EVA indoor intelligent transparent film and processing technology thereof

Abstract

The invention discloses an EVA indoor intelligent transparent film. The intelligent transparent film is composed of an ethylene-vinyl acetate copolymer and an intelligent transparent material, wherein the mass ratio of the ethylene-vinyl acetate copolymer is 60-80%; the intelligent light-transmitting material comprises a photochromic material, a thermochromic material and a photoelectric sensor; according to the processing technology of the EVA indoor intelligent transparent film, roller coating equipment for processing the intelligent transparent film is used, and the roller coating equipment comprises a coating storage unit which comprises a coating pool and two liquid supply pipes fixedly communicated with the coating pool; and the dilution touch control unit comprises a hollow cylinder fixedly arranged at the center of the inner wall of the lower side of the coating pool and a floating ring vertically and slidably arranged on the outer side of the hollow cylinder in a sleeving mode. According to the invention, the concentration of the coating in the follow-up coating pool is ensured to be consistent with the concentration of the coating in the initial state of the coating pool, so that the consistency of the front and back coating thicknesses of the same batch of intelligent transparent films is ensured, and the production and processing quality of the intelligent transparent films is improved.

Description

Technical Field

[0001] The invention relates to the technical field of smart transparent film processing, and in particular to an EVA smart transparent film for indoor use and a processing technology thereof. Background Art

[0002] Smart Transparent Film is an innovative product that combines smart materials and transparent film technology. By embedding specific smart functional materials in the film, Smart Transparent Film can achieve dynamic adjustment of transparency under different environmental conditions. It is the fourth generation of highly cost-effective smart transparent film after ordinary transparent, high transparent and clear transparent. EVA indoor smart transparent film is an innovative smart transparent material used to achieve dynamic adjustment of transparency and light transmittance in indoor environments.

[0003] During the production and processing of EVA indoor smart film, especially when the smart film is used as an indoor window film, it is often necessary to spray an anti-UV coating or an anti-scratch coating on the surface of the smart film. In the process of treating the surface of the smart film, a roller coating equipment is required to roller coat the surface. The paint pool is the core component of the roller coating equipment for storing paint liquid and supplying paint. After each use, the paint of the same concentration is often directly added to the paint pool to complete the replenishment of the paint.

[0004] In actual applications, every time the paint pool reaches the bottom, a lot of solid particles in the paint will adhere to the inner wall of the paint pool and will not be coated on the surface of the smart film along with the liquid supply equipment. Adding the same concentration of paint to the paint pool will cause the paint concentration in the paint pool to be higher than the initial paint concentration, which will lead to inconsistent coating thickness of the same batch of smart films before and after, thus affecting the production and processing quality of the smart film. Therefore, it is necessary to design an EVA indoor smart film and its processing technology to solve the above problems. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the problems existing in the existing EVA indoor transparent film and its processing technology, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide an EVA indoor transparent film and its processing technology, which is suitable for solving the problem of inconsistent coating thickness before and after the same batch of transparent films, thereby affecting the production and processing quality of the transparent films.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an EVA indoor intelligent transparent film, the intelligent transparent film is composed of ethylene-vinyl acetate copolymer and intelligent light-transmitting material:

[0009] The mass proportion of the ethylene-vinyl acetate copolymer is 60%-80%;

[0010] The intelligent light-transmitting material comprises a photochromic material, a thermochromic material and a photoelectric sensor, and the photochromic material and the thermochromic material are mixed in a mass ratio of 1:1 and uniformly dispersed in an ethylene-vinyl acetate copolymer matrix.

[0011] A processing technology of EVA indoor transparent film, which uses a roller coating device for processing the transparent film, and the roller coating device includes:

[0012] A paint storage unit, comprising a paint pool and two liquid supply pipes fixedly connected to the paint pool;

[0013] The dilution touch unit comprises a hollow cylinder fixedly arranged at the center of the inner wall of the lower side of the paint pool and a floating ring vertically slidably sleeved on the outer side of the hollow cylinder, a lifting plate is arranged in the hollow cylinder, the upper side wall of the lifting plate and the upper side wall of the floating ring are fixedly connected by a plurality of evenly distributed light connecting ropes, and a plurality of pairs of guide wheels corresponding to the light connecting ropes are fixedly arranged at the upper end of the hollow cylinder, and a downward elastic touch switch is fixedly arranged at the opening of the upper end of the hollow cylinder;

