PET plain laser film preparation device and preparation process

Abstract

The invention relates to a PET plain surface laser film preparation device and technology, and relates to the field of PET plain surface laser film preparation equipment.The PET plain surface laser film preparation device comprises an unwinding mechanism, a corona treatment unit, a coating unit, a UV curing unit and a winding mechanism, an unprocessed film material sequentially penetrates through the unwinding mechanism, the corona treatment unit, the coating unit, the UV curing unit and the winding mechanism, and the unprocessed film material sequentially penetrates through the unwinding mechanism, the corona treatment unit, the coating unit, the UV curing unit and the winding mechanism; the winding mechanism comprises a winding frame, a driving motor, an intermittent motor, a driving disc and an unwinding roller, the driving motor and the intermittent motor are installed on the winding frame, an output shaft of the intermittent motor is connected with the axis part of the driving disc, and the winding roller is rotationally connected to the winding frame; one end of the winding roller is provided with a limiting disc corresponding to the driving disc through a one-way transmission mechanism, and the other end of the winding roller is connected with an output shaft of the driving motor through the one-way transmission mechanism. The UV curing box has the effect of further ensuring the curing effect of the UV curing box on the membrane material.

Description

Technical Field

[0001] The present application relates to the field of PET plain laser film preparation equipment, and in particular to a PET plain laser film preparation device and preparation process. Background Art

[0002] PET plain laser film is a special film material, which is usually made of polyethylene terephthalate (PET) and given a laser effect through a specific process. This material has a wide range of applications in packaging, labels, decorative materials and other fields due to its unique optical properties and decorative properties.

[0003] At present, the production of laser film requires the activation of the outer surface of the unprocessed film material through a corona treatment unit to enhance the adhesion of the coating, and then the curing material is applied to its surface through a coating unit, and finally it enters a UV curing box to cure the coating to form a laser layer.

[0004] When producing laser films, the existing PET plain laser film preparation device usually uses a motor to drive the roller to continuously reel up the film. However, in some special curing applications and when processing thicker curing materials, continuous and uninterrupted reeling will cause the film material to stay in the UV curing box for a shorter time, thereby failing to ensure a good curing effect. Summary of the invention

[0005] In order to further ensure the curing effect of the UV curing box on the film material, the present application provides a PET plain laser film preparation device.

[0006] The present application provides a PET plain laser film preparation device that adopts the following technical solution: A PET plain laser film preparation device comprises a unwinding mechanism, a corona treatment unit, a coating unit, a UV curing unit and a winding mechanism, wherein the unprocessed film material passes through the unwinding mechanism, the corona treatment unit, the coating unit, the UV curing unit and the winding mechanism in sequence, wherein the winding mechanism comprises a winding frame, a driving motor, an intermittent motor, a driving disk and a feeding roller, wherein the driving motor and the intermittent motor are mounted on the winding frame, wherein the output shaft of the intermittent motor is connected to the axial center of the driving disk, wherein the winding roller is rotatably connected to the winding frame, wherein a limiting disk is mounted corresponding to the driving disk via a one-way transmission mechanism at one end of the winding roller, wherein the other end of the winding roller is connected to the output shaft of the driving motor via a one-way transmission mechanism, wherein a plurality of limiting grooves are provided on the limiting disk, wherein the plurality of limiting grooves are arranged at equal intervals on the circumferential part of the limiting disk, wherein a driving block is arranged on the driving disk, wherein the driving block can slide in the limiting groove and squeeze the side wall of the limiting groove to drive the limiting disk to rotate. By adopting the above technical solution, the intermittent motor and drive disk in the winding mechanism are used in conjunction, so that the winding roller can achieve periodic stopping and running, ensuring that the film material stays in the UV curing unit for a long enough time, thereby improving the curing effect; the driving block on the drive disk can be accurately embedded in the limit groove of the limit disk, and drive the limit disk to rotate by squeezing the side wall of the limit groove, thereby further controlling the rotation angle of the winding roller and enhancing the accuracy and stability of the winding process; the design of the one-way transmission mechanism enables the winding roller to be driven to rotate by the drive disk or drive motor only when subjected to positive force, and to slide freely during reverse movement, thereby avoiding unnecessary mechanical wear and extending the service life of the equipment.

