Film making equipment

Abstract

The utility model relates to the technical field of polymer filtering membrane preparation, and discloses membrane preparation equipment which comprises a batching device, a feeding device, an unwinding device, a membrane coating device, a curing device, a cleaning device, a first winding device and a second winding device, the batching device is used for preparing film coating liquid; the feeding device is used for conveying the film coating liquid; the unwinding device is used for unwinding a base film; the film coating device is used for coating a base film with film coating liquid; the curing device is used for curing the film coating liquid coated on the base film to form a flat sheet film; the cleaning device is used for cleaning the flat sheet membrane; the first winding device is used for winding the base film; the second winding device is used for winding the flat sheet membrane; according to the film making equipment provided by the utility model, through the cooperation of the batching device, the feeding device, the unwinding device, the film coating device, the curing device, the cleaning device, the first winding device and the second winding device, the improvement of the accuracy of scientific research experiment data can be facilitated, the film making time can be shortened, and the production efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polymer filter membrane preparation technical field, especially a kind of membrane preparation equipment. BACKGROUND

[0002] Membrane separation technology is a new type of efficient separation technology, and its separation process has the advantages of low energy consumption, good separation performance, no secondary pollution, easy integration with other technologies, etc., and has been widely used in chemical industry, energy, electronics, medicine, food, environmental protection, water treatment and other fields. Two common methods for preparing polymer flat membrane are NIPS (non-solvent induced phase separation) method and TIPS (thermal induced phase separation) method. Compared with NIPS method, TIPS method has many advantages in preparing polymer filter membrane: (1) membrane structure can be easily controlled by selecting diluent and adjusting membrane preparation process; (2) phase separation is caused only by temperature change, with fewer process influencing factors, simple membrane preparation process, easy to control and continuous preparation process; (3) the obtained membrane structure is regular, with narrow pore size distribution and high mechanical strength.

[0003] Although TIPS method has the above advantages, its membrane preparation process needs to be carried out at high temperature (10℃-50℃ higher than the melting point of polymer), and the performance and structure of the membrane are greatly affected by temperature, so TIPS method has high requirements for temperature control accuracy of membrane preparation equipment and temperature regulation of membrane preparation process. In scientific research experiments, polymer flat membrane is prepared by TIPS method, that is, polymer and diluent are added to a three-necked flask in a certain proportion, then stirred and mixed in a high-temperature oil bath to form a homogeneous liquid, then the liquid is poured onto a hot stage for blade coating, and finally the primary membrane is solidified and formed in a coagulation bath. There is a large temperature loss when the liquid is poured from the three-necked flask onto the hot stage, and it takes a long time from pouring the liquid onto the hot stage to forming in the coagulation bath. These two factors will cause a large difference between the experimental process data obtained and the production process data, because the TIPS method is only affected by temperature, and the temperature loss of the above membrane preparation method cannot be controlled and quantified, resulting in a large deviation between the experimental process data obtained and the actual production process data, which affects the accuracy of scientific research experimental data. Commercial TIPS method for producing polymer flat membrane is to plasticize and extrude polymer by a double-screw extruder, then flow into a flat membrane through a casting die, then solidify and clean, and finally separate the flat membrane from the base film and roll it up. As the core equipment for plasticizing and extruding polymer, the double-screw extruder has a complex structure and a large volume, which leads to a long membrane preparation equipment and a complex circulation, requiring a long site and a large amount of raw materials and a long membrane preparation time for each batch production, resulting in low production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a film making equipment, the film making equipment can help promote the accuracy of scientific research experiment data, shorten the film making time and improve production efficiency.

[0005] In order to realize the above-mentioned purpose, the utility model provides a film making equipment, including batching device, feeding device, unwinding device, coating device, solidification device, cleaning device, first winding device and second winding device, the batching device is used for configuration coating liquid, the feeding device is connected with batching device and is used for conveying coating liquid, the unwinding device is used for unwinding base film, the coating device is connected with feeding device and is used for coating coating liquid on base film, the solidification device is located below coating device and is used for making coating liquid solidification and form flat plate film on base film, the cleaning device is located one side of solidification device and is used for cleaning flat plate film, the first winding device is located above cleaning device and is used for winding base film, the second winding device is located above cleaning device and is used for winding flat plate film.

[0006] In some embodiments, the batching device includes a dissolving kettle and a first heating mechanism, the first heating mechanism is connected to the dissolving kettle and is used to heat the dissolving kettle.

