Edge sealing control method, device and equipment for gypsum plaster board and medium

Abstract

The invention discloses a gypsum plaster board edge sealing control method and device, equipment and a medium, and relates to the technical field of gypsum board edge sealing control, and the method comprises the following steps: obtaining a detection image of a target gypsum board, and recognizing a wave crest position and a wave trough position in a wave-shaped side edge contour in the target gypsum board; acquiring a first distance and a second distance between the wave crest position and the wave trough position; the first interval is the vertical interval between the wave crest position and the wave trough position in the conveying direction horizontal to the target gypsum board, and the second interval is the vertical interval between the wave crest position and the wave trough position in the conveying direction perpendicular to the target gypsum board; the conveying speed of the target gypsum board is obtained; inputting the conveying speed, the first spacing and the second spacing into a preset first correlation model to obtain a theoretical average moving speed of the rolling mechanism; the rolling mechanism is used for pressing the edge sealing strip to the wave-shaped side edge of the target gypsum board. The edge sealing strip pasting device has the advantage that the pasting effect of the edge sealing strip and the wave-shaped side edge of the gypsum board is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gypsum board edge sealing control, and particularly relates to a paper-faced gypsum board edge sealing control method, device, equipment and medium. BACKGROUND

[0002] The paper-faced gypsum board is a board material prepared from building gypsum as a main raw material, mixed with a proper amount of additives and fibers as a core, and special board paper as a protective surface.

[0003] The paper-faced gypsum board needs to be edge sealed by tightly attaching the edge sealing strip coated with an adhesive to the side edge of the gypsum board. At present, most gypsum boards are rectangular boards, and the side edges thereof are flat surfaces, so that the edge sealing strip can be pressed to the side edge of the gypsum board by a press roller at a constant pressure. However, with the special requirements of some use scenarios of the gypsum board, a kind of gypsum board with a wavy side edge has appeared. The existing gypsum board edge sealing method cannot effectively control the attachment effect of the edge sealing strip and the wavy side edge of the gypsum board, and there are problems of poor attachment or excessive attachment and glue overflow. SUMMARY

[0004] The main purpose of the application is to provide a paper-faced gypsum board edge sealing control method, device, equipment and medium, and to solve the technical problem that the existing gypsum board edge sealing method cannot effectively control the attachment effect of the edge sealing strip and the wavy side edge of the gypsum board.

[0005] To achieve the above purpose, the application provides a paper-faced gypsum board edge sealing control method, which comprises the following steps: An image of a target gypsum board is acquired, and a wavy side edge profile to be edge sealed in the target gypsum board is recognized according to the image; The positions of the wave crests and the wave troughs in the wavy side edge profile are recognized; A first distance and a second distance between the positions of the wave crests and the wave troughs are acquired. The first distance is the vertical distance between the position of the wave crest and the position of the wave trough along the conveying direction of the target gypsum board, and the second distance is the vertical distance between the position of the wave crest and the position of the wave trough along the direction perpendicular to the conveying direction of the target gypsum board; The conveying speed of the target gypsum board is acquired; The conveying speed, the first distance and the second distance are input into a preset first correlation model to obtain a theoretical average moving speed of a roller pressing mechanism. The roller pressing mechanism is used to press the edge sealing strip to the wavy side edge of the target gypsum board, the roller pressing mechanism can move close to or away from the target gypsum board, and the moving direction of the roller pressing mechanism is perpendicular to the conveying direction of the target gypsum board.

[0006] Optionally, the expression of the first correlation model is: L1 / Vm=L2 / Vn; In the formula, L1 is the first distance, L2 is the second distance, Vm is the conveying speed of the target gypsum board, and Vn is the theoretical average moving speed of the roller pressing mechanism.

[0007] Optionally, after obtaining the theoretical average moving speed of the roller pressing mechanism, the method further comprises: controlling the speed of the roller pressing mechanism to advance or retreat according to the theoretical average moving speed, so as to guide the roller pressing mechanism to press the edge strip to the wavy side edge of the target gypsum board; obtaining a real-time extrusion force when the roller pressing mechanism presses the edge strip to the wavy side edge of the target gypsum board; inputting the real-time extrusion force into a preset second correlation model to obtain an instantaneous moving speed of the roller pressing mechanism at the current position.

