JPS5855854B2 - Core deburring device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a core deburring device.

In general, deburring devices are known that use a blade shaped to follow the outer shape of the core, or that move a mold along the contour of the core relative to the core.

By the way, when considering deburring a shaft-shaped core using these methods, it is necessary to set the core by determining the position of the pan according to the cutter and overall mold, and also to remove the sharpness of the core or deburring blade. There are many problems in terms of labor and equipment, such as the need for a means to move the equipment.

The present invention solves these problems by eliminating the need for changing the posture of the core when removing the burr from the shaft-shaped core, and by making it possible to perform the burr removal work with a simple structure. A plurality of shafts formed in a shape that makes line contact with the outer peripheral surface of a shaft-shaped core are placed in parallel and rotatably, and a shaft-shaped core is placed on top of the shafts, and the shafts are rotated to remove debris. It is.

The present invention will be explained in detail below based on embodiments shown in the drawings.

W1 to W4 are solid shaft-shaped cores with stepped outer shapes.

1. 2 and 3 are deburr shafts made of hardened carbon steel (S25C, 855C, etc.), and these deburr shafts 1, 2, and 3 are arranged in parallel with a gap that is sufficient to place the core. and is rotatably arranged.

These shafts 1, 2, and 3 have an outer shape that is in contact with the outer circumferential surface of the cores W1 to W4 in the axial direction (this line), and are shafts with a length equal to two of the cores W1 to W4. It is designed so that four cores can be set.

The shafts 1, 2, and 3 are provided with collars 4 at both ends and in the center, which also take the edge off the end face of the core.

Among the shafts 1, 2, and 3, the central shaft 2 is connected to an air motor 5, and the shafts 1 and 3 on both sides are each supported by a bearing provided with 64 arms. It is linked by a belt 7 so as to rotate in the same direction as this central shaft.

The air motor 5 and spring belt 7 constitute a rotational drive means.

Note that each shaft may be directly rotated by an air motor.

The arm 6 is swingably supported by a base 8.

Reference numeral 9 denotes an air cylinder that swings the arm, thereby moving the shafts 1 and 3 on both sides relative to the central shaft 2 to a position t indicated by the two-dot chain line in FIG.

Note that 8a is an opening for removing the core, and 10 is a discharge chute.

According to this device, when an operator places four cores between the three shafts 1, 2, and 3 and operates the air motor 5, these shafts 1, 2, and 3 rotate in the same direction. do.

At this time, the core also rolls, and the outer surface of the core is at shaft 1.
, 2 and 3 are scraped off by repeated line contact with the outer circumferential surfaces of the parts.

The rotation time of L2 and L3 (shirt) is determined by a timer (not shown) (
For this reason, it is set to about 10 seconds, for example, to prevent the core from being cut too much and the edges from being left uncut.

After the rotation has stopped, the air cylinder 9 is activated, and the shafts 1 and 3 on both sides move to the positions indicated by the two-dot chain lines, so that the core falls.

The fallen cores are carried out using a chute. In the embodiment, four cores can be processed at the same time, but by lengthening the shaft or increasing the number of cores, more cores can be deburred at one time.

In addition, although a carbon steel shaft quenched material was used, the outer periphery may be coated with ceramic or the like, thereby improving the wear resistance and further shortening the time for removing the burr.

Furthermore, although the core is solid or stepped, it may be hollow or have a shape other than steps.

As explained above, according to the present invention, an operator can reliably remove the burrs from a shaft-shaped core simply by placing the core between the single shafts and rotating the shaft, regardless of the orientation of the core. The equipment can be extremely simple.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG. W1~W4...Axis-shaped core, 1, 2, 3...
...Shaft, 5... Air motor, 7...
・Spring belt.

Claims (1)

[Claims] 1. There are a plurality of shafts that are shaped to make line contact with the outer circumferential surface of the core in the axial direction. They are arranged in parallel (small and rotatable) at a distance that allows them to be placed,
A core deburring device characterized in that a rotation drive means for rotating each shirt truck in the same direction is provided.