Polaroid film mounting machine and polaroid film mounting method

Abstract

The present invention discloses a polarizer mounting machine, comprising: a first conveying mechanism for transporting a substrate to be mounted; an adsorption device, arranged on the first conveying mechanism, for adsorbing a polarizer body and horizontally attaching the adsorbed polarizer body to the substrate to be mounted; a second conveying mechanism, arranged on the right side of the first conveying mechanism, for transporting the substrate to be mounted with the polarizer body attached; a rolling compacting mechanism, arranged on the second conveying mechanism, for rolling and compacting the substrate to be mounted with the polarizer body attached during the transmission process. The present invention integrates the functions of automatic transport, automatic adsorption, automatic bonding and automatic rolling, has a high degree of automation, can greatly reduce the steps of polarizer mounting, reduce the difficulty of polarizer mounting, and can flexibly control the holding force of the compacting roller, thereby improving the polarizer mounting effect and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of polarizer attaching devices, and in particular to a polarizer attaching machine and a polarizer attaching method. Background Art

[0002] Display principle of polarizer: The principle of polarizer is that the display screen composed of thousands of liquid crystal balls can convert natural light into linear polarized light. Each light spot in the light spot group above is independently responsible for the display of the selected color and the brightness of the light. The performance function is to separate the incident linear light with polarized components, one part of which is allowed to pass, and the other part is absorbed, reflected, scattered, etc. to make it hidden, so that the color separation and pressure reduction can be controlled to control the image effect; when the polarizer is pasted, professional equipment and special methods are required to realize the polarizer pasting operation; polarizer pasting method is a method of pasting a polarizer on a formed liquid crystal glass substrate.

[0003] The equipment and methods currently used in the polarizer patching operation on the market are difficult to patch, the steps are extremely cumbersome, and the degree of automation is low. It often takes a long time to complete a certain number of polarizer patching work, and the number of patches is extremely small. At the same time, during the patching process, a compacting roller is often used to press the polarizer and the substrate to be mounted, so that the polarizer can be bonded to the substrate to be mounted, and the bonding effect is poor. During the pressing process, the substrate to be mounted is easily damaged due to excessive pressure from the compacting roller, which affects the patching efficiency of the polarizer. Summary of the invention

[0004] The object of the present invention is to provide a polarizer mounting machine and a polarizer mounting method to solve the problems of polarizer mounting difficulty, complicated mounting steps, low automation and mounting efficiency, and poor mounting effect proposed in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A polarizer bonding machine, comprising:

[0007] The first conveying mechanism is used to convey the substrate to be mounted;

[0008] The adsorption device is arranged on the first conveying mechanism, and is used for adsorbing the polarizer sheet and horizontally attaching the adsorbed polarizer sheet to the substrate to be attached;

[0009] The second conveying mechanism is arranged on the right side of the first conveying mechanism and is used to transport the substrate to be mounted with the polarizer body;

[0010] A rolling compacting mechanism is provided on the second conveying mechanism and is used for rolling and compacting the substrate to be mounted with the polarizer body during the transmission process;

[0011] A machine platform, used to support the first conveying mechanism and the second conveying mechanism;

[0012] The control box is arranged on the machine platform and is used for controlling the operation of the first conveying mechanism, the adsorption device, the second conveying mechanism and the rolling compacting mechanism to perform the automatic polarizer patch operation.

[0013] Preferably, the adsorption device includes a supporting part and an adsorption part, the supporting part is vertically fixed on the machine platform, the supporting part is a first bracket vertically fixed on the left side of the top of the machine platform, the adsorption part is installed on the supporting part, and the adsorption part is located directly above the first conveying mechanism.

[0014] Preferably, the adsorption part includes a suction fan installed on the top of the first bracket, an air induced draft column connected to the air outlet of the suction fan, and a suction tube installed laterally at the bottom of the air induced draft column, and suction nozzles for adsorbing the polarizer sheet are spaced apart at the bottom of the suction tube. The suction tube is flush with the transmission belt of the first conveying mechanism, and positioners are fixedly connected to both sides of the suction tube.

