An inorganic mineral-based continuous casting film production line

Abstract

The present invention belongs to the technical field of the production of inorganic mineral-based casting films, in particular to a continuous production line for inorganic mineral-based casting films, which includes an extruder and a twin-screw machine. There is a feeding position arranged between the extruder and the twin-screw machine. A metering pump is fixedly installed at the discharge end of the extruder. A casting machine is arranged below the discharge end of the metering pump. A thickness gauge is fixedly installed on one side of the casting machine. A corona machine is fixedly installed on one side of the thickness gauge. For this continuous production line for inorganic mineral-based casting films, by setting a defect detection device, since inorganic mineral-based raw materials such as calcium carbonate are included, the light transmittance of the film is poor. Therefore, the light source and the pan-tilt camera are arranged on the same side, and the reflective lighting method is adopted to facilitate the pan-tilt camera to take pictures, and the collected images are processed by image analysis software, so as to determine the size, position and type of defects, achieving the effect of quickly detecting defects.

Description

Technical Field

[0001] The present invention relates to the technical field of the production of inorganic mineral-based casting films, and particularly to a continuous production line for inorganic mineral-based casting films. Background Art

[0002] An inorganic mineral-based casting film is a thin film material prepared by a casting method, which is mainly composed of a composite of inorganic mineral powder and polymer materials. This material has excellent mechanical properties, thermal stability and chemical stability, and is widely used in many fields.

[0003] During the production of an inorganic mineral-based casting film, the molten polymer is extruded and spread into a film. Cooling can quickly solidify the molten polymer, thereby maintaining the shape and dimensional stability of the film, preventing it from sticking due to high temperature during winding or subsequent processing, and at the same time helping to control the crystallization and molecular orientation of the polymer. Without effective cooling, the film may deform under the action of gravity or tension.

[0004] At present, the cooling method for inorganic mineral-based casting films is to use a cooling roll, that is, cooling water is sprayed into the hollow roll interior through a circulation device in a suspended manner. As the hollow roll rotates, the cooling water cools the roll body, and then cools and shapes the casting film through heat conduction. However, the heat conduction efficiency of this method is limited, resulting in a slow cooling speed, affecting the production efficiency. At the same time, since the cooling water directly enters the interior of the cooling roll, the surface temperature distribution of the cooling roll is uneven, which easily causes different cooling speeds of each part of the casting film, thus affecting the quality and performance uniformity of the film. Summary of the Invention

[0005] Based on the above-mentioned technical problems, the present invention proposes a continuous production line for inorganic mineral-based casting films.

[0006] A continuous production line for inorganic mineral-based casting films proposed by the present invention includes an extruder and a twin-screw machine. There is a feeding position between the extruder and the twin-screw machine. A metering pump is fixedly installed at the discharging end of the extruder. A casting machine is arranged below the discharging end of the metering pump. A thickness gauge is fixedly installed on one side of the casting machine. A corona machine is fixedly installed on one side of the thickness gauge. A defect detection mechanism is arranged on one side of the corona machine. A cooling device is fixedly installed on one side of the defect detection mechanism. A swing frame is fixedly installed on one side of the cooling device. A slitter is fixedly installed on one side of the swing frame. A tractor is fixedly installed on one side of the slitter. An upper and lower cutter machine is fixedly installed on one side of the tractor. A winder is fixedly installed on one side of the upper and lower cutter machine.

[0007] Among them, the defect detection mechanism includes a bracket, and a pan-tilt camera is arranged on the inner surface of the bracket. The pan-tilt camera takes images above the film and processes the collected images through image analysis software to determine the size, position, and type of defects.

[0008] Among them, the cooling device includes a frame, and two rollers, two guide rollers, a rotational traction mechanism, and a circulating water cooling mechanism are respectively arranged on the surface of the frame.

[0009] The rotational traction mechanism includes a driving motor, and a driving gear is fixedly sleeved on the output shaft of the driving motor through a coupling.

[0010] The circulating water cooling mechanism includes a water tank and cylinder columns respectively installed inside the two rollers through bearings. By introducing the coolant in the water tank into the cylinder columns, the cooling effect on the film is achieved.

[0011] Preferably, the defect detection mechanism further includes self-driven sliding rails symmetrically embedded in the inner wall of the bracket. Sliders are arranged on both of the two self-driven sliding rails, and a mounting plate is fixedly connected between the two sliders. The pan-tilt camera is installed in the middle of the lower surface of the mounting plate.

