Laser drilling device for tipping paper for cigarettes

Abstract

The invention belongs to the technical field of laser processing, and particularly relates to a cigarette tipping paper laser drilling device which comprises a mounting plate, and an arc-shaped first sliding frame and an arc-shaped second sliding frame are arranged on the mounting plate; a plurality of laser drilling assemblies are arranged on the first sliding frame in a sliding mode, a plurality of carrier roller assemblies are arranged on the second sliding frame in a sliding mode, the laser drilling assemblies and the carrier roller assemblies are sequentially arranged in a staggered mode, and the adjacent laser drilling assemblies and carrier rollers are sequentially hinged and linked through connecting rods. The laser drilling device further comprises a driving mechanism, and the driving mechanism is used for driving the first sliding frame and the second sliding frame to be close to or away from each other, so that the positions of the multiple laser drilling assemblies on the second sliding frame and the positions of the multiple carrier roller assemblies on the first sliding frame are synchronously adjusted. The positions of the carrier roller assemblies and the laser drilling assemblies are synchronously adjusted through the linkage type adjusting mechanism, so that the mounting and debugging steps are simplified, the mounting precision of a laser head is greatly improved, and the drilling quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of laser processing, and in particular relates to a laser punching device for cigarette tipping paper. Background Art

[0002] Laser drilling is a process that uses high-energy laser beams to create holes. It is widely used in the processing of plastics, paper and other materials. Laser drilling mainly uses the high power density and high spatial coherence of laser radiation to focus and heat the paper, so that the paper reaches the vaporization temperature locally and vaporizes into holes. The use of laser drilling for cigarette tipping paper is becoming more and more common in the tobacco industry.

[0003] When choosing the laser head arrangement for cigarette tipping paper laser drilling equipment, the best solution is usually determined based on the specific requirements of the product (such as hole shape, arrangement complexity, production efficiency, etc.). The horizontal arrangement of several laser heads is suitable for standardized production to ensure fast and consistent hole formation; while the arrangement of several laser heads in a certain arc is more suitable for designing products with varied and complex shapes to meet the market's demand for cigarette tipping paper in terms of functionality and aesthetics.

[0004] When the laser head is arranged in an arc shape, the position accuracy of the laser head is very high, and it is necessary to ensure that the laser head is facing the tipping paper on the roller. Once the laser head of the laser drilling device is installed, its position cannot be changed. When there is an installation error in the parts, it is easy to cause the position accuracy of the laser head to fail to meet the requirements, thereby affecting the quality of the drilling; especially in the installation and debugging stage, the distance between the laser head and the tipping paper will be adjusted. When facing multiple laser heads arranged in an arc shape, it is difficult to ensure that the position accuracy of multiple laser heads meets the requirements, and the operator's experience is required to be high. In addition, the laser will generate dust when drilling and waste will fall after the tipping paper is punched. If these dust and waste are not cleaned in time, they will accumulate on the laser head and the drilling table. Excessive accumulation for a long time will cause the roller to roll poorly, thereby affecting the drilling quality of the laser drilling machine; and the dust particles accumulated on the drilling table, the tipping paper will produce sliding friction with the platform during the transmission process, which will inevitably scratch the surface pattern of the tipping paper, thereby affecting the quality of the tipping paper surface, and eventually become defective. Summary of the invention

[0005] In view of the technical problems existing in the background technology, the present invention provides a laser punching device for cigarette tipping paper.

[0006] To achieve the above purpose, the technical solution provided by the present invention is:

[0007] A laser punching device for cigarette tipping paper comprises a mounting plate, a laser punching assembly and a roller assembly, wherein the mounting plate is provided with an arc-shaped first slide and a second slide at a fixed distance from bottom to top; a plurality of laser punching assemblies are slidably provided on the first slide, and a plurality of roller assemblies are slidably provided on the second slide, the laser punching assemblies and the roller assemblies are staggered in sequence, and adjacent laser punching assemblies and rollers are hingedly linked in sequence through connecting rods, and the laser punching assembly is located in the middle position of two adjacent roller assemblies; and further comprises a driving mechanism, wherein the driving mechanism is used to drive the first slide and the second slide to approach or move away from each other, thereby synchronously adjusting the positions of the plurality of laser punching assemblies on the second slide, and synchronously adjusting the positions of the plurality of roller assemblies on the first slide.

