Cigarette queue management device

Abstract

The utility model relates to cigarette packer technical field discloses a piece cigarette queue management device, is arranged in the bar code detection work position front end of piece cigarette conveying line, including for piece cigarette jacking to separate piece cigarette conveying line's jacking mechanism, the queue interval management module for detecting the interval between piece cigarettes and controller, the jacking mechanism includes the supporting plate of initial height lower than the conveying surface of piece cigarette conveying line, the supporting plate bottom is equipped with the pneumatic cylinder for jacking the supporting plate and is equipped with solenoid valve for controlling the start -stop of pneumatic cylinder, the queue interval management module includes the first sensor and second sensor that set up in proper order along piece cigarette conveying line material conveying direction, and the first sensor and second sensor between preset interval, the preset interval is greater than the length of single piece cigarette. Solve the problem that conveying line can not effectively adjust piece cigarette interval in the prior art, lead to the problem that the rejecting device appears false rejection, influence the accuracy of rejecting device.

Description

Technical Field

[0001] This utility model relates to the field of cigarette packaging machine technology, and in particular to a cigarette pack queue management device. Background Technology

[0002] The tobacco industry has begun to fully adopt "box-carton-package" linkage technology to improve the tracking and verification capabilities of cigarettes. When consumers purchase cigarettes, they can scan the QR codes on the box, carton, and package to monitor the entire production process in real time, including raw material procurement, manufacturing, transportation, storage, and finally, the product reaches the consumer.

[0003] When an error occurs in the barcode detection station of the cigarette pack conveyor, the pack of cigarettes needs to be rejected in real time at the rejection station. However, the current cigarette pack conveyor line always has a "following cigarette" phenomenon during the cigarette pack conveying process (that is, the interval between two packs of cigarettes is very close and they collide). Since the existing conveyor line cannot effectively adjust the cigarette pack interval, the rejection device will make false rejections, affecting the accuracy of the rejection device and even affecting the overall production line efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a cigarette pack queue management device to solve the problem in the prior art that the conveyor line cannot effectively adjust the cigarette pack interval, which leads to the rejection device making incorrect rejections and affecting the accuracy of the rejection device.

[0005] This utility model solves the above-mentioned technical problems through the following technical means: a cigarette pack queue management device, which is set at the front end of the barcode detection station of the cigarette pack conveyor line, includes a lifting mechanism for lifting cigarette packs to remove them from the cigarette pack conveyor line, a queue spacing management module for detecting the spacing between cigarette packs, and a controller; the lifting mechanism includes a pallet with an initial height lower than the conveying surface of the cigarette pack conveyor line, and a cylinder for lifting the pallet and a solenoid valve for controlling the start and stop of the cylinder are provided at the bottom of the pallet;

[0006] The queue spacing management module includes a first sensor and a second sensor arranged sequentially along the material conveying direction of the cigarette pack conveyor line. The preset spacing between the first sensor and the second sensor is greater than the length of a single cigarette pack. The lifting mechanism is located between the first sensor and the second sensor. The first sensor, the second sensor, and the solenoid valve are all connected to the controller via signals.

[0007] Optionally, the pallet is provided with a plurality of friction plates, which are arranged parallel to each other and spaced apart along the material conveying direction. When the pallet is lifted, it ensures that the material has sufficient static friction.

[0008] Optionally, the friction plate is a polyurethane plate.

[0009] Optionally, both the first and second sensors are photoelectric sensors. The position of the cigarette is determined by the photoelectric sensors.

[0010] Optionally, the preset spacing is 60cm. The preset spacing is slightly larger than the length of a single cigarette.

[0011] Optionally, a return spring assembly and a one-way hydraulic damper are connected in parallel at the bottom of the support plate and the cylinder. The piston rod of the one-way hydraulic damper is connected to the bottom of the support plate. The return spring assembly includes an inner spring and an outer spring, symmetrically distributed on both sides of the one-way hydraulic damper. When the cylinder lifts, it pushes the support plate upward, and the damper generates damping force through the throttling orifice to suppress the impact. When the lifting mechanism resets, the cylinder depressurizes, the spring assembly pushes the support plate downward, and the one-way valve inside the damper fully opens, making the resistance negligible and achieving rapid reset.

[0012] Optionally, the stiffness of the inner spring is greater than that of the outer spring. When the cylinder is started, the inner spring compresses first, responding quickly to the lifting demand; when the pallet rises to 1 / 3 of its stroke, the outer spring begins to compress, reducing the lifting acceleration and avoiding sudden changes in impact force. After the cylinder is depressurized, the outer spring extends first to provide reset assistance, and the inner spring then releases residual energy to ensure a smooth descent of the pallet.

