High-precision focusing adjustment and smudginess-resistant laser drilling head device
By designing the worm gear and worm adjustment structure and positive pressure airflow anti-fouling measures in the cigarette machine, the problems of inaccurate focus and dirty stains of laser drilling equipment are solved, and a high-precision focusing and dirt-resistant laser drilling head device is realized, which improves the Product quality and maintenance ease.
Patent Information
- Application Number
- CN202420728378.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing laser hole drilling equipment of cigarette machines cannot achieve high-precision focus during debugging, use and maintenance, and is not resistant to dirt, affecting product quality.
A high-precision focusing adjustment and dirt-resistant laser drilling head device including worm gear, worm gear, focusing cylinder, lens gland, focus mirror and air cup is designed. The worm gear and worm adjustment structure is used to realize the precise adjustment of the focusing mirror, and through Positive airflow prevents the lens from being dirty.
It realizes high-precision focusing adjustment, simple structure and convenient maintenance, can achieve 0.02mm focus accuracy, and is resistant to dirt, avoiding the lens being contaminated by dust and tobacco debris.
Smart Images
Figure CN222243146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tobacco machinery automation, in particular to a high-precision focus adjustment and dirt-resistant laser drilling head device. Background Art
[0002] Cigarette making machine is a machine that rolls tobacco into cigarettes with cigarette paper. It is the main cigarette making machine. With the improvement of living standards, people are beginning to pay attention to the harm of cigarettes to the human body while satisfying the sensory stimulation of cigarettes. Reducing the tar content of cigarettes has become a development trend in the tobacco industry. Further reducing the tar content of cigarettes, improving the technical content of products, and increasing product added value, thereby expanding market consumption and improving economic benefits. This is the only way for cigarette companies to survive and develop in competition. Online laser punching technology for cigarettes is an economical, fast and effective means of reducing tar. It is a high-energy laser that punches through the tipping paper or cigarette paper in the cigarette tip section or cigarette section during the cigarette rolling process; forming tiny holes, which dilute the smoke during the smoking process, thereby reducing the tar content and reducing the adverse effects on the human body and the environment.
[0003] One of the key points of laser drilling is focusing. If the focusing is not accurate, the hole cannot be drilled through, which directly affects the product quality. During the debugging, use and maintenance of the current laser drilling equipment for cigarette making machines, the focus adjustment is completely dependent on the manual work of experienced relevant staff, and it is impossible to focus accurately. Utility Model Content
[0004] The utility model aims to overcome the deficiencies of the prior art and provide a laser drilling head device which is simple to maintain, convenient to adjust, capable of high-precision focusing adjustment and resistant to dirt.
[0005] The utility model provides a high-precision focus adjustment and dirt-resistant laser drilling head device, and its technical solution is:
[0006] A high-precision focus adjustment and dirt-resistant laser drilling head device comprises a base (1) and a mask (2), wherein the mask (2) is connected to the base (1), and further comprises a worm (3), a worm wheel (4), a focusing tube (9), a lens pressure cover (10), a focusing mirror (11), and an air cup (13) installed in the mask (2); the focusing mirror (11) is fixed to the bottom end of the focusing tube (9) through the lens pressure cover (10), the worm (3) and the worm wheel (4) constitute a worm gear adjustment structure, and the focusing mirror (11) is adjusted through the worm gear adjustment structure; and a positive pressure airflow is passed through the interior of the drilling head device.
[0007] Specifically, the worm gear (4) is mounted on the worm gear shaft (5), the worm gear (4) is positioned and mounted in the base (1) through a spacer sleeve (6), a first bearing (7), and a pressure cover (8), and the focusing tube (9) is connected to the worm gear shaft (5) through a fine thread.
[0008] Specifically, the punching head device further comprises a positioning column (12), the positioning column (12) being installed in the base (1), and the two sides of the focusing tube (9) are circumferentially limited by the positioning column (12).
[0009] Specifically, the worm (3) is installed in the base (1) through the second bearing (15) and the blocking cover (14).
[0010] Specifically, the worm (3) is adjusted by means of 3 mm hexagonal wrench grooves provided on both sides.
[0011] Specifically, the gas cup (13) and the mask (2) are fixed via a threaded connection.
[0012] Specifically, the mask (2) is connected to the base (1) via screws.
[0013] Specifically, the worm (3) is meshed with the worm wheel (4) with a transmission ratio of 25:1.
[0014] Specifically, the worm gear (4), the focusing tube (9), the focusing lens (11), and the gas cup (13) are installed on the same axis.
[0015] Specifically, the positive pressure airflow generated by the positive pressure device is connected to the inside of the coring head device through a pipeline.
[0016] The implementation of this utility model includes the following technical effects:
[0017] The high-precision focus adjustment and dirt-resistant laser drilling head device provided by the utility model has a simple structure, convenient adjustment and maintenance, and can achieve a focus adjustment of 0.02mm. Another key point is that lens dirt affects the drilling quality. Most laser drilling heads on the market are not dirt-resistant, or have complex structures, or are inconvenient to maintain. The device provided by the utility model has a simple structure, is easy to maintain, and is dirt-resistant. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a three-dimensional appearance diagram of a high-precision focus adjustment and dirt-resistant laser drilling head device according to an embodiment of the utility model.
[0019] Figure 2 This is a schematic diagram of the internal structure of a high-precision focus adjustment and dirt-resistant laser drilling head device according to an embodiment of the utility model.
[0020] Figure 3 for Figure 2 Schematic diagram of the BB cross-section.
[0021] Figure 4 This is a stereoscopic diagram of the internal structure of the high-precision focusing adjustment and dirt-resistant laser drilling head device of the embodiment of the utility model.
[0022] Figure 5 A schematic diagram of the focusing lens barrel structure of the utility model device.
