CN218315221U - Paper covering and film covering mechanism for aluminum alloy plate polishing machine - Google Patents

Abstract

The utility model discloses an aluminum alloy plate material burnishing machine is with covering paper and tectorial membrane mechanism includes the tectorial membrane support body, rotates and establishes drive roller, pressure rubber roll, repressing rubber roll, first pressure cylinder, second pressure cylinder, first membrane book fixed axle and the fixed first buffering rubber roll, second buffering rubber roll, cutting device, motor and the power control collection box that set up on the tectorial membrane support body, pressure rubber roll both ends are rotated and are connected with the fine setting slide, and the fine setting slide is along the fixed fine setting slider that is equipped with in vertical direction both sides, the repressing rubber roll set up on the tectorial membrane support body at pressure rubber roll rear along aluminum alloy plate direction of transfer, tectorial membrane support body below perpendicular to aluminum alloy plate direction of transfer be provided with the membrane book mounting bracket, tectorial membrane support body play board position level be provided with the conveying frame, the fixed work platform that is equipped with in conveying frame top, the fixed ladder that is equipped with in work platform one side makes things convenient for workman's platform from top to bottom to possess accurate pressure of mastering the tectorial membrane pressure roller to can realize safe change film book.

Description

Paper covering and film covering mechanism for aluminum alloy plate polishing machine

Technical Field

The utility model relates to a panel treatment facility field, concretely relates to aluminum alloy panel burnishing machine is with covering paper and tectorial membrane mechanism.

Background

Aluminum is widely applied in various industrial fields at present and becomes nonferrous metal with the largest global consumption, and the nonferrous metal has the characteristics and advantages of easiness in processing, good electric and thermal conductivity, small density, high strength, good corrosion resistance and the like, and a cast aluminum alloy with good casting performance or a wrought aluminum alloy with good processing plasticity can be obtained after certain alloy elements are added, so that the aluminum alloy is widely used, and aluminum alloy plates are representative of the nonferrous metal due to increasing demands on the aluminum alloy in the automobile industry, the aerospace industry, the road transportation industry, the electronic industry, the household industry and the like.

