A cigarette case tape edge warping detection device and method for a finished product conveyor line

Abstract

The present invention discloses a cigarette box tape edge warping detection device and method for a finished product conveyor line. When the roller conveyor starts to transport cigarette boxes, a reflective photoelectric detection switch serves as a trigger: when a rising edge signal appears in the reflective photoelectric detection switch, the opposed photoelectric detection switch is detected once at this time. If it is blocked, it indicates that the tape at the front of the cigarette box is warped, thereby realizing the detection of the tape edge warping at the front of the cigarette box; when a falling edge signal appears in the reflective photoelectric detection switch, the opposed photoelectric detection switch is detected once after a delay of 30 ms at this time; if it is blocked, it indicates that the tape at the rear of the cigarette box is warped, so that it can accurately detect whether there is tape edge warping at the front and rear of the cigarette box; and if a warped-edge cigarette box is found, an alarm will be issued and the roller conveyor will be stopped to enable the staff to handle it in time, thereby effectively preventing the cigarette boxes with warped tapes from entering the finished product line and ensuring the normal transportation and stacking of the finished cigarette boxes.

Description

Technical Field

[0001] The present invention relates to a cigarette box tape edge - warping detection device and method, specifically a cigarette box tape edge - warping detection device and method for a finished product conveyor line. Background Art

[0002] During the process of sealing cigarette boxes by a cartoning and sealing machine, there may be a phenomenon that the tape is not firmly pasted and forms an edge - warping. If the edge - warping is serious, when a cigarette box with edge - warping passes through a spiral elevator, due to the force of the inner cigarette cartons on the cigarette box, the tape is likely to fall off, resulting in the scattering of cigarette cartons. In addition, when stacking cigarette boxes in the finished product warehouse, the edge - warped tape is also likely to stick to the stacking robot, causing the tape to be torn apart and the cigarette cartons to scatter. When entering a roadway stacking crane, it will trigger an alarm fault for the appearance of the stacking crane. In addition, during the process of stacking cigarette boxes, the gap between cigarette boxes is extremely small, and the edge - warped tape is likely to cause the tapes of two cigarette boxes to stick together. Eventually, when the finished product is unstacked by a robot at the time of outbound, it will cause the scattering of cigarette cartons, resulting in a large waste and being unfavorable to the automation of the finished product line production. In order to reduce the occurrence of the above - mentioned situations, most of the existing technologies adopt a cigarette box detection device installed at the outlet of the cartoning and sealing machine. Its main detection principle is to detect the length of the cigarette box, and determine whether the sealing edge of the cigarette box is open by the change in the length of the cigarette box, so as to determine whether the tape for packaging seals the cigarette box qualified. Although this method can effectively detect un - sealed cigarette boxes, when the sealing edge of the cigarette box is sealed by the tape but the two sides of the tape show edge - warping, since the sealing edge of the cigarette box is not open (i.e., the length of the cigarette box does not change), the existing detection device cannot accurately detect the cigarette box with edge - warped tape. Therefore, it cannot fundamentally solve the problem of cigarette boxes with edge - warped tapes entering the finished product line. Summary of the Invention

[0003] Aiming at the problems existing in the above - mentioned prior art, the present invention provides a cigarette box tape edge - warping detection device and method for a finished product conveyor line, which can accurately detect the cigarette box with edge - warped tape and issue an alarm so that the staff can process it in time, thereby effectively preventing the cigarette box with edge - warped tape from entering the finished product line and ensuring the normal transportation and stacking of finished cigarette boxes.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A cigarette box tape edge - warping detection device for a finished product conveyor line, comprising a data processing device, an input and display device, a distributed IO module (remote acquisition and control module), a reset button, an audible and visual alarm, a roller conveyor, an opposed - type photoelectric detection switch, and a reflective photoelectric detection switch;

