CN120307171A

CN120307171A - Automatic sandpaper changing polishing machine with dust suction function

Info

Publication number: CN120307171A
Application number: CN202510493931.8A
Authority: CN
Inventors: 黄心江; 段亚斌
Original assignee: Lvyan Intelligent Equipment Jiangsu Co ltd
Current assignee: Lvyan Intelligent Equipment Jiangsu Co ltd
Priority date: 2025-04-19
Filing date: 2025-04-19
Publication date: 2025-07-15
Anticipated expiration: 2045-04-19
Also published as: CN120307171B

Abstract

The invention discloses an automatic sand paper changing polishing machine with a dust collection function, which comprises a main body unit and a dust collection unit, wherein the main body unit comprises a processing table, a vertical plate is fixed at the top of the processing table, a hollow column is rotationally connected to the vertical plate, a plurality of rectangular frames are fixed and communicated at equal intervals along the radial direction of the hollow column, a rectangular plate is slidingly connected to the rectangular frame, a main arc plate is fixed to one side, far away from the hollow column, of the rectangular plate, an auxiliary arc plate is rotationally connected to two sides of the main arc plate through hinges, and rubber pads are fixed to the outer sides of the main arc plate and the auxiliary arc plate. When the rectangular plate moves, the hollow plate can be driven to move along with the rectangular plate, the positions of the rectangular frame and the L-shaped plate are fixed, the L-shaped plate can pull the first rotating rod and drive the first rotating rod to rotate when the hollow plate moves, the moving plate and the pulling plate can be driven to move when the first rotating rod rotates, the auxiliary arc plate is driven to rotate towards the direction close to the rectangular plate when the pulling plate moves, and the auxiliary arc plate is prevented from blocking the movement of the main arc plate.

Description

Automatic sand paper changing polishing machine with dust collection function

Technical Field

The invention relates to the technical field of polishing machines, in particular to an automatic sand paper changing polishing machine with a dust collection function.

Background

The polishing machine is a machining device for mechanically treating the surface of a workpiece to obtain the required surface finish, and can eliminate burrs and flaws on the surface of the workpiece in the polishing process, so that the flatness and the overall attractiveness of the surface of the workpiece are improved, the polishing machine is particularly important in manufacturing precise instruments and ornaments, various polishing machines are available, and common polishing machines are roller polishing machines, plane polishing machines, disc polishing machines and the like.

The publication No. CN215788996U discloses a disc polishing machine, which comprises a frame, a polishing wheel, a front-back moving workbench, a left-right moving workbench, a lifting workbench and a rotary table for fixing a workpiece, wherein the front-back moving workbench is in front-back sliding fit with the bottom of the frame, the left-right moving workbench is in left-right sliding fit with the front-back moving workbench, the lifting workbench is arranged on the left-right moving workbench to drive the rotary table to move up and down, and the rotary table is close to the polishing wheel to polish the workpiece.

When the polishing machine is used, a workpiece is usually required to be polished by means of sand paper, the sand paper needs to be replaced after the sand paper is worn for a period of time, the existing plane polishing machine is very convenient to replace the sand paper, the existing plane polishing machine can directly adsorb the sand paper through a cylinder control sucker, automatic replacement can be performed, and when the sand paper is replaced by the disc polishing machine, the disc polishing machine mainly has two modes, namely, the annular sand paper is adhered to the disc and gradually rotates the disc, so that the sand paper covers the disc, the sand paper is easy to fold, deviate and the like during laying, and is very troublesome during subsequent replacement, the annular sand paper is sleeved on the disc, but the diameter of the annular sand paper is usually only slightly larger than the diameter of the disc, and the annular sand paper needs to be continuously and slowly rotated and moved to be sleeved on the disc, so that the annular sand paper needs longer time and is very troublesome to replace.

