Cigarette box end opening detection system and opening detection carton filling and sealing machine

Abstract

The utility model discloses a cigarette box end opening detection system and an opening detection carton filling and sealing machine. In the system, after a controller detects a box outlet signal sent by a box outlet monitoring and detecting device, the opening state of the end of a smoke box can be accurately detected through an opening detecting device arranged at an opening monitoring and detecting point within preset time, and when it is detected that the current smoke box is in the opening state, an opening signal is sent to the controller; and determining that the current smoke box is an open smoke box. The utility model further provides an opening detection boxing and sealing machine which is simple in structure and capable of automatically recognizing an opening cigarette box, triggering an alarm and stopping, improves accuracy of opening detection of the cigarette box, prevents production from being affected by faults such as adhesive tape winding or poor cutting through the alarm and stopping, reduces waste of raw materials and improves production efficiency. And the production cost is reduced, and the quality level of products is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette box sealing machines, and in particular to a cigarette box end opening detection system and an opening detection and sealing machine. Background Technology

[0002] With social progress and technological development, automated equipment is being used more and more widely in the cigarette production industry. It can not only significantly improve production efficiency and reduce reliance on manual labor, thereby saving a lot of human and material resources, but also greatly improve product quality and ensure that cigarettes meet strict quality standards.

[0003] In related technologies, carton sealing machines use self-adhesive tape devices, which have tape fault and tape empty detection functions, and can identify tape breakage or exhaustion. However, they cannot detect problems such as tape tangling onto the tape reel or cutting defects. When these problems occur, the carton sealing machine does not automatically stop or alarm, resulting in a large number of open cigarette boxes, increasing the risk of missing tape. Incompletely cut tape adheres to the cigarette boxes, and as the equipment continues to run, the tape tangles, leading not only to a large amount of tape waste, but also rendering the tangled cigarette boxes unusable due to residual adhesive and damage, resulting in waste of raw materials. Furthermore, open cigarette boxes and cigarette boxes with poorly cut tape cannot be detected in a timely manner, making it difficult for operators to identify these problems immediately. This results in a large number of defective cigarette boxes flowing into subsequent processes, increasing production costs and reducing production efficiency. Utility Model Content

[0004] This utility model provides a cigarette box end opening detection system and an opening detection and sealing machine to solve the problems of low detection accuracy of open cigarette boxes caused by the inability to completely detect tape faults, as well as the resulting high production costs and low production efficiency.

[0005] According to one aspect of the present invention, a cigarette box end opening detection system is provided for detecting the opening of cigarette boxes conveyed on a cigarette box conveyor belt, including:

[0006] The device consists of an opening detection device, an outflow monitoring and detection device, and a controller; the opening detection device and the outflow monitoring and detection device are electrically connected to the controller; both the opening detection device and the outflow monitoring and detection device are fixedly installed on a workbench equipped with a cigarette box conveyor belt.

[0007] The out-of-box monitoring and detection device is set at the preset out-of-box monitoring and detection point on the workbench. It is used to send an out-of-box signal to the controller when it detects that the cigarette box that has been sealed and pushed has been delivered to the out-of-box monitoring and detection point.

[0008] The opening detection device is set close to the opening monitoring and detection point and is used to send an opening signal to the controller when it detects that the tobacco box it passes is in an open state.

[0009] The controller is used to determine that the currently conveyed tobacco box is an open tobacco box when an opening signal is detected within a preset time interval after the exit signal is detected.

[0010] As a further solution to the cigarette box end opening detection system, the out-of-box monitoring and detection device includes:

[0011] The system comprises a first support, a second support, a first adjusting block, a second adjusting block, a first transmitting sensor, and a first receiving sensor. The first and second supports are positioned at preset monitoring and detection points on the workbench and are arranged opposite each other on both sides of the conveyor belt. A first adjusting block is mounted on the first support, and a second adjusting block is mounted on the second support. A first transmitting sensor is mounted on the first adjusting block, and a first receiving sensor is mounted on the second adjusting block. The first transmitting sensor and the first receiving sensor are arranged opposite each other on both sides of the conveyor belt via corresponding supports and adjusting blocks, and the height of the first transmitting sensor and the first receiving sensor relative to the conveyor belt is higher than the height of a standard cigarette box.

[0012] The first receiving sensor is used to receive the signal sent by the first transmitting sensor on a preset physical path, and when the physical path is blocked by the open tobacco box, it triggers the generation of an exit signal and sends it to the controller.

[0013] As a further embodiment of the cigarette box end opening detection system, the opening detection device includes a transceiver sensor group, which includes a transmitting sensor and a receiving sensor. The transmitting sensor and the receiving sensor are arranged adjacent to each other above the cigarette box conveyor belt in the vertical direction along the end face of the cigarette box through a preset support component, and the setting height of the transmitting sensor and the receiving sensor relative to the conveyor belt is higher than the height of a standard cigarette box.

