CN110723348B

CN110723348B - Two-sided pad pasting device

Info

Publication number: CN110723348B
Application number: CN201911062763.8A
Authority: CN
Inventors: 邵倩倩
Original assignee: Individual
Current assignee: Shenzhen Federal Reserve Technology Co ltd
Priority date: 2019-11-03
Filing date: 2019-11-03
Publication date: 2021-03-30
Anticipated expiration: 2039-11-03
Also published as: JP2021070319A; JP6961142B2; CN110723348A

Abstract

The invention provides a double-sided film pasting device, and belongs to the technical field of mechanical equipment. It has solved the inconsistent, and the lower problem of efficiency of current pad pasting. This two-sided pad pasting device, including frame and pad pasting platform, the pad pasting bench is equipped with the registration roller respectively and presss from both sides tight seat, the pad pasting breach has been seted up on the pad pasting bench, the below of pad pasting platform is rotated and is connected with lower rotating turret, it is connected with the upper rotating turret to rotate in the top of pad pasting platform, upper rotating turret and lower rotating turret all are relative with the pad pasting breach, it is connected with down the pad pasting roller to rotate on the lower rotating turret, it is connected with the pad pasting roller to rotate on the upper rotating turret, the pad pasting bench still is equipped with flexible arm, be connected with the film-pushing roller on the flexible arm, the pad pasting bench side still is equipped with the film pressing piece, and the film pressing piece can cut off the film part that is pulled out by the film-pushing roller with the film part in pressing from both sides tight seat when the film is pressed from both sides. This two-sided pad pasting device can carry out the pad pasting to the inside and outside side of dome, improves pad pasting quality and efficiency.

Description

Two-sided pad pasting device

Technical Field

The invention belongs to the technical field of mechanical devices, and relates to a double-sided film pasting device.

Background

The round cover mainly comprises a round cover such as a barrel cover and the like, which are usually mutually overlapped and leaned in the delivery transportation process, if the barrel body and the barrel body are mutually sleeved, the round cover and the round cover are mutually overlapped to reduce the space occupation, however, the side surfaces of the round caps which are attached to each other can generate relative extrusion and friction in the transportation and carrying processes, which easily causes the side surfaces of the round caps to be scratched, so that the side surfaces of the round caps need to be firstly coated before leaving a factory, for customers with lower requirements, only one side of the round cover needs to be pasted with the film, a layer of film is arranged between any two side surfaces after the round covers are mutually overlapped to play a protection role, for customers with higher requirements, the films are pasted on the two side surfaces of the round cover, therefore, the round cover is protected when taken out, and the existing film sticking of the round cover is usually carried out manually, so that the film sticking quality on different round covers is inconsistent, and the efficiency is lower.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a double-sided film sticking device which can stick films on the inner side and the outer side of a round cover, so that the film sticking quality and efficiency are improved.

The purpose of the invention can be realized by the following technical scheme: a double-sided film sticking device comprises a rack and a film sticking table arranged on the rack, and is characterized in that the film sticking table is respectively provided with a positioning roller for positioning a film winding drum sleeve and a clamping seat capable of clamping the edge of a pulled film end part, a circular film sticking notch is formed in the film sticking table, the clamping seat is positioned on one side of the film sticking notch, the positioning roller is positioned above the clamping seat, the lower part of the film sticking table is rotatably connected with a lower rotating frame, the upper part of the film sticking table is rotatably connected with an upper rotating frame, the upper rotating frame and the lower rotating frame are both opposite to the film sticking notch, a lower film sticking roller capable of abutting against the lower side surface of a circular cover is rotatably connected on the lower rotating frame, an upper film sticking roller is rotatably connected on the upper rotating frame, the film sticking table is also provided with a telescopic arm capable of stretching along the horizontal direction, and the telescopic arm is horizontally connected with a film pushing roller, and push away the membrane roller and can follow in proper order when flexible arm stretches out and press from both sides between the tight seat and go up between revolving rack and the lower revolving rack and pass, pad pasting bench side still is equipped with the film pressing piece that can impress the film that pulls out in pressing from both sides tight seat, and the film pressing piece can cut off the film part that is pushed away the membrane roller and pulls out with the film part that presss from both sides in the tight seat when the film is pressed from both sides tight seat, be equipped with in the frame and drive last revolving rack and press from both sides the piece decline and make the last pad pasting roll-in to lean on the lifting member on the side on the dome, still be equipped with in the frame and drive the synchronous pivoted driving piece of revolving rack and lower revolving rack.

When the film is pasted, a film winding drum is sleeved and positioned on a positioning roller, the end part of the film is pulled out and clamped in a clamping seat below, namely the pulled-out part of the film is blocked between a film pushing roller and a film pasting gap, the film pushing roller can push the film when a telescopic arm extends out, the lower end of the film is clamped and positioned by the clamping seat, so the film on the film winding drum is pulled out, after the film pushing roller passes through an upper rotating frame and a lower rotating frame, the film forms a double-layer structure between the upper rotating frame and the lower rotating frame, namely a layer of film between the clamping seat and the film pushing roller and a layer of film between the film pushing roller and the film winding drum, and a distance is formed between the film winding drum and the clamping seat, so a distance is formed between the two layers of films, at the moment, a worker puts a round cover between the two layers of films, presses the round cover and the film pasting gap on the lower film pasting roller concentrically, and presses the round cover, then the flexible arm drives the film pushing roller to retract, the lifting piece drives the upper rotating frame and the film pressing piece to descend, the film passes through the lower portion of the film pressing piece, the film pressing piece can continue to pull out the film on the film winding drum until the upper film and the film winding drum are connected, the upper film and the film winding drum are pressed into the clamping seat to be clamped tightly, the film pressing piece cuts the upper film, the upper film is separated from the film winding drum, the edge of the end portion of the pulling-out end of the film winding drum is clamped tightly by the clamping seat to be used for next circular cover film pasting, the upper film roller abuts against the upper side face of the circular cover when the upper rotating frame descends, then the driving piece drives the upper rotating frame and the lower rotating frame to rotate synchronously, the upper film roller and the lower film roller push the two layers of films flat, the two layers of films are adhered to the side faces of the two sides of the circular cover, the film pasting is more, and the film pasting.

