Intelligent fool-proof plate machining system and method and computer program product

Abstract

The invention discloses an intelligent fool-proof plate machining system and method and a computer program product. The system comprises a code scanner, an edge sealing machine, a conveying line sequentially passing through the code scanner and the edge sealing machine and a PLC connecting the code scanner, the edge sealing machine and the conveying line, the conveying line comprises a before-sealing line section located in front of the edge sealing machine, the code scanner is located above the before-sealing line section, a width measuring device connected with the PLC is arranged at the position of the before-sealing line section, and the width measuring device is connected with the PLC. In the process that the plate is sent to the edge sealing machine through the pre-sealing line section, the code scanner scans a label code on the plate to obtain size information of the plate and sends the size information to the PLC, the width measuring device measures the width information of the plate and sends the width information to the PLC, the PLC compares whether the measured width information of the plate conforms to the size information of the plate from the code scanner or not, and if yes, the edge sealing machine is started. If yes, the conveying line normally conveys the plate to the edge sealing machine and controls the edge sealing machine to conduct edge sealing on the plate, otherwise, it is considered that the label code of the plate is wrong, and the conveying line stops conveying the plate. The labeling device can prevent subsequent processing procedure errors caused by labeling errors.

Description

Technical Field

[0001] This invention relates to the field of panel furniture manufacturing technology, and in particular to a smart, error-proof panel processing system, method, and computer program product. Background Technology

[0002] Panel furniture is typically assembled from multiple panels. These panels require sequential processing, including cutting, edge banding, and drilling. Specifically, operators feed raw materials into a cutting machine to obtain the corresponding panels. The cut panels are then conveyed to a labeling machine to affix QR codes. These QR codes contain the panel's processing information (including dimensions and hole layout). The panels then continue to the edge banding machine, where a barcode scanner scans the QR codes to obtain the panel's dimensions. The edge banding machine then performs edge banding. Finally, the edge-banded panels are conveyed to a drilling machine, where they drill holes based on the processing information obtained from the barcode scanner. All of these processes—including the cutting machine, barcode scanner, edge banding machine, and drilling machine—are controlled by a PLC. Normally, the processing information linked to the QR code on the label affixed to the panel matches the panel itself. However, unforeseen circumstances, such as delays in data transmission of the QR code, can cause the panel entering the labeling station to not correspond to the QR code on the label to be affixed. This results in a discrepancy between the actual processing information of the panel and the processing information linked to its label QR code. Consequently, subsequent processing steps (edge ​​banding and drilling) will all encounter errors. Summary of the Invention

[0003] The technical problem to be solved by this invention is how to prevent errors in subsequent processing steps due to labeling errors in a sheet metal processing system.

[0004] To address the aforementioned technical problems, this invention provides an intelligent, error-proof panel processing system, comprising a barcode scanner and an edge banding machine, a conveyor line passing sequentially through the barcode scanner and the edge banding machine, and a PLC connecting the barcode scanner, the edge banding machine, and the conveyor line. The conveyor line includes a pre-sealing section located before the edge banding machine. The barcode scanner is positioned above and aligned downwards with the pre-sealing section. A width measuring device connected to the PLC is located at the pre-sealing section. During the process of the panel being conveyed from the pre-sealing section to the edge banding machine: the barcode scanner scans the label code on the panel to obtain the panel's size information and sends it to the PLC; the width measuring device measures the panel's width information and sends it to the PLC; the PLC compares the measured panel width information with the panel size information from the barcode scanner; if they match, the conveyor line is instructed to normally convey the panel to the edge banding machine and the edge banding machine is controlled to perform edge banding on the panel; otherwise, the panel label code is considered incorrect, and the conveyor line is instructed to stop conveying the panel.

[0005] Furthermore, the width measuring device includes a width measuring photoelectric sensor and an encoder connected to the PLC. The width measuring photoelectric sensor is aligned with the path of the sheet metal traveling on the pre-sealing line, and the encoder is located on the conveyor line to detect the conveying stroke. During the process of the sheet metal being sent from the pre-sealing line to the edge sealing machine: when the width measuring photoelectric sensor detects the sheet metal entering, it sends a sheet metal entering signal to the PLC; when it detects the sheet metal leaving, it sends a sheet metal leaving signal to the PLC. Using the sheet metal entering signal and the sheet metal leaving signal as sheet metal width information, the PLC calculates the sheet metal width based on the encoder count difference between the time the sheet metal entering signal is sent and the time the sheet metal leaving signal is sent.

