SU941436A1 - Machine for continuously producing man-made silk - Google Patents

Description

(54) MACHINE FOR CONTINUOUS PRODUCTION OF ARTIFICIAL SILK

one

The invention relates to the instrumentation of technological processes for the production of chemical fibers, namely, machines for the continuous production of viscose silk.

A technical tool is known, where the washing unit is designed as a gradient tube l.

Also known is a machine for the production of viscose silk, which contains the feed and dosage unit of the spinning dope, the molding unit, the plasticization unit, which has a bath and means for orientation drawing, transporting elements, pre-washing, washing, drying and receiving units 2.

A disadvantage of the known devices is their large size.

The aim of the invention is to reduce the size.

This goal is achieved by the fact that in a machine containing a delivery and dosage unit of the dope.

molding unit, plasticization unit having a bath and means for orientation drawing, transporting elements, prewashing, washing, drying and receiving units, means for orientation drawing are made in the form of a pair of self-driving rollers, one of which is located in the bath and the other above her. Besides,

The jQ supply and dosage unit of the spinning solution is made in the form of a pump with at least two pairs of metering gears and screws, each worm has tubes connected to the corresponding pair of metering gears. In this case, the washing unit is made in the form of a gradient tube.

The drawing shows a diagram of the machine 20.

Claims (3)

The machine contains a feeding unit and metering of the spinning solution, made in the form of a pump 1, having two pairs of metering gears 2, and a screw 3, which consists of two paired tubes k connected to a pair of metering gears 2. The molding unit contains a block die set 5 consisting of two or more nozzles 6, with each of which one worm tube is connected separately. 3. The die set 5 is immersed in a trough 7 with sediment liquid. One filament is formed from each spinneret. Above the trough 7 with a sedimentation tank is installed a capillary washing device 8, designed for separate parallel processing of the filaments with a small amount of liquid. The forming unit is connected to the restoring unit by means of a transporting element, made in the form of a roller 9 with two or more grooves 10. The roller 9 is rotated from the movement of two or more threads. The secondary node contains the cortex 1 1 with a pre-replacement fluid and roller 12, which, like the floor E, rotates from the movement of the threads. A follow-up unit is followed by a pair of rollers 13 for washing the threads and transferring them from one side of the machines to the other. The final washing unit of the thread is made in the form of a vertical gradient tube 14. The roller 15 and the device 16 are provided for drying and receiving the threads, respectively. Thus, at all technological stages, such elements (nodes) are used that allow two threads to pass simultaneously, which move parallel to each other. This makes it possible to reduce the distance between the filaments to 50-70 mm and create a high-performance machine. Since the length of the machine is usually 22 m, then at the indicated distance it contains 300 50 spinning places, which is 1.5-2.0 times greater than that of the known machines of continuous action. The machine works as follows. The viscose is pumped by pump 1 and screw 3 into ka 3 to the die block 5, which is immersed in a precipitation liquid to a depth of 600 mm. Freshly formed yarns through a capillary washing device 8 and two rollers 9 12, one of which is located at the border of the section of the precipitating and pre-reducing fluid, and the second in the pre-replacement fluid, are taken over a pair of cantilever rollers 13. The rollers 9, 12 have at least two slots and rotate from the movement of the filaments (two or more). The use of multichannel rollers relieves the tensions in the filaments that occur when the filaments move. The capillary washing device 8 consists of a conical tray (not shown in the drawing) in which the fabric is placed in such a way that one edge of the fabric is lowered into the trough 11 with a pre-reduction fluid. Due to the wettability of the fabric and the difference in the level of liquids, the pre-reducing liquid enters the capillary washing tray, ensuring a constant flow rate of 0.51.0 0 l / h per thread. Capillary washing removes acid 50 and its salts from the filaments. The recycling water trough 11 receives recycled water from the sump of a pair of cantilever rollers 13, which are irrigated with softened water. When the filaments exit, 951 acids and its salts and most of the sulfur are removed from the non-reducing fluid. Next, the filaments enter the gradient-washing device 1, where the avivazhny treatment takes place, which is a guarantee rinsing in case of passage of the acidic filaments, the aviation solution has 5. On exiting the device, the filaments are taken on drying cylinders 15 with intersecting axes, one of which is heated by steam. After drying, the threads are taken on the spindle 16. Two rows of spindles with a common drive are located above the drying unit. The proposed arrangement reduces the size of the machine. Claims 1. A machine for continuous production of rayon containing a spinning solution supply and dosage unit, a molding unit and a plasticization unit having a bath and orientation stretching means, conveying elements, prewashing, washing, drying and receiving units, characterized in that that, in order to reduce the size of the machine.