JP2571547B2 - Feeding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder feeder for discharging a powder or granules contained in a hopper, a tank or a storage chamber (collectively referred to as a hopper in the specification) containing the granules. About.

[0002]

2. Description of the Related Art As a conventional powder feeder, a feeder is provided at the bottom of a hopper for transferring powdery material on the outer periphery of the bottom to the outside of the hopper, and the powdery material is placed at the center of the bottom of the hopper above the feeder. 2. Description of the Related Art There is known a powder feeding machine having a structure provided with a conical body that guides a bulge and a curved body whose central portion is raised high (collectively referred to as a cone in the specification). In this type of powder feeder, the powder in the hopper is slid to the outer periphery by the cone at the bottom, is caught by the outer feeder, is forcibly transferred to the outer periphery, and is discharged. However, in this type of powder feeding machine, when the amount of powder in the hopper is large and the powder pressure is high, or depending on the type and shape of the powder, the powder may cause a bridge phenomenon between the cone and the inner surface of the hopper. This causes the powder to not smoothly flow toward the feeder. To solve this problem, it has been attempted to eliminate the bridging phenomenon by installing a vibrator on the outer periphery of the hopper to smooth the movement of the granular material. There is a need for a large exciter machine that does not transmit efficiently to the outer periphery of the cone, which is easy.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to solve these problems of the conventional powder feeder,
An object of the present invention is to provide a powder feeder which is small and efficiently flows down smoothly so that the powder and granular material in the hopper does not clog at the position of the cone.

[0004]

According to a construction of the present invention, which solves the above-mentioned problems, a feeder is provided at the bottom of a cylindrical body for accommodating the granular material, the feeder for transferring the granular material on the outer periphery of the bottom to the outside of the cylindrical body. In the powder feeder provided with a substantially conical cone that guides the powder to the outer periphery at the center of the bottom of the cylinder above the cone, the cone is supported swingably up, down, left and right, and the cone is moved up and down. A rocking means for rocking left and right is provided inside the cone , and
Eccentric with the center of rotation of the rotating body of the feeder that rotates and transports the body
And an annular orbit that goes up and down is provided on the rotating body inside the cone,
Roller attached to the same track inside the cone and swings
Means are constituted, and it is in the flour feeder characterized by the above-mentioned.

[0005]

According to the present invention, the cone provided at the center of the bottom of the cylinder connected to the lower opening of the hopper is made swingable up and down and left and right, and the cone is swung up and down and left and right by the direct swing means. Therefore, the granular material around the cone also shakes up, down, left, and right, giving rocking and vibration to the granular material around the cone, which is the most clogged,
The powder can flow down along the surface of the cone without causing a bridging phenomenon, and can be smoothly discharged out of the hopper by the feeder. Since the cone of the present invention is a swing accompanied by a displacement having a larger amplitude than a simple vibration, the cone is effectively swung so that the bridging phenomenon of the granule hardly occurs. Moreover, since the oscillating means is mounted on the inner side of the cone with the eccentric and up-and-down trajectory on the rotator and the roller to be constrained to the trajectory, the corn can be strongly oscillated with a simple structure.

[0006]

An embodiment of the present invention will be described with reference to the drawings.
The embodiment is an embodiment of the present invention. 1 is a longitudinal sectional view of the embodiment, FIG. 2 is a partially cutaway plan view of the embodiment, FIG.
FIG. 3 is an explanatory view showing a swinging means of the embodiment. In the figure, 1 is a cylinder, 2 is a cone, 3 is a feeder, 4 is an exit chute, 5
Is a hopper, 6 is a granular material, 20 is a link for supporting the cone 2 at four places so as to be movable up and down, left and right, 21 is a connecting pin of the link 20, 22 and 23 are link mounting plates, and 30 is a feeder 3
Cylindrical casing, 31 is a rotating body, 32 is a powder-particle receiving surface,
Reference numeral 33 denotes a powder outlet at the lower end of the hopper 1, reference numeral 34 denotes a powder / medium circulating path, reference numeral 35 denotes a scraper, reference numeral 36 denotes a gate tube which moves up and down to adjust the opening area of the powder / particle outlet 33, and reference numeral 37 denotes the same gate tube. A drive unit for rotating the rotating body 31; 39, an annular track comprising two upper and lower restraining rails having a center at a position eccentric to the rotation axis of the rotating body 31 and inclined vertically. , 40 are rollers on the same track, 41 is a roller mounting arm for mounting the rollers on the cone 2, 42
Is a connecting plate for connecting the upper and lower annular tracks 39, and 43 is a connecting plate mounting bolt.

In this embodiment, the cylindrical body 1 of the embodiment is connected to the lower opening of the hopper 5 for storing the granular material. The granular material 6 of the hopper 5 is guided in the outer peripheral direction by the cone 2 via the cylindrical body 1, and moves from the granular material discharge port 33 onto the granular material receiving surface 32 of the rotating body 31. When the rotating body 31 is rotated by the drive unit 38, the granular material 6 on the granular material receiving surface 32 is also rotated and scraped out from the granular material receiving surface 32 by the scraper 35 and discharged to the outlet chute 4. When the rotating body 31 rotates, the annular track 39 eccentric to the rotating shaft also rotates, and the roller 4
0 is moved from the rotation axis to the left and right by the amount of eccentricity of the trajectory by about several mm to several tens mm, and the vertical direction is also raised and lowered. Thereby, the cone 2 swings right and left and up and down. The four cones 2 are swingably supported by a pair of upper and lower links 20, and the cones 2 are held by rollers 40 so as to be able to move vertically and horizontally.
Thereby, the granular material around the cone 2 is shaken to eliminate the bridging phenomenon around the cone 2, and the granular material is smoothly moved toward the rotating body 31.

[0008]

As described above, according to the present invention, since the cone is swung up, down, left, and right, the powder around the cone is moved more strongly than mere vibration, thereby eliminating the bridging phenomenon at the position of the cone and smoothing. The powder is sent to the feeder to ensure the powder supply. In addition, since the oscillating mechanism is configured to swing by the eccentric up and down track and the roller attached to the cone constrained by the track, the cone can be strongly swung with a simple and inexpensive structure. Further, the bridging phenomenon can be surely eliminated.

[Brief description of the drawings]

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

FIG. 2 is a partially cutaway plan view of the embodiment.

FIG. 3 is an explanatory view showing a swinging unit of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Cone 3 Feeder 4 Exit chute 5 Hopper 6 Granular material 20 Link 21 Connecting pin 22 Link mounting plate 23 Link mounting plate 30 Cylindrical casing 31 Rotating body 32 Granular material receiving surface 33 Granular material discharge port 34 Powder Granular transport path 35 Scraper 36 Gate cylinder 37 Handle device 38 Drive unit 39 Track 40 Roller 41 Roller mounting arm

Claims (1)

(57) [Claims] A feeder is provided at the bottom of a cylindrical body for accommodating the granular material, the feeder for transferring the granular material on the outer periphery of the bottom to the outside of the cylindrical body. In a powder feeder provided with a cone of a substantially conical shape for guiding the cone, the cone is swingably supported up and down and left and right, and swing means for swinging the cone up and down and left and right are provided inside the cone , and Powder
Eccentric with the center of rotation of the rotating body of the feeder that rotates and transports the body
And an annular orbit that goes up and down is provided on the rotating body inside the cone,
Roller attached to the same track inside the cone and swings
A powder feeder characterized by comprising means .