Polarizer punching device

Abstract

The embodiment of the utility model belongs to the technical field of polaroid punching. The utility model further relates to a polaroid punching device which comprises a reverse winding shaft and a flattening shaft arranged above the reverse winding shaft, a gap for the polaroid to penetrate through is formed between the flattening shaft and the reverse winding shaft, and the winding direction of the roll-shaped polaroid on the reverse winding shaft is opposite to the original winding direction. And the stress borne by the coiled incoming material of the polaroid is neutralized. By introducing the structural design of the reverse winding shaft and the flattening shaft, the warping problem of the polaroid can be remarkably reduced, specifically, the winding direction of the polaroid on the reverse winding shaft of the reverse winding roller is opposite to the original winding direction, and therefore stress borne by rolled incoming materials is effectively neutralized; meanwhile, the flattening shaft is used for rolling the polaroid passing through the reverse winding shaft, so that the warping condition of the polaroid is further improved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polarizer punching, and more specifically, to a polarizer punching device. Background Art

[0002] The polarizer is fully called a polarized light sheet, which is a thin sheet composed of multiple layers of materials. It usually consists of a polyvinyl alcohol (PVA) film, a triacetyl cellulose (TAC) film, a protective film, a release film, a pressure-sensitive adhesive, etc. Among them, the PVA film is the core part of the polarizer and has the function of generating polarized light, while the TAC film mainly plays a role in supporting and protecting the PVA film; the working principle of the polarizer is based on the polarization characteristics of light. Natural light contains light waves vibrating in various directions, and the polarizer can allow light waves in a specific direction in natural light to pass through and block light waves in other directions, thereby generating polarized light. This characteristic makes the polarizer widely used in many fields; in the optoelectronic display field, as a key material, the polarizer is widely used in the manufacturing of liquid crystal display screens. It is responsible for controlling the transmission direction of light, thereby ensuring that the display screen can present clear and accurate images. However, in the production and processing process of polarizers, a common problem is the warping phenomenon of polarizers; in order to facilitate transportation and storage, polarizer suppliers usually ship in large rolls. Although this rolling method saves space and improves transportation efficiency, it also brings challenges to the subsequent processing process;

[0003] After the coiling and winding, due to the stress of the polarizer being bent towards the core for a long time, certain deformation and stress accumulation will occur inside it. This stress is particularly obvious when the polarizer is cut into small piece products, often causing the polarizer to arch in one direction and resulting in warping; the warped polarizer will encounter many difficulties in the subsequent chip mounting process, such as being unable to fit tightly with the substrate, generating bubbles or voids, etc. These problems will seriously affect the display effect and production efficiency of the display screen. Therefore, we make improvements and propose a polarizer punching device. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is the problem of warping when the rolled polarizer is cut into small piece products.

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

[0006] A polarizer punching device, comprising:

[0007] A reverse winding shaft and a flattening shaft arranged above the reverse winding shaft. A gap for the polarizer to pass through is provided between the flattening shaft and the reverse winding shaft. The winding direction of the roll-shaped polarizer on the reverse winding shaft is opposite to its original winding direction to neutralize the stress received by the coiled polarizer material. Through the structural design of introducing the reverse winding shaft and the flattening shaft, this setting can significantly reduce the warping problem of the polarizer. Specifically, the winding direction of the polarizer on the reverse winding roll is opposite to its original winding direction, thereby effectively neutralizing the stress received by the coiled incoming material. At the same time, the flattening shaft rolls the polarizer passing through the reverse winding shaft, further improving the warping situation of the polarizer and improving production efficiency and product quality.

[0008] As an improvement of the present utility model, the reverse winding shaft is connected to a support frame, and a driving member is arranged on the support frame, and the driving member is used to drive the reverse winding shaft to rotate.

[0009] As an improvement of the present utility model, the driving member includes a motor installed on the support frame. The output shaft of the motor is connected to a transmission shaft, and the reverse winding shaft is fixedly sleeved on the outer surface of the transmission shaft.

[0010] As an improvement of the present utility model, the flattening shaft is connected to a cylinder, and a first support plate is connected between the cylinder and the support frame.

[0011] As an improvement of the present utility model, the flattening shaft is used to roll the polarizer passing through the reverse winding shaft.

