SU1232488A1 - Device for impregnating strip material - Google Patents

Description

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The invention relates to equipment for the impregnation of tape material by dipping in a bath.

The aim of the invention is to increase the efficiency of impregnation.

In this device, simultaneously with elastic vibrations, directed perpendicularly to the web of material on both sides, the web is affected by vibration in the longitudinal direction of the penitel, while the elastic vibrations are asynchronous.

Due to the phase shift of elastic vibrations acting on one side of the web relative to elastic vibrations directed to the other side, gas inclusions and moisture are squeezed out by the impregnating liquid from the web. And the effect of vibration on the canvas in the longitudinal direction contributes to filling all the pores with the impregnating liquid.

FIG. 5 shows a device diagram; in fig. 2 - vibration pulse emitter; in fig. 3 shows section A-A in FIG. 2

The device for impregnation of the tape material consists of a bath 1 with connections to {xx 2, t 3 and immersion rolls, vibration-impulse emitters 5 and electromechanical vibrator 6. Two vibration-impulse emitters 5 are fixed with ends one to the mobile frame 7, carrying an immersion roller A. In parallel to them, two other radiators 5 are mounted on the walls of the bath 1. The upper part of the movable frame 7 is connected with an electromechanical vibrator 6.

The vibration pulse emitter 5 comprises a housing 8, a pressure washer 9, a membrane 10, a gasket 1I, an involuted coil 12, contact electrodes 13 and fastening bolts 14. Contact electrodes 13 are connected to a generator (not shown).

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45 The device has two generators, one of which is connected to radiators 5 mounted on a movable frame 7, and the other to radiators 5 mounted on the walls of bath 1. At the same time, radiators 5 work asynchronously.

The device works as follows.

When the web is inserted through the impregnation bath I, a generator and a vibrator 6 are applied. At the moment when a high pulse voltage is applied to the contact electrodes 13, the involute spiral 12 inductively induces corresponding impulses in the membrane 10, as a result of which the membrane 10 produces sharp oscillatory movements. The frequency and amplitude of oscillation of the membrane 10 depends on the characteristics of the pulses leaving the generator. During the asynchronous operation of the diffusers 5 installed on the bath 1 and on the frame 7, the surface of the web is alternately subjected to vibrations, either inside the loop or outside. This prevents the formation of an air-water plug in the web of fibrous material.

Having performed together with the frame 7 reciprocating jogging movements under the action of the vibrator 6, the submersible roller 4 impulsively acts on the web in the longitudinal direction with a certain amplitude and frequency. The mechanical deformation of the internal structure of the web, which occurs at the same time, contributes to a more complete filling of the gaps between the fibers of the tape material with the impregnating liquid.

The use of the invention allows, by eliminating non-impregnated areas within the structure of the tape material being processed, to improve product quality.

1Q11 P P 12

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Compiler ft. Osipova Editor P. Kossey Techred O. Gortvay Proofreader I. Muska

Order 2733/17 Circulation 640 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Fi.Z

Claims (1)

DEVICE FOR IMPREGATING TAPE MATERIAL, including a bath with a binder and a frame installed in it, carrying guide rolls and parallel-located in the loop space vibration-emitters with drives, characterized in that, in order to increase the efficiency of the impregnation, it is equipped with a vertical vibrator connected to the frame bearing guide rolls and vibration-emitters, the sources of elastic vibrations facing one another having individual drives.