Continuous casting molding device for PMMA (Polymethyl Methacrylate) functional plate and manufacturing method of continuous casting molding device

By designing a continuous casting forming device in the processing of PMMA functional plates, water injection pipes and drainage pipes are used to achieve water circulation cooling, which solves the problem of difficulty in recycling pure water and poor molding accuracy, and improves the performance and molding accuracy of the plate.

CN119261258APending Publication Date: 2025-01-07TAIXING TOMSON ACRYLIC CO LTD
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Patent Information

Application Number
CN202411323597.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-01-07

AI Technical Summary

Technical Problem

In the existing PMMA functional board processing technology, pure water is difficult to recycle and reuse during material cooling, and the molding accuracy is not easy to control, which leads to yellowing problems due to secondary heating.

Method used

A continuous casting and forming device for PMMA functional plates is designed, using water injection pipes to inject cooling water into the steel belt cavity, and the water circulation cooling is achieved through the communication pipe and drain pipe to avoid water contact with the outside world, and the steel belt clamping is controlled through the motor screw. The roller adjusts the material thickness to ensure molding accuracy.

Benefits of technology

It realizes the recycling and efficient cooling of pure water, avoids water pollution, and improves molding accuracy and board performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a PMMA (polymethyl methacrylate) functional plate continuous casting forming device and a manufacturing method thereof, and relates to the technical field of PMMA functional plate processing. An upper driving roller is distributed on the right side of the injection part upper tensioning roller in parallel. The steel belt assembly is arranged on the outer walls of the lower driving roller and the injection part lower tensioning roller and the outer walls of the upper driving roller and the injection part upper tensioning roller. According to the PMMA functional board continuous casting forming device and the manufacturing method thereof, the water injection pipe injects pure water into the cavities of the steel belt body, the pure water flows in the cavities and absorbs heat, the pure water after heat absorption reaches the heat exchanger along the drainage pipe for heat exchange, and the pure water after heat exchange enters the cavities along the water injection pipe again for circulation operation. In the process, the pure water is not in contact with the outside, so that the pure water is always pure and convenient to recycle, and the pure water can be quickly recycled after being cooled, without being filtered and only needing to be subjected to heat exchange.
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Description

Technical Field

[0001] The invention relates to the technical field of PMMA functional board processing, in particular to a PMMA functional board continuous casting molding device and a manufacturing method thereof. Background Art

[0002] As a method for continuously producing plate-shaped polymers using methyl methacrylate as the main raw material, there is a continuous extrusion plate production method using a screw extruder in combination with a three-roll calender and subsequent production lines, and there is a continuous casting organic glass plate production method using prepolymers in combination with an endless belt type continuous plate making device. The former method uses organic glass pellets that are melted by a screw extruder and then extruded into a three-roll calender. The secondary heating is prone to yellowing, and the precision of the extruded plate formed by the three-roll calender is difficult to control during the subsequent cooling process. The performance of the plate produced by this process depends on the organic glass pellets; the latter method uses prepolymers from one end to the other to form a continuous casting organic glass plate. The material is injected between two relatively opposite circular conveyor belts located above and below and running at the same speed in the horizontal direction. Since the polymerization rate of the prepolymer is limited, it needs to continue the polymerization treatment by heating and other methods while entering the circular moving conveyor belt. Finally, a plate-shaped polymer is obtained from the other end, and its thickness is adjusted by the gap between the two circular conveyor belts. The difficulty of this method is that it is necessary to solve the polymerization problem of the material in the circular conveyor belt. However, compared with the previous method, this method does not involve secondary heating of the material. At the same time, it is always between the two circular conveyor belts during the molding and cooling process, with higher precision and better performance of the plate produced by this method than the previous method.

