Crown band tension adjustment device
By designing a crown strip tension adjustment device, the tension can be monitored and adjusted automatically in real time, solving the problem of tension fluctuation during the crown strip winding process and ensuring the production quality and dimensional stability of the tire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRIANGLE WEIHAI HUASHENG TIRE CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-02
AI Technical Summary
During the tire forming process, tension fluctuations in the crown strip lead to uneven winding, affecting the tire's outer edge dimensions and uniformity.
A crown strip tension adjustment device was designed, including components such as a frame, support plate, guide transmission wheel, tension measuring roller and tensioning roller. By monitoring and automatically adjusting the tension in real time, the stability of the crown strip winding process is ensured.
It achieves stable control of the crown strip tension, avoids material deviation and detachment, and improves tire production quality and dimensional consistency.
Smart Images

Figure CN224311293U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire production equipment, and more specifically to a crown belt tension adjustment device. Background Technology
[0002] As is well known, tires are composed of various rubber components. During the molding process, the crown strip, located between the tread and the belt layer, increases the tire's dimensional stability and prevents the belt layer from shifting or deforming at high speeds. During the crown strip winding process, varying tensions result in different binding forces on the crown strip, directly affecting the tire's outer dimensions and uniformity. Summary of the Invention
[0003] To overcome the shortcomings of the existing technology, this utility model provides a crown strip tension adjustment device to avoid tension fluctuations during the winding process.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a crown band tension adjustment device, comprising a frame, characterized in that a support plate is fixed on the front of the frame, and a crown band guide transmission wheel a and a crown band guide transmission wheel b are fixed on the support plate. A crown band tension adjustment rod is installed between the crown band guide transmission wheel a and the crown band guide transmission wheel b. A tension measuring roller is installed on the support plate behind the crown band guide transmission wheel a. A brush roller a and a crown band tensioning roller a are vertically fixed above the support plate, and a crown band tensioning roller b, a brush roller b, and a crown band auxiliary roller are installed in parallel. A crown band tensioning roller c, a crown band tensioning roller d, and a crown band tensioning roller are installed in parallel below the support plate. e. On the support plate behind the tension measuring roller, the crown strip tension roller f and the brush roller c are installed in parallel. On the upper side of the frame, the crown strip tension roller j and the brush roller e are installed in parallel with circumferential tangency. The h-shaped frame is connected to the frame via the curved arm storage rack. The curved arm storage rack is a two-link structure. The hinge points of the curved arm inner transfer roller a, the curved arm inner transfer roller b, and the curved arm inner transfer roller c are installed respectively. The brush roller d is installed in parallel above the curved arm inner transfer roller c. The brush roller d, the crown strip tension roller g, and the crown strip tension roller h are installed in parallel above the h-shaped frame. The crown strip tension roller k is installed below the h-shaped frame via the crown strip tension roller shaft. The crown strip tension roller i is installed in the middle of the h-shaped frame above the crown strip tension roller k.
[0005] The crown belt tensioning rollers a, b, c, d, e, f, g, h, i, j, and k have their roller surfaces higher on both sides than in the middle, forming an "I" shape.
[0006] The surfaces of the crown band guide transfer wheel a and crown band guide transfer wheel b are knurled.
[0007] The beneficial effects of this utility model are that it can monitor the tension in real time during the winding process of the crown strip and automatically adjust it according to different set tensions to ensure the stability of the tension, while also avoiding impurities and falling off of the material and ensuring product quality. Attached Figure Description
[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0009] Figure 1 This is the front view of this utility model.
[0010] Figure 2 This is the left view of this utility model.
[0011] Figure 3 This is a top view of the present invention.
[0012] Figure 4 This is a perspective view of the present invention.
