Wet film forming device
By designing the temperature control, traction and concentration control module of the wet film forming device, the problem of highly targeted existing equipment is solved, and efficient film formation under different conditions is achieved, and the applicability of the equipment is improved.
Patent Information
- Application Number
- CN202422483417.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The existing wet film forming equipment is obviously targeted to the solvent system, reducing the practicality of the film forming equipment.
A wet film forming device is designed, including a film forming groove, a temperature control module, a traction module and a concentration control module. The temperature control module is used to adjust the temperature in the film forming groove, the traction module adjusts the transfer speed and thickness of the film, and the concentration control module adjusts the solution concentration to improve the applicability of the equipment.
It realizes the efficient molding of polymer films under different temperatures and solution concentrations, and improves the universality and practicality of wet film forming equipment.
Smart Images
Figure CN223236777U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of wet film forming equipment, and in particular to a wet film forming device. Background Art
[0002] It can be understood that different polymer solutions require different process conditions for film formation. The wet film forming process mainly utilizes the interaction between solvent and non-solvent to form polymer film, which can produce membrane materials with various complex structures and properties.
[0003] Existing wet film-forming equipment is obviously targeted and needs to be matched with a corresponding solvent system, which reduces the practicality of the film-forming equipment. Utility Model Content
[0004] In view of this, the present application provides a wet film forming device, the purpose of which is to solve one of the technical problems in the prior art.
[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:
[0006] In a first aspect, an embodiment of the present application provides a wet film forming device, comprising:
[0007] Film forming tank;
[0008] A temperature control module, comprising a heating element and an adjusting element, wherein the heating element is arranged outside the film forming tank, and the adjusting element controls the start and stop of the heating element;
[0009] A pulling module, comprising a clamping member and a conveying member, wherein both the clamping member and the conveying member are arranged in the film forming tank, and the clamping member is arranged at the input end of the conveying member to pull the formed film onto the conveying member;
[0010] The concentration control module is connected to the film forming tank and is used to change the concentration of the solution in the film forming tank.
[0011] In one embodiment of the first aspect, the heating element comprises:
[0012] A housing having a hollow structure, a liquid inlet and a liquid outlet are provided on the housing, and a flow channel is formed in the housing;
[0013] A circulation pipeline is communicated with the liquid inlet and the liquid outlet of the shell.
[0014] In one embodiment of the first aspect, the regulating member includes a temperature sensor, and the temperature sensor is used to sense the temperature in the film forming tank;
[0015] The heating element further includes a heating module and a cooling module. The temperature sensor is connected to the heating module. The heating module or the cooling module heats or cools the liquid in the circulation pipeline according to the temperature signal fed back by the temperature sensor.
[0016] In one embodiment of the first aspect, the transmission member comprises:
[0017] a first roller group, the first roller group comprising a plurality of first roller shafts spaced apart along a first direction;
[0018] The second roller group, the first roller group and the second roller group are arranged at intervals along the second direction, the first direction and the second direction are perpendicular, the second roller group includes a plurality of second roller shafts arranged at intervals along the first direction, and in the first direction, the first roller shafts and the second roller shafts are alternately arranged.
[0019] In one embodiment of the first aspect, the conveying member further includes a rotation speed adjustment module, wherein the rotation speed adjustment module is connected to the first roller and the second roller to adjust the rotation speed of the first roller and the second roller.
[0020] In one embodiment of the first aspect, the concentration control module includes:
[0021] a concentration control module, the concentration control module including a concentration sensor and a suction member, the concentration sensor being connected to the suction member to control the start and stop of the suction member;
[0022] A filtering module is connected to the output end of the suction component, and the output end of the filtering module is communicated with the film-forming tank of the collection module liquid storage tank.
[0023] In one embodiment of the first aspect, the concentration control module further comprises a collection module, wherein an input end of the collection module is connected to the filtration module, and an output end of the collection module is connected to the film forming tank;
[0024] The collection module includes two filtrate storage tanks, which are used to store the solvent or non-solvent obtained by filtration. The two filtrate storage tanks are both connected to the film-forming tank.
[0025] In one embodiment of the first aspect, the filtration module is a reverse osmosis membrane.
[0026] In one embodiment of the first aspect, the wet film forming device further includes a loading module, the loading module includes a storage container and a heat-insulating component, and the heat-insulating component is disposed around the outside of the storage container.
[0027] In one embodiment of the first aspect, the feeding module further includes a metering member and a nozzle, the nozzle is connected to the storage container, and the metering member is provided at the feeding end of the nozzle.
