JPH05146846A - Device for manufacturing casting product - Google Patents

Abstract

PURPOSE:To enable repeated uses of a mold and effectively use the mold in the case of manufacturing plural pieces of products by fitting a runner parts, riser parts and feeder head parts as cores as changeable into a runner hole, riser hole and feeder head hole in the mold as reusable. CONSTITUTION:After fitting the runner parts 4, riser parts 5 and feeder head parts 6 as the cores into the runner hole 3a1, riser hole 3a2 and feeder head hole 3a3 of a cope 3a in the mold 3 from the inside, the cope is combined with a drag 3b. Thereafter, by pouring molten metal from the runner parts 4, gas (the air) in the mold is exhausted from the riser parts 5 and also the molten metal is overflowed from the feeder head parts 6. After holding this condition for a fixed time, the cope 3a is drawn out while taking off the runner parts 4, riser parts 5 and feeder head parts 6. Successively, the product is taken out from the drag and the runner parts 4, etc., are broken to finish-work the product. By this method, the mold can repeatedly be used and effectively be used in the case of manufacturing the plural products.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting product manufacturing apparatus using a reusable mold.

[0002]

2. Description of the Related Art In a conventional casting product manufacturing apparatus, kneading sand in which sand and a binder are mixed is poured into a metal frame to mold a mold.

[0003]

However, in the above-mentioned embodiment, when a plurality of products are manufactured, a mold must be manufactured each time, which is extremely unreasonable in practical use. The present invention has been made in view of the above problems, and an object thereof is to provide a casting product manufacturing apparatus that can be repeatedly used by replacing a hot water tool, a frying tool, and a feeder tool.

[0004]

In order to achieve the above object, the present invention provides a reusable mold runner hole, lift hole and feeder hole with a cored hot water tool and a lifting tool. Also, the water feeder is replaceably attached.

[0005]

Since the present invention has the above-mentioned means, when using this, the cored water tool, frying tool and After attaching the water heater,
The molten metal is poured into the hot water tool and cured. Then, the mold (upper mold) is pulled out while removing the hot water tool, the frying tool and the feeder tool. Next, the product is taken out from the mold (lower mold) and processed. If two or more of the same product are manufactured,
The above procedure is repeated.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings.

As shown in FIG. 1, a casting product manufacturing apparatus 1 of the present invention comprises a reusable upper mold 3a and a lower mold 3b containing alumina (A2O3) as a main component in a metal frame 2. Runner hole 3a1, lifting hole 3a2 and riser hole 3a
3, a tapered water tool 4, a frying tool 5, and a feeder tool 6 which are cored with kneading sand or the like are inserted from inside the upper mold 3a and attached.

[0008] Casting product manufacturing apparatus 1 configured as described above
An example of using is described below.

After attaching the water tool 4, the lifting tool 5 and the feeder 6 which are cored from the inside to the runner hole 3a1, the lifting hole 3a2 and the feeder hole 3a3 of the upper mold 3a of the casting mold 3 , Lower mold 3
Combine with b. After that, by pouring the molten metal from the hot water tool 4, the gas (air) in the mold escapes from the lifting tool 5 and the overflowed molten metal rises from the feeder tool 6. Curing in this state for a certain period of time. After curing,
The upper mold 3a is pulled out while removing the hot water tool 4, the frying tool 5, and the hot water tool 6. Subsequently, the product is taken out from the lower mold 3b, and the water heater 4 and the like are demolished to finish the product.

In the above-mentioned embodiment, a mold coating agent (ZrO2, S) is added to the mold 3 in order to improve wettability and releasability.
Compounds such as iO2 dissolved in water or alcohol)
It is also a consideration to apply. In addition, as a method of repairing the mold, repair is performed by using the same one as the mold agent and adding an adhesive binder. Further, it is also considered that the water heater, the frying tool and the feeder are formed in an inverted taper shape and attached from above the upper mold.

[0011]

As described above, the present invention has the following effects. The mold can be repeatedly used by exchanging the hot water tool, the frying tool, and the feeder tool, which is effective when manufacturing a plurality of products.

[Brief description of drawings]

FIG. 1 is a central longitudinal sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 --- Casting product manufacturing apparatus 2 ---- Metal frame 3 ---- Mold 4 ---- Hot water tool 5 --- Frying tool 6 --- Water feeder

Claims (1)

[Claims] 1. A reusable mold, wherein a cored hot water tool, a lifting tool and a feeder are attached to the runner hole, the lift hole and the feeder hole in a replaceable manner. Cast product manufacturing equipment.