Polarizer roller flatness checking device

Abstract

The utility model discloses a polaroid roller flatness checking device which comprises a supporting base, and checking tables are arranged on the two sides of the surface of the supporting base in a sliding and sleeving mode. The verification space is arranged on the verification tables, and the two verification tables are communicated with each other; the tension spring is jointly connected between the two checking tables, and the two checking tables are in a close fit state under the tension action of the tension spring; and the pressure sensing paper is laid on the checking table through the checking space and is used for carrying out rolling test on the polaroid roller. According to the polaroid roller flatness checking device provided by the utility model, the pressure sensing paper is laid on the checking table, so that the polaroid roller can be rolled on the surface of the pressure sensing paper, and the pressure sensing paper can present a certain color under the pressure of the roller because the roller has a certain gravity, so that the flatness of the polaroid roller can be checked. Therefore, whether the surface of the roller is convex or concave or not can be judged according to the color uniformity presented by the pressure sensing paper, and the flatness of the polaroid roller is effectively verified.

Description

Technical Field

[0001] The utility model relates to the technical field of polarizing films, in particular to a polarizing film roller flatness calibration device. Background Art

[0002] To put it simply, the LCD module is a screen + backlight assembly. The display component of an LCD TV is the LCD module, which is equivalent to the cathode ray tube in a CRT. Other parts include power circuits, signal processing circuits, and of course, the outer shell. The module is mainly divided into a screen and a backlight assembly. The two parts are assembled together, but they are independent of each other when working (that is, the circuits are not related). The principle of LCD display is that the backlight assembly emits uniform surface light, which is transmitted to our eyes through the LCD screen. The function of the screen is to process these lights by pixels to display images.

[0003] In its manufacturing process, the upper and lower polarizers need to be attached to the front and back sides of the LCD. The polarizers are attached by rollers. When the rollers are used for a long time, the surface of the rollers may be worn and deformed, resulting in different pressures applied to the polarizer at different positions of the rollers when the polarizers are attached. The raised parts of the rollers will cause excessive pressure on the polarizers at the corresponding positions, causing indentation damage to the polarizers, while the missing parts of the roller surface may cause insufficient pressure and cause the polarizers to not be attached properly. Therefore, a polarizer roller flatness calibration device is proposed. Utility Model Content

[0004] Based on this, it is necessary to provide a polarizer roller flatness calibration device to address the above technical problems. By laying the pressure-sensitive paper on the calibration table, the polarizer roller can be rolled on the surface of the pressure-sensitive paper. Since the roller has a certain gravity, the pressure-sensitive paper will show a certain color under the pressure of the roller. Therefore, it is possible to judge whether there are protrusions or depressions on the roller surface by the color uniformity of the pressure-sensitive paper.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A polarizer roller flatness inspection device, comprising:

[0007] A support base, with a calibration table slidably sleeved on both sides of the support base surface;

[0008] A calibration space, which is arranged on a calibration table, and two of the calibration tables are connected to each other;

[0009] A tension spring is fixed to the bottom of the test bench and connected to the outer side of the support base. The two test benches are in a close fit state due to the tension of the tension spring.

[0010] The pressure-sensitive paper is laid on the calibration table through the calibration space for roller pressure testing of the polarizer roller, wherein both sides of the calibration space are provided with pressing members for pressing and positioning the pressure-sensitive paper;

[0011] The pressing member comprises a housing fixed in the inspection table, a sliding column slidably arranged in the housing, and a pressing block fixed on the surface of the sliding column, and a return spring is connected between the sliding column and the housing;

[0012] The pressing block is pressed against the surface of the pressure-sensitive paper toward the checking table by the action of the return spring.

[0013] Furthermore, a bevel platform is provided at the edge of one side of the inspection platform, and a resistance piece is provided between the bevel platforms on two inspection platforms.

[0014] Furthermore, the abutment member comprises a abutment head, and four corners of the abutment head are formed with arc chamfers.