[0028] Compared with the prior art, the present application has the following advantages: The present application proposes a wet film forming device, comprising a film forming tank, a temperature control module, a pulling module, and a concentration control module. The temperature control module comprises a heating element and an adjusting element. The heating element is disposed outside the film forming tank, and the adjusting element controls the start and stop of the heating element to achieve temperature control of the solution in the film forming tank, enabling the formation of polymer films under different temperature conditions in the film forming tank, thereby improving practicality.
[0029] The traction module includes a clamping member and a conveying member, both of which are arranged in the film forming tank. The clamping member is arranged at the input end of the conveying member to pull the formed film onto the conveying member. The conveying speed of the conveying member is adjustable. By adjusting the conveying speed difference between the front and rear rollers, the thickness of the film can be adjusted.
[0030] The concentration control module is connected to the film forming tank. The concentration control module is used to change the concentration of the solution in the film forming tank to make the film forming efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0032] Figure 1 A schematic structural diagram of a wet film forming device in some embodiments of the present application is shown.
[0033] Explanation of the main component symbols: 100-wet film forming device; 110-film forming tank; 120-temperature control module; 130-traction module; 140-concentration control module; 121-heating element; 1211-shell; 1212-circulation pipeline; 1213-heating module; 122-adjusting element; 1221-temperature sensor; 131-clamping element; 132-transmitting element; 1321-first roller group; 1322-second roller group; 13211-first roller shaft; 13221-second roller shaft; 141-filtration module; 1421-concentration sensor; 143-collecting module; 1431-filtrate storage tank; 150-feeding module; 151-storage container; 152-metering element; 153-nozzle; D1-first direction; D2-second direction. DETAILED DESCRIPTION
[0034] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.
[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0037] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.
[0038] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0039] The wet film-forming process is sensitive to environmental conditions. Temperature fluctuations can affect the solvent's evaporation rate and the film-forming process, leading to unstable film properties. Furthermore, wet film-forming requires precise control of factors such as solution ratio, coating speed, and temperature. These factors make existing wet film-forming equipment highly specialized, reducing its practicality.
[0040] like Figure 1 As shown, an embodiment of the present application provides a wet film forming device 100, which is mainly used to improve the universality and practicality of wet film forming equipment.
[0041] The wet film forming apparatus 100 includes a film forming tank 110 , a temperature control module 120 , a pulling module 130 and a concentration control module 140 .
[0042] Among them, the temperature control module 120 includes a heating element 121 and an adjusting element 122. The heating element 121 is arranged around the outside of the film-forming tank 110, and the adjusting element 122 controls the start and stop of the heating element 121 to achieve temperature control of the solution in the film-forming tank 110, so that the polymer film can be formed under different temperature conditions in the film-forming tank 110, thereby improving practicality.
[0043] The traction module 130 includes a clamping member 131 and a conveying member 132. The clamping member 131 and the conveying member 132 are both arranged in the film forming tank 110. The clamping member 131 is arranged at the input end of the conveying member 132 to pull the formed film onto the conveying member 132. The conveying speed of the conveying member 132 is adjustable to adapt to the forming speed of different films and regulate the thickness of the film.
[0044] The concentration control module 140 is connected to the film forming tank 110 . The concentration control module 140 is used to change the concentration of the solution in the film forming tank 110 to increase the efficiency of film forming.
[0045] In some embodiments, the heating element 121 includes a shell 1211 and a circulation pipeline 1212 .
[0046] like Figure 1 As described, the film forming tank 110 has a bottom plate and side plates arranged on the bottom plate. The shape of the shell 1211 matches the shape of the film forming tank 110. The shell 1211 is welded to the outside of the film forming tank 110 so that a certain space is formed between the shell 1211 and the film forming tank 110. The circulating coolant through the circulating pipeline 1212 can heat or cool the side plates and top plate of the film forming tank 110, thereby improving the heating efficiency.
[0047] The housing 1211 is made of metal, such as aluminum, aluminum alloy, or stainless steel.
[0048] There is a hollow structure between the shell 1211 and the film-forming tank 110. The shell 1211 is provided with a liquid inlet and a liquid outlet. A flow channel is formed inside the shell 1211. The circulation pipeline 1212 is connected to the liquid inlet and the liquid outlet of the shell 1211, and the liquid circulates in the shell 1211 and the circulation pipeline 1212.
[0049] Illustratively, the liquid is warm water or an ethylene glycol aqueous solution.
