A system for automatically adjusting the edge profile of a gypsum board

Abstract

The application discloses a system for automatically adjusting the side type of a gypsum board, relates to the field of gypsum board processing and manufacturing, and applies an edge straightener, a belt and a servo motor. The servo motor is driven to drive the edge straightener to approach the side edge of the gypsum board, the belt is driven to drive the gypsum board to move, the edge straightener is moved relative to the side edge of the gypsum board, and thus the shaping of the side edge of the gypsum board is realized, manual work is saved, and the shaping effect of the side edge of the gypsum board is more stable. The system further applies a gypsum board position detection device and an analysis processing device. The gypsum board position detection device detects the position of the gypsum board relative to the belt and generates gypsum board position information, which is analyzed and processed by the analysis processing device. The distance between the edge straightener and the side edge of the gypsum board is calculated and analyzed, and then the servo motor is driven to drive the edge straightener to approach the side edge of the gypsum board.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gypsum board processing and manufacturing, and particularly relates to a system for automatically adjusting the edge type of a gypsum board. BACKGROUND

[0002] Gypsum board is a material made of building gypsum as a main raw material, and is a kind of building material with light weight, high strength, thin thickness, convenient processing, good sound insulation, heat insulation and fire resistance, and is one of new light boards currently developed.

[0003] In the production process of the gypsum board, and after extrusion forming, the gypsum board needs to be leveled before initial setting ends. In the leveling process, the gypsum slurry will creep with the expansion of the facing paper until the initial setting ends. Therefore, the edge type of the gypsum board needs to be adjusted on the forming belt to ensure a vertical angle close to 90 degrees. In the leveling process, the position of the board edge relative to the forming belt will change over time due to the fluctuation of the slurry density and the swing of the facing paper, which causes the edge type to fail to guarantee a verticality of 90 degrees, resulting in the phenomenon of inside or outside edge turning. In order to avoid the above problems, an automatic gypsum board edge type adjusting system is urgently needed. SUMMARY

[0004] The purpose of the present application is to provide a system for automatically adjusting the edge type of a gypsum board.

[0005] Therefore, the present application discloses a system for automatically adjusting the edge type of a gypsum board, which comprises:

[0006] A pair of edge straighteners are arranged on both sides of the gypsum board to shape the side edges of the gypsum board.

[0007] A belt is used to place the gypsum board and drive the gypsum board to move.

[0008] A gypsum board position detection device is used to detect the position of the gypsum board relative to the belt to generate gypsum board position information.

[0009] A servo motor is connected with the edge straightener to drive the edge straightener to move.

[0010] An analysis processing device drives the servo motor to drive the edge straightener to move according to the gypsum board position information, so that the edge straightener closely fits the side edges of the gypsum board for shaping.

[0011] In some embodiments of the present application, the mechanical structure of the system is further disclosed, which comprises a leveling plate arranged on the top of the gypsum board, a servo motor arranged on the side of the leveling plate, an output shaft of the servo motor connected with a lead screw, the lead screw connected with a sliding block on the side of the leveling plate, the sliding block connected with the edge straightener, and a sliding groove arranged on the side of the leveling plate for the sliding block.

[0012] In some embodiments of the present application, in order to enable the servo motor to drive the edge straightener to move to the side edge of the gypsum board accurately, a method for driving the servo motor is disclosed, which comprises the following steps:

[0013] acquiring the position information of the gypsum board, generating a virtual gypsum board boundary line, analyzing and determining the position of the virtual gypsum board boundary line relative to the belt, generating a control instruction to drive the servo motor to drive the edge straightener to move to the position of the virtual gypsum board boundary line.

[0014] In some embodiments of the present application, in order to generate a virtual gypsum board boundary line with high accuracy, a specific method for generating a virtual gypsum board boundary line is disclosed, which comprises the following steps:

[0015] The gypsum board position detection device comprises a camera unit for acquiring image information.

[0016] The image information is analyzed by using a visual edge detection technology to determine the boundary of the gypsum board, and reference points are established on the determined boundary at a preset interval.

[0017] An analysis plane is established for the reference points of the single-side boundary of the gypsum board, a linear regression straight line is constructed in the analysis plane according to the reference points, and the constructed linear regression straight line is determined as a first boundary line.

