A device and method for correcting the folding of transparent paper in small cigarette packs

Abstract

This invention discloses a folding and correction device and method for transparent paper in small cigarette packs, belonging to the technical field of correction devices. It includes: a fixed bracket, which can be installed on a cover; an adjusting bracket, which is hinged to one side of the fixed bracket via a horizontal damping pivot, thereby achieving damped positioning of the swing and spatial posture; a correction baffle, which is mounted on the side wall of the adjusting bracket away from the fixed bracket, with its surface perpendicular to the horizontal damping pivot; the surface of the correction baffle is arranged parallel to the axial direction of the upper pressure roller and located outside the upper pressure roller, and the lower end of the correction baffle is horizontally aligned with the upper pressure roller; and an adjusting lever, one end of which is connected to the adjusting bracket, used to drive the adjusting bracket to rotate and cause the correction baffle to swing, thereby enabling the lower end of the correction baffle to rub against the side of the transparent paper surface to be corrected in the width direction for correction. This invention can effectively avoid misalignment of the pull seam of the transparent paper in small packs, reduce the number of equipment maintenance operations, and improve equipment operating efficiency.

Description

Technical Field

[0001] This invention relates to the field of correction device technology, and in particular to a correction device and method for folding transparent paper in a small cigarette pack. Background Technology

[0002] The ZB416 unit consists of three models: the YB411 small box packaging machine, the YB511 outer transparent paper packaging machine, and the YB611 rigid strip and outer transparent paper packaging machine. The YB511 packaging machine is used to wrap the rigid small cigarette packs produced upstream with outer transparent paper with pull straps, and then transport the cigarette packs to the next process.

[0003] The main function of the transparent paper conveying device for small boxes on the YB511 packaging machine is to transport the transparent paper to the correct workstation via the paper feeding channel. Then, under the action of the cigarette pack pusher, the cigarette pack and transparent paper enter the forming wheel together, completing the transparent paper wrapping process. However, the transparent paper can become misaligned during the conveying path due to factors such as equipment vibration, adjustments and maintenance of other related positions, material tension fluctuations, and the combined conveying of air blowing and negative pressure adsorption. This can lead to misalignment of the pull tabs (misalignment of the pull tabs on the transparent paper of the small cigarette pack during production). When the detected deviation of the transparent paper exceeds a certain standard, an alarm will sound and the machine will stop. This not only interferes with the normal operation of the equipment and reduces production efficiency, but may also cause a series of serious quality problems such as uneven or loose pull tabs on the transparent paper of the cigarette packs. Once such defective products enter the finished product line, a large amount of manpower and resources must be invested in unpacking and processing, and there is also a potential risk of market feedback. Therefore, during routine equipment maintenance, operators are required to clean and maintain the paper feeding channel daily to ensure the surface is clean, smooth, and free of talcum powder (the negative pressure air path is easily blocked by talcum powder and other debris, causing obstruction of the transparent paper feeding). The filter tube of the negative pressure conveyor belt for transparent paper needs to be cleaned regularly to avoid delays in production and potential product quality issues. In addition, due to the original design of the equipment, after the small boxes of transparent paper are cut by the conveyor rollers, the paper feeding channel is jointly conveyed by the positive pressure blower and the negative pressure suction belt. After the small boxes of cigarette packs and the transparent paper are combined, they are conveyed into the next process by the upper and lower guide rollers. Because the YB511 packaging machine has a compact structure, the adjustment is relatively cumbersome, the space is limited and it is not easy to operate. Adjusting the guide rail is extremely inconvenient and time-consuming, and the effect after adjustment is not ideal, which can easily lead to new quality problems.

[0004] Therefore, how to provide a device and method for correcting the folding of the transparent paper in small cigarette packs, which can effectively prevent misalignment of the pull lines of the transparent paper, reduce the number of equipment quality maintenance, improve equipment operating efficiency, reduce the workload of operators and maintenance personnel, and improve the online quality of products, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention proposes a folding and correction device and method for the transparent paper of small cigarette packs, aiming to solve at least one of the above-mentioned technical problems. The present invention improves and optimizes the conveying process of the transparent paper for small cigarette packs on the YB511 model outer transparent paper packaging machine. It intervenes in advance when the transparent paper meets the small box, causing the transparent paper to shift during conveying, thereby changing the conveying position of the transparent paper and aligning the pull lines of the small cigarette pack transparent paper. This reduces the number of equipment maintenance operations, greatly improves equipment operating efficiency, reduces the workload of operators and maintenance personnel, and improves the online product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a folding and correction device for the transparent paper of a small cigarette pack. A cover is provided on the outer periphery of the forming wheel of the transparent paper packaging machine, and an upper pressure roller capable of horizontally corresponding to the forming groove of the forming wheel is installed on the cover; comprising: A mounting bracket, which can be installed on the cover; The adjustment bracket can be hinged to one side of the fixed bracket via a horizontal damping pivot, thereby enabling damped positioning of the gyratory and spatial attitude. A correction baffle is installed on the side wall of the adjusting bracket away from the fixed bracket and its plate surface is perpendicular to the horizontal damping shaft; the plate surface of the correction baffle can be arranged parallel to the axial direction of the upper pressure roller and located outside the upper pressure roller, and the lower end of the correction baffle can be horizontally corresponding to the upper pressure roller. An adjustment lever is provided, one end of which is connected to the adjustment bracket. The adjustment bracket is used to drive the adjustment bracket to rotate and cause the correction baffle to twist and swing, thereby enabling the lower end of the correction baffle to rub against the side of the transparent paper surface to be corrected in the width direction for correction.

[0008] This invention discloses a folding and correction device for transparent paper in small cigarette packs. In use, the entire device can be installed on the cover of a YB511 type transparent paper packaging machine via a fixed bracket. After installation, the vertically installed correction baffle is positioned between the upper pressure roller and the transparent paper, with its surface approximately parallel to the vertically conveyed transparent paper, meeting the assembly requirements in confined spaces. Since the lower end of the correction baffle is horizontally aligned with the upper pressure roller, under normal, unbiased conveying conditions, both ends of the correction baffle corresponding to the width of the transparent paper can simultaneously contact the conveying transparent paper without correction. Adjusting the correction baffle to rotate around a horizontal damping shaft allows the two ends corresponding to the width of the transparent paper to swing and rise / fall. The horizontal damping shaft stabilizes the spatial posture of the correction baffle under damping force. Adjusting the lever drives the adjusting bracket to rotate, causing the correction baffle to sway, which helps overcome the damping force of the horizontal damping shaft for easy adjustment. In the event of a skewed conveyor belt, a rotating and oscillating adjustment baffle is used to press its lower end against one end of the conveyor belt in the width direction. This allows for differentiated friction adjustment at both ends of the conveyor belt in the width direction, thus intervening in the movement trajectory of the conveyor belt in advance. This ensures that the conveyor belt maintains the correct relative position and posture to the cigarette pack before entering the subsequent packaging process. This reduces the problem of skewed or misaligned conveyor belt caused by positional deviation, effectively lowers the probability of misaligned threads on the conveyor belt, and improves the overall precision and stability of the small cigarette pack conveyor belt packaging. It also reduces product quality defects and equipment downtime caused by misaligned threads.

[0009] As a further improvement to the above technical solution, the horizontal length of the correction baffle is not less than the width of the transparent paper.

[0010] As a further improvement to the above technical solution, the axial direction of the upper pressure roller is arranged parallel to the axial direction of the forming wheel, and the lower end of the correction baffle is higher than the lower end of the outer circumference of the upper pressure roller.

[0011] As a further improvement to the above technical solution, the fixed bracket is a strip-shaped fixed plate with a connecting block fixed at the bottom of its middle section along its length; bolt through holes are opened on the top surface of both ends of the fixed bracket along its length; the fixed bracket can be arranged directly above the upper pressure roller. The connecting block has a shaft hole along the direction perpendicular to the length of the fixed bracket and parallel to the bottom surface of the fixed bracket; one end of the horizontal damping shaft can pass through the shaft hole and be connected to the adjusting bracket; a damping adjustment slot communicating with the shaft hole is opened on the bottom end face of the connecting block; tightness adjustment bolts that can adjust the width of the damping adjustment slot are installed on the two side walls of the connecting block along the length of the fixed bracket, corresponding to the damping adjustment slot.

