Corner burr grinding device and method for wall brick production

Abstract

The invention discloses a corner burr grinding device and method for wall brick production, and belongs to the field of wall brick production. The invention discloses a corner burr grinding device and method for wall brick production, the corner burr grinding device comprises a rack, a bearing plate is connected to the rack in a sliding mode, the corner burr grinding device further comprises a cleaning assembly which is installed below the rack and extends into the rack, and the cleaning assembly is used for cleaning burrs and sweeps; the polishing assemblies are installed in the rack and arranged on the two sides of the bearing plate, the polishing assemblies are used for conducting self-adaptive polishing on the wall bricks, and the wall brick polishing device further comprises a driving assembly used for driving the bearing frame to move; the driving assembly comprises a U-shaped frame and a positioning shell which are mounted on the surface of the rack; according to the polishing device, the polishing assembly and the air pump are arranged to inflate the interior of the air bag, so that the air bag is gradually expanded, the positions of the mounting shell and the polishing piece can be adjusted, the self-adaptive polishing effect can be achieved by adjusting the gap between the polishing piece and the wall brick, and therefore the polishing quality of the corner burrs of the wall brick is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wall tile production, and in particular to a device and method for grinding corner burrs for wall tile production. Background Art

[0002] Wall tiles are ceramic or porcelain panels made from materials such as clay and quartz sand through processes such as grinding, pressing, glazing, and sintering. The main varieties include glazed tiles, polished tiles, and vitrified tiles. Laying wall tiles is an effective way to protect walls from water splashes. During the production process of wall tiles, there are many burrs on the sides and corners, which need to be processed using a grinding device.

[0003] Since the burrs on the corners of wall tiles are unevenly distributed and of different sizes, some tiny burrs cannot be completely removed when the grinding disc is used to grind the burrs, thereby reducing the quality of the product. At the same time, the burr debris will splash everywhere during the grinding process, making it inconvenient for the staff to clean up. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the burrs on the edges and corners of wall tiles are unevenly ground and the burrs and waste are difficult to clean, and to propose a device and method for grinding the burrs on the edges and corners of wall tiles for production.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for grinding corner burrs for wall tile production comprises a frame, a bearing plate is slidably connected to the frame, and further comprises: a cleaning component installed below the frame and extending to the inside of the frame, the cleaning component is used to clean burrs and waste chips; a grinding component is installed inside the frame and arranged on both sides of the bearing plate, the grinding component is used to adaptively grind the wall tiles.

[0007] In order to position and install the wall tiles, preferably, it also includes an installation component, which includes a load-bearing frame, which is slidably connected to the surface of the frame, and an electric telescopic rod is fixedly installed on the top of the load-bearing frame. The telescopic end of the electric telescopic rod is fixedly connected to a pressure block, and the pressure block is located above the load-bearing plate.

[0008] In order to facilitate the lateral reciprocating movement of the wall tiles, it further includes a driving component for driving the carrier frame to move; the driving component includes a U-shaped frame and a positioning shell installed on the surface of the frame, and motors are fixedly installed on both sides of the U-shaped frame, and the output end of the motor is fixedly connected to a first connecting rod, and the end of the first connecting rod away from the motor is rotatably connected to a second connecting rod, and the end of the second connecting rod away from the first connecting rod is rotatably connected to a limiting block, and the inner cavity of the limiting block is slidably connected to the limiting rod, and both ends of the limiting rod are fixedly installed in the inner cavity of the positioning shell, and the top of the limiting block is fixedly connected to an L-shaped fixing rod, and the end of the L-shaped fixing rod away from the limiting block is fixedly connected to the surface of the carrier frame.

[0009] In order to improve the stability of the movement of the carrying plate, further, a plug rod is fixedly connected to the surface of the pressure block, and a positioning sleeve used in conjunction with the plug rod is fixedly connected to the top of the carrying plate.

[0010] In order to improve the stability of the lateral movement of the carrier, further, a sliding block is fixedly installed on the inner side of the carrier, and a sliding groove used in conjunction with the sliding block is provided on the surface of the frame.