[0015] Furthermore, a support seat is fixedly connected to one side of the abutment head, and the support seat is slidably assembled with the support base, and the support seat can slide along the width direction of the support base.

[0016] Furthermore, decompression elements are distributed on both sides of the surface of the support base.

[0017] Furthermore, the decompression element includes a connecting rod, an interference ball and an interference seat fixed on the support base;

[0018] One end of the connecting rod is connected to the top end of the corresponding sliding column, and the other end is fixed to the abutment ball.

[0019] Furthermore, the surface of the interference seat has an interference table surface, and the interference ball can form an interference with the interference table surface to lift the connecting rod.

[0020] Furthermore, support pads are provided at the four corners of the bottom of the support base.

[0021] Furthermore, there are four abutment seats in total, and the abutment seats located on the same side form a group, and one side of the two abutment seats in each group is commonly provided with a protective side plate fixed to the support base.

[0022] Furthermore, two ends of the verification table are provided with through slots, which are connected with the verification space to allow the polarizer roller to pass through.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The polarizer roller flatness inspection device provided by the utility model can make the polarizer roller roll on the surface of the pressure-sensitive paper by laying the pressure-sensitive paper on the inspection table. Since the roller has a certain gravity, the pressure-sensitive paper will show a certain color under the pressure of the roller, so that it can be judged whether there are convexities or concaveities on the roller surface by the color uniformity of the pressure-sensitive paper, and the flatness inspection of the polarizer roller is effectively realized.

[0025] At the same time, before testing, the two test tables can be relatively separated to facilitate the insertion of the pressure-sensitive paper, and after insertion, the pressure-sensitive paper is fixed at the four corners by the clamping parts, thereby ensuring the stability of the pressure-sensitive paper during the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of the polarizer roller flatness calibration device provided by the utility model;

[0027] Figure 2 A schematic diagram of the second structural form of the polarizer roller flatness calibration device provided by the utility model;

[0028] Figure 3 A schematic diagram of the top view of the polarizer roller flatness calibration device provided by the utility model;

[0029] Figure 4 The utility model provides a polarizer roller flatness calibration device Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 5 A partial structural schematic diagram of a polarizer roller flatness calibration device provided by the utility model;

[0031] Figure 6 A side structural schematic diagram of a polarizer roller flatness calibration device provided by the utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the tension spring connection state of the polarizer roller flatness calibration device provided by the utility model.

[0033] The markings in the figure are as follows:

[0034] Support base 1, inspection table 11, inspection space 12, tension spring 13, contact head 14, support seat 15, support foot pad 16, protective side plate 17, through slot 18;

[0035] Inclined table 110;

[0036] Pressure sensitive paper 2;

[0037] The pressing member 3, the housing 31, the sliding column 32, the pressing block 33, and the return spring 34;

[0038] Decompression element 4 , connecting rod 41 , abutment ball 42 , abutment seat 43 , and abutment table 44 . DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0040] As mentioned in the background technology, in its manufacturing process, the upper and lower polarizers need to be attached to the front and back sides of the LCD. The polarizers are attached by rollers. When the rollers are used for a long time, the surface of the rollers may be worn and deformed, resulting in different pressures applied to the polarizers at different positions of the rollers when the polarizers are attached. The raised parts of the rollers will cause excessive pressure on the polarizers at the corresponding positions, causing indentation damage to the polarizers.

[0041] In order to solve this technical problem, the utility model provides a polarizer roller flatness calibration device, which is used for attaching polarizers.

