DE1068531B

DE1068531B -

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Publication number: DE1068531B
Application number: DENDAT1068531D
Authority: DE
Publication date: 1959-11-05

Description

DEUTSCHESGERMAN

Die Erfindung bezieht sich auf das Ausrichten von Textilmaschinenteilen, insbesondere auf das Ausrichten von Spulenschiffchen für Spinnmaschinen, und betrifft ein Verfahren und eine Vorrichtung, durch welche das Richten schnell und mit einem großen Grad an Genauigkeit durchgeführt werden kann.The invention relates to the alignment of textile machine parts, in particular to alignment of bobbin shuttles for spinning machines, and relates to a method and an apparatus by which straightening can be done quickly and with a great degree of accuracy.

Bekanntlich müssen die Spulen und Spulenschiffchen, da sie zwischen den Kettfäden hindurchlaufen müssen, um so dünner sein, je feiner das herzustellende Gewebe sein soll. Aus diesem Grunde müssen insbesondere die zur Herstellung von feinen Gewebe hoher Güte benutzten Spulen und Spulenschiffchen mit hoher Genauigkeit ausgerichtet werden. In Spitzenmaschinen werden Kämme verwendet, um die Spulenschiffchen zu führen, die genau gerade sein müssen, und jedes Abweichen von der geraden Ausrichtung dieser Kämme würde dazu führen, daß die Schiffchen nicht frei durch sie hindurchlaufen könnten.As is known, the bobbins and bobbin shuttles must, since they pass between the warp threads must be the thinner, the finer the fabric to be produced should be. For this reason, in particular the high quality bobbins and bobbins used to make fine fabrics Accuracy to be aligned. In lace machines, combs are used to hold the coil boats to guide, which must be exactly straight, and any deviation from the straight alignment of these ridges would lead to the fact that the boats could not pass freely through them.

Die Schiffchen und/oder die Spulen haben nur ein sehr geringes Spiel, wenn sie zwischen den Kettfäden hindurchlaufen und wenn die Spulen und Schiffchen nicht genau gerade sind, besteht die Gefahr, daß die Spule oder das Schiffchen einen Kettfaden mitreißt, wenn sie zwischen den benachbarten Kettfäden hindurchlaufen. The shuttle and / or the bobbins have very little play when they are between the warp threads run through and if the coils and boats are not exactly straight, there is a risk that the Bobbin or the shuttle pulls a warp thread with it when they pass between the adjacent warp threads.

Die Ausrichtung der Spulenschiffchen mit dem erforderlichen Grad an Genauigkeit stellt ein Problem dar, welches bisher nur unvollkommen und unwirtschaftlich gelöst worden ,ist. Es war bisher üblich, die Spulenschiffchen ausschließlich unter Anwendung dynamischen Druckes durch Hämmern zu richten. Diese Art der Ausrichtung ist nicht nur zeitraubend und unwirtschaftlich, sondern erlaubt auch nicht die Einhaltung der Toleranzen, die heutzutage zur Herstellung feiner Spitzen und zur Durchführung der erwünschten hohen Arbeitsgeschwindigkeiten gefordert werden.Aligning the bobbin with the required degree of accuracy poses a problem represents, which has so far only been solved imperfectly and inefficiently. It was previously common practice that To straighten coil boats exclusively by applying dynamic pressure by hammering. These The type of alignment is not only time consuming and uneconomical, but also does not allow compliance the tolerances that are used today to produce fine tips and to carry out the desired high working speeds are required.

Ziel der Erfindung ist es, das Richten von Textilmaschinenteilen, inbesondere von Spulenschiffchen, zu vereinfachen und die Toleranzen zu verkleinern, welche die ausgerichteten Teile nach der Bearbeitung aufweisen.The aim of the invention is to straighten textile machine parts, in particular coil boats Simplify and reduce the tolerances that the aligned parts after machining exhibit.

