Film rolling prevention liner for film coating machine

Abstract

The utility model relates to the technical field of film manufacturing, and provides a film rolling prevention liner for a film coating machine, which comprises a liner layer, a temperature control layer and a bottom supporting layer, and the temperature control layer is arranged between the liner layer and the bottom supporting layer; the temperature control layer comprises a first temperature control area and a second temperature control area, the second temperature control area surrounds the first temperature control area, and a heat-conducting medium is filled between the first temperature control area and the second temperature control area. A polymer material is borne through a liner layer, and coating operation of the polymer material is carried out in cooperation with a coating device. The film body is heated through the first temperature control area, and the temperature of the liner edge is controlled through the second temperature control area, so that the water evaporation speed of the film body located at the edge of the liner layer is slowed down, and the edge of the film body is prevented from curling. The liner layer and the temperature control layer are supported by the bottom supporting layer, so that the anti-film-rolling liner for the film coating machine provided by the utility model is convenient to move or carry.

Description

Technical Field

[0001] The utility model relates to the technical field of film-making equipment, in particular to an anti-rolling film gasket for a film coater. Background Art

[0002] In order to prepare an anion exchange membrane disclosed in the Chinese patent document with the authorization announcement number CN114989437B and the authorization announcement date of November 17, 2023, the doctor blade coating method is usually adopted, and the film coater is the main equipment for preparing the anion exchange membrane.

[0003] In the preparation of the anion exchange membrane, a film coater is usually used to uniformly coat a polymer material on a gasket until the required thickness and quality are achieved. Then, wait for the coated film to dry, which usually takes several hours or days, depending on the type and thickness of the polymer material.

[0004] As disclosed in a film coater in the Chinese patent document with the authorization announcement number CN220554758U and the authorization announcement date of March 5, 2024, the flatness of the plate surface of the coating gasket is adjusted through a leveling component, and the horizontal attitude of the coating substrate is detected through a horizontal detection component, so that uniform coating is achieved when the scraping knife slides on the coating substrate, effectively improving the uniformity of the coating thickness.

[0005] However, in the existing film coaters, it is not considered that during the drying process of the film body, since the moisture evaporation rate of the film body around the gasket is relatively fast, the dried film body at the edge of the gasket lacks the film body material in the outer direction of the gasket to provide tension for it, resulting in curling of the film body edge. Content of the Utility Model

[0006] To solve the above deficiencies in the prior art, the utility model provides an anti-rolling film gasket for a film coater, which includes a gasket layer, a temperature control layer, and a supporting layer, and the temperature control layer is arranged between the gasket layer and the supporting layer.

[0007] The temperature control layer includes a first temperature control zone and a second temperature control zone, the second temperature control zone surrounds the first temperature control zone, and a heat conduction medium is filled between the first temperature control zone and the second temperature control zone.

[0008] Further, the first temperature control zone includes a heat sink plate and heating resistance wires, and the heating resistance wires are distributed below the heat sink plate.

[0009] Further, the second temperature control zone is made of copper.

[0010] Further, a heat conduction medium is filled between the gasket layer and the temperature control layer.

[0011] Further, a temperature measuring device is arranged above the gasket layer.

[0012] Further, the temperature measuring device includes a temperature sensor and a sensor bracket. The temperature sensor is detachably connected to one end of the sensor bracket, and the other end of the sensor bracket is connected to the side of the second temperature control area away from the first temperature control area.

[0013] Further, a copper pipe is provided on the side of the second temperature control area away from the first temperature control area, and the copper pipe is connected to the cooling and exchange device.

[0014] Further, the cooling and exchange device includes a water tank, a water pump, a water pipe, and a coolant. The water pump is connected to one end of the copper pipe through the water pipe to pump the coolant contained in the water tank into the copper pipe, and the other end of the copper pipe is connected to the water tank through the water pipe to drain the coolant in the copper pipe into the water tank.

[0015] Further, the lining layer is made of glass.

[0016] Further, the bottom supporting layer is made of glass.

