SU846292A1 - Unit for making foam plastic - Google Patents

Description

(54) COIL FOR PRELIMINARYLY PREPARED BAND COMPOSITION MATERIAL

I

The invention relates to the processing of composite materials and can be applied in various sectors of the national economy using composite materials, especially when preparing preprints.

A coil is known, consisting of a hub and fixed on it at a certain distance from each other.

The disadvantage of such a coil is the inconvenience of the latency of the end of the winding tape, the edges of which are oriented by the cheeks of the coil.

The coil is known for the precursor, but the impregnated material is mounted on the frame and made of a hub and 12.JQ sleeves mounted on the hub of the needles.

The disadvantage of this design of the coil - Deformation of the edges of the material being wound in places of contact with the spokes.

The purpose of the invention is to improve the quality of the winding tape material.

The goal is achieved in that the coil is provided with additional stops in the form of tapes wound simultaneously with the composite material on the hub, oriented on one side with needles and on the other with a groove. spring roller, hinged on a telescopic telescopic bracket, pivotally mounted on the frame.

FIG. 1 shows a reel with winding material 1m; on fig.2secheniya A-A, showing the plane of the winding material and additional, jrnopOB.

The coil consists of a hub 1, on which is wound pre-impregnated tape 2 of a composite material and metal tapes 3 and 4, forming additional coil stops. Position of the stops 3

and 4 is determined by sleeves 5 and 6 fixed on hub 1 on one side, and on the other by grooves of rollers 7 and 8 pressed against the edge, tapes 3 and 4 by spring 9. Rollers 7 and 8 are hinged on sliding telescopic brackets 10 and 11, which are also hinged on the frame of the installation on which the coil is mounted. The position of the sleeves 5 and 6 is fixed by screws 12 and 13.

In the process of winding on the hub 1 of the composite tape 2, the tapes 3 and 4 are wound simultaneously, the thickness of which is equal to the thickness of the impregnated tape 2 or slightly exceeds it, but not more than twice. This is determined by the specific conditions, since with a greater thickness the height of the abutment of the belts 3 and 4 grows faster than the layers of composite material, which is a disadvantage of the known devices. In order to maintain the position of the ribbons 3 and 4 clearly with respect to the impregnated ribbon 2, on one side the belts 3 and 4 are limited by spokes 5 and 6, the number of which is sufficient to be equal to three, since they are needed only to rest the edges of the metal belts 3 and 4, and the length of the spokes is chosen depending on the diameter of the roll of the wound composite tape, and which can move along the hub 1 and be fixed with screws 12 and 13, and on the other, with rollers 9 and 8, which are spring-loaded using a spring 9; through rollers 7 and 8 "on telescopic brackets 10 and 11 and folding them.

Using the spokes 5 and 6 and the groove of the spring-loaded rollers 7 and 8, the ribbons 3 and 4 are strictly oriented,

forming additional stops in the process of winding the composite tape 2 and its winding. When a break is equal to or slightly above the level of the layers of the impregnated tape 2. Level 3 and 4 are equal to or slightly higher than the level of the layers of the impregnated tape 2, which certainly does not prevent the removal of the damaged layer and the restoration of the impregnated tape 2. If necessary unwind, which reduces the loss of intact layers of tape 2 to a minimum.

The proposed coil design expands its technological capabilities, enhances its operational convenience and the quality of the composite material being wound.

Claims (2)

1. USSR author's certificate No. 157100, cl. On 29 D 23/12, 1962. 2. The author of the USSR certificate of the USSR № 337327, cl. 65 N 75/02, 1970. {prototype).