An efficient production system for an optical hardening film

Abstract

The present application discloses a high-efficiency production system for an optical hardening film, which sequentially includes a unwinding device, a coating device, a tensioning device, a drying device, a UV curing device and a winding device from upstream to downstream. The production system further includes a first guide roller, a second guide roller and a third guide roller. The first guide roller is located between the coating device and the tensioning device, the second guide roller is located between the drying device and the UV curing device, and the third guide roller is located between the UV curing device and the winding device. The tensioning device includes a tensioning substrate, an electric push rod installed at the tensioning substrate, a tensioning roller frame driven by the electric push rod, and a tensioning roller installed at the tensioning roller frame. The production system of the present application can achieve high-efficiency drying, thereby realizing high-efficiency production.

Description

Technical Field

[0001] The present application relates to the field of optical hardening films, and particularly to an efficient production system for optical hardening films. Background Art

[0002] The optical hardening film is one of many optical films. It has better strength and can protect the surface of the display screen. The existing optical hardening film uses solvents and resins to be physically mixed and dispersed proportionally according to different product requirements to prepare the required coating solution. In a closed coating chamber, the coating solution is output through a liquid supply section to a coating device and coated on a clean PET film. After physical drying and UV curing, a surface bonding adhesive layer is formed on the PET film, and then it is wound into a hardening film. To ensure the quality of the produced optical hardening film, each step is very crucial, and accurate control of various production factors is required. For example, in the drying operation, appropriate drying of the coated optical hardening film is needed to ensure more efficient subsequent UV curing treatment. However, in the production workshop, often due to different weather and seasons, the temperature and humidity in the workshop are different. Therefore, the drying equipment needs to have a certain adjustment function. Currently, it is generally achieved by controlling the heating temperature of the heating unit, but the adjustment method is single, and sometimes the adjustment accuracy is insufficient. Summary of the Invention

[0003] Object of the Invention: To ensure that the drying operation is more stable and efficient, and the operation is more precise, thereby improving the efficiency of the entire production process. The present application discloses an efficient production system for optical hardening films.

[0004] Technical Solution: An optical hardening film production system includes, in sequence from upstream to downstream, an unwinding device, a coating device, a tensioning device, a drying device, a UV curing device, and a winding device.

[0005] Further, it further includes a first guide roller, a second guide roller, and a third guide roller. The first guide roller is located between the coating device and the tensioning device, the second guide roller is located between the drying device and the UV curing device, and the third guide roller is located between the UV curing device and the winding device. The tensioning device includes a tensioning base plate, an electric push rod installed at the tensioning base plate, a tensioning roller frame driven by the electric push rod, and a tensioning roller installed at the tensioning roller frame.

[0006] Further, the drying device includes two mounting brackets, a cylindrical central tube mounted between the two mounting brackets, a first circular ring plate fixed to the central tube, a rotating cylinder connected to the first circular ring plate through a first bearing, a friction ring fixed to the rotating cylinder, a motor base mounted on one of the mounting brackets, a first motor mounted on the motor base, and a friction roller mounted on the first motor and capable of abutting and driving the friction ring. The central tube is connected with two extension arms, and a drying guide roller is connected between the two extension arms. The optical hardening film sequentially passes through the drying guide roller and the rotating cylinder. The central tube has a plurality of strip-shaped air outlet through slots, and one end of the central tube is connected with an air inlet pipe, and a blower is mounted on the air inlet pipe. A heating unit is further disposed inside the rotating cylinder.