[0017] Based on the above, compared with the prior art, the anti - curling film gasket for a coating machine provided by the present utility model uses the lining layer to carry the polymer material and cooperates with the coating device to perform the coating operation of the polymer material. The first temperature control area provides heating for the film body, and the second temperature control area controls the temperature of the gasket edge, thereby slowing down the moisture evaporation rate of the film body at the gasket edge and preventing the film body edge from curling. By filling a heat - conducting medium between the first temperature control area and the second temperature control area, efficient heat transfer between the first temperature control area and the second temperature control area is ensured. The bottom supporting layer supports the lining layer and the temperature control layer to facilitate the movement or handling of the anti - curling film gasket for a coating machine provided by the present utility model.

[0018] Other features and beneficial effects of the present utility model will be described in the subsequent description, and part of them will become obvious from the description or be understood by implementing the present utility model. The objectives and other beneficial effects of the present utility model can be achieved and obtained through the structures specifically pointed out in the description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings; in the following description of the positional relationship of the drawings, unless otherwise specified, the direction shown in the drawings of the components is used as the reference.

[0020] Figure 1 It is a schematic structural diagram of the first embodiment of the anti - curling film gasket for a coating machine provided by the present utility model;

[0021] Figure 2 Structural schematic diagram of the first embodiment of the temperature control layer provided by the present utility model;

[0022] Figure 3 Structural schematic diagram of the second embodiment of the temperature control layer provided by the present utility model;

[0023] Figure 4 Structural schematic diagram of the second embodiment of the anti - curling film gasket for a coating machine provided by the present utility model;

[0024] Figure 5 Structural schematic diagram of the third embodiment of the anti - curling film gasket for a coating machine provided by the present utility model.

[0025] Reference numerals:

[0026] 100 Liner layer 200 Temperature control layer 210 First temperature control zone

[0027] 211 Heat - sink plate 212 Heating resistance wire 220 Second temperature control zone

[0028] 221 Copper tube 230 Heat - conducting medium 240 Temperature - measuring device

[0029] 241 Temperature sensor 242 Sensor bracket 300 Underlying layer

[0030] 400 Cooling and exchange device 410 Water tank 420 Water pump

[0031] 430 Water pipe 440 Cooling liquid Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model; the technical features designed in different implementation manners of the present utility model described below can be combined with each other as long as they do not conflict with each other; all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that all terms used in the present utility model (including technical terms and scientific terms) have the same meanings as those commonly understood by those of ordinary skill in the art to which the present utility model pertains, and should not be construed as a limitation to the present utility model; it should be further understood that the terms used in the present utility model should be construed as having meanings consistent with their meanings in the context of this specification and the relevant art, and should not be understood in an idealized or overly formal sense, unless otherwise clearly defined in the present utility model.

[0034] For ease of understanding, the working steps and principles of the coating machine for preparing the anion exchange membrane are explained below:

[0035] 1. Adjust the coating machine to appropriate thickness and speed settings and prepare the polymer material to be coated.

[0036] 2. Add the polymer material to the coating device on the coating machine.

[0037] 3. Start the coating machine and evenly coat the polymer material on the gasket.

[0038] 4. Wait for the film body to dry and peel the film body from the gasket to obtain the anion exchange membrane.

[0039] During the process of using the coating machine to prepare the anion exchange membrane, the gasket is the carrier for carrying the polymer material. The polymer is evenly coated on the gasket according to the set thickness through a wire bar or a doctor blade in the coating device.

[0040] To improve the efficiency of preparing the anion exchange membrane, the anion exchange membrane after coating is usually heated or dried to accelerate the evaporation of moisture in the film body and promote the formation of the film body.

[0041] Please refer to Figure 1 , in order to reduce the moisture evaporation rate of the film body at the edge of the gasket, the present utility model provides an anti-rolling film gasket for a coating machine, which includes a gasket layer 100, a temperature control layer 200, and a supporting layer 300. The temperature control layer 200 is arranged between the gasket layer 100 and the supporting layer 300.

[0042] Please refer to Figure 1 for reference Figure 2 , the temperature control layer 200 includes a first temperature control zone 210 and a second temperature control zone 220. The second temperature control zone 220 surrounds the first temperature control zone 210, and a heat conduction medium 230 is filled between the first temperature control zone 210 and the second temperature control zone 220.

