High-adhesion deep-grain lens transfer paperboard production equipment and production process thereof

Abstract

The invention relates to the technical field of laser holographic anti-counterfeiting, in particular to production equipment and a production process of high-adhesion deep-grain lens transfer card paper. The production equipment comprises a winding roller, wherein two brackets in mirror symmetry are arranged beside the winding roller; the guide roller is rotatably arranged between the two brackets in a horizontal state, and the guide roller is used for supporting and guiding the deep-grain lens UV mold pressing film to be conveyed; the deep-grain lens UV mold pressing film bypasses the guide roller in the winding direction and then is connected with the winding roller; wherein one support is provided with a rotatable cam, and the cam forms a regular effect on the UV molded film of the deep-grain lens through the structural characteristics of the cam in the rotating process so as to adjust the rolling state of the UV molded film of the deep-grain lens. Through the regular effect of the cam in the rotating process, the rolling state of the UV mold pressing film of the deep-grain lens can be adjusted in a targeted mode, the problems of wrinkles and the like possibly occurring in the rolling process are effectively solved, and the rolling quality of the high-adhesion deep-grain lens transfer paperboard in the UV mold pressing process is improved.

Description

Technical Field

[0001] This invention relates to the field of laser holographic anti-counterfeiting technology, specifically to a high-adhesion deep-textured lens transfer card production equipment and its production process. Background Technology

[0002] Laser holographic anti-counterfeiting technology, as a comprehensive anti-counterfeiting method integrating new plate-making processes, computer photolithography, precision electroforming, laser holographic molding, and fine chemicals, is widely used in the anti-counterfeiting field. Among them, laser holographic molding is the core link, and UV molding machines, because UV coatings have a solid content of 100% and a coating thickness that is 6-7 times that of solvent-based coatings, are particularly suitable for replicating holographic images with deep textures (such as cat's eye and microlenses), and have become key equipment for the production of deep texture lens transfer cards.

[0003] The master engraving of deep-textured holographic images employs maskless laser direct-write holographic imaging technology. Considering the versatility, cost, yield rate, and limitations of lithography technology, the size of deep-textured holographic images is generally within 20cm*20cm. Deep-textured holographic patterns are typically not used alone; they are usually applied using a UV-mounted holographic nickel plate method, where the deep-textured holographic image is mounted onto a background holographic nickel plate that is much larger than itself.

[0004] The process of UV splicing holographic nickel plate is as follows: First, a large plate with background pattern information and multiple small plates with unit pattern information (deep texture (such as cat's eye, microlens) holographic images) need to be made. Finally, the unit pattern information on the surface of all the small plates is transferred to the large plate with background pattern information to complete the splicing operation. Since the deep texture lens holographic image is obtained by coating the background information with UV-curable paint, then combining it with the deep texture lens holographic image, photocuring, and then peeling it off, the feature depth of the deep texture lens holographic image (e.g., 7um) is higher than that of the background holographic image (e.g., 2um). Similarly, in order to accurately compare the deep textured lens pattern with the background pattern information (including customer documents), it is necessary to set the front pull specified position (fitting) pin position line (two sets of multiple regularly set short lines, perpendicular to the right tracking line), the right pull specified position (fitting) pin position line (two sets of multiple regularly set short lines, parallel to the right tracking line) and the right tracking line (the tracking line is a 1-2mm holographic plain image, consistent with the film feeding direction, used as the tracking line of the photoelectric probe of the correction controller when positioning and trimming the finished film and finished paper) on the bite side (width direction) of the holographic positioning deep textured lens nickel plate. The right tracking line and the right pull gauge needle position line are also stitched together using the UV panelization method described above, with the holographic image information (plain surface) of the right tracking line and the right pull gauge needle position line being UV-stitched onto the background information. Therefore, the image feature thickness of the right tracking line and the right pull gauge needle position line is also higher than the feature thickness of the background information (the feature thickness of the front pull gauge needle position line is also higher than the feature thickness of the background information, but because the front pull gauge needle position line is parallel to the circumference of the membrane, this feature thickness difference is greatly weakened in the width direction).

[0005] After the holographic nickel plate is assembled, it is necessary to use an electroforming process to produce a holographic deep texture lens nickel plate (sub-plate). Since the image depth information of the master plate and the sub-plate is opposite, the background pattern information texture depth on the holographic deep texture lens nickel plate used for UV molding is deeper than the texture of the deep texture lens image. Similarly, the background pattern information texture is also deeper than the texture of the right pull gauge needle position line and the right tracking line. During UV molding, when the UV-curable coating is pressed with the holographic deep-textured lens nickel plate, the texture depth of the deep-textured lens (including the right pull gauge pin position line and the right tracking line) on the holographic nickel plate is lower than the texture depth of the background information. This results in an optical structure in the UV-curable coating where the texture depth of the deep-textured lens area, the right pull gauge pin position line, and the right tracking line is higher than the texture depth of the background information (e.g., the texture depth of the deep-textured lens area is 8µm (feature thickness), the background information is 2-3µm (feature thickness), and the right pull gauge pin position line and the right tracking line are 4-5µm (feature thickness). This structure is caused by the UV-curable coating being squeezed between the molding steel roller and the molding rubber roller before curing (in liquid state), as well as the thickness difference (including the reference thickness and feature thickness) after UV curing due to the difference in feature thickness of the deep-textured holographic nickel plate surface.