[0007] In some embodiments, the feeding device includes a feeding pipe, a filter and a metering pump, one end of the feeding pipe is connected to the batching device, the filter is installed on the feeding pipe, and the metering pump is installed on the feeding pipe.

[0008] In some embodiments, the coating device includes a coating head and a back roller, the coating head is connected to the feeding device, the back roller is located below the coating head, and a coating gap for the base film to pass through is formed between the lower end of the coating mechanism and the upper end of the back roller.

[0009] In some embodiments, the film making equipment further includes a leveling device, the leveling device includes a first leveling roller and a second leveling roller, the first leveling roller is located between the unwinding device and the back roller, the second leveling roller is located below the first leveling roller, and a leveling gap for the base film to pass through is formed between the lower end of the first leveling roller and the upper end of the second leveling roller.

[0010] In some embodiments, the film making equipment further includes a lifting device, the lifting device is connected to the coating head and is used to drive the coating head to rise or fall.

[0011] In some embodiments, the lifting device comprises a lifting support and a lifting driving element connected with the lifting support and used for driving the lifting support to ascend or descend; the coating head is mounted on the lifting support, and the dosing device and the feeding device are mounted on the lifting support.

[0012] In some embodiments, the solidifying device comprises a solidifying tank, a second heating mechanism and a first guide roller, the solidifying tank is located below the coating device and used for containing a solidifying liquid, the second heating mechanism is connected with the solidifying tank and used for heating the solidifying liquid, and the first guide roller is arranged in the solidifying tank.

[0013] In some embodiments, the film manufacturing equipment further comprises a tension roller; the cleaning device comprises a cleaning tank, a third heating mechanism and a second guide roller, the cleaning tank is located on one side of the solidifying tank and used for containing a cleaning liquid, the solidifying tank and the cleaning tank are both located below the tension roller, the third heating mechanism is connected with the solidifying tank and used for heating the cleaning liquid, and the second guide roller is arranged in the cleaning tank; wherein the base film passes through the first guide roller to the tension roller and then passes through the tension roller to the second guide roller.

[0014] In some embodiments, the unwinding device comprises an unwinding motor and an unwinding roller, the unwinding roller is used for being connected with the base film, and the unwinding motor is connected with the unwinding roller and used for driving the unwinding roller to rotate around a central axis thereof; the first winding device comprises a first winding motor and a first winding roller, the first winding roller is used for being connected with the base film, and the first winding motor is connected with the first winding roller and used for driving the first winding roller to rotate around a central axis thereof; the second winding device comprises a second winding motor and a second winding roller, the second winding roller is used for being connected with the flat film, and the second winding motor is connected with the second winding roller and used for driving the second winding roller to rotate around a central axis thereof.

[0015] Compared with the prior art, the film manufacturing equipment has the following beneficial effects: (1) the dosing device is used for configuring coating liquid, and the feeding device is used for directly feeding the coating liquid to the coating device, so that a large temperature loss generated when the traditional TIPS method is used to pour the liquid from a three-necked flask into a hot table in a scientific research experiment can be avoided; since the TIPS method is only affected by temperature, the stable and accurately controlled coating liquid feeding process can make the finally obtained experimental process data closer to actual production process data, and can help to improve the accuracy of scientific research experimental data.

[0016] (2), through the cooperation of the batching device, the feeding device, the unwinding device, the coating device, the curing device, the cleaning device, the first winding device and the second winding device, from the configuration of the coating liquid, the conveying of the coating liquid, the unwinding of the base film, the coating of the coating liquid, the curing of the coating liquid, the cleaning of the flat film, to the winding of the base film and the winding of the flat film, a continuous and efficient film making process is formed; therefore, the film making equipment provided by the utility model does not need to adopt a double screw extruder which is complex in structure and large in size, and the preparation of the flat film can be realized, compared with the film making equipment of the existing commercialized TIPS method adopting a double screw extruder, the film making equipment provided by the utility model is shorter, the turnover is simple, the occupied site is shorter, the film making time can be shortened, and the production efficiency is improved; meanwhile, the film making equipment provided by the utility model closely connects each link from the coating liquid configuration to the winding of the base film and the winding of the flat film through the whole film making process, the waste of raw materials caused by the long equipment process and the complex turnover in the traditional commercialized production can be avoided, the raw materials consumed in each batch production are reduced, and the utilization rate of the raw materials is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a film making equipment provided by an embodiment of the utility model;

