The method of manufacture of studded tires

 

(57) Abstract:

Usage: the invention relates to the tire industry. The inventive method of manufacture of studded tires is to build on the technological equipment procurement of the raw tire. Then the workpiece is placed in a mold of a vulcanizer and carry out the initial stage of vulcanization at a temperature of 30 - 90oC. Hole studded perform in the tire after its removal from the vulcanizer in the temperature range 30 - 90oWith, put them in the adhesive composition on the basis of sulfur and rubber and injected into holes pre-coated copper-containing material thorn snow. Then put the tire on the drive aperture of the vulcanizer, podumaut it to the specified value and balance, and then the bus to stabilize the completion of vulcanization.

The invention relates to the tire industry and the manufacture Osipovna tires for wheeled vehicles used to improve the adhesion with a support surface when driving in the winter season.

A known method of making winter tires, which consists in the Assembly of technological equipment wet tyres and anti-skid spikes in these drilling with subsequent fixing lugs at the expense put into the hole of the adhesive powder coatings based on thermosetting film-forming agent.

The disadvantage of this method of manufacture Osipovna tires for the winter period of operation is that the implementation of the holes in the finish after the vulcanization of the product leads to the violation of bodily integrity checkers and internal connections in the rubber tread. The introduction of a stud into the hole deepens deformation processes in a stretched rubber around the hole that leads to premature breaking of these links mounting the cleat with the surrounding rubber layer, with the result that significantly affects the reliability of fastening of a thorn in the piece. In addition, when the rolling wheel is a significant change in the shape of checkers, as it not only radial forces, but also the lateral shear force. In this regard, to avoid falling out of the last spike equip strongly developed grounds, providing a devastating effect on the layers of the carcass and breaker.

To correct these deficiencies was developed according to the present invention, the method of administration of the anti-skid elements at the stage of manufacture of the raw tire with fixation of these elements in the tread surface during vulcanization.

The invention solves the technical problem on reliable fixing of studs is Achievable technical result is to increase performance snow tires.

This technical result is achieved in that in the method of manufacture of studded tires, which consists in the Assembly of technological equipment wet tyres, with subsequent vulcanization, the execution of a process perforations in the lugs of the tread and the introduction of studs in these drilling with subsequent fixing lugs at the expense put into the hole of the adhesive composition, these holes are performing tire in the temperature range of 30-90oC after its removal from the vulcanizer, put them in the adhesive composition on the basis of sulfur and rubber, is injected into the holes pre-coated copper-containing material thorn snow, then put the tire on the drive aperture of the vulcanizer, podumaut it to the specified value and balance, then bus to stabilize prior to the completion of vulcanization.

These characteristics are essential and interrelated with the formation of a stable set of essential features, sufficient to obtain the desired technical result.

Thus, the preliminary molding of the raw tire in a press vulcanizer in the temperature range of 30-90oC is performed under the supplemented flax stage of forming links in the rubber at the molecular level. When removing the tire from the vulcanizer it becomes possible to perform the studded tires on the lug, the boundaries of which are already shown on the outer surface of the tire. The removal of the tire is within a given temperature range, in which the initial stage of transformation of the molecular bonds will not affect the subsequent process changes the molecular bonds in a complete cure. The introduction of the adhesive composition on the basis of sulfur and rubber allows to provide increased coupling quality of the connection is covered with a copper-containing alloy cleat and the rubber protector.

The method of manufacture of studded tires is that the technological standard equipment assemble raw billet bus in accordance with its design. Then this preparation serves loader in the vulcanizing chamber, a mold whose inner surface has a matrix, repeating the next tread tires. Applying pressure to the diaphragm mechanism, the drive is bus, alter the geometry of the tire from cylindrical to toroidal and podawaniem provide forceful contact with the external surface trasformare bus matrix. This process produces the to matrix tread, clearly visible boundaries of the future protectors and consequently facilitated the establishment of the geometric centres for the production of studs. After that, the raw tire is removed from the mold vulcanizer.

In these geometric centers borders decorated lug perform a standard way of drilling, enter the adhesive composition on the basis of sulfur and rubber and install the anti-skid spike, pre-coated copper-containing alloy. This ensures studded raw tire until its complete vulcanization.

After the tire-studding the bus back to the drive aperture of the vulcanizer, podumaut to normative values and balance, due to the fact that in the formulation of thorns possible imbalance in General.

Then the tire is placed in the mold vulcanizer, where it stabilized until the completion of vulcanization.

Use as an adhesive composition of sulfur and rubber, i.e., those components that are already part of the rubber, allows for vulcanization of tires to get a reliable connection of the cleat with the tread rubber. And for the stabilization process ties and rubber material thorn latter by iMER performance equipment for the manufacture of winter Osipovna tires, as the latter is a standard, and the process itself in terms of additions does not change the technology of Assembly and vulcanization of tires.

Manufactured in the described manner tyre with studded has a high operational reliability and durability. This is because when you install the spikes there is no mechanical damage to the layers of rubber, as is the case with the introduction of spikes in the finished product. The anti-skid spike can be simple in design, because of its connection with rubber are formed not by artificial means, such as glue, paint, developed surfaces, ledges, antennae, and so on, but a natural process of adhesion caused by vulcanization. Thus keeping a cycle of automated Assembly and manufacturing bus without involving manual labor.

The method of manufacture of studded tires, which consists in the Assembly of technological equipment wet tyres, with subsequent vulcanization, the execution of a process perforations in the lugs of the tread and the introduction of studs in the specified drilling with subsequent fixing lugs at the expense put into the hole of the adhesive composition, characterized in that Thu is meshaut them in the adhesive composition on the basis of sulfur and rubber, enter into the holes pre-coated copper-containing material thorn snow, then put the tire on the drive aperture of the vulcanizer, podumaut it to the specified value and balance, and then the bus to stabilize the completion of vulcanization.

 

Same patents:

The invention relates to the tire industry and the manufacture Osipovna tires for wheeled vehicles used to improve the adhesion with a support surface when driving in winter

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EFFECT: increased antislip and wear-resistant properties of tire tread.

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EFFECT: increased reliability and service life of antislip device.

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EFFECT: increase of tyre contact with slippery road and their multifunction.

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