Laser drilling device for cigarette making machine

Abstract

The utility model discloses a laser drilling device for a cigarette making machine, which belongs to the technical field of cigarette making machines and comprises a laser transmitter. The laser controller is provided with a receiving end and a transmitting end, the receiving end is suitable for receiving the laser transmitted by the laser transmitter, the laser transmitter is suitable for dispersing the laser into multiple beams and / or changing the angle of the laser, and the dispersed multiple beams of laser and / or the angle-changed laser are / is emitted from the transmitting end; the focuser is suitable for receiving and focusing the laser emitted by the emitting end, and the focus of the focuser is located on the peripheral wall of the cigarette. According to the laser drilling device for the cigarette making machine, through accurate control of the laser controller, high-precision drilling on the surface of a cigarette can be achieved, it is guaranteed that the position and the shape of each hole meet the design requirement, the laser controller can disperse laser into multiple beams or change the angle of the laser, and the laser drilling efficiency is improved. Therefore, synchronous punching of a plurality of holes or punching of holes in different shapes is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette machine technology, specifically relating to a laser drilling device for cigarette machines. Background Technology

[0002] In related technologies, as living standards improve, people are increasingly concerned about the potential harm to human health while enjoying the sensory stimulation brought by cigarettes. Online laser perforation technology for cigarettes, as an economical, fast and effective means of reducing tar, is gradually gaining attention. At present, although laser perforation technology is booming, its perforation method is relatively simple and it is difficult to meet the growing personalized needs of consumers. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a laser drilling device for cigarette making machines.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a laser drilling device for cigarette making machines, comprising: a laser emitter; a laser controller having a receiving end and an emitting end, the receiving end being adapted to receive laser light emitted by the laser emitter, the laser emitter being adapted to disperse the laser light into multiple beams and / or change the angle of the laser light, the dispersed multiple laser beams and / or the laser light with changed angles exiting from the emitting end; and a focuser adapted to receive and focus the laser light exiting from the emitting end, the focal point of the focuser being located on the outer peripheral wall of the cigarette.

[0006] According to the present invention, a laser drilling device for cigarette machines can achieve high-precision drilling on the surface of cigarettes through the precise control of a laser controller, ensuring that the position and shape of each hole meet the design requirements. Moreover, the laser controller can disperse the laser into multiple beams or change the laser angle to achieve simultaneous drilling of multiple holes or drilling holes of different shapes (such as circles, squares, ovals, etc.). At the same time, by adjusting the parameters of the laser controller, the shape and size of the holes can be easily changed to meet the personalized needs of different products. Of course, during the laser drilling process, the laser is precisely controlled and focused, reducing unnecessary heat-affected zones, reducing damage to cigarette materials, and improving production safety.

[0007] Furthermore, the laser emitter includes: a housing, wherein an installation space is provided within the housing, and the laser emitter is disposed within the installation space; and a galvanometer assembly, wherein the galvanometer assembly is disposed within the installation space and is adapted to receive and reflect the laser emitted by the laser emitter.

[0008] Furthermore, the galvanometer assembly includes: a first galvanometer configured as the receiving end, the first galvanometer adapted to receive and reflect laser light emitted by the laser emitter, the first galvanometer selectively rotating in a first direction; and a second galvanometer configured as the transmitting end, the second galvanometer adapted to receive and reflect laser light reflected by the first galvanometer, the second galvanometer selectively rotating in a second direction.

[0009] Furthermore, the galvanometer assembly further includes: a first motor having a rotatable first output terminal connected to the first galvanometer; and a second motor having a rotatable second output terminal connected to the second galvanometer.

[0010] Furthermore, the laser emitter includes a diffractive optical element disposed between the laser emitter and the focuser.

[0011] Furthermore, the laser emitter also includes a connecting bracket, which is disposed between the laser emitter and the focuser, and the diffractive optical element is detachably connected to the connecting bracket.

[0012] Furthermore, the laser emitter also includes a beam expander, which is disposed between the connecting bracket and the focuser.

[0013] Furthermore, it also includes: a mounting bracket, which is movably connected to the cigarette rolling machine, and the mounting bracket is provided with the laser emitter, the laser controller and the focuser, and the mounting bracket can be selectively moved toward or away from the drum.