[0014] The transceiver sensor group is used to transmit and receive signals on a preset physical path, and when the physical path is blocked by an open tobacco box, it triggers the generation of an open signal and sends it to the controller.

[0015] As a further embodiment of the cigarette box end opening detection system, both the transmitting sensor and the receiving sensor are photoelectric induction switches.

[0016] As a further embodiment of the cigarette box end opening detection system, the support assembly includes a third bracket and a fourth bracket, which are arranged opposite to each other on both sides of the conveyor belt. The third bracket is equipped with a second transmitting sensor and a second receiving sensor, and the fourth bracket is equipped with a third transmitting sensor and a third receiving sensor.

[0017] As a further embodiment of the cigarette box end opening detection system, a third adjustment block is provided on the third bracket, and a fourth adjustment block is provided on the fourth bracket; a second transmitting sensor and a second receiving sensor are provided on the third adjustment block, and a third transmitting sensor and a third receiving sensor are provided on the fourth adjustment block.

[0018] As a further embodiment of the cigarette box end opening detection system, the system also includes: an alarm device, which is electrically connected to the controller;

[0019] The controller is also used to send an alarm signal to the alarm device when it is determined that the currently conveyed tobacco box is an open tobacco box;

[0020] The alarm device is used to provide audible and visual alarms based on the received alarm signals.

[0021] As a further embodiment of the cigarette box end opening detection system, the controller is electrically connected to a preset tape fault signal point on the workbench;

[0022] Accordingly, the controller is also used to: when it is determined that the currently conveyed cigarette box is an open cigarette box, send a stop signal to a preset tape fault signal point on the workbench to trigger a tape fault alarm and stop the equipment operation.

[0023] According to another aspect of the present invention, an opening detection and sealing machine for cigarette boxes is provided, the opening detection and sealing machine for cigarette boxes including the cigarette box end opening detection system described in any embodiment of the present invention.

[0024] As a further embodiment of the box-sealing machine for opening detection, the box-sealing machine is a YP13 box-sealing machine.

[0025] This utility model's cigarette box end opening detection system, through an opening detection device set at the opening monitoring and detection point, accurately detects the opening state of the cigarette box end within a preset time after receiving the exit signal sent by the exit monitoring and detection device. Upon detecting an opening, it sends a signal to the controller, accurately locating the opening cigarette box. This improves the automation and efficiency of the production process, reduces labor and time costs, and reduces false detections and missed detections by promptly detecting and handling opening cigarette boxes. This ensures that only qualified cigarette boxes enter subsequent processes, improving the overall product quality and enhancing the reliability and stability of the entire production system. This utility model also provides an opening detection and sealing machine. This machine has a simple structure and can automatically identify opening cigarette boxes, trigger an alarm, and stop the machine, improving the accuracy of cigarette box opening detection. The alarm and shutdown prevent the impact of faults such as tape tangling or poor cutting on production, reducing raw material waste, lowering production costs, and improving product quality and efficiency.

[0026] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a cigarette box end opening detection system according to Embodiment 1 of the present utility model;

[0029] Figure 2 This is a schematic diagram of an opening detection and sealing box machine according to Embodiment 2 of this utility model;

[0030] Figure 3 This is a schematic diagram of a scenario for the cigarette box end opening detection system applicable to this embodiment of the utility model;

[0031] Figure 4 This is a partial enlarged view of the detection device in the cigarette box end opening detection system applicable to this utility model embodiment;

[0032] Figure 5 This is an electrical schematic diagram of the cigarette box end opening detection system applicable to the embodiments of this utility model. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] Example 1

[0036] Figure 1 This is a schematic diagram of a cigarette box end opening detection system provided in Embodiment 1 of this utility model. This embodiment is applicable to situations where the opening of cigarette boxes conveyed on a cigarette box conveyor belt is detected. Correspondingly, as... Figure 1 As shown, the system includes:

[0037] The cigarette box opening detection device 120, the cigarette box exit monitoring and detection device 110, and the controller 130 are all included. The cigarette box opening detection device 120 and the cigarette box exit monitoring and detection device 110 are electrically connected to the controller 130. The cigarette box opening detection device 120 and the cigarette box exit monitoring and detection device 110 are both fixedly installed on the workbench on which the cigarette box conveyor belt is installed.

[0038] The out-of-box monitoring and detection device 110 is set at a preset out-of-box monitoring and detection point on the workbench. It is used to send an out-of-box signal to the controller 130 when it detects that the cigarette box that has been sealed and pushed has been delivered to the out-of-box monitoring and detection point.

[0039] The opening detection device 120 is set close to the opening monitoring and detection point and is used to send an opening signal to the controller 130 when it detects that the tobacco box it passes through is in an open state.

