A glue coating composite process with microstructured film
Through a microstructured film drop coating composite process, one-time molding of drop glue, press-bonding curing, coating, re-bonding and re-bonding curing is achieved, solving the problems of low efficiency and poor yield in the prior art, and improving the forming efficiency and quality of the film material.
Patent Information
- Application Number
- CN202311858376.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2043-12-29
AI Technical Summary
The existing glue coating technology is low in efficiency and poor yield when making anti-peeping films or matte films, mainly due to the difficulty of precise control between different glue coating steps and the inaccuracy of film transport.
A drop coating composite process with a microstructure film is adopted to achieve one-time molding of the microstructure on the film by completing the drop coating, press-bonding curing, coating, re-bonding curing, re-bonding curing and composite treatments.
It improves the forming efficiency and yield of the film material, reduces the transportation time between equipment, ensures the accuracy of the glue drop position, and thus improves the overall production efficiency.
Smart Images

Figure CN117719171B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of drip glue coating, in particular to a drip glue coating composite process with a microstructured film. Background Art
[0002] The principle of commonly used electronic device protective films such as anti-peep films and frosted films is to make a layer of composite structure on the surface of the film material, and use the refraction of light or the uneven characteristics of the composite structure to achieve the anti-peep or frosted feel effect.
[0003] In the prior art, the production of this type of film requires multiple glue dripping processes, and different glue dripping steps need to be set up independently, resulting in low efficiency. It is also easy for different glue dripping devices to transport the film material in the same material roll transfer manner, making it difficult to accurately position the glue dripping, thereby reducing the yield rate of the film material.
[0004] Invention Technology
[0005] In order to solve the above technical problems, the present invention provides a glue-spraying composite process with a microstructured film, which can complete the molding of the microstructured composite film in one step.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0007] The present invention provides a composite process for coating a microstructured film by dripping glue, comprising:
[0008] A. The film material is released through the unwinding mechanism, and the film material is pulled and moved by the traction mechanism;
[0009] B. dripping glue on the film material through the first glue dripping mechanism so that the glue adheres to the surface of the film material;
[0010] C. Pressing the surface of the film material by the first roller module;
[0011] D. performing a light curing treatment on the adhesive on the surface of the film material to form a first structure;
[0012] E. Measure the thickness of the film material and record the total thickness of the film material and the first structure;
[0013] F. coating the side of the film material having the first structure, and adjusting the coating gap in real time according to the total thickness value during the coating process;
[0014] G. Carry out secondary glue dripping treatment on the coated film material;
[0015] H. performing a secondary lamination process on the film material so that the film material forms a second structure, and then performing a light curing process on the film material;
[0016] I. Compound treatment of the film material after light curing;
[0017] J. Roll up the film material after composite treatment.
[0018] Furthermore, the first roller module comprises a resisting roller and a pressing roller, a passage for the film material to pass through is provided between the resisting roller and the pressing roller, and embossing patterns are distributed on the surface of the pressing roller; step C specifically comprises:
[0019] C1. Obtain the tension of the film material and calculate the moving speed of the film material according to the tension of the film material;
[0020] C2. According to the transfer rate of the film material, the profiling rate is matched, and then the profiling roller is driven to rotate at a linear speed equal to the profiling rate;
[0021] C3. Monitor the tension change of the film material at all times. When the tension change ratio of the film material is greater than k, re-match the profiling rate;
[0022] Among them, the value of k is 1-1.1.
[0023] Furthermore, step C also includes:
[0024] Draw a curve of the tension of the film material and the transfer rate, and draw a curve of the movement rate of the film material and the pressing rate of the pressing roller;
[0025] According to the two variation curves, variation curves of the tension of the film material and the profiling speed of the profiling roller are obtained and stored.
[0026] Further, a coating mechanism is provided, the coating mechanism comprising a coating roller, a top roller, and a driving module for driving the top roller to move relative to the coating roller, and step F specifically comprises:
[0027] Obtain the total thickness h of the film material and the first structure, and then adjust the gap distance between the coating roller and the top roller to h', where h'=h+△h, △h is the pre-stored coating thickness;
[0028] According to the gap distance h', the horizontal angle θ is matched, where θ is the angle between the connecting line between the coating roller and the top roller and the horizontal line;
[0029] According to the values of h' and θ, the driving module drives the top roller to move relative to the coating roller;
[0030] The coating is transferred from the material tank to the coating roller by a multi-stage material transfer method, and then coated by the coating roller onto the film material that is in contact with the top roller.