[0011] In order to clean burrs and waste chips from the inner cavity of the frame, preferably, the cleaning assembly includes a reciprocating screw, one end of which is rotatably connected to the surface of the frame, a threaded sleeve is threadedly connected to the surface of the reciprocating screw, a shovel plate is fixedly connected to the side of the threaded sleeve away from the reciprocating screw, and the bottom of the shovel plate is in contact with the inner wall of the frame; the reciprocating screw is connected to the motor by a belt.

[0012] In order to adaptively grind the burrs on the edges and corners of wall tiles, preferably, the grinding assembly includes a fixed shell, which is fixedly installed on the side of the frame close to the bearing plate, and the inner cavity of the fixed shell is fixedly installed with a limiting shell, the inner cavity of the limiting shell is plugged with a positioning block, one side of the positioning block is fixedly connected with a mounting shell, and the inner cavity of the mounting shell is fixedly installed with a grinding sheet; the grinding assembly also includes an air pump and an air bag, the air pump is fixedly installed on the surface of the U-shaped frame, the air bag is fixedly installed on the inner cavity of the limiting shell, the air bag is arranged on one side of the positioning block, and the output end of the air pump is connected to the inner cavity of the air bag through a conduit.

[0013] In order to limit the mounting shell, further, a tension spring is provided on one side of the mounting shell, one end of the tension spring is fixedly connected to one side of the mounting shell, and the other end of the tension spring is fixedly connected to the inner wall of the fixed shell.

[0014] In order to guide and collect burrs and waste chips, preferably, a guide groove is opened in the inner cavity of the frame, and the bottom of the frame is fixedly mounted on a guide shell, and the guide shell is located below the guide groove and communicated with the inner cavity of the guide groove.

[0015] A method for using a corner burr grinding device for wall tile production, the operating steps are as follows:

[0016] Step 1: Place the wall tiles on top of the load-bearing plate;

[0017] Step 2: Use the electric telescopic rod to drive the pressure block to move downward to fix the wall bricks on the top of the bearing plate;

[0018] Step 3: The motor drives the carrier to move back and forth horizontally, so that the burrs on the corners of the wall tiles come into contact with the grinding sheet;

[0019] Step 4: The air pump inflates the air bag and uses the expansion of the air bag to adjust the position of the grinding piece;

[0020] Step 5: When the output end of the motor rotates, it drives the reciprocating screw to rotate, so that the threaded sleeve drives the shovel plate to move back and forth horizontally to remove the burrs and waste chips splashed inside the frame.

[0021] Compared with the prior art, the present invention provides a device and method for grinding corner burrs for wall tile production, which has the following beneficial effects:

[0022] 1. The device for grinding burrs at corners used in the production of wall tiles is provided with an installation assembly. After the wall tiles are installed, a motor drives one end of a first connecting rod to rotate about the axis of the motor, so that the bearing frame drives the wall tiles to move back and forth laterally, which is beneficial for full frictional contact between the wall tiles and the grinding disc, and removes burrs on the surface.

[0023] 2. The device for grinding burrs at corners used in the production of wall tiles is provided with a cleaning component. When the output end of the motor rotates, the synchronous wheel drives the reciprocating screw, so that the threaded sleeve drives the shovel plate to move back and forth horizontally, thereby cleaning the burrs and waste chips splashed inside the frame.

[0024] 3. The edge and corner burr grinding device for wall tile production can guide and collect burrs and waste chips by arranging guide grooves and guide shells, so as to facilitate the cleaning and maintenance of the workers.

[0025] The parts not involved in the device are the same as the prior art or can be implemented by using the prior art. The present invention sets a grinding component, and an air pump inflates the inside of the airbag to make it gradually expand. The position of the mounting shell and the grinding sheet can be adjusted, and the gap between the grinding sheet and the wall tile can be adjusted to achieve adaptive grinding, thereby improving the grinding quality of burrs on the edges and corners of the wall tiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a device for grinding corner burrs for wall tile production proposed by the present invention;

[0027] Figure 2This is a right view of the overall structure of a device for grinding corner burrs for wall tile production proposed by the present invention;

