Automatic deviation-correcting device and method for gypsum board lamination

Abstract

The present invention discloses an automatic deviation correction device and method for gypsum board coating, which shoots a gypsum board image and a coated fabric image in real time; takes the direction of the central axis of the conveying unit in the gypsum board image as the Y axis and the direction of the two side edges of the gypsum board as the X axis, and determines the horizontal coordinate values ​​corresponding to the detection points on the two side edges of the gypsum board; takes the conveying direction of the coated fabric in the coated fabric image as the Y axis and the direction of the central axis of the tensioning reel group as the X axis, and determines the horizontal coordinate values ​​corresponding to the detection points on the two side edges of the coated fabric; calculates the horizontal coordinate difference between the horizontal coordinate values ​​corresponding to the two side edges of the gypsum board and the horizontal coordinate values ​​corresponding to the two side edges of the coated fabric, and uses the position of the coated fabric to automatically correct the deviation so that the horizontal coordinate difference between the gypsum board and the two side edges of the coated fabric is the same; the present invention corrects the inclination of the coated fabric and the overall position, so that the fabric can be evenly aligned with the inclined gypsum board.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum board laminating, and in particular to an automatic deviation-correcting device and method for gypsum board laminating, which are used to adjust the position and inclination of the laminating fabric so that the gypsum board and the laminating fabric are evenly aligned. Background Art

[0002] Gypsum board laminating specifically refers to adding a layer of decorative surface material to the outer surface of the gypsum board body or facing paper. After the gypsum board has gone through the production process such as slitting and drying, the formed gypsum board is transferred to the laminating system to laminate one surface (usually the back) and four sides of the gypsum board.

[0003] In order to completely laminate the four sides of the gypsum board, it is necessary to ensure that the laminated fabric is evenly aligned with the gypsum board so that the length of the four fabric sides extending beyond the gypsum board is exactly the same as the thickness of the gypsum board. Therefore, it is necessary to automatically correct the laminating fabric. When the position of the laminated fabric and the gypsum board deviates, the laminated fabric or the gypsum board is adjusted in time to improve the stability of the laminating work.

[0004] Most of the existing automatic correction methods for gypsum board coating are: setting a correction device at the unwinding position of the coating fabric, changing the linear position of the coating fabric reel on the unwinding rod, so as to only adjust the lateral position of the coating fabric on the gypsum board surface, so that the coating fabric is evenly laid on the vertically distributed gypsum board surface. However, when the gypsum board is in an inclined state, the inclination of the coating fabric cannot be adjusted, so that the coating fabric cannot be evenly laid on the inclined gypsum board surface. Summary of the Invention

[0005] To this end, the present invention provides a gypsum board laminating automatic deviation correction device and method to solve the technical problem that in the prior art, only the side position of the laminating fabric on the gypsum board surface can be adjusted so that the laminating fabric is evenly laid on the vertically distributed gypsum board surface, but when the gypsum board is in an inclined state, the inclination of the laminating fabric cannot be adjusted, and thus the laminating fabric cannot be evenly laid on the inclined gypsum board surface.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A method for automatically correcting the deviation of a gypsum board coating comprises the following steps:

[0008] Step 100: Real-time capture of an image of the gypsum board being transmitted on the gypsum board conveying unit and an image of the coated fabric being transmitted on the tensioning reel assembly;

[0009] Step 200: Taking the direction of the central axis of the conveying unit in the gypsum board image as the Y axis and the directions of the two sides of the gypsum board as the X axis, determine the horizontal coordinate values ​​corresponding to the detection points on the two sides of the gypsum board;

[0010] Step 300: Taking the conveying direction of the coated fabric in the coated fabric image as the Y-axis and the direction of the central axis of the tensioning reel group as the X-axis, determine the horizontal coordinate values ​​corresponding to the detection points on both sides of the coated fabric;

[0011] Step 400: Calculate the horizontal coordinate difference between the horizontal coordinate values ​​corresponding to the two sides of the gypsum board and the horizontal coordinate values ​​corresponding to the two sides of the coated fabric, and use automatic correction of the position of the coated fabric to make the horizontal coordinate difference corresponding to the two sides of the gypsum board and the coated fabric the same.

