Polarizer shaping device

Abstract

The utility model discloses a polaroid shaping device which comprises a supporting frame, a conveying belt and a hot-pressing shaping assembly. The conveying belt is located on one side of the supporting frame. The hot-pressing shaping assembly comprises a lifting driving part and a hot-pressing plate, the lifting driving part is installed on the supporting frame and connected with the hot-pressing plate, the hot-pressing plate is located above the conveying belt, and the lifting driving part is used for driving the hot-pressing plate to do reciprocating lifting motion in the direction close to or away from the conveying belt; and the polaroid on the conveying belt is subjected to hot-pressing shaping operation through the hot-pressing plate. Thus, the hot pressing plate is driven by the lifting driving part to carry out hot-pressing shaping operation on the polaroid on the conveying belt, and hot-pressing shaping is adopted for the polaroid, so that the moisture content of a TAC layer in the polaroid can be reduced while shaping is carried out, shrinkage change of the polaroid can be further avoided after the polaroid is shaped, and the quality of the polaroid is improved. The shaping effect of the polaroid is improved, and then the problem that the shaped polaroid is still warped is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polarizer production and manufacturing, in particular to a polarizer shaping device. Background Art

[0002] The stacked structure of polarizers usually includes TAC (triacetate film) layer, PVA (polyvinyl alcohol film) layer, TAC layer and PSA (pressure sensitive adhesive) layer. PVA is made by stretching. After the polarizer is made, PVA will shrink back. The shrinkage of PVA drives the shrinkage of the entire polarizer, resulting in polarization bending and warping. Figure 1 As shown in the figure, the warped polarizer will affect the alignment of the product; in addition, the water absorption, heat shrinkage and thickness difference of the upper and lower TAC materials of the polarizer will also cause the polarizer body to warp, and the TAC material has a high moisture content and will shrink more relatively, making the polarizer warp more obvious. However, the overall structural shaping effect of the existing polarizer shaping device is poor, resulting in the problem of warping of the polarizer after shaping. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a polarizer shaping device with improved shaping effect, so as to reduce the problem of warping of the polarizer after shaping.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A polarizer shaping device comprises: a support frame, a conveyor belt and a hot pressing shaping component; the conveyor belt is located on one side of the support frame; the hot pressing shaping component comprises a lifting drive member and a hot pressing plate, the lifting drive member is installed on the support frame, and the lifting drive member is connected to the hot pressing plate, the hot pressing plate is located above the conveyor belt, and the lifting drive member is used to drive the hot pressing plate to perform reciprocating lifting and lowering motion in a direction close to or away from the conveyor belt, so that the hot pressing plate performs hot pressing shaping operations on the polarizer on the conveyor belt.

[0006] In one embodiment, the support frame includes a back plate and a support plate, the conveyor belt is located on one side of the back plate, one end of the support plate is installed on the conveyor belt, and the other end of the support plate extends away from the back plate, and the lifting drive member is installed on the support plate.

[0007] In one embodiment, the lifting drive member is a lifting cylinder.

[0008] In one embodiment, the conveyor belt is a belt conveyor.

[0009] In one embodiment, it further includes a supporting plate, one side of which is mounted on the back plate, the belt conveyor is provided with a supporting surface, and the other side of the supporting plate extends away from the back plate so that the supporting plate is located below the supporting surface.

[0010] In one embodiment, the heat pressing plate is in a rectangular structure, and the size of the heat pressing plate is larger than the size of the polarizer.

[0011] In one of the embodiments, it also includes a distance measurement detection component, which is arranged on the support frame. A detection area is arranged on the conveyor belt. The distance measurement detection component is located on the detection area. When the conveyor belt moves the polarizer to the detection area, the distance measurement detection component is used to measure the warping of the polarizer.

[0012] In one embodiment, the distance measurement detection component includes a laser rangefinder and a mounting plate, one end of the mounting plate is disposed on the support frame, the other end of the mounting plate extends away from the support frame, and the laser rangefinder is mounted on the mounting plate.

[0013] In one of the embodiments, an in-place sensor is provided on the detection area.