Disclosure of Invention

In view of the above, the present invention provides an automatic sand paper changing polisher with dust collection function, which aims to solve the technical problems that when the sand paper is replaced by the disc polisher, there are two main ways, one way is to adhere annular sand paper to the disc and gradually rotate the disc, so that the sand paper covers the disc, the sand paper is easy to wrinkle and deviate when being laid, the subsequent replacement is very troublesome, the annular sand paper is sleeved on the disc, but the diameter of the annular sand paper is usually only slightly larger than the diameter of the disc, and when the annular sand paper is sleeved on the disc, the annular sand paper needs to be continuously and slowly rotated and moved to be sleeved on the disc, so that the annular sand paper needs to be longer time and is very troublesome to replace.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The invention provides an automatic sand paper changing polishing machine with a dust collection function, which comprises:

The dust collection device comprises a main body unit and a dust collection unit, wherein the main body unit comprises a processing table, a vertical plate is fixed at the top of the processing table, a hollow column is rotationally connected in the vertical plate, a plurality of rectangular frames are fixed and communicated along the outer side of the hollow column at equal radial intervals, a rectangular plate is connected in the rectangular frame in a sliding mode, one side, far away from the hollow column, of the rectangular plate is fixedly provided with a main arc plate, two sides of the main arc plate are respectively connected with auxiliary arc plates through hinge rotation, a plurality of main arc plates and the outer sides of the auxiliary arc plates are respectively fixedly provided with a rubber pad, a plurality of main arc plates and a plurality of auxiliary arc plates can form circular rings for supporting annular sand paper, a driving assembly for driving the main arc plates to move is arranged in the hollow column, a control assembly for controlling the rotation of the auxiliary arc plates is arranged on the rectangular plate, and the driving assembly can drive the control assembly to synchronously work during operation, and the dust collection unit comprises a plurality of dust collection covers distributed at the top of the processing table.

As a preferable scheme of the automatic sand paper changing polishing machine with the dust collection function, the bottom of the dust collection pipes is jointly fixed and communicated with a communicating pipe, two supports are fixedly arranged at the bottom of the processing table, a connecting frame is jointly fixed between the two supports, an exhaust fan is arranged on the connecting frame, a guide pipe is fixedly and communicated with an air inlet of the exhaust fan, one end of the guide pipe, which is far away from the exhaust fan, is fixedly and communicated with the communicating pipe, an exhaust pipe is fixedly and communicated with an exhaust port of the exhaust fan, one end of the exhaust pipe, which is far away from the exhaust fan, is fixedly and communicated with a dust collecting bag, and the dust collecting bag is fixedly and communicated with the exhaust pipe.

As a preferable scheme of the automatic sand paper changing polishing machine with the dust collection function, an extension plate is fixed on one side of the processing table, a travel groove is formed in the extension plate, protruding blocks are connected in a sliding mode in the travel groove, two sides of the protruding blocks are attached to inner walls on two sides of the travel groove, a storage barrel is fixed on the top of each protruding block, a second lug plate is fixed on the top of each extension plate, a second hydraulic cylinder is mounted on each second lug plate, the extension end of each second hydraulic cylinder is fixed with each protruding block, a second guide rod is fixed in each travel groove, each second guide rod penetrates through each protruding block, and each protruding block is located on the outer side of each second guide rod to slide.

As an optimal scheme of the automatic sand paper changing polishing machine with the dust collection function, a processing groove is formed in the processing table, a storage plate is connected in a sliding mode in the processing groove, two first guide rods are fixed on the inner wall of the processing groove, the first guide rods penetrate through the storage plate, and the storage plate is in sliding fit with the outside of the first guide rods.

As an optimal scheme of the automatic sand paper changing polishing machine with the dust collection function, the bottom of the processing table is fixedly provided with two first lug plates, a screw rod is connected between the two first lug plates in a common rotation mode, one side of one first lug plate is provided with a first motor, the output end of the first motor is fixed with one end of the screw rod, the bottom of the object placing plate is fixedly provided with a connecting block, and the screw rod penetrates through the connecting block and is in threaded connection with the connecting block.

The automatic sand paper changing polishing machine with the dust collection function is characterized in that a driven wheel is fixed on the outer side of the hollow column, a rotating shaft is connected with one end of the vertical plate in a rotating mode, a driving wheel is fixed on one end of the rotating shaft, the driving wheel is connected with the driven wheel in a rotating mode through a belt, a second motor is installed on one side of the vertical plate, and one end of the rotating shaft is fixed with the output end of the second motor.