[0012] The beneficial effects of the above technical solution are: the fixed bracket can be installed on the cover through the bolt through hole and the fixing bolt and is parallel to the top of the pressure roller; the damping adjustment slot is connected to the shaft hole, so that the shaft hole becomes a side wall open shaft hole. The width of the damping adjustment slot can be adjusted by turning the tightness adjustment bolt, thereby adjusting the tightness of the horizontal damping shaft in the shaft hole and realizing the adjustment of the damping force of the horizontal damping shaft rotating in the shaft hole.

[0013] As a further improvement to the above technical solution, the correction baffle is rectangular and its length direction is set along the length direction of the fixed bracket; both sides of the lower end of the correction baffle have rounded chamfers in the length direction.

[0014] The beneficial effect of the above technical solution is that by designing the lower end of the correction baffle to have rounded chamfers on both sides along the length direction, the correction baffle can prevent friction and scratches on the surface of the transparent paper.

[0015] As a further improvement to the above technical solution, the adjusting lever is arranged along the length direction of the fixed bracket; the end of the adjusting lever away from the adjusting bracket extends to the outer side of the correction baffle along the length direction to form a manual adjustment operation end.

[0016] As a further improvement to the above technical solution, the connecting block has a through hole on one side wall along the length of the fixed bracket, corresponding to the damping adjustment slot; the connecting block has a threaded hole on the other side wall along the length of the fixed bracket, corresponding to the through hole; one end of the tension adjustment bolt can move through the through hole and be screwed into the threaded hole.

[0017] The beneficial effects of the above technical solution are: the through hole, threaded hole and tightness adjustment bolt are all set along the length of the fixed bracket, that is, along the axial direction parallel to the upper pressure roller, which makes it easy for the operator to reach into the narrow gap between the upper pressure roller and the transparent paper to tighten the tightness adjustment bolt, and thus facilitates the flexible adjustment of the damping force as needed.

[0018] Another aspect of the present invention provides a method for correcting the folding of transparent paper in small cigarette packs. Using the aforementioned device for correcting the folding of transparent paper in small cigarette packs, when the transparent paper in the conveying state deviates to one side in the width direction, a lever is adjusted to drive a correction baffle to twist and swing. This causes the lower end of the correction baffle corresponding to the deviated side of the transparent paper to move downwards and press against the width direction side of the transparent paper near the correction baffle. This applies a directional frictional force to the deviated side of the conveying contact surface of the transparent paper, thereby correcting the trajectory of the transparent paper and maintaining the correct relative position and posture of the cigarette pack and the corresponding transparent paper wrapping the cigarette pack.

[0019] The beneficial effects of the above technical solution are: This invention utilizes friction as the corrective force, rather than rigid mechanical restraint. When the transparent paper is skewed, the lower end of the baffle presses against the skewed side, increasing the frictional resistance on that side, and using the resistance difference between the two sides to automatically straighten the transparent paper. This "directional friction" method, compared to rigid pushing, has adaptive characteristics and can avoid the transparent paper being stretched, deformed, or broken due to mechanical impact.

[0020] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a device and method for folding and correcting the transparent paper of a small cigarette pack, which has the following advantages and beneficial effects.

[0021] 1. The device of this invention achieves dynamic correction of the transparent paper conveying trajectory through a mechanical combination of "lever drive + friction correction," which is convenient to adjust and highly accurate. By replacing rigid pushers with flexible friction, the lateral displacement of the transparent paper can be accurately corrected during high-speed operation, thereby ensuring the accuracy of the transparent paper folding and the flatness of the appearance, improving packaging quality and equipment operating efficiency.

[0022] 2. The device of the present invention has a simple structure and is easy to install on the YB511 model box outer transparent paper packaging machine at the intersection of the transparent paper and the small cigarette pack, utilizing the existing space of the equipment and the mounting screw holes.

