A diagnostic system and method for an inspection device on a magazine conveyor path of a packaging machine

Abstract

The application provides a diagnosis system and method for detection equipment on a conveying channel of a packaging machine mold box, wherein the diagnosis system comprises a controller, empty mold box detection equipment for detecting whether there are cigarettes in the mold box on the conveying channel, and the empty mold box detection equipment is arranged behind a rejection port of the conveying channel; the mold box transverse cigarette disorder detection equipment, the mold box cigarette group filter side blockage detection equipment, the mold box cigarette group filter missing detection equipment, the mold box cigarette group empty head detection equipment and the empty mold box detection equipment are electrically connected with the controller respectively; the controller is electrically connected with a packaging machine control system, and the packaging machine control system is electrically connected with an upper monitoring platform of the packaging machine. The application can better diagnose whether each detection equipment has a fault, and effectively avoid the problems of increased production cost and high product quality risk caused by the fault of the detection equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of tobacco packaging equipment, specifically relating to a diagnostic system and method for a detection device on the mold box conveying channel of a packaging machine. Background Technology

[0002] The GD type packaging machine mainly packages cigarettes into finished cigarette packs and cartons. The cigarettes are conveyed through the lower cigarette channel into cigarette mold boxes (hereinafter referred to as "mold boxes") to form cigarette groups (hereinafter referred to as "cigarette groups"). The cigarette groups are then conveyed forward along the cigarette mold box conveying channel (hereinafter referred to as "conveyor channel"). The detailed conveying process is as follows: Figure 1 As shown, cigarettes are conveyed downwards from the lower cigarette storage in the direction indicated by the second flow arrow 131 to the lower cigarette channel 13. The cigarette pusher 14 moves back and forth in the direction indicated by the movement direction arrow 141, pushing the cigarettes 12 onto the conveyor belt 11 to form a molded cigarette group. On the conveyor channel, there are molded cigarette horizontal disorder detection equipment 15, molded cigarette group filter side blockage detection equipment 16, molded cigarette group missing filter detection equipment 17, and molded cigarette group empty head detection equipment 18. The above detection equipment performs quality inspection on the cigarette group on the conveyor channel. If it is a defective cigarette group, it is rejected online at the rejection port 19 on the conveyor channel in the direction indicated by the rejection flow arrow 191. If it is a qualified cigarette group, it is conveyed forward in the direction indicated by the first flow arrow 121 into the packaging machine first wheel 192 for subsequent packaging.

[0003] However, the testing equipment on the conveying channel only performs functional tests on the cigarette packs at that testing location, without diagnosing whether the testing equipment itself is functioning properly. This can easily lead to malfunctions in the testing equipment, causing the cigarette packs to be mistakenly rejected, resulting in increased production costs. Alternatively, if the testing equipment itself malfunctions and there is no diagnostic monitoring, defective products may enter the market, posing a significant product quality risk.

[0004] Existing technologies only monitor and diagnose the safety interlocks of GD-type packaging machines, and are not applicable to the diagnosis of various detection devices on the cigarette mold box conveying channel of the GD packaging machine. Therefore, how to achieve the diagnosis of various detection devices on the conveying channel, and avoid the problems of increased production costs and greater product quality risks caused by the lack of relevant detection functions due to the failure of various detection devices, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a diagnostic system for a detection device on a packaging machine mold conveying channel, thereby solving the aforementioned technical problems in the prior art. Another purpose of this invention is to provide a diagnostic method.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A diagnostic system for a packaging machine mold box conveying channel includes a controller and an empty mold box detection device. The empty mold box detection device is used to detect whether there are cigarettes in the mold boxes on the conveying channel. The empty mold box detection device is located behind the rejection port of the conveying channel. The mold box horizontal cigarette detection device, the mold box cigarette group filter side blockage detection device, the mold box cigarette group missing filter detection device, the mold box cigarette group empty head detection device, and the empty mold box detection device are all electrically connected to the controller. The controller is electrically connected to the packaging machine control system, and the packaging machine control system is electrically connected to the upper monitoring platform of the packaging machine.

[0008] Preferably, the controller is electrically connected to the packaging machine control system via an optocoupler.

[0009] Preferably, both the controller and the optocoupler are housed inside the electrical cabinet.

[0010] Preferably, the empty mold box detection device is connected to one side of the conveying channel via a mounting bracket.

[0011] Preferably, the empty mold box detection device is located at the next mold box station after the rejection port of the conveying channel.

