US3847291A - Workpiece gripper having vibrating means thereon - Google Patents

Workpiece gripper having vibrating means thereon Download PDF

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Publication number
US3847291A
US3847291A US00324145A US32414573A US3847291A US 3847291 A US3847291 A US 3847291A US 00324145 A US00324145 A US 00324145A US 32414573 A US32414573 A US 32414573A US 3847291 A US3847291 A US 3847291A
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US
United States
Prior art keywords
workpiece
clamping members
holder
furnace
mounting
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
US00324145A
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English (en)
Inventor
G Seulen
F Scheffler
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.)
SMS Elotherm GmbH
Original Assignee
AEG Elotherm GmbH
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 AEG Elotherm GmbH filed Critical AEG Elotherm GmbH
Application granted granted Critical
Publication of US3847291A publication Critical patent/US3847291A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F27B9/20—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 substantially straight path tunnel furnace
    • F27B9/22—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 substantially straight path tunnel furnace on rails, e.g. under the action of scrapers or pushers
    • F27B9/225—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 substantially straight path tunnel furnace on rails, e.g. under the action of scrapers or pushers the charge being subjected to an additional manipulation along the path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J17/00—Forge furnaces
    • B21J17/02—Forge furnaces electrically heated
    • 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
    • F27D3/18—Charging particulate material using a fluid carrier

Definitions

  • ejector means at the furnace exit comprising. ejecting. elements which are mountedin aholder and adapted to grip the flanks of the workpiece and to. move. it forwards, the holder being supportedso that. it can move. in aidirectionnormal to. the direction'of advanceof. the work, and avibratorrbeing coupledthereto.
  • their holder is preferably mounted. with the. interposition of elastieelements.
  • the .holder is supportedina manner permittingrotationof theelements about an axisparallel to. the direction of workpiece. advance.
  • the ejector elements may be constituted by clamping members and the holder may incorporate means for opening and closing. the clamping members.
  • the holder together with the vibrator may. with advantage be mounted in a carriage or slide which is movable in. the direction of workpiece advance so that by moving the slide the workpiece gripped by. the clamping members can be withdrawn from the furnace exit.
  • the ejector elements for withdrawing the workpieces in advancing direction are constituted by driven bodiesadapted-to roll on the workpiece surface, particularly in the form of rollers, cylinders or endlesstrav'el ling chains.
  • FIG. 1 shows the exitof an'inductively heatedpusher furnace for heating small steel ingots and shows associ-- ated ejector equipment adjacent the furnace exit.
  • FIG. 2. shows the ejector equipment in a section taken on the. line A B in FIG. 1.
  • FIG. 3 shows a modified holder for the clamping elements.
  • FIG. 4 shows a further embodiment of the ejector.
  • the pusher furnace is equipped with a liquid-cooled induction coill andcontains slide rails 2 for supporting small steel ingots 3 that are to be heated.
  • Adjacent the furnace exit is an ejector device comprising tong-like clamping members4 mounted ona holder 5 which contains means -(:notshown) for con trollably openingand closing clamping members 4;
  • the holder S- is mounted on a slide 8'with the interposition of springelements 6. which permit-a vibratory motion normal to the direction-of advance through the pusher furnaceto be imparted to the holder by a vibratorTin; themanner indicated by arrows 9.
  • the transferring means carries the ingot to the forging machine.
  • the withdrawal of the small ingot 3 may with advantage already begin before the next ingot is advanced by the next step of the pusher.
  • FIG. 3 is a modified holder for the clamping members. This is attached without the interposition of spring elements to the slide or carriage of the ejector equipment, the slide or carriage being movable in the direction in which the workpieces travel through the furnace.
  • the holder 5' which serves for supporting the clamping members 4' and their actuating means in this embodiment has a cylindrical external surface and is rotatably mounted in a frame-like slide 8 fitted with rollers 13.
  • the frame structure itself is bodily slidably movable along bars 10' extending in the direction of advance of the ingots.
  • a vibrator 7 a rotary oscillation can be applied to the holder 5', the clamping members 4 and to the ingot which they have gripped.
  • This oscillation has an analogous effect to that achieved in the previously described embodiment shown in FIGS. 1 and 2.
  • the present modification has the additional advantage that the small ingot 3' which has been separated from the following column of ingots and withdrawn from the furnace exit can be deposited for instance in a chute 20 and thus removed after it has been released by the clamping members 4".
  • the ejector elements include conical rollers 14 which are rotatably mounted on a shaft 15 that can be driven and that extends across the direction of advance of the ingots.
  • the holder 5" is associated with a vibrator 7" and supported from a pedestal 17 in the furnace frame with the interposition of spring elements 6'.
  • the column of ingots is advanced in the furnace at each feeding step so that the leading ingot which is fully heated and ready to be ejected can be engaged by the ejector rollers 14.
  • Vibratory motion in the direction of the arrows 18 is imparted to this ingot by the vibrator 7" acting through the holder 5", the shaft 15 and the conical ejector rollers 14. This vibration prevents the ingots that are about to be ejected from sticking or welding to the next following ingot inside the furnace or at least it causes any incipient fusion 'or weld to be rebroken.
  • a second pair of rollers may be mounted above the described roller pair on a vertically movable horizontal shaft.
  • Each feeding step advances the next ingot that is to be ejected between the two roller pairs.
  • the upper roller pair is then lowered on the ingot and both pairs grip the ingot that is to be ejected like clamping members.
  • a pusher furnace for inductively heating workpieces to their hot forming temperature before they are ejected at predetermined intervals at the furnace exit
  • the improvement comprising means for ejecting the fully heated workpieces at the furnace exit including ejecting elements mounted on a holder and adapted to grip the flanks of the workpiece and to withdraw the same in the direction of workpiece advance, said holder being supported so that it can move in a direction normal to the direction of workpiece advance, and a vibrator being coupled to said holder said vibrator preventing fusing of the gripped workpiece with one immediately therebehind.
  • the further improvement comprising means for mounting said holder rotatably about an axis parallel to the direction of workpiece advance. 4.
  • the improvement wherein the ejecting elements include clamping members and the holder includes means for opening and closing the clamping members.
  • the im provement comprising means for propelling the workpieces in the direction of workpiece advance including driven bodies for rolling on the workpiece surface.
  • Apparatus for ejecting hot workpieces from a pusher furnace comprising:
  • said gripping means includes tong-like, clamping members, a movablecarriage, means mounting said clamping members, elastic means connecting said carriage to said clamping members mounting means, and means connecting said vibrating means to said clamping members mounting means.
  • said gripping means includes clamping members, means for mounting said clamping members for rotatory vibratory motion, and means for connecting said clamping members mounting means to said vibrating means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Forging (AREA)
  • Tunnel Furnaces (AREA)
US00324145A 1972-03-18 1973-01-16 Workpiece gripper having vibrating means thereon Expired - Lifetime US3847291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2213249A DE2213249C2 (de) 1972-03-18 1972-03-18 Auswerfvorrichtung an einem Durchstoßofen zum Erwärmen von Werkstücken z.B. Blöckchen auf Warmformtemperatur

