Automatic polishing device for fiberboard processing

Abstract

An automatic polishing device for fiberboard processing comprises a machine box, U-shaped supports are fixedly connected to the front side and the rear side of the outer wall of the upper side of the machine box correspondingly, through grooves are formed in the U-shaped supports, moving blocks are slidably connected into the through grooves, and a first driving motor is installed on the outer wall of one side of one U-shaped support; and the output shaft end of the first driving motor extends into the through groove and is fixedly connected with a first screw rod. Compared with the prior art, the automatic liquid adding device has the advantages that polishing liquid can be automatically added in the polishing process through the arranged automatic liquid adding assembly, the liquid adding work can be completed without manual intervention, the working efficiency is greatly improved, the liquid adding speed can be controlled by adjusting the rotating speed of the speed adjusting motor, and the automatic liquid adding device is more practical and convenient to use. And through the arranged dust removal assembly, dust generated in the polishing process can be sucked into the box body, and the situation that the body health of workers is harmed due to dust flying is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fiberboard processing, in particular to an automatic polishing device for fiberboard processing. Background Art

[0002] Ceramic fiberboard generally refers to aluminum silicate fiberboard. Aluminum silicate fiberboard is processed by wet vacuum forming process. The strength of this type of product is higher than fiber blanket and vacuum forming felt, and it is suitable for high temperature fields that require rigid strength of the product.

[0003] Ceramic fiberboard needs to be polished during processing. Currently, workers manually add polishing liquid during polishing, which is not only inefficient but also dangerous. In addition, a large amount of dust will be generated during polishing, which will affect human health after being inhaled. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides an automatic polishing device for fiberboard processing to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned utility model object, the technical solution adopted by the utility model is an automatic polishing device for fiberboard processing, including a chassis, a U-shaped bracket is fixedly connected to the front and rear sides of the upper outer wall of the chassis, a through slot is provided on the U-shaped bracket, and a moving block is slidably connected in the through slot, a first driving motor is installed on one side outer wall of the U-shaped bracket, the output shaft end of the first driving motor extends into the through slot and is fixedly connected with a first screw, the other end of the first screw threadedly passes through the moving block and is rotatably connected to a side wall of the through slot away from the first driving motor, a second driving motor is installed on the rear side wall of one of the moving blocks, the output shaft end of the second driving motor is fixedly connected with a second screw, the other end of the second screw is rotatably connected to another moving block, a first driving block is provided on the threaded sleeve of the second screw, a limiting rod is fixedly connected between the two moving blocks, a second driving block is provided on the sliding sleeve of the limiting rod, a moving platform is fixedly connected between the first driving block and the second driving block, an automatic liquid adding component and a polishing component are provided on the moving platform, a positioning component is provided on the upper outer wall of the chassis, and a dust removal component is provided inside the chassis.

[0006] As an improvement: the automatic liquid adding component includes a slot, a liquid storage cylinder, a dropper, a plug, a driving rod, an action plate, a return spring, a movable plate, a speed regulating motor and a cam. A slot is opened on the movable platform, and a liquid storage cylinder is slidably arranged in the slot. The bottom end of the liquid storage cylinder is connected to the dropper, and a plug is provided inside the liquid storage cylinder. A driving rod is fixedly connected to the upper side wall of the plug, and the upper end of the driving rod extends out of the liquid storage cylinder and is fixedly connected to the action plate. A return spring is provided between the action plate and the upper outer wall of the liquid storage cylinder, and the return spring is sleeved on the driving rod. A movable plate is also slidably connected to the movable platform, and a speed regulating motor is installed on the movable plate. The output shaft end of the speed regulating motor is fixedly connected to a cam, and the cam cooperates with the action plate.

[0007] As an improvement: the positioning assembly includes a slide groove, a slider, a bidirectional screw, a handwheel and a hollow positioning plate. A slide groove is opened at the center of the upper outer wall of the chassis. Two symmetrically distributed sliders are slidably connected in the slide groove. A bidirectional screw is rotatably connected to one side wall of the slide groove. The other end of the bidirectional screw is threaded through the two sliders and extends to the outside of the chassis and is fixedly connected to a handwheel. A hollow positioning plate is fixedly connected to the upper side wall of the slider.