[0007] Further, a gear ring is further mounted on the central tube, and a second motor is mounted on one of the mounting brackets. A gear for driving the gear ring is mounted on the second motor. Two of the first circular ring plates are fixed to the central tube. The rotating cylinder includes a circular cylindrical surrounding plate and two circular end plates located at both ends of the surrounding plate. The two end plates and the two first circular ring plates correspond one by one, and the corresponding end plate and the first circular ring plate are connected through the first bearing. Each mounting bracket and the central tube are connected through a second bearing. The central tube is further connected with two radial connecting rods located inside the rotating cylinder, and a rotating partition plate is connected between the two radial connecting rods. The heating unit is located between the two first circular ring plates. The heating unit includes two second circular ring plates penetrated by the central tube. A surrounding ring surrounding the second circular ring plate is fixed to each second circular ring plate. A plurality of strip-shaped heating rods are connected between the two surrounding rings. A fixed partition plate is further connected between the two surrounding rings. A strip-shaped weight unit is disposed below the heating unit. A weight connecting rod is connected between each surrounding ring and the strip-shaped weight unit. The central tube can rotate relative to the second circular ring plate, and the fixed partition plate is in a horizontal state. The drying device further includes a drying box and a drying nozzle connected to the drying box. The optical hardening film passes through the drying box. The drying nozzle has a plurality of spray holes. A first connecting pipe is connected between each first circular ring plate and the drying nozzle. A second connecting pipe is connected between each first circular ring plate and the drying box. The first connecting pipe includes a first fixed pipe connected to the drying nozzle, a first movable pipe connected to the first circular ring plate, and a first flexible pipe connecting the first fixed pipe and the first movable pipe. The second connecting pipe includes a second fixed pipe connected to the drying box, a second movable pipe connected to the first circular ring plate, and a second flexible pipe connecting the second fixed pipe and the second movable pipe.

[0008] When the angle of the central tube is adjusted, the positions of the first movable tube and the second movable tube will change accordingly, but the positions of the first fixed tube and the second fixed tube are fixed. Thus, the arrangements of the first hose and the second hose ensure that no matter how the angle of the central tube is adjusted, the first connecting tube and the second connecting tube are always unobstructed.

[0009] Further, the rotating partition plate and the fixed partition plate divide the space inside the rotating cylinder into a first space and a second space. The lower surface of the fixed partition plate is located in the first space, and the upper surface of the fixed partition plate is located in the second space. The first connecting tube communicates with the first space, and the second connecting tube communicates with the second space.

[0010] Further, the two second circular ring plates and the two end plates correspond one by one, and the distance between the opposite surfaces of each second circular ring plate and its corresponding end plate is equal, and the distance is greater than 5 cm.

[0011] Thus, the gap between the second circular ring plate and the end plate is large enough to allow hot air to circulate.

[0012] Further, the inner circumferential surface of the second circular ring plate has an anti-slip coating for abutting against the central tube; a connecting frame is connected between each mounting bracket and the drying nozzle; the spray holes at the drying nozzle are divided into more than 3 rows, and the drying spray holes in each row are evenly spaced.

[0013] Thus, it is not easy for the central tube and the second circular ring plate to rotate relative to each other, but they can rotate under the drive of the gear and the cooperation of the strip-shaped counterweight unit.

[0014] Further, the strip-shaped counterweight unit is an iron strip-shaped counterweight unit; an electromagnet unit is provided below the rotating cylinder.

[0015] Thus, the electromagnet unit can essentially strengthen the force of the strip-shaped counterweight unit in the vertical direction to ensure that the strip-shaped counterweight unit is vertically downward.

[0016] Further, a plurality of triangular reinforcing ribs are connected between each first circular ring plate and the central tube; a plurality of strip-shaped air outlet through grooves at the central tube are annularly and evenly spaced.

[0017] Further, two counterweight connecting rods are connected between each surrounding ring and the strip-shaped counterweight unit.

[0018] Further, it further includes a frame unit, and the unwinding device, the coating device, the tensioning device, the drying device, the UV curing device, the winding device, the first guide roller, the second guide roller and the third guide roller are all installed at the frame unit.

[0019] Further, the two mounting brackets are fixed at the frame unit.

[0020] Further, the electromagnet unit is fixed to the frame unit.

[0021] Further, two tension guide roller brackets are installed on the tension substrate.

[0022] Further, the tension substrate is installed on the frame unit.

[0023] Further, the production system further includes a tension sensor and a control panel installed on the frame unit.

[0024] Further, the optical hardening film in the drying box is in a vertical state.

[0025] Further, the circumferential surface of the rotating cylinder between the fixed partition plate and the rotating partition plate is the circumferential surface of the rotating cylinder abutted by the optical hardening film.

[0026] Further, the circumferential surface of the rotating cylinder corresponding to the second space is the circumferential surface of the rotating cylinder abutted by the optical hardening film.