[0018] Based on a neural network learning algorithm, a boundary defect judgment model is established by taking a plurality of continuous reference points convex relative to the first boundary line as input parameters and taking corresponding actual defect features as output parameters.

[0019] Based on the boundary defect judgment model, the number of defect features of the reference points relative to the first boundary line is analyzed and judged, and if the number of defect features is greater than a preset value, the first boundary line is determined as a virtual gypsum board boundary line.

[0020] In some embodiments of the present application, in order to make the generated virtual gypsum board boundary line more accurate, the method for generating a virtual gypsum board boundary line is improved, which further comprises the following steps:

[0021] performing visual analysis on the part of the image information that has been shaped well, and determining the side edge of the gypsum board by using visual edge detection technology;

[0022] analyzing the area beside the side edge of the gypsum board in the image information by using visual detection technology, determining the defect line different from the side edge of the gypsum board, and correcting the virtual gypsum boundary line based on the number of the defect line.

[0023] In some embodiments of the present application, a method for correcting the virtual gypsum boundary line is disclosed, and the method for correcting the virtual gypsum boundary line comprises:

[0024] establishing a correlation expression of the number of the defect line and the inward pushing distance of the virtual gypsum boundary line;

[0025] obtaining the number of the defect line, determining the inward pushing distance of the virtual gypsum boundary line according to the correlation expression, and replacing the original virtual gypsum boundary line with the inward pushed virtual gypsum boundary line;

[0026] The correlation expression comprises:

[0027] y=k i ·lnx

[0028] wherein y is the inward pushing distance of the virtual gypsum boundary line, x is the number of the defect line, k i is an inward pushing distance adjustment coefficient.

[0029] In some embodiments of the present application, a specific method for determining the inward pushing distance adjustment coefficient is disclosed, and the method for determining the inward pushing distance adjustment coefficient comprises:

[0030] establishing a defect line number corresponding group x0[x1, x2, x3, …, xn], wherein x1 is a first preset defect line number value, x2 is a second preset defect line number value, x3 is a third preset defect line number value, xn is an n-th preset defect line number value, and x1

[0031] establishing an inward pushing distance coefficient corresponding group k[k1, k2, k3, …, kn], wherein k1 is a first preset adjustment coefficient, k2 is a second preset adjustment coefficient, k3 is a third preset adjustment coefficient, kn is an n-th preset adjustment coefficient, and k1

[0032] obtaining the number x of the defect line;

[0033] if x≤x1, the first preset adjustment coefficient k1 is determined as the inward pushing distance adjustment coefficient;

[0034] If x1

[0035] If x2

[0036] …

[0037] If xn-1

[0038] In some embodiments of the present application, a method for generating a virtual plaster boundary line is also disclosed, the method for generating a virtual plaster boundary line further comprises:

[0039] performing visual analysis on the part of the image information that has been shaped, and determining the side edge of the plasterboard by using visual edge detection technology;

[0040] analyzing the area beside the side edge of the plasterboard in the image information by using visual detection technology, and determining the defect line different from the side edge of the plasterboard in real time;

[0041] If the number of the defect line is greater than a preset value, the virtual plaster boundary line is pushed to the inside of the plasterboard according to a preset inside pushing distance, and the edge shaper is moved to the position of the virtual plaster boundary line to shape the side edge of the plasterboard;

[0042] If the number of the defect line is still greater than the preset value during the shaping process, the virtual plaster boundary line is continuously pushed to the inside of the plasterboard according to the preset inside pushing distance until the number of the defect line is less than the preset value.

[0043] In some embodiments of the present application, in order to determine the driving parameter of the servo motor, a method for determining the position of the edge shaper is disclosed, the method for determining the position of the edge shaper comprises:

[0044] determining the rotation amount of the servo motor according to the past driving log of the servo motor, to determine the distance of the movement of the edge shaper to the direction of the belt, and further determine the position of the edge shaper.