[0018] Figure 2 is a front view of a film making equipment provided by an embodiment of the utility model;

[0019] Figure 3 is a sectional view of a film making equipment provided by an embodiment of the utility model;

[0020] Figure 4 is a top view of a film making equipment provided by an embodiment of the utility model;

[0021] Figure 5 is a top view of a curing device and a cleaning device provided by an embodiment of the utility model;

[0022] Figure 6 is a side view of a coating device provided by an embodiment of the utility model;

[0023] Figure 7 is a side view of a leveling device provided by an embodiment of the utility model.

[0024] In the drawing, 1, batching device; 11, dissolving kettle; 12, first heating mechanism; 121, first heating jacket;

[0025] 2, feeding device; 21, feeding pipeline; 22, filter; 23, metering pump;

[0026] 3, unwinding device; 31, unwinding motor; 32, unwinding roller;

[0027] 4, coating device; 41, coating head; 42, back roller; 43, coating gap;

[0028] 5, curing device; 51, curing tank; 52, second heating mechanism; 53, first guide roller; 521, first heating piece;

[0029] 6, cleaning device; 61, cleaning tank; 62, third heating mechanism; 63, second guide roller; 64, limiting roller; 621, second heating piece;

[0030] 7, first winding device; 71, first winding motor; 72, first winding roller;

[0031] 8, second winding device; 81, second winding motor; 82, second winding roller;

[0032] 9, leveling device; 91, first leveling roller; 92, second leveling roller; 93, leveling gap; 94, driving motor;

[0033] 10, lifting device; 101, lifting driving piece; 102, lifting support;

[0034] 20, tension roller;

[0035] 30, base film;

[0036] 40, flat film;

[0037] 50, box body;

[0038] 60, partition plate. DETAILED DESCRIPTION

[0039] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] The terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include one or more of the features implicitly or explicitly.

[0042] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" in the specification and claims of the present application and above description of drawings are intended to cover non-exclusive inclusion.

[0045] In the present application, the phrase "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0046] As Figures 1-7 As shown in the figure, the embodiment of the present application preferably a film manufacturing equipment, including batching device 1, feeding device 2, unwinding device 3, film coating device 4, curing device 5, cleaning device 6, first winding device 7 and second winding device 8.

[0047] The dosing device 1 is used for preparing coating liquid; the feeding device 2 is connected with the dosing device 1 and is used for conveying the coating liquid; the unwinding device 3 is used for unwinding the base film 30; the coating device 4 is connected with the feeding device 2 and is used for coating the coating liquid on the base film 30; the curing device 5 is arranged below the coating device 4 and is used for curing the coating liquid coated on the base film 30 to form the flat film 40; the cleaning device 6 is arranged on one side of the curing device 5 and is used for cleaning the flat film 40; the first winding device 7 is arranged above the cleaning device 6 and is used for winding the base film 30; and the second winding device 8 is arranged above the cleaning device 6 and is used for winding the flat film 40.

[0048] According to the technical scheme, the dosing device 1 is used for preparing the coating liquid, and the feeding device 2 is used for directly conveying the coating liquid to the coating device 4, so that the large temperature loss caused by pouring the liquid from a three-necked flask into a hot table in the traditional TIPS method in scientific research experiments can be avoided; since the TIPS method is only affected by temperature, the stable and accurate conveying process of the coating liquid can make the obtained experimental process data closer to the actual production process data, and the accuracy of the scientific research experimental data can be improved.

[0049] Through the cooperation of the dosing device 1, the feeding device 2, the unwinding device 3, the coating device 4, the curing device 5, the cleaning device 6, the first winding device 7 and the second winding device 8, the preparation of the coating liquid, the conveying of the coating liquid, the unwinding of the base film 30, the coating of the coating liquid, the curing of the coating liquid, the cleaning of the flat film 40, the winding of the base film 30 and the winding of the flat film 40 can be formed into a continuous and efficient film preparation process; therefore, the film preparation equipment provided by the utility model can realize the preparation of the flat film 40 without using a double-screw extruder with a complex structure and a large size, compared with the film preparation equipment using the double-screw extruder in the existing commercial TIPS method, the film preparation equipment provided by the utility model is short, simple in circulation, short in occupied space, can shorten the film preparation time and improve the production efficiency; meanwhile, the film preparation equipment provided by the utility model is closely connected through the whole film preparation process from the preparation of the coating liquid to the winding of the base film 30 and the winding of the flat film 40, so that the waste of raw materials caused by the long equipment process and the complex circulation in the traditional commercial production can be avoided, the consumption of raw materials in each batch of production is reduced, and the utilization rate of raw materials is improved.