[0031] Furthermore, the coating mechanism also includes a scraping module and a paint curing module. The scraping module is used to scrape off the uneven paint on the surface of the film material, and the paint curing module is used to cure the paint.
[0032] Furthermore, the driving module includes a lifting driving mechanism and a horizontal driving mechanism, and the number of multi-stage material transfer is three levels; according to the gap distance h', the horizontal angle θ is matched, specifically including:
[0033] Provide the value h 总 and h", where h" is the distance between the coating roller and the secondary transfer roller, h 总 is the sum of h' and h";
[0034] Match the value of h" according to h', where h" = k'*h', k' is a constant and the range of k' is 1.1-1.3;
[0035] According to h 总 =h"+h' to calculate h 总 , then according to h 总 Match the horizontal angle θ.
[0036] Further, step I specifically includes:
[0037] I1. Determine the relative angle and relative spacing between the film material and the composite film when compounding according to the thickness of the film material and the characteristics of the second structure;
[0038] I2. Adjust the positions of the first composite roller and the second composite roller according to the relative angle and relative spacing;
[0039] I3. driving the film material and the composite film through the gap between the first composite roller and the second composite roller for composite.
[0040] Further, in step I2, a pneumatic module and a manual adjustment module are provided, wherein the manual adjustment module is used to drive the first composite roller to rise and fall, and the pneumatic module is used to drive the second composite roller to move horizontally; step I2 specifically includes:
[0041] The relative height difference between the first composite roller and the second composite roller is calculated according to the relative angle between the film material and the composite film, and then the first composite roller is controlled to rise and fall relative to the second composite roller by the manual adjustment module;
[0042] According to the relative distance between the film material and the composite film, the second composite roller is controlled by the pneumatic module to approach or move away from the first composite roller along a horizontal straight line.
[0043] Further, a composite driving mechanism is provided for driving the first composite roller to rotate, the composite driving mechanism includes a servo motor and a reducer, and the servo motor and the reducer, and the reducer and the first composite roller are respectively driven by a belt structure; step I3 specifically includes:
[0044] The composite film is released through the composite unwinding module, and the composite film is pulled through the second tension module and then moved to the second composite roller; at the same time, the film material after the second structure is cured is pulled through the first tension module and then transferred to the first composite roller;
[0045] According to the tension values fed back by the first tension module and the second tension module, the rotation speed of the servo motor and the pressure applied to the second composite roller by the pneumatic module are adjusted respectively.
[0046] Further, step J specifically includes:
[0047] Sense the winding tension of the verified film material;
[0048] Adjust the winding speed according to the winding tension;
[0049] After completing the winding of a roll, the film material is stored through the compensation device, and the roll is changed after the film material is cut off;
[0050] The cut film material is pressed onto a new material reel and reeled up, and the film material stored in the compensation device is gradually released as the reeling progresses;
[0051] When the new material reel rotates n times, the device pressing the film material to the new material reel is released, wherein n is a natural number greater than 1.
[0052] Beneficial effects of the present invention: The present invention continuously completes one-time glue dripping, pressing and curing, coating, two-time glue dripping, pressing and curing, and compounding on the film material, so that the microstructure on the film material can be formed at one time, thereby improving efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0053] Figure 1 It is a process step diagram of the present invention.
[0054] Figure 2 It is a schematic structural diagram of the first roller module described in the present invention.
[0055] Figure 3 It is a schematic diagram of the coating mechanism described in the present invention.
[0056] Figure 4 It is a schematic diagram of the first composite roller and the second composite roller described in the present invention.
[0057] Figure numerals: 1—contact roller, 2—profile roller, 3—channel, 4—coating roller, 5—top roller, 6—drive module, 7—primary material transfer roller, 8—secondary material transfer roller, 9—lifting drive mechanism, 10—horizontal drive mechanism, 11—first composite roller, 12—second composite roller, 13—pneumatic module, 14—manual adjustment module, 15—servo motor, 16—reducer, 17—belt structure 18—second tension module, 19—paint tank. DETAILED DESCRIPTION
[0058] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.
