A filter rod laser small hole spacing adjusting device

By designing the inner steering mirror assembly and the adjustable reflector plate, flexible hole spacing adjustment of the laser drilling equipment is achieved, solving the problem that existing equipment cannot adjust the drilling position, reducing production costs and improving work efficiency.

CN224333697UActive Publication Date: 2026-06-09HUAIAN TIANCHI TECH

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
2026-06-09

AI Technical Summary

Technical Problem

Existing laser drilling equipment is difficult to adjust the drilling position, which means that additional equipment is needed when changing cigarette brands, increasing production costs.

Method used

The internal steering mirror assembly is designed to form two sets of light sources by converting a semi-transparent mirror and a reflective mirror. Combined with a variable diameter pipe assembly, the spacing between the two rows of holes in the cigarette is adjusted. The laser emission angle is adjusted using an adjustable reflector plate and adjusting bolts, thus achieving flexible hole spacing adjustment.

Benefits of technology

It improves the applicability and efficiency of the device, reduces production costs, and can flexibly meet the needs of different brands and models of cigarettes without the need to prepare a special device for each model.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224333697U_ABST
    Figure CN224333697U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of tobacco processing technology, specifically to a filter rod laser perforation spacing adjustment device, including a rear steering mirror assembly. A laser assembly is disposed on one side of the rear steering mirror assembly, and a variable diameter pipe assembly is disposed on the other side of the rear steering mirror assembly. A front steering mirror assembly is disposed on the side of the variable diameter pipe assembly away from the rear steering mirror assembly. This utility model, through the design of the inner steering mirror assembly, can adjust the spacing of the two rows of perforations. It solves the problem that existing laser drilling equipment can typically only perform laser drilling at fixed positions on cigarette filter rods, making it difficult to adjust the drilling position. Furthermore, different brands of cigarettes require different drilling positions and spacings, necessitating the addition of a new drilling device each time a cigarette brand is changed, significantly increasing production costs.
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Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, specifically to a filter rod laser aperture spacing adjustment device. Background Technology

[0002] In modern cigarette production, reducing tar content and improving smoking safety and taste have become primary goals. Laser perforation of the tipping paper is a key technology for reducing tar and harm in cigarettes. The method involves using an online laser perforation device to punch through the tipping paper in the middle of the cigarette filter, creating tiny holes. When a consumer smokes the cigarette, some air enters through these small holes, effectively diluting the smoke and thus achieving a tar reduction effect.

[0003] However, existing laser drilling equipment can usually only drill holes in fixed positions on cigarette filters, making it difficult to adjust the drilling position. Different brands of cigarettes require different drilling positions and spacings. This means that if a different brand of cigarette is used, an additional drilling device adapted to that brand is needed, which greatly increases production costs.

[0004] Therefore, a filter rod laser aperture 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 filter rod laser hole spacing adjustment device. By designing an inner steering mirror assembly, the spacing between the two rows of holes can be adjusted. This solves the problem that existing laser drilling equipment can usually only perform laser drilling at fixed positions on cigarette filter rods, making it difficult to adjust the drilling position. Different brands of cigarettes require different drilling positions and spacings, which means that when changing a cigarette brand, a new drilling device adapted to that brand is needed, which greatly increases production costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rear steering mirror assembly is provided, a laser assembly is provided on one side of the rear steering mirror assembly, a variable diameter pipe assembly is provided on the other side of the rear steering mirror assembly, a front steering mirror assembly is provided on the side of the variable diameter pipe assembly away from the rear steering mirror assembly, a beam splitter assembly is provided on the side of the front steering mirror assembly, and a cigarette is provided below the beam splitter assembly.

[0007] The laser assembly includes an inner steering mirror assembly, a corner seat, a dynamometer assembly, a cover plate, a housing, a sealing cover, and an assembly base;

[0008] The internal steering mirror assembly includes a semi-transparent mirror base, a reflector base, a fixed reflector base, a fixed reflector plate, a fixed semi-transparent mirror plate, at least two adjustable reflector plates, at least two adjusting bolts, at least two tightening nuts, at least two connecting bolts, and at least two beam splitter compression springs.