[0027] Further, a locking unit is installed at each mounting bracket. The locking unit includes a locking substrate fixed to the frame, a telescopic cylinder installed on the locking substrate, and a pressing block installed at the movable end of the telescopic cylinder and capable of pressing tightly against the mounting bracket.

[0028] Thus, the locking unit can lock the position of the central tube relative to the mounting bracket.

[0029] In addition, the present application also discloses a drying device. The drying device includes two mounting brackets, a cylindrical central tube mounted between the two mounting brackets, a first annular plate fixed to the central tube, a rotating cylinder connected to the first annular plate through a first bearing, a friction ring fixed to the rotating cylinder, a motor base mounted on one of the mounting brackets, a first motor mounted on the motor base, and a friction roller mounted on the first motor and capable of abutting and driving the friction ring. The central tube is connected with two extension arms, and a drying guide roller is connected between the two extension arms. The optical hardening film sequentially passes through the drying guide roller and the rotating cylinder. The central tube has a plurality of strip-shaped air outlet through grooves, and one end of the central tube is connected with an air inlet pipe, and a blower is mounted on the air inlet pipe. A heating unit is further provided in the rotating barrel. A gear ring is further mounted on the central tube, and a second motor is mounted on one of the mounting brackets, and a gear for driving the gear ring is mounted on the second motor. Two of the first annular plates are fixed to the central tube. The rotating cylinder includes an annular cylindrical surrounding plate and two circular end plates located at both ends of the surrounding plate. The two end plates and the two first annular plates correspond one by one, and the corresponding end plate and the first annular plate are connected through the first bearing. Each mounting bracket and the central tube are connected through a second bearing. The central tube is further connected with two radial connecting rods located inside the rotating cylinder, and a rotating partition plate is connected between the two radial connecting rods. The heating unit is located between the two first annular plates. The heating unit includes two second annular plates penetrated by the central tube. A surrounding ring surrounding the second annular plate is fixed to each second annular plate. A plurality of strip-shaped heating rods are connected between the two surrounding rings, and a fixed partition plate is further connected between the two surrounding rings. A strip-shaped weight unit is provided below the heating unit, and a weight connecting rod is connected between each surrounding ring and the strip-shaped weight unit. The central tube can rotate relative to the second annular plate, and the fixed partition plate is in a horizontal state. The drying device further includes a drying box and a drying nozzle connected to the drying box. The optical hardening film passes through the drying box. The drying nozzle has a plurality of spray holes. A first connecting pipe is connected between each first annular plate and the drying nozzle, and a second connecting pipe is connected between each first annular plate and the drying box. The first connecting pipe includes a first fixed pipe connected to the drying nozzle, a first movable pipe connected to the first annular plate, and a first flexible pipe connecting the first fixed pipe and the first movable pipe. The second connecting pipe includes a second fixed pipe connected to the drying box, a second movable pipe connected to the first annular plate, and a second flexible pipe connecting the second fixed pipe and the second movable pipe.

[0030] Further, the rotating partition plate and the fixed partition plate divide the space inside the rotating cylinder into a first space and a second space. The lower surface of the fixed partition plate is located in the first space, and the upper surface of the fixed partition plate is located in the second space. The first connecting pipe is communicated with the first space, and the second connecting pipe is communicated with the second space.

[0031] Further, the two second circular ring plates and the two end plates correspond to each other one by one. The distance between the opposite surfaces of each second circular ring plate and its corresponding end plate is equal, and the distance is greater than 5 cm.

[0032] Further, a locking unit is installed at each mounting frame. The locking unit includes a locking base plate fixed to the machine frame, a telescopic cylinder installed at the locking base plate, and a pressing block installed at the movable end of the telescopic cylinder and capable of pressing against the mounting frame.

[0033] Beneficial effects: Compared with the traditional production system for optical hardening films, the overall structure of the production system of the present application can be vertically distributed, thereby increasing the height of the equipment, but reducing the floor area of the equipment, thus saving more floor space.

[0034] The state of the drying device of the present application can be adjusted, so as to facilitate the adjustment of the drying intensity. The adjustment methods are diverse, and the combination of the adjustment methods can achieve a more precise adjustment of the drying intensity.

