A laminating device for producing tempered PS plate

Abstract

The utility model relates to the field of PS board, concretely relates to a laminating device for toughened PS board production, include: the blowing box body with transmission cavity, the both sides of blowing box body are respectively erected with transmission mechanism, and the both sides on one transmission mechanism are equipped with support frame respectively, the bottom between the top between support frame and inside is installed with membrane roll drive mechanism respectively, the top and the bottom of one transmission mechanism are installed with the flattening mechanism that has the function of pressing respectively, the laminating mechanism is installed on one transmission mechanism, the laminating mechanism and flattening mechanism are installed on the same transmission mechanism respectively. Through the telescopic link assembly drive swing arm swing, make flattening roll can adjust position flexibly, pressurize to protection film, and in the process of paying off protection film, flattening roll will carry on the rotation, and through the effect of its surface spiral groove, the concentrated tension of membrane material middle region is converted into horizontal component force, eliminates the middle wrinkle, ensures that the film is closely attached with the board material.

Description

Technical Field

[0001] This utility model relates to the field of PS boards, and in particular to a coating device for the production of tempered PS boards. Background Technology

[0002] PS sheet is a thermoplastic sheet made of polystyrene as the main raw material through specific processes such as extrusion. With the continuous improvement of material performance requirements in various industries, PS sheet can be coated with a hardening liquid and cured to form a composite sheet with a hard coating, also known as tempered PS sheet. This hardened PS sheet retains the original PS sheet's high transparency and easy processing and molding characteristics, while significantly improving surface hardness, wear resistance and chemical corrosion resistance, thereby expanding its application fields. Tempered PS sheet needs to be coated after curing, mainly to prevent the surface from being scratched, contaminated or worn during transportation and storage, ensuring that the sheet remains in good condition before processing.

[0003] Regarding the aforementioned technologies, the inventors discovered that during the lamination process, when the unwinding roller containing the protective film is pressurized by the lamination heating roller, the uneven tension distribution in the middle area of ​​the roller and the elasticity of the protective film itself cause the unwound film to exhibit wavy wrinkles. This deformation hinders the smooth expulsion of air during lamination, forming air bubbles. Furthermore, if dust or particles remain on the surface of the PS board, the compressed air cannot completely escape during the lamination process, also forming air bubbles between the film and the board. The air bubble problem not only significantly affects the product appearance, such as the appearance of light spots or unevenness on the surface, leading to an increase in customer return rates, but also makes the bubble area more prone to damage due to stress concentration, resulting in scratches or wear on the surface of the PS board, reducing the product yield and increasing after-sales costs. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a coating device for the production of tempered PS sheets, which reduces the generation of air bubbles during the coating process, improves the protection of the PS sheet surface, and reduces the return rate.

[0005] To solve the above-mentioned technical problems, the present invention provides a coating device for the production of tempered PS sheets, comprising: a blower box having a transmission cavity, a transmission mechanism mounted on both sides of the blower box, a support frame mounted on both sides of one of the transmission mechanisms, a film roller drive mechanism mounted between the top and bottom of the support frame, a flattening mechanism with a pressing function mounted above and below one of the transmission mechanisms, and a coating mechanism mounted on one of the transmission mechanisms, wherein the coating mechanism and the flattening mechanism are mounted on the same transmission mechanism.

[0006] The flattening mechanism includes symmetrically arranged swing arms. One end of each swing arm is rotatably connected to a rotating shaft, and the other ends of the swing arms are rotatably connected to a flattening roller. The surface of the flattening roller is symmetrically provided with spiral grooves. Telescopic rod assemblies that drive the swing arms to swing are respectively installed on the swing arms. When the telescopic rod assemblies extend, the flattening roller moves toward the film roller driving mechanism.

[0007] The bottom of the inner side of the support frame is connected to a fixed seat, the fixed seat is connected to the lower rotating shaft, and the upper rotating shaft is connected to the support frame.