[0045] The present application discloses a system for automatically adjusting the edge type of a plasterboard, which has the following advantages in shaping the side edge of the plasterboard:

[0046] 1. The edge shaper, the belt and the servo motor are applied, the edge shaper is driven to approach the side edge of the plasterboard by the servo motor, the belt drives the movement of the plasterboard, so that the edge shaper moves relative to the side edge of the plasterboard, and the shaping of the side edge of the plasterboard is realized, which saves labor and makes the shaping effect of the side edge of the plasterboard more stable.

[0047] 2. The gypsum board position detection device and the analysis processing device are also applied. The gypsum board position detection device detects the position of the gypsum board relative to the belt and generates the gypsum board position information for the analysis processing device to analyze and process, to calculate and analyze the distance between the edge trimmer and the side edge of the gypsum board, and to drive the servo motor to drive the edge trimmer to approach the side edge of the gypsum board.

[0048] The technical solutions of the present application are further described below through the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 FIG. 1 is a schematic diagram of the mechanical layer of the system for automatically adjusting the edge type of the gypsum board in the embodiment of the present application;

[0050] Figure 2 FIG. 2 is a flowchart of the method for generating the virtual gypsum board boundary line in the embodiment of the present application.

[0051] REFERENCE NUMERALS

[0052] 1. edge trimmer; 2. gypsum board; 3. belt; 4. gypsum board position detection device; 5. servo motor; 6. leveling plate; 7. lead screw; 8. sliding block. DETAILED DESCRIPTION

[0053] The technical solutions of the present application are further described below through the drawings and examples.

[0054] The technical solutions of the present application will be described clearly and completely in combination with the drawings and specific embodiments. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and cannot be understood as a limitation on the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments according to the content of the present application. In the present application, unless otherwise explicitly specified and limited, the technical terms used in the present application should be understood as the general meaning understood by the skilled person in the present application. The terms "connected", "connected", "fixed", "arranged" and the like should be understood broadly, which can be fixed connection, can also be detachable connection, or can be integrated; can be directly connected, or indirectly connected through an intermediate medium; can be mechanical connection, or electrical connection. Unless otherwise explicitly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application according to the specific circumstances. Unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above" or "above" or "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below" or "below" or "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature. The relationship terms such as first, second and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0055] Embodiment:

[0056] The purpose of the present application is to provide a system capable of automatically adjusting the edge type of gypsum board.

[0057] Therefore, the present application discloses a system for automatically adjusting the edge type of gypsum board, which comprises a plurality of edge straighteners, a belt, a gypsum board position detection device, a servo motor and an analysis processing device.

[0058] The edge straighteners are arranged on both sides of the gypsum board and are used to shape the side edges of the gypsum board.

[0059] The belt is used to place the gypsum board and drive the gypsum board to move.

[0060] The gypsum board position detection device is used to detect the position of the gypsum board relative to the belt to generate gypsum board position information.

[0061] The servo motor is connected with the edge straightener and used to drive the edge straightener to move.

[0062] The analysis processing device drives the servo motor to drive the edge straightener to move according to the gypsum board position information, so that the edge straightener closely adheres to the side edge of the gypsum board to reshape.

[0063] In some embodiments of the present application, the mechanical structure of the system is further disclosed, which further comprises a leveling plate arranged on the top of the gypsum board, a servo motor arranged on the side of the leveling plate, an output shaft of the servo motor connected with a lead screw, the lead screw screw-connected with a side of a sliding block, the sliding block slidingly connected with the side of the leveling plate, the sliding block connected with the edge straightener, and a sliding channel arranged on the side of the leveling plate for the sliding block.

[0064] In some embodiments of the present application, in order to enable the servo motor to drive the edge straightener to accurately move to the side edge of the gypsum board, a method for driving the servo motor is disclosed, the method for driving the servo motor by the analysis processing device comprising:

[0065] acquiring the gypsum board position information, generating a virtual gypsum board boundary line, analyzing and determining the position of the virtual gypsum board boundary line relative to the belt, and generating a control instruction to drive the servo motor to drive the edge straightener to move to the position of the virtual gypsum board boundary line.

