Insertion piece type tile inflatable shaft capable of guiding roll core
By designing an adjustable guide structure, the mismatch problem of insert-type tile air expansion shafts during core assembly was solved, achieving stable installation and guiding effect for cores with different inner diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州荣玖机械股份有限公司
- Filing Date
- 2025-07-29
- Publication Date
- 2026-05-19
AI Technical Summary
When assembling the core, the existing insert-type tile air expansion shaft has a fixed-size guide structure, which causes the core with a larger inner diameter to be misfitted, affecting the guiding effect.
An adjustable guide structure is designed, including a limiting disc, an adjusting turntable, a guide cone, a central rotating shaft, an anti-slip handle, a guide groove, and a slider. By adjusting the combination of these components, it can be adapted to cores with different inner diameters, thus achieving the adjustability of the guide structure.
It improves the assembly compatibility and guiding effect between the air shaft and the core, ensuring stable installation and use on cores with different inner diameters.
Smart Images

Figure CN224258016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air shaft technology, specifically to an insert-type air shaft for guideable core rolls. Background Technology
[0002] The insert-type tile air expansion shaft is a specially designed winding and unwinding shaft. After being inflated under high pressure, the surface can bulge out, and after deflating, the surface part quickly retracts. It is usually made of aluminum alloy tiles, which can expand and contract flexibly. It is equipped with a high-quality rubber inner liner and a fast inflation and deflation nozzle, which has a good sealing effect, long service life, and a detachable shaft head for easy maintenance. It is especially suitable for applications with high requirements for the roundness of paper tubes or for surface winding and unwinding, which can effectively improve work efficiency and product quality.
[0003] Currently, existing insert-type tile air shafts can assist in the rapid guidance of rolled cores when they need to be assembled, thanks to the chamfer structure reserved at the front end of the shaft. However, considering that the outer diameter of the chamfer is fixed, the fixed-size chamfer guide structure often has a size mismatch problem when assembling and installing rolled cores with larger inner diameters. This results in a reduction in the guiding effect when actually installing rolled cores. Therefore, to address the above problems, an insert-type tile air shaft that can guide rolled cores is proposed. Summary of the Invention
[0004] The purpose of this invention is to provide a guideable core insert-type tile air expansion shaft to solve the problem mentioned in the background art that the existing insert-type tile air expansion shaft may have misalignment when the core is assembled with the aid of a guide structure.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A guideable core insert-type air expansion shaft for roof tiles includes an air expansion shaft roller. A front shaft head is fixedly connected to the front end of the air expansion shaft roller. A limiting disc is fixedly connected to the front end of the front shaft head. A central rotating shaft is rotatably connected to the middle position of the front end face of the limiting disc. An adjusting turntable is fixedly connected to the outside of the central rotating shaft. A guide groove is formed at the edge of the front end face of the limiting disc. A first slider is slidably connected to the inner side of the guide groove. A guide cone is fixedly connected to the front end of the first slider. An adjusting groove is formed on the surface of the adjusting turntable. A second slider is slidably connected to the inner side of the adjusting groove. An anti-slip handle is fixedly connected to the front end of the central rotating shaft.
[0007] Preferably, the inner side of the air-expanding shaft roller is provided with an air bladder, and the outer surface of the air bladder is fitted with an outward pusher that is slidably connected to the air-expanding shaft roller. The outer end of the outward pusher is fixedly connected with an air-expanding shaft bearing. The number of outward pushers is the same as the number of air-expanding shaft bearings. The air-expanding shaft bearings are disposed on the outside of the air-expanding shaft roller.
[0008] Preferably, the rear end of the air expansion shaft roller is fixedly connected to a rear shaft head, the rear end of the rear shaft head is fixedly connected to a connecting shaft, and the top groove of the front shaft head is provided with an inflation / deflation nozzle that communicates with the airbag.
[0009] Preferably, the front end of the limiting disc is threaded with limiting bolts on both the left and right sides, and the rear end face of the round head of the limiting bolt is fitted with the front end face of the adjusting disc.
