SU865470A1

SU865470A1 - Wire-drawing apparatus

Info

Publication number: SU865470A1
Application number: SU802873497A
Authority: SU
Inventors: Эдмундас Домо Кибиркштис; Пятрас Повилович Пашкявичюс; Казимерас Миколо Рагульскис
Original assignee: Каунасский Политехнический Институт Им. Антанаса Снечкуса
Priority date: 1980-01-22
Filing date: 1980-01-22
Publication date: 1981-09-23

Description

Изобретение относится к устройствам воле- ₍чения проволоки и может быть применено в технологическом процессе ее изготовления.The invention relates to devices vole- _(cheniya wire and may be applied in the process of its manufacture.

Известно устройство для волочения металла через две волоки, колеблющиеся в противоположных фазах вдоль оси волочения, содержащее вибратор продольных колебаний и два соосных волновода, один конец которого присоединен к вибратору, а на торце другого конца каждого волновода закреплена волока (1),A device is known for drawing metal through two fibers oscillating in opposite phases along the axis of drawing, containing a longitudinal vibrator and two coaxial waveguides, one end of which is attached to the vibrator, and a wire is fixed at the end of the other end of each waveguide (1),

Недостатками этого устройства является то, что трудно обеспечиваются центровка волок, а также перпендикулярность их торцовых поверхностей направлению волочения, что отрицательно влияет на качество изготовления проволоки.The disadvantages of this device is that it is difficult to align the dies, as well as the perpendicularity of their end surfaces to the direction of drawing, which negatively affects the quality of the wire.

Известно также устройство для волочения проволоки, содержащее стаканообразный корпус, Первую волоку, укрепленную в центре дна стакана, вторую волоку с волокодержателем, соосно первой волоке помещённую внутри корпуса (23. .A device for wire drawing is also known, comprising a cup-shaped body, a first die mounted in the center of the bottom of the glass, a second die with a fiber holder coaxially placed with the first die inside the case (23..

однако в этом устройстве из-за большой силы волочения быстро изнашивается волока, она не обеспечивает достаточную скорость волочения, волочение производится только при вертикальном положении оси волочения.however, in this device, due to the large drag force, the drag quickly wears out, it does not provide a sufficient drawing speed, and drawing is carried out only when the drawing axis is vertical.

Цель изобретения — создание более производительного устройства повышенной надежности, обеспечивающего качественное изготовление проволоки.The purpose of the invention is the creation of a more productive device with increased reliability, ensuring high-quality wire manufacture.

Поставленная цель достигается тем, что в устройстве для волочения проволоки, содержащем стаканообразный корпус, первую волоку, укрепленную в центре дна стакана, вто is рую волоку с волокодержателем, соосно первой волоке помещенную внутри корпуса, на внутренней стороне дна стакана вокруг первой волоки выполнен карман кольцеобразной формы, который закрыт торцовой поверхностью волокодержателя второй волоки, причем с внешней стороны'стакана кольцеобразный карман соединен с системой сжатого воздуха, а волокодержатель подпружинен относительно корпуса в осевом направлении.This goal is achieved by the fact that in the device for drawing wire containing a cup-shaped body, the first fiber reinforced in the center of the bottom of the glass, the second is a fiber with a fiber holder coaxially with the first fiber placed inside the housing, on the inner side of the bottom of the glass around the first fiber there is a ring-shaped pocket a shape that is closed by the end surface of the fiber holder of the second die, and from the outside of the glass, the annular pocket is connected to the compressed air system, and the fiber holder is spring loaded with a relative But the body in the axial direction.

На чертеже изображена конструкция устройства.The drawing shows the design of the device.

Устройство состоит из корпуса I, выполненного в виде стакана, на дне которого выточен карман 2 кольцеобразной формы, соединенный с помощью трех симметрично расположенных отверстий дросселя 3 с системой 4 сжатого воздуха.The device consists of a housing I, made in the form of a glass, at the bottom of which a pocket 2 of an annular shape is machined, connected using three symmetrically located openings of the throttle 3 to the compressed air system 4.

На дне стакана посажена первая волока 5, волокодержатель 6 с запресованной в нем второй волокой 7, которые к дну стакана прижимаются пружиной 8 и закрываются крышкой 9. Для выхода отработанного воздуха в стакане выполнено восемь радиально расположенных выхлопных отверстий 10.At the bottom of the cup, the first draw 5, a fiber holder 6 with a second draw 7 pressed in it, are planted, which are pressed against the bottom of the cup by a spring 8 and are closed by a cover 9. To exit the exhaust air, eight radially arranged exhaust openings 10 are made in the cup.

Работа устройства основана на механизме возбуждения автоколебаний в автоколебательных пневматических вибровозбудителях [3].The operation of the device is based on the mechanism of excitation of self-oscillations in self-oscillating pneumatic vibration exciters [3].

Устройство работает следующим образом.The device operates as follows.