[0028] Figure 3 This is a schematic structural diagram of an installation component and a cleaning component of a corner burr grinding device for wall tile production proposed by the present invention;

[0029] Figure 4 This is a structural cross-sectional view of an installation assembly of a device for grinding corner burrs for wall tile production proposed by the present invention;

[0030] Figure 5 The invention provides a device for grinding corner burrs for wall tile production. Figure 4 A magnified view of the structure at center A;

[0031] Figure 6 This is a structural cross-sectional view of a cleaning component of a corner burr grinding device for wall tile production proposed by the present invention;

[0032] Figure 7 This is a structural cross-sectional view of a grinding assembly of an edge and corner burr grinding device for wall tile production proposed by the present invention;

[0033] Figure 8 This is a schematic structural diagram of a grinding assembly of a device for grinding corner burrs for wall tile production proposed by the present invention;

[0034] Fig. 9 This is a schematic diagram of the structural disassembly of a frame and a bearing plate of a device for grinding corner burrs for wall tile production proposed by the present invention.

[0035] In the figure: 1. frame; 2. bearing plate; 3. positioning sleeve; 4. slide groove; 5. installation assembly; 501. bearing frame; 502. electric telescopic rod; 503. pressure block; 504. insertion rod; 505. U-shaped frame; 506. positioning shell; 507. motor; 508. first connecting rod; 509. second connecting rod; 510. limit block; 511. limit rod; 512. L-shaped fixing rod; 513. slider; 6. cleaning assembly; 601. reciprocating screw; 602. threaded sleeve; 603. shovel plate; 7. grinding assembly; 701. fixing shell; 702. limit shell; 703. positioning block; 704. installation shell; 705. grinding sheet; 706. air pump; 707. air bag; 708. tension spring; 8. guide groove; 9. guide shell. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Embodiment 1:

[0039] Reference Figure 1-Figure 9 A device for grinding corner burrs for wall tile production includes a frame 1, two sliding rods are fixedly installed in the frame 1, the surfaces of the sliding rods are slidably connected with a bearing plate 2, and a rubber anti-skid pad is fixedly installed on the top of the bearing plate 2. It also includes: a cleaning component 6, which is installed under the frame 1 and extends to the inside of the frame 1, and the cleaning component 6 is used to clean burrs and waste chips; a grinding component 7, which is installed in the frame 1 and is arranged on both sides of the bearing plate 2, and the grinding component 7 is used for adaptive grinding of wall tiles.

[0040] It also includes an installation component 5, which includes a support frame 501, which is slidably connected to the surface of the frame 1, and an electric telescopic rod 502 is fixedly installed on the top of the support frame 501. The telescopic end of the electric telescopic rod 502 is fixedly connected to a pressure block 503, and the pressure block 503 is located above the support plate 2. The pressure block 503 consists of a square plate and four supporting legs.

[0041] It also includes a driving component for driving the carrier 501 to move; the driving component includes a U-shaped frame 505 and a positioning shell 506 installed on the surface of the frame 1, the number of the positioning shells 506 is two, and the two positioning shells 506 are installed on both sides of the frame 1, and motors 507 are fixedly installed on both sides of the U-shaped frame 505, and the output end of the motor 507 is fixedly connected to a first connecting rod 508, and the end of the first connecting rod 508 away from the motor 507 is rotatably connected to the second connecting rod 509, and the end of the second connecting rod 509 away from the first connecting rod 508 is rotatably connected to a limiting block 510, and the inner cavity of the limiting block 510 is slidably connected to a limiting rod 511, and both ends of the limiting rod 511 are fixedly installed in the inner cavity of the positioning shell 506, and the top of the limiting block 510 is fixedly connected to an L-shaped fixing rod 512, and the end of the L-shaped fixing rod 512 away from the limiting block 510 is fixedly connected to the surface of the carrier 501.

[0042] The surface of the pressure block 503 is fixedly connected with an insertion rod 504 , and the number of the insertion rods 504 is four. The top of the carrying plate 2 is fixedly connected with four positioning sleeves 3 used in conjunction with the insertion rods 504 .

