Sheet curling improving device

Abstract

The utility model discloses a sheet curling improvement device, which comprises a first steering wheel, a third steering wheel, a first clamping wheel, a second clamping wheel and a winding wheel, the first steering wheel is arranged at the upper part of one side of the device, the third steering wheel is arranged right below the first steering wheel, the axis of the third steering wheel and the axis of the first steering wheel are arranged on the same straight line, and the second steering wheel is arranged right below the second steering wheel. The first clamping wheel is arranged at the lower position of one side of the first steering wheel, the second clamping wheel is arranged below the first clamping wheel, the horizontal position of the axis of the second clamping wheel is higher than the horizontal position of the axis of the third steering wheel, the winding wheel is arranged on the opposite side of the first steering wheel, and the horizontal position of the axis of the winding wheel is higher than the horizontal position of the axis of the first clamping wheel. The original technology does not need to solve the problem of external positive curl abnormity. And only the outer positive curled sheet can be recovered. According to the existing patent technology, the coiled material is recovered firstly, the curling value is within the range during cutting, the shipment rate and the yield can be effectively guaranteed, and the sheet curling recovery operation is reduced.

Description

Technical Field

[0001] The utility model relates to the field of improving the curling of polarizing film sheets, in particular to a device for improving the curling of sheets. Background Art

[0002] At present, most of the small and medium-sized coils have abnormal curling and need to be laminated. Because the positive curl of the protective film is large when it is torn in the direction perpendicular to the flow direction during processing, the outer positive curl perpendicular to the flow direction during processing after the original lamination cannot meet the customer's standard. As a result, a large number of abnormal outer positive curling occurs, and the curling recovery inventory is large, which is difficult to recover and difficult to meet the shipment. The outer positive curling of the sheet is abnormal, and it is restored by bending it with a barrel and placing it in a high-temperature room. After standing at high temperature for a period of time, the outer curling is restored. There are many sheet damages and film ruptures in the recovery, and the yield rate is about 80%. And the recovery capacity is limited. Utility Model Content

[0003] The purpose of the utility model is to provide a polarizing plate material bin and a loading and unloading device to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sheet curling improvement device, comprising a first steering wheel, a third steering wheel, a first clamping wheel, a second clamping wheel, and a winding wheel, wherein the first steering wheel is arranged on the upper part of one side of the device, the third steering wheel is arranged directly below the first steering wheel, the axes of the third steering wheel and the first steering wheel are arranged on a straight line, the first clamping wheel is arranged at a lower position on one side of the first steering wheel, and the second clamping wheel is arranged below it, the horizontal position of the axis of the second clamping wheel is higher than the horizontal position of the axis of the third steering wheel, the winding wheel is arranged on the opposite side of the first steering wheel, and the horizontal position of the axis of the second clamping wheel is higher than the horizontal position of the axis of the first clamping wheel. After the sheet is wound up by the winding wheel, it is taken out from the winding wheel and then put into the oven.

[0005] Furthermore, a sheet curling improvement device also includes a separation wheel and a second steering wheel, wherein the separation wheel is arranged on one side of the horizontal position of the first steering wheel, and the axes of the two are on a straight line, and the second steering wheel is arranged below the separation wheel and the first steering wheel, and its axis is arranged in the middle of the two straight lines where the axes of the separation wheel and the first steering wheel are located.

[0006] Furthermore, a sheet curling improvement device also includes a fourth steering wheel, wherein a separation wheel, a first steering wheel, a second steering wheel, and a third steering wheel are arranged on one side of the first clamping wheel and the second clamping wheel, and a fourth steering wheel is arranged on the other side.

[0007] Furthermore, a sheet curling improvement device also includes a rotating shaft, wherein the separation wheel, the first steering wheel, the second steering wheel, the third steering wheel, the fourth steering wheel, the first clamping wheel, the second clamping wheel, and the winding wheel axis are all provided with a rotating shaft that runs through each wheel.

[0008] Furthermore, a sheet curling improvement device further includes side plates, wherein the side plates are arranged on both sides of a sheet curling improvement device, and both ends of the rotating shaft are respectively arranged on one side plate.

[0009] Furthermore, a sheet curling improvement device further includes rotating shaft grooves, wherein a plurality of rotating shaft grooves are respectively arranged on two side plates. The rotating shaft grooves are strip-shaped, and one end of the rotating shaft can respectively move inside the rotating shaft groove where it is located. The rotating shafts of the first steering wheel, the third steering wheel, the fourth steering wheel, and the second clamping wheel are respectively arranged inside one rotating shaft groove. For the rotating shaft groove where the rotating shaft of the first steering wheel is located, the horizontal position of the upper end of the rotating shaft groove is higher than the horizontal position of the axis of the separating wheel, and the horizontal position of the lower end is lower than the horizontal position of the axis of the separating wheel. For the rotating shaft groove where the rotating shaft of the second clamping wheel is located, the horizontal position of the lower end is higher than the horizontal position of the upper end of the rotating shaft groove where the rotating shaft of the third steering wheel is located. For the rotating shaft groove where the rotating shaft of the fourth steering wheel is located, the horizontal position of the upper end is higher than the horizontal position of the axis of the first clamping wheel, and the horizontal position of the lower end is lower than the highest position of the rotating shaft groove where the rotating shaft of the second clamping wheel is located.