[0010] Preferably, the guide cone is arranged in a narrow front and wide rear structure, and the four guide cones are arranged in a circular array along the center point of the adjusting turntable. The guide cones and the second slider are fixedly connected together, and the guide cones are slidably connected together through the first slider, the guide groove and the limiting disk. The adjusting groove is curved, and the adjusting turntable is provided with a concave structure at the rear end of the guide cone.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] In this invention, the inclusion of a limiting disc, adjusting disc, guide cone, central shaft, anti-slip handle, guide groove, first slider, adjusting groove, and second slider facilitates the adjustment of the adjustable guide structure—comprising the limiting disc, adjusting disc, guide cone, central shaft, anti-slip handle, guide groove, first slider, adjusting groove, and second slider—before assembling the roll core. This adjustment, achieved through the connection between the front shaft head and the limiting disc, allows the guide structure to be adapted to the inner diameter of the roll core. This improves the adaptability and practicality of the air shaft for assembling roll cores and enhances its guiding effect during actual use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the guide groove of this utility model;
[0015] Figure 3 This is a schematic diagram of the rear end face structure of the guide cone block of this utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the air-expanding shaft roller of this utility model.
[0017] In the diagram: 1. Air-expanding shaft roller; 2. Front shaft head; 3. Limiting disc; 4. Adjusting turntable; 5. Guide cone block; 6. Central rotating shaft; 7. Anti-slip handle; 8. Guide groove; 9. First slider; 10. Adjusting groove; 11. Second slider; 12. Air-expanding shaft bearing; 13. Inflation / depression nozzle; 14. Rear shaft head; 15. Adapter shaft; 16. Outward pusher; 17. Airbag; 18. Limiting bolt. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 This utility model provides a technical solution:
[0020] A guideable core insert-type air expansion shaft for roof tiles includes an air expansion shaft roller 1. A front shaft head 2 is fixedly connected to the front end of the air expansion shaft roller 1. A limiting disc 3 is fixedly connected to the front end of the front shaft head 2. A central rotating shaft 6 is rotatably connected to the middle position of the front end face of the limiting disc 3. An adjusting turntable 4 is fixedly connected to the outside of the central rotating shaft 6. A guide groove 8 is provided at the edge position of the front end face of the limiting disc 3. A first slider 9 is slidably connected to the inner side of the guide groove 8. A guide cone 5 is fixedly connected to the front end of the first slider 9. An adjusting groove 10 is provided on the surface of the adjusting turntable 4. A second slider 11 is slidably connected to the inner side of the adjusting groove 10. An anti-slip handle 7 is fixedly connected to the front end of the central rotating shaft 6.
[0021] like Figure 1 and Figure 4 As shown, an air bladder 17 is provided on the inner side of the air shaft roller 1. An outward pusher 16 is attached to the outer surface of the air bladder 17 and slidably connected to the air shaft roller 1. An air shaft tile 12 is fixedly connected to the outer end of the outward pusher 16. The number of outward pushers 16 is the same as the number of air shaft tiles 12. The air shaft tiles 12 are located on the outside of the air shaft roller 1. When air is inflated into the air bladder 17 through the inflation / deflation nozzle 13, the air bladder 17 will expand and push the air shaft tiles 12 outward through the outward pusher 16, thereby facilitating the air shaft to fix the core. A rear shaft head 14 is fixedly connected to the rear end of the air shaft roller 1. A connecting shaft 15 is fixedly connected to the rear end of the rear shaft head 14. An inflation / deflation nozzle 13 connected to the air bladder 17 is provided in the top groove of the front shaft head 2. The connecting shaft 15 provided behind the rear shaft head 14 mainly serves to assist the air shaft in connecting to printing machinery.
[0022] like Figure 1 , Figure 2 and Figure 3 As shown, limiting bolts 18 are threadedly connected to both the left and right sides of the front end of the limiting disc 3. The rear end face of the round head of the limiting bolt 18 is fitted with the front end face of the adjusting disc 4. After the rotation adjustment of the guide structure is completed, the limiting bolts 18 can be screwed deeper into the limiting disc 3. When the rotation is in place, the limiting bolts 18 will press and limit the adjusting disc 4 to prevent it from rotating. The guide cone 5 is designed with a narrow front and wide rear structure. The four guide cones 5 are arranged in a circular array along the center point of the adjusting disc 4. The guide cones 5 are fixedly connected to the second slider 11. The guide cones 5 are slidably connected to the limiting disc 3 through the first slider 9, the guide groove 8, and the limiting disc 3. The adjusting groove 10 is designed with a curved shape. The adjusting disc 4 is set with a concave structure at the rear end of the guide cone 5. When multiple guide cones 5 are stretched outward synchronously, the connection and cooperation between the guide groove 8 and the first slider 9 can play a good guiding and limiting role for the guide cones 5.