[0014] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0016] Figure 1 A schematic diagram showing the galvanometer assembly in the laser drilling device of this utility model;

[0017] Figure 2 for Figure 1 A magnified view of A in the center circle;

[0018] Figure 3A schematic diagram showing the laser drilling device of this invention with diffractive optical elements.

[0019] The following labels are shown in the attached diagram:

[0020] 10. Laser emitter;

[0021] 21. Housing; 22. First galvanometer; 23. Second galvanometer; 24. First motor; 25. Second motor;

[0022] 31. Diffractive optical element; 32. Connecting bracket; 33. Beam expander;

[0023] 40. Focusing device; 50. Mounting bracket; 60. Drum wheel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0025] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other instances, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the present invention.

[0026] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0028] Example 1:

[0029] like Figures 1-3 As shown, this utility model provides a laser drilling device for cigarette making machines, including: a laser emitter 10, a laser controller, and a focuser 40. The laser controller has a receiving end and an emitting end. The receiving end is adapted to receive the laser emitted by the laser emitter 10. The laser emitter 10 is adapted to disperse the laser into multiple beams and / or change the angle of the laser. The dispersed multiple laser beams and / or the laser with changed angles exit from the emitting end. The focuser 40 is adapted to receive and focus the laser emitted from the emitting end. The focal point of the focuser 40 is located on the outer peripheral wall of the cigarette.

[0030] In some embodiments, the cigarette rolling machine includes at least one drum 60, the outer peripheral wall of which is provided with a plurality of receiving slots, the plurality of receiving slots being distributed circumferentially at intervals along the drum 60, and all of the plurality of receiving slots being used to receive cigarettes. The laser drilling device includes three main parts: a laser emitter 10, a laser controller, and a focuser 40. The laser emitter 10 is adapted to generate laser light, the laser controller has a receiving end and a transmitting end, the receiving end receiving the laser light emitted by the laser emitter 10, the laser controller being able to disperse the laser light into multiple beams and / or change the angle of the laser light before emitting it from the transmitting end, and the focuser 40 being adapted to receive and focus the laser light emitted from the transmitting end of the laser controller, the focal point of the focuser 40 being located on the outer peripheral wall of the cigarette.

[0031] Understandably, the laser emitter 10 generates a laser, and the receiving end of the laser controller receives the laser generated by the laser emitter 10. The laser controller disperses the laser into multiple beams or changes the angle of the laser through internal optical elements (such as a galvanometer or diffractive optical element 31). (Note: The laser controller can be controlled by a computer to achieve precise control of the laser path.) The focuser 40 receives the laser emitted from the emitting end of the laser controller and focuses the laser to a very small focal point through a focusing lens. This focal point is located on the outer peripheral wall of the cigarette. In this way, the laser can precisely drill holes at a specific location on the cigarette (on the outer peripheral wall of the cigarette filter).

[0032] It is worth mentioning that the drilling depth is determined by the power of the laser emitter 10, and the drilling speed can also be controlled by adjusting the power of the laser emitter 10 for different cigarette surfaces.

[0033] According to the present invention, a laser drilling device for cigarette machines can achieve high-precision drilling on the surface of cigarettes through the precise control of a laser controller, ensuring that the position and shape of each hole meet the design requirements. Moreover, the laser controller can disperse the laser into multiple beams or change the laser angle to achieve simultaneous drilling of multiple holes or drilling holes of different shapes (such as circles, squares, ovals, etc.). At the same time, by adjusting the parameters of the laser controller, the shape and size of the holes can be easily changed to meet the personalized needs of different products. Of course, during the laser drilling process, the laser is precisely controlled and focused, reducing unnecessary heat-affected zones, reducing damage to cigarette materials, and improving production safety.

[0034] Example 2:

[0035] Based on Embodiment 1, the laser emitter 10 in this embodiment includes a housing 21 and a galvanometer assembly. The housing 21 has an installation space, and the laser emitter 10 is disposed in the installation space. The galvanometer assembly is disposed in the installation space and is adapted to receive and reflect the laser emitted by the laser emitter 10.