[0006] The right pull gauge pin position line and the right tracking line are parallel to the direction of the film roll. After the film roll is wound normally, the thickness of the right pull gauge pin position line and the right tracking line is higher than the thickness of the surrounding background pattern information. As the winding length increases, this thickness difference is amplified step by step. When the winding reaches a certain length, wrinkles will be generated during winding. The adjustment structure for the winding state of the UV molding machine in the existing equipment is often single-function. The existing winding equipment is difficult to specifically counteract the impact of this thickness difference. As a result, the winding length of each molding roll is usually less than 3000 meters (22uBOPET film), which seriously restricts the yield and production efficiency, and has become a prominent bottleneck for the stable quality and efficient production of deep textured lens transfer paper. Summary of the Invention

[0007] To address the aforementioned issues, a high-adhesion deep-textured lens transfer card production equipment and its production process are provided. This involves utilizing the regularity of the cam's rotation (the cam's regular rotation drives the support shaft to slide up and down, and the cam's up-and-down movement causes the guide roller connected to it to move up and down). Since the guide roller's fixed side is fixed to the bracket, the guide roller connected to the cam side will exhibit three states (analyzed below based on the tangent position of the roll material to the bottom of the guide roller). Figure 1 (Structure): One type is where the guide roller cam side is higher than the fixed side (the pressure applied to the roll material by the cam roller side is less than the pressure applied by the fixed roller side, so the roll material will move towards the fixed roller side); another type is where the guide roller cam roller side is balanced with the fixed side (the pressure on the roll material on the cam roller side and the fixed side is the same, so the roll material moves to the reference point); the last type is where the guide roller cam roller side is lower than the fixed side (the pressure applied to the roll material by the guide roller on the cam roller side is greater than the pressure applied by the fixed roller side, so the roll material will move towards the cam side). When the cam rotates one revolution, the guide roller will move left and right once according to the above pattern. Correspondingly, when the cam rotates periodically, the guide roller will move left and right periodically according to the above pattern. The winding state of the deep textured lens UV molding film can be adjusted in a targeted manner, effectively improving problems such as wrinkles and film surface deformation that may occur during the winding process, and improving the winding quality of high adhesion deep textured lens UV molding film.

[0008] To address the problems of existing technologies, this invention provides a high-adhesion deep-textured lens transfer card production device, including a take-up roller, with two mirror-symmetrical supports arranged beside the take-up roller; a guide roller is horizontally and rotatably arranged between the two supports, which supports and guides the deep-textured lens UV molding film for conveying; the deep-textured lens UV molding film passes around the guide roller along the winding direction and connects to the take-up roller; a rotatable cam is arranged on one of the supports, and the cam, during rotation, exerts a regular effect on the deep-textured lens UV molding film through its own structural characteristics to adjust the winding state of the deep-textured lens UV molding film.

[0009] Preferably, one of the brackets is provided with a fixed shaft, and the other bracket is provided with an arc-shaped slide rail centered on the fixed shaft. One end of the guide roller is rotatably connected to the fixed shaft, and the other end of the guide roller is slidably engaged with the arc-shaped slide rail. The cam can drive the end of the guide roller close to the arc-shaped slide rail by rotating.

[0010] Preferably, the cam has a conical structure and is mounted on the support, and the cam is movable along its own axis; a rotatable roller is provided at one end of the guide roller near the arc-shaped slide rail, and the roller cooperates with the conical surface of the cam.

[0011] Preferably, the outer periphery of the roller is provided with multiple rotatable balls, which are distributed at equal intervals around the axis of the roller.

[0012] Preferably, there are two rollers, and a support shaft is provided at one end of the guide roller near the arc-shaped slide rail. The two rollers are arranged in a mirror image at both ends of the support shaft. There are two cams, which can move in opposite directions to cooperate with the two rollers respectively.

[0013] Preferably, a support frame is provided on the bracket between the two cams, and a rotatable drive shaft is provided on the support frame. Both cams are sleeved on the drive shaft and can slide along the drive shaft. A first rotary drive motor for rotating the drive shaft is provided on the top of the support frame.

[0014] Preferably, the bracket is provided with a mounting bracket for supporting the rotation of the cam. The two mounting brackets are slidably mounted on the bracket. The bracket is provided with a lead screw that passes through the two mounting brackets. Both mounting brackets are threadedly engaged with the lead screw, and the two ends of the lead screw have threads with opposite directions of rotation.

[0015] Preferably, a distance sensor is provided between the two cams to monitor the distance between the two cams.

[0016] Preferably, a second rotary drive motor for driving the guide roller to rotate is provided at the end of the guide roller away from the arc-shaped slide rail.