In foretell two-sided pad pasting device, press from both sides tight seat including all being long banding fixed splint and moving splint, fixed splint with move splint all with registration roller parallel arrangement, fixed splint are fixed on pad pasting bench side, all linked firmly the guide post perpendicularly on the both ends side of fixed splint, the both ends of moving splint all are fixed with the uide bushing, two the uide bushing slides the cover respectively and establishes on two guide posts, and two guide posts all stretch out the uide bushing, stretch out the end on the guide post and all overlap and be equipped with clamping spring, this clamping spring's one end is used in moving splint, and the other end is used in the tip of guide post, moves splint and presses on fixed splint under clamping spring's effect, and moves and forms the mouth that presss from both sides up between splint and the fixed splint. Decide the splint and move the splint and all be rectangular form, film tip border is pressed from both sides tightly between deciding the splint and moving the splint along length direction to make the film part of being pulled out be in and level the state of expanding.

In foretell two-sided pad pasting device, pad pasting bench side is improved level and is linked firmly two horizontal cylinders, two horizontal cylinders parallel arrangement and towards one side of cutting the membrane breach, press from both sides tight seat and be located between pad pasting breach and the horizontal cylinder, the piston rod of horizontal cylinder is foretell flexible arm, two interval between the flexible arm is greater than the internal diameter of pad pasting breach, and the pad pasting breach is located between two flexible arms when two flexible arms stretch out, the both ends of pushing away the membrane roller rotate respectively and connect between the free end of two flexible arms. The telescopic arm can stretch out from the two sides of the film sticking notch, so that the film covers the whole film sticking notch.

In foretell two-sided pad pasting device, two the free end of flexible arm all is connected with the link, the link all includes two connecting rods, adjusting bolt and adjusting nut, two the one end of connecting rod is articulated mutually through the round pin axle, adjusting nut's upper end is fixed with the adapter sleeve, rotates the cover on the adapter sleeve and is equipped with the rotating sleeve, and the other end of one of them connecting rod is articulated mutually through the round pin axle with the rotating sleeve, and the other end of another connecting rod is articulated mutually through the round pin axle with adjusting bolt, adjusting bolt vertical setting, and adjusting bolt's lower extreme links firmly with the free end of flexible arm mutually, the adjusting nut spiro union is in adjusting bolt's upper end, push away the membrane roller and have three, three push away the membrane roller and rotate to connect between three pairs of round pin. Have the clearance between the two-layer film, the dome need put into this clearance, and can make enough clearance between the two-layer film through three membrane rollers that push away, makes things convenient for the dome to put into, can adjust two intervals that push away between the membrane roller about simultaneously through adjusting nut, and then adjusts the clearance between the two-layer film to be applicable to the great dome of turn-ups and put into.

In the above-mentioned double-sided film pasting device, the lifting member comprises a lifting cylinder and a lifting plate, the lifting plate is horizontally arranged, the lifting plate is connected to the frame in a vertical sliding manner, the lifting cylinder is fixed to the frame, a piston rod of the lifting cylinder is vertically downward and is fixedly connected with the lifting plate, the upper rotating frame is rotatably connected to the lower side surface of the lifting plate, the film pressing member comprises a long strip-shaped film pressing plate, the film pressing plate is arranged in parallel with the fixed clamping plate, two ends of the upper side surface of the film pressing plate are vertically and fixedly connected with guide rods, the lifting plate is provided with two through holes, the two guide rods respectively upwards penetrate through the two through holes, the upper end of each guide rod is circumferentially provided with a propping convex edge, the guide rods are further sleeved with film pressing springs, the upper ends of the film pressing springs are propped against the lower side surface of the lifting plate, the lower ends of the film pressing springs are propped against the upper side surface of, and the film pressing plate is lower than the upper rotating frame. The press mold board is less than last rotating bracket, consequently the lifter plate descends and go up rotating bracket and dome and lean on before leaning on, and the press mold board can be impressed the film of pulling out in advance and press from both sides tight in pressing from both sides the tight seat, again push away the adhesion to the two-layer film of cutting off after realizing the clamp of pulling out the film, cut, avoid producing to interfere film reel etc..

In foretell two-sided pad pasting device, have the protruding edge of press mold and cutter along length direction respectively on the downside of press mold board, the protruding edge of press mold is relative with pressing from both sides the mouth, the border is the blade of cockscomb structure under the cutter, the lower border on the protruding edge of press mold is less than the lower border of cutter, move and seted up the branch grooving along length direction on the splint upper flank, work as the protruding edge of press mold can imbed when press mold board descends and move between splint and the set plate, and in the cutter can imbed the branch grooving, still be equipped with on the press mold board and compress tightly the tensioning rod on moving the splint upper flank, above-mentioned cutter is located between tensioning rod and the protruding edge of press mold. The protruding border of following of pressing mold is less than cutter border down, and consequently the protruding border of pressing mold can be impressed the film before the cutter cuts in advance and move between splint and the solid fixed splint when pressing mold board descends, and then the cutter is cut again, avoids the film directly to break away from the protruding border of pressing mold after cutting, leads to pressing from both sides tight seat and steps up the failure, guarantees the operational reliability.

In foretell two-sided pad pasting device, the equal vertical sliding sleeve that is fixed with in both ends of press mold plate, the last side both ends of tensioning rod all have the traveller perpendicularly, two the traveller slides respectively and pegs graft in two slipcovers, it is equipped with the tensioning spring still to overlap on the traveller, and the upper end of this tensioning spring is fixed on the press mold plate downside, and the lower extreme is fixed on the side on the tensioning rod, the tensioning rod is less than the cutter, and when the protruding edge of press mold was moved between splint and the set plate the tensioning rod can compress tightly on moving the splint upside under the effect of tensioning spring, the protruding both ends along the lower border of press mold all have the push jack that sets up down, and the side of this push jack sets up along the length direction on the protruding edge of press mold, the lower extreme of push jack is less than the tensioning rod, works as the push jack can insert the set plate and move between the splint when the press mold. The film pressing convex edge is also provided with two push sheets which are thin and can be inserted between the movable clamping plate and the fixed clamping plate in advance, at the moment, the movable clamping plate is separated from the fixed clamping plate, the end edge of the originally clamped film loses the clamping force, along with the further descending of the film pressing convex edge, the originally clamped end edge loses the clamping force, the film reel stops rotating, the film is reversely drawn out, so that the end edge of the film is drawn out from the position between the movable clamping plate and the fixed clamping plate, the film is prevented from being repeatedly clamped and cut and accumulated between the fixed clamping plate and the movable clamping plate, but after the film pressing convex edge is embedded between the movable clamping plate and the fixed clamping plate, the film stops being drawn out, namely the distance for drawing the film is only that the end edge of the film is separated from the clamping seat, then the tension rod descends, the end of the upper layer of the film can be pressed on the movable clamping plate, and the film part between the tension rod and the film pressing convex edge, the cutter can cut conveniently.