Zu diesem Zweck wird das Verfahren zum Richten von Spulenschiffchen für Spitzenmaschinen gemäß der Erfindung in der Weise durchgeführt, daß eine Vielzahl von Schiffchen hintereinander durch Beilagen voneinander getrennt in einer Presse einem statischen Druck ausgesetzt werden, in dieser Presse auf eine unterhalb der Glühtemperatur liegende, für das metallische Verformen ausreichende Temperatur gebracht werden und daß diese Teile in der Presse langsam abgekühlt werden.For this purpose, the method for straightening coil boats for lace machines according to FIG Invention carried out in such a way that a plurality of boats one behind the other by attachments are exposed to a static pressure separately in a press, in this press on a brought below the annealing temperature, sufficient temperature for the metallic deformation and that these parts are slowly cooled in the press.

Es ist zwar allgemein bekannt, Metallteile in einem Gesenk zwischen Matrize und Patrize unter Erhitzung auf die gewünschte Form zu bringen, wobei der zuIt is generally known to place metal parts in a die between the die and the male die with heating to bring to the desired shape, with the to

Verfahren und Vorrichtung
zum Richten von Spulenschiffchen
für SpitzenmaschinenMethod and device
for straightening coil boats
for top machines

Anmelder:Applicant:

John Jardine Limited,
New Basford, Nottingham
(Großbritannien)John Jardine Limited,
New Basford, Nottingham
(Great Britain)

Vertreter: Dipl.-Ing. C Wallach, Patentanwalt,
München 2, Kaufingerstr. 8Representative: Dipl.-Ing. C Wallach, patent attorney,
Munich 2, Kaufingerstr. 8th

Beanspruchte Priorität:
Großbritannien vom 28. Januar 1956Claimed priority:
Great Britain January 28, 1956

Thomas Henry Gooding, Stapleford, Nottingham
(Großbritannien),
ist als Erfinder genannt wordenThomas Henry Gooding, Stapleford, Nottingham
(Great Britain),
has been named as the inventor

bearbeitende Metallteil in dem Gesenk bis zur vollständigen Abkühlung verbleibt.metal part to be machined remains in the die until it has completely cooled down.

Es ist z. B. bekannt, zur Herstellung gebogener Klingen für Sicherheitsrasierapparate ein Gesenk zu benutzen, in welchem jeweils eine einzige Klinge auf die gewünschte Form gebracht wird. Eine derartige Eihzelausrichtung wäre für Spulenschiffchen unwirtschaftlich und scheidet deshalb für die Ausrichtung von Spulenschiffchen aus.It is Z. B. known to produce curved blades for safety razors to a die use, in which a single blade is brought to the desired shape. Such a one Single alignment would be uneconomical for coil boats and therefore separate for alignment from coil boats.

Es ist weiter bekannt, Blattfedern unter Einwirkung von Hitze in einem Gesenk auf ihre gewünschte Form zu bringen. Bei der Herstellung von Blattfedern ist es darüber hinaus üblich, in einer Vorrichtung mehrere Federn gleichzeitig zu biegen, zu welchem Zweck hintereinander eine entsprechende Anzahl von Gesenken angeordnet wird.It is also known to give leaf springs their desired shape under the action of heat in a die bring to. In the manufacture of leaf springs, it is also common to have several in one device To bend springs at the same time, for what purpose a corresponding number of dies one after the other is arranged.

Da für eine Spitzenmaschine zahlreiche Spulenschiffchen erforderlich sind, wäre die Anwendung eines Gesenkes der bekannten Bauart, bei dem jeweils nur ein Spulenschiffchen bearbeitet werden kann, äußerst unwirtschaftlich. Da andererseits die Spulenschiffchen nicht an allen Stellen gleich stark sind und insbesondere die Klinge, die einer besonderen Ausrichtung bedarf, dünner ist als die übrigen Teile, hat man bisher eine Richtung durch statischen Druck nicht für möglich gehalten und statt dessen ausschließlich Hämmerverfahren zur Formgebung angewandt.Since numerous bobbins are required for a lace machine, the application would be one Die of the known type, in which only one coil boat can be processed at a time, extremely uneconomical. On the other hand, since the coil boats are not equally strong in all places and in particular the blade, which requires special alignment, is thinner than the other parts, has been used up to now a direction through static pressure was not considered possible and instead exclusively hammering used for shaping.

