OCA (optical clear adhesive) film cutting equipment

Abstract

The utility model discloses OCA (optical clear adhesive) film cutting equipment which comprises a film cutting mechanism and a laminating mechanism, the film cutting mechanism and the laminating mechanism respectively comprise an upper roller and a lower roller, two ends of the upper roller and two ends of the lower roller are respectively arranged in a guide mechanism in a penetrating manner, and a pressing mechanism is mounted at the top of the guide mechanism. A pressure sensor is arranged between the pressing mechanism and the upper roller, the film cutting mechanism comprises a first film cutting mechanism and a second film cutting mechanism, more than two circular cutter modules are symmetrically mounted on the upper roller of the first film cutting mechanism, and a transverse cutter die and a longitudinal cutter die are mounted on the upper roller of the second film cutting mechanism. According to the OCA optical cement film cutting equipment, a plurality of circular knife modules are arranged on the film cutting mechanism, simultaneous film cutting of a plurality of films is achieved, the guide mechanism is used for guiding upper rollers of the film cutting mechanism and the attaching mechanism, the pressing mechanism is used for pressing the upper rollers downwards, and the pressure sensor is used for detecting pressure balance at the two ends. And the simultaneous film cutting precision of a plurality of films is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, and specifically to an OCA optical film cutting device. Background Art

[0002] The film cutting process of optical films generally adopts two methods: flat-type cutting die and rolling die. OCA optical adhesive has the characteristics of soft material and strong fluidity. It is a material that is difficult to process in the die-cutting industry. The material is special, the processing yield is low, and the processing efficiency is low. In the current conventional processing technology, flat-type cutting dies are prone to problems such as warping, and it is difficult to use in OCA optical adhesive products; rolling die needs to consider the characteristics of OCA optical adhesive materials to ensure the quality after die-cutting. It can only be cut one piece at a time, and the corresponding production efficiency rhythm is not easy to be too fast, which leads to the film cutting efficiency of OCA optical adhesive being too low. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an OCA optical adhesive film cutting device, in which a plurality of circular knife modules are arranged on the film cutting mechanism to realize simultaneous film cutting of multiple films, the upper rollers of the film cutting mechanism and the bonding mechanism are guided by the guiding mechanism, the upper rollers are pressed down by the pressing mechanism, and the pressure balance at both ends is detected by the pressure sensor to ensure the accuracy of simultaneous film cutting of multiple films.

[0004] In order to solve the above technical problems, the utility model provides an OCA optical film cutting device, including a film cutting mechanism and a laminating mechanism, wherein the film cutting mechanism and the laminating mechanism both include an upper roller and a lower roller, a carrier belt is arranged between the upper roller and the lower roller, the two ends of the upper roller and the lower roller are respectively inserted into a guide mechanism, a pressing mechanism is installed on the top of the guide mechanism, and a pressure sensor is arranged between the pressing mechanism and the upper roller;

[0005] The film cutting mechanism comprises a first film cutting mechanism and a second film cutting mechanism, wherein two or more circular knife die sets are symmetrically mounted on the upper roller of the first film cutting mechanism, and a transverse knife die and a longitudinal circular knife die are mounted on the upper roller of the second film cutting mechanism, wherein the number of the longitudinal circular knife die is one less than the number of the circular knife die sets;

[0006] The laminating mechanism comprises a first laminating mechanism, and the first laminating mechanism is arranged between the first film cutting mechanism and the second film cutting mechanism;

[0007] It also includes a first unloading mechanism, which is used to transport the light release film to be laminated to the carrier belt at the front end of the first laminating mechanism.

