RU2168569C1 - Apparatus for forming untwisted roving from linen fiber - Google Patents

Abstract

FIELD: textile industry. SUBSTANCE: apparatus has reel for compacting joint fiber parts and joint fiber wetting bath. Reel is positioned between drawing pair and roving discharge pair. Joint fiber part is wetted by means of cylinder of roving discharge pair, which scoops water from bath. EFFECT: improved conditions for forming untwisted roving and increased quality of roving by controlling joined liner fibers at zone between drawing pair and inlet funnel and reduced joined fibers and water contact time. 1 dwg

Description

 The invention relates to spinning textile industry and relates to a device for forming rovings from flax fiber.

 In the process of producing yarn from natural fibers, a fibrous product (tape) is formed, which has a constant weight (linear density). To obtain yarn, this semi-finished product goes through several stages of drawing, while its linear density decreases. A product with a linear density of 0.25-2 ktex (roving) is formed by a flyer. It has two branches, one of which has a channel for passing the roving. The roving is formed by rotating the flyer (TRUEVTSEV N.I. et al. Technology and equipment of the textile industry, Moscow, Light Industry, 1975).

 The frequency of rotation of the flyers is limited due to the deformation of the branches under the action of centrifugal forces. This leads to a limitation of the speed of release and lower productivity roving equipment.

 The specified disadvantage is absent in the known device for forming an untwisted roving containing an inlet funnel, a water bath, a perforated drum rotating therein, a seal and an exhaust pair (RU 2148113 C1, 04/27/2000).

 The sliver from the exhaust device passes through the sealing funnel, enters the surface of the perforated drum, bends around it several times, passing through the seal. Since the lower part of the drum is immersed in water, the sliver on it is wetted. Passing through the seal, the sliver is wrung out and acquires a rounded shape, turning into a roving, which is discharged by the exhaust pair.

 However, when the roving is formed by such a device, the sliver in the section from the exhaust pair to the inlet funnel becomes uncontrolled and, as a result of electrostatic forces, fluffs, which leads to the sticking of fibers on the exhaust roller and increase the unevenness of the resulting roving.

 The disadvantage is that the sliver is in the water for a long time and absorbs a large amount of water that drains from the packaging during storage.

 The closest analogue is a device for forming untwisted rovings of flax fiber containing a reel for sealing the sliver and a bath for wetting the sliver (DE 737706 A, 07/21/1943).

 However, this device also does not provide optimal conditions for the formation of rovings.

 The objective of the invention is to provide a device for forming untwisted rovings from flax fiber, providing a technical result, consisting in improving the conditions for the formation of rovings when monitoring the fibers in the sliver in the area between the exhaust pair and the inlet funnel and reducing the contact time of the sliver with water.

 This technical result in a device for forming untwisted rovings made of flax fiber containing a reel for sealing the sliver and a bath for wetting the sliver is achieved by the fact that the reel is located between the exhaust pair and the exhaust pair to drain the roving, and the wetting of the sliver occurs by trapping water from the bath with the exhaust cylinder couples for removal of the roving.

 The drawing shows a diagram of a device for forming an untwisted roving.

 The device contains located between the exhaust pair of the exhaust device 1 and the exhaust pair 3 for removal of the rovings of the fin 2. The cylinder of the exhaust pair 3 rotates in the bath 4 with water.

 The device operates as follows.

 The reel 2 captures the sliver emerging from the exhaust pair of the exhaust device 1 and tightens it, after which it enters the exhaust pair 3, the cylinder of which rotates in the bath 4 with water. The sliver is wetted with water picked up by the cylinder of the exhaust pair 3, after which the formed roving is wound on the roving coil 5.

 When these conditions are met, the sliver captured by the reel does not fluff, which increases the quality of the resulting rovings and helps to reduce the unevenness of the yarn and improve its quality.

Claims (1)

 A device for forming an untwisted flax fiber roving, comprising a reel for sealing the sliver and a bath for wetting the sliver, characterized in that the reel is located between the exhaust pair and the exhaust pair for draining the roving, and the wetting of the sliver is carried out by trapping water from the bath with the cylinder of the exhaust pair for draining the roving .