[0012] A diagnostic method based on the diagnostic system for the detection equipment on the packaging machine mold conveying channel described above, comprising:

[0013] The empty mold box detection equipment, the mold box cigarette group missing filter detection equipment, the mold box cigarette group filter side blockage detection equipment, the mold box horizontal and disordered cigarette detection equipment, and the mold box cigarette group empty head detection equipment respectively transmit the detection result signals to the controller;

[0014] When at least one of the following devices—the cigarette pack missing filter detection device, the cigarette pack filter side blockage detection device, and the cigarette pack horizontal / disordered cigarette detection device—detects a defect in a cigarette pack, if the empty mold box detection device detects a cigarette pack in the mold box, the controller will determine that there is a rejection fault and send a rejection fault signal to the packaging machine control system. The packaging machine control system will then transmit this rejection fault signal to the upper-level monitoring platform, where it will be displayed. If the empty mold box detection device detects that there is no cigarette pack in the mold box, the controller will not send a rejection fault signal to the packaging machine control system.

[0015] If none of the cigarette pack defect detection devices, cigarette pack filter side blockage detection devices, or cigarette pack cross-contamination detection devices detect a defect in the cigarette pack, but the empty mold pack detection device detects no cigarette pack in the mold pack, the controller will determine that there is a device malfunction and send a device malfunction signal to the packaging machine control system. The packaging machine control system will then transmit this device malfunction signal to the upper-level monitoring platform, where it will be displayed. If the empty mold pack detection device detects a cigarette pack in the mold pack, the controller will not send a device malfunction signal to the packaging machine control system.

[0016] Preferably, when the empty cigarette detection device detects an empty cigarette in the cigarette pack, if the empty mold box detection device detects no cigarette pack in the mold box, the controller will determine that there is a device fault and send a second device fault signal to the packaging machine control system, and at the same time display the fault information through the upper monitoring platform; if the empty mold box detection device detects a cigarette pack in the mold box, the controller will not send a second device fault signal to the packaging machine control system.

[0017] Preferably, when the empty cigarette detection device in the mold box does not detect an empty cigarette in the cigarette group, if the empty mold box detection device detects that there is no cigarette group in the mold box, the controller will determine that there is a device fault and send a second device fault signal to the packaging machine control system, and at the same time display the fault information through the upper monitoring platform; if the empty mold box detection device detects that there is a cigarette group in the mold box, the controller will not send a second device fault signal to the packaging machine control system.

[0018] Preferably, while the controller sends a second equipment fault signal to the packaging machine control system, the controller calculates the number of steps from the current workstation to the next rejection port of the packaging machine and counts the steps. When the calculated number of steps is reached, the controller sends a rejection signal to the packaging machine control system to reject the cigarette pack in the mold box at the next rejection port.

[0019] Preferably, the packaging machine stops supplying auxiliary materials to the mold box while the controller is counting the steps.

[0020] The beneficial effects of this invention are as follows:

[0021] The present invention relates to a diagnostic system and method for detection equipment on the packaging machine mold box conveying channel. Its controller can analyze and judge the detection result signals transmitted from the empty mold box detection equipment, the mold box cigarette group filter missing tip detection equipment, the mold box cigarette group filter side blockage detection equipment, the mold box horizontal cigarette disorder detection equipment, and the mold box cigarette group empty head detection equipment. This allows for better diagnosis of whether any detection equipment is faulty. The fault information is displayed on the upper-level monitoring platform through the packaging machine control system, enabling staff to promptly detect equipment malfunctions. This effectively avoids increased production costs and significant product quality risks caused by the lack of relevant detection functions due to equipment failure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0023] Figure 1 This is a schematic diagram of the cigarette conveying process in an existing packaging machine.

[0024] Figure 2 This is a schematic diagram showing the installation location of the empty mold box detection device provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of a diagnostic system for a testing device on a packaging machine mold conveying channel, provided in an embodiment of the present invention.

[0026] Marked in the attached diagram:

[0027] 11. Conveyor belt; 12. Cigarette stick; 121. First flow direction arrow; 13. Lower smoke duct.

[0028] 131. Second flow direction arrow; 14. Smoke exhaust; 141. Movement direction arrow.

[0029] 15. Equipment for detecting cross-contamination and disordered cigarette smoke in molded cigarette boxes; 16. Equipment for detecting filter clogging in molded cigarette sets.

