JPS5949860B2 - Cutting piece discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cutting chip discharging device, and particularly to a cutting chip discharging device suitable for discharging highly entangled cutting chips such as metal.

In general, cut pieces of metal or the like have a sharp cut surface, have a wide variety of sizes and weights, and do not contain fine powder.

Therefore, when such cutting pieces become entangled with each other and cause a bridging phenomenon, their angle of repose is not constant and they are difficult to disintegrate.

Conventionally, in such a cutting chip discharging device for metal cutting chips, when discharging the cutting chips from a hopper that temporarily stores them,
A scraping member such as a rake, a rotating body, or a sliding body is used to forcefully discharge the liquid.

However, such conventional cutting chip discharging devices have a problem in that it is difficult to quantitatively discharge highly entangled metal without generating fine powder.

The present invention has been made in view of the above-mentioned conventional problems, and when cutting pieces of various shapes and weights such as metal cutting pieces are temporarily stored and then discharged, fine powder is generated. It is an object of the present invention to provide a cutting chip discharging device that can efficiently and quantitatively discharge cutting chips without causing problems.

In the cutting piece discharging device according to the present invention, metal cutting pieces have a specific gravity of 2.
~9, the apparent specific gravity is 0.3 to 0.7, the slip angle of each cutting piece is about 27 degrees, and we focused on the fact that the bridging phenomenon between cutting pieces is particularly likely to form on the exit side of the inner surface of the hopper. The hopper is fixed to a fixed frame, the bridging prevention roller is rotatably disposed inside the hopper and prevents bridging of cuttings, and the roller is disposed below the hopper and tilts in the discharge direction. a feeder chute that is rotatably disposed within the feeder chute and discharges a fixed amount of cutting chips; and a vibrating pie break that is attached to the feeder chute and vibrates the feeder chute. It is.

Hereinafter, one embodiment of the cutting piece discharging device according to the present invention will be described with reference to FIGS. 1 and 2.

A hopper 3 is fixed to the fixed frame 1 via a support frame 2.

The cut pieces are fed into the hopper 3 from an upper opening, and the wall surface provided in the direction in which the cut pieces are discharged is sloped to widen toward the bottom.

A feeder chute 4 having side plates with a predetermined gap is provided at the lower outlet of the hopper 3.

The feeder chute 4 receives the entire weight of the cuttings temporarily stored inside the hopper 3, is supported by the fixed frame 1 via an elastic body 5, and its width direction is kept horizontal and its discharge direction is Can be tilted at any angle.

A pie break 6 is attached to the lower surface of the feeder chute 4, and the pie break 6 is attached so as to apply vertical vibration to the surface.

Further, inside the exit side of the hopper 3, a bridging prevention roller 7.8 having a plurality of protrusions on the outer peripheral surface is installed horizontally at right angles to the discharge direction in order to loosen bridging caused by entanglement of cutting pieces. is supported by

Further, fixed quantity discharge rollers 9 and 10 having a plurality of protrusions on the outer circumferential surface are supported on the side wall of the feeder chute 4 so as to be horizontal and perpendicular to the discharge direction so as to discharge the cutting pieces quantitatively. There is.

These anti-bridging rollers 7.8 and metered discharge rollers 9, 10 are driven by a motor 11, and their rotation direction is opposite to the raking direction, that is, the discharge direction.

Next, the operation of the above embodiment will be explained.

When the feeder chute 4 is vibrated by the pie break 6, the cut pieces flow out in the discharge direction while vibrating diagonally up and down along the inclined surface of the feeder chute 4.

The cutting pieces flowing out in this manner are sent downward while the thickness of the cutting piece layer is regulated by the quantitative discharge roller 9, and are further scraped up by the quantitative discharge roller 10 and quantitatively discharged.

Further, the cutting pieces stored in the hopper 3 are given a good flow condition without causing bridging by the action of the bridging prevention roller 7.8 provided on the outlet side thereof.

According to the actual case, the metal cuttings stored in the hopper 3 and deposited on the feeder chute 4 are sent in the discharge direction by vibration without causing a bridging phenomenon, and are efficiently and quantitatively discharged.

Further, the discharge amount can be arbitrarily adjusted by adjusting the rotational speed of the quantitative discharge rollers 9 and 10.

Furthermore, since the cutting pieces are smoothly ejected by vibrations caused by the drive of the pie break 6, they are not forcibly ejected and no fine powder is generated.

In the above-mentioned actual case, the hopper 3 and the feeder chute 4 were fixed to the fixed frame 1 as separate bodies, but the hopper and the feeder chute may be integrated and supported by an elastic body.

As described above, the cutting chip discharging device according to the present invention includes a hopper fixed to a fixed frame, a bridging prevention roller rotatably disposed inside the hopper to prevent cutting chip bridging, and a bridging prevention roller located below the hopper. a feeder chute arranged in the feeder chute and tilted in the discharge direction; a quantitative discharge roller rotatably disposed within the feeder chute and discharging a fixed amount of cutting chips; a vibrating pie break attached to the feeder chute and vibrating the feeder chute; This has the effect that highly entangled cutting pieces such as steel fibers or municipal garbage can be quantitatively discharged as they are without generating fine powder.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of a cutting piece discharging device according to the present invention, and FIG. 2 is a plan view thereof. 3... Hopper, 4... Feeder chute, 6... Pie break, 7, 8... Roller for preventing bridging, 9, 10... - Roller for quantitative discharge.

Claims (1)

[Claims] 1. A hopper fixed to a fixed frame and formed in a shape that widens downward, and a hopper rotatably disposed horizontally at the bottom of the hopper and provided with a plurality of protrusions on the outer peripheral surface, which rotate in the direction of scraping up metal cuttings. a bridging prevention roller that prevents the bridging phenomenon of metal cuttings; a feeder chute that is arranged below the hopper to receive and hold the metal cuttings and is inclined downward in the direction in which the metal cuttings are discharged; It is rotatably arranged horizontally in the chute and has a protrusion on the outer circumferential surface, and is arranged at a predetermined distance from the bottom of the feeder chute to regulate the thickness of the metal cuttings and to move the metal cuttings in the direction of scraping up. A cutting piece discharging device that has a fixed quantity discharging roller that rotates and discharges a fixed quantity of metal cutting pieces, and a vibrating pie break that is attached to a feeder chute and vibrates the feeder chute.