[0006] Furthermore, the front end of the pre-sealing section is equipped with an input photoelectric sensor connected to the PLC. When the input photoelectric sensor detects the board, it sends an input signal to the PLC. During the movement of the board, the PLC determines the current position of the board in real time based on the sensing position of the input photoelectric sensor, the encoder count difference between the time the input signal was sent and the current time. If it is determined that the board has moved to the edge sealing station of the edge sealing machine, the PLC controls the edge sealing machine to seal the board.

[0007] Furthermore, the edge banding machine includes an edge banding module and a side drilling module arranged sequentially along the board conveying path. The information obtained by the barcode scanner from the label code on the board includes the hole information of the board. The PLC determines the drilling coordinates based on the size information and hole information obtained by the barcode scanner and sends them to the side drilling module. During the board movement, the PLC determines the current position of the board in real time based on the sensing position of the board entry photoelectric sensor, the difference between the encoder count at the time the board entry signal was sent and the current time. If it is determined that the board has moved to the edge banding station of the edge banding module, the edge banding module is controlled to perform edge banding on the board. Then, if it is determined that the board has moved to the drilling station of the side drilling module, the drilling module is controlled to perform drilling on the board.

[0008] This invention also provides a method for intelligently preventing mistakes in sheet metal processing, comprising the following steps: S1. Send the board to the edge banding machine. During this process, scan the board label code to obtain the board size information. S2. After the board arrives at the edge banding station of the edge banding machine, control the edge banding machine to band the edge of the board according to the board size information; In step S1, the actual width of the board is measured, and the measured width is compared with the board size information from the barcode scanner. If they match, the conveyor line is instructed to send the board to the edge banding machine normally. Otherwise, the board label code is considered to be incorrect, and the conveyor line is instructed to stop conveying the board.

[0009] The present invention also provides a computer program product, including a computer program that, when executed, implements the intelligent, error-proof board processing method described above.

[0010] The intelligent error-proof board processing system provided by this invention has a width measuring device at the pre-sealing line section. The PLC uses the width measuring device to detect the actual width of the board and compares it with the board size information from the barcode scanner to verify whether the board label code is incorrect. Once an error is found in the board label code, the conveyor line stops conveying the board to prevent errors in the subsequent edge sealing process. Attached Figure Description

[0011] Figure 1 This is an equipment layout diagram of a smart, foolproof sheet metal processing system.

[0012] Figure 2 This is a circuit block diagram of a smart, foolproof board processing system.

[0013] Figure 3 This is a simplified diagram of the conveyor line of a smart, foolproof sheet metal processing system. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to specific embodiments.