[0005] There are two opposed photoelectric detection switches, which are symmetrically arranged on both sides of the roller conveyor; the heights of the two opposed photoelectric detection switches are the same as the midpoint height of the tape of the cigarette case on the roller conveyor; the reflective photoelectric detection switch is fixed on one side of the roller conveyor 10 mm behind the opposed photoelectric detection switch, and the height of the reflective photoelectric detection switch is 40 mm lower than the lowest point of the tape of the cigarette case on the roller conveyor; when the opposed photoelectric detection switch is not blocked, the output is high level; when the reflective photoelectric detection switch is not blocked, the output is low level;

[0006] The roller conveyor is connected to the distributed IO module, and is used to receive the control signal transmitted by the distributed IO module to start or stop transporting the cigarette case;

[0007] The opposed photoelectric detection switch is connected to the distributed IO module, and is used to receive the detection instruction transmitted by the distributed IO module, and feedback the data to the distributed IO module after detection;

[0008] The reflective photoelectric detection switch is connected to the distributed IO module, and is used to receive the detection instruction transmitted by the distributed IO module, start real-time detection of whether a cigarette case passes by, and feedback the real-time detection level data to the distributed IO module;

[0009] The audible and visual alarm is connected to the distributed IO module, and is used to emit an audible and visual alarm or stop the audible and visual alarm after receiving the control signal transmitted by the distributed IO module;

[0010] The reset button is connected to the distributed IO module, and is used to send a reset signal to the distributed IO module to reset each module;

[0011] The distributed IO module is connected to the data processing device, and is used to collect the data fed back by each module and feed it back to the data processing device, and send the control signal sent by the data processing device to the corresponding module;

[0012] The data processing device is connected to the input and display device. The data processing device is used to receive the data fed back by the distributed IO module and the data input by the input and display device, analyze and process them, then send the corresponding control signal to the distributed IO module, and at the same time display the processing result through the input and display device.

[0013] Further, the data processing device is a finished product line PLC controller.

[0014] Further, the input and display device is a finished product line touch display screen.

[0015] A detection method for a cigarette case tape edge warping detection device for a finished product conveyor line, the specific steps are as follows:

[0016] A. System initialization, the entire device starts running, and the cigarette box enters the roller conveyor for transportation; the transportation speed of the roller conveyor is constantly 0.4 m / s.

[0017] B. If the data processing device does not receive the signal from the input and display device to start the detection of the warping of the cigarette box tape, the roller conveyor transports the cigarette box normally; if it receives the signal for detecting the warping of the cigarette box tape, it enters step C.

[0018] C. The data processing device issues a detection instruction, which is transmitted to the reflective photoelectric detection switch through the distributed IO module. The reflective photoelectric detection switch starts to detect in real time whether there is a cigarette box passing by, and feeds back the real-time level data to the data processing device through the distributed IO module; if the level data transmitted by the reflective photoelectric detection switch shows a rising edge signal, it means that the front part of the cigarette box reaches the position of the reflective photoelectric detection switch; at this time, the data processing device issues a detection instruction, which is transmitted to the through-beam photoelectric detection switch through the distributed IO module. The through-beam photoelectric detection switch conducts a detection and feeds back the level data after detection; the data processing device processes the level data fed back by the through-beam photoelectric detection switch. If the level fed back by the through-beam photoelectric detection switch is high level, it means that the front tape of the cigarette box has not warped, and the roller conveyor transports normally, entering step D; if the level fed back by the through-beam photoelectric detection switch is low level, it means that the front tape of the cigarette box has warped, and it enters step E.

[0019] D. When the level data transmitted by the reflective photoelectric detection switch shows a falling edge signal, it means that the rear part of the cigarette box reaches the position of the reflective photoelectric detection switch. The data processing device delays for 30 ms and issues a detection instruction, which is transmitted to the through-beam photoelectric detection switch through the distributed IO module (this can ensure that the rear part of the cigarette box moves beyond the through-beam photoelectric detection switch, and the exceeded distance is less than 10 mm). The through-beam photoelectric detection switch conducts a detection and feeds back the level data after detection; the data processing device processes the level data fed back by the through-beam photoelectric detection switch. If the level fed back by the through-beam photoelectric detection switch is high level, it means that the rear tape of the cigarette box has not warped, and the roller conveyor transports normally, entering step F; if the level fed back by the through-beam photoelectric detection switch is low level, it means that the rear tape of the cigarette box has warped, and it enters step E.