[0009] Preferably, the internal steering mirror assembly is fixedly installed on the inner wall of the housing, the bottom of the housing is fixedly connected to the top of the component base, the cover plate is located on the top of the housing and fixedly connected to the housing, the corner seat is disposed on the other side of the housing, the dynamometer assembly is located on the side of the housing, and the dynamometer assembly is located below the corner seat.

[0010] Preferably, the semi-transparent mirror base is fixedly connected to the inner wall of the housing, the two connecting bolts are centrally symmetrically distributed, the two adjustable reflector plates are centrally symmetrically distributed, the connecting bolts are located on the side of the adjustable reflector plate, the adjustable reflector plate is connected to the reflector base by a cylindrical pin, the two adjusting bolts are centrally symmetrically distributed, the adjusting bolts pass through the adjustable reflector plate and are threadedly connected to the adjustable reflector plate.

[0011] Preferably, the two tightening nuts are centrally symmetrically distributed, the tightening nuts are sleeved on the outer wall of the adjusting bolt and threadedly connected to the adjusting bolt, and an end ball is fixedly connected to one end of the adjusting bolt that passes through the adjustable reflector plate.

[0012] Preferably, the fixed semi-transparent lens plate is fixedly connected to the semi-transparent lens base, the two beam splitter clamping springs are symmetrically distributed, the beam splitter clamping springs are located on the side of the fixed semi-transparent lens plate, the fixed reflector base is fixedly connected to the side of the housing, and the fixed reflector plate is fixedly connected to the side of the fixed reflector base.

[0013] Preferably, a total reflection mirror second is provided on the side of the fixed reflector plate, a total reflection mirror first is provided on the side of one of the adjustable reflector plates, and a total reflection mirror third is provided on the side of the other adjustable reflector plate.

[0014] Preferably, a semi-transparent lens is provided on the side of the fixed semi-transparent lens plate, a countersunk bolt is fixedly connected to the side of the reflector base, a compression spring is sleeved on the outer wall of the countersunk bolt, one end of the compression spring is fixedly connected to the side of the reflector base, a fixed base is provided inside the housing, and both the semi-transparent lens base and the fixed reflector base are located above the fixed base.

[0015] Compared with the prior art, this utility model provides a filter rod laser aperture spacing adjustment device, which has the following beneficial effects:

[0016] 1. When adjusting the spacing between the two rows, the laser light source of the receiving corner seat is converted into two sets of light sources in the inner steering mirror assembly by the conversion effect of the semi-transparent lens and the reflective lens. Then, the light source enters the variable diameter pipe assembly through the inner hole of the sealing cover to complete the adjustment of the spacing between the two rows of holes of the cigarette, making the device more flexible and improving its applicability.

[0017] 2. When it is necessary to adjust the laser emission angle and thus the spacing between the two rows of holes in the cigarette, first loosen and tighten the nut, then rotate the adjusting bolt. This will cause the adjustable reflector base to change its angle, and ultimately cause the total reflection mirror installed in the adjustable reflector base to change its angle, thereby adjusting the laser emission angle and thus the spacing between the two rows of holes in the cigarette. Adjusting the spacing is more convenient and can be completed without complicated operations. 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 schematic diagram of the rear steering mirror assembly structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the internal steering mirror of this utility model;

[0021] Figure 4 This is a schematic diagram of the light source orientation structure of the internal steering mirror of this utility model;

[0022] Figure 5 This is a schematic diagram of the fine-tuning structure of the inner steering mirror of this utility model.

[0023] In the diagram: 1. Rear steering mirror assembly; 2. Laser assembly; 3. Variable diameter pipe assembly; 4. Front steering mirror assembly; 5. Beam splitter assembly; 6. Cigarette; 1160. Semi-transparent mirror; 1161. Total reflection mirror one; 1162. Total reflection mirror two; 1163. Total reflection mirror three; 1100. Inner steering mirror assembly; 1200. Corner seat; 1300. Dynamometer assembly; 1400. Cover plate; 1500. Sealing cover; 1600. Housing; 1700. Component base; 1101, semi-transparent mirror base; 1102, reflector base; 1103, fixed reflector base; 1105, fixed reflector plate; 1106, fixed semi-transparent mirror plate; 1107, adjustable reflector plate; 1110, adjusting bolt; 1111, tightening nut; 1112, connecting bolt; 1113, end bearing steel ball; 1114, compression spring; 1115, countersunk bolt; 1122, beam splitter compression spring; 1123, fixed base. Detailed Implementation

[0024] 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.