[0035] For the drying device of the present application, with the adjustment of the drying device and in cooperation with the tensioning device, the optical hardening film can be kept tensioned during transmission, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the production system;

[0037] Figure 2 It is a schematic diagram of the production system after the drying device is adjusted;

[0038] Figure 3 It is a schematic diagram of the first perspective of the production system;

[0039] Figure 4 It is an enlarged view of area A;

[0040] Figure 5 It is a schematic diagram of the second perspective of the production system;

[0041] Figure 6 It is an enlarged view of area B;

[0042] Figure 7 It is a schematic diagram of the third perspective of the production system;

[0043] Figure 8 It is an enlarged view of area C;

[0044] Figure 9 Schematic diagram of the first perspective of the disassembly of the components of the production system;

[0045] Figure 10 Enlarged view of area D;

[0046] Figure 11 Schematic diagram of the second perspective of the disassembly of the components of the production system;

[0047] Figure 12 Enlarged view of area E.

[0048] Among them Figure 3-12 In, in order to show the internal structure of the rotating cylinder, a part of the end plate is omitted. Specific implementation manner

[0049] Reference numerals: 1 Unwinding device; 2 Coating device; 3 Tensioning device; 3.1 Tensioning substrate; 3.2 Electric push rod; 3.3 Tensioning guide roller frame; 3.4 Tensioning guide roller; 4 Drying device; 4.1 Mounting frame; 4.1.1 Second motor; 4.1.2 Driving gear; 4.1.3 Motor seat; 4.1.4 First motor; 4.1.5 Friction roller; 4.1.6 Radial connecting rod; 4.1.7 Rotating partition plate; 4.1.8 Second bearing; 4.2 Central tube; 4.2.1 Extension arm; 4.2.2 Drying guide roller; 4.2.3 Tooth ring; 4.2.4 Locking substrate; 4.2.5 Telescopic cylinder; 4.2.6 Tightening block; 4.2.7 Air inlet pipe; 4.2.8 First circular plate; 4.2.9 Strip-shaped air outlet through groove; 4.3 Drying box; 4.3.1 First fixed pipe; 4.3.2 Second hose; 4.3.3 First movable pipe; 4.3.4 Second fixed pipe; 4.3.5 Second hose; 4.3.6 Second movable pipe; 4.3.7 Drying nozzle; 4.3.8 Spray hole; 4.3.9 Connecting frame; 4.4 Rotating cylinder; 4.4.1 Friction ring; 4.4.2 First bearing; 4.4.3 End plate; 4.5.1 Second circular plate; 4.5.2 Enclosing ring; 4.5.3 Fixed partition plate; 4.5.4 Counterweight connecting rod; 4.5.5 Strip-shaped counterweight unit; 4.5.6 Strip-shaped heating rod; 4.5.7 Electromagnet unit;; 5 UV curing device; 6 Rewinding device; 7.1 First guide roller; 7.2 Second guide roller; 7.3 Third guide roller; 8 Optical hardening film.

[0050] As shown in the figure: An efficient production system for an optical hardening film includes, in sequence from upstream to downstream, an unwinding device 1, a coating device 2, a tensioning device 3, a drying device 4, a UV curing device 5, and a winding device 6. The production system further includes a first guide roller 7.1, a second guide roller 7.2, and a third guide roller 7.3. The first guide roller 7.1 is located between the coating device 2 and the tensioning device 3. The second guide roller 7.2 is located between the drying device 4 and the UV curing device 5. The third guide roller 7.3 is located between the UV curing device 5 and the winding device 6. The tensioning device 3 includes a tensioning base plate 3.1, an electric push rod 3.2 installed at the tensioning base plate 3.1, a tensioning guide roller frame 3.3 driven by the electric push rod 3.2, and a tensioning guide roller 3.4 installed at the tensioning guide roller frame 3.3.

