A multi-specification paper core feeding device for roll paper production
The multi-specification paper core feeding device, which uses a cylinder to drive the sliding of the sleeve shaft, solves the shortcomings of traditional devices in terms of specification adaptability and stability, and realizes stable and flexible feeding of paper cores in roll paper production, thereby improving production efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI BAISHIJIE PAPER CO LTD
- Filing Date
- 2025-09-17
- Publication Date
- 2026-07-24
Smart Images
Figure CN224547782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper roll processing, specifically a multi-specification paper core feeding device for paper roll production. Background Technology
[0002] In the paper roll production process, the paper core serves as the core carrier for paper roll formation, and its precise and stable feeding is a crucial step in ensuring the efficient operation of subsequent winding processes. Currently, most paper roll manufacturers use specialized feeding devices to transport and position the paper core.
[0003] As the market demand for diverse specifications of roll paper products continues to grow, the shortcomings of traditional paper core feeding devices in terms of multi-specification adaptability and operational stability are becoming increasingly apparent. Some feeding devices with specification adjustment functions require disassembly and replacement of the feeding plate or adjustment of multiple sets of connecting parts to adapt to different paper cores. This is not only cumbersome to operate, but also prone to a decrease in positioning accuracy due to component disassembly and assembly, which in turn leads to paper core conveying deviation. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a multi-specification paper core feeding device for roll paper production, so as to solve the technical problem of needing to disassemble or replace the feeding plate or adjust multiple sets of connecting parts to adapt to different paper cores.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-specification paper core feeding device for roll paper production, including a support frame, on which a feeding component, a power component, and a storage component are fixedly connected; The feeding assembly includes a first feeding plate, a rotating shaft, a second feeding plate, a sleeve shaft, and a cylinder. The first feeding plate is fixedly connected to the side wall of the rotating shaft, and the second feeding plate is fixedly connected to the side wall of the sleeve shaft. Both the first and second feeding plates have the same circular groove for placing the paper core. The inner walls of the two circular grooves are on the same plane. The rotating shaft is sleeved inside the sleeve shaft, and the rotating shaft and the sleeve shaft are slidably connected. The output end of the cylinder is rotatably connected to one end of the sleeve shaft. The rotating shaft is rotatably connected to the bracket. The sleeve shaft can both rotate with the bracket and slide with the bracket. The axes of the sleeve shaft and the rotating shaft are on the same straight line. The material storage assembly includes a feeding trough, which has a first through slot for a first feeding plate to pass through, and a plurality of second through slots for a second feeding plate to pass through.
[0006] By adopting the above technical solution, the circular grooves of the first feeding plate and the second feeding plate are on the same plane, so that the paper core can be parallel to the horizontal plane when it is in the circular groove, preventing the paper core from falling out of the circular groove during the feeding process. When it is necessary to change the paper core specification, the relative position of the first feeding plate and the second feeding plate can be adjusted by sliding the sleeve shaft driven by the cylinder, so that paper cores of different lengths can be stably placed in the circular groove without replacing the entire feeding component, which greatly reduces the downtime when changing specifications and improves the flexibility and efficiency of production.
[0007] Furthermore, the power assembly includes a pulley, which is fixedly connected to the side wall of the rotating shaft located outside the sleeve shaft.
[0008] By adopting the above technical solution, the belt drive has good buffering and vibration reduction properties, effectively absorbing the vibration generated by the external power source during operation. This prevents vibration from being transmitted to the rotating shaft and affecting the stable rotation of the feeding plate, ensuring that the first feeding plate remains stable during the receiving and conveying of the paper core, and preventing the paper core from falling out of the circular groove due to vibration. At the same time, the belt pulley is located at the part of the rotating shaft that extends out of the sleeve shaft, which will not interfere with the sliding fit between the rotating shaft and the sleeve shaft. This ensures that power can be stably transmitted to the rotating shaft to drive the first feeding plate to operate normally, without affecting the sliding adjustment function of the sleeve shaft.
[0009] Furthermore, a first key is fixedly connected to the side wall of the sleeve shaft on the rotating shaft, and a first keyway for cooperating with the first key is provided on the inner wall of the sleeve shaft.