[0015] Intelligent, foolproof sheet metal processing systems, such as Figure 1 As shown, the system includes a barcode scanner 1 and an edge banding machine 2, and a roller conveyor line 10 that passes sequentially through the barcode scanner 1 and the edge banding machine 2. Figure 2 As shown, the system also includes a PLC connected to the barcode scanner 1, the edge banding machine 2, and the roller conveyor line 10. The PLC is equipped with a computer program, which includes a computer program that the PLC executes to implement its control functions. The roller conveyor line 10 includes a pre-sealing section 11 located before the edge banding machine 2. The barcode scanner 1 is positioned above the pre-sealing section 11, facing downwards and aligned with the scanning recognition area 110 on the pre-sealing section 11 (see...). Figure 3 The system includes a width-measuring photoelectric sensor 4 and an encoder 5 connected to the PLC. (For example...) Figure 3As shown, the width-measuring photoelectric sensor 4 is located on the side of the pre-sealing section 11, aligned with the path of the sheet metal traveling on the pre-sealing section 11. The encoder 5 is installed on the roller conveyor line 10 to detect the conveying stroke of the conveyor line. During the process of the sheet metal 100 being sent from the pre-sealing section 11 to the edge-sealing machine 2: the barcode scanner 1 scans the label code on the sheet metal 100 to obtain the size information of the sheet metal 100 and sends it to the PLC; the width-measuring photoelectric sensor 4 detects the sheet metal 100 entering and sends a sheet metal entry signal to the PLC, and then detects the sheet metal 100 leaving and sends a sheet metal departure signal to the PLC; using the sheet metal entry signal and the sheet metal departure signal as the sheet metal width information, the PLC calculates the width W of the sheet metal 100 based on the difference in the encoder 5 count between the time the sheet metal entry signal is sent and the time the sheet metal departure signal is sent. The PLC compares the measured width W of board 100 with the width in the board 100 dimension information from the barcode scanner. If they match, the roller conveyor 10 is instructed to normally send board 100 to the edge banding machine 2; otherwise, the label code of board 100 is considered incorrect, and the roller conveyor 10 is instructed to stop conveying board 100. In this embodiment, a width-measuring photoelectric sensor 4 and an encoder 5 are used as the width-measuring device to measure the width of the board. In other embodiments, the width-measuring device can be replaced with a laser width measuring instrument.

[0016] To detect the position of board 100 in real time, this embodiment has an entry photoelectric sensor 3 connected to the PLC at the front end of the pre-sealing line segment 11. When the entry photoelectric sensor 3 detects board 100, it means that board 100 has entered the sealing area, and it sends an entry signal to the PLC. During the movement of board 100, the PLC determines the current position of board 100 in real time based on the position sensed by the entry photoelectric sensor 3 and the difference in the encoder 5 count between the time the entry signal was sent and the current time. Compared with the traditional method of using multiple limit switches and time delay relays for detection, this embodiment uses one entry photoelectric sensor 3 and encoder 5 to detect the position of board 100. Position control is performed through high-speed pulse counting, which can accurately measure the position of board 100, improve the action accuracy of various stations such as trimming and finishing, simplify the mechanical structure, and reduce costs. This embodiment uses encoder 5 to not only measure the width of board but also detect the position of board, achieving two goals at once. In this embodiment, since the sealing section 11 is perpendicular to the rear section of the roller conveyor line 10, it is necessary to set the plate entry photoelectric sensor 3 and the width measurement photoelectric sensor 4 respectively. In other embodiments, the roller conveyor line 10 can be changed to be set along a straight line, and then the width measurement photoelectric sensor 4 can be removed, with the plate entry photoelectric sensor 3 serving as the width measurement photoelectric sensor.

[0017] The edge banding machine 2 includes an edge banding module 21 and a side drilling module 22 arranged sequentially along the board conveying path. Both the edge banding module 21 and the side drilling module 22 in this embodiment are existing technologies and will not be described in detail. The information obtained by the barcode scanner 1 from scanning the tag code on the board 100 also includes the hole arrangement information of the board 100. The PLC determines the drilling coordinates based on the size information and hole arrangement information obtained by the barcode scanner 1 and sends them to the side drilling module 22. During the board movement, the PLC determines the current position of the board 100 in real time based on the sensing position of the board entry photoelectric sensor 3, the difference between the encoder count at the time the board entry signal was sent and the current time. If it is determined that the board 100 has moved to the edge banding station of the edge banding module 21, the PLC controls the edge banding module 21 to perform edge banding on the board 100. After the edge sealing module 21 completes the edge sealing of the plate 100, the plate 100 continues to move forward by the roller conveyor 10. If the PLC determines that the plate 100 has moved to the drilling position of the side drilling module 22, it controls the drilling module 22 to drill the plate 100.

[0018] The intelligent error-proof board processing system provided in this embodiment is equipped with a width measuring photoelectric sensor 4 and an encoder 5 as width measuring devices. The PLC uses the width measuring photoelectric sensor 4 and encoder 5 to detect the actual width of the board and compare it with the board size information from the barcode scanner 1 to verify whether the board label code is incorrect. Once an error is found in the board label code, the conveyor line is stopped from conveying the board to prevent errors in the subsequent edge sealing process.