[0008] By adopting the above technical solution, the air blowing box cools and removes dust from the conveyed sheet material, avoiding the impact of temperature changes or dust on the lamination quality and improving the tightness of the adhesion between the film and the sheet material. The film roller drive mechanism drives the film roll to rotate, realizing the unwinding and conveying of the film, and precisely controlling the unwinding speed and tension of the film to prevent the film from loosening or breaking. During the unwinding of the protective film, the telescopic rod assembly drives the swing arm to swing, allowing the flattening roller to flexibly adjust its position and apply pressure to the protective film. During the unwinding of the protective film, the flattening roller rotates, and through the action of its surface spiral grooves, the concentrated tension in the middle area of ​​the film material is converted into a lateral force, eliminating the middle wrinkles and ensuring that the film and the sheet material are tightly bonded. At the same time, the lamination mechanism bonds the film to the PS sheet, completing the lamination process.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the film roller drive mechanism includes symmetrically arranged splined sleeves, a roller with a protective film is assembled between the splined sleeves, and the splined shafts at both ends of the roller are respectively assembled in the corresponding splined sleeves. The opposite ends of the splined sleeves are respectively provided with clearance notches, and the opposite ends are respectively connected to bearing seats mounted on the support frame. It also includes a mounting plate connected to one side of the support frame and an L-shaped mounting frame on the other side. A servo motor is mounted on the side of the mounting plate away from the bearing seat. The output shaft of the servo motor is connected to the splined sleeve. The top of the L-shaped mounting frame is symmetrically mounted with guide rails. Slider blocks are slidably connected to the guide rails. The sliders are respectively connected to the bottom of the bearing seats. An electric push rod is mounted on the top of the L-shaped mounting frame. The extended end of the electric push rod is connected to the bearing seat.

[0010] By adopting the above technical solution, the spline sleeve provides support and power transmission for the roller, and the rotation speed of the roller is driven by a servo motor to achieve continuous conveying of the protective film, meeting the operational requirements of spreading and bonding the protective film during the production process. The clearance notch provides space for the installation and disassembly of the roller, avoiding interference between the roller and the spline sleeve during installation or disassembly. At the same time, the L-shaped mounting bracket provides an installation platform for components such as the guide rail, slider, bearing seat, and electric push rod. The movement distance of the bearing seat is driven by the electric push rod to achieve rapid adjustment of the roller position, thereby adjusting the distance between the two spline sleeves and realizing the movement of the bearing seat and spline sleeve, thus facilitating the installation and disassembly of the roller. During this process, the guide rail guides the movement direction of the slider, ensuring the stability and straightness of the slider during movement, reducing movement errors, and improving the operating accuracy of the equipment.

[0011] In a preferred embodiment, the present invention can be further configured such that the transmission mechanism includes a frame, and a plurality of electric rollers are installed at intervals on the top of the frame.

[0012] By adopting the above technical solution, the frame provides a stable support platform for the entire transmission mechanism, ensuring that components such as electric rollers can be stably installed on it and withstand various loads generated from the electric rollers, the transmitted materials, and the operation of the equipment. Furthermore, the electric rollers drive the materials placed on them to move forward through their own rotational motion, thereby achieving continuous material transmission.

[0013] In a preferred embodiment, the present invention can be further configured as follows: the coating mechanism includes a U-shaped connecting plate symmetrically arranged on the top of the transmission mechanism and coating heating rollers symmetrically arranged vertically. The coating heating rollers are respectively located between two electric rollers, and a clearance gap is formed between the coating heating rollers and the two adjacent electric rollers. The top of the lower coating heating roller is on the same plane as the top of the electric roller. Sliding grooves are respectively opened on both sides of the inner wall of the U-shaped connecting plate, and a slide block is slidably connected between the sliding grooves. The invention also includes a second servo motor mounted on the frame and the U-shaped connecting plate. The output shaft of the second servo motor is connected to the coating heating roller. The top of the U-shaped connecting plate is respectively connected to a second mounting plate, and the top of the second mounting plate is respectively connected to an electric cylinder. The extended end of the electric cylinder is respectively connected to the slide block.

