Liquid crystal display polaroid attaching machine and attaching process thereof

Abstract

The invention relates to the technical field of polaroid attaching, and discloses a liquid crystal display polaroid attaching machine and an attaching technology thereof.The liquid crystal display polaroid attaching machine comprises a base, the top of the base is fixedly connected with a first supporting column, the top of the base is fixedly connected with a second supporting column, and the top of the base is fixedly connected with a shell; the front end of the shell is fixedly connected with an observation window, the top of a second supporting column is fixedly connected with a pushing assembly, and the inner wall of the shell is fixedly connected with a film pasting mechanism. By arranging the film pasting mechanism, synchronous pasting operation of polaroids on the upper side and the lower side of the liquid crystal display screen can be achieved, when the display screen is pushed to a machining area, the upper vacuum adsorption plate and the lower vacuum adsorption plate can make contact with the surface of the display screen synchronously, and single-side multi-time pasting and turnover operation in the prior art are not needed; and the attaching period is greatly shortened, the processing efficiency is improved, the problem of position dislocation of the polaroid caused by secondary positioning is avoided, and the yield during production is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polarizing film attachment, in particular to a liquid crystal display screen polarizing film attachment machine and its attachment process. BACKGROUND

[0002] The polarizing film is an optical film with polarization function composed of multiple layers of high polymer material. The polarizing film converts natural light without polarity into polarized light, so that the light perpendicular to the electric field can pass through, so that the liquid crystal display panel can normally display images. It is an essential part of the imaging of liquid crystal display. In the later stage of the production process of the liquid crystal display, the polarizing film needs to be attached to the liquid crystal display screen substrate which has been attached with a flexible circuit board.

[0003] The patent application with the application number CN202411513058.6 discloses a liquid crystal display screen polarizing film attachment machine, which comprises a fixed seat, the upper wall of the fixed seat is provided with a moving groove, the bottom wall of the moving groove is provided with a substrate placing groove, a moving seat is slidably arranged in the moving groove, a polarizing film film-removing assembly is arranged in the moving seat, the upper wall of the moving seat is provided with a polarizing film placing assembly, a linkage assembly is arranged on the polarizing film film-removing assembly and the moving seat, an automatic attachment assembly is arranged at the front end of the moving seat, and a moving assembly is arranged between the moving seat and the fixed seat.

[0004] When the existing equipment is used, single-sided partial attachment is usually adopted, which not only has a complicated operation process and low attachment efficiency, but also is prone to position misalignment of the polarizing films on both sides due to the deviation of the secondary positioning reference, which is not conducive to ensuring the consistency of the attachment precision in batch production. The additional turning and positioning processes increase the product failure rate and the production cost. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a liquid crystal display screen polarizing film attachment machine and its attachment process to solve the problems in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a liquid crystal display screen polarizing film attachment machine, comprising a base, a first supporting column fixedly connected to the top of the base, a second supporting column fixedly connected to the top of the base, an outer shell fixedly connected to the top of the base, an observation window fixedly connected to the front end of the outer shell, a pushing assembly fixedly connected to the top of the second supporting column, and a film attaching mechanism fixedly connected to the inner wall of the outer shell. The film attaching mechanism comprises: Second mobile device, the inner wall of the shell is fixedly connected with the second mobile device, the inner wall of the moving end of the second mobile device is fixedly connected with the telescopic device, the bottom of the telescopic device is fixedly connected with the bottom plate, the bottom of the bottom plate is fixedly connected with the connecting frame, the inner sides of the bottoms of the two ends of the connecting frame are fixedly connected with the first connecting columns, the outer wall of the first connecting column is rotatably connected with the bottom assembly through the bearing, wherein the second mobile device is internally provided with a linear motor, the horizontal position of the bottom assembly can be controlled, the height of the bottom assembly can be controlled through the telescopic device, the synchronous attachment operation of the polarizing plates on the upper and lower sides of the liquid crystal display screen can be realized through the setting of the film attachment mechanism, when the display screen is pushed to the processing area, the upper and lower groups of vacuum suction plates can be in contact with the surface of the display screen synchronously, without the one-side and multiple-time attachment and turning operation as in the prior art, the attachment period is greatly shortened, the processing efficiency is improved, the position dislocation problem of the polarizing plates caused by the secondary positioning is avoided, and the yield rate during production is ensured.

[0007] According to the above technical scheme, the top of the first supporting column is fixedly connected with the first outer frame, the first outer frame is rotatably connected with the driving wheels in the interior through the bearing, wherein the first outer frame is internally provided with a transmission gear set driven by a servo motor, and the transmission gear set is in transmission connection with all the driving wheels in the interior of the first outer frame; after the servo motor is started, the transmission gear set drives all the driving wheels to rotate synchronously, so that the driving wheels drive the attached display screen to move.

