An adaptive winding device for kraft paper production
By designing an adaptive winding device, the problem of uneven clamping force during kraft paper winding was solved, and stable clamping of the pressure rollers as the paper roll radius changed was achieved, thus improving the winding quality of kraft paper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGGUAN ZHONGYING ELECTRONIC CHEMICAL CO LTD
- Filing Date
- 2026-04-13
- Publication Date
- 2026-06-05
AI Technical Summary
In existing kraft paper winding equipment, as the radius of the paper roll increases, the elastic components of the pressure roller cause uneven clamping force, resulting in paper deformation, indentation, wrinkling and damage, which affects the quality of the paper roll.
Design an adaptive winding device that uses a coaxial design of the paper roll, swing arm, and rotating disk, combined with the limiting of circular grooves, straight grooves, and strip grooves, and the elastic drive of the tension spring, so that as the radius of the paper roll increases, the swing arm adjusts the clamping force to keep the pressure stable and avoids excessive pressure on the paper.
This technology ensures that the pressing force of the pressure roller remains stable when the paper roll radius changes, preventing paper deformation and damage, improving the uniformity and compactness of the paper roll, and enhancing the finished quality of kraft paper.
Smart Images
Figure CN122144538A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of kraft paper production technology, and more specifically to an adaptive winding device for kraft paper production. Background Technology
[0002] In the industrial production process of kraft paper, after forming and drying, the kraft paper needs to be continuously wound up by a paper roll to form a regular paper roll to meet the needs of subsequent storage, transportation and processing. To avoid problems such as looseness, wrinkles and misalignment of the kraft paper during the winding process, existing winding equipment is generally equipped with a pressure roller. The pressure roller continuously presses against the kraft paper roll on the paper roll to provide pressure and ensure the tightness of the winding.
[0003] Existing pressure rollers typically employ springs or tension springs as elastic driving components, elastically pressing the pressure roller against the surface of the kraft paper roll. During winding, as the kraft paper continuously winds, the radius of the roll gradually increases, causing the pressure roller to shift. This, in turn, causes the deformation of the spring or tension spring to continuously increase with the increase in the roll radius. Due to the mechanical properties of elastic components, the spring force increases significantly with the increase in deformation, directly resulting in increasingly greater compressive force on the outer layer of the kraft paper roll.
[0004] The larger the winding radius of the kraft paper roll, the greater the pressure. The uneven stress on the inner and outer layers of paper can easily cause the outer kraft paper to be excessively squeezed, resulting in problems such as paper deformation, indentation, wrinkling, or even damage. At the same time, it will also affect the overall winding uniformity and tightness of the paper roll, reduce the quality of the finished kraft paper, and make it difficult to meet the production requirements of high-quality kraft paper. Summary of the Invention
[0005] The purpose of this invention is to address the aforementioned shortcomings in the prior art by providing an adaptive winding device for kraft paper production.
[0006] The objective of this invention is achieved through the following technical solution: an adaptive winding device for kraft paper production, comprising a base, a swing arm, and a paper roll rotatably mounted on the base; a central boss is provided on the outer side of the base; a rotating disk is rotatably mounted on the outer side of the base; the center of the paper roll, the center of the central boss, and the center of the rotating disk are coaxially arranged. The base is provided with a circular arc groove; the rotating disk is provided with a straight groove along the diameter direction; the swing arm is provided with a strip groove along the length direction; a support shaft is movably provided in the strip groove; the support shaft is movably provided in the straight groove; one end of the swing arm is movably provided in the circular arc groove; a paper pressure roller is rotatably provided at one end of the swing arm. The base is provided with an adjustment groove; an adjustment boss is fixedly provided on the outside of the base; the other end of the swing rod is movably provided in the adjustment groove; a tension spring is provided between the other end of the swing rod and the adjustment boss.
[0007] The present invention is further configured such that the distance between the end of the arc groove near the central boss and the end of the adjustment groove near the adjustment boss, the distance between the end of the arc groove away from the central boss and the end of the adjustment groove away from the adjustment boss, and the distance between the two ends of the swing rod are all the same.
[0008] The present invention is further configured such that the swing arm is located between the outer side of the base and the inner side of the rotating disk.
[0009] The present invention is further configured such that a limiting cover is provided at one end of the support shaft; the limiting cover is located on the outside of the rotating disk.
[0010] The present invention is further configured such that the base is provided with a clearance groove; the other end of the support shaft is movably disposed in the clearance groove.
[0011] The invention is further configured such that the other end of the swing arm is provided with an adjusting pin; the adjusting pin is movably disposed in the adjusting groove.