[0015] Preferably, the rolling compacting mechanism is installed above the machine through a supporting mechanism, which includes a second bracket vertically fixed to the right side of the top of the machine, a driving motor installed on the top of the second bracket, and an auxiliary wheel installed on the front of the first bracket and connected to the output shaft of the driving motor by belt drive.

[0016] Preferably, the rolling compaction mechanism includes a weight pushing down part and a rolling part connected to the bottom end of the weight pushing down part, and the weight pushing down part is used to adjust the gravity exerted on the rolling part to change the distance between the rolling part and the substrate to be mounted with the polarizer sheet.

[0017] Preferably, the weight-pushing part includes a movable column vertically passing through the top of the second bracket, a tray fixedly connected to the top of the movable column for supporting the weight, a gravity sensor installed at the bottom of the tray, and a spring movably mounted on the outer surface of the movable column; the rolling part includes a support plate fixedly connected to the bottom of the movable column, a rotating shaft laterally connected to the bottom of the support plate, and a compacting roller mounted on the outer surface of the rotating shaft; the front end of the rotating shaft is connected to the auxiliary wheel through a belt drive.

[0018] Preferably, the vertical height of the second conveying mechanism does not exceed the vertical height of the first conveying mechanism. Both the first conveying mechanism and the second conveying mechanism use motors, drive wheels and belts to carry out transmission. The motor of the first conveying mechanism is a stepping motor, and the motor of the second conveying mechanism is a variable speed motor.

[0019] A polarizer bonding method is used to bond a polarizer to the upper surface of a substrate to be bonded, comprising the steps of: taking out a polarizer body from a polarizer storage position by a polarizer conveying arm, placing the polarizer body at the bottom end of an adsorption device, and adsorbing the polarizer body carried by the conveying arm by the adsorption device;

[0020] The first conveying mechanism transports the substrate to be mounted, and relies on the cooperation of the stepping motor and the positioner to move the substrate to be mounted to be directly below the polarizer body. At this time, the adsorption device releases the polarizer body and allows the polarizer body to fall on the upper surface of the substrate to be mounted, that is, the polarizer body is initially attached to the upper surface of the substrate to be mounted;

[0021] After the polarizer sheet is initially attached to the substrate to be attached, it is transferred to the second conveying mechanism by the first conveying mechanism. The substrate to be attached with the polarizer sheet initially attached is transferred to the rolling and compacting mechanism by the second conveying mechanism. The substrate to be attached with the polarizer sheet is rolled by the rolling and compacting mechanism so that the polarizer sheet is firmly attached to the substrate to be attached, thereby completing the polarizer attachment operation.

[0022] Preferably, when the polarizer body is adsorbed and moved to directly above the first conveying mechanism, the mechanical claw at the end of the polarizer conveying arm clamps the release film at the bottom end of the polarizer body and tears off the release film, and then the substrate to be mounted is horizontally opposite to the polarizer body.

[0023] Preferably, when the rolling compacting mechanism performs a compacting operation on the polarizer sheet and the substrate to be mounted, during the compacting operation, weights of different weights can be added to the tray to press down the movable column, and the compacting roller is pressed downward to adjust the distance between the compacting roller and the substrate to be mounted, and then the pressing force of the compacting roller on the substrate to be mounted is adjusted.

[0024] The beneficial effects of the present invention are as follows: the present invention integrates the functions of automatic conveying, automatic adsorption, automatic bonding and automatic rolling, has a high degree of automation, can greatly reduce the steps of polarizer patching, and reduce the difficulty of polarizer patching. Under the action of the rolling compaction mechanism, the pressing force of the compaction roller can be flexibly controlled, and the occurrence of damage to the substrate to be patched due to excessive pressure of the compaction roller, which affects the patch efficiency of the polarizer, can be effectively prevented; at the same time, the polarizer body can be firmly bonded to the substrate to be patched, which greatly improves the patch efficiency of the polarizer and enhances the patch effect of the polarizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the polarizer mounting machine of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the first conveying mechanism and the adsorption device of the present invention;

[0027] Figure 3It is a structural schematic diagram of the support mechanism and the rolling compaction mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the rolling compaction mechanism of the present invention.