[0020] E. The data processing device displays the edge - warping fault through the input and display device. Meanwhile, it sends a control signal which is transmitted to the roller conveyor and the audible and visual alarm through the distributed IO module, stopping the transportation of the roller conveyor and making the audible and visual alarm give an audible and visual alarm respectively. After the staff discovers the problem and processes the cigarette case with tape edge - warping in time, by pressing the reset button, the reset signal is fed back to the data processing device. After processing, the data processing device sends a control signal to resume the transportation of the roller conveyor and stop the audible and visual alarm. Then it enters step F;

[0021] F. Complete the detection of the tape edge - warping of one cigarette case, and then loop and repeat steps B to E until the detection of the tape edge - warping of the required number of cigarette cases is completed, and then stop the entire detection device.

[0022] Compared with the prior art, the present invention combines a data processing device, an input and display device, a distributed IO module, a reset button, an audible and visual alarm, a roller conveyor, an opposed - type photoelectric detection switch and a reflective photoelectric detection switch. The opposed - type photoelectric detection switch and the reflective photoelectric detection switch are arranged on the roller conveyor. When the roller conveyor starts to transport the cigarette cases, the reflective photoelectric detection switch acts as a trigger. When a rising - edge signal appears on the reflective photoelectric detection switch, it indicates that the front part of the cigarette case reaches the position of the reflective photoelectric detection switch. At this time, the opposed - type photoelectric detection switch conducts a detection. Its detection principle is to detect whether it is blocked at this time. Since it is at the same height as the mid - point of the tape and the front part of the cigarette case has not reached the position of the opposed - type photoelectric detection switch, if the opposed - type photoelectric detection switch is blocked, it indicates that the tape at the front part of the cigarette case is edge - warped, thus realizing the detection of the tape edge - warping at the front part of the cigarette case. When a falling - edge signal appears on the reflective photoelectric detection switch, it indicates that the rear part of the cigarette case reaches the position of the reflective photoelectric detection switch. At this time, the opposed - type photoelectric detection switch is made to conduct a detection after a 30 - ms delay. During the delay process, the roller conveyor continues to drive the cigarette case forward at a set speed, so that the rear part of the cigarette case moves beyond the opposed - type photoelectric detection switch, and the exceeding distance is less than 10 mm, preventing the problem that the opposed - type photoelectric detection switch is blocked due to the rear part of the cigarette case not exceeding the opposed - type photoelectric detection switch during detection, resulting in false detection. At this time, if the opposed - type photoelectric detection switch is blocked, it indicates that the tape at the rear part of the cigarette case is edge - warped, thus accurately detecting whether there is tape edge - warping at the front and rear parts of the cigarette case. And if an edge - warped cigarette case is found, an alarm will be issued and the roller conveyor will be stopped, enabling the staff to process it in time, thus effectively preventing the cigarette cases with tape edge - warping from entering the finished product line and ensuring the normal transportation and stacking of the finished cigarette cases. Description of the Drawings

[0023] Figure 1 is the electrical principle block diagram of the detection device in the present invention;

[0024] Figure 2It is a schematic diagram of the installation position of the detection device in the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the cigarette box after being encapsulated with tape in the present invention;

[0026] Figure 4 It is a schematic diagram of detecting the tape at the front of the cigarette box during the use of the present invention;

[0027] Figure 5 It is a schematic diagram of detecting the tape at the rear of the cigarette box during the use of the present invention;

[0028] Figure 6 It is the overall flow chart of the present invention.

[0029] In the figure: 1. Through-beam photoelectric detection switch, 2. Retroreflective photoelectric detection switch, 3. Cigarette box, 4. Tape, 5. Roller conveyor. Specific embodiments

[0030] The present invention will be further described below.

