A hole row spacing adjustment device
By adjusting the spacing between the rows of cigarette filter rods using a double-row beam splitter device, the problem of difficulty in adjustment in existing devices is solved, enabling flexible production of different brands of cigarettes, reducing production costs and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN TIANCHI TECH
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-10
AI Technical Summary
Existing laser drilling devices for cigarette filter rods have difficulty adjusting the spacing between the holes, leading to frequent production line changes and increased production costs.
A double-row beam splitter device is adopted. By setting up a steering mirror assembly, a variable diameter pipe assembly, and a beam splitter assembly, the spacing between the two rows of holes can be flexibly adjusted by utilizing the conversion effect of the semi-transparent mirror and the reflecting mirror.
It enables flexible handling of different cigarette brands, eliminating the need for multiple devices, reducing production costs, and improving work efficiency.
Smart Images

Figure CN224475726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco processing technology, specifically to a hole spacing adjustment device. Background Technology
[0002] In cigarette production, the filter rod is a key component affecting cigarette quality and smoking experience, and the precision of its perforation is crucial. Currently, laser perforation is the most widely used method for cigarette filter rod perforation. During the cigarette rolling process, a high-energy laser is used to perforate the tipping paper in the middle of the filter rod to create tiny holes. When the cigarette is smoked, these holes dilute the smoke, thereby reducing the tar content and minimizing the adverse effects on human health and the environment.
[0003] With the gradual promotion and application of laser perforation technology for cigarettes, cigarette factories have increasingly diverse requirements for laser perforations in cigarettes. Among them, the adjustable spacing between two rows of perforations has become a new demand in recent years. However, most existing devices are difficult to adjust this spacing. This means that if the brand of cigarettes needs to be changed during the production process, new equipment is required for perforation. This leads to frequent production line changes, reduced work efficiency, and the need to prepare multiple devices for production, which also increases production costs.
[0004] Therefore, a hole spacing adjustment device is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a hole spacing adjustment device. By setting up a double-row beam splitter device, the spacing of the emitted laser can be adjusted, which solves the problem that most existing devices are difficult to adjust this spacing. This would mean that if the cigarette brand needs to be changed during the production process, new equipment would be required for drilling, which would lead to frequent production line changes, reduced work efficiency, and increased production costs due to the need to prepare multiple devices for production.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a double-row beam splitter device, a steering mirror assembly is provided on one side of the double-row beam splitter device, a laser assembly is provided on the side of the steering mirror assembly, a variable diameter pipe assembly is provided on the other side of the double-row beam splitter device, a front steering mirror assembly is provided on the side of the variable diameter pipe assembly away from the double-row beam splitter device, a beam splitter assembly is provided on the side of the front steering mirror assembly away from the variable diameter pipe assembly, and a cigarette is provided below the beam splitter assembly.
[0007] The dual-row beam splitter device includes a dual-row aperture beam splitter assembly, a cover plate, a connecting flange, a connecting base, a fixed slide rail, a guide column, a fine-tooth adjusting screw, and a component slider;
[0008] The dual-row aperture beam splitter assembly includes a semi-transparent lens, a first total reflection lens, a second total reflection lens, and a third total reflection lens.
[0009] Preferably, the side of the connecting base is fixedly connected to the side of the steering mirror assembly, and the side of the fixed slide rail is fixedly connected to the side of the connecting base.
[0010] Preferably, the dual-row aperture beam splitter assembly is located inside the dual-row beam splitter device, the bottom of the cover plate is located above the dual-row beam splitter device, and the bottom of the component slider is located above the fixed slide rail.
[0011] Preferably, one end of the fixed guide post is fixedly connected to the connecting base, and the other end of the fixed guide post passes through the component slider and is slidably connected to the component slider.
[0012] Preferably, the bottom of the dual-row hole beam splitter assembly is fixedly connected to the top of the component slider, and one end of the fine-tooth adjusting screw is rotatably connected to one side of the connecting base.
[0013] Preferably, the fine-tooth adjusting screw passes through the component slider and is threadedly connected to the component slider.
[0014] Preferably, the semi-transparent mirror is located to the side of the dual-row aperture beam splitter assembly, the first total reflection mirror is disposed below the semi-transparent mirror, the third total reflection mirror is disposed to the side of the semi-transparent mirror, and the second total reflection mirror is disposed below the third total reflection mirror.
[0015] Compared with the prior art, the present invention provides a hole spacing adjustment device, which has the following beneficial effects:
[0016] 1. When punching holes in cigarettes, the laser light source received by the rear turning mirror is converted into two sets of light sources by the conversion effect of the semi-transparent lens and the reflective lens in the double-row hole beam splitting assembly. Then, the spacing between the two rows of holes in the cigarette is adjusted by the variable diameter pipe assembly, making the device more flexible and able to handle different brands of cigarettes. There is no need to set up multiple devices, reducing production costs.
