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Facility and method for manufacturing tread-reinforcing breaker plies with a device for turning over bead flippers while flat

A technology to strengthen the ply and equipment, applied in the direction of transportation, packaging, tire, application, etc., can solve the problems of frequent maintenance, loss of precision, loss of raw materials, etc., and achieve the effect of saving maintenance operations, reducing production cycle time, and saving energy

Active Publication Date: 2020-12-18
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]However, there may be certain disadvantages to this equipment
[0010] In fact, every time the cutter is reconfigured to select a new cutting angle, trims are generated from the straight wire tape, which leads to a loss of raw material
[0011] Furthermore, on the one hand, the increased reconfiguration of cutters results in increased production of reinforced ply each time the orientation direction of the cut corner is changed according to the desired ply angle required cycle time and, on the other hand, cause wear and play in the cutter mechanism, thus losing accuracy over time and requiring more frequent maintenance
[0012]These disadvantages can be disadvantageous, especially when aiming to mass produce varying reinforcement plies

Method used

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  • Facility and method for manufacturing tread-reinforcing breaker plies with a device for turning over bead flippers while flat
  • Facility and method for manufacturing tread-reinforcing breaker plies with a device for turning over bead flippers while flat
  • Facility and method for manufacturing tread-reinforcing breaker plies with a device for turning over bead flippers while flat

Examples

Experimental program
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Embodiment Construction

[0042] The invention relates to a plant 1 for manufacturing a reinforcing ply 2 .

[0043] This reinforcing ply 2 is intended to reinforce the structure of a tire 3 and more particularly of a tire 3 intended for wheeled vehicles.

[0044] Such a tire 3 may be solid, or have a honeycomb structure (commonly used for puncture-proof tyres), or preferably, be a pneumatic tyre, without departing from the scope of the present invention.

[0045] Preferably, as Figure 11 As shown, the reinforcing ply 2 may be intended for use in the composition of the "cap body" of the tire 3, thereby reinforcing the structure of said pneumatic tire in the circumferential space contained between the carcass ply and the tread.

[0046] First, if figure 1 with figure 2 As shown, the apparatus comprises a preparation station 4 arranged to prepare a strip 5 by cutting a strip called a “straight wire ribbon” 6 .

[0047] As known per se, said straight thread band 6 is formed by a plurality of reinfor...

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PUM

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Abstract

The present invention relates to a facility for manufacturing a tread-reinforcing breaker ply (2) comprising a preparation station (4) for preparing strips (5) by cutting a tread along the grain (6),a jointing station (12) arranged to joint the strips (5) coming from the preparation station (4) so as to form a tread-reinforcing breaker ply (2), and a station (20) for turning over the strip, whichis inserted between the preparation station (4) and the jointing station (12) and which includes a first receiving surface (21), arranged to receive a strip (5), and a second receiving surface (22) associated with a reversing device (25) which is arranged to pass a strip (5) from said first receiving surface to said second receiving surface, thus turning over the strip.

Description

technical field [0001] The invention relates to the field of manufacture of reinforcing plies intended for the construction of tires, in particular pneumatic tires for vehicles. [0002] More specifically, the invention relates to the production of such plies by butting strips. Background technique [0003] In practice, it is known practice to produce a reinforcing ply by first producing, for example by calendering, a continuous strip called "straight thread ply" or "straight thread belt" comprising a plurality of continuous Reinforcing threads oriented parallel to the longitudinal direction of the strip and embedded in rubber; from this strip of straight threads are then cut at predetermined cutting angles by use of cutters called "strips" or "broadbands" sections of straight thread ribbons; the strips of reinforcing threads are then butted in pairs by paralleling the edges of the strips of reinforcing threads, for example by placing the strips one after the other on an as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/42B65G47/248
CPCB29D30/42B29D2030/0038B29D2030/427B65G47/252B29D30/70B29D2030/422B29D2030/705B29C2793/0072B29C66/1142
Inventor D·勒布朗
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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