A deviation rectifying device of a cigarette making machine and a deviation rectifying method thereof

Abstract

This invention discloses a correction device for a cigarette rolling machine, comprising two symmetrically arranged mounting plates. A lead screw is rotatably connected between the two mounting plates via a bearing. One end of the lead screw passes through one of the mounting plates and is connected to a handwheel. Two movable plates are symmetrically threaded onto the surface of the lead screw. Correction plates are connected to the bottom ends of both movable plates. Two guide rods are symmetrically arranged horizontally between the two mounting plates. A connecting block is fixedly connected between the two guide rods, located between the two movable plates. A fixed plate is located at the bottom end of the connecting block. Several connecting rods are threaded through the surface of the fixed plate. A buffer plate is located at the bottom end of the connecting rods, and a buffer pad is laid at the bottom end of the buffer plate. This invention fundamentally reduces problems such as excessive length, misalignment, and curling edges of cigarette tipping paper, improving the stability of cigarette tipping quality. Simultaneously, it adapts to tipping paper of different widths, expanding the applicability of the device.

Description

Technical Field

[0001] This invention relates to the field of cigarette manufacturing equipment technology, and in particular to a correction device and correction method for a cigarette machine. Background Technology

[0002] In cigarette production, tipping paper is a key auxiliary material, mainly used to wrap the mouthpiece at the end of the cigarette. Since it comes into direct contact with the smoker's mouth, it's crucial to ensure not only its appearance but also the stability and precision of the conveying and tipping process. The tipping paper has a short conveying stroke on the cigarette rolling machine, making it prone to instability during transport, with shaking being particularly prominent. This shaking is especially exacerbated during transitions between operating conditions such as acceleration, deceleration, tipping paper splicing, and machine restarts.

[0003] The wobbling of the tipping paper directly causes a shift in its relative position to the glue roller, resulting in the center of the un-glue area on the tipping paper surface deviating from its preset position. This positional deviation can lead to malfunctions in subsequent cutting processes, specifically, the circular blades on the cutting drum becoming contaminated with glue, ultimately resulting in poor tipping paper cutting and affecting the overall quality of the cigarette product. Therefore, precise correction during the tipping paper feeding process to prevent positional deviation is a crucial step in ensuring the continuity of cigarette production and the product qualification rate.

[0004] The existing correction devices in cigarette making machines have many shortcomings in practical applications, making it difficult to meet the demands of high-precision production. On one hand, when adjusting the correction structures on both sides, unilateral displacement deviations are prone to occur, making it impossible to ensure that the correction structures on both sides move synchronously and symmetrically towards or away from the tipping paper. This results in a tilted guide in the tipping paper conveying channel. This tilted guide can cause a series of quality defects such as excessive tipping paper length, misaligned teeth, and curled edges, reducing the stability of cigarette tipping.

[0005] On the other hand, during high-speed conveying, the tipping paper is affected by various factors such as tension fluctuations, path friction, and equipment vibration. This can easily lead to abnormal shapes such as bulges and bends in the middle area, forming obvious protrusions or creases. These defects result in uneven cutting of the tipping paper, causing incomplete wrapping when joined with the cigarette. In severe cases, they can even lead to major quality incidents such as paper edge folding, affecting product quality, wasting a large amount of tipping paper materials, increasing production costs, and reducing production efficiency. Summary of the Invention

[0006] Therefore, the purpose of this invention is to provide a correction device for a cigarette machine with a reasonable structural design, precise adjustment, and stable operation, so as to solve the technical problems of swaying and deviation and abnormal shape during the feeding of the paper, and to ensure the quality and efficiency of cigarette production. At the same time, this invention also provides a correction method for a cigarette machine, which is applied to a correction device for a cigarette machine.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A correction device for a cigarette rolling machine includes two symmetrically arranged mounting plates. A lead screw is rotatably connected between the two mounting plates via a bearing. The left and right sides of the lead screw have threads with opposite rotation directions. One end of the lead screw passes through one of the mounting plates and is connected to a handwheel. A plurality of positioning grooves are evenly spaced around the through hole of the lead screw on the surface of one of the mounting plates. A bolt that can selectively be inserted into any one of the positioning grooves is passed through the surface of the handwheel. Two movable plates are symmetrically threaded onto the surface of the lead screw. Correction plates are connected to the bottom ends of both movable plates. The correction plates are connected to the mounting plates via correction rollers passing through their surfaces. Connected together, the alignment plates can slide left and right relative to the alignment roller. Soft ribs are fixedly attached to the opposing inner surfaces of both alignment plates. Two guide rods are horizontally arranged symmetrically between the two mounting plates. A connecting block is fixedly connected between the two guide rods and is located between the two movable plates. A fixed plate is provided at the bottom of the connecting block. Several connecting rods are arranged through the surface of the fixed plate. A buffer plate is provided at the bottom of the connecting rods. A buffer pad is laid at the bottom of the buffer plate. Several shallow longitudinal grooves are formed on the bottom surface of the buffer pad. Springs are fitted onto the surface of the connecting rods, and the upper and lower ends of the springs are connected to the fixed plate and the buffer plate, respectively.