[0043] In specific implementation, the anti - curling film gasket for a coating machine provided by the present utility model sequentially includes a lining layer 100, a temperature - control layer 200, and a supporting layer 300 from top to bottom. The lining layer 100 is used to carry polymer materials and cooperate with the coating device of the coating machine to perform the coating operation of polymer materials. The first temperature - control area 210 in the temperature - control layer 200 heats the film body. The second temperature - control area 220 in the temperature - control layer 200 controls the temperature at the edge of the lining layer 100, thereby slowing down the moisture evaporation rate of the film body in the edge area of the lining layer 100 and preventing the film body from curling at the edge. The first temperature - control area 210 and the second temperature - control area 220 are filled with a heat - conducting medium 230 to improve the heat transfer efficiency between the first temperature - control area 210 and the second temperature - control area 220. The supporting layer 300 is used to support the lining layer 100 and the temperature - control layer 200 for moving or carrying the anti - curling film gasket for a coating machine provided by the present utility model.

[0044] Specifically, the heat - conducting medium 230 is any one of silicone grease or phase - change material.

[0045] Due to the flexible material characteristics of silicone grease or phase - change material, the gaps between two different contact surfaces are filled, and high - efficiency heat transfer between different contact surfaces is achieved through the good thermal conductivity of silicone grease or phase - change material itself.

[0046] In this embodiment, the lining layer 100 carries polymer materials and cooperates with the coating device to perform the coating operation of polymer materials. The first temperature - control area 210 provides heating for the film body, the second temperature - control area 220 controls the temperature at the edge of the gasket, thereby slowing down the moisture evaporation rate of the film body at the edge of the gasket. By filling the heat - conducting medium 230 between the first temperature - control area 210 and the second temperature - control area 220, high - efficiency heat transfer between the first temperature - control area 210 and the second temperature - control area 220 is ensured. The supporting layer 300 supports the lining layer 100 and the temperature - control layer 200 for moving or carrying the anti - curling film gasket for a coating machine provided by the present utility model.

[0047] Please combine Figure 1 and Figure 2 Refer to Figure 3 , in order to make the film body heated evenly, the first temperature - control area 210 provided by the present utility model includes a heat - sink plate 211 and heating resistance wires 212, and the heating resistance wires 212 are distributed below the heat - sink plate 211.

[0048] Preferably, the heating resistance wires 212 are evenly distributed below the heat - sink plate 211.

[0049] During specific implementation, the top of the heat pipe 211 is in contact with the bottom surface of the cushion layer 100. Heat is provided to the heat pipe 211 through the thermal resistance wires 212 evenly distributed below the heat pipe 211, enabling the heat pipe 211 to transfer heat evenly to the cushion layer 100, thereby heating the film body coated on the top surface of the cushion layer 100 and preventing the film body from deforming due to uneven local heating.

[0050] In this embodiment, the heat generated by the thermal resistance wires 212 is quickly and evenly transferred to the cushion layer 100 through the heat pipe 211 to achieve uniform heating of the film body and reduce or lower the risk of deformation of the film body during the heating and drying process.

[0051] In a preferred embodiment, the second temperature control region 220 is made of copper, and the heat pipe 211 is a VC heat pipe.

[0052] During specific implementation, the second temperature control region 220 is made of either copper or aluminum. The top surface of the second temperature control region 220 is in contact with the bottom surface of the cushion layer 100. When the heat generated by the first temperature control region 210 is transferred to the second temperature control region 220 through the heat conduction medium 230, since the second temperature control region 220 is located below the edge of the cushion layer 100 and the heat conduction speed of copper and aluminum is higher than that of the heat pipe 211, a uniform heat gradient is generated in the region of the cushion layer 100 above the second temperature control region 220. The temperature on the side closer to the first temperature control region 210 is higher than the side farther from the first temperature control region 210.