[0007] In a specific possible implementation scheme, an arc groove is provided on the driving disk, and limiting blocks are installed on the surface of the limiting plates adjacent to the middle part of the limiting groove, and the limiting blocks can slide in the arc groove.

[0008] By adopting the above technical solution, the sliding of the limit block in the arc groove can effectively control the relative position between the drive disk and the limit disk, ensuring that the drive block accurately enters the limit groove and drives the limit disk to rotate, so that the winding roller can achieve intermittent winding action. This design not only increases the residence time of the film material in the UV curing unit, ensuring the full curing of the coating, but also enhances the stability and reliability of the entire device.

[0009] In a specific possible implementation scheme, it also includes a bending roller and a tension adjustment mechanism, which are installed in sequence between the unwinding mechanism and the corona treatment unit, and the unprocessed film material passes through the bending roller and the tension adjustment mechanism in sequence. The diameter of the two ends of the bending roller is smaller than the diameter of the middle part, and the diameter decreases evenly from the two ends to the middle part.

[0010] By adopting the above technical solution, the design of the bending roller enables the unprocessed film to better fit the curved surface of the bending roller when passing through the bending roller, thereby effectively reducing the relaxation of the film material and improving the tension stability of the film material. At the same time, the setting of the tension adjustment mechanism can flexibly adjust the tension of the film material, ensuring the smooth transmission of the film material throughout the production process and avoiding deformation or damage of the film material caused by uneven tension. This not only improves the operating efficiency of the equipment, but also improves the quality of the final product.

[0011] In a specific feasible implementation scheme, the tension adjustment mechanism includes an adjustment frame and an adjustment roller, and slide grooves are provided on both sides of the adjustment frame. Slide blocks are rotatably connected at both ends of the adjustment roller, and the slide blocks are slidably connected in the slide grooves. An adjustment screw rod is rotatably connected to the adjustment frame, and the adjustment screw rod is drivingly connected to the slider.

[0012] By adopting the above technical solution, the tension adjustment mechanism can achieve precise control of the tension of the unprocessed film material. Specifically, the slide groove on the adjustment frame cooperates with the sliders at both ends of the adjustment roller, so that the adjustment roller can move up and down in the slide groove, thereby adjusting the tightness of the film material. At the same time, the drive connection design between the adjustment screw and the slider allows the operator to accurately control the position of the slider by rotating the adjustment screw, thereby ensuring the stability and consistency of the film material throughout the production process. This not only improves the reliability and production efficiency of the equipment, but also effectively avoids product quality problems caused by improper film material tension.

[0013] In a specific possible implementation scheme, it also includes a cleaning roller, which is installed between the unwinding mechanism and the corona treatment unit, and an adhesive sleeve is installed on the outer ring surface of the cleaning roller.

[0014] By adopting the above technical solution, the cleaning roller can effectively remove dust and impurities on the surface of the unprocessed film material, improve the effect of subsequent corona treatment, and ensure the adhesion of the coating and the quality of the final product.

[0015] In a specific feasible implementation scheme, the coating unit includes a base plate, on which two vertical plates are fixedly connected, and the adjacent sides of the two vertical plates are jointly rotatably connected to two coating rollers, and the rotation points on one side of the two coating rollers are fixedly connected to gears, and the two gears are meshed with each other. A fixed block is fixedly connected to the front side of the vertical plate on one side, and a coating motor is fixedly connected to the fixed block, and the output shaft of the coating motor is fixedly connected to the front side of the gear on one side. Two glue brushes are commonly fixedly arranged on the adjacent sides of the two vertical plates, and the two glue brushes are respectively located on the far sides of the two coating rollers, and two guide frames are commonly fixedly connected to the adjacent sides of the two vertical plates, and blocks are fixedly arranged on the adjacent sides of the two guide frames, and a drying body is arranged on the guide frame on one side.