[0012] As a preferred solution of the present invention, in step 100, the shooting module on the gypsum board conveying unit is arranged directly above the gypsum board conveying unit, the shooting module on the tensioning reel group is located downstream of the tensioning output roller and close to the pressing position of the coated fabric, and the tensioning output roller of the tensioning reel group is provided with an automatic correction mechanism, which is used to adjust the position of the coated fabric passing through the output roller.

[0013] As a preferred solution of the present invention, the central axis of the gypsum board conveying unit and the central axis of the tensioning output roller of the tensioning reel group are in the same vertical plane.

[0014] As a preferred embodiment of the present invention, in step 400, determining whether the gypsum board and the coated fabric are evenly aligned is specifically implemented as follows:

[0015] Select multiple groups of detection points on both sides of the gypsum board in the gypsum board image, and select multiple groups of detection points on both sides of the coated fabric in the coated fabric image;

[0016] Comparing the horizontal coordinates of multiple groups of detection points on the gypsum board respectively, and judging whether the gypsum board is offset according to the difference range of the multiple horizontal coordinates of the gypsum board;

[0017] The horizontal coordinates of multiple groups of detection points on the coated fabric are compared respectively, and whether the coated fabric is offset is determined according to the difference range of the multiple horizontal coordinates of the coated fabric.

[0018] As a preferred embodiment of the present invention, when the difference range of multiple horizontal coordinates of the gypsum board exceeds a set threshold, the inclination angle of the gypsum board is calculated based on the horizontal coordinate values ​​of multiple groups of detection points, and the automatic correction mechanism is used to adjust the inclination of the coated fabric to be the same as the inclination angle of the gypsum board, so that the coated fabric is adaptively adjusted to the same inclination as the gypsum board;

[0019] Feedback the tilt angle of the gypsum board to adjust the positions of the two side edges of the gypsum board so that the two sides of the gypsum board are at the same distance from the two side edges of the conveying unit;

[0020] When the difference range of multiple horizontal coordinates of the coated fabric exceeds a set threshold, the inclination angle of the coated fabric is calculated according to the horizontal coordinate values ​​of multiple groups of detection points, and the automatic correction mechanism is used to adjust the inclination of the coated fabric until the inclination angle is the same as that of the gypsum board.

[0021] As a preferred embodiment of the present invention, when the multiple horizontal coordinate difference ranges of the coated fabric and the multiple horizontal coordinate difference ranges of the coated fabric do not exceed the set threshold, the horizontal coordinate difference corresponding to the same side of the gypsum board and the coated fabric is calculated;

[0022] When the calculated horizontal coordinate differences on both sides are the same, there is no need to automatically correct the position of the coated fabric, and the coated fabric and the gypsum board are bonded together using the pressing roller;

[0023] When the calculated horizontal coordinate differences on both sides are different, the position of the coated fabric is automatically corrected so that the coated fabric is evenly laid on the gypsum board surface.

[0024] As a preferred solution of the present invention, in step 400, the transmission position of the coated fabric can be automatically corrected based on the sum of the horizontal coordinate values ​​of the detection points on both sides of the gypsum board being zero, so that the sum of the horizontal coordinate values ​​of the detection points on both sides of the coated fabric is also zero.

[0025] In order to solve the above technical problems, the present invention further provides the following technical solutions: a gypsum board laminating automatic deviation correction device, comprising:

[0026] A through slot is provided at both ends of the tensioning output roller at the bottom of the tensioning reel group, and a U-shaped push plate is installed inside the through slot, the open end of the U-shaped push plate is provided with a support panel, and each end of the tensioning output roller is provided with two pushing cylinders for pushing the U-shaped push plate to move and rotate along the through slot;

[0027] Wherein, both ends of the through groove respectively correspond to the positions of the coated fabric passing through the tensioning output roller.