[0053] It should be noted that the heat pipe 211 is a VC heat pipe, and its thermal conductivity is usually 0.035 - 0.044 W / (m·K). The thermal conductivity of aluminum is 237 W / (m·K). The thermal conductivity of copper is 413 W / (m·K). The thermal conductivity of silicone grease is usually 5.2 W / (m·K), and the thermal conductivity of the phase change material is usually 1.5 W / (m·K).

[0054] In this embodiment, due to the different heat conduction efficiencies of copper and aluminum and the heat pipe 211, the temperature on the side of the second temperature control region 220 farther from the first temperature control region 210 is lower than the side closer to the first temperature control region 210. At the same time, since the top surfaces of both the first temperature control region 210 and the second temperature control region 220 are in contact with the bottom surface of the cushion layer 100, while the cushion layer 100 supplies heat to the film body, the heat received by the film body in the edge region of the cushion layer 100 is lower than that in the central region of the cushion layer 100, thereby reducing the drying speed of the film body in the edge region of the cushion layer 100 and preventing the film body from curling at the edges.

[0055] In a preferred embodiment, a heat conduction medium 230 is filled between the cushion layer 100 and the temperature control layer 200.

[0056] During specific implementation, the space between the cushion layer 100 and the temperature control layer 200 is filled with a heat-conducting medium 230 to improve the heat transfer efficiency between the cushion layer 100 and the temperature control layer 200.

[0057] Please refer to Figure 4 , in order to measure the surface temperature of the film body, a temperature measuring device 240 is provided above the cushion layer 100 of the present utility model to detect the surface temperature of the film body.

[0058] The temperature measuring device 240 includes a temperature sensor 241 and a sensor bracket 242. The temperature sensor 241 is detachably connected to one end of the sensor bracket 242, and the other end of the sensor bracket 242 is connected to the side of the second temperature control area 220 away from the first temperature control area 210.

[0059] During specific implementation, the temperature sensor 241 adopts an infrared temperature sensor. The temperature sensor 241 is arranged above the cushion layer 100 through the sensor bracket 242, so that the temperature sensor 241 can measure the surface temperature of the film body located on the top surface of the cushion layer 100, and further provide a numerical reference for the heating temperature generated by the first temperature control area 210 and perform dynamic adjustment. One end of the sensor bracket 242 is detachably connected to the temperature sensor 241, and the other end is connected to the side of the second temperature control area 220 away from the first temperature control area 210, thus avoiding interference of the temperature sensor 241 and / or the sensor bracket 242 with the film coating operation.

[0060] Please refer to Figure 5 , in order to prevent the temperature of the second temperature control area from being too high, a copper pipe 221 is arranged on the side of the second temperature control area 220 away from the first temperature control area 210, and the copper pipe 221 is connected to the cooling exchange device 400.

[0061] The cooling exchange device 400 includes a water tank 410, a water pump 420, a water pipe 430, and a coolant 440. The water pump 420 is connected to one end of the copper pipe 221 through the water pipe 430 to pump the coolant 440 contained in the water tank 410 into the copper pipe 221, and the other end of the copper pipe 221 is connected to the water tank 410 through the water pipe 430 to discharge the coolant 440 in the copper pipe 221 into the water tank 410.

[0062] During specific implementation, a copper pipe 221 is arranged on the side of the second temperature control area 220 away from the first temperature control area 210, and one end of the copper pipe 221 is connected to the water pump 420 through the water pipe 430, so that the coolant 440 in the water tank 410 is pumped into the copper pipe 221 by the water pump 420, thereby taking away the heat in the copper pipe 221. The other end of the copper pipe 221 is connected to the water pipe 430 to discharge the coolant 440 into the water tank 410, so that the coolant 440 continuously circulates to take away the heat in the copper pipe 221.

[0063] In this embodiment, a copper tube 221 disposed on the side of the second temperature control zone 220 away from the first temperature control zone 210 cooperates with a cooling and exchange device 400 to reduce the temperature on the side of the second temperature control zone 220 away from the first temperature control zone 210, so as to control the drying rate of the film body located in the edge area of the cushion layer 100. Thanks to the recycled use of the coolant 440, the cooling and exchange device 400 can continuously control the temperature on the side of the second temperature control zone 220 away from the first temperature control zone 210, so that a constant heat gradient is maintained between the first temperature control zone 210 and the second temperature control zone 220, which is conducive to improving the preparation efficiency of the film body.