[0003] In the existing method of cooling the material, pure water is directly sprayed on the steel belt through the spray system. The steel belt acts as a heat conductor to conduct the heat of the material and cool it down through the pure water. However, the water sprayed by the spray system will come into contact with the outside world, making it difficult to recycle and reuse the water. At the same time, it is also difficult to recycle and reuse the water because it contains impurities.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a PMMA functional board continuous casting molding device and a manufacturing method thereof are proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a PMMA functional board continuous casting molding device and a manufacturing method thereof, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a PMMA functional board continuous casting molding device, comprising an upper tensioning roller and a steel belt assembly on an injection part, an upper driving roller is distributed in parallel on the right side of the upper tensioning roller on the injection part, and a lower driving roller is arranged below the upper driving roller, and a lower tensioning roller of the injection part is arranged in parallel on the left side of the lower driving roller, the steel belt assembly is arranged on the outer walls of the lower driving roller and the lower tensioning roller of the injection part and the upper driving roller and the outer walls of the upper tensioning roller of the injection part, the steel belt assembly comprises a steel belt body, a cavity, a connecting pipe, a first corrugated pipe, a water injection pipe, a second corrugated pipe and a drainage pipe, a cavity is opened inside the steel belt body, and the steel belt bodies are connected through the connecting pipe at the bottom, one side of the bottom of the steel belt body is connected to the first corrugated pipe, and the bottom end of the first corrugated pipe is connected to the water injection pipe through a bearing, the other side of the bottom of the steel belt body is connected to the second corrugated pipe, and the bottom of the second corrugated pipe is connected to the drainage pipe through a bearing.

[0007] Furthermore, one end of the upper tensioning roller of the injection part and the lower tensioning roller of the injection part are both connected to a guide rail electric cylinder, the inner side surface of the steel belt body is provided with a steel belt clamping roller, and the end of the steel belt clamping roller is provided with a motor screw.

[0008] Furthermore, the second bellows and the first bellows are both sheathed with return springs, and the end of the drain pipe is connected to a heat exchanger.

[0009] Furthermore, an extruder is arranged on the left side of the tensioning roller on the injection portion, and a transition conveying roller is arranged on the right side of the lower driving roller.

[0010] Furthermore, a coating transfer device is arranged on the right side of the transition conveying roller, and the coating transfer device includes a functional coating mixing device, an upper coating roller and a lower coating roller, and an upper coating roller and a lower coating roller are arranged below the functional coating mixing device.

[0011] Furthermore, the coating transfer device also includes a tensioning roller, and tensioning rollers are arranged on the sides of the upper coating roller and the lower coating roller.

[0012] Furthermore, the coating transfer device also includes a PET film, and the surface of the tensioning roller is provided with the PET film.

[0013] Furthermore, the coating transfer device also includes a pinch roller and a sodium lamp. The inner side of the PET film is provided with a pinch roller, and the sodium lamp is provided between the pinch rollers.

[0014] Furthermore, a UV curing device is arranged on the right side of the coating transfer device, and the UV curing device includes a frame, conveying rollers and a UV curing lamp. Conveying rollers are arranged equidistantly on the surface of the frame, and the UV curing lamps are arranged symmetrically between the conveying rollers.

[0015] A manufacturing method, which uses the above-mentioned PMMA functional board continuous casting molding device, the manufacturing method comprises the following steps:

[0016] Step 1: The extruder provides a molten PMMA material with a polymerization rate of 100%. After being extruded, the material reaches the surface of the steel belt body outside the tensioning roller under the injection part. The material is transmitted along the steel belt body, and the steel belt pinch roller is driven up and down by the motor screw to control the distance between the steel belt bodies to adjust the thickness of the material during molding;

[0017] Step 2: When the material passes through the steel belt body, the water injection pipe injects pure water for cooling into the first corrugated pipe, and the pure water enters the cavity of the steel belt body and flows along the inside of each cavity through the connecting pipe. During the flow of pure water, the steel belt body acts as a heat absorber to cool the material;

[0018] Step 3: When each cavity is filled with pure water to cool the material and form it, the pure water after absorbing heat flows out along the second bellows and can reach the heat exchanger through the drain pipe for heat exchange. The pure water after heat exchange re-enters the cavity along the water injection pipe for circulation operation;

[0019] Step 4: After the material is cooled and formed into a plate shape, the plate is sent to the coating transfer device through the transition conveyor roller. The functional coating preparation device is used to store the prepared functional coating to be used, and send the coating to the surface of the upper coating roller and the lower coating roller through the pipeline. The upper coating roller and the lower coating roller are composed of two adjacent silicone rollers that rotate synchronously in different directions. The first function is to drive the PET film on one of the rollers to operate; the second function is to make the functional coating flowing between the two rollers be evenly coated on the PET film. When the PET film is running, the coating is transferred to the surface of the plate, and the functional coating transferred to the surface of the plate is initially cured through the PET film by the sodium lamp;

[0020] Step 5: The transferred sheet is sent to the surface of the conveyor roller through the transition conveyor roller between the coating transfer device and the UV curing device for further transmission, and the coating on the surface of the sheet is further cured by the UV curing lamp during the transmission process.