[0016] By adopting the above technical solution, the PET plain laser film preparation device realizes synchronous rotation through the cooperation of two coating rollers and their gears, ensuring the uniformity and consistency of the coating. At the same time, the use of the drive motor makes the entire system more stable and reliable, reducing the need for manual intervention. The design of two glue brushes can effectively improve the coating efficiency and quality, and reduce the uneven coating caused by pauses or speed changes. The setting of the guide frame and the card block helps to accurately control the position of the film material and avoid offset and wrinkle problems. The addition of the drying body further improves the curing effect, shortens the production cycle, and improves production efficiency and product quality.

[0017] In a specific possible implementation manner, a feed roller group and a discharge roller group are fixedly arranged on the bottom plate, and both the feed roller group and the discharge roller group are double-material rollers.

[0018] By adopting the above technical solution, the setting of the feed roller group and the discharge roller group can improve the stability of the film material during transportation and reduce the deviation of the film material due to tension changes during transportation. The design of the double material roller allows the film material to enter the subsequent process more smoothly, ensuring the consistency and reliability of the coating and curing effects.

[0019] In a specific feasible implementation scheme, the one-way transmission mechanism includes a transmission seat, an auxiliary seat and an auxiliary rod, the transmission seat is installed at the axial center of the limit disk, and the auxiliary seat is installed on the winding roller corresponding to the transmission seat, and a plurality of inclined grooves are evenly opened on the circumferential part of the surface of one side of the transmission seat adjacent to the transmission seat, and the side wall on one side of the inclined groove is arranged parallel to the axis of the transmission seat, and the side wall on the other side is inclined relative to the axis of the transmission seat. The auxiliary rod is installed on the winding roller and arranged perpendicular to the axis of the winding roller. The auxiliary seat is rotatably connected to the winding roller, and an auxiliary block is installed on the surface of one side of the auxiliary seat adjacent to the transmission seat, and the auxiliary block is arranged in the inclined groove, and the auxiliary seat is driven to rotate by the auxiliary block pressing against the side wall of the inclined groove parallel to the transmission axis. When the auxiliary block moves in the opposite direction, it slides along the inclined side wall of the inclined groove to the other inclined groove, and the output shaft of the drive motor is connected to the winding roller in the same way.

[0020] By adopting the above technical solution, the one-way transmission mechanism can ensure that the winding roller rotates synchronously with the limit disk only when rotating in the forward direction, and will not affect the position of the limit disk when rotating in the reverse direction or stopping. This makes the winding process more stable and controllable, especially in the intermittent winding process under the control of the intermittent motor, which can effectively avoid the problem of film material loosening or damage caused by reverse force. At the same time, the design of the inclined groove makes the movement of the auxiliary block in different directions produce different effects, further improving the reliability and stability of the transmission. In addition, the output shaft of the drive motor also adopts the same one-way transmission mechanism to ensure the coordinated operation of the entire winding system.

[0021] In a specific possible implementation scheme, it also includes a limit spring, one end of which is connected to the side wall of the winding roller, and the other end of which is connected to the inner side wall of the auxiliary seat.

[0022] By adopting the above technical solution, the setting of the limit spring can effectively prevent the auxiliary seat from being out of the slot during the reverse movement, ensuring that the winding process is more stable and reliable. At the same time, the limit spring can also provide a certain buffering effect when the auxiliary block slides into the next inclined slot, reducing mechanical shock and extending the service life of the equipment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The intermittent rotation of the winding roller is controlled by an intermittent motor, so that the residence time of the film material in the UV curing box is effectively extended, the curing effect of the coating is improved, and the problem of insufficient curing caused by continuous winding in the prior art is solved; 2. The design of the winding mechanism enables the drive motor and the intermittent motor to work together, achieving effective control of the film tension, avoiding the stretching deformation of the film during the winding process, and further improving production stability and product quality; 3. The driving block on the driving disc cooperates with the limiting groove on the limiting disc to ensure the precise movement of the winding roller in each cycle, improve the working accuracy and reliability of the equipment, and reduce the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0025] Figure 2 This is a schematic diagram of the structure of the tension adjustment mechanism of an embodiment of the present application.

[0026] Figure 3 This is a schematic diagram of the structure of the coating unit according to an embodiment of the present application.

[0027] Figure 4 It is a cross-sectional view of a coating unit according to an embodiment of the present application.