[0017] A process for producing deep-textured lens transfer cardboard, applied to the aforementioned high-adhesion deep-textured lens transfer cardboard production equipment, includes the following steps: S1. Based on customer requirements and the printing files of deep textured lens transfer card, produce the corresponding film; S2. Based on the film from S1, select the deep textured lens nickel plate and the background holographic image, and produce the deep textured lens nickel plate using UV panelization and electroforming process (the nickel plate includes, but is not limited to, deep textured lens information, background information, front pull gauge pin position line, right side tracking line, right pull gauge pin position line, etc.). S3. BOPET film is coated with water-based polyurethane coating on the entire surface using a gravure coating machine, dried in an oven and then rolled up to obtain BOPET release film. S4. Roll up the holographic deep texture lens nickel plate containing background information obtained in S2 onto the molding roller of the UV molding machine. S5. The release layer of the BOPET release film obtained in S3 is coated with UV-curable coating on the entire surface of the coating device of the UV molding machine. After leveling in the UV molding machine oven, it reaches the UV molding device. S6. Under the pressure of the UV molding back pressure roller, the UV-curable coating on the BOPET release film is bonded to the holographic deep texture lens nickel plate on the UV molding roller to form the preset deep texture. At the same time, UV curing treatment is performed to fix the deep texture structure. S7. After the deep texture structure is set, it is conveyed along the winding direction to the guide roller. The cam on the support is activated, so that during its rotation, it exerts a regular effect on the deep texture lens UV molding film passing through the guide roller through its own structural characteristics. Through the alternating action of the cam's convex and flat parts, the pressure on both sides of the guide roller (assuming the left side is the fixed side and the right side is the cam side) changes regularly. (Initially, the pressure on the left and right sides of the guide roller is balanced, and the roll material is located at the center of the take-up roller (film edge reference point) when it enters the take-up roller. As the guide roller rotates, assuming the pressure on the cam side of the guide roller gradually increases, the effect of "pulling" the roll material is stronger, so the roll edge will slide towards the cam side (to the right, away from the film edge reference point). In this way, the roll edge will have a regularly offset area (to the right) on the take-up roller. This area can convert the thickness difference (reference thickness and feature thickness) between the right tracking line and the right pull gauge needle position line of the deep texture lens and the background information area from the cumulative profile height difference to the dispersed profile height difference.) As the cam rotates, when the cam reaches its highest point, the pressure on both sides of the guide roller changes regularly. As the cam rotates further, the pressure on the cam side begins to decrease, and correspondingly, the film roll moves to the left (closer to the film edge reference point). When the cam rotates to the point where the tension on the cam side and the fixed side are balanced, the pressure on both sides of the guide roller is balanced, and the film edge is just located at the film edge reference point. As the cam rotates further, the pressure on the cam side will be less than that on the fixed side. As the pressure on the cam side decreases, the film edge generates a sliding force to the left, causing the moving edge of the film to move away from the film surface reference point. In this way, the film edge will have a regularly offset area (to the left) on the take-up roller. This area can convert the thickness difference (its reference thickness and characteristic thickness) between the right tracking line and the right pull gauge needle position line of the deep texture lens and the background information coating from the cumulative line height difference to the dispersed surface height difference. The cam performs the above movements under the drive of the drive motor. The final result of the movements is to transfer the thickness difference (reference thickness and characteristic thickness) between the right tracking line, the right pull gauge needle position line and the background information coating from the cumulative thickness difference to the dispersed surface thickness difference, which greatly increases the film winding length and avoids film wrinkles and film surface deformation. S8. Before the film reaches the take-up roller, the UV-cured coating is corona treated by a corona device. After corona treatment, the film is wound up to obtain a high-adhesion deep textured lens BOPET transfer film. S9. The high-adhesion deep-textured lens BOPET transfer film obtained in S8 is aluminized, slit, laminated with paper, peeled off, and positioned and cut to obtain high-adhesion deep-textured lens transfer card.

[0018] The advantages of this invention compared to the prior art are: 1. This invention utilizes the cam's rotational regularity to specifically adjust the winding state of deep-textured lens UV molding film, effectively improving problems such as wrinkles and film surface deformation that may occur during winding, thus enhancing the winding quality of high-adhesion deep-textured lens transfer paper during UV molding. The overall structure is compact, and through the synergistic action of the guide roller and cam, it optimizes the winding state while ensuring stable delivery of the deep-textured lens UV molding film. It is suitable for the production needs of high-adhesion deep-textured lens transfer paper during UV molding, contributing to improved production process stability and final product quality. 2. This invention utilizes a conical cam in conjunction with a rotatable roller. The axial movement of the cam allows for convenient adjustment of the guide roller's fluctuation level. This eliminates the need to replace the cam, adapting to the winding adjustment requirements of different deep-textured lens UV molding films, thus improving the equipment's versatility and adjustment flexibility. The roller's rotational design reduces frictional loss between it and the cam, extending the component's lifespan. Furthermore, the stability of the cam's conical surface contact ensures the regularity of the guide roller's fluctuation, making the adjustment of the deep-textured lens UV molding film's winding state more precise. This further adapts to the high winding accuracy requirements of high-adhesion deep-textured lens transfer paper during UV molding. 3. This invention continuously monitors the distance between the two cams in real time using a distance sensor, providing a precise reference for cam position adjustment. This effectively avoids deviations in the fit between the cams and rollers caused by over- or under-adjustment, thereby preventing abnormal fluctuations of the guide rollers from affecting the winding state of the deep-textured lens UV molding film. Simultaneously, real-time feedback of distance information facilitates automated control of cam position adjustment, reducing manual operation errors, improving adjustment efficiency, and ensuring that the two cams always maintain a relative position adapted to the winding requirements of the deep-textured lens UV molding film. This further guarantees the stability and accuracy of the high-adhesion deep-textured lens transfer card during the UV molding process. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a high-adhesion deep-textured lens transfer card production equipment; Figure 2 This is a front view of a high-adhesion deep-textured lens transfer card production equipment; Figure 3 This is a three-dimensional structural diagram of the guide roller and two supports in a high-adhesion deep-textured lens transfer card production equipment; Figure 4 This is a front view of the guide roller and two supports in a high-adhesion deep-textured lens transfer card production equipment; Figure 5 This is a schematic diagram of the three-dimensional structure of the end of the guide roller, the cam, and the support in a high-adhesion deep-textured lens transfer card production equipment. Figure 1 ; Figure 6 yes Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the three-dimensional structure of the end of the guide roller, the cam, and the support in a high-adhesion deep-textured lens transfer card production equipment. Figure 2 ; Figure 8 This is a front view of the end of the guide roller, cam, and bracket in a high-adhesion deep-textured lens transfer card production equipment; Figure 9 This is a three-dimensional structural diagram of two cams and a lead screw in a high-adhesion deep-textured lens transfer card production equipment; Figure 10 This is a schematic diagram of the cross-sectional structure of the end of the guide roller, the cam, and the support in a high-adhesion deep-textured lens transfer card production equipment.

