An automatic monitoring device and method for gypsum board

Abstract

The application discloses a kind of gypsum board automatic monitoring device and method, comprising: conveying roller way;Drive ring frame, conveying roller way passes through the middle part of drive ring frame;Image acquisition module is arranged at the top of conveying roller way, it is driven by the side of conveying roller way to and fro rotation under the drive of drive ring frame;First induction module is arranged at the front side of image acquisition module in the conveying direction of conveying roller way;Ink-jet solenoid valve is arranged at the top of conveying roller way and is located between image acquisition module and first induction module;Ink supply tank supplies ink for ink-jet solenoid valve;Second induction module is arranged at the rear side of ink-jet solenoid valve in the conveying direction of conveying roller way.The application automatically determines whether the appearance of gypsum board is qualified by image acquisition module, and is marked by ink-jet solenoid valve on the gypsum board with defective appearance to spray, reduce the difficulty and labor of subsequent selection, the whole monitoring process is high in degree of automation, improve the efficiency of subsequent selection.

Description

Technical Field

[0001] This invention relates to the field of gypsum board production technology, and specifically to an automatic monitoring device and method for gypsum board. Background Technology

[0002] During the production of gypsum board, it is inevitable that some defective products will be produced, such as sharp edges, beveled edges, surface ripples, paper surface pits, and printing stains. In order to prevent these defective products from entering the market, it is necessary to sort out these defective products in advance.

[0003] In existing technologies, the selection of these defective products is usually done manually. However, manual selection is labor-intensive and inefficient. Furthermore, visual selection is prone to errors and omissions. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic monitoring device and method for gypsum board, so as to solve the technical problems in the prior art where unqualified products in the gypsum board production process need to be manually selected, which is inefficient and prone to misjudgment.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] In one aspect of the present invention, an automatic monitoring device for gypsum board is provided, comprising:

[0007] Conveyor rollers, used for conveying gypsum board;

[0008] A drive ring frame, the conveyor rollers passing through the middle of the drive ring frame, and the drive ring frame being fixedly connected to the frame of the conveyor rollers;

[0009] An image acquisition module is located at the top of the conveyor roller conveyor and is used to acquire image data of the front and two vertical sides of the gypsum board. Driven by the drive ring frame, it rotates back and forth from one side to the other of the conveyor roller conveyor.

[0010] A first sensing module is disposed in front of the image acquisition module in the conveying direction of the conveying rollers. When the front end of the gypsum board passes the first sensing module, the conveying rollers stop, and the image acquisition module and the drive ring frame start.

[0011] An inkjet solenoid valve is disposed at the top of the conveyor roller and located between the image acquisition module and the first sensing module. The inkjet solenoid valve automatically opens when the image acquisition module determines that the gypsum board has a defect in appearance.

[0012] An ink supply tank is located on the side of the conveyor roller conveyor, and the inkjet solenoid valve is connected to the ink supply tank via an ink supply pipe.

[0013] The second sensing module is located behind the inkjet solenoid valve in the conveying direction of the conveyor rollers. When the rear end of the gypsum board passes the second sensing module, the inkjet solenoid valve automatically closes.

[0014] Furthermore, the drive ring frame includes a fixed ring, a bearing fixedly sleeved outside the fixed ring, a rotating ring fixedly sleeved outside the bearing, a gear ring fixedly sleeved outside the rotating ring, a gear disposed on the side of the gear ring and meshing with the gear ring, and a motor driving the gear to rotate. The conveyor roller passes through the middle of the fixed ring, and the fixed ring is fixedly connected to the two side frames of the conveyor roller through a first connecting rod. The image acquisition module is disposed on the side of the drive ring frame, and the image acquisition module is fixedly connected to the rotating ring through a second connecting rod.

[0015] Furthermore, an agitator shaft is vertically arranged in the inner cavity of the ink supply tank, and an agitator blade is provided at the bottom of the agitator shaft.

[0016] Furthermore, the top of the ink supply tank is provided with an air pressure regulating component for adjusting the internal air pressure.

[0017] Furthermore, the air pressure regulating component provides power for the rotation of the agitator shaft.

[0018] Furthermore, the air pressure regulating assembly includes a compressed air pipe, a first branch air pipe and a second branch air pipe connected to the end of the compressed air pipe, a regulating valve disposed in the middle of the compressed air pipe, a back pressure valve disposed in the middle of the first branch air pipe, a pipeline solenoid valve disposed in the middle of the second branch air pipe, and a pressure gauge disposed on the outer wall of the ink supply tank. A first impeller and a second impeller are sleeved on the agitator shaft from top to bottom. The first impeller is located outside the ink supply tank, and the second impeller is located inside the ink supply tank. The air outlet of the first branch air pipe corresponds to the position of the first impeller, and the air outlet of the second branch air pipe extends into the inner cavity of the ink supply tank and corresponds to the position of the second impeller.

