Experimental coating machine for testing

Abstract

The utility model discloses an experimental coating machine for testing, which relates to the technical field of coating and comprises a rack, and a scraper is arranged on the rack. The clamping device is arranged on the working platform, and the clamping device is used for clamping a thin film; a plurality of adsorption holes are formed in the working platform, and the vacuum generation device is used for enabling hole cavities of the adsorption holes to be in a negative pressure state so that the film can be adsorbed to the working platform; the linear driving device can drive the working platform to move forwards, so that the coating can be scraped and coated on the film by the scraper; and an inlet is formed in the box wall of the drying box and used for allowing the working platform and the clamping device to penetrate through so that the film can enter the drying box, and the hot air heating device communicates with the drying box so that the coating on the film can be dried. According to the experimental coating machine for testing, the step that an operator carries a thin film can be omitted, and the test efficiency of the thin film can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, and particularly relates to an experimental coater for testing. Background Art

[0002] An experimental coater is a device used in laboratory or small-scale production environments, specifically for testing and developing various coating processes and formulations. It can simulate the process flow of a large-scale coating production line. By testing the simulated coated film, it helps researchers and engineers optimize coating formulations, process parameters, and solve problems in actual production. An experimental coater for testing usually includes a working platform, clips, and a doctor blade. First, the operator places the film to be coated on the working platform and uses the clips to clamp one end of the film to prevent the film from falling off the working platform. Then the operator pours the coating onto the film, and then the doctor blade starts to move, causing relative movement between the doctor blade and the film. The doctor blade can scrape the coating onto the film to complete the coating step of the film.

[0003] After the film coating is completed, the operator removes the film from the working platform and places it on a clamping fixture dedicated for drying. Then the operator moves the film and the clamping fixture into a drying oven for the drying step of the coating. After the coating is dried, the operator conducts relevant tests on the film and the coating on the film. This method of transporting the film and the clamping fixture into the drying oven together increases the time between the coating step and the drying step, which is not conducive to improving the testing efficiency of the film. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an experimental coater for testing, which is beneficial to improving the testing efficiency of the film.

[0005] The experimental coater for testing according to an embodiment of the utility model includes:

[0006] A frame, on which a doctor blade is provided;

[0007] A working platform and a clamping device, the working platform is arranged below the doctor blade, the gap between the doctor blade and the working platform is used for the coating and the film to pass through, the clamping device is arranged on the working platform, the clamping device is used for clamping the front and rear ends of the film, so that the upper surface of the working platform can support the film, and the working platform is slidably connected to the frame in the front-rear direction;

[0008] A vacuum generating device is provided on the frame. A plurality of adsorption holes are formed in the working platform, and the vacuum generating device is connected to the plurality of adsorption holes. The vacuum generating device is used to make the cavities of the plurality of adsorption holes in a negative pressure state, so that the thin film is adsorbed on the upper surface of the working platform and the thin film is kept flat.

[0009] A linear driving device is provided on the frame. The linear driving device can drive the working platform to move forward, so that the scraper can scrape the coating on the thin film.

[0010] An oven and a hot air heating device are provided on the frame. The oven is provided in front of the scraper. An inlet is formed in the wall of the oven, and the inlet is used for the working platform and the clamping device to pass through, so that the thin film on the working platform can enter the oven. The hot air heating device is connected to the oven, and the hot air heating device raises the temperature in the oven, so that the coating on the thin film is dried.

[0011] It has at least the following beneficial effects:

[0012] When corresponding thin film coating tests need to be carried out, the operator can first place the thin film to be coated on the working platform. Then the operator can control the clamping device to clamp the front and rear ends of the thin film, so that the thin film is supported by the working platform to avoid shaking of the thin film. After the thin film is clamped, the operator pours the coating for coating on a part of the thin film on the working platform, and then the linear driving device is started. The linear driving device can drive the working platform to move forward, so that a relative displacement is generated between the scraper and the thin film. Under the action of the scraper, the coating on the thin film can be evenly scraped on the thin film by the scraper, thus completing the coating of the thin film. After the thin film coating is completed, the linear driving device continues to drive the working platform to move forward, so that the working platform, the clamping device and the thin film on the working platform can pass through the inlet on the oven and enter the oven together. After the thin film to be dried moves into the oven, the hot air heating device is started, and the hot air heating device can raise the temperature in the oven, so that the coating on the thin film is dried.

