A cigarette diameter detection device
By working in tandem with a laser diameter gauge and a drive rejection mechanism, efficient and accurate detection and timely rejection of cigarette diameter are achieved, solving the problems of low detection efficiency, poor accuracy and product damage in existing technologies, and meeting the needs of high-speed production lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU CHUANGRUN MACHINERY CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-07
AI Technical Summary
Existing methods for detecting cigarette diameter are labor-intensive, inefficient, and the consistency and accuracy of test results are difficult to guarantee. Furthermore, mechanical testing may cause compression or scratches on the surface of the cigarette, making it difficult to adapt to high-speed production lines and resulting in substandard cigarettes being mixed with qualified products.
A laser diameter gauge is used for non-contact inspection. Combined with a U-shaped structure and V-groove positioning, it can achieve omnidirectional measurement of cigarettes in the vertical direction. The drive mechanism ensures that the conveyor belt runs at a uniform speed. The rejection mechanism is linked with the detection system to achieve efficient rejection of defective products.
It improves detection accuracy and efficiency, avoids damage to the cigarette surface, ensures the coordination of detection and rejection actions, and prevents unqualified products from being mixed with qualified products.
Smart Images

Figure CN224461115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tobacco machinery and testing equipment, specifically a cigarette diameter detection device. Background Technology
[0002] In cigarette production, cigarette diameter is one of the key indicators affecting product quality and smoking experience. Cigarettes with substandard diameters can cause problems such as jams and damage in the packaging process, affecting production efficiency. They can also lead to poor ventilation and uneven burning during smoking, reducing consumer satisfaction. Therefore, efficient and accurate detection of cigarette diameter and timely rejection of substandard products are crucial for cigarette manufacturers to ensure product quality and enhance market competitiveness.
[0003] Currently, the industry mainly uses two methods to detect cigarette diameter: manual inspection and mechanical inspection. Manual inspection relies on operators to observe with the naked eye or use simple measuring tools for random checks. This method is not only labor-intensive and inefficient, but also greatly affected by human factors. The consistency and accuracy of the test results are difficult to guarantee, and it is easy to miss or misdetect, which cannot meet the needs of large-scale automated production.
[0004] While existing mechanical inspection devices have achieved a degree of automation, they still have many shortcomings. Some devices use contact inspection methods, measuring the diameter by having a mechanical probe contact the surface of the cigarette. This method may cause compression or scratches to the cigarette surface, affecting the product's appearance quality. Furthermore, contact inspection has a slow response speed, making it difficult to adapt to high-speed production lines. It also suffers from deficiencies in inspection accuracy and the coordination of rejection actions, resulting in unqualified cigarettes not being accurately and promptly rejected, thus mixing with qualified products and affecting the overall quality control effect. Therefore, we propose a cigarette diameter inspection device to address these problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a cigarette diameter detection device, solving the problems of high labor intensity, low efficiency, difficulty in ensuring the consistency and accuracy of detection results, and the tendency for missed or false detections in manual inspection. While mechanical inspection achieves automation, some devices use contact detection methods, which may cause compression or scratches to the cigarette surface, affecting product appearance quality. Furthermore, their slow response speed makes them unsuitable for high-speed production lines, and they suffer from deficiencies in detection accuracy and the coordination of rejection actions, resulting in the inability to accurately and promptly remove substandard cigarettes, thus impacting overall quality control.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a cigarette diameter detection device, comprising a support frame;
[0007] A panel is mounted on the support frame;
[0008] The conveyor belt is provided in two sets, each set is symmetrically arranged, and is located on the panel;
[0009] The placement seats are evenly distributed on the surface of the conveyor belt, and the placement seats are provided with V-shaped grooves. Cigarettes can be placed on the placement seats on the symmetrically arranged conveyor belt with V-shaped grooves.
[0010] A drive mechanism, mounted on the support frame, is used to drive the conveyor belt to move uniformly;
[0011] The laser diameter measuring instrument is provided in two sets, and is arranged in a symmetrical manner with the conveyor belts.
[0012] The rejection mechanism is located in two sets and installed on the panel to reject unqualified cigarettes.
[0013] Preferably, an L-shaped plate arranged symmetrically is fixedly installed at the center of the upper surface of the panel by bolts, and a horizontal plate arranged symmetrically is fixedly installed between the two sets of L-shaped plates. The laser diameter measuring instrument is fixed on the surface of the horizontal plate, and a rectangular opening is provided on the panel.
[0014] Preferably, the laser diameter measuring instrument is arranged in a U-shape, and the upper and lower detection ends are located on the upper and lower layers of the conveyor belt.
[0015] Preferably, an alarm is installed on the horizontal plate.