[0014] The concentration compensation unit includes a hollow liquid replenishing frame arranged at the upper part of the inner cavity of the coating pool and a plurality of spray heads fixedly arranged at the lower end of the side wall of the hollow liquid replenishing frame and connected with the hollow liquid replenishing frame. The two side walls of the coating pool are respectively fixedly connected with temporary liquid storage boxes, and the temporary liquid storage boxes are connected with the hollow liquid replenishing frame through a telescopic hose. A water pump connected with the telescopic hose is fixedly installed on the hollow liquid replenishing frame, and the elastic touch switch is used to control the water pump to start.

[0015] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, the roller coating equipment also includes a pool wall cleaning unit, which includes two support arms respectively fastened to the upper part of the side walls at both ends of the paint pool, and the lower end of each support arm is rotatably connected to the lower inner wall of the paint pool through a coarse-grained reciprocating screw, the two coarse-grained reciprocating screws both penetrate the hollow liquid replenishing frame and are threadedly connected to the hollow liquid replenishing frame, and the top of each coarse-grained reciprocating screw rod penetrates the support arm fixed sleeve upward and is provided with a transmission sprocket, and the two transmission sprockets are connected by a transmission chain, a stepper motor is fixedly installed on one of the support arms, the output shaft of the stepper motor is fixedly connected to the top of one of the coarse-grained reciprocating screw rods, and the elastic touch switch is electrically connected to the stepper motor, and the outer wall fixed sleeve of the hollow liquid replenishing frame is provided with a wiping sponge, and the wiping sponge is located above multiple spray heads.

[0016] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, a cleaning frame corresponding to the wiping sponge is fixedly installed on the upper part of the inner wall of the paint pool, and the horizontal height of the upper side wall of the cleaning frame away from the inner wall of the paint pool is higher than the horizontal height of the other side of the cleaning frame.

[0017] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, wherein: liquid storage tanks are fixedly installed on both sides of the paint pool, the liquid storage tanks are fixedly connected with the temporary liquid storage box through an infusion tube, and a metering pump connected with the infusion tube is fixedly installed on the liquid storage tank, side ears are fixedly installed on the support arm, and the lower end of the side ears is fixedly connected with an elastic squeezing switch for controlling the metering pump, and a viewing window is inlaid on the side wall of the temporary liquid storage box.

[0018] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, each of the support arms is configured to be bent, and the support arm is fastened to the paint pool by corresponding fastening bolts.

[0019] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, wherein: the lower side wall of the floating ring is provided with a receiving groove opening downward, and a concave roller is rotatably connected in the receiving groove and abuts against the outer side wall of the hollow cylinder.

[0020] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, wherein: the upper opening of the hollow cylinder is fixedly connected to a top plate, and the elastic touch switch is fixedly installed at the center of the lower side wall of the top plate.

[0021] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, there are multiple groups of evenly distributed convex rollers rotatably installed at the edge of the lifting plate, the side wall of each convex roller is against the inner wall of the hollow cylinder, and the upper side wall of the lifting plate is fixedly installed with an extrusion protrusion corresponding to the elastic touch switch.

[0022] As a preferred solution of the processing technology of the EVA indoor transparent film described in the present invention, the specific process when using the above-mentioned roller coating equipment is as follows:

[0023] S1: When the paint in the paint pool drops to the amount that needs to be replenished, the float ring drops to the lowest point, the lifting plate touches the elastic touch switch upward, and the elastic touch switch starts the water pump and the stepper motor in turn;

[0024] S2: The water pump draws a quantitative amount of diluent in the temporary liquid storage box into the hollow liquid replenishing frame and sprays and cleans the particles attached to the inner wall of the paint pool through multiple spray heads, completing the replenishment of the quantitative diluent in the paint pool;

[0025] S3: After the hollow cleaning frame completes an up and down reciprocating process, the elastic squeezing switch will start the quantitative pump to quantitatively replenish the diluent in the temporary liquid storage box to ensure that the paint concentration in the paint pool is consistent with the initial paint concentration.