[0013] After the coating on the thin film is dried, the linear driving device drives the working platform to move backward and exit the oven. The operator only needs to control the clamping device to loosen the front and rear ends of the thin film, and the operator can send the coated and dried thin film into the subsequent detection instrument for testing. This experimental coating machine for testing can immediately send the thin film into the oven for coating drying after the thin film coating is completed, eliminating the step of the operator carrying the thin film, shortening the time between the coating step and the drying step, and thus being beneficial to improving the testing efficiency of the thin film.

[0014] An experimental coater for testing according to an embodiment of the present utility model further includes a bottom plate. The working platform is arranged on the bottom plate. The bottom plate is connected to the output end of the linear driving device. The bottom plate can pass through the entrance. The clamping device includes two clamping components. Both clamping components are arranged on the bottom plate. The two clamping components are respectively arranged on the front and rear sides of the working platform. Both clamping components are arranged below the upper surface of the working platform. The two clamping components are respectively used for clamping the front and rear ends of the film, so that the upper surface of the working platform can support the film.

[0015] For the experimental coater for testing according to an embodiment of the present utility model, the clamping component includes an upper clamping plate, a lower clamping plate and a first fastener. The lower clamping plate is arranged on the bottom plate. A first threaded hole is formed in the lower clamping plate. A first through hole is formed in the upper clamping plate. The gap between the upper clamping plate and the lower clamping plate is used for the film to pass through. The first fastener passes through the first through hole and is threadedly connected to the inner wall of the first threaded hole. The upper end of the first fastener can press against the upper clamping plate, so that the upper clamping plate and the lower clamping plate clamp the film.

[0016] For the experimental coater for testing according to an embodiment of the present utility model, the clamping component further includes a first holding part. The first fastener is a first bolt. The nut of the first bolt can press against the upper clamping plate, so that the upper clamping plate and the lower clamping plate clamp the film. The first holding part is connected to the nut of the first bolt.

[0017] An experimental coater for testing according to an embodiment of the present utility model further includes a tensioning device. The tensioning device is arranged on the bottom plate. The tensioning device is arranged below the upper surface of the working platform. The tensioning device is arranged between the working platform and any one of the clamping components. The tensioning device is used for keeping the film under a tensioning force.

[0018] For the experimental coater for testing according to an embodiment of the present utility model, the tensioning device includes a tensioning roller, a first swing arm and a second swing arm. The lower ends of the first swing arm and the second swing arm are rotatably connected to the bottom plate respectively. The left and right ends of the tensioning roller are rotatably connected to the upper ends of the first swing arm and the second swing arm respectively. The gap between the tensioning roller and the bottom plate is used for the film to pass through. The tensioning roller is used for pressing against the film, so that the film is kept under a tensioning force.

[0019] An experimental coater for testing according to an embodiment of the present invention, the tensioning device further includes a second stud and a second fastener, the second stud is arranged on the bottom plate, a second through hole is formed in the lower end of the first swing arm, the second stud passes through the second through hole, the second fastener is threadedly connected to the second stud, and the second fastener can press against the first swing arm to fix the first swing arm on the bottom plate.

[0020] An experimental coater for testing according to an embodiment of the present invention, arc chamfers are provided at both the front and rear ends of the working platform, and both of the arc chamfers are used to support the film.

[0021] An experimental coater for testing according to an embodiment of the present invention further includes a shielding device, the shielding device is arranged on the drying box, and the shielding device can shield the entrance.

