A laser perforating device for tipping paper for cigarettes

Abstract

The present application relates to the field of tipping paper production, in particular to a laser punching device for tipping paper for cigarettes, which solves the problems of inconvenient operation, inconvenience in limiting tipping paper and preventing adhesion; the rack is provided with a laser punching mechanism and a movable bearing plate, a plurality of through holes are arranged on the bearing plate, a rotating plate flush with the top of the bearing plate is rotatably arranged in part of the through holes, a jacking column is arranged in part of the through holes, a first gear is rotatably arranged on the front side of the bearing plate, the first gear is fixedly connected with a limiting pressing strip and a rotating rod, the rotating rod is connected with a top block, a first rack matched with the first gear is arranged on the rack close to the front side, a top plate is arranged on the bottom of the jacking column, a second gear is arranged on the bottom of the rotating plate, and a second rack matched with the second gear is arranged on the rack; the present application can conveniently limit the tipping paper during punching, and the tipping paper can be jacked up to a certain height by the jacking column, so that the tipping paper is conveniently replaced, and the bearing plate can drive the rotating plate to rotate when moving, so that the tipping paper is prevented from adhering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tipping paper production, and particularly relates to a laser punching device for tipping paper for cigarettes. BACKGROUND

[0002] Tipping paper, also known as water-based paper, is used to wrap the outside of a filter tip, and the paper is used to bond the filter rod to the end of a cigarette rod. During the production and processing of tipping paper, punching operations need to be performed on the tipping paper to facilitate the introduction of air into the filter tip during smoking, so that the smoke generated by the tobacco section is diluted, the tar content inhaled by the human body is reduced, and the damage of tar to the human body is reduced. In recent years, water-based paper has developed rapidly in China, and there has been great development and innovation in function and use. The use of water-based paper by cigarette factories is not limited to packaging, and more attention is paid to its decorative nature, and there are higher requirements for the printing aesthetics of water-based paper. Water-based paper has developed from single-color varieties to multi-color products, and the proportion of multi-color products has increased year by year. In terms of variety, the market share of printed tipping paper has exceeded that of coated tipping paper. With the increasing calls for health and environmental protection of cigarettes, as one of the important means to reduce tar content and reduce the harm of smoking, electrostatic and laser punching tipping paper has developed rapidly, and laser punching tipping paper has become an important development direction in the future. In addition, tipping paper is also used as an anti-counterfeiting technology by some cigarette factories for cigarette anti-counterfeiting.

[0003] During the laser punching process, the tipping paper needs to be conveyed to the laser punching mechanism through a certain bearing plate. In order to ensure the accuracy of the punching, it is necessary to ensure that the tipping paper does not deviate during the conveying process, and in order to facilitate the removal of the tipping paper after punching, it is also necessary to avoid the adhesion of the tipping paper to the bearing plate. The Chinese utility model patent with the publication number CN 214733272U discloses a tipping paper punching device, which comprises a support platform, a support plate is arranged at the top end of the support platform, a conveying roller, a guide roller and a recovery roller are arranged on the support plate, and a tipping paper punching assembly is further arranged between the conveying roller and the recovery roller. The tipping paper punching assembly comprises a laser puncher arranged on the support plate and a backing table arranged on the support plate below the laser puncher. Limiting rods are arranged on the left and right ends of the top surface of the backing table, and limiting auxiliary pieces are arranged on the left and right sides of the backing table. A plurality of exhaust holes are uniformly arranged on the top surface of the backing table, the exhaust holes are in communication with a containing groove arranged in the backing table, and a heat dissipation assembly is arranged in the containing groove. The present utility model can solve the problems of tipping paper deviation and adhesion of tipping paper to the backing table during the tipping paper punching process, ensure the punching quality, and improve the work efficiency.

[0004] The limiting device needs to be manually controlled, and needs to be operated multiple times during the punching process, which is relatively troublesome. In addition, the holes punched through the exhaust holes may sometimes have a phenomenon of scorched edges or rough edges, which may affect the production quality. That is, the existing technology has the problems of inconvenient operation, inconvenient tipping paper limiting and anti-adhesion.

[0005] Therefore, the present application provides a laser punching device for tipping paper to solve the above problems. SUMMARY

[0006] In view of the above, in order to overcome the defects of the prior art, the present application provides a laser punching device for tipping paper, which aims to provide a laser punching device for tipping paper that is easy to operate and ensures the punching quality of tipping paper.

