An integrated device for the preparation and drying of composite membranes

Abstract

This utility model discloses an integrated device for the preparation and drying of composite films. The integrated device includes: a drying adsorption component, a spraying adsorption component, and a control component; the drying adsorption component includes a heating platform and an adsorption platform; the heating platform supports the substrate and heats the sprayed substrate through a built-in heating device; the adsorption platform is provided with a first vacuum adsorption hole for adsorbing the intermediate reinforcing layer of the composite film and fixing it to the substrate; the control component includes an electric push rod device and a controller, the electric push rod device being connected to the spraying adsorption component and used to move the spraying adsorption component to the spraying or adsorption site. By using this device to fabricate composite films, wet forming and heat treatment shaping functions are integrated, realizing the integration of preparation and drying.

Description

Technical Field

[0001] This utility model relates to the field of proton exchange membrane manufacturing technology, specifically to an integrated device for the preparation and drying of composite membranes. Background Technology

[0002] Proton exchange membrane composite films are widely used in food packaging, electronic devices, and biomedicine due to their excellent comprehensive performance. Traditional composite film preparation typically employs a step-by-step method, first creating a wet film through coating or casting, then transferring it to a separate drying unit for curing. This intermittent production process has inherent drawbacks such as cumbersome procedures, high energy consumption, and long production cycles. More importantly, the wet film is highly susceptible to surface defects, interfacial delamination, or microstructural damage during the transfer process due to uneven tension or external contamination, severely impacting the final performance and yield of the composite film. Therefore, developing a highly efficient equipment capable of continuous, integrated production has become a key technological bottleneck for improving composite film quality and production efficiency. Against this backdrop, the development of a novel integrated device for composite film fabrication and drying, combining wet forming and heat treatment functions, is particularly urgent. Utility Model Content

[0003] To address the problems existing in the prior art, this invention provides an integrated device for the preparation and drying of composite membranes. By using this device to prepare composite membranes in the field of proton exchange membranes, it integrates wet forming and heat treatment shaping functions, achieving integrated preparation and drying of composite membranes.

[0004] This utility model provides an integrated device for the preparation and drying of composite membranes, which includes: a drying adsorption component, a spraying adsorption component, and a control component.

[0005] The drying and adsorption assembly includes a heating platform and an adsorption platform. The heating platform is fastened to the adsorption platform through a groove in the adsorption platform. The heating platform is used to support the substrate and heats the coated substrate through a built-in heating device. A first vacuum adsorption hole is provided on the adsorption platform for adsorbing the intermediate reinforcing layer of the composite film and fixing it to the substrate. The first vacuum adsorption hole is located around the heating platform.

[0006] The spraying and adsorption assembly includes an adsorption spraying plate, which is provided with a second vacuum adsorption hole and a spraying nozzle; the second vacuum adsorption hole is used to adsorb the intermediate reinforcement layer of the composite film; the spraying nozzle is used to spray the coating solution onto the substrate;

[0007] The control component includes an electric push rod device and a controller. The electric push rod device is connected to the spray adsorption component and is used to move the spray adsorption component to the spraying site or adsorption site. The controller is electrically connected to the electric push rod device, the drying adsorption component and the spray adsorption component respectively, and is used to control the movement of the electric push rod device, the heating and vacuum adsorption of the drying adsorption component, and the spraying and vacuum adsorption of the spray adsorption component.

[0008] In one or more embodiments, the heating platform is fastened to the adsorption platform by screws in the grooves of the adsorption platform.

[0009] In one or more embodiments, the heating device is connected to the heating platform via a built-in snap-fit ​​or a built-in groove.

[0010] In one or more embodiments, the number of the first vacuum adsorption pores is at least two, arranged in a regular array, with a density of 1-6 vacuum adsorption pores per square centimeter.

[0011] In one or more embodiments, the pore size of the first vacuum adsorption pore is 0.5-3 mm.

[0012] In one or more embodiments, the nozzle diameter of the spray nozzle is 1.3-1.4 mm.

[0013] In one or more embodiments, the spray width of the spray nozzle is 200-300 mm.

[0014] In one or more embodiments, the number of the second vacuum adsorption pores is at least two, arranged in a regular array, with a density of 1-6 vacuum adsorption pores per square centimeter.