[0050] In some embodiments, a heating wire may be provided in the shell 1211 to heat the film forming tank 110 , so that the circulation line 1212 may not be provided.
[0051] In some embodiments, the regulating member 122 includes a temperature sensor 1221 for sensing the temperature in the film forming tank 110. It is understood that different types of films have different molding temperatures, and the temperature of the solution in the film forming tank 110 needs to be changed according to the type of film being formed.
[0052] The heating element 121 also includes a heating module 1213 and a cooling module (not shown). Exemplarily, the heating module 1213 is an electric heating wire, or exhaust gas or steam heat source from other equipment, etc., so that the heat source and the circulation pipeline 1212 can exchange heat to achieve heating.
[0053] Temperature sensor 1221 is connected to heating module 1213. Heating module 1213 or cooling module heats or cools the liquid in circulation line 1212 based on the temperature signal fed back by temperature sensor 1221. Temperature sensor 1221 can be set to a preset temperature for different film types. When the solution temperature exceeds the preset sensor temperature, heating module 1213 stops heating. When the solution temperature falls below the preset sensor temperature, heating module 1213 starts heating. This maintains the solution temperature in the forming tank at the ideal film-forming temperature, improving production efficiency.
[0054] In some embodiments, the clamping member 131 uses a robot to achieve the initial traction of the film on the roller in the film forming tank 110, thereby improving the degree of automation and increasing production efficiency.
[0055] In some embodiments, the conveyor 132 includes a first roller set 1321 and a second roller set 1322 .
[0056] The first roller group 1321 includes a plurality of first roller shafts 13211 spaced apart along the first direction D1;
[0057] The first roller group 1321 and the second roller group 1322 are arranged at intervals along the second direction D2, and the first direction D1 and the second direction D2 are perpendicular. The second roller group 1322 includes a plurality of second roller shafts 13221 arranged at intervals along the first direction D1. In the first direction D1, the first roller shaft 13211 and the second roller shaft 13221 are alternately arranged, so that the transmission direction of the film has a certain angle with the horizontal plane, thereby extending the transmission time of the film and achieving sufficient solidification and traction of the film.
[0058] In some embodiments, the conveying member 132 also includes a speed adjustment module (not shown), which is connected to the first roller group 1321 and the second roller group 1322 to adjust the rotation speed of the first roller 13211 and the second roller 13221, and adjust the thickness of the film by changing the stretching speed of the film.
[0059] It can be understood that as the polymer solution forms a thin film, the solvent in the polymer solution is constantly accumulated in the film forming tank 110, and the concentration continues to increase. When the solvent concentration in the film forming tank is too high, the film forming efficiency is reduced.
[0060] In some embodiments, the concentration control module 140 includes a concentration control module and a filtration module 141 .
[0061] The concentration control module (not shown) includes a concentration sensor 1421 and a suction member (not shown). The concentration sensor 1421 is connected to the suction member to control the start and stop of the suction member. The filter module 141 is connected to the output end of the suction member, and the output end of the filter module 141 is connected to the film forming tank 110.
[0062] The suction member adopts a suction pump.
[0063] When the concentration sensor 1421 detects that the concentration of the solvent in the film-forming tank 110 is too high, the suction part starts to extract the solution in the film-forming tank 110 and transmits it to the filtration module 141. After the solution in the film-forming tank 110 is filtered out of the solvent by the filtration module 141, the non-solvent solution is returned to the film-forming tank 110, thereby reducing the concentration of the solution in the film-forming tank 110 and recycling the solvent.
[0064] When the concentration sensor 1421 detects that the concentration of the solvent in the film forming tank 110 drops to a preset concentration, the suction member stops working. Such a concentration control process improves the film forming efficiency.
[0065] In some embodiments, the concentration control module 140 further includes a collection module 143 , the input end of the collection module 143 is connected to the filtration module 141 , and the output end is connected to the film forming tank 110 . By setting up the collection module 143 , part of the solvent is recovered and stored.
[0066] The collection module 143 includes two filtrate storage tanks 1431, which are used to store the solvent or non-solvent obtained by filtration. The two filtrate storage tanks 1431 are both connected to the film-forming tank 110 and are used to regulate the concentration of the solution in the film-forming tank 110 to achieve the recycling of solutes and solutions.
[0067] In some embodiments, the filtration module 141 is a reverse osmosis membrane, which uses reverse osmosis technology to separate substances such as water, sulfuric acid, solvent, and solute in the solution of the membrane tank 110.