[0010] By adopting the above technical solution, it is ensured that the rotating shaft can drive the sleeve shaft to rotate synchronously when it rotates, avoiding relative circumferential sliding between the two, thereby ensuring that the first feeding plate and the second feeding plate can rotate synchronously, so that the paper core in the circular groove can be conveyed to the designated position at the same time.
[0011] Furthermore, the sleeve shaft and the cylinder are rotatably connected by a connector, which includes a first end shaft and a second end shaft. The first end shaft is fixedly connected to the end of the sleeve shaft, and the second end shaft is fixedly connected to the output end of the cylinder. A first turntable is fixedly connected to the end of the first end shaft facing the second end shaft, and a second turntable symmetrical to the first turntable is fixedly connected to the end of the second end shaft facing the first end shaft. The cross-sections of the second turntable and the first turntable are T-shaped, and the end faces of the first turntable and the second turntable are in contact. A connecting cover for limiting the first turntable from moving away from the second turntable is rotatably connected to the outer wall of the first turntable and the second turntable.
[0012] By adopting the above technical solution, the connecting cover restricts the separation of the two. This structure can realize flexible rotation between the sleeve shaft and the cylinder output end, ensuring that the driving force of the cylinder can be stably transmitted to the sleeve shaft, ensuring the smoothness of the sleeve shaft sliding adjustment, while not affecting the rotation of the sleeve shaft around the axis.
[0013] Furthermore, the rotating shaft and the sleeve shaft are connected to the bracket via a shaft seat, and an end cap is provided near the end of the rotating shaft to limit the sliding of the rotating shaft on the shaft seat.
[0014] By adopting the above technical solution, the bearing seat can provide stable support for the rotating shaft and the sleeve shaft, reduce the shaking or displacement caused by uneven force during rotation and sliding, ensure that the rotating shaft and the sleeve shaft always remain coaxial, and the end cap set near the end of the rotating shaft near the bearing seat can effectively limit the axial sliding of the rotating shaft in the bearing seat.
[0015] Furthermore, the length of the first key is the same as the length of the rotating shaft sleeved inside the sleeve.
[0016] By adopting the above technical solution, the length of the first key is the same as the length of the rotating shaft sleeved in the sleeve shaft. This length matching can ensure that the first key always maintains a matching state with the first keyway during the entire process of the rotating shaft sliding in the sleeve shaft, and there will be no situation where the first key is disengaged from the first keyway due to the sliding of the rotating shaft, thereby ensuring that the torque transmission between the rotating shaft and the sleeve shaft is always reliable.
[0017] Furthermore, the feeding trough has an angle of 30° with the horizontal plane.
[0018] By adopting the above technical solution, the feeding trough has an angle of 30° with the horizontal plane. This inclined design can realize automatic feeding by utilizing the gravity of the paper core itself, without the need to set up an additional complex feeding drive mechanism.
[0019] In summary, the present invention has the following main advantages: 1. This utility model uses the cooperation of a cylinder, a sleeve shaft, and a rotating shaft to change the distance between the first feeding plate and the second feeding plate, thereby enabling feeding operations for paper cores of different lengths, satisfying the feeding of paper cores of multiple specifications. It can feed paper cores of different specifications without disassembly, making it convenient for operators to operate, and at the same time, it will not cause paper core conveying deviation due to frequent disassembly and assembly. 2. By setting up the feeding groove, the paper core can be gathered at the first and second through grooves, which facilitates the feeding of the first and second feeding plates and effectively improves the feeding efficiency of the paper core. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This utility model Figure 2 A cross-sectional schematic diagram of AA in the middle; Figure 4This utility model Figure 3 Schematic diagram of cross section of BB.