[0028] Figure 5 It is a structural schematic diagram of the winding mechanism of an embodiment of the present application.

[0029] Figure 6 This is a schematic diagram of the fracture of the winding mechanism of the embodiment of the present application.

[0030] Figure 7 This is a schematic diagram of a fracture from another perspective of the winding mechanism of the embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. unwinding mechanism; 2. corona treatment unit; 3. coating unit; 31. bottom plate; 32. vertical plate; 33. coating roller; 34. gear; 35. coating motor; 36. glue brush; 37. guide frame; 38. drying machine; 4. UV curing unit; 5. winding mechanism; 51. winding frame; 52. driving motor; 53. intermittent motor; 54. driving disk; 541. driving block; 542. arc groove; 55. unwinding roller; 56. limiting disk; 561. limiting groove; 562. limiting block; 6. bending roller; 7. tension adjustment mechanism; 71. adjusting frame; 711. slide groove; 72. adjusting roller; 73. slider; 74. adjusting screw rod; 8. cleaning roller; 9. one-way transmission mechanism; 91. transmission seat; 92. auxiliary seat; 93. auxiliary rod; 94. limiting spring. DETAILED DESCRIPTION

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The embodiment of the present application discloses a device for preparing a PET plain laser film.

[0034] like Figure 1 As shown, the PET plain laser film preparation device includes a unwinding mechanism 1, a corona treatment unit 2, a coating unit 3, a UV curing unit 4 and a winding mechanism 5. The unwinding mechanism 1 includes an unwinding frame, an unwinding roller and a magnetic powder clutch. The unwinding roller is installed on the unwinding frame, and the unprocessed film material is rolled on the unwinding roller. The magnetic powder clutch is connected to one end of the unwinding roller to prevent the unwinding roller from unwinding the film too fast. The unprocessed film material passes through the corona treatment unit 2, the coating unit 3 and the UV curing unit 4 in sequence for processing and then is wound on the winding mechanism 5.

[0035] In the embodiment of the present application, a bending roller 6, a tension adjustment mechanism 7 and a cleaning roller 8 are also included. The bending roller 6, the tension adjustment mechanism 7 and the cleaning roller 8 are sequentially installed between the unwinding mechanism 1 and the corona treatment unit 2. The bending roller 6 is designed to adjust the tension of the film material so that it can maintain a suitable tension state in the subsequent process. The diameter of the two ends of the bending roller 6 is smaller than the diameter of the middle part, and the diameter decreases uniformly from the two ends to the middle part. Such a design can make the film material gradually flatten when passing through the bending roller 6, eliminate wrinkles, and improve flatness.

[0036] The tension adjustment mechanism 7 includes an adjustment frame 71 and an adjustment roller 72. The adjustment frame 71 is provided with a slide groove 711 on both sides. The two ends of the adjustment roller 72 are rotatably connected with a slider 73. The slider 73 is slidably connected in the slide groove 711. The adjustment frame 71 is rotatably connected with an adjustment screw 74, and the adjustment screw 74 is drivingly connected to the slider 73. By rotating the adjustment screw 74, the position of the slider 73 in the slide groove 711 can be accurately controlled, and then the height of the adjustment roller 72 can be adjusted to achieve fine control of the tension of the film material. The material of the adjustment screw 74 can be selected from high-strength alloy steel to ensure its durability and reliability.

[0037] An adhesive sleeve is installed on the outer ring surface of the cleaning roller 8. The main function of the adhesive sleeve is to absorb dust and impurities on the surface of the film material, ensuring that the surface of the film material is clean and pollution-free, which is conducive to the adhesion of subsequent coatings. The adhesive sleeve can be made of high molecular polymer material, which has strong dust absorption ability and easy cleaning characteristics.