[0022] An experimental coater for testing according to an embodiment of the present invention, the shielding device includes a baffle and a lifting cylinder, the cylinder body of the lifting cylinder is arranged on the drying box, the piston rod of the lifting cylinder is connected to the baffle, and the lifting cylinder can drive the baffle to descend so that the baffle shields the entrance.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0024] The following further describes the present invention in conjunction with the drawings and embodiments, where:

[0025] Figure 1 is a schematic structural diagram of an experimental coater for testing according to an embodiment of the present invention;

[0026] Figure 2 is Figure 1 an enlarged partial structural view of part A in

[0027] Figure 3 is a schematic structural diagram of the bottom plate, working platform, clamping device, tensioning device and film in an experimental coater for testing according to an embodiment of the present invention;

[0028] Figure 4 is Figure 3 an enlarged partial structural view of part B in

[0029] Figure 5 is a schematic structural diagram of the bottom plate, working platform, clamping device and tensioning device in an experimental coater for testing according to an embodiment of the present invention;

[0030] Reference Signs:

[0031] Frame 100; bottom plate 110; working platform 120; arc chamfer 121; adsorption hole 122;

[0032] Clamping device 200; clamping assembly 210; upper clamping plate 211; lower clamping plate 212; first fastener 213; first holding part 214;

[0033] Tensioning device 300; first swing arm 310; tensioning roller 320; second fastener 330; second holding part 340;

[0034] Spacing adjusting device 400; scraper 410;

[0035] Drying oven 500; inlet 510;

[0036] Hot air heating device 600;

[0037] Blocking device 700; lifting cylinder 710; baffle 720. Detailed implementation manner

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0040] In the description of the present invention, "plurality" means more than two. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0042] Referring to Figures 1 to 3 , the experimental coating machine for testing according to the embodiment of the present invention includes:

[0043] A frame 100 is provided with a doctor blade 410 thereon.

[0044] A working platform 120 and a clamping device 200, the working platform 120 is arranged below the doctor blade 410, and the gap between the doctor blade 410 and the working platform 120 is used for the coating and the film to pass through. The clamping device 200 is arranged on the working platform 120, and the clamping device 200 is used for clamping the front and rear ends of the film, so that the upper surface of the working platform 120 can support the film, and the working platform 120 is slidably connected to the frame 100 in the front-rear direction.

[0045] A vacuum generating device is arranged on the frame 100. A plurality of adsorption holes 122 are formed in the working platform 120. The vacuum generating device is communicated with the plurality of adsorption holes 122. The vacuum generating device is used to make the cavities of the plurality of adsorption holes 122 in a negative pressure state, so that the film is adsorbed on the upper surface of the working platform 120 and the film is kept flat.

[0046] A linear driving device is arranged on the frame 100. The linear driving device can drive the working platform 120 to move forward, so that the doctor blade 410 can scrape the coating on the film.

[0047] An oven 500 and a hot air heating device 600, the oven 500 is arranged on the frame 100, the oven 500 is arranged in front of the doctor blade 410, and an inlet 510 is formed in the box wall of the oven 500. The inlet 510 is used for the working platform 120 and the clamping device 200 to pass through, so that the film on the working platform 120 can enter the oven 500. The hot air heating device 600 is communicated with the oven 500. The hot air heating device 600 is used to make the hot air circulate in the oven 500 and the hot air heating device 600, so that the coating on the film is dried.

[0048] It can be understood that when corresponding film coating tests need to be carried out, the operator can first place the film to be coated on the working platform 120. Then, the operator can control the clamping device 200 to clamp the front and rear ends of the film, so that the film is supported by the working platform 120 to prevent the film from shaking. After the film is clamped, the operator pours the coating used for coating on a part of the film on the working platform 120. Then, the linear driving device is started. The linear driving device can drive the working platform 120 to move forward, so that a relative displacement is generated between the doctor blade 410 and the film. Under the action of the doctor blade 410, the coating on the film can be evenly scraped onto the film by the doctor blade 410, thereby completing the coating of the film. After the film coating is completed, the linear driving device continues to drive the working platform 120 to move forward, so that the working platform 120, the clamping device and the film on the working platform 120 can pass through the inlet 510 on the drying oven 500 and enter the drying oven 500 together. After the film to be dried moves into the drying oven 500, the hot air heating device 600 is started. The hot air heating device 600 can increase the temperature in the drying oven 500, so that the coating on the film is dried.