Publications (1)

Publication Number Publication Date
US3847291A true US3847291A (en) 1974-11-12

Family

ID=5839362

Family Applications (1)

Application Number Title Priority Date Filing Date
US00324145A Expired - Lifetime US3847291A (en) 1972-03-18 1973-01-16 Workpiece gripper having vibrating means thereon

Country Status (7)

Country Link
US (1) US3847291A (fr)
JP (1) JPS517612B2 (fr)
CH (2) CH1102374A4 (fr)
DE (1) DE2213249C2 (fr)
FR (1) FR2176781B1 (fr)
GB (1) GB1379873A (fr)
IT (1) IT974128B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945513A (en) * 1973-09-01 1976-03-23 Aeg-Elotherm Gmbh Gravity discharge furnace for heating production parts

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51122081A (en) * 1975-04-15 1976-10-25 Nisso Yuka Kogyo Kk Process for preparation of piperazine and its derivatives
JPS55176575U (fr) * 1979-06-06 1980-12-18
EP0051963A1 (fr) * 1980-11-06 1982-05-19 Chloride Silent Power Limited Procédé et dispositif pour fritter des articles céramiques tubulaires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368615A (en) * 1943-12-03 1945-02-06 Timken Roller Bearing Co Tongs mechanism
DE1221657B (de) * 1963-12-30 1966-07-28 E H Otto Junker Dr Ing Vorrichtung zum im Durchlaufverfahren erfolgendem Erwaermen von metallischen, anschliessend warm zu verformenden Werkstuecken
US3575301A (en) * 1968-01-02 1971-04-20 Ibm Manipulator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1235481A (fr) * 1959-05-27 1960-07-08 Acec Dispositif servant à faire défiler des pièces à chauffer dans un inducteur

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368615A (en) * 1943-12-03 1945-02-06 Timken Roller Bearing Co Tongs mechanism
DE1221657B (de) * 1963-12-30 1966-07-28 E H Otto Junker Dr Ing Vorrichtung zum im Durchlaufverfahren erfolgendem Erwaermen von metallischen, anschliessend warm zu verformenden Werkstuecken
US3575301A (en) * 1968-01-02 1971-04-20 Ibm Manipulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945513A (en) * 1973-09-01 1976-03-23 Aeg-Elotherm Gmbh Gravity discharge furnace for heating production parts

Also Published As

Publication number Publication date
DE2213249B1 (de) 1973-09-27
CH1102374A4 (fr) 1976-07-15
JPS4911712A (fr) 1974-02-01
CH583813B5 (fr) 1977-01-14
DE2213249C2 (de) 1974-04-25
GB1379873A (en) 1975-01-08
IT974128B (it) 1974-06-20
DE2213249A1 (fr) 1973-09-27
FR2176781B1 (fr) 1977-09-23
JPS517612B2 (fr) 1976-03-09
FR2176781A1 (fr) 1973-11-02

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