Highly efficient and stable polarizer cover device

Abstract

The application relates to the technical field of film coating jigs, and particularly discloses a high-efficiency and stable polaroid coating device, which comprises a polaroid and an LCD screen and further comprises a profile frame, which is respectively provided with a positioning block for fixing the LCD screen, a slanted sliding frame with a groove for bearing the polaroid and a pressing mechanism comprising air cylinders symmetrically and slidingly connected to the profile frame. When the application is used, the LCD screen is arranged according to the position of the positioning block, then the polaroid is placed in the groove on the slanted sliding frame, then the slanted sliding frame is moved to preliminarily press one side of the polaroid against one side of the LCD screen on the positioning block, then the air cylinders are started to move the rubber-coated roller to the LCD screen and press the rubber-coated roller against one side of the LCD screen, at this time, the air cylinders are pushed to slide along the profile frame to the slanted sliding frame, and the slanted sliding frame is driven to slide, so that the polaroid is coated on the LCD screen. The polaroid and the LCD screen are separated by the air cylinders, and the bubble between the polaroid and the LCD screen is reduced by the aid of the jig.

Description

Technical Field

[0001] This invention relates to the field of coating fixture technology, specifically to a highly efficient and stable polarizer coating device. Background Technology

[0002] As is well known, the polarizer in an LCD screen is one of the core components of the optical element, and its function is to convert the natural light from the backlight into linearly polarized light with a single vibration direction.

[0003] For example, the invention patent with application publication number CN119937192A, application publication date May 6, 2025, entitled "A Polarizing Film Attaching Device," includes an attachment frame, a horizontal moving platform in the middle of the attachment machine, a lifting platform on the horizontal moving platform, an attachment platform on the lifting platform, and vacuum adsorption holes on the attachment platform. A mechanical adsorption arm is located on the upper side of the attachment frame. The mechanical adsorption arm includes a mechanical adsorption arm bracket with one end fixedly connected to the attachment frame, and an end effector component that cooperates with the horizontal moving platform at the other end. One end of the end effector component has an adsorption plate, and the side of the adsorption plate away from the end effector component has an adsorption hole. An image processing component is located on the mechanical adsorption arm bracket. A pressure roller mechanism and a dust removal mechanism are also provided on the attachment frame. The polarizing film attaching device of this invention includes a dust removal mechanism and a pressure roller mechanism. The dust removal mechanism removes dust from the polarizing film and the glass substrate, while the pressure roller mechanism enables sequential attachment of the polarizing film, avoiding air bubble problems during overall attachment.

[0004] The shortcomings of existing technologies are that, when fixing polarizers onto LCD screens, traditional polarizer application is done manually. The position of the polarizer is difficult to control during application, and it is easy to apply it crookedly. In addition, the uneven force applied during the application process can easily generate air bubbles, resulting in low yield and efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a highly efficient and stable polarizer-coated device to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency and stable polarizer coating device, comprising a polarizer and an LCD screen, and further comprising a profile frame on which the following are respectively disposed:

[0007] Positioning blocks are used to fix the LCD screen;

[0008] A sliding inclined carriage with grooves for supporting polarizers;

[0009] The bonding mechanism includes cylinders symmetrically slidably connected to the profile frame, and a rubber-coated roller is rotatably connected between the output ends of the two cylinders. The rubber-coated roller is driven by the cylinders to move along the LCD screen to apply the polarizer.

[0010] As a further description of the above technical solution: further comprising a recycling mechanism, which comprises a winding frame arranged in the inclined slide frame, a release film is arranged on the polarizing plate, and the winding frame rotates and winds the release film in a predetermined direction with the inclined slide frame.

[0011] As a further description of the above technical solution: the low position of the inclined slide frame is movably provided with a pushing block, the pushing block reciprocates along the vertical direction with the rotation of the winding frame to intermittently contact the LCD screen with the release film.

[0012] As a further description of the above technical solution: the pushing block is symmetrically connected with an expansion plate, and the expansion plate expands the contact surface of the release film and the LCD screen away from each other.

[0013] As a further description of the above technical solution: a tensioning block is arranged between the pushing block and the winding frame, and reciprocates along the vertical direction with the rotation of the winding frame, and the reciprocating direction of the tensioning block is the same as that of the pushing block.

[0014] As a further description of the above technical solution: sliding grooves are formed at both ends of the pushing block and the tensioning block, and the sliding grooves are slidingly connected to the driving wheels on the inclined slide frame.

[0015] As a further description of the above technical solution: further comprising a pre-sticking assembly, which comprises a sliding plate slidingly connected to the profile frame, a tapering wheel movably connected to the sliding plate, and the rubber-coated roller comprises a pre-pressing position, and the tapering wheel is driven to press and stick the polarizing plate at the pre-pressing position along the sliding plate.

[0016] As a further description of the above technical solution: the side wall of the profile frame is provided with an elastic protrusion, which is used to limit the cylinder and the sliding plate, so that the rubber-coated roller and the tapering wheel are fixed to the pre-pressing position.

[0017] As a further description of the above technical solution: the inclined slide frame is rotatably connected with a retention roller, and the tapering wheel is driven to extend out of the sliding plate to fit the retention roller.

[0018] As a further description of the above technical solution: one end of the tapering wheel is sequentially hinged with two sections of rotating connecting rods, a limiting rail slot for limiting the rotating connecting rods is formed on the sliding plate, and a spring sheet for bending the rotating connecting rods and the tapering wheel is arranged between the rotating connecting rods and the tapering wheel.

[0019] In the above technical solution, the high-efficiency and stable polaroid covering device provided by the application is used to place the LCD screen according to the position of the positioning block, then put the polaroid into the groove on the inclined slide, then move the inclined slide to pre-paste one side of the polaroid to one side of the LCD screen on the positioning block, then start the air cylinder to move the rubber-coated roller to the LCD screen and paste the rubber-coated roller to one side of the LCD screen, at this time, the air cylinder is pushed to slide along the profile frame to the inclined slide, and the inclined slide is driven to slide, so that the polaroid is covered on the LCD screen, the skill requirement of the user is low during use, the air bubble between the polaroid and the LCD screen is reduced through the aid of the jig. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application is provided.

[0022] Figure 2 The structure schematic diagram of the recycling mechanism provided by the embodiment of the present application is provided.

[0023] Figure 3 The structure schematic diagram of the pre-pasting assembly provided by the embodiment of the present application is provided.

[0024] Figure 4 The overall structure schematic diagram of another angle provided by the embodiment of the present application is provided.

[0025] Figure 5 The explosion structure schematic diagram of the recycling mechanism provided by the embodiment of the present application is provided.

[0026] Figure 6 The Figure 5 The enlarged schematic diagram of A in the figure is provided.

[0027] Figure 7 The Figure 5 The enlarged schematic diagram of B in the figure is provided.

[0028] Figure 8 The Figure 5 The enlarged schematic diagram of C in the figure is provided.

[0029] Figure 9 The cross-sectional structure schematic diagram of the overall provided by the embodiment of the present application is provided.

[0030] Figure 10 The Figure 9 The enlarged schematic diagram of D in the figure is provided.

[0031] Figure 11 For Figure 9 Enlarged view of the middle E.

[0032] Reference signs:

[0033] 1, profile frame; 10, positioning block; 11, first sliding rail; 2, inclined sliding frame; 3, pressing mechanism; 31, rubber-coated roller; 32, air cylinder; 321, operating rod; 322, air cylinder groove; 4, pre-pasting assembly; 41, sliding plate; 411, waist round track; 412, extension table; 4121, limiting track groove; 42, holding rod; 421, rotating connecting rod; 422, reed; 423, conical pressing wheel; 43, second sliding rail; 44, elastic protrusion; 5, recycling mechanism; 51, retention roller; 511, needling part; 52, push block; 521, sliding groove; 522, expansion plate; 523, spring; 53, tensioning block; 54, winding frame; 540, pawl; 5401, ratchet wheel; 541, transmission belt; 542, transmission wheel; 55, coupling wheel; 56, drive wheel; 561, sliding rod; 6, polarizing sheet; 61, release film. DETAILED DESCRIPTION

