DK162262B

DK162262B - MACHINE FOR BENDING A METAL PROFILE

Info

Publication number: DK162262B
Application number: DK249383A
Authority: DK
Inventors: Ilmari Johannes Patrikainen
Original assignee: Ilmari Johannes Patrikainen
Priority date: 1982-06-03
Filing date: 1983-06-02
Publication date: 1991-10-07
Also published as: NO166764B; GB8315048D0; FI77996B; GB2120963B; FR2527950A1; SE461446B; FR2527950B1; GB2120963A; SE8303122D0; DK249383D0; FI77996C; DE3321379A1; SE8303122L; DK162262C; FI821973A0; CH659597A5; NO831990L; NO166764C; DK249383A; FI821973L

Description

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DK 162262 BDK 162262 B

Nærværende opfindelse vedrører en maskine til bøjning af en metalprofil, såsom et på kanten anbragt fladjern, til cir-5 kulær- eller skruelinieform for fremstilling af en transportsnegl, hvilken metalprofil af et fremføringsorgan trinvist tilføres mellem et modhold og et i forhold til dette bevægeligt stempel i en ramme, og hvor der er organer til at fastholde metalprofilen under bøjningen, 10The present invention relates to a machine for bending a metal profile, such as a flat iron, to a circular or helical shape for producing a conveyor screw, which metal profile of a feeding member is incrementally applied between a retaining member and a movable piston relative thereto. in a frame and where there are means for holding the metal profile under the bend, 10

En sådan maskine er beskrevet for eksempel i US patentskrift nr. 4.302.959, hvor fjederstål opvikles omkring en aksel til spiral- eller skruefjederform. Det er også inden for fagområdet kendt at vikle profiler til cirkulær form 15 med en valse, hvor profilen indføres med konstant hastighed.Such a machine is described, for example, in U.S. Patent No. 4,302,959, in which spring steel is wound around a shaft for coil or coil spring form. It is also known in the art to wrap profiles to circular shape 15 with a roller in which the profile is introduced at a constant speed.

Det er opfindelsens mål at frembringe en maskine af den kendte art, hvor man med lille kraft kan bøje metalprofiler 20 med store tværsnitsarealer.It is an object of the invention to provide a machine of the prior art in which small profiles 20 with large cross-sectional areas can be bent with little force.

Dette formål opnås ved en maskine af den indledningsvist angivne art, hvilken maskine ifølge opfindelsen er særegen ved, at maskinen omfatter en hydraulikcylinder, der er ind-25 rettet til i en fremføringsbevægelse ved hjælp af et fast^-spændingselement at tilføre metalprofilen, og efter fremføringsbevægelsen at frigive fastspændingselementet, at en låseklinke er placeret mellem fastspændingselementet og bøjningsstedet og er fastgjort til rammen, idet låseklinken 30 er udformet til under bøjningen at fastlåse metalprofilen, og at der er sidestyr til at understøtte metalprofilen i sideretningen.This object is achieved by a machine of the type mentioned in the preamble, which machine according to the invention is peculiar in that the machine comprises a hydraulic cylinder adapted to supply a metal profile in a feeding movement by means of a fixed tensioning element and after the advance movement to release the clamping member, that a locking latch is positioned between the clamping member and the bending site and is secured to the frame, the latching latch 30 being designed to lock the metal profile under bending and lateral guide to support the metal profile in the lateral direction.

En maskine af denne art er særdeles enkel og derfor billig 35 at fremstille. Prøver har vist, at det er muligt ved hjælp af en lille elektromotor med en effekt på nogle på kW atA machine of this kind is extremely simple and therefore inexpensive to manufacture. Tests have shown that it is possible to use a small electric motor with an output of some kW at

DK 162262 BDK 162262 B

2 bøje fladjern til flangeform, når tværsnittet på fladjernet er op til 100 * 20 mm.2 bend flat iron to flange shape when the cross section of the flat iron is up to 100 * 20 mm.

Det er hensigtsmæssigt, at maskinen omfatter et stignings-5 bord, som er indrettet til under metalprofilens bøjning at styre denne på en sådan måde, at metalprofilen bibringes en af stigningsbordets hældning bestemt stigning.Conveniently, the machine comprises a pitch table which is arranged to control it during the bending of the metal profile in such a way that the metal profile is imparted to a pitch as determined by the slope of the pitch table.

Maskinen ifølge opfindelsen beskrives nedenfor ved hjælp af 10 et eksempel med henvisning til en tegning, hvor:The machine according to the invention is described below by means of an example with reference to a drawing, in which:

Fig. 1 viser maskinen ifølge opfindelsen i sideprojektion, og 15 fig. 2 viser samme maskine set fra den retning, hvor ma terialet indføres.FIG. 1 shows the machine according to the invention in side projection, and FIG. 2 shows the same machine from the direction in which the material is introduced.

