Online coating machine

By combining the rotating coating assembly and the multi-axis slide rail drive system, the problem of uneven coating of complex-shaped workpieces by traditional coating equipment is solved, achieving efficient and uniform coating effect and adapting to diverse workpiece needs.

CN223847338UActive Publication Date: 2026-01-30VECTRON TECH ELECTRONICS EQUIP
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Patent Information

Application Number
CN202520134902.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-30
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Traditional coating equipment struggles to uniformly coat complex and varied products, especially failing to effectively cover raised and recessed structures.

Method used

By employing a rotating coating component and a moving component, combined with a multi-axis slide rail drive system, precise control and angle adjustment in three-dimensional space are achieved. Real-time monitoring is performed using a vision sensing component to ensure coating uniformity.

Benefits of technology

It achieves uniform coating on the surface of complex workpieces, improves coating quality and production efficiency, meets diverse coating needs, adapts to workpieces of different sizes and shapes, and reduces material waste and mechanical wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an online coating machine. The online coating machine comprises a rack, a movable assembly mounted on the rack, and a rotary coating assembly mounted on the movable assembly and used for coating a workpiece, the rotating coating assembly comprises a rotating piece installed on the movable assembly and a rotating coating piece installed on the rotating piece. The rotating piece comprises a rotating fixing plate mounted on the movable assembly, a rotating part rotationally mounted on the rotating fixing plate, and a rotating driving piece mounted on the rotating fixing plate and used for driving the rotating part to rotate; the rotating coating piece is mounted on the rotating part; for the uneven workpiece surface, the rotating part of the rotating coating assembly can drive the rotating coating piece to adjust the coating angle, the situation that in a traditional coating mode, materials are likely to be stacked at the concave position or cannot cover the convex position is avoided, and therefore the coating uniformity of the whole workpiece surface is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to coating equipment technical field, in particular to an online coating machine. BACKGROUND

[0002] The market demand for products is increasingly diversified and personalized, and the shape, size and structure of products are more and more complex. Traditional coating equipment can only coat workpieces with simple shapes and specific parts, and it is difficult to meet the complex and changeable product coating requirements. Traditional coating equipment usually uses fixed spray heads or coating tools, and their movement mode is relatively single. For example, some simple flat plate type coating equipment, the spray head can only move linearly in one plane, and it is difficult to uniformly coat workpieces with curved surfaces and concave-convex shapes. For example, the engine cylinder in automobile parts has many complex convex and concave structures on its surface, and traditional equipment cannot effectively cover these parts. SUMMARY

[0003] Therefore, the utility model aims to provide an online coating machine with uniform coating.

[0004] The utility model adopts the following technical scheme:

[0005] An online coating machine comprises a rack, a movable assembly installed on the rack, a rotating coating assembly installed on the movable assembly for coating workpieces, the rotating coating assembly comprises a rotating part installed on the movable assembly and a rotating coating part installed on the rotating part, the rotating part comprises a rotating fixed plate installed on the movable assembly, a rotating part rotatably installed on the rotating fixed plate, and a rotating driving part installed on the rotating fixed plate for driving the rotating part to rotate, and the rotating coating part is installed on the rotating part.

[0006] Further, the rotating part comprises a rotating shaft rotatably installed on the rotating fixed plate and a driving shaft connected to the rotating shaft on one side of the rotating fixed plate, the rotating coating part is installed on the rotating shaft, and the driving shaft is drivingly connected to the rotating driving part.

[0007] Further, the movable assembly comprises a Z-axis sliding rail mounted on the frame, a Y-axis fixing frame slidably arranged on the Z-axis sliding rail, a Z-axis driving member mounted on the frame and used for driving the Y-axis fixing frame to move, a Y-axis sliding rail mounted on the Y-axis fixing frame, an X-axis fixing frame slidably arranged on the Y-axis sliding rail, a Y-axis driving member mounted on the Y-axis fixing frame and used for driving the X-axis fixing frame to move, an X-axis sliding rail mounted on the X-axis fixing frame, a positioning plate slidably arranged on the X-axis sliding rail, and an X-axis driving member mounted on the X-axis fixing frame and used for driving the positioning plate to move; the rotating fixing plate is mounted on the positioning plate.

