A mylar film loading cleaning smoothing device

Abstract

The utility model discloses a mylar film loading cleaning smoothing device belongs to battery production technical field, aims at solving the cleaning and flatness problem of existing myalr film loading and unloading, include: film suction subassembly, dust removal smoothing subassembly and positioning component, film suction subassembly includes the film suction plate of mylar film adaptation, installs the negative pressure pipe on the film suction plate, is connected in the connecting plate of negative pressure pipe and is opened and has the negative pressure mouth of communication in the film suction plate on, dust removal smoothing subassembly sets up on the film suction subassembly, including the smoothing plate of installing on the film suction plate and the dust removal pipe of connecting in the connecting plate and corresponding film suction plate, positioning component sets up corresponding with film suction subassembly, including the positioning plate of corresponding with film suction plate and the positioning block of placing on the positioning plate. The utility model can carry out efficient cleaning and smoothing to myalr film when myalr film loading and unloading, and guarantee the flat state of film when loading and unloading is consistent, is favorable to improve the yield of encapsulation and subsequent welding.

Description

Technical Field

[0001] This utility model relates to a mylar membrane feeding, cleaning and smoothing device, belonging to the field of battery production technology. Background Technology

[0002] Batteries, as a common energy source, are widely used in daily life due to their small size and light weight. If the mylar film for square batteries is not cleaned during loading, foreign objects will be present on the film, which will cause welding explosions during subsequent welding. Secondly, if the mylar film for square batteries is not flat during loading, it will cause the film to fail to heat melt the stop frame of the cover plate during wrapping, resulting in wrapping failure and low yield in subsequent processing.

[0003] Currently, both the loading and unloading of Mylar membranes for square batteries face the problem of incomplete cleaning of foreign matter. Existing technologies typically use suction cleaning devices to suction the membrane, which can reduce foreign matter to some extent, but these devices cannot completely clean the entire Mylar membrane. Existing technologies use vacuum nozzles to effectively adsorb Mylar membranes during loading and unloading, but the positive and negative pressure cleaning effect is poor, so the yield of the coating still cannot be improved.

[0004] Furthermore, the loading and unloading of the Mylar film for square batteries faces the problem of unevenness. If the Mylar film is uneven during loading and unloading, it will cause the film to fail to melt onto the stop frame of the cover plate during wrapping, resulting in a high rate of welding spatter. Therefore, how to ensure the flatness and cleanliness of the Mylar film during loading and unloading has become a difficult technical problem to solve. Utility Model Content

[0005] Purpose of the utility model: The purpose of this utility model is to overcome the shortcomings of the prior art and provide a Mylar film loading, cleaning and smoothing device that can efficiently clean and smooth the Mylar film during loading and unloading, and ensure that the film is in a consistent flat state during loading and unloading, which is beneficial to improving the yield of coating and subsequent welding.

[0006] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution: A Mylar membrane feeding, cleaning, and smoothing device includes: The film suction assembly includes a film suction plate adapted to the Mylar membrane, a negative pressure tube mounted on the film suction plate, a connecting plate connected to the negative pressure tube, and a negative pressure port on the film suction plate that communicates with the negative pressure tube. A dust removal and smoothing component is installed on the film suction component, including a smoothing plate installed on the film suction plate and a dust removal pipe connected to the connecting plate and corresponding to the film suction plate; The positioning component is configured in accordance with the film suction component, including a positioning plate corresponding to the film suction plate and a positioning block placed on the positioning plate.

[0007] In this solution, the suction plate and negative pressure port in the suction assembly are used to perform negative pressure adsorption on the Mylar film to achieve loading and unloading; the dust removal and smoothing assembly removes dust and smooths the loaded Mylar film, achieving cleaning and leveling of the Mylar film at the same time; finally, the positioning assembly positions the loaded Mylar film to prevent the Mylar film from shifting during the dust removal and smoothing process, thereby improving the accuracy of loading.

[0008] Optionally, the suction plate is provided with a dust removal port corresponding to the dust removal pipe.

[0009] In this solution, the number and location of dust removal ports are matched with the dust removal pipe and covered by the Mylar membrane, without limitation; by opening dust removal ports on the suction plate, the airflow delivered by the dust removal pipe can be guided to the entire range of the Mylar membrane.