In the above-mentioned double-sided film sticking device, the upper rotating frame and the lower rotating frame are both in a U-shaped rod shape, the notches of the upper rotating frame face downwards, the two ends of the upper rotating frame are both fixed with upper supports, the two upper film sticking rollers are respectively and rotatably connected on the two upper supports, the two upper film sticking rollers are symmetrically arranged relative to the central line of the film sticking notch, the two opposite ends of the upper film sticking rollers are both inclined upwards, the notches of the lower rotating frame face upwards, the two ends of the lower rotating frame are both fixedly connected with lower supports, the two lower film sticking rollers are respectively and rotatably connected on the two lower supports, the central lines of the two lower film sticking rollers relative to the film sticking notch are symmetrically arranged, the two opposite ends of the lower film sticking rollers are both inclined upwards, the machine frame is rotatably connected with a rotary table under the film sticking notch, the rotary table and the film sticking notch are coaxially arranged, two connecting pipes are vertically arranged on the upper side face of the rotary table, two spliced poles have perpendicularly on the downside of lower rotating turret, two the spliced pole slides respectively and wears to establish in two spliced pipes, still is equipped with buffer spring in the spliced pipe, two under buffer spring's effect the upwards protrusion pad pasting breach of pad pasting roller. When the upper rotating frame descends, the upper film pasting roller can be pressed against the upper side face of the circular cover, the circular cover downwards supports against the lower film pasting roller, so that the lower rotating frame descends, the edge of the flanging of the circular cover abuts against the film pasting table, and the circular cover can be guaranteed to be clamped between the upper film pasting roller and the lower film pasting roller.

In the above double-sided film pasting device, the double-sided film pasting device further comprises two disc-shaped film cutting knives, two connecting plates horizontally arranged are respectively arranged at the outer ends of the two upper supports, the two connecting plates are distributed up and down, a cutter bar penetrates through the two connecting plates along the vertical sliding direction, a U-shaped plate-shaped cutter frame is fixed at the lower end of the cutter bar, the notch of the cutter frame faces downwards, the film cutting cutter is rotationally connected in the cutter frame, the rotating center line of the film cutting knife is arranged along the radial direction of the film sticking gap, the cutter bar is screwed with a limit nut and is also sleeved with a compression spring, the compression spring and the limiting nut are both positioned between the two connecting plates, the upper end of the compression spring is pressed against the lower side surface of the upper connecting plate, the lower end of the compression spring is pressed against the limiting nut, the upper side surface of the film sticking table is provided with a limiting convex edge which is annular and is arranged around the film sticking gap, when the upper rotating frame descends, the film cutting knife can abut against the side face of the film pasting table on the outer side of the limiting convex edge. Rotate the pad pasting in-process at last rotating turret, cut the membrane sword and can cut the film in the spacing protruding outside of following in step to make the film of adhesion on the dome be circular, have regular shape, improve the pad pasting quality, and can adjust the length that the guide arm lower extreme stretches out through limit nut, and then adjust the pressure that the pad pasting roll-in leaned on the back pad pasting sword on the dome, in order to be applicable to the dome of not co-altitude.

In the above double-sided film pasting device, the driving member comprises a driving motor fixed on the frame, the frame is rotatably connected with a transmission shaft, the transmission shaft is vertically arranged, a motor shaft of the driving motor is connected with the transmission shaft, an upper driving belt wheel and a lower driving belt wheel are respectively and fixedly connected on the transmission shaft, the turntable is rotatably connected on the frame through a lower rotating shaft, a lower driven belt wheel is fixedly connected on the lower rotating shaft, the lower driving belt wheel is connected with the lower driven belt wheel through a lower belt, the upper rotating frame is rotatably connected to the lifting plate through an upper rotating shaft, the machine frame is rotatably connected with an upper driven belt wheel, the upper driven belt wheel is connected with the upper driving belt wheel through an upper belt, a central hole is arranged on the upper driven belt wheel, go up pivot upper end and upwards slide and pass the centre bore of last driven pulley, and go up the pivot and pass through spline fit with last driven pulley and realize circumferential location. Go up the pivot and slide the centre bore that passes last driven pulleys to go up the pivot and go up driven pulleys spline fit simultaneously along with the synchronous lift of lifter plate, consequently can carry out the drive rotation through the driving piece, through same driving motor and transmission shaft setting, guarantee to go up the synchronous rotation of rotating turret and lower rotating turret.

Compared with the prior art, the double-sided film pasting device has the following advantages:

1. because the film pushing roller can push the film when the telescopic arm stretches out, the film forms a double-layer structure between the upper rotating frame and the lower rotating frame, after a round cover is placed between two layers of films, the film pressing piece can continue to pull out the film on the film winding drum until the upper layer of film is pressed into the clamping seat to be clamped tightly, the upper layer of film is cut off by the film pressing piece, the upper film roller abuts against the upper side face of the round cover when the upper rotating frame descends, then the driving piece drives the upper rotating frame and the lower rotating frame to synchronously rotate, so that the upper film roller and the lower film roller push the two layers of films flat, the two layers of films are adhered to the side faces of the two sides of the round cover, the films are more regular, and the film adhering quality and efficiency are improved.

2. Because the protruding edge of press mold still has two push pads on, can insert in advance between movable clamp plate and the fixed clamp plate, along with the further decline on the protruding edge of press mold, because the tip border that originally is pressed from both sides tightly loses the clamp force, consequently the film reel stall, and the film is pulled by reverse twitching for take out between driven clamp plate and the fixed clamp plate in film tip border, avoid the film to be clamped repeatedly and cut and accumulate between fixed clamp plate and movable clamp plate.

3. Because rotate pad pasting in-process at last rotating turret, cut the membrane sword and can cut the film in the spacing protruding outside of following in step to make the film that adheres on the dome be circular, have regular shape, improve the pad pasting quality.

Drawings

Fig. 1 is a schematic perspective view of a double-sided film sticking device.

Fig. 2 is a structural plan view of the double-sided film sticking device.

Fig. 3 is a sectional view of the structure at a-a in fig. 2.