[0051] The drying device 4 includes two mounting brackets 4.1, a cylindrical central tube 4.2 mounted between the two mounting brackets 4.1, a first circular ring plate 4.2.8 fixed to the central tube 4.2, a rotating cylinder 4.4 connected to the first circular ring plate 4.2.8 through a first bearing 4.4.2, a friction ring 4.4.1 fixed to the rotating cylinder 4.4, a motor base 4.1.3 mounted on one of the mounting brackets 4.1, a first motor 4.1.4 mounted on the motor base 4.1.3, and a friction roller 4.1.5 mounted on the first motor 4.1.4 and capable of abutting and driving the friction ring 4.4.1. The central tube 4.2 is connected with two extension arms 4.2.1, and a drying guide roller 4.2.2 is connected between the two extension arms 4.2.1. The optical hardening film 8 passes through the drying guide roller 4.2.2 and the rotating cylinder 4.4 in sequence. The central tube 4.2 has a plurality of strip-shaped air outlet through grooves 4.2.9. One end of the central tube 4.2 is connected with an air inlet pipe 4.2.7, and a blower is installed on the air inlet pipe 4.2.7. A heating unit is further arranged in the rotating cylinder 4.4.A gear ring 4.2.3 is also installed at the center tube 4.2. A second motor 4.1.1 is installed at one of the mounting brackets 4.1, and a gear 4.1.2 for driving the gear ring 4.2.3 is installed at the second motor 4.1.1; Two first ring plates 4.2.8 are fixed at the center tube 4.2. The rotating cylinder 4.4 includes a ring-shaped cylindrical surrounding plate and two circular end plates 4.4.3 at both ends of the surrounding plate. The two end plates 4.4.3 and the two first ring plates 4.2.8 correspond one by one, and the corresponding end plate 4.4.3 and the first ring plate 4.2.8 are connected by the first bearing 4.4.2. Each mounting bracket 4.1 and the center tube 4.2 are connected by a second bearing 4.1.8; Two radial connecting rods 4.1.6 located inside the rotating cylinder 4.4 are also connected to the center tube 4.2, and a rotating partition plate 4.1.7 is connected between the two radial connecting rods 4.1.6; The heating unit is located between the two first ring plates 4.2.8. The heating unit includes two second ring plates 4.5.1 penetrated by the center tube 4.2. A surrounding ring 4.5.2 surrounding the second ring plate 4.5.1 is fixed at each second ring plate 4.5.1. A plurality of strip-shaped heating rods 4.5.6 are connected between the two surrounding rings 4.5.2. A fixed partition plate 4.5.3 is also connected between the two surrounding rings 4.5.2. A strip-shaped weight unit 4.5.5 is provided below the heating unit. A weight connecting rod 4.5.4 is connected between each surrounding ring 4.5.2 and the strip-shaped weight unit 4.5.5. The center tube 4.2 can rotate relative to the second ring plate 4.5.1, and the fixed partition plate 4.5.3 is in a horizontal state; The drying device further includes a drying box 4.3 and a drying nozzle 4.3.7 connected to the drying box 4.3. The optical hardening film 8 passes through the drying box 4.3. The drying nozzle 4.3.7 has a plurality of spray holes 4.3.8. A first connecting pipe is connected between each first ring plate 4.2.8 and the drying nozzle 4.3.7, and a second connecting pipe is connected between each first ring plate 4.2.8 and the drying box 4.3. The first connecting pipe includes a first fixed pipe 4.3.1 connected to the drying nozzle 4.2.7, a first movable pipe 4.3.3 connected to the first ring plate 4.2.8, and a first hose 4.3.2 connecting the first fixed pipe 4.3.1 and the first movable pipe 4.3.3. The second connecting pipe includes a second fixed pipe 4.3.4 connected to the drying box 4.3.7, a second movable pipe 4.3.6 connected to the first ring plate 4.2.8, and a second hose 4.3.5 connecting the second fixed pipe 4.3.4 and the second movable pipe 4..3.6.The rotating partition plate 4.1.7 and the fixed partition plate 4.5.3 divide the space inside the rotating cylinder 4.4 into a first space and a second space. The lower surface of the fixed partition plate 4.5.3 is located in the first space, and the upper surface of the fixed partition plate 4.5.3 is located in the second space. The first connecting pipe communicates with the first space, and the second connecting pipe communicates with the second space.