[0014] By adopting the above technical solution, the U-shaped connecting plate provides an installation position for the coating heating roller and other related components. The servo motor drives the coating heating roller to rotate and heat, tightly adhering the protective film to the object to be coated, thus realizing the coating process. This ensures the flatness and adhesion strength of the coating, reduces defects such as bubbles and wrinkles, and improves the quality of the coated products. Furthermore, since the coating heating rollers are located between two of the electric rollers, the coating operation can be closely integrated with the conveying process of the transport mechanism, allowing the protective film to smoothly enter the coating area for coating during the transport process, achieving continuity of the production process. At the same time, the electric cylinder provides power for the up-and-down movement of the slide. Through the extension and retraction of the electric cylinder, the slide is driven to slide in the sliding groove, thereby achieving precise adjustment of the distance between the upper and lower coating heating rollers. This automatically adjusts the distance between the coating heating rollers, improving production efficiency and product quality.

[0015] In a preferred embodiment, the present invention can be further configured as follows: the blowing box includes a box body, a plurality of guide rollers are connected at intervals within the transmission cavity of the box body, the top of the guide rollers is on the same plane as the top of the electric roller, a plurality of inclined high-pressure gas nozzles are respectively connected to the top and bottom of the transmission cavity of the box body, a high-pressure air pump is provided inside the box body, the blowing end of the high-pressure air pump is connected to the corresponding high-pressure gas nozzle through a split pipe, and the high-pressure gas nozzles are respectively inclined in the opposite direction to the direction in which the PS board is to be moved.

[0016] By adopting the above technical solution, a dedicated transmission cavity is formed inside the box, providing a stable and independent environment for the transmission of PS boards during the lamination process. This avoids external interference affecting the transmission and lamination quality of the PS boards. The guide rollers inside the transmission cavity ensure that the PS boards can move along a predetermined path. When transmitting the tempered PS boards, a high-pressure air pump provides high-pressure gas to the high-pressure gas nozzles to clean the surface of the PS boards, removing dust, impurities, and other contaminants, ensuring the cleanliness of the PS board surface, and improving the adhesion strength between the protective film and the PS board. At the same time, because the high-pressure gas nozzles are tilted in the opposite direction to the direction in which the PS boards are to move, the high-pressure gas can better impact the surface of the PS boards, blowing away dust and impurities, thus improving cleaning efficiency and quality.

[0017] In a preferred embodiment, the present invention can be further configured such that the high-pressure gas nozzles are distributed in an arc-shaped array, with the protruding ends of the high-pressure gas nozzles in the arc-shaped array positioned in the opposite direction to the direction in which the PS plate is to be moved.

[0018] By adopting the above technical solution, the high-pressure gas nozzles distributed in an arc array can blow the PS board surface from multiple angles. Compared with straight arrangement or other simple distribution methods, the arc arrangement can cover more areas of the PS board surface, especially the edges and corners where dust or impurities are easy to accumulate, effectively reducing cleaning dead corners and ensuring that the PS board surface is thoroughly cleaned.

[0019] In a preferred embodiment, the present invention can be further configured as follows: the telescopic rod assembly includes a hinge seat connected to the support frame and an electric push rod II, one end of the electric push rod II being connected to the hinge seat via a pin, and the extended end of the electric push rod II being connected to a U-shaped block via a pin, the U-shaped block being mounted on the swing arm.

[0020] By adopting the above technical solution, the hinge seat provides a stable mounting point for the electric push rod 2, firmly connecting it to the support frame. This ensures that the electric push rod 2 will not loosen or shift during operation, laying the foundation for the stable operation of the entire telescopic rod assembly. Furthermore, the hinge seat allows the electric push rod 2 to rotate around the pin shaft at a certain angle, enabling it to adapt to the movement requirements of the swing arm at different positions and angles. By controlling the extension and retraction of the electric push rod 2, the position and angle of the swing arm can be precisely adjusted, thereby adjusting the swing angle of the flattening roller to apply pressure to the protective film to meet the requirements of different production processes.

[0021] In summary, this utility model includes at least one of the following beneficial technical effects of a coating device for tempered PS sheet production:

[0022] 1. The swing arm is driven by the telescopic rod assembly to swing, so that the flattening roller can flexibly adjust its position and apply pressure to the protective film. During the unwinding of the protective film, the flattening roller will rotate, and through the action of the spiral groove on its surface, the concentrated tension in the middle area of ​​the film material is converted into a lateral force, eliminating the middle wrinkles and ensuring that the film and the board are tightly bonded.

