DE29919C

DE29919C - Disengagement device on mechanij see looms

Info

Publication number: DE29919C
Application number: DENDAT29919D
Authority: DE
Original assignee: J. VON DEN BERG in M.-( Gladbach
Anticipated expiration: 1904-04-17

Description

KAISERLICHESIMPERIAL

PATEfPATEf

KLASSE 86: Weberei.CLASS 86: Weaving.

Reifst bei einem arbeitenden mechanischen Webstuhl der Schufsfaden, so wird bekanntlich die Ausrückung des Webstuhles durch den sogenannten Schufswächter bewirkt. When the thread ripens on a working mechanical loom, it is well known the disengagement of the loom caused by the so-called Schufswächter.

Letzterer besteht in den meisten Fällen aus der üblichen Schufswächtergabel a, Fig. 1, 2 und 3, und dem um e drehbaren Arm b, Fig. 3, welcher letztere, wenn der Schufsfaden gerissen oder zu Ende gegangen ist, den Ausrückhebel ζ aus seiner Stellung bei arbeitendem Stuhl, Fig. 3, herausdrückt. Der Ausrückhebel ζ schnellt dann vermöge seiner Federkraft in seine Stellung bei stillstehendem Stuhl und rückt dadurch, da er mit der Riemengabel des Treibriemens verbunden ist, letzteren von der festen Scheibe auf die Losscheibe. Der Ausrückhebel ζ wird in seinen beiden Stellungen durch einen in üblicher Weise in dem verlängerten Brustbaum angeordneten Schlitz d (s. Fig. 3) arretirt.The latter consists in most cases of the usual Schufswächter fork a, Fig. 1, 2 and 3, and the rotatable about e arm b, Fig. 3, which the latter, when the weft thread is broken or ran out, the release lever ζ from his Position with working chair, Fig. 3, pushes out. By virtue of its spring force, the release lever ζ then snaps into its position when the chair is stationary and, as it is connected to the belt fork of the drive belt, moves the latter from the fixed pulley onto the loose pulley. The release lever ζ is locked in its two positions by a slot d (see Fig. 3) arranged in the usual way in the elongated chest tree.

Die so bewirkte allgemein bekannte Ausrückung des arbeitenden Webstuhles hat erfahrungsmäfsig das sofortige Stillstehen des Stuhles, wie es wünschenswerth wäre, nicht zur Folge, da die lebendige Kraft der in Bewegung befindlichen Theile des Stuhles so grofs ist, dafs der Stuhl immer noch 3 bis 4, manchmal sogar bis 7 Touren macht. Der Weber ist dann genöthigt, um den gerissenen Schufsfadea aufzusuchen, den Webstuhl um ebenso viel Touren zurückzudrehen, um die hinter der Bruchstelle des Schusses eingewebten Fäden ausziehen zu können, da sonst namentlich bei feineren und gemusterten Geweben Fehlstellen entstehen. Ferner mufs der Weber die Spannung der Tuchwalze und des Garnbaiimes ändern, wobei Unregelmäfsigkeiten im Gewebe fast unvermeidlich werden. Der Zeit- und Materialverlust (letzterer entsteht durch das Ausziehen der Fäden), welcher hierdurch entsteht, ist namentlich bei lose gedrehtem Schufs, der sehr leicht reifst, grofs.The generally known disengagement of the working loom brought about in this way is based on experience the immediate standstill of the chair, as it would be desirable, does not result, since the living force of the movement the parts of the chair located there is so large that the chair is still 3 to 4, sometimes even makes up to 7 tours. The weaver is then compelled to round the shattered Schufsfadea to seek out, to turn the loom back as many turns as the one behind the The breaking point of the weft to be able to pull out woven threads, otherwise by name finer and patterned fabrics create imperfections. Furthermore, the weaver has to tension the cloth roller and the yarn structure change, whereby irregularities in the tissue become almost inevitable. The time and Loss of material (the latter is caused by pulling out the threads), which occurs as a result, is particularly large in the case of loosely twisted creations which ripen very easily.

Diese Uebelstände, welche daraus resultiren, dafs der Stuhl nach dem Signalisiren des Fadenbruches durch die Schufswächtergabel noch 3 bis 7 Touren macht, zu vermeiden und ein sofortiges Stillstehen des Webstuhles beim Reifsen des Schufsfadens, oder wenn derselbe zu Ende gegangen ist, zu erreichen, ist der Zweck der vorliegenden Erfindung.These evils, which result from the fact that the chair after signaling the Thread breakage through the Schufswächter fork still makes 3 to 7 tours to avoid and an immediate standstill of the loom when the thread ripens, or when the same has come to an end is the purpose of the present invention.

Es ist klar, dafs ein sofortiges Stillstehen des Stuhles nach erfolgtem Ausrücken stattfinden wird, wenn die lebendige Kraft der in Bewegung befindlichen Theile des Stuhles direct nach dem Ausrücken gleich Null gemacht werden kann. It is clear that the chair comes to a standstill immediately after it has moved out when the living force of the moving parts of the chair is direct after disengagement can be made equal to zero.

