EP1034051B1 - Bending machine - Google Patents

Bending machine Download PDF

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Publication number
EP1034051B1
EP1034051B1 EP98951296A EP98951296A EP1034051B1 EP 1034051 B1 EP1034051 B1 EP 1034051B1 EP 98951296 A EP98951296 A EP 98951296A EP 98951296 A EP98951296 A EP 98951296A EP 1034051 B1 EP1034051 B1 EP 1034051B1
Authority
EP
European Patent Office
Prior art keywords
roller
segments
lower roller
gable
rollers
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.)
Expired - Lifetime
Application number
EP98951296A
Other languages
German (de)
French (fr)
Other versions
EP1034051A1 (en
Inventor
Heine Plougman Olsen
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.)
HEINE PLOUGMAN OLSEN
Original Assignee
Heine Plougman Olsen
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 Heine Plougman Olsen filed Critical Heine Plougman Olsen
Priority to DK98951296T priority Critical patent/DK1034051T3/en
Publication of EP1034051A1 publication Critical patent/EP1034051A1/en
Application granted granted Critical
Publication of EP1034051B1 publication Critical patent/EP1034051B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C7/00—Making conical articles by winding

Definitions

  • the present invention relates to a bending roller, in particular for use in the production of cones or frustoconical objects of plate material, and comprising a lower roller and an upper roller, said rollers being mounted with the ends in end gables such that they are mutually movable, preferably in that the upper roller is movable in a vertical plane relatively to the lower roller, and where one of the rollers, preferably the lower roller, consists of a plurality of individual rotatable circular segments on a shaft, said segments being provided with a coating of rubber or similar resilient material (see for example DE-A-1 602 489).
  • the presumably most widely used form of bending rollers consists of three rollers, viz. two lower rollers and an upper roller movable with respect to these.
  • the roller is suitable for producing container shells and similar cylindrical objects.
  • bending of cones or frustoconical objects is not so easy on such a roller.
  • the object of the invention is to provide a bending roller which is suitable also for the bending of cones or frustoconical objects, and where the length of the roller may be adapted to the length of the objects concerned which are to be bent.
  • a bending roller of the type stated in the opening paragraph in that it comprises a common end gable in which the rollers are mounted with one end, and another end gable in which the lower roller is mounted with the other end, as well as an end gable which is movable between these two gables and in which the upper roller is mounted with the other end.
  • An expedient width of the segments is of the same order as the radius of these.
  • the length of the shaft is preferably greater than the overall length occupied by the segments thereon, while the segments are arranged individually movably on the shaft.
  • the bending roller comprises a common end gable 4 and another end gable 5 between which a lower roller 1 is mounted.
  • This consists of a plurality of circular segments 6 which are arranged individually rotatably and movably on a shaft 3, which is mounted with the ends in the two end gables 4, 5.
  • the end gables are kept together by a rail 9.
  • a movable gable 8 is mounted with a recess down over the rail 9.
  • the gable is guided on the rail by guides 10 provided with rollers.
  • the gable is formed with a recess 11 for the segments so that the gable may pass across these.
  • a replaceable upper roller 2 is provided between the first gable 4 and the movable gable 8, said upper roller being mounted with the ends in guideways 12 in the gables.
  • the upper roller 2 may be raised and lowered with the guideways with respect to the lower roller 1.
  • the bending roller is thus extremely simple, as it just comprises two rollers, viz. a lower roller and an upper roller.
  • this roller may run at different speeds of rotation on the individual segments, which assists the production of cone objects.
  • the segments rotate at a low speed at the top of the cone, while they rotate at a correspondingly high speed at the base of the cone.
  • the end gable 8 When producing e.g. a cone, the end gable 8 is moved relatively to the fixed gable 4 so that the distance fits the length of the plane workpiece to be bent. At the same time, the number of segments between the two gables 4, 8 is adapted, and the excess segments are pushed out into a parking position against the other gable 5.
  • the plane workpiece is positioned with the edge on the lower roller 1, and the upper roller 2 is lowered to form a slight pre-bend, during which a rubber coating 7 on the segments yields. The roller is then caused to rotate to bend the plate workpiece into a truncated cone.
  • roller may also be used for the bending of shells and other cylindrical objects of course.

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Secondary Cells (AREA)
  • Inorganic Insulating Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Press Drives And Press Lines (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

A bending roller, in particular for use in the production of cones or frustoconical objects of plate material, comprises a lower roller (1) and an upper roller (2) movable in a vertical plane relatively to the lower roller. The lower roller consists of a plurality of individual rotatable circular segments (6) on a shaft (3), said segments being provided with a coating (7) of rubber or similar resilient material. When the lower roller is formed by individual segments, the lower roller may run at different speeds of rotation on the individual segments, which assists the production of cone objects.