[0019] Furthermore, the ink supply tank includes a tank body and a top cover, and a sealing strip is provided at the joint between the tank body and the top cover.

[0020] Furthermore, both the first sensing module and the second sensing module are photoelectric sensors or radar sensors.

[0021] In another aspect of the present invention, an automatic monitoring method for gypsum board is provided, applied to the aforementioned automatic monitoring device for gypsum board, comprising the following steps:

[0022] Step S100: Conveying roller conveyor conveys gypsum board;

[0023] Step S200: The first sensing module senses the gypsum board and transmits the data to the PLC control module. The PLC control module controls the conveyor roller to stop and simultaneously controls the image acquisition module and drive ring frame to start. The image acquisition module takes pictures and acquires image data, and the drive ring frame drives the image acquisition module to rotate from one side of the conveyor roller to the other side of the conveyor roller.

[0024] Step S300: The PLC control module acquires the image data transmitted by the image acquisition module and analyzes and judges it. If the PLC control module determines that the appearance of the gypsum board is defective, the PLC control module controls the conveyor roller to restart and controls the inkjet solenoid valve to open. If the PLC control module determines that the appearance of the gypsum board is not defective, after the predetermined time when the image acquisition module rotates from one side of the conveyor roller to the other side of the conveyor roller, the PLC control module controls the conveyor roller to restart.

[0025] Step S400: After the inkjet solenoid valve is started, when the second sensing module does not detect the gypsum board, the PLC control module controls the inkjet solenoid valve to close.

[0026] Step S500: The first sensing module senses the plasterboard again and transmits the data to the PLC control module. The PLC control module controls the conveyor roller to stop and the image acquisition module to start. At the same time, the PLC control module drives the image acquisition module to rotate in the opposite direction through the drive ring frame.

[0027] Step S600: Repeat steps S300 to S500;

[0028] Step S700: Repeat steps S300 to S600.

[0029] This invention automatically determines whether the appearance of gypsum board is qualified through an image acquisition module, and automatically marks the gypsum board with appearance defects by spraying ink on the gypsum board through an inkjet solenoid valve, thereby marking unqualified gypsum board in advance, reducing the difficulty and workload of subsequent selection. The entire monitoring process is highly automated and improves the efficiency of subsequent selection of unqualified gypsum board. Attached Figure Description

[0030] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the automatic gypsum board monitoring device in this invention;

[0032] Figure 2 This is a schematic diagram of the drive ring frame structure in this invention;

[0033] Figure 3 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0034] Figure 4 This is a cross-sectional view of the ink supply can in this invention;

[0035] Figure 5 This is a schematic diagram of the air pressure regulating component in this invention.

[0036] The labels in the diagram represent the following:

[0037] 1-Conveyor roller; 2-Drive ring frame; 3-Image acquisition module; 4-First sensing module; 5-Inkjet solenoid valve; 6-Ink supply tank; 7-Second sensing module; 8-Agitator shaft; 9-Air pressure regulating component;

[0038] 21-Fixed ring; 22-Bearing; 23-Rotating ring; 24-Gear ring; 25-Gear; 26-Motor; 27-First connecting rod; 28-Second connecting rod; 51-Ink supply pipe; 61-Tank body; 62-Top cover; 63-Sealing strip; 81-Agitator blade; 82-First impeller; 83-Second impeller; 91-Compressed air pipe; 92-First branch air pipe; 93-Second branch air pipe; 94-Regulating valve; 95-Back pressure valve; 96-Pipeline solenoid valve; 97-Pressure gauge. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] like Figure 1 As shown, the present invention provides an automatic monitoring device for gypsum board, comprising:

[0041] Conveying roller conveyor 1, which is used to convey gypsum board;

[0042] The drive ring frame 2 and the conveyor roller 1 pass through the middle of the drive ring frame 2, and the drive ring frame 2 and the frame of the conveyor roller 1 are fixedly connected.

[0043] Image acquisition module 3 is set on top of conveyor roller 1 and is used to acquire image data of the front and two vertical sides of the gypsum board. It rotates back and forth from one side to the other under the drive of drive ring frame 2.

[0044] The first sensing module 4 is located in front of the image acquisition module 3 in the conveying direction of the conveying roller 1. When the front end of the gypsum board passes the first sensing module 4, the conveying roller 1 stops, and the image acquisition module 3 and the drive ring frame 2 start.