As a preferable scheme of the automatic sand paper changing polishing machine with the dust collection function, one side of the vertical plate is fixedly provided with a U-shaped seat, the inner wall of the U-shaped seat is provided with a first hydraulic cylinder, the extension end of the first hydraulic cylinder is fixedly provided with a disc, the hollow column is slidably connected with a cylindrical rod, the cylindrical rod is rotatably connected with the disc, the inner walls of the two sides of the U-shaped seat are respectively provided with a limit groove, the outer side of the disc is fixedly provided with two limit rods, and the limit rods are slidably matched in the corresponding limit grooves.

As a preferable scheme of the automatic sand paper changing polishing machine with the dust collection function, the control assembly comprises a hollow plate fixed on two sides of a rectangular plate, a movable plate is connected in a sliding manner in the hollow plate, a traction plate is fixed on one side of the movable plate, which is far away from the rectangular plate, a U-shaped plate is fixed on the inner wall of the auxiliary arc plate, the traction plate is connected with the U-shaped plate in a rotating manner, a groove is formed in the hollow plate, a second hinging seat is fixed on one side of the movable plate, which extends into the groove, of the movable plate, L-shaped plates are fixed on two sides of the rectangular frame, a first hinging seat is fixed on one side of the L-shaped plate, which is positioned in the groove, and a first rotating rod is connected in a rotating manner in the first hinging seat and the second hinging seat.

As an optimal scheme of the automatic sand paper changing polishing machine with the dust collection function, the driving assembly comprises a third hinging seat fixed on one side of a rectangular plate, a plurality of fourth hinging seats are fixed on the outer side of the cylindrical rod at equal intervals along the radial direction of the cylindrical rod, and a second rotating rod is connected between the third hinging seat and the fourth hinging seat in a rotating mode.

As an optimal scheme of the automatic sand paper changing polishing machine with the dust collection function, a knife rest is fixed on one L-shaped plate, a blade is fixed on one side of the knife rest, gaps are formed in one of the main arc-shaped plate and the rubber pad, and the blade can penetrate through the gaps.

From the above technical scheme, the application has the following beneficial effects:

When the annular sand paper needs to be replaced, the first hydraulic cylinder stretches to enable the annular sand paper to drive the disc and the cylindrical rod to move, the cylindrical rod drives the second rotating rod to rotate when moving, and the rectangular plate is driven to move into the rectangular frame when the second rotating rod rotates.

And 2, the rectangular plate can drive the hollow plate to move along with the rectangular plate, the positions of the rectangular frame and the L-shaped plate are fixed, so that the L-shaped plate can pull the first rotating rod and drive the first rotating rod to rotate when the hollow plate moves, the moving plate and the pulling plate can be driven to move when the first rotating rod rotates, the auxiliary arc plate is driven to rotate towards the direction close to the rectangular plate when the pulling plate moves, and the auxiliary arc plate is prevented from blocking the movement of the main arc plate.

And 3, when the main arc plate moves for a certain distance, the blade can emerge from the notch, and at the moment, a user only needs to pull the annular sand paper from the direction opposite to the blade, and the annular sand paper can be cut off by the blade, so that the annular sand paper can be conveniently taken down.

And 4, placing the annular sand paper to be replaced into the storage barrel, wherein the second hydraulic cylinder stretches to drive the convex blocks and the storage barrel to move, so that the storage barrel moves to the outer sides of the main arc-shaped plate and the auxiliary arc-shaped plate, then the first hydraulic cylinder contracts to drive the cylindrical rod to move, the cylindrical rod drives the second rotating rod to rotate reversely when moving, the second rotating rod drives the rectangular plate to move away from the hollow column at ease when rotating, the rectangular plate and the main arc-shaped plate are driven to move close to the inner wall of the storage barrel, the L-shaped plate is fixed when the rectangular plate moves, the first rotating rod is driven to rotate, the moving plate and the traction plate are driven to move away from the rectangular plate when the first rotating rod rotates, the main arc-shaped plate and the auxiliary arc-shaped plate form a circular ring after the limiting rod and the inner wall on one side of the limiting groove are propped against, and a rubber pad on the outer sides of the main arc-shaped plate and the inner wall of the annular sand paper are attached, namely the annular sand paper is mounted on the main arc-shaped plate and the auxiliary arc-shaped plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of an automatic sand paper changing polisher with dust collection function according to the present invention;