[0008] According to the above technical scheme, the front end of the bottom plate is fixedly connected with the front plate, the front end of the front plate is fixedly connected with the connecting head, the outer wall of the connecting head is rotatably connected with the second push rod through the bearing, and the extension and contraction of the second push rod can change the deflection angle of the bottom assembly.

[0009] According to the above technical scheme, the bottom of the end of the bottom plate away from the front plate is fixedly connected with the rear plate, the side of the rear plate away from the bottom plate is fixedly connected with the third push rod, the end of the third push rod away from the rear plate is fixedly connected with the first connecting plate, the end of the first connecting plate away from the third push rod is fixedly connected with the locking plate, and the extension and contraction of the third push rod can change the positions of the first connecting plate and the locking plate.

[0010] According to the technical scheme, the bottom assembly comprises a second connecting plate, connecting holes are formed in the two sides of the second connecting plate, the inner walls of the connecting holes are rotationally connected with the first connecting column through bearings, a locking hole is formed in the rear side of the second connecting plate, and the inner wall of the locking hole is movably connected with a locking plate, wherein the deflection angle of the bottom assembly is locked by embedding the locking plate into the locking hole. By arranging the bottom assembly, the bottom assembly will not shake due to external force or equipment operation during the subsequent polarizing sheet fitting process of the pressure roller, the polarizing sheet on the vacuum suction plate can always maintain the attached posture, the stable locking of the attached angle is realized, the effect is avoided due to shaking during fitting, and the attachment precision is further improved.

[0011] According to the technical scheme, the front end of the second connecting plate is fixedly connected with a third frame, the bottom of the third frame is fixedly connected with a suction assembly, the two sides of the front end of the third frame are fixedly connected with first connecting rods, the inner sides of the two first connecting rods away from the third frame are fixedly connected with second connecting columns, the outer walls of the second connecting columns are rotationally connected with second push rods through bearings, and the second push rods change the deflection angle of the whole bottom assembly by pulling the second connecting columns.

[0012] According to the technical scheme, the suction assembly comprises a vacuum suction plate, the bottom of the vacuum suction plate is used for sucking the polarizing sheet needed to be attached on the display, the two sides of the vacuum suction plate are fixedly connected with sliding columns, the outer walls of the sliding columns are movably connected with auxiliary assemblies, the top of the vacuum suction plate is fixedly connected with a suction device, the outer wall of the suction device is fixedly connected with a connecting pipe, one end of the connecting pipe away from the suction device is fixedly connected with the vacuum suction plate, and the suction device is used for sucking air to provide power for the vacuum suction of the vacuum suction plate.

[0013] According to the technical scheme, the auxiliary assembly comprises a track, the outer wall of the third frame is fixedly connected with the track, the outer wall of the track is movably connected with a first sliding block, the side of the first sliding block away from the track is fixedly connected with a second sliding block, the top of the first sliding block is fixedly connected with a third connecting plate, the outer wall of the third connecting plate is rotationally connected with a second connecting rod through a bearing, and one end of the second connecting rod away from the third connecting plate is rotationally connected with a front plate through a bearing, wherein the deflection of the bottom assembly can change the position of the first sliding block on the track through the second connecting rod. By arranging the auxiliary assembly, the pressure of the pressure roller on the display screen is enhanced by moving a certain distance to the display screen, the attachment effect of the polarizing sheet and the display screen is effectively enhanced, the movable space provided by the elastic assembly for the pressure roller avoids local pressure injuries during the display film attachment, ensures the close attachment of the polarizing sheet and the display screen, reduces bubble residues, and improves the attachment quality.

[0014] According to the technical scheme, the outer wall of the sliding column is movably connected with a movable plate, the side, away from the vacuum adsorption plate, of the movable plate is fixedly connected with a right-angle plate, the front end of the right-angle plate is fixedly connected with a third connecting rod, one end, away from the right-angle plate, of the third connecting rod is rotatably connected with a pressure roller through a bearing, one end, away from the third connecting rod, of the right-angle plate is fixedly connected with a sliding groove plate, the inner wall of the sliding groove plate is fixedly connected with the pressure roller, the inner wall of the sliding groove plate is movably connected with the second sliding block, and the inner wall of the second sliding block is fixedly connected with the pressure roller, wherein the movement of the second sliding block can change the extension distance of the pressure roller, and the elasticity of the elastic assembly can enable the pressure roller to have a certain movable space.

