SU945262A1

SU945262A1 - Safety device for rising motion of shuttles in shuttle-preparing stations

Info

Publication number: SU945262A1
Application number: SU777770035A
Authority: SU
Inventors: Готтфриед Борн
Original assignee: Комбинат Феб Виркмашиненбау (Инопредприятие)
Priority date: 1976-12-14
Filing date: 1977-11-14
Publication date: 1982-07-23
Also published as: DD129061A1; DD129061B1; CS195536B1

Description

Изобретение относится к ткацким станкам с многофазным зевообразованием, у которых выходящие из зева ¹челноки для их загрузки новой уточной нитью направляются на стационарные моталки, а от них - снова к зеву и предназначено для предохранения подъемного движения челноков при их подаче к моталкам и наоборот. **The invention relates to looms with multiphase shedding, in which ¹ shuttles emerging from the pharynx are sent to stationary winders for loading them with a new weft thread, and from them again to the pharynx and are intended to prevent the shuttles from lifting when feeding to the winders and vice versa. **

В патенте ГДР 119445 представлен и описан цикл передвижения челноков в ткацком автомате с многофазным зевообразованием. Челноки с помощью подъемных устройств подаются на моталки, а после загрузки уточной нитью. направляются с помощью транспортного валика к зеву.In the patent GDR 119445 presented and described a cycle of movement of shuttles in a weaving machine with multiphase shedding. Shuttles with the help of lifting devices are fed to the winders, and after loading with a weft thread. are guided by the transport roller to the pharynx.

Подъемные движения передаются с кулачковой шайбы через рычаг с роликом на используемый для подъема приводной вал, вращение которого в форме подъемного движения сообщается укрепленными на нем рычагами непосредственно подъемным устройством.Lifting movements are transmitted from the cam washer via a lever with a roller to the drive shaft used for lifting, the rotation of which in the form of a lifting movement is communicated by the levers mounted on it directly by the lifting device.

ЧЕЛНОКОВShuttles

Недостаток данного метода состоит в том, что между всеми участвующими в этом процессе элементами осуществляется жесткая передача усилий, что ₅ в случае заклинивания челноков или подобных отказов в процессе подъема и передачи челноков может привести к поломке деталей.The disadvantage of this method is that between all the elements involved in this process, a rigid transfer of forces is carried out, which ₅ in the case of jamming the shuttles or similar failures during the lifting and transfer of shuttles can lead to breakage of parts.

Цель изобретения - предотвращениеThe purpose of the invention is to prevent

1₀ поломок и повреждений деталей в случае возникновения неисправностей в процессе подачи челноков к стационарным моталкам или от них на транспортное устройство и повышение надежнос15 ти в эксплуатации ткацких автоматов с многофазным зевообразованием. Задачей изобретения является создание предохранительного устройства для подъемного движения челноков,1 ₀ breakdowns and damage to parts in the event of malfunctions in the process of supplying shuttles to or from stationary winders and to a transport device and increasing the reliability of operation of weaving machines with multiphase shedding. The objective of the invention is to provide a safety device for the lifting movement of the shuttles,

2Q т.е. для прерывания передачи усилия в случае возникновения неисправностей в процессе передвижения челноков на станции подготовки челноков.2Q i.e. to interrupt the transfer of force in the event of malfunctions in the process of moving the shuttles at the shuttle training station.

Цель достигается тем, что взаимодействующий с кулачковой шайбой рыз 945262 4 чаг с роликом снабжается предохранителем от. перегрузки. Этот рычаг с роликом наиболее целесообразно выполнять в виде двух рычагов, один из которых связан жестко, а другой - 5 подвижно с приводным подъемным валом, причем на неподвижном рычаге имеется защелка сцепления, упирающаяся в упор на стороне подвижного рычага, не обращенной к эксцентрику, а подвиж^Л0ный рычаг с предусмотренным на нем рабочим роликом упирается в упор на стороне неподвижного рычага, не обращенной к эксцентрику. Кроме того.., защелка сцепления нагружена пружиной, ¹⁵(усилие которой можно регулировать.The goal is achieved by the fact that the Ryz 945262 4 chag interacting with the cam washer with a roller is equipped with a fuse from. overload. This lever with a roller is most expedient to perform in the form of two levers, one of which is rigidly connected, and the other 5 is movably connected to the drive lifting shaft, and on the fixed lever there is a clutch latch, abutting against the stop on the side of the movable lever, not facing the eccentric, and ^A0 mobility ny lever roller provided with a work on it abuts the abutment on the fixed arm side not facing the eccentric. In addition .., the clutch latch is loaded with a spring ¹⁵ (the force of which can be adjusted.

В защелку упирается рычаг, с которым связан микровыключатель, воздействующий на работу станка.The lever rests against the latch, with which a microswitch is connected, which affects the operation of the machine.

На фиг. 1 изображено подъемное устройство с предохранительным устройством, вид сбоку, на фиг. 2 вид предохранительного устройства, на фиг. 3 “ предохранительное уст- ₂5 ройство в случае неисправности, вид сбоку.In FIG. 1 shows a lifting device with a safety device, side view, in FIG. 2 is a view of a safety device; FIG. 3 “safety device ₂ 5 device in case of malfunction, side view.

На приводном подъемном валу 1 подающего устройства укреплен рычаг 2. На том же самом приводном валу 1 _3(| подвижно установлен еще один рычагA lever 2 is mounted on the drive lifting shaft 1 of the feeding device. On the same drive shaft 1 _{3 (|} another lever is movably mounted

3. К рычагу 2 прикреплена защелка сцепления 4, которая натяжной пружиной 5 притягивается к упору 6 на рычаге 3. Другой конец натяжной пружины 5 подвешен в регулировочном винте ³⁵7, который угольником 8 прикреплен к рычагу 2. Рычаг 3 с помощью пружины (не показана),натягивается к вращающемуся эксцентрику 10 и имеет упор ную пластину 11, прилегающую к рыча- ⁴⁰гу 2. Переключающий рычаг укрепленного на рычаге 2 и воздействующего на цепь тока управления ткацкого станка с многофазным зевообразованием микро, 45 выключателя 13 при нормальном передвижении челноков прилегает к упору3. The clutch latch 4 is attached to the lever 2, which is pulled by the tension spring 5 to the stop 6 on the lever 3. The other end of the tension spring 5 is suspended in the adjusting screw ³⁵ 7, which is attached to the lever 2 by the angle 8. Lever 3 by means of a spring (not shown ) is pulled to the rotating eccentric 10 and has a stop-parallel plate 11, ⁴⁰ adjacent to rycha- gu 2. The switching lever reinforced on the lever 2 and acting on the loom control current circuit with multiphase shedding micro switch 13, 45 during normal movement Chelno s adjacent to the abutment

4. На приводном подъемном валу 1 укреплены рычаги 15, которые соединены с движками 16, несущими подъемное устройство. При нормальном передвиже- ⁵⁰нии челноков устройство подачи и отбора приводится эксцентриком через ходовой ролик 9 на подвижной рычаг 3, который с помощью упорной пластины передает сообщаемое эксцентрику 10 ⁵⁵движение на неподвижный рычаг 2 и поворачивает тем самым приводной вал 1 вправо.При этом неподвижный рычаг, опускаясь вниз, захватывает движки 16, в результате чего подъемное устройство возвращается в исходное положение.4. On the drive lifting shaft 1, levers 15 are attached, which are connected to the sliders 16 carrying the lifting device. In normal SRI peredvizhe- ⁵⁰ shuttles feeding and selection device is driven through the eccentric ball bearing 9 on the movable arm 3, which by means of the thrust plate 10 transmits imparted to the eccentric ⁵⁵ on the stationary motion lever 2 rotates and thereby drive shaft 1 vpravo.Pri this fixed arm , falling down, captures the engines 16, as a result of which the lifting device returns to its original position.

