DK176637B1 - Method of bending rod material and tools for exercising it - Google Patents
Method of bending rod material and tools for exercising it Download PDFInfo
- Publication number
- DK176637B1 DK176637B1 DK200301941A DKPA200301941A DK176637B1 DK 176637 B1 DK176637 B1 DK 176637B1 DK 200301941 A DK200301941 A DK 200301941A DK PA200301941 A DKPA200301941 A DK PA200301941A DK 176637 B1 DK176637 B1 DK 176637B1
- Authority
- DK
- Denmark
- Prior art keywords
- bending
- rod
- clamping
- heart
- tool
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
- B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
Abstract
Description
i DK 176637 B1in DK 176637 B1
Opfindelsen angår en fremgangsmåde af den i indledningen til krav i angivne art til bukning af stangformet materiale, f.eks. af stænger til armering af beton, og et værktøj af den i indledningen til krav 3 angivne art til 5 udøvelse af fremgangsmåden, ifølge opfindelsen.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method of bending rod-shaped material, e.g. of reinforcing bars for concrete, and a tool of the kind set forth in the preamble of claim 3 for practicing the method of the invention.
Der kendes et bukkeværktøj med en drejelig bukketallerken, hvilken bukketallerken har et ved dennes center monteret ikke drejeligt bukkehjerte. Bukketallerkenen bærer en i afstand fra bukkehjertets center anbragt bolt med en derpå drejeligt.A bending tool is known with a swivel bending plate, the bending plate having a non-swiveling bending heart mounted at its center. The bucket plate carries a bolt spaced from the center of the bucket heart with a swivel thereon.
10 lejret bukkerulle, som af den drejelige bukketallerken kan svinges om dennes center til udøvelse af en forud defineret bukkeoperation til bukning af elementer i form af en eller flere stænger. Stængerne fastholdes under bukkeoperationen af klembakker, der er anbragt uden for bukketallerkenen.10 mounted bending roller, which can be swiveled about its center by the rotatable bending plate to perform a predefined bending operation for bending elements in the form of one or more bars. The rods are retained during the bending operation by clamping trays placed outside the bending plate.
15 En ulempe ved den således kendte teknik er, at efter den sidste af et antal bukkeoperationer, hvox' en stang eller et bundt af stænger er blevet, bukket, vil de bukkede elementer stadig være fastholdt mellem klemfoakkerne via stangmateriale, der befinder sig i klembakkerne og mellem bukkehjertet, og klem-20 bakkerne. Dette stangmateriale skal efter endt bukkeoperation afklippes og repræsenterer dermed et betragteligt spildmateriale på 2,5-5% a £ udgangsmaterialet.A disadvantage of the technique thus known is that after the last of a number of bending operations, where a rod or bundle of rods have been bent, the bent elements will still be retained between the clamping lugs via rod material contained in the clamping trays. and between the buck heart, and the clamp-20 trays. This rod material must be cut after bending operation and thus represents a considerable waste material of 2.5-5% of the starting material.
Det er opfindelsens formål at reducere mængden af dette spildmateriale.The object of the invention is to reduce the amount of this waste material.
25 Dette formål opnås ved nævnte fremgangsmåde, sorn er ejendommelig ved det i den kendetegnende del af krav 1 angivne, samt ved nævnte apparat, som er ejendommeligt ved det i den kendetegnende del af krav 3 angivne.This object is achieved by said method, characterized in that in the characterizing part of claim 1, and by said apparatus which is characteristic in the characterizing part of claim 3.
Derved opnås et minimum af spildmateriale efter den 30 sidste bukkeoperation, som en stang underkastes, fordi stangfast holdel sen under bukkeoperationerne nu sker i hukke værkt tojets hjerte i stedet for et sted beliggende helt uden for bukketallerkenen .Thereby, a minimum of waste material is obtained after the last bending operation, which a rod is subjected to, because the rod-fixed holding during the bending operations now takes place in the chopping tool's heart instead of a place located completely outside the bending plate.