[0013] The beneficial effects of this utility model are:

[0014] This invention addresses the issue of adjustable cigarette pack spacing in existing technologies by installing a cigarette pack queue management device at the front end of the barcode detection station on the cigarette pack conveyor line. When the distance between two cigarette packs is less than a preset value, a lifting mechanism lifts the next cigarette pack, detaching it from the conveyor line. The next cigarette pack is then returned to the conveyor line after the previous one passes the second sensor, ensuring the distance between two cigarette packs is not less than the preset value. This significantly improves the accuracy of the rejection device, reduces false rejections, and enhances the overall production line efficiency. Furthermore, the addition of a parallel one-way hydraulic damper and spring assembly at the bottom of the pallet effectively achieves unimpeded lifting buffering and rapid reset, while also accommodating the rapid start-stop characteristics of the cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is the main view of the lifting mechanism of this utility model;

[0017] Figure 3 This is a top view of the lifting mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the queue spacing management module of this utility model.

[0019] Among them, 1-smoke conveying line, 2-lifting mechanism, 21-pallet, 22-cylinder, 23-friction plate, 31-first sensor, 32-second sensor. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0021] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0022] like Figures 1-4 As shown, this utility model discloses a cigarette pack queue management device, which is installed at the front end of the barcode detection station of the cigarette pack conveyor line 1. By managing and adjusting the queue spacing between cigarette packs, it avoids the impact of cigarette-following phenomena on the downstream cigarette pack rejection device. The cigarette pack queue management device includes a lifting mechanism 2 for lifting cigarette packs to remove them from the cigarette pack conveyor line 1, a queue spacing management module for detecting the spacing between cigarette packs, and a controller.

[0023] In this embodiment, the lifting mechanism 2 includes a pallet 21 whose initial height is slightly lower than the conveying surface of the cigarette conveying line 1, so that the pallet 21 will not interfere with the conveying of cigarettes under normal circumstances. The bottom of the pallet 21 is provided with a cylinder 22 for lifting the pallet 21 and a solenoid valve for controlling the start and stop of the cylinder 22. The solenoid valve controls the start and stop of the cylinder; when the solenoid valve receives a signal from the controller, it controls the cylinder to move, thereby realizing the lifting and lowering of the pallet.

[0024] In this embodiment, the pallet 21 is provided with three friction plates 23. The friction plates 23 are arranged parallel to each other on the pallet 21 along the material conveying direction. The friction plates 23 can be made of polyurethane. The friction plates 23 increase the friction between the pallet 21 and the cigarette packs, preventing the cigarette packs from sliding on the pallet 21. They can effectively resist the pushing force of the subsequent 4-5 boxes of cigarette packs to cope with the situation of multiple boxes of cigarette packs being stacked continuously, while minimizing damage to the cigarette packs. The upward movement distance of the pallet 21 is relatively short, so that the cylinder stroke is as short as possible, which is conducive to rapid response.

[0025] In this embodiment, the queue spacing management module includes a first sensor 31 and a second sensor 32 arranged sequentially along the material conveying direction of the cigarette conveyor line 1. Both the first sensor 31 and the second sensor 32 are photoelectric sensors. A preset spacing is established between the first sensor 31 and the second sensor 32, which is greater than the length of a single cigarette pack. In this embodiment, the preset spacing is 60cm. A lifting mechanism 2 is positioned between the first sensor 31 and the second sensor 32. The first sensor 31, the second sensor 32, and the solenoid valve are all connected to the controller via signals.

[0026] In this embodiment, when the first sensor 31 and the second sensor 32 simultaneously detect cigarette smoke, the queue spacing management module sends a lifting signal to the controller. The controller triggers the lifting mechanism 2 to lift the cigarette smoke detected by the first sensor 31 until the cigarette smoke detected by the second sensor 32 passes through. Then, the queue spacing management module sends a reset signal to the controller, and the controller resets the lifting mechanism 2.

[0027] In this embodiment, a return spring assembly and a one-way hydraulic damper are connected in parallel at the bottom of the support plate 21 and the cylinder 22. The piston rod of the one-way hydraulic damper is connected to the bottom of the support plate 21. The return spring assembly includes an inner spring and an outer spring, which are symmetrically distributed on both sides of the one-way hydraulic damper. When the cylinder 22 lifts, it pushes the support plate 21 upward. The damper generates damping force through the throttling orifice to suppress the impact and prevent the part from shifting or tilting. When the lifting mechanism resets, the cylinder depressurizes, the spring assembly pushes the support plate downward, and the one-way valve inside the damper is fully open, so the resistance is negligible, achieving rapid reset. The selection of springs and dampers can be adjusted according to the actual needs of the production line, and will not be elaborated here.