[0025] Example:

[0026] Please see Figure 1 - Figure 5 The filter rod laser aperture spacing adjustment device in this embodiment includes a rear steering mirror assembly 1, a laser assembly 2 is provided on one side of the rear steering mirror assembly 1, a variable diameter pipe assembly 3 is provided on the other side of the rear steering mirror assembly 1, a front steering mirror assembly 4 is provided on the side of the variable diameter pipe assembly 3 away from the rear steering mirror assembly 1, a beam splitter assembly 5 is provided on the side of the front steering mirror assembly 4, and a cigarette 6 is provided below the beam splitter assembly 5.

[0027] The laser assembly 2 includes an inner steering mirror assembly 1100, a corner seat 1200, a dynamometer assembly 1300, a cover plate 1400, a housing 1600, a sealing cover 1500, and an assembly base 1700;

[0028] The internal steering mirror assembly 1100 includes a semi-transparent mirror base 1101, a reflector base 1102, a fixed reflector base 1103, a fixed reflector plate 1105, a fixed semi-transparent mirror plate 1106, at least two adjustable reflector plates 1107, at least two adjusting bolts 1110, at least two tightening nuts 1111, at least two connecting bolts 1112, and at least two beam splitter compression springs 1122;

[0029] In the process of drilling holes in cigarette 6, the laser generated by the laser assembly 2 passes through the rear steering mirror assembly 1, then through the variable diameter pipe assembly 3 to the front steering mirror assembly 4, and the laser path is changed again. Finally, the laser beam is irradiated onto the cigarette 6 through the beam splitter assembly 5, thus completing the implementation of the laser drilling optical path. After the laser comes out of the laser, it is split and turned until it finally irradiates the end of the cigarette to achieve multi-row drilling. The inner steering mirror assembly 1100 is installed on the inner side wall of the housing 1600. By receiving the laser light source from the corner seat 1200, the inner steering mirror assembly 1100 forms two sets of light sources with the help of the conversion of the semi-transparent lens and the reflective lens. Then, the light enters the variable diameter pipe assembly 3 through the inner hole of the sealing cover 1500 to complete the adjustment of the spacing between the two rows of holes in the cigarette.

[0030] At this point, the spacing between the holes was adjusted, making the device more flexible and able to handle more complex situations. When producing different models and brands of cigarettes, it can be handled with ease, without the need to prepare a device for each different model of cigarette, thus reducing production costs.

[0031] The interior steering mirror assembly 1100 is fixedly installed on the inner wall of the housing 1600. The bottom of the housing 1600 is fixedly connected to the top of the component base 1700. The cover plate 1400 is located on the top of the housing 1600 and is fixedly connected to the housing 1600. The corner seat 1200 is located on the other side of the housing 1600. The dynamometer assembly 1300 is located on the side of the housing 1600 and below the corner seat 1200.

[0032] The semi-transparent mirror base 1101 is fixedly connected to the inner wall of the housing 1600. Two connecting bolts 1112 are centrally symmetrically distributed. Two adjustable reflector plates 1107 are centrally symmetrically distributed. The connecting bolts 1112 are located on the side of the adjustable reflector plate 1107. The adjustable reflector plate 1107 is connected to the reflector base 1102 by a cylindrical pin. Two adjusting bolts 1110 are centrally symmetrically distributed. The adjusting bolts 1110 pass through the adjustable reflector plate 1107 and are threadedly connected to the adjustable reflector plate 1107.

[0033] Two tightening nuts 1111 are centrally symmetrically distributed. The tightening nuts 1111 are sleeved on the outer wall of the adjusting bolt 1110 and threadedly connected to the adjusting bolt 1110. The adjusting bolt 1110 is fixedly connected to a steel ball 1113 at one end that passes through the adjustable reflector plate 1107.

[0034] The fixed semi-transparent lens plate 1106 is fixedly connected to the semi-transparent lens base 1101. The two beam splitter clamping springs 1122 are symmetrically distributed. The beam splitter clamping springs 1122 are located on the side of the fixed semi-transparent lens plate 1106. The fixed reflector base 1103 is fixedly connected to the side of the housing 1600. The fixed reflector plate 1105 is fixedly connected to the side of the fixed reflector base 1103.