[0066] It should be understood that driving the servo motor to drive the edge straightener to move to the position of the virtual gypsum board boundary line also needs to determine the position of the edge straightener, and the method for determining the position of the edge straightener can be to determine according to the past driving log of the servo motor, the past driving log of the servo motor including the initial position of the edge straightener and the rotation amount of the servo motor, and each rotation amount of the servo motor corresponds to the distance of the edge straightener advancing to the gypsum board.

[0067] In some embodiments of the present application, in order to be able to generate a virtual gypsum board boundary line with high accuracy, the specific method for generating a virtual gypsum board boundary line is disclosed, the method for generating a virtual gypsum board boundary line comprising:

[0068] The gypsum board position detection device comprises a camera unit, and the camera unit is used to acquire image information.

[0069] In step S100, the image information is analyzed by using a visual edge detection technology to determine the boundary of the gypsum board, and reference points are established on the determined boundary at a preset interval.

[0070] Step S200, an analysis plane is established for the reference points of the single-side boundary of the gypsum board, a linear regression straight line is constructed in the analysis plane according to the reference points, and the constructed linear regression straight line is determined as a first boundary line.

[0071] Step S300, based on a neural network learning algorithm, a plurality of continuous reference points that are convex relative to the first boundary line are taken as input parameters, and corresponding actual defect features are taken as output parameters, to establish a boundary defect judgment model.

[0072] Step S400, based on the boundary defect judgment model, the number of defect features constructed by the reference points relative to the first boundary line is analyzed and judged, and if the number of defect features is greater than a preset value, the first boundary line is determined as a virtual gypsum board boundary line.

[0073] In some embodiments of the present application, in order to make the generated virtual gypsum boundary line more accurate, the method for generating the virtual gypsum boundary line is improved, and the method for generating the virtual gypsum board boundary line further comprises:

[0074] Firstly, the part of the image information that has been shaped well is visually analyzed, and the visual edge detection technology is used to determine the side edge of the gypsum board.

[0075] Secondly, the area beside the side edge of the gypsum board in the image information is analyzed by using the visual detection technology, the defect lines different from the side edge of the gypsum board are determined, and the virtual gypsum boundary line is corrected based on the number of defect lines.

[0076] It should be understood that the defect lines different from the side edge of the gypsum board are the features that have not been shaped well, even if the shaping of the side edge of the gypsum board fails, resulting in a missing block or even an irregular protrusion. Such structures can be expressed in the form of defect lines. The more the number of defect lines is, the worse the shaping degree of the side edge of the gypsum board is.

[0077] In some embodiments of the present application, a method for correcting the virtual gypsum boundary line is disclosed, and the method for correcting the virtual gypsum boundary line comprises:

[0078] Firstly, an associated relationship expression of the number of defect lines and the inward pushing distance of the virtual gypsum boundary line is established.

[0079] Secondly, the number of defect lines is obtained, the inward pushing distance of the virtual gypsum boundary line is determined according to the associated relationship expression, and the virtual gypsum boundary line after the inward pushing replaces the original virtual gypsum boundary line.

[0080] The associated relationship expression comprises:

[0081] y=ki • Inx

[0082] Wherein, y is the inner pushing distance of the virtual plaster boundary line, x is the number of flaw lines, k is the inner pushing distance adjustment coefficient. i The inner pushing distance adjustment coefficient.

[0083] In some embodiments of the present application, a specific method for determining the inner pushing distance adjustment coefficient is disclosed, and the method for determining the inner pushing distance adjustment coefficient comprises:

[0084] Firstly, a group of flaw line numbers x0 [x1, x2, x3, …, xn] is established, wherein x1 is the first preset flaw line number value, x2 is the second preset flaw line number value, x3 is the third preset flaw line number value, xn is the nth preset flaw line number value, and x1 < x2 < x3 < … < xn.

[0085] Secondly, a group of inner pushing distance coefficients k [k1, k2, k3, …, kn] is established, wherein k1 is the first preset adjustment coefficient, k2 is the second preset adjustment coefficient, k3 is the third preset adjustment coefficient, kn is the nth preset adjustment coefficient, and k1 < k2 < k3 < … < kn.

[0086] Thirdly, the number of flaw lines x is obtained.

[0087] Fourthly, the comparative value of the adjustment coefficient is analyzed and determined.

