A core-setting apparatus used for a molding apparatus and a method for setting a core

Abstract

These inventions provide a core-setting apparatus and a method for setting the core in a lower mold used for a molding apparatus, wherein the core-setting apparatus has a simple structure and can maintain the core in the mold in a highly accurate position. The inventions consist of: the core-setting apparatus to set a core in the lower mold while the upper and the lower mold and a match plate are separated from each other after molding the upper and lower mold that comprises: a handling tool having a holding means and a rotatable rod, wherein the handling tool is rotatably supported by the rod, a carrier for transferring the handling tool, wherein the carrier supports the rotatable rod and is moved to or from the location above the lower mold, and an actuator for lowering and lifting the cope flask together with the carrier and the handling tool which are located above the drag flask, wherein the actuator is mounted on the main body of the molding apparatus.

Description

TECHNICAL FIELD [0001] These inventions relate to a core-setting apparatus used for a flaskless molding apparatus for producing a pair of an upper and a lower mold, which molding apparatus uses a match plate, and a method for setting a core. BACKGROUND OF THE INVENTIONS [0002] Conventionally, as one core-setting apparatus that is used for a flaskless molding apparatus for producing a pair of an upper and a lower mold by using a match plate, there is a type of apparatus that comprises the following: [0003] after a drag flask is placed outside the apparatus by moving it forward from the apparatus, wherein the drag flask is movable forward and backward, [0004] a core-setting apparatus sets a core in a lower mold in the drag flask, wherein the core-setting apparatus is disposed above the drag flask. (See Patent Document 1.) [0005] Patent Document 1: Pamphlet of International Patent Laid-open Publication No. WO 02 / 43901 (See FIG. 3.) DISCLOSURES OF INVENTIONS [0006] However, for the inve...

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Benefits of technology

[0007] The present inventions have been conceived to solve these problems. Namely, the purpose of them is to provide a core-setting apparatus used for a molding apparatus and a method for setting a core in a mold that can simplify the structure of the molding apparatus and that can maintain the core in a highly accurate position.

[0024] a lowering step to lower the core to just in front of the surface of the lower mold or to a position where the core contacts the surface, which core is held by the handling tool, by forwardly moving an actuator for lowering or lifting the cope flask, wherein the actuator, which is mounted on the main body of the molding apparatus, can lower and lift the carrier, which is transferred to the position above the lower mold, and can also lower and lift the handling tool together with the cope flask,

[0038] an actuator for lowering and lifting the cope flask together with the carrier and the handling tool which are located above the drag flask, wherein the actuator is mounted on the main body of the molding apparatus. Since these inventions have these technical features, they have different types of effects, such as that the structure of the apparatus can be simplified, and that it is possible to maintain the accuracy of the position of the core when the core is set in the lower mold.

Problems solved by technology

However, for the inventions of Patent Document 1, since a drag flask must be able to move backward and forward, it becomes a problem in that the structure of the apparatus becomes complicated.

Further, since a core is set in a mold by lifting the drag flask under the condition that the drag flask is placed outside the apparatus by moving it forward from the apparatus, that is, while the drag flask is supported in a cantilevered state, it becomes another problem in that it is hard to keep the position of the core accurate.

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