Coating atomization device

Abstract

The invention discloses a coating atomization device which comprises a spray head assembly and a supporting assembly, the spray head assembly comprises a conveying pipeline, a spray head part and a connecting assembly, the conveying pipeline is used for conveying an atomizing agent needed by atomization, the spray head part is used for atomizing the atomizing agent on a paper product, and the connecting assembly is used for communicating the spray head part with the conveying pipeline; the supporting assembly comprises a supporting frame and a fixing beam, the fixing beam is used for containing the nozzle piece, and the supporting frame is used for being connected with and supporting the fixing beam. The nozzle piece is arranged on the fixed beam, and the connecting assembly is located between the nozzle and the conveying pipeline. According to the coating atomization device provided by the embodiment of the invention, the atomization device is arranged at the front end of the scraper type coating device, so that the service life of the used coating scraper can be prolonged, and the reel replacement success rate is improved. Meanwhile, the design of the spray head piece and the transportation pipeline is convenient for workers to find out a series of data such as the optimal water vapor mixing ratio, the atomization spraying height and the optimal atomization time of each paper type, so that the cost is saved, and the burden of the workers is relieved.

Description

Technical Field

[0001] The present application relates to the field of atomization machinery, and in particular to a coating atomization device. Background Art

[0002] Traditional wet papermaking is divided into fourdrinier papermaking machine, rotary screen papermaking machine and gap papermaking machine according to the structure of the paper sheet forming part. Both the fourdrinier and rotary screen use single-sided dehydration when forming the paper sheet, which easily causes the difference between the two sides of the paper sheet, while the gap papermaking machine uses spraying for double-sided dehydration at the same time, which effectively reduces the difference between the two sides of the paper sheet and improves the uniformity of the paper sheet.

[0003] In the existing scraper coating, the coating scraper will first contact the paper web during coating operation, and then the coating will be sprayed onto the paper surface. Before the coating reaches the paper, the coating scraper rubs against the high-speed moving paper surface, which then generates high temperature. The high-temperature friction will cause uneven wear of the coating on the blade edge, and will also wear and deform the blade body under the coating, further causing wear marks on the coated paper surface, that is, the phenomenon of blade burning, which affects the printing effect. The same scraper will be more seriously burned after multiple coatings.

[0004] In addition, in the actual production operation for many years, it is found that the success rate of water jet roll changing cannot be guaranteed to be 100% during the paper machine roll changing process. This is mainly because the dry paper web lacks toughness and is easily broken, resulting in roll changing failure, which hinders the improvement of paper machine efficiency. Summary of the invention

[0005] The embodiment of the present application provides a coating atomization device, comprising:

[0006] A nozzle assembly, the nozzle assembly comprising a transport pipeline, a nozzle component and a connection component, the transport pipeline is used to transport the atomizer required for atomization, the nozzle component is used to atomize the atomizer on the paper product, and the connection component is used to connect the nozzle component and the transport pipeline;

[0007] A support assembly, the support assembly comprising a support frame and a fixed beam, the fixed beam is used to accommodate the nozzle component, and the support frame is used to connect and support the fixed beam;

[0008] The nozzle component is arranged on the fixed beam, and the connecting assembly is located between the nozzle and the transport pipeline.

[0009] In some embodiments, the nozzle component includes a nozzle, a nozzle connector and a nozzle fixing component, the connecting assembly includes a joint and a connecting pipeline, the nozzle connector is used to connect the joint with the nozzle, the nozzle fixing component and the nozzle are located on opposite sides of the nozzle fixing component, and the connecting pipeline is used to connect the joint with the transport pipeline.

[0010] In some embodiments, the joint includes a first joint and a second joint; the fixed beam includes a first opening, a second opening and a third opening, the first opening is arranged in the direction of the fixed beam toward the paper product, the nozzle passes through the first opening and the opening direction is toward the paper product; the nozzle connecting piece is located in the fixed beam, the second opening and the third opening are located on both sides of the first opening in a vertical direction, and the second opening and the third opening are arranged opposite to each other, the first joint is connected to the nozzle connecting piece through the second opening, and the second joint is connected to the nozzle connecting piece through the third opening.