[0007] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0008] A laser punching device for tipping paper, comprising a rack, a laser punching mechanism and a movable bearing plate provided on the rack, a plurality of through holes provided on the bearing plate, wherein a rotating plate flush with the top of the bearing plate is arranged in a part of the through holes, and a top column is arranged in another part of the through holes, and in a natural state, the top column is not higher than the top of the bearing plate, a first gear is rotatably arranged on the front side of the bearing plate, the first gear is fixedly connected with a limiting pressing strip and a rotating rod, the rotating rod is connected with a top block, a first rack matching the first gear is arranged on the rack close to the front side, when the first gear moves close to the first rack, the limiting pressing strip, the rotating rod and the top block are driven to rotate, a top plate is arranged at the bottom of the top column, when the top block rotates, the top plate and the top column are driven to move upward, a second gear is arranged at the bottom of the rotating plate, and a second rack matching the second gear is arranged on the rack, when the bearing plate moves, the rotating plate is driven to rotate by the second gear.

[0009] The through holes are arranged in the middle and around the bearing plate, the rotating plate is one and arranged in the through hole in the middle, the top columns are arranged in the through holes around the bearing plate, the top plate is in the shape of a frame and connected with the bottoms of the top columns respectively, the left and right ends of the front side of the bearing plate are provided with connecting blocks, the first gear and the limiting pressing strip are provided with two groups and rotatably connected with the corresponding connecting blocks, and the rotating rod is fixedly arranged between the two first gears.

[0010] Preferably, a limiting spring is arranged between the top plate and the bearing plate, and a limiting torsion spring is arranged between the connecting block and the limiting pressing strip.

[0011] Preferably, the bottom of the rotating plate is provided with a fan blade.

[0012] Preferably, the bottom of the rotating plate is provided with a connecting column, the second gear is sleeved on the connecting column, and the bottom of the connecting column is connected with the fan blade through a reciprocating control mechanism, when the connecting column makes forward and reverse rotation, the fan blade always rotates in one direction.

[0013] Preferably, the reciprocating control mechanism comprises a third gear fixedly connected with the connecting column, the third gear is meshingly connected with a fourth gear, the fourth gear is rotatably and slidably arranged in an arc-shaped sliding groove, and the fourth gear is meshingly connected with a fifth gear or a sixth gear, the sixth gear is fixedly connected with the fan blade, the third gear, the fifth gear and the sixth gear are oppositely rotatably arranged on the bearing plate, and the arc-shaped sliding groove is oppositely fixedly arranged on the bearing plate.

[0014] Preferably, one side of the rack is provided with a rodless cylinder, the rodless cylinder comprises a guide rod and a sliding block, the sliding block is oppositely fixedly connected with the front side of the bearing plate, and the rodless cylinder is electrically connected with a controller, so that the bearing plate moves forward and backward once after each machining, and drives the fan blade to rotate and dissipate heat.

[0015] Preferably, a handle is rotatably arranged on the rotating rod.

[0016] Preferably, the rotating plate and the top column are in a cylindrical shape, the top column is threadedly connected with the bearing plate, and is provided with a ball, and the bottom of the top column is rotatably arranged on the top plate.

[0017] Preferably, the limiting pressing strip is in an F shape.

[0018] The present application has the following beneficial effects:

[0019] 1. In the punching process, the limiting pressing strip limits the tipping paper on the bearing plate, when the bearing plate approaches the first rack and the first gear contacts the first rack, the first gear rotates, drives the limiting pressing strip to move, and the limiting pressing strip moves away from the bearing plate, and no longer limits the tipping paper, so that the tipping paper is limited during punching.

[0020] 2. In the present application, when the first gear rotates, the rotating rod and the top block are sequentially driven to rotate, the top plate and the top column are sequentially driven to rise through the top block, that is, when the limiting pressing strip no longer limits the tipping paper, the tipping paper can be lifted to a certain height through the top column, thereby facilitating the replacement of the tipping paper.

[0021] 3. In the present application, when the bearing plate moves, the rotating plate can be driven to rotate, after punching, the rotating plate is controlled to rotate, and the adhesion of the tipping paper to the bearing plate can be avoided.

[0022] 4. In the present application, only the movement of the bearing plate needs to be controlled, and the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic view of the overall structure of the present application;

[0024] Figure 2 It is a schematic view of the overall structure of the present application; Figure 1 It is an enlarged schematic view of A in the present application.

