EP2386367B1 - Procédé de démoulage de pièces coulées solidifiées dans un moule de coulée en sable - Google Patents

Procédé de démoulage de pièces coulées solidifiées dans un moule de coulée en sable Download PDF

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Publication number
EP2386367B1
EP2386367B1 EP11003678.7A EP11003678A EP2386367B1 EP 2386367 B1 EP2386367 B1 EP 2386367B1 EP 11003678 A EP11003678 A EP 11003678A EP 2386367 B1 EP2386367 B1 EP 2386367B1
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EP
European Patent Office
Prior art keywords
castings
sand casting
sand
casting mould
support base
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.)
Active
Application number
EP11003678.7A
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German (de)
English (en)
Other versions
EP2386367A3 (fr
EP2386367A2 (fr
Inventor
Andreas Hecker
Frank Denig
Volker Paulus
Werner Wohnsiedler
Friedrich Greiser
Guido Siebecker
Wolfgang Lohr
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.)
Gienanth GmbH
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Gienanth GmbH
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Publication date
Application filed by Gienanth GmbH filed Critical Gienanth GmbH
Publication of EP2386367A2 publication Critical patent/EP2386367A2/fr
Publication of EP2386367A3 publication Critical patent/EP2386367A3/fr
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Publication of EP2386367B1 publication Critical patent/EP2386367B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • the sand casting mold balls are conventionally run over a grate through which the molding sand falls off the castings. Molding sand residues and sprues that do not fall off by themselves are removed manually.
  • the JP S57 62 854 A describes a device for demoulding solidified cast parts in sand casting mold balls with a desanding device 23, which frees the sand casting mold balls in an upper area of mold sand during transport on a carrier base, so that two holding rails 19 can reach under exposed sprues.
  • a device that works according to the method according to the preamble of claim 1 goes out JP H03 32 462 A out.
  • casting mold balls are fed to a vibration transmission device 6 for demoulding, which comprises a pair of rods 11, which penetrate with one end opposite to the transport direction into the transported sand casting mold balls and on which the castings are suspended.
  • the rods 11 transmit vibrations to the cast parts and thus ensure that the molding sand is detached and the cast parts are transported through the vibration transmission device 6 to its outlet.
  • the object of the invention is to reduce the effort involved in demoulding cast parts contained in sand casting mold balls.
  • the subsequent sand casting mold balls push the castings, which are then exposed after the sand casting mold balls have disintegrated, onto the retaining rails.
  • the casting parts can be automatically removed from the sand casting mold ball by the method according to the invention and kept ready for further machining in a defined initial position.
  • the cast parts can be easily pushed onto such a pair of spaced-apart retaining rails, despite relatively large dimensional tolerances of the sand casting mold bodies and correspondingly large fluctuations in the cast part positions.
  • the carrier base can form a slideway on which the sand casting mold balls are shifted in abutting relationship.
  • a carrier base that is itself movable as such could be used, e.g. a conveyor belt.
  • the cast parts are transported away via the other end of the carrier rail for further processing.
  • the removal can take place by rotating the castings around a vertical axis, by 90°.
  • the cast parts can thus be brought into a suitable position for further processing.
  • the castings are fed to a separating device for separating sprues, such a separating device being, for example, a shearing device with a
  • the punch pushes the casting through an opening in the die, shearing off the sprues.
  • Sand casting mold balls 1 are transported away on a carrier base 2 from a pouring position 3 in a row lying against one another according to arrow 4 .
  • the support base 2 forms a slideway on which the sand casting mold balls 1 are intermittently advanced with the aid of a transport device indicated schematically by an arrow 5 .
  • an endless conveyor belt could serve as the carrier base.
  • casting material is poured into the roughly cuboid sand casting mold ball 1, which consists only of molding sand.
  • the castings 6 solidifying in the sand casting mold ball 1 include, in addition to the coupling disc 7 extending vertically within the sand casting mold ball, a sprue cluster 8 with a cone 9 formed by a funnel-shaped sprue opening.
  • a predetermined breaking point 10 is formed at the transition points between the coupling disc 7 and the sprue cluster 8.
  • the sprue cluster 8 also includes a projection 11 which extends in the transport direction and serves as a spacer.
  • Two support rails 13 and 14 run above an end edge 12 of the support base 2 in the transport direction of the sand casting mold balls 1 and are fastened to holders (not shown) which extend laterally upwards.
  • the support rails 13, 14 penetrate with one end opposite to the transport direction into the sand casting mold ball 1 and reach under the sprue cone 9 of the cast parts 6, which forms a sprue expansion 5 further advanced sand casting mold balls finally reach the end edge 12 of the support base 2, at which the material of the sand casting mold balls 1 can be detached from the castings 6 due to its gravity.
  • the cast parts 6 sliding on the support rails 13, 14 are, as shown in 1 is shown, lined up on the support rails 13,14, the projection 11 ensuring that a distance between the castings 6 is maintained.
  • the holding rails 13 , 14 are followed by a further processing device, which comprises grippers 15 attached to the sprue cone 9 , which take over the cast parts 6 from the holding rails 13 , 14 and transport them further according to arrow 16 .
  • the cast parts 6 are rotated by 90° about a vertical axis.
  • the castings 6 then reach a separating device 18 which includes a die 19 and a punch 20 .
  • the punch 20 moves perpendicularly to the clutch disc 7 and presses the clutch disc through the opening of the die 19, shearing off the predetermined breaking points 10.
  • Adhere to the device of 1 subsequent additional devices can also include vibrating devices for shaking off the remaining molding sand, plastering device or the like.
  • the sprue cone 9 can have lateral flattenings so that it can be held by the gripper 15 in a rotationally fixed manner about the vertical axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Claims (8)

