JP2581215Y2 - Seal structure of eccentric rotating body for powder feeding of powder feeding equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention relates to a ho
Turn to the position eccentric to the bottom center of the hopper
Roll, and use the same rotary body to remove one of the powder particles in the hopper.
Feeder that accommodates, rotates, and discharges out of the hopper
Also, the present invention relates to a seal structure for preventing powder and granular material from entering an opening of a rotating body that rotates with a shaft passing through a central opening of the intermediate .

[0002]

2. Description of the Related Art Conventionally, as a sealing structure of a rotating body which rotates with a shaft penetrating through a central opening, a rubber for sealing the shaft is attached and extended to an upper surface of the rotating body so as to cover the opening of the rotating body. Then, a method of sealing by contacting with the upper surface is adopted.

[0003]

In this conventional sealing method, the rubber cannot be used because the load is deformed by the load at the bottom of the powder hopper where the load such as the powder of the supply plate directly acts on the rubber. The problem to be solved by the present invention is to solve this conventional problem, and to provide a space between an eccentric rotating body and a shaft that can be used even in a place where a load such as powder acts.
An object of the present invention is to provide a seal structure for an eccentric rotating body of a powder feeding device .

[0004]

The gist of the present invention which has solved the above-mentioned problems is to provide a hopper on a bottom surface of a hopper containing powdery and granular materials.
Install a rotating body at a position eccentric to the center of the par bottom and
Rotate while holding a part of the powder in the hopper
A powder feeding device for discharging the rotator around the center of rotation of the rotator through an opening provided in the center of the rotator and at a position eccentric from the center of rotation of the rotator. In the rotating body structure for rotating, the opening is formed in a circle around the center of the rotating body, and an intermediate body for inserting the shaft and fitting the opening with the opening of the rotating body is provided. A seal structure for an eccentric rotating body of a powder feeding device, wherein a seal cover for sealing an opening is attached. Here, the shaft may be rotating or non-rotating and fixed.

[0005]

In this invention, the intermediate body fills the opening between the rotating body and the shaft, and can withstand the load of powder or the like.
Seal most of the openings. Further, a seal cover attached to the intermediate seals the gap between the intermediate and the opening.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is directed to a feeder that discharges powder in a hopper by rotating a supply plate provided with a powder / particle storage groove at a position slightly eccentric from the center of the bottom of the hopper that stores the powder and granules. This is an example used.

FIG. 1 is a longitudinal sectional view of an embodiment, FIG. 2 is a plan view of the embodiment, FIG. 3 is an explanatory view showing a relationship between a spur gear and an internal gear, and FIG. 4 is an explanatory view showing an attached state of an intermediate body.

In the drawing, 1 is a hopper, 2 is a bottom of the hopper 1, 3 is a rotating shaft, 4 is a rotary blade, 5 is a rotary feeder, 6 is an annular groove powder and granular material storage, and 7 is the same powder and granular material. A scraper 8 inserted into the housing 6, a flat gear 8 mounted on the rotating shaft 3,
Reference numeral 9 denotes an internal gear fixed at a position slightly offset from the rotating shaft 3 to the axis Z2, meshes with the spur gear 8 at a part thereof, and is fixed to the rotation supply plate 5; An opening 11 is rotatably inserted into the opening, and an intermediate part of which partially penetrates the rotary shaft 3, 12 is a seal cover over the intermediate 11, 13 and 14 are seals, 15 and 15.
16 is a bearing. Z1 is the axis of the rotating shaft 3, Z2
Is the axis of the rotary supply board 5.

In this embodiment, when the rotating shaft 3 rotates, the stirring blades 4 rotate at the center of the bottom 2 of the hopper 1 to stir the powder inside the bottom 2 and the powder on the rotary feeder 5. The body container 6 is filled with the granular material.

On the other hand, the rotation of the rotary shaft 3 rotates the rotation supply plate 5 around the axis Z2 via the spur gear 8 and the internal gear 9. The intermediate body 11 is located between the rotary shaft 3 and the opening 10 of the rotary supply plate 5, and even when the rotary supply plate 5 rotates, it is restrained by the rotary shaft 3 and stands still. Prevents and acts as a seal. In particular, the rotary contact portion is sealed by a seal cover so as to protect the rotary contact portion, so that the granular material does not enter the rotary contact portion.

The granular material filled in the granular material accommodating portion 6 of the rotary supply board 5 is supplied to the hopper 1 with the rotation of the rotary supply board 5.
Is transferred from the inside to the outside, and the granular material in the granular material storage unit 6 is discharged by the scraper 7 outside.

In this embodiment, the outer diameter of the rotary supply plate 5 is slightly larger than the outer diameter of the hopper 1, and the outer diameter is about the same as the hopper 1 diameter. , The supply volume can be increased at the same rotation speed, and the supply capacity can be increased.

[0013]

As described above, according to the present invention, according to the present invention, the intermediate body is attached to the opening between the rotating body and the shaft. The entry of the object was prevented, and the problem of sealing was solved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is an explanatory diagram showing a relationship between a spur gear and an internal gear according to the embodiment.

FIG. 4 is an explanatory view showing an attached state of the intermediate body of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hopper 2 Bottom part 3 Rotating shaft 4 Rotating blade 5 Rotation supply board 6 Powder and granular material accommodating part 7 Scraper 8 Flat gear 9 Internal gear 10 Opening 11 Intermediate body 12 Seal cover 13 Seal 14 Seal 15 Bearing 16 Bearing Z1 Shaft axis of rotating shaft Z2 axis of rotary feeder

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65G 65/48 F16H 57/02

Claims (1)

(57) [Scope of request for utility model registration] 1. A hopper is provided on a bottom surface of a hopper containing powdery and granular materials.
Install a rotating body at a position eccentric to the center of the par bottom and
Rotate while holding a part of the powder in the hopper
A powder feeding device for discharging the rotator around the center of rotation of the rotator through an opening provided in the center of the rotator and at a position eccentric from the center of rotation of the rotator. In the rotating body structure for rotating, the opening is formed in a circular shape around the center of the rotating body, and an intermediate body for inserting the shaft and fitting the opening with the opening of the rotating body is provided. A seal structure for an eccentric rotating body of a powder feeding device, comprising a seal cover for sealing an opening.