[0008] Further, the movable assembly further comprises a rotating driving cylinder mounted on the positioning plate and used for driving the rotating fixing plate to move; the rotating driving cylinder further comprises a rotating driving rod, and the rotating fixing plate is mounted on the rotating driving rod.

[0009] Further, the online coating machine further comprises a fixed coating member mounted on the positioning plate; the fixed coating member is mounted on one side of the rotating coating member.

[0010] Further, the online coating machine further comprises a visual sensing assembly mounted on the positioning plate; the visual sensing assembly is mounted between the rotating coating member and the fixed coating member.

[0011] Further, the online coating machine further comprises a conveying assembly mounted on the frame and used for conveying the workpiece; the conveying direction of the conveying assembly is the same as the track direction of the Y-axis sliding rail.

[0012] Further, the online coating machine further comprises a waste gas recovery assembly mounted on the frame and used for recovering coating waste gas; the waste gas recovery assembly comprises a plurality of recovery pipelines mounted on the frame and arranged opposite to the coating assembly.

[0013] Further, the online coating machine further comprises a ventilation window mounted on the frame and used for ventilation; the ventilation window is arranged on the top of the frame and opposite to the recovery pipeline.

[0014] Further, the online coating machine further comprises a control assembly mounted on the frame.

[0015] The online coating machine has the following advantages:

[0016] The online coating machine relates to the uneven workpiece surface, the rotating part of the rotating coating assembly can drive the rotating coating piece to adjust the coating angle, avoids the material accumulation in the recess or the situation that the protruding place cannot be covered in the traditional coating mode, thereby ensuring the coating uniformity of the whole workpiece surface; through the cooperation of the movable assembly, the angle adjustment of the rotating coating piece can be adjusted, and the coating material can be uniformly distributed at different angles and positions. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the online coating machine of an embodiment of the utility model;

[0018] Figure 2 It is Figure 1 It is a three-dimensional schematic view of the online coating machine after removing the shell;

[0019] Figure 3 It is Figure 2 It is a three-dimensional schematic view of the online coating machine after removing the rack;

[0020] Figure 4 It is Figure 3 It is an explosion view of the online coating machine;

[0021] Figure 5 It is Figure 4 It is an explosion view of the rotating coating assembly and the fixed coating assembly of the online coating machine;

[0022] Figure 6 It is Figure 5 It is an explosion view of the rotating coating piece of the online coating machine. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] It should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect" and "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, or it can be connected between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Please refer to Figures 1 to 6 The utility model discloses an online coating machine, including frame 10, the movable assembly 20 of installing on frame 10, install on movable assembly 20 and be used for coating workpiece's rotary coating assembly 30, rotary coating assembly 30 includes the rotary piece 31 of installing on movable assembly 20, and install on rotary piece 31's rotary coating piece 32, rotary piece 31 includes the rotary fixed plate 310 of installing on movable assembly 20, the rotary part 311 of rotary installation on rotary fixed plate 310, and install on rotary fixed plate 310 and be used for driving rotary part 311 rotation's rotary drive piece 312, rotary coating piece 32 installs on rotary part 311.

[0027] The working principle of the online coating machine of the utility model is as follows: first, the workpiece is placed in the appropriate position, and the rotary coating assembly 30 is moved to the position where the workpiece needs to be coated by the movable assembly 20; when the surface of the uneven workpiece needs to be coated, the rotary part 311 installed on the movable part 311 drives the rotary coating piece 32 to adjust the angle of coating, and at the same time, the movable assembly 20 cooperates to make the coating material uniformly coated on the surface of the workpiece.