[0028] As a preferred solution of the present invention, the upper and lower groove walls of the through groove are both provided with limiting rails, a vertical rod is provided between the limiting rails, and the U-shaped push plate is provided with an opening for being sleeved on the vertical rod. When a single pushing cylinder pushes the U-shaped push plate alone, the U-shaped push plate rotates around the vertical rod through the opening, so that one of the supporting panels at the same end pushes the coated fabric to tilt on the tensioning output roller;

[0029] When the two pushing cylinders push the U-shaped push plate synchronously, the U-shaped push plate moves along the limiting track through the vertical rod, so that the two supporting panels at the same end push the coated fabric to move on the tensioning output roller.

[0030] As a preferred solution of the present invention, when the pushing cylinders at both ends of the tensioning output roller work in opposite directions, they are used to adjust the tilt angle of the coated fabric;

[0031] When the two pushing cylinders at one end of the tensioning output roller work synchronously, they are used to adjust the central axis of the coated fabric.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention corrects the inclination and overall position of the coated fabric so that the fabric can be evenly aligned with the inclined gypsum board. At the same time, the fabric can also be evenly aligned with the vertically distributed gypsum board, thereby improving the adaptability of the fabric correction and increasing the stability of the uniform coating of the gypsum board. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0035] Figure 1 A schematic flow chart of an automatic deviation-correcting method for laminating provided in an embodiment of the present invention;

[0036] Figure 2 A three-dimensional schematic diagram of an automatic deviation-correcting device for laminating provided by an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of the front installation of a vertical pole provided by an embodiment of the present invention;

[0038] Figure 4 A schematic cross-sectional top view of a U-shaped push plate provided in an embodiment of the present invention.

[0039] The numbers in the figure represent the following:

[0040] 1-tensioning output roller; 2-through groove; 3-U-shaped push plate; 4-pushing cylinder; 5-limiting track; 6-vertical rod; 7-opening; 8-pushing panel. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] like Figure 1 As shown, the present invention provides an automatic correction method for gypsum board lamination. The lamination work in this embodiment specifically refers to adding a layer of decorative surface material for decoration on the outer surface of the gypsum board body or the facing paper. After the gypsum board has gone through the production process such as cutting and drying, the formed gypsum board is transferred to the laminating system, and one surface (generally the back) and four sides of the gypsum board are laminated.

[0043] In order to completely laminate the four sides of the gypsum board, it is necessary to ensure that the laminated fabric is evenly aligned with the gypsum board so that the length of the four fabric sides extending beyond the gypsum board is exactly the same as the thickness of the gypsum board. Therefore, it is necessary to automatically correct the laminating fabric. When the position of the laminated fabric and the gypsum board deviates, the laminated fabric or the gypsum board is adjusted in time to improve the stability of the laminating work.

[0044] The automatic deviation correction method for laminating specifically includes the following steps:

[0045] Step 100: Real-time capture of the image of the gypsum board transmitted on the gypsum board conveying unit and the image of the coated fabric transmitted on the tensioning reel group.

[0046] In step 100, the shooting module on the gypsum board conveying unit is set directly above the gypsum board conveying unit, the shooting module on the tensioning reel group is located downstream of the tensioning output roller and close to the pressing position of the coated fabric, and the tensioning output roller of the tensioning reel group is provided with an automatic correction mechanism, which is used to adjust the position of the coated fabric passing through the output roller.

[0047] It should be noted that, in this embodiment, the center point of the tensioning output roller is on the same vertical plane as the conveying unit of the gypsum board. As long as the center axis of the coated fabric coincides with the center point of the tensioning output roller, and the center axis of the gypsum board coincides with the center axis of the conveying unit, the coated fabric can definitely be evenly laid and adhered to the surface of the gypsum board, and the length of the coated fabric exceeding the two sides of the gypsum board is the same.