[0035] The adjustable reflector mount 1102 in the inner steering mirror assembly 1100 has the same diagonal dimensions on the upper line. During adjustment, the precision and stability of fine-tuning are ensured by adjusting the bolts 1110 and tightening the nuts 1111. Taking the adjustable reflector mount 1102 in the lower left corner as an example, the adjustable reflector mount 1102 is fixedly installed to the adjustable reflector plate 1107 by bolts. The adjustable reflector plate 1107 is fixed to the base 1123 by a cylindrical pin, allowing it to rotate freely and serving as the rotation center for angle adjustment. To ensure consistency of the initial position of fine adjustment, two sets of connecting bolts 1112 and the semi-transparent mirror base 1101 are connected with gaps to achieve the initial position. Two sets of countersunk bolts 1115 press against the compression spring 1114 to generate a reaction force. The adjusting bolt 1110 is rotated for fine adjustment. The end is in point contact with the fixed base 1123 by the steel ball 1113. After adjusting to an appropriate angle, the adjustable reflector base 1102 is fixed by tightening the nut 1111 to ensure the stability of the cover mirror 1108. The same applies to diagonal fine adjustment.

[0036] At this point, the total reflection mirror 1161 and the total reflection mirror 3163 were adjusted to adjust the angle of the laser beam. The spacing between the holes in the cigarette 6 was adjusted. Moreover, the adjustment method is relatively convenient and can be completed quickly without complicated operations, reducing the time required for adjustment and improving work efficiency.

[0037] A total reflection mirror 1162 is provided on the side of the fixed reflector plate 1105, a total reflection mirror 1161 is provided on the side of one of the adjustable reflector plates 1107, and a total reflection mirror 1163 is provided on the side of the other adjustable reflector plate 1107.

[0038] A semi-transparent lens 1160 is provided on the side of the fixed semi-transparent lens plate 1106, and a countersunk bolt 1115 is fixedly connected to the side of the reflector base 1102. A compression spring 1114 is sleeved on the outer wall of the countersunk bolt 1115, and one end of the compression spring 1114 is fixedly connected to the side of the reflector base 1102. A fixed base 1123 is provided inside the housing 1600, and both the semi-transparent lens base 1101 and the fixed reflector base 1103 are located above the fixed base 1123.

[0039] When adjusting the spacing of the lasers mounted on the cigarette 6, the incident laser irradiates the fixed semi-transparent mirror 1160. 50% of the laser power is reflected downwards to the total reflection mirror 1161 and then reflected out of the device, finally irradiating the cigarette to achieve the drilling function of one row of small holes in the double row of small holes on the cigarette. The incident laser irradiates the fixed semi-transparent mirror 1160, and 50% of the laser power is transmitted through the semi-transparent mirror 1160 and irradiates the total reflection mirror 1162, and then reflected to the total reflection mirror 1163. The laser beams emitted by this device are reflected by the total reflection mirror 1163 and finally irradiate the cigarette, realizing the function of drilling the other row of small holes in the double row of small holes in the cigarette. The two laser beams emitted by this device are non-parallel beams, and there is an angle between the two laser beams. By adjusting the angle of the total reflection mirrors 1161 and 1163, the angle between the two laser beams can be adjusted, thereby realizing the continuous adjustment of the spacing value of the cigarette drilling at a long distance. At this time, when it is necessary to adjust the laser emission angle and thus adjust the spacing between the two rows of holes in the cigarette, first loosen and tighten the nut 1111, and then rotate the adjusting bolt 1110. This will drive the adjustable reflector base 1102 to change the angle, and finally drive the total reflection mirror 1163 installed in the adjustable reflector base 1102 to change the angle, thereby achieving the purpose of adjusting the laser emission angle and thus adjusting the spacing between the two rows of holes in the cigarette.

[0040] At this point, the spacing between the two rows of holes in cigarette 6 was adjusted, making the device more flexible and improving work efficiency. Furthermore, it allows for convenient adjustment of the total reflection mirror 1163 and the total reflection mirror 1161, further enhancing the device's work efficiency.

