A head-coating automatic tool grinder and coating machine

Abstract

This utility model belongs to the technical field of coating equipment, and discloses an automatic coating head alignment device and a coating machine. The automatic coating head alignment device includes a mounting structure, an angle adjustment mechanism, and a coating head. The mounting structure includes a fixed base and an adjusting base. One end of the adjusting base is rotatably connected to one end of the fixed base. The angle adjustment mechanism is located at the other end of the fixed base and includes a drive structure and a lifting component. One end of the lifting component is slidably connected to the other end of the adjusting base. By lowering or raising the lifting component, the included angle between the fixed base and the adjusting base can be adjusted to the target angle, so that the coating plane of the coating head is parallel to the surface to be coated on the product. This device, by rotatably connecting the fixed base and the adjusting base, not only requires only one angle adjustment mechanism to adjust the tilt angle of the coating plane of the coating head, but also makes the entire device simple in structure, small in size, and low in cost, making it particularly suitable for small coating machines.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to an automatic coating head calibration device and a coating machine. Background Technology

[0002] Coating equipment is an industrial device that uniformly, continuously, and stably coats liquid, paste, or gel materials with specific functions onto the surface of a substrate. The coating head is a key component of the coating equipment, and its performance directly determines the coating effect. To achieve uniform coating, the angle of the coating head needs to be adjusted during use to ensure that the parallelism between the coating head and the product meets the requirements, thereby ensuring a better coating effect.

[0003] Existing coating equipment typically uses two sets of lifting and adjusting mechanisms. The output ends of these two mechanisms are connected to both ends of the coating head, respectively. By controlling these mechanisms, the height of the corresponding ends of the coating head is adjusted to achieve parallelism between the coating head and the product. However, using two sets of lifting and adjusting mechanisms not only makes the equipment structure more complex, requiring a gantry structure, but also results in a larger overall size due to the arrangement of the two lifting and adjusting components on both sides of the coating head, making it unsuitable for smaller coating machines. Furthermore, the use of two sets of lifting and adjusting mechanisms also increases the overall cost of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic coating head alignment device and a coating machine. The automatic coating head alignment device has a simple structure, small size, low cost, and is suitable for small coating machines.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An automatic coating head calibration device includes: a mounting structure comprising a fixed base and an adjusting base, one end of the adjusting base being rotatably connected to one end of the fixed base; an angle adjustment mechanism disposed at the other end of the fixed base, the angle adjustment mechanism comprising a drive structure and a lifting component, the output end of the drive structure being connected to the lifting component and used to drive the lifting component to rise and fall, one end of the lifting component being slidably connected to the other end of the adjusting base; and a coating head disposed on the adjusting base and located on the side of the adjusting base away from the fixed base; wherein, by lowering or raising the lifting component, the included angle between the fixed base and the adjusting base can be adjusted to a target angle, so that the coating plane of the coating head is parallel to the surface to be coated of the product.

[0007] Preferably, the automatic coating head calibrator further includes a hinge seat, a slider, and a guide rail. The hinge seat is rotatably connected to one end of the lifting component, the guide rail is disposed on the adjusting seat, and the slider is disposed on the hinge seat and slidably connected to the guide rail.

[0008] Preferably, the lifting component is a lead screw, and the driving structure includes a nut block, which is rotatably mounted on the fixed seat. The nut block is threadedly connected to the lead screw to form a lead screw and nut pair, and the bottom end of the lead screw is connected to the other end of the adjusting seat.

[0009] Preferably, the lead screw is a ball screw; or, the lead screw is a trapezoidal lead screw.

[0010] Preferably, the drive structure further includes a drive motor and a synchronous belt structure, wherein the motor shaft of the drive motor is connected to the driving pulley of the synchronous belt structure, and the driven pulley of the synchronous belt structure is connected to the nut block.

[0011] Preferably, the drive structure further includes a bearing and a rotating shaft. The fixed base is provided with a mounting hole, the bearing is installed in the mounting hole, the rotating shaft passes through the bearing, the driven pulley is sleeved on the rotating shaft, and the rotating shaft is fixedly connected to the nut block.

[0012] Preferably, the automatic coating head calibration device further includes a tension elastic element, which is located between the fixed seat and the adjusting seat. One end of the tension elastic element is fixed to the fixed seat, and the other end is connected to the adjusting seat.

[0013] Preferably, the automatic coating head calibration device further includes a connecting frame, which includes a horizontal plate and two vertical frames. The two vertical frames are installed on the same side of the horizontal plate and are spaced apart on the horizontal plate. The coating head is installed on the horizontal plate, and both vertical frames are connected to the adjusting seat.

[0014] Preferably, the automatic coating head calibration device further includes two displacement sensors, the probes of which can determine a calibration plane parallel to the plane to be coated.

[0015] A coating machine includes a frame and the aforementioned automatic coating head alignment device, wherein the automatic coating head alignment device is mounted on the frame.

[0016] The beneficial effects of this utility model are:

[0017] This utility model provides an automatic coating head alignment device, comprising a mounting structure, an angle adjustment mechanism, and a coating head. The mounting structure includes a fixed base and an adjusting base. One end of the adjusting base is rotatably connected to one end of the fixed base. The angle adjustment mechanism is located at the other end of the fixed base and includes a drive structure and a lifting component. The output end of the drive structure is connected to the lifting component and is used to drive the lifting component to rise and fall. One end of the lifting component is slidably connected to the other end of the adjusting base. The coating head is mounted on the adjusting base and located on the side of the adjusting base away from the fixed base. This device can adjust the angle between the fixed base and the adjusting base to a target angle by lowering or raising the lifting component, so that the coating plane of the coating head is parallel to the surface to be coated on the product. By rotatably connecting the fixed base and the adjusting base, this device not only requires only one angle adjustment mechanism to adjust the tilt angle of the coating plane of the coating head, but also makes the entire device simple in structure, small in size, and low in cost, making it particularly suitable for small coating machines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic coating head calibration device described in an embodiment of this utility model;

[0019] Figure 2 This is a front view of the automatic coating head calibration device described in this embodiment of the utility model;

[0020] Figure 3 This is a side view of the automatic coating head calibration device described in this embodiment of the utility model;

[0021] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0022] Figure 5 This is a schematic diagram of the rotating shaft component described in an embodiment of the present utility model;

[0023] Figure 6 This is a cross-sectional view of the rotating shaft component described in an embodiment of this utility model.

[0024] In the picture:

[0025] 100. Mounting structure; 110. Fixing base; 111. First hinge part; 112. Mounting part; 120. Adjusting base; 121. Adjusting part; 122. Second hinge part; 130. Hinge shaft;

[0026] 200. Angle adjustment mechanism; 210. Lead screw; 220. Nut block; 230. Drive motor; 240. Synchronous belt structure; 241. Drive pulley; 242. Driven pulley; 243. Synchronous belt; 250. Bearing; 260. Rotating shaft; 261. Flanged part; 262. First shaft sleeve part; 263. Second shaft sleeve part; 264. First shaft hole; 265. Second shaft hole;

[0027] 300. Apply to head;

[0028] 400. Hinge seat;

[0029] 500, slider;

[0030] 600, guide rail;

[0031] 700. Tensile elastic element; 710. First crossbar; 720. Second crossbar;

[0032] 800. Connecting frame; 810. Horizontal plate; 820. Vertical frame;

[0033] 900. Displacement sensor. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] like Figures 1 to 4As shown, this utility model provides an automatic coating head alignment device, which can automatically adjust the coating angle of the coating head 300, so that the coating plane of the coating head 300 can be adjusted to be parallel to the coating plane of the product. Specifically, the automatic coating head alignment device includes a mounting structure 100, an angle adjustment mechanism 200, and a coating head 300. The mounting structure 100 includes a fixed base 110 and an adjusting base 120. One end of the adjusting base 120 is rotatably connected to one end of the fixed base 110, and the other end of the adjusting base 120 is spaced apart from the other end of the fixed base 110. The angle adjustment mechanism 200 is located at the other end of the fixed base 110. The angle adjustment mechanism 200 includes a drive structure and a lifting component. The output end of the drive structure is connected to the lifting component and is used to drive the lifting component to rise and fall. One end of the lifting component is slidably connected to the other end of the adjusting base 120. The coating head 300 is mounted on the adjusting base 120 and located on the side of the adjusting base 120 away from the fixed base 110.

