GB2081420A - Expansible rollers - Google Patents

Expansible rollers Download PDF

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Publication number
GB2081420A
GB2081420A GB8118163A GB8118163A GB2081420A GB 2081420 A GB2081420 A GB 2081420A GB 8118163 A GB8118163 A GB 8118163A GB 8118163 A GB8118163 A GB 8118163A GB 2081420 A GB2081420 A GB 2081420A
Authority
GB
United Kingdom
Prior art keywords
roller
casing
supporting rings
inner peripheral
rotational axle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8118163A
Other versions
GB2081420B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental AG
Original Assignee
Continental Gummi Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Gummi Werke AG filed Critical Continental Gummi Werke AG
Publication of GB2081420A publication Critical patent/GB2081420A/en
Application granted granted Critical
Publication of GB2081420B publication Critical patent/GB2081420B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/02—Rollers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls
    • D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/112—Means for varying cross-section
    • B65H2404/1121—Means for varying cross-section for changing diameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2340/00—Apparatus for treating textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

A roller for the pressure treatment of fabric webs comprises a roller casing 1 which encloses a rigid rotational axle 4 and has a covering 2 made of rubber or rubber-like plastics material. The casing 1 is designed with a doubly tapering inner peripheral surface and is supported against the axle 4 by two supporting rings 7 which taper in the same direction and are displaceable towards or away from one another in the axial direction to expand or contract the roller by means of adjusting spindles 8. The conical surfaces of the casing 1 or the rings 7 may be grooved to allow the flow of lubricant via channel 14. <IMAGE>

Description

SPECIFICATION Roller for the pressure treatment of fabric webs The invention relates to rollers for the pressure treatment of fabric webs, comprising a roller casing which encloses a rigid rotational axle and has a covering which is made of rubber or rubber-like plastics materials and which forms the effective roller periphery.
Rollers having elastomeric coverings are known for many purposes in various technical fields of application, thus, for example, for manufacturing and treating paper and textiles, in the printing industry for rotational printing machines, and the like. Apart from cases of only secondary importance, the common problem again and again is the requiremenu to compensate for the inevitable deflection, caused by the rolling pressure of the rotational axle of the roller so as to preclude resultant changes in the external contours of the roller casing in the operating region and their disadvantageous effects upon the operating result. According to known proposals (e.g. German Patent Specification No.
2,254,393), the roller casing for this purpose is supported against the rotational axle, designed in this case as a fixed support, by a plurality of hydrostatic supporting elements in the form of piston members which have pressure medium supplied thereto. This arrangement is equally suitable for rigid metallic roller casings as for roller casings which are made of elastomeric materials and are possibly also provided with metallic or other reinforcing inserts, and it has in fact been thoroughly approved in practice under the most varied conditions. However, considerable structural expenditure and technical guidance work are involved in arranging the supporting elements so that they are slidingly guided in a sealed manner in cylinders and in supplying them with pressure medium.By comparison the object of the invention is to achieve, by substantially simpler mechanical means, an equivalent bending compensation with a curvature of the roller periphery - the so-called swell - which is adjustable within limits, as desirable, without any lost effect.
According to the present invention there is provided a roller for the pressure treatment of fabric webs, comprising a roller casing which encloses a rigid rotational axle and has a covering which is made of rubber or rubber-like plastics materials and which forms the effective roller periphery, in which the roller casing is designed with a doubly tapering inner peripheral surface and is supported against the rotational axle by two supporting rings which taper in the same direction and are displaceable towards or away from one another in the axial direction.
In this case, the inner peripheral surface of the roller casing is advantageously tapered so as to extend from its central portion towards both sides, whilst one or more adjusting spindles with a screw thread of a different pitch direction in the region of the two supporting rings are inserted paraxially into the tapering supporting rings and guided on the rotational axle.
By surprisingly simple means, the invention provides a perfect substitution for the known complex and expensive hydrostatic supporting elements which are susceptible to faults. Because of the axial displacement inwardly or outwardly of the tapering supporting rings one relative to the other by means of the inserted adjusting spindles, the supporting force which acts radially against the doubly tapering inner peripheral surface of the roller casing, and therewith the extent of the swell as the advance compensation for the axle bending, may be changed as desired. To reduce the friction between the conical surfaces which slide one upon the other, it is suitable to design the tapering surface, facing the roller casing, of the supporting rings in a convex spherical manner with a slight curvature corresponding to the swell predetermined mathematically.
The conical or tapering shape is fundamentally, therefore, not abandoned. It is also advisable to provide the supporting rings or the roller casing, on the respective associated conical or tapering surface, with continuous grooves for accommodating and conducting a coolant and/or lubricant. In a manner known per se, the gaseous or liquid coolant or lubricant may be supplied from an external source through hollow bores in the rotational axle and be circulated in a closed circuit.
The present invention will be further illustrated by way of example, with reference to the accompanying drawing in which the single Figure is a partial, longitudinal section through a printing roller in accordance with the present invention.
The roller shown, which serves, for example, as a pressure roller in a rotational printing machine, substantially comprises a roller casing 1 having a cohesive, elastomeric outer casing 2 which has been either slipped on or adhesively connected to the roller casing 1. The casing 2 encloses, with radial spacing, rotational axle 4 which is rotatably mounted in fixed bearings 3, and is held on the rotational axle 4 by means of clamping discs 5 which are attached on both sides and have an associated screw-locking ring 6. The roller casing 1 is designed with an inner peripheral surface which extends on both sides in a symmetrically doubly tapering or bi-conical manner and is supported against the rotational axle 4 in the radial direction by two similarly tapering supporting rings 7. The two tapering supporting rings 7 are joined together by a plurality of adjusting spindles 8, having a counter-thread, which are distributed at intervals along an arc and are inserted into continuous threaded bores, and, by rotating the adjusting spindles in one or other direction on the rotational axle 4, the supporting rings 7 may be moved towards each other or away from each other.
The changes thus caused in their reciprocal spacing also result simultaneously in radial deformations in the roller casing 1 and result indirectly in changes in the swell of the elastomeric outer casing 2.
A coolant or lubricant may be introduced in the direction of the arrows P,P via hollow bores 14 in the rotational axle 4 and be circulated in a closed circuit by means of longitudinal grooves, which are not shown in more detail, in the conical surfaces which slide one upon the other.