[0023] 3. This invention solves the positional deviation problem during the transparent paper conveying process through an active intervention mechanism, ensuring precise alignment of the transparent paper thread. The core mechanism of the device lies in its ability to apply directional frictional force to the conveying contact surface of the transparent paper on the skewed side when the transparent paper becomes skewed due to factors such as airflow, negative pressure conveyor belt adsorption, material tension fluctuations, and other interference factors. This differentiated frictional force adjustment intervenes in the movement trajectory of the transparent paper, ensuring that the transparent paper maintains a relatively correct position relative to the cigarette pack before entering subsequent packaging processes. This reduces the problem of skewed transparent paper conveying caused by positional deviation from the source, effectively reducing the probability of thread misalignment failure, thereby improving the overall precision and stability of small box transparent paper packaging and reducing product quality defects and equipment downtime caused by thread misalignment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1An exploded view of the overall structure of a folding and correction device for transparent paper in a small cigarette pack according to the present invention.

[0026] Figure 2 A schematic diagram of the structure of a small cigarette pack transparent paper folding and correction device installed on a transparent paper packaging machine.

[0027] Figure 3 A schematic diagram of the structure of the horizontal damping rotating shaft of the transparent paper folding and correction device for a small cigarette pack of the present invention, when it is assembled on the connecting block of the fixed bracket.

[0028] Figure 4 A schematic diagram of the connecting block structure of a folding and straightening device for transparent paper in a small cigarette pack according to the present invention.

[0029] Figure 5 A schematic diagram of the correction baffle structure of a folding and correction device for transparent paper in a small cigarette pack according to the present invention.

[0030] In the diagram: 1. Fixed bracket; 11. Connecting block; 111. Shaft hole; 112. Damping adjustment slot; 113. Through hole; 114. Threaded hole; 12. Bolt through hole; 2. Adjusting bracket; 3. Correction baffle; 31. Fastening screw; 32. Rounded chamfer; 4. Adjusting lever; 41. Manual adjustment operating end; 5. Horizontal damping rotating shaft; 51. Shim; 6. Cover; 7. Upper pressure roller; 8. Transparent paper; 9. Tightness adjustment bolt; 100. Forming wheel; 101. Forming groove; 200. Pusher plate; 300. Tobacco pack conveyor belt. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] According to embodiments of the present invention, such as Figures 1 to 5 As shown, a folding and correction device for transparent paper in a small cigarette pack includes: a fixed bracket 1, an adjusting bracket 2, a correction baffle 3, and an adjusting lever 4; a cover 6 is provided on the outer periphery of the forming wheel of the transparent paper packaging machine, and an upper pressure roller 7 that can be horizontally aligned with the forming groove of the forming wheel is installed on the cover 6; the fixed bracket 1 can be installed on the cover 6; the adjusting bracket 2 can be hinged to one side of the fixed bracket 1 through a horizontal damping shaft 5, thereby achieving damped positioning of the swing and spatial posture; the correction baffle 3 is installed on the side wall of the adjusting bracket 2 away from the fixed bracket 1 and its plate surface is perpendicular to the horizontal damping shaft 5; the plate surface of the correction baffle 3 can be arranged parallel to the axial direction of the upper pressure roller 7 and located outside the upper pressure roller 7, and the lower end of the correction baffle 3 can be horizontally aligned with the upper pressure roller 7; one end of the adjusting lever 4 is connected to the adjusting bracket 2, which is used to drive the adjusting bracket 2 to rotate and drive the correction baffle 3 to swing, thereby enabling the lower end of the correction baffle 3 to rub against the side of the transparent paper 8 to be corrected in the width direction for correction.