[0015] A liquid crystal display screen polarizing sheet attaching process, comprising the following steps: S1, when the liquid crystal display screen needs to be attached to the polarizing sheet, the unprocessed liquid crystal display screen is placed stably on the pushing assembly, and then the pushing device in the pushing assembly is started to push the unprocessed display screen to the processing area of the film attaching mechanism; the suction device of the suction assembly has been started before, the negative pressure is generated at the bottom of the vacuum adsorption plate through the connecting pipe to adsorb the polarizing sheet to be attached, and the upper and lower two groups of vacuum adsorption plates configured by the equipment correspond to the upper and lower surfaces of the display screen, so that the polarizing sheet attaching operation on the upper and lower sides can be completed synchronously during the process of the display screen through the film attaching mechanism; S2, during the process of the liquid crystal display screen through the film attaching mechanism, the continuous pushing of the pushing assembly ensures that the display screen stably enters the inside of the film attaching mechanism; when the display screen partially completes the attachment and extends out of the film attaching mechanism, the driving mechanism of the first outer frame drives the driving wheel to rotate to complete the subsequent conveying of the display screen through the friction between the driving wheel and the surface of the display screen, and finally the finished product display screen with the attached polarizing sheet is conveyed to the collection area outside the equipment; S3, after completing the single liquid crystal display screen polarizing sheet attaching process, first, the third push rod is started to retract to drive the locking plate to be extracted from the locking hole to release the angle locking of the bottom assembly; then the second push rod is started to retract to pull the bottom assembly to deflect to a horizontal angle; then the second moving device is started to drive the bottom assembly to move horizontally to the polarizing sheet supply station; finally, the telescopic device is started to extend to drive the bottom assembly to descend, so that the vacuum adsorption plate is attached to the new polarizing sheet to be supplied, and the suction device is started to adsorb and fix the new polarizing sheet at the bottom of the vacuum adsorption plate to complete the polarizing sheet supply; S4, after the adsorption of the new polarizer is completed, first start the telescopic device to retract, drive the bottom assembly to move to the preset height; then start the second moving device, drive the bottom assembly to reset to the attaching station of the film attaching mechanism; then start the second push rod to push out, adjust the bottom assembly to reach the preset deflection angle; after the angle adjustment is completed, start the third push rod to elongate, drive the locking plate to be embedded in the locking hole, lock the deflection angle of the bottom assembly, ensure the subsequent attaching stability; finally, push the new unprocessed liquid crystal display screen into the attaching station of the film attaching mechanism through the pushing assembly, and the equipment enters the next polarizer attaching.

[0016] Compared with the prior art, the present application provides a liquid crystal display screen polarizer attaching machine and its attaching process, which relates to TFT liquid crystal screen technology, has the following beneficial effects: 1、The film attaching mechanism is provided, the synchronous attaching operation of the upper and lower polarizers on the liquid crystal display screen can be realized, when the display screen is pushed to the processing area, the upper and lower two groups of vacuum adsorption plates can be in contact with the surface of the display screen simultaneously, without the one-side and multiple attaching and turning operation as in the prior art, the attaching period is greatly shortened, the processing efficiency is improved, the position misalignment problem of the polarizer caused by the secondary positioning is avoided, and the yield is ensured during production.

[0017] 2、The auxiliary assembly is provided, the pressure roller moves a certain distance to the display screen direction, the pressure of the pressure roller on the display screen is enhanced, the attaching effect of the polarizer and the display screen is effectively improved, the movable space provided by the elastic assembly for the pressure roller avoids the local bruising of the display film during the attaching process, ensures the close attachment of the polarizer and the display screen, reduces the bubble residue, and improves the attaching quality.

[0018] 3、The bottom assembly is provided, during the subsequent polarizer attaching process of the pressure roller, the bottom assembly will not shake due to external force or equipment operation, the polarizer on the vacuum adsorption plate can always maintain the attaching posture, the stable locking of the attaching angle is realized, the effect is not affected by the shaking during the attaching process, and the attaching precision is further improved.

[0019] 4、The pushing assembly is provided, the radius inside the placing roller is different from that outside, which is used for limiting the placing position of the display, when the display screen is placed, the alignment positioning can be realized by relying on the recessed part of the placing roller, and the placing deviation is avoided; meanwhile, the first push rod can drive the pushing rod to move up and down, when the unprocessed display screen needs to be pushed by the rear feeding equipment, the first push rod can be controlled to retract, so that the pushing rod is lowered to be lower than the height of the placing roller, the pushing path of the pushing rod to the rear feeding equipment is avoided to be blocked, after the feeding is completed, the height of the pushing rod is adjusted through the first push rod, and the display screen is pushed to move along the placing roller to the film attaching mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and are meant to explain the present application, but are not intended to limit the application. In the drawings: Figure 1 is a schematic view of the overall structure of the present application; Figure 2 is a sectional view of the overall structure of the present application; Figure 3 is a schematic view of the partial structure of the present application; Figure 4 is a schematic view of the pushing assembly structure of the present application; Figure 5 is a schematic view of the film pasting mechanism of the present application Figure 1 ; Figure 6 is a schematic view of the film pasting mechanism movement of the present application; Figure 7 is a schematic view of the film pasting mechanism of the present application Figure 2 ; Figure 8 is a schematic view of the bottom assembly of the present application Figure 1 ; Figure 9 is a schematic view of the bottom assembly of the present application Figure 2 ; Figure 10 is a schematic view of the adsorption assembly of the present application; Figure 11 is a schematic view of the auxiliary assembly of the present application Figure 1 ; Figure 12 is a schematic view of the auxiliary assembly of the present application Figure 2 ; Figure 13 is a schematic view of the auxiliary assembly of the present application Figure 3 .