After the aluminum alloy plate is machined and formed, the following treatments are carried out according to the industry requirement: sand blasting, polishing, wire drawing, electroplating, spraying and the like, wherein the surface polishing treatment technology is an important means for obtaining a bright mirror surface of an aluminum product, eliminating metal surface defects, beautifying the appearance of the product, ensuring the quality of the product and prolonging the service life. The surface of the aluminum alloy after surface polishing treatment is smooth and flat, and the performances of decoration effect, light reflection, heat reflection, corrosion resistance and the like are correspondingly improved. In order to avoid scratching the surface of the aluminum alloy plate treated by the polishing process, manufacturers generally apply paper covering and film covering mechanisms to the aluminum alloy plate matched with an aluminum alloy plate polishing machine, and directly cover paper or film after polishing by the polishing machine, so that the aluminum alloy plate can be safely stored. The patent with the application number of ' 201821732348X ' discloses ' double-sided film coating equipment for aluminum alloy plates, which comprises two film coating frame bodies, a driving rubber roller, a clamping rubber roller, two clamping cylinders, an upper tensioning rubber roller, an upper opening roller, a lower tensioning rubber roller, a driving device and a synchronous operation device; each film covering frame body is provided with a clamping cylinder from top to bottom, the clamping rubber roll is arranged above the driving rubber roll, and two ends of the clamping rubber roll are respectively connected with piston rods of the two clamping cylinders through synchronous operation devices; the upper opening roll shaft and the lower opening roll shaft are both arranged on one side of the driving rubber roll, the upper opening roll shaft and the lower opening roll shaft are symmetrically arranged along the upper plane of the driving rubber roll, an upper tensioning rubber roll is arranged between the upper opening roll shaft and the clamping rubber roll, a lower tensioning rubber roll is arranged between the lower opening roll shaft and the driving rubber roll, the length of the driving rubber roll is equal to that of the clamping rubber roll, and L =2700-3200mm; "the double-sided laminating equipment has the following defects: 1. the opening degrees of the driving rubber roller and the clamping rubber roller are adjusted by controlling the stroke and the speed of the clamping cylinders at the two ends of the clamping rubber roller so as to adapt to the coating of plates with different thicknesses, but the clamping force is not controlled in place, bubbles generated by the coating break a film or directly damage an aluminum alloy plate when the force is too large, and the coating is uneven and has bubbles when the force is too small; 2. the upper unwinding shaft and the lower unwinding shaft are both arranged on one side of the driving rubber roller, and have a certain height from the working face, so that the film roll is extremely inconvenient to replace, dangerous hidden dangers exist, and the labor cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aluminum alloy panel burnishing machine is with covering paper and tectorial membrane mechanism possesses the pressure of accurate grasp tectorial membrane pressure roller to can realize that the safe change film is rolled up, solve the problem among the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a paper covering and film covering mechanism for an aluminum alloy plate polishing machine comprises a film covering frame body, a driving roller, a pressure rubber roller, a repressing rubber roller, a first pressure cylinder, a second pressure cylinder, a first film roll fixing shaft, a first buffering rubber roller, a second buffering rubber roller, a cutting device, a motor, an air pump system and a power control integrated box, wherein the driving roller, the pressure rubber roller, the repressing rubber roller, the first pressure cylinder, the second pressure cylinder, the first film roll fixing shaft, the first buffering rubber roller, the second buffering rubber roller, the cutting device, the motor, the air pump system and the power control integrated box are rotatably arranged on the film covering frame body, the power control integrated box comprises a power switch integrated control unit and a PLC integrated control unit, one end of the driving roller is connected with a kinetic energy output end of the motor through a chain but not limited to the chain, the motor is electrically connected with the PLC integrated control unit, two ends of the pressure rubber roller are rotatably connected with a fine adjustment sliding seat, the fine setting slide is along the fixed fine setting slider that is equipped with in vertical direction both sides, the fixed supporting fine setting slide rail that is equipped with is in order to guarantee that two fine setting slides can stably do and slide from top to bottom on the tectorial membrane support body of fine setting slider both sides, it sets up on the tectorial membrane support body at pressure rubber roll rear along aluminium alloy plate direction of transfer to reply the rubber roll, the fixed scroll fixed axle that is equipped with on the tectorial membrane support body of first film book fixed axle one side, the scroll fixed axle is on a parallel with first film book fixed axle, tectorial membrane support body below middle part perpendicular to aluminium alloy plate direction of transfer is provided with the film and rolls up the mounting bracket, it is provided with the transmission frame to go out board position level at the tectorial membrane support body, the fixed work platform that is equipped with in transmission frame top, work platform one side is fixed and is equipped with the ladder.

Further, a first pressure cylinder is fixedly arranged on the fine adjustment sliding seat, a first shaft seat, a first pressure slide rail and a lead screw seat are fixedly arranged on the outer side face of the film covering frame body, a piston rod of the first pressure cylinder is fixedly connected with the first shaft seat, the first pressure slide rail is vertically and symmetrically arranged on two sides of the first shaft seat, the first shaft seat is respectively and rotatably connected with two ends of the pressure rubber roller, first pressure chutes matched with the first pressure slide rail are symmetrically arranged on two sides of the first shaft seat, the lead screw seat is arranged on the fine adjustment sliding seat on the inner side of the film covering frame body, the lead screw seat is provided with fine adjustment lead screws in the vertical direction and is rotatably connected with the lead screw seat, the fine adjustment lead screws are horizontally and fixedly provided with motor supporting beams above the film covering frame body above the pressure rubber roller, the motor supporting beams and the pressure rubber roller are arranged on a vertical face, a worm gear stepping motor is fixedly arranged in the middle of the motor, speed reducers are fixedly arranged at two ends of the motor supporting beams, two ends of the worm gear stepping motor supporting beams are respectively and rotatably connected with the speed reducers, the fine adjustment lead screws penetrate through the speed reducers and are rotatably connected with the speed reducers, and the fine adjustment lead screws are driven by the speed reducers to move up and down, and down the whole fine adjustment sliding seat.