[0008] Optionally, when the roller pressing mechanism moves relatively from the wave peak position to the wave valley position, the expression of the second correlation model is: V=K1 / P; When the roller pressing mechanism moves relatively from the wave valley position to the wave peak position, the expression of the second correlation model is: V=K2*P; In the formula, V is the instantaneous moving speed of the roller pressing mechanism at the current position, P is the real-time extrusion force, K1 is a first correlation coefficient, and K2 is a second correlation coefficient.

[0009] Optionally, after inputting the real-time extrusion force into the preset second correlation model to obtain the instantaneous moving speed of the roller pressing mechanism at the current position, the method further comprises: obtaining instantaneous moving speeds of the roller pressing mechanism at different time points in a moving cycle T, denoted as V1, V2, V3,..., and V S ; wherein the moving cycle T is the time for the roller pressing mechanism to complete one advancing stroke or one retreating stroke, and S is the sample number of the instantaneous moving speed; obtaining an actual average moving speed V' of the roller pressing mechanism in the moving cycle T according to the plurality of instantaneous moving speeds, V'= (V1+V2+V3+...+V S ) / S; comparing the actual average moving speed V' with the theoretical average moving speed Vn, and obtaining a comparison difference value; correcting the instantaneous moving speed of the roller pressing mechanism at the corresponding position in the next moving cycle T according to the comparison difference value.

[0010] Optionally, the rolling mechanism comprises a pressure roller, a connecting frame movably connected to one side of the pressure roller away from the target gypsum board, a sleeve connected to the other end of the connecting frame, a pressure sensor arranged in the sleeve and fixed to the side wall of the connecting frame, a spring in the sleeve connected to the pressure sensor, and a telescopic cylinder connected to the spring, with the cylinder barrel of the telescopic cylinder located outside the sleeve; acquiring real-time extrusion force of the rolling mechanism when the edge strip is pressed against the wavy side edge of the target gypsum board, comprising: real-time acquisition of pressure data of the pressure sensor; outputting the pressure data as the real-time extrusion force of the rolling mechanism when the edge strip is pressed against the wavy side edge of the target gypsum board.

[0011] Optionally, the first distance and the second distance between the peak position and the valley position are acquired, comprising: constructing a reference coordinate system based on the detection image; wherein the x-axis of the reference coordinate system is perpendicular to the conveying direction of the target gypsum board, and the y-axis of the reference coordinate system is parallel to the conveying direction of the target gypsum board; based on the reference coordinate system, acquiring the coordinates of the peak position as a (x1, y1) and the coordinates of the valley position as b (x2, y2); acquiring the first distance L1 and the second distance L2, L1 = |y1-y2|, L2 = |x1-x2|.

[0012] To achieve the above purpose, the paper gypsum board edge sealing control device is also provided, comprising: an image acquisition module for acquiring a detection image of a target gypsum board, and identifying a wavy side edge profile to be sealed in the target gypsum board according to the detection image; an image recognition module for identifying a peak position and a valley position in the wavy side edge profile; an image data processing module for acquiring a first distance and a second distance between the peak position and the valley position; wherein the first distance is the vertical distance between the peak position and the valley position along the horizontal direction of the conveying direction of the target gypsum board, and the second distance is the vertical distance between the peak position and the valley position along the vertical direction of the conveying direction of the target gypsum board; a parameter acquisition module for acquiring a conveying speed of the target gypsum board; a parameter calculation module for inputting the conveying speed, the first distance and the second distance into a preset first correlation model to obtain a theoretical average moving speed of a rolling mechanism; wherein the rolling mechanism is used for pressing the edge strip against the wavy side edge of the target gypsum board, the rolling mechanism is movable to approach or move away from the target gypsum board, and the moving direction of the rolling mechanism is perpendicular to the conveying direction of the target gypsum board.

[0013] To achieve the above object, the application further provides a computer device, comprising a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize the method.

[0014] To achieve the above object, the application further provides a computer readable storage medium, which stores a computer program, and a processor executes the computer program to realize the method.

