A cigarette crease detection auxiliary device

By combining a worm gear transmission mechanism and a stepper motor, the cigarette can rotate automatically, solving the problems of low detection efficiency and finger fatigue in the existing technology, improving detection efficiency and avoiding secondary defects in the cigarette.

CN112189883BActive Publication Date: 2026-04-14CHONGQING CHINA TOBACCO IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING CHINA TOBACCO IND CO LTD
Filing Date
2020-10-14
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Current cigarette crease detection methods require manual rotation, resulting in low detection efficiency, easy finger fatigue, and secondary defects in cigarettes.

Method used

The transmission mechanism, which uses a worm gear and worm meshing, combined with a stepper motor and frequency converter, enables the automatic rotation of the cigarette stick. The simultaneous rotation of multiple cigarette tubes assists in detection.

Benefits of technology

It improves the efficiency of cigarette crease detection, reduces operator fatigue, avoids secondary defects in cigarettes, and has a simple structure and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN112189883B_ABST
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Abstract

The application relates to the technical field of cigarette detection, and discloses a cigarette crease detection auxiliary device, which comprises a base, a transmission mechanism arranged on the base, a clamping mechanism for controlling the rotation of a cigarette connected to the output end of the transmission mechanism, a worm and a plurality of worm gears cooperatively arranged with the worm, a rotating shaft penetrating through the center position of the worm gears, the rotating shaft being fixedly connected to the worm gears, the rotating shaft being rotatably connected to a front side wall and a rear side wall, the worm being rotatably connected to a left side wall and a right side wall, a stepping motor being arranged on one side of the worm close to the right side wall, the stepping motor being fixed on a bottom plate, the worm being connected with the output shaft of the stepping motor, the clamping mechanism comprising a plurality of tobacco barrels, a cylindrical hole being arranged on the tobacco barrel, and one end of the tobacco barrel away from the cylindrical hole being fixedly connected with the rotating shaft. The device can replace the manual rotation mode used in the existing cigarette crease detection, automatically rotates the cigarette placed in the tobacco barrel through the transmission mechanism, is beneficial to assisting the crease detection of the cigarette, and improves the detection efficiency.
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Description

Technical Field

[0001] This invention belongs to the field of cigarette detection technology, and in particular relates to an auxiliary device for detecting cigarette creases. Background Technology

[0002] The appearance of cigarettes is an important indicator for evaluating them. A noticeable defect in the appearance of cigarettes is creases (i.e., unevenness on the surface of the cigarette). Creases are mainly caused by wrinkles or deformation at the joints of the cigarette paper, or unevenness of the cigarette paper during the packing process, resulting in obvious crease marks on the surface of the cigarette. Creases give consumers a poor visual impression and are prone to customer complaints. It is necessary to inspect cigarettes for creases. The inspection of cigarette creases is generally carried out by sampling, in which a portion of cigarettes are randomly selected from the production line at intervals for inspection.

[0003] Existing technologies for detecting cigarette creases require continuous rotation of the cigarette, which is done manually. This is inefficient, causes finger fatigue from prolonged rotation, and can also lead to secondary defects in the cigarette. Therefore, it is necessary to provide an automatic cigarette rotation device to assist in the detection of cigarette creases. Summary of the Invention

[0004] In view of this, the present invention provides a cigarette crease detection auxiliary device to overcome the shortcomings in the above-mentioned background technology and realize the automatic rotation of cigarettes.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for detecting cigarette creases, comprising a base, on which a transmission mechanism is provided, the output end of which is connected to a clamping mechanism for controlling the rotation of the cigarette. The base includes a bottom plate, front and rear side walls corresponding to the front and back, and left and right side walls corresponding to the left and right. The transmission mechanism includes a worm and a plurality of worm wheels cooperating with the worm. The worm has multiple sets of helical teeth, which mesh with the worm wheel teeth. The center of the worm wheel is penetrated by a... A rotating shaft is provided, which is fixedly connected to the worm gear. The rotating shaft is rotatably connected to the front and rear side walls. The worm gear is rotatably connected to the left and right side walls. A stepper motor is provided on the side of the worm gear near the right side wall. The stepper motor is electrically connected to a frequency converter, which can adjust the speed of the motor. The stepper motor is fixed to the base plate. The worm gear is connected to the output shaft of the stepper motor. The clamping mechanism includes several cigarette tubes. Each cigarette tube has a cylindrical hole for placing cigarettes. The end of the cigarette tube away from the cylindrical hole is fixedly connected to the rotating shaft.

