DE1411327A1 - Roller for the pressure treatment of webs - Google Patents

Description

Eduexd Küster »in Krefeld · Orphan for the pressure treatment τοη Warβηϊ »suspect. Zueata on patent ........ (patent application * K. 28 004

Vli / 55e),

The invention relates to a whale for the pressure treatment τοη webs of material, which are determined from a drum or tube-shaped »sum as well as the hollow body forming the roller circumference and a stationary, rigid core located therein to absorb loads, with the between the circumference of the core and the inner wall of the hollow body existing space on the point of action of the The side facing the roller, a pressure fluid with provision of a barrier against the one on the Effective point of the side facing away from the roller lying rope of the gap is reses, according to patent ···· .. · (Patent application K. 28 004 VIl / 55e)

For some performed on rolling machines Operations, it is desirable not to keep the contact pressure of the rollers a *% rigid, but rather one to provide some elasticity. This is particular with leztil processing machines, so apparatus and Pärbefoulards, Wasa calenders etc. τοη Importance ·

Bine others to be placed on roller machines The requirement is that narrow material webs can also be processed on a machine with a large width, without any particular difficulties arising or the quality of the product suffering Operations, it is useful to the roller a

8098 1 2/027 1

-2- U11327

certain bending of loans, for example also there · calendering and Aueslehen τοη plastic films ο «dgl · ron very small width in perfect How to carry it out

The invention represents a further development of the subject matter according to the main patent and involves the creation of a partially usable orphan, which meets the requirements mentioned above, and also allows the tortell-like execution of all such work operations that are based on the type or dimensions of the see below the goods to be treated or the desired work results have so far caused particular difficulties or were not possible at all

According to the invention, the hollow body is rorsugswelse using τοη rolling bearings on the The core is stored and there are facilities on the side pegs of the core of the orphan to effect one of the Spigot arranged in sighting on an opposing orphan su print striving force · At a load of the The pin acts simultaneously in the space between the core and the hollow body on the point of action facing side and ensures a smooth pressure on the The force acting on the pin is partially dependent on the gate τοη the pressure inside the orphan gate hand automatically regulated in gate-given white · by one Regulation has been achieved »that even at Tersohiedenen Terangten working pressures the pin load and the the hydraulic pressures acting inside the orphan are in a certain relation to each other

Apart from the automatic regulation is according to the invention for optional adjustment of the pin load an independently actuating adjusting device gate seen · This allows the orphan to be bent within certain limits to Extra-wide machine process particularly narrow material webs see below. 809812/0271 ORIGINAL INSPECTED

In a preferred embodiment of the invention, in order to apply the force to the pin of the Xnrnme, pneumatically charged double-acting pressure cylinders are provided

. The pressure cylinders are designed to be double-acting 0 in order to be able to ventilate the orphan «For this purpose, the pressure medium supply is · when using Compressed air as the working medium in the air supply, a switching valve built in · duroh which is optional the upper or lower cylinder spaces with Druelaiittel for independent adjustment of the journal load A pressure reducer is used, which is located in front of the switching valve in the pressure medium supply.

The drawing illustrates an embodiment of the invention in schematic sectional view in which two working together Orphans are stacked

Both orphans each consist of a crosshead or core provided with lateral pegs 1, 2 3 or 4 and a roller body proper, which is mounted on the core 3 or 4 by means of roller bearings 5 forming drilling 6 or 7 The part 8 or 9 of the space between each facing the point of action the core 3 or 4 and the tube 6 or 7 are filled with pressure fluid and opposite that of the point of action facing away! Ceil 10 or 11 by means of barriers 12 and seals 13 separated ζ · Β · Hydraulic oil is conveyed by a pump 17 and the inside of the roll via the line 18, in which an oil filter 19 is located, a pressure regulator 20 is used to adjust the oil pressure, and the outlet 21 is used opens into the oil tank 22 · The effective oil pressure is

309812/0271

. _4th U11327

readable on a manometer 23 · The ropes 10, 11 of the Walsen interior facing away from the point of action are connected by the lines 24 to the oil tank 22

The pins 2 of the core 4 are firmly supported, as indicated in the drawing. On the cones 1 of the core 3 of the upper orphan grab piston rods ο «the like. τοη guided in double-acting pressure cylinders 15 piston 16 to load the pin 1 and to push in the direction of the counter roller · The pressure medium, for example Air, depending on the position Umsohaltventils 25 the upper or lower surfaces of the Piston 16 are supplied · The compressed air supply is with 26 and a vent line with 27 · In the position of the shown in the drawing Switching valve 25, the underside of the piston 16 is acted upon via the lines 28 the lever 29 of the Umsohaltventils 25 moves into the dot-dash position, whereby compressed air over the Line 30 is first fed to a differential regulator 31 and from this through the lines 32 su the upper spaces of the pressure cylinder 15 flows, whereby the air pressure can be read on the manometer 33 The force exerted on the pin 1 as a result is automatic and dependent on that inside the orphan The prevailing oil pressure is regulated · This is done by the differential regulator 31, ti ¥ e * Me of the line 34 this pressure is applied

Before the switching valve 25 4e * is in the Feed line an adjusting device 35, so a pressure reducer switched on »With the help of this device it is possible to adjust the roller in certain Bending boundaries, as it is desirable if narrow material webs on a very wide machine should be processed.

Switching on and off those used to supply the inside of the roll with hydraulic fluid

Pump 17 can advantageously be carried out by one in 809812/0271

the Zeiohnung not shown pressure switch take place, of the differential regulator from the switching valve 25 sum 51 leading line 30 is installed

By the invention an orphan is created, which in various fields, so see B. in the Textile industry, the plastics processing industry or the paper industry, which allows a versatile application and is particularly characterized by the automatic Regulation of the pin load and the additional Adjustment possibility for all work tasks to be carried out can be easily adjusted

Claims (1)

Patent claims 1 «) Orphan for the pressure treatment τοη webs of goods, which consist of a drum« or tubular, the rotation determined as well as forming the roll circumference Hollow body and a stationary, rigid core located in it to absorb loads, where in the "wipe the JSaf ang the kernel and the Inner wall of the hollow body existing space on the side facing the active parts of the orphan a pressure fluid with provision of a barrier against the rope of the swisohenraumes on the side facing away from the orphan's point of action is provided, according to patent ........ (patent pending X · 28 004-VIl / 55e), characterized in that the hollow body is preferably mounted on the core using τοη whale bearings and on the pin of the Cores «facilities aimed at bringing about a push of the cones in Biohtong on a uegenwalse eu Force are arranged * 2 ·) orphan according to claim 1, characterized in that the force acting on the pin is in Dependence τοη on the core between the space 809812/0271 and hollow body existing hydraulic pressure in is automatically adjustable in the specified manner * 3 ·) orphan according to one of claims 1 and 2, characterized in that sur optional setting the pin load an independently actuated adjusting device gate is seen 4) orphan according to one of claims 1 to 3, characterized »that the force applied to the pin is preferably pneumatically applied, double-acting pressure cylinders are provided 5 ·) orphan according to claim 4 »marked by a differential controller, which the in the Pressure cylinders acting pressure as a function of the τοη hydraulic pressure »wipe core and hollow body regulates automatically · 6 ·) Orphan according to one of claims 4 and 5 »characterized in that in the Druckodttelsuftihrung a control valve or the like to relieve the stress Pin and ror the uncontrolled valve a pressure reducer o * dgl · is built in « 809812/0271