[0025] Figure 3 The structure diagram of the first gear, the limiting press strip and the top block in the application;

[0026] Figure 4 The overall structure diagram of the application in another angle;

[0027] Figure 5 The diagram of the first gear driving the limiting press strip and the top block to rotate in the application;

[0028] Figure 6 The diagram of the top block driving the top plate in the application;

[0029] Figure 7 The specific structure diagram of the reciprocating control mechanism in the application;

[0030] Figure 8 The diagram of the reciprocating control mechanism in another motion state in the application.

[0031] In the figure: 1. leg, 2. first rack, 3. frame, 4. straight sliding slot, 5. handle, 6. top block, 7. rotating plate, 8. bearing plate, 9. top column, 10. laser drilling mechanism, 11. sliding block, 12. guide rod, 13. connecting block, 14. rotating rod, 15. first gear, 16. limiting press strip, 17. connecting plate, 18. connecting frame, 19. second rack, 20. limiting spring, 21. top plate, 22. connecting column, 23. second gear, 24. fan blade, 25. reciprocating control mechanism, 251. arc-shaped sliding slot, 252. fifth gear, 253. sixth gear, 254. fourth gear, 255. third gear. DETAILED DESCRIPTION

[0032] The application will be described in detail below with reference to the accompanying drawings. Figures 1 to 8 The embodiments of the application will be described in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the application, and are not intended to limit the protection scope of the application. EMBODIMENT

[0033] A laser drilling device for cigarette tipping paper, as shown in the accompanying drawings Figure 1As shown, including the rack 3, the rack 3 includes two longitudinal rods along the front and rear direction and two transverse rods along the left and right direction, the longitudinal rod and the transverse rod form a frame type, and the bottom is provided with a support leg 1, the rack 3 is provided with a laser punching mechanism 10 and a movable bearing plate 8, the laser punching mechanism 10 includes a bracket and a laser head, the longitudinal rod is provided with a linear sliding groove 4, the bearing plate 8 is slidably arranged in the linear sliding groove 4, the bearing plate 8 is placed on the bearing plate 8 after the cutting of the tipping paper, so that the tipping paper is moved under the laser punching mechanism 10, and the punching of the tipping paper is realized. This part is prior art and will not be described in detail here.

[0034] As shown in the accompanying drawings Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the bearing plate 8 is provided with five through holes, the through holes are respectively arranged in the middle and the periphery of the bearing plate 8, the through hole located in the middle is rotatably provided with a rotating plate 7 flush with the top of the bearing plate 8, and the through hole located in the periphery is provided with a top column 9. In the natural state, the top column 9 is not higher than the top of the bearing plate 8. The left and right ends of the front side of the bearing plate 8 are provided with connecting blocks 13, the connecting blocks 13 are provided with rotating shafts along the left and right directions, the rotating shafts are rotatably connected with first gears 15 and "F"-shaped limiting pressing strips 16, and the two first gears 15 are fixedly provided with a rotating rod 14, the rotating rod 14 is fixedly connected with a top block 6. The rack 3 close to the front side is provided with a first rack 2 matched with the first gear 15. When the first gear 15 moves close to the first rack 2, the first gear 15 moves above the first rack 2 along the first rack 2, drives the limiting pressing strip 16, the rotating rod 14 and the top block 6 to rotate. The bottom of the four top columns 9 is provided with a top plate 21. When the top block 6 rotates, the top plate 21 and the top column 9 are driven upward. The bottom of the rotating plate 7 is provided with a second gear 23, the axis of the second gear 23 is along the vertical direction. The rack 3 is provided with a second rack 19 matched with the second gear 23 through a connecting frame 18. When the bearing plate 8 moves, the second gear 23 moves along the second rack 19, and the rotating plate 7 is driven to rotate by the second gear 23.

[0035] Working principle: when the bearing plate 8 moves, the second gear 23 moves along the second rack 19, and the rotating plate 7 is driven to rotate, so that the relative movement between the rotating plate 7 and the tipping paper can be realized, thereby avoiding adhesion with the tipping paper; when the bearing plate 8 moves first, the first gear 15 contacts the first rack 2, and then the first gear 15 moves along the first rack 2, rotates, drives the limiting pressing strip 16 to limit the bearing plate 8, and no longer limits the bearing plate 8, drives the top block 6 to move to the bottom of the top plate 21, and drives the top plate 21, drives the top column 9 to move upward through the top plate 21, and drives the tipping paper to rise to a certain height through the top column 9.