[0026] The beneficial effects of the present invention are as follows: when the paint in the paint pool drops to the amount that needs to be replenished, the elastic touch switch controls the water pump to start, and the water pump draws the diluent in the temporary liquid storage box into the hollow liquid replenishing frame, and replenishes it into the paint pool through multiple spray heads, thereby ensuring that the concentration of the paint in the paint pool at this time is consistent with the concentration of the paint in the initial state of the paint pool, thereby ensuring that the coating thickness of the same batch of Zhitou film is consistent before and after, and improving the production and processing quality of Zhitou film;

[0027] When the elastic touch switch is turned on, it will control the hollow liquid replenishing frame through the stepper motor to complete a complete up and down movement process. During its descent, the diluent can replenish the diluent through multiple groups of spray heads and at the same time flush and clean the paint particles attached to the inner wall of the paint pool. The wiping sponge fixed at the edge of the hollow liquid replenishing frame can clean and wipe the inner wall of the paint pool, effectively solving the defect that the paint is easily attached to the inner wall of the paint pool, resulting in inconsistent concentration of the paint before and after the paint pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0029] Figure 1 This is a schematic diagram of the overall structure of a roller coating device for processing an EVA indoor transparent film proposed by the present invention;

[0030] Figure 2 A schematic diagram of the dilution touch unit structure of a processing technology of an EVA indoor transparent film proposed by the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of a concentration compensation unit of a processing technology of an EVA indoor transparent film proposed by the present invention;

[0032] Figure 4 A schematic diagram of the coordinated structure of a coating pool (101), a liquid storage tank and a hollow cylinder in a processing technology of an EVA indoor transparent film proposed by the present invention;

[0033] Figure 5This is a schematic diagram of the structure of a pool wall cleaning unit of a processing technology of an EVA indoor transparent film proposed by the present invention;

[0034] Figure 6 A schematic diagram of the coordination structure of a cleaning frame, a hollow liquid replenishing frame and a wiping sponge in a processing technology of an EVA indoor transparent film proposed by the present invention;

[0035] Figure 7 A schematic diagram of the matching structure of a floating ring and a concave roller in a processing technology of an EVA indoor transparent film proposed by the present invention;

[0036] Figure 8 The present invention is a schematic diagram of the implementation steps of a processing technology for an EVA indoor transparent film.

[0037] Description of the drawings: 100 paint storage unit, 101 paint pool, 102 liquid supply pipe, 200 dilution touch unit, 201 hollow cylinder, 202 floating ring, 203 concave roller, 204 lifting plate, 205 convex roller, 206 lightweight connecting rope, 207 guide wheel, 208 top plate, 209 elastic touch switch, 300 concentration compensation unit, 301 hollow liquid replenishment frame, 302 spray head, 303 temporary liquid storage box, 304 telescopic hose, 305 water pump, 306 field of view window, 307 liquid storage tank, 308 infusion tube, 309 metering pump, 310 side ear, 311 elastic squeezing switch, 400 pool wall cleaning unit, 401 support arm, 402 fastening bolt, 403 coarse-grained reciprocating screw, 404 transmission sprocket, 405 transmission chain, 406 stepping motor, 407 wiping sponge, 408 cleaning frame. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0042] Embodiment 1

[0043] Reference Figure 1-6 and Figure 8 , which is an embodiment of the present invention, provides an EVA indoor intelligent transparent film, which is composed of ethylene-vinyl acetate copolymer and intelligent light-transmitting material:

[0044] The mass percentage of ethylene-vinyl acetate copolymer is 60%-80%;

[0045] The intelligent light-transmitting material includes a photochromic material, a thermochromic material and a photoelectric sensor, and the photochromic material and the thermochromic material are mixed in a mass ratio of 1:1 and uniformly dispersed in an ethylene-vinyl acetate copolymer matrix; the photochromic and thermochromic materials are mixed in a 1:1 ratio in this scheme, which can enable the film to show different light transmittance and color tone changes under different lighting conditions and temperature environments.

[0046] A processing technology for EVA indoor transparent film uses a roller coating device for processing the transparent film. The roller coating device includes: a paint storage unit 100, a dilution touch unit 200, a concentration compensation unit 300 and a pool wall cleaning unit 400.

