CN212922117U - Film pasting mechanism - Google Patents

Abstract

The utility model discloses a film sticking mechanism, which comprises a feeding conveying line and an attaching conveying line, wherein the feeding conveying line and the attaching conveying line are connected through a feeding manipulator, the film sticking machine is also provided with a film tearing module and a film covering module, and the film covering module is arranged between the film tearing module and the attaching conveying line; the feeding conveying line and the attaching conveying line are parallel; the utility model discloses an attached transfer chain with the cooperation operation of tectorial membrane module realizes that the diaphragm is from waiting the roll extrusion of tectorial membrane screen one end to the other end, finally realizes the tectorial membrane operation, prevents to produce the bubble at the tectorial membrane in-process, is favorable to improving machining efficiency and quality.

Description

Film pasting mechanism

Technical Field

The utility model relates to a laminating machine technical field, concretely relates to pad pasting mechanism.

Background

At present, in order to prevent a screen of an electronic product, such as a mobile phone and a display, from being scratched and to have waterproof and dustproof functions, a protective film is generally attached to a screen of the mobile phone or the display. In the past, manual operation is mostly adopted for the operation of film sticking, so that the working efficiency is low, and the accuracy of film sticking is low.

With the development of science and technology, various automatic film sticking machines are also available on the market. These automatic film sticking machines each have a suction head for sucking the film sheet. In the suction head structure, the diaphragm is generally horizontally sucked and horizontally attached, namely, the suction head attaches the whole surface of the diaphragm to the screen at one time, so that bubbles are easily generated between the diaphragm and the screen in the film attaching process, and the efficiency is low.

In view of the above-mentioned drawbacks, the authors of the present invention have finally obtained the present invention through long-term research and practice.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defects, the technical scheme adopted by the utility model is that a film sticking mechanism is provided, which comprises a feeding conveying line and an attaching conveying line, wherein the feeding conveying line and the attaching conveying line are connected through a feeding manipulator; the feeding conveying line and the attaching conveying line are parallel.

The preferred, attached transfer chain includes horizontal support frame, removal subassembly and attached platform, the removal subassembly includes a pair of parallel arrangement's attached linear guide and sets up attached slider on the attached linear guide, attached slider with the fixed setting of attached platform, attached linear guide with the fixed setting of horizontal support frame, attached platform passes through attached linear guide with attached slider freely slides along the horizontal direction.

The preferred, the removal subassembly still includes attached motor, attached lead screw and attached connecting block, attached motor is fixed to be set up on the horizontal support frame, attached lead screw passes through the fixed setting of mount pad and is in on the horizontal support frame, attached lead screw with attached motor output shaft, attached lead screw with attached connecting block threaded connection, attached connecting block is fixed to be set up on the attached platform.

Preferably, the attaching platform is a vacuum adsorption plate, and the upper end face of the attaching platform is provided with a plurality of first adsorption holes for adsorbing the screen.

Preferably, the upper end face of the attaching platform is further provided with a screen sensor for sensing whether the screen is placed on the attaching platform or not.

The preferred, the tectorial membrane module includes adjusting part and rolls attaches the head, adjusting part includes first straight line regulating part, second straight line regulating part, first straight line regulating part with second straight line regulating part all sets up to sharp module, roll and attach the head and pass through second straight line regulating part with first straight line regulating part is connected, first straight line regulating part passes through the mount setting and is in attached transfer chain top, second straight line regulating part with first straight line regulating part sets up perpendicularly, first straight line regulating part is along the perpendicular to the direction level control of attached transfer chain the position of second straight line regulating part, second straight line regulating part is followed the direction of transportation of attached transfer chain is adjusted roll and is attached the horizontal position of head.

Preferably, the roll attaching head comprises a roll pressing part and an adsorption part, the roll pressing part is fixedly arranged on the adsorption part, the adsorption part is connected with the second linear adjusting part through a third linear adjusting part, and the third linear adjusting part can adjust the vertical heights of the roll pressing part and the adsorption part.

