A conveying device with optical detection for corrugated paper production and a process thereof

Abstract

The application belongs to the technical field of corrugated paper production device, and discloses a conveying device with optical detection for corrugated paper production, which comprises a main body frame, a fixing plate is arranged in the main body frame, a CCD camera is fixed on the bottom surface of the fixing plate, and a turning-over assembly and a detection assembly are further included. The turning-over assembly is precisely connected with the corrugated paper on the first conveying belt through the guide frame, then under the driving of the rotating motor, the corrugated paper is turned over by a certain angle, and then falls onto the second conveying belt, so that the corrugated paper is quickly turned over. The design makes the corrugated paper change a path to be conveyed back while being turned over, so that the front and back surfaces of the corrugated paper can be detected at the same time, the conveying length of the device in the plane is shortened, the floor space of the device is reduced, and the device can be used in different environments.

Description

Technical Field

[0001] This invention belongs to the technical field of corrugated paper production equipment, specifically a conveying device and process for corrugated paper production with optical detection. Background Technology

[0002] A conveyor system for corrugated paper production with optical inspection refers to an integrated production line system. Its core is an automated conveyor that transports corrugated paperboard (from the single facer to the double preheater, to the cross cutter, and then to the stacker). An optical imaging system (such as an industrial camera or laser scanner) and an image processing unit are installed on the automated conveyor equipment that transports the corrugated paperboard (from the single facer to the double preheater, to the cross cutter, and then to the stacker). This system can perform online, real-time visual inspection of the moving corrugated paperboard and automatically identify and classify defects.

[0003] Conventional conveyor systems for corrugated paper production with optical detection require inspection of both sides of the corrugated paper during transport. The paper is flipped over after moving a certain distance within the system before continuing its inspection, resulting in an excessively long conveyor line, increasing the size of the system and requiring a significant amount of space. Furthermore, when inspecting corrugated paper of different thicknesses, the detection components need to be manually adjusted, reducing the inspection efficiency.

[0004] Therefore, a conveying device and its process for corrugated paper production with optical detection are proposed. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a conveying device for corrugated paper production with optical detection, comprising a main frame, an array of fixing plates arranged within the main frame, a CCD camera arrayed on the bottom surface of the fixing plates, a first drive shaft and a first driven shaft respectively arranged within the main frame, a first conveyor belt nested on the surface of the first drive shaft and the first driven shaft, a first conveyor motor fixed at one end of the first drive shaft, and a second drive shaft and a second driven shaft respectively arranged within the main frame, a second conveyor belt nested on the surface of the second drive shaft and the second driven shaft; It also includes a flipping assembly, which is disposed within the main frame for flipping and conveying corrugated paper; The detection component is disposed within the main frame for detecting the flatness of the corrugated paper, and the detection component extends through the front of the main frame.

[0006] In the above technical solution, preferably, the flipping assembly includes a rotating base, and the rotating base is movably connected to the main frame. A rotating motor is fixed on the surface of the main frame, and the output end of the rotating motor is fixedly connected to the rotating base.

[0007] In the above technical solution, preferably, the surface array of the rotating seat is fixed with a guide frame, the bottom surface of the guide frame is provided with a pressing groove, and the pressing groove penetrates the surface of the guide frame, and guide rails are fixed in an array between the guide frames.

[0008] In the above technical solution, preferably, the surface array of the rotating seat is provided with counterweights, and the counterweights are movably connected to the guide rail. The side of the counterweights is fixed with a pressing block, and the pressing block is movably connected to the pressing groove.

[0009] In the above technical solution, preferably, the pressing block is made of thermoplastic rubber, the rotating seat has a fixed mounting frame, and the mounting frame has a fixed vibrator.

[0010] In the above technical solution, preferably, the detection component includes a detection box, which extends through the front of the main frame. The inner side of the main frame is provided with an array of electrical slots, and the detection box is respectively engaged with the electrical slots. The bottom surface of the detection box is provided with a detection groove, and one end of the detection box is fixed with a pull ring.

[0011] In the above technical solution, preferably, the detection slot is provided with a mounting plate, and the mounting plate is axially symmetrical about the detection box. The mounting plate is rotatably connected to the detection slot. A laser emitter and a laser receiver are fixedly arrayed on the bottom surface of the mounting plate. An adjusting gear is fixed to one end of the mounting plate, and the adjusting gears mesh with each other. An adjusting motor is fixed inside the detection box, and the output end of the adjusting motor is fixedly connected to the adjusting gear.