[0015] The application can achieve the following beneficial effects: The application first identifies the wave-shaped side edge profile to be edge sealed based on the detection image of the target gypsum board, thereby identifying the wave peak position and the wave trough position in the wave-shaped side edge profile, and calculating the first distance and the second distance between the wave peak position and the wave trough position, wherein the first distance can be regarded as the moving distance of the target gypsum board relative to the roller pressing mechanism from the wave peak position to the wave trough position or from the wave trough position to the wave peak position, and the second distance can be regarded as the advancing distance of the roller pressing mechanism relative to the target gypsum board from the wave peak position to the wave trough position or the retreating distance from the wave trough position to the wave peak position. In combination with the conveying speed of the target gypsum board, the conveying speed, the first distance and the second distance are input into a preset first correlation model, thereby calculating the theoretical average moving speed of the roller pressing mechanism. Based on the theoretical average moving speed, the moving speed of the roller pressing mechanism when advancing or retreating can be effectively guided, so that the roller pressing mechanism can always maintain a certain pressure on the wave-shaped side edge of the target gypsum board in cooperation with the conveying speed of the target gypsum board and the change of the wave peak and wave trough positions, thereby effectively and automatically controlling the fitting effect of the edge sealing strip and the wave-shaped side edge of the gypsum board. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 A flowchart of a paper-faced gypsum board edge sealing control method in an embodiment of the application; Figure 2 A schematic diagram of the roller pressing mechanism pressing the edge sealing strip on the wave-shaped side edge of the target gypsum board in an embodiment of the application; Figure 3 A principle diagram of calculating the first distance and the second distance between the wave peak position and the wave trough position in an embodiment of the application; Figure 4 A structure diagram of the roller pressing mechanism in an embodiment of the application.

[0018] Reference signs: 110 - target gypsum board, 111 - wavy side edge, 120 - rolling mechanism, 121 - compression roller, 122 - connecting frame, 123 - sleeve, 124 - pressure sensor, 125 - spring, 126 - telescopic cylinder, 130 - edge sealing strip.

[0019] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0021] It should be noted that if the present application has a description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0022] Embodiment 1 With reference to Figures 1-4 The present embodiment provides a paper gypsum board edge sealing control method, comprising the following steps: Obtaining a detection image of a target gypsum board 110, and identifying the profile of a wavy side edge 111 to be sealed in the target gypsum board 110 according to the detection image; Identifying the positions of the wave crests and the wave troughs in the profile of the wavy side edge 111; Obtaining a first distance and a second distance between the positions of the wave crests and the wave troughs; wherein the first distance is the vertical distance between the positions of the wave crests and the wave troughs along the horizontal direction of the conveying direction of the target gypsum board 110, and the second distance is the vertical distance between the positions of the wave crests and the wave troughs along the vertical direction of the conveying direction of the target gypsum board 110; Obtaining the conveying speed of the target gypsum board 110; The conveying speed, the first distance and the second distance are input into a preset first correlation model to obtain a theoretical average moving speed of the roller pressing mechanism 120; wherein the roller pressing mechanism 120 is used to press the edge strip 130 to the wavy side edge 111 of the target gypsum board 110, the roller pressing mechanism 120 is movable to approach or move away from the target gypsum board 110, and the moving direction of the roller pressing mechanism 120 is perpendicular to the conveying direction of the target gypsum board 110.

[0023] In the embodiment, the wavy side edge 111 profile to be edge sealed is recognized based on the detection image of the target gypsum board 110, so as to recognize the peak position and the valley position in the wavy side edge 111 profile, and to calculate the first distance and the second distance between the peak position and the valley position, wherein the first distance can be regarded as the moving distance of the target gypsum board 110 relative to the roller pressing mechanism 120 from the peak position to the valley position or from the valley position to the peak position, so that the roller pressing mechanism 120 can always press the edge strip 130 to the wavy side edge 111 of the target gypsum board 110 with a certain pressure, and therefore the roller pressing mechanism 120 also needs to move, and the control of the moving speed of the roller pressing mechanism 120 is the key of the embodiment, when the roller pressing mechanism 120 presses the edge strip 130 from the peak position to the valley position, the roller pressing mechanism 120 needs to move forward to gradually approach the valley position, and similarly, when the roller pressing mechanism 120 presses the edge strip 130 from the valley position to the peak position, the roller pressing mechanism 120 needs to move backward to gradually approach the peak position, based on the principle, therefore the second distance can be regarded as the forward distance of the roller pressing mechanism 120 relative to the target gypsum board 110 from the peak position to the valley position or the backward distance from the valley position to the peak position, and the conveying speed, the first distance and the second distance are input into a preset first correlation model, so as to calculate the theoretical average moving speed of the roller pressing mechanism 120, based on the theoretical average moving speed, the moving speed of the roller pressing mechanism 120 when moving forward or backward can be effectively guided, so that the roller pressing mechanism 120 can always keep a certain pressure on the wavy side edge 111 of the target gypsum board 110 in cooperation with the conveying speed of the target gypsum board 110 and the change of the peak and valley positions, so as to effectively and automatically control the fitting effect of the edge strip 130 and the wavy side edge 111 of the gypsum board.