[0006] Furthermore, rolling bearings are provided on the front sidewall, rear sidewall, left sidewall, and right sidewall. The rolling bearings are fixed on the sidewalls. The worm gear is rotatably connected to the left sidewall and right sidewall through the rolling bearings. The rotating shaft is rotatably connected to the front sidewall and rear sidewall through the rolling bearings.

[0007] Furthermore, the number of worm gears and chimneys is eight each, allowing inspectors to complete the crease detection of multiple cigarettes simultaneously within the field of vision.

[0008] Furthermore, the depth of the cylindrical hole is less than the length of the cigarette filter tip, ensuring that the cigarette paper is exposed.

[0009] Furthermore, the lower surface of the base plate is provided with a support column, which is fixedly connected to the base plate so that the base plate is inclined at a 45-degree angle to the horizontal plane, so that the placed cigarettes maintain the same inclination angle. This angle is beneficial for inspectors to obtain a better inspection angle and is conducive to the detection of defects such as creases in cigarettes.

[0010] Furthermore, the base is equipped with storage boxes that can hold various items needed for testing, such as dot gauges, pens, and markers.

[0011] In summary, compared with existing technologies, it has the following advantages:

[0012] This device can replace the manual rotation method used in existing cigarette crease detection. It achieves motion transmission in different axes through the meshing of worm gear and worm. The structure is simple and easy to operate. At the same time, the device is equipped with multiple rotating cigarette tubes. The transmission mechanism realizes the automatic rotation of the cigarettes placed in the cigarette tubes, which helps to assist in the detection of cigarette creases and improves the detection efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an auxiliary device for detecting cigarette creases according to the present invention;

[0014] Figure 2 yes Figure 1 Front view of the central transmission mechanism;

[0015] Figure 3 yes Figure 1 Top view of the central transmission mechanism;

[0016] Figure 4 yes Figure 1 Cross-sectional view of the central chimney;

[0017] The symbols for the main components are explained below:

[0018] 1. Base plate; 2. Front side wall; 3. Rear side wall; 4. Left side wall; 5. Right side wall; 6. Worm gear; 7. Rotating shaft; 8. Worm; 9. Rolling bearing; 10. Chimney; 11. Threaded hole; 12. Cylindrical hole; 13. Cigarette; 14. Stepper motor; 15. Support column; 16. Frequency converter; 17. Storage box; 18. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0020] like Figures 1-4 A cigarette crease detection auxiliary device includes a base 1, on which a transmission mechanism is provided. The output end of the transmission mechanism is connected to a clamping mechanism for controlling the rotation of the cigarette 14. The base 1 includes a bottom plate 2, a front side wall 3 and a rear side wall 4 arranged in a front-rear correspondence, and a left side wall 5 and a right side wall 6 arranged symmetrically on the left and right sides.

[0021] The transmission mechanism includes a worm 9 and eight worm wheels 7 that cooperate with the worm 9. The worm 9 has eight sets of helical teeth, which mesh with the worm wheel teeth of the worm wheels 7. Rolling bearings 10 are fixedly installed on the front side wall 3, rear side wall 4, left side wall 5, and right side wall 6. The worm 9 is rotatably connected to the left side wall 5 and right side wall 6 through the rolling bearings 10. A through hole is opened at the center of the worm wheel, and a rotating shaft 8 is inserted through the through hole. The rotating shaft 8 is fixed to the worm wheel 7 by a flat key. The worm gear 7 is rotatably connected to the front side wall 3 and the rear side wall 4. The rotating shaft 8 on the worm gear 7 is rotatably connected to the front side wall 3 and the rear side wall 4 through the rolling bearing 10. One end of the rotating shaft 8 extending out of the rear side wall 4 is fixedly connected to the clamping mechanism. A stepper motor 15 is provided on the side of the worm 9 near the right side wall 6. One end of the worm 9 extending out of the right side wall 6 is fixedly connected to the output shaft of the stepper motor 15 through a coupling. The stepper motor 15 is electrically connected to a frequency converter 17 for adjusting the motor speed. The stepper motor 15 is fixed on the base plate 2.