[0015] In one or more embodiments, the pore size of the second vacuum adsorption pore is 0.5-3 mm.

[0016] In one or more embodiments, the adsorption spray plate of the spray adsorption assembly is connected to the electric push rod device of the control assembly; the connection between the adsorption spray plate and the electric push rod device is a fixed connection or an integrated connection.

[0017] In one or more embodiments, the electric actuator includes a moving motor, a stepper motor, a commutator, and an electric telescopic rod; the moving motor is connected to a controller via a control line; a stepper motor is mounted on the moving motor, a commutator is mounted on the stepper motor, and the stepper motor is connected to the controller; an electric telescopic rod is provided at the front end of the moving motor, and the other end of the electric telescopic rod is connected to a spray adsorption assembly; the moving motor moves under the drive of the stepper motor; the commutator changes the running direction of the moving motor; the controller controls the moving motor to move to the spray or adsorption point, the electric telescopic rod extends and retracts, driving the spray adsorption assembly to perform spraying or adsorption and placement of the intermediate reinforcement layer.

[0018] In one or more embodiments, the control assembly further includes a gantry, solution piping, and control line piping;

[0019] Gantry cranes are used to support solution pipelines, control line pipelines, electric actuators, and controllers;

[0020] The solution pipeline is located in the built-in groove of the gantry; one end of the solution pipeline is connected to the coating solution device, and the other end is connected to the spray nozzle of the spray adsorption component, for conveying the coating solution in the coating solution device to the spray nozzle;

[0021] The control line is located in the built-in groove of the gantry; one end of the control line is connected to the controller, and the other end is connected to the electric push rod device, the drying adsorption component and the spraying adsorption component respectively.

[0022] In one or more embodiments, the controller is electrically connected to the moving motor of the electric linear actuator via a control line.

[0023] In one or more embodiments, the controller is electrically connected to the heating device of the drying adsorption assembly and the first vacuum adsorption orifice via a control line.

[0024] In one or more embodiments, the controller is electrically connected to the spray nozzle and the second vacuum adsorption hole of the spray adsorption assembly via a control line.

[0025] In one or more embodiments, the apparatus further includes a placement component for placing the cut intermediate reinforcement layer so that it can be adsorbed by the spray adsorption component. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the integrated device for preparing and drying the composite membrane in Example 1.

[0027] Figure 2 This is a schematic diagram of the drying and adsorption assembly in Example 1.

[0028] Figure 3 This is a schematic diagram of the spray adsorption assembly in Example 1.

[0029] Explanation of reference numerals in the attached figures:

[0030] Drying adsorption assembly 100, heating platform 110, adsorption platform 120, first vacuum adsorption hole 121, placement assembly 200, spray adsorption assembly 300, spray nozzle 310, second vacuum adsorption hole 320, control assembly 400, solution pipeline 410, control line pipeline 420, gantry 430, moving motor 440, stepper motor 441, commutator 442, electric telescopic rod 443, controller 450. Detailed Implementation

[0031] To enable those skilled in the art to understand the features and effects of this utility model, the terms and expressions mentioned herein are explained and defined in general terms below. Unless otherwise specified, all technical and scientific terms used herein have the common meaning understood by those skilled in the art regarding this utility model, and in case of conflict, the definitions herein shall prevail.

[0032] The theories or mechanisms described and disclosed herein, whether right or wrong, should not limit the scope of this invention in any way; that is, the content of this invention can be implemented without being limited by any specific theory or mechanism.

[0033] In this document, the terms “contains,” “includes,” “containing,” and similar terms encompass the meanings of “basically composed of” and “composed of.” For example, when this document discloses “A contains B and C,” “A is basically composed of B and C” and “A is composed of B and C” should be considered as having been disclosed in this document.

[0034] In this document, all features defined in the form of numerical ranges or percentage ranges, such as numerical values, quantities, contents, and concentrations, are for the sake of brevity and convenience only. Accordingly, descriptions of numerical ranges or percentage ranges should be considered as covering and specifically disclosing all possible sub-ranges and individual numerical values ​​(including integers and fractions) within those ranges.

[0035] Unless otherwise specified, percentages refer to mass percentages and proportions refer to mass ratios in this article.