[0043] A slider 513 is fixedly mounted on the inner side of the carrier 501 , and a slide groove 4 for use with the slider 513 is provided on the surface of the frame 1 , and the slider 513 is slidably connected to the inner cavity of the slide groove 4 .

[0044] Specifically, when grinding the burrs on the wall tiles, the wall tiles are placed on the top of the bearing plate 2, and then the electric telescopic rod 502 is started by using the external control switch. The telescopic end of the electric telescopic rod 502 drives the pressure block 503 to move downward, and when the pressure block 503 moves downward, it drives the four insertion rods 504 to move downward. When the pressure block 503 moves downward and contacts the top of the wall tile, the insertion rod 504 is inserted into the inner cavity of the positioning sleeve 3. At this time, the staff uses the external control switch to start the motor 507. The output end of the motor 507 drives one end of the first connecting rod 508 to rotate about the axis of the motor 507, and the other end of the first connecting rod 508 drives the second connecting rod 509 When one end of the second connecting rod 509 moves, the other end drives the limit block 510 to slide back and forth laterally on the surface of the limit rod 511. When the limit block 510 slides back and forth laterally, it drives the L-shaped fixing rod 512 to move. When the L-shaped fixing rod 512 moves, it drives the supporting frame 501 to move back and forth laterally. When the supporting frame 501 moves back and forth laterally, it drives the electric telescopic rod 502 and the pressure block 503 to move back and forth laterally. When the pressure block 503 moves back and forth laterally, it drives the supporting plate 2 to slide back and forth laterally on the surface of the frame 1, so that the position of the wall tiles can be adjusted back and forth, so that the burrs on the corners of the wall tiles can be moved on the grinding sheet 705.

[0045] Embodiment 2:

[0046] Reference Figure 2 , Figure 3 and Figure 6 , which is basically the same as the first embodiment, and further, is a specific implementation plan for improving the cleaning quality inside the rack 1.

[0047] The cleaning assembly 6 includes a reciprocating screw 601, one end of which is rotatably connected to the surface of the frame 1, and a threaded sleeve 602 is threadedly connected to the surface of the reciprocating screw 601. A shovel plate 603 is fixedly connected to the side of the threaded sleeve 602 away from the reciprocating screw 601, and the bottom of the shovel plate 603 is in contact with the inner wall of the frame 1. Synchronous wheels are fixedly installed on one side of the reciprocating screw 601 and the motor 507, and a belt transmission is provided between the two synchronous wheels.

[0048] Specifically, the output end of the motor 507 drives one of the synchronous wheels to rotate during the rotation process, and the synchronous wheel drives the belt to transmit during the rotation, and the belt drives another synchronous wheel to rotate during the transmission, and the other synchronous wheel drives the reciprocating screw 601 to rotate during the rotation, and the reciprocating screw 601 drives the threaded sleeve 602 to move back and forth laterally during the rotation, and the threaded sleeve 602 drives the shovel plate 603 to move back and forth laterally during the reciprocating movement laterally, and the shovel plate 603 moves back and forth laterally in the inner cavity of the frame 1, so as to clean the burrs and waste chips splashed inside the frame 1 and make it move to both sides of the frame 1.

[0049] Embodiment three:

[0050] Reference Figure 1 , Figure 7 and Figure 8 , which is basically the same as the first embodiment, and further, is a specific implementation plan for improving the quality of grinding burrs of wall tiles.

[0051] The polishing assembly 7 includes a fixed shell 701, which is fixedly installed on one side of the frame 1 close to the supporting plate 2. A limiting shell 702 is fixedly installed in the inner cavity of the fixed shell 701. A positioning block 703 is inserted in the inner cavity of the limiting shell 702. A mounting shell 704 is fixedly connected to one side of the positioning block 703. A polishing sheet 705 is fixedly installed in the inner cavity of the mounting shell 704. The polishing assembly 7 also includes an air pump 706 and an air bag 707. The air pump 706 is fixedly installed on the surface of the U-shaped frame 505. The air bag 707 is fixedly installed in the inner cavity of the limiting shell 702. The air bag 707 is arranged on one side of the positioning block 703. The output end of the air pump 706 is fixedly connected to a conduit, and the other end of the conduit is connected to the inner cavities of the two air bags 707.