[0010] Optionally, a dust removal hood is connected to one end of the dust removal pipe near the dust removal port; The dust removal hood is conical, with a larger opening facing the mylar membrane and a smaller opening connected to the dust removal pipe; The end of the dust removal pipe furthest from the dust removal port is connected to an air supply device, which supplies air to the dust removal pipe.

[0011] In this solution, air is supplied to the dust removal pipe through an air supply device, and then the positive pressure airflow is diffused by the dust removal hood, expanding the blowing angle so that the positive pressure gas is dispersed in a large-diameter circle after passing through the dust removal hood, which can play a large-area dust removal and smoothing role on the entire Mylar membrane.

[0012] Optionally, the suction plate has a negative pressure channel inside that communicates with the negative pressure tube, and the negative pressure channel is used to connect all the negative pressure ports; The end of the negative pressure tube furthest from the suction plate is connected to the negative pressure device, which is used to deliver negative pressure airflow to the suction plate.

[0013] In this scheme, the negative pressure airflow is output from the negative pressure port, which can adsorb and load the Mylar membrane, thereby realizing the transfer and fixation of the Mylar membrane.

[0014] Optionally, the negative pressure channel extends to the edge of the suction plate and has a through hole at the edge of the suction plate, and a sealing component is connected to the through hole.

[0015] In this design, the negative pressure channel extends to the edge of the suction plate, allowing negative pressure airflow to be output from the edge ports. This enables the overall adsorption of the Mylar membrane, avoiding wrinkles that may occur in other areas due to adsorption in a single region. During normal use, the sealing assembly maintains the sealing function of the negative pressure channel. When dust accumulates in the negative pressure channel, the sealing assembly can be disassembled to clean the suction plate.

[0016] Optionally, the through hole is connected to the air supply device through an air supply pipe, which is used by the air supply device to deliver high-pressure airflow to the through hole. In this solution, the high-pressure airflow of the air supply device is used to blow air into the through hole, which can make the dust and impurities accumulated inside the suction plate flush out from the negative pressure port and other through holes, avoiding secondary pollution of the Mylar membrane by the dust accumulated during loading and unloading.

[0017] Optionally, the negative pressure ports are evenly distributed along the suction plate, and a vibration damping device is provided on the outer side of the negative pressure ports; The vibration damping device is made of an elastic material.

[0018] The vibration damping device in this solution includes one or more combinations of rubber pads and sponge pads. By utilizing the characteristics of elastic materials, it can reduce the damage and deformation of the Mylar membrane caused by negative pressure when the Mylar membrane is being loaded and unloaded.

[0019] Optionally, the smoothing plate is positioned at the edge of the suction plate.

[0020] In this solution, if there is no smoothing plate, when the suction plate places the Myalr membrane on the positioning plate, the inconsistent gas flow in the suction tube at the moment the negative pressure adsorption stops will cause wrinkles in the Myalr membrane that first contacts the positioning plate. In addition, using positioning blocks to fix the Myalr membrane will also cause wrinkles. Therefore, the design of the smoothing plate to flatten the Myalr membrane placed on the positioning plate can greatly reduce wrinkles caused by feeding and positioning.

[0021] Optionally, the number of positioning blocks is one or more, used to press the Mylar film firmly onto the positioning plate. This solution can maintain the positioning of the Mylar film during dust removal and smoothing processes, preventing the Mylar film from shifting.

[0022] Optionally, the positioning plate is provided with positioning pins, and the mylar film is provided with positioning holes that are adapted to the positioning pins, for positioning the mylar film to avoid deviation from the predetermined position.

[0023] The positioning pins in this solution can accurately position the Mylar film during feeding, ensuring it does not deviate from the predetermined position.

[0024] Beneficial effects: Compared with the prior art, this utility model has the following advantages: The Mylar membrane is purged with air and subjected to negative pressure adsorption using a membrane suction dust removal component. First, negative pressure is used to adsorb the Mylar membrane during loading and unloading. After the Mylar membrane is in place, air is supplied to the dust removal pipe, which outputs positive pressure airflow to remove dust from the Mylar membrane. At the same time, during the dust removal process, the positive pressure airflow can also achieve a smoothing effect on the Mylar membrane.

[0025] Setting a conical dust hood at the dust removal port can effectively expand the blowing angle and range, covering the mylar membrane area as much as possible.