[0036] In this document, when describing embodiments or examples, it should be understood that it is not intended to limit the present invention to those embodiments or examples. Rather, all alternatives, modifications, and equivalents of the methods and materials described herein are covered within the scope defined by the claims.

[0037] For the sake of brevity, not all possible combinations of the technical features in each implementation scheme or embodiment are described herein. Therefore, as long as there is no contradiction in the combination of these technical features, the technical features in each implementation scheme or embodiment can be combined arbitrarily, and all possible combinations should be considered within the scope of this specification.

[0038] This invention provides an integrated device for the preparation and drying of composite membranes, which can adsorb relatively thin intermediate reinforcing layers in the field of proton exchange membranes, and perform coating solution spraying and drying. It integrates wet forming and heat treatment shaping functions, realizing the integrated preparation and drying of composite membranes.

[0039] In this invention, the composite film typically includes, but is not limited to, a first coating layer, an intermediate reinforcing layer, and a second coating layer arranged sequentially. During the preparation process, the first coating layer is usually applied to a substrate layer, and then the intermediate reinforcing layer and the second coating layer are sequentially arranged on top of the first coating layer.

[0040] In this invention, the coating solutions used for the first and second coatings can be coating solution formulations conventionally used in the art for preparing proton exchange membranes.

[0041] The material of the intermediate reinforcing layer suitable for this invention can be one or more of expanded polytetrafluoroethylene (EPTFE), polyvinylidene fluoride (PVDF), and perfluorosulfonic acid resin (PFSA). In some embodiments, the thickness of the intermediate reinforcing layer is 5-32 μm, such as 6 μm, 8 μm, 15 μm, 20 μm, or 30 μm.

[0042] The substrate layer suitable for this utility model can be one or more of PEN (polyethylene naphthalate), PI (polyimide) and PET (polyethylene terephthalate).

[0043] In this invention, the integrated device for preparing and drying the composite membrane includes a drying adsorption component, a placement component, a spraying adsorption component, and a control component.

[0044] The drying adsorption assembly is used to hold the substrate and dry the coating solution. The assembly includes a heating platform and an adsorption platform, with the heating platform securely connected to the adsorption platform via grooves in the adsorption platform. In some embodiments, the heating platform is secured to the adsorption platform via screws within the grooves. The heating platform supports the substrate and dries the coated substrate using a built-in heating device. In some embodiments, the heating device is connected to the heating platform via built-in snap-fits or grooves. The adsorption platform has several first vacuum adsorption holes for adsorbing and fixing the intermediate reinforcement layer onto the substrate using negative pressure. These first vacuum adsorption holes are located around the heating platform. In some embodiments, the first vacuum adsorption holes on the adsorption platform are arranged in a regular array with a density of 1-6 holes per square centimeter. In some embodiments, the pore size of the vacuum adsorption holes is 0.5-3 mm. The inventors have found that setting the first vacuum adsorption hole diameter to greater than 3 mm causes deformation when adsorbing thinner EPTFE layers, resulting in uneven film formation. If the first vacuum adsorption pore size is set to less than 0.5 mm, the adsorption force will be insufficient for adsorbing thicker EPTFE.

[0045] The spray adsorption assembly is used for spraying coating solutions and adsorbing intermediate reinforcement layers. The assembly includes an adsorption spray plate with spray nozzles connected to solution pipelines and several second vacuum adsorption holes. The spray nozzles can be arranged in a staggered pattern. In some embodiments, the nozzle diameter is 1.3-1.4 mm, and the spray width is 200-300 mm. The second vacuum adsorption holes can be arranged in a regular array with a density of 1-6 holes per square centimeter. In some embodiments, the pore size of the second vacuum adsorption holes is 0.5-3 mm. If the pore size is greater than 3 mm, it will cause deformation when adsorbing thinner EPTFE layers, resulting in uneven film formation. If the pore size is less than 0.5 mm, the adsorption force will be insufficient for adsorbing thicker EPTFE layers.

[0046] In this article, "several vacuum adsorption pores" means that the number of vacuum adsorption pores is at least one and the number meets the adsorption requirements.