[0021] In the figure: 1, base; 101, first support column; 102, second support column; 103, outer shell; 104, viewing window; 105, first outer frame; 106, drive wheel; 2, pushing assembly; 201, second outer frame; 202, placing roller; 203, first moving device; 204, first push rod; 205, pushing rod; 3, film pasting mechanism; 301, second moving device; 302, telescopic device; 303, bottom plate; 304, front plate; 305, connecting head; 306, second push rod; 307, connecting frame; 308, first connecting column; 309, rear plate; 3010, third push rod; 3011, first connecting plate; 3012, locking plate; 31, bottom assembly; 311, second connecting plate; 312, connecting hole; 313, locking hole; 314, third frame; 315, first connecting rod; 316, second connecting column; 32, suction assembly; 321, vacuum suction plate; 322, sliding column; 323, suction device; 324, connecting pipe; 33, auxiliary assembly; 331, track; 332, first sliding block; 333, second sliding block; 334, third connecting plate; 335, second connecting rod; 336, movable plate; 337, right-angle plate; 338, third connecting rod; 339, pressure roller; 3310, chute plate; 3311, elastic component. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0023] Examples of the described embodiments are shown in the accompanying drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0024] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Embodiment one: refer to Figures 1-4The application provides the technical scheme: a liquid crystal display screen polaroid attaching machine, which comprises a base 1, a first supporting column 101 fixedly connected to the top of the base 1, a second supporting column 102 fixedly connected to the top of the base 1, an outer shell 103 fixedly connected to the top of the base 1, and an observation window 104 fixedly connected to the front end of the outer shell 103. In order to ensure that the device can stably realize the synchronous attaching operation of the polaroids on the upper and lower sides of the liquid crystal display screen and avoid the misalignment of double-sided attaching caused by unstable material conveying, a pushing assembly 2 and a driving wheel 106 are arranged, the top of the second supporting column 102 is fixedly connected with the pushing assembly 2, and the inner wall of the outer shell 103 is fixedly connected with a film attaching mechanism 3. The top of the first supporting column 101 is fixedly connected with a first outer frame 105, and the first outer frame 105 is rotatably connected with the driving wheel 106 through a bearing in the inside of the first outer frame 105. A transmission gear set driven by a servo motor is arranged in the first outer frame 105, and the transmission gear set is in transmission connection with all the driving wheels 106 in the inside of the first outer frame 105. After the servo motor is started, the transmission gear set drives all the driving wheels 106 to rotate synchronously, so that the driving wheel 106 drives the display screen with the film attached to move.

[0026] The pushing assembly 2 comprises a second outer frame 201, the bottom of the second outer frame 201 is fixedly connected with the second supporting column 102, both sides of the inner wall of the second outer frame 201 are rotatably connected with placing rollers 202 through bearings, the top of the second outer frame 201 is fixedly connected with a first moving device 203, the first moving device 203 is a linear motor which can drive the moving end to move left and right, the top of the first moving device 203 is fixedly connected with a first push rod 204, the top of the first push rod 204 is fixedly connected with a pushing rod 205, the first push rod 204 can change the height of the pushing rod 205, and the pushing rod 205 is used for pushing the display screen on the placing rollers 202 to move. The second outer frame 201 is fixed with the second supporting column 102 and the outer shell 103 through the bottom, the placing rollers 202 rotatably connected with the inner wall of both sides of the second outer frame 201 are used for bearing the unprocessed display screen, and gaps are left between the placing rollers 202 on both sides for the passing of the pushing rod 205. In working, the display screen is placed on the placing rollers 202 through the feeding device, then the pushing rod 205 is adjusted in length through the first push rod 204 so as to adapt to the height of the side edge of the display screen, then the first moving device 203 as a linear motor drives the moving end to move towards the film attaching mechanism 3, drives the pushing rod 205 to move synchronously, and then pushes the display screen on the placing rollers 202 to the processing area of the film attaching mechanism 3.