Claims (7)

1. A roller for the pressure treatment of fabric webs, comprising a roller casing which encloses a rigid rotational axle and has a covering which is made of rubber or rubber-like plastics materials, and which forms the effective roller periphery, in which the roller casing is designed with a doubly tapering inner peripheral surface and is supported against the rotational axle by two supporting rings which taper in the same direction and are displaceable towards or away from one another in the axial direction.
2. A roller as claimed in claim 1, in which the inner peripheral surface of the roller casing is tapered so as to extend from its central portion towards both sides.
3. A roller as claimed in claim 1 or 2, in which one or more continuous adjusting spindles with a screw thread of a different pitch direction in the region of the two supporting rings are inserted paraxially into the tapering supporting rings and guided on the rotational axle.
4. A roller as claimed in claim 1,2 or 3, in which the supporting rings are provided, on their surface facing the roller casing, with continuous grooves for accommodating and conducting a coolant and/or lubricant.
5. A roller as claimed in claim 1,2 or 3 in which the roller casing is provided, on its inner peripheral surface facing the supporting rings, with continuous grooves for accommodating and conducting a coolant and/or lubricant.
6. A roller as claimed in any one of claims 1 to 5, in which the conical surface of the supporting rings, facing the roller casing is designed in a convexspherical manner with a slight curvature.
7. A roller for the pressure treatment of fabric webs, substantially as hereinbefore described with reference to and as illustrated in the accompanying drawing.
GB8118163A 1980-07-01 1981-06-16 Expansible rollers Expired GB2081420B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803024893 DE3024893A1 (en) 1980-07-01 1980-07-01 ROLLER FOR THE PRESSURE TREATMENT OF TRACKS

Publications (2)

Publication Number Publication Date
GB2081420A true GB2081420A (en) 1982-02-17
GB2081420B GB2081420B (en) 1983-12-14

Family

ID=6106146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8118163A Expired GB2081420B (en) 1980-07-01 1981-06-16 Expansible rollers

Country Status (4)