[0030] 17. Equipment for detecting missing filters in molded cigarette packs; 18. Equipment for detecting empty ends in molded cigarette packs.

[0031] 19. Removal port; 191. Removal flow direction arrow; 192. Packaging machine round 1;

[0032] 21. Removal port; 22. Packaging machine (one wheel); 31. Empty mold box inspection equipment. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present solution will be further described in detail below with reference to specific embodiments.

[0034] like Figure 2 and Figure 3 As shown, this embodiment of the invention provides a diagnostic system for a detection device on a packaging machine mold box conveying channel. The system includes a controller and an empty mold box detection device 31. The empty mold box detection device 31 is used to detect whether cigarettes are present in the mold boxes on the conveying channel. The empty mold box detection device is located behind the rejection port 21 of the conveying channel. The mold box horizontal cigarette detection device, the mold box cigarette group filter side blockage detection device, the mold box cigarette group missing filter detection device, the mold box cigarette group empty head detection device, and the empty mold box detection device 31 are all electrically connected to the controller. The controller is electrically connected to the packaging machine control system, and the packaging machine control system is electrically connected to the upper-level monitoring platform of the packaging machine.

[0035] The diagnostic system for the detection equipment on the packaging machine mold box conveying channel provided in this embodiment of the invention has a controller that can judge and analyze the detection result signals transmitted from the empty mold box detection device 31, the mold box cigarette group missing filter detection device, the mold box cigarette group filter side blockage detection device, the mold box horizontal cigarette disorder detection device, and the mold box cigarette group empty head detection device. In this way, it can better diagnose whether there is a fault in the detection equipment, and display the fault information on the upper monitoring platform through the packaging machine control system. This allows the staff to discover the fault in the detection equipment in a timely manner through the upper monitoring platform, thereby effectively avoiding the problem of increased production costs and greater product quality risks caused by the lack of relevant detection functions due to the failure of various detection equipment.

[0036] Understandably, the cigarette pack filter missing detection device is used to detect whether the cigarette pack in the mold box is missing a filter, i.e., whether there is a filter missing defect; the cigarette pack filter side blockage detection device is used to detect whether there is a filter blockage defect in the cigarette pack; the cigarette pack horizontal and disorderly smoke detection device is used to detect whether there is horizontal and disorderly smoke in the cigarette pack in the mold box; the cigarette pack empty head detection device is used to detect whether there is an empty head defect in the cigarette pack in the mold box; the empty mold box detection device is set behind the rejection port of the conveying channel, that is, in the conveying direction of the mold box, the empty mold box detection device is located downstream of rejection port 21.

[0037] Furthermore, the controller is electrically connected to the packaging machine control system via an optocoupler.

[0038] Preferably, both the controller and the optocoupler are housed inside the electrical cabinet.

[0039] Furthermore, the empty mold box detection device 31 is connected to one side of the conveying channel via a mounting bracket.

[0040] Specifically, the empty mold box detection device 31 is located at the next mold box station after the rejection port of the conveying channel.

[0041] Preferably, the empty mold box detection device 31 is a photoelectric detector, such as a photoelectric detection switch. The controller can be equipped with a high-speed module to process the signal output by the photoelectric detection switch at high speed, ensuring that the signal output by the photoelectric switch can be transmitted to the controller at high speed and stably.

[0042] This invention also provides a diagnostic method based on the diagnostic system for the detection equipment on the packaging machine mold box conveying channel described above, comprising:

[0043] The empty mold box detection equipment, the mold box cigarette group missing filter detection equipment, the mold box cigarette group filter side blockage detection equipment, the mold box horizontal and disordered cigarette detection equipment, and the mold box cigarette group empty head detection equipment respectively transmit the detection result signals to the controller;

[0044] When at least one of the following devices detects a defect in a cigarette pack: a filter-missing cigarette pack detection device, a filter-side blockage detection device, or a horizontal / disordered cigarette pack detection device, if the empty mold box detection device detects a cigarette pack in the mold box, the controller will determine that there is a rejection fault. The controller will send a rejection fault signal to the packaging machine control system, which will then transmit the rejection fault signal to the upper-level monitoring platform and display it on the platform as "Rejection mechanism fault: Rejection failed". If the empty mold box detection device detects that there is no cigarette pack in the mold box, the controller will not send a rejection fault signal to the packaging machine control system.

[0045] If none of the three detection devices—the missing filter detection device, the filter side blockage detection device, and the horizontal / disordered cigarette detection device—detects a defect in the cigarette pack, but the empty box detection device detects no cigarette pack in the box, the controller will determine that there is a device malfunction and send a device malfunction signal 1 to the packaging machine control system. The packaging machine control system will then transmit this device malfunction signal 1 to the upper-level monitoring platform, where it will be displayed as "Detection Device Malfunction 1." This indicates that at least one of the three detection devices—the missing filter detection device, the filter side blockage detection device, and the horizontal / disordered cigarette detection device—has malfunctioned, and staff need to inspect each of the three devices to troubleshoot the problem. If the empty box detection device detects a cigarette pack in the box, the controller will not send a device malfunction signal 1 to the packaging machine control system. In one embodiment, in order to facilitate the identification of which one or two of the three detection devices malfunctioned, the detection result signals transmitted to the controller by the molded cigarette pack missing filter detection device, the molded cigarette pack filter side blockage detection device, and the molded cigarette pack horizontal and disordered cigarette detection device can be numbered.

[0046] The diagnostic method provided in this embodiment of the invention also has the above-mentioned technical effects of the diagnostic system.

[0047] Furthermore, the diagnostic method also includes: when the empty cigarette detection device in the molded box detects an empty cigarette in the cigarette group, if the empty molded box detection device detects no cigarette group in the molded box, the controller will determine that there is a device fault and send a second device fault signal to the packaging machine control system. At the same time, the fault information will be displayed on the upper monitoring platform. The displayed content can be "Detection device fault two", indicating that the empty cigarette detection device in the molded box has malfunctioned and needs to be repaired; if the empty molded box detection device detects a cigarette group in the molded box, the controller will not send a second device fault signal to the packaging machine control system.

[0048] Specifically, the diagnostic method also includes: when the empty cigarette detection device for the cigarette pack in the mold box does not detect an empty cigarette in the cigarette pack, if the empty mold box detection device detects no cigarette pack in the mold box, the controller will determine that there is a device malfunction and send a second device malfunction signal to the packaging machine control system. At the same time, the fault information will be displayed on the upper monitoring platform. The displayed content can be "Detection device malfunction two", indicating that the empty cigarette detection device for the cigarette pack in the mold box has malfunctioned and needs to be repaired; if the empty mold box detection device detects a cigarette pack in the mold box, the controller will not send a second device malfunction signal to the packaging machine control system.

[0049] It should be noted that regardless of whether the cigarette pack has a hollow head defect, that is, regardless of whether the hollow head detection equipment of the cigarette pack in the mold box detects a hollow head defect, the cigarette pack should continue to be conveyed forward in the conveying direction on the conveying channel. This is because cigarette packs with this kind of defect are not rejected at rejection port 21 on the conveying channel, but should be rejected at the next rejection port.

[0050] Furthermore, the diagnostic method also includes: while the controller sends a second equipment fault signal to the packaging machine control system, the controller calculates the number of steps from the current station to the next rejection port of the packaging machine and counts the steps. When the calculated number of steps is reached, the controller sends a rejection signal to the packaging machine control system to reject the cigarette pack in the mold box at the next rejection port, thereby enabling the rejection of cigarette packs with empty head defects.

[0051] Specifically, while the controller is counting steps, the packaging machine stops supplying auxiliary materials to the mold box containing the defective cigarette pack, thereby effectively saving auxiliary materials and reducing production costs.

[0052] This invention uses a controller to collect the detection result signals of each testing device, and then displays the detection results of each testing device on a higher-level monitoring platform through the packaging machine control system. This allows staff to monitor the status of each testing device on the conveyor channel from the higher-level monitoring platform. At the same time, the higher-level monitoring platform can not only monitor the status of each testing device on the conveyor channel, but also perform equipment anomaly statistics and queries, equipment anomaly early warning display, and control the opening / closing of the detection functions of each testing device. The opening / closing of the detection functions of each testing device can be achieved by setting parameters and transmitting them to the controller through the packaging machine control system.

[0053] This invention enables visualized monitoring and early warning of the status of each testing device on the conveyor channel through a higher-level monitoring platform. (When the controller analyzes and determines that the testing device is faulty, it indicates that the testing device itself has a risk of failure. If the fault occurs three times consecutively, an upper-level warning is issued to remind staff to replace or repair the testing device in a timely manner.) This reduces the failure rate of each testing device on the conveyor channel and improves the supervision of the testing equipment. The controller can have a diagnostic and early warning module, which designs the logic for judging based on the output signals of each testing device, the signal status judgment analysis, and the design of early warning logic. This invention can also use the controller to count the defects caused by the faults of each testing device on the conveyor channel, thereby improving the defect classification and statistical function of the packaging machine.

[0054] This invention enables the monitoring and diagnosis of various detection devices on the cigarette pack conveyor channel of a packaging machine, improving the effectiveness and accuracy of these devices and thus increasing the machine's operating efficiency and reducing downtime. Furthermore, by monitoring the status of each detection device on the conveyor channel, this invention allows operators to easily understand their operational status, reducing downtime caused by device malfunctions and ultimately improving the machine's production efficiency.

[0055] The above are merely preferred embodiments of the present invention. It should be noted that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Moreover, after reading the contents of the present invention, those skilled in the art can make various modifications or alterations to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A diagnostic method for a diagnostic system used in a detection device on a packaging machine mold box conveying channel, characterized in that, The diagnostic system includes a controller and an empty mold box detection device. The empty mold box detection device is used to detect whether there are cigarette packs inside the mold boxes on the conveying channel. The empty mold box detection device is located behind the rejection port of the conveying channel. The mold box cross-smoke and disordered cigarette detection device, the mold box cigarette pack filter side blockage detection device, the mold box cigarette pack missing filter detection device, the mold box cigarette pack empty head detection device, and the empty mold box detection device are all electrically connected to the controller. The controller is electrically connected to the packaging machine control system, and the packaging machine control system is electrically connected to the upper-level monitoring platform of the packaging machine. The diagnostic method includes: The empty mold box detection equipment, the mold box cigarette group missing filter detection equipment, the mold box cigarette group filter side blockage detection equipment, the mold box horizontal and disordered cigarette detection equipment, and the mold box cigarette group empty head detection equipment respectively transmit the detection result signals to the controller. If at least one of the following devices detects a defect in a cigarette pack: a cigarette pack filter missing device, a cigarette pack filter side blockage device, or a cigarette pack horizontal / disordered cigarette detection device, and the empty mold box detection device detects a cigarette pack in the mold box, the controller will determine that there is a rejection fault. The controller will send a rejection fault signal to the packaging machine control system, which will then transmit the rejection fault signal to the upper monitoring platform and display it on the upper monitoring platform. If the empty mold box detection equipment detects that there are no cigarette packs in the mold box, the controller will not send a rejection fault signal to the packaging machine control system. If none of the cigarette pack defect detection devices, cigarette pack filter side blockage detection devices, or cigarette pack cross-contamination detection devices detect a defect in the cigarette pack, but the empty mold pack detection device detects no cigarette pack in the mold pack, the controller will determine that there is a device malfunction and send a device malfunction signal to the packaging machine control system. The packaging machine control system will then transmit this device malfunction signal to the upper-level monitoring platform, where it will be displayed. If the empty mold pack detection device detects a cigarette pack in the mold pack, the controller will not send a device malfunction signal to the packaging machine control system.

2. The diagnostic method according to claim 1, characterized in that, When the empty cigarette detection device in the mold box detects an empty cigarette in the cigarette pack, if the empty mold box detection device detects no cigarette pack in the mold box, the controller will determine that there is a device fault and send a second device fault signal to the packaging machine control system, and at the same time display the fault information through the upper monitoring platform; if the empty mold box detection device detects a cigarette pack in the mold box, the controller will not send a second device fault signal to the packaging machine control system.

3. The diagnostic method according to claim 1, characterized in that, If the empty cigarette detection device in the mold box does not detect an empty cigarette in the cigarette pack, but the empty mold box detection device detects no cigarette pack in the mold box, the controller will determine that there is a device fault and send a second device fault signal to the packaging machine control system. At the same time, the fault information will be displayed on the upper monitoring platform. If the empty mold box detection device detects a cigarette pack in the mold box, the controller will not send a second device fault signal to the packaging machine control system.

4. The diagnostic method according to claim 2 or 3, characterized in that, While the controller sends a second equipment fault signal to the packaging machine control system, the controller calculates the number of steps from the current workstation to the next rejection port of the packaging machine and counts the steps. When the calculated number of steps is reached, the controller sends a rejection signal to the packaging machine control system to reject the cigarette pack in the mold box at the next rejection port.

5. The diagnostic method according to claim 4, characterized in that, While the controller is counting steps, the packaging machine stops supplying auxiliary materials to the mold.

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