[0022] The clamping mechanism includes a cigarette tube 11. In this embodiment, there are 8 cigarette tubes. The cigarette tube 11 has a cylindrical hole 13 for placing the cigarette 14. The depth of the cylindrical hole 13 is less than the length of the filter of the cigarette 14, so as to ensure that the cigarette paper of the cigarette 14 is exposed. The end of the cigarette tube 11 away from the cylindrical hole 13 has a threaded hole 12. The cigarette tube 11 is threadedly connected to the rotating shaft 8 through the threaded hole 12.

[0023] The lower surface of the base plate 2 is provided with a support column 16, and the support column 17 is fixed to the base plate 2 by bolts, so that the base plate 2 is tilted at a 45-degree angle to the horizontal plane, so that the cigarette stick 14 placed therein maintains the same tilt angle. The base plate 2 is provided with a storage box 18, which can hold various items required for testing, such as gauges, pens, and markers. When a crease is detected, the length of the crease is tested with a gauge and marked with a marker.

[0024] When using this invention, the cigarette 14 to be tested is placed in the cigarette tube 11. The tester sets the speed of the stepper motor 15 on the frequency converter 17 according to personal needs. After the stepper motor 15 is turned on, it drives the worm 9 and the worm wheel 7 to rotate in different axial directions. The rotation of the worm wheel 7 causes the rotating shaft 8 fixedly connected to it and the cigarette tube 11 to rotate synchronously, so that all the cigarettes 14 on the cigarette tube 11 rotate along the axial direction of the cigarette 14, thereby assisting in the detection of creases in the cigarette 14.

[0025] The above provides a detailed description of a cigarette crease assist device provided by the present invention. The specific embodiments are described only to help understand the technical solution of the present invention and are not intended to limit it. Those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of the present invention, without departing from the spirit and scope of the present invention, should all be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. An auxiliary device for detecting cigarette creases, characterized in that: The device includes a base on which a transmission mechanism is mounted. The output end of the transmission mechanism is connected to a clamping mechanism for controlling the rotation of the cigarette. The base includes a bottom plate, front and rear side walls corresponding to each other, and left and right side walls corresponding to each other. The transmission mechanism includes a worm and several worm wheels that cooperate with the worm. The worm has multiple sets of helical teeth that mesh with the worm wheel teeth. A rotating shaft is inserted through the center of the worm wheel and is fixedly connected to the worm wheel. The rotating shaft is rotatably connected to the front and rear side walls, and the worm is rotatably connected to the left and right side walls. A stepper motor is mounted on the side of the worm closest to the right side wall. The stepper motor is electrically connected to a frequency converter and is fixed to the bottom plate. The worm is connected to the output shaft of the stepper motor. The clamping mechanism includes several cigarette tubes with cylindrical holes for placing cigarettes. The end of the cigarette tube away from the cylindrical hole is fixedly connected to the rotating shaft. The depth of the cylindrical hole is less than the length of the cigarette filter. The lower surface of the base plate is provided with a support column, which is fixedly connected to the base plate. The base plate is inclined at a 45-degree angle to the horizontal plane.

2. The auxiliary device for detecting cigarette creases according to claim 1, characterized in that: Rolling bearings are provided on the front sidewall, rear sidewall, left sidewall and right sidewall. The rolling bearings are fixed on the sidewalls. The worm gear is rotatably connected to the left sidewall and right sidewall through the rolling bearings. The rotating shaft is rotatably connected to the front sidewall and rear sidewall through the rolling bearings.

3. The auxiliary device for detecting cigarette creases according to claim 2, characterized in that: The number of worm gears and chimneys is 8 each.

4. The cigarette crease detection auxiliary device according to claim 3, characterized in that: The base is equipped with a storage box.

Citation Information

Patent Citations

  • Perforated tipping paper hole size detector

    CN109856161A

  • Anti-crease test device for wire surface

    CN204286917U

  • Worm and gear linear push-pull mechanism capable of being connected in series

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  • Cigarette crease detection auxiliary device

    CN214179106U