[0031] The patent description is carried out with the transportation direction of the roller conveyor as the front, as Figures 1 to 3 shown, a cigarette box tape edge warping detection device for a finished product conveyor line includes a data processing device, an input and display device, a distributed IO module (remote acquisition and control module), a reset button, an audible and visual alarm, a roller conveyor 5, a through-beam photoelectric detection switch 1, and a retroreflective photoelectric detection switch 2;

[0032] There are two through-beam photoelectric detection switches 1, and the two through-beam photoelectric detection switches 1 are symmetrically arranged on both sides of the roller conveyor 5; the two through-beam photoelectric detection switches 1 are at the same height as the midpoint of the tape of the cigarette box 3 on the roller conveyor 5; the retroreflective photoelectric detection switch 2 is fixed on one side of the roller conveyor 5, 10 mm behind the through-beam photoelectric detection switch 1, and the height of the retroreflective photoelectric detection switch 2 is 40 mm lower than the lowest point of the tape of the cigarette box 3 on the roller conveyor 5; when the through-beam photoelectric detection switch 1 is not blocked, the output is high level; when the retroreflective photoelectric detection switch 2 is not blocked, the output is low level;

[0033] The roller conveyor 5 is connected to the distributed IO module, and is used to receive the control signal transmitted by the distributed IO module to start or stop transporting the cigarette box 3;

[0034] The through-beam photoelectric detection switch 1 is connected to the distributed IO module, and is used to receive the detection instruction transmitted by the distributed IO module, and feed back the data to the distributed IO module after detection;

[0035] The reflective photoelectric detection switch 2 is connected to the distributed IO module, and is used to receive the detection instruction transmitted by the distributed IO module, start real-time detection of whether there is a cigarette box 3 passing by, and feed back the real-time detection level data to the distributed IO module;

[0036] The sound and light alarm is connected to the distributed IO module, and is used to emit a sound and light alarm or stop the sound and light alarm after receiving the control signal transmitted by the distributed IO module;

[0037] The reset button is connected to the distributed IO module, and is used to send a reset signal to the distributed IO module to reset each module;

[0038] The distributed IO module is connected to the data processing device, and is used to collect the data fed back by each module and feed it back to the data processing device, and send the control signal sent by the data processing device to the corresponding module;

[0039] The data processing device is connected to the input and display device. The data processing device is used to receive the data fed back by the distributed IO module and the data input by the input and display device, perform analysis and processing, send corresponding control signals to the distributed IO module, and at the same time display the processing results through the input and display device.

[0040] Further, the data processing device is a finished product line PLC controller.

[0041] Further, the input and display device is a finished product line touch display screen.

[0042] As Figures 4 to 6 shown, a detection method for a cigarette box tape edge warping detection device for a finished product conveyor line, the specific steps are as follows:

[0043] A. System initialization, the entire device starts to run, and the cigarette box enters the roller conveyor 5 for transportation; the transportation speed of the roller conveyor is constantly 0.4 m / s;

[0044] B. If the data processing device does not receive the signal to start the cigarette box tape edge warping detection transmitted by the input and display device, the roller conveyor 5 normally transports the cigarette box 3; if it receives the signal for cigarette box tape edge warping detection, it enters step C;

[0045] C. The data processing device issues a detection instruction, which is transmitted to the reflective photoelectric detection switch 2 through the distributed IO module. The reflective photoelectric detection switch 2 starts to detect in real time whether there is a cigarette box 3 passing by, and feeds back the real-time level data to the data processing device through the distributed IO module. If a rising edge signal appears in the level data transmitted by the reflective photoelectric detection switch 2, it indicates that the front part of the cigarette box 3 reaches the position of the reflective photoelectric detection switch 2. At this time, the data processing device issues a detection instruction, which is transmitted to the opposed photoelectric detection switch 1 through the distributed IO module. The opposed photoelectric detection switch 1 conducts a detection and feeds back the level data after detection. The data processing device processes the level data fed back by the opposed photoelectric detection switch 1. Since the opposed photoelectric detection switch 1 outputs a low level of 0 and a high level of 1, if the level value fed back by the opposed photoelectric detection switch 1 is 1, it indicates that the front tape 4 of the cigarette box 3 has not warped, and the roller conveyor 5 is transporting normally, and step D is entered. If the level value fed back by the opposed photoelectric detection switch 1 is 0, it indicates that the front tape 4 of the cigarette box 3 has warped, and step E is entered.

[0046] D. When a falling edge signal appears in the level data transmitted by the reflective photoelectric detection switch 2, it indicates that the rear part of the cigarette box 3 reaches the position of the reflective photoelectric detection switch 2. The data processing device delays for 30 ms and issues a detection instruction, which is transmitted to the opposed photoelectric detection switch 1 through the distributed IO module (this can ensure that the rear part of the cigarette box 3 moves beyond the opposed photoelectric detection switch 1, and the exceeding distance is less than 10 mm). The opposed photoelectric detection switch 1 conducts a detection and feeds back the level data after detection. The data processing device processes the level data fed back by the opposed photoelectric detection switch 1. If the level value fed back by the opposed photoelectric detection switch 1 is 1, it indicates that the rear tape of the cigarette box 3 has not warped, and the roller conveyor 5 is transporting normally, and step F is entered. If the level value fed back by the opposed photoelectric detection switch 1 is 0, it indicates that the rear tape of the cigarette box 3 has warped, and step E is entered.

[0047] E. The data processing device displays the warping fault through the input and display device, and at the same time issues a control signal, which is transmitted to the roller conveyor 5 and the audible and visual alarm through the distributed IO module, respectively causing the roller conveyor 5 to stop transporting and the audible and visual alarm to give an audible and visual alarm. After the staff discovers it and timely processes the cigarette box 3 with tape warping, by pressing the reset button, the reset signal is fed back to the data processing device. After the data processing device processes it, it issues a control signal to make the roller conveyor 5 resume transporting and stop the audible and visual alarm. Then step F is entered.

[0048] F. The tape warping detection of one cigarette box 3 is completed, and then steps B to E are repeated in a loop until the tape warping detection of the required number of cigarette boxes 3 is completed, and then the entire detection device is stopped.

Claims

1. A cigarette box tape edge warping detection device for a finished product conveyor line, characterized in that It includes a data processing device, an input and display device, a distributed IO module, a reset button, an audible and visual alarm, a roller conveyor, an opposed photoelectric detection switch, and a reflective photoelectric detection switch; There are two opposed photoelectric detection switches, which are symmetrically arranged on both sides of the roller conveyor; the heights of the two opposed photoelectric detection switches are the same as the midpoint height of the tape of the cigarette case on the roller conveyor; the reflective photoelectric detection switch is fixed on one side of the roller conveyor 10 mm behind the opposed photoelectric detection switch, and the height of the reflective photoelectric detection switch is 40 mm lower than the lowest point of the tape of the cigarette case on the roller conveyor; when the opposed photoelectric detection switch is not blocked, the output is high level; when the reflective photoelectric detection switch is not blocked, the output is low level; The roller conveyor is connected to the distributed IO module, and is used to receive the control signal transmitted by the distributed IO module to start or stop transporting the cigarette case; The opposed photoelectric detection switch is connected to the distributed IO module, and is used to receive the detection instruction transmitted by the distributed IO module, and feed back the data to the distributed IO module after detection; The reflective photoelectric detection switch is connected to the distributed IO module, and is used to receive the detection instruction transmitted by the distributed IO module, start to detect in real time whether there is a cigarette case passing by, and feed back the real-time detection level data to the distributed IO module; The audible and visual alarm is connected to the distributed IO module, and is used to emit an audible and visual alarm or stop the audible and visual alarm after receiving the control signal transmitted by the distributed IO module; The reset button is connected to the distributed IO module, and is used to send a reset signal to the distributed IO module to reset each module; The distributed IO module is connected to the data processing device, and is used to collect the data fed back by each module and feed it back to the data processing device, and send the control signal sent by the data processing device to the corresponding module; The data processing device is connected to the input and display device. The data processing device is used to receive the data fed back by the distributed IO module and the data input by the input and display device, analyze and process them, then send the corresponding control signal to the distributed IO module, and at the same time display the processing result through the input and display device; When a rising edge signal appears in the reflective photoelectric detection switch, it indicates that the front part of the cigarette case reaches the position of the reflective photoelectric detection switch. At this time, the opposed photoelectric detection switch performs a detection; when a falling edge signal appears in the reflective photoelectric detection switch, it indicates that the rear part of the cigarette case reaches the position of the reflective photoelectric detection switch. At this time, the opposed photoelectric detection switch is delayed for 30 ms to perform a detection.