[0042] Specifically, please refer to Figure 1-Figure 7 , the polarizer roller flatness calibration device specifically includes:

[0043] A support base 1, with a calibration table 11 slidably sleeved on both sides of the surface of the support base 1;

[0044] A verification space 12, which is arranged on the verification table 11, and the two verification tables 11 are connected to each other;

[0045] A tension spring 13 is fixed to the bottom of the test bench 11 and connected to the outer side of the support base 1. Under the tension of the tension spring 13, the two test benches 11 are in a close fit state;

[0046] The pressure-sensitive paper 2 is laid on the inspection table 11 through the inspection space 12 for the roller pressure test of the polarizer roller, wherein both sides of the inspection space 12 are provided with pressing members 3 for pressing and positioning the pressure-sensitive paper 2;

[0047] The pressing member 3 includes a housing 31 fixed in the test bench 11, a sliding post 32 slidably arranged in the housing 31, and a pressing block 33 fixed on the surface of the sliding post 32. A return spring 34 is connected between the sliding post 32 and the housing 31.

[0048] Under the action of the return spring 34 , the pressing block 33 is pressed against the surface of the pressure-sensitive paper 2 toward the checking table 11 .

[0049] The polarizer roller flatness calibration device provided by the utility model can make the polarizer roller roll on the surface of the pressure-sensitive paper 2 by laying the pressure-sensitive paper 2 on the calibration table 11. Since the roller has a certain gravity, the pressure-sensitive paper 2 will show a certain color under the pressure of the roller, so that it can be judged whether there are protrusions or depressions on the roller surface by the color uniformity of the pressure-sensitive paper 2, and the flatness calibration of the polarizer roller is effectively realized. At the same time, before the detection, the two calibration tables 11 can be relatively separated to allow the pressure-sensitive paper to be placed, and after the placement, the pressure-sensitive paper 2 is fixed at the four corners by the clamping member 3, thereby ensuring the stability of the pressure-sensitive paper during the detection process.

[0050] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0051] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0053] Please refer to Figure 1-Figure 7 , a polarizer roller flatness inspection device, a support base 1, a inspection table 11 is slidably sleeved on both sides of the support base 1 surface; a inspection space 12, which is arranged on the inspection table 11, and the two inspection tables 11 are connected to each other; a tension spring 13, which is fixed to the bottom of the inspection table 11 and connected to the outer side of the support base 1, and the two inspection tables 11 are in a close fitting state under the tension of the tension spring 13; a pressure-sensitive paper 2, which is laid on the inspection table 11 through the inspection space 12 for the roller pressure test of the polarizer roller, wherein the two sides located inside the inspection space 12 are provided with a pressing member 3 for pressing and positioning the pressure-sensitive paper 2;

[0054] The pressing member 3 includes a housing 31 fixed in the test bench 11, a sliding post 32 slidably arranged in the housing 31, and a pressing block 33 fixed on the surface of the sliding post 32. A return spring 34 is connected between the sliding post 32 and the housing 31.

[0055] The pressing block 33 is pressed against the surface of the pressure-sensitive paper 2 toward the checking table 11 by the action of the return spring 34. Figure 1 and Figure 4As shown, the return spring 34 will pull the pressing block 33 on the sliding column 32 connected thereto to fit the surface of the inspection table 11 to form a pressing state under the natural state.

[0056] Please refer to Figure 5 , 6 A bevel platform 110 is provided at the edge of one side of the inspection platform 11, and a conflicting member is provided between the bevel platforms 110 on the two inspection platforms 11;

[0057] The abutment member includes an abutment head 14, and the four corners of the abutment head 14 are all formed with arc chamfers;

[0058] A support seat 15 is fixedly connected to one side of the abutment head 14, and the support seat 15 is slidably assembled with the support base 1. The support seat 15 can slide along the width direction of the support base 1. Support pads 16 are provided at the four corners of the bottom of the support base 1.

