DE1069339B - - Google Patents

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Publication number
DE1069339B
DE1069339B DENDAT1069339D DE1069339DB DE1069339B DE 1069339 B DE1069339 B DE 1069339B DE NDAT1069339 D DENDAT1069339 D DE NDAT1069339D DE 1069339D B DE1069339D B DE 1069339DB DE 1069339 B DE1069339 B DE 1069339B
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DE
Germany
Prior art keywords
model
elastic
casting molds
vibrating machines
consist
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.)
Pending
Application number
DENDAT1069339D
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German (de)
Publication date
Publication of DE1069339B publication Critical patent/DE1069339B/de
Pending legal-status Critical Current

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  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Description

Modell, insbesondere Holzmodell, für die Herstellung von Gießformen auf Rüttelmaschinen Die Erfindung bezieht sich auf 'Todelle, insbesondere Holzmodelle, für die Herstellung von Gießformen auf Rüttelmaschinen.Model, especially wooden model, for making casting molds on vibrating machines The invention relates to 'Todelle, in particular wooden models, for the production of casting molds on vibrating machines.

Es ist bereits bekannt, die Modelle für die Herstellung von Gießformen mittels Kunststoffpuffern auf Rüttelmaschinen zu montieren. Es hat sich gezeigt, daß bei intensiven Rüttelvorgängen an der Verbindungsstelle zwischen 'Modell und Rüttelpuffer starke Zerreißspannungen auftreten, weil das 'Modell in erster Linie als starrer, unelastischer Körper wirkt, während der Kunststoffpuffer starken elastischen Deformationen ausgesetzt ist. Die Folge hiervon ist, daß häufig ein Abreißen des Modells von den Puffern stattfindet, wodurch sich schwerwiegende Störungen im Betrieb ergeben, ganz abgesehen davon, daß die Klodelle hierdurch einen erhöhten Reparaturbedarf haben.It is already known the models for making casting molds to be mounted on vibrating machines using plastic buffers. It has shown, that with intensive shaking processes at the junction between 'model and Vibration buffer strong tensile stresses occur because the 'model in the first place acts as a rigid, inelastic body, while the plastic buffer is strong elastic Is exposed to deformations. The consequence of this is that the Model from the buffers takes place, causing serious disruptions in operation result, quite apart from the fact that the Klodelle thereby an increased need for repair to have.

Die Erfindung vermeidet die genannten Nachteile dadurch, daß elastische Dämpfungsunterlagen an den Auflagestellen des Modells vorgesehen sind, die aus einer unteren, hochelastischen und einer oberen, weniger elastischen Kunststoffschicht bestehen.The invention avoids the disadvantages mentioned in that elastic Damping pads are provided at the support points of the model, which consist of a lower, highly elastic and an upper, less elastic plastic layer exist.

eben der Vermeidung der obengenannten Nachteile der bekannten Ausführungen weist die Erfindung den Vorteil auf, daß nur in den unteren Schichten für die Dämpfungst:iiterlagen ein hochwertiger elastischer Kunststoff vorgesehen zu werden braucht, während in den oberen Schichten ein weniger hochwertiges Material Verwendunz finden kann.precisely to avoid the above-mentioned disadvantages of the known designs the invention has the advantage that only in the lower layers for the attenuation layers a high quality elastic plastic needs to be provided while in A less high-quality material can be used for the upper layers.

Claims (1)

Modell, insbesondere Holzmodell, für die Herstellung von Gießformen auf Rüttelmaschinen, gekennzeichnet durch elastische Dämpfungsunterlagen an den Auflagestellen des Modells. die aus einer unteren, hochelastischen und einer oberen, weniger elastischen Kunststoffschicht bestehen. In Betracht gezo.gene Druckschriften: Deutsche Patentschrift Nr. 923 214; schweizerische Patentschrift Nr. 299439; USA.-Patentschriften Nr. 2 233 097, 2 351919; »Gießerei-Praxis«, 1955, S.467.
Model, in particular a wooden model, for the production of casting molds on vibrating machines, characterized by elastic damping pads at the points where the model is supported. which consist of a lower, highly elastic and an upper, less elastic plastic layer. Publications taken into consideration: German Patent No. 923 214; Swiss Patent No. 299439; U.S. Patent Nos. 2,233,097, 2,351,919; "Foundry Practice", 1955, p.467.
DENDAT1069339D Pending DE1069339B (en)

Publications (1)

Publication Number Publication Date
DE1069339B true DE1069339B (en) 1959-11-19

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ID=594485

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DENDAT1069339D Pending DE1069339B (en)

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DE (1) DE1069339B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233097A (en) * 1940-07-29 1941-02-25 Birdsboro Steel Foundry & Mach Pattern for sand-cement foundry molds
US2351919A (en) * 1942-07-16 1944-06-20 Plastie Veneering Inc Method of coating wooden patterns
CH299439A (en) * 1952-01-14 1954-06-15 Ver Deutsche Metallwerke Ag Process for the production of models or core boxes.
DE923214C (en) * 1942-03-03 1955-02-07 Ver Deutsche Metallwerke Ag Process for making models or core boxes in series

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233097A (en) * 1940-07-29 1941-02-25 Birdsboro Steel Foundry & Mach Pattern for sand-cement foundry molds
DE923214C (en) * 1942-03-03 1955-02-07 Ver Deutsche Metallwerke Ag Process for making models or core boxes in series
US2351919A (en) * 1942-07-16 1944-06-20 Plastie Veneering Inc Method of coating wooden patterns
CH299439A (en) * 1952-01-14 1954-06-15 Ver Deutsche Metallwerke Ag Process for the production of models or core boxes.

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