Preferably, the adsorption part comprises a first connecting plate, a second connecting plate and a mounting plate, the first connecting plate and the second connecting plate are vertically connected, the first connecting plate is fixedly arranged on the third linear adjusting part and is movably connected with the mounting plate through a first rotating shaft, the first connecting plate and the mounting plate can rotate around the first rotating shaft, a first lifting cylinder is arranged on the second connecting plate, a telescopic rod of the first lifting cylinder is slidably connected with a movable block through a second rotating shaft, and the second connecting plate and the movable block can rotate around the second rotating shaft; the mounting plate is provided with a movable groove, and the movable block is limited in the movable groove and can freely move along the movable groove in the movable groove.

Preferably, the bottom of the mounting plate is provided with a film adsorption plate, and the lower end face of the film adsorption plate is provided with a plurality of second adsorption holes for adsorbing the diaphragm.

Preferably, rolling portion sets up the tip of mounting panel, rolling portion includes gyro wheel, alignment jig and fixing base, the gyro wheel passes through the fixed setting of roller seat and is in the alignment jig lower extreme, the gyro wheel can wind self axis free rotation, the alignment jig with the fixing base passes through the second and promotes the cylinder connection, the fixing base is fixed to be set up on the mounting panel, through the second promotes the cylinder and adjusts the gyro wheel with relative position between the membrane adsorption plate.

Compared with the prior art, the beneficial effects of the utility model reside in that: 1, the utility model realizes automatic alignment placing, film sticking, accumulation and collection through the mutual cooperation of the feeding conveying line, the attaching conveying line and the discharging conveying line, and completes the whole set of operation of film covering, and the work efficiency is high; 2, the arrangement of the placing part can realize the overlapping and the transportation of a plurality of trays, thereby realizing the automatic stacking transportation and being more intelligent; and 3, the rolling head is structurally arranged, so that bubbles are prevented from being generated in the film laminating process, and the processing efficiency and quality are improved.

Drawings

FIG. 1 is a perspective view of the structure of the laminator;

FIG. 2 is a structural plan view of the laminator;

fig. 3 is a structural view of the placing section;

FIG. 4 is a structural view of the attaching conveyor line;

FIG. 5 is a structural view of the membrane module;

fig. 6 is a structural view of the roll attaching head.

The figures in the drawings represent:

1-a feed conveyor line; 2, attaching a conveying line; 3-a discharge conveying line; 4-a feeding manipulator; 5-a lower disc manipulator; 6-a blanking manipulator; 7-a film tearing module; 8-a film covering module; 9-a placement section; 21-a moving assembly; 22-attaching the platform; 23-screen sensor; 81-a first linear adjustment; 82-a second linear adjustment; 83-roll attachment head; 84-a third linear adjustment; 85-a first lift cylinder; 86-a second lift cylinder; 87-a film adsorption plate; 91-lifting a support frame; 92-a bracket; 93-a lifting motor; 94-lifting screw rod; 95-weight sensor; 96-lifting linear guide rail; 97-lifting slide block; 831-first connecting plate; 832-a second connection plate; 833-mounting the plate; 834-a first rotating shaft; 835-second rotating shaft; 836-active block; 837-a movable groove; 838-roller; 839-an adjusting frame; 840-fixed seat.

Detailed Description

The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1 and 2, fig. 1 is a structural perspective view of the laminator; FIG. 2 is a structural plan view of the laminator; laminating machine includes feeding transfer chain 1, attached transfer chain 2 and ejection of compact transfer chain 3, feeding transfer chain 1 with connect through material loading manipulator 4 between the attached transfer chain 2, feeding transfer chain 1 with ejection of compact transfer chain 3 connects through lower wall manipulator 5, attached transfer chain 2 with ejection of compact transfer chain 3 connects through unloading manipulator 6. The laminating machine still is provided with and tears membrane module 7 and tectorial membrane module 8, tectorial membrane module 8 sets up tear membrane module 7 with between the attached transfer chain 2.