[0050] The base film 30 is a corrosion-resistant and high-temperature-resistant film, and as an optimization, the material of the base film 30 can be PET (polyethylene terephthalate), PI (polyimide), PTFE (polytetrafluoroethylene), copper foil, aluminum foil, steel strip and the like.

[0051] Referring to Figures 1-3The batching device 1 comprises a dissolving kettle 11 and a first heating mechanism 12 connected to the dissolving kettle 11 and used for heating the dissolving kettle 11. Since the TIPS method needs to be carried out under specific temperature conditions, the temperature control of the batching link is also crucial. The first heating mechanism 12 can maintain the temperature in the dissolving kettle 11 within a temperature range suitable for dissolving raw materials and consistent with the process of the TIPS method, ensuring that the characteristics of the TIPS method sensitive to temperature are strictly followed from the batching stage. This not only helps to improve the quality of the coating liquid, but also ensures that the entire membrane production process has stability from the beginning, laying a foundation for obtaining flat membranes 40 with regular structure and excellent performance, and further improving the quality of the final flat membranes 40 product.

[0052] The first heating mechanism 12 comprises a first heating jacket 121 wrapped around the outer wall of the dissolving kettle 11. The first heating jacket 121 heats the dissolving kettle 11, and the temperature range of the dissolving kettle 11 is 25-320°C.

[0053] Referring to Figures 1-3 The feeding device 2 comprises a feeding pipe 21, a filter 22 and a metering pump 23. One end of the feeding pipe 21 is connected to the batching device 1, the filter 22 is installed on the feeding pipe 21, and the metering pump 23 is installed on the feeding pipe 21.

[0054] The filter 22 can intercept impurity particles in the coating liquid output by the batching device 1. During the batching process, the raw materials such as polymers and diluents may mix some insoluble impurities. If these impurities enter the subsequent process with the coating liquid, they will form defects on the flat membranes 40, affecting the filtration performance and overall quality of the membranes. Purifying the coating liquid through the filter 22 can ensure the purity of the coating liquid and provide a prerequisite for preparing high-quality flat membranes 40, significantly reducing the product rejection rate caused by impurities.

[0055] The metering pump 23 can accurately control the delivery amount of the coating liquid. During the membrane production process of the flat membranes 40, the amount of coating liquid needs to be accurately controlled, and too much or too little will affect the thickness uniformity of the membranes and the final performance. The metering pump 23 can deliver the coating liquid at a stable and accurate flow rate according to the membrane production process requirements, ensuring that the amount of coating liquid applied to the base film 30 is consistent each time, which helps to improve the stability and repeatability of the membrane production process, making the produced flat membranes 40 have high consistency in thickness, pore size distribution and other key indicators, and improving the stability of product quality.

[0056] In this embodiment, the filter 22 is located between the metering pump 23 and the dissolving kettle 11.

[0057] One end of the feeding pipe 21 is connected to the dissolving kettle 11.

[0058] In the embodiment, the filter 22 is a disc filter 22. The filtering accuracy is 100-750 mesh, and the disc filter 22 comprises a heating disc, and the heating temperature is 25-320°C.

[0059] Further, the feeding pipe has strong corrosion resistance and high temperature resistance, and the outer ring is wrapped with a heating block, and the heating temperature is 25-320°C.

[0060] Further, the metering pump 23 is a corrosion-resistant and high-temperature-resistant gear pump, the heating temperature is 25-320°C, and the metering pump 23 is installed on the lifting support 102 to continuously and stably supply the coating liquid to the coating head 41.

[0061] Referring to Figures 1-3 , and Figure 6 , the coating device 4 comprises the coating head 41 and the back roller 42. The coating head 41 is connected with the feeding device 2, the back roller 42 is located below the coating head 41, and a coating gap 43 for the base film 30 to pass through is formed between the lower end of the coating head 41 and the upper end of the back roller 42.