[0012] The present invention is further configured such that the base is provided with a plurality of arc grooves; the plurality of arc grooves are distributed at equal angles around the center of the central boss; the rotating disk is provided with a plurality of straight grooves; the plurality of straight grooves are distributed at equal angles around the center of the rotating disk.
[0013] The present invention is further configured such that a plurality of guide rollers are rotatably provided on the inner side of the base.
[0014] The present invention is further configured such that the adaptive winding device for kraft paper production also includes a push rod; one end of the push rod is connected to the bottom of the rotating disk; the other end of the push rod is rotatably provided with a tension shaft; the tension shaft is connected to a tension roller; the machine base is provided with a strip-shaped tension groove; the tension shaft is movably disposed in the strip-shaped tension groove.
[0015] The beneficial effects of this invention are as follows: By using the coaxial design of the paper roll, the swing arm, and the rotating disk, combined with the mutual limiting of the arc groove, the straight groove, and the strip groove, and the elastic drive of the tension spring, this invention enables the fulcrum of the swing arm to move synchronously along the strip groove when the pressure roller moves as the radius of the paper roll increases, thus achieving dynamic adjustment of the swing arm's lever arm. Even if the tension spring's tension increases due to increased deformation, the increase in tension will be offset by the reverse change in the lever arm, keeping the pressure applied by the pressure roller on the kraft paper roll stable. This avoids the problem of excessive pressure on the outer layer of the kraft paper roll and prevents defects such as deformation, indentation, wrinkling, and damage to the kraft paper. Attached Figure Description
[0016] The invention will be further illustrated with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the invention. For those skilled in the art, other drawings can be obtained based on the following drawings without any creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention after the base is hidden; Figure 3 This is a schematic diagram of the structure of the present invention after the rotating disk is hidden when the radius of the kraft paper roll is small; Figure 4 This is a schematic diagram of the structure of the present invention where the rotating disk is hidden when the radius of the kraft paper roll is large; Figure 5 This is a schematic diagram of the rotating disk of the present invention after perspective view; The components are: 1. Base; 11. Center boss; 12. Arc groove; 13. Clearance groove; 21. Paper roll; 22. Paper pressure roll; 23. Guide roller; 3. Rotary disk; 31. Straight groove; 4. Swing rod; 41. Strip groove; 42. Adjusting pin; 5. Support shaft; 51. Limit cover; 61. Adjustment groove; 62. Adjustment boss; 63. Tension spring; 71. Push rod; 72. Tension shaft; 73. Tension roller; 74. Strip tension groove. Detailed Implementation
[0018] The present invention will be further described in conjunction with the following embodiments.
[0019] Depend on Figures 1 to 5 As can be seen, the adaptive winding device for kraft paper production described in this embodiment includes a base 1, a swing arm 4, and a paper roll 21 rotatably mounted on the base 1; a central boss 11 is provided on the outer side of the base 1; a rotating disk 3 is rotatably mounted on the outer side of the base 1; the center of the paper roll 21, the center of the central boss 11, and the center of the rotating disk 3 are coaxially arranged. The base 1 is provided with a circular arc groove 12; the rotating disk 3 is provided with a straight groove 31 along the diameter direction; the swing rod 4 is provided with a strip groove 41 along the length direction; the strip groove 41 is movably provided with a support shaft 5; the support shaft 5 is movably provided in the straight groove 31; one end of the swing rod 4 is movably provided in the circular arc groove 12; one end of the swing rod 4 is rotatably provided with a paper pressure roller 22. The base 1 is provided with an adjustment groove 61; an adjustment boss 62 is fixedly provided on the outer side of the base 1; the other end of the swing rod 4 is movably provided in the adjustment groove 61; a tension spring 63 is provided between the other end of the swing rod 4 and the adjustment boss 62.
[0020] Specifically, in the adaptive winding device for kraft paper production described in this embodiment, the kraft paper is gradually wound onto the paper roll 21 during use. When the paper roll 21 is not winding kraft paper, under the action of the tension spring 63, the other end of the swing rod 4 is located at the end of the adjusting groove 61 near the adjusting boss 62, and the deformation of the tension spring 63 is minimal. Under the limit of the straight groove 31, the support shaft 5 moves to the end of the strip groove 41 away from the tension spring 63. The support shaft 5 serves as the fulcrum of the swing rod 4, causing one end of the swing rod 4 to move to the end of the arc groove 12 near the central boss 11, and the pressure roller 22 abuts against the paper roll 21.
