SU1090765A1 - Apparatus for moulding chemical filaments - Google Patents

Abstract

A DEVICE FOR THE FORMATION OF CHEMICAL THREADS, containing a trough with a precipitation bath, in which is installed a straight tube with a spinneret set consisting of a body and a spinneret with O) a pie hole arrangement, which is supported by a spinner nut, characterized in that improving the quality of the yarns by preventing the funnel from forming the precipitation bath and increasing the performance properties by preventing deformation of the bottom of the spinneret; the end part of the Aulerna nut is made in the form of a cross, zhna surface korte which is located in the lower filling level of the spin bath, and mates with the inner space of the bottoms mezhsektornygl spinnerets.

Description

The invention relates to the production of chemical yarns, namely, devices for forming yarns from highly viscous polymer solutions.

A device for forming chemical threads containing a trough with a precipitation bath is installed, in which a spinning tube with a spinneret kit consisting of a housing and a spinneret with a sector arrangement of holes that is supported by a C11 spinneret nut is installed. low operational properties of the device due to deformation of the bottom of the Spinnerets at high costs of the dope.

The purpose of the invention is to improve the quality of the filaments by preventing funnel formation of the precipitation bath and improving operational properties by preventing deformation of the bottom of the die.

this goal is achieved by the fact that in a device containing a trough with a precipitation bath, in which a spinning tube is installed with a spinneret kit consisting of a housing and a spinneret with a sector arrangement of holes that rests on the Spinneret nut, the end part of the spinneret nut is made in the form of a cross, the outer surface of which is located in the trough below the filling level of the precipitation bath, and the inner one is interfaced with the intersector space of the bottom of the die.

Figure 1 shows the device, a General view; figure 2 is a section aa in figure 1.

A device for forming chemical yarns comprises a Spinneret kit 1, a spinneret nut of which has an end portion in the form of a rigid crosspiece 2, a spinneret with a sector arrangement of holes 3, a spinning trough 4 with a precipitation bath,

The die set 1 is mounted above the spinning tube 5 so that ι that the rigid crosspiece 2 of the die nut is immersed in a precipitation bath, i.e. the outer side of the cross is located above the filling level of the precipitation bath, to a depth of immersion of 5-15 mm. This is quite enough to prevent the formation of a funnel of a precipitation bath in the molding zone. The inner side of the crosspiece is interfaced with the intersector space of the bottom of the die.

The device operates as follows.

The solution enters the Spinneret kit through a manifold (not shown), creating pressure inside the Spinnerets 3. A rigid crosspiece takes up the pressure from the pressure of the solution 2. Moreover, the spinneret does not bend and does not lose its shape. After the solution pressure in the die reaches a certain value, the solution begins to flow out of the die in the form of elementary streams, which coagulate in a precipitation bath and are carried away by a stream into a spinning tube.

A freshly formed yarn from a spinning tube enters the pulling device. °

The rigid cross-piece connected to the spindle nut has a dual function. With its part immersed in the precipitation bath over the spinning tube, the spider prevents ·. the occurrence of a funnel of the precipitation bath in the forming zone, and the part on which the die is supported, prevents the die from bending and the deformation of its holes.

The proposed device with the aim of improving the quality of the Spun yarn is used with an in-depth molding method. In this case, the entire spunbond set is in a precipitation bath. A rigid crosspiece does not allow bending of the die and ensures the stability of the flow of the precipitation bath in the Formation zone.

VNIIIPI Order 3022/25

Circulation 441 Subscription

Branch of PPP Patent,

Uzhhorod, Project 4,

Claims (1)

DEVICE FOR FORMING 'CHEMICAL THREADS, containing a trough with a precipitation bath, in which a spinning' tube is installed with a spinneret kit consisting of a body and a spinneret with a sector hole arrangement, which rests on a spinneret nut, characterized in that, in order to improve the quality of the threads by prevent funnel formation of the precipitation bath and improve operational properties by preventing deformation of the bottom of the die, the end part of the die of the nut is made in the form of a cross, external to erhnost which is in the trough below the filling level of the spin bath, and the internal space conjugate to cross-cutting bottomed spinnerets.