[0008] Optionally, roller assemblies that are not linked to the laser punching assembly and are used to tension the tipping paper are respectively provided at both ends of the first slide.

[0009] Optionally, the first slide includes an arc-shaped first guide rail, two first guide rails are arranged at a fixed distance apart, and the ends of the two first guide rails are connected by a first cross bar; the second slide includes an arc-shaped second guide rail, two second guide rails are arranged at a fixed distance apart, and the ends of the two second guide rails are connected by a second cross bar.

[0010] Optionally, guide blocks are symmetrically arranged on the first cross bar, and guide grooves are vertically opened on the inner walls of the guide blocks. Guide wheels are respectively arranged at both ends of the second guide rail, and the guide wheels are slidably arranged in the guide grooves. A cylinder seat is arranged on the upper end of the guide block, and an adjusting cylinder is arranged on the cylinder seat, and the piston rod of the adjusting cylinder extends downward and is connected to the second cross bar.

[0011] Optionally, the roller assembly includes a core shaft, an inner cylinder and an outer cylinder, the circumference of the outer cylinder is evenly distributed with a plurality of through holes, the inner cylinder is rotatably arranged on the outer wall of the core shaft through a bearing, and an annular first cavity is provided between the inner cylinder and the core shaft; the outer cylinder is arranged on the outer side of the inner cylinder, one end of the outer cylinder is detachably connected to the inner cylinder, the other end of the outer cylinder is sleeved on the core shaft, and an annular second cavity is provided between the outer cylinder and the inner cylinder; a first flow channel and a second flow channel are respectively provided on the core shaft; one end of the first flow channel is connected to the air supply device, and the other end is communicated with the first cavity, and one end of the second flow channel is connected to the air extraction device, and the other end is communicated with the second cavity.

[0012] Optionally, the roller assembly also includes a first slider, a first arc-shaped slide groove is arranged inside the first slider, and the first slider is slidably arranged on the first guide rail through the first slide groove; a first connecting tube is arranged at one end of the first slider, and the two ends of the core shaft are respectively arranged on the inner wall of the first connecting tube.

[0013] Optionally, a first threaded hole is provided on the first connecting tube, a medium joint is provided in the first threaded hole, the medium joint is a hollow structure, and one end of the medium joint is communicated with the first flow channel.

[0014] Optionally, the inner cylinder includes a threaded cylinder body and a conical cylinder body which are integrally connected, the threaded cylinder body is threadedly connected to the inner wall of the outer cylinder, a plurality of L-shaped supports are evenly distributed on the circumference of the end of the conical cylinder body, a recovery port is provided between two adjacent supports, and the supports are arranged close to the inner wall of the outer cylinder.

[0015] Optionally, a first mounting groove is provided at the end of the conical cylinder, a first sealing ring is provided in the first mounting groove, and the first sealing ring is arranged close to the outer wall of the core shaft; a second mounting groove is provided at one end of the outer cylinder, a second sealing ring is provided in the second mounting groove, and the second sealing ring is arranged close to the outer wall of the core shaft, and the support is located between the first sealing ring and the second sealing ring.

[0016] Optionally, the laser drilling assembly includes a laser base and a laser head arranged at the bottom of the laser base, the two ends of the laser base are respectively detachably connected to the second slider, an arc-shaped second slide groove is arranged inside the second slider, and the second slider is slidably arranged on the second guide rail through the second slide groove.