[0012] In the above technical solution, preferably, support shafts are fixedly arranged in an array within the first conveyor belt and the second conveyor belt, and the support shafts are rotatably connected to the main frame. A support frame is fixed to the surface of the main frame, and a shaping cylinder is fixed to the surface of the support frame. A connecting bracket is fixed to the output end of the shaping cylinder, and the connecting bracket penetrates the surface of the main frame. A shaping plate is fixed to both ends of the connecting bracket. A fixed gear is provided at one end of the first drive shaft and the second drive shaft, and transmission gears are arranged in an array between the fixed gears, and the transmission gears mesh with the fixed gears.

[0013] A conveying process for corrugated paper production with optical detection includes the following steps: S1: Image acquisition. At a preset workstation, a CCD camera continuously takes pictures of the corrugated cardboard being conveyed to obtain high-definition images. S2: Real-time analysis, using image processing software to analyze the high-definition image and using pre-set algorithms and standards to determine defects; S3: Result judgment and output. The image processing software makes a judgment of "qualified" or "defective" based on the analysis results, and records the type, location and severity of the defect. S4: Instant execution. When a defect is detected, the system immediately sends a signal to the marking device. Through delay calculation, when the defective corrugated cardboard moves under the marker, the system controls the marker to move instantaneously and mark the edge of the corrugated cardboard.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention features a flipping assembly within its main frame. When the first conveyor belt on the upper layer of the main frame transports corrugated paper to the flipping assembly, the guide frame within the flipping assembly precisely aligns with the corrugated paper on the first conveyor belt. Then, driven by a rotary motor, the corrugated paper flips at a certain angle before falling onto the second conveyor belt from the guide frame, achieving rapid flipping of the corrugated paper. This design allows the corrugated paper to be transported back along a different path while being flipped, enabling both sides of the corrugated paper to be detected while shortening the conveying length of the device in a plane, reducing the space occupied by the device, and allowing it to be used in various environments.

[0015] The present invention includes a detection component in the main frame. The detection component can be quickly installed and disassembled from the main frame via an electrical groove, which facilitates the inspection and maintenance of the detection component. In the detection component, by adjusting the motor drive, the symmetrical mounting plates can be rotated at equal angles in opposite directions under the transmission of the adjusting gear, which facilitates the detection component to quickly detect corrugated paper of different thicknesses and improves the detection efficiency of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an overall sectional view of the present invention; Figure 3 This is an exploded view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the structure of the flipping component of the present invention; Figure 5 This is a cross-sectional view of the flipping component of the present invention; Figure 6 This is an exploded view of the structure of the flipping component of the present invention; Figure 7 This is a schematic diagram of the detection component of the present invention; Figure 8 This is a cross-sectional view of the detection component of the present invention; Figure 9 This is an exploded view of the detection component of the present invention; Figure 10 This is a process flow diagram of the present invention.

[0017] In the diagram: 1. Flipping assembly; 101. Rotary motor; 102. Guide frame; 103. Pressing groove; 104. Guide rail; 105. Counterweight; 106. Mounting frame; 107. Vibrator; 108. Pressing block; 109. Rotary seat; 2. Detection assembly; 201. Pull ring; 202. Detection box; 203. Adjusting motor; 204. Adjusting gear; 205. Detection groove; 206. Mounting plate; 207. Laser emitter; 208. 1. Optical receiver; 2. Fixed gear; 3. Main frame; 4. Shaping cylinder; 5. First conveyor motor; 6. Connecting bracket; 7. First drive shaft; 8. Second drive shaft; 9. First driven shaft; 10. Second driven shaft; 11. Fixed plate; 12. CCD camera; 13. Support shaft; 14. First conveyor belt; 15. Second conveyor belt; 16. Shaping plate; 17. Transmission gear; 18. Support frame; 19. Electrical tank; 20. Connecting bracket. Detailed Implementation

[0018] 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.