[0059] Before checking the flatness of the polarizer roller, the support seat 15 is pushed to slide on the surface of the support base 1. During the sliding process, the support seat 15 will drive the abutment head 14 on it to form a conflict with the inclined platform 110. The inclined platform 11 subjected to the resistance force will slide in the direction away from the support base 15, so that the tension spring 13 is stretched, so that a gap is formed between the two checking spaces 12. By increasing the distance between the two checking spaces 12, it is convenient to place the pressure-sensitive paper 2 on the checking platform 11. After the pressure-sensitive paper 2 is placed on the checking platform 11, the pressing block 33 is pulled by the force of the reset spring 34, so that the pressing block 33 can be pressed against the surface of the pressure-sensitive paper 2, thereby ensuring the stability of the pressure-sensitive paper 2 at the four corners. Then, the polarizer roller is rolled on the surface of the sensing paper 2. After rolling for one circle, the color uniformity of the pressure-sensitive paper 2 is used to judge whether there are protrusions or depressions on the roller surface, so as to complete the flatness check of the polarizer roller.

[0060] The polarizer roller flatness calibration device provided in Example 1 is further optimized. Specifically, Figure 4 , Figure 5 and Figure 6 As shown, decompression elements 4 are distributed on both sides of the surface of the support base 1;

[0061] The decompression element 4 includes a connecting rod 41, a contact ball 42 and a contact seat 43 fixed on the support base 1. One end of the connecting rod 41 is connected to the top of the corresponding sliding column 32, and the other end is fixed to the contact ball 42.

[0062] The surface of the contact seat 43 has a contact surface 44, and the contact ball 42 can contact the contact surface 44 to lift the connecting rod 41;

[0063] In the first embodiment, when the two inspection tables 11 are separated from each other by pushing the support seat 15 to drive the abutment head 14 to abut against the inclined table 110, the inspection tables 11 that are away from each other in the sliding state will drive the shell 31 thereon to slide synchronously. When the shell 31 slides, when the sliding column 32 and the connecting rod 41 thereon slide synchronously outward, the abutment ball 43 on the connecting rod 41 will form a abutment with the abutment table surface 44. The abutment ball 43 subjected to the abutment force will drive the connecting rod 41 and the sliding column 32 thereon to slide upward, so that the reset spring 34 is stretched. When the sliding column 32 slides upward, the pressing block 33 connected thereto will be lifted off the inspection table 11, so that the pressure-sensitive paper 2 placed therein can be placed and laid flat through the lifted space.

[0064] After the pressure-sensitive paper 2 is placed, the support seat 15 is released to reset by the tension of the tension spring 13, so that the two verification tables 11 slide and reset. After the sliding reset, the contact ball 42 releases the interference with the contact table surface 44, so the connecting rod 41 and the sliding column 32 thereon will fall back to their positions. When the sliding column 32 falls back, the clamping block 33 thereon will press toward the direction of the pressure-sensitive paper 2. When the two verification tables 11 are finally close to each other, the clamping block 33 presses on the pressure-sensitive paper 2 to complete the positioning function, and the subsequent rotation calibration test of the polarizer roller can be carried out.

[0065] The polarizer roller flatness calibration device provided in Example 1 or 2 is further optimized, such as Figure 1-Figure 7 As shown, there are four abutment seats 43 in total, and the abutment seats 43 on the same side are grouped together. One side of the two abutment seats 43 in each group is provided with a protective side plate 17 fixed to the support base 1;

[0066] By providing the protective side plate 17, the abutment seat 43 can be protected, effectively avoiding interference from the outside world on the abutment area between the abutment table 44 and the abutment ball 42;

[0067] Both ends of the inspection table 11 are provided with through slots 18, which are connected with the inspection space 12 for the polarizer roller to pass through, so that the polarizer roller can roll in and out during inspection.