[0011] In some embodiments, the transport pipeline includes a first transport pipeline and a second transport pipeline, the first transport pipeline is used to transport atomized liquid, and the second transport pipeline is used to transport atomized gas; the connecting pipeline includes a first connecting pipeline and a second connecting pipeline, the first transport pipeline is connected to the first connector through the first connecting pipeline, and the second transport pipeline is connected to the second connector through the second connecting pipeline.

[0012] In some embodiments, the nozzle fixing member is fixed to the nozzle connecting member, and is clamped with the fixing beam in the opposite direction of the first opening. The nozzle fixing member is used to fix the nozzle assembly to the fixing beam, thereby achieving stability of the nozzle assembly.

[0013] In some embodiments, the coating atomization device also includes a cover assembly, a moving assembly and a slide assembly. The cover assembly is located in the spraying direction of the nozzle and is used to cover the nozzle assembly; the moving assembly is arranged to be connected and cooperated with the cover assembly, and the moving assembly is used for opening and closing the cover assembly.

[0014] In some embodiments, the cover plate assembly includes a first baffle, a second baffle, a cover plate body and a baffle connector, wherein the first baffle and the second baffle are arranged on both sides of the cover plate body parallel to the spraying direction of the nozzle, and the baffle connector is located at the top of the cover plate body, and the baffle connector is used to connect and fix the first baffle and the second baffle.

[0015] In some embodiments, the slide assembly includes a fixed rod and a slide, the fixed rod is connected to the support frame, the slide is provided with a hole that penetrates the slide and matches the shape of the fixed rod, the fixed rod passes through the slide through the hole, so that the slide can slide horizontally along the fixed rod; the slide is connected to the cover body, the slide is used to support the cover assembly and limit the horizontal movement of the cover assembly.

[0016] In some embodiments, the motion assembly includes a connecting rod, a pin and a cylinder, the connecting rod includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are connected via the pin, the cylinder is fixed on a fixed body, the first connecting rod is connected to the cylinder, the second connecting rod is connected to the cover body, the pin is connected to the support frame, forming a fulcrum for the rotation of the connecting rod; when the cylinder is extended, the connecting rod makes a circular motion around the pin hole, driving the cover assembly to make a linear motion along the fixed rod, thereby completing the opening and closing movement of the cover assembly.

[0017] In some embodiments, the first baffle is provided with an avoidance groove, the vertical projection area of ​​the avoidance groove is larger than the vertical projection area of ​​the nozzle assembly extending out of the first opening, and the avoidance groove is used to prevent the cover plate assembly from colliding and interfering with the nozzle assembly when the cover plate assembly moves in a straight line.

[0018] The coating atomization device provided in the embodiment of the present application can prolong the service life of the coating blade after use and improve the success rate of roll replacement by arranging the atomization device at the front end of the blade coating. At the same time, the design of the nozzle and the transportation pipeline facilitates the staff to find out a series of data such as the best water vapor mixing ratio, the atomization spray height, the best atomization time for each paper type, etc., thereby saving costs and reducing the burden on the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the coating atomization device of the present application;

[0021] Figure 2 yes Figure 1 The embodiment does not provide a schematic diagram of the local position relationship of the connecting pipeline;

[0022] Figure 3 yes Figure 1 A schematic diagram of the partial structure of the coating atomization device;

[0023] Figure 4 yes Figure 1 Schematic diagram of the position relationship between the fixed beam and the nozzle assembly of the embodiment;

[0024] Figure 5 yes Figure 1 Schematic diagram of another perspective of the position relationship between the fixed beam and the nozzle assembly of the embodiment;

[0025] Figure 6 This is a schematic diagram of the local position relationship of another embodiment of the cover assembly without connecting pipelines

[0026] Figure 7 is a schematic structural diagram of a cover assembly, a motion assembly and a carriage assembly in another embodiment;

[0027] Figure 8 yes Figure 7 A schematic structural diagram of a cover plate assembly in an embodiment;

[0028] Fig. 9 yes Figure 7 Schematic diagram of the structure of the cover assembly, the motion assembly and the slide assembly from another perspective of the embodiment. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

[0031] The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] The embodiment of the present application aims to overcome the defects and shortcomings in the prior art and to provide a coating atomization device, which is intended to solve the problems of friction between the coating scraper and the high-speed moving paper surface, which in turn generates high temperature. The high-temperature friction will cause uneven wear of the coating on the blade, and the water jet type roll changing success rate cannot be guaranteed to be 100%.