[0026] After the Mylar membrane is loaded, it is positioned and pressed by the positioning plate and positioning block to prevent the Mylar membrane from deviating or wrinkling during the cleaning and smoothing process, which would affect the cleaning effect and the positioning accuracy of the loading.

[0027] The vibration damping device can prevent damage and deformation of the mylar membrane caused by negative pressure airflow and negative pressure outlet. Attached Figure Description

[0028] Figure 1 The diagram shown is a structural diagram of the Mylar membrane feeding, cleaning, and smoothing device of this utility model. Figure 2 The diagram shown is a structural schematic of the positioning block and positioning plate of this utility model; Figure 3 The diagram shown is a structural schematic of the dust removal assembly for film suction of this utility model; Figure 4 The diagram shown is a structural schematic of the suction plate of this utility model; Figure 5 The diagram shown is a structural diagram of the sealing screw of this utility model; Figure 6 The image shown is a top view of the mylar membrane of this invention.

[0029] In the diagram: 10, positioning plate; 20, positioning block; 30, positioning pin; 40, Mylar membrane; 401, positioning hole; 50, suction plate; 501, through hole; 502, dust removal port; 503, negative pressure channel; 60, dust removal pipe; 601, dust removal hood; 70, negative pressure pipe; 701, shock absorption device; 80, connecting plate; 90, sealing screw; 100, smoothing plate. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example

[0031] This embodiment provides a Mylar film 40 feeding, cleaning, and smoothing device, including: a film suction assembly, a dust removal and smoothing assembly, and a positioning assembly; as shown below. Figure 1 As shown, the film suction assembly is used to suction one side of the Mylar film 40. The dust removal and smoothing assembly is connected to the film suction assembly, and the positioning assembly corresponds to the film suction assembly and is used to fix and position the Mylar film 40. The film suction assembly includes: a film suction plate 50, a negative pressure tube 70, and a negative pressure port; the film suction plate 50 is close to and adapted to the Mylar film 40, the negative pressure tube 70 is installed on the film suction plate 50, the connecting plate 80 is connected to the negative pressure tube 70 and is located on the side of the film suction plate 50 away from the Mylar film 40, and the negative pressure port is opened on the film suction plate 50 and communicates with it through the film suction plate 50; the dust removal and smoothing assembly includes: a smoothing plate 100 and a dust removal tube 60; the smoothing plate 100 is installed on the film suction plate 50, and the dust removal tube 60 is connected to the connecting plate 80 and corresponds to the film suction plate 50; the positioning assembly includes: a positioning plate 10 and a positioning block 20, the positioning plate 10 corresponds to the film suction plate 50, and the positioning block 20 is placed on the positioning plate 10 for pressing the Mylar film 40 fed onto the positioning plate 10.

[0032] In this embodiment, the suction plate 50 and negative pressure port in the suction assembly are used to perform negative pressure adsorption on the Mylar film 40 to achieve loading and unloading; the dust removal and smoothing assembly removes dust and smooths the loaded Mylar film 40, achieving cleaning and leveling of the Mylar film 40 at the same time; finally, the positioning assembly positions the loaded Mylar film 40 to prevent the Mylar film 40 from shifting during the dust removal and smoothing process, thereby improving the accuracy of loading.

[0033] Optional, such as Figure 3 As shown, the suction plate 50 has a dust removal port 502 corresponding to the dust removal pipe 60.

[0034] In this embodiment, there are two dust removal pipes 60, and the number and position of the dust removal ports 502 match the dust removal pipes 60. All dust removal ports 502 can cover the entire Mylar membrane 40. Figure 3 The distance between the farthest sides of the two dust removal ports 502 is slightly less than the longer side of the mylar membrane 40. By opening two dust removal ports 502 on the suction plate 50 that cover the side length of the mylar membrane 40, the airflow delivered by the dust removal tube 60 can be directed to the full range of the mylar membrane 40.

[0035] Optional, such as Figure 3 The dust removal pipe 60 shown is connected to a dust removal hood 601 at one end near the dust removal port 502. The dust removal hood 601 is conical, with a larger opening facing the mylar membrane 40 and a smaller opening connected to the dust removal pipe 60. The end of the dust removal pipe 60 away from the dust removal port 502 is connected to an air supply device for supplying air to the dust removal pipe 60 through the air supply device.