[0008] As an improvement: the dust removal assembly includes a box body, a dust removal filter element, a fan, a connecting hose and a connecting pipe. The box body is fixedly connected to the lower inner wall of the box body, the dust removal filter element is slidably connected to the inside of the box body, and the fan is installed on one side outer wall of the box body. The box body and the air inlet end of the fan are connected by a connecting pipe, and the box body and the hollow positioning plate are connected by a connecting hose.

[0009] As an improvement: the polishing assembly includes a cylinder, a polishing motor and a polishing wheel. The cylinder is installed on the upper side wall of the movable platform. The telescopic end of the cylinder passes through the movable platform and is fixedly connected to the polishing motor. The polishing wheel is installed on the output shaft end of the polishing motor.

[0010] As an improvement: a locking bolt is provided on the movable plate, and a connecting rod is fixedly connected between the movable plate and the liquid storage cylinder.

[0011] As an improvement: a plurality of through holes are provided on one side wall of the two hollow positioning plates close to each other.

[0012] As an improvement: an inspection door is provided on a side wall of the chassis away from the fan.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Through the automatic liquid adding component, polishing liquid can be added automatically during the polishing process, and the liquid adding work can be completed without human intervention, which greatly improves the work efficiency. The liquid adding speed can be controlled by adjusting the speed of the speed regulating motor, which is more practical. Through the dust removal component, the dust generated during the polishing process can be sucked into the box to avoid the harm of dust flying to the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an automatic polishing device for fiberboard processing according to the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a movable platform of an automatic polishing device for fiberboard processing according to the utility model;

[0017] Figure 3 This is a cross-sectional view of a liquid storage cylinder of an automatic polishing device for fiberboard processing according to the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of a positioning component of an automatic polishing device for fiberboard processing according to the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of a chassis of an automatic polishing device for fiberboard processing according to the utility model;

[0020] Figure 6 This is a schematic diagram of the dust removal filter structure of an automatic polishing device for fiberboard processing according to the utility model;

[0021] As shown in the figure:

[0022] 1. Chassis; 1.1. U-shaped bracket; 1.2. Through slot; 1.3. Moving block; 1.4. First driving motor; 1.5. First screw rod; 1.6. Second driving motor; 1.7. Second screw rod; 1.8. First driving block; 1.9. Limit rod; 1.10. Second driving block; 1.11. Moving table; 2. Automatic liquid adding component; 3. Positioning component; 4. Dust removal component; 5. Polishing component; 2.1. Notch; 2.2. Liquid storage cylinder; 2.21. Dropper; 2.22. Stopper; 2.23. Driving rod; 2. 24. Action plate; 2.25. Return spring; 2.3. Moving plate; 2.4. Speed ​​regulating motor; 2.5. Cam; 3.1. Slide; 3.2. Sliding block; 3.3. Bidirectional screw; 3.4. Handwheel; 3.5. Hollow positioning plate; 4.1. Box; 4.2. Dust filter element; 4.3. Fan; 4.4. Connecting hose; 4.5. Connecting pipe; 5.1. Cylinder; 5.2. Polishing motor; 5.3. Polishing wheel; 2.31. Locking bolt; 2.32. Connecting rod; 3.51. Through hole; 1.12. Inspection door. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both sides", "one side", "the other side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1As shown, an automatic polishing device for fiberboard processing comprises a chassis 1, and U-shaped brackets 1.1 are fixedly connected to the front and rear sides of the upper outer wall of the chassis 1 respectively, and a through slot 1.2 is provided on the U-shaped bracket 1.1, and a moving block 1.3 is slidably connected in the through slot 1.2, and a first driving motor 1.4 is installed on the outer wall of one side of the U-shaped bracket 1.1, and the output shaft end of the first driving motor 1.4 extends into the through slot 1.2 and is fixedly connected with a first screw 1.5, and the other end of the first screw 1.5 is threaded through the moving block 1.3 and is rotatably connected to a side wall of the through slot 1.2 away from the first driving motor 1.4, and a second driving motor 1.6 is installed on the rear side wall of one of the moving blocks 1.3, and a second screw 1.7 is fixedly connected to the output shaft end of the second driving motor 1.6, and the other end of the second screw 1.7 is rotatably connected to another moving block 1.3, and a first driving block 1.8 is threadedly sleeved on the second screw 1.7, and the two moving blocks 1.3 is fixedly connected with a limit rod 1.9, a second driving block 1.10 is provided on the sliding sleeve of the limit rod 1.9, a moving platform 1.11 is fixedly connected between the first driving block 1.8 and the second driving block 1.10, the output shaft of the first driving motor 1.4 can drive the first screw 1.5 to rotate, when the first screw 1.5 rotates, the moving block 1.3 can move left and right, so that the moving platform 1.11 can move left and right, the output shaft of the second driving motor 1.6 can drive the second screw 1.7 to rotate, when the second screw 1.7 rotates, the first driving block 1.8 can drive the moving platform 1.11 and the second driving block 1.10 to move forward and backward under the guidance of the limit rod 1.9, so that the polishing assembly 5 can move forward and backward and left and right, and the surface of the fiberboard is comprehensively polished, the moving platform 1.11 is provided with an automatic liquid adding assembly 2 and a polishing assembly 5, the upper outer wall of the chassis 1 is provided with a positioning assembly 3, and the interior of the chassis 1 is provided with a dust removal assembly 4.