[0008] In the OCA optical adhesive film cutting device of the utility model, the carrier belt conveys the optical adhesive to be cut to the position of the first film cutting mechanism, and the upper roller and the lower roller of the first film cutting mechanism rotate one circle to realize film cutting once. The optical film after film cutting is laminated with the light release film conveyed by the first material discharging mechanism through the first laminating mechanism, and then conveyed to the second film cutting mechanism to realize the cutting of the laminated light release film, and complete the OCA optical adhesive film cutting and laminating process. Two or more groups of circular knife modules are arranged in the first film cutting mechanism, and the upper rollers of the film cutting mechanism and the laminating mechanism are guided by the guiding mechanism, and the upper roller is pressed down by the pressing mechanism, the upper and lower positions of the lower roller are fixed, and the upper roller is pressed on the lower roller, and the pressure at both ends of the quantitative roller is detected by the pressure sensor to ensure that the pressure at both ends is balanced, and the pressure difference at both ends is ≤5kg, so as to ensure the accuracy of film cutting of multiple films at the same time, and improve the film cutting efficiency under the condition of ensuring the accuracy of the product.

[0009] Furthermore, the first unloading mechanism includes a first unloading shaft, an automatic deviation corrector and a support shaft which are sequentially arranged along the output direction of the light release film to be laminated, and the position of the light release film to be laminated is corrected by the automatic deviation corrector to ensure the lamination accuracy.

[0010] Furthermore, it also includes a first material receiving shaft, which is arranged above the first film cutting mechanism and is used to collect the film trimmings.

[0011] Furthermore, the laminating mechanism also includes a second laminating mechanism, and the second laminating mechanism is arranged in front of the first film cutting mechanism.

[0012] Furthermore, it also includes a second material collection shaft, which is arranged above the second laminating mechanism and is used to collect the torn light release film.

[0013] Furthermore, it also includes a third bonding mechanism, which is arranged in front of the second bonding mechanism.

[0014] Furthermore, it also includes a second unloading shaft for conveying the OCA optical adhesive original film to the carrier belt in front of the third bonding mechanism.

[0015] Furthermore, the guide mechanism includes two guide columns and a horizontal plate fixed on the top of the guide columns, the upper roller and the lower roller are clamped between the two guide columns, the pressing mechanism is threadedly connected to the horizontal plate and the lower end passes through the horizontal plate to contact the pressure sensor, and the pressure between the upper roller and the lower roller is controlled by rotating the pressing mechanism.

[0016] Furthermore, the width of the original OCA optical adhesive film is equal to twice the width of the OCA optical adhesive product film, ensuring that the film cutting and lamination will not be misaligned, thereby improving the accuracy.

[0017] Furthermore, the upper roller and the lower roller of the laminating mechanism are both made of rubber, and the left, middle and right position accuracy of the rubber rollers is controlled below 10HZ, further improving the accuracy.

[0018] Beneficial effects of the utility model:

[0019] The utility model discloses an OCA optical adhesive film cutting device, wherein a plurality of circular knife modules are arranged on the film cutting mechanism, the upper rollers of the film cutting mechanism and the laminating mechanism are guided by the guiding mechanism, the upper rollers are pressed down by the pressing mechanism, and the pressure balance at both ends is detected by the pressure sensor, thereby improving the film cutting efficiency while ensuring the accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the OCA optical film cutting device of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection relationship between the upper roller, the lower roller and the guide mechanism of the utility model;

[0022] Figure 3 This is a layer diagram of the OCA optical film of the utility model before cutting;

[0023] Figure 4 It is a layer diagram of the OCA optical adhesive film of the utility model after cutting and lamination;

