EP0838290A1 - Dispositif pour la surveillance du débourrage de noyaux de pièces de coulées - Google Patents

Dispositif pour la surveillance du débourrage de noyaux de pièces de coulées Download PDF

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Publication number
EP0838290A1
EP0838290A1 EP97115053A EP97115053A EP0838290A1 EP 0838290 A1 EP0838290 A1 EP 0838290A1 EP 97115053 A EP97115053 A EP 97115053A EP 97115053 A EP97115053 A EP 97115053A EP 0838290 A1 EP0838290 A1 EP 0838290A1
Authority
EP
European Patent Office
Prior art keywords
hammer
exhaust air
castings
unit
hammer unit
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.)
Withdrawn
Application number
EP97115053A
Other languages
German (de)
English (en)
Inventor
Johann Preisinger
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.)
VAW Mandl und Berger GmbH
Original Assignee
VAW Mandl und Berger 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 VAW Mandl und Berger GmbH filed Critical VAW Mandl und Berger GmbH
Publication of EP0838290A1 publication Critical patent/EP0838290A1/fr
Withdrawn legal-status Critical Current

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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
    • B22D29/001—Removing cores
    • B22D29/005—Removing cores by vibrating or hammering

Definitions

  • the invention relates to a device for monitoring the Coring of castings with molding cores, at least includes a pneumatic hammer unit.
  • a pneumatic hammer unit With the standard Manufacture of castings, these are adherent Free the molding material as much as possible because of this funding and processing machines in the subsequent processing process pollute and damage and their function significantly can affect. This is done in automated Process control of pneumatically driven hammer units used, so by means of a feed unit to the castings be introduced that a hammer head puts on this. Then the hammer unit is up for a variable duration started for about 50 seconds with the hammer head striking.
  • the castings are particularly elastic Vibrating plates set.
  • the at least one hammer unit turned off and the feed unit retracted. After that the cored castings are transported to a Removal position while feeding additional castings from an insertion position to the coring position.
  • the object of the present invention is to provide such a monitoring device to propose.
  • the solution is there in that the at least one hammer unit with an exhaust air duct or an exhaust air collector, in which a Pressure sensor is arranged.
  • the means mentioned are both for monitoring a proper frequency of the hammer unit as well as for monitoring the required intensity of the hammering process. For example, if the hammer head is not properly on the workpiece the hammer assumes an excessive working frequency, so that the faulty operation is immediately identified and the further transport can be interrupted. Is through wear or Breakage at the hammer has come to a standstill, too an error message about the comparison with a target frequency possible. If the blow-by is too large due to wear on the hammer If the frequency is correct, this can be done by a decrease the pressure in the compressed air discharge below a predetermined Setpoint are recognized.
  • the exhaust air duct is open ended Line executed in which the pressure sensor on the one hand with Distance to hammer unit, on the other hand with a sufficient distance can be installed towards the open end.
  • distance from the hammer unit are improved environmental conditions to create for the pressure transducer, especially one Decoupling mechanical vibrations.
  • the appropriate Distance from the open end can ensure that the pulsations on the pressure transducer are so large that the Frequency can be detected with simple electronic circuits is.
  • the device according to the invention is cheap and robust and fulfilled the stated task in a completely satisfactory manner Wise.
  • a preferred embodiment of the invention is in the drawing shown as a schematic.
  • a pneumatic hammer unit is located directly on the feed unit 1 4 arranged mechanically with the feed unit 1 connected is.
  • the hammer unit 4 is with a compressed air supply line 5 and an exhaust line 6 connected.
  • she comprises a hammer head 7 which controls the movement of the feed unit 1 attached to the casting and withdrawn from it can be.
  • the Exhaust air is discharged via the exhaust air duct 6.
  • a pressure sensor 9 In some distance from the hammer unit 4 as well as some Distance from the open end 8 of the exhaust duct 6 sits a pressure sensor 9. This is via an electrical connection line 10 connected to an electronic evaluation circuit.
  • the strongly pulsating emerging from the hammer unit 4 Compressed air is damped along the length of the exhaust air duct 6.
  • an increased frequency can be used be determined when the hammer head is not in contact with one Casting works, or it can have a reduced pressure level be determined if due to the wear of the hammer unit excessive pressure drops occur.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Continuous Casting (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)
EP97115053A 1996-09-27 1997-08-30 Dispositif pour la surveillance du débourrage de noyaux de pièces de coulées Withdrawn EP0838290A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29616860U 1996-09-27
DE29616860U DE29616860U1 (de) 1996-09-27 1996-09-27 Vorrichtung zur Überwachung der Entkernung von Gußstücken