[0012] As an improvement of the present utility model, the cylinder is used to adjust the pressure of the flattening shaft.

[0013] As an improvement of the present utility model, an input transmission roller is further connected to the support frame, and the input transmission roller is used for the support of the coiled polarizer.

[0014] As an improvement of the present utility model, a support platform is installed on one side of the support frame, and a punching device is arranged above the support platform.

[0015] As an improvement of the present utility model, the punching device and the support platform cooperate for punching the polarizer.

[0016] As an improvement of the present utility model, a second support plate is arranged between the punching device and the support frame.

[0017] Compared with the prior art, the embodiments of the present utility model mainly have the following beneficial effects:

[0018] To solve the problem of warping that occurs when the rolled polarizer is cut into small finished products in the prior art, the present application introduces the structural design of an anti-rolling shaft and a flattening shaft. This setting can significantly reduce the warping problem of the polarizer. Specifically, the winding direction of the polarizer on the anti-rolling roller and the anti-rolling shaft is opposite to the original winding direction, thus effectively neutralizing the stress received by the incoming rolled material. At the same time, the flattening shaft rolls and presses the polarizer passing through the anti-rolling shaft, further improving the warping situation of the polarizer, and improving the production efficiency and product quality. Since the warping problem is effectively reduced, the defective rate and the number of reworks caused by warping are reduced, and the production process becomes smoother and more efficient. At the same time, the high-quality polarizer also provides a better basis for the subsequent processing links, further accelerating the overall production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of the polarizer punching device provided by the present application;

[0020] Figure 2 FIG. is a schematic structural diagram of the anti-rolling shaft and the first support plate of the polarizer punching device provided by the present application;

[0021] Figure 3 FIG. is a diagram showing the running direction of the polarizer of the polarizer punching device provided by the present application.

[0022] Reference numerals in the figures:

[0023] 1, support frame;

[0024] 2, input drive roller;

[0025] 3, anti-rolling shaft; 301, drive shaft;

[0026] 4, first support plate; 401, cylinder; 402, flattening shaft;

[0027] 5, support platform; 501, second support plate; 502, punching equipment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The mention of "embodiment" in this document means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this utility model. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] As described in the background art, in order to facilitate transportation and storage, polarizer suppliers usually ship in large roll packages. Although this roll packaging method saves space and improves transportation efficiency, it also poses challenges to subsequent processing. After the roll is received, due to the long-term stress of the polarizer being bent towards the roll core, certain deformation and stress accumulation will occur inside it. This stress is particularly obvious when the polarizer is cut into small finished pieces, often causing the polarizer to arch in one direction and exhibit warping. Warped polarizers will encounter many difficulties in subsequent chip bonding processes, such as being unable to closely adhere to the substrate, generating bubbles or voids, etc. These problems will seriously affect the display effect and production efficiency of the display screen.

[0030] To solve this technical problem, the present utility model provides a polarizer punching device, which is applied to the punching of roll-shaped polarizers.

[0031] Specifically, please refer to Figures 1 - 3 , the polarizer punching device specifically includes:

[0032] An anti-reel 3 and a flattening shaft 402 arranged above the anti-reel 3. A gap for the polarizer to pass through is provided between the flattening shaft 402 and the anti-reel 3. The winding direction of the roll-shaped polarizer on the anti-reel 3 is opposite to its original winding direction to neutralize the stress received by the incoming roll of polarizer.

[0033] The polarizer punching device provided by the present utility model. Through the structural design of introducing the anti-reel 3 and the flattening shaft 402, this setting can significantly reduce the warping problem of the polarizer. Specifically, the winding direction of the polarizer on the anti-reel 3 is opposite to its original winding direction, thereby effectively neutralizing the stress received by the incoming roll. At the same time, the flattening shaft 402 rolls and presses the polarizer passing through the anti-reel 3, further improving the warping situation of the polarizer and improving production efficiency and product quality.

