DE2122685C

DE2122685C - Device for pressing belt continuously moved over a drive or brake drum onto the latter

Info

Publication number: DE2122685C
Authority: DE
Inventors: Pierre La Tour en Jarez Loire Gay (Frankreich)
Original assignee: Creusot-Loire, Paris
Publication date: 1972-10-12

Description

Im Laufe der verschiedenen Stufen der Herstellung an. Mit 9 ist das schematisch dargestellte Gerüst beeines Metallbandes ist es häufig erforderlich, dieses 40 zeichnet, das die Lager für die Rotationsachsen der kontinuierlich zu fördern und in verschiedenen Ab- Trommel 2, 3 und 4 aufnimmt,
schnitten in einen bestimmten Zugkraftbereich zu Ein Zuführteil S ist bei 10 im Gerüst 9 geführt,In the course of the various stages of manufacture. With 9 is the schematically shown frame of a metal band, it is often necessary to draw this 40, which continuously promotes the bearings for the axes of rotation and receives them in different drums 2, 3 and 4,
cut into a certain tensile force range A feed part S is guided at 10 in the frame 9,

bringen, der für die Arbeitsgänge passend ist, die es Ein Kolben-Zylinder-Getriebe 7, das durch einebring that is suitable for the operations that it A piston-cylinder gear 7, which is through a

in diesen Abschnitten durchläuft. Dies wird mit Hilfe Vorrichtung 8 mit Druckmittel unter Druck gespeist der vorgenannten Vorrichtung erreicht. 45 wird, drückt das Zuführteil 5 auf das Band 1 zu inruns through in these sections. This is fed by means of device 8 with pressure medium under pressure the aforementioned device achieved. 45, the feed part 5 pushes the belt 1 towards in

Dabei wird das Band über einen Winkel α umfaßt, dem Bereich, wo dieses die Trommel 3 umfaßt. Eine »ίο er in F i g. 1 dargestellt ist. Vorrichtung 6 speist den an das Band angrenzendenThe band is encompassed over an angle α, the area where it encompasses the drum 3. One »Ίο he in fig. 1 is shown. Device 6 feeds the one adjacent to the belt

Die Kapazität zur Erhöhung oder Verringerung Hohlraum des Zuführteils 5 mit Druckluft,
der Zugkraft bzw. Spannung ist durch das Auftreten Ein Ventil 11 ermöglicht die Schaffung einesThe capacity to increase or decrease the cavity of the feeding part 5 with compressed air,
the tensile force or tension is due to the occurrence of a valve 11 enables the creation of a

des Schlupfes des Bandes auf der Trommel begrenzt. 50 variablen Druckabfalls zwischen der Spcisevorrich-the slippage of the belt on the drum is limited. 50 variable pressure drop between the Spcisevorrich-

Um die Mitnahmekapazität zu erhöhen, ist bei der tung 6 und dem Zuführteil 5 und die entsprechende bekannten Vorrichtung außerhalb der Trommel das Verminderung des Druckmitteldurchsatzes. Dieser Zuführteil fest angeordnet, das zwischen sich und Durchsatz wird für eine gegebene Kraft des Zylinderder Trommel die Kammer bildet, in die man das Kolben-Getriebes 7 auf einen gerade dazu ausreichen-Druckmittel unter Druck einführt, was ein Andrücken 55 den Wert reguliert, daß ein Reiben des Zuführteils 5 des Bandes an die Trommel bewirkt. am Band 1 verhindert wird.In order to increase the entrainment capacity, the device 6 and the feed part 5 and the corresponding known device outside the drum to reduce the pressure medium throughput. This Infeed part fixedly arranged, which is between itself and throughput for a given force of the cylinder The drum forms the chamber into which the piston gear 7 is pressurized by a pressure medium that is just sufficient for this under pressure, which a pressure 55 regulates the value that a rubbing of the feed member 5 of the belt to the drum. on belt 1 is prevented.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

However, there is the disadvantage that a patent claim:. High throughput of the pressure medium is required because there is a noticeable clearance between the chamber and

1. Device for pressing continuously the drum over which the belt (variable thickness) 5 running via a drive or brake drum is available.

Tape to this with one over a part- The invention is based on the object of this

In the area of the cylindrical drum surface, the latter known devices have to be improved in such a way that they are stretching and are at a distance opposite them so that the pressure medium throughput is lower.
Feed part for a pressure medium, the surface of which according to the invention is convex and bridge-like and thus solves a chamber jo in that the feed part is mounted so that it can be pushed radially to the drum between its surface and the belt and that one is pressure-molded and that with bores is provided, means attacked piston-cylinder gear on the supply lines for the pressure medium.

are closed, characterized in that the effect is achieved that a Bc-

that the feed part (5) radially to the drum (3) 15 stir between the bridge and the belt is displaceably mounted and that on him a prevents the formation of a very thin Fluidkisscns Pressure medium can be acted upon piston-cylinder and that only a very small clearance between Gear (7) engages. the bridge and the ribbon sustained so that only

2. Device according to claim 1, characterized in that a low pressure medium flow rate / can occur indicates that in the supply lines for the 20 and that without friction of the bridge on Pressure means consists of a valve (11) for creating a band.

adjustable pressure drop is built in. It is in a different context, namely

when pressing the beginning of the tape against the mandrel of a tape reel, has already been proposed

25 (German patent specification 1777 120), to design press air supplying sectors surrounding the mandrel so that they can be pulled out and pushed forward, but this only serves to _:

The invention relates to a device to put the sectors in a specific working position to press continuously over a drive, but not under constant pressure on the or brake drum moving Bp "d to be pressed against this with 30 winding mandrels.

A part of the cylindrical part is shown in FIG

Drum surface extending, described at a distance from Fig. 2, the one vertically opposite Feed part for a pressure medium, cut through a device according to the invention whose surface is convex and bridge-like and shows.

with a chamber between its surface and 35. The belt 1 moves in the direction of the is shaped to form the band and the one with the drilling arrow / and lies one after the other on a bend is provided, to the supply lines for the drum 2, then to a drive or brake pressure medium are connected. drum 3 and finally on a tail drum 4