Country Link
DE (1) DE3024893A1 (en)
FR (1) FR2486178A1 (en)
GB (1) GB2081420B (en)
IT (1) IT1137969B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535297A1 (en) * 1982-10-29 1984-05-04 Thimon Ets Device for obtaining variable tangential differential velocities at various points of a deformable film.
EP0110751A1 (en) * 1982-10-29 1984-06-13 Newtec International Stretching device
EP0134306A1 (en) * 1983-07-13 1985-03-20 Wakayama Iron Works, Ltd. Deflection-adjustable squeeze roll
EP0230288A2 (en) * 1986-01-21 1987-07-29 S.W. Industries, Inc. Adjustable-curvature roll
US4685182A (en) * 1985-05-28 1987-08-11 Windmoller & Holscher Impression cylinder for cooperation with a printing cylinder
EP0463366A1 (en) * 1990-06-25 1992-01-02 Sulzer - Escher Wyss AG Press-roll with adjustable deflection
EP0508742A2 (en) * 1991-04-08 1992-10-14 Seiko Epson Corporation Sheet conveying apparatus
WO2006032514A2 (en) * 2004-09-24 2006-03-30 Hannecard Nv Roller assembly
EP1731460A1 (en) * 2001-04-30 2006-12-13 Goss International Americas, Inc. Cylindrical body of a machine processing printed web material
CN112268063A (en) * 2020-09-02 2021-01-26 宝利泰橡胶科技扬州有限公司 Rubber roll convenient to change and glue face

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101990C2 (en) * 1991-01-24 1995-11-30 Roland Man Druckmasch Ink lifter rollers for rotary printing machines
DE19511341A1 (en) * 1995-03-28 1996-10-02 Roland Man Druckmasch Bow guide drum with adjustable outer surface
DE29612105U1 (en) * 1996-07-11 1996-08-22 Man Roland Druckmaschinen Ag, 63069 Offenbach Roller in a printing press
DE102004018832A1 (en) * 2004-04-19 2005-11-03 Goss International Montataire S.A. Method for fixing the position of a print roller has axially sliding thrust elements with sloping thrust faces to move a support element radially
DE102005050296A1 (en) * 2005-10-14 2007-04-19 Universität Bremen Roller, in particular calender roller, with controllable bending line

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535297A1 (en) * 1982-10-29 1984-05-04 Thimon Ets Device for obtaining variable tangential differential velocities at various points of a deformable film.
EP0110751A1 (en) * 1982-10-29 1984-06-13 Newtec International Stretching device
EP0134306A1 (en) * 1983-07-13 1985-03-20 Wakayama Iron Works, Ltd. Deflection-adjustable squeeze roll
US4685182A (en) * 1985-05-28 1987-08-11 Windmoller & Holscher Impression cylinder for cooperation with a printing cylinder
EP0230288A2 (en) * 1986-01-21 1987-07-29 S.W. Industries, Inc. Adjustable-curvature roll
EP0230288A3 (en) * 1986-01-21 1988-04-20 S.W. Industries, Inc. Adjustable-curvature roll
EP0463366A1 (en) * 1990-06-25 1992-01-02 Sulzer - Escher Wyss AG Press-roll with adjustable deflection
EP0508742A2 (en) * 1991-04-08 1992-10-14 Seiko Epson Corporation Sheet conveying apparatus
EP0508742A3 (en) * 1991-04-08 1992-12-23 Seiko Epson Corporation Sheet conveying apparatus
EP1731460A1 (en) * 2001-04-30 2006-12-13 Goss International Americas, Inc. Cylindrical body of a machine processing printed web material
WO2006032514A2 (en) * 2004-09-24 2006-03-30 Hannecard Nv Roller assembly
WO2006032514A3 (en) * 2004-09-24 2006-11-16 Hannecard Nv Roller assembly
US8075465B2 (en) 2004-09-24 2011-12-13 Hannecard Nv Roller assembly with an eccentric expandable cover retaining ring and a method of manufacturing the roller assembly
CN112268063A (en) * 2020-09-02 2021-01-26 宝利泰橡胶科技扬州有限公司 Rubber roll convenient to change and glue face

Also Published As

Publication number Publication date
IT1137969B (en) 1986-09-10
IT8122629A0 (en) 1981-06-29
FR2486178A1 (en) 1982-01-08
DE3024893A1 (en) 1982-01-28
GB2081420B (en) 1983-12-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee