JPH0459168A - Casting apparatus - Google Patents

Abstract

PURPOSE:To set a core after molding the core into a casting metallic mold and to reduce man-hour needed for conveying the core by setting a core molding machine having the core molding metallic mold in adjacent to a casting machine and using an upper mold in the core molding metallic mold as core handling device. CONSTITUTION:The movable upper mold 6 for forming the core by cooperating with the lower mold 7 in the core molding metallic mold 8, is used as a part of the core handling device. As the core is shifted to the casting metallic mold 5 together with the upper mold 6 after completing the core molding so as to set the core in the casting metallic mold 5, a pallet is unnecessary to use to the conveying of core and the man-hour needed for the conveying of core can be reduced, and intermediate inventory management of the core and recovery and management of the pallet are unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a casting apparatus suitable for casting methods using metal molds, such as die casting method and low pressure casting method, and more specifically, it relates to a casting apparatus suitable for casting methods using molds, such as die casting method and low pressure casting method. This invention relates to a casting device that reduces the number of man-hours required for handling cores in the process leading up to casting.

Conventional technology For example, in the die casting method using a sand core, the molding and casting of the core are performed in mutually independent processes, and the sand core made in the core molding process is inserted into a predetermined opening and into the mold. Generally, the sand cores are transported one by one to a casting process, and in the casting process, the sand cores are sequentially placed in a casting mold and repeatedly cast.

More specifically, as shown in FIG. 5, for example, cores 32 made by a shell molding machine 31 are taken out from a core molding die 33 and palletized one after another onto a pallet 34, so that a predetermined number of cores 32 are accommodated. The pallet 34 is then transported to the casting process. In the casting process, the cores 32 are sequentially taken out from the pallet 34 and set in the casting mold 36 of the die-casting machine 35 before casting.

Problems to be Solved by the Invention According to the conventional casting method, as the core 32 moves between the production and casting of the core 32, (1) the core molding die 3
Take out the core 32 from 3 and set it on the pallet 34.

(2) Transportation of the pallet 34 from the core molding process to the casting process.

(3) Taking out the core 32 from the pallet 34 and setting it in the casting mold 36.

(4) Transporting the empty bullet 34 from the casting process to the core molding process.

In addition, it also requires man-hours to manage the inventory of the cores 32 and pallets 34, which are intermediate inventories, resulting in a significant increase in the number of man-hours as a whole.

The present invention was made in view of the above problems.
The purpose is to provide a casting apparatus that reduces the number of man-hours required for handling the core from core molding to casting.

Means for Solving the Problems The casting apparatus of the present invention comprises: a casting machine having a casting mold; a core molding machine disposed adjacent to the casting machine to form a core mold;
A movable upper mold that is disposed at a position facing the lower mold of the core molding mold and cooperates with the lower mold to mold the core, and an arm connected to the upper mold, and the upper mold is connected to the lower mold. A handling device that moves the core between the opposing position and the casting mold and transports the core after molding to the casting mold along with the upper mold; It consists of a core extrusion device that extrudes the core and sets the core in a casting mold.

As the core molding method, in addition to the shell mold method, a cold box method, a warm box method, etc. can be adopted.

Function: According to this structure, the upper mold of the core mold essentially functions as a part of the core handling device, and the core immediately after the core molding is completed is moved together with the upper mold to the casting mold, and is then transferred to the upper mold. By operating the attached extrusion device, the core is extruded from the upper mold and positioned in the casting mold.

Embodiment FIGS. 1(A) and 1(B) are diagrams showing an embodiment of the present invention.
2 is a die-casting machine; 2 is a shell-type core molding machine disposed adjacent to the die-casting machine 1;

The die casting machine 1 includes a lower mold 3 that functions as a fixed mold.
A casting mold 5 is provided which includes an upper mold 4 which functions as a movable mold, and an upper mold 6 which functions as a fixed mold and a lower mold 7 which functions as a movable mold. A core molding die 8 is provided.

The upper mold 6 of the core molding die 8 is removably attached to the upper plate 9, and is connected to the tip of the arm 11 of the handling device 10.

Then, the upper mold 6 is moved to a position P facing the lower mold 7 by the action of the handling device 10, which will be described later, as shown in FIG. 1(B).
As shown in the figure, it is movable between a position P sandwiched between the upper and lower molds 3 and 4 of the casting mold 5.

The handling device IO includes a drive unit 12 that is integrally fixed to the frame of the core molding machine 2, and a drive unit 1.
The upper mold 6 is inserted and supported by the upper mold 2 and driven by the driving force given by its internal drive mechanism in the direction of movement of the upper mold 6 (direction of arrow a).
The arm 11 moves forward and backward. Then, the upper die 6 moves to the P1 position and P according to the forward and backward movements of the arm 11.

Move back and forth between locations.

The upper die 6 is provided with an extrusion device 16 that includes a plurality of extrusion bottles 14 connected to an extrusion plate 13 and a cylinder 15 for vertically moving the extrusion pins 14 along with the extrusion plate 13. This extrusion device 16 operates after opening the core molding die 8,
It serves to release and extrude the core 17 from the upper mold 6.

In the casting apparatus configured in this way, the mold clamping and mold opening operations of the die casting machine 1 and the core molding machine 2 are performed synchronously, and as shown in FIG. Since the upper mold 6 of the mold 8 is located at a position facing the lower mold 7, casting by the casting mold 5 and molding of the core by the core molding mold 8 are performed in parallel.

After casting and core molding are completed, when the casting mold 5 and the core molding mold 8 are opened, the cast product W is removed from the casting mold 5 by a product take-out device (not shown) as shown in FIG. 1(A). Meanwhile, the molded and fired core 17 is left attached to the upper mold 6 of the core molding die 8.

Next, from the state shown in FIG. 1(A), the handling device 10 is
When the arm 11 moves forward, the upper mold 6 of the core molding mold 8 is removed from the upper plate 9, and the casting mold is removed from the position P opposite to the lower mold 7, as shown in FIG. The mold 5 is moved to a position P2 above the lower mold 3.

In this state, the core extrusion device 16 attached to the upper die 6
2, the core 17 is pushed out from the upper mold 6 by the extrusion bottle 14 and is set on the lower mold 3 of the casting mold 5, more specifically, on the lower mold 3. Positioned in the middle book.

After completing the positioning of the core 17 with respect to the lower mold 3, when the extrusion bottle 14 of the extrusion device 16 is returned and the arm 11 of the handling device 10 is retreated, the top of the core molding die 8 is moved as shown in FIG. The mold 6 is again assembled with the upper plate 9. Then, the process moves to the next cycle of casting and core molding under the state shown in FIG.

Effects of the Invention As described above, according to the present invention, the upper mold of the core molding mold is substantially used as a part of the core handling device, and the core and the upper mold can be placed in the casting mold immediately after the core molding is completed. By moving the core and setting it in the casting mold, there is no need to use a bullet to transport the core as in the past, which greatly reduces the man-hours required for transporting the core. There is also no need for intermediate inventory management or collection and management of inventory (valley).

[Brief explanation of the drawing]

FIG. 1(A) is a diagram showing an embodiment of the present invention, and is an explanatory diagram showing the open state of the core molding die, and FIG. 1(B) is a diagram showing an example of the present invention in which the upper mold of the core molding die is the casting mold. FIG. 2 is an explanatory diagram showing the state in which the mold has been moved; FIG. 2 is an explanatory diagram when the core is taken out from the upper mold; FIG. This figure is also an explanatory diagram showing the simultaneous progress of core molding and casting, and FIG. 5 is an explanatory diagram showing the movement of the conventional core in the process from core molding to casting. DESCRIPTION OF SYMBOLS 1...Die casting casting machine, 2...Shell type core molding machine, 5...Casting mold, 6...Upper mold, 7...Lower mold,
8... Core forming mold, 10... Handling device, 1
1... Arm, 14... Push-out bottle, 16... Push-out device, 17... Core. Sunno-shi-111no

Claims (1)

[Claims] (1) A casting machine that has a casting mold, a core molding machine that is located adjacent to the casting machine and has a core mold, and a core molding machine that is located opposite to the lower mold of the core mold and cooperates with the lower mold. It has a movable upper mold that works to mold the core, and an arm that is connected to the upper mold, and moves the upper mold between the position facing the lower mold and the casting mold to form the core after the core is formed. a handling device that transports the core together with the upper mold to the casting mold; a core extrusion device installed in the upper mold that extrudes the core from the upper mold that is transported to the casting mold and sets the core in the casting mold; A casting device characterized by comprising: