Bruckner Maschinenbau Gmbh & Co. Kg

Bruckner Maschinenbau Gmbh

Anthimos Giapoulis

Markus Unterreiner

Michael Baumeister

Tobias Häusl

Jens Adler

Helmut Gumpinger

Anton Edfelder

Wolfgang Eiselmayer

Michael Bauer

Georg Murner

Emmerich Kulinyak

Manfred Dusch

Thomas Rott

Günter Oedl

Stefan Seibel

Florian Kellnberger

Jakob Kreitmair

Anton Wettemann

Werner Bamberger

Felix Winkler

Stefan Fußstetter

Peter Maurer

Florian Adler

Matthias Mitterer

Daniela Schumacher

Xaver Schwarz

Oliver Jung

Martin Swoboda

Michael Maetze

Sebastian Kraus

Philipp Lerch

A pinning device for the electrostatic pinning of a film on a chill roll is disclosed having a first coil unit, a second coil unit, a pinning region situated between the coil units, a high-voltage source as well as at least two electrodes. At least the first electrode of at least two electrodes is strip-shaped. The electrodes run from the first coil unit to the second coil unit in the pinning region and high voltage is applied to both electrodes by the high-voltage source.

Pinning device, casting unit as well as stretching unit

A tenter-clip carriage for a stretching system comprises a longitudinal direction (LR) and a transverse direction and a clip body having a clamping device. The tenter-clip carriage comprises fastening portions in order to fasten the tenter-clip carriage to a partial chain portion of a conveyor chain arrangement of the stretching system. The tenter-clip carriage comprises at least one stabilising roller or at least one stabilising sliding element. The at least one stabilising roller or the at least one stabilising sliding element is, by means of a guide device: The at least one stabilising roller or the at least one stabilising sliding element can be adjusted perpendicularly or transversely to the longitudinal direction by a force accumulator or spring-force accumulator.

Tenter-clip carriage for a conveyor chain arrangement of a stretching system and an associated stretching system

The invention relates to a ventilation module for a film stretching system at least one first outlet nozzle arrangement having an outlet nozzle, wherein the at least one outlet nozzle extends with its longitudinal direction transverse or perpendicular to the withdrawal direction of a plastic film web and is oriented in parallel to the transport plane. A first return system is provided with at least two extraction channels, each having an intake region. The at least two intake regions are spaced apart from one another in the withdrawal direction and oriented in parallel to the transport plane. The at least one outlet nozzle of the at least one first outlet nozzle arrangement is arranged between the first and the second intake region. The at least two intake regions are arranged exclusively before and/or after the at least one first outlet nozzle arrangement in the withdrawal direction of the plastic film web.

Ventilation module for a film stretching system and film stretching system of this type

A film winding system () for a film stretching unit () comprises a film entry area () through which a film web () to be wound can be fed to the film winding system (). A first winding station () is configured in a winding position to wind the film web () into a film bale (). A contact roller () and a measuring roller () are provided, the contact roller () being arranged adjacent to the first winding station () in the winding position and being configured to guide the film web () to the first winding station (). The measuring roller () is arranged before the contact roller () in the movement direction of the film web () and is configured to guide the film web () to the contact roller (). A first adjustment device () is provided and configured to move the measuring roller () relative to the contact roller () along a travel path in such a way that a degree of wrapping over which the film web () covers the contact roller () can be varied.

Film winding system and film stretching unit using such film winding system

An improved longitudinal stretching unit is disclosed, in addition to the installation position or operating position (A) for the assembly to be replaced, a standby position (D) and/or standby station at which a further assembly is kept on standby. The standby position (D) and/or the standby station is arranged and/or configured in relation to the longitudinal stretching unit such that the further assembly provided at this standby position (D) and/or standby station, already before the installation at the operating position (A), is brought or can be brought to operating temperature or at least to a preheating temperature that is higher or less than 30° C. lower than operating temperature.

Longitudinal stretching unit and method for replacing an assembly exposed to wear in a longitudinal stretching unit

A film stretching system having the following features: a stretching oven having a plurality of treatment zones through which a plastic foil film can be guided from a feed side to an outlet side through the stretching oven in the drawing-off direction, supply air can be supplied to the respective treatment zone and exhaust air can be discharged therefrom, the ventilation system for the treatment zones is constructed in such a way that exhaust air extracted from the last treatment zone in the drawing-off direction of the plastic foil film is supplied to at least two upstream treatment zones in the drawing-off direction of the plastic foil film, wherein a volume fraction of the exhaust air extracted from the last treatment zone is supplied to only one of the at least two treatment zones and another volume fraction is supplied to only one other of the at least two treatment zones.

Film stretching system

An improved stretching system has the possibility of reducing the distance between two successive guide clips, for example. In technical terms, this is solved by using control clips. For example, a control clip can be provided between two successive guide clips and causes the distance between two successive guide clips to be altered by way of a lateral position adjustment by means of a control rail.

Stretching system

The invention relates to a sliding element, in particular for a stretching installation and/or a conveyor chain, comprising graphite or electrographite, wherein the sliding element has pores which have an open pore size of &#x2265;7.5% by volume, and wherein the particle size of the graphite particles used as a starting material for the sliding elements is between 3 &#x3bc;m and 15 &#x3bc;m.

Sliding element, in particular for a stretching installation and/or conveyor chain, and associated stretching installation or conveyor chain

An improved linear-motor-operated conveying system is distinguished, inter alia, by the following features: the conveyed web can be fixed to the nipper part, as a result of which a conveyed web plane is defined, said film plane being arranged at a height with respect to the motor working side of the single linear motor drive or of the more powerful linear motor drive in the case of two linear motor drives, and said height being less than or equal to the length of the secondary parts on the conveying parts; the conveying system comprises either a) only one linear motor drive provided beneath the conveying part, or b) only one linear motor drive provided above the conveying part, or c) one linear motor drive arranged beneath and one arranged above the conveying part, the upper linear motor drive and/or the associated control system being configured in such a manner that the upper linear motor drive can only be operated with a maximum power of 75% in relation to the maximum power of the lower linear motor drive.

Linear-motor-driven conveying system, in particular stretching system

The invention relates to an improved transport system, in particular for a stretching system, characterized amongst other things, by the following characteristics: a support rail and/or a guide rail, over which a conveyor chain with clip chain units can be displaced, are provided, said units subdividing into a clip part and a chain part, said support rail or the guide rail or the support rail and the guide rail is/are provided with a channel which transverses in the longitudinal direction at least in one of the partial lengths of the support rail and the guide rail. The support rail running surface comprises a plurality of outlet openings through which the compressed air can be guided on the channel for generating an airbag between the support rail running surface and an air bearing cushion plate on the clip-chain unit and/or the running rail running surfaces comprise a plurality of outlet openings through which the compressed air can be guided on the channel by generating an air bag between the respective guide rail running surfaces and a bearing device on the clip chain unit.

Transport system, in particular transverse stretching systems

The invention relates to an improved stretching unit characterized, amongst other things by the following: the clip-chain unit is designed such that the forces which are exerted are decoupled and applied in a tilting-free and torque-free manner to the clip-chain unit in order to prevent an increase of the surface pressure between the clip-chain unit and the supporting rail.

Stretching unit

Growing community of inventors

Traunstein, Germany

Anthimos Giapoulis