[0017] 2. When adjusting the spacing between the two rows of holes, the slider of the moving component can be moved simultaneously without changing the relative position and angle between the lenses. The two laser beams emitted by this device are non-parallel beams. In the state of this device, there is an angle between the two laser beams, but the angle remains unchanged. After moving the lens assembly, the distance from the lens to the cigarette is changed. Since the angle between the two laser beams remains unchanged, but the distance from the lens to the cigarette is changed, the spacing value of the punching holes in the cigarette can be continuously adjusted at a long distance. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial structural schematic diagram of the double-row beam splitter device of this utility model;
[0020] Figure 3 This is a schematic diagram of the light-gathering path of this utility model;
[0021] Figure 4 This is a cross-sectional structural diagram of the double-row beam splitter device of this utility model.
[0022] In the diagram: 1. Double-row beam splitter assembly; 2. Laser assembly; 3. Steering mirror assembly; 4. Variable diameter pipe assembly; 5. Front steering mirror assembly; 6. Beam splitter assembly; 7. Cigarette; 101. Double-row aperture beam splitter assembly; 102. Cover plate; 103. Connecting flange; 105. Connecting base; 106. Fixed slide rail; 107. Guide column; 108. Fine-tooth adjusting screw; 109. Component slider; 1160. Semi-transparent mirror; 1161. Total reflection mirror one; 1162. Total reflection mirror two; 1163. Total reflection mirror three. Detailed Implementation
[0023] 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. Example
[0024] Please see Figure 1 - Figure 4 In this embodiment, a hole spacing adjustment device includes a double-row beam splitter device 1. A steering mirror assembly 3 is provided on one side of the double-row beam splitter device 1, a laser assembly 2 is provided on the side of the steering mirror assembly 3, a variable diameter pipe assembly 4 is provided on the other side of the double-row beam splitter device 1, a front steering mirror assembly 5 is provided on the side of the variable diameter pipe assembly 4 away from the double-row beam splitter device 1, a beam splitter assembly 6 is provided on the side of the front steering mirror assembly 5 away from the variable diameter pipe assembly 4, and a cigarette 7 is provided below the beam splitter assembly 6.
[0025] The double-row beam splitter device 1 includes a double-row aperture beam splitter assembly 101, a cover plate 102, a connecting flange 103, a connecting base 105, a fixed slide rail 106, a guide post 107, a fine-tooth adjusting screw 108, and a component slider 109.
[0026] The dual-row aperture beam splitter assembly 101 includes a semi-transparent mirror 1160, a first total reflection mirror 1161, a second total reflection mirror 1162, and a third total reflection mirror 1163;
[0027] The laser emits a laser of appropriate power, which passes through the laser assembly 2, the rear steering mirror assembly 3, the double-row beam splitter device 1, and the variable diameter pipe assembly 4 to the front steering mirror assembly 5. The laser path is changed again, and the laser beam splitter assembly 6 finally illuminates the cigarette 7, thus completing the implementation of the laser drilling optical path. The double-row hole beam splitter assembly 101 is installed on the component slider 109. The laser light source received by the rear steering mirror 3 is converted into two sets of light sources in the double-row hole beam splitter assembly 101 by the conversion effect of the semi-transparent lens and the reflective lens. The spacing between the two rows of holes in the cigarette is then adjusted by the variable diameter pipe assembly 4.
[0028] At this point, the spacing between the two rows of holes was adjusted to make the device more flexible and able to handle different situations and punch holes for different brands. This eliminates the need to set up multiple devices to punch holes for different brands, reducing production costs.
[0029] The side of the connecting base 105 is fixedly connected to the side of the steering mirror assembly 3, and the side of the fixed slide rail 106 is fixedly connected to the side of the connecting base 105.
[0030] The dual-row aperture beam splitter assembly 101 is located inside the dual-row beam splitter device 1, the bottom of the cover plate 102 is located above the dual-row beam splitter device 1, and the bottom of the component slider 109 is located above the fixed slide rail 106.
[0031] One end of the fixed guide post 107 is fixedly connected to the connecting base 105, and the other end of the fixed guide post 107 passes through the component slider 109 and is slidably connected to the component slider 109.
[0032] The bottom of the dual-row aperture beam splitter assembly 101 is fixedly connected to the top of the component slider 109, and one end of the fine-tooth adjusting screw 108 is rotatably connected to one side of the connecting base 105.
[0033] The fine-pitch adjusting screw 108 passes through the component slider 109 and is threadedly connected to the component slider 109.
[0034] When it is necessary to move the position of the double-row hole beam splitter assembly 101, firstly, turn the fine thread adjusting screw 108. At this time, the fine thread adjusting screw 108 will rotate. Since the component slider 109 and the fine thread adjusting screw 108 are threadedly connected, under the limiting action of the component slider 109, the component slider 109 will move on the fixed slide rail 106. At this time, it will drive the double-row hole beam splitter assembly 101 to move, so as to facilitate the adjustment of the hole gap.