[0036] In this embodiment, air is supplied to the dust removal pipe 60 through an air supply device. Then, taking advantage of the conical shape of the dust removal hood 601, the angle of the larger opening at the bottom in this embodiment is 30°. The positive pressure airflow is radially diffused through the larger opening, and the blowing angle is expanded so that the positive pressure gas is evenly and circumferentially dispersed after passing through the dust removal hood 601. This can play a large-scale dust removal and smoothing role on the entire Mylar membrane 40, ensuring the condition of the membrane during feeding and the membrane during unloading without wrinkles, while also ensuring that the surface of the unloaded membrane is free of foreign objects.

[0037] Optional, such as Figure 4 The suction plate 50 shown has a negative pressure channel 503 inside that communicates with the negative pressure tube 70. The negative pressure channel 503 is used to connect all negative pressure ports. The end of the negative pressure tube 70 away from the suction plate 50 is connected to the negative pressure device and is used to deliver negative pressure airflow to the suction plate 50.

[0038] In this embodiment, the negative pressure channels 503 are arranged in a straight line, intersecting along the edges of the dust removal port 502 and the suction plate 50, and the negative pressure channels 503 are interconnected. After the negative pressure device outputs negative pressure airflow, the negative pressure airflow is output from the negative pressure pipe 70 to the negative pressure port, which can adsorb the mylar membrane 40 when it is close to it, realizing loading and unloading.

[0039] Optional, such as Figure 4 As shown, the negative pressure channel 503 extends to the edge of the suction plate 50, and a through hole 501 is provided on the edge of the suction plate 50. A sealing component is connected to the through hole 501, such as... Figure 3 and Figure 4 As shown in this embodiment, a sealing screw 90 is used, and the through hole 501 is provided with a thread that is compatible with the sealing screw 90. The airtightness of the negative pressure channel 503 is ensured after it is closed by the tight fit with the sealing screw 90.

[0040] In this embodiment, the negative pressure channel 503 extends to the edge of the suction plate 50, which can output negative pressure airflow to the negative pressure port at the edge to achieve overall adsorption of the mylar membrane 40 and avoid wrinkling problems in other parts caused by single-point adsorption. During normal use, the sealing component maintains the sealing function of the negative pressure channel 503. When dust accumulates in the negative pressure channel 503, the sealing component is disassembled to clean the dust from the suction plate 50.

[0041] Optionally, the through hole 501 is connected to the air supply device through an air supply pipe, which is used by the air supply device to deliver high-pressure airflow to the through hole 501. In this embodiment, the high-pressure airflow of the air supply device is used to blow air into the through hole 501, which can make the dust and impurities accumulated inside the suction plate 50 flush out from the negative pressure port and other through holes 501, and avoid the dust accumulated during loading and unloading causing secondary pollution to the mylar membrane 40.

[0042] Optional, such as Figure 3 The negative pressure ports shown are evenly distributed along the suction plate 50, and a damping device is provided on the outer side of the negative pressure ports; the damping device is made of elastic material.

[0043] The vibration damping device in this embodiment is arranged around the negative pressure port and includes one or more combinations of rubber pads and sponge pads. By utilizing the characteristics of elastic materials, the damage and deformation of the mylar membrane 40 caused by negative pressure can be reduced when the mylar membrane 40 is being loaded and unloaded.

[0044] Optional, such as Figure 3 The smoothing plate 100 shown is located at the edge of the suction plate 50, and the distance from the smoothing plate 100 to the mylar film 40 is less than the distance from the damping device to the mylar film 40.

[0045] In this embodiment, when the suction plate 50 places the myalr membrane on the positioning plate 10, if there is no smoothing plate 100, at the moment the negative pressure adsorption stops, if the gas flow rate in the suction negative pressure tube 70 is inconsistent, it will cause wrinkles in the part of the myalr membrane that first contacts the positioning plate 10. In addition, when the positioning block 20 is used to fix the myalr membrane, it will also cause wrinkles in the myalr membrane. Therefore, the smoothing plate 100 is designed to flatten the myalr membrane placed on the positioning plate 10, which can greatly reduce the wrinkles caused by feeding and positioning.

[0046] Optional, such as Figure 2 The number of positioning blocks 20 shown is four, used to press the mylar film 40 firmly onto the positioning plate 10. This solution can maintain the positioning of the mylar film 40 during dust removal and smoothing processes, preventing the mylar film 40 from shifting.