[0036] Understandably, the laser emitter 10 generates a laser, which enters the mounting space within the housing 21. The galvanometer assembly consists of two galvanometers (commonly referred to as an X-axis galvanometer and a Y-axis galvanometer), which can rotate in different directions. Through computer control, the galvanometer assembly can precisely change the path of the laser, focusing it at any position on the outer periphery of the cigarette. (The galvanometer assembly receives the laser emitted by the laser emitter 10 and guides it to the desired position through the deflection of the mirror.)

[0037] Therefore, by precisely controlling the deflection angle of the reflector, the galvanometer assembly can achieve high-precision control of the laser path, thereby enabling high-precision drilling on the cigarette surface. Furthermore, the galvanometer assembly can quickly change the laser path, achieving rapid drilling at multiple points and improving production efficiency. Of course, by adjusting the deflection angle of the galvanometer, the position and shape of the drilled holes can be easily changed to meet the personalized needs of different products. In addition, the galvanometer assembly can respond to computer control signals in real time, enabling dynamic adjustment, making it suitable for continuous production cigarette machines. Simultaneously, the galvanometer assembly is installed inside the housing 21, resulting in a compact structure, small footprint, and easy integration into existing cigarette machines.

[0038] Example 3:

[0039] Based on Embodiment 2, this embodiment includes a galvanometer assembly comprising a first galvanometer 22 and a second galvanometer 23. The first galvanometer 22 is configured as a receiving end and is adapted to receive and reflect laser light emitted by the laser emitter 10. The first galvanometer 22 can be selectively rotated in a first direction. The second galvanometer 23 is configured as a transmitting end and is adapted to receive and reflect laser light reflected by the first galvanometer 22. The second galvanometer 23 can be selectively rotated in a second direction.

[0040] In some embodiments, the laser emitted by the laser emitter 10 is first received by a first galvanometer 22 (Y-axis galvanometer). The first galvanometer 22 changes the path of the laser by rotating in a first direction, so that the laser is directed in the desired direction. The laser reflected by the first galvanometer 22 is received by a second galvanometer 23 (X-axis galvanometer). The second galvanometer 23 further changes the path of the laser by rotating in a second direction, and finally guides the laser to a designated position on the outer peripheral wall of the cigarette.

[0041] It is worth mentioning that the first direction usually refers to the Y-axis direction. The rotation of the first galvanometer 22 can control the deflection of the laser in the vertical direction. The second direction usually refers to the X-axis direction. The rotation of the second galvanometer 23 can control the deflection of the laser in the horizontal direction. Thus, through the coordinated work of the first galvanometer 22 and the second galvanometer 23, the laser can be focused at any position on the two-dimensional plane (the outer wall of the cigarette).

[0042] Therefore, by precisely rotating the first galvanometer 22 and the second galvanometer 23, high-precision control of the laser path can be achieved, ensuring that the position and shape of each hole meet the design requirements. Moreover, the galvanometer assembly can quickly change the laser path, enabling rapid drilling at multiple points and improving production efficiency. Of course, the galvanometer assembly has a fast response speed and can complete complex drilling tasks in a short time, further improving overall production efficiency. At the same time, by adjusting the deflection angle of the first galvanometer 22 and the second galvanometer 23, the position and shape of the hole can be easily changed to meet the personalized needs of different products.

[0043] According to some embodiments of the present invention, the galvanometer assembly further includes: a first motor 24 and a second motor 25. The first motor 24 has a rotatable first output end, which is connected to the first galvanometer 22. The second motor 25 has a rotatable second output end, which is connected to the second galvanometer 23.

[0044] In some embodiments, the first motor 24 drives the first galvanometer 22 to rotate in the first direction (Y-axis direction) by rotating its first output terminal, and the second motor 25 drives the second galvanometer 23 to rotate in the second direction (X-axis direction) by rotating its second output terminal. It is worth noting that the rotation angle and speed of the first motor 24 and the second motor 25 are precisely controlled by a computer.

[0045] It is worth noting that the first motor 24 and the second motor 25 are equipped with encoders or other position sensors, which can detect the current position of the first galvanometer 22 and the second galvanometer 23 in real time and feed this information back to the computer. Based on the feedback information, the computer adjusts the rotation angle and speed of the first motor 24 and the second motor 25 to ensure the precise position and movement trajectory of the first galvanometer 22 and the second galvanometer 23.