[0012] Through the above technical solution, the pan-tilt camera realizes the left and right swing of the camera through the built-in pan-tilt, thereby providing more stable shooting and more flexible shooting angles, which is convenient for comprehensively detecting possible defects on the film surface.

[0013] Preferably, baffles are arranged on both sides of the outer surface of the bracket, and travel switches are fixedly installed on the lower surfaces of the baffles. The travel switches are electrically connected to the self-driven sliding rails and the driving motor respectively.

[0014] Through the above technical solution, when the travel switch detects that the film has moved a certain distance, it controls the driving motor to stop running and controls the self-driven sliding rail to start, so that the slider on the self-driven sliding rail moves downward to drive the mounting plate to move downward, and the downward movement of the mounting plate drives the pan-tilt camera to approach the film.

[0015] Preferably, a support plate is fixedly installed on the inner surface of the bracket, the support plate is located below the film, and a light source is arranged on the inner surface of the bracket close to the support plate.

[0016] Through the above technical solution, the light source is turned on so that the light source is above the film. By lighting, it is convenient for the pan-tilt camera to take images above the film, and the film defects can be detected better. The support plate supports the film.

[0017] Preferably, air holes are arranged in a rectangular array on the upper surface of the support plate and the lower surface of the mounting plate.

[0018] Through the above technical solution, by opening air holes on the board, the use of materials can be reduced, thereby reducing the weight of the overall structure. At the same time, the air holes contribute to increasing air circulation, thus improving the heat dissipation efficiency.

[0019] Preferably, the rotating traction mechanism further includes driven gears respectively and fixedly sleeved on the surfaces of one ends of the two rollers, and both of the driven gears are meshed with the driving gear, and the driving gear is installed on one side surface of the frame through a bearing.

[0020] Through the above technical solution, the rotation of the output shaft of the driving motor drives the driving gear connected thereto to rotate, and the rotation of the driving gear drives the two driven gears meshed therewith to rotate, thereby driving the two rollers to rotate. As the two rollers rotate, the pulling and transporting operation of the film is realized.

[0021] Preferably, the circulating water cooling mechanism further includes a sleeve column fixedly sleeved on the surface of the cylinder column. Cooling blocks are arranged in an annular array on the surface of the sleeve column. At the same time, cooling pipes are spirally distributed on the outer surface of the sleeve column. A liquid outlet is formed on the surface of the cylinder column, and the liquid outlet extends out of the sleeve column and is communicated with the cooling pipes.

[0022] Through the above technical solution, the cooling blocks absorb the heat of the cylinder column, and then the coolant in the cooling pipes takes away the heat. The liquid outlet ensures that the coolant can be discharged smoothly for recycling.

[0023] Preferably, the cooling pipes are inserted into the inner walls of the cooling blocks, and the outer surfaces of the cooling blocks and the cooling pipes are in sliding contact with the inner wall of the roller.

[0024] Through the above technical solution, the direct contact between the cooling blocks and the cooling pipes enables the heat to be transferred from the roller to the coolant more quickly, facilitating continuous heat absorption when the roller rotates.

[0025] Preferably, a water pump is arranged on the outer surface of the water tank. The water pump is fixedly communicated with the first water tank through a water guide pipe. A return pipe is fixedly communicated with the surface of the water tank. One end of the return pipe is fixedly communicated with the second water tank. The first water tank and the second water tank are respectively fixedly installed on the outer surfaces of both sides of the frame. Two water outlet pipes are respectively fixedly connected to the lower surface of the first water tank, and the two water outlet pipes are respectively fixedly communicated with one ends of the two cylinder columns. Two water inlet pipes are respectively fixedly connected to the upper surface of the second water tank, and the two water inlet pipes are respectively fixedly communicated with the other ends of the two cylinder columns.

[0026] Through the above technical solution, the water pump extracts the coolant in the water tank and transports it to the first water tank through the water conduit. The coolant in the first water tank is transported to one end of two cylinder columns through the water outlet pipe. The coolant exchanges heat in the cylinder columns, absorbs heat, and then returns to the second water tank through the water inlet pipe. The coolant in the second water tank flows back to the water tank through the return pipe to complete a cycle.

[0027] Preferably, valves are respectively installed on the surfaces of the two water outlet pipes. A water level sensor is fixedly connected to the inner surface of the first water tank. The water level sensor is electrically connected to the valves and the water pump respectively. A booster pump is arranged on the surface of the water conduit.