[0047] Optional, such as Figure 2 The positioning plate 10 is provided with positioning pins 30, which are used to position the mylar film 40 to prevent it from deviating from the predetermined position.

[0048] The mylar membrane 40 in this embodiment is as follows: Figure 6 As shown, a positioning hole 401 is provided on it to match the positioning pin 30. Thus, the positioning pin 30 can accurately position the position of the mylar film 40 when it is being fed, so that it does not deviate from the predetermined position.

[0049] Working principle: During loading, the connecting plate 80 is assembled with the robotic arm. The robotic arm moves the film suction assembly, bringing the film suction plate 50 close to the Mylar film 40. Once in place, the negative pressure device is activated, supplying negative pressure to the negative pressure pipe 70 and the negative pressure port. The negative pressure port uses the negative pressure to attract the Mylar film 40 onto the film suction plate 50, and the shock absorption device 701 abuts against the Mylar film 40. The elastic material's properties buffer the impact of the negative pressure port on the Mylar film 40 under a large negative pressure, preventing deformation and damage to the Mylar film 40. Then, the film suction assembly is moved to the positioning assembly, and the Mylar film 40 on the shock absorption device 701 is placed on the positioning pin 30 of the positioning plate 10 for positioning. At this time, the other side of the Mylar film 40 is not in contact with the positioning plate 10, and the positioning block 20 is in a tilted state.

[0050] After airflow dust removal and smoothing after feeding, the air supply device is connected to the dust removal pipe 60 and the air supply device is turned on. The air supply device supplies air to the dust removal pipe 60. Then, by utilizing the conical shape of the dust removal hood 601, the positive pressure airflow is radially diffused, and the blowing angle is expanded so that the positive pressure gas is evenly and circumferentially dispersed after passing through the dust removal hood 601. This can play a large-scale dust removal and smoothing role on the entire Mylar membrane 40, ensuring that there are no wrinkles on the membrane after feeding, and at the same time, that there are no foreign objects on the membrane surface before unloading.

[0051] At this time, due to the action of the positive pressure airflow, the mylar membrane 40 comes into contact with the positioning plate 10, and the positioning block 20 is placed on the mylar membrane 40 to press the mylar membrane 40 to prevent it from shifting, until the preset dust removal time is reached, the dust removal positive pressure airflow is stopped and the positioning block 20 is removed.

[0052] Before unloading, the Mylar film 40 is smoothed out. As the shock-absorbing device 701 places the Mylar film 40 on the positioning plate 10, positive pressure gas is continuously blown. At this time, the Mylar film 40 is wrinkle-free. Since the height of the smoothing plate 100 is slightly lower than that of the shock-absorbing device 701, when the Mylar film 40 contacts the positioning plate 10, the robotic arm drives the suction plate 50 to descend until the smoothing plate 100 contacts the positioning plate 10. The shock-absorbing device 701 is compressed, and the smoothing plate 100 is higher than the shock-absorbing device 701 and abuts against the Mylar film 40. At this time, the smoothing plate 100 applies uniform pressure to the edge of the Mylar film 40, causing the Mylar film 40 to stretch towards the edge as a whole, thereby smoothing out any wrinkles that may exist inside. This effectively avoids the problem of wrinkles in the Mylar film 40 during unloading and ensures that there are no wrinkles during unloading.

[0053] Finally, the robotic arm lifts the film suction assembly, and the Mylar film 40 is unloaded by a special unloading device and transferred to the next station. Example

[0054] This embodiment provides a Mylar film feeding, cleaning, and smoothing device, with the same technical concept and working principle as Embodiment 1. It includes: a film suction assembly, a dust removal and smoothing assembly, and a positioning assembly. The film suction assembly is used to adsorb one side of the Mylar film. The dust removal and smoothing assembly is connected to the film suction assembly. The positioning assembly corresponds to the film suction assembly and is used to fix and position the Mylar film. The film suction assembly includes: a film suction plate, a negative pressure tube, and a negative pressure port. The film suction plate is close to and adapted to the Mylar film. The negative pressure tube is installed on the film suction plate. A connecting plate is connected to the negative pressure tube and located on the side of the film suction plate away from the Mylar film. The negative pressure port is located on the film suction plate and communicates with it. The dust removal and smoothing assembly includes: a smoothing plate and a dust removal tube. The smoothing plate is installed on the film suction plate, and the dust removal tube is connected to the connecting plate and corresponds to the film suction plate. The positioning assembly includes: a positioning plate and a positioning block. The positioning plate corresponds to the film suction plate, and the positioning block is placed on the positioning plate to press the Mylar film fed onto the positioning plate.

