KR20080023226A - Sand shake-out device using vibration - Google Patents

Abstract

A device for shaking out core sand on work by using vibration. The device shakes out core sand adhered to a hollow section of a casting (work), such as an automobile component, formed by casting. To shake out the core sand, the work is held at a vibration base plate and the plate is vibrated by a single vibration motor. The device for shaking out sand adhered to the work (1) by vibration has the vibration base plate (5) placed on a base (3) with an elastic support member (4) interposed in between them, a holder (6) for the work (1) placed on the vibration base plate (5), and the single vibration motor (7) connected to the vibration base plate (5). After the work (1) is held by the holder (6), the vibration base plate (5) is vibrated by operating the vibration motor (7) to apply vibration to the work (1) held by the holder (6), and thereby the sand on the work (1) is removed. ® KIPO & WIPO 2008

Description

Vibratory sand shedding device {SAND SHAKE-OUT DEVICE USING VIBRATION}

The present invention provides a vibrating sand shedding of a work for dropping a sand (work) formed by casting, such as an automobile part, to a work by vibrating sand, particularly an internal sand attached to a hollow part of the work. It relates to an apparatus, and in detail, vibrating sand shedding of a work for dropping the sand attached to the work by holding the workpiece to be sanded on the vibrating plate and vibrating the vibrating plate by one vibrating motor. Device.

Many mechanical parts such as automobile parts are molded by casting. A large amount of sand adheres to the cast casting (work), and it is necessary to drop the attached sand.

As a sand-flowing method of a workpiece | work, the technique of hitting the workpiece | work to which sand adheres with a hammer, giving a vibration to a workpiece | work, and dropping sand is known conventionally. For example, the sand shedding apparatus (Japanese Utility Model Registration No. 3077681) of a workpiece | work which hold | maintains a workpiece | work in an airtight box, and strikes with a hammer, reverses a work stand, and turns a workpiece into a hammer part downwards, Hammering device which has a reverse sand shedding device (Japanese Laid-Open Patent Publication No. 2003-305559) of a workpiece to be hit, a work side soundproof box and a hammer side soundproof box, and forms a sealed chamber in both boxes to strike the work with a hammer (Japan Korean Patent No. 3205897) and the like are known.

However, all of these devices are in the form of dropping the sand attached to the work by hitting the work with a hammer, which not only increases the size of the device but also causes problems such as noise caused by the blow and environmental pollution caused by the scattering of sand. .

Moreover, the apparatus which makes a workpiece vibrate with a pair of vibration motors, and especially drops internal sand of a hollow part by this vibration force is applied by this applicant (Japanese Patent Application No. 2004-243118).

The device uses two vibration motors to provide excellent vibration dropping effect of sand. However, this device has a drawback in that it is large in size due to two vibration motors and is not economical. In addition, when using two motors, since two motors rotate synchronously, it is necessary to ensure weight distribution of two motors, and arrangement | positioning of an elastic support member.

[Patent Document 1] Japanese Utility Model Registration No. 3077681

[Patent Document 2] Japanese Patent Laid-Open No. 2003-305559

[Patent Document 3] Japanese Patent No. 3205897

{Patent Document 4] Japanese Patent Application No.2004-243118

Problems to be Solved by the Invention

The problem to be solved by the present invention is to vibrate the work instead of the conventional sand shedding technique of hitting the work by a hammer, in particular to achieve sand shedding of the work by using one vibration motor, thereby It provides a vibrating sand shedding device that not only reduces the size of the device, but also eliminates noise caused by hitting, prevents environmental pollution due to scattering of sand, and solves the problem of using two motors, and improves the drawbacks of the prior art. It is.

Means for solving the problem

MEANS TO SOLVE THE PROBLEM In order to solve the above-mentioned subject, according to this invention, the vibration board | substrate of the casting which drops the sand adhering to a casting by a vibration, The shaking board mounted on the base via the elastic support member Iii), a holding tool of the casting provided on the shake table, and one motor connected to the shaking table, and after holding the casting to drop sand on the holding hole, the vibration motor is operated to vibrate. Vibrating the base plate, thereby vibrating the casting retained in the holder, characterized in that to drop the sand of the casting.