[0027] Specifically, Figure 2 and Figure 3As shown, an automatic polishing device for fiberboard processing, the automatic liquid adding component 2 includes a notch 2.1, a liquid storage cylinder 2.2, a liquid dripping tube 2.21, a stopper 2.22, a driving rod 2.23, an action plate 2.24, a reset spring 2.25, a moving plate 2.3, a speed regulating motor 2.4 and a cam 2.5, a notch 2.1 is opened on the moving platform 1.11, a liquid storage cylinder 2.2 is slidably arranged in the notch 2.1, the bottom end of the liquid storage cylinder 2.2 is connected to the liquid dripping tube 2.21, and the liquid storage cylinder 2.2 is connected to the liquid dripping tube 2.21. The interior of the cylinder 2.2 is provided with a stopper 2.22, and a driving rod 2.23 is fixedly connected to the upper side wall of the stopper 2.22. The upper end of the driving rod 2.23 extends out of the liquid storage cylinder 2.2 and is fixedly connected to an action plate 2.24. A return spring 2.25 is provided between the action plate 2.24 and the upper outer wall of the liquid storage cylinder 2.2. The return spring 2.25 is sleeved on the driving rod 2.23. A moving plate 2.3 is also slidably connected to the moving platform 1.11, and a speed regulating electric motor is installed on the moving plate 2.3. Machine 2.4, the output shaft end of the speed regulating motor 2.4 is fixedly connected with a cam 2.5, and the cam 2.5 cooperates with the action plate 2.24. During the polishing process, the output shaft of the speed regulating motor 2.4 can drive the cam 2.5 to rotate. When the cam 2.5 rotates, the action plate 2.24 will drive the driving rod 2.23 to move upward, and the driving rod 2.23 will pull the blocking plug 2.22 to move upward. At this time, the polishing liquid in the liquid storage cylinder 2.2 can drip onto the surface of the fiberboard through the drip tube 2.21. When the protruding end of the cam 2.5 is separated from the action plate 2.24, under the pull of the reset spring 2.25, the action plate 2.24, the driving rod 2.23 and the blocking plug 2.22 will move downward, and the blocking plug 2.22 will block the bottom end of the liquid storage cylinder 2.2, so that the polishing liquid cannot drip, thereby realizing intermittent liquid addition. The liquid addition work can be completed without manual intervention, which greatly improves the work efficiency, and the liquid addition amount can be controlled by adjusting the speed of the speed regulating motor 2.4, which is more practical.

[0028] Specifically, Figure 4 As shown, an automatic polishing device for fiberboard processing, the positioning assembly 3 includes a slide groove 3.1, a slider 3.2, a bidirectional screw 3.3, a handwheel 3.4 and a hollow positioning plate 3.5. A slide groove 3.1 is opened at the center of the upper outer wall of the chassis 1, and two symmetrically distributed sliders 3.2 are slidably connected in the slide groove 3.1. A bidirectional screw 3.3 is rotatably connected to one side wall of the slide groove 3.1, and the other end of the bidirectional screw 3.3 is threaded through the two sliders 3.2 and extends to the outside of the chassis 1 and is fixedly connected to the handwheel 3.4. A hollow positioning plate 3.5 is fixedly connected to the upper side wall of the slider 3.2. The fiberboard is placed between the two hollow positioning plates 3.5, and then the handwheel 3.4 is rotated. The handwheel 3.4 drives the bidirectional screw 3.3 to rotate. When the bidirectional screw 3.3 rotates, the two sliders 3.2 can be brought close to each other, so that the two hollow positioning plates 3.5 clamp and fix the fiberboard to prevent the fiberboard from shifting during polishing.

[0029] Specifically, Figure 5 and Figure 6 As shown, an automatic polishing device for fiberboard processing, the dust removal component 4 includes a box body 4.1, a dust removal filter element 4.2, a fan 4.3, a connecting hose 4.4 and a connecting pipe 4.5. The box body 4.1 is fixedly connected to the lower inner wall of the box body 1, and the dust removal filter element 4.2 is slidably connected inside the box body 4.1. The fan 4.3 is installed on one side of the outer wall of the box body 1. The box body 4.1 and the air inlet end of the fan 4.3 are connected through the connecting pipe 4.5. The box body 4.1 and the hollow positioning plate 3.5 are connected through a connecting hose 4.4. Under the action of the fan 4.3, the air generated during the polishing process The generated dust will enter the hollow positioning plate 3.5 through the through hole 3.51, and then enter the box body 4.1 through the connecting hose 4.4. The dust filter element 4.2 will absorb the dust, and the filtered air will enter the fan 4.3 through the connecting pipe 4.5 and be discharged to the outside, effectively preventing the dust from flying and causing harm to the health of workers. When it is necessary to replace or clean the dust filter element 4.2, the inspection door 1.12 can be opened, and the handle on the dust filter element 4.2 can be pulled out of the box body 4.1. When installing, the dust filter element 4.2 can be inserted into the box body 4.1, and the disassembly and assembly are convenient and quick.

[0030] Specifically, Figure 2 As shown, an automatic polishing device for fiberboard processing, the polishing assembly 5 includes a cylinder 5.1, a polishing motor 5.2 and a polishing wheel 5.3, the cylinder 5.1 is installed on the upper side wall of the movable platform 1.11, the telescopic end of the cylinder 5.1 passes through the movable platform 1.11 and is fixedly connected to the polishing motor 5.2, the polishing wheel 5.3 is installed on the output shaft end of the polishing motor 5.2, the telescopic end of the cylinder 5.1 can push the polishing motor 5.2 to move downward, so that the polishing wheel 5.3 contacts the surface of the fiberboard, and the output shaft end of the polishing motor 5.2 can drive the polishing wheel 5.3 to rotate, so that the polishing wheel 5.3 polishes the fiberboard.

[0031] Specifically, Figure 2 As shown, an automatic polishing device for fiberboard processing, a locking bolt 2.31 is provided on the movable plate 2.3, and a connecting rod 2.32 is fixedly connected between the movable plate 2.3 and the liquid storage cylinder 2.2. Before polishing, the locking bolt 2.31 can be loosened to make the movable plate 2.3 drive the speed regulating motor 2.4 to move, and under the drive of the connecting rod 2.32, the liquid storage cylinder 2.2 will also move together, and the distance between the drip tube 2.21 and the polishing wheel 5.3 can be adjusted, which is more flexible.

[0032] Specifically, Figure 4As shown, an automatic polishing device for fiberboard processing, a plurality of through holes 3.51 are provided on the side walls of two hollow positioning plates 3.5 close to each other, and dust generated during polishing enters the hollow positioning plates 3.5 through the through holes 3.51.

[0033] Specifically, Figure 1 As shown, an automatic polishing device for fiberboard processing, a maintenance door 1.12 is provided on a side wall of the chassis 1 away from the fan 4.3, and after opening, the dust filter element 4.2 can be easily disassembled and assembled.