[0047] The paint storage unit 100 includes a paint pool 101 and two liquid supply pipes 102 fixedly connected to the paint pool 101;

[0048] Secondly, the dilution touch unit 200 includes a hollow cylinder 201 fixedly arranged at the center of the inner wall of the lower side of the paint pool 101 and a floating ring 202 vertically slidably sleeved on the outer side of the hollow cylinder 201, a lifting plate 204 is arranged in the hollow cylinder 201, and a plurality of groups of evenly distributed convex rollers 205 are rotatably installed at the edge of the lifting plate 204, and the side wall of each convex roller 205 is against the inner wall of the hollow cylinder 201, and an extrusion protrusion corresponding to the elastic touch switch 209 is fixedly installed on the upper side wall of the lifting plate 204. The setting of the convex roller 205 can guide and limit the lifting plate 204 during the lifting and lowering process in the hollow cylinder 201, while the influence of the friction between the inner wall of the hollow cylinder 201 and the lifting plate 204 can be ignored. The setting of the extrusion protrusion is convenient for the lifting plate 204 to rise to the top when it rises , touch to open the elastic touch switch 209, the upper side wall of the lifting plate 204 is fixedly connected to the upper side wall of the floating ring 202 by a plurality of evenly distributed lightweight connecting ropes 206, and a plurality of pairs of guide wheels 207 corresponding to the lightweight connecting ropes 206 are fixedly arranged on the upper end of the hollow cylinder 201, and a downward elastic touch switch 209 is fixedly arranged at the opening of the upper end of the hollow cylinder 201. In the present invention, the elastic touch switch 209 can control the water pump 305 to start, and control the hollow liquid replenishing frame 301 through the stepping motor 406 to complete a reciprocating cleaning and dilution process, and the upper end opening of the hollow cylinder 201 is fixedly connected with a top plate 208, and the elastic touch switch 209 is fixedly installed at the center of the lower side wall of the top plate 208. Through the setting of the top plate 208, the elastic touch switch 209 can be stably installed;

[0049] Secondly, the concentration compensation unit 300 includes a hollow liquid replenishing frame 301 arranged at the upper part of the inner cavity of the paint pool 101 and a plurality of spray heads 302 fixedly arranged at the lower end of the side wall of the hollow liquid replenishing frame 301 and connected to the hollow liquid replenishing frame 301. Temporary liquid storage boxes 303 are fixedly connected to the two side walls of the paint pool 101 respectively. The temporary liquid storage box 303 is used to store diluent, which can be water or an organic solvent, and is used to adjust the paint concentration in the paint pool 101. The temporary liquid storage box 303 is connected to the hollow liquid replenishing frame 301 through a telescopic hose 304. A water pump 305 connected to the telescopic hose 304 is fixedly installed on the hollow liquid replenishing frame 301. The water pump 305 is used to transport all the diluent in the temporary liquid storage box 303 into the hollow liquid replenishing frame 301, and spray it into the paint pool 101 through a plurality of spray heads 302. The elastic touch switch 209 is used to control the water pump 305 to start.

[0050] Furthermore, liquid storage tanks 307 are fixedly installed on both sides of the paint pool 101. The liquid storage tanks 307 are fixedly connected to the temporary liquid storage box 303 through an infusion tube 308, and a metering pump 309 connected to the infusion tube 308 is fixedly installed on the liquid storage tank 307. The metering pump 309 is a kind of water pump. It is a pump that can accurately control the delivery flow rate. It is widely used in industrial fields that require accurate delivery of liquids or chemicals, such as chemical processing, pharmaceuticals, food processing, sewage treatment, etc. It is widely used in real life. Therefore, its working principle is not described in detail here. Side ears 310 are fixedly installed on the support arm 401. The side ears 310 0 is fixedly connected to the lower end thereof with an elastic squeeze switch 311 for controlling the metering pump 309, and a viewing window 306 is inlaid on the side wall of the temporary liquid storage box 303. The setting of the viewing window 306 is convenient for the staff to observe the amount of the diluent in the temporary liquid storage box 303. Through the setting of the elastic squeeze switch 311, after the diluent in the temporary liquid storage box 303 is used up each time and the hollow liquid replenishing frame 301 completes a reciprocating cleaning process, it will control the metering pump 309 to start, and deliver a certain amount of diluent to the temporary liquid storage box 303, so that the diluent can be replenished again during the next replenishment of paint to compensate for the paint concentration in the paint pool 101.