[0028] Through the above technical solution, the water level sensor monitors the water level in the first water tank in real time. When the water level is lower than the set value, the sensor sends a signal. After receiving the signal from the water level sensor, the water pump starts and the valves close. The coolant is extracted from the water tank and transported to the first water tank until the water level reaches the set value. When the water level sensor detects that the water level in the first water tank is higher than the set value, the control valve opens and the water pump stops running, and it can adjust the flow rate of the coolant to ensure that the cylinder columns receive an appropriate amount of coolant.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. The continuous production line of the inorganic mineral-based casting film of the present invention adopts a continuous granulation-casting integrated process to replace the traditional two-step method: by integrating a high-shear mixing and dynamic plasticizing module, the granulation link is directly embedded in the casting production line to realize the online modification of high-content inorganic mineral-based raw materials; the high shear force evenly disperses the inorganic mineral particles in the polymer matrix, and at the same time the dynamic plasticizing technology enhances the interfacial bonding force between the mineral and the polymer, and the interfacial strength is increased by 30%, effectively avoiding defects such as cracks and thickness fluctuations caused by uneven dispersion in the traditional process; combined with the industrial PLC centralized control and the servo / vector motor closed-loop drive system, the production line running speed exceeds 150 meters per minute, and the plasticizing stability reaches a good product rate of ≥99%; synchronously optimizing the anti-static runner design to reduce the risk of shutdown caused by the deposition of inorganic particles. This technology adapts to the large-scale demands for high-barrier and thin films in fields such as packaging and medical treatment, and has the advantages of environmental protection and economic benefits.

[0031] 2. By setting a defect detection device, since the film has poor light transmittance due to the inclusion of inorganic mineral-based raw materials such as calcium carbonate, the light source and the pan-tilt camera are set on the same side, and the reflective lighting method is adopted to facilitate the pan-tilt camera to take pictures, and the collected images are processed by image analysis software to determine the size, position and type of the defects, achieving the effect of quickly detecting defects.

[0032] 3. By setting up a cooling device and using a water level sensor to control the water pump and valve, the coolant in the water tank is introduced into the cooling pipe, so as to contact the roller, facilitating the absorption of the heat of the film. At the same time, with the flow of the coolant and the rotation of the roller, it can continuously absorb heat, and cooperate with the cooling block, which not only facilitates the support of the cooling pipe, but also increases the contact area with the roller, improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0034] Figure 2 Stereogram of the bracket structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0035] Figure 3 Stereogram of the mounting plate structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0036] Figure 4 Stereogram of the self-driving slide rail structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0037] Figure 5 Stereogram of the travel switch structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0038] Figure 6 Stereogram of the frame structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0039] Figure 7 Stereogram of the booster pump structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0040] Figure 8 Stereogram of the roller structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0041] Figure 9 Stereogram of the water level sensor structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0042] Figure 10 Stereogram of the driven gear structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0043] Figure 11 Stereogram of the cooling pipe structure of a continuous production line for inorganic mineral-based casting film proposed by the present invention;

[0044] Figure 12Stereogram of the sleeve column structure of a continuous production line for an inorganic mineral-based casting film proposed by the present invention;

[0045] Figure 13 Stereogram of the liquid outlet structure of a continuous production line for an inorganic mineral-based casting film proposed by the present invention.

[0046] In the figure: 1, extruder; 2, twin-screw machine; 3, feeding position; 4, metering pump; 5, casting machine; 6, thickness gauge; 7, corona machine; 8, support; 81, pan-tilt camera; 82, self-driven slide rail; 83, slider; 84, mounting plate; 85, baffle; 86, travel switch; 87, support plate; 88, light source; 89, air hole; 9, frame; 91, roller; 92, guide roller; 93, drive motor; 931, driving gear; 932, driven gear; 94, water tank; 941, cylinder column; 942, sleeve column; 943, cooling block; 944, cooling pipe; 945, liquid outlet; 946, water pump; 947, water pipe; 948, first water tank; 949, return pipe; 9410, second water tank; 9411, water outlet pipe; 9412, water inlet pipe; 9413, valve; 9414, water level sensor; 9415, booster pump; 10, swing frame; 11, slitter; 12, tractor; 13, upper and lower cutter machine; 14, winder. Specific embodiments