Сообщаемое эксцентриком движение также воспринимается ходовым роликом 9 и подвижным рычагом 3 и через упор 6 и защелку сцепления 4, нагруженную усилием пружины, длину которой можно устанавливать с помощью регулировочного винта 7, переносится на неподвижный рычаг 2. Рычаг 2 поворачивает приводной вал 1 влево и передвигает¹вверх движки 16, а-вместе с ними и подъемное устройство.The movement communicated by the eccentric is also perceived by the running roller 9 and the movable lever 3 and through the stop 6 and the clutch latch 4, loaded with a spring force, the length of which can be set using the adjusting screw 7, is transferred to the fixed lever 2. The lever 2 rotates the drive shaft 1 to the left and moves ¹ up the engines 16, and, together with them, a lifting device.

Переключающий рычаг 12 при этом упирается в упор 14, из-за чего цепь управления замыкается через микровыключатель 13.The switching lever 12 then abuts against the stop 14, due to which the control circuit closes through the microswitch 13.

В случае возникновений неисправностей при подаче или отборе челноков, возникает· повышенное сопротивление вращательному движению приводного подъемного вала 1. Это сопротивление становится большим, чем предварительно устанавливаемое удерживающее усилие пружины 5 между защелкой сцепления 4 на неподвижном рычаге 2 и упором 6 на подвижном рычаге 3· Установленное удерживающее усилие преодолевается и подвижной рычаг 3 передвигается под воздействием усилия от эксцентрику 10 без какой-либо передачи движения через рычаг 2 на приводной подъемный вал 1.In the event of malfunctions during the feeding or selection of the shuttles, there is an increased resistance to the rotational movement of the drive lifting shaft 1. This resistance becomes greater than the pre-set holding force of the spring 5 between the clutch latch 4 on the fixed lever 2 and the stop 6 on the movable lever 3 · Installed the holding force is overcome and the movable lever 3 moves under the influence of the force from the eccentric 10 without any transmission of movement through the lever 2 to the drive lifting shaft 1.

В результате поворота защелки сцепления 4 упором 14 при преодолении удерживающего усилия освобождается переключающий рычаг 12, в результате чего размыкается цепь тока управления и ткацкий автомат с многофазным зевообразованием останавливается.As a result of the rotation of the clutch latch 4 with an emphasis 14, when overcoming the holding force, the switching lever 12 is released, as a result of which the control current circuit is opened and the weaving machine with multiphase shedding stops.