[0027] Embodiment two: please refer to Figures 5-13On the basis of embodiment one, the application provides technical solutions: to solve the problems of low single-side sub-attaching efficiency and easy mispositioning of secondary positioning of existing equipment, and to further improve the film-attaching efficiency and film-attaching quality of the equipment, the film-attaching mechanism 3 is specially set. The film-attaching mechanism 3 comprises a second moving device 301, the inner wall of the shell 103 is fixedly connected with the second moving device 301, the inner wall of the moving end of the second moving device 301 is fixedly connected with a telescopic device 302, the bottom of the telescopic device 302 is fixedly connected with a bottom plate 303, the bottom of the bottom plate 303 is fixedly connected with a connecting frame 307, the inner sides of the bottoms of the two ends of the connecting frame 307 are fixedly connected with first connecting columns 308, the outer wall of the first connecting column 308 is rotatably connected with a bottom assembly 31 through a bearing, wherein the second moving device 301 is internally provided with a linear motor, the horizontal position of the bottom assembly 31 can be controlled, the height of the bottom assembly 31 can be controlled by the telescopic device 302, the front end of the bottom plate 303 is fixedly connected with a front plate 304, the front end of the front plate 304 is fixedly connected with a connecting head 305, the outer wall of the connecting head 305 is rotatably connected with a second push rod 306 through a bearing, the deflection angle of the bottom assembly 31 can be changed by the telescopic of the second push rod 306, the bottom of the end of the bottom plate 303 away from the front plate 304 is fixedly connected with a rear plate 309, the side of the rear plate 309 away from the bottom plate 303 is fixedly connected with a third push rod 3010, the end of the third push rod 3010 away from the rear plate 309 is fixedly connected with a first connecting plate 3011, the end of the first connecting plate 3011 away from the third push rod 3010 is fixedly connected with a locking plate 3012, the position of the first connecting plate 3011 and the locking plate 3012 can be changed by the telescopic of the third push rod 3010, the linear motor in the second moving device 301 can drive the horizontal movement of the moving end, and then drive the horizontal movement of the parts fixedly connected with the moving end, such as the telescopic device 302, the bottom plate 303 and the parts below the bottom plate, and then adjust the horizontal position of the bottom assembly 31; secondly, the telescopic device 302 can be telescopic in the vertical direction to adjust the height of the bottom assembly 31; when the second push rod 306 at the front end of the bottom plate 303 is telescopic, the bottom assembly 31 will be pulled or pushed around the connecting head 305 as the fulcrum, so that the bottom assembly 31 rotates around the first connecting column 308, thereby changing the deflection angle of the bottom assembly 31; the third push rod 3010 can be telescopic to drive the first connecting plate 3011 and the locking plate 3012 to move, when the deflection angle of the bottom assembly 31 is adjusted in place, the third push rod 3010 is elongated to push the locking plate 3012 to embed in the locking hole 313 of the bottom assembly 31, so as to lock the deflection angle of the bottom assembly 31, and avoid the shaking of the bottom assembly 31 in the attaching process.

[0028] The bottom assembly 31 comprises a second connecting plate 311, both sides of the second connecting plate 311 are provided with connecting holes 312, the inner wall of the connecting hole 312 is rotatably connected with the first connecting column 308 through a bearing, the rear side of the second connecting plate 311 is provided with a locking hole 313, the inner wall of the locking hole 313 is movably connected with the locking plate 3012, wherein the deflection angle of the bottom assembly 31 is locked by embedding the locking plate 3012 into the locking hole 313, the front end of the second connecting plate 311 is fixedly connected with a third frame 314, the bottom of the third frame 314 is fixedly connected with an adsorption assembly 32, both sides of the front end of the third frame 314 are fixedly connected with first connecting rods 315, the inner side of the ends of the two first connecting rods 315 away from the third frame 314 are fixedly connected with second connecting columns 316, the outer wall of the second connecting column 316 is rotatably connected with the second push rod 306 through a bearing, the second push rod 306 changes the deflection angle of the whole bottom assembly 31 by pulling the second connecting column 316, and the bottom assembly 31 takes the connecting holes 312 on both sides as the deflection fulcrum; when it is necessary to adjust the attachment angle, the second push rod 306 pulls the second connecting column 316, thereby driving the second connecting plate 311 to deflect around the first connecting column 308, until the angle is adapted to the attachment requirements of the display screen; then the third push rod 3010 pushes the locking plate 3012 to embed into the locking hole 313 of the second connecting plate 311, and the deflection angle is locked to avoid shaking during attachment.

[0029] The adsorption assembly 32 comprises a vacuum adsorption plate 321, the bottom of the vacuum adsorption plate 321 is used for adsorbing a polarizing sheet which needs to be attached to a display, both sides of the vacuum adsorption plate 321 are fixedly connected with sliding columns 322, the outer wall of the sliding column 322 is movably connected with an auxiliary assembly 33, the top of the vacuum adsorption plate 321 is fixedly connected with a suction device 323, the outer wall of the suction device 323 is fixedly connected with a connecting pipe 324, one end of the connecting pipe 324 away from the suction device 323 is fixedly connected with the vacuum adsorption plate 321, and the suction device 323 is used for sucking air to provide power for the vacuum adsorption of the vacuum adsorption plate 321.