[0029] In the figure: 1 machine, 2 first conveying mechanism, 3 substrate to be mounted, 4 adsorption device, 41 first bracket, 42 suction fan, 43 air induction column, 44 suction tube, 45 positioner, 5 polarizer body, 6 second conveying mechanism, 7 support mechanism, 71 second bracket, 72 drive motor, 73 auxiliary wheel, 8 rolling compaction mechanism, 81 weight push-down part, 811 movable column, 812 tray, 813 weight, 814 gravity sensor, 815 spring, 82 rolling part, 821 support plate, 822 rotating shaft, 823 compaction roller, 9 control box. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-4 The present invention provides a polarizer bonding machine, comprising: a first conveying mechanism 2, used for conveying a substrate 3 to be bonded; an adsorption device 4, arranged on the first conveying mechanism 2, used for adsorbing a polarizer body 5 and horizontally bonding the adsorbed polarizer body 5 to the substrate 3 to be bonded; a second conveying mechanism 6, arranged on the right side of the first conveying mechanism 2, used for conveying the substrate 3 to be bonded with the polarizer body 5; a rolling compacting mechanism 8, arranged on the second conveying mechanism 6, used for rolling and compacting the substrate 3 to be bonded with the polarizer body 5 during the conveying process; a machine platform 1, used for supporting the first conveying mechanism 2 and the second conveying mechanism 6; a control box 9, arranged on the machine platform 1, used for controlling the operation of the first conveying mechanism 2, the adsorption device 4, the second conveying mechanism 6 and the rolling compacting mechanism 8 to perform automatic bonding operation of the polarizer.

[0032] Among them, the control box 9 is equipped with a display screen and a controller; the display screen can not only display the gravity sensed by the gravity sensor 814, that is, the overall gravity of the weight 813 on the tray 812 at this time, but also display the operating status of the polarizer mounter during operation; it should be noted that the controller can use a conventional DSP control chip on the market to digitally display the operating status of the polarizer mounter.

[0033] Furthermore, the adsorption device 4 includes a supporting part and an adsorption part. The supporting part is vertically fixed to the machine 1. The supporting part is a first bracket 41 vertically fixed to the left side of the top of the machine 1. The adsorption part is installed on the supporting part. The adsorption part is located directly above the first conveying mechanism 2.

[0034] Furthermore, the adsorption part includes a suction fan 42 installed on the top of the first bracket 41, an air induction column 43 connected to the air outlet of the suction fan 42, and a suction tube 44 installed horizontally at the bottom of the air induction column 43, and suction nozzles for adsorbing the polarizer sheet 5 are spaced apart at the bottom of the suction tube 44. The suction tube 44 is flush with the transmission belt of the first conveying mechanism 2, and positioners 45 are fixedly connected to both sides of the suction tube 44.

[0035] Furthermore, the rolling compaction mechanism 8 is installed above the machine platform 1 through a support mechanism 7, which includes a second bracket 71 vertically fixed to the right side of the top of the machine platform 1, a drive motor 72 installed on the top of the second bracket 71, and an auxiliary wheel 73 installed on the front of the first bracket 41 and connected to the output shaft of the drive motor 72 by belt drive.

[0036] Furthermore, the rolling compaction mechanism 8 includes a weight pushing down part 81 and a rolling part 82 connected to the bottom end of the weight pushing down part 81. The weight pushing down part 81 is used to adjust the gravity exerted on the rolling part 82 to change the distance between the rolling part 82 and the substrate 3 to be mounted with the polarizer sheet 5.