[0023] 2. The blower box uses a high-pressure air pump to drive tilted and arc-shaped array of high-pressure gas nozzles, which blow from multiple angles in the opposite direction of the PS board. This can remove dust, impurities and other contaminants from the surface of the PS board in an all-round and thorough manner, providing a clean and flat substrate for the subsequent lamination process, so that the protective film can better adhere to the PS board. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the flattening mechanism of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the film roller drive mechanism of this utility model;

[0028] Figure 4 This is a schematic diagram of the coating mechanism of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the blower box of this utility model.

[0030] In the diagram: 10. Air blower housing; 20. Conveying mechanism; 3. Support frame; 40. Film roller drive mechanism; 50. Flattening mechanism; 60. Coating mechanism; 7. Fixing base;

[0031] 11. Housing; 12. Guide roller; 13. High-pressure gas nozzle; 14. High-pressure air pump;

[0032] 21. Frame; 22. Electric roller;

[0033] 41. Splined sleeve; 42. Roller; 43. Clearance notch; 44. Bearing housing; 45. Mounting plate one; 46. L-shaped mounting bracket; 47. Servo motor one; 48. Guide rail; 49. Slider; 4a. Electric push rod one;

[0034] 51. Swing arm; 52. Rotating shaft; 53. Flattening roller; 54. Spiral groove; 55. Telescopic rod assembly;

[0035] 61. U-shaped connecting plate; 62. Film-coating heating roller; 63. Sliding groove; 64. Slide block; 65. Mounting plate two; 66. Electric cylinder; 67. Servo motor two;

[0036] 551. Hinge seat; 552. Electric push rod II; 553. U-shaped block. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] Reference Figure 1-5This utility model discloses a laminating device for producing tempered PS sheets, comprising: a blower box 10 with a transmission cavity; transmission mechanisms 20 mounted on both sides of the blower box 10; support frames 3 mounted on both sides of one of the transmission mechanisms 20; film roller drive mechanisms 40 mounted between the top and bottom of the support frames 3; flattening mechanisms 50 with pressing functions mounted above and below one of the transmission mechanisms 20; and a laminating mechanism 60 mounted on one of the transmission mechanisms 20. The laminating mechanism 60 and the flattening mechanism 50 are mounted on the same transmission mechanism 20. The transmission mechanism 20 includes a frame 21, with a plurality of electric rollers 22 spaced apart on the top of the frame 21. The flattening mechanism 50 includes symmetrically arranged swing arms 51. One end of each arm 51 is rotatably connected to a rotating shaft 52, and the other end of each arm 51 is rotatably connected to a flattening roller 53. The surface of the flattening roller 53 is symmetrically provided with spiral grooves 54. Each arm 51 is equipped with a telescopic rod assembly 55 that drives its swing. When the telescopic rod assembly 55 extends, the flattening roller 53 moves toward the film roller drive mechanism 40. The telescopic rod assembly 55 includes a hinge seat 551 connected to the support frame 3 and an electric push rod 552. One end of the electric push rod 552 is connected to the hinge seat 551 through a pin. The extended end of the electric push rod 552 is connected to a U-shaped block 553 through a pin. The U-shaped block 553 is installed on the arm 51. The bottom of the inner side of the support frame 3 is connected to a fixed seat 7. The fixed seat 7 is connected to the rotating shaft 52 below, and the rotating shaft 52 above is connected to the support frame 3.