Publications (1)

Publication Number Publication Date
EP0838290A1 true EP0838290A1 (fr) 1998-04-29

Family

ID=8029832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115053A Withdrawn EP0838290A1 (fr) 1996-09-27 1997-08-30 Dispositif pour la surveillance du débourrage de noyaux de pièces de coulées

Country Status (3)

Country Link
EP (1) EP0838290A1 (fr)
DE (1) DE29616860U1 (fr)
PL (1) PL183575B1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2888140A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888139A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888137A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888136A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888138A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
AT517385A1 (de) * 2015-06-15 2017-01-15 Fill Gmbh Vorrichtung zum Entkernen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518203B1 (de) * 2016-02-02 2019-09-15 Fill Gmbh Vorrichtung zum Entkernen eines gegossenen Werkstückes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947795B1 (de) * 1979-11-28 1981-05-27 Bayerische Motoren Werke AG, 8000 München Vorrichtung zum Ausschlagen von Kernen aus Gussstuecken
DE3219390A1 (de) * 1981-05-27 1982-12-16 Werner Bazenheid Lüber Vorrichtung zum entfernen des kernsandes aus guss-stuecken
EP0304683A2 (fr) * 1987-08-27 1989-03-01 "F.u.K." Frölich & Klüpfel Drucklufttechnik GmbH & Co. KG Procédé et installation pour le debourrage de pièces coulées
WO1997021523A1 (fr) * 1995-12-13 1997-06-19 Les Outils Pneumatiques Globe Societe Anonyme Ensemble pneumatique a approche et frappe combinees, unite de dessablage comportant une telle unite, et procede de pilotage d'une telle installation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947795B1 (de) * 1979-11-28 1981-05-27 Bayerische Motoren Werke AG, 8000 München Vorrichtung zum Ausschlagen von Kernen aus Gussstuecken
DE3219390A1 (de) * 1981-05-27 1982-12-16 Werner Bazenheid Lüber Vorrichtung zum entfernen des kernsandes aus guss-stuecken
EP0304683A2 (fr) * 1987-08-27 1989-03-01 "F.u.K." Frölich & Klüpfel Drucklufttechnik GmbH & Co. KG Procédé et installation pour le debourrage de pièces coulées
WO1997021523A1 (fr) * 1995-12-13 1997-06-19 Les Outils Pneumatiques Globe Societe Anonyme Ensemble pneumatique a approche et frappe combinees, unite de dessablage comportant une telle unite, et procede de pilotage d'une telle installation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2888140A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888139A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888137A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888136A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
FR2888138A1 (fr) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
WO2007006935A1 (fr) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
WO2007006933A1 (fr) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
WO2007006936A1 (fr) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
WO2007006932A1 (fr) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
WO2007006934A1 (fr) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Ensemble pneumatique pour installation de dessablage des noyaux de fonderie
AT517385A1 (de) * 2015-06-15 2017-01-15 Fill Gmbh Vorrichtung zum Entkernen
AT517385B1 (de) * 2015-06-15 2019-02-15 Fill Gmbh Vorrichtung zum Entkernen

Also Published As

Publication number Publication date
PL183575B1 (pl) 2002-06-28
DE29616860U1 (de) 1996-12-05
PL322296A1 (en) 1998-03-30

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