[0040] The controller 130 is used to determine that the currently conveyed tobacco box is an open tobacco box when an opening signal is detected within a preset time interval after the exit signal is detected.

[0041] In this embodiment of the invention, the controller can be specifically understood as: a device responsible for coordinating and controlling the operation of the entire equipment, capable of receiving signals from various sensors and switches, and controlling various components according to preset logic or programs, such as a programmable logic controller (PLC) or an industrial computer. Electrical connection can be specifically understood as: electrical connection between devices via wires, interfaces, connectors, or other means. The preset exit monitoring detection point can be specifically understood as: a detection point set at a predetermined position along the cigarette box conveyor belt after the cigarette box has been sealed and pushed out of the sealing machine. This point can be located near the exit of the sealing machine or at other specific positions on the cigarette box conveyor belt, used to detect whether the cigarette box has completed the sealing operation. Correspondingly, the opening monitoring detection point can be set at a preset position a certain distance from the preset exit monitoring detection point along the running direction of the cigarette box conveyor belt, used to detect whether the sealed cigarette box has an open opening.

[0042] Specifically, the sealing machine seals the cigarette boxes, such as by applying tape and tightening the lid, to ensure a good seal. Once sealing is complete, the sealing machine activates a pushing device to push the sealed cigarette box off the machine's work platform, moving it to the next process or a designated location. When the cigarette box passes a preset exit monitoring point, the exit monitoring device (e.g., a photoelectric sensor switch perpendicular to the conveyor belt, positioned at a height higher than the standard cigarette box height; the height of the cigarette box reduces the light reflection time for the photoelectric sensor switch, thus detecting the cigarette box at the exit monitoring point) sends an exit signal to the controller 130 upon detecting that the sealed and pushed cigarette box has reached the exit monitoring point.

[0043] After detecting the ejection signal, the controller 130 starts its internal timer to detect the opening signal according to a preset time interval. The lower limit of the preset time interval is set based on the conveyor belt's running speed, the length of the tobacco box along the conveyor belt's running direction, and the distance between the opening monitoring point and the preset ejection monitoring point. This ensures that the tobacco box to be detected moves from the ejection monitoring point to the opening monitoring point, completing the opening detection of the entire tobacco box. Furthermore, the upper limit of the preset time interval must ensure that only one tobacco box triggers the ejection signal within the preset time interval.

[0044] When the tobacco box passes a preset opening monitoring point, the opening detection device 120 (for example, it can be set vertically above the tobacco box conveyor belt along the conveyor belt direction, with the transmitting and receiving sensors positioned opposite each other, and its height relative to the conveyor belt higher than that of a standard tobacco box, causing the end face of the open tobacco box to naturally tilt upwards, blocking the detection light and triggering the detection) sends an opening signal to the controller 130 when it detects that the tobacco box being passed is in an open state. The controller 130, upon detecting an opening signal within a preset time interval after detecting the exit signal, determines that the currently transported tobacco box is an open tobacco box.

[0045] The cigarette box end opening detection system of this utility model, through the opening detection device set at the opening monitoring and detection point, accurately detects the opening state of the cigarette box end within a preset time after receiving the exit signal sent by the exit monitoring and detection device, and sends a signal to the controller when the opening is detected, accurately locating the opening cigarette box. This improves the automation and efficiency of the production process, reduces labor and time costs, reduces false detection and missed detection of opening cigarette boxes, ensures that only qualified cigarette boxes enter the subsequent process, improves the overall quality of the product, and enhances the reliability and stability of the entire production system.

[0046] Optionally, based on the above embodiments, the out-of-box monitoring and detection device may include:

[0047] The system comprises a first support, a second support, a first adjusting block, a second adjusting block, a first transmitting sensor, and a first receiving sensor. The first and second supports are positioned at preset monitoring and detection points on the workbench and are arranged opposite each other on both sides of the conveyor belt. A first adjusting block is mounted on the first support, and a second adjusting block is mounted on the second support. A first transmitting sensor is mounted on the first adjusting block, and a first receiving sensor is mounted on the second adjusting block. The first transmitting sensor and the first receiving sensor are arranged opposite each other on both sides of the conveyor belt via corresponding supports and adjusting blocks, and the height of the first transmitting sensor and the first receiving sensor relative to the conveyor belt is lower than or equal to the height of a standard cigarette box.

[0048] The first receiving sensor is used to receive the signal sent by the first transmitting sensor on a preset physical path, and when the physical path is blocked by the open tobacco box, it triggers the generation of an exit signal and sends it to the controller.

[0049] In this embodiment of the invention, a first bracket, a first adjusting block, and a first transmitting sensor are disposed on one side of the conveyor belt, while a second bracket, a second adjusting block, and a first receiving sensor are disposed on the other side of the conveyor belt, respectively, and are positioned opposite to the first bracket, the first adjusting block, and the first transmitting sensor. An adjusting block is mounted on the bracket, and a sensor is mounted on each adjusting block. Specifically, the first transmitting sensor is mounted on the first adjusting block, and the first receiving sensor is mounted on the second adjusting block. The height of the first transmitting sensor and the first receiving sensor relative to the conveyor belt is lower than or equal to the height of a standard cigarette box. The adjusting block is a small component mounted on the bracket, used for fine-tuning the position or angle of the sensor to ensure accurate detection. The adjusting block may have a protruding portion for manual adjustment, and graduations or markings next to it to indicate the adjustment position or angle.

[0050] Specifically, the first receiving sensor and the first transmitting sensor are used in pairs, respectively installed on both sides of the tobacco box conveyor belt, and positioned opposite each other in a straight line perpendicular to the direction of belt operation, forming a physical path. Under normal circumstances, the signal emitted by the first transmitting sensor can be directly received by the first receiving sensor. When a tobacco box passes by, the body of the tobacco box blocks the physical path between the first transmitting sensor and the first receiving sensor. Due to the obstruction by the tobacco box, the first receiving sensor cannot receive the signal emitted by the first transmitting sensor, thus detecting the signal obstruction, triggering and generating an exit signal to be sent to the controller.

[0051] By pairing the first receiving sensor and the first transmitting sensor, when the cigarette box passes the preset exit monitoring detection point, an exit signal can be immediately detected and generated, causing the controller to start the internal timer to monitor whether the exited cigarette box has an opening. This improves the accuracy of subsequent open cigarette box detection, avoids misjudgment and missed judgment, and the automated triggering method improves production efficiency, reduces labor costs, and also reduces the impact of human factors on the detection results.

[0052] Optionally, based on the above embodiments, the mouth opening detection device may include a transceiver sensor group, which includes a transmitting sensor and a receiving sensor; the transmitting sensor and the receiving sensor are arranged adjacent to each other above the tobacco box conveyor belt along the vertical direction of the tobacco box end face through a preset support component, and the setting height of the transmitting sensor and the receiving sensor relative to the conveyor belt is higher than the height of the standard tobacco box.

[0053] The transceiver sensor group is used to transmit and receive signals on a preset physical path, and when the physical path is blocked by an open tobacco box, it triggers the generation of an open signal and sends it to the controller.

[0054] In this embodiment of the invention, the mouth-opening detection device includes a pair of transmitting and receiving sensors, mounted above the tobacco box conveyor belt via a pre-set support assembly and arranged adjacent to each other along the vertical direction of the tobacco box end face. The sensors detect the opening via diffuse reflection. The transmitting sensor emits light, which, due to the microscopic unevenness of the object's surface, undergoes diffuse reflection when it strikes the surface. The receiving sensor receives the reflected light and converts it into an electrical signal. If the intensity or angle of the received light reaches a set threshold, it indicates the presence of an object. Different thresholds correspond to different tobacco box states (e.g., open mouth state), thereby triggering corresponding control signals.

[0055] The transmitting and receiving sensors are positioned at a height higher than the standard tobacco box relative to the conveyor belt to ensure that the tobacco box passes beneath the sensors under the influence of the conveyor belt. A pre-defined physical path is formed between the transmitting and receiving sensors for signal transmission.

[0056] Specifically, under normal circumstances, the signal emitted by the transmitting sensor is reflected off the end face of the cigarette box and received by the receiving sensor. When an open cigarette box passes by, its opening blocks this physical path, causing the receiving sensor to be unable to receive the signal from the transmitting sensor, or to receive a signal with a different intensity or angle than under normal circumstances. By installing the sensor in only one location, installation costs and complexity are reduced. Utilizing the principle of diffuse reflection, it can adapt to the detection of objects of different colors and materials, and is particularly suitable for detecting the open state of cigarette boxes. It can accurately detect the presence and position of objects, reducing false positives and false negatives. The automated detection method improves production efficiency, reduces labor costs, and also minimizes the impact of human factors on the detection results.

[0057] Optionally, based on the above embodiments, both the transmitting sensor and the receiving sensor can be photoelectric induction switches.

[0058] Specifically, photoelectric induction switches typically have strong anti-interference capabilities, resisting a certain degree of electromagnetic and light interference, ensuring the accuracy and stability of detection results. Through the principle of diffuse reflection, they can adapt to the detection of objects of different colors and materials, and are particularly suitable for detecting the open state of cigarette boxes. They can accurately detect the presence and position of objects, reducing false and missed detections. Automated detection methods improve production efficiency, reduce labor costs, and also reduce the impact of human factors on detection results.

