JPS623702B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration device used, for example, in a mold making device.

This type of vibration device that has already been proposed has a vibration table supported by a plurality of coil springs installed horizontally on a substrate, and a plurality of vibration motors are installed in parallel on the underside of this vibration table. For example, a vibrated body to which molding sand for mold making is charged and molded is installed, and the vibration motors are driven and vibrated to form the mold.

However, since each of the above-mentioned vibration motors is equipped with an exciter inside each motor and is fixed to the vibration table itself, the life of the bearings of each vibration motor is shortened due to the impact of vibration. Since each vibration motor is fixed directly to the vibration table, the vibration table has also become significantly larger.
Not only is the installation location limited, but it is also difficult to construct the entire device compactly.

In view of the above-mentioned points, the present invention provides a vibration table on a substrate via a plurality of springs, a plurality of vibration exciters arranged in a row on the back side of the vibration table via each joint, and The input shaft is connected to a drive motor provided on a stationary member, a clamp frame is provided above the vibration table so as to be movable up and down by each cylinder device, and a vibrated member is placed between the vibration table and the clamp frame. The purpose of the present invention is to provide a vibrating device whose purpose is to apply vibration to a body, thereby extending the life of each bearing, and at the same time making the entire device small in size.

An embodiment in which the present invention is applied to a mold making apparatus will be described below.

In FIGS. 1 and 2, reference numeral 1 denotes a flat board, and each spring 2 for vibration isolation is attached to each corner of the upper surface of this board 1. A vibrating table 3 is held in a floating state with a gap 4 interposed therebetween. A plurality of vibrators 5 are arranged in a row on the back surface 3a of the vibrating table 3 via respective joints 6, and the input shaft 5a of each vibrator 5 is connected to each gear 7a, 7b of the synchronous gear device 7. It is connected to the output shaft 9a of each drive motor 9 on the stationary member 8 via.

On the other hand, a clamp frame 10 is provided above the vibrating table 3 so as to be movable up and down by each pair of cylinder devices 11 provided on the vibrating table 3. A mold flask 14 containing a wooden mold 12 and molding sand 13 is placed between them. Therefore, in order to form a mold by putting the wooden mold 12 and molding sand 13 into the mold flask 14, the mold flask 1 must be filled in advance.
A wooden mold 12 and molding sand 13 are housed in the mold 4, and then each cylinder device 11 is operated to fix the mold flask 14 on the vibrating table 3 with the clamp frame body 10.

Next, by driving each drive motor 9, each vibrator 5 applies vibration to a vibrated body as a mold flask 14 on the vibration table 3, and instantaneously forms a mold.

The embodiment shown in FIGS. 3 to 5 is another embodiment of the present invention, in which the input shaft 5a of each vibrator 5 arranged in two rows is connected to the output shaft of each drive motor 9. 9a are connected via respective joints 6, and has substantially the same content as the specific example described above.

Note that each of the balance weights 5b and 5c of the vibrator 5 shown in FIGS. 4 and 5 can adjust the vibration frequency by freely adjusting the rotation angle of the rotating shaft 5d.

Incidentally, although the above-mentioned embodiment has been described as an embodiment applied to a mold making device, it is free to change the design so that it can be applied to, for example, a vibration segmentation device.

As described above, according to the present invention, the vibration table 3 is provided on the substrate 1 via a plurality of springs 2,
A plurality of vibration exciters 5 are arranged in a row on the back surface of this vibration table 3 via each joint 6, and the input shaft 5 of this vibration exciter 5 is
a is connected to a drive motor 9 provided on a stationary member 8, and a clamp frame 1 is mounted above the vibration table 3.
0 is provided in each cylinder device 11 so that it can be raised and lowered freely, so not only does the life of the bearings etc. become longer than that of this type of vibration device that has already been proposed, but the configuration is also simplified, so the vibration table It has excellent effects such as being able to reduce the weight of the device and making the entire device compact.

[Brief explanation of the drawing]

FIG. 1 is a side view of the vibration device according to the present invention, FIG.
The figure is a plan view taken along the chain line AA in FIG. 1, and FIGS. 3 to 5 are views showing other embodiments of the present invention. 1... Board, 2... Spring, 3... Vibration table, 5...
Vibrator, 6... Joint, 9... Drive motor, 10... Clamp frame, 11... Cylinder device.

Claims (1)

[Claims] 1. A vibration table provided on a substrate via a plurality of springs, a plurality of vibration exciters arranged in a row on the back side of the vibration table via respective joints, and connected to the input shaft of the vibration exciter, Furthermore, it consists of a drive motor provided on a stationary member and a clamp frame provided above the vibration table so as to be able to be raised and lowered by each cylinder device. A vibrating device characterized by applying vibration to a vibrating body.