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 PDFInfo
- 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- Withdrawn
Links
- 238000005266 casting Methods 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 title claims description 6
- 238000011156 evaluation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
Images
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2888137A1 (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 |
FR2888140A1 (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 |
FR2888136A1 (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)
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)
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 |
-
1996
- 1996-09-27 DE DE29616860U patent/DE29616860U1/de not_active Expired - Lifetime
-
1997
- 1997-08-30 EP EP97115053A patent/EP0838290A1/fr not_active Withdrawn
- 1997-09-25 PL PL97322296A patent/PL183575B1/pl not_active IP Right Cessation
Patent Citations (4)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2888137A1 (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 |
FR2888140A1 (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 |
FR2888136A1 (fr) * | 2005-07-08 | 2007-01-12 | Outils Pneumatiques Globe Sa | 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 |
WO2007006935A1 (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 |
WO2007006934A1 (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 |
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 |
---|---|
PL322296A1 (en) | 1998-03-30 |
PL183575B1 (pl) | 2002-06-28 |
DE29616860U1 (de) | 1996-12-05 |
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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: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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AX | Request for extension of the european patent |
Free format text: AL;LT;LV;RO;SI |
|
AKX | Designation fees paid | ||
RBV | Designated contracting states (corrected) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19981030 |