[0037] Furthermore, the weight-pushing portion 81 includes a movable column 811 that vertically passes through the top of the second bracket 71, a tray 812 fixedly connected to the top of the movable column 811 for supporting a weight 813, a gravity sensor 814 installed at the bottom of the tray 812, and a spring 815 movably sleeved on the outer surface of the movable column 811; the rolling portion 82 includes a support plate 821 fixedly connected to the bottom of the movable column 811, a rotating shaft 822 laterally connected to the bottom of the support plate 821, and a compacting roller 823 sleeved on the outer surface of the rotating shaft 822; the front end of the rotating shaft 822 is connected to the auxiliary wheel 73 through a belt drive; wherein the spring 815 mentioned can prevent the tray 812 and the top surface of the second bracket 71 from contacting each other during the deformation process, and can reduce the contact wear caused by the tray 812 to the second bracket 71 and the support plate 821 to the second bracket 71.

[0038] Furthermore, the vertical height of the second conveying mechanism 6 does not exceed the vertical height of the first conveying mechanism 2. Both the first conveying mechanism 2 and the second conveying mechanism 6 use motors, drive wheels and belts to carry out transmission work. The motor of the first conveying mechanism 2 is a stepping motor, and the motor of the second conveying mechanism 6 is a variable speed motor.

[0039] It should be noted that the gravity sensor 814, the positioner 45, the suction fan 42, the drive motor 72, the stepper motor used by the first conveying mechanism 2, and the variable speed motor used by the second conveying mechanism 6 can all adopt conventional models on the market, such as the Guangzhou Electric Test brand YZC-9NK type gravity sensor, the Youzhongli brand SSML type gravity sensor, the nut brand F5D type positioner, the M91C90GD4W1 type motor, the M425-412 type motor, the Leisai brand 42CM06 type stepper motor, etc. The structure and principle of the gravity sensor 814, the positioner 45, the suction fan 42, the stepper motor, the drive motor 72, and the variable speed motor are well-known technologies on the market, so they will not be elaborated here.

[0040] Among them, the suction fan 42 can adopt STANLEY Stanley series suction and blowing machine, which can realize two functions of suction and blowing. When the adsorption device 4 is used, when the polarizer body 5 is to be adsorbed on the suction tube 44, the suction effect of the suction fan 42 can be started, and the polarizer body 5 is firmly adsorbed on the bottom end of the suction tube 44. When the polarizer body 5 is to be placed on the substrate 3 to be mounted, the blowing effect of the suction fan 42 can be started, and the polarizer body 5 is quickly and horizontally blown on the upper surface of the substrate 3 to be mounted, thereby facilitating the polarizer mounting operation; under the action of the blowing force, the polarizer body 5 can be initially bonded to the upper surface of the substrate 3 to be mounted.

[0041] It should be noted that when the control box 9 is used to start the polarizer mounter, when the polarizer mounter is in operation, the first conveying mechanism 2, the adsorption device 4, the second conveying mechanism 6, and the driving motor 72 start to operate together; when the polarizer mounter is in operation, when the adsorption device 4 is used, the polarizer body 5 can be adsorbed on the suction tube 44, and the polarizer body 5 is aligned with the transmission direction of the first conveying mechanism 2. When the stepper motor, the transmission wheel and the belt are used, the substrate 3 to be mounted can be moved in a stepping manner toward the direction of the second conveying mechanism. When the positioner 45 is used, the substrate 3 to be mounted and the polarizer can be aligned. The sheet body 5 is positioned so that the substrate 3 to be mounted is placed directly below the polarizer sheet body 5, and the adsorbed polarizer sheet body 5 freely falls to the upper surface of the substrate 3 to be mounted to achieve the initial bonding of the polarizer; after the polarizer sheet body 5 is initially bonded to the substrate 3 to be mounted, it is transmitted to the second conveying mechanism 6, and through the transmission of the second conveying mechanism 6, the substrate 3 to be mounted with the polarizer sheet body 5 initially bonded is moved toward the rolling and compacting mechanism 8, and through the set compacting roller 823, the substrate 3 to be mounted with the polarizer sheet body 5 is rolled during the transmission process, so that the polarizer sheet body 5 is firmly bonded to the substrate 3 to be mounted.