[0041] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0042] 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 filter rod laser pinhole spacing adjustment device, characterized in that: The system includes a rear steering mirror assembly (1), a laser assembly (2) is provided on one side of the rear steering mirror assembly (1), a variable diameter pipe assembly (3) is provided on the other side of the rear steering mirror assembly (1), a front steering mirror assembly (4) is provided on the side of the variable diameter pipe assembly (3) away from the rear steering mirror assembly (1), a beam splitter assembly (5) is provided on the side of the front steering mirror assembly (4), and a cigarette (6) is provided below the beam splitter assembly (5). The laser assembly (2) includes an inner steering mirror assembly (1100), a corner seat (1200), a dynamometer assembly (1300), a cover plate (1400), a housing (1600), a sealing cover (1500), and an assembly base (1700). The inner steering mirror assembly (1100) includes a semi-transparent mirror base (1101), a reflector base (1102), a fixed reflector base (1103), a fixed reflector plate (1105), a fixed semi-transparent mirror plate (1106), at least two adjustable reflector plates (1107), at least two adjusting bolts (1110), at least two tightening nuts (1111), at least two connecting bolts (1112), and at least two beam splitter compression springs (1122).

2. The filter rod laser aperture spacing adjustment device according to claim 1, characterized in that: The inner steering mirror assembly (1100) is fixedly installed on the inner wall of the housing (1600). The bottom of the housing (1600) is fixedly connected to the top of the component base (1700). The cover plate (1400) is located on the top of the housing (1600) and is fixedly connected to the housing (1600). The corner seat (1200) is located on the other side of the housing (1600). The dynamometer assembly (1300) is located on the side of the housing (1600) and below the corner seat (1200).

3. The filter rod laser aperture spacing adjustment device according to claim 2, characterized in that: The semi-transparent mirror base (1101) is fixedly connected to the inner wall of the housing (1600). The two connecting bolts (1112) are centrally symmetrically distributed. The two adjustable reflector plates (1107) are centrally symmetrically distributed. The connecting bolts (1112) are located on the side of the adjustable reflector plate (1107). The adjustable reflector plate (1107) is connected to the reflector base (1102) by a cylindrical pin. The two adjusting bolts (1110) are centrally symmetrically distributed. The adjusting bolts (1110) pass through the adjustable reflector plate (1107) and are threadedly connected to the adjustable reflector plate (1107).

4. The filter rod laser aperture spacing adjustment device according to claim 3, characterized in that: The two tightening nuts (1111) are centrally symmetrically distributed. The tightening nuts (1111) are sleeved on the outer wall of the adjusting bolt (1110) and threadedly connected to the adjusting bolt (1110). The adjusting bolt (1110) has a steel ball (1113) fixedly connected to one end of the adjustable reflector plate (1107).

5. The filter rod laser aperture spacing adjustment device according to claim 4, characterized in that: The fixed semi-transparent lens plate (1106) is fixedly connected to the semi-transparent lens base (1101). The two beam splitter clamping springs (1122) are symmetrically distributed. The beam splitter clamping springs (1122) are located on the side of the fixed semi-transparent lens plate (1106). The fixed reflector base (1103) is fixedly connected to the side of the housing (1600). The fixed reflector plate (1105) is fixedly connected to the side of the fixed reflector base (1103).

6. The filter rod laser pinhole spacing adjustment device according to claim 5, characterized in that: The fixed reflector plate (1105) is provided with a total reflection mirror second (1162) on its side, one of the adjustable reflector plates (1107) is provided with a total reflection mirror first (1161) on its side, and the other adjustable reflector plate (1107) is provided with a total reflection mirror third (1163) on its side.

7. The filter rod laser aperture spacing adjustment device according to claim 6, characterized in that: The side of the fixed semi-transparent lens plate (1106) is provided with a semi-transparent lens piece (1160), and the side of the reflector base (1102) is fixedly connected with a countersunk bolt (1115). A compression spring (1114) is sleeved on the outer wall of the countersunk bolt (1115). One end of the compression spring (1114) is fixedly connected to the side of the reflector base (1102). A fixed base (1123) is provided inside the housing (1600). The semi-transparent lens base (1101) and the fixed reflector base (1103) are both located above the fixed base (1123).