Fig. 4 is an enlarged view of the structure at B in fig. 1.

Fig. 5 is an enlarged view of the structure at C in fig. 1.

Fig. 6 is a partial sectional view of the lamination boss when inserted into the holder.

Fig. 7 is an enlarged view of the structure at D in fig. 1.

Fig. 8 is an enlarged view of the structure at E in fig. 3.

Fig. 9 is an enlarged view of the structure at F in fig. 1.

Fig. 10 is a first flow chart of the operation when the film end is clamped by the clamping seat.

Fig. 11 is a second flowchart of the operation when the telescopic arm is extended.

Fig. 12 is a third flowchart of the working process of the round cover when the round cover is placed on the film sticking table.

Fig. 13 is a fourth flowchart of the operation when the film is cut by the cutter.

Fig. 14 is an enlarged view of the structure at G in fig. 13.

FIG. 15 is a fifth flowchart of the operation of the upper and lower pasting rolls pressing against the circular lid.

In the figure, 1, a frame; 11. a positioning roller; 2. a film pasting table; 21. pasting a film gap; 22. a limiting convex edge; 3. a clamping seat; 31. fixing the clamping plate; 311. a guide post; 32. a movable clamping plate; 321. a guide sleeve; 322. cutting grooves; 33. a clamping spring; 34. clamping the opening; 4. a lifting plate; 41. an upper rotating frame; 42. an upper bracket; 421. a connecting plate; 43. a film pasting roller is arranged; 44. an upper rotating shaft; 45. a lifting cylinder; 5. a turntable; 51. a lower rotating frame; 52. a lower bracket; 53. a lower film pasting roller; 54. a connecting pipe; 55. connecting columns; 56. a buffer spring; 57. a lower rotating shaft; 6. a transverse cylinder; 61. a telescopic arm; 62. a film pushing roller; 63. a connecting frame; 631. a connecting rod; 632. adjusting the bolt; 633. adjusting the nut; 634. connecting sleeves; 635. rotating the sleeve; 7. a film pressing plate; 71. a guide bar; 711. abutting against the convex edge; 72. a diaphragm spring; 73. pressing the film to form a convex edge; 74. a cutter; 75. a tension rod; 751. a traveler; 76. a sliding sleeve; 77. tensioning the spring; 78. pushing the sheet; 8. a cutter bar; 81. a tool holder; 82. a film cutter; 83. a limit nut; 84. a compression spring; 9. a drive motor; 91. a drive shaft; 92. an upper drive pulley; 93. an upper driven pulley; 931. a central bore; 94. a belt is arranged; 95. a lower driving pulley; 96. a lower driven pulley; 97. a lower belt; 101. a dome; 102. a film roll; 103. a film.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, a double-sided film pasting device comprises a frame 1 and a film pasting table 2 arranged on the frame 1, wherein a positioning roller 11 for sleeving and positioning a film winding drum 102 and a clamping seat 3 capable of clamping the end edge of a pulled film 103 are respectively arranged on the film pasting table 2, the positioning roller 11 is horizontally arranged on the film pasting table 2, the positioning roller 11 is an existing component capable of positioning the film winding drum 102 and rotating when the film 103 is pulled out, one end of the positioning roller is also provided with a rotary damper capable of increasing the resistance of the rotation of the film winding drum 102 to prevent the film 103 from being excessively pulled out, a circular film pasting gap 21 is arranged on the film pasting table 2, the clamping seat 3 is positioned at one side of the film pasting gap 21, the positioning roller 11 is positioned above the clamping seat 3, a lower rotating frame 51 is rotatably connected below the film pasting table 2, an upper rotating frame 41 is rotatably connected above the film pasting table 2, the upper rotating frame 41 and the lower rotating frame 51 are opposite to the film sticking gap 21, the lower film sticking roller 53 which can be abutted against the lower side surface of the circular cover 101 is rotatably connected on the lower rotating frame 51, the upper film sticking roller 43 is rotatably connected on the upper rotating frame 41, the film sticking table 2 is also provided with a telescopic arm 61 which can be stretched along the horizontal direction, the telescopic arm 61 is horizontally connected with a film pushing roller 62, when the telescopic arm 61 extends out, the film pushing roller 62 can sequentially pass through between the positioning roller 11 and the clamping seat 3 and between the upper rotating frame 41 and the lower rotating frame 51, a film pressing piece which can press the pulled film 103 into the clamping seat 3 is further arranged above the film sticking table 2, when the film 103 is clamped by the clamping seat 3, the film pressing piece can cut off the part of the film 103 pulled out by the film pushing roller 62 from the part of the film 103 in the clamping seat 3, a lifting piece which can drive the upper rotating frame 41 and the film pressing piece to descend and press the upper side surface of the upper film sticking roller 43 on the circular cover 101 is arranged on the frame 1, the frame 1 is further provided with a driving member capable of driving the upper rotating frame 41 and the lower rotating frame 51 to synchronously rotate.