[0036] In addition, it should be noted that the top plate 21 and the bearing plate 8 are provided with a limiting spring 20, and the connecting block 13 and the limiting pressing strip 16 are provided with a limiting torsion spring. When no external force is applied, the limiting pressing strip 16 can be limited, and the top column 9 can be lower than the through hole, so as to ensure the position of the tipping paper. In addition, the limiting pressing strip 16 can also be made of a magnetic material, which can be attracted to the bearing plate 8 in a natural state, and the top column 9 can be lowered by its own gravity to realize the limiting effect.

[0037] In addition, it should be noted that the handle 5 is arranged on the rotating rod 14 in the embodiment. The handle 5 can push and pull the rotating rod 14 to move forward and backward, and does not affect the rotation of the rotating rod 14.

[0038] In addition, it should be noted that the rotating plate 7 and the top column 9 are both cylindrical in the embodiment. The top column 9 is screw-connected with the bearing plate 8 and is provided with a ball, that is, a ball screw structure. The bottom of the top column 9 is rotatably arranged on the top plate 21. When the top column 9 is lifted, it can rotate. When the tipping paper is removed, even if slight adhesion occurs, the top column 9 can be separated from the tipping paper through the rotation of the top column 9, so as to facilitate the removal of the tipping paper.

[0039] In specific use, first, the handle 5 is used to pull the bearing plate 8 to the most forward direction. At this time, the rear end of the limiting pressing strip 16 is lifted and away from the bearing plate 8, and the top column 9 is lifted. The cut tipping paper can be placed on the bearing plate 8 and temporarily supported by the top column 9. Then, the handle 5 is used to push the bearing plate 8 to move backward. During the movement, the top column 9 is lowered first, so that the tipping paper is placed flat on the bearing plate 8. Then, the limiting pressing strip 16 approaches the bearing plate 8 to press and fix the tipping paper. The bearing plate 8 is continuously pushed backward until the tipping paper corresponds to the laser punching mechanism 10. Then, the laser punching mechanism 10 is started to punch the tipping paper. After the punching, the bearing plate 8 is immediately pushed and pulled to drive the rotating plate 7 to rotate, so as to avoid adhesion between the rotating plate 7 and the tipping paper after the punching. Then, the bearing plate 8 is moved to correspond to the laser punching mechanism 10 to complete the next punching. In this way, the whole tipping paper is punched. After the punching is completed, the bearing plate 8 is moved to the front end, the limiting pressing strip 16 no longer limits the tipping paper, and the top column 9 lifts the tipping paper. The tipping paper can be replaced.

[0040] In the perforating process of the embodiment, the tipping paper on the bearing plate 8 is limited by the limiting press strip 16. When the bearing plate 8 approaches the first rack 2 and the first gear 15 contacts the first rack 2, the first gear 15 rotates to drive the limiting press strip 16 to move away from the bearing plate 8, so that the tipping paper is no longer limited, thereby facilitating the limitation of the tipping paper during perforating. In the application, when the first gear 15 rotates, the rotating rod 14 and the top block 6 are sequentially driven to rotate. The top plate 21 and the top column 9 are sequentially driven to rise by the top block 6. That is, when the limiting press strip 16 no longer limits the tipping paper, the tipping paper can also be lifted to a certain height by the top column 9, thereby facilitating the replacement of the tipping paper. In the application, when the bearing plate 8 moves, the rotating plate 7 can be driven to rotate. After perforating, the rotating plate 7 is controlled to rotate, which can avoid the adhesion of the tipping paper to the bearing plate 8. The whole process of the application only needs to control the forward and backward movement of the bearing plate 8, which is simple and convenient to operate. Embodiment

[0041] As shown in the accompanying drawings, Figure 1 , Figure 4 The difference between the embodiment and the first embodiment is that the bottom of the rotating plate 7 is provided with a fan blade 24 in the embodiment. Specifically, the bottom of the rotating plate 7 is provided with a connecting column 22, and the second gear 23 is sleeved on the connecting column 22. The bottom of the connecting column 22 is connected with the fan blade 24 through the reciprocating control mechanism 25. When the connecting column 22 performs forward and reverse rotation, the fan blade 24 always rotates in one direction.

[0042] Working principle: when the bearing plate 8 moves forward and backward, the rotating plate 7 rotates, and then the connecting column 22 and the fan blade 24 rotate. The upward airflow is generated by the fan blade 24. After perforating, the temperature is high. By pushing and pulling the bearing plate 8 to move, the temperature near the bearing plate 8 can be lowered in time through the airflow, thereby avoiding the adhesion of the tipping device under high temperature.

