DD144374A1 - PROCESS FOR PRODUCING REINFORCING MATERIAL FOR TIRE PRODUCTION - Google Patents

Abstract

The invention relates to a process for the preparation of Reinforcement material for tire production, dera das. Reinforcement material is coated with rubber mixture. By· The invention is intended without high mechanical complexity the possibility of economic use of material in the Tire production are created. Here is the overlap in the composition of the individual material sections to be of high quality and uniform Allow tire construction. According to the invention, the use of the Reinforcing material in the edge zones in the width of provided overlap with the central zone by 20 to reduced to a maximum of 65¾

Description

Process for the production of reinforcing materials for tire production

Field of application of the invention:

The invention "relates to a process for the production of reinforcing material for tire production, where the reinforcing material is coated with rubber compound".

Characteristic of the "known technical solutions;

Known is the production of reinforcing material for tire production from various reinforcements wia z. B. Cords of different constructions of viscose, polyamide, polyester glass and steel,

From the strength to be used, webs are made which are across the width using the same. Strengtheners of the type and construction produced are "bites tracks are rubber-mottled", either straight or straight, cut into sections and continuously overlapped at the non-cut edges. "These overlaps, however, provide an additional material to the wall >

It is also known to put the individual sections butt. The maschinentechnischo effort here is Oodoch much higher and the quality of the composition of a variety schwor influenceable factors dependent, why this type of composition could not prevail so far =, ''

Object of the invention:

The invention is intended to create the possibility of economical use of material in tire production without high masohinentechnisGhen effort v / ground.

Explanation of the essence of the invention:

The object of the invention is to produce reinforcing material of the type described while securing a high-quality composition which allows a more uniform tire structure than is currently possible with overlapping produced reinforcing material. The object is achieved by a method for the production of reinforcing material in which the use of rubber compound ₅ obliquely or straight cut in sections and continuously overlapped at the non-cut edges composite reinforcing material in the edge zones in the Braite 'the intended overlap by 20 up to a maximum of 65 % (in particular 40 to 50%) is reduced compared to the middle range. In order to achieve this reduction, reinforcing material with a reduced fineness is used in the marginal zones. In addition, a thread density regulation can be made in the edge zones.

The invention makes it possible to make the Mat3rialeinsatz at the Überlappüngsstelle economically cheaper, the volume of the overlap is according to the invention in the interest of qualitati? However, the use of materials in strength carrier is practically on the. Half reduced. The required according to the invention higher cost of rubber compound for covering costs is much lower than the saved effort on strength carrier.

Furthermore, it is possible with the invention to produce more uniform tires by the uniform reinforcing element insert despite overlaps in the production of the reinforcing materials. The accumulation of rubber mixture at the overlapping point has no influence on the tire material, especially since tire vulcanization is prevented by the softening of the material becomes.

.Ausführungsbeispiel:

The invention will be explained in more detail below using an exemplary embodiment:

For the production of reinforcing material for the manufacture of tires, various reinforcements such as "B", cords of various constructions of viscose, polyamide, polyester, glass, steel, etc. can be used. "The production of the webs from these materials takes place in the peripheral zones , in the range of the later overlap, a reduction of the reinforcing material by 20 to a maximum of $ 65, in particular 40 to 50 % _f compared to Mittelbereioh. In order to achieve this reduction, reinforcing material with a reduced fineness is used in the edge zones. »The following examples were named for this purpose:

Randζoneη. the central region

Viscose cord 184 tex χ 1 χ 2 Viscose cord 370 tex χ 1 χ 2

Polyamide cord 'ßf tex χ 1 χ 2 Polyamide cord AEB tex χ 1 χ 2

Steel basket d 3 χ 3 χ 0.22 J Steel cord "7 χ 4 χ 0.175

In addition, a thread density regulation can be carried out in the edge zones, which should be explained by the following examples:

Randζonen 184 tex χ 1x2 Mittelbereic H . tex X 1 χ 3 Viscose cord 60 threads / dm 7 χ 4 χ O ₃ 175 Viscose cord 80 threads / dm 184 τ X O, 20 Steel cord 30 threads / dm Steel cord 50 threads / dm 7x

The web of reinforcing material thus produced is evenly covered with rubber compound, cut obliquely or straight into sections and continuously overlapped on the non-cut edges.

Claims (1)

Inventions j is that webs formed from Varstärkungsmaterial and used straight cut le process for Hexstellung of reinforcing material for the Reifenfortigung, "in which the reinforcing material with rubber mixture is ^ obliquely odor into sections and overlaps continuously at the non-cut edges composed v / _ith? characterized in in which the use of the reinforcing material in the edge zones in the width of the intended overlap is reduced by 20 to a maximum of 65 #> in particular 40 to 50 % _{9 in} relation to the center area * Method according to item 1, characterized in that reinforcing material is used in the edge zones in the width of the intended overlaps, which has a reduced fineness compared with the reinforcing material used in the co-invention I * « Method according to item 2, characterized in that in the edge κ on en zu.sata.llch sine thread density regulation is made.