[0017] The present invention has the following advantages and beneficial effects:

[0018] In the present invention, an arc-shaped first slide and a second slide are provided, a plurality of laser punching assemblies are slidably provided on the first slide, a plurality of roller assemblies are slidably provided on the second slide, and adjacent laser punching assemblies and rollers are hingedly linked in sequence through connecting rods. The first slide and the second slide are driven to approach or move away from each other by a driving mechanism, so as to synchronously adjust the positions of the plurality of laser punching assemblies on the second slide, and synchronously adjust the positions of the plurality of roller assemblies on the first slide. In this structure, regardless of the position, the distance between any two adjacent laser punching assemblies is the same, the distance between any two adjacent roller assemblies is the same, and any one laser punching assembly is located between the two roller assemblies. This linkage adjustment mechanism can synchronously adjust the positions of the plurality of roller assemblies and the laser punching assemblies, thereby simplifying the installation steps, reducing the difficulty of installation, and greatly improving the installation accuracy of the laser head. At the same time, the arc-shaped arrangement of the plurality of roller assemblies can tighten the paper to ensure the quality of punching.

[0019] The laser drilling device needs to be debugged to ensure the accuracy and effect of laser processing. During the installation and debugging stage, the distance between multiple laser heads and the tipping paper can be adjusted synchronously to ensure that the laser is focused at the best point and the cutting and drilling effect is ensured, while reducing the impact on control, preventing material damage, ensuring the quality of drilling and improving the drilling efficiency. Debugging is a process of frequent adjustments and multiple tests. The synchronous linkage mechanism can be adjusted synchronously to reduce the difficulty of debugging and improve the efficiency of debugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the structural diagrams of the laser drilling device in the present invention;

[0021] Figure 2 for Figure 1 Left view of

[0022] Figure 3 This is the second structural diagram of the laser drilling device in the present invention;

[0023] Figure 4 for Figure 1 Front view of

[0024] Figure 5 for Figure 2 The cross-sectional view along the AA direction;

[0025] Figure 6 for Figure 5 Schematic diagram of the middle roller assembly wrapping the tipping paper to perform hole punching;

[0026] Figure 7 for Figure 1 A partial enlarged view of point a in the middle;

[0027] Figure 8 for Figure 3 A partial enlarged view of point b in the middle;

[0028] Fig. 9 It is a structural diagram of the laser drilling component in the present invention;

[0029] Fig.10 is a cross-sectional view of the laser drilling assembly of the present invention;

[0030] Fig.11 It is a structural diagram of the roller assembly in the present invention;

[0031] Fig.12 for Fig.11 Front view of

[0032] Fig.13 is a cross-sectional view of the roller assembly of the present invention;

[0033] Fig.14It is a structural diagram of the regulating cylinder and the cylinder seat in the present invention;

[0034] Fig.15 is a structural diagram of the second slide in the present invention;

[0035] Fig.16 is a structural diagram of the first sliding frame in the present invention;

[0036] Fig.17 is a cross-sectional view of the outer cylinder in the present invention;

[0037] Fig.18 It is a structural diagram of the inner cylinder in the present invention;

[0038] Fig.19 It is a cross-sectional view of the inner cylinder in the present invention.

[0039] Figure markings: 1-mounting plate, 2-guide block, 21-first connecting hole, 22-guide groove, 23-V-shaped top wall, 3-first guide rail, 31-first cross bar, 4-second guide rail, 41-second cross bar, 42-guide wheel, 43-second connecting hole, 5-first slider, 51-first slide groove, 52-first hinge shaft, 521-connecting rod, 53-first connecting cylinder, 54-second threaded hole, 55-first screw, 56-first threaded hole, 6-second slider, 61-second slide groove, 62-second hinge shaft, 63-fourth threaded hole, 64-second screw, 65-second connecting cylinder, 66-fifth threaded hole, 7-laser seat, 71-laser head, 72-sixth threaded hole , 73-seventh threaded hole, 74-mounting shaft, 8-roller assembly, 8a-first cavity, 8b-second cavity, 81-outer cylinder, 811-through hole, 812-third threaded hole, 813-first center hole, 814-second mounting groove, 82-inner cylinder, 821-threaded cylinder, 822-conical cylinder, 823-support, 824-recovery port, 825-second center hole, 826-first mounting groove, 83-bearing, 84-core shaft, 841-first flow channel, 842-second flow channel, 85-medium joint, 851-inner hole, 86-second sealing ring, 87-first sealing ring, 9-adjusting cylinder, 91-piston rod, 92-cylinder seat, 93-V-groove. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example 1

