Detection device for cross-production-line full-tray cigarette mixing and mistaking
By using position adjustment devices and RFID readers in cross-production lines, the problem of insufficient identification accuracy of cigarette trays in different production lines by RFID systems has been solved, achieving accurate identification and control of cigarette brands and ensuring cigarette quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUCHANG TOBACCO MACHINERY
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-17
Smart Images
Figure CN224137716U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cigarette brand and specification detection device, specifically, a detection device for detecting mixed brands of cigarettes across production lines. Background Technology
[0002] The disc-type cigarette storage and conveyor unit flexibly connects the cigarette making machine and the packaging machine. When the speeds of the cigarette making machine and the packaging machine are matched, it serves to transport cigarettes; when the speeds are mismatched, it serves to store and replenish cigarettes, enabling high-speed automation of the cigarette and packaging production line. Specifically, when the speed of the cigarette making machine is greater than that of the packaging machine, excess cigarettes on the conveyor channel are loaded into plastic cigarette trays by a tray loading machine, and then the full trays are manually placed onto a full tray turnover trolley. When the packaging machine speed is high, the full trays are placed onto an unloading machine by manual labor or a robotic arm to replenish the cigarettes.
[0003] In actual production, the cigarette rolling production line may experience production stoppages due to malfunctions in either the upstream cigarette rolling machine or the downstream packaging machine. If the packaging machine malfunctions and the downtime for repair is too long, while the cigarette rolling machine is operating normally, the materials on the cigarette rolling machine need to be produced completely. In order to avoid waste, all unpackaged cigarettes need to be trayed and transferred to other production lines of the same brand and specifications for packaging. If the cigarette rolling machine malfunctions and the downtime for repair is too long, while the packaging machine is operating normally, cigarettes of the same brand and specifications produced on other production lines can be packaged on this production line, thereby ensuring the overall output.
[0004] Because of cross-production line scenarios, errors can occur during manual transfer, potentially transporting trays of cigarettes of different brands but similar appearances to other production lines, resulting in mislabeled or mixed-brand finished cigarettes. Furthermore, if trays of cigarettes on turntables are left unpackaged for too long, they are prone to flavor and moisture loss, affecting cigarette quality. Based on these two situations, certain testing methods are needed to ensure cigarette quality and prevent major quality incidents.
[0005] CN216493455U provides a system for temporarily storing cigarettes. It can identify the brand of cigarettes through an RFID system and a PLC control system. However, this system is mainly designed for the loading and unloading machines on the same production line. When applied to cross-production line scenarios, the height of the cigarette trays or conveying devices on different production lines is different, which affects the distance between the RFID reader and the cigarette tray, and thus affects the reading and writing accuracy of the RFID reader.
[0006] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention
[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a detection device for mismatched cigarette brands across production lines.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a detection device for mixing incorrect brands of cigarettes across production lines, comprising:
[0009] The electronic tags set on the cigarette trays each have a unique electronic code;
[0010] The first RFID reader is installed at the full-tray output device of the tray loading machine in production line A by a position adjustment device. The first RFID reader is connected to the PLC of the tray loading machine and is used to obtain tray loading information from the PLC of the tray loading machine and write it into the electronic tag of the cigarette tray.
[0011] A second RFID reader is installed at the tray stopper of the unloading machine in production line B via a position adjustment device. The second RFID reader is connected to the PLC of the unloading machine and is used to read the tray loading information in the electronic tag of the cigarette tray and send it to the PLC of the unloading machine.
[0012] The PLC of the unloading machine is connected to the unloading machine's tray stopper and is used to control the action of the unloading machine's tray stopper based on the read tray loading information.
[0013] Specifically, the position adjustment device includes a fixed base, a horizontal adjustment unit connected to the fixed base, and a vertical adjustment unit installed on the horizontal adjustment unit. The first RFID reader and the second RFID reader are both located on the vertical adjustment unit.
[0014] Specifically, the horizontal adjustment unit includes a horizontally arranged guide rail, a slider sleeved on the guide rail and capable of moving horizontally relative to the guide rail, and the slider is also fixed to a fixed base via a connecting shaft.
[0015] Specifically, the vertical adjustment unit includes a fixed plate and a sliding rod, with a first RFID reader or a second RFID reader installed in the middle of the fixed plate;
[0016] Vertical guide grooves are provided on both sides of the fixing plate;
[0017] One end of the slide rod is fixed to the fixed plate by passing through the guide groove with screws, and the other end is installed vertically on both sides of the guide rail.
