Krupp Corpoplast Maschinenbau Gmbh

Topack Verpackungstechnik Gmbh

Gildemeister Corpoplast Gmbh

Krupp Corpoplast

Peter Albrecht

Klaus Vogel

Wolfgang Reymann

Walter Wiedenfeld

Adolf Appel

Karl-Heinz Balkau

Claus Horwege

Gunter Kleimenhagen

Marek Peterko

Hermann Werner

J&uuml;rgen Grossmann

Otto Rosenkranz

Josef Glosmann

Dieter Schmidt

Frank Bley

Reinhard Deutsch

Vinco Cujic

Hans Conow

Tilman Doring

Holger Kother

Peter Rose

Edward Clar

An elongated bridge-like member which normally assumes an operative position in which it prevents access to a track for the advancement of finished or partly finished cigarette packs between two successive stations in a packing machine is designed to have its length reduced prior to being movable&mdash;without colliding with parts at the stations&mdash;from the operative position to an inoperative position in which the track and the cigarette packs in the track are accessible. To this end, the bridge-like member has two carriages each of which includes one of the two end portions of the fully extended bridge-like member; each carriage is movable toward the end portion forming part of the other carriage. A locking device must be disengaged in order to permit movement of the bridge-like member from the operative to the inoperative postion.

Method of and apparatus for controlling access to groups of rod-shaped smokers' products in a packing machine

A machine wherein block-shaped arrays of cigarettes are confined in envelopes having closed ends and open ends located at the adjacent end faces of the confined arrays. Each open end includes two confronting elongated flaps alternating with narrow tucks which are to be folded against the adjacent end face of the confined array ahead of the flaps. Successive envelopes are delivered onto a platform constituting the bottom wall of a receptacle and being movable from a lower level, in which the receptacle receives an envelope, to an upper level in which it delivers the finished envelope into a pocket at the underside of an indelible turntable. The tucks of an envelope on the platform are folded over the adjacent end face of the confined array by two folding elements which are movable in a horizontal plane. The flaps are held against deformation by mobile confining elements and the upper panel of the envelope adjacent the upper flap is held against bulging by a pivotable back support which overlies the envelope adjacent its open end during folding of the tucks.

Apparatus for manipulating flaps of packets for products of the tabacco

The device serves to apply a prestress to blow moulding elements mounted in the region of mould carriers. The blow moulding elements am adjacent to each other in the area of a mould seam and in each case regionally enclose an internal space, which is intended for shaping a container manufactured with a blow process. In an elastomer a positioning element is embedded at least regionally and is enclosed at a distance by a peripheral element. At least part of the elastomer is arranged between the peripheral element and the positioning element in order to form an elastic connection.

Prestress device

This device is used for the blow moulding of thermoplastic synthetic material, with it having a blow mould consisting of at least two blow-moulding elements. The blow mould is provided with an internal space designed for shaping a produced container. The blow moulding elements are arranged in the region of pivotally seated mould carriers. The mould carriers are guided on a shaft and a locking device is provided in the area of the end of the mould carrier facing away from the shaft. In the region of their extension facing away from the locking device, the mould carriers project beyond the shaft by means of their actuating arms. The actuating arms are rotationally coupled to an adjusting element via coupling levers. The adjusting element is guided essentially in the direction of a center line of the blow mould.

Device for blow moulding

In a process for producing hollow bodies of oriented thermoplastic material, a hollow blank having a bottom portion and a substantially cylindrical wall portion with an opening at its end remote from its bottom portion is subjected to pre-expansion in the region of the opening and then thermofixing in a subsequent treatment step. The thermofixing operation may be preceded by a mechanical expansion operation for orienting the plastic material forming the wall portion of the blank.

Process for producing hollow bodies of oriented thermoplastic material

A process and an apparatus for forming a flange on the wall portion of a hollow body of thermoplastic material with an opening at one end provides that the end part of the wall portion which defines the opening is heated and contracted by means of a force acting on the end portion from the outside thereof over the periphery thereof, whereupon the contracted end part is subjected to a pressing operation to form a flange extending around the contracted end part.