The feeding conveying line 1 conveys trays loaded with screens to be coated, the feeding mechanical arm 4 moves the screens to be coated on the trays to the attached conveying line 2, the lower disc mechanical arm 5 moves the trays without the screens to be coated to the discharging conveying line 3, and the operation of coating is waited to be completed. Tear membrane module 7 and provide the diaphragm for the screen, tectorial membrane module 8 connects to get tear membrane module 7 and to being located screen on the attached transfer chain 2 carries out the tectorial membrane operation, the screen that unloading manipulator 6 will accomplish the tectorial membrane removes extremely on ejection of compact transfer chain 3's the tray, be equipped with and accomplish the tectorial membrane screen the tray passes through ejection of compact transfer chain 3 sees off to realize automatic counterpoint put get, the pad pasting, pile up the collection, accomplish the whole set of operation of tectorial membrane, work efficiency is high.

The laminating machine adopts bilayer structure, feed transfer chain 1 with attached transfer chain 2 sets up on the upper strata, ejection of compact transfer chain 3 sets up in the lower floor, feed transfer chain 1 attached transfer chain 2 is parallel, ejection of compact transfer chain 3 sets up feed transfer chain 1 attached transfer chain 2 with one side, simultaneously ejection of compact transfer chain 3 with feed transfer chain 1 attached transfer chain 2 sets up perpendicularly.

Preferably, the film tearing module 7 and the feeding conveying line 1 are respectively arranged on two sides of the attached conveying line 2, and the film tearing module 7 and the film laminating module 8 are arranged on the upper layer.

The laminating machine still includes panorama CCD camera, screen correction CCD camera and membrane correction CCD camera, the panorama CCD camera corresponds feeding transfer chain 1 sets up, is convenient for material loading manipulator 4 treats snatching of tectorial membrane screen on to the tray, the screen is corrected the CCD camera and is corresponded attached transfer chain 2 sets up, the membrane is corrected the CCD camera and is corresponded tectorial membrane module 8 sets up, through the screen correct the CCD camera with the location of CCD camera to screen and diaphragm respectively is corrected to the membrane to be convenient for realize accurate tectorial membrane operation.

Example two

The feeding conveying line 1 comprises a feeding section and a discharging section, an end blocking part is arranged between the feeding section and the discharging section, the end blocking part comprises a blocking cylinder and a blocking head, the blocking head is set to be of a U shape, two ends of the blocking head are respectively provided with an anti-static POM conical wheel, a telescopic rod of the blocking cylinder is fixedly connected with the blocking head, the blocking cylinder can be used for braking the blocking cylinder to lift the blocking head to the upper end face of the feeding section, and therefore the tray is positioned.

The end stop part is through shifting up right behind the stop head on the feeding section the tray is fixed a position, material loading manipulator 4 is right treat on the tray tectorial membrane screen snatch, accomplish and snatch the action back, the control of end stop part block the head and descend, do not have and treat the tectorial membrane screen the tray continue to go out the material section and remove, and pass through on the ejection of compact section lower disc manipulator 5 snatchs and removes extremely on ejection of compact transfer chain 3.

The feeding section and the discharging section adopt independent braking systems, namely, the feeding section and the discharging section can be independently conveyed, so that the multi-station simultaneous operation is facilitated.

EXAMPLE III

The end part of the discharging conveying line 3 close to the feeding conveying line 1 is provided with a placing part 9, as shown in fig. 3, and fig. 3 is a structural view of the placing part; the placing part 9 comprises a lifting support frame 91, a bracket 92 and a sliding assembly, wherein the bracket 92 is fixedly arranged on the lifting support frame 91 through the sliding assembly, the lifting support frame 91 is vertically placed, the sliding assembly comprises a pair of lifting linear guide rails 96 arranged in parallel and a lifting slider 97 arranged on the lifting linear guide rails 96, the lifting slider 97 and the bracket 92 are fixedly arranged, the lifting linear guide rails 96 and the lifting support frame 91 are fixedly arranged, namely, the lifting linear guide rails 96 are vertically placed, and the bracket 92 freely slides in the vertical direction through the lifting linear guide rails 96 and the lifting slider 97.