[0024] As an optional implementation, the expression of the first correlation model is: L1 / Vm=L2 / Vn; In the formula, L1 is the first distance, L2 is the second distance, Vm is the conveying speed of the target gypsum board 110, and Vn is the theoretical average moving speed of the roller pressing mechanism 120.

[0025] In the embodiment, L1 / Vm is the time required for the target gypsum board 110 to move from the wave peak position to the wave valley position or from the wave valley position to the wave peak position relative to the roller pressing mechanism 120, and L2 / Vn is the time required for the roller pressing mechanism 120 to move from the wave peak position to the wave valley position or from the wave valley position to the wave peak position relative to the target gypsum board 110, and the two times are equal, so the above equation can be constructed based on this principle, where the first distance L1, the second distance L2 and the conveying speed Vm of the target gypsum board 110 are known parameters, and the theoretical average moving speed Vn can be calculated by substituting the above equation, and the parameter Vn is input into the control system, which can effectively guide the moving speed of the roller pressing mechanism 120.

[0026] It should be noted that the target gypsum board 110 can be conveyed by a conveyor, and a clamping mechanism is arranged on the conveyor to clamp the target gypsum board 110, so that the target gypsum board 110 only linearly advances without deviation during edge sealing. An industrial camera can be arranged at the front end of the conveyor to collect detection images of the target gypsum board 110 to calculate the data of the first distance L1 and the second distance L2 in advance. Since the profile size of the wavy side edge 111 of the target gypsum board 110 is different according to different specifications, the first distance L1 and the second distance L2 can be calculated according to the profile of the wavy side edge 111 each time, or different conveying speeds Vm of the target gypsum board 110 are required according to different edge sealing processes. After the above parameters are determined before edge sealing, they are brought into the calculation formula of the first correlation model, and the corresponding theoretical average moving speed Vn of the roller pressing mechanism 120 can be calculated, so that the moving speed of the roller pressing mechanism 120 can be automatically adjusted according to the wavy side edge 111 of different specifications of the target gypsum board 110 and / or the different conveying speeds of the target gypsum board 110, and the versatility is strong and manual adjustment is not required.

[0027] As an optional embodiment, after obtaining the theoretical average moving speed of the roller pressing mechanism 120, the following steps are further included: controlling the speed of the roller pressing mechanism 120 to advance or retreat according to the theoretical average moving speed, so as to guide the roller pressing mechanism 120 to press the edge sealing strip 130 to the wavy side edge 111 of the target gypsum board 110; obtaining the real-time extrusion force when the roller pressing mechanism 120 presses the edge sealing strip 130 to the wavy side edge 111 of the target gypsum board 110; inputting the real-time extrusion force into a preset second correlation model to obtain the instantaneous moving speed of the roller pressing mechanism 120 at the current position.

[0028] In the embodiment, the theoretical average moving speed can control the speed of the roller pressing mechanism 120 when advancing or retreating during the edge sealing process. However, due to the different curvatures of the wavy side edge 111 at different positions, if the roller pressing mechanism 120 always moves at a constant speed, there may be a situation of poor edge sealing in the local area. Therefore, in order to further improve the edge sealing effect of the wavy side edge 111, the real-time extrusion force of the roller pressing mechanism 120 when pressing the edge sealing strip 130 to the wavy side edge 111 of the target gypsum board 110 is detected and obtained in real time. The real-time extrusion force is input into a preset second correlation model. The second correlation model can represent the correlation between the real-time extrusion force and the moving speed of the roller pressing mechanism 120, so that the instantaneous moving speed of the roller pressing mechanism 120 at the current position can be calculated. Therefore, by accurately controlling the instantaneous moving speed of the roller pressing mechanism 120 at different regions of the wavy side edge 111, the real-time extrusion force can be controlled to maintain in the ideal pressure range, that is, the edge sealing effect of the roller pressing mechanism 120 on the wavy side edge 111 with different curvatures can be accurately ensured.

[0029] As an optional embodiment, when the roller pressing mechanism 120 moves from the wave peak position to the wave valley position, the expression of the second correlation model is: V=K1 / P; When the roller pressing mechanism 120 moves from the wave valley position to the wave peak position, the expression of the second correlation model is: V=K2*P; In the formula, V is the instantaneous moving speed of the roller pressing mechanism 120 at the current position, P is the real-time extrusion force, K1 is the first correlation coefficient, and K2 is the second correlation coefficient.

[0030] In the embodiment, when the roller pressing mechanism 120 moves from the wave peak position to the wave valley position, the roller pressing mechanism 120 is in the advancing movement state, if the movement is too fast, the pressure of the roller pressing mechanism 120 on the wave-shaped side edge 111 increases, which causes glue overflow, at this time, the instantaneous movement speed of the roller pressing mechanism 120 should be reduced, if the movement is too slow, the pressure of the roller pressing mechanism 120 on the wave-shaped side edge 111 decreases, which causes poor adhesion, at this time, the instantaneous movement speed of the roller pressing mechanism 120 should be increased, therefore, when the roller pressing mechanism 120 is in the advancing movement state, the instantaneous movement speed V of the roller pressing mechanism 120 at the current position is inversely proportional to the detected real-time pressing force P, that is, V = K1 / P, the first correlation coefficient K1 can be calculated from historical experience data, therefore, when the detected real-time pressing force P is relatively large, the instantaneous movement speed V is adaptively reduced, on the contrary, when the detected real-time pressing force P is small, the instantaneous movement speed V is adaptively increased, so as to adaptively regulate the instantaneous movement speed V of the roller pressing mechanism 120 at this stage. Similarly, when the roller pressing mechanism 120 moves from the wave valley position to the wave peak position, the roller pressing mechanism 120 is in the retreating movement state, if the movement is too fast, the pressure of the roller pressing mechanism 120 on the wave-shaped side edge 111 decreases, which causes poor adhesion, at this time, the instantaneous movement speed of the roller pressing mechanism 120 should be reduced, if the movement is too slow, the pressure of the roller pressing mechanism 120 on the wave-shaped side edge 111 increases, which causes glue overflow, at this time, the instantaneous movement speed of the roller pressing mechanism 120 should be increased, therefore, when the roller pressing mechanism 120 is in the retreating movement state, the instantaneous movement speed V of the roller pressing mechanism 120 at the current position is proportional to the detected real-time pressing force P, that is, V = K2*P, similarly, the second correlation coefficient K2 can be calculated from historical experience data, in other words, when the detected real-time pressing force P is large, the instantaneous movement speed V is adaptively increased, on the contrary, when the detected real-time pressing force P is small, the instantaneous movement speed V is adaptively reduced, so as to dynamically adjust the instantaneous movement speed V of the roller pressing mechanism 120 at different sealing edge positions based on the online detected real-time pressing force P and the advancing or retreating movement direction of the roller pressing mechanism 120, so as to ensure the sealing effect of the roller pressing mechanism 120 on the wave-shaped side edge 111 with different curvatures.

[0031] As an optional embodiment, after the real-time pressing force is input into the preset second correlation model to obtain the instantaneous movement speed of the roller pressing mechanism 120 at the current position, the method further includes: obtaining the instantaneous movement speeds of the roller pressing mechanism 120 at different moments in a movement cycle T, denoted as V1, V2, V3, …, Vn S ; wherein the movement cycle T is the time for the roller pressing mechanism 120 to complete one advancing stroke or retreating stroke, and S is the sample number of the instantaneous movement speed; According to the plurality of instantaneous moving speeds, an actual average moving speed V' of the rolling mechanism 120 completing a moving cycle T is obtained, V'= (V1+V2+V3+...+V S ) / S; The actual average moving speed V' is compared with a theoretical average moving speed Vn, and a comparison difference is obtained; According to the comparison difference, the instantaneous moving speed of the rolling mechanism 120 at a corresponding position in the next moving cycle T is corrected.

[0032] In the embodiment, when the rolling mechanism 120 completes a moving cycle, the instantaneous moving speed of the rolling mechanism 120 at different time points (for example, every second time point) can be collected (through a displacement sensor), so that the actual average moving speed V' can be calculated according to the plurality of instantaneous moving speeds. Since it is considered that the instantaneous moving speed V is adjusted only by detecting the real-time extrusion force P, there may be data detection errors and other influencing factors, resulting in inaccurate adjustment. Therefore, the actual average moving speed V' is compared with the theoretical average moving speed Vn to obtain a comparison difference, so that when the rolling mechanism 120 performs the next moving cycle, the instantaneous moving speed of the rolling mechanism 120 at different edge sealing positions can be corrected. Thus, the instantaneous moving speed V is dynamically adjusted by the theoretical average moving speed Vn and the real-time extrusion force P, a closed-loop control is formed by adding an average moving speed verification link, the moving speed of the rolling mechanism 120 is further accurately controlled, and the edge sealing effect is improved.

[0033] It should be noted that when correction is needed, if the actual average moving speed V' is less than the theoretical average moving speed Vn, the comparison difference / T is taken as a compensation value, and the instantaneous moving speed V at each time point is increased by the corresponding compensation value. Similarly, if the actual average moving speed V' is greater than the theoretical average moving speed Vn, the comparison difference / T is taken as a compensation value, and the instantaneous moving speed V at each time point is decreased by the corresponding compensation value.

[0034] As an optional embodiment, after the real-time extrusion force is input into the preset second correlation model to obtain the instantaneous moving speed of the rolling mechanism 120 at the current position, the following steps are further included: An edge sealing image of the rolling mechanism 120 after completing a stretching and contracting movement is obtained; wherein the edge sealing image contains an edge sealed area of the wavy side edge 111; According to the edge sealing image, whether the edge sealed area has a glue overflow or an edge sealing gap defect is identified; If yes, the glue overflow or the edge sealing gap defect in the edge sealed area is identified and marked. According to the defect position, the instantaneous movement speed of the roller pressing mechanism 120 when moving to the target position of the unsealed edge area of the wavy side edge 111 in the next expansion and contraction movement is corrected; wherein the target position is the position where the unsealed edge area and the sealed edge area have the same defect position.

[0035] In the present embodiment, after the roller pressing mechanism 120 completes one expansion and contraction movement, i.e. the roller pressing mechanism 120 completes two movement cycles, i.e. the roller pressing mechanism 120 moves from the first wave crest position to the next wave crest position, or moves from the first wave trough position to the next wave trough position, by further detecting whether there is a glue overflow or a sealing gap (when the sealing strip 130 and the wavy side edge 111 have a obvious gap when the sealing is poor) defect in the sealed edge area in the sealing image, if there is, it means that the instantaneous movement speed of the roller pressing mechanism 120 passing through the defect position deviates, resulting in excessive pressure (glue overflow) or insufficient pressure (sealing gap). Therefore, here, according to the defect type and degree, when the roller pressing mechanism 120 enters the next expansion and contraction movement and moves to the position where the unsealed edge area and the defect position detected in the last cycle are the same, the instantaneous movement speed of the roller pressing mechanism 120 at this position can be adaptively corrected and adjusted, thereby further improving the accurate control of the movement speed of the roller pressing mechanism 120.

[0036] As an optional embodiment, the roller pressing mechanism 120 comprises a pressing roller 121, the pressing roller 121 is movably connected to one side of the target gypsum board 110 through a connecting frame 122, the other end of the connecting frame 122 is connected to a sleeve 123, the sleeve 123 is provided with a pressure sensor 124 fixed to the side wall of the connecting frame 122, the pressure sensor 124 is connected to a spring 125 located in the sleeve 123, the spring 125 is connected to a telescopic cylinder 126, and the cylinder barrel of the telescopic cylinder 126 is located outside the sleeve 123; The real-time extrusion pressure of the roller pressing mechanism 120 when pressing the sealing strip 130 to the wavy side edge 111 of the target gypsum board 110 is obtained, comprising: real-time acquisition of pressure data of the pressure sensor 124; outputting the pressure data as the real-time extrusion pressure of the roller pressing mechanism 120 when pressing the sealing strip 130 to the wavy side edge 111 of the target gypsum board 110.

[0037] In the embodiment, the telescopic cylinder 126 can drive the connecting frame 122 and the compression roller 121 to move telescopically as a whole, so as to control the compression roller 121 to reciprocate to cooperate with the wavy side edge 111 to edge seal the target gypsum board 110 with the edge sealing strip 130. The spring 125 is arranged to enable the compression roller 121 to always press the edge sealing strip 130 with a certain elastic pressure, so as to prevent the case that the instantaneous pressure is too large or too small, and reduce the probability of glue overflow or poor adhesion caused by the use of rigid pressure. At the same time, the pressure sensor 124 can be used to detect the pressure data in real time, and the pressure data can be output as real-time extrusion pressure, so as to meet the edge sealing process control requirements of the target gypsum board 110 with the wavy side edge 111.