[0046] Thus, through the precise driving of the first motor 24 and the second motor 25, high-precision control of the positions of the first galvanometer 22 and the second galvanometer 23 is achieved, ensuring precise focusing of the laser on the outer peripheral wall of the cigarette. This not only improves the accuracy and efficiency of drilling but also enhances the flexibility and reliability of the laser drilling device, making it suitable for modern cigarette production processes.

[0047] Example 4:

[0048] Based on Embodiment 1, the laser emitter 10 in this embodiment includes a diffractive optical element 31, which is disposed between the laser emitter 10 and the focuser 40.

[0049] In some embodiments, the laser emitter 10 generates laser light, and the diffractive optical element 31 (DOE) is an optical element based on diffraction technology. The diffractive optical element 31 (DOE) can directly convert the incident laser light into the desired shape or pattern. The diffractive beam splitter in the diffractive optical element 31 (DOE) can split the laser light into multiple beams. Each beam retains the characteristics of the original beam (except for power and propagation angle). After passing through the DOE, the laser light is dispersed into multiple sub-beams. Each sub-beam propagates along a predetermined path and angle to form the desired spot shape. These spots can be polygonal, circular, or other complex shapes, suitable for drilling array holes. The focuser 40 is adapted to receive the multiple laser beams dispersed from the DOE and focuses these beams to a very small focal point through a focusing lens. Multiple focal points are located on the outer peripheral wall of the cigarette.

[0050] Therefore, DOE can convert lasers into various shapes to achieve drilling of different shapes, such as circles, squares, ellipses, etc. Moreover, DOE can split lasers into multiple beams to achieve simultaneous drilling of multiple points, thereby improving production efficiency.

[0051] According to some embodiments of the present invention, the laser emitter 10 further includes a connecting bracket 32, which is disposed between the laser emitter 10 and the focuser 40, and the diffractive optical element 31 is detachably connected to the connecting bracket 32.

[0052] In some embodiments, the connecting bracket 32 ​​is used to fix and support the diffractive optical element 31, ensuring the correct position of the diffractive optical element 31 in the laser path. The diffractive optical element 31 can be easily removed from the connecting bracket 32 ​​for easy replacement and maintenance. Moreover, by replacing different diffractive optical elements 31, the shape and arrangement of the holes can be easily changed to meet the personalized needs of different products.

[0053] Thus, by using the detachable design of the connecting bracket 32 ​​and the diffractive optical element 31, the diffractive optical element 31 can be quickly replaced and maintained, improving the flexibility and maintenance convenience of the laser drilling device. This not only improves the drilling accuracy and efficiency but also enhances the adaptability and reliability of the laser drilling device.

[0054] According to some embodiments of the present invention, the laser emitter 10 further includes a beam expander 33, which is disposed between the connecting bracket 32 ​​and the focuser 40.

[0055] In some embodiments, the beam expander 33 is used to increase the diameter of the laser and reduce the divergence angle of the laser, thereby improving the quality and focusing performance of the laser. That is, after the laser passes through the beam expander 33, the diameter increases and the divergence angle decreases, making the laser more stable during transmission and reducing energy loss.

[0056] As a result, the beam expander 33 reduces the divergence angle of the laser, making the laser more stable when passing through the DOE and the focuser 40, improving the focusing quality, ensuring the accuracy and consistency of each hole, and also improving the energy utilization rate of the laser, reducing energy loss, and improving production efficiency.

[0057] According to some embodiments of the present invention, the laser drilling device further includes: a mounting bracket 50, which is movably connected to the cigarette machine. The mounting bracket 50 is provided with a laser emitter 10, a laser controller, and a focuser 40. The mounting bracket 50 can be selectively moved toward or away from the drum 60.

[0058] In some embodiments, the mounting bracket 50 is used to fix and support the laser emitter 10, the laser controller, and the focuser 40, ensuring that the laser emitter 10, the laser controller, and the focuser 40 are working in the correct position. The mounting bracket 50 is movably connected to the cigarette machine and can be moved toward or away from the drum 60 by mechanical or electric means, thereby adjusting the focal position of the laser.