[0088] If x ≤ x1, the first preset adjustment coefficient k1 is determined as the inner pushing distance adjustment coefficient.

[0089] If x1 < x ≤ x2, the second preset adjustment coefficient k2 is determined as the inner pushing distance adjustment coefficient.

[0090] If x2 < x ≤ x3, the third preset adjustment coefficient k3 is determined as the inner pushing distance adjustment coefficient.

[0091] …

[0092] If xn-1 < x ≤ xn, the nth preset adjustment coefficient kn is determined as the inner pushing distance adjustment coefficient.

[0093] In some embodiments of the present application, a method for generating a virtual plaster boundary line is also disclosed, and the method for generating a virtual plaster boundary line further comprises:

[0094] Firstly, the part of the image information that has been shaped well is visually analyzed, and the visual edge detection technology is used to determine the side of the plasterboard.

[0095] Secondly, the image information is analyzed by using visual detection technology to determine the defect lines on the side of the plasterboard in real time.

[0096] Thirdly, if the number of the defect lines is greater than the preset value, the virtual plasterboard boundary line is pushed to the inside of the plasterboard according to the preset pushing distance, and the edge straightener is moved to the position of the virtual plasterboard boundary line to shape the side of the plasterboard.

[0097] If the number of the defect lines is still greater than the preset value during the shaping process, the virtual plasterboard boundary line is continuously pushed to the inside of the plasterboard according to the preset pushing distance until the number of the defect lines is less than the preset value.

[0098] In some embodiments of the present application, in order to determine the driving parameters of the servo motor, a method for determining the position of the edge straightener is disclosed, which comprises:

[0099] According to the past driving log of the servo motor, the rotation amount of the servo motor is determined to determine the distance of the movement of the edge straightener to the direction of the belt, and then the position of the edge straightener is determined.

[0100] The present application discloses a system for automatically adjusting the edge type of a plasterboard, which has the following advantages in shaping the side of the plasterboard:

[0101] 1. The edge straightener, the belt and the servo motor are applied, the edge straightener is driven to approach the side of the plasterboard by the servo motor, the belt drives the plasterboard to move, so that the edge straightener moves relative to the side of the plasterboard, and then the shaping of the side of the plasterboard is realized, which saves labor and makes the shaping effect of the side of the plasterboard more stable.

[0102] 2. The plasterboard position detection device and the analysis processing device are also applied, the position of the plasterboard relative to the belt is detected by the plasterboard position detection device, and the plasterboard position information is generated for the analysis processing device to analyze and process, the distance between the edge straightener and the side of the plasterboard is calculated and analyzed, and then the servo motor is driven to drive the edge straightener to approach the side of the plasterboard.