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0048] Refer to Figures 1-13 , a continuous production line for an inorganic mineral-based casting film, including an extruder 1 and a twin-screw machine 2. A feeding position 3 is arranged between the extruder 1 and the twin-screw machine 2. A metering pump 4 is fixedly installed at the discharging end of the extruder 1. A casting machine 5 is arranged below the discharging end of the metering pump 4. A thickness gauge 6 is fixedly installed on one side of the casting machine 5. A corona machine 7 is fixedly installed on one side of the thickness gauge 6. A defect detection mechanism is arranged on one side of the corona machine 7. A cooling device is fixedly installed on one side of the defect detection mechanism. A swing frame 10 is fixedly installed on one side of the cooling device. A slitter 11 is fixedly installed on one side of the swing frame 10. A tractor 12 is fixedly installed on one side of the slitter 11. An upper and lower cutter machine 13 is fixedly installed on one side of the tractor 12. A winder 14 is fixedly installed on one side of the upper and lower cutter machine 13.

[0049] The continuous production line of the inorganic mineral-based casting film of the present invention adopts a continuous granulation-casting integrated process to replace the traditional two-step method: by integrating a high-shear mixing and dynamic plasticization module, the granulation link is directly embedded in the casting production line to realize the on-line modification of high-content inorganic mineral-based raw materials; the high shear force evenly disperses inorganic mineral particles in the polymer matrix, and at the same time, the dynamic plasticization technology enhances the interfacial bonding force between the mineral and the polymer, and the interfacial strength is increased by 30%, effectively avoiding defects such as cracks and thickness fluctuations caused by uneven dispersion in the traditional process; combined with the industrial PLC centralized control and the servo / vector motor closed-loop drive system, the running speed of the production line exceeds 150 meters per minute, and the plasticization stability reaches a good product rate of ≥99%; synchronously optimizing the anti-static channel design to reduce the risk of shutdown caused by the deposition of inorganic particles. This technology adapts to the large-scale requirements of high-barrier and thin films in the fields of packaging, medical treatment, etc., and has the advantages of environmental protection and economic benefits.

[0050] Among them, as Figures 2-5 shown, in order to detect the surface defects of the film, the defect detection mechanism includes a bracket 8, and a pan-tilt camera 81 is arranged on the inner surface of the bracket 8. The pan-tilt camera 81 takes images above the film and processes the collected images through image analysis software to determine the size, position and type of the defects.

[0051] As Figure 4 shown, in order to make the pan-tilt camera 81 close to the film, the defect detection mechanism further includes self-driven slide rails 82 symmetrically embedded in the inner wall of the bracket 8. Both self-driven slide rails 82 are provided with sliders 83, and an installation plate 84 is fixedly connected between the two sliders 83. The pan-tilt camera 81 is installed in the middle of the lower surface of the installation plate 84. The pan-tilt camera 81 realizes the left and right swing of the camera through the built-in pan-tilt, so as to provide more stable shooting and more flexible shooting angles, and is convenient for comprehensively detecting possible defects on the film surface.

[0052] As Figures 3-5 shown, in order to limit the movement of the film, baffles 85 are arranged on both sides of the outer surface of the bracket 8, and travel switches 86 are fixedly installed on the lower surfaces of the baffles 85. The travel switches 86 are electrically connected to the self-driven slide rails 82 and the drive motor 93 respectively. When the travel switches 86 detect that the film moves a certain distance, the drive motor 93 is controlled to stop running, and the self-driven slide rails 82 are controlled to start, so that the sliders 83 on the self-driven slide rails 82 move downward to drive the installation plate 84 to move downward, and the downward movement of the installation plate 84 drives the pan-tilt camera 81 to approach the film.

[0053] As Figures 3-4As shown in the figure, in order to make the shooting of the pan-tilt camera 81 clearer, a support plate 87 is fixedly installed on the inner surface of the bracket 8. The support plate 87 is located below the film. A light source 88 is provided on the inner surface of the bracket 8 close to the support plate 87. By turning on the light source 88, the light source is above the film. By illuminating, it is convenient for the pan-tilt camera 81 to take images above the film, and it is possible to better detect film defects. The support plate 87 supports the film.

[0054] As Figures 3-4 shown in the figure, in order to reduce the heat generated when the light source 88 is in use, air holes 89 are arranged in a rectangular array on the upper surface of the support plate 87 and the lower surface of the mounting plate 84. By opening the air holes 89 on the plate, the use of materials can be reduced, thereby reducing the weight of the overall structure. At the same time, the air holes 89 help to increase air circulation, thereby improving the heat dissipation efficiency.

