EP1089045B1 - Procédé pour le maniement d'articles ainsi qu'un four à sole tournante à cet effet - Google Patents

Procédé pour le maniement d'articles ainsi qu'un four à sole tournante à cet effet Download PDF

Info

Publication number
EP1089045B1
EP1089045B1 EP00121081A EP00121081A EP1089045B1 EP 1089045 B1 EP1089045 B1 EP 1089045B1 EP 00121081 A EP00121081 A EP 00121081A EP 00121081 A EP00121081 A EP 00121081A EP 1089045 B1 EP1089045 B1 EP 1089045B1
Authority
EP
European Patent Office
Prior art keywords
pallet
rotary hearth
workpieces
rows
workpiece
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
EP00121081A
Other languages
German (de)
English (en)
Other versions
EP1089045A3 (fr
EP1089045A2 (fr
Inventor
Karlheinz Schweikert
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.)
Karl Heess GmbH and Co Maschinenbau
Original Assignee
Karl Heess GmbH and Co Maschinenbau
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 Karl Heess GmbH and Co Maschinenbau filed Critical Karl Heess GmbH and Co Maschinenbau
Publication of EP1089045A2 publication Critical patent/EP1089045A2/fr
Publication of EP1089045A3 publication Critical patent/EP1089045A3/fr
Application granted granted Critical
Publication of EP1089045B1 publication Critical patent/EP1089045B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0037—Rotary furnaces with vertical axis; Furnaces with rotating floor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces

Definitions

  • the invention relates to a method for manipulating carburized workpieces, in which the stored on pallets workpieces or workpiece magazines placed in a rotary hearth furnace in a number of a predetermined number of workpiece rows, removed after carburizing the rotary hearth furnace and fed to a given Preßstationenress hardness press, and on each pallet one of the Preßstationenress corresponding number of workpieces or workpiece magazines are stored.
  • the pallets are arranged in a rotary kiln in a circular row, wherein at a loading point of Rotary hearth furnace each taken a pallet with finished carburized workpieces or workpiece magazines and the rotary hearth furnace is loaded with a green bearing pallets (see "rotary hearth furnace for gas carburizing with subsequent press hardening" by T. Winstrot and K. Ritzka, 1989).
  • US-A-4,602,904 relates to a rotary hearth furnace with a grate on which are arranged two concentric rows of workpieces.
  • the invention has for its object to make the aforementioned manipulation so that both the rotary hearth furnace and the hardness press are better utilized.
  • the invention solves the problem with a method and a rotary hearth furnace with the respective features of the independent claims.
  • the pallets are arranged in the rotary hearth furnace in such a number of rows that the number of workpieces is a multiple of Preßstationenress.
  • the invention makes it possible, for example, smaller pressing presses with a few press stations with larger rotary hearth furnaces, in which a larger number of rows of workpieces can be accommodated to couple, because the previous equality of Preßstationeniere with the number of workpieces no longer must be complied with.
  • smaller hardening presses can be coupled with larger rotary hearth furnaces, without resulting in idle times.
  • a manipulator 4 of a generally designated 1 workpiece hardening plant is placed next to which on one side of a hardening press 5 and opposite to the other side of a magazine 6 are stored in this stored green bodies 7.
  • the manipulator 4 is designed so that on its boom, not shown, a pallet 10 takes place, which in the illustrated example, two workpieces 12, 14 carries. Instead of the two workpieces 12, 14, two workpiece magazines can be placed on the pallet 10.
  • the hardening press 5 is equipped with two pressing stations 8, 9, so that two carburized workpieces or two workpiece magazines with carburized workpieces can be processed simultaneously with one pressing operation. Not shown is one of the hardening press 5 usually upstream quenching station for the carburized, hot workpieces.
  • the rotary hearth furnace 2 has a plurality of floors with concentrically stacked, annular grids on which pallets such as the pallet 10 parked and from which the pallets can be removed when they are just behind the feed opening 3.
  • Each pallet carries 10 as many workpieces 12, 14 or workpiece magazines, in the present case two pieces, as the hardening press can work on workpieces simultaneously, ie a number of workpieces or workpiece magazines, which is equal to the number of pressing stations.
  • the pallets are arranged in concentric rows and can be placed in each grate floor from the boom of the manipulator 4 through the feed opening 3 or removed from this. For ease of illustration, only a single grid floor is shown in the figures.
  • FIG. 1 shows a workpiece hardening plant 1 in which the manipulator 4 operates a rotary hearth furnace 2, on the surface of which four concentric rows of workpieces 16, 17, 18, 19 can be placed, and a hardening press 5 with two press stations 8, 9.
  • the workpieces or workpiece magazines 26, 27 adjacent to the same radius are located on a single pallet 36 and the other two workpieces or workpiece magazines 28 and 29 of the workpiece rows 18 adjacent to one another on the same radius, and 19 on another Palette 38, so that both pallets 36 and 38 are substantially at the same radius.
  • Only four pairs of opposite pairs of pallets are shown in Figure 1 in the illustrated Rostetagen. In fact, there are usually a lot more pallets in a grid, arranged in concentric rows.
  • the two rows of pallets to which the pallets 36 and 38 belong the four rows of workpieces 16, 17, 18 and 19. It can be seen that the number of rows of work a multiple, here twice, the number of press stations, here the both pressing stations 8 and 9, is.
  • the two pallets 36 and 38 are successively at the feed opening 3, it is for removing the inner pallet 38 and their replacement by a green loaded pallets only necessary to provide in the main direction of rotation 51 of the grate 50 next to the outer pallet 36 a free space, the is not occupied by a pallet, as well as to equip the grate drive with a reversing device for short-term reversal of direction for the rust.
  • the manipulator 4 operates a hardening press with a pressing station and a rotary hearth furnace with two rows of workpieces.
  • each pallet Since the number of recorded on a pallet workpieces or workpiece magazines must correspond to the Preßstationenress, carries here each pallet only a single workpiece or workpiece magazine.
  • the main direction of rotation of the grate 50 is denoted by 51, so it points in the opposite direction of the clock hand.
  • On the grate 50 are two concentric rows 52, 54 parked from pallets, here, since each pallet carries a single workpiece or workpiece magazine, equal to the number of workpiece rows.
  • the pallets 55, 57 carry a workpiece or workpiece magazine standing just before the end of the carburizing time
  • the pallets 56, 58 each have a finished carburized workpiece or workpiece magazine
  • the pallets 62, 64, 66 each have a workpiece or workpiece magazine to be carburized.
  • the pallets 55, 57 are just in front, the pallets 56, 58 exactly and the pallets 62, 64, 66 in the main direction of rotation 51 behind the feed opening.
  • Radially in front of the pallet 62 is located on the grate 50, a free space 80, which is occupied with no pallet.
  • the boom of the manipulator 4 removes the pallet 58 ( Figure 3). Then, the direction of rotation of the grate drive is reversed until the inner pallet 56 in the main direction 51 adjacent inner pallet 62 is located behind the feed opening. Then the rust drive is stopped and the free space 80 is occupied by a pallet 70 from the boom, which carries a green body ( Figures 4 and 5). Thereafter, the grate 50 is further rotated in the main direction of rotation 51 until the inner pallet 56 is accessible through the feed opening for the boom ( Figure 6). The boom then clears the pallet 56 from the grate 50 and replaces it with a pallet 72 carrying a green body ( Figures 7 and 8).
  • a rotary hearth furnace with n possible rows of workpieces to a hardening press having only a number of pressing stations, which in the mathematical sense is a true divisor of n, if there is a sufficient number of free spaces.
  • a rotary hearth furnace permits six rows of workpieces per grate, it can be coupled to either two press presses or to three press stations using a hardening press, with three or two rows of pallets in the rotary hearth furnace are housed. If three rows of workpieces per grate are possible, a hardening press with one pressing station is sufficient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Charging Or Discharging (AREA)

Claims (3)