[0047] In some embodiments, the integrated composite membrane preparation and drying device of this invention further includes a negative pressure generating component, which is connected to the first vacuum adsorption port and the second vacuum adsorption port to provide negative pressure to the first vacuum adsorption port and the second vacuum adsorption port. The available negative pressure generating components are not particularly limited, and include, but are not limited to, vacuum pumps, vacuum generators, etc. In some embodiments, the integrated composite membrane preparation and drying device of this invention includes a first negative pressure generating component and a second negative pressure generating component, which are respectively connected to the first vacuum adsorption port and the second vacuum adsorption port.

[0048] In some embodiments, the integrated composite membrane preparation and drying apparatus of this invention further includes a pressurizing component connected to a spray nozzle to assist in the spraying of the coating solution from the nozzle. The pressurizing component is not particularly limited and may, for example, be a pressure pump.

[0049] The control component controls the heating and vacuum adsorption of the drying adsorption component, and the movement, spraying, and vacuum adsorption of the spray adsorption component. The control component includes an electric actuator and a controller. The electric actuator is connected to the spray adsorption component and moves it to the spraying or adsorption site. In some embodiments, the adsorption spraying plate of the spray adsorption component is connected to the electric actuator. The adsorption spraying plate and the electric actuator can be fixedly connected or integrated. The controller is electrically connected to the electric actuator, the drying adsorption component, and the spray adsorption component, and controls the movement of the electric actuator, the heating and vacuum adsorption of the drying adsorption component, and the spraying and vacuum adsorption of the spray adsorption component.

[0050] In some implementations, the electric actuator includes a moving motor, a stepper motor, a commutator, and an electric telescopic rod. The moving motor is connected to the controller via a control line; a stepper motor is mounted on the moving motor, and a commutator is mounted on the stepper motor, which is connected to the controller; an electric telescopic rod is located at the front end of the moving motor, and the other end of the electric telescopic rod is connected to a spray adsorption assembly; the moving motor moves under the drive of the stepper motor; the commutator changes the direction of movement of the moving motor; the controller controls the moving motor to move to the spray or adsorption point, and the electric telescopic rod extends and retracts, driving the spray adsorption assembly to perform spraying or adsorption and placement of the intermediate reinforcement layer.

[0051] In some implementations, the control components also include a gantry, solution piping, and control line piping.

[0052] The gantry crane is used to support solution pipelines, control line pipelines, electric actuators, and controllers.

[0053] The solution pipeline is located in the built-in groove of the gantry frame. One end of the solution pipeline is connected to the coating solution device, and the other end is connected to the spray nozzle of the spray adsorption component, which is used to transport the coating solution in the coating solution device to the spray nozzle.

[0054] The control cable is housed in a recessed area within the gantry frame. One end of the control cable connects to the controller, while the other end connects to the electric push rod device, the drying adsorption assembly, and the spraying adsorption assembly.

[0055] The electric actuator can be mounted on the gantry. The moving motor and controller are connected via control lines. Driven by a stepper motor, the moving motor moves along the gantry, which serves as a transverse moving track. A commutator changes the direction of the moving motor, allowing it to run smoothly on the gantry. The controller moves the moving motor to the spraying or adsorption point, and the electric telescopic rod extends and retracts, driving the spraying and adsorption components to perform spraying or adsorption and placement of the intermediate reinforcement layer.

[0056] The controller can be placed on the side of the gantry. In some embodiments, the controller is electrically connected to the moving motor of the electric push rod device via a control line. In some embodiments, the controller is electrically connected to the heating device and the first vacuum adsorption orifice of the drying adsorption assembly via a control line. In some embodiments, the controller is electrically connected to the spray nozzle and the second vacuum adsorption orifice of the spray adsorption assembly via a control line.

[0057] In some embodiments, the integrated fabrication and drying apparatus for the composite film further includes a placement component for placing the pre-cut intermediate reinforcing layer so that it can be adsorbed by the spraying and adsorption component. In some embodiments, the placement component has a flat, square-shaped tray for fixing the intermediate reinforcing layer. The size and material of the placement component are not limited, as long as they are sufficient to hold the pre-cut intermediate reinforcing layer. In some embodiments, the placement component is a flat stainless steel square table.

[0058] The beneficial effects of this utility model are:

[0059] In the process of preparing composite membranes in the field of proton exchange membranes, the device of this invention can optimize the synergistic distribution of the internal flow field and temperature field, and achieve a continuous and seamless connection from liquid raw materials to drying and film formation. This effectively avoids interface problems, reduces energy consumption, and regulates the microstructure and performance of the film through precise control of process parameters, providing advanced equipment support for the green and efficient manufacturing of high-performance composite membranes.

