JPH0110144Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] The invention relates to a device for disintegrating core pieces of a casting workpiece,
In particular, the present invention relates to a device for disintegrating core pieces of a casting work, which is suitable for disintegrating core pieces remaining on a workpiece as a casting rough material for various casting workpieces, and discharging the core pieces from the workpiece.

[Prior art]

When removing core pieces, which are the raw material of various casting workpieces, conventionally, a shaker, bullbearer, knockout machine, etc. are used to vibrate the workpiece,
Methods such as shot plus, etc., or temperature shock were used. According to these, most of the core pieces can be removed from the workpiece.

However, due to impeding factors such as the shape of the raw material, the size and position of the core piece discharge port, or the quality of the core pieces' collapsibility, the above methods may not be able to remove the core pieces sufficiently, and it may not be possible to remove the core pieces manually. For this purpose, they had to rely on manual labor such as sieving out or removing the core pieces. Such manual work requires skill, is tiring, and has problems such as overlooking residual core pieces due to work errors, deteriorating work efficiency and quality of the workpiece, or increasing the number of man-hours.

[Purpose of invention]

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide a device for disintegrating core pieces of a cast workpiece, which can easily remove the core pieces of a cast workpiece. .

[Summary of the idea]

In order to achieve the above object, the present invention provides a connecting rod having one end connected to a rotatably moving driving wheel and reciprocating with the rotation of the driving wheel, and a connecting rod having another end connected to the connecting rod, and one end of which is fixed so as to be swingable. and a casting work storage box in which a connection part with the connecting rod moves back and forth in a circular arc due to the reciprocating motion of the connecting rod, and the centrifugal force caused by the circular reciprocation of the casting work storage box is applied to the casting work stored in the casting work storage box. is applied, and this centrifugal force causes the core pieces of the casting work to collapse.

[Example of idea]

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a configuration for removing residual core pieces from a surge tank used in a vehicle engine.

In FIG. 1, the core fragmentation device main body 10 is provided with a drive section 14 that rotationally drives a driving wheel 12. As shown in FIG. Further, one end of a casting work storage box 18 that stores a surge tank 16 as a casting work as shown in FIG.
It is swingably fixed to the top plate 22 of. A connecting rod 26 is connected to the lower part 24 of the casting work storage box 18, and the other end of this connecting rod 26 is connected to the end of the driving wheel 12.

As shown in FIG. 3, in the device of this embodiment configured in this way, when the driving wheel 12 is rotated by the drive of the drive unit 14, the connecting rod 26
reciprocates in accordance with the rotation of the driving wheels 12. Also, when the connecting rod 26 reciprocates, the casting work storage box 1
8 swings about the pin 20 as a fulcrum, and the connecting portion 24 with the connecting rod 26 reciprocates in an arc as shown by arrow A. Therefore, centrifugal force is applied to the surge tank 16 housed in the casting work storage box 18 due to the arcuate reciprocating motion of the casting work storage box 18 . When such centrifugal force is applied to the surge tank 16, as shown in FIG.
collapses. The collapsed core piece 28 is removed from the surge tank 1 by the circular reciprocating motion of the casting work storage box 18.
It is discharged from the discharge port 30 of 6.

In this way, the apparatus in this embodiment has a surge tank 16 housed in a casting work storage box 18.
A centrifugal force is applied by the circular reciprocating motion of the casting work storage box 18, and the core pieces 28 of the surge tank 16 are disintegrated by this centrifugal force and discharged from the discharge port 30, so that the remaining core pieces of the surge tank 16 are removed. can be easily removed. Furthermore, the device according to this embodiment does not require any manual work other than loading and unloading the surge tank 16, and since it does not require clamping, the number of man-hours can be reduced by 98% compared to the conventional device. Further, since the device according to this embodiment has a simple mechanism and a small number of parts, the manufacturing cost of the device can be reduced, and durability and maintainability can be improved.

Further, in the above embodiment, since a drive unit such as an air cylinder mechanism is not used, power consumption can be suppressed, safety is excellent, and the core piece removal work can be carried out smoothly.

[Effect of idea]

As explained above, according to the present invention, a centrifugal force is applied to the casting work stored in the casting work storage box by the circular reciprocating motion of the casting work storage box, and this centrifugal force causes the core pieces of the casting work to collapse. Since the collapsed core pieces are discharged from the discharge port of the workpiece, core pieces inside the workpiece can be removed without manual work, which has the excellent effect of improving work efficiency. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a preferred embodiment of the present invention, including a partially broken surface, FIG. 2 is a perspective view of a surge tank stored in the casting work storage box shown in FIG. 1, and FIG. These figures are diagrams for explaining the operation of the apparatus shown in FIG. 1, and FIG. 4 is a perspective view including a partially broken surface of a surge tank stored in the casting work storage box shown in FIG. 1. 12...Driving wheel, 16...Surge tank, 18...
...Casting work storage box, 26...Connecting rod, 28...
Core piece, 30...Discharge port.

Claims (1)

[Scope of utility model registration request] A connecting rod whose one end is connected to a rotatably moving driving wheel and moves reciprocatingly as the driving wheel rotates, and a connecting section where the other end of the connecting rod is connected and one end is fixed so as to be swingable and is connected to the connecting rod by the reciprocating movement of the connecting rod. and a casting work storage box that makes circular reciprocating motion.A centrifugal force is applied to the casting work stored in the casting work storage box by the circular arc reciprocating movement of the casting work storage box, and this centrifugal force causes the core pieces of the casting workpiece to be reciprocated. A device for disintegrating core pieces of a casting work, which is characterized by disintegrating core pieces of a casting work.