[0021] The present invention provides a PMMA functional board continuous casting molding device and a manufacturing method thereof, which has the following beneficial effects:

[0022] 1. The PMMA functional board continuous casting molding device and its manufacturing method, the water injection pipe injects pure water into the cavity of the steel belt body, the pure water flows in each cavity and absorbs heat, the pure water after absorbing heat reaches the heat exchanger along the drainage pipe for heat exchange, and the pure water after heat exchange re-enters the cavity along the water injection pipe for circulation operation. During the above process, the pure water does not contact the outside world, resulting in the pure water being always pure and easy to recycle, so that the pure water does not need to be filtered after cooling, and can be quickly recycled after heat exchange.

[0023] 2. The PMMA functional board continuous casting molding device and its manufacturing method, the first bellows and the second bellows will gradually stretch with the circular movement of the steel belt body, and gradually shrink under the action of the external spring after reaching the farthest point, and repeat the cycle, so that the first bellows and the second bellows are always adapted to the running steel belt body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a PMMA functional board continuous casting molding device of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a steel belt assembly of a PMMA functional board continuous casting molding device of the present invention;

[0026] Figure 3 This is a schematic diagram of the first bellows structure of a PMMA functional board continuous casting molding device of the present invention;

[0027] Figure 4 This is a schematic diagram of the second bellows structure of a PMMA functional board continuous casting molding device of the present invention;

[0028] Figure 5 This is a structural schematic diagram of a functional coating preparation device of a PMMA functional board continuous casting molding device of the present invention;

[0029] Figure 6 The present invention is a schematic diagram of the structure of a UV curing device of a PMMA functional board continuous casting molding device.

[0030] In the figure: 1. tensioning roller on the injection part; 2. upper driving roller; 3. lower driving roller; 4. tensioning roller on the injection part; 5. steel belt assembly; 501. steel belt body; 502. cavity; 503. connecting pipe; 504. first bellows; 505. water injection pipe; 506. second bellows; 507. drainage pipe; 6. steel belt pinching roller; 7. extruder; 8. transition conveying roller; 9. coating transfer device; 901. functional coating mixing device; 902. upper coating roller; 903. lower coating roller; 904. tensioning roller; 905. PET film; 906. pinching roller; 907. sodium lamp; 10. UV curing device; 1001. frame; 1002. conveying roller; 1003. UV curing lamp. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] like Figure 1-Figure 6As shown, the present invention provides a technical solution: a PMMA functional board continuous casting molding device, comprising an upper tensioning roller 1 of an injection part and a steel belt assembly 5, an upper driving roller 2 is distributed in parallel on the right side of the upper tensioning roller 1 of the injection part, and a lower driving roller 3 is arranged below the upper driving roller 2, and a lower tensioning roller 4 of the injection part is arranged in parallel on the left side of the lower driving roller 3, the steel belt assembly 5 is arranged on the outer walls of the lower driving roller 3 and the lower tensioning roller 4 of the injection part and the upper driving roller 2 and the outer walls of the upper tensioning roller 1 of the injection part, the steel belt assembly 5 comprises a steel belt body 501, a cavity 502, a connecting pipe 503, a first corrugated pipe 504, a water injection pipe 505, a second corrugated pipe 506 and a drainage pipe 507, a cavity 502 is opened inside the steel belt body 501, and the connecting pipe 503 at the bottom is passed between the steel belt bodies 501. The steel strip body 501 is connected to each other, a first bellows 504 is connected to one side of the bottom of the steel strip body 501, and a water injection pipe 505 is connected to the bottom end of the first bellows 504 through a bearing, a second bellows 506 is connected to the other side of the bottom of the steel strip body 501, and a drainage pipe 507 is connected to the bottom of the second bellows 506 through a bearing, a guide rail electric cylinder is connected to one end of the upper tensioning roller 1 of the injection part and the lower tensioning roller 4 of the injection part, a steel strip clamping roller 6 is arranged on the inner side of the steel strip body 501, and a motor screw is arranged at the end of the steel strip clamping roller 6, a return spring is sleeved on the outside of the second bellows 506 and the first bellows 504, a heat exchanger is connected to the end of the drainage pipe 507, an extruder 7 is arranged on the left side of the upper tensioning roller 1 of the injection part, and a transition conveying roller 8 is arranged on the right side of the lower driving roller 3;