[0040] Furthermore, the electric roller 22 is the Fast FST-D50 model. The air box 10 cools and removes dust from the PS sheet during transport through its transmission chamber, effectively preventing sheet deformation or film shrinkage caused by temperature changes, thus ensuring the flatness of the coating. The dust removal function removes dust and impurities from the sheet surface, preventing these contaminants from affecting the bonding effect between the film and the sheet, thereby improving the tightness of the bonding between the film and the sheet. The film roller drive mechanism 40 drives the film roll to rotate, realizing the unwinding and conveying of the film, and precisely controlling the unwinding speed and tension of the film to ensure that the film remains stable during the unwinding process and avoids loosening. In the event of slackening or breakage, during the unwinding of the protective film, the telescopic rod assembly 55 drives the swing arm 51 to swing, allowing the flattening roller 53 to flexibly adjust its position to adapt to different thicknesses and materials of the sheet and film, and apply appropriate pressure to the protective film to ensure that the film remains flat during unwinding. At the same time, during the rotation of the flattening roller 53, the spiral groove 54 on its surface converts the concentrated tension in the middle area of ​​the film into a lateral component force, thereby effectively eliminating wrinkles in the middle of the film and ensuring that the film and the sheet are tightly bonded, further improving the film coating quality. Finally, the film coating mechanism 60 is responsible for bonding the film to the PS sheet to complete the film coating process.

[0041] The membrane roller drive mechanism 40 includes symmetrically arranged splined sleeves 41, with a roller 42 carrying a protective film assembled between the splined sleeves 41. The splined shafts at both ends of the roller 42 are respectively assembled into the corresponding splined sleeves 41. Each splined sleeve 41 has a clearance notch 43 at one end facing each other, and the opposite ends are connected to bearing seats 44 mounted on a support frame 3. It also includes a mounting plate 45 connected to one side of the support frame 3, and an L-shaped mounting bracket 46 on the other side. A servo motor 47 is mounted on the side of the mounting plate 45 away from the bearing seat 44. The output shaft of the servo motor 47 is connected to the splined sleeves 41. Guide rails 48 are symmetrically mounted on the top of the L-shaped mounting bracket 46, and sliders 49 are slidably connected to the guide rails 48. The sliders 49 are respectively connected to the bottom of the bearing seats 44. An electric push rod 4a is mounted on the top of the L-shaped mounting bracket 46, and the extended end of the electric push rod 4a is connected to the bearing seat 44.

[0042] Furthermore, the splined sleeve 41 and the splined shafts at both ends of the roller 42 cooperate to ensure that the power output by the servo motor 47 can be accurately transmitted to the roller 42, thereby driving the roller 42 to run at a suitable rotation speed, achieving continuous and stable conveying of the protective film. The clearance notch 43 provides ample space for the installation and disassembly of the roller 42, effectively avoiding interference between the roller 42 and the splined sleeve 41 during installation or disassembly, facilitating the maintenance and replacement of the roller 42. At the same time, the telescopic movement of the electric push rod 4a can accurately drive the bearing seat 44 to move on the guide rail 48, thereby achieving rapid adjustment of the position of the roller 42. This not only facilitates the adjustment of the distance between the two splined sleeves 41 to adapt to the installation requirements of rollers 42 of different specifications, but also facilitates the installation and disassembly of the roller 42, further improving the flexibility and applicability of the equipment.

[0043] The coating mechanism 60 includes a U-shaped connecting plate 61 symmetrically arranged on the top of the transmission mechanism 20 and coating heating rollers 62 symmetrically arranged vertically. The coating heating rollers 62 are respectively located between two electric rollers 22, and a clearance gap is formed between the coating heating rollers 62 and the two adjacent electric rollers 22. The top of the lower coating heating roller 62 is on the same plane as the top of the electric roller 22. Sliding grooves 63 are respectively opened on both sides of the inner wall of the U-shaped connecting plate 61, and a slide seat 64 is slidably connected between the sliding grooves 63. It also includes a second servo motor 67 mounted on the frame 21 and the U-shaped connecting plate 61. The output shaft of the second servo motor 67 is connected to the coating heating roller 62. The top of the U-shaped connecting plate 61 is respectively connected to a second mounting plate 65, and the top of the second mounting plate 65 is respectively connected to an electric cylinder 66. The extended end of the electric cylinder 66 is respectively connected to the slide seat 64.

[0044] The servo motor 67 drives the coating heating roller 62 to rotate and heat, tightly adhering the protective film to the object to be coated, thus realizing the coating process. Since the coating heating roller 62 is located between two of the electric rollers 22, the coating operation can be closely integrated with the conveying process of the conveying mechanism 20, allowing the protective film to smoothly enter the coating area for coating during the conveying process, thus achieving the continuity of the production process. At the same time, the electric cylinder 66 provides power for the up and down movement of the slide 64. Through the extension and retraction movement of the electric cylinder 66, the slide 64 is driven to slide in the sliding groove 63, thereby realizing the precise adjustment of the distance between the upper and lower coating heating rollers 62.