[0039] Since one end of the adjusting seat 120 is rotatably connected to one end of the fixed seat 110, if the tilt angle of the coating head 300 needs to be adjusted, the angle between the fixed seat 110 and the adjusting seat 120 can be changed simply by controlling the raising or lowering of the lifting component of the angle adjustment mechanism 200. For example, if the fixed seat 110 is located below the adjusting seat 120, lowering the lifting component increases the angle between the fixed seat 110 and the adjusting seat 120, while raising the lifting component decreases the angle, ultimately causing the angle between the fixed seat 110 and the adjusting seat 120 to gradually change to a target angle that makes the coating plane of the coating head 300 parallel to the surface to be coated on the product. The automatic coating head alignment device provided by this utility model can adjust the angle between the fixed seat 110 and the adjusting seat 120 to the target angle by lowering or raising the lifting component, so that the coating plane of the coating head 300 is parallel to the surface to be coated on the product.

[0040] Compared to related technologies that require two sets of lifting and adjusting mechanisms, the automatic coating head alignment device provided by this utility model rotatably connects the fixed seat 110 and the adjusting seat 120, which not only allows the adjustment of the tilt angle of the coating plane of the coating head 300 to be achieved by setting only one set of angle adjusting mechanism 200, but also makes the entire device simple in structure, small in size, and low in cost, making it especially suitable for small coating machines.

[0041] The fixing base 110 is a block-shaped structure extending in a first direction. In some embodiments, the fixing base 110 includes a first hinge portion 111 and a mounting portion 112. The first hinge portion 111 is rotatably connected to the adjusting base 120, and the angle adjustment mechanism 200 is mounted on the mounting portion 112. In some embodiments, a mounting groove is provided vertically through the first hinge portion 111.

[0042] The adjusting seat 120 is located below the fixed seat 110. In some embodiments, the adjusting seat 120 includes a vertically connected adjusting portion 121 and a second hinge portion 122. The second hinge portion 122 extends into the mounting groove. A first hinge hole is provided on each side of the mounting groove on the first hinge portion 111, and a second hinge hole is provided on the second hinge portion 122. The hinge shaft 130 passes through the first hinge hole and the second hinge hole, thereby realizing the rotatable connection between the adjusting seat 120 and the fixed seat 110. Optionally, the adjusting portion 121 and the second hinge portion 122 are connected in an L-shape or a T-shape. Of course, in other embodiments, the positional relationship between the adjusting seat 120 and the fixed seat 110 can also be varied. For example, the adjusting seat 120 can be located above or to the side of the fixed seat 110.

[0043] Continue to refer to Figure 1 As shown, the lifting component is a lead screw 210, which extends vertically. In one specific embodiment, the lead screw 210 is a ball screw; in another specific embodiment, the lead screw 210 is a trapezoidal lead screw.

[0044] To drive the lead screw 210 to move vertically, the drive structure also includes a drive motor 230, a synchronous belt structure 240, and a nut block 220. The synchronous belt structure 240 includes a driving pulley 241, a driven pulley 242, and a synchronous belt 243. The synchronous belt 243 is sleeved on the driving pulley 241 and the driven pulley 242. The motor shaft of the drive motor 230 is connected to the driving pulley 241 of the synchronous belt structure 240. The driven pulley 242 of the synchronous belt structure 240 is connected to the nut block 220. The nut block 220 is rotatably mounted on the fixed seat 110. The nut block 220 is threadedly connected to the lead screw 210 to form a lead screw and nut pair. The bottom end of the lead screw 210 is connected to the other end of the adjusting seat 120.