[0042] When the driving motor 72 is in operation, it drives the auxiliary wheel 73 to rotate in a circle through belt transmission, and drives the compaction roller 823 to rotate synchronously under the action of the belt transmission, so that the running direction of the driving motor 72 drives the compaction roller 823 to rotate synchronously counterclockwise. At this time, the rolling direction of the compaction roller 823 is opposite to the transmission direction of the second conveying mechanism 6.

[0043] The first bracket 41 and the second bracket 71 both include four groups of columns vertically fixed on the top of the machine 1 and a horizontal plate fixed on the top of the columns. The first bracket 41 and the second bracket 71 respectively support the adsorption device 4 and the rolling compaction mechanism 8.

[0044] The present invention also provides a polarizer mounting method, using the polarizer mounting machine mentioned above to mount the polarizer on the upper surface of the substrate 3 to be mounted, comprising the steps of:

[0045] A polarizer sheet 5 is taken out from the polarizer storage position by the polarizer conveying arm, and the polarizer sheet 5 is placed at the bottom of the adsorption device 4, and the polarizer sheet 5 carried by the conveying arm is adsorbed by the adsorption device 4; the first conveying mechanism 2 transfers the substrate 3 to be mounted, and moves the substrate 3 to be mounted to the bottom of the polarizer sheet 5 by the cooperation of the stepping motor and the positioner 45, and at this time, the adsorption device 4 releases the polarizer sheet 5, allowing the polarizer sheet 5 to fall on the upper surface of the substrate 3 to be mounted , that is, the polarizer body 5 is initially attached to the upper surface of the substrate 3 to be mounted; after the polarizer body 5 is initially attached to the substrate 3 to be mounted, it is transferred to the second conveying mechanism 6 by the first conveying mechanism 2, and the substrate 3 to be mounted with the polarizer body 5 initially attached is transferred to the position of the rolling compacting mechanism 8 by the second conveying mechanism 6, so that the substrate 3 to be mounted with the polarizer body 5 is rolled by the rolling compacting mechanism 8, so that the polarizer body 5 is firmly attached to the substrate 3 to be mounted, and the polarizer mounting operation is completed.

[0046] Among them, when the polarizer body 5 is adsorbed and moved to the top of the first conveying mechanism 2, the mechanical claw at the end of the polarizer conveying arm clamps the release film at the bottom of the polarizer body 5 and tears off the release film, and then the substrate 3 to be mounted is horizontally opposite to the polarizer body 5.

[0047] Among them, when the rolling compacting mechanism 8 performs a compacting operation on the polarizer sheet 5 and the substrate to be mounted 3, during the compacting operation, weights 813 of different weights can be added to the tray 812 to press down the movable column 811, and the compacting roller 823 can be pressed downward to adjust the distance between the compacting roller 823 and the substrate to be mounted 3, and then adjust the pressing force of the compacting roller 823 on the substrate to be mounted 3; among them, the use of the gravity sensor 814 can detect the gravity of the weight 813 thrown on the tray 812, and under the action of the control box 9, the gravity value at this time can be digitally displayed.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A polarizer mounter, characterized in that: include: The first conveying mechanism is used to convey the substrate to be mounted; The adsorption device is arranged on the first conveying mechanism, and is used for adsorbing the polarizer sheet and horizontally attaching the adsorbed polarizer sheet to the substrate to be attached; A second conveying mechanism is arranged on the right side of the first conveying mechanism, and is used to transport the substrate to be mounted with the polarizer body, and the vertical height of the second conveying mechanism does not exceed the vertical height of the first conveying mechanism; A rolling compacting mechanism is provided on the second conveying mechanism and is used for rolling and compacting the substrate to be mounted with the polarizer body during the transmission process; A machine platform, used to support the first conveying mechanism and the second conveying mechanism; The control box is arranged on the machine platform and is used for controlling the operation of the first conveying mechanism, the adsorption device, the second conveying mechanism and the rolling compacting mechanism to perform the automatic polarizer patch operation.

2. The polarizer mounting machine according to claim 1, characterized in that: The adsorption device includes a support part and an adsorption part. The support part is vertically fixed on the machine platform. The support part is a first bracket vertically fixed on the left side of the top of the machine platform. The adsorption part is installed on the support part. The adsorption part is located directly above the first conveying mechanism.