[0034] When the utility model is implemented, the fiberboard is placed between the two hollow positioning plates 3.5, and then the hand wheel 3.4 is rotated, and the hand wheel 3.4 drives the bidirectional screw 3.3 to rotate. When the bidirectional screw 3.3 rotates, the two sliders 3.2 can be brought close to each other, so that the two hollow positioning plates 3.5 clamp and fix the fiberboard. After the fiberboard is fixed, the telescopic end of the cylinder 5.1 pushes the polishing motor 5.2 to move downward, so that the polishing wheel 5.3 contacts the surface of the fiberboard, and the output shaft end of the polishing motor 5.2 can drive the polishing wheel 5.3 to rotate, so that the polishing wheel 5.3 polishes the fiberboard. During the polishing process, the output shaft of the speed regulating motor 2.4 can drive the cam 2.5 to rotate, and the cam 2.5 will act when it rotates. The plate 2.24 drives the driving rod 2.23 to move upward, and the driving rod 2.23 will pull the stopper 2.22 to move upward. At this time, the polishing liquid in the liquid storage cylinder 2.2 can drip onto the surface of the fiberboard through the drip tube 2.21. When the protruding end of the cam 2.5 is separated from the action plate 2.24, under the pull of the reset spring 2.25, the action plate 2.24, the driving rod 2.23 and the stopper 2.22 will move downward, and the stopper 2.22 will block the bottom end of the liquid storage cylinder 2.2, so that the polishing liquid cannot drip, thereby realizing intermittent liquid addition. The liquid addition work can be completed without manual intervention, which greatly improves the work efficiency. In addition, the liquid addition amount can be controlled by adjusting the speed of the speed regulating motor 2.4, which is more practical. Before polishing, the lock can be loosened Bolt 2.31 enables the moving plate 2.3 to drive the speed regulating motor 2.4 to move. Driven by the connecting rod 2.32, the liquid storage cylinder 2.2 will also move together, and the distance between the drip tube 2.21 and the polishing wheel 5.3 can be adjusted, which is more flexible. The output shaft of the first driving motor 1.4 can drive the first screw 1.5 to rotate. When the first screw 1.5 rotates, the moving block 1.3 can move left and right, so that the moving platform 1.11 can move left and right. The output shaft of the second driving motor 1.6 can drive the second screw 1.7 to rotate. When the second screw 1.7 rotates, the first driving block 1.8 can drive the moving platform 1.11 and the second driving block 1.10 to move forward and backward under the guidance of the limit rod 1.9, so that the polishing assembly 5 can move forward, backward, left and right to polish the surface of the fiberboard comprehensively. Under the action of the fan 4.3, the dust generated during the polishing process will enter the hollow positioning plate 3.5 through the through hole 3.51, and then enter the box body 4.1 through the connecting hose 4.4. The dust filter element 4.2 will absorb the dust, and the filtered air will enter the fan 4.3 through the connecting pipe 4.5 and be discharged to the outside, effectively preventing the dust from flying and causing harm to the health of workers. When it is necessary to replace or clean the dust filter element 4.2, the inspection door 1.12 can be opened, and the handle on the dust filter element 4.2 can be pulled out of the box body 4.1. When installing, the dust filter element 4.2 can be inserted into the box body 4.1, and the disassembly and assembly are convenient and quick.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic polishing device for fiberboard processing, comprising a housing (1), characterized in that: A U-shaped bracket (1.1) is fixedly connected to the front and rear sides of the upper outer wall of the chassis (1), and a through slot (1.2) is provided on the U-shaped bracket (1.1). A moving block (1.3) is slidably connected in the through slot (1.2). A first drive motor (1.4) is installed on one side outer wall of the U-shaped bracket (1.1). The output shaft end of the first drive motor (1.4) extends into the through slot (1.2) and is fixedly connected to a first screw rod (1.5). The other end of the first screw rod (1.5) is threadedly passed through the moving block (1.3) and is rotatably connected to a side wall of the through slot (1.2) away from the first drive motor (1.4). A second drive motor (1.6) is installed on the rear side wall of one of the moving blocks (1.3). A second screw rod (1.7) is fixedly connected to the output shaft end of the driving motor (1.6); the other end of the second screw rod (1.7) is rotationally connected to another moving block (1.3); a first driving block (1.8) is threadedly sleeved on the second screw rod (1.7); a limiting rod (1.9) is fixedly connected between the two moving blocks (1.3); a second driving block (1.10) is slidingly sleeved on the limiting rod (1.9); a moving platform (1.11) is fixedly connected between the first driving block (1.8) and the second driving block (1.10); an automatic liquid adding component (2) and a polishing component (5) are provided on the moving platform (1.11); a positioning component (3) is provided on the upper outer wall of the chassis (1); and a dust removal component (4) is provided inside the chassis (1).