[0008] Furthermore, there are two mounting plates arranged in parallel opposite directions, and the bearings are embedded in the pre-set mounting holes of the mounting plates.

[0009] Furthermore, one end of the lead screw passes through one of the mounting plates and is fixedly connected to a handwheel, with the handwheel located on the outside of one of the mounting plates.

[0010] Furthermore, two movable plates are arranged in parallel opposite positions. The surfaces of the two movable plates are respectively provided with aligned movable through holes. The two movable plates can be adapted to be connected to the reverse threads of the left and right parts of the lead screw through the movable through holes. The bottom ends of the two movable plates are fixedly connected to the correction plate, which is arranged vertically. The left and right ends of the correction roller are respectively fixed to the inner surfaces of the two mounting plates.

[0011] Furthermore, two guide rods are arranged horizontally and parallel to each other, with the axis of the guide rod parallel to the axis of the lead screw, and the two guide rods are located on the left and right sides below the lead screw, respectively, and the connecting block is located in the middle between the two movable plates.

[0012] Furthermore, the fixing plate is arranged horizontally, and the connecting rod is arranged vertically from the upper end face of the fixing plate to the lower end face of the fixing plate. The connecting rod is slidably engaged with the fixing plate and can move up and down relative to the fixing plate. The buffer plate is parallel to the fixing plate, and the bottom end of the connecting rod is fixedly connected to the upper end face of the buffer plate. The buffer pad is made of flexible wear-resistant material, and the bottom surface of the buffer pad has multiple shallow longitudinal grooves along the feeding direction of the paper. The upper and lower ends of the spring are fixedly connected to the bottom surface of the fixing plate and the top surface of the buffer plate, respectively. A limit plate is fixedly installed at the top end of the connecting rod.

[0013] Furthermore, the positioning grooves are evenly distributed around the through hole of one of the mounting plates, with the lead screw passing through it. The bolts are threadedly engaged with the handwheel, and the ends of the bolts can be inserted into or pulled out of the corresponding positioning grooves by turning the bolts.

[0014] The present invention also provides a method for correcting the deviation of a cigarette machine, which is applied to the above-mentioned correction device for a cigarette machine, and the specific steps include: Step S1: Width Adjustment Stage First, loosen the bolt on the handwheel so that the bolt end disengages from the positioning groove on the mounting plate, releasing the lock on the lead screw. Then, the operator turns the handwheel, causing the lead screw to rotate around its own axis. Since the lead screw has reverse threads on both sides, and the two movable plates are threaded onto the reverse threads respectively, and the movable plates are fitted onto the guide rod and slide in cooperation with the correction roller, under the dual guiding and limiting action of the guide rod and the correction roller, the two movable plates move synchronously and symmetrically along the lead screw. That is, when the handwheel is turned clockwise, the two movable plates move closer to each other; when the handwheel is turned counterclockwise, the two movable plates move further apart, until a conveying channel that matches the width of the current paper being fed is formed between the correction plates. At this point, stop turning the handwheel. Step S2: Position Locking Phase Tighten the bolt on the handwheel so that the end of the bolt is precisely inserted into a positioning slot on the mounting plate that is aligned with the bolt. Since there are multiple positioning slots evenly spaced on the mounting plate, the operator can rotate the handwheel to different angles as needed to make the bolt correspond to different positioning slots, thereby achieving reliable locking after multi-level width adjustment. The handwheel position is locked by the insertion and cooperation of the bolt and the positioning slot, thereby fixing the lead screw and preventing the lead screw from rotating under the vibration of the cigarette machine, ensuring that the position of the movable plate and the correction plate remains stable, and the width of the paper feeding channel remains unchanged. Step S3: Paper feeding and correction stage The tipping paper is conveyed at high speed along the conveying channel formed by the correction plates. The correction plates on both sides limit the tipping paper to prevent it from shifting to the left or right and avoid misalignment with the cigarette. At the same time, the buffer plate, under the elastic force of the spring, flexibly adheres to the top surface of the tipping paper through the buffer pad at the bottom. The spring can adaptively extend and retract according to the tension fluctuations and slight bulges during the tipping paper's conveying, adjusting the contact force of the buffer plate with the tipping paper to always keep the tipping paper flat. This effectively suppresses bulging and bending in the middle area of ​​the tipping paper, ensuring that the tipping paper is conveyed smoothly. The limiting plate at the top of the connecting rod restricts the downward stroke of the connecting rod, preventing the connecting rod from falling off due to excessive force on the buffer plate, ensuring the stable operation of the buffer structure. When it is necessary to change the tipping paper of different widths, the above width adjustment and position locking steps can be repeated. The operation is convenient, highly adaptable, and can continuously provide stable correction guarantee for cigarette production.

[0015] Compared with the prior art, the technical solution described in this invention has the following beneficial effects: 1. This invention utilizes the reverse threads on both sides of the lead screw in conjunction with a handwheel adjustment. This allows the two movable plates to move synchronously and symmetrically closer or further apart when the handwheel is turned, solving the problems of unilateral displacement deviation and asymmetrical correction structures on both sides that are common in existing devices. This prevents the tipping paper conveying channel from forming an inclined guide, fundamentally reducing quality problems such as excessive length of cigarette tipping paper, misaligned teeth, and curled edges, thus improving the stability of cigarette tipping quality. At the same time, the multi-stage insertion and engagement of the positioning groove and bolts allows for multi-stage precise adjustment of the tipping paper conveying channel width, adapting to tipping paper of different widths and significantly expanding the applicability of the device to meet diverse production needs. 2. This invention, through the insertion and engagement of the positioning groove and bolt, can firmly lock the handwheel and screw position after the feed paper width is adjusted to the correct position, effectively preventing the screw from rotating due to vibration during cigarette machine operation, thereby avoiding changes in the width of the feed paper conveying channel caused by the displacement of the movable plate. It eliminates the need for frequent readjustment by operators, significantly improves the reliability of the device operation, reduces manual intervention, increases cigarette production efficiency, and reduces labor costs. 3. This invention provides stable sliding support for the correction plate through the correction roller, and combines the guiding and limiting effect of the guide rod on the movable plate to form a double guiding and limiting structure, so that the correction plate always maintains a vertical posture when it moves with the movable plate. The two work together to form a regular and stable feeding paper conveying channel, which accurately limits the feeding paper in the conveying process from both sides, effectively preventing the feeding paper from shifting and causing misalignment with the cigarette, further ensuring the feeding quality and reducing quality defects caused by misalignment. 4. In this invention, the two parallel guide rods not only restrict the rotation of the movable plate and ensure that the movable plate moves smoothly only in the horizontal direction, improving the stability and accuracy of the movement of the movable plate and the correction plate, but also achieve a fixed connection between the two guide rods through the connecting block. This not only ensures the stability of the relative position of the guide rods themselves, but also enhances the rigidity of the overall structure of the device, avoids component deformation after long-term operation, extends the service life of the device, and ensures long-term stability of the correction accuracy. 5. The fixed plate, connecting rod, buffer plate, spring, buffer pad, and limiting plate of this invention ensure that the buffer plate remains in close contact with the surface of the splicing paper under the elastic force of the spring. The buffer pad is made of flexible and wear-resistant material, which can avoid damage to the splicing paper caused by hard contact and protect the integrity of the splicing paper's appearance. At the same time, the spring can adaptively extend and retract according to the force changes caused by tension fluctuations and path friction during high-speed conveying of the splicing paper, flexibly adjusting the contact force of the buffer plate with the splicing paper, effectively suppressing the protrusion and bending of the middle area of ​​the splicing paper, keeping the splicing paper conveyed flat, reducing serious quality accidents such as uneven cutting, incomplete splicing, and paper edge folding caused by abnormal paper shape, reducing waste of splicing paper auxiliary materials, and controlling production costs. The setting of the limiting plate can limit the downward stroke of the connecting rod, preventing the connecting rod from falling off the fixed plate due to excessive force on the buffer plate, further improving the operational safety and stability of the buffer structure, and ensuring the continuous and stable operation of the device. Other beneficial effects of this invention will be further explained in the following specific embodiments. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view structural diagram of the present invention: Figure 3 This is a side view of one of the mounting plates of the present invention. Figure 4 This is a side view sectional view of the present invention; The components are: 1. Mounting plate; 2. Fixing plate; 3. Connecting block; 4. Limiting plate; 5. Screw; 6. Guide rod; 7. Movable plate; 8. Correcting roller; 9. Bolt; 10. Handwheel; 11. Positioning groove; 12. Correcting plate; 13. Spring; 14. Buffer pad; 15. Buffer plate; 16. Connecting rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 4 As shown, this invention discloses a correction device for a cigarette rolling machine. It includes two symmetrically arranged mounting plates 1, with a lead screw 5 rotatably connected between the two mounting plates 1 via bearings. The left and right sides of the lead screw 5 have threads with opposite rotation directions on their surfaces. One end of the lead screw 5 passes through one of the mounting plates 1 and is connected to a handwheel 10. On the surface of one of the mounting plates 1, several positioning slots 11 are evenly spaced around the through hole of the lead screw 5. A bolt 9, capable of selectively inserting into any of the positioning slots 11, passes through the surface of the handwheel 10. Two movable plates 7 are symmetrically threaded onto the surface of the lead screw 5. A correction plate 12 is connected to the bottom end of each movable plate 7. The correction plate 12 is connected to the mounting plate 1 via a correction roller 8 passing through its surface. 2. It can slide left and right relative to the correction roller 8. The inner sides of the two correction plates 12 are fixedly pasted with soft rib strips. Two guide rods 6 are horizontally arranged symmetrically between the two mounting plates 1. A connecting block 3 is fixedly connected between the two guide rods 6. The connecting block 3 is located between the two movable plates 7. A fixed plate 2 is provided at the bottom of the connecting block 3. Several connecting rods 16 are provided through the surface of the fixed plate 2. A buffer plate 15 is provided at the bottom of the connecting rod 16. A buffer pad 14 is laid at the bottom of the buffer plate 15. Several longitudinal shallow grooves are opened on the bottom surface of the buffer pad 15. A spring 13 is sleeved on the surface of the connecting rod 16. The upper and lower ends of the spring 13 are connected to the fixed plate 2 and the buffer plate 15, respectively.

[0019] In the embodiments described in this invention, two mounting plates 1 are arranged in parallel opposite positions. The two mounting plates 1 constitute the overall mounting base frame of the device, which is used to support various functional components. The bearings are embedded in the preset mounting holes of the mounting plates 1 to ensure that the lead screw 5 can rotate flexibly relative to the mounting plates 1 while keeping the axial position fixed.

[0020] In the embodiments of the present invention, the reverse thread structure on the surface of the lead screw 5 provides a power basis for the symmetrical movement of the two movable plates 7. One end of the lead screw 5 passes through one of the mounting plates 1 and is fixedly connected to the handwheel 10. The handwheel 10 is located on the outside of one of the mounting plates 1, which is convenient for the operator to manually adjust. Specifically, the right end of the lead screw 5 is rotatably connected to the mounting plate 1 located on the right side via a bearing, and the left end of the lead screw 5 passes through the surface of the mounting plate 1 located on the left side and extends a distance outward from the mounting plate 1 located on the left side to be fixedly connected to the handwheel 10. At the same time, the left end of the lead screw 5 is rotatably connected to the mounting plate 1 located on the left side via a bearing.

[0021] In the embodiments of the present invention, two movable plates 7 are arranged in parallel opposite directions. The surfaces of the two movable plates 7 are respectively provided with aligned movable through holes. The two movable plates 7 can be adapted to be connected to the reverse threads of the left and right parts of the lead screw 5 through the movable through holes. This ensures that when the handwheel 10 is rotated, the rotation of the handwheel 10 drives the lead screw 5 to rotate, so that the two movable plates 7 can move synchronously closer to each other or further away from each other. The bottom ends of the two movable plates 7 are fixedly connected to the correction plate 12. The correction plate 12 is arranged vertically and is used to limit the feeding paper on both sides. The soft rubber strip pasted on the inner side of the correction plate 12 flexibly contacts the edge of the feeding paper to avoid scratches and curling, and improve the appearance integrity of the feeding paper. The left and right ends of the correction roller 8 are respectively fixed to the inner surfaces of the two mounting plates 1. The correction plate 12 can slide relative to the correction roller 8 along the horizontal extension direction of the correction roller 8. The correction plate 12 always maintains a stable movement trajectory when it moves with the movable plates 7, effectively preventing the correction plate 12 from deviating or tilting.

[0022] In the embodiment of the present invention, two guide rods 6 are arranged in a horizontally parallel and opposite manner. The axis of the guide rod 6 is parallel to the axis of the lead screw 5, and the two guide rods 6 are respectively located on the left and right sides below the lead screw 5. The guide rods 6 are used to guide and limit the movement of the movable plate 7, so as to increase the stability of the movable plate 7 when driving the correction plate 12 to move left and right, and further prevent the correction plate 12 from tilting during the movement. The connecting block 3 is located in the middle position between the two movable plates 7. The fixed connection of the connecting block 3 not only ensures the stability of the relative position of the two guide rods 6, but also provides a mounting carrier for the buffer plate 15.

