SU821553A1

SU821553A1 - Drafting mechanism

Info

Publication number: SU821553A1
Application number: SU792781083A
Authority: SU
Inventors: Алексей Алексеевич Макарин; Игорь Иванович Рыжиков; Александр Сергеевич Виноградов
Original assignee: Ивановское Специальное Конструктор-Ckoe Бюро Чесальных Машин
Priority date: 1979-05-28
Filing date: 1979-05-28
Publication date: 1981-04-15

Description

(54) ВЫТЯЖНОЙ ПРИБОР(54) EXHAUST DEVICE

1one

Изобретение относитс к текстильному машиностроению и может быть использовано на ленточных или чесальных машинах.The invention relates to textile machinery and can be used on tape or carding machines.

Известен выт жной прибор с круглыми зубчатыми валиками, наход щимис в зацеплении с зазором между зубь ми, причем глубина зацеплени может регулироватьс . Зубь на валиках расположены винтообразно , валики расположены попарно, пары смонтированы последовательно 1.A pulling device with round toothed rollers meshed with a gap between the teeth is known, with the engagement depth being adjustable. The teeth on the rollers are screw-shaped, the rollers are arranged in pairs, the pairs are mounted in series 1.

Недостатком данного выт жного прибора вл етс сложность в изготовлении из-за необходимости применени высокоточного привода, обеспечивающего отсутствие контактов , между зубь ми, а также недостаточна степень параллелизации и распр мленности волокон.The disadvantage of this exhaust device is the difficulty in manufacturing due to the need to use a high-precision drive that ensures the absence of contacts between the teeth, as well as an insufficient degree of parallelization and diffusion of the fibers.

Цель изобретени - повышение степени .распр мленности и параллелизации волокон в ленте.The purpose of the invention is to increase the degree of uniformity and parallelization of fibers in the tape.

Указанна цель достигаетс тем, что выт жной прибор снабжен зубчатым барабанчиком , установленным с разводкой между нижними валиками питающей и выпускной пар и под выт жными зубчатыми валиками, при этом выт жные зубчатые валики смонтированы с разводкой по отношению к верхним валикам питающей и выпускной пар, зубчатому барабанчику и по отношению друг к другу.This goal is achieved by the fact that the exhaust device is equipped with a toothed drum installed with the wiring between the lower rollers of the feed and exhaust steam and under the exhaust toothed rollers; drum and in relation to each other.

Межцентровое рассто ние выт жных зубчатых валиков выполнено равным или меньще длины волокна.The center-to-center distance of the exhaust gear rollers is equal to or less than the fiber length.

На чертеже схематически изображен выт жной прибор.The drawing shows a schematic of the exhaust device.

Верхний питающий валик 1 имеет обрезиненную поверхность и смонтирован над нижним питающим валиком 2, поверхностьThe upper supply roller 1 has a rubberized surface and is mounted above the lower supply roller 2, the surface

Claims

which is made corrugated. The lower supply roller 2 is wired to the exhaust drum 4, which has a toothed surface; in turn, the upper supply roller 1 is wired to the rear rear roller 3. The rear waddles 3, the middle 5 and the front 6 are wired to each other to a friend and wired to the exhaust drum 4 and have a serrated surface. The serrated surface of the exhaust drum 4 and the exhaust rollers of the rear 3, middle 5 and front 6 can be formed by installing serrated ribbons or a set of toothed ring plates. The diameter of the exhaust rollers 3, 5 and 6 is not more than the length of the fiber, the center-to-center distance between them is less than the length of the fiber. The upper exhaust roller 7 is installed with wiring to the exhaust front roller 6 and is located above the lower exhaust roller 8, which in turn is installed with wiring to the exhaust drum 4. The upper exhaust roller 7 has a smooth rubber surface, and the lower exhaust roller 8 has corrugated surface. As a result of the simultaneous rotation of the upper feeding roller 1 and the lower feeding roller 2 with equal circumferential speeds (Vi Vt) and mutual pressing them together, a tape of fibrous material is fed to the exhaust drum 4, the speed of which Vi, due to which a stretch is formed ., 1, is a partial parallelization of the fibers due to the stretching and further forward movement of the resulting sliver. The rear exhaust roller 3 rotates at a peripheral speed Uz, with Vt Vs Vs Od. Due to the difference in speeds of exhaust 1, since Ud Uz. The middle exhaust roller rotates at a peripheral speed V5 V4, which allows the fibers to move forward beyond the contact area of the roller with the exhaust drum without drawing. The exhaust front roller 6 rotates at a peripheral speed Vs, resulting in a stretch ./ ,. Due to the fact that the distances between the centers of the rear exhaust roller 3, the middle exhaust roller 5 and the front exhaust roller 6 are equal to each other and less than the fiber length, the fibers passing through the EM and MH zones are permanently tensioned. However, compared to conventional exhaust devices, in which the distance between zones is greater than the length of the fibers, the integrity of the fibers does not deteriorate, since the fibers are tensioned by the teeth of the toothed surfaces of the rollers. A high-speed tooth is shifted and straightened in the direction of movement of the fiber relative to the teeth of toothed surfaces having a lower speed. In the AE zones on the supply side and on the output side, the analogous process also takes place with the only difference that the fibers in zones A and C are sandwiched between smooth elastic and rigid grooved surfaces, and in zone AE the fibers are combed out from point A to point E toothed the surfaces, in the HC zone, fibers from point H are pulled to point C from the zone of toothed surfaces along their movement, which provides a significant increase in their propagation and parallelization. The upper exhaust roller 7 and the lower exhaust roller 8 rotate at circumferential speeds Vy UY, and YT Y8 UB Y4, resulting in a stretch. Further, the parallelized and distributed mass of fibers leaves the exhaust device and can be sent, for example, to the bed spreading machine. The advantage of the proposed exhaust device is that its use on a carding machine or the first transfer of a tape machine will provide a degree of parallelism and spread of fibers more than 80%, which is equivalent to the degree of parallelization and spread of fibers after the second transfer of band masks. The resulting tape with high parallelization and straightening of the fibers makes it possible to exclude both ribbon transitions when producing medium yarn thicknesses, and when producing high yarn thicknesses, and thread yarns, one ribbon junction. Claim 1. Insertion device containing feed and discharge pairs of rollers and toothed rollers located between them, characterized in that, in order to increase the degree of ramification and parallelization of fibers in the tape, it is equipped with a toothed drum installed with a wiring between the lower rollers of the feed and exhaust steam and under exhaust toothed rollers; in this case, exhaust toothed rollers are mounted with wiring in relation to the upper rollers of the feed and exhaust steam, toothed drum and relative to each other.

2. The apparatus according to claim 1, characterized in that the center-to-center distance of the spur rollers is made equal to or less than the fiber length. Sources of information taken into account in the examination 1. "MESH AND TEXTIIBERICHTE, 1976, No. 5.