2. The automatic polishing device for fiberboard processing according to claim 1, characterized in that: The automatic liquid adding component (2) comprises a notch (2.1), a liquid storage cylinder (2.2), a liquid dropper (2.21), a stopper (2.22), a driving rod (2.23), an action plate (2.24), a reset spring (2.25), a moving plate (2.3), a speed regulating motor (2.4) and a cam (2.5); the moving platform (1.11) is provided with a notch (2.1), a liquid storage cylinder (2.2) is slidably arranged in the notch (2.1), the bottom end of the liquid storage cylinder (2.2) is connected to the liquid dropper (2.21), a stopper (2.22) is arranged inside the liquid storage cylinder (2.2), and a stopper (2.22) is fixedly connected to the upper side wall of the stopper (2.22). A driving rod (2.23) is connected, the upper end of the driving rod (2.23) extends out of the liquid storage cylinder (2.2) and is fixedly connected to an action plate (2.24), a return spring (2.25) is provided between the action plate (2.24) and the upper outer wall of the liquid storage cylinder (2.2), the return spring (2.25) is sleeved on the driving rod (2.23), the moving platform (1.11) is also slidably connected to a moving plate (2.3), a speed regulating motor (2.4) is installed on the moving plate (2.3), the output shaft end of the speed regulating motor (2.4) is fixedly connected to a cam (2.5), and the cam (2.5) cooperates with the action plate (2.24).

3. The automatic polishing device for fiberboard processing according to claim 1, characterized in that: The positioning assembly (3) comprises a slide groove (3.1), a slider (3.2), a bidirectional screw (3.3), a handwheel (3.4) and a hollow positioning plate (3.5); a slide groove (3.1) is provided at the center of the upper outer wall of the chassis (1); two symmetrically distributed sliders (3.2) are slidably connected in the slide groove (3.1); a bidirectional screw (3.3) is rotatably connected to one side wall of the slide groove (3.1); the other end of the bidirectional screw (3.3) is threadedly passed through the two sliders (3.2) and extends to the outside of the chassis (1) and is fixedly connected to the handwheel (3.4); and a hollow positioning plate (3.5) is fixedly connected to the upper side wall of the slider (3.2).

4. The automatic polishing device for fiberboard processing according to claim 3, characterized in that: The dust removal assembly (4) comprises a box body (4.1), a dust removal filter element (4.2), a fan (4.3), a connecting hose (4.4) and a connecting pipe (4.5); the box body (4.1) is fixedly connected to the lower inner wall of the box body (1); the dust removal filter element (4.2) is slidably connected inside the box body (4.1); the fan (4.3) is installed on one outer wall of the box body (1); the box body (4.1) and the air inlet end of the fan (4.3) are connected via a connecting pipe (4.5); the box body (4.1) and the hollow positioning plate (3.5) are connected via a connecting hose (4.4).

5. The automatic polishing device for fiberboard processing according to claim 1, characterized in that: The polishing assembly (5) comprises a cylinder (5.1), a polishing motor (5.2) and a polishing wheel (5.3); the cylinder (5.1) is mounted on the upper side wall of the movable platform (1.11); the telescopic end of the cylinder (5.1) passes through the movable platform (1.11) and is fixedly connected to the polishing motor (5.2); and the polishing wheel (5.3) is mounted on the output shaft end of the polishing motor (5.2).

6. The automatic polishing device for fiberboard processing according to claim 2, characterized in that: A locking bolt (2.31) is provided on the movable plate (2.3), and a connecting rod (2.32) is fixedly connected between the movable plate (2.3) and the liquid storage cylinder (2.2).

7. The automatic polishing device for fiberboard processing according to claim 3, characterized in that: A plurality of through holes (3.51) are provided on one side wall of the two hollow positioning plates (3.5) close to each other.

8. The automatic polishing device for fiberboard processing according to claim 4, characterized in that: An inspection door (1.12) is provided on a side wall of the chassis (1) away from the fan (4.3).

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