[0019] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A smart, foolproof panel processing system, comprising a barcode scanner (1) and an edge banding machine (2), including a conveyor line (10) passing sequentially through the barcode scanner (1) and the edge banding machine (2), including a PLC connecting the barcode scanner (1), the edge banding machine (2), and the conveyor line (10), the conveyor line (10) including a pre-sealing section (11) located before the edge banding machine (2), the barcode scanner (1) being positioned above and aligned downwards with the pre-sealing section (11), characterized in that, A width measuring device connected to the PLC is provided at the pre-sealing line segment (11). During the process of the board (100) being sent to the edge banding machine (2) via the pre-sealing line segment (11): the barcode scanner (1) scans the label code on the board to obtain the board size information and sends it to the PLC. The width measuring device measures the board width information and sends it to the PLC. The PLC compares whether the measured board width information matches the board size information from the barcode scanner. If they match, the conveyor line (10) is instructed to send the board to the edge banding machine (2) normally and the edge banding machine (2) is instructed to perform edge banding on the board. Otherwise, the label code of the board is considered to be incorrect, and the conveyor line (10) is instructed to stop conveying the board.

2. The intelligent error-proof sheet metal processing system as described in claim 1, characterized in that, the measurement... The width measuring device includes a width measuring photoelectric sensor (4) and an encoder (5) connected to the PLC. The width measuring photoelectric sensor (4) is aligned with the path of the board on the pre-sealing line segment (11), and the encoder (5) is installed on the conveyor line (10) to detect the conveying stroke of the conveyor line. During the process of the board being sent from the pre-sealing line segment (11) to the edge sealing machine (2): the width measuring photoelectric sensor (4) detects the board entering and sends a board entering signal to the PLC. Then, it detects the board leaving and sends a board leaving signal to the PLC. The board entering signal and the board leaving signal are used as the board width information. The PLC calculates the board width based on the encoder count difference between the time the board entering signal is sent and the time the board leaving signal is sent.

3. The intelligent error-proof sheet metal processing system as described in claim 2, characterized in that, The front end of the sealing line segment (11) is equipped with an input photoelectric sensor (3) connected to the PLC. When the input photoelectric sensor (3) detects the board, it sends an input signal to the PLC. During the movement of the board, the PLC determines the current position of the board in real time based on the sensing position of the input photoelectric sensor (3), the encoder count difference between the time the input signal is sent and the current time. If it is determined that the board has moved to the sealing station of the sealing machine (2), the PLC controls the sealing machine (2) to seal the board.

4. The intelligent error-proof sheet metal processing system as described in claim 3, characterized in that, The edge banding machine (2) includes an edge banding module (21) and a side drilling module (22) arranged sequentially along the board conveying path. The information obtained by the barcode scanner (1) scanning the label code on the board includes the hole information of the board. The PLC determines the drilling coordinates based on the size information and hole information obtained by the barcode scanner (1) and sends them to the side drilling module (22). During the board movement, the PLC determines the current position of the board in real time based on the sensing position of the board photoelectric sensor (3), the difference between the encoder count at the time of board signal transmission and the current time. If it is determined that the board has moved to the edge banding station of the edge banding module (21), the edge banding module (21) is controlled to perform edge banding on the board. Then, if it is determined that the board has moved to the drilling station of the side drilling module (22), the drilling module (22) is controlled to perform drilling on the board (100).

5. A method for intelligently preventing mistake-proof sheet metal processing, comprising the following steps: S1. Send the board to the edge banding machine. During this process, scan the board label code to obtain the board size information. S2. After the board arrives at the edge banding station of the edge banding machine, control the edge banding machine to band the edge of the board according to the board size information; The feature is that, in step S1, the actual width of the board is measured, and the measured width of the board is compared with the board size information from the barcode scanner. If they match, the conveyor line is instructed to send the board to the edge banding machine normally; otherwise, the board label code is considered to be incorrect, and the conveyor line is instructed to stop conveying the board.

6. A computer program product comprising a computer program, characterized in that, When the computer program is executed, it implements the intelligent, error-proof sheet metal processing method as described in claim 5.

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