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Laminating drum preshrinking method for avoiding clamping deformation of tread of VMI forming machine

A drum-fitting and pre-shrinking technology, applied in the field of tire manufacturing, can solve problems such as the inability to set the tightening distance of the clamping block, the sagging deformation of the tread component, and the impact on the quality of the tire, so as to solve the problem of the clamping deformation of the tread. , reduce the degree of clamping, improve the effect of comprehensive quality

Active Publication Date: 2021-11-26
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of the automatic sensing function of the clamping ring, there is currently no way to set the tightening distance of the clamping block, and because the clamping ring is tight, the tread assembly will sag and deform after the fitting drum is removed phenomenon, which in turn affects the quality of the entire tire

Method used

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  • Laminating drum preshrinking method for avoiding clamping deformation of tread of VMI forming machine
  • Laminating drum preshrinking method for avoiding clamping deformation of tread of VMI forming machine
  • Laminating drum preshrinking method for avoiding clamping deformation of tread of VMI forming machine

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method of pre-shrinking the fitting drum to avoid the clamping deformation of the tread of the VMI molding machine. During the process of shrinking the clamping ring to prepare the tread for clamping, the fitting drum is pre-shrunk by a certain amount radially inward. In order to reduce the clamping degree of the clamping ring to the tread assembly;

[0021] Among them, the pre-shrinkage of the bonding drum has the following process:

[0022] (1) The clamping ring is ready to clamp the tread assembly;

[0023] (2) Pre-shrink the fitting drum;

[0024] (3) The clamping ring clamps the tread assembly, and the fitting drum shrinks to the end;

[0025] In addition, the specific operation for pre-shrinkage adjustment in the operation page of the bonding drum in the one-shot VMI molding machine is: after the belt drum is selected, the pre-shrinkage drum before the tread assembly is removed in the product parameter column Set the setting value to 0-10mm.

[0026] Under o...

Embodiment 2

[0029] This embodiment is basically the same as the first embodiment above, and its main difference is:

[0030] Under other identical conditions, the pre-shrinkage of the fit drum circumference is set to 5mm.

[0031] Test results: The tread components are normal; the comprehensive pass rate is 100% (100 pieces). 4-6mm

Embodiment 3

[0033] This embodiment is basically the same as the first embodiment above, and its main difference is:

[0034] Under the same other conditions, the pre-shrinkage of the fit drum circumference is set to 8mm.

[0035] Test results: The belt of the tread assembly is arched; the comprehensive pass rate is 98% (100 pieces).

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Abstract

The invention belongs to the technical field of tire manufacturing, and particularly relates to a laminating drum preshrinking method for avoiding clamping deformation of a tread of a VMI forming machine. According to the laminating drum preshrinking method for avoiding clamping deformation of the tread of the VMI forming machine, the laminating drum preshrinking flow includes (1) preparation of a clamping ring for clamping of a tread assembly, (2) preshrinking of a laminating drum and (3) clamping of the tread assembly by the clamping ring and ending of shrinking of the laminating drum. The specific operation for laminating drum preshrinking is as follows: after a belt drum is selected on a laminating drum operation page in the VMI forming machine, a set value is set to be 4-6 mm at a preshrinking drum before the tread assembly in a product parameter column is moved away. The problem that the tread assembly droops and is flat is effectively solved, and the comprehensive quality of the tire is improved.

Description

technical field [0001] The invention belongs to the technical field of tire manufacturing, in particular to a method for pre-shrinking a bonding drum for avoiding clamping deformation of a VMI molding machine tread. Background technique [0002] During the clamping process of the tread component of the VMI molding machine, the clamping ring will wrap the tread component on the fitting drum and clamp it through the clamping needle. The clamping ring has an automatic sensing function and stops after clamping the tread. shrink. Because of the automatic sensing function of the clamping ring, there is currently no way to set the tightening distance of the clamping block, and because the clamping ring is tight, the tread assembly will sag and deform after the fitting drum is removed The phenomenon, which in turn affects the quality of the entire tire. Therefore, how to effectively solve the sagging and flat shape of the tread assembly to improve the overall quality of the tire h...

Claims

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Application Information

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IPC IPC(8): B29D30/26B29D30/24B29D30/00
CPCB29D30/26B29D30/24B29D30/0061B29D2030/0066
Inventor 郑渊斐
Owner ZHONGCE RUBBER GRP CO LTD
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