JP4560263B2 - Reversing sand removal method for workpieces - Google Patents

Description

[0001]
The present invention removes sand adhering to a workpiece, particularly sand adhering to a workpiece feeder, by hitting a casting (work) molded by casting with an knockout hammer (batter hammer). The present invention relates to a sand removal method for a workpiece, and in particular, relates to a workpiece reversal-type sand removal method in which the workpiece is turned over and hammered with a hot water supply portion directed downward to drop sand around the hot water by its own weight.
[Prior art]
[0002]
Various machine parts such as automobile parts are very often molded by casting. In this case, it is necessary to remove the sand adhering to the workpiece by hitting the cast workpiece with a knockout hammer.
[0003]
Upon Shi overlooked this type of sand, conventionally, a work which has been molded by casting clamped in the sealed box, struck with a hammer for the work strikes dropping the sand adhering to the workpiece devices are often used.
[Problems to be Solved by the Invention]
[0004]
However, in the above-described known device, when clamping the workpiece to be sand-dropped, if the hot water portion is clamped upward, the direction cannot be changed after clamping. In this case, in the conventional device, the hot water portion is struck upward, and the sand remains in the hot water portion without being sufficiently dropped.
[0005]
Therefore, in the conventional device, another sand removing device for removing the sand remaining in the hot water feeder portion of the workpiece is required, and not only the device is increased in size, but also the work for conveying the workpiece to the sand removing device. A transport device is also required.
[0006]
Therefore, the object of the present invention is provided with a work cradle capable of reversing 180 °, and when holding the work on this cradle, even if the work feeder portion is set upward, the cradle is turned 180 ° and turned downward, By hitting from below with a hammer in this downward state, the sand around the hot water bath is completely dropped by its own weight, eliminating the residue of sand, and providing a work reversal type sand removal method that improves the above-mentioned disadvantages of the known technology To do.
[Means for Solving the Problems]
[0007]
In order to achieve the above-mentioned object, according to the method for reversing sand of a workpiece according to the present invention, sand adhered to the workpiece by striking the workpiece molded by casting with a hammer for hammering the workpiece in a sealed box. a shakeout apparatus of the workpiece dropping, the sealed box is provided with a closable shutter box body and the top portion, a closed box formed when closing the shutter, the box body holds the workpiece therein Using a workpiece sand removal device provided with a workpiece cradle capable of reversing 180 ° and a workpiece hitting hammer positioned below the workpiece cradle, the shutter is opened to hold the workpiece to be sanded on the workpiece cradle, and then the shutter Closes to form a sealed box, and also reverses the workpiece holder that holds the workpiece and lowers the workpiece feeder. Kinishi, the downward work completely down to strike from below by the hammer sand around pushing the workpiece water by its own weight, characterized in that to eliminate the residual sand in the riser.
BEST MODE FOR CARRYING OUT THE INVENTION
[0008]
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
[0009]
FIG. 1 is a cross-sectional view of a specific example of an apparatus used in the method of the present invention. A work 1 molded by casting is struck with a hammer 3 for hitting a work in a sealed box 2 and attached to the work 1. It is a device that drops sand.
[0010]
The sealed box 2 includes a pair of shutters 6 and 6 that can open and close the opening of the box body 4 and the top 5 thereof. The shutters 6 and 6 are respectively attached to the left and right sides of the box body 4 so as to be rotatable, and the tips 7 and 7 are rotated in the direction in which they contact each other. Box 2 is formed. The driving sources for opening and closing the shutters 6 and 6 are cylinders 8 and 9 , and the shutters 6 and 6 are opened and closed by the driving force of the cylinders 8 and 9 .
[0011]
The box body 4 includes a workpiece cradle 10 that can be flipped 180 ° for clamping and holding the workpiece 1 therein, and a workpiece hitting hammer 3 positioned below the workpiece cradle 10. The work cradle 10 is reversed by a drive source (not shown), and the hammer 3 is driven with respect to the work 1 by a cylinder (not shown) installed outside the sealed box 2.
[0012]
The apparatus used in the method of the present invention having the above-described configuration first opens the shutters 6 and 6 by rotating them in opposite directions, introduces the workpiece 1 to be sand-dropped in the direction of the arrow, and mounts the workpiece on the box body 4. 10 and clamp and hold. At this time. The hot water portion 13 of the work 1 may be upward.
[0013]
Next, the shutters 6 and 6 are rotated in the direction in which the tips 7 and 7 are in contact with each other to close the top 5 opening of the box body 4, thereby forming the sealed box 2. Then, the work cradle 10 holding the work 1 is turned 180 ° so that the hot water supply section 13 of the work 1 is turned downward, and the work 1 is hit with the hammer 3 in this downward state. The surrounding sand is dropped, and the sand remaining in the hot water supply section 13 is removed. One hammer or a plurality of hammers 3 may be used. The dropped sand is collected at the bottom 11 of the box body 4, and the damper 12 is appropriately opened by the driving force of the cylinder 9 to discharge the sand to the outside of the box.
【The invention's effect】
[0014]
As described above, the apparatus used in the method of the present invention rotates the work cradle 10 by 180 °, inverts the work 1 clamped and fixed on the cradle and directs the hot water feeder 13 downward, and in this state Since the hammer is struck, the sand around the feeder 13 is dropped by its own weight, so that no sand remains in the feeder 13 and this is a practically useful invention.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a specific example of an apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Work 2 Sealed box 3 Hammer 4 Box body 5 Top part 6 Shutter 7 Tip 8 Cylinder 9 Cylinder 10 Work receiving stand 11 Bottom part 12 Damper 13 Hot water part

Claims (1)

A sand removal device for a workpiece, in which a workpiece formed by casting is struck in a sealed box with a workpiece hammer to remove sand adhering to the workpiece, and the sealed box is capable of freely opening and closing the box body and its top. A workpiece comprising a shutter, forming a sealed box when the shutter is closed , the box body having a 180 ° reversible workpiece cradle for holding the workpiece therein and a workpiece hitting hammer positioned below The sand removal device is used to open the shutter and hold the workpiece to be sand-dropped on the workpiece cradle, then close the shutter to form a sealed box, and the workpiece cradle holding the workpiece is reversed the push hot water unit down, the downward work to blow from the bottom in the hammer Mawa push hot water work Shakeout methods sand completely dropped by its own weight, the workpiece using a reverse expression shakeout device of a work, characterized in that to eliminate the residual sand in the riser.

Images