[0016] Preferably, the driving mechanism includes support plates fixed at both ends of the support frame. A set of support plates is provided with long rollers. Bearing seats are fixedly installed at both ends of the support plates near the long rollers, and the two ends of the long rollers are rotatably connected to the bearing shafts. A second pulley is fixedly installed at one end of the long roller. A motor is fixedly installed at the bottom of the support plate near the long roller through the plate body. A first pulley is fixedly installed at the output end of the motor. A belt is meshed between the first pulley and the second pulley. A short roller is rotatably installed at the other end of the support plate near the symmetrically arranged conveyor belts through the bearing seats. The conveyor belts, symmetrically arranged on the left and right sides, are wound around the corresponding short rollers and long rollers.
[0017] Preferably, the rejection mechanism includes a U-shaped plate fixed on the panel near the laser diameter measuring instrument, a telescopic cylinder fixedly installed on the U-shaped plate, an arc-shaped plate fixedly installed at the output end of the telescopic cylinder, and a collection box provided at the bottom of the panel, which can be placed on the ground for collecting waste.
[0018] Beneficial effects
[0019] This invention provides a cigarette diameter detection device. Compared with the prior art, it has the following advantages:
[0020] This cigarette diameter detection device uses a laser diameter gauge for non-contact detection, avoiding the squeezing or scratching of the cigarette surface caused by traditional contact detection, thus ensuring the appearance quality of the cigarettes. The U-shaped laser diameter gauge can simultaneously detect the diameter of the cigarette in both the vertical and horizontal directions. Combined with the positioning function of the V-groove of the placement seat, it effectively eliminates measurement errors caused by cigarette tilting, achieving a level of accuracy far superior to manual detection or single-direction detection. The drive mechanism ensures uniform speed operation of the conveyor belt, which, together with the high-speed response of the laser diameter gauge, solves the problem of low efficiency in manual detection. The detection and rejection actions are linked through the control system, preventing defective products from mixing with qualified products and overcoming the shortcomings of poor coordination between detection and rejection in traditional mechanical detection. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a left view of the overall structure of this utility model;
[0023] Figure 3 This is a structural cross-sectional view of the support frame and panel connectors of this utility model;
[0024] Figure 4 This is a right view of the overall structure of this utility model.
[0025] In the diagram: 101, support frame; 102, panel; 103, conveyor belt; 104, placement seat; 105, L-shaped plate; 106, horizontal plate; 107, laser diameter gauge; 108, alarm; 2. drive mechanism; 201, motor; 202, first pulley; 203, belt; 204, second pulley; 205, long section roller; 206, short section roller; 207, support plate; 3. rejection mechanism; 301, U-shaped plate; 302, telescopic cylinder; 303, arc-shaped plate; 304, collection box. Detailed Implementation
[0026] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figure 1-4 As shown:
[0028] A cigarette diameter detection device includes a support frame 101;
[0029] Panel 102 is mounted on support frame 101;
[0030] The conveyor belt 103 has two sets, each set is symmetrically arranged and located on the panel 102;
[0031] Placement seats 104 are evenly distributed on the surface of conveyor belt 103, and the placement seats 104 are provided with V-shaped grooves. Cigarettes can be placed on the placement seats 104 provided with V-shaped grooves on the symmetrically arranged conveyor belt 103.
[0032] The drive mechanism 2 is mounted on the support frame 101 and is used to drive the conveyor belt 103 to move uniformly. The drive mechanism 2 includes support plates 207 fixed at both ends of the support frame 101. A set of support plates 207 is provided with long rollers 205. Bearing seats are fixedly installed at both ends of the support plates 207 near the long rollers 205, and the two ends of the long rollers 205 are rotatably connected to the bearing shafts. A second pulley 204 is fixedly installed at one end of the long rollers 205. A motor 201 is fixedly installed at the bottom of the support plate 207 near the long rollers 205 through the plate body. A first pulley 202 is fixedly installed at the output end of the motor 201. A belt 203 is meshed between the first pulley 202 and the second pulley 204. A short roller 206 is rotatably installed at the other end of the support plate 207 near the symmetrically arranged conveyor belts 103 through the bearing seats. The conveyor belts 103 arranged symmetrically on the left and right sides are wound around the corresponding short rollers 206 and long rollers 205.
[0033] The laser diameter gauge 107 is provided in two sets, which are respectively arranged in relation to the symmetrical conveyor belt 103. The center of the upper surface of the panel 102 is fixedly installed with bolts and the symmetrically arranged L-shaped plates 105 are fixedly installed between the two sets of L-shaped plates 105. The laser diameter gauge 107 is fixed on the surface of the horizontal plate 106. The panel 102 has a rectangular opening. The laser diameter gauge 107 is set in a U-shaped structure, and the upper and lower detection ends are located on the single layer of the conveyor belt 103 and distributed vertically. An alarm 108 is installed on the horizontal plate 106.