[0018] Specifically, the full-tray output device of the tray loading machine in production line A is also equipped with a first smoke tray position switch. The first smoke tray position switch and the first RFID reader are located on the same position adjustment device, which is used to trigger the first RFID reader to write the tray loading information when the smoke tray is in position.
[0019] A second smoke tray positioning switch is also installed at the tray blocker of the unloading machine in production line B. The second smoke tray positioning switch and the second RFID reader are located on the same position adjustment device, which is used to trigger the second RFID reader to read the tray loading information when the smoke tray is in position.
[0020] This utility model has substantial features and progress compared with the prior art. Specifically, this utility model is equipped with a position adjustment device, and the RFID reader is installed on the position adjustment device. The position of the RFID reader is adjusted by adjusting the horizontal and vertical positions of the position adjustment device, so that different RFID readers are adapted to the position and height of the cigarette tray.
[0021] Furthermore, this utility model is equipped with a full tray positioning photoelectric switch on each RFID reader fixing device to detect whether the full tray of cigarettes is in place, so as to ensure that the information can be accurately and timely read or written to the electronic tag on the cigarette tray by the reader. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the principle of Embodiment 1 of this utility model.
[0023] Figure 2 This is the usage process of Embodiment 1 of this utility model.
[0024] Figure 3 This is a schematic diagram of the tray loading machine in Embodiment 1 of this utility model.
[0025] Figure 4 This is a schematic diagram of the unloading machine in Embodiment 1 of this utility model.
[0026] Figure 5 This is a schematic diagram of the position adjustment device described in Embodiment 1 of this utility model.
[0027] Figure 6 This is a schematic diagram of the installation of the photoelectric switch described in Embodiment 2 of this utility model.
[0028] In the diagram: 1. Robotic arm; 2. Tray stopper; 3. Conveyor belt; 4. First RFID reader / writer; 5. Tilting device; 6. Lifting device; 7. Full tray input device; 8. Empty tray output device; 9. Material storage; 10. Unloading machine PLC; 11. Second RFID reader / writer; 12. Fixed base; 13. Connecting shaft; 14. Slider; 15. Guide rail; 16. Fixed plate; 17. Sliding rod; 18. Guide groove; 19. Photoelectric switch. Detailed Implementation
[0029] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0030] Example 1
[0031] This embodiment provides a detection device for detecting mixed brands of cigarettes across a production line, such as... Figure 1 and Figure 2 As shown, it includes:
[0032] The electronic tags installed on the cigarette trays each have a unique electronic code used to verify the identity of the electronic tag.
[0033] A first RFID reader 4, installed at the full-tray output device of the tray loading machine on production line A via a position adjustment device, communicates with the tray loading machine's PLC. This reader retrieves tray loading information from the PLC and writes it to the electronic tag on the cigarette tray. Specifically, the tray loading information includes the tray number (two digits), production line number (two digits), brand number (two digits), action type (tray loading or unloading, two digits), and time: year, month, day, hour, and minute. Example: 0112010112171530. Here, 01 represents tray number 1; 12 represents production line number 12; 01 represents the cigarette brand; and 01 represents tray loading. For example, 12171530 represents December 17th at 3:30 PM.
[0034] Specifically, such as Figure 3 As shown, the tray loading machine of production line A includes, in addition to the first RFID reader / writer 4, a robotic arm 1, a tray stopper 2, a conveyor belt 3, and a tray loading machine PLC. Figure 3 Not displayed.
[0035] Before use, the production line number and brand number can be configured in advance on the "Settings" page of the human-machine interface system of the disc cigarette storage and conveying device. The production line number, cigarette brand, and full disc output time can be written into the PLC of the loading machine in the human-machine interface of the loading machine and set in advance.
[0036] The second RFID reader 11 is installed at the tray blocker 2 of the unloading machine in production line B via a position adjustment device. The second RFID reader 11 is connected to the unloading machine PLC and is used to read the tray loading information in the electronic tag of the cigarette tray and send it to the unloading machine PLC 10.
[0037] The PLC of the unloading machine is connected to the unloading machine's tray stopper and is used to control the action of the unloading machine's tray stopper based on the read tray loading information.