[0028] Compared with the prior art, the online coating machine can adjust the coating angle of the rotating coating part 32 through the rotating part 311 of the rotating coating assembly 30, so as to avoid the material accumulation in the recessed part or the failure to cover the protruding part in the traditional coating mode, thereby ensuring the uniformity of the coating of the entire workpiece surface; through the cooperation of the movable assembly 20, the rotating coating part 32 can be adjusted at a suitable speed and path, so that the coating material can be uniformly distributed at different angles and positions; for example, when a workpiece with an arc is coated, the movable assembly 20 can slowly move along the arc of the shell, and the rotating coating part 32 can continuously adjust the angle, so as to ensure that the coating material is uniformly covered on the entire arc surface, and the coating quality is improved; through the angle adjustment of the rotating coating part 32 by the rotating part 311 and the cooperative work of the movable assembly 20, the coating thickness can be kept in a stable range, regardless of whether the workpiece surface is flat or uneven, the thickness of the insulating coating is uniform, and the performance and reliability of the product are effectively improved.

[0029] Please refer to Figure 5 and Figure 6 The rotating part 311 comprises a rotating shaft 311A rotatably installed on the rotating fixed plate 310 and a driving shaft 311B connected with the rotating shaft 311A on one side of the rotating fixed plate 310. The rotating coating part 32 is installed on the rotating shaft 311A, and the driving shaft 311B is drivingly connected with the rotating drive part 312. The driving shaft 311B is connected with the rotating drive part 312, and the driving shaft 311B and the rotating shaft 311A are connected. The power generated by the rotating drive part 312 can be effectively transmitted to the rotating shaft 311A to drive the rotating coating part 32 to rotate. For example, in the long-time and high-intensity coating process, the stable power transmission structure can reduce the power loss and the wear of mechanical parts, and ensure that the rotating coating part 32 works continuously and stably. The separate arrangement of the rotating shaft 311A and the driving shaft 311B can disperse the stress. When the rotating coating part 32 encounters resistance (such as uneven resistance generated by contact with the uneven workpiece surface) during the coating process, the force can be transmitted to the rotating fixed plate 310 through the rotating shaft 311A and the driving shaft 311B respectively, so as to avoid that a single shaft bears too much force, thereby prolonging the service life of the entire rotating part 311 and related mechanical parts. The structure that the driving shaft 311B is separated from the rotating shaft 311A makes each component have a certain independence, and presents a modular feature.

[0030] Please refer to Figure 3 and Figure 4The movable assembly 20 includes a Z-axis slide rail 21 mounted on the frame 10, a Y-axis fixed frame 22 sliding on the Z-axis slide rail 21, a Z-axis drive 23 mounted on the frame 10 for driving the Y-axis fixed frame 22 to move, a Y-axis slide rail 24 mounted on the Y-axis fixed frame 22, an X-axis fixed frame 25 sliding on the Y-axis slide rail 24, a Y-axis drive 26 mounted on the Y-axis fixed frame 22 for driving the X-axis fixed frame 25 to move, an X-axis slide rail 27 mounted on the X-axis fixed frame 25, a positioning plate 28 sliding on the X-axis slide rail 27, and an X-axis drive 29 mounted on the X-axis fixed frame 25 for driving the positioning plate 28 to move; the rotating fixed plate 310 is mounted on the positioning plate 28. The movable assembly 20 composed of the X, Y, and Z-axis slide rails 21 and the corresponding drives can realize precise control of the rotating coating assembly 30 in three-dimensional space; whether it is a small and precise workpiece or a large and complex-shaped product, the rotating coating assembly 30 can be precisely positioned to any position on the surface of the workpiece through the collaborative work of the X-axis, Y-axis, and Z-axis drives 23; for example, when coating an electronic product shell with a complex internal structure and external shape, the movable assembly 20 can accurately send the rotating coating assembly 32 to the small corners inside the shell and the curved surfaces, edges, etc. outside for coating; the slide rails and drives of each axis help improve positioning accuracy. The slide rails provide stable guidance for the moving parts, ensuring the accuracy of the movement direction; the drives can drive the corresponding fixed frame or positioning plate 28 to move; for example, when coating the pins of a tiny electronic chip, the Z-axis drive 23 can accurately control the tiny vertical displacement of the Y-axis fixed frame 22, and the Y-axis drive 26 and the X-axis drive 29 can precisely position the rotating coating assembly 30 to the specific position of the pin, ensuring that the coating accuracy reaches the micron level; the multi-axis structure of the movable assembly 20 makes it easy to adapt to workpieces of different sizes; for large workpieces such as large mechanical parts or building materials, the movement range of the X, Y, and Z axes is large enough to move the rotating coating assembly 30 to various parts of the workpiece for coating; for small workpieces, the movable assembly 20 can reduce the coating range to a small area of the workpiece through precise control; for example, when coating large wind turbine blades and small watch parts, the movable assembly 20 can adjust the movement range according to the size of the workpiece to achieve efficient coating.