[0034] like Figure 1 and Figure 2 As shown, Figure 1 It is a schematic diagram of the overall structure of an embodiment of the coating atomization device of the present application. Figure 2 yes Figure 1 The embodiment does not provide a schematic diagram of the local position relationship of the connecting pipeline. The embodiment of the present application provides a coating atomization device, which includes: a nozzle assembly 10 and a support assembly 20. Among them, the nozzle assembly 10 includes a transport pipeline 100, a nozzle component 110 and a connection component 120. The transport pipeline 100 is used to transport the atomizer required for atomization, the nozzle component 110 is used to atomize the atomizer on the paper product 60, and the connection component 120 is used to connect the nozzle component 110 and the transport pipeline 100; the support assembly 20 includes a support frame 200 and a fixed beam 210, the fixed beam 210 is used to accommodate the nozzle component 110, and the support frame 200 is used to connect and support the fixed beam 210. Optionally, the fixed beam 210 is a rectangular hollow square tube, and the support frame 200 is an L-shaped support frame 200. In some embodiments, the paper product 60 is located above the nozzle assembly 10, and the atomizer transported by the transport pipeline 100 includes water and steam. The nozzle assembly 10 sprays the water and steam mixed with the atomizer to atomize the paper product 60 above. The nozzle component 110 is disposed on the fixed beam 210, and the connecting component 120 is located between the nozzle assembly 10 and the transport pipeline 100.

[0035] like Figure 3 As shown, Figure 3 yes Figure 1A schematic diagram of a partial structure of a coating atomization device, wherein the nozzle component 110 includes a nozzle 1100, a nozzle connector 1110 and a nozzle fixture 1120, the connection assembly 120 includes a joint 1200 and a connecting pipeline 1210, the nozzle connector 1110 is used to connect the joint 1200 and the nozzle 1100, the nozzle fixture 1120 and the nozzle 1100 are located on opposite sides of the nozzle fixture 1120, and the connecting pipeline 1210 is used to connect the joint 1200 and the transport pipeline 100. In some embodiments, the transport pipeline 100 is located below the nozzle component 110, so that the transport atomized liquid can be transported to the nozzle component 110 without affecting the use of the nozzle component 110 by the transport pipeline 100.

[0036] like Figure 4 and Figure 5 As shown, Figure 4 yes Figure 1 Schematic diagram of the position relationship between the fixed beam and the nozzle assembly of the embodiment, Figure 5 yes Figure 1 Schematic diagram of another perspective of the position relationship between the fixed beam and the nozzle assembly of the embodiment, wherein: Figure 4 and Figure 5 The nozzle assembly 10 in the figure is only a part, and there are multiple nozzle assemblies on the fixed beam 210. The joint 1200 includes a first joint 1200a and a second joint 1200b; the fixed beam 210 includes a first opening 2100, a second opening 2110 and a third opening 2120. The first opening 2100 is arranged in the direction of the fixed beam 210 toward the paper product 60, and the nozzle 1100 passes through the first opening 2100 and the opening direction is toward the paper product 60; the nozzle connector 1110 is located in the fixed beam 210, and the second opening 2110 and the third opening 2120 are located on both sides of the surface where the first opening 2100 is located in a vertical direction, and the second opening 2110 and the third opening 2120 are arranged opposite to each other. Optionally, the nozzle connector 1110 is a rectangular square tube, and holes are arranged in the square tube for the atomizer to flow in the nozzle connector 1110. The first joint 1200a is connected to the nozzle connector 1110 through the second opening 2110, and the second joint 1200b is connected to the nozzle connector 1110 through the third opening 2120; the shape of the first opening 2100 matches the shape of the nozzle 1100, and the shapes of the second opening 2110 and the third opening 2120 match the first joint 1200a and the second joint 1200b.