  1. Procédé de manipulation de pièces d'oeuvre devant subir un traitement thermique, notamment de pièces d'oeuvre à carburer, dans lequel les pièces d'oeuvre ou magasins de pièces d'oeuvre déposées sur des palettes sont introduites dans un four à sole tournante en plusieurs rangées correspondant à un nombre prédéterminé de rangées de pièces d'oeuvre, retirées du four à sole tournante après le traitement thermique, notamment après la carburation, et amenées à une presse de trempe comportant un nombre prédéterminé de postes de presse, et un nombre de pièces d'oeuvre ou de magasins de pièces d'oeuvre correspondant au nombre de postes de presse est déposé sur chaque palette, les palettes (36, 38 ; 55, 57 ; 56, 58 ; 64, 66) étant disposées dans le four à sole tournante (2, 50) en un nombre de rangées tel que le nombre de rangées de pièces d'oeuvre soit égal à un multiple du nombre de postes de presse, caractérisé en ce qu'au moins un espace libre (80), qui n'est pas occupé par une palette, est prévu à côté des palettes (56, 58) situées sur le même rayon à prélever du four à sole tournante (2, 50).
  2. Procédé selon la revendication 1, caractérisé en ce que, d'une grille du four à sole tournante occupée par deux rangées concentriques de palettes, il est prélevé une palette située au niveau d'une ouverture de chargement de la rangée extérieure de palettes, en ce que l'espace libre (80) est ensuite pivoté vers l'ouverture de chargement, qu'une nouvelle palette (70) est déposée sur l'espace libre (80), qu'une palette arrière (56) est pivotée devant l'ouverture de chargement, retirée du four à sole tournante et remplacée par une autre palette.
  3. Four à sole tournante comportant un ou plusieurs étages de grilles superposées, plusieurs rangées concentriques (52, 54) de palettes chargées de pièces d'oeuvre ou de magasins de pièces d'oeuvre étant positionnées sur chaque grille (50), caractérisé par un entraînement de grille avec un dispositif d'inversion pour l'inversion temporaire du sens de rotation de la grille.
EP00121081A 1999-10-01 2000-09-28 Procédé pour le maniement d'articles ainsi qu'un four à sole tournante à cet effet Expired - Lifetime EP1089045B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19947482A DE19947482C2 (de) 1999-10-01 1999-10-01 Verfahren zum Manipulieren von Werkstücken sowie Drehherdofen hierfür
DE19947482 1999-10-01

Publications (3)

Publication Number Publication Date
EP1089045A2 EP1089045A2 (fr) 2001-04-04
EP1089045A3 EP1089045A3 (fr) 2003-07-16
EP1089045B1 true EP1089045B1 (fr) 2007-01-03

Family

ID=7924266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121081A Expired - Lifetime EP1089045B1 (fr) 1999-10-01 2000-09-28 Procédé pour le maniement d'articles ainsi qu'un four à sole tournante à cet effet

Country Status (4)

Country Link
US (1) US6336808B1 (fr)
EP (1) EP1089045B1 (fr)
AT (1) ATE350635T1 (fr)
DE (2) DE19947482C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009001012B3 (de) 2009-02-19 2010-06-10 Ema Indutec Gmbh Härtemaschine und Verfahren zum induktiven Fixturhärten
DE102012019653A1 (de) 2012-10-08 2014-04-10 Ipsen International Gmbh Gasdichter schutzgasbegaster Industrieofen, insbesondere Kammerofen, Durchstoßofen, Drehherdofen oder Ringherdofen
RU2706266C1 (ru) * 2019-02-22 2019-11-15 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Способ укладки на под кольцевой печи цилиндрических непрерывно-литых заготовок
CN110835721A (zh) * 2019-11-27 2020-02-25 特诺恩技术（天津）有限公司 大型环形转底式气体渗碳炉的装出料机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2499926A (en) * 1947-04-22 1950-03-07 Donald W Lloyd Continuous circular ingot-heating furnace
US3741553A (en) * 1970-07-07 1973-06-26 Beloit Corp Method and apparatus for forming containers by blow-molding
US4602904A (en) * 1985-06-12 1986-07-29 Amsted Industries Incorporated Method of obtaining temperature of an object being heat treated
DE4115235C1 (fr) * 1991-05-10 1992-12-24 Vegla Vereinigte Glaswerke Gmbh, 5100 Aachen, De
DE29608569U1 (de) * 1996-05-13 1996-08-14 Karl Heess GmbH & Co Maschinenbau, 68623 Lampertheim Vorrichtung zum Aufnehmen und Umsetzen von Wärmebehandlungsschritten zu unterwerfenden Werkstücken
DE29808569U1 (de) 1998-04-30 1998-11-05 Wittmann Kunststoffgeräte Ges.m.b.H., Wien Temperierkreislauf für Spritzgußformen