[0045] The inkjet solenoid valve 5 is located at the top of the conveyor roller 1 and between the image acquisition module 3 and the first sensing module 4. The inkjet solenoid valve 5 automatically opens when the image acquisition module 3 determines that the gypsum board has a defect in appearance.

[0046] The ink supply tank 6 is located on the side of the conveyor roller 1, and the inkjet solenoid valve 5 is connected to the ink supply tank 6 through the ink supply pipe 51.

[0047] The second sensing module 7 is located behind the inkjet solenoid valve 5 in the conveying direction of the conveyor roller 1. When the rear end of the gypsum board passes the second sensing module 7, the inkjet solenoid valve 5 automatically closes.

[0048] In this embodiment, the image acquisition module 3, driven by the drive ring frame 2, rotates back and forth from one side to the other on the conveyor roller 1. Thus, a set of image acquisition modules 3 can acquire image data of the front and both vertical edges of the gypsum board. The image acquisition module 3 is prior art and is not described in detail in this application. It includes a high-definition camera and a PLC control module. The high-definition camera can be a CCD camera or a CMOS camera. The high-definition camera transmits the acquired image data to the PLC control module, which determines whether there are defects in the appearance of the gypsum board. When the PLC control module determines that there are defects in the appearance of the gypsum board, the inkjet solenoid valve 5, driven by the PLC control module, automatically... The system automatically opens and sprays an ink strip onto the surface of the gypsum board, marking unqualified gypsum boards in advance. This reduces the difficulty and workload of subsequent selection. The entire monitoring process is highly automated, improving the efficiency of subsequent selection of unqualified gypsum boards and reducing the labor intensity of workers. In this application, the drive ring frame 2, image acquisition module 3, first sensing module 4, inkjet solenoid valve 5, and second sensing module 7 are all electrically connected to the PLC control module. The PLC control module is prior art, and the connection and control principle between it and the high-definition camera, inkjet solenoid valve 5, first sensing module 4, and second sensing module 7 are common knowledge to those skilled in the art. Therefore, it is not described in detail in this application.

[0049] In one optional implementation, a specific structure for the drive ring frame 2 is provided, as follows: Figure 2 and Figure 3As shown: The drive ring frame 2 includes a fixed ring 21, a bearing 22 fixedly sleeved outside the fixed ring 21, a rotating ring 23 fixedly sleeved outside the bearing 22, a gear ring 24 fixedly sleeved outside the rotating ring 23, a gear 25 disposed on the side of the gear ring 24 and meshing with the gear ring 24, and a motor 26 driving the gear 25 to rotate. The conveyor roller 1 passes through the middle of the fixed ring 21. The fixed ring 21 and the two side frames of the conveyor roller 1 are fixedly connected by a first connecting rod 27. The image acquisition module 3 is disposed on the side of the drive ring frame 2, and the image acquisition module 3 is fixedly connected to the rotating ring 23 by a second connecting rod 28.

[0050] In this embodiment, the motor 26 rotates forward and backward under the drive of the PLC control module, and drives the rotating ring 23 to rotate forward and backward through the meshing transmission between the gear 25 and the gear ring 24. Thus, the image acquisition module 3 rotates back and forth from one side of the conveyor roller 1 to the other side under the drive of the drive ring frame 2.

[0051] To prevent ink from settling in the ink supply tank 6 and affecting the inkjet operation of the inkjet solenoid valve 5, such as... Figure 4 As shown, an agitator shaft 8 is vertically arranged in the inner cavity of the ink supply tank 6, and an agitator blade 81 is arranged at the bottom of the agitator shaft 8.

[0052] The rotation of the agitator shaft 8 drives the agitator blade 81 to rotate, thereby agitating the ink in the ink supply tank 6, preventing ink sedimentation, and allowing the inkjet solenoid valve 5 to dispense ink more effectively and avoid clogging.

[0053] In order to regulate the air pressure inside the ink supply tank 6, thereby enabling the inkjet solenoid valve 5 to dispense ink more effectively, such as... Figure 1 As shown, the top of the ink supply tank 6 is equipped with an air pressure regulating component 9 for adjusting the internal air pressure.

[0054] In order to drive the agitator shaft 8 to rotate while adjusting the air pressure in the ink supply tank 6, thereby achieving the purpose of energy saving and consumption reduction, the air pressure regulating component 9 provides power for the rotation of the agitator shaft 8.