[0034] The rejection mechanism 3 is provided in two sets and installed on the panel 102 to reject unqualified cigarettes. The rejection mechanism 3 includes a U-shaped plate 301 fixed on the panel 102 near the laser diameter measuring instrument 107. A telescopic cylinder 302 is fixedly installed on the U-shaped plate 301. An arc-shaped plate 303 is fixedly installed at the output end of the telescopic cylinder 302. A collection box 304 is provided at the bottom of the panel 102. The collection box 304 can be placed on the ground for collecting waste.
[0035] In this implementation plan: When the cigarette diameter detection device is in use, the cigarette to be detected is conveyed by a preliminary conveying device (not shown in the figure) onto a placement seat 104 on the surface of two sets of symmetrical conveyor belts 103. The V-shaped grooves opened in the placement seat 104 can accurately position the cigarette, ensuring that the cigarette axis is consistent with the running direction of the conveyor belt 103, and avoiding tilting or deviation during the conveying process. The drive mechanism 2 provides power for the conveying: after the motor 201 starts, it drives the second pulley 204 to rotate through the first pulley 202 and the belt 203, which in turn drives the long section roller 205 to rotate. The long section roller 205 cooperates with the short section roller 206 to make the two sets of symmetrical conveyor belts 103 on the left and right sides move synchronously and at a uniform speed, continuously conveying the cigarette and passing through the detection area.
[0036] When the conveyor belt 103 drives the placement seat 104 and the cigarettes into the detection area, two sets of laser diameter gauges 107 detect the cigarettes on the symmetrical conveyor belt 103. The laser diameter gauge 107 adopts a U-shaped structure, with its upper and lower detection ends located above and below the single layer of the conveyor belt 103, respectively. It can simultaneously collect the diameter data of the cigarettes in the vertical direction, realizing all-round, non-contact measurement of the cigarette diameter. The detection data is transmitted to the control system in real time and compared with the preset diameter standard to determine whether the cigarettes are qualified.
[0037] If the diameter of the cigarette is found to be non-compliant, the control system immediately triggers two actions: First, the alarm 108 on the horizontal plate 106 emits an audible and visual alarm to alert the operator to the abnormality; second, the corresponding rejection mechanism 3 is activated, and the telescopic cylinder 302 on the U-shaped plate 301 extends quickly, pushing the arc plate 303 to contact the non-compliant cigarette. When the cigarette is placed in the placement seat 104, one end of it is located outside the placement seat 104. The telescopic cylinder 302 drives the arc plate 303 to press and extend the part located outside the placement seat 104. At this time, the cigarette is pressed and tilted, and falls into the collection box 304 at the bottom through the rectangular opening on the panel 102. After the rejection action is completed, the telescopic cylinder 302 is reset, which does not affect the subsequent cigarette conveying and detection.
[0038] This solution uses a laser diameter gauge 107 to achieve non-contact detection, avoiding the squeezing or scratching of the cigarette surface caused by traditional contact detection, thus ensuring the appearance quality of cigarettes.
[0039] The U-shaped laser diameter gauge 107 can simultaneously detect the diameter of cigarettes in the vertical direction. Combined with the positioning function of the V-groove of the placement seat 104, it effectively eliminates the measurement error caused by the tilting of the cigarette, and its accuracy is far higher than that of manual detection or single-direction detection.
[0040] The drive mechanism 2 enables the conveyor belt 103 to run at a constant speed. Combined with the high-speed response of the laser diameter gauge 107, it solves the problem of low efficiency in manual inspection. The inspection and rejection actions are linked through the control system to prevent defective products from mixing with qualified products, thus solving the defect of poor coordination between inspection and rejection in traditional mechanical inspection.
[0041] It should be noted that all electrical equipment involved in this product is powered by an external power source. The solution also includes a control system, which is installed on the equipment. During use, each piece of electrical equipment can be started and operated separately through the control system. The power connection method of each piece of electrical equipment is a mature existing technology and is well known to those in the field, so it will not be described in detail here.
[0042] It should be noted that the placement seat 104 is made of flexible material, such as rubber, which can not only stably position the cigarettes, but also avoid abrasion on the surface of the cigarettes.
[0043] The placement seat 104 is fixed by the L-shaped plate 105 and the horizontal plate 106. Its position is adjustable, which is convenient for calibration. The components of the drive mechanism 2 and the rejection mechanism 3 are all standardized components, which are easy to disassemble and maintain, reducing the equipment operation and maintenance cost.
[0044] Furthermore, any content in this specification that is not described in detail regarding the laser diameter measuring instrument 107 is existing technology known to those skilled in the art.