[0024] Explanation of numbers in the figure: 1. Carrying belt, 2. Pressing mechanism, 3. Pressure sensor, 4. First film cutting mechanism, 5. Second film cutting mechanism, 6. First laminating mechanism, 7. First unloading shaft, 8. Automatic deviation corrector, 9. Support shaft, 10. First receiving shaft, 11. Second laminating mechanism, 12. Second receiving shaft, 13. Third laminating mechanism, 14. Second unloading shaft, 15. Guide column, 16. Horizontal plate, 17 Optical adhesive layer, 18. Heavy release film layer, 19. Light release film layer, 100. Upper roller, 200. Lower roller. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1 As shown, the utility model provides an OCA optical film cutting device, including a film cutting mechanism and a bonding mechanism, wherein the film cutting mechanism and the bonding mechanism both include an upper roller 100 and a lower roller 200, as shown in FIG. Figure 2As shown, a material carrying belt 1 is arranged between the upper roller 100 and the lower roller 200, and the two ends of the upper roller 100 and the lower roller 200 are respectively inserted into the guide mechanism, and a downward pressing mechanism 2 is installed on the top of the guide mechanism, and a pressure sensor 3 is arranged between the downward pressing mechanism 2 and the upper roller 100. The upper and lower positions of the lower roller 200 remain unchanged, and the downward pressing mechanism 2 presses down, and the upper roller 100 is pressed tightly on the lower roller 200. At the same time, the pressure sensor 3 displays the pressure value, which is used to quantify the pressure between the upper roller 100 and the lower roller 200. The pressure values ​​at both ends of the upper and lower rollers are controlled to be balanced, thereby improving the film cutting and laminating accuracy; the film cutting mechanism includes a first film cutting mechanism 4 and a second film cutting mechanism 5, and the first More than two circular knife modules are symmetrically installed on the upper roller 100 of the film cutting mechanism 4, which are used to cut the optical adhesive to be cut into sheets. The upper roller 100 of the second film cutting mechanism 5 is installed with a horizontal knife module and a longitudinal circular knife module, which are used to cut the laminated light release film, thereby realizing the separation of each piece of optical adhesive. The number of the longitudinal circular knife modules is one less than the number of the circular knife module groups; it also includes a first unloading mechanism, which is used to convey the light release film to be laminated to the carrier belt 1 at the front end of the first bonding mechanism; the bonding mechanism includes a first bonding mechanism 6, which is arranged between the first film cutting mechanism 4 and the second film cutting mechanism 5, and is used to bond the laminated light release film to the optical adhesive.

[0027] The working principle of the OCA optical adhesive film cutting equipment of this embodiment is as follows: the carrier belt 1 transports the optical adhesive to be cut to the position of the first film cutting mechanism 4, and the upper roller 100 and the lower roller 200 of the first film cutting mechanism 4 rotate one circle to achieve one film cutting. The optical film after film cutting is laminated with the light release film transported by the first unloading mechanism through the first laminating mechanism 6, and then transmitted to the second film cutting mechanism 5 to achieve cutting of the laminated light release film, completing the OCA optical adhesive film cutting and laminating process to obtain the OCA optical adhesive finished film. More than two groups of circular knife modules are arranged in the first film cutting mechanism 4, and the upper roller 100 of the film cutting mechanism and the laminating mechanism is guided by the guiding mechanism, and the upper roller 100 is pressed down by the pressing mechanism 2, and the upper and lower positions of the lower roller 200 are fixed. The upper roller 100 is pressed on the lower roller 200, and the pressure at both ends of the roller is detected and quantified by the pressure sensor 3 to ensure that the pressure at both ends is balanced, and the pressure difference at both ends is ≤5kg, so as to ensure the accuracy of simultaneous film cutting of multiple films and improve the film cutting efficiency while ensuring the accuracy of the product.

[0028] Specifically, the first unloading mechanism includes a first unloading shaft 7, an automatic deviation corrector 8 and a support shaft 9 which are sequentially arranged along the output direction of the light release film to be laminated. The automatic deviation corrector 8 corrects the position of the light release film to be laminated to ensure the lamination accuracy.

[0029] Preferably, it also includes a first material receiving shaft 10, which is arranged above the first film cutting mechanism 4 and is used to collect the film trimmings.

[0030] Preferably, the laminating mechanism further comprises a second laminating mechanism 11, which is arranged in front of the first film cutting mechanism 4. It also comprises a second material collecting shaft 12, which is arranged above the second laminating mechanism 11 and is used to collect the torn light release film.

[0031] Preferably, it further comprises a third laminating mechanism 13 , which is arranged in front of the second laminating mechanism 11 , and also comprises a second unloading shaft 14 for conveying the OCA optical adhesive original film to the carrier belt 1 in front of the third laminating mechanism 13 .