[0049] After the coating on the film is dried, the linear driving device drives the working platform 120 to move backward and withdraw from the drying oven 500. The operator only needs to control the clamping device 200 to loosen the front and rear ends of the film, and the operator can send the film with coating and drying completed into the subsequent detection instrument for testing. This experimental coating machine for testing can send the film into the drying oven 500 for coating drying immediately after the film coating is completed, saving the step of the operator carrying the film and shortening the time between the coating step and the drying step, thereby being beneficial to improving the testing efficiency of the film.

[0050] As an embodiment of the present invention, refer to Figure 1, the hot air heating device 600 includes a heating fan, a fresh air duct, and an air inlet duct. The air outlet end of the heating fan is connected to the drying box 500 through the air inlet duct, and the air inlet end of the heating fan is connected to the outside through the fresh air duct. The heating fan is used to generate hot air and send the hot air into the drying box 500. It can be understood that the heating fan can suck the gas from the outside, heat the gas, and then send it into the drying box 500 through the air inlet duct to form hot air, so that the temperature in the drying box 500 rises, and the coating can be dried. The hot air heating device 600 further includes an exhaust duct and an exhaust fan. One end of the exhaust duct is connected to the drying box 500, and the other end of the exhaust duct is connected to the outside. The exhaust fan is arranged in the exhaust duct. After the exhaust fan is started, the exhaust fan can suck the gas in the drying box 500 to the outside through the exhaust duct, so that the gas carrying steam and volatile substances in the drying box 500 can be quickly discharged from the drying box 500, which is conducive to the drying of the coating. Specifically, the air inlet duct is arranged at the lower end of the drying box 500, and the exhaust duct is arranged at the upper end of the drying box 500. The hot air heating device 600 is a common heating device, which will not be further elaborated here.

[0051] Reference Figures 3 to 5 , the experimental coater for testing further includes a bottom plate 110. The working platform 120 is arranged on the bottom plate 110. The bottom plate 110 is connected to the output end of the linear driving device. The bottom plate 110 can pass through the inlet 510. The clamping device 200 includes two clamping components 210. Both clamping components 210 are arranged on the bottom plate 110. The two clamping components 210 are respectively arranged on the front and rear sides of the working platform 120. Both clamping components 210 are arranged below the upper surface of the working platform 120. The two clamping components 210 are respectively used to clamp the front and rear ends of the film, so that the upper surface of the working platform 120 can support the film. It can be understood that the working platform 120 is connected to the output end of the linear driving device through the bottom plate 110, and the two clamping components 210 are connected to the working platform 120 through the bottom plate 110. When a corresponding film coating test needs to be carried out, the operator can first place the film to be coated on the working platform 120, and then the operator can control the two clamping components 210 to clamp the front and rear ends of the film respectively. Both clamping components 210 are arranged below the upper surface of the working platform 120, which can avoid the clamping components 210 colliding with the doctor blade 410 during the movement of the working platform 120, so that the coating process can proceed smoothly. On the other hand, the two clamping components 210 can prevent the film from falling off the working platform 120, so that the drying process can also proceed smoothly.

[0052] Reference Figure 4, the clamping assembly 210 includes an upper clamping plate 211, a lower clamping plate 212 and a first fastener 213. The lower clamping plate 212 is disposed on the bottom plate 110. A first threaded hole is formed in the lower clamping plate 212, and a first through hole is formed in the upper clamping plate 211. The gap between the upper clamping plate 211 and the lower clamping plate 212 is for the film to pass through. The first fastener 213 passes through the first through hole and is threadedly connected to the inner wall of the first threaded hole. The upper end of the first fastener 213 can press against the upper clamping plate 211 to clamp the film between the upper clamping plate 211 and the lower clamping plate 212. It can be understood that when one end of the film needs to be clamped, the operator can first loosen the first fastener 213 and pick up the upper clamping plate 211, so that the gap between the upper clamping plate 211 and the lower clamping plate 212 increases. Then the operator extends one end of the film between the upper clamping plate 211 and the lower clamping plate 212 and tightens the first fastener 213. The upper end of the first fastener 213 can press against the upper clamping plate 211, so that the upper clamping plate 211 and the lower clamping plate 212 can clamp one end of the film.