[0038] The coating unit 3 includes a bottom plate 31, on which two vertical plates 32 are fixedly connected, and two coating rollers 33 are rotatably connected to the adjacent sides of the two vertical plates 32, and gears 34 are fixedly connected to the rotating parts of one side of the two coating rollers 33, and the two gears 34 are meshed with each other. A fixed block is fixedly connected to the front of one side vertical plate 32, and a coating motor 35 is fixedly connected to the fixed block, and the output shaft of the coating motor 35 is fixedly connected to the front of one side gear 34, and two glue brushing machines 36 are fixedly arranged on the adjacent sides of the two vertical plates 32, and the two glue brushing machines 36 are respectively located on the far sides of the two coating rollers 33, and two guide frames 37 are fixedly connected to the adjacent sides of the two vertical plates 32, and limiting blocks are fixedly arranged on the adjacent sides of the two guide frames 37, and a drying machine 38 body is arranged on one side guide frame 37, and by setting the guide Frame 37, when the cloth is fed in from the feed roller group, it will first enter the guide frame 37 on one side. During this process, due to the frame protection of the guide frame 37, the cloth will not be easily contaminated with dust during transportation, and the space limitation of the guide frame 37 helps to prevent the wide surface of the cloth from being tilted during transportation, which helps to ensure that the cloth can be evenly coated. During this process, under the operation of the coating motor 35, the two coating rollers 33 are driven by the gear 34 meshing transmission to rotate up and down, so that the moving cloth can be coated up and down. After the cloth is coated, it will enter the guide frame 37 on the other side. The guide frame 37 uses the dryer 38 to dry the passing cloth in time. In this way, when the cloth is discharged, its surface has been dried and solidified, making it difficult for dust to be contaminated, which helps to ensure a certain production quality of the laser film.

[0039] A feed roller group is installed at the feeding end of the bottom plate 31, and a discharging roller group is installed at the discharging end of the bottom plate 31. Both the feed roller group and the discharging roller group are configured as double rollers. The diameter of the guide frame 37 corresponds to the material gap between the two coating rollers. By configuring the feed roller group and the discharging roller group as double rollers, the material transportation can be more stable. The discharging roller group can roll the cloth during the discharging process, which helps to make the coating on the surface of the cloth adhere firmly.

[0040] The winding mechanism 5 includes a winding frame 51, a driving motor 52, an intermittent motor 53, a driving disc 54 and a delivery roller 55. The delivery roller 55 is installed on the driving frame. Two ends of the delivery roller 55 pass through the side walls of the winding frame 51 on both sides and can rotate relative to the winding frame 51. The driving motor 52 and the intermittent motor 53 are respectively installed at two ends of the winding roller. The driving motor 52 is connected to the winding roller through a one-way transmission mechanism 9. The driving disc 54 is fixedly connected to the output shaft of the intermittent motor 53. The driving disc 54 is limited to a semicircular disc. The axial center of the driving disc 54 is fixedly connected to the output shaft of the intermittent motor 53. A support frame is installed between the driving motor 52 and the delivery frame. The support frame is rotatably connected to a limiting disc 56. The limiting disc 56 is provided with four limiting grooves 561. The four limiting grooves 561 are arranged at equal intervals. It is arranged on the circumferential part of the limit plate 56, and a driving rod is installed at the axial part of the driving plate 54. The angle formed between the driving rod and the bottom edges on both sides of the driving plate 54 is 90°. A driving block 541 is installed on the driving rod. The driving block 541 is preferably set as a columnar block. The driving block 541 can slide in the limit groove 561 and squeeze the side wall of the limit groove 561 to drive the limit plate 56 to rotate. An arc groove 542 is arranged on the side wall of the driving plate 54 adjacent to the limit plate 56. The arc groove 542 is preferably set as a semicircle, and the distance from the arc groove 542 to the axial part of the driving plate 54 is equal everywhere. A limiting block 562 is arranged on the disk surface between adjacent arc grooves 542 of the limit plate 56. The distances from the limiting block 562 to the limiting grooves 561 on both sides are set equally, and the limiting block 562 can slide in the limiting groove 561.