[0020] The numbers in the diagram are as follows: 1. Take-up roller; 2. Support; 21. Guide roller; 211. Support shaft; 212. Roller; 2121. Ball bearing; 213. Second rotary drive motor; 22. Cam; 221. Support frame; 2211. Drive shaft; 2212. First rotary drive motor; 222. Mounting frame; 2221. Lead screw; 223. Distance sensor; 23. Fixed shaft; 24. Arc-shaped slide rail; 3. Deep textured lens UV molding film. Detailed Implementation

[0021] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 4As shown: A high-adhesion deep-textured lens transfer card production equipment includes a take-up roller 1, with two mirror-symmetrical supports 2 arranged beside the take-up roller 1; a guide roller 21 is horizontally and rotatably arranged between the two supports 2, and the guide roller 21 is used to support and guide the deep-textured lens UV molding film 3 for conveying; the deep-textured lens UV molding film 3 passes around the guide roller 21 along the winding direction and is connected to the take-up roller 1; a rotatable cam 22 is arranged on one of the supports 2, and the cam 22 exerts a regular action on the deep-textured lens UV molding film 3 through its own structural characteristics during rotation, so as to adjust the winding state of the deep-textured lens UV molding film 3.

[0023] When the production equipment is working, the take-up roller 1 is driven by a servo motor (not shown in the figure) to take up the deep textured lens UV molding film 3. During the movement of the deep textured lens UV molding film 3 along the take-up direction, it first passes around the guide roller 21 between two mirror-symmetrical supports 2. The guide roller 21 supports the deep textured lens UV molding film 3 and rotates with the conveying of the deep textured lens UV molding film 3, providing stable guidance and conveying support for the deep textured lens UV molding film 3.

[0024] Meanwhile, cam 22 on one of the supports 2 rotates. Due to its structural characteristics, cam 22 exerts a regular effect on the deep-textured lens UV molding film 3 passing through guide roller 21 during rotation. This effect can be a periodic push-pull force generated by the direct contact between cam 22 and the deep-textured lens UV molding film 3, or it can be indirectly altered by the contact between cam 22 and guide roller 21, thereby changing the tension distribution of the deep-textured lens UV molding film 3. This causes the deep-textured lens UV molding film 3 to undergo regular reciprocating adjustments or periodic tension balance along its width direction as it moves towards and is wound by the take-up roller 1. Specifically, when the protruding part of cam 22 acts on the deep-textured lens UV molding film 3 or guide roller 21, the local force on the deep-textured lens UV molding film 3 changes, causing it to slightly adjust to one side; when the flattened part of cam 22 acts, the deep-textured lens UV molding film 3 returns to its original position under the winding tension, thus forming a continuous and regular adjustment. This adjustment effectively counteracts the uneven coating thickness (including reference thickness and feature thickness) between the right tracking line, right pull gauge pin position line, and background information coating after UV molding and curing of the deep-textured lens UV molding film 3. It avoids wrinkles and poor adhesion of the deep-textured lens transfer area due to local tension imbalance during winding, thereby adjusting the winding state of the deep-textured lens UV molding film 3. This ensures that the edges of the deep-textured lens UV molding film 3 are neat after winding (the film edge swings regularly), greatly reduces the cumulative thickness difference between the right tracking line, right pull gauge pin position line (reference thickness and feature thickness) and the background information, increases the UV molding meterage, and reduces production costs.

[0025] Two supports 2 provide a stable mounting base for the guide roller 21, ensuring that the guide roller 21 can smoothly support and guide the deep-textured lens UV molding film 3 during transport, thus guaranteeing the transport stability of the deep-textured lens UV molding film 3 before winding. The cam 22, utilizing its regular rotation process, can specifically adjust the winding state of the deep-textured lens UV molding film 3, effectively improving wrinkling problems that may occur during winding and enhancing the winding quality of the high-adhesion deep-textured lens transfer deep-textured lens UV molding film 3. The overall structure is compact, and through the synergistic action of the guide roller 21 and cam 22, it optimizes the winding state while ensuring stable transport of the deep-textured lens UV molding film 3, meeting the production needs of the deep-textured lens UV molding film 3 and contributing to improved production process stability and final product quality.

[0026] like Figures 3 to 8 As shown: One bracket 2 is equipped with a fixed shaft 23, and the other bracket 2 is equipped with an arc-shaped slide rail 24 with the fixed shaft 23 as the center. One end of the guide roller 21 is rotatably connected to the fixed shaft 23, and the other end of the guide roller 21 is slidably engaged with the arc-shaped slide rail 24. The cam 22 can drive the end of the guide roller 21 close to the arc-shaped slide rail 24 by rotation.

[0027] During the rotation of cam 22, its contour exerts a regular thrust on the end of guide roller 21 that mates with arc-shaped slide rail 24. Since the arc-shaped slide rail 24 is centered on fixed shaft 23, guide roller 21, under the action of the thrust, uses fixed shaft 23 as a fulcrum, causing the other end to oscillate back and forth along the trajectory of arc-shaped slide rail 24. At the same time, guide roller 21 itself can rotate around its own axis to support and transport the deep-textured lens UV molding film 3. This movement allows guide roller 21 to maintain stable transport of the deep-textured lens UV molding film 3 while changing the contact angle with the deep-textured lens UV molding film 3 through its own regular oscillation, thereby indirectly forming a more precise and regular action on the deep-textured lens UV molding film 3.