[0034] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] Embodiment 1 of the polarizer punching device of the present utility model

[0038] Please refer to Figures 1 - 3 , the polarizer punching device of the present utility model includes:

[0039] An anti-reel 3 and a flattening shaft 402 arranged above the anti-reel 3. A gap for the polarizer to pass through is provided between the flattening shaft 402 and the anti-reel 3. The winding direction of the roll-shaped polarizer on the anti-reel 3 is opposite to its original winding direction to neutralize the stress received by the rolled polarizer incoming material. Through the structural design of introducing the anti-reel 3 and the flattening shaft 402, this setting can significantly reduce the warping problem of the polarizer. Specifically, the winding direction of the polarizer on the anti-reel 3 of the anti-rolling roller is opposite to the original winding direction, thereby effectively neutralizing the stress received by the rolled incoming material. At the same time, the flattening shaft 402 rolls and presses the polarizer passing through the anti-reel 3, further improving the warping situation of the polarizer, and improving the production efficiency and product quality.

[0040] Furthermore, as Figure 1 shown, the anti-reel 3 is connected to a support frame 1. A driving member is arranged on the support frame 1. The driving member is used to drive the anti-reel 3 to rotate. The support frame 1 provides a stable support structure for the anti-reel 3 to ensure that the anti-reel 3 will not shake or shift during operation. The setting of the driving member ensures that the anti-reel 3 can rotate at a stable speed, making the anti-rolling process of the polarizer smoother and more efficient. This design improves the overall stability and reliability of the device and provides a guarantee for the high-quality processing of the polarizer.

[0041] Furthermore, as Figure 1 shown, the driving member includes a motor installed on the support frame 1. The output shaft of the motor is connected to a transmission shaft 301. The anti-reel 3 is fixedly sleeved on the outer surface of the transmission shaft 301. As a power source, the motor has a stable output power and rotation speed and can provide strong power support for the anti-reel 3. The connection method of the transmission shaft 301 makes the power transmission more efficient and stable, ensuring that the anti-reel 3 can rotate at an accurate speed. This design improves the operation accuracy and reliability of the device and provides a strong guarantee for the anti-rolling process of the polarizer. The motor has stable performance and adjustable rotation speed and can be adjusted according to different production requirements.

[0042] Embodiment II of the polarizer punching device of the present utility model

[0043] Furthermore, the polarizer punching device of the present utility model, as Figure 3As shown, the flattening shaft 402 is connected to a cylinder 401. A first support plate 4 is connected between the cylinder 401 and the support frame 1. The setting of the cylinder 401 provides an adjustable pressure for the flattening shaft 402, enabling the flattening shaft 402 to adjust the pressure according to polarizing films of different thicknesses and materials, improving the versatility and adaptability of the device. The first support plate 4 provides stable support for the cylinder 401, ensuring that the cylinder 401 will not shake or shift during operation, thereby ensuring the stability of the pressure of the flattening shaft 402. This design can meet the processing requirements of different polarizing films, improving production efficiency and product quality.

[0044] Further, as Figures 1 - 2 shown, the flattening shaft 402 is used to roll and press the polarizing film passing through the reverse winding shaft 3. The rolling and pressing action of the flattening shaft 402 can further improve the flatness of the polarizing film, eliminating the minute unevenness that may remain during the reverse winding process of the polarizing film. Through rolling and pressing, the surface of the polarizing film becomes smoother and the quality becomes more stable, providing better conditions for subsequent processing such as punching. At the same time, rolling and pressing can also enhance the strength and durability of the polarizing film, extending the service life of the product.

[0045] Further, as Figures 1 - 2 shown, the cylinder 401 is used to adjust the pressure of the flattening shaft 402. The adjustable pressure enables the device to adapt to different production requirements, improving the flexibility and adaptability of production. By adjusting the pressure of the cylinder 401, precise pressure control can be achieved according to the material, thickness and processing requirements of different polarizing films, ensuring that the polarizing film can achieve the best flatness and quality during the rolling and pressing process. At the same time, this adjustable pressure design can also reduce the damage of the polarizing film caused by excessive pressure, improving the safety of production.

[0046] Embodiment Three of the Polarizing Film Punching Device of the Present Utility Model

[0047] Further, as Figure 1 shown, an input driving roller 2 is also connected to the support frame 1. The input driving roller 2 is used for the support of the wound polarizing film. The input driving roller 2 provides stable support and transmission for the wound polarizing film, enabling the polarizing film to smoothly enter the punching process. The surface of the input driving roller 2 is smooth, which can reduce the friction between the polarizing film and the input driving roller 2, avoiding damage to the polarizing film during the input process.