Fremgangsmåden ifølge opfindelsen kan i en foretrukken 35 udførelsesform være ejendommelig ved det i krav 2 angivne.In a preferred embodiment, the method of the invention may be characterized by the method of claim 2.
Efter et. antal bukkeoperationer med det kendte bukke- 2 DK 176637 B1 værktøj er den del af stangen, der befinder sig bag den fremførende klembakke, der fastholder stangen til bukning, for kort til at danne endnu et bukket element. Såvel den del af stangen, der befinder sig før klembakken, som den del af stangen, der 5 befinder sig i klembakken og mellem klembakken og bukkehjertet, hvor stangen skal afklippes, går til spilde.After one. The number of bending operations with the known bending tool is that part of the rod which is behind the advancing clamping tray which holds the rod for bending, too short to form another bent element. Both the part of the rod that is before the clip tray and the part of the rod that is in the clip tray and between the clip tray and the bending heart where the rod is to be cut are wasted.
Efter det samme antal bukninger med bukkeværktøjet ifølge opfindelsen, hvor stangen fastholdes under bukninger af et eller to klem-eller trykbakker, der er indbygget i bukke-10 hjertet, er længden af den stang, der står til rådighed for bukning af et element, blevet forøget med længden af den del af stangen, der ved det kendte toukkeapparat befandt sig mellem klembakken og bukkehjertet. I et vist antal tilfælde vil denne forøgede længde af den resterende del af stangen være til-15 strækkelig til bukning af endnu et element. Herved opnås en tilsvarende besparelse af materiale.After the same number of bends with the bending tool according to the invention, where the rod is held under bends by one or two clamping or pressure trays built into the bending heart, the length of the rod available for bending an element has become increased by the length of the part of the bar which, by the known toucke apparatus, was located between the clamping tray and the bending heart. In a certain number of cases, this increased length of the remaining portion of the bar will be sufficient to bend yet another element. This results in a corresponding saving of material.
Opfindelsen vil i det følgende blive nærmere forklaret under henvisning til tegningen, hvor fig, 1 viser et kendt bukkeværktøj med bukkehjerte, 20 fig. 2 det i fig. 1 viste værktøjet med tilført stang, fig. 3 første bukkeoperation påbegyndes, fig. 4 anden bukkeoperation er afsluttet, fig. 5 et bukkeværktøj ifølge opfindelsen, fig. 6 det i fig. 5 viste med tilført stang, 25 fig. 7 første bukkeoperation påbegyndes med stangen fastholdt i selve værktøjets hukkehjerte, og fig. 8 en stangfremføringstang med griber og to kl errtmee lementer til at føre stangenden helt tæt til bukkehjertet.The invention will be explained in more detail below with reference to the drawing, in which: Fig. 1 shows a known bending tool with a bending heart; 2 shows the embodiment of FIG. 1, with the rod supplied, FIG. 3 first bending operation is started, fig. 4 another bending operation is completed, FIG. 5 shows a bending tool according to the invention; FIG. 6 shows the embodiment of FIG. 5 shown with a feed rod, FIG. 7 the first bending operation is started with the rod held in the tool heart of the tool, and FIG. 8 a rod feed rod with gripper and two claw members with elements to guide the rod end very close to the bending heart.
I fig. 1 ses et eksempel på en normal opbygning af et 30 bukkeværktøj. Det består af en om sit center drejelig bukketallerken 1, i hvis åbne center der er anbragt et udrejeligt bukkehjerte 2, der består af to over for hinanden anbragte halvdele med en mellemliggende stangkanal. Bukkehjertet 2 kan hæves og sænkes mellem en stilling over og en stilling under 35 bukketallerkenen 1. Til bukketallerkenen 1 er fastgjort en bolt, der bærer en derom drejelig bukkerulle 3.In FIG. Figure 1 shows an example of a normal build of a bending tool. It consists of a bending plate 1 pivotable about its center, in the open center of which is a removable bending heart 2, consisting of two opposite halves with an intermediate rod channel. The bending heart 2 can be raised and lowered between a position above and a position below the bending plate 1. A bolt carrying a rotatable bending roller 3 is attached to the bending plate 1.