[0062] The coating head 41 is connected with the feeding device 2 and can stably receive and uniformly extrude the coating liquid. The back roller 42 is located below and forms the coating gap 43 with the lower end of the coating head 41. The coating gap 43 can be accurately adjusted according to the thickness of the base film 30 and the target coating thickness. When the base film 30 passes through the gap, the coating liquid extruded by the coating head 41 is uniformly coated on the surface of the base film 30 under the support and guidance of the back roller 42. This accurate coating method can avoid the accumulation or uneven coating of the coating liquid and ensure that the flat film 40 reaches an extremely high standard in thickness uniformity, thereby improving the quality stability and reliability of the flat film 40 product.

[0063] The back roller 42 can provide support and assistance during the coating process. Specifically, the back roller 42 provides stable running support for the base film 30 to ensure that the base film 30 remains flat during the coating process and avoids coating defects caused by shaking or wrinkling of the base film 30. The back roller 42 cooperates with the coating head 41 to apply appropriate pressure to the coating liquid, so that the coating liquid penetrates and adheres to the surface of the base film 30 better, thereby enhancing the bonding force between the coating liquid and the base film 30.

[0064] Further, the coating head 41 is provided with a heating module, and the heating temperature is 25-320°C.

[0065] In the embodiment, the back roller 42 is installed at the upper end of the curing tank 51.

[0066] In other embodiments, the back roller 42 can not be installed on the curing tank 51, but can be installed on other components.

[0067] Optionally, the temperature of the back roller 42 ranges from -10°C to 200°C, and preferably ranges from 0°C to 50°C.

[0068] Further, the back roller 42 is a hollow roller, and the temperature of the back roller 42 is controlled by filling the inner cavity of the back roller 42 with cooling liquid and heating liquid. The back roller 42 is connected to a high-low temperature die temperature machine, and the temperature of the back roller 42 ranges from -10°C to 200°C.

[0069] Referring to Figures 1-4 The film forming device further comprises a lifting device 10 connected to the film coating head 41 and configured to drive the film coating head 41 to ascend or descend. By driving the film coating head 41 to ascend or descend through the lifting device 10, the size of the film coating gap 43 can be flexibly adjusted to meet the requirements of different film thicknesses.

[0070] The lifting device 10 comprises a lifting bracket 102 and a lifting driving member 101 connected to the lifting bracket 102 and configured to drive the lifting bracket 102 to ascend or descend. The film coating head 41 is installed on the lifting bracket 102, and the batching device 1 and the feeding device 2 are also installed on the lifting bracket 102. Integrating the batching device 1, the feeding device 2, and the film coating head 41 on the same lifting bracket 102 can optimize the spatial layout of the film forming device. In actual production, especially in a workshop environment with limited space, such a compact design can reduce the equipment footprint and improve the utilization rate of the site. The connection paths between the devices are also shortened due to the centralized installation, for example, the length of the feeding pipeline 21 is reduced, which not only reduces the manufacturing cost of the equipment, but also reduces the energy loss and the risk of material residue of the coating liquid during transportation, further improving the operating efficiency of the equipment and the utilization rate of the coating liquid. In addition, the integrated lifting structure makes the equipment more convenient to install, debug, and maintain, and the staff do not need to adjust multiple scattered devices, which reduces the operation difficulty and maintenance cost.

[0071] In the embodiment, the lifting driving member 101 is a ball screw module.

[0072] In other embodiments, the lifting driving member 101 can also be any lifting device that can be used to drive the lifting bracket 102 to ascend or descend, such as a pneumatic cylinder, a hydraulic cylinder, a linear module, etc., which is not limited here.

[0073] In the embodiment, the lifting driving member 101 is installed on the outer side wall of the curing tank 51.

[0074] In other embodiments, the lifting driving member 101 can also be installed on other components instead of the curing tank 51.

[0075] Referring to Figures 1-4The curing device 5 provided by the embodiment of the utility model includes a curing groove 51, a second heating mechanism 52 and a first guide roller 53, the curing groove 51 is located below the film coating device 4 and is used for accommodating curing liquid, the second heating mechanism 52 is connected to the curing groove 51 and is used for heating the curing liquid, and the first guide roller 53 is arranged in the curing groove 51. The temperature of the curing liquid can be accurately controlled through the second heating mechanism 52, and the temperature of the curing liquid is maintained in the optimal curing interval.