[0010] Furthermore, after the sheet enters the oven, the set temperature of the oven is 30°C to 40°C, the humidity is 50% to 60%, and the standing time is 24 hours to 96 hours.

[0011] Compared with the prior art, the present utility model has the following advantages:

[0012] The prior art does not need to solve the problem of external positive curling abnormality. It can only restore the externally positively curled sheet that has occurred. The present patented technology first performs coil restoration. When cutting, the curling value is already within the range, which can effectively ensure the shipment and the yield rate, and reduce the operation of sheet curling restoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of a sheet curling improvement device.

[0014] Among them,

[0015] 11. Separating wheel, 12. First steering wheel, 13. Second steering wheel, 14. Third steering wheel, 15. Fourth steering wheel,

[0016] 21. First clamping wheel, 22. Second clamping wheel,

[0017] 3. Take-up reel

[0018] 4. Rotating shaft,

[0019] 5. Rotating shaft groove,

[0020] 6. Side plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] As used hereinafter, the curling during the processing refers to the bending of the sheet, positive and negative curling refer to the sheet bending in the positive and negative directions, the original bending direction of the sheet is positive curling, and the bending direction opposite to the positive curling direction is negative curling.

[0022] One side of the sheet is the protective film side, and the other side is the release film side.

[0023] Refer to Figure 1 , a sheet curling improvement device, including a first turning wheel 12, a third turning wheel 14, a first clamping wheel 21, a second clamping wheel 22, and a winding wheel 3. Among them, the first turning wheel 12 is arranged at the upper part on one side of the device, the third turning wheel 14 is arranged directly below the first turning wheel 12, and the axes of the third turning wheel 14 and the first turning wheel 12 are arranged on a straight line, facilitating the tensioning or relaxation of the sheet between the two turning wheels.

[0024] Refer to Figure 1 , the first clamping wheel 21 is arranged at a lower position on one side of the first turning wheel 12, and the second clamping wheel 22 is arranged below it. The horizontal position of the axis of the second clamping wheel 22 is higher than the horizontal position of the axis of the third turning wheel 14, enabling the sheet to be pressed upward.

[0025] Refer to Figure 1 , the winding wheel 3 is arranged on the opposite side of the position where the first turning wheel 12 is located, and the horizontal position of its axis is higher than the horizontal position of the axis of the first clamping wheel 21. After the sheet is wound on the winding wheel 3, the winding wheel 3 can wind the sheet in positive or negative directions by rotating forward or backward, and different winding methods can be selected according to different needs. After the sheet is taken out from the winding wheel 3, it is then put into the oven.

[0026] Refer to Figure 1 , further, the described sheet curling improvement device further includes a separating wheel 11 and a second turning wheel 13. Among them, the separating wheel 11 is arranged on one side of the horizontal position of the first turning wheel 12, and their axes are on a straight line. The second turning wheel 13 is arranged below the separating wheel 11 and the first turning wheel 12, and its axis is arranged in the middle of the two straight lines where the axes of the separating wheel 11 and the first turning wheel 12 are located, enabling the protective film to be turned and facilitating the clamping wheel to press the protective film.

[0027] Refer to Figure 1 , further, the described sheet curling improvement device further includes a fourth turning wheel 15. Among them, the separating wheel 11, the first turning wheel 12, the second turning wheel 13, and the third turning wheel 14 are arranged on one side of the first clamping wheel 21 and the second clamping wheel 22, and the fourth turning wheel 15 is arranged on the other side, and the fourth turning wheel 15 can adjust the bending degree of the sheet.

[0028] Refer to Figure 1, further, the sheet curling improvement device further includes a rotating shaft 4. A rotating shaft 4 passing through each wheel is provided at the centers of the separating wheel 11, the first steering wheel 12, the second steering wheel 13, the third steering wheel 14, the fourth steering wheel 15, the first clamping wheel 21, the second clamping wheel 22, and the winding wheel 3. The rotating shaft 4 drives each wheel to rotate.

[0029] Refer to Figure 1 , further, the sheet curling improvement device further includes side plates 6. The side plates 6 are arranged on both sides of the sheet curling improvement device. Both ends of the rotating shaft 4 are respectively arranged on one side plate 6. The side plates 6 are the device housings, providing protection and support for the whole device.