[0023] In the embodiments described in this invention, the fixing plate 2 is arranged horizontally, and the connecting rod 16 is arranged vertically from the upper end face of the fixing plate 2 to the lower end face of the fixing plate 2, and the connecting rod 16 is slidably engaged with the fixing plate 2, allowing the connecting rod 16 to move up and down relative to the fixing plate 2. The buffer plate 15 is parallel to the fixing plate 2, and the bottom end of the connecting rod 16 is fixedly connected to the upper end face of the buffer plate 15. The buffer pad 14 is made of flexible and wear-resistant material and is used for flexible contact with the splicing paper. The bottom surface of the buffer pad 14 has multiple shallow longitudinal grooves along the splicing paper conveying direction to prevent the negative pressure of the splicing paper from adsorbing and sticking to the paper, ensuring splicing... The paper surface is free of drag marks and the conveying is smoother. The upper and lower ends of the spring 13 are fixedly connected to the bottom surface of the fixed plate 2 and the top surface of the buffer plate 15, respectively, to provide elastic support for the up and down movement of the buffer plate 15. The top end of the connecting rod 16 is fixedly installed with a limiting plate 4, which is used to limit the downward stroke of the connecting rod 16 and prevent the connecting rod 16 from falling off the fixed plate 2. The spring 13 can adaptively extend and retract according to the tension fluctuation and slight bulging state during the conveying of the spliced ​​paper, adjust the contact force of the buffer plate 15 with the spliced ​​paper, and always keep the spliced ​​paper flat, effectively suppressing the bulging and bending in the middle area of ​​the spliced ​​paper, and ensuring that the spliced ​​paper is conveyed flat.

[0024] In the embodiments of the present invention, the positioning grooves 11 are evenly distributed circumferentially around the through hole through which the lead screw 5 passes through one of the mounting plates 1. The bolt 9 is threadedly engaged with the handwheel 10. By tightening the bolt 9, the end of the bolt 9 can be inserted into or pulled out of the corresponding positioning groove 11, thereby locking the position of the handwheel 10 and the lead screw 5. When the handwheel 10 rotates to the required angle, the lead screw 5 rotates and drives the two movable plates 7 to move towards the middle part of the lead screw 5. This causes the two movable plates 7 to drive the two correction plates 12 to move towards the direction of the connecting block 3 until the two correction plates 12 stop at a specific position. This position forms a conveying channel between the two correction plates 12 that is adapted to the current width of the spliced ​​paper. Tightening the bolt 9 so that its end is inserted into the corresponding positioning groove 11 locks the circumferential position of the handwheel 10 and the lead screw 5. Since there are several positioning grooves 11, the bolt 9 can be selectively inserted into different positioning grooves 11, thereby achieving multi-level precise adjustment and locking to adapt to the needs of spliced ​​paper of different widths.

