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Process and apparatus for building pneumatic tyres

A technology for pneumatic tires and equipment, applied in tires, applications, household appliances, etc., can solve the problems of equipment not working, unable to maintain conveyor belts, etc., and achieve the effect of preventing interference

Active Publication Date: 2012-08-22
PIRELLI TYRE SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] Finally, the Applicant has noticed that the device described in document EP 1033236 will not work if the material of which the rubber sheet is made is not of the type that can be adhered to the conveyor belt, since said rubber sheet Once cut, it will not remain on the belt in any way

Method used

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  • Process and apparatus for building pneumatic tyres
  • Process and apparatus for building pneumatic tyres
  • Process and apparatus for building pneumatic tyres

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Embodiment Construction

[0067] Referring to the drawings, a plant for the manufacture of tires is generally designated by the numeral 1, comprising a building plant 2 according to the invention.

[0068] Plant 1 is used to manufacture tires 3 (see Figure 5 ), the tire essentially comprises: at least one carcass ply 4, preferably internally coated with a layer of an air-impermeable elastomeric material or a so-called liner 5; two so-called "beads" ” 6, with their respective annular anchoring structures 7, where possible, the anchoring structures are connected to the elastomeric filler 7a and joined to the circumferential edge of the carcass ply 4; the belt structure 8, attached to the carcass along the radially outer position of the carcass 4; the tread strip 9, in the so-called crown region of the tire 3, which is laminated to the radially outer position of the belt structure 8; and the side walls 10, to which they are attached To laterally opposite positions on the carcass ply 4, the sidewalls are...

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Abstract

An apparatus for building pneumatic tyres comprises a forming support (16) and an assembling device (19) to assemble components of elastomeric material on the forming support (16). The assembling device (19) comprises a feeding unit (20) to deliver a continuous elongated element (21) of elastomeric material, a conveyor (33) having a moving surface (34) along a predetermined direction (X) and towards a proximal end (35) thereof close to the forming support (16), an application device (30) positioned at the proximal end (35). The continuous elongated element (21) is moved forward on the moving surface (34) as far as the proximal end (35) and the forming support is rotated to enable application of the continuous elongated element (21) in the form of coils wound up on the forming support (16)itself. A retaining device (39) co-operates with the conveyor (33) to brake the continuous elongated element (21) at the end of the application, while the forming support (16) goes on rotating, untilit causes stretching and severing of the continuous elongated element (21).

Description

technical field [0001] The invention relates to a method for building pneumatic tyres, and to an apparatus for building pneumatic tyres, operating according to said method. Background technique [0002] Pneumatic tires generally comprise a carcass structure comprising at least one carcass ply with end flaps engaging corresponding annular anchoring structures, each annular anchoring structure generally being composed of at least one substantially It is formed as a circumferential annular insert, to which at least one filler insert is attached, which tapers in a radial direction away from the axis of rotation. [0003] A belt structure is attached to the carcass structure at a radially outer position thereto, the belt structure comprising one or more belt layers arranged to overlap each other radially and to the carcass ply Above, the belt layer has reinforcing threads of textile or metallic nature, which are oriented crosswise and / or substantially parallel to the direction o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/16B29D30/60B29D30/30
CPCB29D30/16B29C47/0021B26D3/003B29C47/0057B29C47/0038B29C47/0066B29D30/60B29D30/30B29C2793/0027B29C48/08B29C48/09B29C48/001B29C48/0018B29C48/0022B29C48/151B29C48/16
Inventor M·马尔基尼C·阿穆里R·诺托G·L·博西奥G·洛普雷斯蒂
Owner PIRELLI TYRE SPA
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