DE174163C

DE174163C -

Info

Publication number: DE174163C
Application number: DENDAT174163D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Erfindung betrifft eine Klebstoff-Auftrag- und Ausstreichvorrichtung für Maschinen zur Herstellung endloser Papierhülsen, wie sie z. B. in der Zigarettenindustrie benutzt werden. Im besonderen besteht die Erfindung darin, daß der Klebstoff nicht wie bisher als flacher breiter Strich, sondern in Form eines z. B. dreieckähhlichen Querschnitt besitzenden Fadens nahe dem Rande der Papierkante durch eineThe invention relates to an adhesive application and spreading device for machines for the production of endless paper tubes, as they are, for. B. used in the cigarette industry. In particular, the invention consists in the fact that the adhesive is not as flat as before broad line, but in the form of a z. B. triangular cross-section owning thread near the edge of the paper through a

ίο Rillenscheibe oder sonst geeignete Mittel, z. B.ίο pulley or other suitable means, e.g. B.

. eine einer Schmierpresse ähnliche Vorrichtung mit feiner röhrchenförmiger Austrittsöffnung, aufgetragen wird. Diese Auftragung bietet den Vorteil, daß der Klebstoff auf dem Papier bis zur Ausstreich- oder Schließvorrichtung in völlig klebfähigem Zustande erhalten bleibt und demzufolge eine überall dicht schließende Klebnaht erzielt wird, während der in Form eines flachen Striches aufgetragene Klebstoff. a device similar to a grease gun with a fine tubular outlet opening, is applied. This application has the advantage that the adhesive on the paper remains in a completely adhesive condition until the spreading or closing device and consequently an all-over tightly fitting adhesive seam is achieved while in shape glue applied in a flat line

ao von dem Papier meist an vielen Stellen schon vor dem Hindurchgang durch die Nahtschließvorrichtung so aufgesaugt worden ist, daß das Papier runzelig wird und eine vielfach aufklaffende Klebnaht entsteht.ao of the paper mostly in many places before it passes through the seam closing device has been so absorbed that the paper becomes wrinkled and often gaping Glued seam is created.

Um nun den erhaben aufgetragenen Klebstoff zwecks Schließens der Hülsennaht auszustreichen und gleichzeitig den Hülsenstrang ohne Verdrücken oder Beschädigen der Naht vorwärts zu bewegen, genügt die bisher bei Klebnaht - Schließvorrichtungen verwendete Gummirolle nicht, einesteils, weil sich ihre wirkende Fläche schwer in die erforderliche Form bringen läßt und anderenteils, weil die Abnutzung der Gummirolle sehr schnell erfolgt und eine so große ist, daß sie sehr oft gegen eine neue ausgewechselt werden muß, was natürlich große Kosten verursacht. Es kommen daher der Erfindung gemäß für das Ausstreichen des Klebstoffes bezw. das Schließen der Hülsenklebnaht und das Fortbewegen des Hülsenstranges zwei Metallrollen zur Verwendung, von denen die eine wie bei zum Zusammenschließen gefalzter Hülsen dienenden Vorrichtungen in dem Form- und Führungsdorn für den Hülsenstrang drehbar gelagert, aber nicht wie bei genannten Vorrichtungen mit gezahnter, sondern mit glatter Umfläche versehen ist, auf die die Hülsenklebnaht durch die andere Rolle aufgedrückt wird; diese Rolle ist im Gegensatz zu der bei Falznaht-Schließvorrichtungen mit einem oder mehreren'vorstehenden gezahnten Ringen versehenen Rolle mit einer dem Querschnitt des Hülsendornes entsprechend ausgedrehten glatten Rille versehen. Infolgedessen drückt die Rolle nicht nur auf die Hülsenklebnaht, sondern legt sich auch noch auf einen größeren Teil der Hülsenaußenfläche so auf, daß nicht allein der Klebstoff ausgestrichen und die Klebnaht überall dicht und faltenlos geschlossen, sondern auch der Hülsenstrang mit Leichtigkeit ohne Beschädigung vorwärts bewegt wird. Erwähnt sei noch, daß die Wirkung der in der angegebenen Weise ausgeführten Ausstreichoder Schließrollen eine so große sein muß, daß ' sie die übereinander gelegten Hülsenränder schon ohne Zwischenbringen von Klebstoff in fast unlösbarer Weise zusammenschließen, wofür Gummirollen nicht genügen würden.In order to now spread out the raised adhesive for the purpose of closing the sleeve seam and at the same time moving the tube strand forwards without crushing or damaging the seam, that was enough up to now Glue-seam locking devices did not use rubber rollers, partly because their Acting surface can be difficult to bring into the required shape and on the other hand, because of the wear and tear The rubber roller takes place very quickly and is so large that it very often hits one new must be replaced, which of course causes great costs. It come from there according to the invention for spreading the adhesive BEZW. the closing of the sleeve seam and the advancement of the tube strand two metal rollers for use, one of which as at for locking together Folded sleeves serving devices in the form and guide mandrel for the tube strand rotatably mounted, but not as with the mentioned devices with toothed, but is provided with a smooth surface onto which the sleeve weld is pressed by the other roller will; this role is in contrast to that of seam closing devices with a or several 'protruding toothed rings provided roller with the cross-section of the sleeve mandrel is provided with a correspondingly machined smooth groove. As a result, pushes the roll not only on the sleeve joint, but also on a larger one Part of the outer surface of the sleeve in such a way that not only the adhesive is spread out and the adhesive seam Closed tightly and wrinkle-free everywhere, but also the tube strand with ease is moved forward without damage. It should also be mentioned that the effect of the in The spreading or closing rollers carried out in the manner indicated must be so large that ' they put the sleeve rims on top of one another in place without the interposition of glue join together almost inexorably, for which rubber rollers would not suffice.