[0048] Further, as Figure 1As shown in the figure, a support platform 5 is installed on one side of the support frame 1, and a punching device 502 is arranged above the support platform 5. The support platform 5 provides a stable working platform for the punching device 502, ensuring that the punching device 502 will not shake or shift during the working process. The setting of the punching device 502 can achieve precise punching of the polarizer, improving the processing precision and quality of the product. This design makes the punching process more efficient and stable, bringing higher economic benefits to the enterprise.

[0049] Further, as Figure 1 shown, the punching device 502 and the support platform 5 cooperate for punching the polarizer; the cooperation between the punching device 502 and the support platform 5 can achieve efficient and precise punching of the polarizer, improving the production efficiency and product quality; the design of the support platform 5 can ensure that the polarizer remains stable during the punching process, avoiding problems such as offset or deformation, thereby reducing the defective rate.

[0050] Further, as Figure 1 shown, a second support plate 501 is arranged between the punching device 502 and the support frame 1. The second support plate 501 provides stable support for the punching device 502, ensuring that the punching device 502 will not shake or shift during the working process. This design improves the stability and safety of the punching device 5, providing a strong guarantee for the punching process of the polarizer. At the same time, the second support plate 501 can also play a role in dispersing the pressure of the punching device 502.

[0051] During use, for ease of understanding, in this application, A is used to represent the rolled polarizer and is marked in the figure. The rolled polarizer is sleeved on the outer surface of the input drive roller 2, and then the polarizer is led out and passed through between the reverse winding shaft 3 and the flattening shaft 402, and then reaches the support platform 5 and the punching device 502. The reverse winding shaft 3 is driven by a motor, playing a role as the power for the reverse winding and rotation of the polarizer. The winding direction of the polarizer on the reverse winding shaft 3 is opposite to the original winding direction. This solution can neutralize the stress received by the incoming rolled material; the flattening shaft 402 rolls the polarizer passing through the reverse winding roller, thereby further improving the warping condition of the polarizer. The polarizer after reverse winding and flattening can be conveyed to the support platform 5, and the punching device 502 punches the polarizer, which can be punched into large or small finished products.

[0052] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the accompanying drawings, but they do not limit the scope of the patent of the present utility model. The present 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 disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structures made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, are equally within the scope of the patent protection of the present utility model.

Claims

1. A polarizer punching device, characterized in that, Comprising: An unwinding reel (3) and a flattening shaft (402) arranged above the unwinding reel (3), a gap for the polarizer to pass through is provided between the flattening shaft (402) and the unwinding reel (3), and the winding direction of the rolled polarizer on the unwinding reel (3) is opposite to its original winding direction.

2. The polarizer punching device according to claim 1, wherein The unwinding reel (3) is connected to a support frame (1), and a driving member is arranged on the support frame (1), and the driving member is used to drive the unwinding reel (3) to rotate.

3. The polarizer punching device according to claim 2, wherein, The driving member includes a motor installed on the support frame (1), the output shaft of the motor is connected to a transmission shaft (301), and the unwinding reel (3) is fixedly sleeved on the outer surface of the transmission shaft (301).

4. The polarizer punching device according to claim 1, wherein, The flattening shaft (402) is connected to a cylinder (401), and a first support plate (4) is connected between the cylinder (401) and the support frame (1).

5. The polarizer punching device according to claim 4, wherein The flattening shaft (402) is used for rolling the polarizer passing through the unwinding reel (3).

6. The polarizer punching device according to claim 4, characterized in that, The cylinder (401) is used to adjust the pressure of the flattening shaft (402).

7. The polarizer punching device according to claim 2, wherein An input driving roller (2) is further connected to the support frame (1), and the input driving roller (2) is used for supporting the rolled polarizer.

8. The polarizer punching device according to claim 2, wherein, A support platform (5) is installed on one side of the support frame (1), and a punching device (502) is arranged above the support platform (5).

9. The polarizer punching device according to claim 8, wherein The punching device (502) and the support platform (5) cooperate for punching the polarizer.

10. The polarizer punching device according to claim 8, characterized in that, A second support plate (501) is arranged between the punching device (502) and the support frame (1).

Images