FIG. 2 is a schematic view of the structure of the main arc plate and the auxiliary arc plate when the main arc plate and the auxiliary arc plate are closed;

FIG. 3 is a schematic view of another view angle structure of an automatic sand paper changing polisher with dust collection function according to the present invention;

FIG. 4 is a schematic view of another view angle structure of an automatic sand paper changing polisher with dust collection function according to the present invention;

FIG. 5 is a schematic view of the structure of FIG. 2 in a split view, according to the present invention;

FIG. 6 is a schematic view of a portion of the structure of FIG. 5 according to another embodiment of the present invention;

FIG. 7 is a schematic diagram of the structure shown in FIG. 6A according to the present invention;

fig. 8 is a schematic diagram of the structure of fig. 2 in a semi-section provided by the present invention.

Description of the drawings 100, main body unit; 101, machining table, 102, vertical plate, 103, hollow column, 104, rectangular frame, 105, rectangular plate, 106, main arc plate, 107, auxiliary arc plate, 108, hinge, 109, rubber pad, 110, machining groove, 111, object placing plate, 112, first guide rod, 113, first ear plate, 114, first motor, 115, connecting block, 116, screw, 117, driven wheel, 118, rotating shaft, 119, driving wheel, 120, belt, 121, second motor, 122, cylindrical rod, 123, hollow plate, 124, moving plate, 125, traction plate, 126, U-shaped plate, 127, groove, 128, L-shaped plate, 129, first hinge seat, 130, second hinge seat, 131, first rotating rod, 132, knife rest, 133, blade, 134, notch, 135, third hinge seat, 136, fourth hinge seat, 137, second rotating rod, 138, U-shaped seat, 139, first hydraulic cylinder, 140, disc, 141, limit groove, 142, limit rod, 200, dust suction cover unit, 201, 202, U-shaped plate, 127, groove, 128, L-shaped plate, 129, first hinge seat, 130, second hinge seat, 131, second hinge seat, 136, second hinge seat, guide tube, 212, guide tube, 210, dust suction cover, extension frame, guide tube, and extension frame.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For one embodiment of the invention, an automatic sand paper changing polisher with a dust collection function is provided, the automatic sand paper changing polisher comprises a main body unit 100 and a dust collection unit 200, the main body unit 100 comprises a processing table 101, a vertical plate 102 is fixed at the top of the processing table 101, a hollow column 103 is rotationally connected in the vertical plate 102, a plurality of rectangular frames 104 are fixed and communicated on the outer side of the hollow column 103 at equal intervals along the radial direction, a rectangular plate 105 is slidably connected in the rectangular frames 104, a main arc plate 106 is fixed on one side of the rectangular plate 105 far away from the hollow column 103, two sides of the main arc plate 106 are respectively connected with a secondary arc plate 107 through hinges 108 in a rotating manner, a plurality of main arc plates 106 and the outer sides of the secondary arc plates 107 are respectively fixed with a rubber pad 109, a plurality of main arc plates 106 and a plurality of secondary arc plates 107 can form circular rings for supporting annular sand paper, a driving component for driving the movement of the main arc plates 106 is arranged in the hollow column 103, a control component for controlling the rotation of the secondary arc plates 107 is arranged on the hollow column 105, the control component can be driven to synchronously work when the driving component is in a sliding manner, the rectangular plate 105 comprises a plurality of dust collection covers 201 distributed on the top of the processing table 101, a plurality of dust collection covers 202 are respectively fixed on a plurality of dust collection pipes 201, and a plurality of dust collection pipes are respectively arranged on the dust collection pipes and are correspondingly installed on the dust collection tables 101.