[0068] In some embodiments, the wet film forming apparatus 100 further includes a loading module 150 . The loading module 150 includes a storage container 151 and a heat-insulating component (not shown). The heat-insulating component is disposed around the outside of the storage container 151 .
[0069] The storage container 151 is provided with a feed inlet, an air inlet and an air outlet at the top for exhausting the air in the solution, and a discharge port at the bottom. The storage container 151 is provided with a heat-insulating member outside to keep the temperature of the solution in the storage container 151 constant.
[0070] In some embodiments, the loading module 150 also includes a metering piece 152 and a nozzle 153. The nozzle 153 is connected to the discharge port of the storage container 151. The metering piece 152 is arranged at the feed end of the nozzle 153, so that the liquid in the storage container 151 first enters the metering piece 152 for metering and then is sprayed out by the nozzle 153.
[0071] The working process of the wet film forming apparatus 100 is as follows:
[0072] The solution in the storage container 151 is sprayed into the film forming tank 110 through the nozzle 153 and forms a thin film in the film forming tank 110;
[0073] The clamping member 131 initially pulls the film onto the upper roller, and the conveying member 132 conveys the film;
[0074] The temperature sensor 1221 detects the temperature of the solution in the film forming tank 110 and adjusts the temperature through the heating element 121, so that the wet film forming device 100 can be applied to the formation of various types of thin films;
[0075] The concentration sensor 1421 detects the concentration of the solution in the film forming tank 110 and adjusts the concentration of the solvent in the solution through the filtration module 141 and the concentration control module to improve the film forming effect.
[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0077] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A wet film forming device, characterized in that: include: Film forming tank; A temperature control module, comprising a heating element and an adjusting element, wherein the heating element is arranged outside the film forming tank, and the adjusting element controls the start and stop of the heating element; A pulling module, comprising a clamping member and a conveying member, wherein both the clamping member and the conveying member are arranged in the film forming tank, and the clamping member is arranged at the input end of the conveying member to pull the formed film onto the conveying member; The concentration control module is connected to the film forming tank and is used to change the concentration of the solution in the film forming tank.
2. The wet film forming device according to claim 1, characterized in that: The heating element comprises: A housing having a hollow structure, a liquid inlet and a liquid outlet are provided on the housing, and a flow channel is formed in the housing; A circulation pipeline is communicated with the liquid inlet and the liquid outlet of the shell.
3. The wet film forming device according to claim 2, characterized in that: The regulating member includes a temperature sensor, and the temperature sensor is used to sense the temperature in the film forming tank; The heating element further includes a heating module and a cooling module. The temperature sensor is connected to the heating module. The heating module or the cooling module heats or cools the liquid in the circulation pipeline according to the temperature signal fed back by the temperature sensor.
4. The wet film forming apparatus according to any one of claims 1 to 3, characterized in that: The transmission member comprises: a first roller group, the first roller group comprising a plurality of first roller shafts spaced apart along a first direction; The second roller group, the first roller group and the second roller group are arranged at intervals along the second direction, the first direction and the second direction are perpendicular, the second roller group includes a plurality of second roller shafts arranged at intervals along the first direction, and in the first direction, the first roller shafts and the second roller shafts are alternately arranged.
5. The wet film forming device according to claim 4, characterized in that: The conveying member further includes a rotation speed regulating module, which is connected to the first roller and the second roller to regulate the rotation speed of the first roller and the second roller.
6. The wet film forming apparatus according to any one of claims 1 to 3, characterized in that: The concentration control module includes: a concentration control module, the concentration control module including a concentration sensor and a suction member, the concentration sensor being connected to the suction member to control the start and stop of the suction member; A filtration module is connected to the output end of the suction member, and the output end of the filtration module is communicated with the film-forming tank.
7. The wet film forming device according to claim 6, characterized in that: The concentration control module further includes a collection module, wherein the input end of the collection module is connected to the filtration module, and the output end of the collection module is connected to the film forming tank; The collection module includes two filtrate storage tanks, which are used to store the solvent or non-solvent obtained by filtration. The two filtrate storage tanks are both connected to the film-forming tank.
8. The wet film forming device according to claim 6, characterized in that: The filtration module is a reverse osmosis membrane.
9. The wet film forming apparatus according to any one of claims 1 to 3, characterized in that: The wet film forming device further includes a loading module, which includes a storage container and a heat-insulating component, and the heat-insulating component is arranged around the outside of the storage container.
10. The wet film forming device according to claim 9, characterized in that: The feeding module further includes a metering piece and a nozzle. The nozzle is connected to the storage container, and the metering piece is arranged at the feeding end of the nozzle.