[0036] In this embodiment, a small cigarette pack transparent paper folding and correction device can be installed on the cover 6 of the YB511 type box outer transparent paper packaging machine via a fixed bracket 1. After installation, the vertically installed correction baffle 3 is positioned between the upper pressure roller 7 and the transparent paper 8, with its surface roughly parallel to the vertically conveyed transparent paper, meeting the assembly requirements in a confined space. Since the lower end of the correction baffle 3 is horizontally aligned with the upper pressure roller 7, under normal conveying conditions without deviation, the two ends of the correction baffle 3 corresponding to the width direction of the transparent paper 8 can simultaneously contact the conveyed transparent paper 8 without correction. Adjusting the correction baffle 3 to rotate around the horizontal damping shaft 5 allows the two ends of the correction baffle 3 corresponding to the width direction of the transparent paper 8 to swing up and down. The horizontal damping shaft 5 can stabilize the spatial posture of the correction baffle 3 under the action of damping force. The adjustment lever 4 drives the adjustment bracket 2 to rotate and cause the correction baffle 3 to swing, which helps to overcome the damping force of the horizontal damping shaft 5 for easy adjustment. In the event of a skewed conveying of the transparent paper 8, the rotating and swinging mechanism adjusts the correction baffle 3, causing its lower end to press against one end of the transparent paper 8 in the width direction. This allows for differentiated friction adjustment at both ends of the transparent paper 8 in the width direction during conveying, thereby intervening in the movement trajectory of the transparent paper in advance. This ensures that the transparent paper 8 maintains the correct relative position and posture with the cigarette pack before entering the subsequent packaging process. This reduces the problem of skewed or misaligned conveying of the transparent paper due to positional deviation from the source, effectively reducing the probability of misaligned threads on the transparent paper 8. Consequently, it improves the overall precision and stability of the transparent paper packaging for small cigarette packs, and reduces product quality defects and equipment downtime caused by misaligned threads.

[0037] Specifically, the upper pressure roller 7 is horizontally aligned with the forming groove 101 of the forming wheel 100, and is used to fold and guide the transparent paper before wrapping the small cigarette packs. The cover 6 is an original component of the YB511 type box outer transparent paper packaging machine. The cigarette pusher plate 200 of the YB511 type box outer transparent paper packaging machine is used to combine the cigarette packs on the cigarette pack conveyor belt 300 with the conveyed and cut transparent paper 8 and push them into the next process.

[0038] In some embodiments, the horizontal length of the correction baffle 3 is not less than the width of the transparent paper 8.

[0039] In some embodiments, the upper pressure roller 7 is arranged horizontally, and the axial direction of the upper pressure roller 7 is parallel to the axial direction of the forming wheel of the outer transparent paper packaging machine. The lower end of the correction baffle 3 is higher than the lower end of the outer circumference of the upper pressure roller 7.

[0040] Specifically, the lower end of the correction baffle 3 corresponds to the middle of the upper pressure roller 7 in the height direction.

[0041] In some embodiments, the fixed bracket 1 is a strip-shaped fixed plate with a connecting block 11 fixed at the bottom of its middle section along its length; bolt through holes 12 are provided on the top surfaces of both ends of the fixed bracket 1 along its length; the fixed bracket 1 can be arranged directly above the upper pressure roller 7. A shaft hole 111 is provided on the connecting block 11 along the length direction of the fixed bracket 1 and parallel to the bottom surface of the fixed bracket 1; one end of the horizontal damping shaft 5 can pass through the shaft hole 111 and be connected to the adjusting bracket 2; a damping adjustment slot 112 communicating with the shaft hole 111 is provided on the bottom surface of the connecting block 11; tightness adjustment bolts 9, which can adjust the width of the damping adjustment slot 112, are installed on the two side walls of the connecting block 11 along the length direction of the fixed bracket 1.

[0042] The fixed bracket 1 can be installed on the cover 6 through the bolt through hole 12 and the fixing bolt, and is parallel to the top of the pressure roller 7. The damping adjustment slot 112 is connected to the shaft hole 111, so that the shaft hole 111 becomes a shaft hole with an open side wall. The width of the damping adjustment slot 112 can be adjusted by turning the tightness adjustment bolt 9, thereby adjusting the tightness of the horizontal damping shaft 5 in the shaft hole 111 and adjusting the damping force of the horizontal damping shaft 5 rotating in the shaft hole 111.