Maskinen består af en hydraulikcylinder 2, som indfører profilen 1, og af et fastspændingselement 3 på cylinderens 20 bevægende ende. I forbindelse hermed er der udformet en profilbremsende låseklinke 5, som er fastgjort til en ma-skinramme 4. Til maskinens ramme 4 er fastgjort en bøjecy-linder 6, og mellem dennes bevægende ende 7 og rammen 4 er vippeligt monteret en bøjekæbe 8. På den modsatte side af 25 profilen 1 er udformet en akselformet modholdskæbe 9, mod hvilken profilen bøjes. Maskinrammen 4 består af to plader, som udgør sideværts føringer, idet de støtter profilen i sideværts retning. Maskinen omfatter et stigningsbord 10 for en transportsnegls stigning, hvilket stigningsbord 10 30 kan styres ved hjælp af en hydraulikcylinder 11, så stigningsbordet drejer skruen under opnåelse af en ønsket, forud fastlagt stigning.The machine consists of a hydraulic cylinder 2 which introduces the profile 1, and of a clamping element 3 on the moving end of the cylinder 20. In connection therewith, a profile braking locking latch 5 is provided which is attached to a machine frame 4. A bending cylinder 6 is attached to the machine frame 4, and between its moving end 7 and the frame 4 a bending jaw 8 is mounted. the opposite side of the profile 1 is a shaft-shaped retaining jaw 9 against which the profile is bent. The machine frame 4 consists of two plates which form lateral guides, supporting the profile in the lateral direction. The machine comprises a pitching table 10 for the rise of a conveyor auger, which pitching table 10 30 can be controlled by means of a hydraulic cylinder 11, so that the pitching table turns the screw to obtain a desired predetermined pitch.

Profilen 1 indføres i maskinen ifølge fig. 1 øverst til 35 højré> så profilens ende passerer gennem fastspændingsele- * mentet 3 og forbi den bremsende låseklinke 5 til et punktThe profile 1 is inserted into the machine according to FIG. 1 at the top 35 right> so that the end of the profile passes through the clamping element 3 and past the braking locking latch 5 to a point

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3 mellem bøjekæben 8 og modholdskæben 9. Når bøjekæben 8 nu løftes opad ved hjælp af bøjecylinderen - 6, som anført med pilen 12, bøjes profilen et bøjeskridt. Bøjekæben 8 trækkes tilbage til sin nedre stilling, og fremføringshydraulikcy-5 linderen 2 benyttes til fremføring af profilen med et skridt, hvorefter den anden bøjeoperation udføres ved hjælp af bøjecylinderen 6. Under bøjningen holder den bremsende låseklinke 5 profilen ubevægelig ved hjælp af sin vridningseffekt. På denne måde formes en cirkulær ring af pro-10 filen skridt for skridt. Såfremt man yderligere benytter stigningsbordet 10, som hører til maskinen, og som på samme måde skridt for skridt bøjer profilen under frembringelse af en stigning, producerer man en snegl. Til transport af grus er det for eksempel nødvendigt med en transportsnegl, 15 som er fremstillet af tilstrækkeligt tykt materiale og er tilstrækkeligt stift, fordi materialet, som skal transporteres, er tungt og udøver slibepåvirkning på transportsneglen.3 between the bending jaw 8 and the retaining jaw 9. As the bending jaw 8 is now raised upwardly by the bending cylinder - 6, as indicated by the arrow 12, the profile bends a bending step. The bending jaw 8 is retracted to its lower position and the feed hydraulic cylinder 5 is used to advance the profile one step, after which the second bending operation is performed by the bending cylinder 6. During bending, the braking locking claw 5 keeps the profile motionless by its twisting effect. In this way, a circular ring of the pro-10 file is formed step by step. If one further uses the pitch table 10, which belongs to the machine, and which in the same way bends step by step the profile to produce a pitch, produces a snail. For example, for transporting gravel, a transport auger 15 is made of sufficiently thick material and sufficiently rigid because the material to be transported is heavy and exerts an abrasive effect on the transport auger.

20 Det er indlysende for en fagmand inden for området, at længden af det fremføringsskridt, som anvendes mellem to på hinanden følgende bøjninger, kan variere, men mest brugbart er det at bøje kun nogle få grader af en bue, for eksempel 2-4°.It will be obvious to one skilled in the art that the length of the advance step used between two successive bends may vary, but most useful is to bend only a few degrees of an arc, for example 2-4 °. .

Claims

A machine for bending a metal profile (1), such as a flat iron on the edge, for circular or helical shape 5 to produce a conveyor screw, which metal profile (1) of a feeder (2, 3) is incrementally applied between a stop ( 9) and a piston (8) relative to this movable piston (8) in which there are means for holding the metal profile (1) under the bend, characterized in that the machine comprises a hydraulic cylinder (2) which is arranged to apply a metal profile in a feeding movement by means of a clamping element (3) and after releasing the clamping element (3) to release a clamping element (5) between the clamping element (3) and the bending point (8, 9). and is secured to the frame (4), the locking latch (5) being designed to lock the metal profile (1) under the bend and that there is lateral guide to support the metal profile in the lateral direction. •; 0.20 ..

Machine according to claim 1, characterized in that the machine comprises a riser table (10) arranged to control the bend of the metal profile (1) in such a way that the metal profile (1) is imparted to one of the slopes of the riser table (10). definite increase.