JPS6163337A - Vertically split molding and adhering machine for casting mold having gap part - Google Patents

Abstract

PURPOSE:To mold a casting mold which is integrally adhered so as to have a gap part having no outlet by incorporating a gluing mechanism into a device. CONSTITUTION:Right and left metallic patterns 1 and 2 holding respectively the cured casting molds 21 and 22 are split and at the same time a core metallic pattern 3 is lowered and reset to the home position. The gluing mechanism is then operated to spray and coat an adhesive agent 23 to the adhering surface of the mold 22. An injection nozzle is reset and the patterns 1, 2 are mated, by which the molds 21 and 22 are adhered and the completed hollow casting core is obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machine for making and bonding vertically split molds, and in particular to an apparatus for making and integrally bonding half-split molds for hollow molds, that is, molds with internal voids formed in the shape of bags. A split mold making device equipped with a mold, a mover, and a mandrel or an intermediate mold has been known for a long time, and this split mold making device uses a complicated mechanism to open and close the intermediate temperature, and is operated manually, so it is prone to failure. However, it is not known to produce a bag-shaped hollow mold having an internal hollow portion.

An improved device for the above-mentioned split molding device is the Utility Model Act 58-5
Although it is described in Japanese Patent No. 3155, there is no mention of the molding of a hollow mold.

In addition, when bonding molds, usually the half molds (including the core) are made using separate molding machines, and each half mold is removed.

At present, they are bonded using a separate bonding machine.

Problems to be Solved by the Invention In addition, a bag-shaped hollow molten metal part (including a core) having a void inside can be bonded to a core mold without using a separate bonding machine and performing a separate bonding process. By adding a gluing mechanism, we provide a vertically split mold/gluing machine that can split the mold in half by opening and closing the vise one more time during the molding cycle, and can produce a hollow mold that is glued together by gluing. It is something to do.

The configuration of the device of the present invention is as described in each of the claims above.1 The attached drawings show an example of molding and bonding of a hollow core in which the present invention is applied to a molding and bonding device of the cold box method. I will explain about it.

Figure 1 is a front view of the apparatus of the present invention, in which 1 is a left mold, 2 is a right mold, 3 is a core mold having two split surfaces, 4 is a gluing mechanism, and 5 is an unloader. 16 is a blow head, 7 is a gashing head, and other illustrated members are those included in a normal vertical split molding device unless otherwise specified.

The left mold 1 has a guide 1 rod 10 due to the operation of the cylinder 11.
, and move left and right in one drawing. The right gold hood 2 similarly slides left and right by the operation of the cylinder 12. The core mold 3 is moved up and down to a fixed position between the split surfaces of the left and right molds by the operation of the cylinder 13. The gluing mechanism 4 is raised and lowered by a drive mechanism such as a built-in cinder, and is equipped with a mechanism for spraying (or coating) adhesive on the split surface (adhesive surface) of the base core as described later. 1 which also has a built-in unloader 5]
The completed hollow core, which has been raised and lowered by the cylinder cylinder, is molded and bonded by the operations described later, is received from the two right metal ferrules which have been reversed downward by the operation of the reversing cylinder IJ cylinder 14.

The molding and contact operations of the device of the present invention having the above-mentioned configuration will be explained with reference to FIGS. 2, core mold 3, gluing structure 4.7 loader 5
．． Only the f-low head 6 and gutsing head 7 are shown.

FIG. 2 illustrates the arrangement of the components at the beginning of the molding and bonding cycle and is similar to that of FIG.

Figure 3 shows the blowing process, in which the core mold 3 rises to a predetermined position [
The left and right metal molds m1 and 2 move to both sides of the core mold 3 to form a sandwich shape, and the blow head 6 is lowered to press the mold assembly onto the mold assembly, and the molding sand is 20
Inject into the molding cavity.

FIG. 4 shows the gashing process, in which the blow head is returned to a predetermined position after blowing is completed, and gashing is performed by pressing the gashing head 7 onto the upper surface of the metal mass assembly.

Figure 5 shows the gluing process a (in this example, injection), where the left and right metals 1 and 2 holding the hardened g:n21 and 22 are split into molds, and at the same time the core mold 3 is lowered and returned to its regular position. Then, the adhesive spray nozzle is activated to spray and apply the adhesive 23 onto the adhesive surface of the mold 22 in this example.

FIG. 6 shows the bonding process, in which the injection nozzle is returned and the left and right metal fittings are brought together to bond the n-types 21 and 22, resulting in a completed hollow core 24.

Figures 7 to 9 show the mold release process, and in Figure 7, the left mold 1
The extrusion mechanism is operated to return the right mold 2 to a predetermined position while holding the completed hollow core 24 in the right mold 2.

FIG. 8 shows the reversing process of the right mold 2. By the operation of the reversing cylinder 14 shown in FIG. 5 is raised to a predetermined position, the extrusion mechanism built in the right mold 2 is operated, and the completed mold (in this example, a hollow core) is released and placed on the unloader 5.

Figure 9 shows a state in which the right mold 2 is returned to the predetermined position by the operation of the reversing cylinder 14, and the next molding/bonding cycle can be started. Without being limited to the above example, the mechanism of each member and the cap construction (1) may be slightly changed or modified based on known means.

For example, the following changes are possible: (1) One of the left and right molds is a fixed mold, and the core mold is a mechanism that can move vertically and horizontally.

(2) The gluing mechanism is not limited to spraying, but may be applied by coating or other known means, and is movable left and right.

(3) The unloader is not limited to the type shown, and any known unloading mechanism may be used.

Those skilled in the art will easily understand that this also applies to the molding method.

(5) It is not limited to core molding, but can be applied to all types of mold molding.

Effects of the invention (1) By using a core mold having two cut surfaces,
Compared to conventional molding methods equipped with mandrels, this enables molding regardless of the draft angle.

(2) By incorporating a gluing mechanism into the device and requiring only one extra step to open the left and right molds in the molding cycle, it is possible to create a mold that is glued together and contains a void with no outlet; The molding cycle has been simplified.

Therefore, although the cycle is longer than the cycle of molding only one half of a half, the total cycle of molding and gluing is much shorter than when half is molded using a separate molding machine and then glued together ◇ (3) Half. Since the molds are manufactured simultaneously, twice as many products can be obtained as compared to the conventional method of molding the molds individually. In other words, the number of molding machines can be halved.

(4) There is no need for handling between the sintering machine and the gluing machine, so the initial cost is also low.

(5) Since molding and gluing are performed in a single molding and gluing machine, products with extremely high one-dimensional accuracy can be obtained.

(6) Applicable to both cold box molding and knee 4 edge molding.

(7) The conventional inserts, bush needles, etc. that were inserted from the sides of the left and right molds can be omitted with the device of the present invention. "Oiteko" etc. can also be omitted.

[Brief explanation of the drawing]

@ Figure 1 is a front view showing an example of the device of the present invention, Figures 2 to 9
The figure is a schematic diagram illustrating only the main components for sequentially explaining the molding and bonding operations of the apparatus of the present invention.In the figure, 1 is a left mold, 2 is a right mold, and 3 is a core mold. 4 is the gluing mechanism, 5 is the unloader - 16ha 7"a
-Head, 7 is f-tushing head, 10 is guide mechanism, 111 and 12 are cylinders for left and right molds, 13
14 is a cylinder f+ for raising and lowering the core mold, 14 is a cylinder for reversing the right mold, 20 is molding sand, 21 and 22 are hardened half molds, 23 is an adhesive, and 24 is a completed mold.

Claims (4)

[Claims] (1) Move the left and right gold amounts to a fixed position between the cutting surfaces of the left and right gold amounts,
A vertically split mold/adhesive machine for molds having a cavity having a core mold that stops and a gluing mechanism that includes a mechanism that is inserted between the split surfaces of the left and right molds. (2) A vertically split mold/adhesive machine for a mold having a cavity according to claim 1, in which at least one of the left and right molds can be opened and closed. (3) A vertically split mold/adhesive machine for a mold having a cavity according to claim 1, wherein the core mold is a mechanism capable of moving vertically and horizontally. (4) A vertically split mold/adhesive machine for a mold having a cavity according to claim 1, wherein the gluing mechanism is movable up and down and left and right and has an adhesive application or injection mechanism.