SU577266A1

SU577266A1 - Thread tensioning and take-up device for knitting machine

Info

Publication number: SU577266A1
Application number: SU7502183997A
Authority: SU
Inventors: Александр Семенович Миллер; Мери Абрамовна Субоцкиене
Original assignee: Латвийский Научно-Исследовательский Институт Легкой Промышленности (Лат.Ниилп)
Priority date: 1975-10-27
Filing date: 1975-10-27
Publication date: 1977-10-25

Description

I . .I. .

Иэрбретенио относитс к трикотажному машивостроенкю н может быть использова но дл нат жени и выборки нити на илоскофанговых и котонных машинах.Iberbretenio refers to the knitted machine suit and can be used to pull and pull the yarn on the sawn cotton and cotton machines.

Известно пневматическое устройство дл нат жени и выборки ниТи на трикотажной машине, содержашеэ присоединенную к пневмосистеме Трубу пр моугольного сечени с поршнем, взаимодействующим t нитью,. вьь полнёкным в виде Легкого кольиа с каКавкой дл охвата Нктьк fl . .A pneumatic device for tensioning and hauling a thread on a knitting machine, which is connected to a pneumatic system with a rectangular tube with a piston that interacts with a thread, is known. Light as a light stakes with kakavka to cover Nktk fl. .

Такое ycTpofictBo осуществл ет выборку нити, но приводит к дополштельным колебани м нат жени нити на выходе из устройства . Это обь сцйетс тем, что при прохожAeiittji узлов и сукрутии. нити, поршень (в процессе «еремещенй относиТ.ельно стенок трубы) перекашиваетс и третс о «их. Кроме 1 ого, запрамка нйч-и (|шрвонач1а/1ьна или при обрыва ее) (иоДжнаооцровождатьс подн тнем поршн , MJJH чего в устройстве переключаетс Hunpaivieiiue воздушного noTOKia с помощью Присноеоб;1ени , усложи юш его конструкцию рассматриваемого пневматичйского устройсгна. Заправку нити можно осушествл ть только с. помощью специального крючка.This ycTpofictBo selects the thread, but leads to additional variations in the tension of the thread at the exit of the device. This is due to the fact that with the passage of Aeiittji nodes and sukrutii. the threads, the piston (in the process of “moving relative to the walls of the pipe”) are warped and cut about them. In addition to the 1st, the nayfrak is locked (| shrvonacha1a / 1na on or when it is broken) (I’m horned by raising the piston; with only a special hook.

Целью изобретени вл етс повышение стабилизации нат жени нити.The aim of the invention is to increase the stabilization of the thread tension.

Дл достижени этой цели предлагаетс пневматическое устройство дл нат жени и выборки нити на трикотажной машине, со держащее щелевое соапо, присоединенное к пневмосистеме, нитенаправители и свободно вращающийс ролик с канавкой дл охвата размещени нитью, установленный перед соплом. Расположение ролика, закрешшнного на оси перед соплом, по сравнению с подвижным поршнем в трубе пр моугольного сечени , позвол ет стабилизировать нат жение нити и, тем самым, улучшить ее Динамику, так как исключаетс трении ролика о стенки трубы и св занные с этим клебани нат жени нити.To achieve this goal, a pneumatic device for tensioning and hauling a yarn on a knitting machine is offered, containing a slotted joint attached to a pneumatic system, thread guides and a freely rotating roller with a groove to cover the thread placement, mounted in front of the nozzle. The arrangement of the roller locked on the axis in front of the nozzle, as compared with the movable piston in the rectangular tube, allows the thread tension to be stabilized and, thus, improves its dynamics, since the roller is rubbed against the pipe walls and associated heels of thread.

. На фиг. 1 изображена схема iipoA/j мого устройства; на фиг. 2 - видно -. ке А на фиг. 1; «а фиг. 3 - фиг. 1.. FIG. 1 is a diagram of an iipoA / j device; in fig. 2 - visible -. ke A in FIG. one; “And FIG. 3 - FIG. one.

Claims

A hardware device for the mat; to the scientific research institute and thread sampling for knitwear M “UJJ., Contains a slotted nozzle 1 with eyes 2 connected to the pneumatic system. A light roller 4c is installed in front of the rim 1 with a thread groove groove, free-swinging on a fixed axis 5. The device operates as follows. Rolling off the reel 6, the thread 7 passes the thread guide 8, the brake device 9, the thread guide 10 to tucks in the eyes 2. Next, the thread 7 bends around roller 4, and the passage through the other eye 2 goes to the needles of the knitting machine. In the process of thread consumption by the machine due to the force of the thread on the roller reamer, the latter rotates on cx and 5. At the time of reversing the yarn guide, the excess 7 pins 1 are drawn into the slotted nozzle (shown in Fig. 1). Roller 4, this last stop is stopped. Installing the roller in front of the nozzle of the fixed axis instead of placing its nozzle eliminates the friction of the roller on the & wall, causing additional fluctuations in the tension of the thread being processed. Improving the dynamics of the thread contributes to a decrease. its breakage and increase the uniformity of the looped structure of the web produced on. In addition, the installation of the roller in front of the nozzle makes it possible to reduce the cross section of the latter compared to a rectangular tube, since the internal dimensions of the nozzle should ensure the free passage of only the filament, and not the piston covered by the filament. This reduces the pressure loss in the nozzle. Threading in the proposed device is much simpler, as there is no need to switch the air flow, which is especially important when processing several threads using a single pneumatic system. The test of the proposed device on the domestic flat-fang machine of the PVPEM type in comparison with the existing spring compensator showed that the average level of thread tension in front of the needles decreases by 20-25%, and its oscillations decrease by 26-35%. The resulting reduction in thread yarn and web breakage for this reason allows an increase in labor and equipment productivity by 1.3%. Claims 1. Tensioning device and thread sampling for knitwear containing co-ods 11 with one compartment wiring system, laying trays ,. a tl and cha ee so. that in order to increase the stabilization of the wilderness, oao kmzet native, freely installed on the axle on the secondary school 16 and at the exit of the nozzle between the kitten mm and mm.

2. The device according to claim 1, wherein the roller has a groove for the inserted yarn. Sources of information taken into account in the examination: ..

3. Author's certificate. USSR number 36836O, cl. JD 04 B 15/44, 1971.

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