[0055] Optionally, in this embodiment, there are two or more dust removal pipes, and the number and position of dust removal ports match the dust removal pipes, so that all dust removal ports can cover the entire Mylar membrane.

[0056] Optionally, the sealing assembly further includes a sealing plug embedded in the through hole and fixed at the through hole by a sealing ring, which has a better sealing effect than Embodiment 1, but is not as convenient to disassemble as Embodiment 1.

[0057] In summary, this invention utilizes a suction-film dust removal assembly to perform air blowing and negative pressure adsorption on the Mylar membrane. First, negative pressure is used to adsorb and load the Mylar membrane. Once the membrane is properly loaded, air is supplied to the dust removal pipe, causing it to output positive pressure airflow to remove dust from the Mylar membrane. Simultaneously, during dust removal, the positive pressure airflow also smooths the Mylar membrane. A conical dust removal hood at the dust removal port effectively expands the blowing angle and range, covering the Mylar membrane as much as possible. After loading, the Mylar membrane is positioned and pressed by a positioning plate and block, preventing deviation and wrinkles during cleaning and smoothing, which would affect the cleaning effect and the positioning accuracy. A vibration damping device prevents damage and deformation of the Mylar membrane caused by the negative pressure airflow and negative pressure port.

[0058] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A Mylar membrane feeding, cleaning, and smoothing device, characterized in that, include: The film suction assembly includes a film suction plate adapted to the Mylar membrane, a negative pressure tube mounted on the film suction plate, a connecting plate connected to the negative pressure tube, and a negative pressure port on the film suction plate that communicates with the negative pressure tube. A dust removal and smoothing component is provided on the film suction component, including a smoothing plate mounted on the film suction plate and a dust removal pipe connected to the connecting plate and corresponding to the film suction plate; The positioning component is configured in accordance with the film suction component, including a positioning plate corresponding to the film suction plate and a positioning block placed on the positioning plate.

2. The Mylar membrane feeding, cleaning, and smoothing device according to claim 1, characterized in that, The suction plate has a dust removal port corresponding to the dust removal pipe.

3. The Mylar membrane feeding, cleaning, and smoothing device according to claim 2, characterized in that, A dust removal hood is connected to one end of the dust removal pipe near the dust removal port; The dust removal hood is conical, with a larger opening facing the mylar membrane and a smaller opening connected to the dust removal pipe; The end of the dust removal pipe furthest from the dust removal port is connected to an air supply device, which supplies air to the dust removal pipe.

4. The Mylar membrane feeding, cleaning, and smoothing device according to claim 1, characterized in that, The suction plate has a negative pressure channel inside that communicates with the negative pressure tube, and the negative pressure channel is used to connect all the negative pressure ports; The end of the negative pressure tube furthest from the suction plate is connected to the negative pressure device, which is used to deliver negative pressure airflow to the suction plate.

5. The Mylar membrane feeding, cleaning, and smoothing device according to claim 4, characterized in that, The negative pressure channel extends to the edge of the suction plate, and a through hole is provided on the edge of the suction plate, with a sealing component connected to the through hole.

6. The Mylar membrane feeding, cleaning, and smoothing device according to claim 5, characterized in that, The through hole is connected to the air supply device via an air supply pipe, and is used by the air supply device to deliver high-pressure airflow into the through hole.

7. The Mylar membrane feeding, cleaning, and smoothing device according to claim 4, characterized in that, The negative pressure ports are evenly distributed along the suction plate, and a vibration damping device is provided on the outside of the negative pressure ports; The vibration damping device is made of an elastic material.

8. The Mylar membrane feeding, cleaning, and smoothing device according to claim 1, characterized in that, The flat plate is located at the edge of the suction plate.

9. The Mylar membrane feeding, cleaning, and smoothing device according to claim 1, characterized in that, The number of positioning blocks is one or more, used to press the mylar film onto the positioning plate.

10. The Mylar membrane feeding, cleaning, and smoothing device according to claim 1, characterized in that, The positioning plate is provided with positioning pins, and the mylar membrane is provided with positioning holes that are adapted to the positioning pins.

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