[0021] In the diagram: 1. Bracket; 2. First feeding plate; 3. Rotating shaft; 4. Second feeding plate; 5. Sleeve shaft; 6. Cylinder; 7. Feeding chute; 8. Circular groove; 9. First through groove; 10. Second through groove; 11. Pulley; 12. First key; 13. First keyway; 14. Connector; 15. First end shaft; 16. Second end shaft; 17. First turntable; 18. Second turntable; 19. Connecting cover; 20. Shaft seat; 21. End cover. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0023] In this example: A multi-specification paper core feeding device for roll paper production, such as Figure 1-4 As shown, it includes a support 1, on which a feeding assembly, a power assembly, and a storage assembly are fixedly connected; The device includes a support frame 1, on which a feeding assembly, a power assembly, and a storage assembly are fixedly connected. The support frame 1 is made of high-strength metal and has an overall frame structure. It is fixed to the bearing seat 20 of the feeding assembly, the mounting seat of the power assembly, and the feeding chute 7 of the storage assembly by bolts or welding, respectively, to ensure that the components do not have relative displacement during operation and to provide a stable support foundation for the entire device. The feeding assembly includes a first feeding plate 2, a rotating shaft 3, a second feeding plate 4, a sleeve shaft 5, and a cylinder 6. The first feeding plate 2 is fixedly connected to the side wall of the rotating shaft 3, and is tightly fixed to the rotating shaft 3 by a flat key or welding. The second feeding plate 4 is fixedly connected to the side wall of the sleeve shaft 5, and is tightly fixed to the sleeve shaft 5 by a flat key or welding. Both the first feeding plate 2 and the second feeding plate 4 have identical circular grooves 8 for placing the paper core. The diameter of the circular grooves 8 is slightly larger than the diameter of the paper core. The inner walls of the two circular grooves 8 are on the same plane to ensure that the paper core is parallel to the horizontal plane when it is in the circular groove 8. The rotating shaft 3 is sleeved inside the sleeve shaft 5, and the outer wall of the rotating shaft 3 and the inner wall of the sleeve shaft 5 are connected. The rotating shaft 3 and the sleeve shaft 5 are slidably connected. The sleeve shaft 5 can slide along the axial direction. The rotating shaft 3 is a solid metal shaft, and the sleeve shaft 5 is a hollow metal shaft. The fit between the two is precision machined to ensure smooth sliding without obvious shaking. The rotating shaft 3 is rotatably connected to the bracket 1. The sleeve shaft 5 can both rotate with the bracket 1 and slide with the bracket 1. The rotating shaft 3 is rotatably connected to the bracket 1 through a bearing seat 20, and the sleeve shaft 5 is rotatably connected to the bracket 1 through another bearing seat 20. The output end of the cylinder 6 is rotatably connected to one end of the sleeve shaft 5. The extension and retraction of the piston rod of the cylinder 6 drives the sleeve shaft 5 to move along the axial direction without affecting the rotation of the sleeve shaft 5. The axes of the sleeve shaft 5 and the rotating shaft 3 are on the same straight line. The material storage assembly includes a feeding trough 7, which is a U-shaped or V-shaped metal trough. The feeding trough 7 has a first through-slot 9 for the passage of the first feeding plate 2, and multiple second through-slots 10 for the passage of the second feeding plate 4. The size of the first through-slot 9 matches the shape of the first feeding plate 2, and its edges are rounded to prevent scratching during passage. The multiple second through-slots 10 are evenly distributed along the length of the feeding trough 7. The spacing between each second through-slot 10 is designed according to the paper core specifications and feeding frequency to ensure that the second feeding plate 4 can smoothly pass through and receive the paper core at different positions. See Figure 1 , Figure 2 The power assembly includes a pulley 11, which is fixedly connected to the side wall of the rotating shaft 3 located outside the sleeve shaft 5. The pulley 11 is made of cast iron or aluminum alloy, and its inner wall is fixed to the rotating shaft 3 by key connection or interference fit. The outer side of the pulley 11 is provided with an annular groove for installing a transmission belt. The size of the annular groove matches the belt model to ensure that the belt will not slip during transmission. The length of the part of the rotating shaft 3 extending out of the sleeve shaft 5 is designed according to the size of the pulley 11 and the installation space to ensure that the pulley 11 will not interfere with the sleeve shaft 5 or other parts of the bracket 1 after installation. See Figure 3 , Figure 4The rotating shaft 3 is fixedly connected to the side wall of the sleeve shaft 5 with a first key 12. The first key 12 is a rectangular flat key, which is fixed in the keyway of the rotating shaft 3 by interference fit or welding. The inner wall of the sleeve shaft 5 is provided with a first keyway 13 for cooperating with the first key 12. The width and depth of the first keyway 13 are precisely matched with the size of the first key 12. The fit clearance between the first key 12 and the first keyway 13 is controlled within a small range, which ensures that the two slide smoothly relative to each other and can effectively transmit torque, avoiding circumferential slippage. See Figure 1 , Figure 2 , Figure 3 The sleeve shaft 5 and the cylinder 6 are rotatably connected via a connector 14. The connector 14 includes a first end shaft 15, a connecting cover 19, and a second end shaft 16. The first end shaft 15 is fixedly connected to the end of the sleeve shaft 5 by a threaded connection or welding. The second end shaft 16 is fixedly connected to the output end of the cylinder 6 by a pin or threaded connection to the piston rod end of the cylinder 6. A first turntable 17 is fixedly connected to the end of the first end shaft 15 facing the second end shaft 16, and a second turntable 1, symmetrical to the first turntable 17, is fixedly connected to the end of the second end shaft 16 facing the first end shaft 15. 8. The cross-sections of the second turntable 18 and the first turntable 17 are T-shaped. The T-shaped structure of the first turntable 17 and the second turntable 18 includes a disc-shaped head and a cylindrical neck. The end faces of the first turntable 17 and the second turntable 18 are fitted together. The end faces of the head are precision ground to ensure a tight fit. A connecting cover 19 for limiting the first turntable 17 from moving away from the second turntable 18 is rotatably connected to the outer wall of the first turntable 17 and the second turntable 18. The connecting cover 19 is an annular structure with a groove on the inner wall that matches the head of the turntable. It is fitted onto the outside of the turntable by snap-fit or bolt connection, which can limit the axial separation of the turntable without affecting the relative rotation of the turntable around the axis. See Figure 1 , Figure 2 The rotating shaft 3 and the sleeve shaft 5 are connected to the bracket 1 through the bearing seat 20. The bearing seat 20 is a split or integral metal structure and is fixed to the preset mounting hole position of the bracket 1 by bolts. The rotating shaft 3 is provided with an end cover 21 near the end of the bearing seat 20 to restrict the sliding of the rotating shaft 3 in the bearing seat 20. The end cover 21 is a circular metal cover and is fixed to the end of the rotating shaft 3 by bolts. Its diameter is larger than the inner diameter of the bearing cavity of the bearing seat 20, which can prevent the rotating shaft 3 from sliding axially outward. At the same time, the inner side of the end cover 21 contacts the outer ring of the bearing and can also play an axial positioning role for the bearing. See Figure 2 The length of the first key 12 is the same as the length of the rotating shaft 3 sleeved in the sleeve 5. The length of the first key 12 is determined by accurately measuring the effective length of the rotating shaft 3 inserted into the sleeve 5, so as to ensure the stability of the fit between the rotating shaft 3 and the sleeve 5 throughout the entire sliding stroke. See Figure 1 The feeding trough 7 has a 30° angle with the horizontal plane. This inclined design can use the paper core's own gravity to achieve automatic feeding without the need for an additional complex feeding drive mechanism. The implementation principle of this embodiment is as follows: The pulley 11 of the power assembly drives the belt to rotate through an external motor. The pulley 11 drives the rotating shaft 3 to rotate through a keyed connection or interference fit. The rotating shaft 3, through the rectangular flat key 12 on the side wall, engages with the first keyway 13 on the inner wall of the sleeve shaft 5, synchronously driving the sleeve shaft 5 to rotate, thereby causing the first feeding plate 2 and the second feeding plate 4 to rotate synchronously. Because the feeding trough 7 has a 30° angle with the horizontal plane, the paper core automatically moves towards the feeding assembly along the trough under its own gravity. When the first feeding plate 2 rotates to the first through slot 9 of the feeding trough 7 and the second feeding plate 4 rotates to the corresponding second through slot 10, the paper core... The paper core will fall into the circular groove 8 on the same plane on the two feeding plates. When the paper core specification needs to be changed, the cylinder 6 is activated. The output end of the cylinder 6 drives the sleeve shaft 5 to slide axially through the connector 14, which consists of the first end shaft 15, the second end shaft 16, the first turntable 17 and the second turntable 18 and the annular connecting cover 19. The turntable of the connector 14 can rotate relative to each other to ensure that the cylinder 6 drives the sleeve shaft 5 to slide without affecting the synchronous rotation of the sleeve shaft 5 with the rotating shaft 3. The precision fit clearance between the sleeve shaft 5 and the rotating shaft 3 and the sliding bearing in the shaft seat 20 ensure that the sleeve shaft 5 slides smoothly without shaking. By adjusting the relative position of the two feeding plates, paper cores of different lengths can be adapted.
