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Method and apparatus for controlling the delivery of continuous elongated elements in the process of building tires for vehicle wheels

An elongated element, construction technology, applied in the field of conveyance and equipment for controlling continuous elongated elements in the processing of tires for constructing vehicle wheels, can solve problems such as undesired stretching, achieve elimination of elastic recovery, and simple structure Effect

Active Publication Date: 2018-02-02
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The applicant has also found that passing a continuous elongated element on idle rollers of a storage device creates an undesired stretch in the elongated element itself.

Method used

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  • Method and apparatus for controlling the delivery of continuous elongated elements in the process of building tires for vehicle wheels
  • Method and apparatus for controlling the delivery of continuous elongated elements in the process of building tires for vehicle wheels
  • Method and apparatus for controlling the delivery of continuous elongated elements in the process of building tires for vehicle wheels

Examples

Experimental program
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Embodiment Construction

[0109] refer to figure 1 , reference numeral 1 designates the entire plant for manufacturing tires 100 for vehicle wheels according to the invention.

[0110] exist Figure 6 A tire 100 obtained in said plant and according to the method and process of the invention is illustrated in and comprising at least one carcass structure comprising at least one carcass layer 101, said carcass layer 101 has respective opposite terminal edges which engage respective annular anchoring structures 102 , referred to as bead cores and which may be associated with a bead filler 104 . The area of ​​the tire comprising the bead core and the bead filler 104 forms a bead structure 103 intended for fixing the tire on a corresponding mounting rim not shown.

[0111] Each bead structure is associated with the carcass structure by turning back the opposite lateral edges of said at least one carcass layer 101 around an annular anchoring structure 102 in such a way as to form a so-called carcass wing 1...

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Abstract

In an apparatus and process for building tyres, the method for controlling the delivery of a continuous elongated element comprises: arranging the continuous elongated element (11) along a zigzag path defined by a plurality of rollers (19, 31), The continuous elongated element is partially wound on said plurality of rollers; such that the continuous elongated element (11) advances in the feed direction (F) along a zigzag path; The continuous elongate element is delivered proximally. The plurality of rollers (19, 31) are kept in position by causing the first rollers (19) to rotate in a direction according to the feed direction (F) by imparting rotation to the respective first shaft (18) on which the first rollers (19) are mounted. ) in the continuous elongated element downstream of the first roller (19) (ad) is less than or equal to the longitudinal tension (σu) upstream of the first roller (19).

Description

technical field [0001] The object of the invention is a method of controlling the delivery of an elongated element. In particular, the invention also relates to processes and devices for carrying out such methods. Background technique [0002] Tires for vehicle wheels generally comprise a carcass structure comprising at least one carcass ply having axially opposite end edges engaged with respective annular anchoring structures, said annular anchoring structures The structure is integrated into an area commonly referred to as the "bead". The carcass structure is associated with a belt structure comprising one or more belt layers superimposed radially with respect to each other and with respect to the carcass ply. In a radially outer position with respect to the belt structure is applied a tread band made of elastomeric material like the other semi-finished products constituting the tyre. Corresponding sidewalls made of elastomeric material are also applied in axially outer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/30B65H20/34
CPCB29D30/30B29D30/3028B65H20/34B65H2403/20B65H2408/2171B65H2408/2173B65H2801/93
Inventor G·L·博西奥M·比戈尼奥
Owner PIRELLI TYRE SPA