[0013] In the diagram: 1. Crown belt tension adjusting rod; 2. Crown belt guide roller a; 3. Crown belt guide roller b; 4. Brush roller a; 5. Crown belt tension roller a; 6. Crown belt tension roller b; 7. Brush roller b; 8. Crown belt auxiliary roller; 9. Tension measuring roller; 10. Crown belt tension roller c; 11. Crown belt tension roller d; 12. Support plate; 13. Crown belt tension roller e; 14. Crown belt tension roller f; 15. Brush roller c 16. Frame; 17. Brush roller d; 18. Crown strip tension roller g; 19. Crown strip tension roller h; 20. Crown strip tension roller i; 21. Crank arm storage rack; 22. Crank arm inner transfer roller a; 23. Crank arm inner transfer roller b; 24. Crank arm inner transfer roller c; 25. Brush roller d; 26. Crown strip tension roller j; 27. Brush roller e; 28. Crown strip tension roller k; 29. Crown strip tension roller shaft; 30. H-type frame. Detailed Implementation
[0014] In the figure, this utility model includes a frame 16, with a support plate 12 fixed to the front of the frame 16. A crown band guide wheel a2 and a crown band guide wheel b3 are fixed to the support plate 12 via a rotating shaft. The surfaces of the crown band guide wheels a2 and b3 are knurled to prevent displacement of the crown band. A crown band tension adjusting rod 1 is installed between the crown band guide wheels a2 and b3. The crown band tension adjusting rod 1 can move up and down to adjust the tension to achieve the desired result. Tension is required. A tension measuring roller 9 is installed on the support plate 12 behind the crown band guide transfer wheel a2. A brush roller a4 and a crown band tensioning roller a5 are vertically fixed above the support plate 12, and a crown band tensioning roller b6, a brush roller b7, and a crown band auxiliary roller 8 are installed in parallel. A crown band tensioning roller c10, a crown band tensioning roller d11, and a crown band tensioning roller e13 are installed in parallel below the support plate 12. A crown band tensioning roller f14 and a brush roller c15 are installed in parallel on the support plate 12 behind the tension measuring roller 9. A crown belt tensioning roller j26 and a brush roller e27, tangent to each other, are mounted parallel to the upper side of the frame 16. The H-frame 30 is connected to the frame 16 via a curved arm storage rack 21. The curved arm storage rack 21 has a two-link structure, and its hinge points are respectively equipped with a curved arm inner transfer roller a22, a curved arm inner transfer roller b23, and a curved arm inner transfer roller c24. A brush roller d25 is mounted parallel to the upper side of the curved arm inner transfer roller c24. A brush roller d17, a crown belt tensioning roller g18, and a crown belt tensioning roller are mounted parallel to the upper side of the H-frame 30. Below the h19 and h-shaped frame 30, a crown belt tensioning roller k28 is installed via the crown belt tensioning roller shaft 29. Above the crown belt tensioning roller k28, a crown belt tensioning roller i20 is installed in the middle of the h-shaped frame 30. Material is transferred from inside the curved arm storage rack 21 through the curved arm internal transfer roller a22, curved arm internal transfer roller b23, and curved arm internal transfer roller c24. The h-shaped frame 30 moves along with the crown belt machine head. At this time, the tension of the internal crown belt changes when the curved arm extends or contracts, and the signal is transmitted back through the tension measuring roller 9 for adjustment.
[0015] The crown belt tension rollers a5, b6, c10, d11, e13, f14, g18, h19, i20, j26, and k28 have their roller surfaces raised on both sides to form an "I" shape, ensuring that the material does not deviate or fall off. Brush rollers a4, b7, c15, d25, and e27 are used to remove lint adhering to the surface of the material and ensure smooth material transfer.
[0016] In use, after setting the crown band wrapping parameters, the crown band passes above the crown band tensioning roller c10, exits below the crown band tensioning roller d11, is transferred to the crown band guide transfer wheel a2, passes below the crown band tension adjusting rod 1, is transferred to the crown band guide transfer wheel b3, passes below the crown band tensioning roller e13, exits above the tension measuring roller 9, is then transferred below the crown band tensioning roller f14, and finally above the crown band tensioning roller b6. The strip passes through the crown belt auxiliary roller 8 to the crown belt tensioning roller a5, then above the side crown belt tensioning roller j26, and reaches the curved arm storage rack 21. It passes above the curved arm inner transfer roller c24, then below the curved arm inner transfer roller b23, then above the curved arm inner transfer roller a22, then below the crown belt tensioning roller h19, and above the crown belt tensioning roller g18. After the crown belt tensioning roller i20, it passes below the crown belt tensioning roller k28 to transfer the crown belt to the production station.
Claims
1. A crown strap tension adjustment device, comprising a frame, characterized in that, A support plate is fixed to the front of the frame. On the support plate are two crown band guide rollers, a and b. A crown band tension adjusting rod is installed between the two rollers. A tension measuring roller is installed on the support plate behind the crown band guide roller a. A brush roller a and a crown band tensioning roller a are vertically fixed above the support plate, and a crown band tensioning roller b, a brush roller b, and a crown band auxiliary roller are installed in parallel above it. A crown band tensioning roller c, a crown band tensioning roller d, and a crown band tensioning roller e are installed in parallel below the support plate. A crown band tensioning roller is installed in parallel on the support plate behind the tension measuring roller. Tensioning roller f and brush roller c are installed parallel to each other on the upper side of the frame. A crown strip tensioning roller j and brush roller e are installed in parallel. The h-shaped frame is connected to the frame via a curved arm storage rack. The curved arm storage rack is a two-link structure. The hinge points of the curved arm inner transfer roller a, curved arm inner transfer roller b, and curved arm inner transfer roller c are installed respectively. A brush roller d is installed parallel above the curved arm inner transfer roller c. A brush roller d, crown strip tensioning roller g, and crown strip tensioning roller h are installed parallel above the h-shaped frame. A crown strip tensioning roller k is installed below the h-shaped frame via the crown strip tensioning roller shaft. A crown strip tensioning roller i is installed in the middle of the h-shaped frame above the crown strip tensioning roller k.
2. The crown band tension adjustment device according to claim 1, characterized in that... The crown belt tensioning rollers a, b, c, d, e, f, g, h, i, j, and k have their roller surfaces higher on both sides than in the middle, forming an "I" shape.
3. The crown band tension adjustment device according to claim 1, characterized in that... The surfaces of the crown band guide transfer wheel a and crown band guide transfer wheel b are knurled.