Wherein, an extension plate 211 is fixed on one side of the processing table 101, a travel groove 212 is arranged in the extension plate 211, a bump 213 is connected in a sliding way in the travel groove 212, two sides of the bump 213 are attached to the inner walls of two sides of the travel groove 212, a receiving cylinder 214 is fixed on the top of the bump 213, a second ear plate 216 is fixed on the top of the extension plate 211, a second hydraulic cylinder 215 is arranged on the second ear plate 216, the extension end of the second hydraulic cylinder 215 is fixed with the bump 213, a second guide rod 217 is fixed in the travel groove 212, the second guide rod 217 penetrates through the bump 213, the bump 213 slides outside the second guide rod 217, a processing groove 110 is arranged in the processing table 101, a storage plate 111 is connected in a sliding way in the processing groove 110, two first guide rods 112 are fixed on the inner wall of the processing groove 110, the first guide rods 112 penetrate through the storage plate 111, the object placing plate 111 is in sliding fit outside the first guide rod 112, two first lug plates 113 are fixed at the bottom of the processing table 101, a screw rod 116 is connected between the two first lug plates 113 in a rotating mode, a first motor 114 is installed on one side of one first lug plate 113, the output end of the first motor 114 is fixed with one end of the screw rod 116, a connecting block 115 is fixed at the bottom of the object placing plate 111, the screw rod 116 penetrates through the connecting block 115 and is in threaded connection with the connecting block 115, a driven wheel 117 is fixed at the outer side of the hollow column 103, a rotating shaft 118 is connected in a rotating mode in the vertical plate 102, a driving wheel 119 is fixed at one end of the rotating shaft 118, the driving wheel 119 is connected with the driven wheel 117 in a rotating mode through a belt 120, a second motor 121 is installed on one side of the vertical plate 102, and one end of the rotating shaft 118 is fixed with the output end of the second motor 121.

It should be noted that, the annular abrasive paper is sleeved outside the main arc plate 106 and the auxiliary arc plate 107, and because the rubber pads 109 are fixed outside the main arc plate 106 and the auxiliary arc plate 107, friction force between the main arc plate 106, the auxiliary arc plate 107 and the annular abrasive paper is increased, when the annular abrasive paper polishing device is used, a workpiece to be polished is mounted on the object placing plate 111, the second motor 121 is started to drive the rotating shaft 118 to rotate, the driving wheel 119 is driven to rotate when the rotating shaft 118 rotates, the driven wheel 117 is driven to rotate through the belt 120 when the driving wheel 119 rotates, the hollow column 103 is driven to rotate when the driven wheel 117 rotates, the hollow column 103 drives the annular abrasive paper outside the main arc plate 106 and the auxiliary arc plate 107 to rotate along with the main arc plate 106, then the first motor 114 is started to drive the screw rod 116 to rotate, the connecting block 115 is driven to reciprocate when the screw rod 116 rotates, and the object placing plate 111 and the workpiece on the object placing plate 111 reciprocate along with the connecting block 115 is driven to polish the annular abrasive paper.

In addition, the bottoms of the dust collection pipes 202 are jointly fixed and communicated with a communicating pipe 203, two supports 209 are fixedly arranged at the bottom of the processing table 101, a connecting frame 210 is jointly fixed between the two supports 209, an exhaust fan 204 is installed on the connecting frame 210, a conduit 205 is fixedly and communicated with an air inlet of the exhaust fan 204, one end of the conduit 205, which is far away from the exhaust fan 204, is fixedly and communicated with the communicating pipe 203, an exhaust pipe 206 is fixedly and communicated with an exhaust port of the exhaust fan 204, one end of the exhaust pipe 206, which is far away from the exhaust fan 204, is fixedly and communicated with a dust collecting bag 207, and a dust exhaust pipe 208 is fixedly and communicated with the dust collecting bag 207.

When the workpiece is polished, the suction fan 204 is started, so that the polished dust is sucked into the dust hood 201 and then conveyed from the dust suction pipe 202, the communication pipe 203 and the discharge pipe 206 into the dust collection bag 207 to be collected, in addition, the dust discharge pipe 208 is connected with a pipe cap in a threaded manner, and when the dust in the dust collection bag 207 needs to be cleaned, the pipe cap on the dust discharge pipe 208 is opened, so that the dust in the dust collection bag 207 can be poured out.

It should be noted that, in this embodiment, the second motor 121, the first hydraulic cylinder 139, the exhaust fan 204, the first motor 114, and the second hydraulic cylinder 215 are all conventional devices that are purchased in the market and known to those skilled in the art, and may be selected or customized according to actual needs, in this patent, we only use them, but do not improve the structure and function thereof, and the setting mode, the installation mode and the electrical connection mode thereof, for those skilled in the art, only need to perform debugging operations according to the requirements of the usage specification, and will not be repeated herein, and the second motor 121, the first hydraulic cylinder 139, the exhaust fan 204, the first motor 114, and the second hydraulic cylinder 215 are all provided with control switches matched with them, and the installation positions of the control switches are selected according to the actual use requirements, so that the operators can perform operation control conveniently.