Im vorliegenden Falle wird dies durch die Wirkung eines Hebelsystems erreicht, welches, sobald der Schufswächter den Fadenbruch signalisirt und den Stuhl ausgerückt hat, die auf beiden Seiten des Webstuhles befindlichen Frösche (Anschläge), welche, wie bekannt, bisher nur den Zweck hatten, den Stuhl · auszurücken, wenn der Schützen nicht bis in den Schützenkasten gelangte, so hoch hebt, dafs die Weblade bei ihrem Vorwärtsgang an dieselben anstofsen mufs. Das Hochheben der Frösche geschieht in der Zeit, wo die Weblade gleich nach erfolgtem Ausrücken des Stuhles durch den Schufswächter zurückgeht, und bei darauf folgendem Vorgehen der Weblade stöfst dieselbe an die Frösche an und der Stuhl stelltIn the present case this is made possible by the Effect of a lever system achieved, which as soon as the Schufswächter signals the thread break and disengaged the chair on either side of the loom Frogs (attacks), which, as is known, had so far only been used to move the chair out, if the rifleman did not get into the rifle box, raise it so high that it was the sley must be attached to the same as it moves forward. The lifting of the Frogs happens in the time when the sley is immediately after the chair has moved out goes back by the Schufswächter, and with the following proceeding pushes the sley the same to the frogs, and the chair stands

Claims

quiet. So he only did one tour, whereas he used to do 3 to 7 tours before it came to a complete standstill.

The mechanism causing the lifting of the frogs is shown in FIG. 6 for clarity shown on their own. It is constructed as follows:

The frogs attached to both sides of the loom no longer consist of a single piece, as before, but of two parts, a fork-shaped m and a movable middle part m ¹ inserted into this fork, Figs. 3 and 4. The part m ¹ is rotatable about a pin m * in the fork m and is provided downwards with a knee-shaped extension »z ³ , against which the laterally bent end of the lever g rests. The two levers g are mounted on a common shaft / which is rotatably mounted in the frame of the chair.

The shaft / also carries on its one end (right) a lever h, which rests on the angle lever k rotatable about bolt i . The upper end of this angle lever k rests against arm b of the Schufswächter fork α , FIGS. 1 and 3.

If now who created thread will mature or is ended, causes that created guard fork α in a known manner, a movement of the arm B to the left, Fig. Ι (direction of the arrow, ■ Fig. 3), and thereby shifts the transmission belt of the solid on the loose disk. The arm b also causes, since the lever k rests against it, a rotation of this angle lever k in the direction of the arrow, FIG. 1; Angle lever k rotates lever h to the right, Fig. 1, and this causes, since it is firmly connected to the shaft /, a rotation of the lever g also to the right and thereby a lifting of the movable frog parts m '. These frog parts m 'are raised so high that the arms x attached to the sley, which have been raised somewhat by the shooter who has arrived in the gunbox and the levers y , hit the frogs m ^1.

The living force of the sley, as well as of the moving parts of the chair in general by this impact of the sley on the frogs so far destroyed that the sley only remains can return to its rear position and then stand absolutely still. .

The weaver can then immediately find the broken Schufs.

During the shedding after the yarn breakage has been indicated by the Schufswächter fork a, i.e. during the time in which the sley moves back, forwards and back again after the weft yarn has broken (whereupon it comes to a standstill), the transport cone o, Fig. I, now has the ratchet wheel η, which is connected to the cloth roller by means of a gear transmission and thus winds up the finished fabric, transports it further.

This would result in a stripe b.ezw. create a thin spot if the cloth roller were not slackened at this moment.

This slackening of the cloth roller is now shown by another, especially shown in FIG Mechanism does the following:

If the lever h moves to the right, FIG. 1, it also presses the lever /, which is rotatable at s, to the right, since 'this is in contact with h with its lower resilient end /'. The lever p is also provided with a triangular projection / ² , Fig. 5, against which the release lever ζ strikes after it has been disengaged from its position Fig. 3 by the arm b and by virtue of its spring force in its position - when stationary Chair snaps back. The release lever ζ thereby pushes the lever / even further to the right and thereby also turns the lever t attached to the shaft ί to the right. The lever t engages under the locking cone r, which is connected to the loading disk q of the transport cone 0 . If the lever t is now turned to the right, then it lifts the locking cone r and, by means of q, also the transport cone ο at the same time, thereby bringing it into engagement with n. '

Once this has happened, the cloth roller can snap back by as much as the pawl ν allows. The stroke of this pawl v, which is connected to the frame of the chair by a fixed arm, can be regulated appropriately by a screw at u, Fig. 8.

P ATEN τ-An s ρ ruch:

A disengagement device on mechanical looms, which causes the drawer to come to a standstill immediately when the transfer of the drive belt to the loose pulley has taken place due to the absence of the weft thread in front of one of the leaf ends, and which means that the otöfservoreinrichtung usual for the absence of protection is in use assumes that a middle element of the catching block fm ¹ J is lifted from the antenna fork.

For this purpose I sheet drawings.