[0037] like Figure 3As shown, in some embodiments, the transport pipeline 100 includes a first transport pipeline 1000 and a second transport pipeline 1010, the first transport pipeline 1000 is used to transport atomized liquid, and the second transport pipeline 1010 is used to transport atomized gas; the connecting pipeline 1210 includes a first connecting pipeline 1210a and a second connecting pipeline 1210b, the first transport pipeline 1000 is connected to the first joint 1200a through the first connecting pipeline 1210a, and the second transport pipeline 1010 is connected to the second joint 1200b through the second connecting pipeline 1210b. Optionally, the first connecting pipeline 1210a and the second connecting pipeline 1210b can be hoses, which are easier to replace, can adapt to the impact of water flow and air flow, and are not easy to be damaged.

[0038] like Figure 3 As shown, the nozzle fixing member 1120 is fixed to the nozzle connecting member 1110 in the opposite direction of the first opening 2100, and the nozzle fixing member 1120 is clamped with the fixing beam 210. The nozzle fixing member 1120 is used to fix the nozzle assembly 10 to the fixing beam 210, thereby achieving the stability of the nozzle assembly 10. In some embodiments, the nozzle fixing member 1120 includes a first nylon pad 1120a, a second nylon pad 1120b, and a cross-beam connecting plate 1120c. The first nylon pad 1120a is located at the connection between the nozzle connecting member 1110 and the nozzle 1100, the second nylon pad 1120b is located at the connection between the nozzle connecting member 1110 and the nozzle fixing member 1120, and the cross-beam connecting plate 1120c is a cylindrical fixing plate. The nozzle assembly 10 is clamped to the bottom of the fixed beam 210 through the cross-beam connecting plate 1120c, and the first nylon pad 1120a and the second nylon pad 1120b are used for buffering and shock absorption.

[0039] like Figure 6 and Figure 7 As shown, Figure 6 This is a schematic diagram of the local position relationship of another embodiment of the cover plate assembly without connecting pipelines. Figure 7 It is a schematic diagram of the structure of a cover assembly, a moving assembly and a slide assembly in another embodiment. The coating atomization device also includes a cover assembly 30, a moving assembly 40 and a slide assembly 50. The cover assembly 30 is located in the opening direction of the nozzle 1100 and is used to cover the nozzle assembly 10; the moving assembly 40 is arranged to be connected and cooperated with the cover assembly 30, and the moving assembly 40 is used for opening and closing the cover assembly 30.

[0040] When the paper product 60 moves above the coating atomization device, its speed is very fast. If only the nozzle assembly 10 is set to open or close, it will take a certain amount of time for the water-gas mixture in the nozzle assembly 10 to reach the atomization spray height of the atomized paper product 60 and the optimal atomization angle of each paper type, which will cause a part of the paper product 60 to be unable to be fully atomized during the movement. By setting the cover assembly 30, the motion assembly 40 and the carriage assembly 50, the water-gas mixture in the nozzle assembly 10 can first reach the atomization spray height of the atomized paper product 60, and the optimal atomization angle of each paper type is set. When atomization is required, the motion assembly 40 will quickly drive the cover assembly 30 to open and close, so that the paper product 60 is more fully atomized.

[0041] like Figure 8 As shown, Figure 8 yes Figure 7 A schematic diagram of the structure of the cover assembly in the embodiment, the cover assembly 30 includes a first baffle 300, a second baffle 310, a cover body 320 and a baffle connector 330, the first baffle 300 and the second baffle 310 are arranged on both sides of the cover body 320 parallel to the opening direction of the nozzle 1100, the baffle connector 330 is located at the top of the cover body 320, and the baffle connector 330 is used to connect and fix the first baffle 300 and the second baffle 310, and optionally, the baffle connector 330 and the first baffle 300 and the second baffle 310 are fixed with screws. The first baffle 300 and the second baffle 310 can block the splashing of the atomizer sprayed by the nozzle 1100, thereby avoiding the influence of the atomizer on other components.