Referring to fig. 4, the clamping seat 3 includes a fixed clamping plate 31 and a movable clamping plate 32 both in a long strip shape, the fixed clamping plate 31 and the movable clamping plate 32 are both arranged in parallel with the positioning roller 11, the fixed clamping plate 31 is fixed on the upper side of the film sticking table 2, the side surfaces of both ends of the fixed clamping plate 31 are vertically and fixedly connected with guide posts 311, both ends of the movable clamping plate 32 are fixed with guide sleeves 321, the two guide sleeves 321 are respectively slidably sleeved on the two guide posts 311, the two guide posts 311 extend out of the guide sleeves 321, the extending ends of the guide posts 311 are respectively sleeved with a clamping spring 33, one end of the clamping spring 33 acts on the movable clamping plate 32, the other end acts on the end of the guide posts 311, the movable clamping plate 32 is pressed against the fixed clamping plate 31 under the action of the clamping spring 33, an upward clamping opening 34 is formed between the movable clamping plate 32 and the fixed clamping plate 31, both the fixed clamping plate 31 and the movable clamping plate 32 are in a long strip shape, the end edge of the film 103 is clamped between the, thereby bringing the portion of the film 103 that is pulled out into a flat developed state. Referring to fig. 5 and 6, the lifting member includes a lifting cylinder 45 and a lifting plate 4, the lifting plate 4 is horizontally disposed, the lifting plate 4 is vertically slidably connected to the frame 1, the lifting cylinder 45 is fixed on the frame 1, a piston rod of the lifting cylinder 45 is vertically downward and fixedly connected to the lifting plate 4, the upper rotating frame 41 is rotatably connected to the lower side surface of the lifting plate 4, the film pressing member includes a strip-shaped film pressing plate 7, the film pressing plate 7 is parallel to the fixed plate 31, two ends of the upper side surface of the film pressing plate 7 are vertically and fixedly connected to guide rods 71, the lifting plate 4 is provided with two through holes, the two guide rods 71 respectively pass through the two through holes upward, an abutting convex edge 711 is circumferentially provided at the upper end of the guide rod 71, a film pressing spring 72 is further sleeved on the guide rod 71, the upper end of the film pressing spring 72 abuts against the lower side surface of the lifting plate 4, and the lower end abuts against the, lean on protruding edge 711 to lean on the lifting plate 4 side under the effect of press mold spring 72 on, and press mold board 7 is less than last rotating turret 41, consequently lifting plate 4 descends and go up rotating turret 41 and before the dome 101 supports by, press mold board 7 can press in advance the film 103 of pulling out press from both sides tight in pressing from both sides tight seat 3, the realization is pulled out the film 103 tight, cut the back and push away the adhesion to two-layer film 103 of cutting off again, avoid producing to interfere to film reel 102 etc.. The lower side surface of the film pressing plate 7 is respectively provided with a film pressing convex edge 73 and a cutter 74 along the length direction, the film pressing convex edge 73 is opposite to the clamping opening 34, the lower edge of the cutter 74 is a serrated cutting edge, the lower edge of the film pressing convex edge 73 is lower than the lower edge of the cutter 74, the upper side surface of the movable clamping plate 32 is provided with a dividing groove 322 along the length direction, the film pressing convex edge 73 can be embedded between the movable clamping plate 32 and the fixed clamping plate 31 when the film pressing plate 7 descends, the cutter 74 can be embedded into the dividing groove 322, the film pressing plate 7 is also provided with a tensioning rod 75 capable of being pressed on the upper side surface of the movable clamping plate 32, the cutter 74 is positioned between the tensioning rod 75 and the film pressing convex edge 73, the lower edge of the film pressing convex edge 73 is lower than the lower edge of the cutter 74, therefore, the film pressing convex edge 73 can press the film 103 into the space between the movable clamping plate 32 and the fixed clamping plate 31 in advance before the cutter 74 cuts when the film pressing plate 7 descends, leading to clamping seat 3 clamping failure and ensuring the working reliability. Sliding sleeves 76 are vertically fixed at both ends of the film pressing plate 7, sliding columns 751 are vertically arranged at both ends of the upper side of a tensioning rod 75, the two sliding columns 751 are respectively inserted in the two sliding sleeves 76 in a sliding manner, a tensioning spring 77 is further sleeved on the sliding columns 751, the upper end of the tensioning spring 77 is fixed on the lower side of the film pressing plate 7, the lower end of the tensioning spring 77 is fixed on the upper side of the tensioning rod 75, the tensioning rod 75 is lower than a cutter 74, the tensioning rod 75 can be pressed on the upper side of the movable clamping plate 32 under the action of the tensioning spring 77 when the film pressing convex edge 73 is embedded between the movable clamping plate 32 and the fixed clamping plate 31, both ends of the lower edge of the film pressing convex edge 73 are provided with downward push plates 78, the side of each push plate 78 is arranged along the length direction of the film pressing convex edge 73, the lower end of each push plate 78 is lower than the tensioning rod 75, the push plates 78 can be inserted between the fixed clamping plate 31 and the movable clamping plate 32 when the film, the two push plates 78 are thin and can be inserted between the movable clamp plate 32 and the fixed clamp plate 31 in advance, at this time, the movable clamp plate 32 is separated from the fixed clamp plate 31, the end edge of the originally clamped film 103 loses the clamping force, with the further descending of the film pressing convex edge 73, the originally clamped end edge loses the clamping force, so the film drum 102 stops rotating, the film 103 is drawn in reverse direction, the end edge of the film 103 is drawn out from between the movable clamp plate 32 and the fixed clamp plate 31, the film 103 is prevented from being repeatedly clamped and cut to be accumulated between the fixed clamp plate 31 and the movable clamp plate 32, but after the film pressing convex edge 73 is embedded between the movable clamp plate 32 and the fixed clamp plate 31, the film 103 stops being drawn, namely the distance that the film 103 is drawn is only enough to make the end edge thereof separate from the clamping seat 3, then the tension rod 75 descends, the end of the upper film 103 can be pressed on the movable clamp plate 32, at this time, the part of the film 103 between the tension rod 75 and the film pressing, facilitating slitting by the cutter 74.

The upper side surface of the film sticking table 2 is horizontally and fixedly connected with two transverse cylinders 6, the two transverse cylinders 6 are arranged in parallel and face one side of the film cutting gap, the clamping seat 3 is positioned between the film sticking gap 21 and the transverse cylinders 6, the piston rod of the transverse cylinder 6 is the telescopic arm 61, the distance between the two telescopic arms 61 is larger than the inner diameter of the film sticking gap 21, when the two telescopic arms 61 extend out, the film sticking gap 21 is positioned between the two telescopic arms 61, the two ends of the film pushing roller 62 are respectively and rotatably connected between the free ends of the two telescopic arms 61, the telescopic arms 61 can extend out from the two sides of the film sticking gap 21, so that the film 103 covers the whole film sticking gap 21, the free ends of the two telescopic arms 61 are both connected with a connecting frame 63, as shown in a combined figure 7, the connecting frame 63 comprises two connecting rods 631, an adjusting bolt 632 and an adjusting nut 633, one end of the two connecting rods 631 is hinged through a pin shaft, a rotating sleeve 635 is rotatably sleeved on the connecting sleeve 634, the other end of one connecting rod 631 is hinged with the rotating sleeve 635 through a pin shaft, the other end of the other connecting rod 631 is hinged with an adjusting bolt 632 through a pin shaft, the adjusting bolt 632 is vertically arranged, the lower end of the adjusting bolt 632 is fixedly connected with the free end of the telescopic arm 61, the adjusting nut 633 is screwed on the upper end of the adjusting bolt 632, the number of the film pushing rollers 62 is three, the three film pushing rollers 62 are rotatably connected between the corresponding three pairs of pin shafts, a gap is formed between the two layers of thin films 103, the round cover 101 needs to be placed in the gap, and three film pushing rollers 62 can ensure that enough gaps are reserved between two layers of films 103, so that the round caps 101 can be conveniently placed, meanwhile, the distance between the upper film pushing roller 62 and the lower film pushing roller 62 can be adjusted through the adjusting nut 633, and then the gap between the two layers of films 103 is adjusted to be suitable for the round cover 101 with larger flanging to be put in.