[0048] A correction mechanism is also provided on the conveying unit of the gypsum board, which is used to correct the position of the two side edges of the gypsum board parallel to the conveying direction, so that the distance between the two side edges of the gypsum board and the corresponding side edges of the conveying unit are the same. The correction mechanism on the gypsum board can specifically use a tapered frame plate for position correction. The spacing of the tapered frame plates decreases successively along the conveying direction, and the center position of the tapered frame plates always coincides with the center axis of the conveying unit.

[0049] Step 200 : Taking the direction of the central axis of the conveying unit in the gypsum board image as the Y axis and the directions of the two sides of the gypsum board as the X axis, determine the horizontal coordinate values ​​corresponding to the detection points on both sides of the gypsum board.

[0050] Step 300: Determine the horizontal coordinate values ​​corresponding to the detection points on both sides of the coated fabric, using the conveying direction of the coated fabric in the coated fabric image as the Y axis and the direction of the central axis of the tensioning reel group as the X axis.

[0051] Since when the conveying direction of the coated fabric is the Y-axis, the origin formed by the intersection of the Y-axis and the X-axis of the coated fabric image coincides with the center position of the tensioning reel group, and when the direction of the central axis of the conveying unit is the Y-axis, the origin formed by the intersection of the Y-axis and the X-axis in the gypsum board image and the origin formed by the intersection of the Y-axis and the X-axis of the coated fabric image are on the same straight line, it is only necessary to detect the horizontal coordinate values ​​corresponding to the detection points on both sides of the coated fabric and the difference between the horizontal coordinate values ​​corresponding to the detection points on both sides of the gypsum board to determine whether the gypsum board and the coated fabric are completely aligned.

[0052] Step 400: Calculate the difference between the horizontal coordinate values ​​corresponding to the two sides of the gypsum board and the horizontal coordinate values ​​corresponding to the two sides of the coated fabric. Automatically correct the position of the coated fabric to ensure that the horizontal coordinate difference between the two sides of the gypsum board and the coated fabric is the same. Because the width of the coated fabric is greater than the width of the gypsum board, the horizontal coordinate values ​​corresponding to the two sides of the gypsum board are not the same as the horizontal coordinate values ​​corresponding to the two sides of the coated fabric. To determine whether the coated fabric and the gypsum board are aligned, if the absolute value of the horizontal coordinate difference between the detection points on the gypsum board and the coated fabric is the same, then the gypsum board and the coated fabric are considered to be aligned.

[0053] Specifically, in step 400, the method for determining whether the gypsum board and the coated fabric are evenly aligned is as follows:

[0054] Select multiple groups of detection points on both sides of the gypsum board in the gypsum board image, and select multiple groups of detection points on both sides of the coated fabric in the coated fabric image;

[0055] The horizontal coordinates of multiple groups of detection points on the gypsum board are compared respectively, and whether the gypsum board is offset is determined based on the difference range of multiple horizontal coordinates of the gypsum board. This step is to judge the horizontal coordinates of the detection points on one side of the gypsum board to determine whether the distribution of the gypsum board on the upper surface of the conveying unit is biased.

[0056] The horizontal coordinates of multiple groups of detection points on the coated fabric are compared respectively, and whether the coated fabric is offset is determined based on the difference range of multiple horizontal coordinates of the coated fabric. This step determines the horizontal coordinates of the detection points on one side of the coated fabric to determine whether the coated fabric is biased.

[0057] If the gypsum board is deflected on the conveying unit, that is, when the difference range of multiple horizontal coordinates of the gypsum board exceeds the set threshold, the inclination angle of the gypsum board is calculated based on the horizontal coordinate values ​​of multiple groups of detection points, and the automatic correction mechanism is used to adjust the inclination of the coated fabric to the same as the inclination angle of the gypsum board, so that the coated fabric can be adaptively adjusted to the same inclination as the gypsum board.

[0058] At the same time, the tilt angle of the gypsum board is fed back to adjust the positions of both sides of the gypsum board so that the distances between both sides of the gypsum board and both sides of the conveying unit are the same.