[0028] The cooperation between the fixed shaft 23 and the arc-shaped slide rail 24 provides a clear trajectory constraint for the movement of the guide roller 21, ensuring that the swing of the guide roller 21 always revolves around the fixed shaft 23, avoiding instability in the effect on the deep-textured lens UV molding film 3 due to movement deviation. The guide roller 21 adopts a rotating connection and a sliding fit at both ends, which not only ensures the flexibility of the swing, but also reduces movement jamming through the guiding effect of the arc-shaped slide rail 24, making the drive of the guide roller 21 by the cam 22 smoother and more efficient. This controllable motion transmission allows the guide roller 21 to adjust the deep-textured lens UV molding film 3 more stably, further improving the adjustment accuracy of the winding state of the deep-textured lens UV molding film 3, helping to reduce quality problems caused by unstable adjustment during the winding process, and adapting to the winding accuracy requirements of the deep-textured lens UV molding film 3.

[0029] like Figures 3 to 8 and Figure 10 As shown: Cam 22 has a conical structure and is mounted on bracket 2, which can move along its own axis; a rotatable roller 212 is provided on one end of guide roller 21 near the arc-shaped slide rail 24, and roller 212 is engaged with the conical surface of cam 22.

[0030] During the rotation of cam 22, its conical outer circumference continuously contacts and rolls relative to roller 212. Because cam 22 is conical, different axial positions of the conical surface contacting roller 212 create varying thrusts, causing guide roller 21 to undulate along the curved slide rail 24 at one end. When adjusting the undulation of guide roller 21, cam 22 is moved along its own axis, changing the contact position between its conical surface and roller 212. When the contact position is close to the tip of cam 22, the conical surface inclination is smaller, resulting in less undulation of roller 212 and gentler undulation of guide roller 21. Conversely, when the contact position is close to the bottom of cam 22, the conical surface inclination is larger, resulting in greater undulation of roller 212 and more pronounced undulation of guide roller 21. Simultaneously, the rotatable nature of roller 212 reduces frictional resistance when in contact with the conical surface of cam 22, ensuring smoother operation.

[0031] By cooperating with the tapered cam 22 and the rotatable roller 212, the axial movement of the cam 22 can conveniently adjust the fluctuation of the guide roller 21. This eliminates the need to replace the cam 22, adapting to the winding adjustment requirements of different deep-textured lens UV molding films 3, thus improving the equipment's versatility and adjustment flexibility. The rotational setting of the roller 212 reduces frictional loss between it and the cam 22, extending the service life of the components. Furthermore, the stability of the tapered surface contact of the cam 22 ensures the regularity of the guide roller 21's fluctuation, making the adjustment of the winding state of the deep-textured lens UV molding film 3 more precise, further adapting to the high requirements for winding accuracy in transferring high-adhesion deep-textured lens UV molding films 3.

[0032] like Figures 5 to 10 As shown: The outer periphery of the roller 212 is provided with a plurality of rotatable balls 2121, which are distributed at equal intervals around the axis of the roller 212.

[0033] When the roller 212 contacts and moves relative to the conical surface of the cam 22, the ball 2121 directly contacts the conical surface of the cam 22. As the cam 22 rotates and the roller 212 undulates, the ball 2121 rotates flexibly according to the change in contact position, converting the sliding friction between the roller 212 and the cam 22 into the rolling friction of the ball 2121. This rolling contact effectively reduces the frictional resistance during relative movement, avoiding motion jamming or localized wear caused by excessive friction.

[0034] By setting multiple equidistant rotatable balls 2121 on the outer periphery of the roller 212, the frictional loss between the roller 212 and the cam 22 is significantly reduced, the wear rate of the components is reduced, and the service life of the roller 212 and the cam 22 is extended. At the same time, the reduction of frictional resistance makes the cooperation between the roller 212 and the cam 22 smoother, ensuring that the undulation of the guide roller 21 is more stable and regular, thereby ensuring more stable and precise adjustment of the winding state of the deep textured lens UV molding film 3, and better adapting to the stringent requirements for winding accuracy in the production of high adhesion deep textured lens UV molding film 3.

[0035] like Figures 5 to 10 As shown: There are two rollers 212. A support shaft 211 is provided on one end of the guide roller 21 near the arc-shaped slide rail 24. The two rollers 212 are arranged in a mirror image at both ends of the support shaft 211. There are two cams 22. The two cams 22 can move in opposite directions to cooperate with the two rollers 212 respectively.

[0036] Two cams 22 rotate synchronously, each engaging with its corresponding roller 212. By moving the two cams 22 in opposite directions, their contact positions with the rollers 212 are adjusted, causing the rollers 212 at both ends of the support shaft 211 to undulate accordingly. This allows the end of the guide roller 21 closest to the arc-shaped slide rail 24 to swing smoothly along the rail 24. Because the two rollers 212 are mirror-shaped and correspondingly engage with the two cams 22, the guide roller 21 experiences more balanced force at both ends during oscillation, avoiding tilting or jamming caused by unilateral force. Furthermore, the relative movement of the two cams 22 allows for flexible adjustment of the undulation amplitude on both sides of the guide roller 21, enabling targeted adjustment of different areas of the deep-textured lens UV molding film 3.