[0043] Specifically, the horizontal damping shaft 5 has an external thread at one end and a nut at the other end; one end of the horizontal damping shaft 5 is vertically and threadedly fastened to the side wall of the adjusting bracket 2 near the connecting block 11; the correction baffle 3 is fastened to the side wall of the adjusting bracket 2 away from the connecting block 11 by fastening screws 31. The other end of the horizontal damping shaft 5 can also be welded to the side wall of the adjusting bracket 2 near the connecting block 11.

[0044] In some embodiments, the correction baffle 3 is rectangular and its length direction is arranged along the length direction of the fixed bracket 1; both sides of the lower end of the correction baffle 3 have rounded chamfers 32 in the length direction.

[0045] By designing the lower end of the correction baffle 3 with rounded chamfers on both sides along its length, the correction baffle 3 can prevent friction and scratches on the surface of the transparent paper 8.

[0046] In some embodiments, the lower part of the correction baffle 3, when installed in place, is bent toward the transparent paper, and the upper part is bent away from the transparent paper; thereby ensuring that when the lower end of the correction baffle 3 presses against the surface of the transparent paper, the other parts of the correction baffle 3 are horizontally spaced apart from the transparent paper, without contacting or interfering with the conveying operation of the transparent paper.

[0047] In some embodiments, the adjusting lever 4 is arranged along the length of the fixed bracket 1; the end of the adjusting lever 4 away from the adjusting bracket 2 extends to the outer side of the correction baffle 3 along the length of the bracket to form a manual adjustment operation end 41.

[0048] Specifically, the adjusting bracket 2 is a strip plate with its length direction parallel to the length direction of the fixed bracket 1, and one end of the adjusting lever 4 is threaded to one end of the adjusting bracket 2 in the length direction.

[0049] In some embodiments, the connecting block 11 has a through hole 113 on one side wall of the fixed bracket 1 along the length direction of the fixed bracket 1 at the damping adjustment slot 112; the connecting block 11 has a threaded hole 114 on the other side wall of the fixed bracket 1 along the length direction of the fixed bracket 1 at the through hole 113; one end of the tightness adjusting bolt 9 can move through the through hole 113 and be screwed into the threaded hole 114.

[0050] The through hole 113, threaded hole 114 and tension adjustment bolt 9 are all set along the length of the fixed bracket 1, that is, along the axial direction parallel to the upper pressure roller 7, so that the operator can easily reach into the narrow gap between the upper pressure roller 7 and the transparent paper 8 to tighten the adjustment bolt 9, thereby facilitating flexible adjustment of the damping force as needed.

[0051] Another embodiment of the present invention provides a method for correcting the folding of transparent paper in a small cigarette pack, using a device for correcting the folding of transparent paper in a small cigarette pack. When the transparent paper 8 in the conveying state deviates to one side of the width direction of the transparent paper 8, the correction baffle 3 is driven to twist by adjusting the lever 4, so that the lower end of the correction baffle 3 corresponding to the deviated side of the transparent paper 8 moves downward and presses against the side of the transparent paper 8 near the width direction of the surface of the correction baffle 3, applying directional friction force to the deviated side of the conveying contact surface of the transparent paper 8, thereby correcting the movement trajectory of the transparent paper to maintain the correct relative position and posture of the cigarette pack and the corresponding transparent paper wrapping the cigarette pack.

[0052] This invention utilizes friction as the corrective force, rather than rigid mechanical restraint. When the transparent paper deviates, the lower end of the baffle presses against the deviated side, increasing the frictional resistance on that side. The difference in resistance between the two sides allows the transparent paper to automatically straighten. This "directional friction" method, compared to rigid pushing, has adaptive characteristics and can avoid the transparent paper from being stretched, deformed, or broken due to mechanical impact.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A folding and correction device for the transparent paper of a small cigarette pack, wherein a cover (6) is provided on the outer periphery of the forming wheel of the transparent paper packaging machine, and an upper pressure roller (7) capable of horizontally corresponding to the forming groove of the forming wheel is installed on the cover (6); characterized in that, include: A fixed bracket (1) is available for mounting on the cover (6); Adjustment bracket (2), which can be hinged to one side of the fixed bracket (1) via a horizontal damping pivot (5), thereby enabling damping positioning of the swing and spatial posture; The correction baffle (3) is installed on the side wall of the adjustment bracket (2) away from the fixed bracket (1) and its plate surface is perpendicular to the horizontal damping shaft (5); the plate surface of the correction baffle (3) can be arranged parallel to the axial direction of the upper pressure roller (7) and located outside the upper pressure roller (7), and the lower end of the correction baffle (3) can be horizontally corresponding to the upper pressure roller (7). Adjusting lever (4), one end of which is connected to the adjusting bracket (2), is used to drive the adjusting bracket (2) to rotate and drive the correction baffle (3) to twist and swing, so that the lower end of the correction baffle (3) can rub against the side of the transparent paper (8) to be corrected in the width direction for correction.