[0059] If the coated fabric is deflected during transmission, when the difference range of multiple horizontal coordinates of the coated fabric exceeds the set threshold, the inclination angle of the coated fabric is calculated based on the horizontal coordinate values ​​of multiple groups of detection points, and the automatic correction mechanism is used to adjust the inclination of the coated fabric until the inclination angle is the same as that of the gypsum board.

[0060] That is, the above process is mainly used to calculate the situation where a single gypsum board or coated fabric is tilted. If the coated fabric is adjusted so that its tilt angle is the same as that of the gypsum board, and negative feedback is given to the adjustment mechanism of the gypsum board, the position of the subsequent gypsum board can be adjusted in time to avoid the tilt of the gypsum board.

[0061] It should be noted that the gypsum board on the conveying unit will not be coated until it has been position-corrected. However, after the position correction, the gypsum board may tilt again during the conveying process. Similarly, the coated fabric may also have the problem of tilted output due to the transmission of multiple rollers during the conveying process. Therefore, the correction method of this embodiment is not only used for correcting the lateral misalignment of the gypsum board and the coated fabric, but also for adapting to the fabric correction work of the inclined gypsum board lamination and the self-correction work of the inclined coated fabric.

[0062] During the laminating operation, since the gypsum board has been position-corrected in advance, the inclination of the gypsum board and the laminating fabric will not be very large either. Therefore, the deviation correction of the laminating fabric in this embodiment is a deviation correction work within a small range.

[0063] If the gypsum board is not tilted, the main thing to do is to adjust the alignment of the two sides of the gypsum board with the two sides of the laminated fabric. The specific method of adjusting the alignment of the laminated fabric and the gypsum board is as follows:

[0064] When the multiple horizontal coordinate difference ranges of the coated fabric and the multiple horizontal coordinate difference ranges of the coated fabric do not exceed the set threshold, the horizontal coordinate difference corresponding to the same side of the gypsum board and the coated fabric is calculated respectively;

[0065] When the calculated horizontal coordinate differences on both sides are the same, there is no need to automatically correct the position of the coated fabric, and the coated fabric and the gypsum board are bonded together using the pressing roller;

[0066] When the calculated horizontal coordinate differences on both sides are different, the position of the coated fabric is automatically corrected so that the coated fabric is evenly laid on the gypsum board surface.

[0067] The transmission position of the coated fabric can also be automatically corrected based on the sum of the horizontal coordinate values ​​of the detection points on both sides of the gypsum board being zero as a reference, so that the sum of the horizontal coordinate values ​​of the detection points on both sides of the coated fabric is also zero, instead of calculating the horizontal coordinate difference between the gypsum board and the two sides of the coated fabric.

[0068] In addition, the automatic correction mechanism mentioned in the above-mentioned gypsum board laminating automatic correction method, such as Figure 2 Only Figure 4 As shown, it specifically includes: a through groove 2 arranged at both ends of the tensioning output roller 1 at the bottom of the tensioning reel group, and a U-shaped push plate 3 installed inside the through groove 2, the open end of the U-shaped push plate 3 is provided with a support panel 8, and each end of the tensioning output roller 1 is provided with two pushing cylinders 4 for pushing the U-shaped push plate 3 to move and rotate along the through groove 2.

[0069] The two ends of the through groove 2 correspond to the positions of the coated fabric passing through the tensioning output roller 1 .

[0070] The upper and lower groove walls passing through the groove 2 are both provided with limiting rails 5, and vertical rods 6 are provided between the limiting rails 5. The U-shaped push plate 3 is provided with an opening 7 for being mounted on the vertical rod 6. When a single pushing cylinder 4 pushes the U-shaped push plate 3 alone, the U-shaped push plate 3 rotates around the vertical rod 6 through the opening 7, so that one of the support panels 8 at the same end pushes the coated fabric to tilt on the tensioning output roller 1.