3 DK 176637 B1 I fig. 2 ses et bukkeværktøj med en i en stangkanal i-lagt stang 4, der ved hjælp af bukkerullen 3 på bolten bliver bukket om bukkehjerfcets kontur 5. På grund af bukketallerkenens 1 drej©bevægelse vil stangen 4 være tilbøjelig til at blive 5 trukket ud af hjertet i pilens 6 retning.3 DK 176637 B1 In fig. 2, a bending tool is seen with a rod 4 inserted in a rod channel, which is bent by the bending roller 3 on the bolt about the contour of the bending heart 5. Due to the rotation © of the bending plate 1, the rod 4 will tend to be pulled out of the the heart in the direction of the arrow 6.
For at undgå denne udtrækning anbringes ifølge kendt teknik klembakker 7 før og efter bukketallerkenen l, og fig. 3 viser en sådan placering. Klembakkerne 7 er aktiveret, medens bukningen står på, og fastholder herunder stangen. Stangen fø-10 res frem ved hjælp af drivrullemekanismer 8 eller 9, Klembakkerne 7 og drivrul lemekanismerne 8 og 9 er nedsænkel i ge for at undgå kollision mied de bøjede ender af stangen. Visse af de geometriske betingelser for de stænger, der skal bukkes, er givet ved afstandene mellem de respektive drivrullemekanismer 15 8 og 9 og klembakker 7, Drivrul1emekanismen 9 og klembakken 7 i højre side kan være nedsænket for at undgå kollision med den bukkede del af stangen.In order to avoid this extraction, according to the prior art, clamping trays 7 are placed before and after the bending plate 1, and fig. 3 shows such a location. The clamping jaws 7 are activated while the bend is on, and holds the rod therewith. The rod is advanced by means of drive roller mechanisms 8 or 9, the clamping jaws 7 and drive roller body mechanisms 8 and 9 are immersed in ge to avoid collision with the bent ends of the rod. Certain of the geometric conditions of the rods to be bent are given by the distances between the respective drive roller mechanisms 15 8 and 9 and clamping jaws 7, the drive roller mechanism 9 and the clamping jaw 7 on the right side may be submerged to avoid collision with the bent portion of the rod .
Som vist på fig. 4 kan bukkehjertet være drejet 180° og drivrullemekanismen i venstre side kan være nedsænket. Des-20 uden ses det at stykket 10, der befinder sig mellem bukkehjertet og klembakken samt i selve klembakken må udvise en vis mindstelængde for at klembakken skal kunne fastholde stangen under bukkeoperationen. Der kendes også systemer, hvor klembakke funkt ionen bliver udvirket af drivrullemekanismen 8 og 9.As shown in FIG. 4, the bending heart may be rotated 180 ° and the drive roller mechanism on the left side may be submerged. Furthermore, it is seen that the piece 10, which is between the bending heart and the clamping tray as well as in the clamping tray itself, must exhibit a certain minimum length in order for the clamping tray to be able to hold the rod during the bending operation. Also known are systems in which the clamping tray function is actuated by the drive roller mechanism 8 and 9.