[0059] like Figures 1 to 4 As shown, the present invention provides a composite process of dripping glue coating with a microstructured film, comprising:
[0060] A. The film material is released through the unwinding mechanism, and the film material is pulled and moved by the traction mechanism;
[0061] B. dripping glue on the film material through the first glue dripping mechanism so that the glue adheres to the surface of the film material;
[0062] C. Pressing the surface of the film material by the first roller module;
[0063] D. performing a light curing treatment on the adhesive on the surface of the film material to form a first structure;
[0064] E. Measure the thickness of the film material and record the total thickness of the film material and the first structure;
[0065] F. coating the side of the film material having the first structure, and adjusting the coating gap in real time according to the total thickness value during the coating process;
[0066] G. Carry out secondary glue dripping treatment on the coated film material;
[0067] H. performing a secondary lamination process on the film material so that the film material forms a second structure, and then performing a light curing process on the film material;
[0068] I. Compound treatment of the film material after light curing;
[0069] J. Roll up the film material after composite treatment.
[0070] Compared with the prior art, the present invention completes primary glue drop molding, coating, secondary glue drop molding, and compounding of the film material at one time before winding it up, so that the film material does not need to be wound up again during the process of making the microstructure (i.e., the first structure, coating, and the second structure), thereby reducing the time consumed in transportation between different equipment and ensuring the accuracy of the glue drop position between the molding of the primary structure and the secondary structure because the film material does not need to be wound up and unwound, thereby improving the yield rate.
[0071] In this embodiment, the first roller module comprises a resisting roller 1 and a pressing roller 2, a passage 3 for the film material to pass through is provided between the resisting roller 1 and the pressing roller 2, and embossing patterns are distributed on the surface of the pressing roller 2; step C specifically comprises:
[0072] C1. Obtain the tension of the film material and calculate the moving speed of the film material according to the tension of the film material;
[0073] C2. According to the transfer rate of the film material, the profiling rate is matched, and then the profiling roller 2 is driven to rotate at a linear speed equal to the profiling rate;
[0074] C3. Monitor the tension change of the film material at all times. When the tension change ratio of the film material is greater than k, re-match the pressing rate;
[0075] Among them, the value of k is 1-1.1.
[0076] That is, during the first solidification, the film material is passed through the gap between the abutting roller 1 and the embossing roller 2, and the shape of the rubber material on the film material is changed as expected by the embossing of the embossing roller 2, so as to achieve a molded structure. In this process, due to the influence of various factors, the film material will inevitably undergo tension changes during transmission, and when the tension changes, it will affect the transmission rate of the film material. Therefore, the present invention ensures that the embossing roller 2 does not rotate too fast and affect the embossing effect by matching the tension change of the film material with the embossing rate. At the same time, the embossing roller 2 slows down when the tension becomes smaller, which can also allow the pattern to be in contact with the rubber material for a longer time, so as to ensure reliable molding of the pattern.
[0077] Specifically, step C also includes:
[0078] Draw a curve of the tension of the film material and the transfer rate, and draw a curve of the movement rate of the film material and the pressing rate of the pressing roller 2;
[0079] According to the two variation curves, variation curves of the tension of the film material and the profiling rate of the profiling roller 2 are obtained and stored.
[0080] That is, the above two changing curves can be matched to obtain a function with the tension of the film material as the independent variable and the profiling rate of the profiling roller 2 as the dependent variable. The present invention only needs to make corresponding adjustments according to this function to ensure that the profiling rate matches the tension change to ensure the profiling effect.
[0081] Specifically, the secondary pressing process in step H is basically the same as that in step C, and will not be described in detail here.
[0082] In this embodiment, a coating mechanism is provided, the coating mechanism comprising a coating roller 4, a top roller 5 and a driving module 6 for driving the top roller 5 to move relative to the coating roller 4, and step F specifically comprises:
[0083] Obtain the total thickness h of the film material and the first structure, and then adjust the gap distance between the coating roller 4 and the top roller 5 to h', where h'=h+△h, △h is the pre-stored coating thickness;
[0084] According to the gap distance h', the horizontal angle θ is matched, where θ is the angle value between the connecting line between the coating roller 4 and the top roller 5 and the horizontal line;
[0085] According to the values of h' and θ, the driving module 6 drives the top roller 5 to move relative to the coating roller 4;
[0086] The coating material is transferred from the material tank to the coating roller 4 by a multi-stage material transfer method, and then coated by the coating roller 4 onto the film material abutted by the abutting roller 5 .
