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Process and equipment for constructing additional components in vulcanized tires

A technology for vulcanizing tires and structures, applied in tires, applications, household appliances, etc., can solve problems such as damage and impermissibility

Active Publication Date: 2022-06-17
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, the measurement of the distance between the nozzle and the tire surface as described in EP3009260 may be compromised by the simultaneous laying of the self-sealing material
Furthermore, the system described in EP3009260 does not allow timely and extended adjustment of all those parameters that may affect tire uniformity

Method used

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  • Process and equipment for constructing additional components in vulcanized tires
  • Process and equipment for constructing additional components in vulcanized tires
  • Process and equipment for constructing additional components in vulcanized tires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0183] refer to figure 1 , the reference number 1 denotes a tire with certain features such as self-sealing or noise reduction. Such a tire 1 is obtained starting from a vulcanized tire 2 having an inner surface 2a and an outer surface 2b arranged around the axis of rotation of the tire itself.

[0184] According to a possible embodiment, the vulcanized tire 2 comprises a carcass structure 3 comprising at least one carcass ply 4 .

[0185] The carcass ply 4 comprises a plurality of textile or metallic reinforcing cords arranged parallel to each other and covered at least partially with a layer of elastomeric material.

[0186] The carcass ply 4 has respectively opposite end flaps which are joined to the respective bead cores 5 . Each bead core may possibly be associated with a filling insert 6 arranged in a radially outer position with respect to the bead core. The area defined by the end flaps of the carcass ply 4 folded around the bead core 5 and possibly the filler inser...

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PUM

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Abstract

A device (100) for building an additional part (12) in a vulcanized tire (2), comprising a gripping device (110), a scanning head (121) and a dispensing nozzle (122). After clamping the vulcanized tire (2) with the clamping device (110), the scanning head (12) performs a preliminary scan of the laying portion of the inner surface (2a) of the tire, based on which the control unit (140) generates a mathematical Model. Subsequently, the control unit (140) controls the laying process by adjusting at least one laying parameter according to a mathematical model of the laying section while the dispensing nozzle (122) conveys the continuous elongated element (E) on the laying section according to a helical trajectory.

Description

technical field [0001] The present invention relates to a process and apparatus for constructing additional components within a vulcanized tire. Background technique [0002] "Additional components" refers to components suitable for imparting certain functions to a tire, such as self-sealing components used to construct self-sealing tires or noise reduction composites. [0003] "Vulcanized tire" or more generally "tire" means a green tire that is subsequently subjected to a molding and curing process. [0004] The "outer surface" of the tire or part thereof refers to the surface that remains visible after the tire is attached to its own mounting rim, and the "inner surface" of the tire or part thereof refers to the surface that is no longer visible after said attachment. The inner and outer surfaces define the tire. [0005] The term "elastomeric material" is used to denote a composition comprising at least one elastomeric polymer and at least one reinforcing filler. Pref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/06B29D30/00
CPCB29D30/0061B29D30/0685B29D2030/0066B29D2030/0694
Inventor C·E·阿穆里C·德科尔C·普皮
Owner PIRELLI TYRE SPA