[0045] Driven by the drive motor 230, the driving pulley 241 rotates around its own central axis and drives the driven pulley 242 to rotate through the synchronous belt 243. The driven pulley 242 can drive the nut block 220 to rotate, thereby causing the lead screw 210 to rise or fall, which in turn drives the other end of the adjusting seat 120 to move closer to or away from the other end of the fixed seat 110, thereby adjusting the angle formed between the adjusting seat 120 and the fixed seat 110.

[0046] Optionally, the drive motor 230 is a servo motor, with an assembly hole on the mounting part 112 of the fixed base 110. The body of the drive motor 230 is fixed on the bottom surface of the fixed base 110, and the synchronous belt structure 240 is located above the mounting part 112 of the fixed base 110. The motor shaft of the drive motor 230 passes through the assembly hole and is connected to the drive pulley 241 located above the fixed base 110.

[0047] Continue to refer to Figure 4 As shown, the drive structure also includes a bearing 250 and a rotating shaft 260. The fixed base 110 has mounting holes, the bearing 250 is installed in the mounting holes, the rotating shaft 260 passes through the bearing 250, and the driven pulley 242 is sleeved on the rotating shaft 260. The rotating shaft 260 is fixedly connected to the nut block 220. The bearing 250 and the rotating shaft 260 help improve the rotational accuracy and stability of the nut block 220. Of course, in other embodiments, the driven pulley 242 can also be directly fixed to the nut block 220.

[0048] Optionally, such as Figure 5 and Figure 6 As shown, the rotating shaft 260 includes a flanged portion 261, a first shaft sleeve portion 262, and a second shaft sleeve portion 263 connected in sequence. The outer diameter of the flanged portion 261 is larger than the outer diameter of the first shaft sleeve portion 262, and the outer diameter of the first shaft sleeve portion 262 is larger than the outer diameter of the second shaft sleeve portion 263, thereby forming a three-stage stepped structure. The bearing 250 is sleeved on the first shaft sleeve portion 262 and presses against the flanged portion 261, and the driven pulley 242 is sleeved on the second shaft sleeve portion 263. A stepped hole is axially extending through the interior of the rotating shaft 260. The stepped hole includes a first shaft hole 264 and a second shaft hole 265 that are interconnected. The first shaft hole 264 is located within the flange portion 261 and part of the first shaft sleeve portion 262, and the second shaft hole 265 is located within the remaining first shaft sleeve portion 262 and second shaft sleeve portion 263. The lead screw 210 passes through the stepped hole, and the nut block 220 is placed within the first shaft hole 264. The top of the nut block 220 abuts against the stepped surfaces of the first shaft hole 264 and the second shaft hole 265, and the annular flange of the nut block 220 abuts against the bottom surface of the flange portion 261. It should be noted that the nut block 220 is fixed to the rotating shaft 260 by means of interference fit or connection with a connector.

[0049] Of course, in other embodiments, other mechanisms can be used to drive the nut block 220, such as a combination of a drive motor 230 and a gear mechanism. Alternatively, other structures can be used as the lifting component, such as a push-pull rod designed as a smooth rod. To drive the push-pull rod to rise and fall, the drive structure can use a power component capable of outputting linear motion connected to the push-pull rod. Under the drive of the power component, the push-pull rod rises and falls vertically. Optionally, the power component can be a cylinder or a linear motor, or other component capable of outputting linear motion. Alternatively, a rack and pinion can be used as the lifting component. To drive the rack to rise and fall, the drive structure includes a motor and a gear, with the motor shaft connected to the gear, and the gear and rack meshing. Under the drive of the motor, the gear rotates, and the rack rises and falls vertically.

[0050] To achieve a sliding connection between the lifting component and the adjusting seat 120, continue referring to... Figure 1As shown, the automatic coating head calibrator also includes a hinge seat 400, a slider 500, and a guide rail 600. The hinge seat 400 is rotatably connected to one end of the lifting component, the guide rail 600 is mounted on the adjusting seat 120, and the slider 500 is mounted on the hinge seat 400 and slidably connected to the guide rail 600. Optionally, a groove is provided on the adjusting seat 120 along a first direction, and the guide rail 600 is disposed within the groove. This arrangement helps to improve the structural compactness of the connection between the lifting component and the adjusting seat 120.

[0051] Of course, in other embodiments, a guide block can be rotatably provided at the bottom end of the lifting component, and a guide channel can be provided on the adjusting seat 120. The guide channel extends along the first direction, and the guide block is slidably disposed in the guide channel. Optionally, the guide block is set as an inverted T-shaped structure, and the guide channel is also set as an inverted T-shaped groove. The guide block can enter the guide channel from one end of the guide channel and can be limited in the vertical direction to prevent the adjusting seat 120 from disengaging from the lifting component.

[0052] Continue to refer to Figure 1 As shown, the automatic coating head alignment device also includes a tension elastic element 700, which is located between the fixed base 110 and the adjusting base 120. One end of the tension elastic element 700 is fixed to the fixed base 110, and the other end is connected to the adjusting base 120. The tension elastic element 700 serves to eliminate the gap in the nut block 220 and prevent the adjusting base 120 from falling. In one specific embodiment, the tension elastic element 700 is a helical spring; in another specific embodiment, the tension elastic element 700 is a spring sheet with a zigzag shape.

[0053] To fix the helical spring between the fixed seat 110 and the adjusting seat 120, a first cross hole is provided on the fixed seat 110, and a second cross hole is provided on the adjusting seat 120. The top end of the helical spring extends into the vertical hole of the first cross hole, the first cross bar 710 passes through the first end ring of the helical spring and the horizontal hole of the first cross hole, the bottom end of the helical spring extends into the vertical hole of the second cross hole, and the second cross bar 720 passes through the second end ring of the helical spring and the horizontal hole of the second cross hole.

[0054] In some embodiments, the applicator 300 is directly fixed to the adjusting seat 120, and the fixing method includes, but is not limited to, connector connection, welding connection, magnetic connection, etc.

[0055] In some parallel embodiments, the automatic coating head calibration device further includes a connecting frame 800, through which the coating head 300 is fixed to the adjusting seat 120. Optionally, the connecting frame 800 includes a horizontal plate 810 and two uprights 820, which are mounted on the same side of the horizontal plate 810 and spaced apart on the horizontal plate 810. The coating head 300 is mounted on the horizontal plate 810, and both uprights 820 are connected to the adjusting seat 120.

[0056] To improve the adjustment accuracy of the coating head angle 300, the automatic coating head calibration device also includes two displacement sensors 900. The probes of the two displacement sensors 900 can determine a calibration plane parallel to the plane to be coated. Using this calibration plane as a reference, the coating plane of the coating head 300 can be adjusted to be parallel to the calibration plane. Optionally, high-precision displacement sensors are used for the displacement sensors 900. It should be noted that the relative positions of the two displacement sensors 900 remain fixed.

[0057] The working process of this automatic coating head calibration device, which uses two displacement sensors 900 to precisely adjust the coating head angle 300°, is as follows:

[0058] 1. First, zero the two displacement sensors 900: that is, when the probe of the displacement sensor 900 is flush with the product, the reading is 0. After zeroing, use the two displacement sensors 900 to detect the coating head 300. Since two points determine a straight line, when the readings of the two displacement sensors 900 are the same, it can be determined that the coating head 300 is parallel to the product.

[0059] 2. After the displacement sensor 900 is zeroed, the coating head 300 descends, and the probe of the displacement sensor 900 hits the coating head 300. At this time, the readings of the displacement sensor 900 are not the same.

[0060] 3. Based on the reading feedback from the displacement sensor 900, the drive motor 230 drives the nut block 220 to rotate through the synchronous belt structure 240, thereby driving the lead screw 210 to rise and fall, thus adjusting the height of the lead screw 210, causing the angle between the coating head 300 and the product to change. At the same time, the reading of the displacement sensor 900 changes synchronously.