The upper rotating frame 41 and the lower rotating frame 51 are both in a U-shaped rod shape, the notch of the upper rotating frame 41 faces downwards, the upper support 42 is fixed at both ends of the upper rotating frame 41, the two upper film pasting rollers 43 are respectively and rotatably connected on the two upper supports 42, the two upper film pasting rollers 43 are symmetrically arranged relative to the central line of the film pasting notch 21, the opposite ends of the two upper film pasting rollers 43 are respectively and upwardly obliquely arranged, the notch of the lower rotating frame 51 faces upwards, the lower supports 52 are coaxially and fixedly connected at both ends of the lower rotating frame 51, the two lower film pasting rollers 53 are respectively and rotatably connected on the two lower supports 52, the two lower film pasting rollers 53 are symmetrically arranged relative to the central line of the film pasting notch 21, the opposite ends of the two lower film pasting rollers 53 are both upwardly obliquely arranged, as shown in a combined figure 8, the machine frame 1 is rotatably connected with the rotating disc 5 below the film pasting notch 21, the rotating disc 5 and the film pasting notch 21 are arranged concentrically, the upper side surface of the rotating disc 5 is, two spliced poles 55 have perpendicularly on the downside of lower rotating turret 51, two spliced poles 55 slide respectively and wear to establish in two connecting pipes 54, still be equipped with buffer spring 56 in connecting pipe 54, two lower pad pasting rollers 53 upwards salient pad pasting breach 21 under buffer spring 56's effect, last pad pasting roller 43 can press on the side on the dome 101 when last rotating turret 41 descends, the lower pad pasting roller 53 of dome 101 downward roof pressure for lower rotating turret 51 descends, it leans on to offset with pad pasting platform 2 up to dome 101 turn-ups border, can guarantee this moment that dome 101 is pressed tightly between last pad pasting roller 43 and lower pad pasting roller 53. Referring to fig. 9, the double-sided film pasting device further includes two disc-shaped film cutting knives 82, two horizontally disposed connecting plates 421 are disposed at the outer ends of the two upper supports 42, the two connecting plates 421 are vertically distributed, a knife bar 8 penetrates through the two connecting plates 421 along the vertical sliding direction, a U-shaped plate-shaped knife rest 81 is fixed at the lower end of the knife bar 8, a notch of the knife rest 81 faces downward, the film cutting knives 82 are rotatably connected in the knife rest 81, the rotation center line of the film cutting knives 82 is disposed along the radial direction of the film pasting gap 21, a limit nut 83 is screwed on the knife bar 8, a compression spring 84 is further sleeved on the knife bar 8, the compression spring 84 and the limit nut 83 are both located between the two connecting plates 421, the upper end of the compression spring 84 abuts against the lower side surface of the upper connecting plate 421, the lower end abuts against the compression limit nut 83, a limit protruding edge 22 which is annular and is disposed around the film pasting gap 21 is disposed, the film cutting knife 82 can abut against the side face of the film sticking table 2 on the outer side of the limiting convex edge 22 when the upper rotating frame 41 descends, the film cutting knife 82 can cut the film 103 on the outer side of the limiting convex edge 22 synchronously in the process of rotating the film sticking on the upper rotating frame 41, so that the film 103 adhered to the round cover 101 is circular, the film sticking quality is improved, the length of the lower end of the guide rod extending can be adjusted through the limiting nut 83, the pressure of the film cutting knife 82 after the film sticking roller 43 is pressed on the round cover 101 is adjusted, and the round cover 101 with different heights is suitable for being used. The driving part comprises a driving motor 9 fixed on the frame 1, a transmission shaft 91 is rotatably connected on the frame 1, the transmission shaft 91 is vertically arranged, a motor shaft of the driving motor 9 is connected with the transmission shaft 91, an upper driving pulley 92 and a lower driving pulley 95 are respectively fixedly connected on the transmission shaft 91, the turntable 5 is rotatably connected on the frame 1 through a lower rotating shaft 57, a lower driven pulley 96 is fixedly connected on the lower rotating shaft 57, the lower driving pulley 95 is connected with the lower driven pulley 96 through a lower belt 97, the upper rotating frame 41 is rotatably connected on the lifting plate 4 through an upper rotating shaft 44, an upper driven pulley 93 is rotatably connected on the frame 1, the upper driven pulley 93 is connected with the upper driving pulley 92 through an upper belt 94, a central hole 931 is arranged on the upper driven pulley 93, the upper end of the upper rotating shaft 44 slides upwards to pass through the central hole 931 of the upper driven pulley 93, and the upper rotating shaft 44 and the upper driven, the upper rotating shaft 44 slides through the central hole 931 of the upper driven pulley 93 so as to synchronously ascend and descend along with the ascending and descending plate 4, and meanwhile, the upper rotating shaft 44 is in spline fit with the upper driven pulley 93, so that the upper rotating frame 41 and the lower rotating frame 51 can be driven to rotate through a driving piece, and the synchronous rotation is ensured through the same driving motor 9 and the transmission shaft 91.

When laminating, as shown in fig. 10, the film roll 102 is positioned on the positioning roller 11, the end of the film 103 is pulled out and clamped in the lower clamping seat 3, i.e. the pulled-out part of the film 103 is blocked between the film pushing roller 62 and the laminating gap 21, then as shown in fig. 11, the telescopic arm 61 is extended, the film pushing roller 62 can push the film 103, as the lower end of the film 103 is clamped and positioned by the clamping seat 3, the film 103 on the film roll 102 is pulled out, the film 103 forms a double-layer structure between the upper rotating frame 41 and the lower rotating frame 51, as shown in fig. 12, the round cover 101 is placed between the two layers of films 103, the round cover 101 is pressed on the lower laminating roller 53 concentrically with the laminating gap 21, and the round cover 101 is pressed on the lower layer of film 103, as shown in fig. 13, the telescopic arm 61 is retracted, then the lifting plate 4 is lowered, as shown in fig. 14, the film pressing convex edge 73 is inserted between the movable clamping plate 32 and the fixed clamping, the tension rod 75 presses the film 103 on the movable clamp plate 32, the cutter 74 is inserted into the film cutting groove to cut the film 103, so that the double-layer film 103 between the upper rotating frame 41 and the lower rotating frame 51 is separated from the film roll 102, the end edge of the film roll 102 is clamped by the clamping seat 3 for the next circular cover 101 to be used for film pasting, as shown in fig. 15, the lifting plate 4 continues to descend, the film pressing plate 7 compresses the film pressing spring 72 to keep static, the upper film pressing roller presses the upper film 103 on the upper side surface of the circular cover 101, then the driving piece drives the upper rotating frame 41 and the lower rotating frame 51 to synchronously rotate, so that the upper film pressing roller 43 and the lower film pressing roller 53 push the two layers of films 103 flat, and the two layers of films 103 are adhered on the two side surfaces of the circular cover 101.