[0042] like Fig. 9 As shown, Fig. 9 yes Figure 7 Schematic diagram of the structure of the cover assembly, the motion assembly and the slide assembly from another perspective of the embodiment, the slide assembly 50 includes a fixed rod 500 and a slide 510, the fixed rod 500 is connected to the support frame 200, and the slide 510 is provided with a hole that runs through the slide 510 and matches the shape of the fixed rod 500. Optionally, a copper sleeve is embedded in the middle of the slide 510 to make the movement of the slide 510 smoother. The fixed rod 500 passes through the slide 510 through the hole, so that the slide 510 can slide horizontally along the fixed rod 500; the slide 510 is connected to the cover body 320, and the slide 510 is used to support the cover assembly 30 and limit the horizontal movement of the cover assembly 30. Because the relationship between the fixed rod 500 and the slide 510 can be regarded as a slide rail assembly, the slide 510 will move horizontally along the direction limited by the fixed rod 500.

[0043] like Figure 7 and Fig. 9As shown, the motion assembly 40 includes a connecting rod 400, a pin 410 and a cylinder 420. The connecting rod 400 includes a first connecting rod 4000 and a second connecting rod 4100. The first connecting rod 4000 and the second connecting rod 4100 are connected via the pin 410. The cylinder 420 is fixed on a fixed body. Optionally, the fixed body may be, but is not limited to, a wall or a fixed steel plate. The first connecting rod 4000 is connected to the cylinder 420, the second connecting rod 4100 is connected to the cover body 320, the pin 410 is connected to the top of the support frame 200, and the top of the support frame 200 forms a fulcrum for the rotation of the connecting rod 400; when the cylinder 420 is extended, the first connecting rod 4000 will move in the direction of the extension of the cylinder 420, the first connecting rod 4000 drives the second connecting rod 4100 to make a circular motion around the pin 410 hole, and the second connecting rod 4100 drives the cover assembly 30 to make a linear motion along the fixed rod 500, thereby completing the opening and closing movement of the cover assembly 30. The cylinder 420 can move forward quickly, thereby driving the cover assembly 30 to open and close, so that the paper product 60 can be atomized more fully. In some embodiments, such as Figure 5 and Figure 7 As shown, Figure 5 The cover is blocking the closed state of the nozzle. Figure 7 It is the opening state of the nozzle when the cover is opened.

[0044] In some embodiments, Figure 8 As shown, the first baffle plate 300 is provided with an avoidance groove 3000, and the vertical projection area of ​​the avoidance groove 3000 is larger than the vertical projection area of ​​the nozzle assembly 10 extending out of the first opening 2100. The avoidance groove 3000 is used to prevent the cover plate assembly 30 from colliding and interfering with the nozzle assembly 10 when the cover plate assembly 30 moves in a straight line, while the second baffle plate 310 does not need to be provided with the avoidance groove 3000, because the first baffle plate 300 is located on one side of the moving direction of the cover plate body 320, and it will not collide and be affected by the nozzle assembly 10.

[0045] The coating atomization device provided in the embodiment of the present application can prolong the service life of the coating blade after use and improve the success rate of roll replacement by arranging the atomization device at the front end of the blade coating. At the same time, the design of the nozzle and the transportation pipeline facilitates the staff to find out a series of data such as the best water vapor mixing ratio, the atomization spray height, the best atomization time for each paper type, etc., thereby saving costs and reducing the burden on the staff.

[0046] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A coating atomization device, characterized in that: include: A nozzle assembly, the nozzle assembly comprising a transport pipeline, a nozzle component and a connection component, the transport pipeline is used to transport the atomizer required for atomization, the nozzle component is used to atomize the atomizer on the paper product, and the connection component is used to connect the nozzle component and the transport pipeline; A support assembly, the support assembly comprising a support frame and a fixed beam, the fixed beam is used to accommodate the nozzle component, and the support frame is used to connect and support the fixed beam; The nozzle component is arranged on the fixed beam, and the connecting assembly is located between the nozzle assembly and the transport pipeline.