[0053] Specifically, two first through holes are formed in the upper clamping plate 211, two first threaded holes are formed in the lower clamping plate 212, the number of the first fasteners 213 is two, and the two first fasteners 213 respectively pass through the two first through holes and are respectively threadedly connected to the inner walls of the two first threaded holes.

[0054] Reference Figure 4 , the clamping assembly 210 further includes a first holding portion 214. The first fastener 213 is a first bolt, and the nut of the first bolt can press against the upper clamping plate 211 to clamp the film between the upper clamping plate 211 and the lower clamping plate 212. The first holding portion 214 is connected to the nut of the first bolt. It can be understood that the operator can rotate the first bolt through the first holding portion 214 to facilitate the operator to loosen or clamp the film.

[0055] Reference Figure 3 And Figure 4 , the experimental coater for testing further includes a tensioning device 300. The tensioning device 300 is disposed on the bottom plate 110, below the upper surface of the working platform 120, and between the working platform 120 and any one of the clamping assemblies 210. The tensioning device 300 is used to keep the film under tension. Specifically, the tensioning device 300 includes a tensioning roller 320, a first swing arm 310 and a second swing arm. The lower ends of the first swing arm 310 and the second swing arm are rotatably connected to the bottom plate 110 respectively. The left and right ends of the tensioning roller 320 are rotatably connected to the upper ends of the first swing arm 310 and the second swing arm respectively. The gap between the tensioning roller 320 and the bottom plate 110 is for the film to pass through. The tensioning roller 320 is used to press against the film to keep the film under tension.

[0056] It can be understood that the film passes through the gap between the tensioning roller 320 and the bottom plate 110. The tensioning roller 320 can approach or move away from the bottom plate 110 through the first swing arm 310 and the second swing arm. The tensioning roller 320 presses against the film. When the tensioning roller 320 swings towards the direction close to the bottom plate 110, the pressing force between the tensioning roller 320 and the film increases, that is, the tension of the film increases; when the tensioning roller 320 swings towards the direction away from the bottom plate 110, the pressing force between the tensioning roller 320 and the film decreases, that is, the tension of the film decreases. In this way, the film can maintain a certain tension, so that the film can closely adhere to the upper surface of the working platform 120, and also makes the film keep flat. This not only ensures the consistency of the coating thickness, but also avoids the film from shaking during the drying process, and ensures the quality of the film after drying.

[0057] Reference Figure 4 , the tensioning device 300 further includes a second stud and a second fastener 330. The second stud is arranged on the bottom plate 110. A second through hole is formed in the lower end of the first swing arm 310. The second stud passes through the second through hole. The second fastener 330 is threadedly connected to the second stud. The second fastener 330 can press against the first swing arm 310 to fix the first swing arm 310 on the bottom plate 110. The operator can adjust the tension of the film by swinging the tensioning roller 320, so that the film can closely adhere to the upper surface of the working platform 120 with the most suitable tension, and further makes part of the film on the upper surface of the working platform 120 keep flat and tensioned. After the tension of the film is adjusted, the operator can tighten the second fastener 330 to make the second fastener 330 press against the second swing arm, so that the second swing arm is fixed on the bottom plate 110, and then the fixing of the first swing arm 310, the second swing arm and the tensioning roller 320 is completed, so as to avoid the change of the film tension caused by the shaking of the tensioning roller 320 during the scraping and coating process, and also avoid the shaking of the tensioning roller 320 during the drying process.

[0058] As an embodiment of the present invention, the tensioning device 300 further includes a second holding part 340. The second holding part 340 is connected to the second fastener 330. It can be understood that the second fastener 330 can be a nut. The nut is connected to the second holding part 340. The operator can rotate the nut through the second holding part 340, so that the nut can press against the second swing arm, and then the first swing arm 310 is fixed, which is convenient for the operator to rotate the nut.