[0068] The use process of the polarizer roller flatness test device provided by the utility model is as follows: before the polarizer roller flatness is tested, the support seat 15 is pushed to slide on the surface of the support base 1. During the sliding process, the abutment head 14 and the inclined table 110 form a conflict, so that the two test spaces 12 are separated by a small distance. The distance between the test spaces 12 increases the relative space area of ​​the test spaces 12, thereby facilitating the placement of the induction paper 2. At the same time, during the process of the test table 11 sliding away, the abutment seat 43 connected thereto will contact the abutment table surface 4 4, so that the pressing block 33 is lifted above the inspection table 11, and then the pressure-sensitive paper 2 is placed in the two inspection spaces 12, and the support seat 15 is released. The two inspection tables 11 slide and reset, and the resistance balls 42 and the resistance table surface 44 thereon are released from the resistance state. The pressing block 33 is pressed down on the surface of the sensing paper 2 by the pulling force of the reset spring 34 to form a pressure-locked positioning, and then the polarizer roller is rolled on the sensing paper 2 for one circle. Whether there is a convexity or concave on the roller surface is judged by the color uniformity presented by the pressure-sensitive paper 2, so as to complete the flatness inspection of the polarizer roller.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A polarizer roller flatness inspection device, characterized in that: It includes: A support base (1), wherein a calibration table (11) is slidably sleeved on both sides of the surface of the support base (1); A calibration space (12), which is arranged on the calibration table (11), and the two calibration tables (11) are connected to each other; A tension spring (13) is fixed to the bottom of the test platform (11) and connected to the outer side of the support base (1). The tension of the tension spring (13) causes the two test platforms (11) to be in a close fit state; A pressure-sensitive paper (2) is laid on the calibration table (11) through a calibration space (12) for roller pressure testing of a polarizing film roller, wherein pressing members (3) are provided on both sides of the calibration space (12) for pressing and positioning the pressure-sensitive paper (2); The pressing member (3) comprises a housing (31) fixed in the inspection table (11), a sliding column (32) slidably arranged in the housing (31), and a pressing block (33) fixed to the surface of the sliding column (32); a return spring (34) is connected between the sliding column (32) and the housing (31); The pressing block (33) is pressed against the surface of the pressure-sensitive paper (2) toward the calibration table (11) by the action of the return spring (34).

2. The polarizer roller flatness calibration device according to claim 1, characterized in that: An inclined surface platform (110) is provided at the edge of one side of the inspection platform (11), and a resisting member is provided between the inclined surface platforms (110) on the two inspection platforms (11).

3. The polarizer roller flatness calibration device according to claim 2, characterized in that: The abutment member comprises a abutment head (14), and arc chamfers are formed at four corners of the abutment head (14).

4. The polarizer roller flatness calibration device according to claim 3, characterized in that: A support seat (15) is fixedly connected to one side of the abutment head (14), and the support seat (15) is slidably assembled with the support base (1), and the support seat (15) can slide along the width direction of the support base (1).

5. The polarizer roller flatness calibration device according to claim 1, characterized in that: Decompression elements (4) are distributed on both sides of the surface of the support base (1).

6. The polarizer roller flatness calibration device according to claim 5, characterized in that: The decompression element (4) comprises a connecting rod (41), a contact ball (42), and a contact seat (43) fixed on the support base (1); One end of the connecting rod (41) is connected to the top end of the corresponding sliding column (32), and the other end is fixed to the abutment ball (42).

7. The polarizer roller flatness inspection device according to claim 6, characterized in that: The surface of the interference seat (43) is provided with an interference table surface (44), and the interference ball (42) can interfere with the interference table surface (44) to lift the connecting rod (41).

8. The polarizer roller flatness inspection device according to claim 1, characterized in that: Support pads (16) are provided at the four corners of the bottom of the support base (1).

9. The polarizer roller flatness inspection device according to claim 6, characterized in that: There are four abutment seats (43) in total. The abutment seats (43) located on the same side form a group. One side of the two abutment seats (43) in each group is provided with a protective side plate (17) fixed to the support base (1).

10. The polarizer roller flatness inspection device according to claim 1, characterized in that: Passing slots (18) are also provided at both ends of the inspection table (11), and the passing slots (18) are connected to the inspection space (12) to allow the polarizer roller to pass through.

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