[0038] As an optional embodiment, the first distance and the second distance between the peak position and the valley position are obtained, including: A reference coordinate system is constructed based on the detection image; wherein the x-axis of the reference coordinate system is perpendicular to the conveying direction of the target gypsum board 110, and the y-axis of the reference coordinate system is parallel to the conveying direction of the target gypsum board 110; Based on the reference coordinate system, the coordinates of the peak position are a(x1, y1), and the coordinates of the valley position are b(x2, y2); The first distance L1 and the second distance L2 are obtained, L1 = |y1-y2|, L2 = |x1-x2|.

[0039] In the embodiment, the reference coordinate system is established (the reference coordinate system can take the starting point of the wavy side edge 111 as the origin), so that the coordinates of the peak position a(x1, y1) and the coordinates of the valley position b(x2, y2) are accurately obtained, and the first distance L1 and the second distance L2 are accurately and quickly calculated.

[0040] Embodiment 2 Based on the same inventive idea as the foregoing embodiments, the embodiment also provides a paper-faced gypsum board edge sealing control device, including: An image acquisition module is configured to acquire a detection image of a target gypsum board 110, and identify a wavy side edge 111 profile to be edge sealed in the target gypsum board 110 according to the detection image; An image recognition module is configured to identify a peak position and a valley position in the wavy side edge 111 profile; An image data processing module is configured to obtain a first distance and a second distance between the peak position and the valley position; wherein the first distance is a vertical distance between the peak position and the valley position along a direction horizontal to the conveying direction of the target gypsum board 110, and the second distance is a vertical distance between the peak position and the valley position along a direction vertical to the conveying direction of the target gypsum board 110; A parameter acquisition module is configured to acquire a conveying speed of the target gypsum board 110; The parameter calculation module is configured to input the conveying speed, the first interval and the second interval into a preset first correlation model to obtain a theoretical average moving speed of the roller pressing mechanism 120. The roller pressing mechanism 120 is configured to press the edge strip 130 to the wavy side edge 111 of the target gypsum board 110. The roller pressing mechanism 120 is movable to approach or move away from the target gypsum board 110. The moving direction of the roller pressing mechanism 120 is perpendicular to the conveying direction of the target gypsum board 110. The related explanations and examples of the modules in the device of the embodiment can refer to the method of the foregoing embodiment, which will not be described here.

[0041] Embodiment 3 Based on the same inventive concept as the foregoing embodiments, the embodiment provides a computer device, which comprises a memory and a processor. The memory stores a computer program. The processor executes the computer program to implement the method described above.

[0042] Embodiment 4 Based on the same inventive concept as the foregoing embodiments, the embodiment provides a computer readable storage medium, which stores a computer program. The processor executes the computer program to implement the method described above.

[0043] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent flow transformation, or direct or indirect application in other related technical fields, which is based on the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A method for controlling edge sealing of gypsum board, characterized in that: The following steps are involved: Acquire a detection image of a target gypsum board, and identify the wavy side edge contour of the target gypsum board to be sealed based on the detection image; Identify the peaks and troughs in the wavy side profile; Obtaining a first spacing and a second spacing between a crest position and a trough position; wherein the first spacing is the vertical spacing between the crest position and the trough position along a conveying direction horizontal to the target gypsum board, and the second spacing is the vertical spacing between the crest position and the trough position along a conveying direction perpendicular to the target gypsum board; Obtaining the target gypsum board conveying speed; The conveying speed, the first spacing, and the second spacing are input into a preset first correlation model to obtain a theoretical average moving speed of the rolling mechanism; wherein the rolling mechanism is used to press the edge banding strip onto the wavy side of the target gypsum board, the rolling mechanism can move closer to or away from the target gypsum board, and the moving direction of the rolling mechanism is perpendicular to the conveying direction of the target gypsum board.

2. A method for controlling edge sealing of gypsum board according to claim 1, characterized in that: The expression of the first association model is: L1 / Vm=L2 / Vn; Where L1 is the first spacing, L2 is the second spacing, Vm is the conveying speed of the target gypsum board, and Vn is the theoretical average moving speed of the roller pressing mechanism.

3. A method for controlling edge sealing of gypsum board according to claim 2, characterized in that: After obtaining the theoretical average moving speed of the roller pressing mechanism, it also includes: According to the theoretical average moving speed, the forward or backward speed of the roller pressing mechanism is controlled to guide the roller pressing mechanism to press the edge banding strip onto the wavy side of the target gypsum board; Obtaining the real-time squeezing force when the roller pressing mechanism presses the edge banding strip against the wavy side of the target gypsum board; The real-time extrusion force is input into the preset second correlation model to obtain the instantaneous moving speed of the rolling mechanism at the current position.