2. The cigarette box tape edge warping detection device for the finished product conveyor line according to claim 1, wherein The data processing device is a finished product line PLC controller.

3. The cigarette case tape edge warping detection device for the finished product conveyor line according to claim 1, characterized in that, The input and display device is a finished product line touch display screen.

4. A detection method for a cigarette box tape edge warping detection device used in a finished product conveyor line according to any one of claims 1 to 3, characterized in that, The specific steps are as follows: A. System initialization, the whole device starts to run, and the cigarette case enters the roller conveyor to start transportation; the transportation speed of the roller conveyor is constantly 0.4 m / s; B. If the data processing device does not receive the signal from the input and display device to start the detection of the tape edge warping of the cigarette case, the roller conveyor transports the cigarette cases normally; if it receives the signal of the tape edge warping detection of the cigarette case, it enters step C; C. The data processing device issues a detection instruction, which is transmitted to the reflective photoelectric detection switch through the distributed IO module. The reflective photoelectric detection switch starts to detect in real time whether there is a cigarette case passing by, and feeds back the real-time level data to the data processing device through the distributed IO module; If there is a rising edge signal in the level data transmitted by the reflective photoelectric detection switch, it indicates that the front part of the cigarette case reaches the position of the reflective photoelectric detection switch; at this time, the data processing device issues a detection instruction, which is transmitted to the opposed photoelectric detection switch through the distributed IO module. The opposed photoelectric detection switch conducts a detection and feeds back the level data after detection; The data processing device processes the level data fed back by the opposed photoelectric detection switch. If the level fed back by the opposed photoelectric detection switch is high level, it indicates that the front tape of the cigarette case does not have edge warping, and the roller conveyor transports normally, and enters step D; if the level fed back by the opposed photoelectric detection switch is low level, it indicates that the front tape of the cigarette case has edge warping, and enters step E; D. When there is a falling edge signal in the level data transmitted by the reflective photoelectric detection switch, it indicates that the rear part of the cigarette case reaches the position of the reflective photoelectric detection switch. The data processing device delays for 30 ms to issue a detection instruction, which is transmitted to the opposed photoelectric detection switch through the distributed IO module. The opposed photoelectric detection switch conducts a detection and feeds back the level data after detection; The data processing device processes the level data fed back by the opposed photoelectric detection switch. If the level fed back by the opposed photoelectric detection switch is high level, it indicates that the rear tape of the cigarette case does not have edge warping, and the roller conveyor transports normally, and enters step F; if the level fed back by the opposed photoelectric detection switch is low level, it indicates that the rear tape of the cigarette case has edge warping, and enters step E; E. The data processing device displays the edge warping fault through the input and display device, and at the same time issues a control signal, which is transmitted to the roller conveyor and the audible and visual alarm through the distributed IO module, respectively, to stop the roller conveyor from transporting and make the audible and visual alarm perform audible and visual alarm; after the staff discovers it and processes the cigarette case with tape edge warping in time, by pressing the reset button, the reset signal is fed back to the data processing device. After the data processing device processes it, it issues a control signal to make the roller conveyor resume transporting and stop the audible and visual alarm; then enter step F; F. Complete the detection of the tape edge warping of one cigarette case, and then loop and repeat steps B to E until the detection of the tape edge warping of the required number of cigarette cases is completed, and then stop the entire detection device.

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