[0052] A tension spring 708 is disposed on one side of the mounting shell 704 , one end of the tension spring 708 is fixedly connected to one side of the mounting shell 704 , and the other end of the tension spring 708 is fixedly connected to the inner wall of the fixed shell 701 .

[0053] Specifically, after the wall tile moves back and forth laterally and contacts the grinding sheet 705, the friction force of the grinding sheet 705 can remove the larger burrs on the corners of the wall tile. After the larger burrs are removed, there will be a gap between the grinding sheet 705 and the wall tile. At this time, the staff uses the external control switch to start the air pump 706, and the output end of the air pump 706 inflates one end of the catheter to gradually expand the airbag 707. After the airbag 707 expands, it squeezes the positioning block 703 on one side. The positioning block 703 is squeezed and drives the mounting shell 704 and the grinding sheet 705 to move toward one side of the wall tile. By adjusting the gap between the grinding sheet 705 and the wall tile, the quality and efficiency of deburring the wall tile can be improved. At the same time, after the grinding is completed, the staff releases the gas inside the airbag 707. At this time, under the reaction force of the tension spring 708, the mounting shell 704 and the grinding sheet 705 can be reset.

[0054] Embodiment 4:

[0055] Reference Figure 1 , Figure 2 and Fig. 9 , which is basically the same as the second embodiment, and further, a specific implementation plan for improving the burr and waste chip guiding and discharge is provided.

[0056] The inner cavity of the frame 1 is provided with four guide grooves 8 . The bottom of the frame 1 is fixedly mounted on four guide shells 9 . The four guide shells 9 are all located below the four guide grooves 8 and communicate with the inner cavities of the guide grooves 8 .

[0057] Specifically, when the shovel plate 603 pushes the burrs and waste chips to the two sides of the frame 1, the burrs and waste chips will fall into the inner cavity of the guide shell 9 through the guide groove 8, so that it is convenient for the staff to clean and maintain them.

[0058] A method for using a corner burr grinding device for wall tile production, the operating steps are as follows:

[0059] Step 1: Place the wall bricks on top of the bearing plate 2;

[0060] Step 2: Use the electric telescopic rod 502 to drive the pressure block 503 to move downward to fix the wall bricks on the top of the bearing plate 2;

[0061] Step 3: The motor 507 drives the carrier 501 to move back and forth horizontally, so that the burrs on the corners of the wall tiles come into contact with the grinding sheet 705;

[0062] Step 4: The air pump 706 inflates the air bag 707 to adjust the position of the grinding sheet 705 by utilizing the expansion of the air bag 707;

[0063] Step 5: When the output end of the motor 507 rotates, it drives the reciprocating screw 601 to rotate, so that the threaded sleeve 602 drives the shovel plate 603 to move back and forth horizontally to remove the burrs and waste chips splashed inside the frame 1.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for grinding corner burrs for wall tile production, comprising a frame (1), a bearing plate (2) being slidably connected to the frame (1), characterized in that: Also includes: A cleaning assembly (6) is installed below the frame (1) and extends into the interior of the frame (1), and the cleaning assembly (6) is used to clean burrs and waste chips; A grinding assembly (7) is installed inside the frame (1) and is arranged on both sides of the bearing plate (2). The grinding assembly (7) is used for adaptive grinding of wall tiles.

2. A device for grinding corner burrs for wall tile production according to claim 1, characterized in that: The invention also comprises an installation component (5), wherein the installation component (5) comprises a support frame (501), wherein the support frame (501) is slidably connected to the surface of the frame (1), an electric telescopic rod (502) is fixedly installed on the top of the support frame (501), and a pressure block (503) is fixedly connected to the telescopic end of the electric telescopic rod (502), and the pressure block (503) is located above the support plate (2).