[0023] Figure 6 for Figure 5 Schematic diagram of the AA cross-section structure of the focusing lens barrel.
[0024] Figure 7 The figure is a schematic diagram of the worm structure of the device of the utility model.
[0025] In the figure: wherein: 1-base, 2-mask, 3-worm, 4-worm gear, 5-worm gear shaft, 6-spacer, 7-first bearing, 8-pressure cover, 9-focusing tube, 10-lens pressure cover, 11-focusing lens, 12-positioning column, 13-gas cup, 14-blocking cover, 15-second bearing. DETAILED DESCRIPTION
[0026] The present invention will be described in detail below in conjunction with embodiments and drawings. It should be pointed out that the described embodiments are only intended to facilitate the understanding of the present invention and do not have any limiting effect on the present invention.
[0027] See also Figures 1 to 7 As shown, a high-precision focus adjustment and dirt-resistant laser drilling head device of this embodiment includes a base 1 and a mask 2, wherein the mask 2 is connected to the base 1, and further includes a worm 3, a worm wheel 4, a focusing barrel 9, a lens pressure cover 10, a focusing lens 11, and an air cup 13 installed in the mask 2; the focusing lens 11 is fixed to the bottom end of the focusing barrel 9 through the lens pressure cover 10, and the worm 3 and the worm wheel 4 constitute a worm wheel adjustment structure, and the focusing lens 11 is adjusted by the worm wheel adjustment structure; a positive pressure airflow is passed through the inside of the drilling head device. Specifically, the worm wheel 4 is installed on the worm wheel shaft 5, and the worm wheel 4 is positioned and installed in the base 1 through the spacer 6, the first bearing 7, and the pressure cover 8, and the focusing barrel 9 is connected to the worm wheel shaft 5 through a fine thread. The drilling head device also includes a positioning column 12, which is installed in the base 1, and the two sides of the focusing barrel 9 are circumferentially limited by the positioning column 12 to ensure the circumferential installation accuracy of the focusing barrel 9. The worm 3 is installed in the base 1 through the second bearing 15 and the stop cover 14. The worm 3 is adjusted by the 3mm hexagonal wrench grooves on both sides. The gas cup 13 is fixed to the mask 2 by threaded connection. The mask 2 is connected to the base 1 by screws. The positive pressure airflow generated by the positive pressure device is connected to the inside of the punching head device through a pipeline. Preferably, the worm 3 is meshed with the worm wheel 4, and the transmission ratio is 25:1. The worm wheel 4, the focusing tube 9, the focusing lens 11, and the gas cup 13 are installed on the same axis.
[0028] The utility model discloses a high-precision focusing adjustment and dirt-resistant laser drilling head device, and its working principle is as follows: the focusing lens 11 is installed in the focusing barrel 9; the focusing barrel 9 is connected to the worm gear shaft 5 through a fine thread, and is positioned by pushing into the grooves on both sides through the positioning column 12 in the circumferential direction; the worm 3 is meshed with the worm wheel 4, and the transmission ratio is preferably 25:1. When adjusting, insert a 3mm hexagonal wrench into the groove at the end of the worm 3 through the baffle 14 and rotate it. According to the needs, refer to the direction indicated by the baffle 14 to rotate the wrench clockwise or counterclockwise, and twist the worm 3 to adjust the focusing barrel 9 up and down, that is, to adjust the focus. When the worm rotates 25 times, the worm wheel rotates 1 time, and the focusing lens barrel 9 moves 1 tooth 0.5mm axially along the worm wheel shaft 5. When the worm rotates one circle, the focusing lens barrel 9 is adjusted 0.02mm axially along the worm wheel shaft 5. The gas cup 13 is fixed to the mask 2 by threaded connection, and the mask 2 is connected to the base 1 by screws. Positive pressure airflow passes through the inside, and dust and related tobacco debris cannot enter the mask, thereby achieving the function of preventing the lens from being dirty.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A high-precision focus adjustment and dirt-resistant laser drilling head device, characterized in that: The device comprises a base (1) and a mask (2), wherein the mask (2) is connected to the base (1), and further comprises a worm (3), a worm wheel (4), a focusing tube (9), a lens pressure cover (10), a focusing mirror (11) installed in the base (1), and an air cup (13) installed in the mask (2); the focusing mirror (11) is fixed to the bottom end of the focusing tube (9) through the lens pressure cover (10); the worm (3) and the worm wheel (4) constitute a worm wheel adjustment structure, and the focusing mirror (11) is adjusted through the worm wheel adjustment structure; and a positive pressure airflow is passed through the interior of the punching head device.
2. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The worm wheel (4) is mounted on the worm wheel shaft (5), and the worm wheel (4) is positioned and mounted in the base (1) through a spacer sleeve (6), a first bearing (7), and a pressure cover (8), and the focusing tube (9) is connected to the worm wheel shaft (5) through a fine thread.
3. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The punching head device also includes a positioning column (12), which is installed in the base (1), and the two sides of the focusing tube (9) are circumferentially limited by the positioning column (12).
4. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The worm (3) is installed in the base (1) through a second bearing (15) and a blocking cover (14).
5. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The worm screw (3) is adjusted using the 3 mm hexagon socket wrench recesses on both sides.
6. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The gas cup (13) and the mask (2) are fixed by threaded connection.
7. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The mask (2) is connected to the base (1) via screws.
8. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The worm (3) is meshed with the worm wheel (4) with a transmission ratio of 25:
1.
9. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The worm gear (4), the focusing tube (9), the focusing mirror (11) and the gas cup (13) are installed on the same axis.
10. The high-precision focus adjustment and dirt-resistant laser drilling head device according to claim 1, characterized in that: The positive pressure airflow generated by the positive pressure device is connected to the inside of the coring head device through a pipeline.