[0033] The specific operation is as follows: the extruder 7 is a twin-screw extruder, which is used to provide a molten PMMA material with a polymerization rate of 100%. After being extruded, the material reaches the surface of the steel belt body 501 outside the lower tensioning roller 4 of the injection part, and the material is transmitted along with the steel belt body 501. The steel belt clamping roller 6 is driven by the motor screw to rise and fall to control the spacing between the steel belt bodies 501 to adjust the thickness of the material during molding, and the parallel distribution between the steel belt bodies 501 is used to ensure the flatness of the material after molding. On the two side edges of the upper and lower steel belt bodies 501, a sealing strip is clamped to form an annular surrounding space. After the material enters, it is pressed by the steel belt and transported forward for cooling and molding. Among them, the lower tensioning roller 4 of the injection part and the upper tensioning roller 1 of the injection part are equipped with linear guides and electric cylinders, which are respectively used to tension their respective steel belt bodies 501, and the lower drive roller 3 and the upper drive roller 2 are driven by the motor to drive the steel belt body 501 to perform annular motion;

[0034] When the material passes through the steel belt body 501, the water injection pipe 505 injects cooling pure water into the first corrugated pipe 504, and the pure water enters the cavity 502 of the steel belt body 501 and flows along the inside of each cavity 502 through the connecting pipe 503. During the flow of pure water, the steel belt body 501 is used as a heat absorber to cool the material. When the inside of each cavity 502 is filled with pure water to cool the material, the pure water after absorbing heat flows and is discharged along the second corrugated pipe 506, and can reach the heat exchanger through the drain pipe 507 for heat exchange. The pure water after heat exchange is discharged. The steel strip body 501 is re-entered into the cavity 502 along the water injection pipe 505 for a cyclic operation, and the first bellows 504 and the second bellows 506 are gradually stretched along the circular motion of the steel strip body 501, and gradually contracted under the action of the external spring after reaching the farthest point, and the cycle is repeated. In addition, the steel strip body 501 is equipped with a temperature detection device, which feeds back the surface temperature of the steel strip body 501 to the computer in real time, and the computer adjusts the water injection amount of the water injection pipe 505 to cool the steel strip body 501, thereby ensuring that the material is cooled linearly to ensure the flatness of the plate;

[0035] Based on the above description, compared with the traditional method of using a spray system to spray pure water to cool the steel strip, the present invention injects pure water into the cavity 502 of the steel strip body 501 through the water injection pipe 505, and the pure water flows in each cavity 502 and absorbs heat. The pure water after absorbing heat reaches the heat exchanger along the drainage pipe 507 for heat exchange, and the pure water after heat exchange re-enters the cavity 502 along the water injection pipe 505 for circulation. During the above process, the pure water does not contact the outside world, resulting in the pure water being always pure and easy to recycle, so that the pure water does not need to be filtered after cooling, and can be quickly recycled after heat exchange.

[0036] like Figure 1-Figure 6 As shown, a coating transfer device 9 is arranged on the right side of the transition conveying roller 8, and the coating transfer device 9 includes a functional coating preparation device 901, an upper coating roller 902 and a lower coating roller 903, and the upper coating roller 902 and the lower coating roller 903 are arranged below the functional coating preparation device 901, and the coating transfer device 9 also includes a tensioning roller 904, and the sides of the upper coating roller 902 and the lower coating roller 903 are provided with tensioning rollers 904, and the coating transfer device 9 also includes a PET film 905, and the surface of the tensioning roller 904 is provided with the PET film 905, and the coating transfer device 9 also includes a pinch roller 906 and a sodium lamp 907, and the inner side of the PET film 905 is provided with a pinch roller 906, and a sodium lamp 907 is arranged between the pinch rollers 906;

[0037] The specific operation is as follows: after the material is cooled and formed into a plate shape, the plate is sent to the coating transfer device 9 through the transition conveyor roller 8. The functional coating preparation device 901 is used to store the prepared functional coating that needs to be used, and send the coating to the surface of the upper coating roller 902 and the lower coating roller 903 through a pipeline. The upper coating roller 902 and the lower coating roller 903 are composed of two adjacent silicone rollers that rotate synchronously in opposite directions. The first function is to drive the PET film 905 on one of the rollers to operate; the second function is to make the functional coating that flows between the two rollers be evenly coated on the PET film 905. When the PET film 905 is in operation, the coating is transferred to the surface of the plate, and the functional coating transferred to the surface of the plate is initially cured through the PET film 905 by the sodium lamp 907.