2. The coating atomization device according to claim 1, characterized in that: The nozzle component includes a nozzle, a nozzle connecting component and a nozzle fixing component, the connecting assembly includes a joint and a connecting pipeline, the nozzle connecting component is used to connect the joint with the nozzle, the nozzle fixing component and the nozzle are located on opposite sides of the nozzle fixing component, and the connecting pipeline is used to connect the joint with the transport pipeline.

3. The coating atomization device according to claim 2, characterized in that: The joint includes a first joint and a second joint; the fixed beam includes a first opening, a second opening and a third opening, the first opening is arranged in the direction of the fixed beam toward the paper product, the nozzle passes through the first opening and the opening direction is toward the paper product; the nozzle connecting piece is located in the fixed beam, the second opening and the third opening are located on both sides of the first opening in a vertical direction, and the second opening and the third opening are arranged opposite to each other, the first joint is connected to the nozzle connecting piece through the second opening, and the second joint is connected to the nozzle connecting piece through the third opening.

4. The coating atomization device according to claim 3, characterized in that: The transport pipeline includes a first transport pipeline and a second transport pipeline, the first transport pipeline is used to transport atomized liquid, and the second transport pipeline is used to transport atomized gas; the connecting pipeline includes a first connecting pipeline and a second connecting pipeline, the first transport pipeline is connected to the first joint through the first connecting pipeline, and the second transport pipeline is connected to the second joint through the second connecting pipeline.

5. The coating atomization device according to claim 3, characterized in that: The nozzle fixing member is fixed to the nozzle connecting member, and is clamped with the fixing beam in the opposite direction of the first opening. The nozzle fixing member is used to fix the nozzle assembly to the fixing beam, thereby achieving the stability of the nozzle assembly.

6. The coating atomization device according to claim 2, characterized in that: The coating atomization device also includes a cover assembly, a moving assembly and a slide assembly. The cover assembly is located in the spraying direction of the nozzle and is used to cover the nozzle assembly; the moving assembly is arranged to be connected and cooperated with the cover assembly, and the moving assembly is used for opening and closing the cover assembly.

7. The coating atomization device according to claim 6, characterized in that: The cover plate assembly includes a first baffle, a second baffle, a cover plate body and a baffle connector. The first baffle and the second baffle are arranged on both sides of the cover plate body parallel to the spraying direction of the nozzle. The baffle connector is located at the top of the cover plate body. The baffle connector is used to connect and fix the first baffle and the second baffle.

8. The coating atomization device according to claim 7, characterized in that: The slide assembly includes a fixed rod and a slide, the fixed rod is connected to the support frame, the slide is provided with a hole that penetrates the slide and matches the shape of the fixed rod, the fixed rod passes through the slide through the hole, so that the slide can slide horizontally along the fixed rod; the slide is connected to the cover body, the slide is used to support the cover assembly and limit the horizontal movement of the cover assembly.

9. The coating atomization device according to claim 8, characterized in that: The motion assembly includes a connecting rod, a pin and a cylinder, the connecting rod includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are connected via the pin, the cylinder is fixed on a fixed body, the first connecting rod is connected to the cylinder, the second connecting rod is connected to the cover body, the pin is connected to the support frame, forming a fulcrum for the rotation of the connecting rod; when the cylinder is extended, the connecting rod performs a circular motion around the pin hole, driving the cover assembly to perform a linear motion along the fixed rod, thereby completing the opening and closing motion of the cover assembly.

10. The coating atomization device according to claim 9, characterized in that: The first baffle plate is provided with an avoidance groove, the vertical projection area of ​​the avoidance groove is larger than the vertical projection area of ​​the nozzle assembly extending out of the first opening, and the avoidance groove is used to prevent the cover plate assembly from colliding and interfering with the nozzle assembly when the cover plate assembly moves in a straight line.

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