JPH06298375A - Powder/grain material feeder - Google Patents

Abstract

PURPOSE:To always feed powder/grain material smoothly with a simple structure while preventing a bridge from occurring in a hopper. by providing a powder/grain material feeder which quantitatively feeds powder/grain material staying in a hopper into a vibrating sieving machine by the vibration of the sieving machine. CONSTITUTION:A rod-shaped body 22 is fixed vertically in the center of the raw material throwing port 16 of a vibrating sieving machine, and the rod- shaped body 22 is protruded into a hopper 14 from the discharge port 24 of the hopper 14 so as to vibrate the rod-shaped body 22 inside the hopper 14 by the vibration of the vibrating sieving machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdery- or granular-material feeder for quantitatively supplying powdery or granular material in a hopper to a vibrating and sieving machine by utilizing the vibration of a vibrating and sieving machine.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional powdery- or granular-material supplying device provided with an electromagnetic feeder for continuously supplying a powdery or granular material from a hopper to a vibrating and sieving machine without being clogged.

In the figure, a is a vibrating and sieving machine, b is a hopper, and c is a slide damper provided at the lower end of the hopper b. The electromagnetic feeder d is such that a horizontal passage e is vibrated by a vibration motor f, and both ends of the passage e are provided with flexible tubes g and h respectively at the lower end outlet of the hopper b and the upper end of the vibrating sieving machine a. It is vibrating at the entrance.

[0004]

However, such a powdery- or granular-material supplying device has a drawback that the supply is stopped if a so-called bridging of the powdery or granular material is formed in the hopper b.
There was a problem that the slide damper c could not adjust well even if the supply amount was to be adjusted.

[0005]

DISCLOSURE OF THE INVENTION The powdery- or granular-material feeder of the present invention is intended to solve the above-mentioned problems, and a rod-shaped body is vertically fixed at the center of a raw material charging port of a vibrating sieving machine. Is projected from the discharge port of the hopper into the hopper, and the rod-shaped body is vibrated in the hopper in accordance with the vibration of the vibrating and sieving machine.

Further, according to the present invention, in the above-mentioned powdery or granular material supply device, a slide cylinder is provided at the discharge port of the hopper so that the mounting height can be adjusted, and the distance between the lower end edge of the slide cylinder and the table plate supporting the rod-shaped body is adjusted. By doing so, the supply amount of the powdery or granular material is adjusted to a desired value.

[0007]

[Operation] The vibration of the vibrating and sieving machine causes the rod-shaped body to vibrate in the hopper to prevent the bridge and to smoothly discharge the powder and granules. Further, the amount of powder or granular material supplied can be adjusted as desired by adjusting the height of the slide cylinder.

[0008]

Embodiments of the present invention will now be described with reference to FIGS. This vibrating sieving machine 1 is provided with a plurality of coil springs 3 on a cylindrical base 2 to support a circular container 4 on the coil springs 3, and a vibration motor 5 is fixed to the lower bottom of the container 4. When the vibration motor 5 is rotated, the unbalanced weight provided on the rotation shaft of the vibration motor 5 operates to vibrate the container body 4. Wire nets 6 are horizontally stretched in the upper and lower stages inside the body 4, and under the respective metal nets 6, spherical bodies 10, 10 ... Are supported so as to be freely movable on a punching plate 8. The metal mesh 6 is prevented from being clogged by the collision of the spherical bodies 10, 10. Reference numerals 11, 12, and 13 denote discharge ports for the powder particles after classification provided on the side wall of the container 4, respectively.

Numeral 14 indicates columns 15 and 15 which are established on the base 2.
Since the hopper 14 is directly supported on the immovable base 2 by the hopper supported by the above, it does not vibrate like the body 4.