[0030] Refer to Figure 1 , further, the sheet curling improvement device further includes rotating shaft grooves 5. A plurality of rotating shaft grooves 5 are respectively arranged on the two side plates 6. The rotating shaft grooves 5 are strip-shaped. One end of the rotating shaft 4 can move inside the rotating shaft groove 5 where it is located. The rotating shafts 4 of the first steering wheel 12, the third steering wheel 14, the fourth steering wheel 15, and the second clamping wheel 22 are respectively arranged inside one rotating shaft groove 5. For the rotating shaft groove 5 where the rotating shaft 4 of the first steering wheel 12 is located, the horizontal position of the upper end of the rotating shaft groove 5 is higher than the horizontal position of the center of the separating wheel 11, and the horizontal position of the lower end is lower than the horizontal position of the center of the separating wheel 11. The horizontal position of the lower end of the rotating shaft groove 5 where the rotating shaft 4 of the second clamping wheel 22 is located is higher than the horizontal position of the upper end of the rotating shaft groove 5 where the rotating shaft 4 of the third steering wheel 14 is located. The horizontal position of the upper end of the rotating shaft groove 5 where the rotating shaft 4 of the fourth steering wheel 15 is located is higher than the horizontal position of the center of the first clamping wheel 21, and the horizontal position of the lower end is lower than the highest position of the rotating shaft groove 5 where the rotating shaft 4 of the second clamping wheel 22 is located. So that the first steering wheel 12 and the third steering wheel 14 can move upward or downward, and they move in opposite directions to achieve the purpose of tightening or loosening the sheet; the second clamping wheel 22 can move upward or downward. When it moves upward, it can cooperate with the first clamping wheel 21 to clamp the sheet, and vice versa to loosen the sheet; the fourth steering wheel 15 can move upward or downward, and its movement range is large, which can change the overall tightness of the sheet in the device to a large extent, and then change the bending degree of the sheet.

[0031] Further, after the sheet enters the oven, the temperature of the oven is set at 30°C to 40°C, the humidity is 50% to 60%, and the standing time is one to four days.

[0032] High temperature can effectively release the stress of the product. During the processing of the coil material, the flow direction bends towards the release surface, and the distance from the release surface in the direction perpendicular to the flow direction during processing decreases. The coiling in the flow direction during processing has been adjusted. It can effectively offset the negative change in the flow direction during processing caused by high temperature recovery. After the coil material is left standing for a period of time, affected by high temperature, the outer curl of the product changes towards the release surface, and the original outer curl can be reduced to within the customer's standard. Due to the uniform stress on the coil material, it becomes flat after bending. The uniformity of the curl value is also effectively guaranteed. There will be no breakage or film rupture during the recovery of the coil material. According to the curl value of the product put in and the requirement benchmark, the judgment is made and the putting-in time is confirmed. High temperature recovery is carried out in advance and then cutting production is carried out. The generation of curl abnormalities is greatly reduced.

[0033] Refer to Figure 1 , the sheet is separated from the separation wheel 11 into a polarizer (POL) and a protective film. The polarizer (POL) flows towards the first turning wheel 12, and the protective film flows towards the second turning wheel 13. Then, the two are clamped by the first clamping wheel 21 and the second clamping wheel 22 and combined into a sheet again.

[0034] Refer to Figure 1 , when the first turning wheel 12 shakes upward and the third turning wheel 14 shakes downward, the polarizer (POL) can be tightened. Thus, when the protective film is pasted on the polarizer (POL) by the first clamping wheel 21 and the second clamping wheel 22, the tightness of the protective film on the sheet is controlled by the tightness of the polarizer (POL), that is: when the protective film is tightened and coiled, the flow direction during processing is adjusted in the positive direction; when the protective film is relaxed and coiled, the flow direction during processing is adjusted in the negative direction;

[0035] Refer to Figure 1 , when the second clamping wheel 22 shakes upward, the flow direction of the coil during processing changes in the positive direction; when the second clamping wheel 22 shakes downward, the flow direction of the coil during processing changes in the negative direction;

[0036] Refer to Figure 1 , when the fourth turning wheel 15 shakes upward, the flow direction of the coil during processing changes in the positive direction; when the fourth turning wheel 15 shakes downward, the flow direction of the coil during processing changes in the negative direction;

[0037] Example 1: After the sheet enters the device, it first passes through the separation wheel 11. The separation wheel 11 separates the sheet into two parts, a polarizer and a protective film. The polarizer part first passes through the first turning wheel 12 and then through the third turning wheel 14. The first turning wheel 12 shakes upward, and the third turning wheel 14 shakes downward to tighten the sheet. After passing through the separation wheel 11, the protective film bypasses the second turning wheel 13 to change its direction, and then passes through between the first clamping wheel 21 and the second clamping wheel 22. The protective film that bypasses the third turning wheel 14 also passes through between the first clamping wheel 21 and the second clamping wheel 22 and is located at the lower end of the protective film. When the two pass through between the first clamping wheel 21 and the second clamping wheel 22, the second clamping wheel 22 moves upward and clamps appropriately according to different sheets to make the two merge into one again. The fourth turning wheel 15 shakes upward, and then is reverse-wound by the winding wheel 3, that is, the protective film faces outward and the release film is wound inward.

