Abstract

The invention relates to a device, comprising: a spreader roll (2), the spreader roll having a roll tube (3), over which a material web is guided, the bending of the spreader roll (2) about its longitudinal axis allowing the material web to be spread out; and two bearing journals (4), which are operatively connected to the roll tube (3) and are pivotably articulated in a machine frame (1), the bearing journals (4) being mounted on the machine frame (1) by means of pivotable bearings (6) and the bearing journals having longitudinal pins (5) protruding beyond the bearings (6), at the ends of which longitudinal pins radially acting adjustment means (7) are positioned.

IPC Classes  ?

• B65H 23/025 - Registering, tensioning, smoothing, or guiding webs transversely by tentering devices by rollers
• F16C 23/08 - Ball or roller bearings self-adjusting

Abstract

The invention relates to a winding machine for winding thin films, in particular plastic films, having a winding roller, on which the film is wound, and a contact roller, which presses the wound film against the winding roller, wherein measures are provided by means of which, in the region of the nip area, in which there is contact between the winding roller and the contact roller and the film therebetween, the contact pressure is significantly higher than known contact pressures, this being achieved by strengthening the components used, in particular the winding levers, or by doubling the winding levers and the associated actuators for adjusting the contact roller or the winding roller.

IPC Classes  ?

• B65H 18/26 - Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers

Abstract

The invention relates to a device, comprising: a spreader roll (2), the spreader roll having a roll tube (3), over which a material web is guided, the bending of the spreader roll (2) about its longitudinal axis allowing the material web to be spread out; and two bearing journals (4), which are operatively connected to the roll tube (3) and are pivotably articulated in a machine frame (1), the bearing journals (4) being mounted on the machine frame (1) by means of pivotable bearings (6) and the bearing journals having longitudinal pins (5) protruding beyond the bearings (6), at the ends of which longitudinal pins radially acting adjustment means (7) are positioned.

IPC Classes  ?

• D21F 1/40 - Rolls

Abstract

The invention relates to a winding station (1) comprising a base (2). A support (4) which can be moved by a drive unit (3) is mounted on the base (2), and a receiving support (6) for receiving a winding shaft, on which a layer material is wound or unwound, is arranged on the support (4). The invention is characterized in that the support (4) is equipped with an additional support (8) which can be moved relative to the support (4), wherein one end of the receiving support (6) is arranged on the additional support (8), and a force element is provided between the two supports (4, 8).

IPC Classes  ?

• B65H 16/04 - Supporting web roll cantilever type
• B65H 18/02 - Supporting web roll

Abstract

The invention relates to a cutting blade holder, wherein a base (2) is arranged on a machine in a stationary manner, while the cutting blade is inserted in a holder, characterized in that the holder is pivotably arranged on the base (2) and a pivot point (8) of the holder with respect to the base (2) is the tip of the cutting blade in the cutting region.

IPC Classes  ?

• B65H 35/02 - Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
• B26D 7/26 - Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member

Abstract

A method for operating a device comprising cutting tools, for the automatic replacement of these cutting tools on cutting machines, the device being provided with a first container and an additional container for receiving cutting tools. The method is characterised in that each cutting tool has at least two cutting regions and that firstly one cutting region is used and subsequently the cutting tool is replaced.

IPC Classes  ?

• B23Q 3/155 - Arrangements for automatic insertion or removal of tools
• B26D 7/00 - CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING - Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
• B26D 7/26 - Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member

Abstract

The invention relates to a cutting roller (1) for a roller cutting machine, in particular for the processing of wide film webs, having a plurality of ring-shaped circumferential grooves (6) extending perpendicular to an axis of rotation (4), wherein the cutting roller (1) comprises a hollow-cylindrical supporting body (2) of a fiber composite material, characterized in that at least one metallic groove sleeve (5, 50, 51) forming the grooves (6) is arranged coaxially on and fixed to the supporting body (2).

IPC Classes  ?

• B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefor; Cutting members therefor
• B26D 7/26 - Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member

Abstract

The invention relates to a transport device (1) for band and/or strip-shaped material, in particular films, comprising at least one horizontal guide system (2) having a feed unit (3) which comprises a vertical guide system (4) which is connected, directly or indirectly, to at least one gripper (6) by means of an arm (5), a track (8) can be freely selected.

IPC Classes  ?

• B65H 20/16 - Advancing webs by web-gripping means, e.g. grippers, clips

Abstract

The invention relates to a device for longitudinally cutting running material webs, comprising at least one cutter holder (10) on which a cutter (11) is fitted, wherein the blade of the cutter (11) is able to dip into a circumferential groove in a grooved roller in order to cut a material web and the grooved roller is partially wrapped at the cutting point by the material web to be cut. In this case, the cutter (11) is a circular cutter mounted rotatably in the cutter holder (10), said circular cutter being rotatable in a stepwise manner into a plurality of angular positions in which the circular cutter (11) is fixed.

IPC Classes  ?

• B26D 1/03 - Cutting through work characterised by the nature or movement of the cutting member; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
• B26D 7/08 - Means for treating work or cutting member to facilitate cutting

Abstract

The invention relates to a winding machine for producing winding rolls (2) from material webs (1), in particular from plastic films, comprising at least one winding station, which comprises two winding stands (3), between which a winding roll (2) is suspended during the winding, and comprising a contact roller (4), which lies circumferentially against a winding roll (2) under pressure during the winding, wherein the winding stands (3) are movably supported in the direction of the contact roller (4) and back at least in the area of the winding roll center in order to adapt to the winding roll diameter, and the contact roller (4) is supported at each end thereof in a stationary retainer in such a way that the contact roller can be moved linearly and in the direction of the winding roll center (6) and can pressed away from the winding roll (2) against an elastic counter force.

IPC Classes  ?

• B65H 18/26 - Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers