SU395275A1 - PRESS FORM FOR VOLCANIZING COATINGS - Google Patents

Description

one

The present invention relates to the manufacture of pneumatic tires and is intended for the vulcanization of tires.

Known nress-form for vulcanization of tires, containing the upper with a tapered skirt and lower zero forms, radially widened sectors, interacting with the shanks with the grooves of the tapered skirt and the fixed sections in the divorced polishing of the spring sectors.

In a well-known mold, the sectors interact with the puzzler of the tapered skirt of the upper sheet of the mold. The opening and the opening of the mold, which causes rapid wear of its parts.

The purpose of the invention is to increase the service life of the mold.

For this purpose, in the proposed mold, the sectors are provided with pads, fixed on their shanks and interacting, with the NMI at the open of the press form from the outer surface of the cone skirt. To their bases of the sectors, there are rigidly attached sliders mounted with, possibly, mounted on the bottom half-form and connected by means of rods to fixed rods. The grooves of the conical skirt are made in the form of lrorose, open from the bottom and gutter. Fixing springs are mounted concentric to rods

lining sections made of antifriction material are mounted in the mounted on the bottom hemofor (IU cases, and on the sections of the conical skirt interacting with the pads of the sectors).

FIG. 1 depicted; en described despreform; in fig. 2 - view A on. one.

The mold contains upper / lower 2 zero forms and radially extending sectors 3. The upper half-form has a tapered jubilee, ku, in which slots a are made open from the bottom half-mold. On the outer surface of the skirt. Lining 4 of anti-wear material, such as bronze or teflon, is mounted.

The sectors have interacting with the slots shanks, on which the pads 5 are attached, which interact with the lining 4. To the base of the sectors with the help of the tsavf 6, the sliders 7 fixed with the possibility of movement in the slots made on the half-form 8 are fixed. The chimneys 9 are connected to the fi x xiruyuschiy prulins in 10, which hold sectors 3 in a diluted position. The rods 9 have flat stops // included in the slots 7 made in the slider. , 10 are installed concentrically with the rods 9 in the knuckles 12, which are fastened on the bottom half-form, with the stops 13.

On the wall of each housing .12 there is a window M for adjusting the progress of the sectors; when assembling the preos-shape.

(Press Pharma works as follows.

After loading the raw tire in the inpecc (the shape of the sectors 3 separated from the center, the upper half-mold is lowered, closing the inpec-form. At the same time, the sector shanks go into the notch of the upper half-form skirt. (he goes to the center and loses it.

At the end of vulcanization, the upper half-form lifts and, interacting with the overlays 4 of the conical skirt with the “pads 5,” moves the last ones. In this case, the locking springs W expand and, through the rods 9 and the sliders 7, hold the sectors in an unbroken position, preventing them from self-rotating.

Subject invention

Claims (3)

1. Mold for vulcanization of the caps, containing the upper with a tapered skirt and the bottom half-form, radially extending sectors, interacting with shanks with grooves of the tapered skirt, and securing sectors of the spring in the divorced position, characterized in that, in order to extend the service life of the mold, the sectors are provided with collets attached to their shanks and interacting with the opening of the mold with the outer surface of the conical jub, ki, and sliders rigidly attached to their base, mounted to move on the lower half-form and connected by means of rods with ficoirings mi springs, and the grooves of the tapered skirt made in the form of slots open from the bottom half of the form. 2. A press mold according to claim 1, characterized in that the fixing springs are mounted concentrically to the rods in the bodies mounted on the bottom half-form. 3. The press-form according to claim 1, wherein THAT on interacting with the block sectors of the conical skirt are mounted lining, made of antifriction material. 7 / X / 4 / / / J  ABOUT