Furthermore, two ends of the re-pressing rubber roll are rotatably connected with a second shaft seat, second pressure sliding grooves are symmetrically formed in two sides of the second shaft seat, a second pressure sliding rail is fixedly arranged on the film covering frame body at a position corresponding to the second pressure sliding grooves, a second pressure air cylinder is fixedly arranged on the outer side face of the film covering frame body above the second pressure sliding rail, and a piston rod of the second pressure air cylinder is fixedly connected with the second shaft seat.

Further, the tectorial membrane support body is horizontal to be set firmly spacing in the position that corresponds the membrane book mounting bracket, and spacing contains two spacing slide rails, side spacing axle and spacing axis, and spacing slide rail is on a parallel with the fixed setting of spacing horizontal axis and has the certain distance, for the removal of membrane book mounting bracket provides the space, and the vertical fixed side spacing axle that is equipped with is gone up to the spacing of spacing slide rail one end outside, and the vertical fixed spacing axis that is equipped with is gone up to the spacing of the other end.

Further, the mounting bracket is rectangular shape support body is rolled up to the membrane, including the handle, the fixed axle is rolled up to the second membrane, the gyro wheel, the guide pulley connecting plate, side draw-in groove and spacing groove, the fixed mounting bracket one end of rolling up at the membrane is established to the handle, the fixed axle is rolled up to the second membrane is fixed on the support body of rolling up the mounting bracket at the membrane along the horizontal direction parallel, the gyro wheel is fixed to be established at membrane book mounting bracket below both ends, the guide pulley connecting plate is horizontal fixed respectively and establishes four edges of mounting bracket and correspond with spacing slide rail position at the membrane book, fixed surface is equipped with the guide pulley and cooperates when making the membrane book mounting bracket do with tectorial membrane support body relative movement with spacing slide rail under the guide pulley connecting plate, the side draw-in groove is seted up on the guide pulley connecting plate of the handle one side of mounting bracket is rolled up to the membrane, the spacing groove is seted up on the mounting bracket is rolled up to the membrane of relative handle one end, spacing groove and spacing axis cooperation.

Further, the side spacing axle is bolt structure, has the nut handle at side draw-in groove top spiral connection, rolls up the mounting bracket and removes established operating position when the membrane, and side draw-in groove is gone into to side spacing axle card, and the vertical removal of mounting bracket is rolled up to swivel nut handle cooperation side spacing axle restriction membrane.

Furthermore, the limiting center shaft is of a bolt structure, a nut handle is spirally connected to the position above the limiting groove, when the film roll mounting frame moves to a set working position, the limiting groove is clamped into the limiting center shaft, and the nut handle is rotated to be matched with the limiting shaft on the side to limit the transverse movement of the film roll mounting frame.

The utility model has the advantages as follows:

1. the utility model provides a pressure rubber roll both ends are rotated and are connected with the fine setting slide, through the removal of worm gear step motor control fine setting lead screw to drive the fine setting slide and reciprocate, the pressure rubber roll is through the work height of first air cylinder adjustment tectorial membrane in order to be suitable for the aluminum alloy plate tectorial membrane of different thickness, and fine setting lead screw drives the fine setting slide and is in order to control the pressure of pressure rubber roll tectorial membrane during operation more accurately, the tectorial membrane effect is better, avoids damaging the plate body;

2. the utility model provides a fixed workstation that is equipped with in membrane book mounting bracket and conveying frame top makes things convenient for the workman to change the film book, has reduced staff's labour and the danger when changing, improves work efficiency.

3. The device provided by the utility model not only have the pressure rubber roll, the compound moulding roller at pressure rubber roll rear in addition, after the pressure rubber roll was accomplished the tectorial membrane press mold, cutting device cut, has the phenomenon that the tectorial membrane border did not cover, the tectorial membrane bubble, rolls through compound moulding roller secondary again, has effectively solved the incomplete and problem of tectorial membrane bubble of border tectorial membrane.