[0031] The movable assembly 20 further comprises a rotating drive cylinder 210 mounted on the positioning plate 28 for driving the movement of the rotating fixed plate 310; the rotating drive cylinder 210 further comprises a rotating drive rod, and the rotating fixed plate 310 is mounted on the rotating drive rod. By mounting the rotating fixed plate 310 on the rotating drive rod of the rotating drive cylinder 210, the angle adjustment of the rotating coating assembly 30 can be realized; for example, when coating some workpieces with inclined surfaces or inclined surface combinations, the rotating drive cylinder 210 can match the angle of the rotating coating assembly 32 with the surface angle of the workpiece, so as to ensure that the coating material can be attached to the workpiece at the best angle, thereby improving the coating quality; the rotating drive cylinder 210 can provide a relatively precise angle adjustment function; the angle of the rotating coating assembly 30 can be flexibly changed within a certain range according to the shape of different workpieces and coating requirements; compared with devices without the angle adjustment function, this design can better cope with various complex coating scenarios, such as coating the outer surfaces of pipes with different slopes or building boards with certain inclination angles, and can realize more precise coating.

[0032] Please refer to Figure 5 and Figure 6The online coating machine further comprises a fixed coating member 40 installed on the positioning plate 28; the fixed coating member 40 is installed on one side of the rotating coating member 32. The rotating coating member 32 and the fixed coating member 40 are arranged at the same time, which can provide two different coating methods; the rotating coating member 32 can make the coating material uniformly distributed and coated on the surface of the workpiece through the rotating motion, which is suitable for large area and uniform thickness coating area; and the fixed coating member 40 can be arranged on one side of the rotating coating member 32 to supplement the coating of some local areas with special shapes or fine coating requirements; for example, when coating a workpiece with complex patterns, the rotating coating member 32 can first perform large-area coating of the base color, and the fixed coating member 40 can perform accurate contour coating on the pattern part, thereby realizing the diversification of the coating method; for different coating materials and surface requirements of the workpiece, the design of the double coating members provides more choices; if the flowability of the coating material is good, the rotating coating member 32 can quickly spread the material, and for some places with high viscosity or local thickening of the coating, the fixed coating member 40 can directly apply the material to the surface of the workpiece; for example, when coating a functional coating containing particles, the fixed coating member 40 can accurately place the particle material at the required position of the workpiece, and the rotating coating member 32 is used to uniformly distribute the liquid component in the coating material, thereby better meeting the special coating requirements; the fixed coating member 40 is installed on one side of the rotating coating member 32, which can compensate for the areas that may be missed or unevenly coated by the rotating coating member 32; for example, when coating a workpiece with edges or corners, the rotating coating member 32 may cause uneven distribution of the coating material due to centrifugal force and other factors at the edge part, and the fixed coating member 40 can accurately coat at these edges and corners to ensure the coating accuracy and integrity of the entire workpiece surface.

[0033] The online coating machine further comprises a visual sensing assembly 50 installed on the positioning plate 28; the visual sensing assembly 50 is installed between the rotating coating member 32 and the fixed coating member 40. The visual sensing assembly 50 is installed between the rotating coating member 32 and the fixed coating member 40, which can monitor the coating process in real time; it can capture the distribution of the coating material on the surface of the workpiece, including the thickness, uniformity, presence of bubbles or impurities, and other information; for example, when coating high-precision electronic components, the visual sensing assembly 50 can timely find out whether the coating material uniformly covers the surface of the components, thereby avoiding electronic performance problems caused by uneven coating; before coating, the visual sensing assembly 50 can accurately identify and position the position of the workpiece; through image recognition technology, the positions of the edges, shapes and key features of the workpiece are determined, for example, when coating mechanical parts with complex shapes, the visual sensing assembly 50 can help the movable assembly 20 to accurately align the rotating coating member 32 and the fixed coating member 40 with the parts to be coated, thereby improving the accuracy of the coating.