[0087] In actual use, since the film material will have a certain deviation in thickness after molding, the thickness of different positions of the film material will have a certain difference after one-time glue dripping and curing. Therefore, the present invention sets a thickness measuring step to measure the thickness of the film material. After the thickness measurement is completed, the corresponding gap distance h' is matched according to the total thickness of the film material at different positions, so as to match the corresponding horizontal angle θ, and then the relative height between the coating roller 4 and the top roller 5 is adjusted according to θ, so as to achieve the effect of adjusting the gap, ensuring that the coating thickness is basically the same based on the linear relationship between h' and h during each coating.
[0088] Specifically, the coating mechanism also includes a scraper module and a paint curing module. The scraper module is used to scrape off the uneven paint on the surface of the film material, and the paint curing module is used to cure the paint to ensure that the paint is evenly applied and fixed on the primary structure of the film material before the subsequent secondary glue dripping is carried out to avoid the primary glue dripping and the secondary glue dripping from blending with each other and affecting the effect of the overall coordination.
[0089] Specifically, the driving module 6 includes a lifting driving mechanism 9 and a horizontal driving mechanism 10, and the number of multi-stage material transfer is three; according to the gap distance h', the horizontal angle θ is matched, specifically including:
[0090] Provide the value h 总 and h", where h" is the distance between the coating roller 4 and the secondary transfer roller 8, h 总 is the sum of h' and h";
[0091] Match the value of h" according to h', where h" = k'*h', k' is a constant and the range of k' is 1.1-1.3;
[0092] According to h 总 =h"+h' to calculate h 总 , then according to h 总 Match the horizontal angle θ.
[0093] In actual use, the lifting drive mechanism 9 is a conventional linear module such as an air cylinder or an oil cylinder, and the horizontal drive mechanism 10 is a hand crank. That is to say, when the present invention is used, the horizontal distance between the coating roller 4 and the top roller 5 is first determined by the hand crank, and when h' needs to be adjusted later, since the application field of the present invention has high precision requirements, the change of h' is very small, and h' can be adjusted by controlling the lifting drive mechanism 9 to lift the coating roller 4 relative to the top roller 5. Since the present invention adopts a three-level transfer method, that is, the first-level transfer roller 7 is stained with paint and then transferred to the second-level transfer roller 8, and then the second-level transfer roller 8 transfers the paint to the coating roller 4, the uniformity of the paint is ensured; and the distance between the second-level transfer roller 8 and the coating roller 4 also determines the thickness of the paint transferred to the coating roller 4. Therefore, when adjusting the distance between the coating roller 4 and the top roller 5, the present invention also needs to consider the thickness change between the earphone transfer roller and the coating roller 4 caused by the coating roller 4 being raised. Both of them need to be considered to ensure that after adjustment, the paint transferred by the second-level transfer roller 8 can ensure that the thickness applied by the coating roller 4 to the film material is sufficient.
[0094] The above calculation method can be obtained after multiple experiments and then stored. When executing the present invention, the corresponding data can be directly retrieved for use. The execution and retrieval methods are conventional means and will not be repeated here.
[0095] In this embodiment, step I specifically includes:
[0096] I1. Determine the relative angle and relative spacing between the film material and the composite film when compounding according to the thickness of the film material and the characteristics of the second structure;
[0097] I2. Adjust the position of the first composite roller 11 and the second composite roller 12 according to the relative angle and relative spacing;
[0098] I3. Drive the film material and the composite film through the gap between the first composite roller 11 and the second composite roller 12 for composite.
[0099] In actual use, a pneumatic module 13 and a manual adjustment module 14 are provided, wherein the manual adjustment module 14 is used to drive the first composite roller 11 to rise and fall, and the pneumatic module 13 is used to drive the second composite roller 12 to move horizontally; step I2 specifically includes:
[0100] The relative height difference between the first composite roller 11 and the second composite roller 12 is calculated according to the relative angle between the film material and the composite film, and then the first composite roller 11 is controlled to rise and fall relative to the second composite roller 12 by the manual adjustment module 14;
[0101] According to the relative distance between the film material and the composite film, the second composite roller 12 is controlled by the pneumatic module 13 to approach or move away from the first composite roller 11 along a horizontal straight line.