[0032] Specifically, the guide mechanism includes two guide columns 15 and a horizontal plate 16 fixed on the top of the guide columns 15. The upper roller 100 and the lower roller 200 are clamped between the two guide columns 15. The pressing mechanism 2 is threadedly connected to the horizontal plate 16 and the lower end passes through the horizontal plate 16 to contact the pressure sensor 3. The pressure between the upper roller 100 and the lower roller 200 is adjusted by rotating the pressing mechanism 2, and the pressure at both ends of the roller is detected by the pressure sensor 3 to ensure that the pressure at both ends is balanced.

[0033] Specifically, the width of the original OCA optical adhesive film is equal to twice the width of the OCA optical adhesive product film, ensuring that the film cutting and laminating will not be misaligned, thereby improving the accuracy. Figure 3 and Figure 4 The film cutting equipment is used to cut the OCA optical adhesive layer 17 and the heavy release film layer, and the light release film is cut after the light release film is laminated. The upper roller 100 and the lower roller 200 of the laminating mechanism are both made of rubber, and the left, middle and right position accuracy of the rubber roller is controlled below 10Hz, further improving the accuracy.

[0034] In summary, the utility model OCA optical film cutting equipment is provided with a plurality of circular knife modules on the film cutting mechanism, the upper rollers of the film cutting mechanism and the bonding mechanism are guided by the guiding mechanism, the upper rollers are pressed down by the pressing mechanism, and the pressure balance at both ends is detected by the pressure sensor, so as to improve the film cutting efficiency while ensuring the accuracy of the product.

[0035] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. An OCA optical film cutting device, characterized in that: It includes a film cutting mechanism and a laminating mechanism, each of which includes an upper roller and a lower roller, a material carrying belt is arranged between the upper roller and the lower roller, two ends of the upper roller and the lower roller are respectively inserted into the guide mechanism, a pressing mechanism is installed on the top of the guide mechanism, and a pressure sensor is arranged between the pressing mechanism and the upper roller; The film cutting mechanism comprises a first film cutting mechanism and a second film cutting mechanism, wherein two or more circular knife die sets are symmetrically mounted on the upper roller of the first film cutting mechanism, and a transverse knife die and a longitudinal circular knife die are mounted on the upper roller of the second film cutting mechanism, wherein the number of the longitudinal circular knife die is one less than the number of the circular knife die sets; The laminating mechanism comprises a first laminating mechanism, and the first laminating mechanism is arranged between the first film cutting mechanism and the second film cutting mechanism; It also includes a first unloading mechanism, which is used to transport the light release film to be laminated to the carrier belt at the front end of the first laminating mechanism.

2. The OCA optical film cutting device according to claim 1, characterized in that: The first unloading mechanism comprises a first unloading shaft, an automatic deviation corrector and a supporting shaft which are sequentially arranged along the output direction of the light release film to be laminated.

3. The OCA optical film cutting device according to claim 1, characterized in that: It also includes a first material receiving shaft, which is arranged above the first film cutting mechanism and is used to collect the film trimmings.

4. The OCA optical film cutting device according to claim 1, characterized in that: The laminating mechanism further comprises a second laminating mechanism, and the second laminating mechanism is arranged in front of the first film cutting mechanism.

5. The OCA optical film cutting device according to claim 4, characterized in that: It also includes a second material receiving shaft, which is arranged above the second laminating mechanism and is used for collecting the torn light release film.

6. The OCA optical film cutting device according to claim 4, characterized in that: It also includes a third bonding mechanism, which is arranged in front of the second bonding mechanism.

7. The OCA optical film cutting device according to claim 6, characterized in that: It also includes a second unloading shaft, which is used to transport the OCA optical adhesive original film to the carrier belt in front of the third bonding mechanism.

8. The OCA optical film cutting device according to claim 1, characterized in that: The guide mechanism includes two guide columns and a horizontal plate fixed on the top of the guide columns. The upper roller and the lower roller are clamped between the two guide columns. The pressing mechanism is threadedly connected to the horizontal plate and the lower end passes through the horizontal plate to contact the pressure sensor.

9. The OCA optical film cutting device according to claim 1, characterized in that: The width of the original OCA optical adhesive film is equal to twice the width of the OCA optical adhesive product film.

10. The OCA optical film cutting device according to claim 1, characterized in that: The upper roller and the lower roller of the laminating mechanism are both made of rubber.

Images