[0045] The blower housing 10 includes a housing 11. Several guide rollers 12 are connected at intervals inside the transmission cavity of the housing 11. The top of the guide rollers 12 is on the same plane as the top of the electric roller 22. Several inclined high-pressure gas nozzles 13 are connected to the top and bottom of the transmission cavity of the housing 11. A high-pressure air pump 14 is provided inside the housing 11. The blowing end of the high-pressure air pump 14 is connected to the corresponding high-pressure gas nozzle 13 through a split pipe. The high-pressure gas nozzles 13 are inclined in the opposite direction to the direction in which the PS plate is to be moved. The high-pressure gas nozzles 13 are distributed in an arc array. The protruding ends of the arc array high-pressure gas nozzles 13 are arranged in the opposite direction to the direction in which the PS plate is to be moved.

[0046] Furthermore, the housing 11 constructs a semi-enclosed space, and guides the PS board to move within the transmission cavity of the blowing housing 10 through the guide roller 12 in conjunction with the electric roller 22. The high-pressure air pump 14 distributes the output high-pressure gas evenly to each high-pressure gas nozzle 13 through the diversion pipe, cleaning the surface of the PS board during its movement, removing dust, impurities, and other contaminants, ensuring the cleanliness of the PS board surface, and improving the adhesion strength between the protective film and the PS board. At the same time, since the high-pressure gas nozzles 13 are tilted in the opposite direction to the direction the PS board is to move, the high-pressure gas can better impact the surface of the PS board, blowing away dust and impurities, improving cleaning efficiency and quality. The arc-shaped array of high-pressure gas nozzles 13 can sweep the surface of the PS board from multiple angles. Compared with straight-line arrangement or other simple distribution methods, the arc arrangement can cover more areas of the PS board surface, especially edges and corners where dust or impurities are prone to accumulate, effectively reducing cleaning dead corners and ensuring that the surface of the PS board is thoroughly cleaned.

[0047] The implementation principle of this embodiment is as follows: During use, the cured tempered PS board is conveyed by the electric roller 22, and the high-pressure air pump 14 delivers high-pressure gas to each high-pressure gas nozzle 13 through the diversion pipe to blow and clean the surface of the PS board that has passed through the air box 10, blowing away dust and impurities from the surface of the PS board to improve the bonding strength between the protective film and the PS board. Subsequently, the flattening mechanism 50 flattens the PS board through the cooperation of the electric push rod 552 and the flattening roller 53. When the PS board passes through the flattening mechanism 50, the flattening roller 53 applies a certain pressure to the PS board, and the spiral groove 54 flattens the wrinkles or bends on the surface of the PS board, keeping the PS board in a flat state, providing good conditions for the subsequent lamination process. The flattened PS board enters the lamination mechanism 60, where the lamination heating rollers 62, which are symmetrically arranged above and below, heat and squeeze the PS board and the protective film, so that the protective film is tightly attached to the surface of the PS board to ensure the quality and consistency of the lamination.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A laminating device for producing tempered PS sheets, characterized in that, include: A blower box (10) with a transmission cavity is provided. A transmission mechanism (20) is mounted on both sides of the blower box (10). A support frame (3) is provided on both sides of one of the transmission mechanisms (20). A film roller drive mechanism (40) is installed between the top and the bottom of the support frame (3). A flattening mechanism (50) with a pressing function is installed above and below one of the transmission mechanisms (20). A film covering mechanism (60) is installed on one of the transmission mechanisms (20). The film covering mechanism (60) and the flattening mechanism (50) are respectively mounted on the same transmission mechanism (20). The flattening mechanism (50) includes symmetrically arranged swing arms (51), one end of each swing arm (51) is rotatably connected to a rotating shaft (52), and the other ends of each swing arm (51) are rotatably connected to a flattening roller (53). The surface of the flattening roller (53) is symmetrically provided with spiral grooves (54). Each swing arm (51) is equipped with a telescopic rod assembly (55) that drives it to swing. When the telescopic rod assembly (55) extends, the flattening roller (53) moves toward the film roller driving mechanism (40). The bottom of the inner side of the support frame (3) is connected to a fixed seat (7), the fixed seat (7) is connected to the lower rotating shaft (52), and the upper rotating shaft (52) is connected to the support frame (3).