[0025] In this invention, the reverse threads on both sides of the lead screw 5, in conjunction with the handwheel 10, allow the two movable plates 7 to move synchronously and symmetrically closer or further apart when the handwheel 10 is turned. This solves the problems of unilateral displacement deviation and asymmetrical correction structures on both sides that are common in existing devices during adjustment. It also prevents the tipping paper conveying channel from forming an inclined guide, thereby reducing quality problems such as excessive length of cigarette tipping paper, misaligned teeth, and curled edges from the root cause, and improving the stability of cigarette tipping quality. At the same time, the multi-stage insertion and engagement of the positioning groove 11 and the bolt 9 allows for multi-stage precise adjustment of the width of the tipping paper conveying channel, adapting to tipping paper of different widths and specifications, greatly expanding the applicability of the device and meeting diverse production needs. In this invention, the positioning groove 11 and the bolt 9 are connected and engaged to securely lock the handwheel 10 and the screw 5 after the width of the feed paper is adjusted to the correct position. This effectively prevents the screw 5 from rotating due to vibration during the operation of the cigarette machine, thereby avoiding displacement of the movable plate 7 and changes in the width of the feed paper conveying channel. This eliminates the need for frequent readjustment by the operator, significantly improves the reliability of the device operation, reduces manual intervention, increases cigarette production efficiency, and reduces labor costs. In this invention, the correction roller 8 provides stable sliding support for the correction plate 12, and the guide rod 6 guides and limits the movable plate 7, forming a double guide and limit structure. This ensures that the correction plate 12 always maintains a vertical posture when it moves with the movable plate 7. The two work together to form a regular and stable feeding paper conveying channel, which accurately limits the feeding paper in the conveying process from both sides, effectively preventing the feeding paper from shifting and causing misalignment with the cigarette, further ensuring the feeding quality and reducing quality defects caused by misalignment. In this invention, the two parallel guide rods 6 not only restrict the rotation of the movable plate 7, ensuring that the movable plate 7 moves smoothly only in the horizontal direction, thus improving the smoothness and accuracy of the movement of the movable plate 7 and the correction plate 12, but also achieve a fixed connection between the two guide rods 6 through the connecting block 3. This not only ensures the stability of the relative position of the guide rods 6 themselves, but also enhances the rigidity of the overall structure of the device, avoids component deformation after long-term operation, extends the service life of the device, and ensures long-term stability of the correction accuracy. The fixed plate 2, connecting rod 16, buffer plate 15, spring 13, buffer pad 14, and limiting plate 4 configured in this invention ensure that the buffer plate 15 remains in close contact with the surface of the splice paper under the elastic force of the spring 13. The buffer pad 14 is made of flexible and wear-resistant material, which can avoid damage to the splice paper caused by hard contact and protect the integrity of the splice paper's appearance. At the same time, the spring 13 can adaptively extend and retract according to the force changes caused by tension fluctuations and path friction during high-speed conveying of the splice paper, flexibly adjusting the contact force of the buffer plate 15 with the splice paper, effectively suppressing the protrusion and bending of the middle area of ​​the splice paper, keeping the splice paper conveyed flat, reducing serious quality accidents such as uneven cutting, incomplete splicing, and paper edge folding caused by abnormal paper shape, reducing waste of splice paper auxiliary materials, and controlling production costs. The setting of the limiting plate 4 can limit the downward stroke of the connecting rod 16, preventing the connecting rod 16 from falling off the fixed plate 2 due to excessive force on the buffer plate 15, further improving the operational safety and stability of the buffer structure, and ensuring the continuous and stable operation of the device.