[0043] like Figures 1 to 8 As shown, a laser punching device for cigarette tipping paper includes a mounting plate 1, a laser punching assembly and a roller assembly 8. The mounting plate 1 is provided with an arc-shaped first slide and a second slide at a fixed distance from bottom to top, the arcs of the first slide and the second slide correspond to each other, and the first slide is arranged directly below the second slide. A plurality of laser punching assemblies are slidably arranged on the first slide, and a plurality of roller assemblies 8 are slidably arranged on the second slide. The laser punching assemblies and the roller assemblies 8 are staggered in sequence, and the adjacent laser punching assemblies and the rollers are hingedly linked in sequence through connecting rods 521. The laser punching assembly is located in the middle of two adjacent roller assemblies 8 (such as Figure 6 The invention also includes a driving mechanism, which is used to drive the first slide and the second slide to move closer to or farther from each other, thereby synchronously adjusting the positions of the plurality of laser drilling assemblies on the second slide and synchronously adjusting the positions of the plurality of roller assemblies 8 on the first slide.

[0044] like Figure 6 As shown, the L1 line shown in the figure is the center line of the laser emission, each L1 is located between two adjacent roller assemblies 8, and several L1 lines are perpendicular to the tipping paper, that is, the laser punching assembly (laser head 71) punches perpendicular to the tipping paper.

[0045] Reference Figure 5 As a preferred embodiment of the present invention, five roller assemblies 8 are provided in linkage with the laser punching assembly, and four laser punching assemblies are provided, and any laser punching assembly is located between the two lower roller assemblies 8. Roller assembly 8-connecting rod 521-laser punching assembly-connecting rod 521-roller assembly 8 are connected in sequence in this way, so that the four mechanism punching assemblies and the five roller assemblies 8 can be linked by the connecting rod 521. When one of the laser punching assemblies is fixed, or one of the roller assemblies 8 is fixed, the first slide and the second slide are controlled to move relative to each other, and the remaining mechanism punching assemblies and roller assemblies 8 can be driven to slide and adjust their positions.

[0046] Reference Figure 4 and Figure 6When the number of roller assemblies 8 linked to the laser drilling assembly is an odd number, the number of roller assemblies 8 linked to the laser drilling assembly in the present invention is five. In this case, the middle roller assembly 8 can be fixed in the middle of the first carriage, that is, Figure 4 In the figure, point B is the middle position of the arc of the first slide, and the roller assembly 8 at this position is fixed. In this way, after the roller assembly 8 at the middle position is fixed, when the relative position of the first slide and the second slide is adjusted, the remaining roller assemblies 8 can be controlled to slide symmetrically on both sides of the first slide, and the laser drilling assembly can be controlled to slide symmetrically on both sides of the second slide, so as to ensure the coordination and smoothness of the adjustment.

[0047] In this structure, no matter what position, the vertical interval between any laser punching assembly and the tipping paper is the same, the distance between any two adjacent laser punching assemblies is the same, the distance between any two adjacent roller assemblies 8 is the same, and any laser punching assembly is located between two roller assemblies 8. This linkage adjustment mechanism can synchronously adjust the positions of several roller assemblies 8 and laser punching assemblies, thereby simplifying the installation steps, reducing the installation difficulty, and greatly improving the installation accuracy of the laser head 71. At the same time, the arc arrangement of several roller assemblies 8 can tighten the tipping paper and ensure the punching quality.

[0048] The laser drilling device needs to be debugged to ensure the accuracy and effect of laser processing. In the present invention, during the installation and debugging stage, the distance between multiple laser heads 71 ​​and the tipping paper can be adjusted synchronously and at one time to ensure that the laser is focused at the optimal point and the cutting and drilling effect is ensured, while reducing the impact on control, preventing material damage, ensuring the quality of drilling and improving the drilling efficiency. Debugging is a process of frequent adjustment and multiple tests. The synchronous linkage mechanism can be adjusted synchronously to reduce the difficulty of debugging and improve the efficiency of debugging.