[0038] Specifically, such as Figure 4As shown, the unloading machine of production line B includes a second RFID reader 11, a flipping device 5, a lifting device 6, a full tray input device 7, an empty tray output device 8, a material storage 9, and an unloading machine PLC 10. The tray blocker 2 of the unloading machine is set at the full tray input device 7 to prevent the tray from being conveyed to the unloading machine. It can be understood that the unloading machine PLC 10 is connected to the flipping device 5 and the lifting device 6 respectively.
[0039] In one specific implementation, the unloading machine PLC 10 reads the information (production line number, cigarette brand, and full-disc output time) from the electronic tags of the full cigarette trays via the second RFID reader 11 and compares it with the information of this production line:
[0040] If the interval is within the set range and the brands are the same, unloading is allowed; otherwise, the conveying of full cigarette trays to the unloading machine is prevented, the unloading machine issues an alarm and stops operating, unloading is prohibited, and an alarm message is displayed: "Cigarette brands are inconsistent, brand number is incorrect [production line number, brand number]!" or "Cigarette packing interval exceeds time, affecting quality [production line number]!" Simultaneously, the information about this mismixed tray is recorded in the human-machine interface system. After manual handling, the unloading machine is restarted to continue production.
[0041] Specifically, the position adjustment device includes a fixed base 12, a horizontal adjustment unit connected to the fixed base 12, and a vertical adjustment unit installed on the horizontal adjustment unit. The first RFID reader 4 and the second RFID reader 11 are both located on the vertical adjustment unit.
[0042] In use, the mounting base 12 is installed at the full tray output device of the tray loading machine in production line A, or at the tray blocker 2 of the unloading machine in production line B. Then, the first RFID reader 4 or the second RFID reader 11 is installed on the mounting base 12. Finally, the horizontal adjustment unit or the vertical adjustment unit is adjusted according to the height and horizontal position of the corresponding tobacco tray to change the horizontal and vertical positions of the mounting base 12, so that the first RFID reader 4 or the second RFID reader 11 is facing the electronic tag on the tobacco tray, thereby improving the accuracy of RFID reading and writing of the electronic tag on the tobacco tray.
[0043] Specifically, such as Figure 5 As shown, the horizontal adjustment unit includes a horizontally arranged guide rail 15 and a slider 14 sleeved on the guide rail 15 and capable of moving horizontally relative to the guide rail. The slider 14 is also fixed to the fixed base 12 via a connecting shaft 13.
[0044] Specifically, the vertical adjustment unit includes a fixed plate 16 and a sliding rod 17, with a first RFID reader 4 or a second RFID reader 11 installed in the middle of the fixed plate 16;
[0045] Vertical guide grooves 18 are provided on both sides of the fixing plate 16;
[0046] One end of the slide rod 17 passes through the guide groove 18 with a screw and is fixed to the fixing plate 16 with a nut, while the other end is vertically installed on both sides of the guide rail 15.
[0047] It is understandable that the length direction of the guide groove 18 is perpendicular to the moving direction of the slide rod 17.
[0048] It is understandable that, since the fixed seat 12 is installed at the full tray output device of the tray loading machine, or at the tray blocker 2 of the tray unloading machine, the horizontal position of the slider on the guide rail 15 is changed by moving the guide rail 15, thereby adjusting the horizontal position of the fixed plate 16 of the vertical adjustment unit relative to the fixed seat 13; then, after loosening the nut and moving the slide rod 17 up and down, the slide rod 17 is fixed to the fixed plate 16 by screws and nuts, thereby adjusting the vertical position of the fixed plate 16. By adjusting the horizontal and vertical positions, the accuracy of RFID reading and writing electronic tags on the cigarette tray is improved.
[0049] Example 2
[0050] The difference between this embodiment and embodiment 1 is that: a first smoke tray position switch is also provided at the full tray output device of the tray loading machine. The first smoke tray position switch and the first RFID reader 4 are located on the same position adjustment device, which is used to trigger the first RFID reader 4 to write the tray loading information when the smoke tray is in position.
[0051] The unloading machine's tray stopper 2 is also equipped with a second smoke tray position switch. The second smoke tray position switch and the second RFID reader 11 are located on the same position adjustment device, which is used to trigger the second RFID reader 11 to read the tray loading information when the smoke tray is in position.