[0034] Please refer toFigures 2 to 4 The online coating machine also includes a conveyor assembly 60 mounted on the frame 10 for conveying workpieces. The conveying direction of the conveyor assembly 60 is the same as the track direction of the Y-axis slide rail 24. The conveyor assembly 60, mounted on the frame 10 and with the conveying direction aligned with the Y-axis slide rail 24, allows workpieces to sequentially pass through the coating area along a set direction. During mass production, workpieces can be automatically conveyed from one position to the coating position and then conveyed again after coating, achieving an automated continuous coating process. For example, in an automotive parts coating production line, a large number of parts can be continuously fed to the bottom of the coating machine via the conveyor assembly 60, positioned by the movable assembly 20, coated, and then conveyed away, greatly improving production efficiency. This conveying method facilitates better integration between the online coating machine and upstream and downstream production processes. It can seamlessly connect with the production equipment of the previous process (such as processing equipment, cleaning equipment, etc.) and the equipment of the next process (such as drying equipment, packaging equipment, etc.) via conveyor belts. This makes the entire production process more compact and efficient, reducing manual handling and waiting time, and optimizing the overall production process.

[0035] Please see Figure 1 and Figure 2 The online coating machine also includes a waste gas recovery assembly 70 installed on the frame 10 for absorbing coating waste gas; the waste gas recovery assembly 70 consists of multiple recovery pipes installed on the frame 10 and positioned opposite the coating assembly. During the coating process, coating materials (such as paint, adhesives, etc.) will volatilize and generate waste gas, which may contain harmful chemicals such as volatile organic compounds; the multiple recovery pipes in the waste gas recovery assembly 70, positioned opposite the coating assembly, can collect the waste gas near its source; for example, when the coating operation is in progress, the recovery pipes can promptly capture the newly volatilized waste gas, preventing it from spreading into the surrounding environment, thereby effectively reducing pollution to the atmospheric environment; compliant with environmental regulations: With increasingly stringent environmental regulations, enterprises need to control waste gas emissions during the production process; installing the waste gas recovery assembly 70 can help enterprises meet the requirements of relevant regulations; the recovery pipes can guide the waste gas to subsequent treatment equipment (such as activated carbon adsorption devices, catalytic combustion devices, etc.) for purification treatment, ensuring that the waste gas emitted into the atmosphere meets environmental standards.

[0036] The online coating machine further comprises a ventilation window 80 installed on the rack 10 for ventilation; the ventilation window 80 is arranged at the top of the rack 10 opposite to the recovery pipeline. The ventilation window 80 is arranged at the top of the rack 10 opposite to the recovery pipeline, so that a good air circulation path can be formed; during the waste gas recovery process, the recovery pipeline collects the waste gas generated during the coating, and the ventilation window 80 can promote the fresh air to enter the space where the equipment is located; for example, when the recovery pipeline sucks the waste gas, a local negative pressure is formed in the equipment, and the ventilation window 80 makes the external fresh air enter under the action of the pressure difference, so that the air exchange is ensured, and the waste gas exhaust efficiency is effectively improved; the ventilation window 80 is located at the top of the rack 10, which is beneficial to the natural exhaust of the waste gas upward. Because the hot waste gas usually rises naturally, the ventilation window 80 provides an exhaust channel for the waste gas; compared with only the recovery pipeline, the cooperation of the ventilation window 80 and the recovery pipeline can more thoroughly remove the waste gas generated during the coating and reduce the waste gas residue in the equipment and the surrounding environment.