[0051] Furthermore, the pool wall cleaning unit 400 includes two support arms 401 that are respectively fastened to the upper parts of the side walls at both ends of the paint pool 101, each support arm 401 is configured to be bent, and the support arm 401 is fastened to the paint pool 101 by corresponding fastening bolts 402. The setting of the fastening bolts 402 facilitates the disassembly of the support arm 401, and the lower end of each support arm 401 is rotatably connected to the lower inner wall of the paint pool 101 through a coarse-grained reciprocating screw rod 403, the two coarse-grained reciprocating screw rods 403 both penetrate the hollow liquid replenishment frame 301 and are threadedly connected to the hollow liquid replenishment frame 301, and the top of each coarse-grained reciprocating screw rod 403 penetrates the support arm 401 upward and is fixedly sleeved with a transmission sprocket 404, and the two transmission sprockets 404 are transmission-connected by a transmission chain 405, and a stepper motor 406 is fixedly installed on one of the support arms 401, and the stepper motor 406 is a kind of electric pulse The motor converts the pulse signal into the corresponding angular displacement or linear displacement. Every time a pulse signal is input, the rotor rotates an angle or moves forward one step. In the present invention, each time the elastic touch switch is turned on, it will control the stepper motor 406 to drive the hollow liquid replenishing frame 301 to complete a complete cleaning process up and down. The output shaft of the stepper motor 406 is fixedly connected to the top of one of the coarse-grained reciprocating screws 403. The thread groove of the coarse-grained reciprocating screw 403 is wider. Even if a small amount of paint particles are attached, it will not affect the normal transmission of the hollow liquid replenishing frame 301 and the coarse-grained reciprocating screw 403. In actual application, the connection method between the two can also be replaced by a connection structure of a ball screw and a ball screw, and the elastic touch switch 209 is electrically connected to the stepper motor 406. The outer wall of the hollow liquid replenishing frame 301 is fixedly sleeved with a wiping sponge 407, and the wiping sponge 407 is located above the multiple spray heads 302.

[0052] Finally, a cleaning frame 408 corresponding to the wiping sponge 407 is fixedly installed on the upper part of the inner wall of the paint pool 101. The horizontal height of the upper side wall of the cleaning frame 408 away from the inner wall of the paint pool 101 is higher than the horizontal height of the other side of the cleaning frame 408. Through the setting of the cleaning frame 408, each time the hollow liquid replenishing frame 301 rises to the top, the wiping sponge 407 set thereon can be scraped and cleaned once by the cleaning frame 408, which effectively ensures the cleaning wiping effect of the wiping sponge 407 on the inner wall of the paint pool 101. The cleaning frame 408 is set to be inclined, which effectively solves the defect that the paint liquid is easily accumulated on the upper side wall of the cleaning frame 408.

[0053] The specific process when using the upper roller coating equipment is as follows:

[0054] S1: When the paint in the paint pool 101 drops to the amount that needs to be replenished, the float 202 drops to the lowest point, the lifting plate 204 touches the elastic touch switch 209 upward, and the elastic touch switch 209 starts the water pump 305 and the stepping motor 406 in turn;

[0055] S2: The water pump 305 draws a fixed amount of diluent in the temporary liquid storage box 303 into the hollow liquid replenishing frame 301 and sprays and cleans the particles attached to the inner wall of the coating pool 101 through multiple spray heads 302, thereby completing the replenishment of the fixed amount of diluent in the coating pool 101;

[0056] S3: The hollow cleaning frame 408 completes an up and down reciprocating process, and the elastic squeezing switch 311 starts the quantitative pump 309 to quantitatively supplement the diluent to the temporary liquid storage box 303 to ensure that the paint concentration of the paint pool 101 is consistent with the initial paint concentration.

[0057] Embodiment 2

[0058] Reference Figure 7 , which is different from the first embodiment in that: a downwardly opening receiving groove is provided on the lower side wall of the floating ring 202, and a concave roller 203 is rotatably connected in the receiving groove to abut against the outer wall of the hollow cylinder 201; the arrangement of multiple concave rollers 203 greatly reduces the friction between the floating ring 202 and the outer wall of the hollow cylinder 201, and can guide and limit the lifting process of the floating ring 202. The receiving groove opens downward, which effectively solves the defect that the paint is easily attached to the receiving groove.