[0037] The corresponding cooperation between the double rollers 212 and the double cams 22 makes the swing of the guide roller 21 more stable and the force more balanced, effectively reducing the problem of displacement or wrinkling of the deep textured lens UV molding film that may be caused by unilateral adjustment; the relative movable setting of the two cams 22 can flexibly adjust the action amplitude on both sides according to the width, thickness and other characteristics of the deep textured lens UV molding film 3, adapting to the winding requirements of different specifications of deep textured lens UV molding film 3, further improving the accuracy and adaptability of adjustment, ensuring that the deep textured lens UV molding film 3 maintains neat edges during winding (the film edge swings regularly, converting the thickness difference between the right tracking line, the right pull gauge needle position line and the background information from the cumulative profile thickness difference to the dispersed profile thickness difference), meeting its high requirements for winding accuracy.

[0038] like Figures 5 to 10As shown: A support frame 221 is provided on the bracket 2 between the two cams 22. A rotatable drive shaft 2211 is provided on the support frame 221. Both cams 22 are sleeved on the drive shaft 2211 and can slide along the drive shaft 2211. A first rotary drive motor 2212 for rotating the drive shaft 2211 is provided on the top of the support frame 221.

[0039] The first rotary drive motor 2212 starts and drives the drive shaft 2211 to rotate. Since the two cams 22 are sleeved on the drive shaft 2211, the rotation of the drive shaft 2211 will synchronously drive the two cams 22 to rotate, so that the cams 22 keep in cooperation with the corresponding rollers 212 during the rotation, thereby driving the guide roller 21 to produce regular oscillation.

[0040] When it is necessary to adjust the contact position between the cam 22 and the roller 212 to change the fluctuation amplitude of the guide roller 21, the cam 22 can slide along the axial direction of the drive shaft 2211. At this time, the drive shaft 2211 continues to rotate, ensuring that the cam 22 does not interrupt its driving effect on the guide roller 21 during the position adjustment process. The support frame 221 provides a unified support reference for the drive shaft 2211, the cam 22, and the first rotary drive motor 2212, ensuring the coordination of the movement of each component.

[0041] In this structure, the drive shaft 2211 has the dual functions of rotation and allowing the cam 22 to slide. It not only realizes the rotational drive of the cam 22, ensuring its continuous and regular action on the guide roller 21, but also provides stable guidance for the position adjustment of the cam 22. This allows the cam 22 to maintain power transmission with the drive shaft 2211 during the adjustment process, avoiding the structural complexity caused by setting up separate rotation and sliding drive mechanisms, and improving the integration and ease of operation of the equipment. At the same time, this setting ensures the synchronization of the cam 22 position adjustment and rotation drive, reduces the interference on the winding state of the deep textured lens UV molding film 3 during the adjustment process, further ensures the accuracy of adjustment and the stability of equipment operation, and is more suitable for the strict requirements of winding accuracy in the production of high deep textured lens UV molding film 3.

[0042] The drive shaft 2211 can be configured as a spline shaft (the hexagonal prism-shaped drive shaft 2211 in the figure is only for illustration). Its outer circumferential surface is provided with key teeth extending along the axial direction. The inner holes of the two cams 22 are provided with keyways that are adapted to the key teeth. Through the cooperation of the key teeth and keyways, the drive shaft 2211 can transmit rotational power to the cams 22, causing the cams 22 to rotate synchronously, and also allows the cams 22 to slide along the extension direction of the key teeth.

[0043] like Figures 5 to 10As shown: The bracket 2 is provided with a mounting bracket 222 for supporting the rotation of the cam 22. The two mounting brackets 222 are slidably mounted on the bracket 2. The bracket 2 is provided with a lead screw 2221 that passes through the two mounting brackets 222. Both mounting brackets 222 are threadedly engaged with the lead screw 2221, and the two ends of the lead screw 2221 have threads with opposite directions of rotation.

[0044] The lead screw 2221 is driven by a servo motor. When the lead screw 2221 rotates, since the threads at its two ends rotate in opposite directions and the two mounting brackets 222 are respectively engaged with the threads at both ends of the lead screw 2221, the rotation of the lead screw 2221 is converted into relative sliding of the two mounting brackets 222. The sliding of the mounting brackets 222 drives the cams 22 on them to move synchronously, realizing the relative position adjustment of the two cams 22. At the same time, the cams 22 remain in the rotating state on the mounting brackets 222, continuously cooperating with the corresponding rollers 212 to drive the guide rollers 21 to swing.

[0045] By cooperating with the lead screw 2221 and the double mounting brackets 222, and utilizing the reverse threads at both ends of the lead screw 2221, the sliding of the two mounting brackets 222 is synchronized and reversed, ensuring that the relative position adjustment of the two cams 22 is precise and symmetrical, avoiding uneven force on the guide roller 21 due to unilateral adjustment deviation; the sliding cooperation between the mounting bracket 222 and the support 2 provides stable guidance for the movement of the cam 22, reducing shaking during the adjustment process; the transmission method of the lead screw 2221 has a self-locking characteristic, making the position adjustment of the cam 22 more stable and controllable, facilitating precise adjustment of the cooperation state between the cam 22 and the roller 212 according to the winding requirements of the deep textured lens UV molding film 3, thereby ensuring that the adjustment of the guide roller 21 on the deep textured lens UV molding film 3 is more stable, and improving the accuracy and reliability of the winding process of the deep textured lens UV molding film 3.

[0046] like Figure 5 and Figure 6 As shown: A distance sensor 223 is located between the two cams 22 to monitor the distance between the two cams 22.