[0037] The online coating machine further comprises a control assembly 90 installed on the rack 10. The control assembly 90 can accurately control various working parts of the coating machine; for example, it can adjust the movement speed and displacement of the X-axis, Y-axis and Z-axis driving members 23 in the movable assembly 20, so as to ensure that the rotating coating assembly 30 is accurately positioned at each position of the workpiece that needs to be coated; at the same time, the rotating speed of the rotating member 31 can also be accurately controlled, so that the rotating coating member 32 uniformly distributes the coating material on the surface of the workpiece at a suitable rotating speed; such fine parameter adjustment can adapt to workpieces of different shapes, sizes and coating requirements, and greatly improves the coating quality; through the control assembly 90, various coating processes can be realized; for example, for coating materials with different viscosities, the control assembly 90 can adjust the coating pressure and coating speed; for some workpieces that need to be coated in multiple layers, the control assembly 90 can set different coating parameters and coating sequences, such as first coating primer and then coating topcoat, and accurately control the thickness and uniformity of each layer, so as to meet the diversified coating process requirements.

[0038] The above only expresses the preferred technical solutions of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these changes and modifications.

Claims

1. An in-line coater characterized by, The online coating machine comprises a rack, a movable assembly installed on the rack, a rotary coating assembly installed on the movable assembly for coating a workpiece; the rotary coating assembly comprises a rotary part installed on the movable assembly, and a rotary coating part installed on the rotary part; the rotary part comprises a rotary fixed plate installed on the movable assembly, a rotary part installed rotatably on the rotary fixed plate, and a rotary driving part installed on the rotary fixed plate for driving the rotary part to rotate; the rotary coating part is installed on the rotary part.

2. The in-line coater of claim 1, wherein, The rotary part comprises a rotary shaft installed rotatably on the rotary fixed plate, and a driving shaft installed on one side of the rotary fixed plate and connected with the rotary shaft; the rotary coating part is installed on the rotary shaft, and the driving shaft is drivingly connected with the rotary driving part.

3. The in-line coater of claim 2, wherein, The movable assembly comprises a Z-axis sliding rail installed on the rack, a Y-axis fixed frame slidably installed on the Z-axis sliding rail, a Z-axis driving part installed on the rack for driving the Y-axis fixed frame to move, a Y-axis sliding rail installed on the Y-axis fixed frame, an X-axis fixed frame slidably installed on the Y-axis sliding rail, a Y-axis driving part installed on the Y-axis fixed frame for driving the X-axis fixed frame to move, an X-axis sliding rail installed on the X-axis fixed frame, a positioning plate slidably installed on the X-axis sliding rail, and an X-axis driving part installed on the X-axis fixed frame for driving the positioning plate to move; the rotary fixed plate is installed on the positioning plate.

4. The in-line coater of claim 3, wherein, The movable assembly further comprises a rotary driving cylinder installed on the positioning plate for driving the rotary fixed plate to move; the rotary driving cylinder further comprises a rotary driving rod, and the rotary fixed plate is installed on the rotary driving rod.

5. The in-line coater of claim 4, wherein, The online coating machine further comprises a fixed coating part installed on the positioning plate; the fixed coating part is installed on one side of the rotary coating part.

6. The in-line coater of claim 5, wherein, The online coating machine further comprises a visual sensing assembly installed on the positioning plate; the visual sensing assembly is installed between the rotary coating part and the fixed coating part.

7. The in-line coater of claim 6, wherein, The online coating machine further comprises a conveying assembly installed on the rack for conveying the workpiece; the conveying direction of the conveying assembly is the same as the track direction of the Y-axis sliding rail.

8. The in-line coater of claim 1, wherein, The online coating machine further comprises an exhaust gas recovery assembly installed on the rack for recovering coating exhaust gas; the exhaust gas recovery assembly comprises a plurality of recovery pipelines installed on the rack and arranged opposite to the coating assembly.

9. The in-line coater of claim 8, wherein, The online coating machine further comprises a ventilation window installed on the rack for ventilation; the ventilation window is arranged on the top of the rack opposite to the recovery pipeline.

10. The in-line coater of claim 1, wherein, The online coating machine further comprises a control assembly installed on the rack.