Also Published As

Publication number Publication date
DE19947482A1 (de) 2001-07-19
EP1089045A3 (fr) 2003-07-16
ATE350635T1 (de) 2007-01-15
US6336808B1 (en) 2002-01-08
DE50013923D1 (de) 2007-02-15
EP1089045A2 (fr) 2001-04-04
DE19947482C2 (de) 2002-07-11

Similar Documents

Publication Publication Date Title
DE3929724C2 (fr)
EP3812307B1 (fr) Dispositif de stockage par empilement
CH656338A5 (de) Montagestrecke mit mehreren einzel-arbeitsplaetzen.
EP2928795B1 (fr) Installation de tri et procédé de tri d'objets dans une installation de transport
EP1089045B1 (fr) Procédé pour le maniement d'articles ainsi qu'un four à sole tournante à cet effet
EP3782932A1 (fr) Dispositif de stockage par empilement
DE2744446B2 (de) Verfahren und Einrichtung zum Entstapeln und Stapeln von Kassetten von und auf Ofenwagen
DE3934030C2 (fr)
DE2722712A1 (de) Vorrichtung zum voruebergehenden speichern von fliesen u.dgl.
DE19858582C2 (de) Anlage zum thermischen Behandeln von metallischen Werkstücken
EP0736359A1 (fr) Machine outil avec tambour indexable
WO2005050112A2 (fr) Installation et procede permettant de traiter thermiquement des pieces a usiner
EP0786635A2 (fr) Installation pour le chargement et le déchargement d'articles céramiques des superstructures de tables de cuisson
DE2229254A1 (de) Magazin zum stapeln und zufuehren von gegenstaenden zu arbeitsplaetzen
DE3006375A1 (de) Verfahren zum ent- und beladen von tunnelofenbrennwagen, insbesondere beim brennen von flachgeschirrteilen, wie porzellantellern o.dgl.
DE2146044C3 (de) Einrichtung zur Härtung von Werkstücken, insbesondere Tellerrädern
DE3431383A1 (de) Einrichtung zum zusammenfuegen von stapeln aus quadern
DE2200646B2 (fr)
DE3011275C2 (de) Vorrichtung zum Verteilen von auf einem Stapelplatz gesammelten Platten
DE1019412B (de) Induktionsofenanlage fuer die Erwaermung von groesseren magnetischen Gegenstaenden in zwei Stufen
DE4221499C2 (de) Vorrichtung und Verfahren zum Transportieren von Werkstücken
DE1684023C (de) Vorrichtung zum Pressen und geordne ten Aneinanderreihen prismatischer Steine insbesondere Dolomitsteine mit im wesent liehen trapezförmiger Grundflache
DE2229108C3 (de) Einrichtung zum lagenweisen Stapeln von Gegenständen, insbesondere von Ziegelsteinen
EP4230939A1 (fr) Dispositif de chargement pour un chariot de four
DE8425273U1 (de) Umstapelmaschine, insbesondere für Kalksandsteine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20030825

AKX Designation fees paid

Designated state(s): AT DE FR GB IT SE

17Q First examination report despatched

Effective date: 20041026

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50013923

Country of ref document: DE

Date of ref document: 20070215

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070403

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20070103

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070103

26N No opposition filed

Effective date: 20071005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070103

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070103

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20110926

Year of fee payment: 12

Ref country code: DE

Payment date: 20110928

Year of fee payment: 12

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 350635

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130403

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120928

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50013923

Country of ref document: DE

Effective date: 20130403