[0076] The first guide roller 53 can guide and support the base film 30 when the base film 30 carries the film coating liquid into the curing groove 51 for curing. The first guide roller 53 can ensure that the base film 30 runs stably in the curing liquid, avoiding problems such as wrinkles, deviation or winding of the base film 30 in the curing process of the flat film 40. The stable running of the base film 30 is conducive to the full reaction and uniform curing of the film coating liquid in the curing liquid, further improving the quality of the flat film 40. Moreover, the presence of the first guide roller 53 makes the running path of the base film 30 in the curing groove 51 more controllable, better connecting the film coating device 4 and the subsequent cleaning device 6, and ensuring the continuity and stability of the entire film manufacturing process.

[0077] The type and temperature of the curing liquid can affect the structure and performance of the flat film 40. For example, the curing liquid can be at least one of water, ethanol, isopropyl alcohol, diethylene glycol and triethylene glycol.

[0078] Further, the temperature range of the curing liquid is 0-90 DEG C, and preferably, the temperature range is 10-50 DEG C.

[0079] The second heating mechanism 52 includes a first heating piece 521, and the first heating piece 521 is arranged in the curing groove 51.

[0080] Further, the temperature of the curing liquid in the curing groove 51 is controlled by the temperature change in the first heating piece 521, and the temperature range of the curing liquid in the curing groove 51 is 0-90 DEG C.

[0081] In the embodiment, the first heating piece 521 is a coil pipe.

[0082] Optionally, the number of the first guide rollers 53 can be one or more.

[0083] Preferably, the number of the first guide rollers 53 can be multiple, and the heights of any two first guide rollers 53 can be the same or different.

[0084] In the embodiment, the number of the first guide rollers 53 is three.

[0085] Referring to Figures 1-4The unwinding device 3 provided by the embodiment of the utility model includes an unwinding motor 31 and an unwinding roller 32, the unwinding roller 32 is used for being connected with the base film 30, the unwinding motor 31 is connected with the unwinding roller 32 and is used for driving the unwinding roller 32 to rotate around the central axis.

[0086] In the embodiment, the unwinding roller 32 is installed at the upper end of the curing tank 51.

[0087] In other embodiments, the unwinding roller 32 can also not be installed at the curing tank 51, but be installed at other components.

[0088] Referring to Figures 1-4 The film manufacturing equipment provided by the embodiment of the utility model further includes a tension roller 20; the cleaning device 6 includes a cleaning tank 61, a third heating mechanism 62 and a second guide roller 63, the cleaning tank 61 is located at one side of the curing tank 51 and is used for containing cleaning liquid, the curing tank 51 and the cleaning tank 61 are both located below the tension roller 20, the third heating mechanism 62 is connected to the curing tank 51 and is used for heating the cleaning liquid, and the second guide roller 63 is arranged in the cleaning tank 61; wherein the base film 30 passes through the first guide roller 53 to reach the tension roller 20, and then reaches the second guide roller 63 from the tension roller 20.

[0089] The tension roller 20 is used for monitoring the tension of the film material (i.e. the base film 30 and the flat film 40) in real time, and feeding back data to the winding device, so that the winding device actively adjusts the winding speed, thereby controlling the tension of the film material within a constant range.

[0090] The third heating mechanism 62 can accurately control the temperature of the cleaning liquid, and maintain the temperature of the cleaning liquid in an optimal cleaning interval.

[0091] The second guide roller 63 can play a guiding and supporting role when the base film 30 carries the coating liquid into the cleaning tank 61 for cleaning; the second guide roller 63 can ensure that the base film 30 runs stably in the curing liquid, and avoid problems such as wrinkling, deviation or winding of the film material (the base film 30 and the flat film 40 attached to the base film 30) in the cleaning process of the flat film 40; the existence of the second guide roller 63 makes the running path of the film material in the cleaning tank 61 more controllable, and better connects the curing device 5 and the subsequent winding device, thereby guaranteeing the continuity and stability of the entire film manufacturing process.

[0092] In the embodiment, the tension roller 20 is installed at the upper end of the curing tank 51 and the upper end of the cleaning tank 61.

[0093] In other embodiments, the tension roller 20 can also be installed only at the upper end of the curing tank 51, or only at the upper end of the cleaning tank 61, or not be installed at the upper end of the curing tank 51 and not be installed at the upper end of the cleaning tank 61, but be installed at other components.

[0094] The third heating mechanism 62 comprises a second heating element 621 arranged in the cleaning tank 61.