[0059] During use, when the paint in the paint pool 101 drops to the amount that needs to be replenished, the buoyancy of the paint on the float 202 reaches a minimum value, and the gravity of the float 202 itself is greater than the sum of the gravity of the lifting plate 204 and the buoyancy of the paint on the float 202. The lifting plate 204 is pulled up to the top by the lightweight connecting rope 205, and the elastic touch switch 209 is turned on, which controls the water pump 305 to start. The water pump 305 draws the diluent in the temporary liquid storage box 303 into the hollow liquid replenishing frame 301, and replenishes it into the paint pool 101 through multiple spray heads 302. At this time, the paint pool 101 is replenished. Filled with paint of the same concentration, after being diluted by the diluent, the concentration of the paint in the paint pool 101 at this time is guaranteed to be consistent with the concentration of the paint in the initial state of the paint pool 101, thereby ensuring that the coating thickness of the same batch of Zhitou films is consistent before and after, and improving the production and processing quality of Zhitou films. As the amount of paint in the paint pool 101 increases, it will gradually immerse the float 202. At this time, the buoyancy of the paint on the float 202 reaches the maximum value, and the sum of the upward buoyancy of the paint on the float 202 and the gravity of the lifting plate 204 itself is greater than the gravity of the float 202, the float 202 rises, and the elastic touch switch 209 is closed;

[0060] When the elastic touch switch 209 is turned on, it will drive the coarse-grained reciprocating screw 403 to rotate through the stepping motor 406, and the hollow liquid replenishing frame 301 threadedly connected to the coarse-grained reciprocating screw 403 will complete a complete up and down movement process. During its descent, the diluent can be replenished through multiple groups of spray heads 302 while the paint particles attached to the inner wall of the paint pool 101 can be flushed and cleaned. The wiping sponge 407 fixedly arranged at the edge of the hollow liquid replenishing frame 301 can clean and wipe the inner wall of the paint pool 101, effectively solving the defect that the paint is easily attached to the inner wall of the paint pool 101, resulting in inconsistent concentration of the paint in the paint pool 101 before and after, and at the same time, the inner wall of the paint pool 101 can be cleaned during each replenishment of the paint. When the hollow liquid replenishing frame 301 rises and resets to the initial state, it will squeeze the elastic squeezing switch 311, which will start the quantitative pump 309 to deliver a quantitative diluent to the temporary liquid storage box 303.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An EVA indoor transparent film, characterized in that: The intelligent light-transmitting film is composed of ethylene-vinyl acetate copolymer and intelligent light-transmitting material: The mass proportion of the ethylene-vinyl acetate copolymer is 60%-80%; The intelligent light-transmitting material comprises a photochromic material, a thermochromic material and a photoelectric sensor, and the photochromic material and the thermochromic material are mixed in a mass ratio of 1:1 and uniformly dispersed in an ethylene-vinyl acetate copolymer matrix.

2. A processing technology for EVA indoor transparent film, which uses a roller coating device for processing transparent film, characterized in that: The roller coating equipment comprises: A paint storage unit (100), comprising a paint pool (101) and two liquid supply pipes (102) fixedly connected to the paint pool (101); A dilution touch unit (200), comprising a hollow cylinder (201) fixedly arranged at the center of the inner wall of the lower side of a coating pool (101) and a floating ring (202) vertically slidably sleeved on the outer side of the hollow cylinder (201), wherein a lifting plate (204) is arranged inside the hollow cylinder (201), and the upper side wall of the lifting plate (204) and the upper side wall of the floating ring (202) are fixedly connected by a plurality of evenly distributed light connecting ropes (206), and a plurality of pairs of guide wheels (207) corresponding to the light connecting ropes (206) are fixedly arranged at the upper end of the hollow cylinder (201), and a downward elastic touch switch (209) is fixedly arranged at the upper opening of the hollow cylinder (201); A concentration compensation unit (300) comprises a hollow liquid replenishing frame (301) arranged at the upper part of the inner cavity of a coating pool (101) and a plurality of spray heads (302) fixedly arranged at the lower end of the side wall of the hollow liquid replenishing frame (301) and connected to the hollow liquid replenishing frame (301); temporary liquid storage boxes (303) are fixedly connected to the two side walls of the coating pool (101), respectively; the temporary liquid storage box (303) is connected to the hollow liquid replenishing frame (301) via a telescopic hose (304); a water pump (305) connected to the telescopic hose (304) is fixedly installed on the hollow liquid replenishing frame (301); and the elastic touch switch (209) is used to control the water pump (305) to be turned on.