Claims

(St) SAFETY DEVICE FOR HOISTING MOTION shuttles TO STATIONS OF PREPARATION The present invention relates to weaving looms with multiphase shedding whose exiting the throat shuttles for their loading a new weft yarn are directed to the stationary winder, and from them - again toward throat and designed for to protect the lifting movement of the shuttles when they are fed to the winders and vice versa. The GDR patent introduces and describes a shuttle movement cycle in a weaving machine with multiphase shedding. The shuttles are fed to the winders with the help of lifting devices, and after loading with a weft thread, they are guided by means of a transfer roller to the throat. The lifting movements are transmitted from the cam washer via a roller lever to a drive shaft used for lifting, the rotation of which in the form of a lifting motion is connected by levers fixed on it directly by a lifting device. SHUTTERS The disadvantage of this method is that between all the elements involved in this process there is a hard transfer of force, which in case of shuttling of shuttles or similar failures in the process of lifting and transfer of shuttles can lead to breakage of parts. The purpose of the invention is to prevent breakdowns and damage to parts in the event of malfunctions in the process of supplying shuttles to or from stationary winders on a transport device and improving the operational reliability of weaving machines with multiphase shedding, formation. The object of the invention is to provide a safety device for lifting the shuttles, i.e. to interrupt the transmission of forces in the event of malfunctions in the process of moving the shuttles at the shuttle training station. The goal is achieved in that the lever with the roller interacting with the cam washer is supplied with a safety device against. overload. This roller lever is most expediently performed in the form of two levers, one of which is rigidly connected, and the other movably with a driven lifting shaft, and on the fixed lever there is an attachment latch abutting against the side of the movable lever not facing the eccentric , and the mobile lever with the working roller provided for it rests against the stop on the side of the fixed lever that is not facing the eccentric. In addition, the clutch latch is loaded with a spring (the force of which can be adjusted. A lever rests on the latch, which is connected to the microswitch acting on the machine. In Fig. 1 a lifting device with a safety device is shown, side view, in Fig. 2 a safety device device, in Fig. 3, a safety device in the event of a malfunction, side view. Lever 2 is fixed on the drive lifting shaft-1 of the feeding device. On the same drive shaft 1, another lever 3 is movably mounted. Lever 2 is attached to the lever 2. and the clutch latch k, which is tensioned by the tension spring 5, is pressed against the stop 6 on the lever 3. The other end of the tension spring 5 is suspended in the adjusting screw 7, which is attached by an angle 8 to the lever 2. The lever 3 is attached by a spring (not shown) to the rotating eccentric 10 and has a pinch plate 11 adjacent to the lever 2. The switching lever fixed on the lever 2 and acting on the control circuit of the weaving machine with a multiphase shedding micro switch 13 with normal movement of the shuttles is adjacent to the stop 4. On Driving lifting shaft 1 fortified levers 15, which are connected to the sliders 1b, carrying lifting. device. During normal movement of shuttles, the feed and take-off device is driven by an eccentric through a roller 9 to a movable lever 3, which with the help of anvil plate 11 transfers the eccentric 1 transmitted to the stationary lever 2 and thereby turns the drive shaft 1 to the right. downward, it captures the sliders 16, as a result of which the lifting device returns to its original position. The movement reported by the eccentric is also perceived by the roller 9 and the movable lever 3 and through the stop 6 and the clutch latch k loaded by spring force, the length of which can be set using the adjusting screw 7 is transferred to the fixed lever 2. Step 1 turns the Drive shaft 1 to the left and moves upward the engines 16, and together with them the lifting device. The switching lever 12 then rests against the stop, which causes the control circuit to close through the microswitch 13. In the event of malfunctions in the supply or selection of the shuttles, an increased resistance to rotational movement of the drive shaft 1 occurs. This resistance becomes greater than previously settable retaining force of the spring 5 between the clutch latch C on the fixed lever 2 and the stop 6 on the movable lever 3 The established holding force is overcome and the movable moving lever 3 Under the influence of force from the eccentric, 10 without any transmission of movement through the lever 2 to the drive lift shaft 1. As the clutch latch 4 turns by stopping, the switching lever 12 is released when the holding force is overcome, resulting in the opening of the control current circuit and the weaving machine multiphase gassing stops. Claim 1. Safety device for lifting the shuttles at the shuttle preparation stations in weaving machines with multi-phase yawning and stationary winders, as well as with elevators controlled from the eccentric through the levers with the rollers to feed the shutters from the mouth to Coilers and back, characterized in that the lever with the cam lever with the roller is provided with an overload safety device.

2. The device according to claim 1, wherein the lever with the roller consists of one fixed and one movable lever located on the drive shaft, so that the fixed lever is provided with a clutch latch abutting against the movable lever, not facing the eccentric, and the movable lever is equipped with a roller 2 and an anvil plate rests on the fixed lever on the side not facing the eccentric.

3. The device according to claim 1 and 2, distinguished from the fact that the clutch latch is loaded with a spring, the force of which can be adjusted. k. Device on PP. 1-3, in which it is possible that the switching lever rests against the clutch latch, with which a microswitch acting on the operation of the machine is connected.