[0064] In a preferred embodiment, the cushion layer 100 is made of glass.

[0065] Specifically, the cushion layer 100 can be made of either glass or a silicon wafer. Glass and silicon wafers have good chemical stability, preventing the cushion layer 100 from reacting with the coating material.

[0066] In another preferred embodiment, the support layer 300 is made of glass.

[0067] Specifically, using glass for the support layer 300 facilitates observing the fixing condition of the heating resistance wire 212 in the first temperature control zone 210. When moving or after long-term heating, it is possible to observe through the support layer 300 whether the resistance wire has fallen off, so as to promptly repair the fallen resistance wire and ensure the heating efficiency of the first temperature control zone 210.

[0068] In summary, compared with the prior art, the anti-rolling film cushion for a coating machine provided by the present utility model uses the cushion layer 100 to carry the polymer material and cooperates with a coating device to perform the coating operation of the polymer material. The first temperature control zone 210 provides heating for the film body, and the second temperature control zone 220 controls the temperature at the edge of the cushion layer 100, thereby slowing down the moisture evaporation rate of the film body located at the edge of the cushion layer 100 and preventing the film body from curling at the edge. By filling a heat-conducting medium 230 between the first temperature control zone 210 and the second temperature control zone 220, efficient heat transfer between the first temperature control zone 210 and the second temperature control zone 220 is ensured. The support layer 300 supports the cushion layer 100 and the temperature control layer 200 to facilitate the movement or handling of the anti-rolling film cushion for a coating machine provided by the present utility model.

[0069] In addition, those skilled in the art should understand that although there are many problems in the prior art, each embodiment or technical solution of the present utility model can be improved in only one or several aspects, and it is not necessary to solve all the technical problems listed in the prior art or the background art at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be regarded as a limitation to that claim.

[0070] Although terms such as cushion layer, temperature control layer, temperature control area, heat pipe vapor chamber, heating wire, copper pipe, heat conduction medium, temperature measuring device, temperature sensor, sensor bracket, bottom supporting layer, cooling and exchanging device, coolant, etc. are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model; the terms "first", "second", etc. (if any) in the description, claims and above-mentioned drawings of the embodiments of the present utility model are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An anti-roll film liner for a film coating machine, characterized in that: It comprises a cushion layer, a temperature control layer and a supporting layer, wherein the temperature control layer is arranged between the cushion layer and the supporting layer; The temperature control layer includes a first temperature control zone and a second temperature control zone, the second temperature control zone surrounds the first temperature control zone, and a heat conductive medium is filled between the first temperature control zone and the second temperature control zone.

2. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: The first temperature control zone includes a heat spreader and a thermal resistance wire, and the thermal resistance wire is distributed below the heat spreader.

3. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: The second temperature control zone is made of copper.

4. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: The heat-conducting medium is filled between the cushion layer and the temperature-control layer.

5. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: A temperature measuring device is arranged above the cushion layer.

6. The anti-roll film liner for a film coating machine according to claim 5, characterized in that: The temperature measuring device includes a temperature sensor and a sensor bracket. The temperature sensor is detachably connected to one end of the sensor bracket, and the other end of the sensor bracket is connected to a side of the second temperature control zone away from the first temperature control zone.

7. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: A copper tube is provided on a side of the second temperature control zone away from the first temperature control zone, and the copper tube is connected to a cooling exchange device.

8. The anti-roll film liner for a film coating machine according to claim 7, characterized in that: The cooling exchange device includes a water tank, a water pump, a water pipe, and a coolant. The water pump is connected to one end of the copper pipe through the water pipe to pump the coolant in the water tank into the copper pipe. The other end of the copper pipe is connected to the water tank through the water pipe to discharge the coolant in the copper pipe into the water tank.

9. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: The lining layer is made of glass.

10. The anti-roll film liner for a film coating machine according to claim 1, characterized in that: The supporting layer is made of glass.

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