[0059] Understandably, by moving the mounting bracket 50, the focal point of the laser can be precisely adjusted to ensure the accuracy and consistency of each hole. Moreover, the moving function of the mounting bracket 50 allows the laser drilling device to adapt to cigarettes in different positions, ensuring drilling effects at different locations. Of course, the moving function of the mounting bracket 50 also allows the laser drilling device to be flexibly adjusted to adapt to drilling needs in different positions, improving the flexibility of the laser drilling device. At the same time, by quickly adjusting the position of the mounting bracket 50 mechanically or electrically, it is possible to quickly respond to changes in production needs and improve production efficiency.

[0060] It is worth mentioning that the movable function of the mounting bracket 50 reduces downtime caused by position adjustments, improves production efficiency, and allows the laser drilling device to adapt to different models of cigarette machines, enhancing its versatility. Of course, the mounting bracket 50 integrates the laser emitter 10, laser controller, and focuser 40 into a compact structure that occupies little space, making it easy to integrate into existing cigarette machines. At the same time, the design of the mounting bracket 50 makes the installation and maintenance of the entire laser drilling device more convenient, reducing the complexity of installation and maintenance.

[0061] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A laser drilling device for a cigarette rolling machine, the cigarette rolling machine including a drum (60), the outer peripheral wall of the drum (60) being provided with a receiving groove suitable for receiving cigarettes, characterized in that, The laser drilling device includes: Laser emitter (10); A laser controller having a receiver and a transmitter, the receiver being adapted to receive laser light emitted by the laser transmitter (10), the laser transmitter (10) being adapted to disperse the laser light into multiple beams and / or change the angle of the laser light, the dispersed multiple beams of laser light and / or the laser light with changed angles exiting from the transmitter; A focuser (40) adapted to receive and focus laser light emitted from the emitting end, the focus of the focuser (40) being located on the outer peripheral wall of the cigarette.

2. The laser drilling device for a cigarette rolling machine according to claim 1, characterized in that, The laser emitter (10) includes: A housing (21) is provided inside the housing (21), and the laser emitter (10) is provided inside the installation space; A galvanometer assembly disposed within the mounting space, the galvanometer assembly being adapted to receive and reflect laser light emitted by the laser emitter (10).

3. The laser drilling device for a cigarette rolling machine according to claim 2, characterized in that, The galvanometer assembly includes: A first galvanometer (22) is configured as the receiving end, the first galvanometer (22) is adapted to receive and reflect the laser emitted by the laser emitter (10), and the first galvanometer (22) is selectively rotatable in a first direction; The second galvanometer (23) is configured as the transmitting end and is adapted to receive and reflect the laser light reflected by the first galvanometer (22). The second galvanometer (23) is selectively rotatable in a second direction.

4. The laser drilling device for a cigarette rolling machine according to claim 3, characterized in that, The galvanometer assembly also includes: A first motor (24) has a rotatable first output end, which is connected to the first galvanometer (22). The second motor (25) has a rotatable second output terminal, which is connected to the second galvanometer (23).

5. The laser drilling device for a cigarette rolling machine according to claim 1, characterized in that, The laser emitter (10) includes: A diffractive optical element (31) is disposed between the laser emitter (10) and the focuser (40).

6. The laser drilling device for a cigarette rolling machine according to claim 5, characterized in that, The laser emitter (10) also includes: A connecting bracket (32) is disposed between the laser emitter (10) and the focuser (40), and the diffractive optical element (31) is detachably connected to the connecting bracket (32).

7. The laser drilling device for a cigarette rolling machine according to claim 6, characterized in that, The laser emitter (10) also includes: A beam expander (33) is disposed between the connecting bracket (32) and the focusing device (40).

8. The laser drilling device for a cigarette rolling machine according to claim 1, characterized in that, Also includes: Mounting bracket (50) is movably connected to the cigarette machine. The mounting bracket (50) is provided with the laser emitter (10), the laser controller and the focuser (40). The mounting bracket (50) can be selectively moved toward or away from the drum (60).

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