[0102] That is, in step I, the height of the first composite roller 11 needs to be determined before executing the present invention, which is achieved by the manual adjustment module 14. The manual adjustment module 14 specifically uses a screw structure to adjust the height of the first composite roller 11 to ensure accuracy; and the pneumatic module 13 controls the second composite roller 12 to move back and forth along a horizontal straight line to adjust the gap between the first composite roller 11 and the second composite roller 12, thereby achieving a flexible adjustment effect.
[0103] Specifically, a composite driving mechanism is provided for driving the first composite roller 11 to rotate, the composite driving mechanism includes a servo motor 15 and a reducer 16, and the servo motor 15 and the reducer 16, and the reducer 16 and the first composite roller 11 are respectively driven by a belt structure 17; step I3 specifically includes:
[0104] The composite film is unwound through the composite unwinding module, and after being pulled, the composite film passes through the second tension module 18 and moves to the second composite roller 12; at the same time, the film material after the second structure is cured is pulled through the first tension module and then transferred to the first composite roller 11;
[0105] According to the tension values fed back by the first tension module and the second tension module 18 , the rotation speed of the servo motor 15 and the pressure applied to the second composite roller 12 by the pneumatic module 13 are adjusted respectively.
[0106] That is, the servo motor 15 has the effect of quickly responding to changes in rotation speed. When the tension changes, the rotation speed of the servo motor 15 can be immediately adjusted according to the pre-stored data to achieve the effect of adjusting the film material transmission rate. In addition, in order to ensure the composite effect, after the film material transmission rate is adjusted, the force applied by the pneumatic module 13 to the second composite roller 12 can be controlled to change. For example, when the tension becomes smaller, the pneumatic module 13 increases the force applied to the second composite roller 12. The increased force ensures the bonding effect between the film material and the composite film, thereby ensuring that no matter how the tension changes, the present invention can be adaptively adjusted to avoid affecting the composite effect.
[0107] In this embodiment, step J specifically includes:
[0108] Sense the winding tension of the verified film material;
[0109] Adjust the winding speed according to the winding tension;
[0110] After completing the winding of a roll, the film material is stored through the compensation device, and the roll is changed after the film material is cut off;
[0111] The cut film material is pressed onto a new material reel and reeled up, and the film material stored in the compensation device is gradually released as the reeling progresses;
[0112] When the new material reel rotates n times, the device pressing the film material to the new material reel is released, wherein n is a natural number greater than 1.
[0113] That is, the composite film material is transferred to the winding device for winding. After the winding device winds up a roll, the cutter cuts the film material, and the compensation device winds up to match the released material, ensuring that the machine does not stop when changing rolls. After the roll is changed, the corresponding mechanism presses down the film material so that the film material contacts the new material reel, and the new material reel rotates. After rotating n circles, the film material can be loosened, and the film material can be stably wound on the new material reel without the need for adhesive tape. At the same time, during the winding process of the new material reel, the rotation rate of the new material reel is slightly greater than the film material transmission rate, so that the film material stored in the compensation device can be gradually released.
[0114] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.
Claims
1. A composite process for coating a microstructured film, characterized in that: include A. The film material is released through the unwinding mechanism, and the film material is pulled and moved by the traction mechanism; B. dripping glue on the film material through the first glue dripping mechanism so that the glue adheres to the surface of the film material; C. Pressing the surface of the film material by the first roller module; D. performing a light curing treatment on the adhesive on the surface of the film material to form a first structure; E. Measure the thickness of the film material and record the total thickness of the film material and the first structure; F. coating the side of the film material having the first structure, and adjusting the coating gap in real time according to the total thickness value during the coating process; G. Carry out secondary glue dripping treatment on the coated film material; H. performing a secondary lamination process on the film material so that the film material forms a second structure, and then performing a light curing process on the film material; I. Compound treatment of the film material after light curing; J. Roll up the film material after composite treatment; A coating mechanism is provided, wherein the coating mechanism includes a coating roller, a top roller, and a driving module for driving the top roller to move relative to the coating roller. Step F specifically includes: Obtain the total thickness h of the film material and the first structure, and then adjust the gap distance between the coating roller and the top roller to h', where h'=h+△h, △h is the pre-stored coating thickness; According to the gap distance h', the horizontal angle θ is matched, where θ is the angle between the connecting line between the coating roller and the top roller and the horizontal line; According to the values of h' and θ, the driving module drives the top roller to move relative to the coating roller; The coating is transferred from the material tank to the coating roller by a multi-stage material transfer method, and then coated by the coating roller onto the film material that is in contact with the top roller.