Drawings

Fig. 1 is a schematic view of the overall structure of a paper covering and film covering mechanism for an aluminum alloy plate polishing machine according to the present invention;

fig. 2 is a schematic structural view of part a of the present invention;

FIG. 3 is a schematic structural view of part B of the present invention;

fig. 4 is a front view of the fine adjustment slide seat provided by the present invention;

fig. 5 is a rear view of a film roll mounting frame provided by the present invention;

fig. 6 is a side view of the film roll mounting frame provided by the present invention.

The figures are labeled as follows: 1. laminating a frame body; 2. a drive roller; 3. a pressure rubber roll; 31. fine tuning the sliding seat; 311. finely adjusting the sliding block; 312. a first shaft seat; 313. a first pressure slide rail; 314. a lead screw seat; 315. a first pressure chute; 316. fine adjustment of a lead screw; 4. re-pressing the rubber roller; 41. a second shaft seat; 411. a second pressure chute; 412. a second pressure slide rail; 5. a first pressure cylinder; 6. a second pressure cylinder; 7. a first film roll fixing shaft; 8. a first buffer rubber roll; 9. a second buffer rubber roll; 10. a cutting device; 11. finely adjusting the slide rail; 12. a film roll mounting rack; 121. a handle; 122. a second film roll fixing shaft; 123. a roller; 124. a guide wheel connecting plate; 125. a side clamping groove; 126. a limiting groove; 127. a guide wheel; 128. a nut handle; 13. a limiting frame; 131. a limiting slide rail; 132. a side limit shaft; 133. limiting the middle shaft; 14. a transmission frame; 15. a working platform; 16. a step; 17. a motor support beam; 18. a worm gear step motor; 19. a speed reducer; 20. the scroll is fixed axle.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from the embodiments described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not limited to the embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The examples are as follows:

please refer to fig. 1, which shows a paper covering and film covering mechanism for an aluminum alloy plate polishing machine, comprising a film covering frame body 1, a driving roller 2 rotatably disposed on the film covering frame body 1, a pressure rubber roller 3, a re-pressing rubber roller 4, a first film roll fixing shaft 7, a first buffer rubber roller 8 and a second buffer rubber roller 9 rotatably connected to the film covering frame body 1 through a bolt fixing bearing, and a first pressure cylinder 5, a second pressure cylinder 6, a cutting device 10, a motor, an air pump system, and a power control integrated box fixed on the film covering frame body 1 through bolts, wherein the power control integrated box comprises a power switch integrated and a PLC integrated control unit, one end of the driving roller 2 is connected to a kinetic energy output end of the motor through a chain but not limited thereto, the motor is electrically connected to the PLC integrated control unit, two ends of the pressure rubber roller 3 of the cutting device 10 are rotatably connected to a fine tuning slide 31, fine tuning slides 311 are fixed to the fine tuning slide 31 along two vertical side bolts, the fine adjustment slide rails 11 are fixed on the film covering frame body 1 at two sides of the fine adjustment slide block 311 by bolts to ensure that the two fine adjustment slide bases 31 can stably slide up and down, the re-pressing roller 4 is arranged on the film covering frame body 1 behind the pressing roller 3 along the conveying direction of the aluminum alloy plate, two ends of the re-pressing roller 4 are respectively connected with the second shaft base 41 in a rotating way, the two sides of the second shaft base 41 are symmetrically provided with second pressure slide grooves 411, a second pressure slide rail 412 is fixed on the film covering frame body 1 by bolts corresponding to the second pressure slide grooves 411, a second pressure cylinder 6 is fixed on the outer side surface of the film covering frame body 1 above the second pressure slide rail 412 by bolts, a piston rod of the second pressure cylinder 6 is screwed and detachably connected with the second shaft base 41, the second pressure cylinder 6 is connected with an air pump system by a conduit, a paper roll fixing shaft 20 is fixed on the film covering frame body 1 at one side of the first film roll fixing shaft 7, scroll fixed axle 20 is on a parallel with first membrane book fixed axle 7, when needing to cover paper packing aluminum alloy plate in directional business, can cover the paper operation at the scroll of scroll fixed axle 20 installation, 1 below middle part perpendicular to aluminum alloy plate direction of transfer of tectorial membrane support body is provided with membrane book mounting bracket 12, 1 play board position level at tectorial membrane support body is provided with driving frame 13, the fixed work platform 14 that is equipped with in driving frame 13 top, 14 one side of work platform is fixed and is equipped with ladder 15, when needing to change membrane book and scroll, make things convenient for the operation workman to change the book on work platform 14, reduce the operation height, guarantee safety.