[0049] like Figures 1 to 8 As shown, further, roller assemblies 8 for tensioning the tipping paper are respectively provided at both ends of the first slide, which are not linked to the laser punching assembly. That is, the first slide also has idle roller assemblies 8 at both ends, and the roller assemblies 8 are not linked to the laser punching assembly through the connecting rod 521. Figure 4 and Figure 6 , point C is the position of both ends of the first slide, and a roller assembly 8 is also set there, with a total of seven roller assemblies 8. When the tipping paper is wound, the tipping paper is wound on the lower surface of the two roller assemblies 8 at both ends, and at the same time, the tipping paper is wound and tightened on the upper surface of the five roller assemblies 8 in the middle. This method uses the arc-shaped roller assemblies 8 (the five roller assemblies 8 in the middle that are linked to the laser punching assembly) to tighten the tipping paper, and uses the sliding of the roller assemblies 8 at both ends on the first slide to adjust the tension of the tipping paper.

[0050] like Figures 1 to 8 , Figure 14 to Figure 16 As shown, the first slide is configured as a rectangular structure, the first slide comprises an arcuate first guide rail 3, two first guide rails 3 are arranged at a fixed distance, and the ends of the two first guide rails 3 are connected by a first cross bar 31. The second slide is configured as a rectangular structure, the second slide comprises an arcuate second guide rail 4, two second guide rails 4 are arranged at a fixed distance, and the ends of the two second guide rails 4 are connected by a second cross bar 41.

[0051] like Figures 1 to 8 , Figure 14 to Figure 16 As shown, further, two guide blocks 2 are symmetrically arranged on each first cross bar 31, and the guide blocks 2 are arranged in a triangular shape. A guide groove 22 is vertically opened on the inner wall of the guide block 2, and a first connecting hole 21 is opened on the guide block 2. Through the first connecting hole 21, the guide block 2 is detachably mounted on the mounting plate 1. Guide wheels 42 are respectively arranged at both ends of the second guide rail 4, and the guide wheels 42 are slidably arranged in the guide groove 22 to realize the vertical lifting and sliding of the first slide relative to the second slide. A cylinder seat 92 is arranged on the upper end of the guide block 2, and an adjusting cylinder 9 is arranged on the cylinder seat 92. The piston rod 91 of the adjusting cylinder 9 extends downward and is connected to the second cross bar 41. By adjusting the extension and contraction of the adjusting cylinder 9, the lifting and lowering movement of the first slide is controlled, thereby driving the roller assembly 8 and the laser drilling assembly to slide and adjust the position.

[0052] like Figures 1 to 8 , Figure 14 to Figure 16 As shown, a V-shaped groove 93 is provided on the bottom side of the cylinder seat 92, and a V-shaped top wall 23 is provided on the upper end of the guide block 2. The cylinder seat 92 is arranged on the V-shaped top wall 23 through the V-shaped groove 93. The cylinder seat 92 and the guide block 2 are detachably connected by bolts or the like.

[0053] like Figures 1 to 8 , Figure 14 to Figure 16 As shown, a second connecting hole 43 is provided on the second cross bar 41 , and a piston rod 91 of the regulating cylinder 9 extends downward and is threadedly disposed in the second connecting hole 43 .

[0054] Example 2

[0055] In order to ensure the smooth operation of the roller assembly 8 and improve the drilling quality of the laser drilling machine, further optimization design is made.

[0056] like Figures 1 to 8 , Figure 11 to Figure 13 and Figure 17 to Figure 19As shown, the roller assembly 8 includes a core shaft 84, an inner cylinder 82 and an outer cylinder 81. The outer cylinder 81 is evenly distributed with a plurality of through holes 811 on its circumference. A third threaded hole 812 is provided on the inner wall of one end of the outer cylinder 81. A second mounting groove 814 and a first center hole 813 are provided on the inner wall of the other end of the outer cylinder 81 in sequence. The inner diameters of the first center hole 813, the second mounting groove 814 and the third threaded hole 812 increase in sequence. The inner diameter of the first center hole 813 is slightly larger than the outer diameter of the core shaft 84. The inner wall of the inner cylinder 82 is rotatably arranged on the outer wall of the core shaft 84 through a bearing 83. The bearing 83 is arranged on the inner walls of both ends of the inner cylinder 82. An annular first cavity 8a is provided between the inner cylinder 82 and the core shaft 84. The outer cylinder 81 is arranged outside the inner cylinder 82, one end of the outer cylinder 81 is detachably connected to the inner cylinder 82, and the other end of the outer cylinder 81 is sleeved on the core shaft 84 through the first center hole 813, and an annular second cavity 8b is provided between the outer cylinder 81 and the inner cylinder 82.