[0059] Optionally, based on the above embodiments, the support assembly may include a third bracket and a fourth bracket, which are arranged opposite to each other on both sides of the conveyor belt. The third bracket is provided with a second transmitting sensor and a second receiving sensor, and the fourth bracket is provided with a third transmitting sensor and a third receiving sensor.

[0060] Specifically, the support components of the opening detection device are divided into a third bracket and a fourth bracket, which are arranged opposite each other on both sides of the conveyor belt. The third bracket houses a second transmitting sensor and a second receiving sensor, while the fourth bracket houses a third transmitting sensor and a third receiving sensor. Each bracket of the opening detection device is equipped with a sensor that integrates transmitting and receiving functions. The sensors are installed perpendicular to the end face of the tobacco box. When the end face of the tobacco box is not properly sealed and is tilted upwards, it will block the light from the sensor, triggering a detection signal. Sensors on both sides of the conveyor belt detect the opening status of the tobacco box from left and right angles, ensuring that no open tobacco boxes are missed. Utilizing the principle of diffuse reflection, it can adapt to the detection of objects of different colors and materials, and is particularly suitable for detecting the opening status of tobacco boxes. It can accurately detect the presence and position of objects, reducing false positives and false negatives. The automated detection method improves production efficiency, reduces labor costs, and also reduces the impact of human factors on the detection results.

[0061] Optionally, based on the above embodiments, a third adjustment block is provided on the third support, and a fourth adjustment block is provided on the fourth support; a second transmitting sensor and a second receiving sensor are provided on the third adjustment block, and a third transmitting sensor and a third receiving sensor are provided on the fourth adjustment block.

[0062] Specifically, the adjustment block is a small component mounted on a bracket, used to fine-tune the position or angle of the transmitting and receiving sensors to ensure accurate detection. The adjustment block has a protruding section for manual adjustment and graduations or markings to indicate the adjusted position or angle. A third adjustment block is located on the third bracket for adjusting the second transmitting and receiving sensors, and a fourth adjustment block is located on the fourth bracket for adjusting the third transmitting and receiving sensors. Depending on different production needs and the size of the smoke box, fine-tuning the position or angle of the sensors ensures that the detection light is accurately aligned with the end face of the smoke box, reducing false positives and false negatives and improving detection accuracy. The protruding section and graduations on the adjustment block facilitate manual adjustment and recording by operators, providing a clear understanding of the adjusted position or angle and reducing the difficulty of equipment maintenance.

[0063] Furthermore, based on the above embodiments, the cigarette box end opening detection system may also include: an alarm device, which is electrically connected to the controller;

[0064] The controller is also used to send an alarm signal to the alarm device when it is determined that the currently conveyed tobacco box is an open tobacco box;

[0065] The alarm device is used to provide audible and visual alarms based on the received alarm signals.

[0066] Specifically, the controller can quickly and accurately identify open cigarette boxes and trigger alarms in a timely manner, improving the efficiency of detecting problematic cigarette boxes during the production process. The audible and visual alarms can immediately attract the attention of operators and prompt them to take measures, such as stopping the machine for inspection, adjusting the equipment, or removing the problematic cigarette boxes, thereby preventing the production of more unqualified products and preventing problematic cigarette boxes from flowing into subsequent production stages, thus improving the reliability of production.

[0067] Optionally, based on the above embodiments, the controller is electrically connected to a preset tape fault signal point on the workbench;

[0068] Accordingly, the controller is also used to: when it is determined that the currently conveyed cigarette box is an open cigarette box, send a stop signal to a preset tape fault signal point on the workbench to trigger a tape fault alarm and stop the equipment operation.

[0069] In this embodiment of the present invention, the preset tape fault signal point can be specifically understood as follows: when the tape malfunctions, the relevant detection device will send a fault signal to this preset tape fault signal point to trigger a shutdown or alarm operation.

[0070] Specifically, when the currently conveying cigarette box is determined to be an open cigarette box, the controller sends a stop signal to the preset tape fault signal point on the workbench to trigger an audible and visual alarm for tape fault and stop the equipment operation. The open state of the cigarette box indirectly detects faults such as tape winding or poor cutting. The audible and visual alarms and equipment shutdown immediately attract the attention of operators, allowing them to take action and preventing the production of more defective products and the flow of problematic cigarette boxes into subsequent production stages. This improves production reliability, avoids potential damage to equipment caused by open cigarette boxes continuing to operate on the production line, extends equipment lifespan, reduces production delays and resource waste caused by problematic cigarette boxes, helps maintain smooth production line operation, improves overall production efficiency, and reduces production costs.

[0071] Example 2

[0072] Figure 2 This is a schematic diagram of an opening detection box sealing machine provided in Embodiment 2 of this utility model. This embodiment can be applied to the situation where the opening of the cigarette boxes conveyed on the cigarette box conveyor belt is detected after the box sealing machine has completed the sealing and pushing operation of the cigarette boxes.

[0073] Correspondingly, such as Figure 2 As shown, the box opening detection and sealing machine 200 includes: a box exit monitoring and detection device 210, a box opening detection device 220, and a controller 230.

[0074] The opening detection device 220 and the box exit monitoring detection device 210 are electrically connected to the controller 230 respectively; the opening detection device 220 and the box exit monitoring detection device 210 are both fixedly installed on the workbench on which the cigarette box conveyor belt is installed;

[0075] The out-of-box monitoring and detection device 210 is set at a preset out-of-box monitoring and detection point on the workbench. It is used to send an out-of-box signal to the controller 230 when it detects that the cigarette box that has been sealed and pushed has been delivered to the out-of-box monitoring and detection point.

[0076] The opening detection device 220 is set close to the opening monitoring and detection point and is used to send an opening signal to the controller 230 when it detects that the tobacco box it passes through is in an open state.

[0077] The controller 230 is used to determine that the currently conveyed tobacco box is an open tobacco box when an opening signal is detected within a preset time interval after the exit signal is detected.

[0078] The opening detection and sealing machine of this utility model includes the cigarette box end opening detection system described in any embodiment of this utility model. The opening detection and sealing machine has a simple structure and can automatically identify open cigarette boxes, trigger an alarm and stop the machine, thereby improving the accuracy of cigarette box opening detection. By triggering an alarm and stopping the machine, it prevents the impact of faults such as tape tangling or poor cutting on production, reduces the waste of raw materials, lowers production costs, and improves product quality and production efficiency.

[0079] Optionally, based on the above embodiments, the box sealing machine is a YP13 box sealing machine.

[0080] To address the shortcomings of the self-adhesive tape device in the YP13 carton sealing machine, which can only detect tape breakage or tape exhaustion during actual operation, this invention optimizes the system by adding the cigarette box end opening detection system described in any embodiment of this invention. This system can automatically identify open cigarette boxes, trigger an alarm, and stop the machine, improving the accuracy of cigarette box opening detection. By triggering an alarm and stopping the machine, it prevents the impact of faults such as tape tangling or poor cutting on production, reduces raw material waste, lowers production costs, and improves product quality and production efficiency.

[0081] Specific application scenarios

[0082] To facilitate understanding, the specific application scenarios applicable to each embodiment of this utility model are described below. With social progress and technological development, automated equipment is increasingly widely used in the cigarette production industry. This not only significantly improves production efficiency and reduces reliance on manual labor, thus saving substantial human and material resources, but also greatly enhances product quality, ensuring cigarettes meet stringent quality standards. Some carton sealing machines are equipped with self-adhesive tape devices. For example, the YP13 carton sealing machine uses a self-adhesive tape device. Below the pulse disc of the tape device are tape fault detection and tape empty detection. These detections can detect tape breakage or tape exhaustion during actual operation. However, for faults such as tape tangling on the tape reel or poor tape cutting, because the tape reel continues to rotate during these faults, pulse signals still enter the controller (such as a PLC), causing these faults to go undetected.

[0083] The tape may not be properly bonded because it gets tangled in the tape roll assembly, causing the tape pulse disc to continue rotating. This results in the PLC still receiving pulse signals. If the number of pulse signals is within the program-defined range during a complete cycle from the start to the end of the cigarette box pressing, the box-sealing machine will continue to run without stopping or reporting an error. This can lead to the continuous production of open cigarette boxes that flow into the next process, and may even result in cigarette cartons falling out of the box, creating a risk of missing cigarette cartons.

[0084] Poor tape adhesion may be due to a defect in the tape cutter, causing the tape to not be completely cut. Uncut tape sticks to the cigarette box, and as the box moves along the conveyor belt, the tape pulse disc continues to rotate. The controller continues to receive pulse signals, and the box-sealing machine continues to run without stopping or reporting an error. This results in tape continuously wrapping around the cigarette box. Unwound tape may also get tangled in the machine or the exit belt, creating a production risk. Furthermore, tape that is not properly bonded and gets tangled in the tape roll mounting assembly can become tightly wound due to the compression between the mounting components. This indirectly increases the labor and time costs for operators to clean the tape roll mounting assembly and remove tape tangled in the machine or belt, leading to reduced production efficiency.

[0085] A significant amount of tape waste is generated when tape gets entangled in tape roll assembly components or when tape is poorly cut. Much of this waste tape is unusable, resulting in material waste. Furthermore, if tape gets caught in the machine's internal components or the exit belt, it will further increase waste as the machine runs. When poorly cut tape causes a large amount of tape to become entangled on the surface of the cigarette box, even after processing, the surface will have numerous adhesive residues and damage, rendering the cigarette boxes unusable and resulting in waste.

[0086] Furthermore, the inability to promptly inspect open cigarette boxes results in a large number of open cigarette boxes and poorly cut tape boxes flowing into the next process. This causes problematic cigarette boxes to accumulate gradually during production, only being discovered when large amounts of waste are generated or equipment malfunctions, thus increasing production costs.

[0087] To address the aforementioned problems, this utility model provides an opening detection system that can be installed in a carton sealing machine.

[0088] Taking the YP13 carton sealing machine as an example, a Siemens S7-200 PLC is installed inside the electrical cabinet of the YP13 carton sealing machine. Figure 3 This is a schematic diagram of a scenario for the cigarette box end opening detection system applicable to this embodiment of the utility model. The PLC is powered by a 24V positive power line and a 24V negative power line. An exit monitoring and detection device is installed at the exit of the sealing machine (equivalent to the exit monitoring and detection point mentioned above), and exit brackets are installed on both sides of the conveyor belt on the workbench. Each exit bracket is equipped with an exit adjustment block, and each exit adjustment block is equipped with an exit photoelectric sensor switch. Figure 4 This is a partial enlarged view of the detection device in the cigarette box end opening detection system applicable to this utility model embodiment. One of the outlet adjustment blocks is equipped with a transmitting sensor, and the other outlet adjustment block is equipped with a receiving sensor. The sensor is set at a height lower than or equal to the height of the standard cigarette box relative to the conveyor belt. When the cigarette box that has been sealed and pushed is detected to be conveyed to the exit monitoring detection point, an exit signal is sent to the controller.

[0089] Install opening detection devices B1 and B2, along with mounting brackets, at the opening monitoring and detection point of the carton sealing machine. Each bracket is equipped with an adjustment block, and each adjustment block is equipped with a photoelectric sensor switch. Figure 4 As shown, each adjustment block is equipped with a transmitting sensor and a receiving sensor, which are arranged adjacent to each other above the tobacco box conveyor belt along the vertical direction of the tobacco box end face. The transmitting and receiving sensors are positioned at a height higher than the standard tobacco box height relative to the conveyor belt. Using diffuse reflection detection, when the tobacco box is not properly sealed, the end face of the tobacco box will naturally tilt upwards, affecting the detection light and triggering the detection. Supports are positioned opposite each other on both sides of the conveyor belt. The adjustment block is a small component mounted on the support, used to fine-tune the position or angle of the photoelectric sensor switch to ensure accurate detection. The adjustment block has a protruding part for manual adjustment, and scales or markings next to it to indicate the adjustment position or angle.

[0090] Figure 5This is the electrical schematic diagram of the cigarette box end opening detection system applicable to this embodiment of the utility model. The positive power lines for detections B1 and B2 are connected to the 24V positive terminal, and the negative power line is connected to the 24V negative terminal. The signal transmission lines are connected to Siemens PLC input points I0.0 and I0.1. PLC input point I0.2 is connected to the YP13 carton sealing machine PLC's outgoing monitoring and detection signal input terminal B7.5 (equivalent to the outgoing monitoring and detection device mentioned above). The PLC output point Q0.0 is connected to the YP13 carton sealing machine's own PLC tape fault signal input terminal.

[0091] When the YP13 carton packing machine is running, Siemens PLC input points I0.0 and I0.1 will collect the 24V high-level signals of the opening detection B1 and opening detection B2 to determine whether there is an opening on the end face of the cigarette box at the cigarette box outlet station.

[0092] After the box pushing and pressing operation is completed, the cigarette box passes the preset exit monitoring and detection point. When the PLC input point I0.2 collects the falling edge signal of the exit monitoring and detection device B7.5, the Siemens PLC internal timer starts. If the PLC input point I0.0 or I0.1 detects a high-level signal within the program-set time, it is determined that the cigarette box has an opening. The PLC output point Q0.0 will send a tape fault signal to the PLC of the YP13 box sealing machine, controlling the box sealing machine to alarm and stop the equipment.

[0093] The cigarette box end opening detection system proposed in this embodiment uses a Siemens PLC input point to collect a 24V high-level signal from the opening detection device to determine whether the cigarette box has an opening at the opening monitoring detection point. After the cigarette box is pushed and pressed and passes the exit monitoring detection, the PLC's internal timer starts. If the opening detection device B1 or B2 detects an opening in the cigarette box within a set time, the PLC output point will send a tape fault signal to the YP13 carton sealing machine's PLC, triggering an alarm and stopping the equipment. By detecting the opening of the cigarette box at the carton sealing machine's outlet in real time, this system avoids the problem of the carton sealing machine's built-in tape detector only being able to detect whether the tape is loose or broken, which was a common issue in previous production processes. It can effectively detect opening faults caused by improperly pasted transparent sealing tape, thus effectively preventing unqualified cigarette boxes from entering the next process and creating quality hazards, and improving the accuracy of opening cigarette box detection. By detecting open cigarette boxes in real time, the system can promptly issue an alarm and stop the machine once an open cigarette box is detected. This prevents the production of a large amount of waste tape due to tangling or poor tape cutting, which not only reduces the waste of raw materials and lowers production costs, but also improves the product qualification rate and overall quality level.