[0030] The auxiliary assembly 33 comprises a track 331, the outer wall of the third frame 314 is fixedly connected with the track 331, the outer wall of the track 331 is movably connected with a first sliding block 332, the side, away from the track 331, of the first sliding block 332 is fixedly connected with a second sliding block 333, the top of the first sliding block 332 is fixedly connected with a third connecting plate 334, the outer wall of the third connecting plate 334 is rotatably connected with a second connecting rod 335 through a bearing, one end of the second connecting rod 335, away from the third connecting plate 334, is rotatably connected with the front plate 304 through a bearing, wherein the deflection of the bottom assembly 31 can change the position of the first sliding block 332 on the track 331 through the second connecting rod 335, the outer wall of the sliding column 322 is movably connected with a movable plate 336, the side, away from the vacuum adsorption plate 321, of the movable plate 336 is fixedly connected with a right-angle plate 337, the front end of the right-angle plate 337 is fixedly connected with a third connecting rod 338, one end of the third connecting rod 338, away from the right-angle plate 337, is rotatably connected with a pressure roller 339 through a bearing, one end of the right-angle plate 337, away from the third connecting rod 338, is fixedly connected with a sliding groove plate 3310, the inner wall of the sliding groove plate 3310 is fixedly connected with the pressure roller 339, the inner wall of the sliding groove plate 3310 is movably connected with the second sliding block 333, and the inner wall of the second sliding block 333 is fixedly connected with the pressure roller 339, wherein the movement of the second sliding block 333 can change the extension distance of the pressure roller 339, and the elasticity of the elastic assembly 3311 itself can enable the pressure roller 339 to have a certain movable space, when the bottom assembly 31 is deflected, the second connecting rod 335 drives the first sliding block 332 to slide along the track 331, the second sliding block 333 fixedly connected with the first sliding block 332 moves along the sliding groove plate 3310, and then pushes the pressure roller 339 to adjust the extension distance, so that the pressure roller 339 is attached to the surface of the polarizing plate; during the attachment process, the pressure roller 339 rolls and compacts the polarizing plate, and the elastic assembly 3311 provides a movable space for the pressure roller through the elasticity thereof, so that the polarizing plate is closely attached to the display screen, and air bubbles are reduced.

[0031] A polarizing plate attaching process for a liquid crystal display screen comprises the following steps: S1, when the polarizing plate needs to be attached to the liquid crystal display screen, the unprocessed liquid crystal display screen is placed on the pushing assembly 2, and then the pushing device in the pushing assembly 2 is started to push the unprocessed display screen to the processing area of the film attaching mechanism 3; the suction device 323 of the adsorption assembly 32 is started, a negative pressure is generated at the bottom of the vacuum adsorption plate 321 through the connecting pipe 324, the polarizing plate to be attached is adsorbed, and the upper and lower two groups of vacuum adsorption plates 321 are arranged on the display screen, so that the polarizing plate attaching operation on the upper and lower surfaces of the display screen can be completed simultaneously during the process of the display screen through the film attaching mechanism 3; S2, in the process of liquid crystal display screen through the film mechanism 3, the front section of the conveying relies on the continuous pushing of the pushing assembly 2 to ensure that the display screen is stably entered into the film mechanism 3; when the display screen is partially attached and extends out of the film mechanism 3, the driving mechanism of the first outer frame 105 drives the driving wheel 106 to rotate, and the subsequent conveying of the display screen is completed through the friction between the driving wheel 106 and the surface of the display screen, and finally the finished product display screen with the polarizing sheet is conveyed to the collection area outside the equipment; S3, after completing the single liquid crystal display screen polarizing sheet attachment processing, first start the third push rod 3010 to retract, drive the locking plate 3012 to pull out from the locking hole 313, and release the angle locking of the bottom assembly 31; then start the second push rod 306 to retract, pull the bottom assembly 31 to deflect to a horizontal angle; then start the second moving device 301 to drive the bottom assembly 31 to move horizontally to the polarizing sheet supply station; finally, start the telescopic device 302 to extend, drive the bottom assembly 31 to descend, so that the vacuum adsorption plate 321 is attached to the new polarizing sheet to be supplied, and at the same time, start the suction device 323 to adsorb and fix the new polarizing sheet at the bottom of the vacuum adsorption plate 321, and complete the polarizing sheet supply; S4, after completing the adsorption of the new polarizing sheet, first start the telescopic device 302 to retract, drive the bottom assembly 31 to move to a preset height; then start the second moving device 301 to drive the bottom assembly 31 to reset to the attachment station of the film mechanism 3; then start the second push rod 306 to push out, adjust the bottom assembly 31 to a preset deflection angle; after the angle adjustment is completed, start the third push rod 3010 to extend, drive the locking plate 3012 to embed into the locking hole 313, lock the deflection angle of the bottom assembly 31, and ensure the stability of the subsequent attachment; finally, push the new unprocessed liquid crystal display screen into the attachment station of the film mechanism 3 through the pushing assembly 2, and the equipment enters the next polarizing sheet attachment.