[0034] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0035] Please refer to Figures 1-11 , the embodiment of the present application provides a technical scheme: a high-efficiency and stable polarizing sheet covering device, comprising a polarizing sheet 6 and an LCD screen, further comprising a profile frame 1, which is provided with:

[0036] Positioning block 10, which is used for fixing the LCD screen;

[0037] Inclined sliding frame 2, which is provided with a groove for carrying the polarizing sheet 6;

[0038] Pressing mechanism 3, which comprises air cylinders 32 symmetrically and slidingly connected to the profile frame 1, and a rubber-coated roller 31 rotatably connected between the output ends of the two air cylinders 32, the rubber-coated roller 31 being driven by the air cylinders 32 to move along the LCD screen to press the polarizing sheet 6.

[0039] Specifically, the profile frame 1 is fixedly connected with a first sliding rail 11 through screws, and the inclined sliding frame 2 and the air cylinder 32 are both slidingly connected to the first sliding rail 11. The inclined sliding frame 2 can also shield the LCD screen during use, thereby playing a dust removal role. The air cylinder 32 and the first sliding rail 11 are provided with connecting pieces, and the connecting pieces are fixedly connected with the air cylinder 32 and the first sliding rail 11 through fasteners. The profile frame 1 is provided with a panel at the top, and the positioning block 10 is fixedly connected to the panel through fasteners, for positioning the LCD screen. The rubber-coated roller 31 is rotatably connected between the two air cylinders 32, and rotation is achieved through bearings. One of the air cylinders 32 is fixedly connected with a handle through interference fit, and the handle is used to manually push the air cylinder 32 to move with the rubber-coated roller 31. The connecting piece of the air cylinder 32 on one side of the handle is provided with an operating rod 321, which is used to control the air cylinder 32 to move in the vertical direction, thereby driving the rubber-coated roller 31 to move away from or close to the positioning block 10, so as to press and cover the LCD screen.

[0040] Further, the rubber-coated roller 31 can be provided with a hollow layer inside to increase the deformation ability of the rubber-coated roller 31, thereby increasing the coverage area of the rubber-coated roller 31.

[0041] In the above scheme, the LCD screen is placed according to the position of the positioning block 10, then the polarizing sheet 6 is placed in the groove on the inclined sliding frame 2, then the inclined sliding frame 2 is moved to pre-paste one side of the polarizing sheet 6 to one side of the LCD screen on the positioning block 10, then the air cylinder 32 is started to move the rubber-coated roller 31 to the LCD screen and paste it to one side of the LCD screen. At this time, the air cylinder 32 is pushed to slide along the profile frame 1 to the inclined sliding frame 2, and the inclined sliding frame 2 is also slid, so that the polarizing sheet 6 is laminated on the LCD screen. The use process has low skill requirement for the user, and the use of the jig reduces the air bubbles between the polarizing sheet 6 and the LCD screen and increases the yield.

[0042] In still another embodiment of the present application, a recycling mechanism 5 is also included, which includes a winding frame 54 arranged in the inclined sliding frame 2, and a release film 61 arranged on the polarizing sheet 6. The winding frame 54 moves with the inclined sliding frame 2 in a predetermined direction to wind the release film 61.

[0043] Specifically, the winding frame 54 is rotationally connected to a supporting rod in the interior of the inclined slide frame 2, the polarizer 6 is provided with a release film 61, the release film 61 is used for protecting the pressure-sensitive adhesive on the polarizer 6 and needs to be torn off when the film is coated, the side of the release film 61 facing the pressure-sensitive adhesive is a slightly sticky side for connecting with the pressure-sensitive adhesive, and the other side of the release film 61 is a release side; when the inclined slide frame 2 slides towards the air cylinder 32, the winding frame 54 does not rotate, and the release film 61 is not wound at this time; when the air cylinder 32 is pushed to slide along the profile frame 1 towards the inclined slide frame 2 and drives the inclined slide frame 2 to slide together, the inclined slide frame 2 is pushed to slide to the other side, and at this time the winding frame 54 rotates with the inclined slide frame 2, so that the torn release film 61 is wound, facilitating subsequent recycling.