[0026] The present invention also provides a method for correcting the deviation of a cigarette machine, which is applied to the above-mentioned correction device for a cigarette machine, and the specific steps include: Step S1: Width Adjustment Stage First, loosen the bolt 9 on the handwheel 10 so that the end of the bolt 9 disengages from the positioning groove 11 on the mounting plate 1, releasing the lock on the lead screw 5. Then, the operator turns the handwheel 10, which drives the lead screw 5 to rotate around its own axis. Since the lead screw 5 has reverse threads on both sides, and the two movable plates 7 are threaded onto the reverse threads respectively, and the movable plates 7 are sleeved on the guide rod 6 and slide in cooperation with the correction roller 8, under the dual guiding and limiting action of the guide rod 6 and the correction roller 8, the two movable plates 7 move synchronously and symmetrically along the lead screw 5. That is, when the handwheel 10 is turned clockwise, the two movable plates 7 move closer to each other; when the handwheel 10 is turned counterclockwise, the two movable plates 7 move further apart, until a conveying channel that matches the width of the current paper is formed between the correction plates 12. At this point, stop turning the handwheel 10. Step S2: Position Locking Phase Tighten the bolt 9 on the handwheel 10 so that the end of the bolt 9 is precisely inserted into a positioning groove 11 on the mounting plate 1 that is aligned with the bolt 9 at this time. Since multiple positioning grooves 11 are equally spaced on the mounting plate 1, the operator can rotate the handwheel 10 to different angles according to actual needs, so that the bolt 9 corresponds to different positioning grooves 11, thereby achieving reliable locking after multi-level width adjustment. The position of the handwheel 10 is locked by the insertion and cooperation of the bolt 9 and the positioning groove 11, thereby fixing the lead screw 5 and preventing the lead screw 5 from rotating under the vibration of the cigarette machine, ensuring that the position of the movable plate 7 and the correction plate 12 remains stable, and the width of the paper feeding channel remains unchanged. Step S3: Paper feeding and correction stage The tipping paper is conveyed at high speed along the conveying channel formed by the correction plates 12. The correction plates 12 on both sides limit the tipping paper to prevent it from shifting to the left or right and avoid misalignment with the cigarette. At the same time, the buffer plate 15 is flexibly attached to the top surface of the tipping paper by the elastic force of the spring 13 through the buffer pad 14 at the bottom. The spring 13 can adaptively extend and retract according to the tension fluctuation and slight bulging state of the tipping paper during conveying, adjusting the attachment force of the buffer plate 15 to the tipping paper, keeping the tipping paper flat at all times, effectively suppressing the bulging and bending in the middle area of ​​the tipping paper, and ensuring that the tipping paper is conveyed flat. The limiting plate 4 at the top of the connecting rod 16 limits the downward stroke of the connecting rod 16, preventing the connecting rod 16 from falling off due to excessive force on the buffer plate 15, and ensuring the stable operation of the buffer structure. When it is necessary to change the tipping paper of different widths, the above width adjustment and position locking steps can be repeated. The operation is convenient, highly adaptable, and can continuously provide stable correction guarantee for cigarette production.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A correction device for a cigarette rolling machine, characterized in that: The device includes two symmetrically arranged mounting plates connected by a lead screw via bearings. The left and right sides of the lead screw have threads in opposite directions. One end of the lead screw passes through one of the mounting plates and is connected to a handwheel. Several positioning slots are evenly spaced around the through hole of the lead screw on the surface of one of the mounting plates. A bolt that can selectively insert into any of the positioning slots is threaded through the surface of the handwheel. Two movable plates are symmetrically threaded onto the surface of the lead screw. A correction plate is connected to the bottom of each movable plate, and the correction plate is connected to the mounting plate via a correction roller penetrating its surface. The alignment plate can slide left and right relative to the alignment roller. Soft ribs are fixedly attached to the inner surfaces of both alignment plates. Two guide rods are horizontally arranged symmetrically between the two mounting plates. A connecting block is fixedly connected between the two guide rods and is located between the two movable plates. A fixed plate is provided at the bottom of the connecting block. Several connecting rods are arranged through the surface of the fixed plate. A buffer plate is provided at the bottom of the connecting rods. A buffer pad is laid at the bottom of the buffer plate. Several shallow longitudinal grooves are formed on the bottom surface of the buffer pad. Springs are fitted onto the surface of the connecting rods, and the upper and lower ends of the springs are connected to the fixed plate and the buffer plate, respectively.

2. The correction device for a cigarette rolling machine according to claim 1, characterized in that: The mounting plates are arranged in parallel and opposite positions, and the bearings are embedded in the pre-set mounting holes of the mounting plates.

3. The correction device for a cigarette rolling machine according to claim 1, characterized in that: One end of the lead screw passes through one of the mounting plates and is fixedly connected to the handwheel, with the handwheel located on the outside of one of the mounting plates.

4. The correction device for a cigarette rolling machine according to claim 1, characterized in that: Two movable plates are arranged in parallel and opposite positions. The surfaces of the two movable plates are respectively provided with aligned movable through holes. The two movable plates can be adapted to be connected to the reverse threads of the left and right parts of the lead screw through the movable through holes. The bottom ends of the two movable plates are fixedly connected to the correction plate, which is arranged vertically. The left and right ends of the correction roller are respectively fixed to the inner surfaces of the two mounting plates.