2. The glue-coating composite process with a microstructured film according to claim 1, characterized in that: The first roller module comprises a resisting roller and a pressing roller, a passage for the film material to pass through is provided between the resisting roller and the pressing roller, and embossing patterns are distributed on the surface of the pressing roller; step C specifically comprises: C1. Obtain the tension of the film material and calculate the moving speed of the film material according to the tension of the film material; C2. According to the transfer rate of the film material, the profiling rate is matched, and then the profiling roller is driven to rotate at a linear speed equal to the profiling rate; C3. Monitor the tension change of the film material at all times. When the tension change ratio of the film material is greater than k, re-match the pressing rate; Among them, the value of k is 1-1.
1.
3. The glue-coating composite process with a microstructured film according to claim 2, characterized in that: Step C also includes: Draw a curve of the tension of the film material and the transfer rate, and draw a curve of the movement rate of the film material and the pressing rate of the pressing roller; According to the two variation curves, variation curves of the tension of the film material and the profiling speed of the profiling roller are obtained and stored.
4. The glue-coating composite process with a microstructured film according to claim 1, characterized in that: The coating mechanism also includes a scraping module and a paint curing module. The scraping module is used to scrape off the uneven paint on the surface of the film material, and the paint curing module is used to cure the paint.
5. The glue-coating composite process with a microstructured film according to claim 1, characterized in that: The driving module includes a lifting driving mechanism and a horizontal driving mechanism, and the number of multi-stage material transfer is three levels; according to the gap distance h', the horizontal angle θ is matched, specifically including: Provide the value h total h", where h" is the distance between the coating roller and the secondary transfer roller, and h total is the sum of h' and h". Match the value of h" according to h', where h" = k'*h', k' is a constant and the range of k' is 1.1-1.3; According to htotal=h"+h', htotal is calculated, and then the horizontal angle θ is matched according to htotal.
6. The glue-coating composite process with a microstructured film according to claim 1, characterized in that: Step I specifically includes: I1. Determine the relative angle and relative spacing between the film material and the composite film when compounding according to the thickness of the film material and the characteristics of the second structure; I2. Adjust the positions of the first composite roller and the second composite roller according to the relative angle and relative spacing; I3. driving the film material and the composite film through the gap between the first composite roller and the second composite roller for composite.
7. The glue-coating composite process with a microstructured film according to claim 6, characterized in that: In step I2, a pneumatic module and a manual adjustment module are provided, wherein the manual adjustment module is used to drive the first composite roller to rise and fall, and the pneumatic module is used to drive the second composite roller to move horizontally; step I2 specifically includes: The relative height difference between the first composite roller and the second composite roller is calculated according to the relative angle between the film material and the composite film, and then the first composite roller is controlled to rise and fall relative to the second composite roller by the manual adjustment module; According to the relative distance between the film material and the composite film, the second composite roller is controlled by the pneumatic module to approach or move away from the first composite roller along a horizontal straight line.
8. The glue-coating composite process with a microstructured film according to claim 7, characterized in that: A composite driving mechanism is provided for driving the first composite roller to rotate, the composite driving mechanism includes a servo motor and a reducer, and the servo motor and the reducer, and the reducer and the first composite roller are respectively driven by a belt structure; step I3 specifically includes: The composite film is released through the composite unwinding module, and the composite film is pulled through the second tension module and then moved to the second composite roller; at the same time, the film material after the second structure is cured is pulled through the first tension module and then transferred to the first composite roller; According to the tension values fed back by the first tension module and the second tension module, the rotation speed of the servo motor and the pressure applied to the second composite roller by the pneumatic module are adjusted respectively.
9. The glue-coating composite process with a microstructured film according to claim 1, characterized in that: Step J specifically includes: Sense the winding tension of the verified film material; Adjust the winding speed according to the winding tension; After completing the winding of a roll, the film material is stored through the compensation device, and the roll is changed after the film material is cut off; The cut film material is pressed onto a new material reel and reeled up, and the film material stored in the compensation device is gradually released as the reeling progresses; When the new material reel rotates n times, the device pressing the film material to the new material reel is released, wherein n is a natural number greater than 1.
Citation Information
Patent Citations
Preparation method of peep-proof film
CN113172819A