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Curved surface fitting drum design method and curved surface fitting drum

A design method and drum-fitting technology, applied in vehicle parts, transportation and packaging, reinforcement layers of pneumatic tires, etc., can solve problems such as uneven stress on tire crown components and inability to ensure consistent tension of 0° reinforcement plies.

Pending Publication Date: 2021-05-28
SHANDONG LINGLONG TIRE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for designing a curved surface fitting drum, which is used to solve the technical problems in the prior art that the tension of the 0° reinforcement ply cannot be guaranteed to be consistent, and the force on the tire crown assembly is uneven. The method includes:

Method used

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  • Curved surface fitting drum design method and curved surface fitting drum
  • Curved surface fitting drum design method and curved surface fitting drum
  • Curved surface fitting drum design method and curved surface fitting drum

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0034] As mentioned in the background, the traditional method works by placing tension on the 0° reinforcement ply, which does exist when on the laminating drum, but when unloaded from the tire assembly equipment these stresses are released and the released tire assembly This will cause the crown to collapse in the radial direction, thereby changing the relative displacement of the various components of the tire assembly, especially the added ply.

[0035] In order to solve the above proble...

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Abstract

The invention discloses a curved surface fitting drum design method and a curved surface fitting drum. The method comprises the following steps: determining a pre-stretching rate based on a preset stretching characteristic curve graph of a 0-degree reinforced cord fabric layer; determining the radius of the curved surface fitting drum based on the material thickness and the radius of a 0-degree reinforced cord fabric layer in the tire structure of the tire, wherein the material thickness is the material thickness between the 0-degree reinforced cord fabric layer and the curved surface fitting drum; generating the curve fitting drum on the basis of the radius of the curved surface fitting drum and the pre-stretching rate, so that the 0-degree reinforced cord fabric layer is located in a material stretching area of the preset stretching characteristic curve graph, the tension of the reinforced cord fabric layer is controlled through the curved surface fitting drum, and therefore the problem that a tire crown assembly is uneven in stress is solved.

Description

technical field [0001] The present application relates to the technical field of tires, and more specifically, to a design method of a curved surface bonding drum and a curved surface bonding drum. Background technique [0002] The so-called assembly forming the crown of the tire generally comprises a reinforcing ply at an angle to the circumferential direction, a 0° reinforcing ply wound circumferentially, and the crown at this assembly. The number of layers of the axially wound 0° reinforcing ply is one layer or more than one layer, or the area winding or the whole circumference winding. Laminating drums for the assembly of this component are usually designed as flat drums with a cylindrical axial profile. The diameter of the assembly can be adjusted by the expansion and contraction of the fit drum. [0003] Under the state of the art, by placing tension on the 0° reinforcement ply, the tension does exist when on the lamination drum, but these stresses are released when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/08B60C9/18
CPCB60C9/08B60C9/18B60C2009/0071B60C2009/1828
Inventor 王锋宋肖英刘颖李明李登超陈雪梅
Owner SHANDONG LINGLONG TIRE
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