[0052] The two second annular plates 4.5.1 and the two end plates 4.4.3 correspond to each other one by one. The distance between the opposite surfaces of each second annular plate 4.5.1 and its corresponding end plate 4.4.3 is equal, and the distance is greater than 5 cm. The inner circumferential surface of the second annular plate 4.5.1 has an anti-slip coating that abuts against the central tube 4.2; A connecting frame 4.3.9 is connected between each mounting frame 4.1 and the drying nozzle 4.3.7; The spray holes 4.3.8 at the drying nozzle 4.3.7 are divided into more than 3 rows, and the drying spray holes 4.3.8 in each row are evenly spaced. The strip-shaped counterweight unit 4.5.5 is a strip-shaped counterweight unit 4.5.5 made of iron; An electromagnet unit 4.5.7 is provided below the rotating cylinder 4.4. A plurality of triangular reinforcing ribs are connected between each first annular plate 4.2.8 and the central tube 4.2; The plurality of strip-shaped air outlet through grooves 4.2.9 at the central tube 4.2 are annularly and evenly spaced. Two counterweight connecting rods 4.5.4 are connected between each surrounding ring 4.5.2 and the strip-shaped counterweight unit 4.5.5.

[0053] The production device of the present application is as shown in the figure, and can successively perform operations such as unwinding, coating, drying, UV curing, and winding, forming an integrated automated operation. And as shown in the figure, the entire production line is vertically arranged, thus saving more space, and the tensioning device can always keep the optical hardening film taut.

[0054] In addition, as shown in the figure for the drying operation of the present application, the air flow generated by the fan enters the rotating cylinder and is heated, and then radially diverges, passes through the gap between the second annular plate and the end plate, and then enters the drying nozzle and the drying box through the first connecting pipe and the second connecting pipe respectively. Since the surface of the rotating cylinder is hot, the film in contact with the rotating cylinder will be quickly dried, and the film passing through the drying box will be blown by the drying nozzle, thus also achieving a drying effect. As shown in the figure, the central tube can rotate (rotate a certain angle under the drive of the gear when adjustment is required), such as Figure 1 、 2The difference between them is that by rotating the central tube, the angle of the drying guide roller can be adjusted, so that the angle of the film against the rotating cylinder can be adjusted, and thus the drying effect can be adjusted (the greater the angle of close contact, the better the drying effect). And no matter how the angle of the central tube is adjusted, due to the action of the counterweight, the fixed partition plate is always in a horizontal state, and the rotation angles of the rotating partition plate and the connecting arm are corresponding. Whenever, the circumferential surface of the rotating cylinder between the fixed partition plate and the rotating partition plate (the circumferential surface of the rotating cylinder corresponding to the second space) is the circumferential surface of the rotating cylinder against which the optical hardening film abuts. At this time, in the space inside the rotating cylinder, the hot air in the first space is not used to dry the optical hardening film, so the temperature is higher, and it is connected to the drying nozzle to achieve better drying. The hot air in the second space has a lower temperature after drying the optical hardening film, so it is connected to the drying box and used for heat preservation in the drying box. Therefore, on the one hand, the temperature control of the heating unit can adjust the drying effect, and on the other hand, the adjustment of the angle of the central tube can also adjust the drying effect, so that the adjustment of the drying effect of the optical hardening film is more accurate, the drying effect is better, and the entire production process is more efficient.

[0055] Although the present invention has been illustrated and described with respect to the preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention as long as they do not exceed the scope defined by the claims of the present invention.