[0061] 4. When the readings of the two displacement sensors 900 are the same, the drive motor 230 stops rotating, thus completing the automatic calibration of the coating head 300.

[0062] This utility model also discloses a coating machine, including a frame and the aforementioned automatic coating head alignment device, which is mounted on the frame. The use of this automatic coating head alignment device simplifies the structure, reduces the size, and lowers the cost of the coating machine. Other structural details of the coating machine are prior art and will not be described in detail here.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic coating head calibration device, characterized in that, include: The mounting structure (100) includes a fixed base (110) and an adjusting base (120), one end of the adjusting base (120) being rotatably connected to one end of the fixed base (110); An angle adjustment mechanism (200) is provided at the other end of the fixed base (110). The angle adjustment mechanism (200) includes a drive structure and a lifting component. The output end of the drive structure is connected to the lifting component and is used to drive the lifting component to rise and fall. One end of the lifting component is slidably connected to the other end of the adjustment base (120). The applicator (300) is disposed on the adjusting seat (120) and located on the side of the adjusting seat (120) away from the fixed seat (110); The angle between the fixed seat (110) and the adjusting seat (120) can be adjusted to the target angle by lowering or raising the lifting component, so that the coating plane of the coating head (300) is parallel to the coating plane of the product.

2. The automatic coating head calibration device according to claim 1, characterized in that, The automatic coating head calibration device also includes a hinge seat (400), a slider (500), and a guide rail (600). The hinge seat (400) is rotatably connected to one end of the lifting component. The guide rail (600) is located on the adjusting seat (120). The slider (500) is located on the hinge seat (400) and is slidably connected to the guide rail (600).

3. The automatic coating head calibration device according to claim 1, characterized in that, The lifting component is a lead screw (210), and the driving structure includes a nut block (220). The nut block (220) is rotatably mounted on the fixed seat (110). The nut block (220) is threadedly connected to the lead screw (210) to form a lead screw and nut pair. The bottom end of the lead screw (210) is connected to the other end of the adjusting seat (120).

4. The automatic coating head calibration device according to claim 3, characterized in that, The lead screw (210) is a ball screw; Alternatively, the lead screw (210) may be a trapezoidal lead screw.

5. The automatic coating head calibration device according to claim 3, characterized in that, The drive structure also includes a drive motor (230) and a synchronous belt structure (240). The motor shaft of the drive motor (230) is connected to the driving pulley (241) of the synchronous belt structure (240), and the driven pulley (242) of the synchronous belt structure (240) is connected to the nut block (220).

6. The automatic coating head calibration device according to claim 5, characterized in that, The drive structure also includes a bearing (250) and a rotating shaft (260). The fixed seat (110) is provided with a mounting hole. The bearing (250) is installed in the mounting hole. The rotating shaft (260) passes through the bearing (250). The driven pulley (242) is sleeved on the rotating shaft (260). The rotating shaft (260) is fixedly connected to the nut block (220).

7. The automatic coating head calibration device according to claim 1, characterized in that, The automatic coating head calibration device also includes a tension elastic element (700), which is located between the fixed seat (110) and the adjusting seat (120). One end of the tension elastic element (700) is fixed to the fixed seat (110), and the other end is connected to the adjusting seat (120).

8. The automatic coating head calibration device according to claim 1, characterized in that, The automatic coating head calibration device also includes a connecting frame (800), which includes a horizontal plate (810) and two uprights (820). The two uprights (820) are installed on the same side of the horizontal plate (810) and are spaced apart on the horizontal plate (810). The coating head (300) is installed on the horizontal plate (810), and both uprights (820) are connected to the adjusting seat (120).

9. The automatic coating head calibration device according to claim 1, characterized in that, The automatic coating head calibration device also includes two displacement sensors (900), the probes of which can determine a calibration plane parallel to the plane to be coated.

10. A coating machine, characterized in that, It includes a frame and an automatic coating head alignment device as described in any one of claims 1-9, wherein the automatic coating head alignment device is mounted on the frame.

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