[0041] The one-way transmission mechanism 9 includes a transmission seat 91, an auxiliary seat 92 and an auxiliary rod 93. The transmission seat 91 is installed on the axial center of the limit plate 56, and the auxiliary seat 92 is installed on the winding roller corresponding to the transmission seat 91. A plurality of inclined grooves are evenly opened on the circumferential part of the surface of the transmission seat 91 adjacent to the transmission seat 91. The side wall of one side of the inclined groove is parallel to the axis of the transmission seat 91, and the side wall of the other side is inclined relative to the axis of the transmission seat 91. The auxiliary rod 93 is installed on the winding roller and is arranged perpendicular to the axis of the winding roller. The auxiliary seat 92 is rotatably connected to the winding roller. An auxiliary block is installed on the surface of the auxiliary seat 92 adjacent to the transmission seat 91. The auxiliary block is arranged in the inclined groove. The auxiliary seat 92 is driven to rotate by the auxiliary block pressing against the side wall of the inclined groove parallel to the transmission axis. When the auxiliary block moves in the opposite direction, it slides along the inclined side wall of the inclined groove to the other inclined groove. The output shaft of the drive motor 52 is connected to the winding roller in the same way.

[0042] It also includes a limit spring 94 , one end of which is connected to the side wall of the winding roller, and the other end of which is connected to the inner wall of the auxiliary seat 92 .

[0043] The implementation principle of the PET plain laser film preparation device of the present application embodiment is as follows: by introducing an intermittent motor 53 and a one-way transmission mechanism 9, the winding mechanism 5 can stop working when needed, thereby extending the residence time of the film material in the UV curing box to ensure that the coating is fully cured. This design can not only improve the curing effect, but also improve product quality and production efficiency. Compared with the traditional continuous winding method, this solution is more flexible and controllable, has strong adaptability, and is particularly suitable for thicker curing materials or special applications.

[0044] The embodiment of the present application discloses a method for grouting and plugging water in underground construction. The grouting and plugging auxiliary device for underground construction to deal with water inrush in the embodiment of the present application is used, and the following steps are included: S10: installing the unprocessed film material on the unwinding mechanism, and connecting one end of the unprocessed film material to the winding mechanism 5; S20: According to the needs of processing the film material, the intermittent motor 53 or the driving motor 52 is started to adjust the film release speed; S30: treating the film material by the corona treatment unit 2; S40: coating the film material by the coating unit 3; S50: curing the film material through the UV curing unit 4; S60: The processed film material is rolled up by the rolling mechanism 5 .

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A PET plain laser film preparation device, comprising an unwinding mechanism (1), a corona treatment unit (2), a coating unit (3), a UV curing unit (4) and a winding mechanism (5), wherein the unprocessed film material sequentially passes through the unwinding mechanism (1), the corona treatment unit (2), the coating unit (3), the UV curing unit (4) and the winding mechanism (5), characterized in that: The winding mechanism (5) comprises a winding frame (51), a driving motor (52), an intermittent motor (53), a driving disk (54) and a delivery roller (55); the driving motor (52) and the intermittent motor (53) are mounted on the winding frame (51); the output shaft of the intermittent motor (53) is connected to the axial center of the driving disk (54); the winding roller is rotatably connected to the winding frame (51); one end of the winding roller is mounted with a limit disk corresponding to the driving disk (54) via a one-way transmission mechanism (9). (56), the other end of the winding roller is connected to the output shaft of the driving motor (52) through a one-way transmission mechanism (9), a plurality of limiting grooves (561) are provided on the limiting disk (56), and the plurality of limiting grooves (561) are arranged at equal intervals on the circumference of the limiting disk (56), and a driving block (541) is provided on the driving disk (54), and the driving block (541) can slide in the limiting groove (561) and squeeze the side wall of the limiting groove (561) to drive the limiting disk (56) to rotate.

2. The PET plain laser film preparation device according to claim 1, characterized in that: The driving disk (54) is provided with an arc-shaped groove (542), and the limiting plate surface adjacent to the middle part of the limiting groove (561) is equipped with a limiting block (562), and the limiting block (562) can slide in the arc-shaped groove (542).

3. The PET plain laser film preparation device according to claim 1, characterized in that: It also includes a bending roller (6) and a tension adjustment mechanism (7), wherein the bending roller (6) and the tension adjustment mechanism (7) are sequentially installed between the unwinding mechanism (1) and the corona treatment unit (2), and the unprocessed film material passes through the bending roller (6) and the tension adjustment mechanism (7) in sequence, and the diameter of the two ends of the bending roller (6) is smaller than the diameter of the middle part, and the diameter decreases uniformly from the two ends to the middle part.