[0060] The present invention will be described below by way of specific embodiments. It should be understood that these embodiments are merely illustrative and are not intended to limit the scope of the present invention. Unless otherwise stated, the methods, reagents, and materials used in the embodiments are conventional methods, reagents, and materials in the art. The raw material compounds in the embodiments are all commercially available.

[0061] Example 1

[0062] Example 1 provides an integrated apparatus for the preparation and drying of composite membranes, such as... Figure 1 As shown, it includes a drying adsorption component 100, a placement component 200, a spray adsorption component 300, and a control component 400.

[0063] The drying adsorption assembly 100 is used to hold the substrate and the drying coating solution. For example... Figure 2 As shown, the drying adsorption assembly 100 includes a heating platform 110 and an adsorption platform 120. The heating platform 110 is fastened to the adsorption platform 120 by screws in the groove of the adsorption platform 120. The heating platform 110 supports the substrate and dries the coated substrate through a built-in heating device 111. The heating device 111 is connected to the heating platform 110 by a built-in snap-fit. The adsorption platform 120 is provided with a plurality of first vacuum adsorption holes 121, which adsorb the intermediate reinforcing layer (made of EPTFE, 6µm thick, Shanghai Guangbei Technology Co., Ltd.) under negative pressure and fix it to the substrate. The first vacuum adsorption holes 121 on the adsorption platform 120 are arranged in a regular array, with a density of 1-6 vacuum adsorption holes per square centimeter. The pore size of the first vacuum adsorption holes is 0.5-3mm.

[0064] The placement component 200 is located below the control component 400. It is a flat stainless steel square table with a fixed square-shaped flat base for placing the intermediate reinforcement layer.

[0065] The spray adsorption assembly 300 is used to spray the coating solution and adsorb the intermediate reinforcing layer on the placement assembly 200. The spray adsorption assembly 300 includes an adsorption spray plate, which has spray nozzles 310 connected to the solution pipeline and several second vacuum adsorption holes 320, such as... Figure 3 As shown. The spray nozzles 310 are arranged in a staggered pattern; the nozzle diameter is 1.3-1.4 mm, and the spray width is 200-300 mm. The second vacuum adsorption holes 320 are arranged in a regular array, with a density of 1-6 vacuum adsorption holes per square centimeter. The pore size of the second vacuum adsorption holes is 0.5-3 mm.

[0066] The adsorption spray plate of the spray adsorption assembly 300 is fixedly connected to the electric push rod device of the control assembly 400.

[0067] The control component 400 is connected to both the drying adsorption component 100 and the spray adsorption component 300, and is used to control the heating and vacuum adsorption of the drying adsorption component 100, as well as the movement, spraying, and vacuum adsorption of the spray adsorption component 300. The control component 400 includes a solution pipeline 410, a control line pipeline 420, a gantry 430, an electric push rod device, and a controller 450. Figure 1 As shown.

[0068] The gantry 430 is used to support the solution pipeline 410, the control line pipeline 420, the electric actuator, and the controller 450.

[0069] The solution pipeline 410 is located in the built-in groove of the gantry 430. One end of the solution pipeline is connected to the coating solution device, and the other end is connected to the spray nozzle 310 of the spray adsorption assembly 300, which is used to transport the coating solution in the coating solution device to the spray nozzle.

[0070] An electric actuator is mounted on the gantry 430 and is used to move the spray adsorption assembly 300 to the spraying or adsorption site for spraying or adsorption and placement of the intermediate reinforcement layer. The electric actuator includes a moving motor 440, a stepper motor 441, a commutator 442, and an electric telescopic rod 443. The moving motor 440 is mounted on the gantry 430 and is connected to the controller 450 via a control cable 420. A stepper motor 441 is mounted on a mobile motor 440, and a commutator 442 is mounted on the stepper motor 441. The stepper motor 441 is connected to a controller 450. An electric telescopic rod 443 is provided at the front end of the mobile motor 440, and the other end is connected to the spray adsorption assembly 300. The mobile motor 440 moves along the gantry 430 under the drive of the stepper motor 441. The gantry 430 is a transverse moving track. The commutator 442 changes the running direction of the mobile motor 440, so that it runs smoothly on the gantry 430. The control system 450 controls the mobile motor 440 to move to the spray or adsorption point, and the electric telescopic rod 443 extends and retracts, driving the spray adsorption assembly 300 to perform spraying or adsorption and placement of the intermediate reinforcement layer.