При волочении прутка 11 сжатый воздух по воздухопроводящей системе 4 через дроссели 3 поступает в карман 2 кольцеобразной формы. При поступлении сжатого воздуха в карман 2 и зазор 12 давление в них повышается до тех пор, пока сила давлений аэростатической подвески преодолевает суммарную силу пружины и волочения, что ведет к образованию определенного зазора (Г (Ό . С увеличением зазора давление в кармане 2 и зазоре 12 резко падает, так как через кольцеобразные зазоры 12 и 13 и отверстия 10 выходит больше воздуха, чем поступает через три дросселя 3. С уменьшением давления в кармане 2 и зазоре 12 волокодержатель 6 перемещается в сторону уменьшения рабочего зазора (i’i.t) . Процесс циклично повторяетeg.When drawing the rod 11, compressed air through the air-conducting system 4 through the inductors 3 enters the pocket 2 ring-shaped. When compressed air enters pocket 2 and the gap 12, the pressure in them rises until the pressure force of the aerostatic suspension overcomes the total force of the spring and drawing, which leads to the formation of a certain gap (G (Ό. With an increase in the gap, the pressure in the pocket 2 and the gap 12 drops sharply, as more air flows out through the annular gaps 12 and 13 and the openings 10 than flows through the three chokes 3. As the pressure in the pocket 2 and the gap 12 decreases, the fiber holder 6 moves towards a decrease in the working gap (i'i.t) Qi process echoes repeatingly.

Таким образом устанавливается автоколебательный режим вдоль оси волочения, определяемый давлением воздуха, объемом карма865470 4 на 2 и диаметром дросселя 3, а также жесткостью пружины 8.Thus, a self-oscillating regime is established along the drawing axis, determined by air pressure, karma volume 865470 4 by 2 and throttle diameter 3, as well as spring stiffness 8.

Для обеспечения центровки второй волоки 7 волокодержатель 6 может совершать пере5 мешение в плоскости, перпендикулярной оси направления волочения. Величина этого пере'мещения определяется шириной кольцеобразного зазора 12. Кроме того, волокодержатель 6 может свободно совершать перемещение во10 круг оси волочения.To ensure the alignment of the second die 7, the fiber holder 6 can intermix in a plane perpendicular to the axis of the direction of drawing. The magnitude of this displacement is determined by the width of the annular gap 12. In addition, the fiber holder 6 can freely move around 10 around the axis of the drawing.

Claims

The invention relates to devices for hair, wire; and can be used in the process of its manufacture. It is known a device for drawing metal through two drawing holes oscillating in opposite phases along the axis of drawing, containing a longitudinal oscillation vibrator and two coaxial waveguides, one end of which is attached to the vibrator, and fixed at the end of the other end of each waveguide the fact that the centering of the fiber is laboriously ensured, as well as the perpendicularity of their end surfaces to the direction of drawing, which negatively affects the quality of the wire production. Wire dragging equipment containing a glass-like body. The first fiber attached to the center of the bottom of the glass, the second fiber with a fiber holder coaxially with the first wire placed inside the body (2b. However, in this device, because of the large force of the wire, the dies quickly wear out; sufficient speed of drawing, drawing is performed only with a vertical positive axis of the drawing. The purpose of this invention is to create a more productive device with increased reliability, ensuring the quality of wire production Loki. The set is achieved by the fact that in a drag wire device containing a glass-shaped body, a first fiber mounted in the center of the bottom of the glass, a second fiber with a fiber holder coaxially with the first portage located inside the body, on the inner side of the bottom of the glass around the first die expelled ring shaped pocket, which is closed by the end surface of the fiber hanger of the second portage, with an annular pocket connected to the compressed air system on the outside of the glass, and the fiber holder is spring-loaded relative to of the housing in the axial 11apravlenii. The drawing shows the structure of the device. The device consists of a body 1, made in the form of a glass at the bottom of which a pocket 2 is annularly shaped, connected using three symmetrically arranged throttle holes 3 with system 4 of compressed air. A first portage S is placed on the bottom of the cup, a fiber holder 6 with second dredge 7 pressed into it, which is pressed against the bottom of the cup by a spring 8 and closed by a lid 9. Eight radially arranged exhaust ports 10 are made to discharge the exhaust air in the cup 10. The device is based on the mechanism excitation of self-oscillations in self-oscillating pneumatic vibration exciters 3. The device operates as follows. When drawing the rod 11, the compressed air through the air duct system 4 through the throttles 3 enters the pocket 2 of annular shape. When compressed air enters the pocket 2 and the gap 12, the pressure in them increases until the pressure force of the aerostatic suspension overcomes the total force of the spring and drag, which leads to the formation of a certain gap (f (t).) As the gap increases, the pressure in the pocket 2 and the gap 12 drops sharply as more air flows out through the annular gaps 12 and 13 and the holes 10 than it enters through three throttles 3. With a decrease in pressure in pocket 2 and a gap 12, fiber holder 6 moves in the direction of decreasing the working gap (JCt). c This repeats the self-oscillating mode along the drag axis, determined by air pressure, volume 4 on 2 and throttle diameter 3, as well as spring stiffness 8. To ensure centering of the second die 7, fiber holder 6 can move in a plane perpendicular to the axis of the drawing direction The magnitude of this movement is determined by the width of the ring-shaped gap 12. In addition, the fiber holder 6 can freely move around the axis of dragging. Claims. A wire drawing device comprising a glass-like body, a first fiber attached in the center of the bottom of the glass, a second fiber with a fiber holder coaxially with the first wire placed inside the body, characterized in that, in order to increase the reliability of the device, the productivity and quality of manufacture of the wire on the inside Yes, the cup around the first die is made of a ring-shaped I-shaped pocket, which is closed by the end surface of the fiber carrier of the second die, and on the outer side of the cup is ring-shaped karma It is connected to a compressed air system, and volokoderzhatel podaruzhinen relatively in the axial direction of the body. Sources of information taken into account in the examination 1. USSR author's certificate number 329924, CL. B 21 C 1/00, 1972.

2. For Japan N 47, - 67405, cl. B 21 C 3/12, 1972.

3. USSR Author's Certificate No. 365173, cl. B 06 F 1/18, 1972.