The sliding assembly further comprises a lifting motor 93, a lifting screw rod 94 and a lifting connecting block, wherein the lifting motor 93 is fixedly arranged on the lifting support frame 91, the lifting screw rod 94 is fixedly arranged on the lifting support frame 91 through a mounting seat, the lifting screw rod 94 is connected with an output shaft of the lifting motor 93, the lifting screw rod 94 is connected with the lifting connecting block in a threaded mode, the lifting connecting block is fixedly arranged on the bracket 92, the lifting connecting block is driven by the lifting motor 93 in a rotating mode to move in the extending direction of the lifting screw rod 94, and the lifting screw rod 94 is vertically arranged, so that the vertical height of the bracket 92 can be freely adjusted.

Generally, the bracket 92 includes a vertically disposed fixing plate and two support rods horizontally and vertically disposed on the fixing plate, preferably, the two support rods are disposed in parallel, and a reinforcing rod is disposed between the two support rods, so that the two support rods are structurally stable.

Preferably, the support rod is provided with a weight sensor 95, the weight of the tray placed on the bracket 92 can be sensed by the weight sensor 95, and the height of the bracket 92 is adjusted according to the weight of the tray, so that the feeding manipulator 6 and the lower disc manipulator 5 can maintain the same height at the position of the placing part 9.

Meanwhile, the lifting support frame 91 can be further provided with a correlation sensor, and the height of the bracket 92 is adjusted through the calibration control of the stacking height of the tray on the bracket 92 by the correlation sensor, so that the blanking manipulator 6 and the lower disc manipulator 5 are ensured to keep the same height at the position of the placing part 9.

When the bracket 92 descends to a certain height, the bottom of the tray at the bottommost end of the bracket 92 is in contact with the discharging conveying line 3, the discharging conveying line 3 is opened at the moment, and a plurality of stacked trays are conveyed out simultaneously, so that automatic stacking and conveying are realized, and the conveying is more intelligent.

Each section of the feeding conveying line 1 and the discharging conveying line 3 comprises two flat belts, the two flat belts are cooperatively conveyed in the same section through a braking part, and the distance between the two flat belts is smaller than the overall dimension of the tray, so that the tray can be placed on the two flat belts at the same time.

The end stop part is arranged between the two flat belts on the feeding section, and the distance between the two support rods on the bracket 92 is smaller than the distance between the two flat belts on the discharging conveying line 3, so that the bracket 92 is convenient to descend to enable the tray to fall on the discharging conveying line 3.

Example four

As shown in fig. 4, fig. 4 is a structural view of the attaching conveying line; attached transfer chain 2 includes horizontal support frame, removal subassembly 21 and attached platform 22, horizontal support frame is fixed to be set up the upper strata of laminating machine, removal subassembly 21 includes that a pair of parallel arrangement's attached linear guide is in with the setting attached slider on the attached linear guide, attached slider with attached platform 22 is fixed to be set up, attached linear guide with horizontal support frame is fixed to be set up, attached platform 22 passes through attached linear guide with attached slider freely slides along the horizontal direction. Preferably, the moving assembly 21 may be configured as a linear module, and the attaching platform 22 is fixedly disposed on the horizontal support frame through the linear module.

Remove subassembly 21 still includes attached motor, attached lead screw and attached connecting block, attached motor is fixed to be set up on the horizontal support frame, attached lead screw passes through the fixed setting of mount pad and is in on the horizontal support frame, attached lead screw with attached motor output shaft, attached lead screw with attached connecting block threaded connection, attached connecting block is fixed to be set up on attached platform 22, through attached motor rotates the drive attached connecting block is followed attached lead screw extending direction removes, thereby realizes attached platform 22's position control.

Generally, attached platform 22 sets up to the vacuum adsorption board, attached platform 22 up end is provided with a plurality of absorption holes, through the vacuum adsorption in absorption holes realizes the fixed effect to the screen.