25 Den geometriske begrænsning er den samme.25 The geometric constraint is the same.
Da det er opfindelsens formål at formindske materialespi Idet er det dermed også formålet at begrænse de geometriske grænser til et minimum ved en hjælp af en dertil egnet klemme-fremgangsmåde og transportfremgangsmåde. Med henblik herpå ses 3 0 i fig 5 en klembakke i form af et klemmestempel 14 i bukkeir} er-tet 11 som et eksempel på et værktøj ifølge opfindelsen. For at optimere de geometriske grænsede tingel ser som beskrevet ovenfor må det stangmateriale, der skal bukkes, efter sin fremføring fastklemmes i selve bukkehjertets 11 stangkanal. Bukkehjertet 35 11 er sikret mod drejning og anbragt i centrum af en bukketallerken 12. Bukketallerkenen 12 kan dreje sig om bukkehjertet DK 176637 B1 4 11. Klemningen sker ved hjælp af et af stål hærdet trykelement 13, der trykkes mod stangen af et klemmestempel 14 eller 15. Bukketallerkenen 12 kan dreje sig om bukkehjertet. 11. Betjeningen af klemrnestemplet 14 kan ske hydraulisk, pneumatisk 5 eller mekanisk eller i en kombination heraf.Since it is the object of the invention to reduce material stress It is thus also the object to limit the geometric boundaries to a minimum by means of a suitable clamping method and transport method. To this end, in Fig. 5, a clamping tray in the form of a clamping piston 14 in the buckle 11 is seen as an example of a tool according to the invention. In order to optimize the geometric boundary rungs as described above, the rod material to be bent after its advance must be clamped in the rod channel of the bending heart 11 itself. The bending heart 35 11 is secured against rotation and placed in the center of a bending plate 12. The bending plate 12 can revolve around the beating heart DK 116637 B1 4 11. The clamping is done by means of a steel hardened pressure element 13 pressed against the rod by a clamping piston 14 or 15. The bucket plate 12 may be about the bending heart. 11. The operation of the clamping piston 14 can be done hydraulically, pneumatically or mechanically or in a combination thereof.
Disse klemeiementer 13,14 og 13,15 kan på grund af den foreliggende begrænsede plads i selve bukkehjertet kun yde en begrænset klemkraft.These clamping elements 13,14 and 13,15, because of the limited space available in the bending heart itself, can only provide a limited clamping force.
En anden udførelsesform for opfindelsen giver et 10 specielt forløb for klemmefunktionen cg en speciel form af bukkehjertet; fig. S viser denne situation. Under bøjningsoper at ionen presses det ene frykelement af sit klemmestempel 15 mod den side af stangen, der ex- modsat bolten med sin herom drejeligt lejrede bukkerulle 16. Under denne ensidige klemning 15 ligger stangen an mod en skarp kant 17 på bukkehjertet. Denne kant og klemrnestemplet forhindrer en umiddelbar længdeforskydning af stangen i stangkanalen ved bukkeoperationens begyndelse. De to halvdele af bukkehjertet er hver udstyret med mindst en skarp kant 17 som vist. Under en bukkeoperation skal 2 0 den på den ene side af stangen værende bolt med den derpå drejeligt lejrede bukkerulle 3 bringes i funktion ved drejning af bukketallerkenen. Herunder bringes det på den modsatte side af stangen indbyggede klemmestempel 15 i funktion og presser derved stangen mod den skarpe kant 17 på den modsatte halvdel 25 af bukkehjertet. Stangen er således fastholdt under selve bukkeoperationen mellem en skarp kant og det ene klemmestempel.Another embodiment of the invention provides a special course of the clamping function and a special form of the bending heart; FIG. S shows this situation. During the bending operation of the ion, one friction element of its clamping piston 15 is pressed against the side of the rod opposite to the bolt with its pivotally mounted bending roller 16. During this one-sided clamping 15, the rod abuts a sharp edge 17 on the bending heart. This edge and the clamp piston prevent an immediate longitudinal displacement of the rod in the rod channel at the beginning of the bending operation. The two halves of the bending heart are each equipped with at least one sharp edge 17 as shown. During a bending operation, the bolt on one side of the rod with the pivotally mounted bending roller 3 must be actuated by turning the bending plate. Below this, the clamping piston 15 built into the opposite side of the rod is actuated, thereby pushing the rod against the sharp edge 17 on the opposite half 25 of the bending heart. The rod is thus retained during the bending operation itself between a sharp edge and one clamping piston.