[0032] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment.

[0033] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid crystal display screen polarizer attachment machine, comprising a base (1), a first support column (101) fixedly connected to the top of the base (1), a second support column (102) fixedly connected to the top of the base (1), a housing (103) fixedly connected to the top of the base (1), and an observation window (104) fixedly connected to the front end of the housing (103), characterized in that, The top of the second support column (102) is fixedly connected to a pushing component (2), and the inner wall of the outer shell (103) is fixedly connected to a film-applying mechanism (3). The film application mechanism (3) includes: The second moving device (301) is fixedly connected to the inner wall of the outer shell (103). The inner wall of the moving end of the second moving device (301) is fixedly connected to a telescopic device (302). The bottom of the telescopic device (302) is fixedly connected to a base plate (303). The bottom of the base plate (303) is fixedly connected to a connecting frame (307). The inner sides of both ends of the bottom of the connecting frame (307) are fixedly connected to a first connecting column (308). The outer wall of the first connecting column (308) is rotatably connected to a bottom component (31) through a bearing. The second moving device (301) is equipped with a linear motor, which can control the horizontal position of the bottom component (31), while the telescopic device (302) can control the height of the bottom component (31).

2. The liquid crystal display screen polarizer attachment machine according to claim 1, characterized in that: The top of the first support column (101) is fixedly connected to the first outer frame (105). The drive wheel (106) is rotatably connected inside the first outer frame (105) through a bearing. The first outer frame (105) has a transmission gear set driven by a servo motor. The transmission gear set is connected to all the drive wheels (106) inside the first outer frame (105). After the servo motor is started, the transmission gear set drives all the drive wheels (106) to rotate synchronously, so that the drive wheels (106) can move the screen that has been coated.

3. The liquid crystal display screen polarizer attachment machine according to claim 2, characterized in that: The front end of the base plate (303) is connected to the front plate (304), and the front end of the front plate (304) is fixedly connected to the connector (305). The outer wall of the connector (305) is rotatably connected to the second push rod (306) through the bearing. The extension and retraction of the second push rod (306) can change the deflection angle of the bottom component (31).

4. The liquid crystal display screen polarizer attachment machine according to claim 3, characterized in that: A rear plate (309) is fixedly connected to the bottom of the base plate (303) away from the front plate (304). A third push rod (3010) is fixedly connected to the side of the rear plate (309) away from the base plate (303). A first connecting plate (3011) is fixedly connected to the end of the third push rod (3010) away from the rear plate (309). A locking plate (3012) is fixedly connected to the end of the first connecting plate (3011) away from the third push rod (3010). The extension and retraction of the third push rod (3010) can change the position of the first connecting plate (3011) and the locking plate (3012).

5. A liquid crystal display polarizer attachment machine according to claim 4, characterized in that: The bottom component (31) includes a second connecting plate (311), and connecting holes (312) are provided on both sides of the second connecting plate (311). The inner wall of the connecting hole (312) is rotatably connected to the first connecting column (308) through a bearing. A locking hole (313) is provided on the rear side of the second connecting plate (311). The inner wall of the locking hole (313) is movably connected to the locking plate (3012). The deflection angle of the bottom component (31) is locked by the locking plate (3012) being embedded in the locking hole (313).

6. A liquid crystal display screen polarizer attachment machine according to claim 5, characterized in that: The front end of the second connecting plate (311) is fixedly connected to the third frame (314), the bottom of the third frame (314) is fixedly connected to the adsorption component (32), the front ends of the third frame (314) are fixedly connected to the first connecting rods (315), the inner side of the two first connecting rods (315) away from the third frame (314) is fixedly connected to the second connecting column (316), the outer wall of the second connecting column (316) is rotatably connected to the second push rod (306) through the bearing, and the second push rod (306) changes the overall deflection angle of the bottom component (31) by pulling the second connecting column (316).

7. A liquid crystal display screen polarizer attachment machine according to claim 6, characterized in that: The adsorption assembly (32) includes a vacuum adsorption plate (321). The bottom of the vacuum adsorption plate (321) is used to adsorb the polarizer that needs to be attached to the display. Sliding columns (322) are fixedly connected to both sides of the vacuum adsorption plate (321). An auxiliary assembly (33) is movably connected to the outer wall of the sliding column (322). A suction device (323) is fixedly connected to the top of the vacuum adsorption plate (321). A connecting pipe (324) is fixedly connected to the outer wall of the suction device (323). The end of the connecting pipe (324) away from the suction device (323) is fixedly connected to the vacuum adsorption plate (321). The suction device (323) is used to draw air to provide power for the vacuum adsorption of the vacuum adsorption plate (321).

8. A liquid crystal display polarizer attachment machine according to claim 7, characterized in that: The auxiliary component (33) includes a track (331). The outer wall of the third frame (314) is fixedly connected to the track (331). A first slider (332) is movably connected to the outer wall of the track (331). A second slider (333) is fixedly connected to the side of the first slider (332) away from the track (331). A third connecting plate (334) is fixedly connected to the top of the first slider (332). A second connecting rod (335) is rotatably connected to the outer wall of the third connecting plate (334) through a bearing. The end of the second connecting rod (335) away from the third connecting plate (334) is rotatably connected to the front plate (304) through a bearing. The deflection of the bottom component (31) can change the position of the first slider (332) on the track (331) through the second connecting rod (335).

9. A liquid crystal display screen polarizer attachment machine according to claim 8, characterized in that: A movable plate (336) is movably connected to the outer wall of the sliding column (322). A right-angle plate (337) is fixedly connected to the side of the movable plate (336) away from the vacuum adsorption plate (321). A third connecting rod (338) is fixedly connected to the front end of the right-angle plate (337). A pressure roller (339) is rotatably connected to the end of the third connecting rod (338) away from the right-angle plate (337) via a bearing. The end of the right-angle plate (337) away from the third connecting rod (338) is fixedly connected to... A slide plate (3310) is connected to the inner wall of the slide plate (3310), and a pressure roller (339) is fixedly connected to the inner wall of the slide plate (3310). The inner wall of the slide plate (3310) is movably connected to a second slider (333), and the inner wall of the second slider (333) is fixedly connected to the pressure roller (339). The movement of the second slider (333) can change the extension distance of the pressure roller (339), and the elasticity of the elastic component (3311) itself allows the pressure roller (339) to have a certain amount of movable space.

10. A liquid crystal display screen polarizer bonding process, applied to the liquid crystal display screen polarizer bonding machine as described in claim 9, characterized in that, Includes the following steps: S1. When polarizer application is required on the LCD screen, the unprocessed LCD screen is placed stably on the pushing component (2), and then the pushing device in the pushing component (2) is activated to push the unprocessed screen to the processing area of ​​the film application mechanism (3). The suction device (323) of the adsorption component (32) has been activated beforehand. The vacuum adsorption plate (321) generates negative pressure at the bottom through the connecting pipe (324) to adsorb the polarizer to be applied. The upper and lower vacuum adsorption plates (321) configured in the equipment correspond to the upper and lower surfaces of the screen respectively. Therefore, the polarizer application operation on the upper and lower sides can be completed simultaneously during the process of the screen passing through the film application mechanism (3). S2. During the process of the LCD screen passing through the film-applying mechanism (3), the front-end conveying relies on the continuous pushing of the pushing component (2) to ensure that the screen enters the film-applying mechanism (3) stably. When the screen part is fully attached and extends out of the film-applying mechanism (3), the driving mechanism of the first outer frame (105) drives the driving wheel (106) to rotate. The subsequent conveying of the screen is completed by the friction between the driving wheel (106) and the surface of the screen. Finally, the finished screen with the polarizer fully attached is conveyed to the collection area outside the equipment. S3. After completing the single-time polarizer application process for the LCD screen, firstly, the third push rod (3010) is activated to retract, causing the locking plate (3012) to be pulled out from the locking hole (313), thus releasing the angle lock on the bottom component (31); then, the second push rod (306) is activated to retract, pulling the bottom component (31) to deflect to a horizontal angle; subsequently, the second moving device (301) is activated to drive the bottom component (31) to move horizontally to the polarizer replenishment station; finally, the telescopic device (302) is activated to extend, causing the bottom component (31) to descend, so that the vacuum adsorption plate (321) adheres to the new polarizer to be replenished, and at the same time, the suction device (323) is activated to adsorb and fix the new polarizer to the bottom of the vacuum adsorption plate (321), thus completing the polarizer replenishment; S4. After the new polarizer is adsorbed, the telescopic device (302) is activated to retract, which moves the bottom component (31) to a preset height. Then, the second moving device (301) is activated to drive the bottom component (31) to reset to the attachment station of the film attaching mechanism (3). Then, the second push rod (306) is activated to push out and adjust the bottom component (31) to the preset deflection angle. After the angle adjustment is completed, the third push rod (3010) is activated to extend and drive the locking plate (3012) to embed into the locking hole (313) to lock the deflection angle of the bottom component (31) and ensure the subsequent attachment stability. Finally, the new unprocessed liquid crystal display screen is pushed to the attachment station of the film attaching mechanism (3) by pushing the component (2), and the equipment enters the next polarizer attachment.

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