[0038] like Figure 1-Figure 6 As shown, a UV curing device 10 is arranged on the right side of the coating transfer device 9, and the UV curing device 10 includes a frame 1001, a conveying roller 1002 and a UV curing lamp 1003. The conveying rollers 1002 are arranged equidistantly on the surface of the frame 1001, and UV curing lamps 1003 are arranged symmetrically up and down between the conveying rollers 1002;

[0039] The specific operation is as follows: the transferred plate is sent to the surface of the conveying roller 1002 through the transition conveying roller 8 between the coating transfer device 9 and the UV curing device 10 for further transmission, and the coating on the surface of the plate is enhanced and cured by the UV curing lamp 1003 during the transmission process.

[0040] In summary, a manufacturing method is provided, which uses the above-mentioned PMMA functional board continuous casting molding device, and the manufacturing method comprises the following steps:

[0041] Step 1: The extruder 7 provides a molten PMMA material with a polymerization rate of 100%. After being extruded, the material reaches the surface of the steel belt body 501 outside the tensioning roller 4 under the injection part. The material is transported along the steel belt body 501, and the steel belt pinch roller 6 is driven by the motor screw to rise and fall to control the distance between the steel belt bodies 501, so as to adjust the thickness of the material during molding;

[0042] Step 2: When the material passes through the steel belt body 501, the water injection pipe 505 injects pure water for cooling into the first corrugated pipe 504, and the pure water enters the cavity 502 of the steel belt body 501 and flows along the inside of each cavity 502 through the connecting pipe 503. During the flow of pure water, the steel belt body 501 acts as a heat absorber to cool the material;

[0043] Step 3: When each cavity 502 is filled with pure water to cool the material, the pure water after absorbing heat flows out along the second bellows 506 and can reach the heat exchanger through the drain pipe 507 for heat exchange. The pure water after heat exchange re-enters the cavity 502 along the water injection pipe 505 for circulation.

[0044] Step 4: After the material is cooled and formed into a plate shape, the plate is sent to the coating transfer device 9 through the transition conveyor roller 8. The functional coating preparation device 901 is used to store the prepared functional coating to be used, and send the coating to the surface of the upper coating roller 902 and the lower coating roller 903 through the pipeline. The upper coating roller 902 and the lower coating roller 903 are composed of two adjacent silicone rollers that rotate synchronously in different directions. The first function is to drive the PET film 905 on one of the rollers to operate; the second function is to make the functional coating flowing between the two rollers be evenly coated on the PET film 905. When the PET film 905 is in operation, the coating is transferred to the surface of the plate, and the functional coating transferred to the surface of the plate is initially cured through the PET film 905 by the sodium lamp 907;

[0045] Step 5: The transferred plate is sent to the surface of the conveying roller 1002 through the transition conveying roller 8 between the coating transfer device 9 and the UV curing device 10 for further transmission, and the coating on the surface of the plate is further cured by the UV curing lamp 1003 during the transmission process.

[0046] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A PMMA functional board continuous casting device, comprising a tensioning roller (1) on an injection part and a steel belt assembly (5), characterized in that: An upper driving roller (2) is arranged in parallel on the right side of the upper tensioning roller (1) of the injection part, and a lower driving roller (3) is arranged below the upper driving roller (2), and a lower tensioning roller (4) of the injection part is arranged in parallel on the left side of the lower driving roller (3), and the steel belt assembly (5) is arranged on the outer walls of the lower driving roller (3) and the lower tensioning roller (4) of the injection part and the upper driving roller (2) and the outer walls of the upper tensioning roller (1) of the injection part, and the steel belt assembly (5) comprises a steel belt body (501), a cavity (502), a connecting pipe (503), a first corrugated pipe (504), a water injection pipe (505), and a first The steel belt body (501) is provided with a cavity (502) inside, and the steel belt bodies (501) are connected through a connecting pipe (503) at the bottom. One side of the bottom of the steel belt body (501) is connected to a first bellows (504), and the bottom end of the first bellows (504) is connected to a water injection pipe (505) through a bearing. The other side of the bottom of the steel belt body (501) is connected to a second bellows (506), and the bottom of the second bellows (506) is connected to a drain pipe (507) through a bearing.