3. The polarizer mounting machine according to claim 2, characterized in that: The adsorption part includes a suction fan installed on the top of the first bracket, an air induced column connected to the air outlet of the suction fan, and a suction tube installed horizontally at the bottom of the air induced column. Suction nozzles for adsorbing the polarizer sheet are spaced apart at the bottom of the suction tube. The suction tube is flush with the transmission belt of the first conveying mechanism, and positioners are fixedly connected to both sides of the suction tube.

4. The polarizer mounting machine according to claim 1, characterized in that: The rolling compaction mechanism is installed above the machine platform through a supporting mechanism, which includes a second bracket vertically fixed to the right side of the top of the machine platform, a driving motor installed on the top of the second bracket, and an auxiliary wheel installed on the front of the first bracket and connected to the output shaft of the driving motor by belt drive.

5. The polarizer mounting machine according to claim 1 or 4, characterized in that: The rolling compaction mechanism includes a weight pushing down part and a rolling part connected to the bottom end of the weight pushing down part. The weight pushing down part is used to adjust the gravity exerted on the rolling part to change the distance between the rolling part and the substrate to be mounted with the polarizer body.

6. The polarizer mounting machine according to claim 5, characterized in that: The weight-pushing part includes a movable column vertically passing through the top of the second bracket, a tray fixedly connected to the top of the movable column for supporting the weight, a gravity sensor installed at the bottom of the tray, and a spring movably sleeved on the outer surface of the movable column; the rolling part includes a support plate fixedly connected to the bottom of the movable column, a rotating shaft laterally connected to the bottom of the support plate, and a compacting roller sleeved on the outer surface of the rotating shaft; the front end of the rotating shaft is connected to the auxiliary wheel through a belt drive.

7. The polarizer mounting machine according to claim 1, characterized in that: The first conveying mechanism and the second conveying mechanism both use a motor, a transmission wheel and a belt to cooperate for transmission. The motor of the first conveying mechanism uses a stepping motor, and the motor of the second conveying mechanism uses a variable speed motor.

8. A polarizer bonding method, for bonding a polarizer to the upper surface of a substrate to be bonded, characterized in that: Includes steps: Providing a polarizer mounting machine as described in any one of claims 1 to 7; Taking out a polarizer sheet from the polarizer storage position by means of a polarizer conveying arm, placing the polarizer sheet at the bottom of an adsorption device, and adsorbing the polarizer sheet conveyed by the conveying arm by means of the adsorption device; The first conveying mechanism transports the substrate to be mounted, and relies on the cooperation of the stepping motor and the positioner to move the substrate to be mounted to be directly below the polarizer body. At this time, the adsorption device releases the polarizer body and allows the polarizer body to fall on the upper surface of the substrate to be mounted, that is, the polarizer body is initially attached to the upper surface of the substrate to be mounted; After the polarizer sheet is initially attached to the substrate to be attached, it is transferred to the second conveying mechanism by the first conveying mechanism. The substrate to be attached with the polarizer sheet initially attached is transferred to the rolling and compacting mechanism by the second conveying mechanism. The substrate to be attached with the polarizer sheet is rolled by the rolling and compacting mechanism so that the polarizer sheet is firmly attached to the substrate to be attached, thereby completing the polarizer attachment operation.

9. The polarizer attaching method according to claim 8, characterized in that: When the polarizer body is adsorbed and moved to the top of the first conveying mechanism, the mechanical claw at the end of the polarizer conveying arm clamps the release film at the bottom of the polarizer body and tears off the release film, and then the substrate to be mounted is horizontally opposite to the polarizer body.

10. The polarizer attaching method according to claim 8, characterized in that: When the rolling compacting mechanism compacts the polarizer sheet and the substrate to be mounted, during the compacting operation, weights of different weights can be added to the tray to press down the movable column, and the compacting roller is pressed downward to adjust the distance between the compacting roller and the substrate to be mounted, and then the pressing force of the compacting roller on the substrate to be mounted is adjusted.

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