Description

The present invention relates to a bending roller, in particular for use in the production of cones or frustoconical objects of plate material, and comprising a lower roller and an upper roller, said rollers being mounted with the ends in end gables such that they are mutually movable, preferably in that the upper roller is movable in a vertical plane relatively to the lower roller, and where one of the rollers, preferably the lower roller, consists of a plurality of individual rotatable circular segments on a shaft, said segments being provided with a coating of rubber or similar resilient material (see for example DE-A-1 602 489).
The presumably most widely used form of bending rollers consists of three rollers, viz. two lower rollers and an upper roller movable with respect to these. The roller is suitable for producing container shells and similar cylindrical objects. However, bending of cones or frustoconical objects is not so easy on such a roller.
The object of the invention is to provide a bending roller which is suitable also for the bending of cones or frustoconical objects, and where the length of the roller may be adapted to the length of the objects concerned which are to be bent.
This object is achieved according to the invention with a bending roller of the type stated in the opening paragraph in that it comprises a common end gable in which the rollers are mounted with one end, and another end gable in which the lower roller is mounted with the other end, as well as an end gable which is movable between these two gables and in which the upper roller is mounted with the other end.
An expedient width of the segments is of the same order as the radius of these.
The length of the shaft is preferably greater than the overall length occupied by the segments thereon, while the segments are arranged individually movably on the shaft.
An embodiment of the invention will be described more fully below with reference to the accompanying drawing, in which:
  • fig. 1 is a schematic perspective view of the bending roller.
    • The bending roller comprises a common end gable 4 and another end gable 5 between which a lower roller 1 is mounted. This consists of a plurality of circular segments 6 which are arranged individually rotatably and movably on a shaft 3, which is mounted with the ends in the two end gables 4, 5. The end gables are kept together by a rail 9. A movable gable 8 is mounted with a recess down over the rail 9. The gable is guided on the rail by guides 10 provided with rollers. The gable is formed with a recess 11 for the segments so that the gable may pass across these.
    A replaceable upper roller 2 is provided between the first gable 4 and the movable gable 8, said upper roller being mounted with the ends in guideways 12 in the gables. The upper roller 2 may be raised and lowered with the guideways with respect to the lower roller 1.
    The bending roller is thus extremely simple, as it just comprises two rollers, viz. a lower roller and an upper roller. When one of the rollers, preferably the lower roller, is formed by individual segments, this roller may run at different speeds of rotation on the individual segments, which assists the production of cone objects. The segments rotate at a low speed at the top of the cone, while they rotate at a correspondingly high speed at the base of the cone.
    When producing e.g. a cone, the end gable 8 is moved relatively to the fixed gable 4 so that the distance fits the length of the plane workpiece to be bent. At the same time, the number of segments between the two gables 4, 8 is adapted, and the excess segments are pushed out into a parking position against the other gable 5. The plane workpiece is positioned with the edge on the lower roller 1, and the upper roller 2 is lowered to form a slight pre-bend, during which a rubber coating 7 on the segments yields. The roller is then caused to rotate to bend the plate workpiece into a truncated cone.
    It will be appreciated that the roller may also be used for the bending of shells and other cylindrical objects of course.

    Claims (3)

    1. A bending roller, in particular for use in the production of cones or frustoconical objects of plate material, and comprising a lower roller (1) and an upper roller (2), said rollers being mounted with the ends in end gables such that they are mutually movable, preferably in that the upper roller (2) is movable in a vertical plane relatively to the lower roller (1), and where one of the rollers (1, 2), preferably the lower roller (1), consists of a plurality of individual rotatable circular segments (6) on a shaft (3), said segments being provided with a coating (7) of rubber or similar resilient material, characterized in that it comprises a common end gable (4) in which the rollers (1, 2) are mounted with one end, and another end gable (5) in which the lower roller (1) is mounted with the other end, as well as an end gable (8) which is movable between these two gables (4, 5) and in which the upper roller (2) is mounted with the other end.
    2. A bending roller according to claim 1, characterized in that the width of the segments (6) is of the same order as the radius of these.
    3. A bending roller according to claim 1, characterized in that the length of the shaft (3) is greater than the overall length occupied by the segments (6) thereon, and that the segments are arranged individually movably on the shaft.
    EP98951296A 1997-10-31 1998-11-02 Bending machine Expired - Lifetime EP1034051B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    DK98951296T DK1034051T3 (en) 1997-10-31 1998-11-02 Bending machine

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DK199701243A DK124397A (en) 1997-10-31 1997-10-31 Bending roller
    DK124397 1997-10-31
    PCT/DK1998/000476 WO1999022888A1 (en) 1997-10-31 1998-11-02 Bending machine

    Publications (2)

    Publication Number Publication Date
    EP1034051A1 EP1034051A1 (en) 2000-09-13
    EP1034051B1 true EP1034051B1 (en) 2004-02-25

    Family

    ID=8102628

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98951296A Expired - Lifetime EP1034051B1 (en) 1997-10-31 1998-11-02 Bending machine

    Country Status (6)

    Country Link
    EP (1) EP1034051B1 (en)
    AT (1) ATE260153T1 (en)
    AU (1) AU9737898A (en)
    DE (1) DE69821972T2 (en)
    DK (1) DK124397A (en)
    WO (1) WO1999022888A1 (en)

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3478555A (en) * 1966-12-15 1969-11-18 Kaufmann Tool & Eng Corp Two-roll machine for rolling sheet metal
    DE3342189A1 (en) * 1983-11-23 1985-05-30 Reinhardt Maschinenbau Gmbh, 7032 Sindelfingen Apparatus for rounding sheet plates provided with corner seams (Pittsburgh seam)
    DE3342188A1 (en) * 1983-11-23 1985-05-30 Reinhardt Maschinenbau Gmbh, 7032 Sindelfingen Apparatus for rounding sheet plates provided with vertical seams
    DE3725020C2 (en) * 1986-07-30 1996-05-23 Wilhelm Durst Maschbau Round bending machine for the production of conical pipe sections from sheet metal

    Also Published As

    Publication number Publication date
    DE69821972T2 (en) 2005-01-05
    AU9737898A (en) 1999-05-24
    WO1999022888A1 (en) 1999-05-14
    ATE260153T1 (en) 2004-03-15
    DK124397A (en) 1999-05-01
    EP1034051A1 (en) 2000-09-13
    DE69821972D1 (en) 2004-04-01

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