[0052] This embodiment uses a cigarette tray positioning switch on each RFID reader mounting device to detect whether the cigarette tray is full, ensuring that information can be accurately and promptly read or written to the electronic tag on the cigarette tray by the RFID reader.
[0053] In one possible embodiment, both the first smoke tray positioning switch and the second smoke tray positioning switch are photoelectric switches 19, such as... Figure 6 As shown, these are all infrared photoelectric switches. They utilize the principle of reflection of near-infrared light beams by objects. A synchronous circuit senses the intensity of the reflected light to detect the presence or absence of an object. The photoelectric sensor first emits an infrared beam that reaches or passes through an object or mirror, reflecting the beam. The photoelectric sensor then receives the reflected beam and determines the presence of the object based on its intensity. There are many types of infrared photoelectric switches, generally including specular reflection, diffuse reflection, slotted, through-beam, and fiber optic switches. The specific type is selected based on the application.
[0054] In one possible embodiment, both the first and second smoke tray position switches are laser sensors. Specifically, the laser sensor is located on either side of the unloading or loading machine to detect whether the conveyed smoke tray has been delivered to the correct position. A reflector is located on the other side of the unloading or loading machine, corresponding to the laser sensor, to cooperate with the laser sensor for light reflection.
[0055] Specifically, the light signal emitted by the laser sensor shines on the reflector, and the laser sensor then receives the signal reflected back from the reflector, thus determining that the smoke tray has not been delivered in place. However, when the smoke tray is delivered in place, its position blocks the light signal, so the laser sensor cannot receive the feedback signal.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A detection device for detecting mixed brand across the line full carton of cigarettes, characterized in that, include: The electronic tags set on the cigarette trays each have a unique electronic code; The first RFID reader is installed at the full-tray output device of the tray loading machine in production line A by a position adjustment device. The first RFID reader is connected to the PLC of the tray loading machine and is used to obtain tray loading information from the PLC of the tray loading machine and write it into the electronic tag of the cigarette tray. A second RFID reader is installed at the tray stopper of the unloading machine in production line B via a position adjustment device. The second RFID reader is connected to the PLC of the unloading machine and is used to read the tray loading information in the electronic tag of the cigarette tray and send it to the PLC of the unloading machine. The PLC of the unloading machine is connected to the unloading machine's tray stopper and is used to control the action of the unloading machine's tray stopper based on the read tray loading information.
2. The device for detecting mixed wrong brand of full carton cigarettes across production lines according to claim 1, characterized in that: The position adjustment device includes a fixed base, a horizontal adjustment unit connected to the fixed base, and a vertical adjustment unit installed on the horizontal adjustment unit. The first RFID reader and the second RFID reader are both located on the vertical adjustment unit.
3. The device for detecting mixed wrong brand of full carton cigarettes across production lines according to claim 2, characterized in that: The horizontal adjustment unit includes a horizontally arranged guide rail, a slider sleeved on the guide rail and capable of moving horizontally relative to the guide rail, and the slider is also fixed to a fixed base via a connecting shaft.
4. The device for detecting mixed wrong brand of full carton cigarettes across production lines according to claim 3, characterized in that: The vertical adjustment unit includes a fixed plate and a sliding rod, with a first RFID reader or a second RFID reader installed in the middle of the fixed plate; Vertical guide grooves are provided on both sides of the fixing plate; One end of the slide rod is fixed to the fixed plate by passing through the guide groove with screws, and the other end is installed vertically on both sides of the guide rail.
5. The detection device for detecting mixed brands of cigarettes across production lines according to any one of claims 1-4, characterized in that: The full-tray output device of the tray loading machine in production line A is also equipped with a first smoke tray position switch. The first smoke tray position switch and the first RFID reader are located on the same position adjustment device, which is used to trigger the first RFID reader to write the tray loading information when the smoke tray is in position. A second smoke tray positioning switch is also installed at the tray blocker of the unloading machine in production line B. The second smoke tray positioning switch and the second RFID reader are located on the same position adjustment device, which is used to trigger the second RFID reader to read the tray loading information when the smoke tray is in position.
6. The detection device for detecting mixed brands of cigarettes across production lines as described in claim 5, characterized in that: Both the first and second smoke tray position switches are photoelectric switches.
7. The device for detecting mixed wrong brand of full carton cigarettes across production lines according to claim 5, characterized in that: Both the first and second smoke tray position switches are laser sensors.