[0028] In this embodiment, the stiffness of the inner spring is greater than that of the outer spring. When cylinder 22 is activated, the inner spring compresses first to quickly respond to the lifting demand. When the pallet rises to 1 / 3 of its stroke, the outer spring begins to compress, reducing the lifting acceleration and avoiding sudden changes in impact force. After cylinder 22 is depressurized, the outer spring extends first to provide reset assistance, and the inner spring then releases residual energy to ensure the pallet descends smoothly.

[0029] The working principle of this utility model is as follows:

[0030] When the first sensor 31 and the second sensor 32 simultaneously detect a cigarette pack, it indicates that the distance between the two cigarette packs is less than the preset distance. The queue spacing management module sends a lifting signal to the controller. Upon receiving the lifting signal, the controller triggers the lifting mechanism 2, controls the solenoid valve to open, and the cylinder 22 pushes the pallet 21 upward, lifting the cigarette pack above the pallet 21 and removing it from the conveyor line, temporarily stopping its forward movement. At this time, the cigarette pack in front continues to move forward, and the distance between it and the cigarette pack behind it that has been lifted gradually increases until the cigarette pack detected by the second sensor 32 passes. After this, the queue spacing management module sends a reset signal to the controller. Upon receiving the reset signal, the controller controls the solenoid valve to close, the cylinder 22 to retract, the pallet 21 to descend, and the lifted cigarette pack falls back onto the conveyor line to continue moving forward. In this way, effective management of the cigarette pack queue spacing is achieved.

[0031] During this process, when lifting, the hydraulic damper absorbs the impact energy through fluid throttling, slowing down the rising speed, while the spring assembly is compressed to store energy; when resetting, the spring releases energy to push the rapid return to position, the one-way valve inside the damper opens, the resistance is minimal, and the two are connected in parallel to ensure that buffering and resetting do not interfere with each other.

[0032] In practical applications, this device effectively solves the problem of inconsistent queue spacing caused by uneven speed during the conveying of cigarette packs, ensuring that cigarette packs enter the barcode detection station at appropriate intervals, thereby improving the accuracy and efficiency of barcode recognition. Furthermore, the device has a simple structure, clear control logic, and is easy to maintain, making it highly practical.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A cigarette pack queue management device, installed at the front end of the barcode detection station on the cigarette pack conveyor line (1), characterized in that, It includes a lifting mechanism (2) for lifting cigarettes to detach them from the cigarette conveying line (1), a queue spacing management module and a controller for detecting the spacing between cigarettes; the lifting mechanism (2) includes a pallet (21) with an initial height lower than the conveying surface of the cigarette conveying line (1), and the bottom of the pallet (21) is provided with a cylinder (22) for lifting the pallet (21) and a solenoid valve for controlling the start and stop of the cylinder (22); The queue spacing management module includes a first sensor (31) and a second sensor (32) arranged sequentially along the material conveying direction of the cigarette conveying line (1). The preset spacing between the first sensor (31) and the second sensor (32) is greater than the length of a single cigarette. The lifting mechanism (2) is arranged between the first sensor (31) and the second sensor (32). The first sensor (31), the second sensor (32), and the solenoid valve are all connected to the controller signal.

2. The cigarette pack queue management device according to claim 1, characterized in that: The pallet (21) is provided with a plurality of friction plates (23), which are arranged parallel to each other on the pallet (21) along the material conveying direction.

3. The cigarette pack queue management device according to claim 2, characterized in that: The friction plate (23) is a polyurethane plate.

4. The cigarette pack queue management device according to claim 1, characterized in that: Both the first sensor (31) and the second sensor (32) are photoelectric sensors.

5. The cigarette pack queue management device according to claim 1, characterized in that: The preset spacing is 60cm.

6. The cigarette pack queue management device according to claim 1, characterized in that: The bottom of the support plate (21) is connected in parallel with the cylinder (22) to a reset spring assembly and a one-way hydraulic damper. The piston rod of the one-way hydraulic damper is connected to the bottom of the support plate (21). The reset spring assembly includes an inner spring and an outer spring, which are symmetrically distributed on both sides of the one-way hydraulic damper.

7. The cigarette pack queue management device according to claim 6, characterized in that: The stiffness of the inner spring is greater than that of the outer spring.

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