[0103] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application but not to limit them, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A system for automatically adjusting the edge profile of a gypsum board, characterized by, The application relates to a gypsum board shaping device, which comprises the following parts: a pair of edge straighteners arranged on both sides of the gypsum board for shaping the side edges of the gypsum board; a belt for placing and moving the gypsum board; a gypsum board position detection device for detecting the position of the gypsum board relative to the belt to generate gypsum board position information; a servo motor connected with the edge straighteners for moving the edge straighteners; an analysis processing device for driving the servo motor to move the edge straighteners according to the gypsum board position information so that the edge straighteners closely adhere to the side edges of the gypsum board for shaping; the method for driving the servo motor by the analysis processing device comprises the following steps: acquiring the gypsum board position information, generating a virtual gypsum board boundary line, analyzing and determining the position of the virtual gypsum board boundary line relative to the belt, and generating a control instruction to drive the servo motor to move the edge straighteners to the position of the virtual gypsum board boundary line; the method for generating the virtual gypsum board boundary line comprises the following steps: the gypsum board position detection device comprises a camera unit for acquiring image information; the image information is analyzed by using a visual edge detection technology to determine the boundary of the gypsum board, and reference points are established on the determined boundary at a preset interval; an analysis plane is established for the reference points of the single-side boundary of the gypsum board, a linear regression straight line is constructed in the analysis plane according to the reference points, and the constructed linear regression straight line is determined as a first boundary line; a boundary defect judgment model is established based on a neural network learning algorithm, a plurality of continuous reference points that are convex relative to the first boundary line are taken as input parameters, and corresponding actual defect features are taken as output parameters; the number of defect features of the reference points relative to the first boundary line is analyzed and judged based on the boundary defect judgment model, and if the number of defect features is greater than a preset value, the first boundary line is determined as a virtual gypsum board boundary line; the method for generating the virtual gypsum board boundary line further comprises the following steps: the part of the image information that has been shaped is visually analyzed, and the side edge of the gypsum board is determined by using a visual edge detection technology; the area beside the side edge of the gypsum board in the image information is analyzed by using a visual detection technology to determine a defect line different from the side edge of the gypsum board, and the virtual gypsum board boundary line is corrected based on the number of defect lines; the method for correcting the virtual gypsum board boundary line comprises the following steps: an associated relation expression of the number of defect lines and the inward pushing distance of the virtual gypsum board boundary line is established; the number of defect lines is acquired, the inward pushing distance of the virtual gypsum board boundary line is determined according to the associated relation expression, and the inwardly pushed virtual gypsum board boundary line is used to replace the original virtual gypsum board boundary line; the associated relation expression comprises the following steps: wherein y is the inside pushing distance of the virtual gypsum board boundary line, x is the number of flaw lines, k i is the inside pushing distance adjustment coefficient; a method for determining the inward pushing distance adjustment coefficient comprises the following steps: a group x0[x1, x2, x3,..., xn] corresponding to the number of defect lines is established, wherein x1 is a first preset defect line number value, x2 is a second preset defect line number value, x3 is a third preset defect line number value, and xn is an nth preset defect line number value, and x1 < x2 < x3 < … < xn; A group k [k1, k2, k3, …, kn] corresponding to the inner pushing distance coefficient is established, wherein k1 is a first preset adjustment coefficient, k2 is a second preset adjustment coefficient, k3 is a third preset adjustment coefficient, kn is an nth preset adjustment coefficient, and k1 < k2 < k3 < … < kn; An amount x of the flaw lines is acquired; If x ≤ x1, the first preset adjustment coefficient k1 is determined as the inner pushing distance adjustment coefficient; If x1 < x ≤ x2, the second preset adjustment coefficient k2 is determined as the inner pushing distance adjustment coefficient; If x2 < x ≤ x3, the third preset adjustment coefficient k3 is determined as the inner pushing distance adjustment coefficient; …； If xn-1 < x ≤ xn, the nth preset adjustment coefficient kn is determined as the inner pushing distance adjustment coefficient.

2. A system for automatically adjusting the edge profile of a gypsum board as defined in claim 1, wherein, The leveling plate is provided on the top of the gypsum board, and a servo motor is provided on the side of the leveling plate. An output shaft of the servo motor is connected with a lead screw, the lead screw is connected with a side of a sliding block, the sliding block is slidingly connected with the side of the leveling plate, the sliding block is connected with the edge straightener, and a slide is further provided on the side of the leveling plate for the sliding block to slide.

3. A system for automatically adjusting the edge profile of a gypsum board as defined in claim 1, wherein, The method for generating the virtual gypsum board boundary line further comprises: performing visual analysis on the part of the image information that has been shaped, and determining the side edge of the gypsum board by using a visual edge detection technology; analyzing the area beside the side edge of the gypsum board in the image information by using a visual detection technology, and determining the flaw lines different from the side edge of the gypsum board in real time; if the amount of the flaw lines is greater than a preset value, the virtual gypsum board boundary line is pushed inward to the inside of the gypsum board according to a preset inner pushing distance, and the edge straightener is moved to the position of the virtual gypsum board boundary line to shape the side edge of the gypsum board; if the amount of the flaw lines is still greater than the preset value during the shaping process, the virtual gypsum board boundary line is continuously pushed inward to the inside of the gypsum board according to the preset inner pushing distance until the amount of the flaw lines is less than the preset value.

4. A system for automatically adjusting the edge profile of a gypsum board as defined in claim 1, wherein, The method for determining the position of the edge straightener comprises: determining the rotation amount of the servo motor according to the past driving log of the servo motor, determining the distance of the movement of the edge straightener to the direction of the belt, and determining the position of the edge straightener.

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