SU1366421A1 - Method of producing reinforced belts - Google Patents

Abstract

The invention relates to the manufacture of rubber technical. products and is intended to be used for making seat belts, in particular endless wedge rubber belts. The purpose of the invention is to increase the service life of belts. To do this, fiber fiber filler is introduced into rubber compound 8 and then a belt compression layer is formed gradually over the entire length of the belt workpiece. At each stage of forming the compression layer, the rubber mixture 8 with a filler from the loading chamber 7 of the injection mold 6 is forced through a slotted casting channel 1U simultaneously along the entire reinforcing layer 1 that is in the molding cavity 5 of the mold. 10, a stream of rubber compound with a fiber filler oriented along it is laid in the direction of least resistance. As a result, the fibrous filler in the compression layer is laid in layers transverse to the longitudinal axis of the belt. 2 Il. 1 (L

Description

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The invention relates to the manufacture of rubber technical products and is intended for the manufacture of drive belts, in particular endless wedge rubber belts.

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

1 shows the device

the rubber mixture is laid in the direction of least resistance, which causes the fibrous filler to be applied in layers transverse to the longitudinal axis of the belt.

At the end of the molding of the compression layer in the area of 1 mold

for carrying out the method; in FIG. 2, the second is opened, with the aid of the drums 3 and section A-A in FIG. 1.

The method of making reinforced belts can be made as follows.

The reinforcing layer of the belt, pre-assembled with a layer 2 of stretching, is placed on the drive 3 and tension 4 drums and winding into a cavity with one section of length 1

4, the molded belt blank is removed from the forming cavity 5 and the next section of reinforcement layer 1 with the stretch layer 2 is inserted into the next one, the mold is closed and the next step is to form the belt compression layer. After the compression layer has been molded along the entire length of the workpiece, the belt is overlaid on it

5 of the injection mold 6; A rubber mixture 8 into which the fibrous filler is inserted is inserted into the loading layer and the volcanic chamber 7 of the mold 6 is placed.

Using a press (not shown), the plunger 9 of the loading chamber 7 is lowered, with which the rubber mixture is forced from the loading chamber 7 into the forming cavity 5 through the gating slot channel 10 in the perpendicular plane of the reinforcing layer 1

25

thirty

nizapi

one

Claims (1)

Ready belts have high performance. Invention Formula A method of manufacturing reinforced belts, in which a compression layer is gradually formed over the entire length of the belt blank by moving successive sections of the reinforcing layer through the molding cavity. pressing and molding a compression layer in it when the rubber mixture is pushed from the loading chamber into the forming cavity in the perpendicular plane of the reinforcing layer in the direction from the smaller base of the belt profile, a facing layer is applied and the resulting belt preform is vulcanized the life of the belts, a fibrous filler is injected into the rubber mixture, and at each step of forming a belt compression layer, the rubber mixture with the filler from the loading chamber is pressed simultaneously along total area of the reinforcing layer located in the cavity. form, the layer of compression of the belt. In this case, the rubber mixture with the filler material is simultaneously along the whole of the reinforcement layer 1 in the forming cavity 5 of the mold 6 with the length 1 of the reinforcing layer from the side of the smaller base of the forming cavity 5. direction of the mixture flow, go along with it into the mold (the cavity and are located in the latter parallel to the plane of the reinforcing layer 1), since the filling of the forming cavity occurs simultaneously about the length 1 of the entire formable section, It is carried out in a jet mode, t, e, without the occurrence of a pressure gradient along the length of the formable section of the belt compression layer. opens when the drums 3 are trapped and 4, the molded belt blank is brought out of the forming cavity 5 and the next section with a length of 1 reinforcing layer 1 with layer 2 of the alternate stretch starts, the mold is closed and the next step is formed to form the compression layer of the belt. After the compression layer has been molded along the entire length of the workpiece, the belt is overlaid on it volcanic layer nizapi one Ready belts have high exp. luatatsionnye qualities. Invention Formula A method of manufacturing reinforced belts, in which a compression layer is gradually formed over the entire length of the belt blank by moving successive sections of the reinforcing layer through the molding cavity. pressing and molding a compression layer in it when the rubber mixture is pushed from the loading chamber into the forming cavity in the perpendicular plane of the reinforcing layer in the direction from the smaller base of the belt profile, a facing layer is applied and vulcanized the resulting belt preform, characterized in that the life of the belts, fibrous filler is introduced into the rubber mixture and at each step of forming the belt compression layer the rubber mixture with the filler from the loading chamber is forced simultaneously into the portion of the entire reinforcing layer section located in the cavity cavity. Hb fie