[0057] like Fig.13 As shown, the core shaft 84 is provided with a first flow channel 841 and a second flow channel 842 respectively; one end of the first flow channel 841 is connected to the air supply device, and the other end is connected to the first cavity 8a. The air supply device is used to supply air into the first cavity 8a, so as to ensure that there is always a certain pressure of gas in the first cavity 8a, which is filled in the inner wall of the bearing 83, so as to prevent external dust from penetrating, affecting the bearing 83, wearing the bearing 83, and causing the operation of the roller assembly 8 to be blocked. One end of the second flow channel 842 is connected to the air extraction device, and the other end is connected to the second cavity 8b. The air extraction device generates negative pressure inside the second cavity 8b, and the outside is sucked through the through hole 811 on the outer cylinder 81, so as to timely suck and clean the dust and waste generated during the drilling, so as to prevent them from accumulating on the laser head 71 and the drilling table, causing the roller assembly 8 to roll poorly, thereby affecting the drilling quality of the laser drilling machine.

[0058] Reference Fig.13 In the present invention, through the double-cylinder roller structure of the inner cylinder 82 and the outer cylinder 81, when the outer cylinder 81 is used to collect dust, the dust collected in the outer cylinder 81 is separated by the inner cylinder 82, so that the bearing 83 inside the inner cylinder 82 will not be affected during the dust collection process. This double-layer cylinder structure, through the combination of exhaust and air supply, can have the dual functions of dust collection and bearing 83 protection, greatly improve the operating stability of the roller assembly 8, and ensure the quality of drilling.

[0059] like Figures 1 to 8 , Figure 11 to Figure 13 and Figure 17 to Figure 19As shown, further, the inner cylinder 82 includes an integrally connected threaded cylinder 821 and a tapered cylinder 822. The tapered cylinder 822 structure can drain and recycle the dust in the second cavity 8b, prevent dust from accumulating in the second cavity 8b, and increase the recycling efficiency; the threaded cylinder 821 is threadedly connected to the third threaded hole 812 on the inner wall of the outer cylinder 81, and a plurality of L-shaped supports 823 are evenly distributed on the circumference of the end of the tapered cylinder 822, and a recovery port 824 is provided between two adjacent supports 823, and the supports 823 are arranged close to the inner wall of the outer cylinder 81. The support 823 strengthens the stability of the connection between the inner cylinder 82 and the outer cylinder 81, and at the same time, the dust collected in the second cavity 8b can be sucked and recycled to the second flow channel 842 through the recovery port 824.

[0060] Figure 11 to Figure 13 and Figure 17 to Figure 19 As shown, further, the inner wall of the end of the conical cylinder 822 is provided with a second center hole 825, the inner diameter of the second center hole 825 is slightly larger than the outer diameter of the core shaft 84, and the end of the conical cylinder 822 is provided with a first mounting groove 826, and a first sealing ring 87 is provided in the first mounting groove 826. The first sealing ring 87 is arranged close to the outer wall of the core shaft 84 to increase the sealing performance of the bearing 83 and prevent the dust from being recovered in the second cavity 8b from infiltrating into the position of the bearing 83. A second mounting groove 814 is provided at one end of the outer cylinder 81, and a second sealing ring 86 is provided in the second mounting groove 814. The second sealing ring 86 is arranged close to the outer wall of the core shaft 84 to prevent external dust from infiltrating, or to prevent the dust collected in the second cavity 8b from seeping out. The support 823 is located between the first sealing ring 87 and the second sealing ring 86. This structure can greatly improve the sealing and dustproof performance of the bearing, while improving the dust recovery efficiency and ensuring the drilling quality.