[0055] Specifically, such as Figure 4 and Figure 5As shown, the air pressure regulating assembly 9 includes a compressed air pipe 91, a first branch air pipe 92 and a second branch air pipe 93 connected to the end of the compressed air pipe 91, a regulating valve 94 located in the middle of the compressed air pipe 9, a back pressure valve 95 located in the middle of the first branch air pipe 92, a pipeline solenoid valve 96 located in the middle of the second branch air pipe 93, and a pressure gauge 97 located on the outer wall of the ink supply tank 6. A first impeller 82 and a second impeller 83 are mounted on the agitator shaft 8 from top to bottom. The first impeller 82 is located outside the ink supply tank 6, and the second impeller 83 is located inside the ink supply tank 6. The air outlet of the first branch air pipe 92 corresponds to the position of the first impeller 82. The first branch air pipe 92 can blow air towards the first impeller 82, thereby driving the agitator shaft 8 to rotate. The air outlet of the second branch air pipe 93 extends into the inner cavity of the ink supply tank 6 and corresponds to the position of the second impeller 83. The second branch air pipe 93 can blow air towards the second impeller 83, thereby driving the agitator shaft 8 to rotate.

[0056] During specific adjustment, the pipeline solenoid valve 96 is opened, and the compressed air pipe 91, under the adjustment of the regulating valve 94 (pressure controlled at 0.2MPa), blows air from the second branch air pipe 93 into the second impeller 83 in the ink supply tank 6, driving the second impeller 83 to rotate. The rotation of the second impeller 83 drives the agitator shaft 8 and the agitator blade 81 to rotate, agitating the ink in the ink supply tank 6. This can prevent the ink in the ink supply tank 6 from settling and crystallizing. Its main purpose is to facilitate the opening of the inkjet solenoid valve 5 and prevent the inkjet solenoid valve 5 from sticking. When the compressed air in the ink supply tank 6 reaches 0. When the pressure reaches 2MPa, that is, when the pressure value displayed by the pressure gauge 97 on the outside of the tank reaches 0.2MPa, the pipeline solenoid valve 5 closes. At the same time, the air pressure in the compressed air pipe 9 increases instantaneously, and the back pressure valve 95 on the first branch air pipe 92 opens. At this time, compressed gas is blown from the first branch air pipe 92 towards the first impeller 82 outside the ink supply tank 6, driving the first impeller 82 to rotate. The rotation of the first impeller 82 drives the stirring shaft 8 and the stirring blade 81 to rotate, stirring the ink in the ink supply tank 6, which can prevent the ink in the ink supply tank 6 from settling and crystallizing.

[0057] To facilitate later cleaning and inspection of the agitator shaft 8, agitator blades 81, and second impeller 83 inside the ink supply tank 6, such as... Figure 4 As shown, the ink supply can 6 includes a can body 61 and a top cover 62, and a sealing strip 63 is provided at the joint between the can body 61 and the top cover 62.

[0058] In order to accurately sense the position of the plasterboard and generate corresponding actions, both the first sensing module 4 and the second sensing module 7 are photoelectric sensors or radar sensors.

[0059] The following describes an automatic gypsum board monitoring method based on the aforementioned automatic gypsum board monitoring device, comprising the following steps:

[0060] Step S100: Conveying roller conveyor conveys gypsum board;

[0061] Step S200: The first sensing module 4 senses the gypsum board and transmits the data to the PLC control module. At this time, the gypsum board has reached the monitoring area. The PLC control module controls the conveyor roller 1 to stop and simultaneously controls the image acquisition module 3 and the drive ring frame 2 to start. The image acquisition module 3 takes pictures to collect image data. The image acquisition module 3 can take one picture at each of the three positions on both sides and directly above the gypsum board, or it can take more pictures at more positions during the rotation to improve the accuracy of monitoring. The drive ring frame 2 drives the image acquisition module 3 to rotate from one side of the conveyor roller 1 to the other side. The time taken for the image acquisition module 3 to rotate from one side of the conveyor roller 1 to the other side is set in advance in the PLC control module.

[0062] Step S300: The PLC control module acquires the image data transmitted by the image acquisition module 3 and performs analysis and judgment. If the PLC control module determines that the appearance of the gypsum board is defective, the PLC control module controls the conveyor roller 1 to restart and simultaneously controls the inkjet solenoid valve 5 to open. If the PLC control module determines that the appearance of the gypsum board is not defective, after the predetermined time when the image acquisition module 3 rotates from one side of the conveyor roller 1 to the other side of the conveyor roller 1 is reached, the PLC control module controls the conveyor roller 1 to restart.