[0095] The temperature of the curing liquid in the curing tank 51 is controlled by the temperature change of the second heating element 621, and the temperature of the curing liquid in the curing tank 51 ranges from 0 to 90 DEG C.

[0096] In the embodiment, the second heating element 621 is an electric heating tube.

[0097] The cleaning liquid can be at least one of water, ethanol, isopropyl alcohol, diethylene glycol and triethylene glycol.

[0098] Further, the temperature of the cleaning liquid ranges from 25 DEG C to 90 DEG C, and preferably ranges from 30 DEG C to 60 DEG C.

[0099] Optionally, the number of the second guide rollers 63 can be one or more.

[0100] Preferably, the number of the second guide rollers 63 can be more, and the heights of any two second guide rollers 63 can be the same or different.

[0101] In the embodiment, the number of the second guide rollers 63 is three.

[0102] In the embodiment, the curing tank 51 and the cleaning tank 61 are arranged in the same box 50, and specifically, the inside of the box 50 is provided with a partition plate 60, the curing tank 51 is arranged on one side of the partition plate 60, and the cleaning tank 61 is arranged on the side of the partition plate 60 away from the curing tank 51.

[0103] In other embodiments, the curing tank 51 and the cleaning tank 61 can also be arranged in two boxes 50 respectively, that is, the inside space of one box 50 is the curing tank 51, and the inside space of the other box 50 is the cleaning tank 61.

[0104] In the embodiment, the tension roller 20 is located above the partition plate 60.

[0105] Referring to Figures 1-4 , the first winding device 7 comprises a first winding motor 71 and a first winding roller 72, the first winding roller 72 is arranged to be connected with the base film 30, and the first winding motor 71 is connected with the first winding roller 72 and is arranged to drive the first winding roller 72 to rotate around the central axis thereof.

[0106] In the embodiment, the first winding roller 72 is installed at the upper end of the cleaning tank 61.

[0107] In other embodiments, the first winding roller 72 can also not be installed on the cleaning tank 61, but can be installed on other components.

[0108] The second winding device 8 includes a second winding motor 81 and a second winding roller 82. The second winding roller 82 is connected to the flat film 40. The second winding motor 81 is connected to the second winding roller 82 and is used to drive the second winding roller 82 to rotate around its central axis.

[0109] In this embodiment, the second take-up roller 82 is installed at the upper end of the cleaning tank 61.

[0110] In some other embodiments, the second take-up roller 82 may not be mounted on the cleaning tank 61, but on other components.

[0111] In this embodiment, the first take-up roller 72 is located between the tension roller 20 and the second take-up roller 82.

[0112] See Figures 1-4 ,and Figure 7 The film-making equipment provided in this embodiment of the present invention also includes a leveling device 9, which includes a first leveling roller 91 and a second leveling roller 92. The first leveling roller 91 is located between the unwinding device 3 and the back roller 42, and the second leveling roller 92 is located below the first leveling roller 91. A leveling gap 93 for the base film 30 to pass through is formed between the lower end of the first leveling roller 91 and the upper end of the second leveling roller 92.

[0113] The leveling device 9, through the leveling gap 93 formed between the first leveling roller 91 and the second leveling roller 92, can adjust the flatness of the base film 30 during the conveying process. After the base film 30 is released from the unwinding device 3, it may become uneven due to its own winding stress, storage condition, and other factors. When passing through the leveling gap 93, the base film 30 is subjected to the synergistic effect of the two leveling rollers, and is uniformly stretched and leveled to ensure that the base film 30 entering the coating device 4 is in a flat state. The flatness of the base film 30 can ensure that the coating liquid is uniformly coated in the subsequent coating process, and avoid defects such as uneven coating thickness, bubbles, or missed coating caused by the undulation of the base film 30, thereby improving the yield of the flat film 40 product.

[0114] In this embodiment, the first leveling roller 91 and the second leveling roller 92 are installed at the upper end of the curing tank 51.

[0115] In some other embodiments, the first leveling roller 91 and the second leveling roller 92 may not be installed in the curing tank 51, but may be installed on other components.

[0116] In this embodiment, the leveling device 9 further includes a drive motor 94, which is connected to the first leveling roller 91 and can drive the first leveling roller 91 to rotate around its central axis.