[0014] In one of the embodiments, a material unloading robot is further included. The material unloading robot is located on a side of the conveyor belt close to the detection area, and the material unloading robot is used to unload the polarizer on the conveyor belt.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The polarizer shaping device of the utility model is provided with a support frame, a conveyor belt and a hot pressing shaping component, so that the polarizer can be conveyed by the conveyor belt, and the polarizer is hot pressed and shaped by the hot pressing shaping component at the same time. Specifically, the hot pressing plate is driven by a lifting drive member to perform hot pressing and shaping operations on the polarizer on the conveyor belt. Since the polarizer is hot pressed, the moisture content of the TAC layer in the polarizer can be reduced while the polarizer is being shaped, so that the shrinkage change of the polarizer can be further avoided after the polarizer is shaped, so as to improve the warping of the polarizer, improve the shaping effect of the polarizer, and thus reduce the problem of warping of the polarizer after shaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 is a schematic diagram of the structure of a warped polarizer;

[0019] Figure 2 It is a structural schematic diagram of a polarizer shaping device in one embodiment of the utility model; DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0021] See also Figure 1 As shown, a polarizer shaping device 10 includes: a support frame 100, a conveyor belt 200 and a hot pressing shaping assembly 300; the conveyor belt 200 is located on one side of the support frame 100; the hot pressing shaping assembly 300 includes a lifting drive member 310 and a hot pressing plate 320, the lifting drive member 310 is installed on the support frame 100, and the lifting drive member 310 is connected to the hot pressing plate 320, the hot pressing plate 320 is located above the conveyor belt 200, and the lifting drive member 310 is used to drive the hot pressing plate 320 to perform a reciprocating lifting motion in a direction close to or away from the conveyor belt 200, so that the hot pressing plate 320 performs a hot pressing shaping operation on the polarizer on the conveyor belt 200.

[0022] It should be noted that before the polarizer is shaped, the polarizer is first moved to the conveyor belt 200 manually or by a loading robot, and the polarizer is moved to the bottom of the hot pressing shaping assembly 300 by the conveyor belt 200, and the hot pressing shaping assembly 300 performs a hot pressing shaping operation on the polarizer. Specifically, the hot pressing plate 320 is driven by the lifting drive 310 to move toward the direction of the polarizer, and the polarizer is flattened by the hot pressing plate 320 to improve the warping problem of the polarizer. At the same time, due to the While the polarizer is being shaped, the heat on the hot press plate will be transferred to the polarizer, so that the water in the TAC can be evaporated to further reduce the water content of the TAC in the polarizer. In this way, the shaped polarizer can avoid further shrinkage changes, and further improve the warping of the polarizer, so that it can be restored to a flat state and enter the patch station. In this way, not only the shaping effect of the polarizer can be improved, but also the problem of warping of the polarizer after shaping can be reduced. Preferably, the lifting drive 310 is a lifting cylinder, and the hot press plate 320 is driven by the lifting cylinder to achieve the hot pressing shaping effect on the polarizer. Furthermore, the hot press plate 320 is a hollow structure, and a heater is arranged inside the hot press plate 320. The heater is a prior art and will not be described here. The hot press plate 320 is heated by the heater.

[0023] Further, the support frame 100 includes a back plate 110 and a support plate 120, the conveyor belt 200 is located on one side of the back plate 110, one end of the support plate 120 is mounted on the conveyor belt 200, the other end of the support plate 120 extends in a direction away from the back plate 110, and the lifting drive member 310 is mounted on the support plate 120. The back plate 110 is used to support the hot pressing shaping assembly 300, and the support plate 120 enables the cylinder to extend in the direction of the conveyor belt 200.

[0024] Preferably, the conveyor belt 200 is a belt conveyor. The belt conveyor has the advantage of smooth conveying, so it can ensure the smooth conveying of the polarizer. In addition, in another embodiment, the polarizer can be placed on a loading jig, and the loading jig is transported by the belt conveyor, for example, the loading jig can be a loading plate.

[0025] In one embodiment, the polarizer shaping device 10 further includes a supporting plate 400, one side of the supporting plate 400 is mounted on the back plate 110, the belt conveyor is provided with a supporting surface, and the other side of the supporting plate 400 extends in a direction away from the back plate 110 so that the supporting plate 400 is located below the supporting surface.

[0026] It should be noted that the belt of the belt conveyor is divided into an upper belt and a lower belt, and the bearing surface is located on the upper belt. Since the bearing surface of the belt is relatively soft, in order to avoid the upper belt from being partially dented when the hot press plate 320 presses down to shape the polarizer and thus affect the shaping operation, a bearing plate 400 is arranged between the upper belt and the lower belt to increase the flatness. In this way, when the hot press plate 320 presses down to shape the polarizer, the polarizer is located between the hot press plate 320 and the bearing plate 400, thereby improving the flattening effect of the polarizer.