In addition, a U-shaped seat 138 is fixed on one side of the riser 102, a first hydraulic cylinder 139 is installed on the inner wall of the U-shaped seat 138, a disc 140 is fixed at the extension end of the first hydraulic cylinder 139, a cylindrical rod 122 is connected in a sliding manner in the hollow column 103, the cylindrical rod 122 is rotationally connected with the disc 140, limit grooves 141 are formed in the inner walls of two sides of the U-shaped seat 138, two limit rods 142 are fixed on the outer sides of the disc 140, and the limit rods 142 are in sliding fit in the corresponding limit grooves 141.

Specifically, the control assembly includes the hollow slab 123 that is fixed in on the rectangular slab 105 both sides, the hollow slab 123 sliding connection has movable plate 124, one side that movable plate 124 kept away from rectangular slab 105 is fixed with traction plate 125, vice arc 107 inner wall is fixed with U template 126, traction plate 125 and U template 126 rotate and connect, set up recess 127 in the hollow slab 123, one side that movable plate 124 extends to in the recess 127 is fixed with second articulated seat 130, rectangular frame 104 both sides all are fixed with L template 128, one side that L template 128 is located in recess 127 is fixed with first articulated seat 129, joint rotation is connected with first bull stick 131 in first articulated seat 129 and the second articulated seat 130.

Further, the driving assembly comprises a third hinging seat 135 fixed on one side of the rectangular plate 105, a plurality of fourth hinging seats 136 are fixed on the outer side of the cylindrical rod 122 along the radial direction of the third hinging seat 135 at equal intervals, a second rotating rod 137 is connected between the third hinging seat 135 and the fourth hinging seat 136 in a rotating mode, a knife rest 132 is fixed on one L-shaped plate 128, a knife blade 133 is fixed on one side of the knife rest 132, gaps 134 are formed in one main arc-shaped plate 106 and the rubber pad 109, and the knife blade 133 can penetrate through the gaps 134.

When the annular sand paper needs to be replaced, the first hydraulic cylinder 139 stretches to enable the disc 140 to move, the cylindrical rod 122 is driven to move when the disc 140 moves, the second rotary rod 137 is driven to rotate when the cylindrical rod 122 moves, the rectangular plate 105 is driven to move towards the inside of the rectangular frame 104 when the second rotary rod 137 rotates, the main arc plate 106 is enabled to be free from tightening the annular sand paper, namely the annular sand paper is loosened from the main arc plate 106, the annular sand paper is convenient to replace, when the rectangular plate 105 drives the main arc plate 106 to move towards the direction close to the hollow column 103, the movement of the rectangular plate 105 drives the hollow plate 123 to move along with the main arc plate 106, the rectangular frame 104 and the L-shaped plate 128 are fixed, when the hollow plate 123 moves, the L-shaped plate 128 pulls the first rotary rod 131, the first rotary rod 131 rotates, the moving plate 124 is pulled when the first rotary rod 131 drives the moving plate 124 to move, and the pulling plate 125 moves towards the direction close to the rectangular plate 105 when the moving plate 124, namely the main arc plate 105 drives the auxiliary arc plate 107 to move towards the main arc plate 105, and the main arc plate 103 moves towards the direction close to the main arc plate 103, and the main arc plate 107 can be prevented from moving towards the main arc plate 106 when the main arc plate 106 is prevented from moving towards the main arc plate 107;