[0117] The above merely is the preferred implementation form of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A film-forming device, characterized in that, include: A dispensing device (1) is used to prepare a coating liquid; Feeding device (2), which is connected to the dispensing device (1) and is used to convey the coating liquid; Unwinding device (3), the unwinding device (3) is used to unwind the base film (30); A coating device (4) is connected to the feeding device (2) and is used to coat the coating liquid onto the base film (30); Curing device (5), which is located below the coating device (4) and is used to cure the coating liquid coated on the base film (30) to form a flat film (40); A cleaning device (6) is provided on one side of the curing device (5) and is used to clean the flat film (40); The first winding device (7) is located above the cleaning device (6) and is used to wind up the base film (30); The second winding device (8) is located above the cleaning device (6) and is used to wind up the flat film (40).

2. The film-forming equipment according to claim 1, characterized in that, The batching device (1) includes a dissolving vessel (11) and a first heating mechanism (12), the first heating mechanism (12) being connected to the dissolving vessel (11) and used to heat the dissolving vessel (11).

3. The film-forming equipment according to claim 1, characterized in that, The feeding device (2) includes a feeding pipe (21), a filter (22) and a metering pump (23). One end of the feeding pipe (21) is connected to the batching device (1), the filter (22) is installed on the feeding pipe (21), and the metering pump (23) is installed on the feeding pipe (21).

4. The film-forming equipment according to claim 1, characterized in that, The coating device (4) includes a coating head (41) and a back roller (42). The coating head (41) is connected to the feeding device (2). The back roller (42) is located below the coating head (41). A coating gap (43) is formed between the lower end of the coating head (41) and the upper end of the back roller (42) for the base film (30) to pass through.

5. The film-forming equipment according to claim 4, characterized in that, It also includes a leveling device (9), which includes a first leveling roller (91) and a second leveling roller (92). The first leveling roller (91) is located between the unwinding device (3) and the back roller (42), and the second leveling roller (92) is located below the first leveling roller (91). A leveling gap (93) is formed between the lower end of the first leveling roller (91) and the upper end of the second leveling roller (92) for the base film (30) to pass through.

6. The film-forming equipment according to claim 4, characterized in that, It also includes a lifting device (10), which is connected to the coating head (41) and is used to drive the coating head (41) to rise or fall.

7. The film-forming equipment according to claim 6, characterized in that, The lifting device (10) includes a lifting bracket (102) and a lifting drive (101). The lifting drive (101) is connected to the lifting bracket (102) and is used to drive the lifting bracket (102) to rise or fall. The coating head (41) is mounted on the lifting bracket (102), and the dispensing device (1) and the feeding device (2) are mounted on the lifting bracket (102).

8. The film-forming equipment according to claim 1, characterized in that, The curing device (5) includes a curing tank (51), a second heating mechanism (52), and a first guide roller (53). The curing tank (51) is located below the coating device (4) and is used to contain the curing liquid. The second heating mechanism (52) is connected to the curing tank (51) and is used to heat the curing liquid. The first guide roller (53) is disposed in the curing tank (51).

9. The film-forming equipment according to claim 8, characterized in that, It also includes a tension roller (20); The cleaning device (6) includes a cleaning tank (61), a third heating mechanism (62), and a second guide roller (63). The cleaning tank (61) is located on one side of the curing tank (51) and is used to contain the cleaning liquid. Both the curing tank (51) and the cleaning tank (61) are located below the tension roller (20). The third heating mechanism (62) is connected to the curing tank (51) and is used to heat the cleaning liquid. The second guide roller (63) is located inside the cleaning tank (61). The base film (30) passes through the first guide roller (53) to the tension roller (20), and then from the tension roller (20) to the second guide roller (63).

10. The film-forming apparatus according to any one of claims 1-9, characterized in that, The unwinding device (3) includes an unwinding motor (31) and an unwinding roller (32). The unwinding roller (32) is used to connect with the base film (30). The unwinding motor (31) and the unwinding roller (32) are connected and used to drive the unwinding roller (32) to rotate around its central axis. The first winding device (7) includes a first winding motor (71) and a first winding roller (72). The first winding roller (72) is used to connect with the base film (30). The first winding motor (71) and the first winding roller (72) are connected and used to drive the first winding roller (72) to rotate around its central axis. The second winding device (8) includes a second winding motor (81) and a second winding roller (82). The second winding roller (82) is connected to the flat film (40). The second winding motor (81) and the second winding roller (82) are connected and used to drive the second winding roller (82) to rotate about its central axis.

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