Preferably, attached platform 22 up end still is provided with screen inductor 23, through screen inductor 23 response whether the screen has been placed on attached platform 22, generally, screen inductor 23 sets up in the response recess of attached platform 22 up end, thereby guarantee attached platform 22 up end is level and smooth.

EXAMPLE five

FIG. 5 is a structural view of the lamination module, as shown in FIG. 5; the lamination module 8 includes an adjustment assembly including a first linear adjustment member 81, a second linear adjustment member 82, the first linear adjuster 81 and the second linear adjuster 82 are each provided as a linear module, the roll attaching head 83 is connected with the first linear adjusting member 81 through the second linear adjusting member 82, the first linear adjusting piece 81 is arranged above the attaching conveying line 2 through a fixing frame, the second linear adjusting piece 82 is arranged perpendicular to the first linear adjusting piece 81, the first linear adjusting member 81 horizontally adjusts the position of the second linear adjusting member 82 in a direction perpendicular to the attaching conveyor line 2, the second linear adjusting member 82 adjusts the horizontal position of the roll attaching head 83 in the transporting direction of the attaching conveyor line 2, thereby realizing the position movement of the roll attaching head 83 between the film tearing module 7 and the attaching conveying line 2.

As shown in fig. 6, fig. 6 is a structural view of the roll attaching head; the roll attaches head 83 and includes roll extrusion portion and absorption portion, roll extrusion portion is fixed to be set up on the absorption portion, absorption portion pass through third straight line regulating part 84 with second straight line regulating part 82 is connected, third straight line regulating part 84 is adjustable roll extrusion portion with the vertical height of absorption portion.

The absorption portion includes first connecting plate 831, second connecting plate 832 and mounting panel 833, first connecting plate 831 with second connecting plate 832 is connected perpendicularly, first connecting plate 831 is fixed to be set up on the third linear actuator 84, just first connecting plate 831 through first axis of rotation 834 with mounting panel 833 swing joint, first connecting plate 831 with mounting panel 833 can wind first axis of rotation 834 rotates, be provided with first lift cylinder 85 on the second connecting plate 832, first lift cylinder 85's telescopic link passes through second axis of rotation 835 and activity piece 836 sliding connection, second connecting plate 832 with activity piece 836 can wind second axis of rotation 835 rotates. The mounting plate 833 is provided with a movable slot 837, and the movable block 836 is restricted in the movable slot 837 and can freely move along the movable slot 837 in the movable slot 837. Specifically, limiting grooves may be formed in inner walls of both sides of the movable groove 837, limiting blocks may be correspondingly formed on the movable block 836, and the limiting blocks may be disposed in the limiting grooves to ensure that the movable block 836 moves linearly along the movable block 836.

Mounting panel 833 bottom sets up membrane adsorption plate 87, the terminal surface is provided with a plurality of absorption holes under the membrane adsorption plate 87, through the vacuum adsorption in absorption hole realizes the fixed effect to the diaphragm.

Through first promotion cylinder 85, it is adjustable the inclination of membrane adsorption plate 87 is convenient for realize the preceding contact of roll extrusion portion and screen to the realization roll extrusion portion is from the roll extrusion tectorial membrane operation of screen one end to the other end, improves the tectorial membrane quality.

The rolling portion is arranged at the end of the mounting plate 833, the rolling portion comprises a roller 838, an adjusting frame 839 and a fixing seat 840, the roller 838 is fixedly arranged at the lower end of the adjusting frame 839 through a roller seat, the roller 838 can freely rotate around the axis of the roller 838, the adjusting frame 839 and the fixing seat 840 are connected through a second lifting cylinder 86, the fixing seat 840 is fixedly arranged on the mounting plate 833, and the relative position between the roller 838 and the film adsorption plate 87 can be adjusted through the second lifting cylinder 86.