I fig- 7 ses et videre forløb af den bukkeoperation, der er tilrettelagt som vist i fig. 6. Bolten med bukkerullen har ved drejning af bukketallerkenen bukket stangen i en 30 vinkel. Stangen er herunder blevet trykket mod en skarp kant 18 på den ene halvdel af bukkehjertet og en anlægsflade 19 på den modsatte hjertehalvdel, hvilket medvirker at fastholde atangen i dens stilling mellem bukkehjertets to halvdele under bukningen. Udover' at stangen bliver fastholdt af et klemmestempel, 35 medvirker stangen således selv til sin fastholdelse.Fig. 7 shows a further course of the bending operation arranged as shown in fig. 6. By turning the bucket plate the bolt with the bending roller bends the rod at an angle. Below, the bar has been pressed against a sharp edge 18 on one half of the bending heart and abutment 19 on the opposite half of the heart, which helps to hold the tongue in its position between the two halves of the bending heart during bending. Thus, in addition to holding the rod by a clamping piston, the rod itself contributes to its retention.
I fig. 8 ses en griber 2 0 raed to klemeiementer 21 og i 5 DK 176637 B1 22, der ex' ført ind over bukketallerkenen, og som fastholder den yderste ende af en stang, der er blevet bukket. Her hax' den del af stangen, der var til rest efter den forrige bukkeopsra-tion, haft en længde, der netop var tilstrækkelig til bukning 5 af endnu et element. I dette tilfælde er spild af materiale helt undgået,In FIG. 8, a gripper 20 is seen holding two clamping elements 21 and in 5 DK, which exerted over the bending plate, and which holds the outer end of a rod which has been bent. Here, the portion of the bar remaining after the previous bending operation has had a length just sufficient for bending another element. In this case, waste of material is completely avoided,
De i bukkehjertets stangkanal fastholdte stænger kan som nævnt fastholdes i hjertet ved at et enkelt klemmestempel presser stangen eller bundtet af stænger i kanalen mod en skarp 10 kant i kanalvæggen under bukningen, men fastholdelsen kan også ske ved at at to klemstempler, evt, hver med en vinkelret på stangkanalbunden forløbende skarp kant på den stempelende der skal i indgreb med stangen/stængerne til deres fastholdelse.As mentioned, the rods held in the bending heart channel can be held in the heart by a single clamping plunger pressing the rod or bundle of rods in the channel against a sharp edge of the channel wall during the bending, but the holding can also be done by two clamps, each with a perpendicular to the rod channel bottom extending sharp edge of the piston end to engage the rod (s) for their retention.
Til forøgelse af kraften mod stangen/stængerne i 15 bukkehjertets stangkanal kan der ledes højtrykshydraulvæske op til klemmestemplerne i værktøjet og dette høj tryk kan være opnået ud fra en eller flere trykforstærkerenheder, der f. eks hæver trykket i bukkehjertet til 500-5000 bar.To increase the force against the rod / rods in the bending heart channel of the bending heart, high pressure hydraulic fluid can be fed up to the clamp pistons in the tool and this high pressure can be obtained from one or more pressure amplifier units which, for example, raises the pressure in the bending heart to 500-5000 bar.
Opfindelsen er ingenlunde begrænset til de i nærværende 2 0 ansøgning angivne ud føre Ises former, idet andre udførelses former kan fremstilles inden for opfindelsens rammer.The invention is by no means limited to the embodiments set forth in the present application, since other embodiments may be made within the scope of the invention.