[0047] The distance sensor 223 continuously monitors the distance between the two cams 22 in real time. When the two cams 22 slide relative to each other to adjust their positions, the distance sensor 223 can synchronously capture the change in the distance between them and promptly feed the monitored distance information back to the control part at the back end of the equipment. This allows the operator or control system to accurately control the relative position of the two cams 22, ensuring that their adjustment range is consistent with the preset requirements. This provides a precise reference for the position adjustment of the cams 22, effectively avoiding deviations in the fit between the cams 22 and the rollers 212 due to over- or under-adjustment, thereby preventing abnormal fluctuations of the guide rollers 21 from affecting the winding state of the deep textured lens UV molding film 3. At the same time, the real-time feedback of distance information facilitates the automated control of the cam 22 position adjustment, reduces human operation errors, improves adjustment efficiency, and ensures that the two cams 22 always maintain a relative position that adapts to the winding requirements of the deep textured lens UV molding film 3, further ensuring the stability and accuracy of the winding process of the deep textured lens UV molding film 3.

[0048] like Figures 1 to 4 As shown: A second rotary drive motor 213 for driving the guide roller 21 to rotate is provided at one end of the guide roller 21 away from the arc-shaped slide rail 24.

[0049] The starting of the second rotary drive motor 213 drives the guide roller 21 to rotate around its own axis, providing the main force for conveying the deep-textured lens UV molding film 3. This ensures that the deep-textured lens UV molding film 3 obtains stable traction as it moves around the guide roller 21 toward the take-up roller 1, ensuring a uniform and controllable conveying speed. At the same time, the guide roller 21 continues to rotate under the drive of the second rotary drive motor 213, cooperating with the oscillating motion of the guide roller 21 driven by the cam 22. This not only meets the stable conveying requirements of the deep-textured lens UV molding film 3, but also adjusts the take-up state through oscillation. The synergistic effect of both ensures that the deep-textured lens UV molding film 3 can maintain smooth movement and achieve precise take-up posture adjustment during the conveying process. Setting the drive position at the end away from the arc-shaped slide rail 24 avoids interference with the swing structure of the guide roller 21, ensuring that the rotation and swing actions do not affect each other and work together efficiently. This further improves the stability and reliability of the equipment in conveying and winding the deep textured lens UV molding film 3, and is more suitable for the strict requirements of the deep textured lens UV molding film 3 for conveying accuracy and winding quality.

[0050] like Figures 1 to 4 The following describes a deep-textured lens transfer card production process, applied to the aforementioned high-adhesion deep-textured lens transfer card production equipment, comprising the following steps: S1. Based on customer requirements and the printing files of deep textured lens transfer card, produce the corresponding film; S2. Based on the film from S1, select the deep textured lens nickel plate and the background holographic image, and produce the deep textured lens nickel plate using UV panelization and electroforming process (the nickel plate includes, but is not limited to, deep textured lens information, background information, front pull gauge pin position line, right side tracking line, right pull gauge pin position line, etc.). S3. BOPET: BOPET film is coated with water-based polyurethane coating on the entire surface using a gravure coating machine, dried in an oven, and then rolled up to obtain BOPET release film. S4. Roll up the holographic deep texture lens nickel plate containing background information obtained in S2 onto the molding roller of the UV molding machine. S5. The release layer of the BOPET release film obtained in S3 is coated with UV-curable coating on the entire surface of the coating device of the UV molding machine. After leveling in the UV molding machine oven, it reaches the UV molding device. S6. Under the pressure of the UV molding back pressure roller, the UV-curable coating on the BOPET release film is bonded to the holographic deep texture lens nickel plate on the UV molding roller to form the preset deep texture. At the same time, UV curing treatment is performed to fix the deep texture structure. S7. After the deep texture structure is set, it is conveyed along the winding direction to the guide roller. The cam on the support is activated, so that during its rotation, it exerts a regular effect on the BOPET deep texture lens UV molding film passing through the guide roller through its own structural characteristics. Through the alternating action of the cam's convex and flat parts, the pressure on both sides of the guide roller (assuming the left side is the fixed side and the right side is the cam side) changes regularly. (Initially, the pressure on the left and right sides of the guide roller is balanced, and the roll material is located at the center of the take-up roller (film edge reference point) when it enters the take-up roller. As the guide roller rotates, assuming the pressure on the cam side of the guide roller gradually increases, the effect of "pulling" the roll film is stronger, so the roll edge will slide towards the cam side (to the right, away from the film edge reference point). In this way, the roll edge will have a regularly offset area (to the right) on the take-up roller. This area can convert the thickness difference (reference thickness and feature thickness) between the right tracking line and the right pull gauge needle position line of the deep texture lens and the background information area from the cumulative profile height difference to the dispersed profile height difference. As the cam rotates, when the cam reaches its highest point, as...) As the cam rotates further, the pressure on the cam side begins to decrease, and correspondingly, the film roll moves to the left (closer to the film edge reference point). When the cam rotates to the point where the tension on the cam side and the fixed side are balanced, the pressure on both sides of the guide roller is balanced, and the film edge is just located at the film edge reference point. As the cam rotates further, the pressure on the cam side will be less than that on the fixed side. As the pressure on the cam side decreases, the film edge generates a sliding force to the left, causing the moving edge of the film to move away from the film surface reference point. In this way, the film edge will have a regularly offset area (to the left) on the take-up roller. This area can transform the thickness difference (its reference thickness and characteristic thickness) between the right tracking line and the right pull gauge needle position line of the deep texture lens and the background information coating from the cumulative line height difference to the dispersed surface height difference. The cam performs the above movements under the drive of the drive motor. The final result of the movements is to transform the thickness difference (reference thickness and characteristic thickness) between the right tracking line, the right pull gauge needle position line and the background information coating from the cumulative thickness difference to the dispersed surface thickness difference, which greatly increases the film winding length and avoids film wrinkles and film surface deformation. S8. Before the film reaches the take-up roller, the UV-cured coating is corona treated by a corona device. After corona treatment, the film is wound up to obtain a high-adhesion deep textured lens BOPET transfer film. S9. The high-adhesion deep-textured lens BOPET transfer film obtained in S8 is aluminized, slit, laminated with paper, peeled off, and positioned and cut to obtain a high-adhesion deep-textured lens transfer card. The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A high-adhesion deep-textured lens transfer card production equipment, comprising a take-up roller, characterized in that, Two mirror-symmetrical supports are provided on the side of the take-up roller; a horizontally rotatable guide roller is set between the two supports, which supports and guides the deep-textured lens UV molding film for conveying; the deep-textured lens UV molding film passes around the guide roller along the winding direction and connects to the take-up roller; a rotatable cam is provided on one of the supports, which, during rotation, exerts a regular effect on the deep-textured lens UV molding film through its own structural characteristics, so as to adjust the winding state of the deep-textured lens UV molding film.