2. The device for folding and correcting the transparent paper of a small cigarette pack according to claim 1, characterized in that, The horizontal length of the correction baffle (3) is not less than the width of the transparent paper (8).

3. The device for folding and correcting the transparent paper of a small cigarette pack according to claim 1, characterized in that, The axial direction of the upper pressure roller (7) is parallel to the axial direction of the forming wheel, and the lower end of the correction baffle (3) is higher than the lower end of the outer circumference of the upper pressure roller (7).

4. The device for folding and correcting the transparent paper of a small cigarette pack according to claim 1, characterized in that, The fixed bracket (1) is a strip-shaped fixed plate with a connecting block (11) fixed at the bottom of the middle part of its length direction; bolt through holes (12) are opened on the top surface of both ends of the fixed bracket (1) in the length direction; the fixed bracket (1) can be arranged directly above the upper pressure roller (7); The connecting block (11) has a shaft hole (111) along the direction perpendicular to the length of the fixed bracket (1) and parallel to the bottom surface of the fixed bracket (1); one end of the horizontal damping shaft (5) can pass through the shaft hole (111) and be connected to the adjusting bracket (2); the bottom surface of the connecting block (11) has a damping adjustment slot (112) that communicates with the shaft hole (111); the connecting block (11) has a tightness adjustment bolt (9) on both sides of the connecting block (11) along the length of the fixed bracket (1) corresponding to the damping adjustment slot (112) to adjust the width of the damping adjustment slot (112).

5. The device for folding and correcting the transparent paper of a small cigarette pack according to claim 4, characterized in that, The correction baffle (3) is rectangular and its length direction is set along the length direction of the fixed bracket (1); both sides of the lower end of the correction baffle (3) have rounded chamfers.

6. The device for folding and correcting the transparent paper of a small cigarette pack according to claim 4, characterized in that, The adjusting lever (4) is arranged along the length direction of the fixed bracket (1); the end of the adjusting lever (4) away from the adjusting bracket (2) extends to the outer side of the correction baffle (3) in the length direction to form a manual adjustment operation end (41).

7. The device for folding and correcting the transparent paper of a small cigarette pack according to claim 4, characterized in that, The connecting block (11) has a through hole (113) on one side wall along the length of the fixed bracket (1) corresponding to the damping adjustment slot (112); the connecting block (11) has a threaded hole (114) on the other side wall along the length of the fixed bracket (1) corresponding to the through hole (113); one end of the tension adjusting bolt (9) can move through the through hole (113) and be screwed into the threaded hole (114).

8. A method for correcting the folding of transparent paper in a small cigarette pack, characterized in that, Using the small cigarette pack transparent paper folding and correction device according to any one of claims 1-7; when the transparent paper (8) in the conveying state is tilted to one side of the width direction of the transparent paper (8), the correction baffle (3) is driven to swing by adjusting the lever (4), so that the lower end of the correction baffle (3) corresponding to the tilted side of the transparent paper (8) moves downward and presses against the side of the transparent paper (8) near the width direction of the surface of the transparent paper (8), applying directional friction force to the tilted side of the conveying contact surface of the transparent paper (8), thereby forming a correction intervention on the movement trajectory of the transparent paper, so as to maintain the correct relative position and posture of the cigarette pack and the corresponding transparent paper wrapping the cigarette pack.

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