3. The processing technology of the EVA indoor transparent film according to claim 2 is characterized by: The roller coating device further comprises a pool wall cleaning unit (400), which comprises two support arms (401) respectively fixedly mounted on the upper parts of the side walls at both ends of the paint pool (101), the lower end of each support arm (401) being rotatably connected to the lower inner wall of the paint pool (101) via a coarse-grained reciprocating screw rod (403), the two coarse-grained reciprocating screw rods (403) both penetrate the hollow liquid replenishing frame (301) and are threadedly connected to the hollow liquid replenishing frame (301), and the top end of each coarse-grained reciprocating screw rod (403) is upwardly penetrated through the support arm (401) and fixed with a transmission chain. The support arms (401) are provided with a stepper motor (406), the output shaft of the stepper motor (406) is fixedly connected to the top of one of the coarse-grained reciprocating screw rods (403), and the elastic touch switch (209) is electrically connected to the stepper motor (406). The outer wall of the hollow liquid replenishing frame (301) is fixedly sleeved with a wiping sponge (407), and the wiping sponge (407) is located above the multiple spray heads (302).

4. The processing technology of the EVA indoor transparent film according to claim 3 is characterized by: A cleaning frame (408) corresponding to the wiping sponge (407) is fixedly mounted on the upper portion of the inner wall of the paint pool (101), and the level of the upper side wall of the cleaning frame (408) away from the inner wall of the paint pool (101) is higher than the level of the other side of the cleaning frame (408).

5. The processing technology of the EVA indoor transparent film according to claim 3 is characterized by: Liquid storage tanks (307) are fixedly installed on both sides of the paint pool (101), and the liquid storage tank (307) is fixedly connected to the temporary liquid storage box (303) through an infusion tube (308), and a quantitative pump (309) connected to the infusion tube (308) is fixedly installed on the liquid storage tank (307), and a side ear (310) is fixedly installed on the support arm (401), and an elastic squeeze switch (311) for controlling the quantitative pump (309) is fixedly connected to the lower end of the side ear (310), and a viewing window (306) is inlaid on the side wall of the temporary liquid storage box (303).

6. The processing technology of the EVA indoor transparent film according to claim 3 is characterized by: Each of the support arms (401) is configured to be bent, and the support arm (401) is fastened to the paint pool (101) via corresponding fastening bolts (402).

7. The processing technology of the EVA indoor transparent film according to claim 2 is characterized by: The lower side wall of the floating ring (202) is provided with a receiving groove opening downward, and a concave roller (203) is rotatably connected in the receiving groove and abuts against the outer side wall of the hollow cylinder (201).

8. The processing technology of the EVA indoor transparent film according to claim 2 is characterized by: The upper opening of the hollow cylinder (201) is fixedly connected to a top plate (208), and the elastic touch switch (209) is fixedly installed at the center of the lower side wall of the top plate (208).

9. The processing technology of the EVA indoor transparent film according to claim 2 is characterized by: A plurality of groups of evenly distributed convex rollers (205) are rotatably mounted on the edge of the lifting plate (204), the side wall of each convex roller (205) abuts against the inner wall of the hollow cylinder (201), and an extrusion protrusion corresponding to the elastic touch switch (209) is fixedly mounted on the upper side wall of the lifting plate (204).

10. The processing technology of the EVA indoor transparent film according to claim 2, characterized in that: The specific process when using the above-mentioned roller coating equipment is as follows: S1: When the paint in the paint pool (101) drops to the amount that needs to be replenished, the float ring (202) drops to the lowest point, the lifting plate (204) touches the elastic touch switch (209) upward, and the elastic touch switch (209) starts the water pump (305) and the stepping motor (406) in sequence; S2: The water pump (305) draws a fixed amount of diluent in the temporary liquid storage box (303) into the hollow liquid replenishing frame (301) and sprays and cleans the particles attached to the inner wall of the coating pool (101) through a plurality of spray heads (302), thereby completing the replenishment of the fixed amount of diluent in the coating pool (101); S3: After the hollow cleaning frame (408) completes an up-and-down reciprocating process, the elastic squeeze switch (311) activates the quantitative pump (309) to quantitatively replenish the diluent in the temporary liquid storage box (303), thereby ensuring that the paint concentration in the paint pool (101) remains consistent with the initial paint concentration.

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