[0094] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in the technical solution disclosed herein comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0095] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0096] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A cigarette box end opening detection system, used to detect the opening of cigarette boxes conveyed on a cigarette box conveyor belt, characterized in that, include: Opening detection device, out-of-box monitoring and detection device and controller; The opening detection device and the box exit monitoring and detection device are electrically connected to the controller respectively; Both the opening detection device and the exit monitoring and detection device are fixedly installed on the workbench where the smoke box conveyor belt is installed. The out-of-box monitoring and detection device is set at the preset out-of-box monitoring and detection point on the workbench. It is used to send an out-of-box signal to the controller when it detects that the cigarette box that has been sealed and pushed has been delivered to the out-of-box monitoring and detection point. The opening detection device is set close to the opening monitoring and detection point and is used to send an opening signal to the controller when it detects that the passing tobacco box is in an open state. The controller is used to determine that the currently conveyed tobacco box is an open tobacco box when an opening signal is detected within a preset time interval after the exit signal is detected.

2. The cigarette box end opening detection system according to claim 1, characterized in that, The outbound monitoring and detection device includes: The system comprises a first support, a second support, a first adjusting block, a second adjusting block, a first transmitting sensor, and a first receiving sensor. The first and second supports are positioned at preset monitoring and detection points on the workbench and are arranged opposite each other on both sides of the conveyor belt. A first adjusting block is mounted on the first support, and a second adjusting block is mounted on the second support. A first transmitting sensor is mounted on the first adjusting block, and a first receiving sensor is mounted on the second adjusting block. The first transmitting sensor and the first receiving sensor are arranged opposite each other on both sides of the conveyor belt via corresponding supports and adjusting blocks, and the height of the first transmitting sensor and the first receiving sensor relative to the conveyor belt is lower than or equal to the height of a standard cigarette box. The first receiving sensor is used to receive the signal sent by the first transmitting sensor on a preset physical path, and when the physical path is blocked by the open tobacco box, it triggers the generation of an exit signal and sends it to the controller.

3. The cigarette box end opening detection system according to claim 1, characterized in that, The mouth opening detection device includes a transceiver sensor group, which includes a transmitting sensor and a receiving sensor. The transmitting sensor and the receiving sensor are arranged adjacent to each other above the tobacco box conveyor belt along the vertical direction of the tobacco box end face through a preset support component, and the height of the transmitting sensor and the receiving sensor relative to the conveyor belt is higher than the height of the standard tobacco box. The transceiver sensor group is used to transmit and receive signals on a preset physical path, and when the physical path is blocked by an open tobacco box, it triggers the generation of an open signal and sends it to the controller.

4. The cigarette box end opening detection system according to claim 2 or 3, characterized in that, Both the transmitting and receiving sensors are photoelectric induction switches.

5. The cigarette box end opening detection system according to claim 3, characterized in that, The support assembly includes a third bracket and a fourth bracket, which are arranged opposite to each other on both sides of the conveyor belt. The third bracket is equipped with a second transmitting sensor and a second receiving sensor, and the fourth bracket is equipped with a third transmitting sensor and a third receiving sensor.

6. The cigarette box end opening detection system according to claim 5, characterized in that, The third support is provided with a third adjustment block, and the fourth support is provided with a fourth adjustment block; the third adjustment block is provided with a second transmitting sensor and a second receiving sensor, and the fourth adjustment block is provided with a third transmitting sensor and a third receiving sensor.

7. The cigarette box end opening detection system according to claim 1, characterized in that, The system also includes an alarm device, which is electrically connected to the controller; The controller is also used to send an alarm signal to the alarm device when it is determined that the currently conveyed tobacco box is an open tobacco box; The alarm device is used to provide audible and visual alarms based on the received alarm signals.

8. The cigarette box end opening detection system according to claim 1, characterized in that, The controller is electrically connected to a preset tape fault signal point on the workbench. Accordingly, the controller is also used to: when it is determined that the currently conveyed cigarette box is an open cigarette box, send a stop signal to a preset tape fault signal point on the workbench to trigger a tape fault alarm and stop the equipment operation.

9. A box-sealing machine for opening detection, characterized in that, The cigarette box end opening detection system includes any one of claims 1-8.

10. The box-sealing machine for opening detection according to claim 9, characterized in that, The box-packing machine is a YP13 box-packing machine.

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