[0055] In the present invention, by setting up a defect detection device, since the film contains inorganic mineral-based raw materials such as calcium carbonate, the light transmittance of the film is poor. Therefore, the light source 88 and the pan-tilt camera 81 are arranged on the same side, and a reflective lighting method is adopted, which is convenient for the pan-tilt camera 81 to take pictures, and the collected images are processed by image analysis software to determine the size, position and type of the defects, so as to achieve the effect of quickly detecting defects.

[0056] Among them, as Figure 2 and Figures 6-13 shown in the figure, in order to cool down the film, the cooling device includes a frame 9. Two roller cylinders 91, two guide rollers 92, a rotating traction mechanism and a circulating water cooling mechanism are respectively arranged on the surface of the frame 9.

[0057] As Figures 6-8 shown in the figure, in order to realize the automatic traction and transportation operation of the film, the rotating traction mechanism includes a driving motor 93. The output shaft of the driving motor 93 is fixedly sleeved with a driving gear 931 through a coupling. The rotating traction mechanism also includes driven gears 932 respectively fixedly sleeved on one end surface of the two roller cylinders 91. Both of the two driven gears 932 are meshed with the driving gear 931. The driving gear 931 is installed on one side surface of the frame 9 through a bearing. By the rotation of the output shaft of the driving motor 93, the driving gear 931 connected thereto is driven. The rotation of the driving gear 931 drives the two driven gears 932 meshed therewith to rotate, thereby driving the two roller cylinders 91 to rotate. With the rotation of the two roller cylinders 91, the traction and transportation operation of the film is realized.

[0058] As Figure 6 and Figures 8-13 shown in the figure, in order to achieve the cooling effect of the film, the circulating water cooling mechanism includes a water tank 94 and cylinder columns 941 respectively installed inside the two roller cylinders 91 through bearings. By introducing the coolant in the water tank 94 into the cylinder columns 941, the cooling effect of the film is achieved.

[0059] As Figures 10-13 shown, for facilitating heat absorption, the circulating water cooling mechanism further includes a sleeve column 942 fixedly sleeved on the surface of the cylinder column 941. Cooling blocks 943 are arranged on the surface of the sleeve column 942 in an annular array distribution. Meanwhile, cooling pipes 944 are spirally distributed on the outer surface of the sleeve column 942. A liquid outlet 945 is formed on the surface of the cylinder column 941. The liquid outlet 945 extends outside the sleeve column 942 and communicates with the cooling pipes 944. The cooling blocks 943 absorb the heat of the cylinder column 941, and then the coolant in the cooling pipes 944 takes away the heat. The liquid outlet 945 ensures that the coolant can be smoothly discharged for recycling.

[0060] As Figures 11-13 shown, for improving the heat absorption efficiency, the cooling pipes 944 are inserted into the inner walls of the cooling blocks 943. The outer surfaces of the cooling blocks 943 and the cooling pipes 944 are in sliding contact with the inner wall of the roller 91. The direct contact between the cooling blocks 943 and the cooling pipes 944 enables the heat to be transferred from the roller 91 to the coolant more quickly, facilitating continuous heat absorption when the roller 91 rotates.

[0061] As Figures 6-8 shown, for realizing circulating cooling, a water pump 946 is arranged on the outer surface of the water tank 94. The water pump 946 is fixedly communicated with a first water tank 948 through a water conduit 947. A return pipe 949 is fixedly communicated with the surface of the water tank 94. One end of the return pipe 949 is fixedly communicated with a second water tank 9410. The first water tank 948 and the second water tank 9410 are respectively fixedly installed on the outer surfaces of both sides of the frame 9. Two water outlet pipes 9411 are respectively fixedly connected to the lower surface of the first water tank 948. The two water outlet pipes 9411 are respectively fixedly communicated with one end of the two cylinder columns 941. Two water inlet pipes 9412 are respectively fixedly connected to the upper surface of the second water tank 9410. The two water inlet pipes 9412 are respectively fixedly communicated with the other end of the two cylinder columns 941. The water pump 946 pumps out the coolant in the water tank 94 and transports it to the first water tank 948 through the water conduit 947. The coolant in the first water tank 948 is transported to one end of the two cylinder columns 941 through the water outlet pipes 9411. The coolant exchanges heat in the cylinder columns 941, absorbs heat, and then returns to the second water tank 9410 through the water inlet pipes 9412. The coolant in the second water tank 9410 flows back to the water tank 94 through the return pipe 949 to complete a cycle.