4. A method for controlling edge sealing of gypsum board according to claim 3, characterized in that: When the rolling mechanism moves relatively from the crest position to the trough position, the expression of the second correlation model is: V=K1 / P; When the rolling mechanism moves relatively from the trough position to the peak position, the expression of the second correlation model is: V=K2*P; Where V is the instantaneous moving speed of the roller pressing mechanism at the current position, P is the real-time extrusion pressure, K1 is the first correlation coefficient, and K2 is the second correlation coefficient.

5. A method for controlling edge sealing of gypsum board according to claim 3 or 4, characterized in that: After inputting the real-time extrusion force into the preset second correlation model to obtain the instantaneous moving speed of the rolling mechanism at the current position, the method further includes: Get the instantaneous moving speed of the rolling mechanism at different times when it completes a moving cycle T, and record it as V1, V2, V3..., V S ; Wherein, the movement period T is the time for the rolling mechanism to complete one forward stroke or backward stroke, and S is the number of samples of the instantaneous movement speed; According to multiple instantaneous moving speeds, the actual average moving speed V' of the rolling mechanism to complete a moving cycle T is obtained, V'=(V1+V2+V3+...+V S ) / S; Compare the actual average moving speed V' with the theoretical average moving speed Vn, and obtain a comparison difference; According to the comparison difference, the instantaneous moving speed of the rolling mechanism at the corresponding position in the next moving cycle T is corrected.

6. A method for controlling edge sealing of gypsum board according to claim 3, characterized in that: The rolling mechanism includes a pressing roller, the side of the pressing roller away from the target gypsum board is movably connected to a connecting frame, the other end of the connecting frame is connected to a sleeve, a pressure sensor fixed to the side wall of the connecting frame is provided in the sleeve, the pressure sensor is connected to a spring located in the sleeve, the spring is connected to a telescopic cylinder, the cylinder barrel of the telescopic cylinder is located outside the sleeve; Acquire the real-time squeezing force when the roller presses the edge banding strip against the wavy side of the target gypsum board, including: Obtain pressure data from pressure sensors in real time; The pressure data is output as the real-time squeezing force when the roller pressing mechanism presses the edge banding strip against the wavy side of the target gypsum board.

7. The method for controlling edge sealing of gypsum board according to claim 1, wherein: Obtaining a first distance and a second distance between a peak position and a trough position, including: A reference coordinate system is constructed based on the detection image; wherein the x-axis of the reference coordinate system is perpendicular to the conveying direction of the target gypsum board, and the y-axis of the reference coordinate system is parallel to the conveying direction of the target gypsum board; Based on the reference coordinate system, the coordinates of the peak position are obtained as a (x1, y1) and the coordinates of the trough position are obtained as b (x2, y2); Obtain a first distance L1 and a second distance L2, where L1 = |y1-y2| and L2 = |x1-x2|.

8. A gypsum board edge sealing control device, characterized in that: include: An image acquisition module is used to acquire a detection image of a target gypsum board and identify the wavy side edge contour to be sealed in the target gypsum board based on the detection image; An image recognition module for identifying the peak positions and trough positions in the wavy side profile; an image data processing module, configured to obtain a first spacing and a second spacing between a wave crest position and a wave trough position; wherein the first spacing is a vertical spacing between the wave crest position and the wave trough position along a conveying direction horizontal to the target gypsum board, and the second spacing is a vertical spacing between the wave crest position and the wave trough position along a conveying direction perpendicular to the target gypsum board; A parameter acquisition module is used to obtain the conveying speed of the target gypsum board; A parameter calculation module is used to input the conveying speed, the first spacing and the second spacing into a preset first correlation model to obtain a theoretical average moving speed of the rolling mechanism; wherein the rolling mechanism is used to press the edge banding strip onto the wavy side of the target gypsum board, the rolling mechanism can move closer to or away from the target gypsum board, and the moving direction of the rolling mechanism is perpendicular to the conveying direction of the target gypsum board.

9. A computer device, characterized in that: The computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement a gypsum board edge sealing control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and the processor executes the computer program to implement a gypsum board edge sealing control method according to any one of claims 1 to 7.

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