L. Schuler Gmbh

Schuler Pressen Gmbh & Co.

Gunter Riedisser

Kurt Finsterwalder

Oskar Rahn

Karl-Heinz Philipp

Wilfried Voss

Oswald Barodte

A transfer arrangement for a multistation press has two parallel gripper rails on a carrier and can be moved, together with the carrier, along a transfer curve. The gripper rails carry gripper fingers which are assigned to one another in pairs and which can be moved toward and away from one another by an oppositely directed movement of the gripper rails. The application movement is generated by parallelogram transmissions which are used for the bearing and for the drive of the gripper rails. The parallelogram transmissions are driven from a single drive source by a cardan shaft which permits the implementation of the transfer movement without any change of the relative position of the gripper fingers with respect to one another. Such a transfer arrangement is arranged on one side of the row formed by the tools and permits good access to the workpieces from the respective other side. As required, the entire transfer arrangement can be removed from the tool area, preferably in a swivel movement.

Transfer arrangement for multistation presses

Ejection device for ejecting a workpiece from a die in a forming press

A drive for a male-mold-site ejector slidably disposed in a slide of a mechanical metal-forming press has an angle lever pivoted in the slide. One leg of the angle lever act upon the end of the ejector facing away from the male mold and the other leg of the angle lever is in driving connection with a guide rod which is linked to a driving connecting rod for the slide. In a timed manner, the guide rod transmits driving movements to the angle lever. The driving connection is constructed as a link chain, in which the guide rod linked to the driving connecting rod is disposed approximately at a right angle to the moving direction of the slide and the arm of a two-armed lever linked to it extends approximately in parallel to the moving direction of the slide.

Drive for a male-mold-side ejector slidably disposed in a slide of a

An apparatus for the intermittent feeding of web-type or strip-type material by means of feed roll into an operating chamber of a press. The feed rolls are driven by a main press drive through a mechanical connection and a feed gear mechanism. A scrap cutter is provided which can be driven in correspondence with the operating cycle of the press. The mechanical connection can be selectively severed or interrupted with an auxiliary drive mechanism being provided which is adapted to be connected to the apparatus. The scrap cutter may be driven by a separate drive mechanism in correspondence with the cycle of the feed gear mechanism.

Apparatus for intermittent feeding of web-type or strip-type material

A plurality of toggle drive mechanisms are provided for transferring rotational shaft movement as linear movement of a press ram guidably supported in a press frame. Each of the toggle joint drive mechanisms includes a triangular shaped drive member eccentrically driven by a crankshaft, which drive member is pivotally connected to a pair of respective facing link members, which link members in turn are pivotally attached one each to the press frame and the press ram. The pivotal connection of the link members to the drive members are at corners of the triangle facing away from the smallest acute angle corner of the guide member. In one preferred embodiment, four separate such toggle joint drive mechanisms are provided for a single press ram and are connected by way of lower link members at four respective ram coupling points of the press ram. Other preferred embodiments include only two ram coupling points, with symmetrical drive being obtained by way of pin members interconnecting triangular guide members at opposite sides of a third triangular guide member, and with one of the sets of link members being connected to these pins so that the link members are symmetrically arranged with respect to link members attached at the third guide member.

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Eislingen, Germany

Gunter Riedisser