[0071] When the two pushing cylinders 4 push the U-shaped push plate 3 synchronously, the U-shaped push plate 3 moves along the limiting track 5 through the vertical rod 6, so that the two supporting panels 8 at the same end push the coated fabric to move on the tensioning output roller 1.

[0072] When the pushing cylinders 4 at both ends of the tensioning output roller 1 work in opposite directions, it is used to adjust the inclination angle of the coated fabric.

[0073] When the two pushing cylinders 4 at one end of the tensioning output roller 1 work synchronously, they are used to adjust the central axis of the coated fabric.

[0074] In this embodiment, the automatic correction mechanism can conveniently and timely adjust the inclination angle of the coated fabric during output, so that the inclined coated fabric can be aligned with the inclined gypsum board. The specific method is: the pushing cylinders 4 at both ends of the tensioning output roller 1 work in opposite directions to achieve left or right adjustment of the coated fabric, thereby adjusting the inclination of the coated fabric.

[0075] At the same time, the automatic deviation correction mechanism of this embodiment can also adjust the position of the coated fabric. When the sum of the horizontal coordinates of the detection points on both sides of the coated fabric is not equal to zero, it means that the center position of the coated fabric does not match the central axis of the tensioning output roller 1. At this time, the two pushing cylinders 4 at a single end of the tensioning output roller 1 work synchronously, and the coated fabric moves along the surface of the tensioning output roller 1 to adjust the central axis of the coated fabric.

[0076] Furthermore, if the position of the coated fabric is offset, a correction mechanism can be directly set at the position of the fabric reel to adjust the reel position of the automatic unwinder in real time to ensure that the surface material is evenly coated on the left and right.

[0077] This embodiment corrects the inclination and overall position of the coated fabric so that the fabric can be evenly aligned with the inclined gypsum board. At the same time, the fabric can also be evenly aligned with the vertically distributed gypsum board, which has high adaptability and strong stability.

[0078] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A method for automatically correcting the deviation of a gypsum board coating, characterized in that: The following steps are involved: Step 100: Real-time capture of an image of the gypsum board being transmitted on the gypsum board conveying unit and an image of the coated fabric being transmitted on the tensioning reel assembly; Step 200: Taking the direction of the central axis of the conveying unit in the gypsum board image as the Y axis and the directions of the two sides of the gypsum board as the X axis, determine the horizontal coordinate values ​​corresponding to the detection points on the two sides of the gypsum board; Step 300: Taking the conveying direction of the coated fabric in the coated fabric image as the Y-axis and the direction of the central axis of the tensioning reel group as the X-axis, determine the horizontal coordinate values ​​corresponding to the detection points on both sides of the coated fabric; Step 400: Calculate the difference between the horizontal coordinate values ​​corresponding to the two sides of the gypsum board and the horizontal coordinate values ​​corresponding to the two sides of the coated fabric, and use automatic deviation correction of the position of the coated fabric to make the horizontal coordinate difference between the two sides of the gypsum board and the coated fabric the same. In step 400, the method for determining whether the gypsum board and the coated fabric are evenly aligned is as follows: Select multiple groups of detection points on both sides of the gypsum board in the gypsum board image, and select multiple groups of detection points on both sides of the coated fabric in the coated fabric image; Comparing the horizontal coordinates of multiple groups of detection points on the gypsum board respectively, and judging whether the gypsum board is offset according to the differences of the multiple horizontal coordinates of the gypsum board; The horizontal coordinates of multiple groups of detection points on the coated fabric are compared respectively, and whether the coated fabric is offset is determined according to the difference values ​​of the multiple horizontal coordinates of the coated fabric.

2. The automatic deviation correction method for gypsum board coating according to claim 1, characterized in that: In step 100, the shooting module on the gypsum board conveying unit is set directly above the gypsum board conveying unit, the shooting module on the tensioning reel group is located downstream of the tensioning output roller and close to the pressing position of the coated fabric, and the tensioning output roller of the tensioning reel group is provided with an automatic correcting device, which is used to adjust the position of the coated fabric passing through the output roller.