Claims

The subject of the invention is shown in an exemplary embodiment in the drawing. Fig. 1 shows the device in a side view with a partial section and FIG. 2 in a top view with a partial section, with the omission of some parts that conceal the device. Figures 3 to 6 show, on a larger scale, cross-sections of some parts of the device. The application of the adhesive to the over a suitable surface, e.g. B. a rubber roller a, going paper strip b is carried out by a provided with a suitable groove disc c (Fig. 1, 2 and 6), which receives the adhesive from a container d by means of two transfer disks e and /. The disk e passes between a scraper w attached to the container d, which, as shown in FIG. 2, has a small cutout χ which allows only a strip of adhesive to be conveyed from the container d by the disk e. The disk / is provided with a matching groove into which the pulley c protrudes. The disks c, e and / are, as FIG. 2 shows, connected to intermeshing gears g, h and i and are set in rotation by any drive of one of the disks in the direction indicated by the arrow in FIG by means of its groove from the disc e removed adhesive strips into the groove of the disc c, which applies it as a raised thread on the traveling paper strip b. The pressure to be exerted by the disc c on the strip b can be regulated by a screw /, and the entire application device can be adjusted in the transverse direction of the strip by a screw k in order to be able to apply the adhesive to the correct location on the strip. Instead of the adhesive application device specified here, a container provided with a piston which can be moved by weight pressure or the like and has a mouthpiece through which the adhesive is pushed out by the piston as a thread and applied to the strip could also be used. From the adhesive application device, the strip b goes to the shaping and guide mandrel I, which is suspended from a bolt m and can be adjusted by a screw η (FIG. 1). A shaped plate 0 and a guide piece p are attached to the mandrel I, which give the moving strip b the first curvature for sleeve formation in the required manner. For the purpose of further shaping, the partially curved strip then passes through a guide sleeve q (Figs. 1, 2 and 5) which overlaps the mandrel I and which is provided with a gap from which the edge of the strip provided with adhesive, as Fig. 5 shows, protrudes in an upright position, while the other edge of the strip is placed over the mandrel I. The thus formed strip then passes, with its folded edge further guided, through part r (FIGS. 1, 2 and 4) through the insertion funnel t adjustable by means of the screw s, in which the sleeve is completely formed by superimposing the strip edges. Then the adhesive located on the upper edge of the sleeve, as can be seen in FIGS. 1, 2 and 3, is spread out by the smooth underlay roll u loosely rotatable in the mandrel I and the metal roll v provided with the sleeve shape corresponding to the smooth groove, which receives mechanical rotation . As a result, the adhesive seam is closed tightly and without creases everywhere and at the same time the tube strand is moved forward without damage, which is not possible when using a rubber roller. Godfather nt-A ν Proverbs:

1. Adhesive application and spreading device for machines for the production of endless paper tubes, characterized in that the adhesive is in the form of a z. B. triangle-like cross-section possessing thread near the edge of the paper edge through a pulley or otherwise appropriate means applied and for the purpose of closing the seam by two appropriate roles are crossed out.

2. Apparatus according to claim 1, characterized in that the Ausstreich- or Closing rollers are made of metal and one of the rollers rotatable in the sleeve mandrel has a smooth surface, while the other drivable roller with a corresponding twisted to the cross section of the sleeve mandrel smooth groove is provided, except for smearing the adhesive and sealing Merging of the adhesive seam to cause the advancement of the tube strand.

1 sheet of drawings.