4. The PET plain laser film preparation device according to claim 3, characterized in that: The tension adjustment mechanism (7) comprises an adjustment frame (71) and an adjustment roller (72); slide grooves (711) are provided on both sides of the adjustment frame (71); two ends of the adjustment roller (72) are rotatably connected with sliders (73); the sliders (73) are slidably connected in the slide grooves (711); an adjustment screw rod (74) is rotatably connected to the adjustment frame (71); and the adjustment screw rod (74) is drivingly connected to the slider (73).

5. The PET plain laser film preparation device according to claim 1, characterized in that: It also comprises a cleaning roller (8), which is installed between the unwinding mechanism (1) and the corona treatment unit (2), and an adhesive sleeve is installed on the outer ring surface of the cleaning roller (8).

6. The PET plain laser film preparation device according to claim 1, characterized in that: The coating unit (3) comprises a bottom plate (31), two vertical plates (32) are fixedly connected to the bottom plate (31), two coating rollers (33) are connected to the adjacent sides of the two vertical plates (32) for common rotation, a gear (34) is fixedly connected to the rotation part of one side of the two coating rollers (33), the two gears (34) are meshed with each other, a fixed block is fixedly connected to the front side of the vertical plate (32) on one side, a coating motor (35) is fixedly connected to the fixed block, and the coating The output shaft of the cloth motor (35) is fixedly connected to the front side of the gear (34) on one side; two glue brushing machines (36) are fixedly arranged on the adjacent sides of the two vertical plates (32); the two glue brushing machines (36) are respectively located on the distant sides of the two coating rollers; two guide frames (37) are fixedly connected to the adjacent sides of the two vertical plates (32); blocks are fixedly arranged on the adjacent sides of the two guide frames (37); and a drying machine (38) body is arranged on the guide frame (37) on one side.

7. The PET plain laser film preparation device according to claim 6, characterized in that: A feed roller group and a discharge roller group are fixedly arranged on the bottom plate (31), and both the feed roller group and the discharge roller group are double-material rollers.

8. The PET plain laser film preparation device according to claim 1, characterized in that: The one-way transmission mechanism (9) comprises a transmission seat (91), an auxiliary seat (92) and an auxiliary rod (93); the transmission seat (91) is mounted on the axis of the limit plate (56); the auxiliary seat (92) is mounted on the winding roller corresponding to the transmission seat (91); a plurality of inclined grooves are evenly arranged on the circumferential portion of the surface of one side of the transmission seat (91) adjacent to the transmission seat (91); a side wall of one side of the inclined groove is arranged parallel to the axis of the transmission seat (91); and a side wall of the other side is arranged obliquely relative to the axis of the transmission seat (91); The auxiliary rod (93) is installed on the winding roller and is arranged perpendicular to the axis of the winding roller. The auxiliary seat (92) is rotatably connected to the winding roller. An auxiliary block is installed on the surface of the auxiliary seat (92) adjacent to the transmission seat (91). The auxiliary block is arranged in the inclined groove. The auxiliary seat (92) is driven to rotate by the auxiliary block pressing against the side wall of the inclined groove parallel to the transmission axis. When the auxiliary block moves in the reverse direction, it slides along the inclined side wall of the inclined groove to another inclined groove. The output shaft of the drive motor (52) is connected to the winding roller in the same way.

9. The PET plain laser film preparation device according to claim 8, characterized in that: It also includes a limit spring (94), one end of which is connected to the side wall of the winding roller, and the other end of which is connected to the inner wall of the auxiliary seat (92).

10. A process for preparing a PET plain laser film, using the PET plain laser film preparation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S10: installing the unprocessed film material onto the unwinding mechanism, and connecting one end of the unprocessed film material to the winding mechanism (5); S20: according to the needs of processing the film material, start the intermittent motor (53) or the driving motor (52) to adjust the film release speed; S30: treating the film material by a corona treatment unit (2); S40: coating the film material by means of a coating unit (3); S50: curing the film material through a UV curing unit (4); S60: The processed film material is rolled up by a rolling mechanism (5).

Images