Claims

1. The utility model provides a two-sided pad pasting device, includes frame (1) and pad pasting platform (2) of setting in frame (1), its characterized in that, be equipped with respectively on pad pasting platform (2) and be used for film reel (102) cover to establish location positioning roller (11) and can press from both sides tight seat (3) with film (103) tip border that pulls out, set up circular shape pad pasting breach (21) on pad pasting platform (2), press from both sides tight seat (3) and be located one side of pad pasting breach (21), positioning roller (11) are located the top of pressing from both sides tight seat (3), the below of pad pasting platform (2) rotates and is connected with down rotating frame (51), rotates in the top of pad pasting platform (2) and is connected with and rotates frame (41) on, it all is relative with pad pasting breach (21) to go up rotating frame (41) and lower rotating frame (51), rotates and is connected with and to lean on lower pad pasting roller (53) that can lean on the downside of dome (101), an upper film pasting roller (43) is connected to the upper rotating frame (41) in a rotating mode, a telescopic arm (61) capable of stretching in the horizontal direction is further arranged on the film pasting table (2), a film pushing roller (62) is connected to the telescopic arm (61) in the horizontal direction, when the telescopic arm (61) stretches out, the film pushing roller (62) can sequentially penetrate through a position between the positioning roller (11) and the clamping base (3) and a position between the upper rotating frame (41) and the lower rotating frame (51), a film pressing piece capable of pressing a pulled film (103) into the clamping base (3) is further arranged above the film pasting table (2), when the film (103) is clamped by the clamping base (3), the film pressing piece can cut off the part of the film (103) pulled out by the film pushing roller (62) and the part of the film (103) in the clamping base (3), and the upper rotating frame (1) can drive the upper rotating frame (41) and the film pressing piece to descend and enable the upper film pasting roller (43) to be pressed on the upper side face of the circular cover (101), the frame (1) is also provided with a driving piece which can drive the upper rotating frame (41) and the lower rotating frame (51) to synchronously rotate.

2. A double-sided film sticking device according to claim 1, wherein the clamping seat (3) comprises a fixed clamping plate (31) and a movable clamping plate (32) which are both in the shape of long strips, the fixed clamping plate (31) and the movable clamping plate (32) are both arranged in parallel with the positioning rollers (11), the fixed clamping plate (31) is fixed on the upper side surface of the film sticking table (2), guide posts (311) are vertically fixed on the side surfaces of both ends of the fixed clamping plate (31), guide sleeves (321) are fixed on both ends of the movable clamping plate (32), the two guide sleeves (321) are respectively sleeved on the two guide posts (311) in a sliding manner, the two guide posts (311) extend out of the guide sleeves (321), a clamping spring (33) is sleeved on the extending end of the guide posts (311), one end of the clamping spring (33) acts on the movable clamping plate (32), and the other end acts on the end of the guide posts (311), the movable clamping plate (32) is pressed on the fixed clamping plate (31) under the action of the clamping spring (33), and an upward clamping opening (34) is formed between the movable clamping plate (32) and the fixed clamping plate (31).

3. A double-sided film sticking device according to claim 2, wherein the upper side surface of the film sticking table (2) is horizontally and fixedly connected with two transverse cylinders (6), the two transverse cylinders (6) are arranged in parallel and face one side of the film cutting gap, the clamping seat (3) is positioned between the film sticking gap (21) and the transverse cylinders (6), the piston rod of each transverse cylinder (6) is the telescopic arm (61), the distance between the two telescopic arms (61) is larger than the inner diameter of the film sticking gap (21), the film sticking gap (21) is positioned between the two telescopic arms (61) when the two telescopic arms (61) extend out, and the two ends of the film pushing roller (62) are respectively and rotatably connected between the free ends of the two telescopic arms (61).

4. A double-sided film sticking device according to claim 3, wherein the free ends of the two telescopic arms (61) are connected with a connecting frame (63), the connecting frame (63) comprises two connecting rods (631), an adjusting bolt (632) and an adjusting nut (633), one end of each of the two connecting rods (631) is hinged through a pin shaft, the upper end of the adjusting nut (633) is fixed with a connecting sleeve (634), a rotating sleeve (635) is rotatably sleeved on the connecting sleeve (634), the other end of one connecting rod (631) is hinged with the rotating sleeve (635) through a pin shaft, the other end of the other connecting rod (631) is hinged with the adjusting bolt (632) through a pin shaft, the adjusting bolt (632) is vertically arranged, the lower end of the adjusting bolt (632) is fixedly connected with the free end of the telescopic arm (61), the adjusting nut (633) is screwed on the upper end of the adjusting bolt (632), the film pushing rollers (62) are three, and the three film pushing rollers (62) are rotatably connected between the corresponding three pairs of pin shafts.

5. A double-sided film pasting device according to claim 3 or 4, wherein the lifting member comprises a lifting cylinder (45) and a lifting plate (4), the lifting plate (4) is horizontally arranged, the lifting plate (4) is vertically slidably connected to the frame (1), the lifting cylinder (45) is fixed on the frame (1), a piston rod of the lifting cylinder (45) faces downwards and is fixedly connected with the lifting plate (4), the upper rotating frame (41) is rotatably connected to the lower side of the lifting plate (4), the film pressing member comprises a long-strip-shaped film pressing plate (7), the film pressing plate (7) is parallel to the fixed clamping plate (31), two ends of the upper side of the film pressing plate (7) are vertically and fixedly connected with guide rods (71), two through holes are formed in the lifting plate (4), and the two guide rods (71) respectively pass through the two through holes upwards, still circumference has in the upper end of guide bar (71) and leans on protruding edge (711), still the cover is equipped with film pressing spring (72) on guide bar (71), and the upper end of this film pressing spring (72) is supported and is leaned on lifter plate (4) downside, and the lower extreme supports and leans on side on film pressing plate (7), leans on protruding edge (711) to lean on side on lifter plate (4) under film pressing spring's (72) effect, and film pressing plate (7) are less than last rotating turret (41).