To sum up, the laminating machine still includes the controller, the controller with feeding transfer chain 1 attached transfer chain 2 ejection of compact transfer chain 3 material loading manipulator 4 the lower wall manipulator 5 unloading manipulator 6 tear membrane module 7 the tectorial membrane module 8 all connects to multistation operation between each part is controlled. In the placing section 9, the controller is connected to the weight sensor 95 and the lifting motor 93, and is configured to move the carriage 92 downward in accordance with the weight detected by the weight sensor 95.

EXAMPLE six

The utility model discloses a method for using of laminating machine, including the step:

s1, placing the tray loaded with the screen to be coated on the feeding conveying line 1, and positioning the tray by the end blocking part;

s2, the panoramic CCD camera carries out panoramic shooting on the tray, the feeding manipulator 4 moves the screen to be coated in the tray to the attaching platform 22 according to the shooting result of the panoramic CCD camera, the screen to be coated is placed on the attaching platform 22 and is adsorbed and fixed, and the attaching platform 22 moves to a coating station in the direction of the discharging conveying line 3;

s3, the rolling attachment head 83 adsorbs the film on the film tearing module 7, the film is moved to the position above the attachment platform 22, and the position of the screen to be coated and the position of the film provided by the screen correction CCD camera and the film correction CCD camera are adjusted by the adjusting assembly;

s4, the rolling head 83 carries out film coating operation on the screen and the film to be coated; meanwhile, the lower disc manipulator 5 moves the tray without the screen to be coated on the feeding conveying line 1 to the discharging conveying line 3;

s5, moving the attaching platform 22 to the end part close to the discharging conveying line 3, and moving the screen which is subjected to film covering operation to a tray of the discharging conveying line 3 by the blanking manipulator 6;

and S6, repeating the steps S1-S5 until the bottom of the tray at the bottommost end on the bracket 92 is contacted with the discharging conveying line 3, and the discharging conveying line 3 is opened to simultaneously convey a plurality of stacked trays out.

In step S2, the attaching platform 22 moves to an end away from the discharging conveyor line 3 to wait for receiving a screen to be coated.

It should be noted that when the roll-attaching head 83 attaches the film on the film tearing module 7, the second lifting cylinder 86 retracts to make the roller 838 not exceed the position of the film-attaching plate 87, and the film-attaching plate 87 is in a horizontal state to attach and take the film, so that the film is in a natural straight state, and meanwhile, the length of the film-attaching plate 87 is smaller than that of the film, that is, the film at the position corresponding to the roller 838 is in a suspended state.

When the film covering operation of step S4 is performed, the first lifting cylinder 85 retracts to tilt the film adsorption plate 87, the height of the film adsorption plate 87 close to the roller 838 is smaller than the height of the film adsorption plate 87 away from the roller 838, the second lifting cylinder 86 extends, the roller 838 moves downward to contact with the film and further press the film on the screen to be covered, and the film is rolled from one end of the screen to be covered to the other end by the roller 838 through the adjustment movement of the second linear adjusting member 82 and/or the attachment conveyor line 2, so that the film covering operation is finally performed, bubbles are prevented from being generated in the film covering process, and the processing efficiency and the quality are improved.

Meanwhile, in step S6, the bracket 92 moves down according to the weight detected by the weight sensor 95, so that when the blanking manipulator 6 moves the screen on which the film covering operation is completed to the tray of the discharging conveyor line 3, the trays for receiving the screen are all at the same height, which is convenient for the safe placement of the screen.

Specifically, the calculation formula of the descending height a is set according to the weight of a single tray:

where G is the detected weight of the weight sensor 95, G is the weight of a single tray, G' is the screen weight at which the film covering operation is completed, and b is the thickness of a single tray.

The carriage 92 is initially in an initial state, the carriage 92 does not move when a tray without a screen to be coated is placed on the carriage 92, and the carriage 92 moves down after the screen on which the coating operation is completed is placed on the tray. Generally, the control of the movement adjustment of the carriage 92 is accomplished by rounding down the division of G and G + G' by the present calculation.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The film sticking mechanism is characterized by comprising a feeding conveying line and an attaching conveying line, wherein the feeding conveying line and the attaching conveying line are connected through a feeding mechanical arm; the feeding conveying line and the attaching conveying line are parallel.