[0062] As Figure 6 and Figure 9As shown, in order to improve the automation level and control accuracy, valves 9413 are respectively installed on the surfaces of the two outlet pipes 9411. A water level sensor 9414 is fixedly connected to the inner surface of the first water tank 948. The water level sensor 9414 is electrically connected to the valve 9413 and the water pump 946 respectively. A booster pump 9415 is arranged on the surface of the water guide pipe 947. The booster pump 9415 facilitates the introduction of the coolant into the first water tank 948. The water level sensor 9414 monitors the water level in the first water tank 948 in real time. When the water level is lower than the set value, the sensor sends a signal. After receiving the signal from the water level sensor 9414, the water pump 946 starts and the valve 9413 closes. The coolant is extracted from the water tank 94 and transported to the first water tank 948 until the water level reaches the set value. When the water level sensor 9414 detects that the water level in the first water tank 948 is higher than the set value, the control valve 9413 opens and the water pump 946 stops running, and the flow rate of the coolant can be adjusted to ensure that the cylinder column 941 receives an appropriate amount of coolant.

[0063] By setting up the cooling device and using the water level sensor 9414 to control the water pump 946 and the valve 9413, the coolant in the water tank 94 is introduced into the cooling pipe 944, so as to contact the roller 91, which is convenient for absorbing the heat of the film. At the same time, with the flow of the coolant and the rotation of the roller 91, it can continuously absorb heat, and cooperate with the cooling block 943, which is not only convenient for supporting the cooling pipe 944, but also can increase the contact area with the roller 91 and improve the cooling efficiency.

[0064] Working principle: When in use, the rotation of the output shaft of the drive motor 93 drives the active gear 931 connected thereto. The rotation of the active gear 931 drives the two driven gears 932 meshing with it, thereby driving the two rollers 91 to rotate. With the rotation of the two rollers 91, the pulling and transporting operation of the film is realized.

[0065] During the film transportation process, when the travel switch 86 detects that the film has moved a certain distance, it controls the drive motor 93 to stop running and controls the self-driven slide rail 82 to start. The downward movement of the slider 83 on the self-driven slide rail 82 drives the mounting plate 84 to move downward. The downward movement of the mounting plate 84 drives the pan-tilt camera 81 to approach the film. At the same time, the light source 88 is turned on, so that the light source is above the film. By lighting, it is convenient for the pan-tilt camera 81 to take images above the film, and the film defects can be detected better.

[0066] Meanwhile, the water pump 946 and the valve 9413 are controlled by the water level sensor 9414. When the water level sensor 9414 monitors that the water level in the first water tank 948 is lower than the set value, the water pump 946 pumps out the coolant in the water tank 94 and conveys it to the first water tank 948 through the water conduit 947. When the water level sensor 9414 monitors that the water level in the first water tank 948 is higher than the set value, the valve 9413 is opened, so that the coolant in the first water tank 948 is conveyed to one end of the two cylinder columns 941 through the water outlet pipe 9411. The coolant exchanges heat in the cylinder columns 941, and the coolant enters the cooling pipe 944 through the liquid outlet 945, and cooperates with the cooling block 943. After absorbing the heat of the film, it returns to the second water tank 9410 through the water inlet pipe 9412. The coolant in the second water tank 9410 flows back to the water tank 94 through the return pipe 949 to form a cycle.