[0021] As the kraft paper gradually winds onto the roll 21, the radius of the kraft paper roll gradually increases, thereby pushing the pressure roll 22 to move. This causes one end of the swing arm 4 to move along the arc groove 12 away from the central boss 11. Under the limitation of the straight groove 31, the support shaft 5 moves towards the end of the strip groove 41 closer to the tension spring 63. At the same time, the other end of the swing arm 4 moves towards the end of the adjusting groove 61 away from the adjusting boss 62, thereby increasing the tension of the tension spring 63. During this process, although the tension of the tension spring 63 increases, the support shaft 5 acts as the fulcrum of the swing arm 4, and this fulcrum moves towards the end of the strip groove 41 closer to the tension spring 63. That is, the distance between the other end of the swing arm 4 and the support shaft 5 gradually decreases, while the distance between one end of the swing arm 4 and the support shaft 5 gradually increases. As a result, the pressure applied to the kraft paper roll by the pressure roll 22 at one end of the swing arm 4 will decrease accordingly.
[0022] In this embodiment, an adaptive winding device for kraft paper production is described. The distances between the end of the arc groove 12 near the central boss 11 and the end of the adjusting groove 61 near the adjusting boss 62, the distances between the end of the arc groove 12 away from the central boss 11 and the end of the adjusting groove 61 away from the adjusting boss 62, and the distances between the two ends of the swing rod 4 are all the same. Through this configuration, the movement trajectories of the two ends of the swing rod 4 within the arc groove 12 and the adjusting groove 61 form a linked and adaptive geometric relationship. This ensures that when the swing rod 4 swings with changes in the paper roll radius, the displacement at both ends always precisely corresponds to the movement of the support shaft 5. This ensures the linearity and accuracy of the swing rod 4's lever arm adjustment, avoids lever arm adjustment failure or clamping force imbalance due to dimensional deviations, and guarantees the reliability and stability of the device's adaptive clamping force control.
[0023] This embodiment describes an adaptive winding device for kraft paper production, in which the swing arm 4 is located between the outer side of the base 1 and the inner side of the rotating disk 3. This arrangement precisely defines the movement space of the swing arm 4, effectively preventing interference between the swing arm 4 and other components during movement. It also allows for a tighter fit between the support shaft 5 and the linear groove 31 and strip groove 41, reducing gaps and wobbling during movement. This improves the synchronization and smoothness of the linkage between the support shaft 5, the swing arm 4, and the rotating disk 3, while simultaneously making the overall structure of the device more compact and significantly improving the space utilization of the equipment.
[0024] The adaptive winding device for kraft paper production described in this embodiment has a limiting cover 51 at one end of the support shaft 5; the limiting cover 51 is located on the outside of the rotating disk 3. The limiting cover 51 forms an axial limiting constraint on the support shaft 5, which can effectively prevent the support shaft 5 from falling off and axially shifting when it reciprocates in the straight groove 31 and the strip groove 41.
[0025] The adaptive winding device for kraft paper production described in this embodiment has a recessed groove 13 extending through the base 1; the other end of the support shaft 5 is movably disposed in the recessed groove 13. The recessed groove 13 provides dedicated movement space and guide limit for the other end of the support shaft 5, so that both ends of the support shaft 5 can be effectively constrained, avoiding skewing and jamming when the support shaft 5 moves along the straight groove 31.
[0026] The adaptive winding device for kraft paper production described in this embodiment has an adjusting pin 42 at the other end of the swing arm 4; the adjusting pin 42 is movably disposed in the adjusting groove 61. This configuration allows the swing arm 4 to swing more smoothly and respond more sensitively.
[0027] This embodiment describes an adaptive winding device for kraft paper production. The base 1 is provided with multiple arc grooves 12; these arc grooves 12 are equidistantly distributed around the center of the central boss 11. The rotating disk 3 is provided with multiple straight grooves 31; these straight grooves 31 are equidistantly distributed around the center of the rotating disk 3. This equidistant distribution of multiple sets of arc grooves 12 and straight grooves 31 allows for the installation of multiple sets of swing arms 4 and pressure rollers 22, achieving uniform multi-directional compression of the kraft paper roll. This ensures consistent compression force across all parts of the roll, preventing issues such as uneven winding or loose winding due to uneven force on one side, further improving the winding regularity of the paper roll. Simultaneously, the coordinated operation of multiple components effectively disperses the force on individual components, reducing the wear rate of individual components and extending the overall service life of the device.
