DD271616A3 - DEVICE FOR MUTTING COMPOSITIONS OF RUBBER COMPOSITIONS USED WITH RUBBER MIXTURE - Google Patents

Abstract

The invention relates to a device for stump assembly occupied by rubber mixture strength carrier sections, as required in particular for the production of semi-finished tires. With the device, a high-quality composition with a high productivity is ensured. Gemaess invention, two pairs of jaws on their mutually movable surfaces in one another feasible teeth and between the two lower jaw parts each an elastic pressurizable hose-shaped membrane is arranged. Fig. 1

Description

For this 1 page drawings

Field of application of the invention

The invention relates to a device for Stu.npfzusammensetz occupied with rubber mixture Festlgigkeitssträgerabnchnltten to an endless belt, as it is needed in particular for the production of semi-finished tires.

Gi arktwrlstik of the known technical solutions The principle of the overlapped ones is for the composition of rubber-coated coupler sections Zi sammensotzung and composing on push known. From the composition by means of overlapping results indeed a festo connection but also an undesirable Material accumulation in this area and a superposition of individual steel cords (OE-PS 2349576). Despite more sophisticated technology, butt jointing is preferred. One possibility is the manual merging of the material edges of the reinforcement sections for the Stumpf composition. However, this method entails high inaccuracies in material merging. In principle, during butt assembly, the supply of the elements to be connected occurs in one plane or out

mutually inclined planes for use. A tempering of the tunnel to be joined is partially vorger chlagen (DE-AS 2328208, DE-OS 2236611).

The approach of the layer ends to be joined from two mutually inclined and toothed planes forms the most favorable Variant to make a durable connection. The disadvantage is that the vertically downward acting Pressure bar, although the segments pushes into the horizontal, but also pre-fixed when in contact with the layer ends dieso

and thus can prevent an approach when pressed down by the layer ends are pushed apart again.

In DD-WP 224511 a device is described for the principle of butt composition of occupied steel cord layers,

which has a pressure beam for the composition and parallel to the assembly point spring-loaded roller systems and presses the pressure bar against two rotatably mounted toothed segments in order to achieve a secure positioning.

Object of the invention

The object of the invention is the development of a device for butt molding of Kitutschukmischung occupied strength support sections, which ensures a high quality and durable composition with high productivity.

Explanation of the nature of the invention

The object of the invention is to develop a device for butt molding of rubber compound coated strength member sections, in which the strength member sections are securely positioned and fixed to achieve a high quality durable composition.

According to the invention, the object is achieved by a device for stump collapsing of rubber compound occupied strength member sections consisting of two mutually movable jaw pairs, indom the two jaw pairs have at their mutually movable surfaces meshable teeth and between the two lower jaw parts each having an elastic pressurizable tubular membrane is arranged, wherein the membrane has a corrugated surface.

AusfOhrungsbelsplel The invention will be explained below with reference to an embodiment with reference to a drawing. The apparatus for stump assembly of solid support coated with rubber composition consists of

two mutually movable clamping jaw pairs 3. These two jaw pairs 3 point at their mutually movable

Flew into interlocking teeth, between the two upper and between the two lower ones Jaw parts is arranged in each case an elastic pressurizable echlauchförmlge membrane 2, whose Surface is riffled designed. In the initial position of the device, the clamping bellows 1 are depressurized and the elastic stretchable membranes 2 through the

compressed jaws 3 relaxed (Fig. 1).

The membranes 2 are stretched by moving apart of the jaws 3. (Fig. 2) The strength stringer sections 4 to be blind are positioned in this position of the device so that their ends are

touch lightly. (Flg.3)

There is a pressurization of the stretched membranes and thus the feneltdenen Feetlgkelteträgerabechnltto

through the bellows by means of compressed air. (Fig.4)

This clamping of the FestigkeltstrBgerabschnitte causes the collapse of the jaws and thus

connected relaxation of the membranes Festigkeltetragerabschnltte pressed against each other and thus quality connected with each other. (Fig. 5)

The surface of the membranes is expediently designed corrugated to a sufficient entrainment of the layers to

guarantee.

The advantages of the invention are the achievement of a high quality and durable composition of high quality,

by a secure positioning and fixing the Festigkeltsträgerabechnltte done. Due to the stump assembly, Maerlalanhlufungen in the area of Zusammenseustelle, such as occur in the overlapped assembly, avoided.

The parallel thread course also remains at the merge point and it will be undesirable at this point Strains of rubber bridges between the threads excluded.

Claims (2)

1. An apparatus for butt composition of occupied with rubber mixture Fe8tlgkeitsträgerab8chnitten consisting of two mutually movable jaw pairs, characterized in that the two pairs of jaws (3) at their mutually movable surfaces meshable teeth have and between the two lower jaw parts each have an elastic pressurizable hose-like Membrane (2) is arranged. 2. Device according to claim 1, characterized in that the membrane (2) has a corrugated surface.