[0067] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An inorganic mineral-based continuous casting film production line, comprising an extruder (1) and a twin-screw machine (2), characterized in that: A feeding position (3) is arranged between the extruder (1) and the twin-screw machine (2). A metering pump (4) is fixedly installed at the discharging end of the extruder (1). A casting machine (5) is arranged below the discharging end of the metering pump (4). A thickness gauge (6) is fixedly installed on one side of the casting machine (5). A corona machine (7) is fixedly installed on one side of the thickness gauge (6). A defect detection mechanism is arranged on one side of the corona machine (7). A cooling device is fixedly installed on one side of the defect detection mechanism. A swing frame (10) is fixedly installed on one side of the cooling device. A slitter (11) is fixedly installed on one side of the swing frame (10). A tractor (12) is fixedly installed on one side of the slitter (11). An upper and lower cutter machine (13) is fixedly installed on one side of the tractor (12). A winding machine (14) is fixedly installed on one side of the upper and lower cutter machine (13). Among them, the defect detection mechanism includes a bracket (8). A pan-tilt camera (81) is arranged on the inner surface of the bracket (8). The pan-tilt camera (81) takes images above the film and processes the collected images through image analysis software to determine the size, position and type of defects. Among them, the cooling device includes a frame (9). Two rollers (91), two guide rollers (92), a rotating traction mechanism and a circulating water cooling mechanism are respectively arranged on the surface of the frame (9). The rotating traction mechanism includes a driving motor (93). The output shaft of the driving motor (93) is fixedly sleeved with a driving gear (931) through a coupling. The circulating water cooling mechanism includes a water tank (94) and cylinder columns (941) respectively installed inside the two rollers (91) through bearings. The cooling liquid in the water tank (94) is introduced into the cylinder columns (941) to achieve the cooling effect on the film. The circulating water cooling mechanism further includes a sleeve column (942) fixedly sleeved on the surface of the cylinder column (941). Cooling blocks (943) are arranged on the surface of the sleeve column (942) in an annular array. At the same time, cooling pipes (944) are spirally distributed on the outer surface of the sleeve column (942). A liquid outlet (945) is formed on the surface of the cylinder column (941). The liquid outlet (945) extends out of the sleeve column (942) and is communicated with the cooling pipes (944). The cooling pipes (944) are inserted into the inner walls of the cooling blocks (943). The outer surfaces of the cooling blocks (943) and the cooling pipes (944) are in sliding contact with the inner wall of the roller (91).

2. The continuous production line of an inorganic mineral-based casting film according to claim 1, characterized in that: The defect detection mechanism further includes self-driven slide rails (82) symmetrically embedded in the inner wall of the bracket (8). Sliders (83) are arranged on both of the self-driven slide rails (82). A mounting plate (84) is fixedly connected between the two sliders (83). The pan-tilt camera (81) is installed in the middle of the lower surface of the mounting plate (84).

3. The continuous production line of an inorganic mineral-based casting film according to claim 2, characterized in that: On both sides of the outer surface of the bracket (8), baffles (85) are provided. A travel switch (86) is fixedly installed on the lower surface of the baffle (85), and the travel switch (86) is electrically connected to the self-driven slide rail (82) and the drive motor (93) respectively.

4. An inorganic mineral-based casting film continuous production line according to claim 2, characterized in that: A support plate (87) is fixedly installed on the inner surface of the bracket (8). The support plate (87) is located below the thin film, and a light source (88) is provided on the inner surface of the bracket (8) close to the support plate (87).

5. The continuous production line of an inorganic mineral-based casting film according to claim 4, characterized in that: Air holes (89) are arranged in a rectangular array on the upper surface of the support plate (87) and the lower surface of the mounting plate (84).

6. The continuous production line of an inorganic mineral-based casting film according to claim 1, characterized in that: The rotation traction mechanism further includes driven gears (932) fixedly sleeved on the surfaces of one ends of the two rollers (91) respectively. Both of the driven gears (932) are engaged with the driving gear (931), and the driving gear (931) is installed on one side surface of the frame (9) through a bearing.

7. An inorganic mineral-based casting film continuous production line according to claim 1, characterized in that: A water pump (946) is provided on the outer surface of the water tank (94). The water pump (946) is fixedly communicated with a first water tank (948) through a water pipe (947). A return pipe (949) is fixedly communicated with the surface of the water tank (94). One end of the return pipe (949) is fixedly communicated with a second water tank (9410). The first water tank (948) and the second water tank (9410) are respectively fixedly installed on the outer surfaces of both sides of the frame (9). Two water outlet pipes (9411) are respectively fixedly connected to the lower surface of the first water tank (948). The two water outlet pipes (9411) are respectively fixedly communicated with one ends of the two cylinder columns (941). Two water inlet pipes (9412) are respectively fixedly connected to the upper surface of the second water tank (9410). The two water inlet pipes (9412) are respectively fixedly communicated with the other ends of the two cylinder columns (941).

8. An inorganic mineral-based casting film continuous production line according to claim 7, characterized in that: Valves (9413) are respectively installed on the surfaces of the two water outlet pipes (9411). A water level sensor (9414) is fixedly connected to the inner surface of the first water tank (948). The water level sensor (9414) is electrically connected to the valves (9413) and the water pump (946) respectively. A booster pump (9415) is provided on the surface of the water pipe (947).

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