[0043] In the embodiment, the fan blade 24 can cooperate with each structure to move, generate airflow and cool during the perforating process, without the need to separately install a cooling device.

[0044] As shown in the accompanying drawings, Figure 1 , Figure 4 , Figure 7 , Figure 8As shown, the reciprocating control mechanism 25 includes a third gear 255 fixedly connected with the connecting column 22, the third gear 255 is engaged with a fourth gear 254, the fourth gear 254 is rotatably and slidably arranged in an arc-shaped sliding groove 251, and further includes a fifth gear 252 and a sixth gear 253 engaged with each other, the fourth gear 254 can be engaged with the fifth gear 252 or the sixth gear 253 through sliding, the sixth gear 253 is fixedly connected with the fan blade 24, the third gear 255, the fifth gear 252 and the sixth gear 253 are oppositely rotatably arranged on the bearing plate 8, and the arc-shaped sliding groove 251 is oppositely fixedly arranged on the bearing plate 8. Specifically, a fixed frame (not shown in the figure) can be arranged below the bearing plate 8, the third gear 255, the fifth gear 252 and the sixth gear 253 can be rotatably arranged on the fixed frame, and the arc-shaped sliding groove 251 is fixedly arranged on the fixed frame, so as to realize the installation of each part.

[0045] Working principle: when the connecting column 22 rotates clockwise, referring to the attached Figure 7 , the third gear 255 is driven to rotate clockwise, the third gear 255 drives the fourth gear 254 to slide to the clockwise end (the right end in the figure) of the arc-shaped sliding groove 251, and the fourth gear 254 rotates counterclockwise, thereby driving the sixth gear 253 to rotate clockwise, the sixth gear 253 drives the fan blade 24 to rotate clockwise, and upward airflow is generated; when the connecting column 22 rotates counterclockwise, referring to the attached Figure 8 , the third gear 255 is driven to rotate counterclockwise, the third gear 255 drives the fourth gear 254 to slide to the counterclockwise end (the left end in the figure) of the arc-shaped sliding groove 251, and the fourth gear 254 rotates clockwise, the fourth gear 254 drives the fifth gear 252 to rotate counterclockwise, the fifth gear 252 drives the sixth gear 253 to rotate clockwise, the sixth gear 253 drives the fan blade 24 to rotate clockwise, and upward airflow is generated; thereby realizing that the fan blade 24 always rotates in one direction when the rotating plate 7 rotates forward and reversely.

[0046] In addition, it should be noted that the fourth gear 254 should be provided with a certain damping to ensure that it can smoothly slide along the arc-shaped sliding groove 251 when the third gear 255 switches forward and reversely, and does not rotate when sliding.

[0047] As shown in the attached Figure 1 , Figure 2 , one side of the rack 3 is provided with a rodless air cylinder, which can be a magnetic coupling type rodless air cylinder. The rodless air cylinder includes a guide rod 12 and a sliding block 11, the sliding block 11 is fixedly connected with a connecting block 13 through a connecting plate 17, the rodless air cylinder is electrically connected with a controller, the controller controls the movement of the bearing plate 8, specifically, the bearing plate 8 moves forward and backward once after each processing, driving the fan blade 24 to rotate and heat dissipation in time.

[0048] In specific work, the bearing plate 8 is controlled by the electric control, and specifically, the working process of the bearing plate 8 is as follows: in the initial position, the bearing plate 8 is located at the front end of the rack 3, then the bearing plate 8 moves backward to the first punching position corresponding to the laser punching mechanism 10, after the first punching, the bearing plate 8 moves forward by a certain distance, then moves backward to the second punching position corresponding to the laser punching mechanism 10, after the second punching, the bearing plate 8 moves forward by a certain distance, then moves backward to the third punching position corresponding to the laser punching mechanism 10, and so on, until the punching on the tipping paper is completed, and finally the bearing plate 8 is reset to the initial position for paper replacement.

[0049] In the embodiment, the bearing plate is controlled by the electric control, and only manual operation is needed for replacing the tipping paper, which is simple and convenient, saves manpower, and can more accurately control the relative position of the bearing plate 8 and the laser punching mechanism 10 through the electric control, so that the punching is more accurate.