[0044] When one side of the polarizer 6 is pre-stuck to one side of the LCD screen, the release film 61 on one side of the polarizer 6 needs to be first torn off and turned down and arranged on the winding frame 54; at this time, with the continuous turning of the winding frame 54 during the film coating, the release film 61 on the polarizer 6 is torn off in real time while the film coating is continuously carried out.

[0045] Preferably, the inclined slide frame 2 is rotationally connected with a coupling wheel 55 and a transmission rod, and the two are transmissionally connected through a transmission belt 541; the transmission rod is fixedly connected with a ratchet wheel 5401 through a fastener; one side of the winding frame 54 is provided with a ring groove for the ratchet wheel 5401 to extend into; a pawl 540 is rotationally connected to the ring groove; and the pawl 540 is pushed against the ratchet wheel 5401 through an elastic member, so that unidirectional coupling is realized, that is, the inclined slide frame 2 is not coupled when it slides towards the air cylinder 32, and the inclined slide frame 2 is coupled when it is pushed by the air cylinder.

[0046] In still another embodiment of the present application, the low position of the inclined slide frame 2 is movably provided with a pushing block 52, which reciprocally moves along the vertical direction with the rotation of the winding frame 54 to intermittently contact the LCD screen with the slightly sticky side of the release film 61 torn from the polarizer 6.

[0047] Specifically, the inclined slide frame 2 is obliquely arranged to guide the polarizer 6 to have a certain angle when being pressed and coated on the LCD screen by the rubber-coating roller 31, so as to reduce the generation of air bubbles; the inclined slide frame 2 has a high position and a low position; the low position of the inclined slide frame 2 is movably provided with a pushing block 52; the low position of the inclined slide frame 2 is provided with a limiting plate to limit the pushing block 52 to slide only along the vertical direction; when the winding frame 54 rotates, the pushing block 52 reciprocally moves along the vertical direction to intermittently touch the LCD screen with the slightly sticky side of the release film torn from the polarizer 6, so as to play a role of secondary dust removal.

[0048] Preferably, the pushing block 52 is symmetrically connected with expansion plates 522, springs 523 are arranged between the two expansion plates 522, the springs 523 are used for controlling the opening range of the two expansion plates 522 to be in a constant position, when the pushing block 52 is driven to reciprocate and approach the LCD screen, the expansion plates 522 are away from each other due to the limitation of the LCD screen, at this time, the expansion plates 522 can prop open the release film 61 along the LCD screen, thereby expanding the contact surface of the release film 61 and the LCD screen, and increasing the dust removal effect.

[0049] Preferably, the low-position of the inclined slide 2 is rotatably connected with a retention roller 51, the retention roller 51 is provided with a plurality of needle parts 511 arranged in a circle, the needle parts 511 are used for retaining the release film 61, when the last polaroid 6 is replaced, the release film 61 of the last polaroid 6 is retained by the needle parts 511, and the slightly sticky surface of the release film 61 on the new polaroid 6 can be matched with the slightly sticky surface of the release film 61 retained by the needle parts 511, thereby connecting the two release films 61, and facilitating the winding of the winding frame 54.

[0050] In another embodiment of the present application, a tensioning block 53 is arranged between the pushing block 52 and the winding frame 54, the tensioning block 53 rotates along with the winding frame 54 and reciprocates in the vertical direction, and the reciprocating direction of the tensioning block 53 is the same as that of the pushing block 52.