[0071] The control line 420 is located in the built-in groove 430 of the gantry. One end of the control line 420 is connected to the controller 450, and the other end is connected to the electric push rod device, the drying adsorption assembly 100, and the spray adsorption assembly 300, respectively.

[0072] The controller 450 is placed on the side of the gantry 430 and is electrically connected to the electric push rod device, the drying adsorption assembly 100, and the spray adsorption assembly 300 via control lines 420. The controller 450 is also electrically connected to the moving motor 440 of the electric push rod device via control lines 420. The controller 450 is further electrically connected to the heating device 111 and the first vacuum adsorption port 121 of the drying adsorption assembly 100 via control lines 420. Finally, the controller 450 is electrically connected to the spray nozzle 310 and the second vacuum adsorption port 320 of the spray adsorption assembly 300 via control lines 420.

[0073] Example 1 also provides an integrated method for the preparation and drying of a composite film, which includes, using the above-mentioned device, first placing a pre-cut substrate on a heating platform 110, wherein the shape and size of the substrate are basically consistent with the heating platform 110.

[0074] The controller 450 controls the moving motor 440 to move directly above the heating platform 110. The electric telescopic rod 443 controls the distance between the spray adsorption component 300 and the heating platform 110. After adjusting to a suitable distance, the controller 450 controls the spray nozzle 310 to evenly spray the solution onto the placed substrate. The air pressure at the spray nozzle is 0.3-0.5 MPa, and the solution flow rate is 1.5-2.0 L / min.

[0075] Then, the controller 450 controls the moving motor 440 to move it directly above the placement component 200. The electric telescopic rod 443 controls the distance between the spray adsorption component 300 and the placement component 200. After adjusting to a suitable distance, the controller 450 controls the second vacuum adsorption hole 320 to adsorb the intermediate reinforcing layer pre-placed on the placement component 200 onto the spray adsorption component 300. During adsorption, the vacuum degree of the second vacuum adsorption hole 320 is 0.005MPa-0.03MPa.

[0076] Then, the controller 450 controls the moving motor 440 to move it directly above the heating platform 110. The electric telescopic rod 443 controls the distance between the spray adsorption assembly 300 and the heating platform 110. After adjusting to a suitable distance, the controller 450 controls the vacuum adsorption hole 320 to close the vacuum adsorption, while simultaneously controlling the vacuum adsorption hole 120 to open, adsorbing the intermediate reinforcing layer on the spray adsorption assembly 300 onto the heating platform 110. During adsorption, the vacuum degree of the first vacuum adsorption hole 120 is 0.005MPa-0.02MPa. At this time, the intermediate reinforcing layer will be in complete contact with the previously sprayed solution until it is fully wetted.

[0077] Then, the heating device 111 is controlled by the controller 450 to heat the heating platform, and the previously sprayed solution and intermediate reinforcement layer are dried within a suitable time.

[0078] The controller 450 controls the moving motor 440 to move directly above the heating platform 110. The electric telescopic rod 443 controls the distance between the spray adsorption component 300 and the heating platform 110. After adjusting to a suitable distance, the controller 450 controls the spray nozzle 310 to evenly spray the solution onto the dried reinforcement layer.

[0079] Then, the heating device 111 is controlled by the controller 450 to heat the heating platform. Within a suitable time, the previously sprayed solution and the intermediate reinforcing layer are dried to obtain a composite film.