2. The film sticking mechanism according to claim 1, wherein the sticking conveying line comprises a horizontal support frame, a moving assembly and a sticking platform, the moving assembly comprises a pair of sticking linear guide rails arranged in parallel and a sticking sliding block arranged on the sticking linear guide rails, the sticking sliding block and the sticking platform are fixedly arranged, the sticking linear guide rails and the horizontal support frame are fixedly arranged, and the sticking platform freely slides in the horizontal direction through the sticking linear guide rails and the sticking sliding block.

3. The film sticking mechanism according to claim 2, wherein the moving assembly further comprises an attaching motor, an attaching lead screw and an attaching connecting block, the attaching motor is fixedly arranged on the horizontal support frame, the attaching lead screw is fixedly arranged on the horizontal support frame through a mounting seat, the attaching lead screw is connected with an output shaft of the attaching motor, the attaching lead screw is connected with the attaching connecting block through threads, and the attaching connecting block is fixedly arranged on the attaching platform.

4. The film sticking mechanism as claimed in claim 3, wherein the sticking platform is configured as a vacuum adsorption plate, and the upper end face of the sticking platform is provided with a plurality of first adsorption holes for adsorbing the screen.

5. The film attaching mechanism as claimed in claim 4, wherein a screen sensor for sensing whether a screen is placed on the attaching platform is further provided on the upper end surface of the attaching platform.

6. The film sticking mechanism according to claim 1, wherein the film covering module comprises an adjusting assembly and a roll attaching head, the adjusting assembly comprises a first linear adjusting piece and a second linear adjusting piece, the first linear adjusting piece and the second linear adjusting piece are both arranged into linear modules, the roll attaching head is connected with the first linear adjusting piece through the second linear adjusting piece, the first linear adjusting piece is arranged above the attaching conveying line through a fixing frame, the second linear adjusting piece is arranged perpendicular to the first linear adjusting piece, the first linear adjusting piece horizontally adjusts the position of the second linear adjusting piece in the direction perpendicular to the attaching conveying line, and the second linear adjusting piece horizontally adjusts the horizontal position of the roll attaching head in the conveying direction of the attaching conveying line.

7. The film attaching mechanism according to claim 6, wherein the roll attaching head comprises a rolled portion and a suction portion, the rolled portion is fixedly disposed on the suction portion, the suction portion is connected to the second linear adjuster through a third linear adjuster, and the third linear adjuster can adjust vertical heights of the rolled portion and the suction portion.

8. The film sticking mechanism as claimed in claim 7, wherein the suction part comprises a first connecting plate, a second connecting plate and a mounting plate, the first connecting plate and the second connecting plate are vertically connected, the first connecting plate is fixedly arranged on the third linear adjustment member and is movably connected with the mounting plate through a first rotating shaft, the first connecting plate and the mounting plate can rotate around the first rotating shaft, the second connecting plate is provided with a first lifting cylinder, a telescopic rod of the first lifting cylinder is slidably connected with a movable block through a second rotating shaft, and the second connecting plate and the movable block can rotate around the second rotating shaft; the mounting plate is provided with a movable groove, and the movable block is limited in the movable groove and can freely move along the movable groove in the movable groove.

9. The film sticking mechanism as claimed in claim 8, wherein a film adsorption plate is arranged at the bottom of the mounting plate, and a plurality of second adsorption holes for adsorbing the film are arranged on the lower end surface of the film adsorption plate.

10. The film sticking mechanism according to claim 9, wherein the rolling portion is disposed at an end portion of the mounting plate, the rolling portion includes a roller, an adjusting frame, and a fixing seat, the roller is fixedly disposed at a lower end of the adjusting frame through a roller seat, the roller is freely rotatable around its axis, the adjusting frame and the fixing seat are connected through a second lifting cylinder, the fixing seat is fixedly disposed on the mounting plate, and a relative position between the roller and the film suction plate is adjusted through the second lifting cylinder.

Images