[0061] Example 3

[0062] like Figures 1 to 13 As shown, the roller assembly 8 also includes a first slider 5, and an arc-shaped first slide groove 51 is provided inside the first slider 5. The first slider 5 is slidably arranged on the first guide rail 3 through the first slide groove 51. A first connecting cylinder 53 is provided at one end of the first slider 5, and both ends of the mandrel 84 are respectively arranged on the inner wall of the first connecting cylinder 53. The mandrel 84 and the first connecting cylinder 53 can be plugged or connected by threads. This mechanism facilitates the disassembly and assembly of the roller assembly 8.

[0063] like Figures 1 to 13 As shown, further, a first threaded hole 56 is provided on the first connecting tube 53, and a medium joint 85 is threadedly connected in the first threaded hole 56. The medium joint 85 is a hollow structure, and the medium joint 85 is equivalent to a hollow screw. The medium joint 85 has an inner hole 851, and the inner hole 851 of the medium joint 85 is connected to the first flow channel 841, and the gas is supplied to the first cavity 8a through the medium joint 85.

[0064] like Figures 1 to 13 As shown, further, a first hinge shaft 52 is provided at one end of the first slider 5, and one end of the connecting rod 521 is hinged on the first hinge shaft 52. A second threaded hole 54 communicating with the first slide groove 51 is provided at the bottom end of the first slider 5, and a first screw 55 is provided in the second threaded hole 54. When the position of the first slider 5 is fixed, the first screw 55 can be tightened to further fix the first slider 5 and the roller assembly 8.

[0065] like Figures 1 to 13 As shown, the laser drilling assembly includes a laser base 7 and a laser head 71 arranged at the bottom end of the laser base 7. The two ends of the laser base 7 are detachably connected to the second slider 6 respectively. An arc-shaped second slide groove 61 is arranged inside the second slider 6. The second slider 6 is slidably arranged on the second guide rail 4 through the second slide groove 61.

[0066] like Figures 1 to 13 As shown, further, a second hinge shaft 62 is provided at one end of the second slider 6, and the other end of the connecting rod 521 is hinged on the second hinge shaft 62. A fourth threaded hole 63 communicating with the second slide groove 61 is provided at the upper end of the second slider 6, and a second screw 64 is provided in the fourth threaded hole 63. When the position of the second slider 6 is fixed, the second screw 64 can be tightened to further fix the second slider 6 and the laser drilling assembly.

[0067] like Figures 1 to 13 As shown, further, a second connecting cylinder 65 is provided at one end of the second slider 6, a seventh threaded hole 73 is transversely provided inside the laser seat 7, a mounting shaft 74 is threadedly connected in the seventh threaded hole 73, and both ends of the mounting shaft 74 are respectively provided on the inner wall of the second connecting cylinder 65. The mounting shaft 74 and the second connecting cylinder 65 can be plugged in or connected by threads. A fifth threaded hole 66 is provided on the second connecting cylinder 65, and the mounting shaft 74 and the second connecting cylinder 65 are fixed by screwing a screw into the fifth threaded hole 66. The laser seat 7 is arranged in a Z shape, and a sixth threaded hole 72 is provided at the bottom end of the laser seat 7, and the laser head 71 is connected in the sixth threaded hole 72.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laser punching device for cigarette tipping paper, characterized in that: Includes mounting plate, laser punching assembly and roller assembly, The mounting plate is provided with a first arc-shaped slide and a second arc-shaped slide at a fixed distance from bottom to top; A plurality of laser drilling assemblies are slidably arranged on the first slide, and a plurality of roller assemblies are slidably arranged on the second slide. The laser drilling assemblies and the roller assemblies are staggered in sequence, and the adjacent laser drilling assemblies and the rollers are hinged and linked in sequence through connecting rods. The laser drilling assembly is located in the middle of two adjacent roller assemblies. It also includes a driving mechanism, which is used to drive the first slide and the second slide to move closer to or away from each other, so as to synchronously adjust the positions of several laser drilling assemblies on the second slide and synchronously adjust the positions of several roller assemblies on the first slide.