[0038]

[0039] The above is the required recovery time (outer curl is the degree of sheet bending) for sheets of each model in the oven (oven temperature is 40° and humidity is 55%).

Claims

1. A sheet curling improvement device, characterized in that: It comprises a first steering wheel (12), a third steering wheel (14), a first clamping wheel (21), a second clamping wheel (22), and a winding wheel (3), wherein The first steering wheel (12) is arranged at an upper portion of one side of the device, and the third steering wheel (14) is arranged directly below the first steering wheel (12). The axis of the third steering wheel (14) and the axis of the first steering wheel (12) are arranged on a straight line. The first clamping wheel (21) is arranged at a lower position on one side of the first steering wheel (12), and a second clamping wheel (22) is arranged below the first clamping wheel (21). The horizontal position of the axis of the second clamping wheel (22) is higher than the horizontal position of the axis of the third steering wheel (14). The winding wheel (3) is arranged on the opposite side to the position of the first steering wheel (12), and the horizontal position of the axis of the winding wheel (3) is higher than the horizontal position of the axis of the first clamping wheel (21). After the sheet is rolled up by the winding wheel (3), it is taken out from the winding wheel (3) and then placed in the oven.

2. A sheet curling improvement device according to claim 1, characterized in that: It also includes a separation wheel (11) and a second steering wheel (13), wherein The separation wheel (11) is arranged on one side of the horizontal position of the first steering wheel (12), and the axes of the two wheels are in a straight line. The second steering wheel (13) is arranged below the separation wheel (11) and the first steering wheel (12), and its axis is arranged in the middle of two straight lines where the axis of the separation wheel (11) and the first steering wheel (12) are located.

3. A sheet curling improvement device according to claim 2, characterized in that: It also includes a fourth steering wheel (15), wherein A separation wheel (11), a first steering wheel (12), a second steering wheel (13), and a third steering wheel (14) are arranged on one side of the first clamping wheel (21) and the second clamping wheel (22), and a fourth steering wheel (15) is arranged on the other side.

4. A sheet material curling improvement device according to claim 1, 2 or 3, characterized in that: It also includes a rotating shaft (4), wherein The axes of the separation wheel (11), the first steering wheel (12), the second steering wheel (13), the third steering wheel (14), the fourth steering wheel (15), the first clamping wheel (21), the second clamping wheel (22), and the winding wheel (3) are all provided with a rotating shaft (4) that runs through each wheel.

5. The sheet curling improvement device according to claim 4, characterized in that: It also includes a side plate (6), wherein Side plates (6) are arranged on both sides of a sheet material curling improvement device, and both ends of the rotating shaft (4) are respectively arranged on a side plate (6).

6. The sheet curling improvement device according to claim 5, characterized in that: It also includes a rotating shaft groove (5), wherein A plurality of rotating shaft grooves (5) are respectively provided on the two side plates (6), and the rotating shaft grooves (5) are in the shape of long strips. One end of the rotating shaft (4) can move inside the rotating shaft groove (5) where it is located. The rotating shafts (4) of the first steering wheel (12), the third steering wheel (14), the fourth steering wheel (15), and the second clamping wheel (22) are respectively arranged inside a rotating shaft groove (5). The rotating shaft groove (5) where the rotating shaft (4) of the first steering wheel (12) is located has an upper end at a horizontal position higher than a horizontal position of the axis of the separation wheel (11), and a lower end at a horizontal position lower than a horizontal position of the axis of the separation wheel (11). The horizontal position of the lower end of the rotating shaft groove (5) where the rotating shaft (4) of the second clamping wheel (22) is located is higher than the horizontal position of the upper end of the rotating shaft groove (5) where the rotating shaft (4) of the third steering wheel (14) is located. The horizontal position of the upper end of the rotating shaft groove (5) where the rotating shaft (4) of the fourth steering wheel (15) is located is higher than the horizontal position of the axis of the first clamping wheel (21), and the horizontal position of the lower end is lower than the highest position of the rotating shaft groove (5) where the rotating shaft (4) of the second clamping wheel (22) is located.

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