3. A device for grinding corner burrs for wall tile production according to claim 2, characterized in that: Also included is a driving assembly for driving the carrier (501) to move; The driving assembly comprises a U-shaped frame (505) and a positioning shell (506) mounted on the surface of the frame (1), a motor (507) being fixedly mounted on both sides of the U-shaped frame (505), an output end of the motor (507) being fixedly connected to a first connecting rod (508), an end of the first connecting rod (508) away from the motor (507) being rotatably connected to a second connecting rod (509), an end of the second connecting rod (509) away from the first connecting rod (508) being rotatably connected to a limiting block (510), an inner cavity of the limiting block (510) being slidably connected to a limiting rod (511), both ends of the limiting rod (511) being fixedly mounted in the inner cavity of the positioning shell (506), an L-shaped fixing rod (512) being fixedly connected to the top of the limiting block (510), and an end of the L-shaped fixing rod (512) away from the limiting block (510) being fixedly connected to the surface of the supporting frame (501).

4. The device for grinding corner burrs for wall tile production according to claim 3, characterized in that: The surface of the pressure block (503) is fixedly connected with an insertion rod (504), and the top of the support plate (2) is fixedly connected with a positioning sleeve (3) used in conjunction with the insertion rod (504).

5. The device for grinding corner burrs for wall tile production according to claim 2, characterized in that: A sliding block (513) is fixedly mounted on the inner side of the carrier frame (501), and a sliding groove (4) for use with the sliding block (513) is provided on the surface of the frame (1).

6. The device for grinding corner burrs for wall tile production according to claim 1, characterized in that: The cleaning assembly (6) comprises a reciprocating screw (601), one end of the reciprocating screw (601) is rotatably connected to the surface of the frame (1), a threaded sleeve (602) is threadedly connected to the surface of the reciprocating screw (601), a shovel plate (603) is fixedly connected to the side of the threaded sleeve (602) away from the reciprocating screw (601), and the bottom of the shovel plate (603) is in contact with the inner wall of the frame (1); The reciprocating screw (601) and the motor (507) are connected via a belt.

7. The device for grinding corner burrs for wall tile production according to claim 1, characterized in that: The grinding assembly (7) comprises a fixed shell (701), the fixed shell (701) is fixedly mounted on a side of the frame (1) close to the bearing plate (2), a limiting shell (702) is fixedly mounted in the inner cavity of the fixed shell (701), a positioning block (703) is inserted in the inner cavity of the limiting shell (702), a mounting shell (704) is fixedly connected to one side of the positioning block (703), and a grinding sheet (705) is fixedly mounted in the inner cavity of the mounting shell (704); The polishing assembly (7) further comprises an air pump (706) and an air bag (707); the air pump (706) is fixedly mounted on the surface of the U-shaped frame (505); the air bag (707) is fixedly mounted in the inner cavity of the limiting shell (702); the air bag (707) is arranged on one side of the positioning block (703); and the output end of the air pump (706) is connected to the inner cavity of the air bag (707) via a conduit.

8. The device for grinding corner burrs for wall tile production according to claim 7, characterized in that: A tension spring (708) is provided on one side of the mounting shell (704), one end of the tension spring (708) is fixedly connected to one side of the mounting shell (704), and the other end of the tension spring (708) is fixedly connected to the inner wall of the fixed shell (701).

9. The device for grinding corner burrs for wall tile production according to claim 1, characterized in that: The inner cavity of the frame (1) is provided with a guide groove (8), the bottom of the frame (1) is fixedly mounted on a guide shell (9), and the guide shell (9) is located below the guide groove (8) and is in communication with the inner cavity of the guide groove (8).

10. A method for using a device for grinding corner burrs for wall tile production according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Place the wall bricks on top of the bearing plate (2); Step 2: Use the electric telescopic rod (502) to drive the pressure block (503) to move downward to fix the wall bricks on the top of the bearing plate (2); Step 3: The motor (507) drives the carrier (501) to move back and forth horizontally, so that the burrs on the corners of the wall tiles come into contact with the grinding sheet (705); Step 4: The air pump (706) inflates the air bag (707) to adjust the position of the grinding sheet (705) by utilizing the expansion of the air bag (707); Step 5: When the output end of the motor (507) rotates, it drives the reciprocating screw (601) to rotate, so that the threaded sleeve (602) drives the shovel plate (603) to move back and forth horizontally to remove the burrs and waste chips splashed inside the frame (1).

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