2. The laser perforating device for cigarette tipping paper according to claim 1, characterized in that: Both ends of the first slide are respectively provided with roller assemblies which are not linked with the laser punching assembly and are used for tensioning the tipping paper.

3. The laser perforating device for cigarette tipping paper according to claim 1, characterized in that: The first slide includes an arc-shaped first guide rail, two first guide rails are arranged at a fixed distance, and the ends of the two first guide rails are connected by a first cross bar; the second slide includes an arc-shaped second guide rail, two second guide rails are arranged at a fixed distance, and the ends of the two second guide rails are connected by a second cross bar.

4. The laser perforating device for cigarette tipping paper according to claim 3, characterized in that: Guide blocks are symmetrically arranged on the first cross bar, and guide grooves are vertically opened on the inner walls of the guide blocks. Guide wheels are respectively arranged at both ends of the second guide rail, and the guide wheels are slidably arranged in the guide grooves. A cylinder seat is arranged on the upper end of the guide block, and an adjusting cylinder is arranged on the cylinder seat. The piston rod of the adjusting cylinder extends downward and is connected to the second cross bar.

5. The laser perforating device for cigarette tipping paper according to claim 1, characterized in that: The roller assembly comprises a core shaft, an inner cylinder and an outer cylinder, the circumference of the outer cylinder is uniformly provided with a plurality of through holes, the inner cylinder is rotatably arranged on the outer wall of the core shaft through a bearing, and an annular first cavity is provided between the inner cylinder and the core shaft; the outer cylinder is arranged on the outer side of the inner cylinder, one end of the outer cylinder is detachably connected to the inner cylinder, the other end of the outer cylinder is sleeved on the core shaft, and an annular second cavity is provided between the outer cylinder and the inner cylinder; The core shaft is provided with a first flow channel and a second flow channel respectively; one end of the first flow channel is connected to the air supply device, and the other end is connected to the first cavity; one end of the second flow channel is connected to the air extraction device, and the other end is connected to the second cavity.

6. The laser perforating device for cigarette tipping paper according to claim 5, characterized in that: The roller assembly also includes a first slider, a first arc-shaped slide groove is arranged inside the first slider, and the first slider is slidably arranged on the first guide rail through the first slide groove; a first connecting tube is arranged at one end of the first slider, and the two ends of the core shaft are respectively arranged on the inner wall of the first connecting tube.

7. The laser perforating device for cigarette tipping paper according to claim 6, characterized in that: The first connecting tube is provided with a first threaded hole, and a medium joint is provided in the first threaded hole. The medium joint is a hollow structure, and one end of the medium joint is communicated with the first flow channel.

8. The laser perforating device for cigarette tipping paper according to claim 6, characterized in that: The inner cylinder includes a threaded cylinder body and a tapered cylinder body which are integrally connected. The threaded cylinder body is threadedly connected to the inner wall of the outer cylinder. A plurality of L-shaped supports are evenly distributed on the circumference of the end of the tapered cylinder body. A recovery port is provided between two adjacent supports. The supports are arranged close to the inner wall of the outer cylinder.

9. The laser perforating device for cigarette tipping paper according to claim 8, characterized in that: A first mounting groove is provided at the end of the conical cylinder, a first sealing ring is provided in the first mounting groove, and the first sealing ring is arranged close to the outer wall of the core shaft; a second mounting groove is provided at one end of the outer cylinder, a second sealing ring is provided in the second mounting groove, and the second sealing ring is arranged close to the outer wall of the core shaft, and the support is located between the first sealing ring and the second sealing ring.

10. The laser perforating device for cigarette tipping paper according to claim 1, characterized in that: The laser drilling assembly includes a laser base and a laser head arranged at the bottom of the laser base. The two ends of the laser base are detachably connected to the second slider, and an arc-shaped second slide groove is arranged inside the second slider. The second slider is slidably arranged on the second guide rail through the second slide groove.

Images