Claims

1. An efficient production system for an optical hardening film, characterized in that, It successively includes an unwinding device, a coating device, a tensioning device, a drying device, a UV curing device and a winding device from upstream to downstream; The drying device includes two mounting frames, a cylindrical central tube mounted between the two mounting frames, a first annular plate fixed at the central tube, a rotating cylinder connected to the first annular plate through a first bearing, a friction ring fixed at the rotating cylinder, a motor base mounted at one of the mounting frames, a first motor mounted at the motor base, and a friction roller mounted at the first motor and capable of abutting and driving the friction ring. The central tube is connected with two extension arms, and a drying guide roller is connected between the two extension arms. The optical hardening film successively passes through the drying guide roller and the rotating cylinder. The central tube has a plurality of strip-shaped air outlet through grooves, one end of the central tube is connected with an air inlet pipe, and a blower is mounted at the air inlet pipe. A heating unit is further arranged in the rotating cylinder; A gear ring is further mounted at the central tube, a second motor is mounted at one of the mounting frames, and a gear for driving the gear ring is mounted at the second motor. Two of the first annular plates are fixed at the central tube. The rotating cylinder includes an annular cylindrical surrounding plate and two circular end plates located at both ends of the surrounding plate. The two end plates and the two first annular plates correspond one by one, and the corresponding end plate and the first annular plate are connected through the first bearing. Each mounting frame and the central tube are connected through a second bearing. The central tube is further connected with two radial connecting rods located inside the rotating cylinder, and a rotating partition plate is connected between the two radial connecting rods. The heating unit is located between the two first annular plates. The heating unit includes two second annular plates penetrated by the central tube. A surrounding ring surrounding the second annular plate is fixed at each second annular plate. A plurality of strip-shaped heating rods are connected between the two surrounding rings, and a fixed partition plate is further connected between the two surrounding rings. A strip-shaped weight unit is arranged below the heating unit, and a weight connecting rod is connected between each surrounding ring and the strip-shaped weight unit. The central tube can rotate relative to the second annular plate, and the fixed partition plate is in a horizontal state.

2. The high-efficiency production system of the optical hardening film according to claim 1, characterized in that, It further includes a first guide roller, a second guide roller and a third guide roller. The first guide roller is located between the coating device and the tensioning device, the second guide roller is located between the drying device and the UV curing device, and the third guide roller is located between the UV curing device and the winding device. The tensioning device includes a tensioning base plate, an electric push rod mounted at the tensioning base plate, a tensioning guide roller frame driven by the electric push rod, and a tensioning guide roller mounted at the tensioning guide roller frame.

3. The high-efficiency production system of the optical hardening film according to claim 2, characterized in that, The drying device further includes a drying box and a drying nozzle connected to the drying box. The optical hardening film passes through the drying box. The drying nozzle has a plurality of spray holes. A first connecting pipe is connected between each first circular ring plate and the drying nozzle, and a second connecting pipe is connected between each first circular ring plate and the drying box. The first connecting pipe includes a first fixed pipe connected to the drying nozzle, a first movable pipe connected to the first circular ring plate, and a first flexible hose connecting the first fixed pipe and the first movable pipe. The second connecting pipe includes a second fixed pipe connected to the drying box, a second movable pipe connected to the first circular ring plate, and a second flexible hose connecting the second fixed pipe and the second movable pipe.

4. The high-efficiency production system of an optically cured film according to claim 3, characterized in that, The rotating partition plate and the fixed partition plate divide the space inside the rotating cylinder into a first space and a second space. The lower surface of the fixed partition plate is located in the first space, and the upper surface of the fixed partition plate is located in the second space. The first connecting pipe communicates with the first space, and the second connecting pipe communicates with the second space.

5. The high-efficiency production system of an optical hardening film according to claim 3, wherein, The two second circular ring plates and the two end plates correspond one by one. The distance between the opposite surfaces of each second circular ring plate and its corresponding end plate is equal, and the distance is greater than 5 cm.

6. The high-efficiency production system of an optically cured film according to claim 3, characterized in that, The inner circumferential surface of the second circular ring plate has an anti-slip coating that abuts against the central pipe; a connecting frame is connected between each mounting bracket and the drying nozzle; the spray holes at the drying nozzle are divided into more than 3 rows, and the drying spray holes in each row are evenly spaced.

7. The high-efficiency production system of the optical hardening film according to claim 3, characterized in that, The strip-shaped counterweight unit is an iron strip-shaped counterweight unit; an electromagnet unit is provided below the rotating cylinder.

8. The high-efficiency production system of the optical hardening film according to claim 3, characterized in that A plurality of triangular reinforcing ribs are connected between each first circular ring plate and the central pipe; the plurality of strip-shaped air outlet through grooves at the central pipe are evenly distributed in a ring; two counterweight connecting rods are connected between each surrounding ring and the strip-shaped counterweight unit.

9. The high-efficiency production system of an optically hardenable film according to claim 3, characterized in that, A locking unit is installed at each mounting bracket. The locking unit includes a locking substrate fixed to the frame, a telescopic cylinder installed at the locking substrate, and a pressing block installed at the movable end of the telescopic cylinder and capable of pressing against the mounting bracket.

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