SU903402A1

SU903402A1 - Weft brake to shuttleless loom

Info

Publication number: SU903402A1
Application number: SU792894441A
Authority: SU
Inventors: Вячеслав Михайлович Богаченков; Риорита Ивановна Харечко; Роман Дмитриевич Ефремов; Василий Данилович Головня
Original assignee: Украинский Научно-Исследовательский Институт Текстильной Промышленности
Priority date: 1979-12-11
Filing date: 1979-12-11
Publication date: 1982-02-07

Description

Изобретение относитс к текстильному машиностроению и предназначено дл использовани на бесчелночных ткацких станках.This invention relates to textile machinery and is intended for use on shuttleless looms.

Известен тормоз уточной нити к бесчелночному ткацкому станку, содержащий неподвижную тормозную пластину , кинематически св занную с приводом станка, лапку дл взаимодействи с тормозной пластиной и установленные по обе стороны от лапки направл ющие глазки дл уточной нити. Тормозна лапка состоит из трех частей, расположенных одна за другой по направлению движени уточной нити, .Глазки установлены на опорах пластины 1 .A weft thread brake to an shuttleless loom is known, comprising a stationary brake plate, kinematically connected to the machine drive, a foot for interacting with the brake plate and guide eyes mounted on both sides of the foot for the weft thread. The brake foot consists of three parts, one after the other in the direction of movement of the weft yarn,. The eyes are mounted on the supports of the plate 1.

Недостатки этого тормоза состо т в том, что поверхности торможени в местах взаимодействи с уточной нитью подвергаютс интенсивному износу с образованием канавок от воздействи уточной нити, которые,в свою очередь , повышают обрывность этой нити.The disadvantages of this brake are that the braking surfaces at the points of interaction with the weft thread undergo intense wear and tear with the formation of grooves from the weft thread, which, in turn, increase the breakage of this thread.

Наиболее близок к предлагаемому тормоз уточной нити к бесчелночному ткацкому станку, содержащий неподвижную тормозную пластину, кинематически св занную с приводом станка лапку дл взаимодействи с тормознойClosest to the proposed weft brake to a shuttleless loom, comprising a stationary brake plate, a foot connected kinematically to the machine drive, for interacting with the brake

пластиной и установленные по обе стороны от лапки направл ющие глазки , дл уточной нити, каждый из которых имеет прорезь дл ее заводки. Глазки установлены на опорах пластины 12.plate and mounted on both sides of the foot guiding eyes, for the weft yarn, each of which has a slot for its threading. The eyes are installed on the supports of the plate 12.

Однако в св зи с тем, что направл ющие уточную нить глазки установлены на опорах тормозной пластины на их тормозных поверхност х под However, due to the fact that the guide weft thread eyes are mounted on the supports of the brake plate on their brake surfaces under

to воздействием уточной нити по вл ютс канавки, повышгиощие обрывность уточной нити. Замена изношенных элементов тормоза требует выполнени трудоемких операций по его разборке The impact of the weft yarn appears grooves, increasing the breakage of the weft yarn. Replacing worn brake components requires time-consuming disassembly operations.

15 и сборке, что вызывает простои станка .15 and assembly, which causes machine downtime.

Целью изобретени вл етс увеличение срока эксплуатации тормоза.The aim of the invention is to increase the service life of the brake.

2020

Эта цель достигаетс тем, что Кс1ждый направл ющий глазок установлен на тормозной пластине и прижат к ней упругой скобой, охватывающей тормозную пластину и направл ющий This goal is achieved by the fact that X1 each guide eye is mounted on the brake plate and is pressed against it by an elastic bracket that covers the brake plate and guide

25 глазок, при .этом направл ющий глазок имеет паз дл одной из ветвей скобы, перпендикул рный направлению движени уточной нити.25 eye, with this guide eye has a groove for one of the branches of the bracket, perpendicular to the direction of movement of the weft yarn.

Сущность изобретени по сн етс BRIEF SUMMARY OF THE INVENTION

30thirty

где показано:where shown:

Claims

drawings, FIG. 1 schematically shows the proposed brake, general view; in fig. 2 is a perspective view of the brake in FIG. 3 - guide eye; in fig. 4 shows an embodiment of a staple. The weft yarn brake contains a brake plate 1 fixed in supports 2 and 3. Support 2 is made in the form of a two-arm lever and rests on the rod 4. Due to the force (indicated by the arrow), the brake on the plate 1 is in a tensioned state. The plate 1 has guide eyes 5 for the weft yarn 6, each pressed to the plate with its elastic brace 7. The eye 5 has a slot 8 for inserting the weft yarn into it and slot 9 for one of the branches of the brace 7, perpendicular to the direction of movement of the weft strands 6 The thread 6 is pressed against the brake plate 1 by a foot 10, fastened on the holder 11, kinematically connected with the machine guide (not shown). The guide eyes 5 are installed on the wallpaper of the sides of the legs 10. Thanks to this mounting of the eyes 5, it is possible to rearrange them both across and along direction 1 of the view and weft thread b. The elastic bracket 7 can be made of wire (Fig. 1 and 2) or of steel plate (Fig. 4). The brake works as follows. When the machine is turned on, the weft thread 6 is fed to the plotter with O11B by the tension, which, depending on the thickness and structure of the weft thread, is created by the impact of the foot 10. The thread passes through the guide eyes 5 under the foot 10 When the grooves are formed on the brake surfaces, the eyes 5 You can move across the movement of the weft yarn due to the groove 9, changing the place of its contact with the brake surfaces of the plate 1 and the tab 10. Depending on the type of yarn being processed, eyes 5 can be moved along the direction of movement of the yarn 6 that allows you to adjust the tension without loops in the area of the tab 10. Such a performance of the brake yarn allows you to increase its service life due to the fact that the entire area of the brake plate is used. This makes it possible to reduce the breakage of the yarn and reduce machine downtime for repair. The invention of the weft yarn brake to the shuttleless loom, comprising a fixed brake plate, a kinematically connected to the actuator foot for interacting with the brake plate and guiding eyes installed on both sides of the foot for the weft yarn, each of which has a slot for its insertion, different By the fact that, in order to increase its service life, each guide eye is mounted on the brake plate and pressed to it by means of an elastic bracket that covers the brake plate and the equal eye, while the guide eye has a groove for one of the branches of the bracket, perpendicular to the direction of movement of the weft yarn. Sources of information taken into account in the examination 1, Patent of the USSR 376951, cl. D 03 D 47/34, 1969.

2. The patent of the Federal Republic of Germany 1037380, cl. 86 C 14/05, 1959 (prototype).

Fig 2

- ft