[0045] The working principle and usage process of this utility model are as follows: The cigarettes to be tested are conveyed through a preliminary conveying device (not shown in the figure) onto the placement seats 104 on the surface of two sets of symmetrical conveyor belts 103. The V-shaped grooves in the placement seats 104 accurately position the cigarettes. The drive mechanism 2 provides power for the conveying. After the motor 201 starts, it drives the second pulley 204 to rotate through the first pulley 202 and the belt 203, which in turn drives the long section roller 205 to rotate. The long section roller 205 cooperates with the short section roller 206 to make the two sets of symmetrical conveyor belts 103 on the left and right sides move synchronously and at a uniform speed, continuously conveying the cigarettes and passing through the detection area. When the conveyor belt 103 drives the placement seats 104 and the cigarettes into the detection area, the two sets of laser diameter gauges 107 respectively check the cigarettes. The cigarettes on the conveyor belt 103 are inspected. The laser diameter gauge 107 adopts a U-shaped structure and can simultaneously collect the diameter data of the cigarettes in the vertical direction, realizing omnidirectional and non-contact measurement of the cigarette diameter. The detection data is transmitted to the control system in real time and compared with the preset diameter standard to determine whether the cigarettes are qualified. If the cigarette diameter is found to be non-compliant, the control system immediately triggers the alarm 108 to issue an audible and visual alarm and starts the corresponding rejection mechanism 3. The telescopic cylinder 302 on the U-shaped plate 301 pushes the arc plate 303 to contact the non-compliant cigarettes, presses and tilts the non-compliant cigarettes and lets them fall into the collection box 304 at the bottom through the rectangular opening on the panel 102. After the rejection action is completed, the telescopic cylinder 302 resets, without affecting the subsequent cigarette conveying and inspection.
[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cigarette diameter detection device, characterized in that: Includes support frame (101); A panel (102) is provided on the support frame (101); The conveyor belt (103) is provided in two sets, each set is symmetrically arranged, and is located on the panel (102); Placement seats (104) are evenly distributed on the surface of the conveyor belt (103), and the placement seats (104) are provided with V-shaped grooves. Cigarettes can be placed on the placement seats (104) provided with V-shaped grooves on the symmetrically arranged conveyor belt (103). A drive mechanism (2) is mounted on the support frame (101) and is used to drive the conveyor belt (103) to move uniformly. The laser diameter measuring instrument (107) is provided in two sets, and is respectively arranged in correspondence with the symmetrical conveyor belt (103); The rejection mechanism (3) is located in two groups and installed on the panel (102) to reject unqualified cigarettes.
2. The cigarette diameter detection device according to claim 1, characterized in that: At the center of the upper surface of the panel (102), L-shaped plates (105) arranged symmetrically are fixedly installed by bolts. A horizontal plate (106) arranged symmetrically is fixedly installed between the two sets of L-shaped plates (105). The laser diameter measuring instrument (107) is fixed on the surface of the horizontal plate (106). A rectangular opening is provided on the panel (102).
3. The cigarette diameter detection device according to claim 2, characterized in that: The laser diameter measuring instrument (107) is arranged in a U-shape, and the upper and lower detection ends are located on the single layer of the conveyor belt (103).
4. The cigarette diameter detection device according to claim 3, characterized in that: An alarm (108) is installed on the horizontal plate (106).
5. The cigarette diameter detection device according to claim 1, characterized in that: The drive mechanism (2) includes support plates (207) fixed at both ends of the support frame (101). A set of support plates (207) is provided with long rollers (205). Bearing seats are fixedly installed on both ends of the support plates (207) near the long rollers (205), and both ends of the long rollers (205) are rotatably connected to the bearing shafts. A second pulley (204) is fixedly installed on one end of the long rollers (205). The bottom of the support plates (207) near the long rollers (205) is connected by a plate. A motor (201) is fixedly installed on the body. A first pulley (202) is fixedly installed on the output end of the motor (201). A belt (203) is meshed between the first pulley (202) and the second pulley (204). A short roller (206) is rotatably installed on the support plate (207) at the other end near the symmetrical conveyor belt (103) through a bearing seat. The conveyor belt (103) arranged symmetrically on the left and right sides is wound around the corresponding short roller (206) and long roller (205).
6. The cigarette diameter detection device according to claim 1, characterized in that: The rejection mechanism (3) includes a U-shaped plate (301) fixed on the panel (102) near the laser diameter measuring instrument (107). A telescopic cylinder (302) is fixedly installed on the U-shaped plate (301). An arc-shaped plate (303) is fixedly installed at the output end of the telescopic cylinder (302). A collection box (304) is provided at the bottom of the panel (102). The collection box (304) can be placed on the ground for collecting waste.