When the main arc plate 106 moves a distance, the blade 133 overflows from the notch 134, at this moment, the user only needs to pull annular sand paper from the direction opposite to the blade 133, annular sand paper can be cut off by the blade 133, thereby the annular sand paper is conveniently taken down, then the annular sand paper needing to be replaced is placed in the storage barrel 214, at this moment, the second hydraulic cylinder 215 stretches to enable the lug 213 and the storage barrel 214 to move, the storage barrel 214 moves to the outer side of the main arc plate 106 and the auxiliary arc plate 107, then the first hydraulic cylinder 139 contracts to enable the cylindrical rod 122 to move in the direction far away from the storage barrel 214, at this moment, the second rotary rod 137 is driven to reversely rotate when the circular rod 122 moves, the rectangular plate 105 is driven to move away from the hollow column 103 in a relief mode, and then the rectangular plate 105 is driven to move towards the inner wall close to the storage barrel 214, and the L-shaped plate 128 is fixed when the rectangular plate 105 moves, and then the first rotary rod 131 rotates, the moving plate 124 and the pulling plate 125 move, and further the auxiliary arc plate 107 move towards the direction far away from the main arc plate 106, the inner wall 142 is formed by the annular sand paper, the annular arc plate 107 is formed when the circular arc plate 106 is formed, the circular arc plate 107 is formed, the circular plate 107 is formed, and the circular sand paper is not attached to the circular arc plate 106, the circular plate is formed, the circular plate 106 is formed, and the circular plate is attached to the circular arc plate is located on the inner side of the circular arc plate 106, and the circular plate is attached to the circular plate is far from the circular arc plate 106.

The present invention is not limited in any way by the above-described preferred embodiments, but is not limited to the above-described preferred embodiments, and any person skilled in the art will appreciate that the present invention can be embodied in the form of a program for carrying out the method of the present invention, while the above disclosure is directed to equivalent embodiments capable of being modified or altered in some ways, it is apparent that any modifications, equivalent variations and alterations made to the above embodiments according to the technical principles of the present invention fall within the scope of the present invention.

Claims

1. Automatic sand paper machine trades with dust absorption function, its characterized in that includes:

The main body unit (100) comprises a processing table (101), wherein a vertical plate (102) is fixedly arranged at the top of the processing table (101), a hollow column (103) is rotationally connected to the vertical plate (102), a plurality of rectangular frames (104) are fixedly arranged at the outer sides of the hollow column (103) along the radial direction at equal intervals and communicated with the hollow column, a rectangular plate (105) is slidably connected to the rectangular frames (104), a main arc plate (106) is fixedly arranged on one side, far away from the hollow column (103), of the rectangular plate (105), auxiliary arc plates (107) are rotationally connected to two sides of the main arc plates (106) through hinges (108), rubber pads (109) are fixedly arranged on the outer sides of the main arc plates (106) and the auxiliary arc plates (107), a plurality of main arc plates (106) and the auxiliary arc plates (107) can form a circular ring to be used for supporting abrasive paper, a driving assembly for driving the main arc plates (106) to move is arranged in the hollow column (103), and a control assembly for controlling the rotation of the auxiliary arc plates (107) is arranged on the rectangular plate (105), and the driving assembly can drive the auxiliary arc plates (107) to work synchronously;

The dust collection unit (200) comprises a plurality of dust collection covers (201) distributed on the top of the processing table (101), a plurality of dust collection pipes (202) are fixed in the processing table (101), and the dust collection covers (201) are respectively arranged on the corresponding dust collection pipes (202).

2. The automatic sand paper changing polisher with dust collection function according to claim 1, wherein the bottoms of the dust collection pipes (202) are jointly fixed and communicated with a communicating pipe (203), two supports (209) are fixedly arranged at the bottom of the processing table (101), a connecting frame (210) is jointly fixed between the two supports (209), an exhaust fan (204) is mounted on the connecting frame (210), a guide pipe (205) is fixedly arranged on an air inlet of the exhaust fan (204) and communicated with the air inlet, one end of the guide pipe (205) far away from the exhaust fan (204) is fixedly arranged on an air outlet of the exhaust fan (204) and communicated with a discharge pipe (206), one end of the discharge pipe (206) far away from the exhaust fan (204) is fixedly arranged on and communicated with a dust collecting bag (207), and the dust collecting bag (207) is fixedly arranged on and communicated with the dust discharge pipe (208).