[0028] This embodiment describes an adaptive winding device for kraft paper production, in which multiple guide rollers 23 are rotatably mounted on the inner side of the machine base 1. These guide rollers 23 guide, flatten, and correct the kraft paper in multiple directions before it enters the winding process, effectively preventing problems such as offset, wrinkles, and curling edges during transport. This ensures the kraft paper enters the winding roller 21 in a flat and centered state, guaranteeing winding quality from the transport stage. Simultaneously, the guide rollers 23 convert the direct sliding friction between the kraft paper and the machine base 1 into rolling friction, significantly reducing the probability of scratches on the paper surface and protecting the surface quality of the kraft paper.
[0029] This embodiment describes an adaptive winding device for kraft paper production. The adaptive winding device further includes a push rod 71; one end of the push rod 71 is connected to the bottom of the rotating disk 3; the other end of the push rod 71 is rotatably equipped with a tension shaft 72; the tension shaft 72 is connected to a tension roller 73; the machine base 1 has a through-type tension groove 74; the tension shaft 72 is movably disposed within the tension groove 74. With the above configuration, as the radius of the kraft paper roll gradually increases, the tension of the kraft paper roll gradually increases, causing the tension roller 73 to drive the tension shaft 72 to move along the tension groove 74 towards the rotating disk 3, thereby causing the rotating disk 3 to rotate. During the rotation of the rotating disk 3, the support shaft 5 is further driven to move, thereby further reducing the pressure applied to the kraft paper roll by the pressure roller 22.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.
Claims
1. An adaptive winding device for kraft paper production, characterized in that: It includes a base (1), a swing arm (4), and a paper roll (21) rotatably mounted on the base (1); a central boss (11) is provided on the outer side of the base (1); a rotating disk (3) is rotatably mounted on the outer side of the base (1); the center of the paper roll (21), the center of the central boss (11), and the center of the rotating disk (3) are coaxially arranged; The base (1) is provided with a circular arc groove (12); the rotating disk (3) is provided with a straight groove (31) along the diameter direction; the swing rod (4) is provided with a strip groove (41) along the length direction; the strip groove (41) is movably provided with a support shaft (5); the support shaft (5) is movably provided in the straight groove (31); one end of the swing rod (4) is movably provided in the circular arc groove (12); one end of the swing rod (4) is rotatably provided with a paper pressure roller (22); The base (1) is provided with an adjustment groove (61) through it; an adjustment boss (62) is fixedly provided on the outside of the base (1); the other end of the swing rod (4) is movably provided in the adjustment groove (61); a tension spring (63) is provided between the other end of the swing rod (4) and the adjustment boss (62).
2. The adaptive winding device for kraft paper production according to claim 1, characterized in that: The distance between the end of the arc groove (12) near the central boss (11) and the end of the adjustment groove (61) near the adjustment boss (62), the distance between the end of the arc groove (12) away from the central boss (11) and the end of the adjustment groove (61) away from the adjustment boss (62), and the distance between the two ends of the swing rod (4) are all the same.
3. The adaptive winding device for kraft paper production according to claim 1, characterized in that: The swing arm (4) is located between the outer side of the base (1) and the inner side of the rotating disk (3).
4. The adaptive winding device for kraft paper production according to claim 3, characterized in that: One end of the support shaft (5) is provided with a limiting cover (51); the limiting cover (51) is located on the outside of the rotating disk (3).
5. The adaptive winding device for kraft paper production according to claim 3, characterized in that: The base (1) is provided with a relief groove (13); the other end of the support shaft (5) is movably disposed in the relief groove (13).
6. The adaptive winding device for kraft paper production according to claim 1, characterized in that: The other end of the swing arm (4) is provided with an adjusting pin (42); the adjusting pin (42) is movably disposed in the adjusting groove (61).
7. The adaptive winding device for kraft paper production according to claim 1, characterized in that: The base (1) is provided with multiple arc grooves (12); the multiple arc grooves (12) are distributed at equal angles around the center of the central boss (11); the rotating disk (3) is provided with multiple straight grooves (31); the multiple straight grooves (31) are distributed at equal angles around the center of the rotating disk (3).
8. The adaptive winding device for kraft paper production according to claim 1, characterized in that: The inner side of the base (1) is provided with multiple guide rollers (23).
9. The adaptive winding device for kraft paper production according to claim 1, characterized in that: The adaptive winding device for kraft paper production also includes a push rod (71); one end of the push rod (71) is connected to the bottom of the rotating disk (3); the other end of the push rod (71) is rotatably provided with a tension shaft (72); the tension shaft (72) is connected to a tension roller (73); the machine base (1) is provided with a strip tension groove (74); the tension shaft (72) is movably disposed in the strip tension groove (74).