[0051] Specifically, a groove for limiting the release film 61 is arranged on the tensioning block 53, the groove is made of Teflon, which can reduce the friction when the tensioning block 53 contacts the slightly sticky surface of the release film 61, when the winding frame 54 rotates, the tensioning block 53 reciprocates in the same direction as the pushing block 52, which can reduce the tension when the pushing block 52 is pushed out, and increase the tension when the pushing block 52 is retracted, thereby reducing the damage to the connection between the slightly sticky surfaces of the two release films 61 caused by the pushing block 52.

[0052] Preferably, sliding grooves 521 are arranged at both ends of the pushing block 52 and the tensioning block 53, a driving wheel 56 is rotatably connected to an inner support rod of the inclined slide 2, a sliding rod 561 is arranged on the driving wheel 56 and slidably connected to the sliding grooves 521, so as to form a crank rocker, thereby achieving the reciprocating movement of the pushing block 52 and the tensioning block 53. The driving wheel 56 arranged at one side of the pushing block 52 and the tensioning block 53 is provided with a transmission wheel 542, the two transmission wheels 542 are transmissionally connected through a transmission belt 541, and one of the transmission wheels 542 and the winding frame 54 are transmissionally connected through the transmission belt 541.

[0053] In still another embodiment of the present application, a pre-sticking assembly 4 is further included, which comprises a sliding plate 41 slidably connected to the profile frame 1, and a tapering pressing wheel 423 movably connected to the sliding plate 41. The rubber-coating roller 31 comprises a pre-pressing position, and the tapering pressing wheel 423 is driven to press and stick the polarizer 6 at the pre-pressing position along the sliding plate 41.

[0054] Specifically, the second slide rail 43 is fixedly connected to the profile frame 1 by fasteners, and the sliding plate 41 is slidably connected to the second slide rail 43. When the rubber-coating roller 31 moves with the air cylinder 32, it will be pre-positioned to the pre-pressing position and then move downward in the vertical direction. Before pressing, the polarizer 6 is slightly stuck to the pre-pressing position. Then, the sliding plate 41 is slid, and the tapering pressing wheel 423 is driven to move, pre-pressing the pre-pressing position to press a small "compaction line" by the large end of the tapering pressing wheel 423. Because the "compaction line" is small in size, it is not easy to appear bubbles. Then, the rubber-coating roller 31 is pressed along the "compaction line" and then moved, thereby reducing the bubbles generated in the pre-pressing process and further increasing the yield.

[0055] Preferably, the side wall of the profile frame 1 is provided with an elastic protrusion 44, the air cylinder 32 is provided with an air cylinder groove 322 corresponding to the elastic protrusion 44, and the sliding plate 41 is provided with a groove corresponding to the elastic protrusion 44. The elastic protrusion 44 is used to limit the air cylinder 32 and the sliding plate 41, so that the rubber-coating roller 31 and the tapering pressing wheel 423 are fixed to the pre-pressing position, and the accuracy of the "compaction line" and the rubber-coating roller 31 being driven by the air cylinder 32 to the pressing position is ensured.

[0056] Preferably, the small end of the tapering pressing wheel 423 is sequentially hinged with two sections of rotating connecting rods 421, and the terminal rotating connecting rod 421 is welded with a holding rod 42. The sliding plate 41 is provided with an extension table 412, and the extension table 412 is provided with a limiting rail groove 4121 for limiting the rotating connecting rod 421. The sliding plate 41 is provided with a waist circular track 411 for limiting the holding rod 42. When the tapering pressing wheel 423 is used, the holding rod 42 is operated to slide along one of the straight tracks of the waist circular track 411 to press the "compaction line". The spring sheet 422 is arranged between the rotating connecting rod 421 and the tapering pressing wheel 423 to drive them to bend. When the polarizer 6 is not pre-stuck, the release film 61 is torn off, and the slightly sticky surface of the release film 61 is stuck to the slightly sticky surface of another release film 61 on the retention roller 51. Then, the holding rod 42 is limited to slide along the other straight track of the waist circular track 411. The tapering pressing wheel 423 is driven to extend out of the sliding plate 41, loses the limitation, and makes the spring sheet 422 drive the tapering pressing wheel 423 to stick to the retention roller 51. At this time, the two release films 61 are connected by sliding.

[0057] In operation, first, the LCD screen is placed according to the position of the positioning block 10, and the polaroid 6 is placed in the groove on the inclined slide 2, the polaroid 6 extends 2-4 cm out of the groove 2, and the release film 61 on the polaroid 6 is torn off, and the slightly sticky surface of the release film 61 is attached to the slightly sticky surface of the other release film 61 on the retention roller 51, then the limiting handle 42 is slid along the other straight track of the waist circular track 411, at this time the conical pressure wheel 423 moves to attach the retention roller 51 to connect the two release films 61;

[0058] Then the handle 42 is moved to one of the straight tracks, and the polaroid 6 is slightly attached to the pre-pressing position, the handle 42 is slid on one of the straight tracks to press out the "compaction line", then the air cylinder 32 is moved to the elastic protrusion 44, and the sliding plate 41 is removed, the air cylinder is started by operating the lever 321, the rubber roller 31 is pressed along the "compaction line", and the air cylinder 32 is pushed to slide along the profile rack 1 to the inclined slide 2, and the inclined slide 2 is also slid, so that the polaroid 6 is laminated on the LCD screen;

[0059] During the lamination process, the winding frame 54 rotates with the inclined slide 2, so as to wind the torn release film 61, and the push block 52 reciprocates in the vertical direction, so that the two expansion plates 522 intermittently attach the slightly sticky surface of the release film 61 to the LCD screen to achieve the effect of dust removal.

[0060] The above only describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above figures and descriptions are illustrative in nature and should not be understood as limiting the scope of the claims of the present application.

Claims

1. A high efficiency stable cover polarizer device comprising a polarizer and an LCD screen, characterized in that, Also include the profile frame, which is respectively provided with: Positioning block, for fixing LCD screen; Sliding inclined slide, which is provided with a groove for carrying polaroid; Tape pressing mechanism, which includes two air cylinders symmetrically connected to the profile frame, the output end of the two air cylinders is rotatably connected with a rubber roller, the rubber roller is driven by the air cylinder to move along the LCD screen to press the polaroid; Also include recycling mechanism, which includes a winding frame arranged in the inclined slide, the polaroid is provided with a release film, the winding frame moves with the inclined slide in a predetermined direction to rotate and wind the release film; The low position of the inclined slide is movably provided with a push block, the push block moves reciprocally along the vertical direction with the winding frame to push the release film to intermittently contact the LCD screen; The push block is rotatably connected with an expansion plate, the expansion plate moves away from each other to expand the contact surface between the release film and the LCD screen; Also include a pre-tape assembly, which includes a sliding plate connected to the profile frame, the sliding plate is movably connected with a conical pressure wheel, the rubber roller includes a pre-pressing position, the conical pressure wheel is driven to press the polaroid at the pre-pressing position along the sliding plate; The side wall of the profile frame is provided with an elastic protrusion, the elastic protrusion is used to limit the air cylinder and the sliding plate, so that the rubber roller and the conical pressure wheel are fixed to the pre-pressing position; The inclined slide is rotatably connected with a retention roller, the conical pressure wheel is driven to extend out of the sliding plate to fit the retention roller; One end of the conical pressure wheel is rotatably connected with two sections of rotating link, the sliding plate is provided with a limiting rail slot for limiting the rotating link, the rotating link and the conical pressure wheel are provided with a spring sheet for driving them to bend.

2. The high efficient stable polarizer covered device according to claim 1, characterized in that, The push block and the winding frame are provided with a tensioning block, the tensioning block moves reciprocally along the vertical direction with the winding frame, and the reciprocating direction of the tensioning block is the same as that of the push block.

3. The high efficient stable polarizer covered device according to claim 2, characterized in that, The push block and the tensioning block are both provided with a sliding groove, the sliding groove is slidably connected with a drive wheel on the inclined slide.

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