3. The automatic deviation correction method for gypsum board coating according to claim 2, characterized in that: The central axis of the gypsum board conveying unit and the central axis of the tensioning output roller of the tensioning reel group are located in the same vertical plane.

4. The automatic deviation correction method for gypsum board coating according to claim 2, characterized in that: When the difference between the multiple horizontal coordinates of the gypsum board exceeds a set threshold, the inclination angle of the gypsum board is calculated based on the horizontal coordinate values ​​of the multiple groups of detection points, and the inclination of the coated fabric is adjusted to be the same as the inclination angle of the gypsum board using the automatic correction device, so that the coated fabric is adaptively adjusted to the same inclination as the gypsum board; Feedback the tilt angle of the gypsum board to adjust the positions of the two side edges of the gypsum board so that the two sides of the gypsum board are at the same distance from the two side edges of the conveying unit; When the difference between multiple horizontal coordinates of the coated fabric exceeds a set threshold, the inclination angle of the coated fabric is calculated according to the horizontal coordinate values ​​of multiple groups of detection points, and the automatic correction device is used to adjust the inclination of the coated fabric until the inclination angle is the same as that of the gypsum board.

5. The automatic deviation correction method for gypsum board coating according to claim 1, characterized in that: When the range of the multiple horizontal coordinate differences of the coated fabric does not exceed the set threshold, the horizontal coordinate difference corresponding to the same side of the gypsum board and the coated fabric is calculated; When the calculated horizontal coordinate differences on both sides are the same, there is no need to automatically correct the position of the coated fabric, and the coated fabric and the gypsum board are bonded together using the pressing roller; When the calculated horizontal coordinate differences on both sides are different, the position of the coated fabric is automatically corrected so that the coated fabric is evenly laid on the gypsum board surface.

6. The automatic deviation correction method for gypsum board coating according to claim 5, characterized in that: In step 400, the transmission position of the coated fabric can be automatically corrected based on the sum of the horizontal coordinate values ​​of the detection points on both sides of the gypsum board being zero, so that the sum of the horizontal coordinate values ​​of the detection points on both sides of the coated fabric is also zero.

7. An automatic deviation-correcting device based on the automatic deviation-correcting method for gypsum board lamination according to any one of claims 1 to 6, characterized in that: include: A through groove (2) is provided at both ends of the tensioning output roller (1) at the bottom of the tensioning reel group, and a U-shaped push plate (3) is installed inside the through groove (2), the open end of the U-shaped push plate (3) is provided with a support panel (8), and each end of the tensioning output roller (1) is provided with two pushing cylinders (4) for pushing the U-shaped push plate (3) to move and rotate along the through groove (2); Wherein, both ends of the through groove (2) respectively correspond to the positions of the coated fabric passing through the tensioning output roller (1).

8. The automatic deviation-correcting device according to claim 7, characterized in that: The upper and lower groove walls of the through groove (2) are both provided with limiting rails (5), a vertical rod (6) is provided between the limiting rails (5), and an opening (7) for being sleeved on the vertical rod (6) is provided on the U-shaped push plate (3). When a single pushing cylinder (4) pushes the U-shaped push plate (3) alone, the U-shaped push plate (3) rotates around the vertical rod (6) through the opening (7), so that one of the supporting panels (8) at the same end pushes the coated fabric to tilt on the tensioning output roller (1); When the two pushing cylinders (4) push the U-shaped push plate (3) synchronously, the U-shaped push plate (3) moves along the limiting track (5) through the vertical rod (6), so that the two supporting panels (8) at the same end push the coated fabric to move on the tensioning output roller (1).

9. The automatic deviation-correcting device according to claim 7, characterized in that: When the pushing cylinders (4) at both ends of the tensioning output roller (1) move in opposite directions, they are used to adjust the tilt angle of the coated fabric; When the two pushing cylinders (4) at one end of the tensioning output roller (1) work synchronously, they are used to adjust the central axis of the coated fabric.

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