2. The high-adhesion deep-textured lens transfer card production equipment according to claim 1, characterized in that, One of the brackets is equipped with a fixed shaft, and the other bracket is equipped with an arc-shaped slide rail centered on the fixed shaft. One end of the guide roller is rotatably connected to the fixed shaft, and the other end of the guide roller is slidably engaged with the arc-shaped slide rail. The cam can drive the end of the guide roller close to the arc-shaped slide rail by rotating.

3. The high-adhesion deep-textured lens transfer card production equipment according to claim 2, characterized in that, The cam has a conical structure and is mounted on a support, allowing it to move along its own axis. A rotatable roller is mounted on one end of the guide roller near the arc-shaped slide rail, and the roller engages with the conical surface of the cam.

4. The high adhesion deep textured lens transfer card production equipment according to claim 3, characterized in that, The outer periphery of the roller is provided with multiple rotatable balls, which are distributed at equal intervals around the axis of the roller.

5. The high-adhesion deep-textured lens transfer card production equipment according to claim 3, characterized in that, There are two rollers, and a support shaft is provided at one end of the guide roller near the arc-shaped slide rail. The two rollers are set at both ends of the support shaft in a mirror state. There are two cams, which can move in opposite directions to cooperate with the two rollers respectively.

6. The high-adhesion deep-textured lens transfer card production equipment according to claim 5, characterized in that, A support frame is provided between the two cams on the bracket. A rotatable drive shaft is provided on the support frame. Both cams are sleeved on the drive shaft and can slide along the drive shaft. A first rotary drive motor for rotating the drive shaft is provided on the top of the support frame.

7. The high-adhesion deep-textured lens transfer card production equipment according to claim 5, characterized in that, The bracket is equipped with mounting brackets for supporting the rotation of the cam. Two mounting brackets are slidably mounted on the bracket. The bracket is provided with a lead screw that passes through the two mounting brackets. Both mounting brackets are threadedly engaged with the lead screw, and the two ends of the lead screw have threads with opposite directions of rotation.

8. The high adhesion deep textured lens transfer card production equipment according to claim 5, characterized in that, A distance sensor is located between the two cams to monitor the distance between them.

9. The high-adhesion deep-textured lens transfer card production equipment according to claim 2, characterized in that, A second rotary drive motor for driving the guide roller to rotate is provided at the end of the guide roller away from the arc-shaped slide rail.

10. A process for producing deep-textured lens transfer cardboard, applied to the high-adhesion deep-textured lens transfer cardboard production equipment described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Based on customer requirements and the printing files of deep textured lens transfer card, produce the corresponding film; S2. Based on the film from S1, select the deep textured lens nickel plate and the background holographic image, and produce the deep textured lens nickel plate through UV panelization and electroforming process. S3. BOPET film is coated with water-based polyurethane coating on the entire surface using a gravure coating machine, dried in an oven and then rolled up to obtain BOPET release film. S4. Roll up the holographic deep texture lens nickel plate containing background information obtained in S2 onto the molding roller of the UV molding machine. S5. The release layer of the BOPET release film obtained in S3 is coated with UV-curable coating on the entire surface of the coating device of the UV molding machine. After being leveled in the UV molding machine oven, it reaches the UV molding device. S6. Under the pressure of the UV molding back pressure roller, the UV-curable coating on the BOPET release film is bonded to the holographic deep texture lens nickel plate on the UV molding roller to form the preset deep texture. At the same time, UV curing treatment is performed to fix the deep texture structure. S7. After the deep texture structure is fixed, it is conveyed to the guide roller along the winding direction. The cam on the bracket is activated so that it can form a regular action on the deep texture lens UV molding film passing through the guide roller through its own structural characteristics during rotation. Through the alternating action of the convex and flat parts of the cam, the pressure on both sides of the guide roller changes regularly. S8. Before the film reaches the take-up roller, the UV-cured coating is corona treated by a corona device. After corona treatment, the film is wound up to obtain a high-adhesion deep-textured lens BOPET transfer film. S9. The high-adhesion deep-textured lens BOPET transfer film obtained in S8 is aluminized, slit, laminated with paper, peeled off, and positioned and cut to obtain high-adhesion deep-textured lens transfer card.

Images