[0019] Example 1: like Figures 1 to 9 As shown, the present invention provides a conveying device for corrugated paper production with optical detection, including a main frame 4, a fixed plate 12 arrayed inside the main frame 4, a CCD camera 13 fixed in an array on the bottom surface of the fixed plate 12, a first drive shaft 8 and a first driven shaft 10 respectively provided inside the main frame 4, a first conveyor belt 15 nested on the surface of the first drive shaft 8 and the first driven shaft 10, a first conveyor motor 6 fixed at one end of the first drive shaft 8, a second drive shaft 9 and a second driven shaft 11 respectively provided inside the main frame 4, a second conveyor belt 16 nested on the surface of the second drive shaft 9 and the second driven shaft 11; it also includes a flipping assembly 1, which is disposed inside the main frame 4 for flipping and conveying the corrugated paper; and a detection assembly, which is disposed inside the main frame 4 for detecting the flatness of the corrugated paper, and the detection assembly penetrates through the front of the main frame 4; Specifically, in the flipping assembly 1, the guide frame 102 precisely connects with the corrugated paper on the first conveyor belt 15. Then, driven by the rotary motor 101, the corrugated paper will flip at a certain angle and fall onto the second conveyor belt 16, realizing the rapid flipping of the corrugated paper. This design allows the corrugated paper to be transported back along a different path while being flipped, so that both sides of the corrugated paper can be detected. At the same time, it can shorten the conveying length of the device in the plane, reduce the space occupied by the device, and make the device usable in different environments. The flipping assembly 1 includes a rotating base 109, which is movably connected to the main frame 4. A rotary motor 101 is fixed on the surface of the main frame 4, and the output end of the rotary motor 101 is fixedly connected to the rotating base 109. A guide frame 102 is fixedly arranged on the surface of the rotating base 109. A pressing groove 103 is opened on the bottom surface of the guide frame 102, and the pressing groove 103 penetrates the surface of the guide frame 102. Guide rails 104 are fixedly arranged between the guide frames 102. Specifically, in the flipping assembly 1, when the guide frame 102 on the surface of the rotating seat 109 is on the same horizontal plane as the top surface of the first conveyor belt 15, the first conveyor belt 15 will transport the corrugated paper to the guide frame 102, and then, driven by the rotary motor 101, the rotating seat 109 will rotate with the guide frame 102 and the corrugated paper. The surface of the rotating base 109 is provided with counterweights 105, and the counterweights 105 are movably connected to the guide rail 104. The side of the counterweights 105 is fixed with a pressing block 108, and the pressing block 108 is movably connected to the pressing groove 103. The pressing block 108 is made of rubber thermoplastic. The rotating base 109 is fixed with a mounting frame 106, and the mounting frame 106 is fixed with a vibrator 107. Specifically, during the rotation of the rotating seat 109, due to gravity, the counterweight 105 will carry the pressing block 108 from the pressing groove 103 into the guide frame 102 to press the corrugated paper and prevent it from tilting during the conveying process. When the guide frame 102 rotates to the lowest point, under the action of the vibrator 107, the counterweight 105 will separate from the corrugated paper with the pressing block, and then under the action of gravity, the corrugated paper will turn over and fall onto the second conveyor belt 16.

[0020] The implementation principle of a conveying device for corrugated paper production with optical detection in Embodiment 1 of this application is as follows: In the flipping assembly 1, when the guide frame 102 on the surface of the rotating seat 109 is on the same horizontal plane as the top surface of the first conveyor belt 15, the first conveyor belt 15 will transport the corrugated paper to the guide frame 102. Then, driven by the rotary motor 101, the rotating seat 109 will rotate with the guide frame 102 and the corrugated paper. During the rotation of the rotating seat 109, due to the effect of gravity, the counterweight 105 will carry the pressing block 108 from the pressing groove 103 into the guide frame 102 to press the corrugated paper and prevent the corrugated paper from tilting during the conveying process. When the guide frame 102 rotates to the lowest point, under the action of the vibrator 107, the counterweight 105 will separate from the corrugated paper with the pressing block. Then, under the action of gravity, the corrugated paper will flip over and fall onto the second conveyor belt 16. In the flipping assembly 1, the guide frame 102 precisely aligns with the corrugated paper on the first conveyor belt 15. Then, driven by the rotary motor 101, the corrugated paper will flip at a certain angle and fall onto the second conveyor belt 16, achieving rapid flipping of the corrugated paper. This design allows the corrugated paper to be transported back along a different path while being flipped, enabling both sides of the corrugated paper to be detected while shortening the conveying length of the device in the plane, reducing the space occupied by the device, and allowing the device to be used in different environments.