6. A double-sided film sticking device as claimed in claim 5, wherein the film sticking plate (7) is provided with a film sticking convex edge (73) and a cutting knife (74) on the lower side surface along the length direction, the film pressing convex edge (73) is opposite to the clamping opening (34), the lower edge of the cutter (74) is a serrated cutting edge, the lower edge of the film pressing convex edge (73) is lower than the lower edge of the cutter (74), a cutting groove (322) is formed in the upper side surface of the movable clamping plate (32) along the length direction, when the film pressing plate (7) descends, the film pressing convex edge (73) can be embedded between the movable clamping plate (32) and the fixed clamping plate (31), the cutter (74) can be embedded into the dividing groove (322), the film pressing plate (7) is also provided with a tension rod (75) which can be pressed on the upper side surface of the movable clamping plate (32), the cutter (74) is positioned between the tension rod (75) and the film pressing convex edge (73).

7. A double-sided film laminating device according to claim 6, wherein sliding sleeves (76) are vertically fixed at both ends of the film laminating plate (7), sliding columns (751) are vertically arranged at both ends of the upper side of the tensioning rod (75), the two sliding columns (751) are respectively inserted into the two sliding sleeves (76) in a sliding manner, a tensioning spring (77) is further sleeved on the sliding columns (751), the upper end of the tensioning spring (77) is fixed on the lower side surface of the film laminating plate (7), the lower end of the tensioning spring is fixed on the upper side surface of the tensioning rod (75), the tensioning rod (75) is lower than the cutter (74), the tensioning rod (75) can be pressed on the upper side surface of the movable clamping plate (32) under the action of the tensioning spring (77) when the film laminating convex edge (73) is embedded between the movable clamping plate (32) and the fixed clamping plate (31), the two ends of the lower edge of the film laminating convex edge (73) are respectively provided with downward-arranged push sheets (78), the side of the push piece (78) is arranged along the length direction of the film pressing convex edge (73), the lower end of the push piece (78) is lower than the tension rod (75), and when the film pressing plate (7) descends, the push piece (78) can be inserted between the fixed clamping plate (31) and the movable clamping plate (32).

8. A double-sided film sticking device according to claim 5, wherein the upper rotating frame (41) and the lower rotating frame (51) are both in the shape of a U-bar, the notch of the upper rotating frame (41) faces downwards, the upper brackets (42) are fixed at both ends of the upper rotating frame (41), the two upper film sticking rollers (43) are respectively and rotatably connected to the two upper brackets (42), the two upper film sticking rollers (43) are symmetrically arranged relative to the center line of the film sticking gap (21), the opposite ends of the two upper film sticking rollers (43) are respectively and upwardly obliquely arranged, the notch of the lower rotating frame (51) faces upwards, the lower brackets (52) are respectively and fixedly connected to both ends of the lower rotating frame (51), the two lower film sticking rollers (53) are respectively and rotatably connected to the two lower brackets (52), the two lower film sticking rollers (53) are symmetrically arranged relative to the center line of the film sticking gap (21), the opposite ends of the two lower film sticking rollers (53) are respectively and upwardly obliquely arranged, frame (1) rotates in the below of pad pasting breach (21) and is connected with carousel (5), and this carousel (5) sets up with the axle center with pad pasting breach (21), carousel (5) are gone up and are gone up two connecting pipes (54) have perpendicularly on the side, two spliced poles (55) have perpendicularly on the downside of lower rotating turret (51), two spliced pole (55) slide respectively and wear to establish in two connecting pipes (54), still are equipped with buffer spring (56) in connecting pipe (54), two lower pad pasting roller (53) salient pad pasting breach (21) that make progress under the effect of buffer spring (56).

9. The double-sided film pasting device according to claim 8, further comprising two disc-shaped film cutting knives (82), wherein the outer ends of the two upper supports (42) are respectively provided with two horizontally arranged connecting plates (421), the two connecting plates (421) are vertically distributed, a knife bar (8) is vertically slidably inserted into the two connecting plates (421), a U-shaped plate-shaped knife rest (81) is fixed at the lower end of the knife bar (8), the notch of the knife rest (81) faces downwards, the film cutting knives (82) are rotatably connected into the knife rest (81), the rotation center lines of the film cutting knives (82) are arranged along the radial direction of the film pasting notch (21), limit nuts (83) are screwed onto the knife bar (8), pressing springs (84) are further sleeved on the knife bar (8), and the pressing springs (84) and the limit nuts (83) are located between the two connecting plates (421), and the upper end of the compression spring (84) is pressed against the lower side surface of the upper connecting plate (421), the lower end of the compression spring is pressed against the limiting nut (83), the upper side surface of the film sticking table (2) is provided with a limiting convex edge (22) which is annular and is arranged around the film sticking gap (21), and when the upper rotating frame (41) descends, the film cutting knife (82) can be pressed against the upper side surface of the film sticking table (2) on the outer side of the limiting convex edge (22).

10. A double-sided film pasting device according to claim 9, wherein the driving member comprises a driving motor (9) fixed on the frame (1), the frame (1) is rotatably connected with a transmission shaft (91), the transmission shaft (91) is vertically arranged, a motor shaft of the driving motor (9) is connected with the transmission shaft (91), the transmission shaft (91) is respectively and fixedly connected with an upper driving pulley (92) and a lower driving pulley (95), the rotary table (5) is rotatably connected on the frame (1) through a lower rotating shaft (57), the lower rotating shaft (57) is fixedly connected with a lower driven pulley (96), the lower driving pulley (95) is connected with the lower driven pulley (96) through a lower belt (97), the upper rotating frame (41) is rotatably connected on the lifting plate (4) through an upper rotating shaft (44), the frame (1) is rotatably connected with an upper driven pulley (93), this go up driven pulley (93) and last driving pulley (92) are connected through last belt (94), center hole (931) have been seted up on going up driven pulley (93), go up pivot (44) upper end upwards slide and pass center hole (931) of going up driven pulley (93), and go up pivot (44) and go up driven pulley (93) and realize circumferential location through the spline fit.