Referring to fig. 2, 3 and 4, the fine tuning slide carriage 31 is fixedly provided with a first pressure cylinder 5, a first pressure slide rail 313 and a lead screw seat 314, and is slidably provided with a first shaft seat 312, the first pressure cylinder 5 is bolted on the fine tuning slide carriage 31 on the outer side surface of the film covering frame body 1, a piston rod of the first pressure cylinder 5 is fixedly connected with the first shaft seat 312, the first pressure slide rails 313 are vertically and symmetrically arranged on two sides of the first shaft seat 312, the first shaft seat 312 is respectively rotatably connected with two ends of the pressure rubber roller 3, first pressure slide grooves 315 used in cooperation with the first pressure slide rail 313 are symmetrically arranged on two sides of the first shaft seat 312, the lead screw seat 314 is positioned on the fine tuning slide carriage 31 on the inner side of the film covering frame body 1, the lead screw seat 314 is vertically provided with a fine tuning lead screw 316 rotatably connected with the lead screw seat 314, the fine tuning lead screw 316 and the motor support beam 16 are horizontally welded on the film covering frame body 1 above the pressure rubber roller 3, the motor supporting beam 16 and the pressure rubber roll 3 are arranged on a vertical surface, a worm and gear stepping motor 17 is fixed at the middle position of the motor supporting beam 16 through bolts, the worm and gear stepping motor 17 is electrically connected with the PLC integrated control unit, speed reducers 18 are fixed at two ends of the motor supporting beam 16 through bolts, two ends of a worm of the worm and gear stepping motor 17 are respectively rotatably connected with the speed reducers 18, a fine adjustment lead screw 316 penetrates through the speed reducers 18 and is rotatably connected with the speed reducers 18, when the working pressure of the pressure rubber roll 3 needs to be adjusted, the PLC integrated control unit sends an instruction to start the worm and gear stepping motor 17, the worm and gear stepping motor 17 drives the speed reducers 18 to rotate through rotating the worm, the fine adjustment lead screw 316 is driven by the speed reducers 18 to move up and down, and therefore the whole fine adjustment sliding base 31 is driven to move up and down to adjust the pressure when the film of the pressure rubber roll 3 is covered.

Refer to fig. 5, the tectorial membrane support body 1 that fig. 6 shows is horizontal to be set firmly spacing 13 on the position that corresponds film book mounting bracket 12, spacing 13 contains two spacing slide rails 131, side spacing axle 132 and spacing axis 133, spacing slide rail 131 is on a parallel with the fixed setting of spacing 13 horizontal axis and has the certain distance, for the removal of film book mounting bracket 12 provides the space, vertical fixed side spacing axle 132 that is equipped with on the spacing of spacing slide rail one end outside, vertical fixed spacing axis 133 that is equipped with on the spacing 13 of the other end.