[0059] Reference Figure 2 and Figure 4, arc chamfers 121 are provided at both the front and rear ends of the working platform 120, and both of the two arc chamfers 121 are used to support the thin film. It can be understood that after the thin film maintains a certain tension, there will be a certain pressure between the thin film and the working platform 120. By providing arc chamfers 121 at the front and rear ends of the working platform 120, it can prevent the sharp edges at the front and rear ends of the working platform 120 from scratching the thin film, so as to ensure that the subsequent tests can be carried out normally. It should be explained that the part of the thin film supported on the upper surface of the working platform 120 is mainly used for subsequent thin film tests.

[0060] Reference Figure 1 and Figure 2 , the experimental coating machine for testing further includes a shielding device 700. The shielding device 700 is provided on the drying oven 500, and the shielding device 700 can shield the inlet 510. Specifically, the shielding device 700 includes a baffle 720 and a lifting cylinder 710. The cylinder body of the lifting cylinder 710 is provided on the drying oven 500, the piston rod of the lifting cylinder 710 is connected to the baffle 720, and the lifting cylinder 710 can drive the baffle 720 to descend so that the baffle 720 shields the inlet 510. It can be understood that during the coating process of the thin film, the lifting cylinder 710 drives the baffle 720 to rise, so that the baffle 720 opens the inlet 510. After the thin film coating is completed, the linear driving device drives the bottom plate 110 to continue moving forward, so that the bottom plate 110, the working platform 120, the clamping device, the tensioning device 300 and the thin film move into the drying oven 500 together. Then the lifting cylinder 710 drives the baffle 720 to descend, so that the baffle 720 can shield the inlet 510, making the inner cavity of the drying oven 500 form a relatively closed space, preventing the hot air in the drying oven 500 from leaking out from the inlet 510, and keeping the temperature in the drying oven 500 stable, which is beneficial to the drying of the coating. After the coating is dried, then the lifting cylinder 710 drives the baffle 720 to rise to open the inlet 510, and the linear driving device drives the bottom plate 110 to continue moving backward, so that the bottom plate 110, the working platform 120, the clamping device, the tensioning device 300 and the thin film pass through the inlet 510 and leave the drying oven 500 together.

[0061] As an embodiment of the present invention, the experimental coating machine for testing further includes two slide rails and two sliders. The two slide rails are both parallel to the front-rear direction, the two slide rails are provided on the frame 100, the two sliders are both provided on the bottom plate 110, and the two sliders are respectively slidably connected to the two slide rails. The linear driving device includes a nut, a lead screw and a motor. The nut is provided on the bottom plate 110, the lead screw is parallel to the front-rear direction, one end of the lead screw is rotatably connected to the frame 100, the motor is provided on the frame 100, and the output end of the motor is connected to the other end of the lead screw. The motor is used to drive the lead screw to rotate.

[0062] As an embodiment of the present utility model, the vacuum generating device includes a vacuum pump and a suction pipe. An air cavity is formed on the working platform 120, and the air cavity is communicated with a plurality of adsorption holes 122. The suction end of the vacuum pump is communicated with the air cavity. It is not difficult to understand that after the vacuum pump is started, the vacuum pump can suck the gas in the air cavity, so that the air cavity and the chambers of the plurality of adsorption holes 122 are in a negative pressure state, and then the thin film is adsorbed on the upper surface of the working platform 120, which helps to ensure the flatness of the thin film and enables the coating to be evenly scraped and coated on the thin film.

[0063] As an embodiment of the present utility model, the experimental coater for testing further includes a spacing adjusting device 400. The spacing adjusting device 400 is arranged on the frame 100, and the scraper 410 is connected to the frame 100 through the spacing adjusting device 400. The spacing adjusting device 400 can adjust the gap height between the scraper 410 and the working platform 120, thereby adjusting the thickness of the coating. The spacing adjusting device 400 is a common adjusting device and will not be further described here.