Process for forming a flange on a hollow body of thermoplastic material

A process for producing hollow bodies from oriented thermoplastic material wherein a cylindrical portion of a heated hollow preform which has a bottom thereon is subjected to stretching at a starting temperature which is below the vitreous transition temperature of the thermoplastic material, with the wall thickness of the preform being reduced in the stretching operation. Prior to the stretching operation the preform is heated in the portion in which the stretching effect begins, to a temperature higher than in the portion adjoining same. Stretching is preferably effected along the axis of the preform at different rates such that in the portion of the preform at which stretching begins, stretching is effected at a lower rate than in the portion adjoining same in the stretching direction.

Process for producing hollow bodies from thermoplastic material

In the production of hollow bodies from oriented thermoplastic material, a cylindrical portion of a heated hollow preform is stretched, with a simultaneous reduction in the wall thickness thereof, at a starting temperature below the vitreous transition temperature of the material. A mandrel is positioned in the preform to support it during stretching, the outside diameter of the mandrel corresponding to the inside diameter of the preform. Directly before the mandrel is inserted into the preform the preform is subjected to re-alignment to adapt at least the cross-sectional shape of the mouth opening of the preform to the cross-section of the mandrel. The re-aligning operation is effected by inserting the preform into a sleeve adjoining a drawing ring for carrying out the stretching operation.

Process and apparatus for producing hollow bodies from thermoplastic

In an apparatus for producing hollow bodies from thermoplastic material in large numbers a plurality of stations in which the blanks are successively subjected to various treatment steps are arranged at horizontal spacings around the peripheral surface of a vertical, substantially cylindrical housing of an operating unit of the apparatus. The blanks to be treated are passed downwardly through the operating unit and a first one of the treatment stations therein to the next station therein. Arranged within the operating unit is a cam drum which rotates about a vertical axis and which has cams adapted to actuate tools for treating the blanks in at least some of the treatment stations. Two or more such operating units may be connected in succession for carrying out successive treatment operations on the blanks.

Apparatus for producing hollow bodies of thermoplastic material

An apparatus for treating blanks of plastic material comprising a substantially cylindrical main frame structure, a central, coaxial cam drum which is mounted within same rotatably about its longitudinal axis and which is provided on its outside with working cams, and a plurality of treatment stations arranged in juxtaposed relationship around the periphery of the frame structure, with tools for processing the plastic blanks. The tools in a respective station are carried by vertically movable carriages, each of which is adapted to be moved up and down in the station by a cam follower guided by an associated cam on the cam drum. Each cam follower is carried by a drive carriage. The respectively associated tool carriages and drive carriages are each independently guided on the housing by vertical guide means and are interconnected by way of non-rigid connecting means. The guide means for the carriages are arranged in projection on to a plane perpendicularly to the direction of movement of the respective carriage, between the cam follower and the point at which a reaction force resulting from treatment of a said blank acts on the tool carriage.

Apparatus for treating blanks of plastic material

In the art of blow molding thermoplastic articles a pair of blow mold halves is closed around a parison. A blowing medium is applied so that the parison is thus blown to a container configuration. In this blowing step very high closing forces are necessary to maintain the mold halves in closed position. The invention provides for a plurality of biased pistons which are actuated by a pressure medium to support the mold halves on a stationary frame.

Apparatus for blow molding plastic articles from a parison

An apparatus to make articles, in particular bottles, from parisons in a blow mold operation. The parisons are carried on transfer mandrels throughout the operation. The parisons riding on the transfer mandrels are heated while travelling around on a first wheel and are transferred into blow mold units mounted on a second wheel. Each blow mold unit is provided with an expanding mandrel which is extended through the transfer mandrel into the parisons. Two different blowing pressures are used in the blowing step which is controlled by cam controlled valves. From the second wheel the mandrels carrying the blown articles are transferred to an output wheel where the articles are removed from the transfer mandrels which are returned to the first wheel.

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Hamburg, Germany

Peter Albrecht