[0021] Example 2: refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 The detection component 2 includes a detection box 202, which penetrates the front of the main frame 4. Electrical grooves 20 are arrayed on the inner side of the main frame 4, and the detection box 202 is engaged with the electrical grooves 20 respectively. A detection groove 205 is opened on the bottom surface of the detection box 202, and a pull ring 201 is fixed at one end of the detection box 202. Specifically, by pulling the pull ring 201, the test box 202 can be placed into the main frame 4, and then the electrical post on the side of the test box 202 can be electrically connected to the electrical groove 20. The detection slot 205 is provided with a mounting plate 206, and the mounting plate 206 is axially symmetrical about the detection box 202. The mounting plate 206 is rotatably connected to the detection slot 205. The bottom surface of the mounting plate 206 is fixed with a laser emitter 207 and a laser receiver 208. One end of the mounting plate 206 is fixed with an adjusting gear 204, and the adjusting gears 204 mesh with each other. The detection box 202 is fixed with an adjusting motor 203, and the output end of the adjusting motor 203 is fixedly connected to the adjusting gear 204. It should be noted that the laser emitter 207 and the laser receiver 208 are conventional detection devices and are existing technical solutions in this invention. Their working principles and methods will not be described in detail here. Specifically, in the detection component 2, by adjusting the drive of the motor 203, the symmetrical mounting plates 206 can be rotated at equal angles in opposite directions under the transmission of the adjusting gear 204, which facilitates the detection component 2 to quickly detect corrugated paper of different thicknesses and improves the detection efficiency of the device. Support shafts 14 are fixedly arranged in arrays within the first conveyor belt 15 and the second conveyor belt 16, and the support shafts 14 are rotatably connected to the main frame 4. A support frame 19 is fixedly arranged on the surface of the main frame 4, and a shaping cylinder 5 is fixedly arranged on the surface of the support frame 19. A connecting bracket 7 is fixedly arranged at the output end of the shaping cylinder 5, and the connecting bracket 7 penetrates the surface of the main frame 4. A shaping plate 17 is fixedly arranged at both ends of the connecting bracket 7. A fixed gear 3 is provided at one end of the first drive shaft 8 and the second drive shaft 9, and a transmission gear 18 is arranged in array between the fixed gears 3, and the transmission gear 18 meshes with the fixed gear 3. Specifically, driven by the shaping cylinder 5, the shaping plate 17 moves laterally within the main frame 4, which can adjust the corrugated paper, reduce the offset of the corrugated paper, and ensure the accuracy of the test data.

[0022] The implementation principle of the conveying device for corrugated paper production with optical detection in Embodiment 2 of this application is as follows: By pulling the pull ring 201, the detection box 202 can be placed into the main frame 4, and then the electrical column on the side of the detection box 202 can be electrically connected to the electrical groove 20; in the detection component 2, by adjusting the drive of the motor 203, the symmetrical mounting plates 206 can be rotated at equal angles in opposite directions under the transmission of the adjusting gear 204, which facilitates the detection component 2 to quickly detect corrugated paper of different thicknesses and improves the detection efficiency of the device; under the drive of the shaping cylinder 5, the shaping plate 17 moves laterally in the main frame 4, which can adjust the corrugated paper, reduce the offset of the corrugated paper, and ensure the accuracy of the detection data.

[0023] Example 3: Reference Figure 10 A transport process for corrugated paper production with optical detection includes the following steps: S1: Image acquisition. At the preset workstation, the CCD camera 13 continuously takes pictures of the corrugated cardboard being conveyed to obtain high-definition images. S2: Real-time analysis, using image processing software to analyze the high-definition image and using pre-set algorithms and standards to determine defects; Specifically: Real-time analysis is based on existing image libraries (such as OpenCV). Threshold segmentation and connected component analysis are performed on grayscale and filtered images to extract features such as the area and shape of defective regions. Finally, by comparing with a preset rule library (such as area > threshold, roundness < threshold), automatic classification and judgment of defects are achieved.

[0024] The above-mentioned defect determination using classic image processing algorithms (such as threshold segmentation and connected component analysis) and a preset rule base is an engineering integration application of existing technologies.

[0025] S3: Result judgment and output. The image processing software makes a judgment of "qualified" or "defective" based on the analysis results, and records the type, location and severity of the defect. Specifically: This step matches defect features using a pre-defined decision logic tree and outputs a "qualified / defective" status. For defects, the system generates a structured data object containing type encoding, physical coordinates (converted from encoder position), and feature values ​​(such as area), and records and outputs it through standard database operations (such as SQL write) or network communication (such as TCP Socket). The decision logic, data structure, and communication protocol used are all standard existing technologies in the software and automation fields.

[0026] S4: Instant execution. When a defect is detected, the system immediately sends a signal to the marking device. Through delay calculation, when the defective corrugated cardboard moves under the marker, the system controls the marker to move instantaneously and mark the edge of the corrugated cardboard.