[0064] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0065] Certainly, the present utility model is not limited to the above-described embodiments. Those skilled in the art can also make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An experimental coater for testing, characterized in that, Comprising: A frame, on which a scraper is provided; A working platform and a clamping device, the working platform is arranged below the scraper, and the gap between the scraper and the working platform is used for the coating and the film to pass through. The clamping device is arranged on the working platform, and the clamping device is used for clamping the front and rear ends of the film, so that the upper surface of the working platform can support the film. The working platform is slidably connected to the frame in the front-rear direction; A vacuum generating device, the vacuum generating device is arranged on the frame. A plurality of suction holes are formed on the working platform, and the vacuum generating device is communicated with the plurality of suction holes. The vacuum generating device is used to make the cavities of the plurality of suction holes in a negative pressure state, so that the film is adsorbed on the upper surface of the working platform and the film is kept flat; A linear driving device, the linear driving device is arranged on the frame, and the linear driving device can drive the working platform to move forward, so that the scraper can scrape the coating on the film; An oven and a hot air heating device, the oven is arranged on the frame, the oven is arranged in front of the scraper, and an inlet is formed on the box wall of the oven. The inlet is used for the working platform and the clamping device to pass through, so that the film on the working platform can enter the oven. The hot air heating device is communicated with the oven, and the hot air heating device raises the temperature in the oven, so that the coating on the film is dried.

2. The experimental coater for testing according to claim 1, characterized in that: It further includes a bottom plate, the working platform is arranged on the bottom plate, and the bottom plate is connected to the output end of the linear driving device. The bottom plate can pass through the inlet. The clamping device includes two clamping components, and both clamping components are arranged on the bottom plate. The two clamping components are respectively arranged on the front and rear sides of the working platform, and both clamping components are arranged below the upper surface of the working platform. The two clamping components are respectively used for clamping the front and rear ends of the film, so that the upper surface of the working platform can support the film.

3. The experimental coater for testing according to claim 2, characterized in that: The clamping component includes an upper clamping plate, a lower clamping plate and a first fastener, the lower clamping plate is arranged on the bottom plate, a first threaded hole is formed on the lower clamping plate, a first through hole is formed on the upper clamping plate, and the gap between the upper clamping plate and the lower clamping plate is used for the film to pass through. The first fastener passes through the first through hole and is threadedly connected to the inner wall of the first threaded hole. The upper end of the first fastener can press against the upper clamping plate, so that the upper clamping plate and the lower clamping plate clamp the film.

4. The experimental coater for testing according to claim 3, characterized in that: The clamping component further includes a first holding part, the first fastener is a first bolt, and the nut of the first bolt can press against the upper clamping plate, so that the upper clamping plate and the lower clamping plate clamp the film. The first holding part is connected to the nut of the first bolt.

5. The experimental coating machine for testing according to claim 2, characterized in that: It further includes a tensioning device which is arranged on the bottom plate, below the upper surface of the working platform, between the working platform and any one of the clamping assemblies, and is used to keep the film under tension.

6. The experimental coater for testing according to claim 5, characterized in that: The tensioning device includes a tensioning roller, a first swing arm and a second swing arm. The lower ends of the first swing arm and the second swing arm are rotatably connected to the bottom plate respectively. The left and right ends of the tensioning roller are rotatably connected to the upper ends of the first swing arm and the second swing arm respectively. The gap between the tensioning roller and the bottom plate is for the film to pass through, and the tensioning roller is used to press against the film to keep the film under tension.

7. The experimental coater for testing according to claim 6, characterized in that: The tensioning device further includes a second stud and a second fastener. The second stud is arranged on the bottom plate. A second through hole is formed in the lower end of the first swing arm. The second stud passes through the second through hole, and the second fastener is threadedly connected to the second stud. The second fastener can press against the first swing arm to fix the first swing arm on the bottom plate.

8. The experimental coater for testing according to claim 5, characterized in that: Arc chamfers are provided at both the front and rear ends of the working platform, and both arc chamfers are used to support the film.

9. The experimental coating machine for testing according to claim 1, characterized in that: It further includes a shielding device which is arranged on the drying box and can shield the inlet.

10. The experimental coater for testing according to claim 9, characterized in that: The shielding device includes a baffle and a lifting cylinder. The cylinder body of the lifting cylinder is arranged on the drying box, and the piston rod of the lifting cylinder is connected to the baffle. The lifting cylinder can drive the baffle to descend so that the baffle shields the inlet.

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