Claims (4)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200301941A DK176637B1 (en) | 2003-12-24 | 2003-12-24 | Method of bending rod material and tools for exercising it |
| EP04803056A EP1711285B1 (en) | 2003-12-24 | 2004-12-22 | Method and tool for bending bar material |
| PCT/DK2004/000905 WO2005061144A1 (en) | 2003-12-24 | 2004-12-22 | Method and tool for bending bar material |
| DE602004026639T DE602004026639D1 (en) | 2003-12-24 | 2004-12-22 | METHOD AND TOOL FOR BENDING ROD MATERIAL |
| AT04803056T ATE464134T1 (en) | 2003-12-24 | 2004-12-22 | METHOD AND TOOL FOR BENDING BAR MATERIAL |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200301941A DK176637B1 (en) | 2003-12-24 | 2003-12-24 | Method of bending rod material and tools for exercising it |
| DK200301941 | 2003-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK200301941A DK200301941A (en) | 2005-06-25 |
| DK176637B1 true DK176637B1 (en) | 2009-01-05 |
Family
ID=34707213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK200301941A DK176637B1 (en) | 2003-12-24 | 2003-12-24 | Method of bending rod material and tools for exercising it |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1711285B1 (en) |
| AT (1) | ATE464134T1 (en) |
| DE (1) | DE602004026639D1 (en) |
| DK (1) | DK176637B1 (en) |
| WO (1) | WO2005061144A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITUD20110036A1 (en) * | 2011-03-11 | 2012-09-12 | Piegatrici Macch Elettr | BENDING MACHINE FOR METAL BARS, SUCH AS ROUNDS OF ARMOR OR SIMILAR, AND RELATIVE BENDING PROCEDURE |
| ITUD20110061A1 (en) * | 2011-04-18 | 2012-10-19 | Piegatrici Macch Elettr | BENDING MACHINE FOR METALLIC BARS, AS ROUNDS FOR ARMOR OR SIMILAR |
| IT201800020911A1 (en) * | 2018-12-21 | 2020-06-21 | Schnell Spa | SHAPING GROUP FOR BENDING METALLIC PROFILES IN BARS |
| CN110227746A (en) * | 2019-07-24 | 2019-09-13 | 江苏浩恩机床有限公司 | A kind of bar shaped plate bending machine tool bending mechanism |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1024224B (en) * | 1974-11-15 | 1978-06-20 | Del Fabbro Remigio | MAOCHINA CONTINUOUS SUPPLY SUPPLY BRACKET WITH MATERIAL RECOVERY AND RELEVANT ME TODO OF OBERARE FOR THE QUSTRUTION OF THE SAID BRACKETS |
| DE3546448A1 (en) * | 1985-03-12 | 1986-09-25 | Alpha Maschinenbau AG, Zürich | Bending apparatus |
| FR2715334B1 (en) * | 1994-01-21 | 1996-03-08 | Automatisation Ste Francaise | Machine for bending a material in a substantially straight form. |
| AT406744B (en) * | 1998-11-20 | 2000-08-25 | Filzmoser Franz | WIRE BENDING MACHINE, IN PARTICULAR FOR BENDING STEEL WIRE |
| ITBO20000602A1 (en) * | 2000-10-16 | 2002-04-16 | Schnell Spa | METHOD AND EQUIPMENT FOR BENDING PROFILES AND SIMILAR ACCORDING TO PROGRAMMABLE BENDING RAYS |
| ITBO20010208A1 (en) * | 2001-04-06 | 2002-10-06 | Me Sa Di Terenzi Gianfranco | METHOD FOR BENDING METAL PROFILES IN BARS AND MACHINES TO IMPLEMENT THIS METHOD |
-
2003
- 2003-12-24 DK DK200301941A patent/DK176637B1/en not_active IP Right Cessation
-
2004
- 2004-12-22 DE DE602004026639T patent/DE602004026639D1/en active Active
- 2004-12-22 WO PCT/DK2004/000905 patent/WO2005061144A1/en active Application Filing
- 2004-12-22 EP EP04803056A patent/EP1711285B1/en not_active Not-in-force
- 2004-12-22 AT AT04803056T patent/ATE464134T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE464134T1 (en) | 2010-04-15 |
| DK200301941A (en) | 2005-06-25 |
| EP1711285A1 (en) | 2006-10-18 |
| DE602004026639D1 (en) | 2010-05-27 |
| WO2005061144A1 (en) | 2005-07-07 |
| EP1711285B1 (en) | 2010-04-14 |
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| Date | Code | Title | Description |
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| PBP | Patent lapsed |
Effective date: 20131231 |