JPH10244360A - Shakeout machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fully separate molding sand from a casting in a short time and to shorten the length of a trough by constituting the main part of a casting guide body with a grating structural body, in case of shaking out a mold which is already cast and cooled and laid on this grate, and separating the molding sand from the casting. SOLUTION: The mold which is already cast and cooled, is laid on the grate. The trough is constituted with the grating structural bodies 2 horizontally fitting round bars and fixed to frames vertically stood, guide plates 3 for guiding the casting to an outlet in both sides of the grate and the grate. This trough is vibrated with a vibrator 8 and the laid mold which is already cast and cooled, is shaken out and separated into the casting and the molding sand, and the separated sand is dropped into a hopper 5. A belt conveyor is arranged at the lower part of the hopper 5 to carry out the molding sand to the outer part. The casting separating and removing the molding sand is carried to the outlet of the trough with the vibration and shifted to the following process. By this method, the miniaturization of the shake-out machine and the reduction of cost can be obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for vibrating a trough constituted by a casting guide and a grade by an oscillator to crush a placed pouring and cooled mold to separate it into a casting and sand. The present invention relates to a shakeout machine that guides separated sand to a hopper via a chute.

[0002]

2. Description of the Related Art In a casting production process, it is essential to take out a casting as a product from a mold that has been poured and then cooled. Conventionally, a shakeout machine has been used as an apparatus for performing the work. An example of a shakeout machine is shown in FIGS. The shakeout machine of the present embodiment includes a trough comprising a grade 11 as a mold conveying surface and a casting guide body 12, oscillators 18 and 18, which generate vibration, a chute 14 for guiding sand to fall, and a hopper 15 for storing the guided sand. And so on. The actual working process of this shake-out machine is as follows. First, the mold after pouring and cooling is placed on the trough grade 11, and the mold is crushed by applying vibration to the mold by driving the oscillators 18 and 18, and Separation and removal of sand from The separated sand is passed through a grade 11 grid and a chute 1
4, falls into a hopper 15, and is carried out to the outside by a belt conveyor 16. The casting moves on the grade 11 by vibration, is guided by the casting guide 12, and is transferred from the outlet at the tip of the trough to the device in the next step.

[0003]

As described above, in the shakeout machine, the mold is placed on the trough grade and crushed, and the sand separated from the casting is dropped downward from the lower one in order. . Therefore, it was necessary to apply vibration for a long time to completely separate and drop the sand from the casting. If it is not possible to completely separate the sand and drop it, there arises a problem that sand flows out together with the casting from the trough outlet. In order to eliminate such a problem, if the shakeout machine is lengthened and vibration is applied to the mold for a sufficient time, the sand can be completely separated and removed, and all the sand can be dropped. However, there is another problem that lengthening the trough causes the shakeout machine to become large and expensive. The present invention has been made in order to solve the above problems, and a shakeout machine capable of sufficiently separating sand from a casting with a trough length shorter than before in a shakeout machine and allowing the sand to fall. The purpose is to provide.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention vibrates a trough constituted by a casting guide body and a grade by an oscillator to remove a placed molten metal and a cooled mold. In a shakeout machine that crushes and separates into a casting and sand and guides the separated sand to a hopper via a chute, a main part of the casting guide is constituted by a lattice structure. More preferably, the outside of the oscillator is covered with a cover, and the size of the upper opening of the hopper is preferably larger than the space between the covers and longer than the length of the lattice structure.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1, 2 and 3 show a shakeout machine according to the invention. Reference numeral 1 denotes a grade on which a poured and cooled mold is placed. The grade is configured by assembling square bars in a lattice shape, and this is a casting product conveying surface. On both sides of the grade 1, there is provided a casting guide body comprising a lattice structure 2 in which a round bar is mounted horizontally on a vertically erected frame, and a guide plate 3 for guiding a casting to an outlet. A trough is formed by the lattice structure 2, the guide plate 3, and the grade 1. A chute 4 is provided below the trough, and a hopper 5 is further provided below the chute.
And a belt conveyor 6. Numerals 7 and 7 are covers for protecting the oscillators 8 and 8 from falling sand. The size of the upper opening 5A of the hopper 5 is larger than the space between the covers 7, 7 and longer than the length of the lattice structure 2.

The process of removing a casting from a mold using the shakeout machine configured as described above will be described below. When the mold after pouring and cooling is placed on the trough grade 1, vibration is applied to the mold by driving the oscillators 8 and 8. This vibration breaks the mold and separates the casting from the sand. Separated sand falls below the hopper 5 through the lower chute 4 through the grade 1 lattice. Further, the sand separated above the mold is a lattice structure 2
And is dropped to the hopper 5 below. The sand that has entered the hopper 5 is carried out to the outside by the belt conveyor 6. The casting from which the sand has been separated and removed is carried to the outlet of the trough by vibration and transferred to the next step.

[0007]

As is apparent from the above description, the shakeout machine according to the present invention makes the main part of the trough casting guide body a lattice structure, and the sand separated from the casting falls from the lower grade at the same time as the side parts. The castings and the sand can be completely separated in a shorter time than in the past because the lattice structure is also discharged to the outside. As a result, the length of the trough can be made shorter than that of the conventional one, and the size and cost of the shakeout machine can be reduced. In addition, a cover is provided to protect the oscillator, so that the sand that has passed through the lattice structure during work slides on the cover and falls into the hopper, causing sand to enter the oscillator and cause a failure. There is nothing at all.

[Brief description of the drawings]

FIG. 1 is a side view of a shakeout machine, showing an embodiment of the present invention.

FIG. 2 is a front view of the shakeout machine, showing the embodiment of the present invention.

FIG. 3 is a plan view of the shakeout machine, showing the embodiment of the present invention.

FIG. 4 is a side view of a shakeout machine, showing an embodiment of the prior art.

FIG. 5 is a front view of a shakeout machine showing an example of the prior art.

FIG. 6 is a plan view of a shakeout machine showing an example of the prior art.

[Explanation of symbols]

 1 Grade 2 Lattice Structure 4 Chute 5 Hopper 7 Cover 8 Oscillator

Claims (2)

[Claims] 1. A trough constituted by a casting guide and a grade is vibrated by an oscillator to crush the placed pouring and cooled molds and separate them into castings and sand. A shakeout machine that guides a drop to a hopper via a hopper, wherein a main part of the casting guide is constituted by a lattice structure 2. 2. A cover 7, 7 covering the outside of the oscillators 8, 8.
The size of the upper opening 5A of the hopper 5 is larger than the width between the covers 7 and longer than the length of the lattice structure 2. Shake-out machine.