909 647/230909 647/230

Claims

It has been shown that when the method according to the invention is used, good results are achieved when the bobbin cases fixed in the press are exposed to a temperature of about 450 ° C. for a period of 2 hours. S Similar results can be obtained if the bobbins fixed in the press are exposed to a temperature of about 300 ° C for 5 hours. It is clear that with the relatively long times required for alignment under the action of heat, individual processing of coil boats would be completely uneconomical. A device for carrying out the method is designed according to the invention in such a way that two shim plates are arranged next to each other between every two haunted boats in the press, of which the first plate is adapted to the main part of the boat and the second plate is adapted to the blade of the boat, and that the thickness of the second shim exceeds the thickness of the first shim by the amount by which the blade is thinner than the main part. According to an expedient embodiment of the invention, on the side facing the root of the blade, the shim has a radius of curvature which is somewhat larger than the radius of curvature of the blade root. This makes it easier to center the shims with respect to the shuttles. Further advantages and details of the invention emerge from the following description of an exemplary embodiment with reference to the drawing. In the drawing, FIG. 1 shows an exploded view of a plurality of tip machine coil boats and the associated shims, FIG. 2 shows a cross section of the parts shown in FIG. 1, FIG. 3 shows a plan view of shims and tip machine shuttles; Fig. 4 shows a plurality of textile machine parts according to the invention, clamped in a press. In the drawings, tip machine shuttles having a blade part 4 which is made in one piece with a main part 3 are separated from each other by blade shims 2 and main part shims 1. The blade shims 2 are of slightly greater thickness than the main part shims 1, so that the blade shims 2 and blade part 4 are essentially the same thickness as the main part 3 and the main part shims 1. The blade shims 2 have a curved surface for engagement with the curved Provided surface that separates the main part 3 from the blade part 4 of the shuttle, and this curved surface of the blade shim 2 is preferably of a slightly larger radius than the corresponding curved surface on the shuttle, which makes it possible, the blade shim 2 easier and more convenient compared to the To center shuttle. The shuttles are expediently provided with a spring end 5 which extends into the opening 10 of the aforementioned shuttle, in which the tip machine spool is fastened. A large number of shuttles are expediently separated from one another by the correct insertion of the main part shims 1 and blade shims 2 and then clamped in a frame 8 with essentially flat end plates 7. Each of the end plates 7 can be pressed onto its associated plate with the aid of a threaded spindle 9. In this way, the assembled boats and shims, which are denoted by 6 as the entire block in FIG. 4, can be subjected to a substantial final pressure by adjusting the threaded spindles 9 accordingly. The compressed press is then placed in an oven and the temperature brought to about 450 ° C over a period of about 2 hours. Satisfactory results have also been obtained with temperatures of about 300 ° C for a period of about 5 hours. The press is then removed from the oven and slowly allowed to cool down. After cooling, the pressure in the press is released and the boats with the shims are removed from it. The blades and, to a lesser extent, the majority of the boats are found to be straight. The main part shims 1 are expediently coated with a flow-preventing agent, for example with grease, graphite or oil, in order to prevent the soldering compound fixing the spring end 5 from sticking to the main part 3. Other textile machine parts can be aligned by the method according to the invention, and in particular combs of lace machines can be aligned by clamping a plurality of said combs between substantially precisely flat shim plates and clamping them in a press as described herein. The press and combs are then subjected to sufficient temperature to enable the parts to be aligned. It is clear that the term "exactly flat" should not be construed as optically flat, since such a degree of "flatness" is not normally necessary for textile machines for making fine fabrics. It is also shown that by aligning textile machine parts according to the invention a greater hardness is achieved and that parts that have been aligned according to this invention are not so easily bent again than parts that have been aligned with the methods previously used, such as for example by mechanical hammering. Patent claims:

1. A method for straightening coil boats for lace machines, characterized in that that a large number of boats in a row separated from each other by enclosures in one Press to be subjected to static pressure, in this press to a temperature below the annealing temperature lying, sufficient temperature for the metallic deformation and that these parts are slowly cooled in the press.

2. The method according to claim 1, characterized in that the bobbin set in the press exposed to a temperature of about 450 ° C for 2 hours.

3. The method according to claim 1, characterized in that the bobbin set in the press exposed to a temperature of about 300 ° C for 5 hours.

4. Device for carrying out the method according to claims 1 to 3, characterized in that