The center of the upper lid 23 of the container 4 is the raw material inlet 16
3, a cross-shaped supporting rod 17 is fixedly mounted in the raw material charging port 16 as shown in FIG. 3, a circular mounting plate 18 is fixed on the supporting rod 17, and the mounting plate is further fixed. A cylinder 20 is fixed on 18 by bolts 19, and a circular table plate 21 is horizontally supported on the cylinder 20. Then, a rod-shaped body 22 is vertically established at the center of the table plate 21, and the rod-shaped body 22 is projected into the hopper 14 from a discharge port 24 of the hopper 14.

A mouthpiece 27 is fixed to a flange portion 25 of the discharge port 24 of the hopper 14 with a bolt 26, and a slide cylinder 28 is loosely fitted on the outer periphery of the mouthpiece 27 so as to be vertically movable. The slide cylinder 28 is integrated with an outer peripheral cylinder portion 30 at an upper annular portion 29, and a support shaft 31 is provided on a bracket 33 projecting from two locations on the outer periphery of the outer peripheral cylinder portion 30.
The eyebolt 32 is attached by the number 1. Then, the eye bolt 32 is supported by screwing an eye nut 34 to the flange portion 7 of the base 27, and the mounting height of the slide cylinder 28 can be adjusted by adjusting the screwing amount of the eye nut 34. There is. 35 is a slide cylinder 28
A rubber sleeve that is superposed on the outer peripheral surface of the
The lower end edge of 5 further hangs from the lower end edge of the slide cylinder 28 and faces the upper surface of the table plate 21 so that a gap 36 is formed.

Reference numeral 37 is a flexible bellows-shaped tube whose upper end is fixed to the outer circumference of the outer peripheral cylindrical portion 30 by a band 38 and whose lower end is fixed to the outer circumference of the raw material inlet 16 by a band 39.

In this apparatus, however, when the vibration motor 5 is actuated to vibrate the body 4, the rod-shaped body 22 provided in the raw material inlet 16 vibrates in accordance with the vibration. Therefore, the rod-shaped body 22 vibrates in the hopper 14 and the discharge port 24
The granular material in the vicinity is vibrated so that the granular material quickly flows down by its own weight and passes through the gap 36 between the upper surface of the table plate 21 and the sleeve 35 to be dropped into the body 4 from the outer peripheral edge of the table plate 21.

Therefore, if the eye nut 34 is rotated to adjust the mounting height of the slide cylinder 28 and the gap 36, the amount of powder or granules supplied from the hopper 14 can be freely adjusted. Then, as shown in FIG. 4, the supply can be stopped by bringing the sleeve 35 into contact with the upper surface of the table plate 21 to eliminate the gap 36.

[0015]

As described above, the powdery- or granular-material feeder of the present invention is
With a simple structure, clogging in the hopper can be reliably prevented, and powder particles can always be supplied to the vibrating and sieving machine smoothly. Further, the supply amount can be easily adjusted, there is no fear of failure, and the facility cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing an entire powdery or granular material supply device according to the present invention.

FIG. 2 is a vertical cross-sectional view of a main part of the powder and granular material supply device.

3 is a sectional view taken along the line AA of FIG.

FIG. 4 is an operation state diagram of FIG.

FIG. 5 is a side view of the entire conventional powdery- or granular-material feeder.

[Explanation of symbols]

 1 Vibrating and Sieving Machine 2 Base 4 Instrument 5 Vibration Motor 14 Hopper 16 Raw Material Inlet 21 Table Plate 22 Rod-like Object 24 Discharge Port 28 Slide Cylinder 35 Sleeve 36 Gap

Claims (2)

[Claims] 1. A rod-shaped body is vertically fixed at the center of a raw material feeding port of a vibrating sieving machine, and the rod-shaped body is projected from the discharge port of the hopper into the hopper, and the rod-shaped body is accompanied by the vibration of the vibrating sieving machine. A powdery or granular material supply device, characterized in that the body is vibrated in the hopper. 2. A supply amount of powdery or granular material is desired by providing a slide cylinder at a discharge port of a hopper with an adjustable mounting height, and adjusting a distance between a lower end edge of the slide cylinder and a table plate supporting a rod-shaped body. The powdery or granular material supply device according to claim 1, wherein the powdery or granular material supply device is adjusted.