SU1763533A1 - Roving manufacturing method - Google Patents

Abstract

Use: manufacture of asbestos technical products. Summary of the invention: when roving is obtained, the fibrous veil is divided into ribbons, the latter are moistened during the process of spacing with a pair of limber sleeves by supplying a wetting liquid to the reverse branch of the inferior limb sleeve, and a roving is wound through the air layer. 1 il.

Description

The invention relates to the textile industry and can be used to tie a fibrous veil in obtaining rovings of various compositions.

A known method of producing rovings, which implies its moistening by acting on wetting rollers directly on the rovings (1).

The disadvantage of the method is the unevenness of the properties of the roving in length due to double loosing.

The closest in technical essence to the proposed method is a method for obtaining a roving, which involves moistening it in the process of spinning through the interaction of wetting rollers and surfaces of the clipping sleeves.

The disadvantage of cnocofca is the poor quality of roving.

The purpose of the invention is to improve the quality of rovings.

The essence of the invention is that the roving is obtained by dividing the fibrous veil coming from the carding apparatus with a strap divider into ribbons, wetting the ribbons in the process

Branching with wet branching sleeves, which are wetted by supplying fluid to the reverse branch of the lower branching arm through the air layer.

The drawing shows a device for implementing the method.

A device for receiving a roving contains a strapler 1 installed at the output of the hackling machine (not shown) and placed between it and the roving 2 winding units 3 of a pair of twisting sleeves 4 and 5 of the locking mechanism. Under the lower limbing sleeves 5 are placed the pipes 6 for supplying a wetting liquid. The limiting sleeves 4 and 5 have drives of translational and oscillatory motion in the transverse direction.

The device works as follows .t

Coming from the combing apparatus of the combed fiber voile 7, the passage of the strap divider 1, is divided into ribbons 8, which are fed into the strap sleeves 4 and 5. The lower stitch sleeves 5 are moistened (L

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with

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with the liquid coming from the nozzles 6. The lower end of the sleeves 5, when interacting with the upper end of the sleeves 4, bind the ribbons, forming from them a roving 3, which is wound onto the packs 9. The metal pallets 10 installed under the lower end sleeves 5, collect the draining from the lower clamping sleeves 5 of the wetting fluid and provide separation of the working zones of the roving manufacturing. The lower chuck sleeves 5 are installed with respect to the dividing straps in such a way as to remove the fibrous ribbons from the straps without touching them with their wet surface and take them into the gap between the limiting sleeves. Water, surfactant solutions, resin solutions, lztexs, etc. can be used as the wetting fluid. The wetting degree of the lower limiting sleeves can be controlled by the amount of fluid supplied through the nozzles 6.

The supply of a moistening fluid through the air layer ensures unrestricted movement of the lower systolic sleeve, the absence of friction between the sleeve and. a fluid supply device; and the ability to arbitrarily vary the amount and composition of the fluid supplied. As a result, the quality of roving obtained is improved.

Claims (1)

Claim Method A method for obtaining a roving by dividing a fibrous veil into ribbons, wetting the latter in the process of spacing with a pair of twisting sleeves by feeding a wetting fluid to the return branch of the lower limiting sleeve, winding the roving, characterized in that, in order to improve the quality, the wetting liquid is passed through the air layer. four