Effect of the Invention

The present invention described above has a structure in which the work to be sanded is held by a vibrating plate, and the vibrating plate is vibrated by one vibrating motor to drop the sand inside the workpiece, particularly the hollow part. It does not need the same large device, it is miniaturized, there is no noise due to the blow, and there is no problem of environmental pollution due to the scattering of sand.

In addition, since the apparatus of the present invention has only one vibration motor, it is miniaturized and economical. In the case of using two motors, since the two motors rotate synchronously, the weight distribution of the two motors and the arrangement of the elastic support members must be ensured, but in the case of one motor, such a restriction is unnecessary.

1 is a plan view of one specific example of the present invention vibrating sand shedding apparatus.

2 is a side view of the apparatus of FIG. 1.

3 is a perspective view of the apparatus of FIG. 1.

It is a state figure before clamping a workpiece | work.

It is a state figure after clamping a workpiece | work.

<Description of the code>

Vibration Shedding Device Of A Castings

1 walk

2 hollow part

3 expectations

4 elastic support member

5 shaking table

6 workpiece holder

7 vibration motor

8 Work Clamp Guide

9 clamp rod

10 suppressor

Preferred Modes for Carrying Out the Invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 1 is a plan view of one specific example of a vibrating sand shedding apparatus according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view thereof.

As shown in FIG. 1, FIG. 2, and FIG. 3, this invention is a vibration sand shedding apparatus A of the casting which drops the internal sand of the hollow part 2 of the casting (work) 1 by vibration, The shake table 5 is mounted on the support plate 3 via the elastic support member 4. The shake stand 5 is provided with a work holder 6 for holding the casting 1 therein. The base plate 5 is connected to one vibration motor 7. The elastic support member 4 is a rubber, a metal spring, a pneumatic spring, or the like, which insulates vibration from the bottom surface and prevents the vibration of the vibration from the vibration plate.

When the vibrating sand circulating device A according to the present invention configured as described above flows in the sand, first, as shown in FIG. 4, air is drawn out from the work holder 6 which expands and contracts with air. Then, the clamp rod 9 is inserted through the work clamp guide 8 to make a space into which the work 1 is inserted.

Next, as shown in FIG. 5, after arranging the workpiece | work 1 in the space which the air was drawn out, air is put into the workpiece holding | maintenance tool 6, it expands, and the restraint opening 10 of the tip of the clamp rod 9 is carried out. ), The work 1 is held in the work holder 6 by pressing the work 1.

Thus, after holding the workpiece | work 1 to the workpiece holding | maintenance tool 6, the 1 vibration motor 7 connected to the vibration board 5 is moved, and the vibration board 5 is vibrated, thereby The work 1 held by the holder 6 is vibrated to drop sand adhering to the work 1, in particular, the internal sand of the hollow part 2. In addition, when dropping and removing the internal sand of the hollow part 2, when a granular solid substance is put into the hollow part 2 of the workpiece | work 1, drop removal can be performed efficiently.

Since the present invention described above has a structure in which the work to be sanded is held on a shake table, and the shake table is vibrated by a vibration motor, sand attached to the work, in particular, the internal sand of the hollow part, is dropped. It does not require a large device such as a hammering chamber, and can be miniaturized, and there is no noise caused by hitting, and there is no problem of environmental pollution due to scattering of sand.

In addition, the present invention is provided with only one vibration motor in accordance with vibration of the vibration base plate, which is not only economical but also simplified in structure and miniaturized. That is, in the present invention, since only one motor is provided, two motors need to rotate synchronously in the case of two motors, but it is necessary to ensure weight distribution and arrangement of the elastic support members. It is not subject to such restrictions. For this reason, the vibrating sand shedding apparatus of the present invention is likely to be widely used in the casting art.

Claims (2)

In the vibrating sand flowing apparatus of the casting which drops the sand adhering to the casting and the internal sand of the casting hollow part by vibration, The oscillating board mounted on the base via the elastic support member, And a holding tool of the casting provided on the shaking table, and one vibration motor directly connected to the shaking table, and holding the casting to be sand-dried in the holding tool, and then operating the vibration motor to vibrate the shaking table. And thereby vibrating the casting held by the holder so as to drop the sand of the casting and the internal sand of the hollow part. The method according to claim 1, An oscillating sand circulating device for pouring granular solids into a hollow part of a casting to drop off the internal sand of the hollow part.

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