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Assembly and method for manufacturing a green radial pneumatic tyre

A technology of pneumatic tires and radials, which is applied in the field of manufacturing green radial tires, and can solve the problems of cord path pattern obstruction, conventional path destruction, rubber layer deformation, etc.

Active Publication Date: 2012-05-16
VMI HOLLAND BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of the known stitching roller unit is that, due to the use of the rollers, the rubber layer of the tire by reinforcement with (steel) cords is deformed
This means that the mutual distance of the cords may be disturbed, and / or the normal path of the cords may be disrupted, and / or the cord path pattern may be disturbed

Method used

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  • Assembly and method for manufacturing a green radial pneumatic tyre
  • Assembly and method for manufacturing a green radial pneumatic tyre
  • Assembly and method for manufacturing a green radial pneumatic tyre

Examples

Experimental program
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Embodiment Construction

[0036] The tire drum 93 is used to be built on or unrolled on a carcass 92 having beads and sidewalls when green radial pneumatic tires are manufactured. After the crown / carcass has been placed on the carcass 92, the crown / carcass is pressed against the carcass 92 with beading, sidewalls and crown / casing by means of the pressing roller unit 1 with an adjustable force , while rotating the drums 93 so that they are attached to each other for forming an embryonic radial tire which can then be further processed.

[0037] The pressing roller unit 1 can be composed of at least one such as figure 1The composition of the stitching roller 2 is shown schematically. Using the cylinders 3, the stitching roller 2 can be moved upwards in the direction of the tire drum 93 into the position 21 for pressing against the crown / carcass, and this position is shown in dotted lines. Subsequently, the stitching roller 2 is pressed against the carcass 92 with an adjustable force.

[0038] By means ...

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Abstract

Assembly and method for manufacturing a green radial pneumatic tyre. The assembly is provided with a rotatable carcass drum (93) for carrying a carcass (92) with a belt / tread package for the radial pneumatic tyre and with a stitching roller unit having at least one rotatable stitching roller (2) having a stitching tread that can be placed against the carcass and a displacement device (6) for moving the roller radially from or towards the carcass with the belt / tread package. The stitching roller unit is provided with an individual drive mechanism for rotatingly driving the stitching tread of the stitching roller, at least without the stitching roller contacting the belt / tread package. The assembly is furthermore provided with a control device for controlling a peripheral velocity of the stitching roller, wherein the assembly comprises measuring means for determining a drive torque for driving the rotatable carcass drum or a quantity derived therefrom, and for giving a signal that is representative for the drive torque to the control device.

Description

technical field [0001] The invention relates to an assembly for the manufacture of green radial pneumatic tires provided with a rotatable tire drum for carrying a carcass with a belt / tread package for a radial pneumatic tire and having a stitching roller unit having at least one rotatable stitching roller with a stitching tread capable of being placed against the carcass and a moving device, the moving means Used to move the rollers radially from or towards the carcass with the crown / casing. [0002] The present invention also relates to a method of manufacturing a green radial radial tire. Background technique [0003] Such an assembly and method are known from European patent 0.627.302. In known assemblies, when manufacturing radial pneumatic tyres, the required crimping together of the carcass with the crown / carcass and the sidewalls and beads is carried out by a crimping roller unit, The crimping roller unit has at least one pair of dynamic rollers that follow the tir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/28B29D30/58B29D30/14
CPCB29D30/28B29D30/14B29D2030/3257B29D30/58
Inventor 亨克-简·格罗勒曼
Owner VMI HOLLAND BV
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