5 pushes the connecting rod 503 to move, and the connecting rod 503 drives the two cleaning plates 502 to move along the slide rail 501, so that the hair brush 5021 contacts the outer wall of the sanding roller 303, and removes the attached debris. Clean up, the debris cleaned by the sanding assembly 3 above falls under the action of gravity, and is sucked through the dust suction port 3041, and the debris cleaned by the sanding assembly 3 below falls on the inclined plate 8 under the action of gravity, and passes through the suction port 3041. The guide hole 801 and the flexible hose 802 enter the dust collecting chamber 4 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A plate sanding device for furniture production, comprising a shell (1) and two cross bars (7), characterized in that: a working chamber (101) is opened inside the shell (1), and the The two outer walls of the housing (1) are provided with openings (1011) communicating with the working chamber (101). The crossbar (7) is provided with a movable clamping assembly (2) for clamping and moving the plate, and the upper and lower sides of the working chamber (101) are symmetrically provided with sanding assemblies (3) , the sanding assembly (3) includes a horizontally arranged mounting plate (301), the side of the mounting plate (301) close to the crossbar (7) is symmetrically welded with support plates (302) on both sides, and the two support plates Sanding rollers (303) are movable between the plates (302), and a U-shaped dust-absorbing plate (304) is arranged outside the sanding rollers (303) between the two support plates (302). The bottom of the U-shaped dust-absorbing board (304) is fixedly connected with the installation board (301), and the inner wall of the U-shaped dust-absorbing board (304) near the sanding roller (303) is provided with a cleaning assembly (5) for cleaning The debris attached to the outer wall of the sanding roller (303) is cleaned. The two ends of the U-shaped dust suction plate (304) are provided with suction ports (3041), and the end faces of the two suction ports (3041) are Set on bevel and face the sanding roller (303). 2. The board sanding device for furniture production according to claim 1, characterized in that: the clamping assembly (2) includes a moving groove (201) with an inner wall of a cross bar (7), and the moving A screw rod (2011) is movable in the groove (201), a moving block (2013) is set on the screw rod (2011), and a fixed block is arranged on the inner wall of the cross bar (7) at the moving groove (201) (202), where the fixed block (202) meets the inner wall of the cross bar (7), the moving block (2013) is welded to the fixed block (202), and the fixed block (202) is far away from the moving block (2013 ) is embedded with a hydraulic cylinder (203), the telescopic end of the hydraulic cylinder (203) is connected with a strip-shaped splint (204), and one end of the two cross bars (7) is fixedly installed with a rotating motor (2012), the output ends of the two rotating motors (2012) are fixedly connected to the screw rod (2011). 3. A board sanding device for furniture production according to claim 1, characterized in that: brush plates (1012) are installed at the two openings (1011) through bolts, and the two brush plates ( Both sides of 1012) are in contact with the inner wall of the crossbar (7), and the bottoms of both ends of the two crossbars (7) are welded with placement plates (205). 4. The board sanding device for furniture production according to claim 1, characterized in that: a cavity (3022) is opened inside one of the support plates (302), and two of the sanding rollers (303) A connection shaft (3031) is fixed at one end, one of the connection shafts (3031) extends through the support plate (302) into the cavity (3022) and its outer wall is fixedly sleeved with a driven wheel (3032), and the other connection shaft (3031) The shaft (3031) is movably connected with another support plate (302), and the driving wheel (3051) is provided under the driven wheel (3032), and the driving wheel (3051) is fixedly sleeved on the output of the driving motor (305) On the end, the driving motor (305) is installed on the bottom plate of the U-shaped dust collection plate (304), and the driving wheel (3051) and the driven wheel (3032) are connected through the meshing transmission belt (306). The length of the sanding roller (303) is less than the distance between the two cross bars (7). 5. A board sanding device for furniture production according to claim 1, characterized in that: a first telescopic cylinder (307) is provided at the center of the side of the installation plate (301) away from the sanding roller (303) , the first telescopic cylinder (307) is fixedly connected to the inner wall of the working chamber (101), and the telescopic end of the first telescopic cylinder (307) is fixedly connected to the mounting plate (301), and one support plate (302) A distance sensor (3021) is embedded in the upper surface of the upper surface. 6. The board sanding device for furniture production according to claim 1, characterized in that: a dust collection chamber (4) is provided inside the housing (1) below the working chamber (101), and the dust collection chamber (4) is A dust suction pump (401) is installed in the dust chamber (4), and the suction port of the dust suction pump (401) is connected with a dust suction main pipe (402), and the dust suction main pipe (402) is located at the In the shell wall, the bottoms of the suction ports (3041) of the two U-shaped suction panels (304) are provided with connected suction branch pipes (403), and each of the suction branch pipes (403) passes through the mounting plate (301) communicates with the dust suction main pipe (402). 7. The board sanding device for furniture production according to claim 1, characterized in that: the cleaning component (5) includes a slide rail welded on the inner wall of one side of two U-shaped dust-absorbing boards (304) (501), a cleaning plate (502) is slidably installed on the two slide rails (501), and a brush (5021) is provided on the side of the two cleaning plates (502) close to the sanding roller (303), and The two cleaning plates (502) are fixedly connected by a connecting rod (503), and the side wall of the housing (1) is fixedly installed with a second telescopic cylinder (504), and the second telescopic cylinder (504) The telescopic end is fixedly connected with the connecting rod (503). 8. A board sanding device for furniture production according to claim 1, characterized in that: the bottom plate and the mounting plate (301) of one of the U-shaped dust-absorbing boards (304) are provided with communicating guide holes (801 ), the bottom plate of the U-shaped dust collection plate (304) is located on the side of the guide hole (801) and is set as a slant plate (8), and the bottom of the guide hole (801) is connected to a dust collection chamber through a telescopic hose (802) (4). 9. The board sanding device for furniture production according to claim 1, characterized in that: the inner walls on both sides of the working chamber (101) are located at the two mounting plates (301) and both have limited slots (6) , a guide rod (601) is installed vertically in each limiting groove (6), and both ends of the two mounting plates (301) are inserted into the limiting groove (6) and sleeved on the guide rod (601) on. 10. A board sanding device for furniture production according to claim 9, characterized in that: two mounting plates (301) are located on one side of the sanding roller (303) and both ends are provided with springs (602) , each of the springs (602) is sleeved on the guide rod (601), and the two ends of each of the springs (602) are respectively fixedly connected with the inner wall of the limiting groove (6) and the outer wall of the mounting plate (301) .

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