Stopper for a Sprue of a Casting Mould
OwnerUdo Tartlerinventor
Life of this patent
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Abstract
The invention relates to a stopper for a sprue of a casting mould, said stopper having a through-passage for introducing casting material into the sprue of the casting mould and being designed such that it automatically closes the through-passage to prevent casting material from flowing out of the casting mould, and also to a method for filling a casting mould with casting material, having the steps of: inserting such a stopper into a sprue of a casting mould and introducing casting material into the through-passage.
Claims10
A stopper (2) for a sprue (4) of a casting mould (6), which has a through-passage (8) for introducing casting material into the sprue of the casting mould and which is designed such that it automatically closes the through-passage against the flow of casting material out of the casting mould.
The stopper according to the previous claim, characterized by a connection profile (22), which is designed in the through-passage (8) for the connection of a casting material feed line.
The stopper according to one of the previous claims, characterized in that the stopper has a stopper body (2) made of an elastic material, which is deformed elastically under the pressure of the casting material during introduction through the through-passage (8) into the sprue (4) of the casting mould (6) and thereby opens a closure (10) in the through-passage into the sprue.
The stopper according to the previous claim, characterized in that the closure (10) has a slit (10), the walls of which lie on each other in the undeformed state of the stopper body and close the through-passage (8).
The stopper according to the previous claim, characterized in that the slit (10) in the undeformed state of the stopper body (2) extends radially with respect to the direction of flow (9) through the through-passage through one end of the stopper body, into which the through-passage (8) flows, and extends axially (9) into the through-passage.
The stopper according to one of the two previous claims, characterized by one or more slits (10), which are turned towards each other around an axis (9) by the same angle.
The stopper according to one of the three previous claims, characterized in that the slit (10) is straight.
The stopper according to one of the four previous claims, characterized in that the stopper body (2) or the stopper (2) is rotationally symmetrical.
The stopper according to one of the previous claims, characterized by an installation device (24), by means of which the stopper (2) can be releasably fastened in the sprue (4) of the casting mould (6).
A method for filling a casting mould (6) with casting material, having the steps of:
- inserting a stopper (2) according to one of the previous claims into a sprue (4) of a casting mould and then
- introducing casting material into the through-passage (8).
Dependencies are inferred from the claim text.