  1. Procédé pour le démoulage de pièces coulées (6) solidifiées dans des moules de coulée en sable (1), dans lequel les moules de coulée en sable (1) sont évacuées par transport, en rangée, successivement, sur un support (2) à partir d'une position de coulée (3),
    où, avant d'atteindre un bord d'extrémité (12) du support (2), qui détermine une position de désagrégation des moules de coulée en sable (1), dans laquelle le sable de moulage s'élimine en tombant de la pièce coulée (6),
    au moins un rail de maintien (13, 14) pénètre avec une extrémité, en sens inverse du sens de transport, dans les moules de coulée en sable (1)
    afin de recevoir les pièces coulées (6) de manière alignée sur le rail de maintien (13, 14), caractérisé en ce que les pièces coulées (6) sur le rail de maintien (13, 14) sont déplacées en glissant sur le rail de maintien (13, 14) par le transport des moules de coulée en sable (1) sur le support (2), de telle sorte qu'elles forment une rangée de pièces coulées (6) en butée les unes contre les autres.
  2. Procédé selon la revendication 1, caractérisé en ce que plusieurs rails de maintien (13, 14) parallèles les uns aux autres sont utilisés.
  3. Procédé selon la revendication 2, caractérisé en ce que les pièces coulées (6) sont suspendues entre les rails de maintien (13, 14), de préférence par l'intermédiaire d'un élargissement de coulée (9).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le support (2) forme une piste de glissement sur laquelle les moules de coulée en sable (1) peuvent être déplacées en étant en contact les unes contre les autres et/ou en ce que le support (2) lui-même est mobile dans le sens du transport.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les pièces coulées (6) sont évacuées par transport au-delà de l'autre extrémité du rail de maintien (13,14) pour un traitement ultérieur.
  6. Procédé selon la revendication 5, caractérisé en ce que les pièces coulées (6) sont évacuées par transport en tournant autour d'un axe vertical.
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que les pièces coulées (6) sont acheminées vers un dispositif de séparation (18) pour la séparation des carottes (8).
  8. Procédé selon la revendication 7, caractérisé en ce que le dispositif de séparation (18) utilise un dispositif de cisaillage pourvu d'une matrice (19) et d'un piston (20).
EP11003678.7A 2010-05-12 2011-05-05 Procédé de démoulage de pièces coulées solidifiées dans un moule de coulée en sable Active EP2386367B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010020216A DE102010020216A1 (de) 2010-05-12 2010-05-12 Vorrichtung zur Entformung in Sandgießformballen erstarrter Gussteile

Publications (3)

Publication Number Publication Date
EP2386367A2 EP2386367A2 (fr) 2011-11-16
EP2386367A3 EP2386367A3 (fr) 2015-01-14
EP2386367B1 true EP2386367B1 (fr) 2023-06-28

Family

ID=44310852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11003678.7A Active EP2386367B1 (fr) 2010-05-12 2011-05-05 Procédé de démoulage de pièces coulées solidifiées dans un moule de coulée en sable

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EP (1) EP2386367B1 (fr)
DE (1) DE102010020216A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112958759B (zh) * 2021-01-30 2025-08-26 宜兴高泰克精密机械有限公司 一种便于进行调节更换模具的泵壳加工装置及加工方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332462A (ja) * 1989-06-28 1991-02-13 Kaneko Agricult Mach Co Ltd 鋳造工程の自動化装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5762854A (en) * 1980-09-30 1982-04-16 Toyota Motor Corp Take out device for cast product

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332462A (ja) * 1989-06-28 1991-02-13 Kaneko Agricult Mach Co Ltd 鋳造工程の自動化装置

Also Published As

Publication number Publication date
DE102010020216A1 (de) 2011-11-17
EP2386367A3 (fr) 2015-01-14
EP2386367A2 (fr) 2011-11-16

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