The film roll mounting rack 12 is a strip-shaped rack body and comprises a handle 121, a second film roll fixing shaft 122, rollers 123, guide wheel connecting plates 124, side edge clamping grooves 125 and limiting grooves 126, the handle 121 is fixedly arranged at one end of the film roll mounting rack 12, the second film roll fixing shaft 122 is horizontally and parallelly fixed on the rack body of the film roll mounting rack 12, the rollers 123 are fixedly arranged at two ends below the film roll mounting rack, the guide wheel connecting plates 124 are respectively and horizontally and fixedly arranged at four corners of the film roll mounting rack 12 and correspond to the limiting slide rails 131, guide wheels 127 are fixedly arranged on the lower surfaces of the guide wheel connecting plates 124 and are matched with the limiting slide rails 131, so that the friction force is smaller when the film roll mounting rack 12 moves relative to the film roll rack body 1, the side edge clamping grooves 125 are arranged on the guide wheel connecting plates 124 at one side of the handle 121 end of the film roll mounting rack 12, the side edge clamping grooves 125 are matched with the side limiting shafts 132, the limiting grooves 126 are arranged on the film roll mounting rack 12 at one end opposite to the handle 121, and are matched with the limiting middle shafts 133, the side limiting shaft 132 is of a bolt structure, a nut handle 128 is spirally connected to the upper portion of the side clamping groove 125, when the film roll mounting frame 12 moves to a set working position, the side limiting shaft 132 is clamped into the side clamping groove 125, the rotating nut handle 128 is matched with the side limiting shaft 132 to limit the longitudinal movement of the film roll mounting frame 12, the limiting middle shaft 133 is of a bolt structure, the nut handle 128 is spirally connected to the upper portion of the limiting groove 126, when the film roll mounting frame 12 moves to the set working position, the limiting middle shaft 133 is clamped into the limiting groove 126, the rotating nut handle 128 is matched with the side limiting shaft 132 to limit the transverse movement of the film roll mounting frame 12, when a worker needs to replace a film roll of the second film roll fixing shaft 122, the nut handle 128 of the side limiting shaft 132 and the limiting middle shaft 133 is rotated and loosened, the handle 121 is pulled out of the film roll mounting frame 12, the handle 121 is pushed to push the film roll mounting frame 12 into the working position below the film roll body 1 after the film roll is replaced, at this time, the side limiting shaft 132 is just clamped into the side clamping groove 125, the limiting middle shaft 133 is just clamped into the limiting groove 126, and then the locking nut handle 128 is rotated to fix the relative position of the film roll mounting frame 12 and the film covering frame body 1.

In summary, the following steps: the utility model discloses have the pressure of accurate grasp tectorial membrane pressure roller, the tectorial membrane effect is better, avoids damaging the plate body simultaneously, rolls through the secondary of compound moulding rubber roll, has effectively solved the incomplete and problem of tectorial membrane bubble of boundary tectorial membrane to can realize safe change film book, reduce staff's labour and the danger when changing, improve work efficiency.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, it will be obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides an aluminum alloy plate material burnishing machine is with covering paper and tectorial membrane mechanism, includes the tectorial membrane support body, rotates drive roller, pressure rubber roll, compound pressure rubber roll, first pressure cylinder, second pressure cylinder, first membrane book fixed axle and the fixed first buffering rubber roll, second buffering rubber roll, cutting device, motor, air pump system and the power control collection box that sets up on the tectorial membrane support body, its characterized in that: pressure rubber roll both ends are rotated and are connected with the fine setting slide, and the fine setting slide is fixed along vertical direction both sides and is equipped with the fine setting slider, and the fixed fine setting slide rail that is equipped with forms a complete set is slided about guaranteeing that two fine setting slides can stably do on the tectorial membrane support body of fine setting slider both sides, the repressing rubber roll set up on the tectorial membrane support body at pressure rubber roll rear along aluminium alloy plate direction of transfer, first membrane roll up the fixed scroll fixed axle that is equipped with on the tectorial membrane support body of fixed axle one side, the scroll fixed axle is on a parallel with first membrane roll fixed axle, tectorial membrane support body below middle part perpendicular to aluminium alloy plate direction of transfer be provided with the membrane and roll up the mounting bracket, go out the board position level at the tectorial membrane support body and be provided with the transmission frame, the fixed work platform that is equipped with in transmission frame top, work platform one side is fixed and is equipped with the ladder.

2. The aluminum alloy plate polishing machine paper and film covering mechanism as recited in claim 1, wherein: the fine adjustment sliding seat is fixedly provided with a first pressure cylinder, a first pressure slide rail, a lead screw seat and a first shaft seat in a sliding manner, the first pressure cylinder is fixedly arranged on the fine adjustment sliding seat on the outer side surface of the film covering frame body, a piston rod of the first pressure cylinder is fixedly connected with the first shaft seat, the first pressure slide rail is vertically and symmetrically arranged on two sides of the first shaft seat, the first shaft seat is respectively and rotatably connected with two ends of a pressure rubber roll, first pressure slide grooves matched with the first pressure slide rail are symmetrically arranged on two sides of the first shaft seat, the lead screw seat is arranged on the upper surface of the fine adjustment sliding seat on the inner side of the film covering frame body, a fine adjustment lead screw is arranged on the lead screw seat in the vertical direction and rotatably connected with the lead screw seat, a motor support beam is horizontally and fixedly arranged on the film covering frame body above the pressure rubber roll, the motor support beam and the pressure rubber roll are arranged on a vertical plane, a worm gear stepping motor is fixedly arranged in the middle position of the motor support beam, two ends of the motor support beam are fixedly provided with a worm gear stepping motor, two ends of the worm gear stepping motor support beam, two worm ends of the worm gear stepping motor are respectively and rotatably connected with a speed reducer, the fine adjustment lead screw penetrates through the speed reducer and is rotatably connected with the speed reducer, the fine adjustment lead screw is driven by the fine adjustment sliding seat to move up and down under the fine adjustment sliding seat, thereby driving the fine adjustment sliding seat to drive the fine adjustment sliding seat.

3. The aluminum alloy plate polishing machine paper and film covering mechanism as recited in claim 1, wherein: two ends of the re-pressing rubber roll are rotatably connected with a second shaft seat, second pressure sliding grooves are symmetrically formed in two sides of the second shaft seat, a second pressure sliding rail is fixedly arranged on the film covering frame body at a position corresponding to the second pressure sliding grooves, a second pressure air cylinder is fixedly arranged on the outer side face of the film covering frame body above the second pressure sliding rail, and a piston rod of the second pressure air cylinder is fixedly connected with the second shaft seat.

4. The aluminum alloy plate polishing machine paper and film covering mechanism as recited in claim 1, wherein: tectorial membrane support body the position that corresponds the membrane book mounting bracket improved level and transversely set firmly spacing, spacing contains two spacing slide rails, side spacing axle and spacing axis, spacing slide rail is on a parallel with the fixed setting of spacing horizontal axis and has a certain distance, for the removal of membrane book mounting bracket provides the space, spacing in the spacing of spacing slide rail one end outside on the vertical fixed side spacing axle that is equipped with, the spacing of the other end on the vertical fixed spacing axis that is equipped with.

5. The aluminum alloy plate polishing machine paper and film covering mechanism as recited in claim 1, wherein: the membrane roll up the mounting bracket be rectangular shape support body, roll up fixed axle, gyro wheel, guide pulley connecting plate, side draw-in groove and spacing groove including handle, second membrane, the handle fixed establish at the membrane and roll up mounting bracket one end, second membrane roll up the fixed axle and fix on the support body that the mounting bracket was rolled up to the membrane along the horizontal direction parallel, the gyro wheel fixed establish at membrane roll up mounting bracket below both ends, the guide pulley connecting plate respectively the horizontal fixation establish at four edges of membrane roll up mounting bracket and correspond with spacing slide rail position, fixed surface is equipped with guide pulley and spacing slide rail cooperation under the guide pulley connecting plate and makes the membrane roll up the mounting bracket do with tectorial membrane support body relative movement when frictional force is littleer, the side draw-in groove set up on the guide pulley connecting plate of the handle end one side of membrane roll up the mounting bracket, the spacing groove set up on the membrane roll up mounting bracket of relative handle one end, spacing groove and spacing axis cooperation.

6. The aluminum alloy plate polishing machine paper and film covering mechanism as recited in claim 5, wherein: the side spacing axle be bolt structure, have the nut handle at side draw-in groove top spiral connection, roll up the mounting bracket and remove established operating position when the membrane, side draw-in groove is gone into to side spacing axle card, the longitudinal movement of mounting bracket is rolled up to swivel nut handle cooperation side spacing axle restriction membrane.

7. The aluminum alloy plate polishing machine paper and film covering mechanism as recited in claim 5, wherein: the limiting center shaft is of a bolt structure, a nut handle is spirally connected to the upper portion of the limiting groove, when the film roll mounting frame moves to a set working position, the limiting center shaft is clamped into the limiting groove, and the nut handle is rotated to be matched with the limiting shaft on the side to limit the transverse movement of the film roll mounting frame.

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