[0027] This step involves real-time tracking of the cardboard position using an encoder. When a defect is identified, the system calculates a trigger delay based on the fixed distance between the marker and the camera, as well as the current belt speed. Once the delay is reached, the PLC or industrial computer sends a pulse signal to the marking device (such as an inkjet printer) via a digital I / O interface to drive its action. This position and speed tracking and delay triggering technology is a conventional automation control method and is existing technology.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying device for corrugated paper production with optical detection, comprising a main frame (4), wherein a fixing plate (12) is arranged in an array within the main frame (4), and a CCD camera (13) is fixed in an array on the bottom surface of the fixing plate (12), wherein a first drive shaft (8) and a first driven shaft (10) are respectively arranged within the main frame (4), and a first conveyor belt (15) is nested on the surface of the first drive shaft (8) and the first driven shaft (10), wherein a first conveyor motor (6) is fixed at one end of the first drive shaft (8), and a second drive shaft (9) and a second driven shaft (11) are respectively arranged within the main frame (4), and a second conveyor belt (16) is nested on the surface of the second drive shaft (9) and the second driven shaft (11); Its features are, Also includes: Flipping assembly (1), which is set inside the main frame (4) for flipping and conveying corrugated paper; The detection component (2) is set inside the main frame (4) for detecting the flatness of the corrugated paper, and the detection component (2) penetrates the front of the main frame (4); The flipping assembly (1) includes a rotating base (109), and the rotating base (109) is movably connected to the main frame (4). A rotary motor (101) is fixed on the surface of the main frame (4), and the output end of the rotary motor (101) is fixedly connected to the rotating base (109). The rotating seat (109) has a guide frame (102) fixed on its surface array. The bottom surface of the guide frame (102) has a pressing groove (103) that penetrates the surface of the guide frame (102). Guide rails (104) are fixed in an array between the guide frames (102). The surface array of the rotating seat (109) is provided with counterweights (105), and the counterweights (105) are movably connected to the guide rail (104). The side of the counterweights (105) is fixed with a pressing block (108), and the pressing block (108) is movably connected to the pressing groove (103). The detection component (2) includes a detection box (202), and the detection box (202) penetrates the front of the main frame (4). The inner side of the main frame (4) is provided with an electrical groove (20), and the detection box (202) is engaged with the electrical groove (20). The bottom surface of the detection box (202) is provided with a detection groove (205), and a pull ring (201) is fixed at one end of the detection box (202). The detection slot (205) is provided with a mounting plate (206), and the mounting plate (206) is axially symmetrical about the detection box (202). The mounting plate (206) is rotatably connected to the detection slot (205). The bottom surface of the mounting plate (206) is fixed with a laser emitter (207) and a laser receiver (208). One end of the mounting plate (206) is fixed with an adjusting gear (204), and the adjusting gears (204) mesh with each other. The detection box (202) is fixed with an adjusting motor (203), and the output end of the adjusting motor (203) is fixedly connected to the adjusting gear (204).

2. The conveying device for corrugated paper production with optical detection according to claim 1, characterized in that: The pressing block (108) is made of rubber thermoplastic, and the rotating seat (109) has a mounting frame (106) fixed inside, and the mounting frame (106) has a vibrator (107) fixed inside.

3. A conveying device for corrugated paper production with optical detection according to claim 1, characterized in that: Support shafts (14) are fixed in arrays in the first conveyor belt (15) and the second conveyor belt (16), and the support shafts (14) are rotatably connected to the main frame (4). A support frame (19) is fixed on the surface of the main frame (4), and a shaping cylinder (5) is fixed on the surface of the support frame (19). A connecting bracket (7) is fixed at the output end of the shaping cylinder (5), and the connecting bracket (7) penetrates the surface of the main frame (4). A shaping plate (17) is fixed at both ends of the connecting bracket (7). A fixed gear (3) is provided at one end of the first drive shaft (8) and the second drive shaft (9), and a transmission gear (18) is arranged in array between the fixed gears (3), and the transmission gear (18) meshes with the fixed gear (3).

4. The process of the conveying device for corrugated paper production with optical detection according to any one of claims 1-3, characterized in that: Includes the following steps: S1: Image acquisition. At the preset workstation, the corrugated cardboard being conveyed is continuously photographed by a CCD camera (13) to obtain high-definition images. S2: Real-time analysis, using image processing software to analyze the high-definition image and using pre-set algorithms and standards to determine defects; S3: Result judgment and output. The image processing software makes a judgment of "qualified" or "defective" based on the analysis results, and records the type, location and severity of the defect. S4: Instant execution. When a defect is detected, the system immediately sends a signal to the marking device. Through delay calculation, when the defective corrugated cardboard moves under the marker, the system controls the marker to move instantaneously and mark the edge of the corrugated cardboard.

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