[0063] Step S400: After the inkjet solenoid valve 5 is started, when the second sensing module 7 does not sense the gypsum board, the rear end of the gypsum board is controlled by the second sensing module 7 and the PLC control module to close the inkjet solenoid valve 5 to prevent ink from spraying onto the outside of the gypsum board and causing pollution.

[0064] Step S500: The first sensing module 4 senses the gypsum board again and transmits the data to the PLC control module. The PLC control module controls the conveyor roller 1 to stop and the image acquisition module 3 to start. At the same time, the PLC control module drives the image acquisition module 3 to rotate in the opposite direction through the drive ring frame 2.

[0065] Step S600: Repeat steps S300 to S500;

[0066] Step S700: Repeat steps S300 to S600.

[0067] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An automatic monitoring device for gypsum board, characterized in that, include: Conveying roller conveyor (1), which is used to convey gypsum board; A drive ring frame (2) is provided, the conveyor roller (1) passes through the middle of the drive ring frame (2), and the drive ring frame (2) is fixedly connected to the frame of the conveyor roller (1); The image acquisition module (3) is located on the top of the conveyor roller (1) and is used to acquire image data of the front and two vertical sides of the gypsum board. Under the drive of the drive ring frame (2), it rotates back and forth from one side to the other side of the conveyor roller (1). The first sensing module (4) is arranged in front of the image acquisition module (3) in the conveying direction of the conveying roller (1). When the front end of the gypsum board passes the first sensing module (4), the conveying roller (1) stops, and the image acquisition module (3) and the drive ring frame (2) start. The inkjet solenoid valve (5) is located at the top of the conveyor roller (1) and between the image acquisition module (3) and the first sensing module (4). The inkjet solenoid valve (5) automatically opens when the image acquisition module (3) determines that the gypsum board has a defect in appearance. The ink supply tank (6) is located on the side of the conveyor roller (1), and the inkjet solenoid valve (5) is connected to the ink supply tank (6) via an ink supply pipe (51). The second sensing module (7) is arranged on the rear side of the inkjet solenoid valve (5) in the conveying direction of the conveying roller (1). When the rear end of the gypsum board passes through the second sensing module (7), the inkjet solenoid valve (5) automatically closes. An agitator shaft (8) is vertically arranged in the inner cavity of the ink supply tank (6), and an agitator blade (81) is arranged at the bottom of the agitator shaft (8). The top of the ink supply tank (6) is provided with an air pressure regulating component (9) for regulating the internal air pressure. The air pressure regulating component (9) provides power for the rotation of the agitator shaft (8); The air pressure regulating assembly (9) includes a compressed air pipe (91), a first branch air pipe (92) and a second branch air pipe (93) connected to the end of the compressed air pipe (91), a regulating valve (94) disposed in the middle of the compressed air pipe (91), a back pressure valve (95) disposed in the middle of the first branch air pipe (92), a pipeline solenoid valve (96) disposed in the middle of the second branch air pipe (93), and a pressure gauge (97) disposed on the outer wall of the ink supply tank (6). The agitator shaft (8) is fitted with a first impeller (82) and a second impeller (83) from top to bottom. The first impeller (82) is located outside the ink supply tank (6), and the second impeller (83) is located in the inner cavity of the ink supply tank (6). The air outlet of the first branch air pipe (92) corresponds to the position of the first impeller (82), and the air outlet of the second branch air pipe (93) extends into the inner cavity of the ink supply tank (6) and corresponds to the position of the second impeller (83).

2. The automatic monitoring device for gypsum board according to claim 1, characterized in that, The drive ring frame (2) includes a fixed ring (21), a bearing (22) fixedly sleeved outside the fixed ring (21), a rotating ring (23) fixedly sleeved outside the bearing (22), a gear ring (24) fixedly sleeved outside the rotating ring (23), a gear (25) disposed on the side of the gear ring (24) and meshing with the gear ring (24), and a motor (26) driving the gear (25) to rotate. The conveying roller (1) passes through the middle of the fixed ring (21). The fixed ring (21) is fixedly connected to the two side frames of the conveying roller (1) by a first connecting rod (27). The image acquisition module (3) is disposed on the side of the drive ring frame (2), and the image acquisition module (3) is fixedly connected to the rotating ring (23) by a second connecting rod (28).

3. The automatic monitoring device for gypsum board according to claim 1, characterized in that, The ink supply container (6) includes a container body (61) and a top cover (62), and a sealing strip (63) is provided at the joint between the container body (61) and the top cover (62).

4. The automatic monitoring device for gypsum board according to claim 1, characterized in that, Both the first sensing module (4) and the second sensing module (7) are photoelectric sensors or radar sensors.

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