3. The automatic sand paper changing polishing machine with the dust collection function according to claim 1, wherein an extension plate (211) is fixed on one side of the processing table (101), a travel groove (212) is formed in the extension plate (211), protruding blocks (213) are connected in the travel groove (212) in a sliding mode, two sides of the protruding blocks (213) are attached to inner walls of two sides of the travel groove (212), a containing cylinder (214) is fixed on the top of the protruding blocks (213), a second lug plate (216) is fixed on the top of the extension plate (211), a second hydraulic cylinder (215) is mounted on the second lug plate (216), an extension end of the second hydraulic cylinder (215) is fixed with the protruding blocks (213), a second guide rod (217) is fixed in the travel groove (212), the second guide rod (217) penetrates through the protruding blocks (213), and the protruding blocks (213) are located on the outer sides of the second guide rod (217) in a sliding mode.

4. The automatic sand paper changing polishing machine with the dust collection function according to claim 1, wherein a processing groove (110) is formed in the processing table (101), a storage plate (111) is connected in the processing groove (110) in a sliding mode, two first guide rods (112) are fixed on the inner wall of the processing groove (110), the first guide rods (112) penetrate through the storage plate (111), and the storage plate (111) is in sliding fit with the outside of the first guide rods (112).

5. The automatic sand paper changing polishing machine with dust collection function according to claim 4, wherein two first lug plates (113) are fixed at the bottom of the processing table (101), a screw rod (116) is connected between the two first lug plates (113) in a rotating mode, one side of each first lug plate (113) is provided with a first motor (114), the output end of each first motor (114) is fixed with one end of each screw rod (116), a connecting block (115) is fixed at the bottom of each storage plate (111), and each screw rod (116) penetrates through each connecting block (115) and is in threaded connection with each connecting block (115).

6. The automatic sand paper changing polishing machine with the dust collection function according to claim 1, wherein a driven wheel (117) is fixed on the outer side of the hollow column (103), a rotating shaft (118) is rotationally connected to the vertical plate (102), a driving wheel (119) is fixed to one end of the rotating shaft (118), the driving wheel (119) and the driven wheel (117) are rotationally connected through a belt (120), a second motor (121) is installed on one side of the vertical plate (102), and one end of the rotating shaft (118) is fixed to the output end of the second motor (121).

7. The automatic sand paper changing polisher with a dust collection function according to claim 1, characterized in that a U-shaped seat (138) is fixed on one side of the vertical plate (102), a first hydraulic cylinder (139) is installed on the inner wall of the U-shaped seat (138), a disc (140) is fixed at the extending end of the first hydraulic cylinder (139), a cylindrical rod (122) is slidably connected in the hollow column (103), the cylindrical rod (122) is rotationally connected with the disc (140), limit grooves (141) are formed in the inner walls of two sides of the U-shaped seat (138), two limit rods (142) are fixed on the outer side of the disc (140), and the limit rods (142) are slidably matched in the corresponding limit grooves (141).

8. The automatic sand paper changing polisher with dust collection function according to claim 7, wherein the control assembly comprises a hollow plate (123) fixed on two sides of the rectangular plate (105), a movable plate (124) is slidably connected in the hollow plate (123), a traction plate (125) is fixed on one side, far away from the rectangular plate (105), of the movable plate (124), a U-shaped plate (126) is fixed on the inner wall of the auxiliary arc plate (107), the traction plate (125) and the U-shaped plate (126) are rotationally connected, a groove (127) is formed in the hollow plate (123), a second hinging seat (130) is fixed on one side, extending into the groove (127), of the movable plate (124) is fixed with an L-shaped plate (128), a first hinging seat (129) is fixed on one side, located in the groove (127), of the L-shaped plate (128), and a first rotating rod (131) is rotationally connected in the first hinging seat (129) and the second hinging seat (130).

9. An automatic sand paper changing polisher with dust collection function according to claim 8 wherein the drive assembly comprises a third hinge base (135) fixed to one side of the rectangular plate (105), a plurality of fourth hinge bases (136) are fixed to the outer side of the cylindrical rod (122) at equal intervals in the radial direction, and a second rotating rod (137) is connected between the third hinge base (135) and the fourth hinge bases (136) in a co-rotating manner.

10. The automatic sand paper changing polisher with dust collection function according to claim 9, wherein one of the L-shaped plates (128) is fixed with a knife rest (132), one side of the knife rest (132) is fixed with a blade (133), one of the main arc-shaped plates (106) and the rubber pad (109) are provided with notches (134), and the blade (133) can penetrate through the notches (134).