[0080] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An integrated apparatus for preparing and drying composite membranes, characterized in that, The integrated device for preparing and drying the composite membrane includes: a drying adsorption component, a spraying adsorption component, and a control component; The drying and adsorption assembly includes a heating platform and an adsorption platform. The heating platform is fastened to the adsorption platform through a groove in the adsorption platform. The heating platform is used to support the substrate and heats the coated substrate through a built-in heating device. A first vacuum adsorption hole is provided on the adsorption platform for adsorbing the intermediate reinforcing layer of the composite film and fixing it to the substrate. The first vacuum adsorption hole is located around the heating platform. The spraying and adsorption assembly includes an adsorption spraying plate, which is provided with a second vacuum adsorption hole and a spraying nozzle; the second vacuum adsorption hole is used to adsorb the intermediate reinforcement layer of the composite film; the spraying nozzle is used to spray the coating solution onto the substrate; The control component includes an electric push rod device and a controller. The electric push rod device is connected to the spray adsorption component and is used to move the spray adsorption component to the spraying site or adsorption site. The controller is electrically connected to the electric push rod device, the drying adsorption component and the spray adsorption component respectively, and is used to control the movement of the electric push rod device, the heating and vacuum adsorption of the drying adsorption component, and the spraying and vacuum adsorption of the spray adsorption component.

2. The integrated apparatus for preparing and drying the composite membrane as described in claim 1, characterized in that, The heating platform is fastened to the adsorption platform by screws in the grooves of the adsorption platform; and / or The heating device is connected to the heating platform via built-in buckles or built-in grooves.

3. The integrated apparatus for preparing and drying the composite membrane as described in claim 1, characterized in that, The number of the first vacuum adsorption pores is at least two, arranged in a regular array, with a density of 1-6 vacuum adsorption pores per square centimeter; and / or The diameter of the first vacuum adsorption pore is 0.5-3 mm.

4. The integrated apparatus for preparing and drying the composite membrane as described in claim 1, characterized in that, The nozzle diameter of the spray nozzle is 1.3-1.4 mm; and / or The spray width of the spray nozzle is 200-300mm.

5. The integrated apparatus for preparing and drying the composite membrane as described in claim 1, characterized in that, The number of the second vacuum adsorption pores is at least two, arranged in a regular array, with a density of 1-6 vacuum adsorption pores per square centimeter; and / or The pore size of the second vacuum adsorption pore is 0.5-3 mm.

6. The preparation and drying integrated device for a composite film according to claim 1, wherein The adsorption spraying plate of the spraying adsorption assembly is connected to the electric push rod device of the control assembly; the connection between the adsorption spraying plate and the electric push rod device is a fixed connection or an integrated connection.

7. The integrated apparatus for preparing and drying the composite membrane as described in claim 1, characterized in that, The electric actuator includes a moving motor, a stepper motor, a commutator, and an electric telescopic rod. The moving motor is connected to the controller via a control cable. A stepper motor is mounted on the moving motor, and a commutator is mounted on the stepper motor. The stepper motor is connected to the controller. An electric telescopic rod is located at the front end of the moving motor, and the other end of the electric telescopic rod is connected to a spray adsorption assembly. The moving motor moves under the drive of the stepper motor. The commutator changes the running direction of the moving motor. The controller controls the moving motor to move to the spray or adsorption point, and the electric telescopic rod extends and retracts, driving the spray adsorption assembly to perform spraying or adsorption and placement of the intermediate reinforcement layer.

8. The preparation and drying integrated device of the composite film according to claim 1, wherein, The control assembly also includes a gantry, solution piping, and control line piping; Gantry cranes are used to support solution pipelines, control line pipelines, electric actuators, and controllers; The solution pipeline is located in the built-in groove of the gantry; one end of the solution pipeline is connected to the coating solution device, and the other end is connected to the spray nozzle of the spray adsorption component, for conveying the coating solution in the coating solution device to the spray nozzle; The control cable is installed in the built-in groove of the gantry frame; One end of the control line is connected to the controller, and the other end is connected to the electric push rod device, the drying adsorption component, and the spraying adsorption component, respectively.

9. The apparatus according to claim 8, wherein the apparatus is characterized by: The control component has one or more of the following characteristics: The controller and the moving motor of the electric actuator are electrically connected via control lines. The controller is electrically connected to the heating device and the first vacuum adsorption hole of the drying adsorption assembly via a control line. The controller is electrically connected to the spray nozzle and the second vacuum adsorption hole of the spray adsorption component via a control line.

10. The apparatus according to claim 1, wherein the apparatus is characterized by: The device also includes a placement component for placing the cut intermediate reinforcement layer so that it can be adsorbed by the spray adsorption component.

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