2. The coating device for producing tempered PS sheets according to claim 1, characterized in that, The membrane roller drive mechanism (40) includes symmetrically arranged splined sleeves (41), with a roller (42) with a protective film assembled between the splined sleeves (41). The splined shafts at both ends of the roller (42) are respectively assembled in the corresponding splined sleeves (41). The opposite ends of the splined sleeves (41) are respectively provided with clearance notches (43), and the opposite ends are respectively connected to bearing seats (44) mounted on the support frame (3). It also includes a mounting plate (45) connected to one side of the support frame (3) and an L-shaped mounting bracket (46) on the other side. A servo motor (47) is mounted on the side of the mounting plate (45) away from the bearing seat (44). The output shaft of the servo motor (47) is connected to the spline sleeve (41). Guide rails (48) are symmetrically mounted on the top of the L-shaped mounting bracket (46). Slider blocks (49) are slidably connected on the guide rails (48). The sliders (49) are connected to the bottom of the bearing seat (44). An electric push rod (4a) is mounted on the top of the L-shaped mounting bracket (46). The extended end of the electric push rod (4a) is connected to the bearing seat (44).

3. The coating device for producing tempered PS sheets according to claim 1, characterized in that, The transmission mechanism (20) includes a frame (21), and a plurality of electric rollers (22) are installed at intervals on the top of the frame (21).

4. The coating device for producing tempered PS sheets according to claim 3, characterized in that, The coating mechanism (60) includes a U-shaped connecting plate (61) symmetrically arranged on the top of the conveying mechanism (20) and coating heating rollers (62) symmetrically arranged vertically. The coating heating rollers (62) are respectively located between two electric rollers (22), and a clearance gap is formed between the coating heating rollers (62) and the two adjacent electric rollers (22). The top of the lower coating heating roller (62) is on the same plane as the top of the electric roller (22). The inner walls of the U-shaped connecting plate (61) are respectively opened on both sides. The system includes sliding grooves (63), with sliding blocks (64) slidably connected between the sliding grooves (63). It also includes a second servo motor (67) mounted on the frame (21) and the U-shaped connecting plate (61). The output shaft of the second servo motor (67) is connected to the film heating roller (62). The top of the U-shaped connecting plate (61) is connected to a second mounting plate (65), and the top of the second mounting plate (65) is connected to an electric cylinder (66). The extended end of the electric cylinder (66) is connected to the sliding block (64).

5. A coating device for producing tempered PS sheets according to claim 3, characterized in that, The blowing box (10) includes a box (11). Several guide rollers (12) are connected at intervals in the transmission cavity of the box (11). The top of the guide rollers (12) is on the same plane as the top of the electric roller (22). Several inclined high-pressure gas nozzles (13) are connected to the top and bottom of the transmission cavity of the box (11). A high-pressure air pump (14) is provided in the box (11). The blowing end of the high-pressure air pump (14) is connected to the corresponding high-pressure gas nozzle (13) through a split pipe. The high-pressure gas nozzles (13) are inclined in the opposite direction to the direction in which the PS board is to be moved.

6. A coating device for producing tempered PS sheets according to claim 5, characterized in that, The high-pressure gas nozzles (13) are arranged in an arc-shaped array, with the protruding ends of the high-pressure gas nozzles (13) in the arc-shaped array facing the opposite direction to the direction in which the PS plate is to move.

7. A coating device for producing tempered PS sheets according to claim 1, characterized in that, The telescopic rod assembly (55) includes a hinge seat (551) and an electric push rod two (552) connected to the support frame (3). One end of the electric push rod two (552) is connected to the hinge seat (551) by a pin. The extended end of the electric push rod two (552) is connected to a U-shaped block (553) by a pin. The U-shaped block (553) is mounted on the swing arm (51).

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