[0035] At this point, the position of the dual-row aperture beam splitter assembly 101 within the dual-row beam splitter device 1 was changed to facilitate adjustment of the laser emission angle, making the device more flexible. When faced with complex situations in reality, the device can cope with them with ease, thus improving work efficiency.
[0036] The semi-transparent mirror 1160 is located on the side of the double-row aperture beam splitter assembly 101. The first total reflection mirror 1161 is located below the semi-transparent mirror 1160. The third total reflection mirror 1163 is located on the side of the semi-transparent mirror 1160. The second total reflection mirror 1162 is located below the third total reflection mirror 1163.
[0037] In this design, the semi-transparent mirror 1160 and the second total reflection mirror 1162 are fixed, while the third total reflection mirror 1163 and the first total reflection mirror 1161 are angle-adjustable. The internal light source of the double-row aperture beam splitter assembly 1100 is oriented such that the incident laser irradiates the fixed semi-transparent mirror 1160, with 50% of the laser power reflected downwards to the first total reflection mirror 1161 and then reflected out of the device, ultimately irradiating the cigarette, thus achieving the function of drilling one row of small holes in the cigarette's double-row aperture. The incident laser irradiates the fixed semi-transparent mirror 1160, with 50% of the laser power transmitted through the semi-transparent mirror 1160 and then irradiating the second total reflection mirror 1161. The light is reflected onto the total reflection mirror 1163, and then reflected out of the device and finally onto the cigarette, thus realizing the function of drilling the other row of small holes in the double row of small holes in the cigarette. When the slider 109 of the moving component is moved, it can be moved simultaneously without changing the relative position and angle between the lenses. The two laser beams emitted from this device are non-parallel beams. In the state of this device, there is an angle between the two laser beams, but the angle remains unchanged. After moving the lens assembly, the distance between the lens and the cigarette is changed. Since the angle between the two laser beams remains unchanged, but the distance between the lens and the cigarette is changed, the value of the hole spacing of the cigarette can be continuously adjusted at a long distance.
[0038] At this point, the emitted laser was adjusted to improve the processing effect of the device on different types of cigarettes, allowing for flexible processing of various cigarette models and increasing production efficiency.
[0039] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections.
[0040] Any connection method that can achieve its beneficial effect can be implemented, so the specific structural composition and working principle will not be described in detail in this embodiment.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hole spacing adjustment device, characterized in that: The device includes a double-row beam splitter device (1), a steering mirror assembly (3) is provided on one side of the double-row beam splitter device (1), a laser assembly (2) is provided on the side of the steering mirror assembly (3), a variable diameter pipe assembly (4) is provided on the other side of the double-row beam splitter device (1), a front steering mirror assembly (5) is provided on the side of the variable diameter pipe assembly (4) away from the double-row beam splitter device (1), a beam splitter assembly (6) is provided on the side of the front steering mirror assembly (5) away from the variable diameter pipe assembly (4), and a cigarette (7) is provided below the beam splitter assembly (6). The dual-row beam splitter device (1) includes a dual-row aperture beam splitter assembly (101), a cover plate (102), a connecting flange (103), a connecting base (105), a fixed slide rail (106), a guide post (107), a fine-tooth adjusting screw (108), and a component slider (109). The dual-row aperture beam splitter assembly (101) includes a semi-transparent mirror (1160), a first total reflection mirror (1161), a second total reflection mirror (1162), and a third total reflection mirror (1163).
2. The hole spacing adjustment device according to claim 1, characterized in that: The side of the connecting base (105) is fixedly connected to the side of the steering mirror assembly (3), and the side of the fixed slide rail (106) is fixedly connected to the side of the connecting base (105).
3. The hole spacing adjustment device according to claim 2, characterized in that: The dual-row aperture beam splitter assembly (101) is located inside the dual-row beam splitter device (1), the bottom of the cover plate (102) is located above the dual-row beam splitter device (1), and the bottom of the component slider (109) is located above the fixed slide rail (106).
4. The hole spacing adjustment device according to claim 1, characterized in that: One end of the fixed guide post (107) is fixedly connected to the connecting base (105), and one end of the fixed guide post (107) passes through the component slider (109) and is slidably connected to the component slider (109).
5. The hole spacing adjustment device according to claim 4, characterized in that: The bottom of the dual-row aperture beam splitter assembly (101) is fixedly connected to the top of the component slider (109), and one end of the fine-tooth adjusting screw (108) is rotatably connected to one side of the connecting base (105).
6. The hole spacing adjustment device according to claim 5, characterized in that: The fine-tooth adjusting screw (108) passes through the component slider (109) and is threadedly connected to the component slider (109).
7. The hole spacing adjustment device according to claim 1, characterized in that: The semi-transparent mirror (1160) is located to the side of the dual-row aperture beam splitter assembly (101), the first total reflection mirror (1161) is disposed below the semi-transparent mirror (1160), the third total reflection mirror (1163) is disposed to the side of the semi-transparent mirror (1160), and the second total reflection mirror (1162) is disposed below the third total reflection mirror (1163).