5. The correction device for a cigarette rolling machine according to claim 1, characterized in that: The guide rods are arranged in two horizontal parallel positions, with the axis of the guide rods parallel to the axis of the lead screw. The two guide rods are located on the left and right sides below the lead screw, respectively, and the connecting block is located in the middle between the two movable plates.

6. The correction device for a cigarette rolling machine according to claim 1, characterized in that: The fixed plate is arranged horizontally, and the connecting rod is arranged vertically from the upper end face of the fixed plate to the lower end face of the fixed plate. The connecting rod is slidably engaged with the fixed plate and can move up and down relative to the fixed plate. The buffer plate is parallel to the fixed plate, and the bottom end of the connecting rod is fixedly connected to the upper end face of the buffer plate. The buffer pad is made of flexible wear-resistant material, and the bottom surface of the buffer pad has multiple shallow longitudinal grooves along the feeding direction of the paper. The upper and lower ends of the spring are fixedly connected to the bottom surface of the fixed plate and the top surface of the buffer plate, respectively. A limit plate is fixedly installed at the top end of the connecting rod.

7. The correction device for a cigarette rolling machine according to claim 1, characterized in that: The positioning grooves are evenly distributed around the through hole of one of the mounting plates, with the lead screw passing through it. The bolts are threaded with the handwheel, and the ends of the bolts can be inserted into or pulled out of the corresponding positioning grooves by turning the bolts.

8. A method for correcting the alignment of a cigarette rolling machine, wherein the method is applied to the alignment device of a cigarette rolling machine as described in any one of claims 1 to 7, characterized in that: The specific steps include: Step S1: Width Adjustment Stage First, loosen the bolt on the handwheel so that the bolt end disengages from the positioning groove on the mounting plate, releasing the lock on the lead screw. Then, the operator turns the handwheel, causing the lead screw to rotate around its own axis. Since the lead screw has reverse threads on both sides, and the two movable plates are threaded onto the reverse threads respectively, and the movable plates are fitted onto the guide rod and slide in cooperation with the correction roller, under the dual guiding and limiting action of the guide rod and the correction roller, the two movable plates move synchronously and symmetrically along the lead screw. That is, when the handwheel is turned clockwise, the two movable plates move closer to each other; when the handwheel is turned counterclockwise, the two movable plates move further apart, until a conveying channel that matches the width of the current paper being fed is formed between the correction plates. At this point, stop turning the handwheel. Step S2: Position Locking Phase Tighten the bolt on the handwheel so that the end of the bolt is precisely inserted into a positioning slot on the mounting plate that is aligned with the bolt. Since there are multiple positioning slots evenly spaced on the mounting plate, the operator can rotate the handwheel to different angles as needed to make the bolt correspond to different positioning slots, thereby achieving reliable locking after multi-level width adjustment. The handwheel position is locked by the insertion and cooperation of the bolt and the positioning slot, thereby fixing the lead screw and preventing the lead screw from rotating under the vibration of the cigarette machine, ensuring that the position of the movable plate and the correction plate remains stable, and the width of the paper feeding channel remains unchanged. Step S3: Paper feeding and correction stage The tipping paper is conveyed at high speed along the conveying channel formed by the correction plates. The correction plates on both sides limit the tipping paper to prevent it from shifting to the left or right and avoid misalignment with the cigarette. At the same time, the buffer plate, under the elastic force of the spring, flexibly adheres to the top surface of the tipping paper through the buffer pad at the bottom. The spring can adaptively extend and retract according to the tension fluctuations and slight bulges during the tipping paper's conveying, adjusting the contact force of the buffer plate with the tipping paper to always keep the tipping paper flat. This effectively suppresses bulging and bending in the middle area of ​​the tipping paper, ensuring that the tipping paper is conveyed smoothly. The limiting plate at the top of the connecting rod restricts the downward stroke of the connecting rod, preventing the connecting rod from falling off due to excessive force on the buffer plate, ensuring the stable operation of the buffer structure. When it is necessary to change the tipping paper of different widths, the above width adjustment and position locking steps can be repeated. The operation is convenient, highly adaptable, and can continuously provide stable correction guarantee for cigarette production.

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