[0050] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without departing from the principles of the present application, and the technical scheme after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A laser perforating device for tipping paper for cigarettes, comprising a frame (3) provided with a laser perforating mechanism (10) and a movable support plate (8), characterized in that, The bearing plate (8) is provided with a plurality of through holes, a part of the through holes are provided with top columns (9), and the other part of the through holes are provided with rotating plates (7) which are flush with the top of the bearing plate (8). The bearing plate (8) is provided with a first gear (15) on the front side, the first gear (15) is fixedly connected with a limiting pressing strip (16) and a rotating rod (14), the rotating rod (14) is connected with a top block (6), the rack (3) is provided with a first rack (2) which is matched with the first gear (15) near the front side, when the first gear (15) moves close to the first rack (2), the limiting pressing strip (16), the rotating rod (14) and the top block (6) are driven to rotate, the bottom of the top column (9) is provided with a top plate (21), when the top block (6) rotates, the top plate (21) and the top column (9) are driven to move upward, the bottom of the rotating plate (7) is provided with a second gear (23), the rack (3) is provided with a second rack (19) which is matched with the second gear (23), when the bearing plate (8) moves, the rotating plate (7) is driven to rotate through the second gear (23).

2. A laser perforating device for tipping paper for cigarettes according to claim 1, characterized in that, The through holes are arranged in the middle and around the bearing plate (8), the rotating plate (7) is arranged in the through hole in the middle, the top columns (9) are arranged in the through holes around the bearing plate (8), the top plate (21) is in the shape of a frame and is connected with the bottoms of the top columns (9) respectively, the left and right ends of the front side of the bearing plate (8) are provided with connecting blocks (13), the first gear (15) and the limiting pressing strip (16) are provided with two groups and are rotatably connected with the corresponding connecting blocks (13), the rotating rod (14) is fixedly arranged between the two first gears (15).

3. A laser perforating device for tipping paper for cigarettes according to claim 2, characterized in that, The limiting spring (20) is arranged between the top plate (21) and the bearing plate (8), and the limiting torsion spring is arranged between the connecting block (13) and the limiting pressing strip (16).

4. A laser perforating device for tipping paper for cigarettes according to claim 1, characterized in that, The bottom of the rotating plate (7) is provided with a fan blade (24).

5. A laser perforating device for tipping paper for cigarettes according to claim 4, characterized in that, The bottom of the rotating plate (7) is provided with a connecting column (22), the second gear (23) is sleeved on the connecting column (22), the bottom of the connecting column (22) is connected with the fan blade (24) through a reciprocating control mechanism (25), when the connecting column (22) does positive and negative rotation, the fan blade (24) always rotates in one direction.

6. A laser perforating device for tipping paper for cigarettes according to claim 5, characterized in that, The reciprocating control mechanism (25) comprises a third gear (255) fixedly connected with the connecting column (22), the third gear (255) is engaged with a fourth gear (254), the fourth gear (254) is rotatably and slidably arranged in an arc-shaped sliding groove (251), and further comprises a fifth gear (252) and a sixth gear (253) which are engaged, the fourth gear (254) can be engaged with the fifth gear (252) or the sixth gear (253) through sliding, the sixth gear (253) is fixedly connected with the fan blade (24), the third gear (255), the fifth gear (252) and the sixth gear (253) are rotatably arranged on the bearing plate (8), and the arc-shaped sliding groove (251) is fixedly arranged on the bearing plate (8).

7. A laser perforating device for tipping paper for cigarettes according to claim 5, characterized in that, The rack (3) is provided with a rodless air cylinder on one side, the rodless air cylinder comprises a guide rod (12) and a sliding block (11), the sliding block (11) is fixedly connected with the front side of the bearing plate (8), the rodless air cylinder is electrically connected with a controller, and the bearing plate (8) is controlled to move forward and backward once after machining once, so as to drive the fan blade (24) to rotate and dissipate heat.

8. A laser perforating device for tipping paper for cigarettes according to claim 1, characterized in that, The handle (5) is rotationally arranged on the rotating rod (14).

9. A laser perforating device for tipping paper for cigarettes according to any one of claims 1 to 8, characterized in that, The rotating plate (7) and the top column (9) are both in a cylindrical shape, the top column (9) is threadedly connected with the bearing plate (8) and is provided with a ball, and the bottom of the top column (9) is rotationally arranged on the top plate (21).

10. A laser perforating device for tipping paper for cigarettes according to any one of claims 1 to 8, characterized in that, The limiting pressing strip (16) is in an "F" shape.

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