[0027] Further, preferably, the heat pressing plate 320 is in a rectangular structure, and the size of the heat pressing plate 320 is larger than the size of the polarizer, so that the heat pressing plate 320 completely covers the polarizer to ensure the heat pressing shaping effect on the polarizer.

[0028] In one embodiment, the polarizer shaping device 10 further includes a distance measuring detection component 500, which is disposed on the support frame 100. A detection area is disposed on the conveyor belt 200. The distance measuring detection component 500 is located on the detection area. When the conveyor belt 200 moves the polarizer to the detection area, the distance measuring detection component 500 is used to measure the warping of the polarizer.

[0029] It should be noted that after the polarizer is hot-pressed and shaped, the conveyor belt 200 continues to move the polarizer into the detection area, and the warpage of the polarizer is measured by the distance measurement detection component 500. Specifically, the distance measurement detection component 500 includes a laser rangefinder 510 and a mounting plate 520, one end of the mounting plate 520 is arranged on the support frame 100, and the other end of the mounting plate 520 extends in a direction away from the support frame 100, and the laser rangefinder 510 is installed on the mounting plate 520. At the same time, in this embodiment, an in-place sensor is arranged on the detection area, and the in-place sensor is used to identify whether a polarizer is placed on the detection area. When the polarizer is identified, a signal will be transmitted to the control terminal to control the laser rangefinder 510 to emit a laser to the surface of the polarizer, start measuring and recording data, if the measured data exceeds the specified range, that is, the polarizer is determined to be an NG product, and the signal sent by the equipment needs to be arranged for isolation in time to avoid affecting subsequent processing operations. For example, in this embodiment, the polarizer shaping device 10 further includes a material unloading manipulator, which is located on the side of the conveyor belt close to the detection area, and is used to unload the polarizer on the conveyor belt. The unloading manipulator unloads the NG polarizer products, thereby improving the automation of the overall equipment, reducing manual participation, and thus improving processing efficiency. For example, the in-place sensor can be a fiber optic photoreceptor, and the in-place sensor can be installed on the conveyor belt 200.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A polarizer shaping device, characterized in that: include: Support frame; A conveyor belt, wherein the conveyor belt is located on one side of the support frame; and A hot pressing and shaping component, wherein the hot pressing and shaping component includes a lifting drive component and a hot pressing plate, wherein the lifting drive component is installed on the support frame and connected to the hot pressing plate, wherein the hot pressing plate is located above the conveyor belt, and wherein the lifting drive component is used to drive the hot pressing plate to perform reciprocating lifting and lowering motion in a direction close to or away from the conveyor belt, so that the hot pressing plate performs hot pressing and shaping operations on the polarizer on the conveyor belt.

2. The polarizer shaping device according to claim 1, characterized in that: The support frame includes a back plate and a support plate, the conveyor belt is located on one side of the back plate, one end of the support plate is installed on the conveyor belt, the other end of the support plate extends away from the back plate, and the lifting drive component is installed on the support plate.

3. The polarizer shaping device according to claim 1, characterized in that: The lifting drive member is a lifting cylinder.

4. The polarizer shaping device according to claim 2, characterized in that: The conveyor belt is a belt conveyor.

5. The polarizer shaping device according to claim 4, characterized in that: It also includes a bearing plate, one side of which is mounted on the back plate, the belt conveyor is provided with a bearing surface, and the other side of the bearing plate extends away from the back plate so that the bearing plate is located below the bearing surface.

6. The polarizer shaping device according to claim 1, characterized in that: The heat pressing plate has a rectangular structure, and the size of the heat pressing plate is larger than that of the polarizer.

7. The polarizer shaping device according to any one of claims 1 to 6, characterized in that: It also includes a distance measurement detection component, which is arranged on the support frame. A detection area is arranged on the conveyor belt. The distance measurement detection component is located on the detection area. When the conveyor belt moves the polarizer to the detection area, the distance measurement detection component is used to measure the warping of the polarizer.

8. The polarizer shaping device according to claim 7, characterized in that: The distance measurement detection component includes a laser rangefinder and a mounting plate, one end of the mounting plate is arranged on the support frame, the other end of the mounting plate extends in a direction away from the support frame, and the laser rangefinder is mounted on the mounting plate.

9. The polarizer shaping device according to claim 8, characterized in that: The detection area is provided with an in-place sensor.

10. The polarizer shaping device according to claim 9, characterized in that: It also includes a material unloading robot, which is located on a side of the conveyor belt close to the detection area, and is used to unload the polarizer on the conveyor belt.

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