[0024] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A multi-specification paper core feeding device for roll paper production, characterized in that: Includes a support (1), on which a feeding assembly, a power assembly and a storage assembly are fixedly connected; The feeding assembly includes a first feeding plate (2), a rotating shaft (3), a second feeding plate (4), a sleeve shaft (5), and a cylinder (6). The first feeding plate (2) is fixedly connected to the side wall of the rotating shaft (3), and the second feeding plate (4) is fixedly connected to the side wall of the sleeve shaft (5). The first feeding plate (2) and the second feeding plate (4) are both provided with the same circular groove (8) for placing the paper core. The inner walls of the two circular grooves (8) are on the same plane. The rotating shaft (3) is sleeved in the sleeve shaft (5). The rotating shaft (3) and the sleeve shaft (5) are slidably connected. The output end of the cylinder (6) is rotatably connected to one end of the sleeve shaft (5). The rotating shaft (3) is rotatably connected to the bracket (1). The sleeve shaft (5) can both rotate with the bracket (1) and slide with the bracket (1). The axes of the sleeve shaft (5) and the rotating shaft (3) are on the same straight line. The material storage assembly includes a feeding trough (7), which has a first through slot (9) for the passage of the first feeding plate (2) and a plurality of second through slots (10) for the passage of the second feeding plate (4).
2. The multi-specification paper core feeding device for roll paper production according to claim 1, characterized in that: The power assembly includes a pulley (11) which is fixedly connected to the side wall of the rotating shaft (3) located outside the sleeve shaft (5).
3. The multi-specification paper core feeding device for roll paper production according to claim 1, characterized in that: The rotating shaft (3) is fixedly connected to the first key (12) on the side wall of the sleeve shaft (5), and the inner wall of the sleeve shaft (5) is provided with a first keyway (13) for cooperating with the first key (12).
4. The multi-specification paper core feeding device for roll paper production according to claim 1, characterized in that: The sleeve shaft (5) and the cylinder (6) are rotatably connected by a connector (14). The connector (14) includes a first end shaft (15) and a second end shaft (16). The first end shaft (15) is fixedly connected to the end of the sleeve shaft (5), and the second end shaft (16) is fixedly connected to the output end of the cylinder (6). A first turntable (17) is fixedly connected to the end of the first end shaft (15) facing the second end shaft (16), and a second turntable (18) symmetrical to the first turntable (17) is fixedly connected to the end of the second end shaft (16) facing the first end shaft (15). The cross-section of the second turntable (18) and the first turntable (17) is T-shaped. The end faces of the first turntable (17) and the second turntable (18) are in contact. A connecting cover (19) for limiting the first turntable (17) from moving away from the second turntable (18) is rotatably connected to the outer wall of the first turntable (17) and the second turntable (18).
5. The multi-specification paper core feeding device for roll paper production according to claim 1, characterized in that: The rotating shaft (3) and the sleeve shaft (5) are connected to the bracket (1) through the shaft seat (20). The rotating shaft (3) is provided with an end cap (21) near the end of the shaft seat (20) to limit the sliding of the rotating shaft (3) on the shaft seat (20).
6. The multi-specification paper core feeding device for roll paper production according to claim 3, characterized in that: The length of the first key (12) is the same as the length of the rotating shaft (3) sleeved inside the sleeve shaft (5).
7. The multi-specification paper core feeding device for roll paper production according to claim 1, characterized in that: The feeding trough (7) has an angle of 30° with the horizontal plane.