[0023] Workflow: The air shaft of this utility model needs to be used in conjunction with printing machinery. Specifically, the adapter shaft 15 is fixed to the pre-reserved bracket on the printing machinery, so that the air shaft is installed on the printing machinery. After the fixed installation is completed, and the core needs to be assembled onto the air shaft, the adjustable guide structure composed of the limiting disc 3, adjusting disc 4, guide cone 5, central rotating shaft 6, anti-slip handle 7, guide groove 8, first slider 9, adjusting groove 10, and second slider 11 can be adjusted according to the inner diameter of the core. Specifically, under the connection of the limiting disc 3, the anti-slip handle 7 is gripped to rotate the central rotating shaft 6, so that the adjusting disc 4 rotates. The multiple second sliders 11, which are subjected to traction force, move along the inside of the adjusting groove 10. While achieving synchronous rotation, multiple second sliders 11 also pull multiple guide cones 5 outward synchronously, increasing the gap between the multiple guide cones 5 and adjusting the size of the guide structure. Subsequently, when the core is pushed onto the air shaft from front to back, the air shaft guides the core assembly through the guide assembly that forms a cone structure, enabling rapid assembly. Then, the air pump is connected through the air inlet 13, and the air pump is started to inflate the air bladder 17. As the air bladder 17 inflates, multiple pushers 16 are pushed out, causing multiple air shaft tiles 12 to unfold outward synchronously. Once the air shaft tiles 12 are tightly pressed against the inner surface of the core, the core assembly is complete, ready for subsequent operation with printing machinery.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sheet type tile air inflation shaft of a guideable winding core, comprising an air inflation shaft roller (1), characterized in that: The front end of the air-expanding roller (1) is fixedly connected to a front axle head (2), the front end of the front axle head (2) is fixedly connected to a limiting disc (3), the center rotating shaft (6) is rotatably connected to the middle position of the front end face of the limiting disc (3), the adjusting disc (4) is fixedly connected to the outside of the center rotating shaft (6), the edge of the front end face of the limiting disc (3) is provided with a guide groove (8), the inner side of the guide groove (8) is slidably connected to a first slider (9), the front end of the first slider (9) is fixedly connected to a guide cone (5), the surface of the adjusting disc (4) is provided with an adjusting groove (10), the inner side of the adjusting groove (10) is slidably connected to a second slider (11), and the front end of the center rotating shaft (6) is fixedly connected to an anti-slip handle (7).
2. A sheet insert tile air inflation shaft of a guideable winding core according to claim 1, characterized in that: An air bladder (17) is provided on the inner side of the air expansion shaft roller (1). An outward pusher (16) is attached to the outer surface of the air bladder (17) and is slidably connected to the air expansion shaft roller (1). An air expansion shaft tile (12) is fixedly connected to the outer end of the outward pusher (16). The number of outward pushers (16) is the same as the number of air expansion shaft tiles (12). The air expansion shaft tiles (12) are located on the outside of the air expansion shaft roller (1).
3. The insertable tile air inflation shaft of a guidable roll core according to claim 1, wherein: The rear end of the air expansion roller (1) is fixedly connected to a rear shaft head (14), and the rear end of the rear shaft head (14) is fixedly connected to a connecting shaft (15). The top groove of the front shaft head (2) is provided with an inflation / deflation nozzle (13) that is connected to the airbag (17).
4. The insertable tile air inflation shaft of a guidable roll core according to claim 1, wherein: The front end of the limiting disc (3) is threaded with limiting bolts (18) on both the left and right sides. The rear end face of the round head of the limiting bolt (18) is fitted with the front end face of the adjusting turntable (4).
5. The insertable tile air inflation shaft of a guidable roll core according to claim 1, wherein: The guide cone (5) is arranged in a narrow front and wide back structure. The four guide cones (5) are arranged in a ring array along the center point of the adjustment turntable (4). The guide cone (5) is fixedly connected to the second slider (11). The guide cone (5) is slidably connected to the first slider (9), the guide groove (8) and the limiting disk (3). The adjustment groove (10) is curved. The adjustment turntable (4) is set in a concave structure at the rear end of the guide cone (5).