2. The PMMA functional board continuous casting molding device according to claim 1, characterized in that: One end of the upper tensioning roller (1) of the injection part and the lower tensioning roller (4) of the injection part are both connected to a guide rail electric cylinder, the inner side surface of the steel belt body (501) is provided with a steel belt clamping roller (6), and the end of the steel belt clamping roller (6) is provided with a motor screw.

3. The PMMA functional board continuous casting device according to claim 1, characterized in that: The second bellows (506) and the first bellows (504) are both sleeved with return springs, and the end of the drain pipe (507) is connected to a heat exchanger.

4. The PMMA functional board continuous casting device according to claim 1, characterized in that: An extruder (7) is arranged on the left side of the tensioning roller (1) on the injection portion, and a transition conveying roller (8) is arranged on the right side of the lower driving roller (3).

5. The PMMA functional board continuous casting device according to claim 4, characterized in that: A coating transfer device (9) is arranged on the right side of the transition conveying roller (8), and the coating transfer device (9) comprises a functional coating preparation device (901), an upper coating roller (902) and a lower coating roller (903), and an upper coating roller (902) and a lower coating roller (903) are arranged below the functional coating preparation device (901).

6. The PMMA functional board continuous casting device according to claim 5, characterized in that: The coating transfer device (9) further comprises a tensioning roller (904), and tensioning rollers (904) are arranged on the sides of the upper coating roller (902) and the lower coating roller (903).

7. The PMMA functional board continuous casting device according to claim 6, characterized in that: The coating transfer device (9) further comprises a PET film (905), and the surface of the tension roller (904) is provided with the PET film (905).

8. The PMMA functional board continuous casting device according to claim 7, characterized in that: The coating transfer device (9) further comprises a pinch roller (906) and a sodium lamp (907); the inner side of the PET film (905) is provided with a pinch roller (906), and the sodium lamp (907) is provided between the pinch rollers (906).

9. The PMMA functional board continuous casting device according to claim 5, characterized in that: A UV curing device (10) is arranged on the right side of the coating transfer device (9), and the UV curing device (10) comprises a frame (1001), a conveying roller (1002) and a UV curing lamp (1003). The conveying rollers (1002) are arranged at equal intervals on the surface of the frame (1001), and the UV curing lamps (1003) are arranged between the conveying rollers (1002) and are symmetrically distributed up and down.

10. A manufacturing method, using a PMMA functional board continuous casting molding device according to any one of claims 1 to 9, characterized in that: The production method comprises the following steps: Step 1: The extruder (7) provides a molten PMMA material with a polymerization rate of 100%. After being extruded, the material reaches the surface of the steel belt body (501) outside the tensioning roller (4) under the injection part. The material is transported along the steel belt body (501). The steel belt pinch roller (6) is driven up and down by the motor screw to control the distance between the steel belt bodies (501) to adjust the thickness of the material during molding; Step 2: When the material passes through the steel belt body (501), the water injection pipe (505) injects cooling pure water into the first corrugated pipe (504), and the pure water enters the cavity (502) of the steel belt body (501) and flows along the inside of each cavity (502) through the connecting pipe (503). During the flow of pure water, the steel belt body (501) acts as a heat absorber to cool the material; Step 3: When each cavity (502) is filled with pure water to cool the material and form it, the pure water after absorbing heat flows out along the second bellows (506) and can reach the heat exchanger through the drain pipe (507) for heat exchange. The pure water after heat exchange re-enters the cavity (502) along the water injection pipe (505) for circulation. Step 4: After the material is cooled and formed into a plate shape, the plate is sent to the coating transfer device (9) through the transition conveyor roller (8). The functional coating preparation device (901) is used to store the prepared functional coating to be used, and to send the coating to the surface of the upper coating roller (902) and the lower coating roller (903) through the pipeline. The upper coating roller (902) and the lower coating roller (903) are composed of two adjacent silicone rollers that rotate synchronously in different directions. The first function is to drive the PET film (905) on one of the rollers to operate; the second function is to make the functional coating flowing between the two rollers be evenly coated on the PET film (905). When the PET film (905) is in operation, the coating is transferred to the surface of the plate, and the functional coating transferred to the surface of the plate is initially cured through the PET film (905) by the sodium lamp (907); Step 5: The transferred plate is sent to the surface of the conveying roller (1002) through the transition conveying roller (8) between the coating transfer device (9) and the UV curing device (10) for further transmission, and the coating on the surface of the plate is further cured by the UV curing lamp (1003) during the transmission process.