JP3009171U - Powder feeder - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a compact and efficient powder feeder capable of smoothly flowing down and smoothly discharging powder particles in a hopper so as not to be clogged at a cone position. [Constitution] At the bottom of a cylinder 3 connected to a discharge port 2 of a hopper for accommodating the powder, a feeder 4 for transferring the powder inside and outside the cylinder to the outside of the cylinder is provided. A cone 5 having a substantially conical shape that guides the powder and granules to the outside is provided at a position at the center of the bottom of the cylindrical body 3 above, and air is passed from the inside of the cone to the outside of the cone without passing the powder on the surface of the cone. The air blowing surface 6 is provided for blowing air.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a powder feeder that is installed in a storage tank, a tank, and a storage chamber (collectively referred to as a hopper in the specification) that stores powder and granules, and discharges the powder and granules stored therein to the outside.

[0002]

[Prior art]

 As a conventional powder feeder, a feeder is provided at the bottom of the hopper to transfer the granules inside the bottom of the hopper to the outside of the hopper, and the granules are placed above the feeder at the center of the inside of the bottom of the hopper. 2. Description of the Related Art There is known a powder feeder having a structure in which a cone body that guides to the outside and a convex body (collectively referred to as a cone in the specification) that is curved so as to bulge in the center are provided. In this type of powder feeder, the granular material in the hopper is guided to the outside by the cone at the bottom, captured by the lower feeder, forcedly transferred to the outside of the hopper, and discharged. However, in this type of powder feeder, when the amount of powder in the hopper is large and the powder pressure is high, the powder may cause bridging between the cone and the inner surface of the hopper depending on the type and shape of the powder. It may occur that it does not flow smoothly toward the feeder after being raised. In order to solve this, it has been attempted to attach a vibrator to the outer peripheral surface of the feeder or hopper to eliminate the bridging phenomenon and to smooth the movement of the powder and granules. However, in this method, since vibration is applied to the outer circumference of the feeder / hopper, the vibration is not efficiently transmitted to the outer circumference of the cone, which is the most clogged, and there is a problem that a large vibration exciter is required.

[0003]

[Problems to be solved by the device]

 The problem to be solved by the present invention is to solve these problems of the conventional powder feeder, and to make the powder particles in the hopper small and efficient so that the powder particles do not get clogged at the cone position and flow smoothly. To provide a powder feeder capable of continuous discharge.

[0004]

[Means for Solving the Problems]

 The configuration of the present invention which solves such a problem is a feeder for transferring powder particles inside and outside the cylinder to the bottom of the cylinder connected to the hopper discharge port for storing the powder particles. In a powder feeder with a cone-shaped cone that guides powder particles to the outside at the center of the bottom of the cylinder above the feeder, the powder passes through the surface of the cone. The powder feeder is characterized by having an air blowing surface that blows air from the inside of the cone toward the outside of the cone. The feeder of the present invention has various types such as a scraper system, a masu system, and a rotary ring system, and is not limited to the scraper system type of the embodiments described below.

[0005]

[Action]

 In the present invention, the granular material in the hopper enters the cylinder through the outlet, flows down so as to be guided to the outside by the cone inside the bottom, is introduced into the feeder from the outside, and is fed to the outside of the hopper by the feeder. It is transferred and discharged. Here, since the air blowing surface is provided on the surface of the cone provided at the center of the inside of the bottom, air is blown from this air blowing surface to move the granules on the outer surface of the cone and at the same time To improve the flow of powder and granules along the outer surface of the cone, eliminate the bridging phenomenon on the outside of the cone and allow the powder and granules to flow down smoothly, ensuring smooth continuous discharge. It is possible.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of the embodiment, FIG. 2 is a plan view of the embodiment, and FIG. 3 is an explanatory view showing a main part of the embodiment. In the figure, 1 is a hopper, 2 is an outlet for the powder particles of the hopper 1, 3 is a cylinder, 4 is a feeder, 5 is a cone, 6 is an air blowing surface, 7 is a cylinder 3 and a cone 5. This is the outlet for the powder particles. Reference numerals 40 to 46 are configurations relating to the feeder 4, 40 is a rotary disk of the feeder 4, 41 is a powder receiving surface of the rotary disk, 42 is a rotating shaft of the rotary disk 40, and 43 is a powder receiving surface 41. The scraper is inserted, 44 is a discharge part of the feeder 4, 45 is a discharge port, 46 is a motor part for rotationally driving the rotary shaft 42, and 50 is a support member of the cone 5. Numerals 60 to 64 are configurations relating to the air blowing surface, 60 is a canvas attached to the slanted portion of the cone 5 in which the slanted surface is cut out, and a membrane member that allows only the air to pass without passing through the granular material, and 61 A member for supporting powder pressure and passing air through a porous and rigid punching metal, a discharge chamber plate 62 for forming an air reservoir, 63 an air pipe connected to an external air pump 64 via a supporting member 50 It is what is done.

In this embodiment, the powder or granular material in the hopper 1 enters the cylindrical body 3 of the powder feeder from the outlet 2 thereof, and is moved to the outside of the cylindrical body 3 by the cone 5 so that the cylindrical body 3 It flows out from the outlet 7 at the lower end to the powder receiving surface 41 of the rotary disk 40 of the feeder 4. The rotary disc 40 is rotated at a predetermined rotational speed by the motor unit 46, and the powder on the granular material receiving surface 41 is also rotated together with the rotation of the rotary disc 40, and the scraper 43 of the discharge unit 44 is used. The powder or granular material on the powder or granular material receiving surface 41 is scraped out to the discharge port 45 and discharged. Here, air is sent from the air pipe 63 to the air blowing surface 6 of the cone, and is blown out of the cone 5 through the punching metal 61 and the canvas 60. The air blown out from the air blowing surface 6 gives vibrations to the powder particles in the cylindrical body 3, and the outer surface of the cone is smoothed by the air, so that the powder particles flow down smoothly. This eliminates the bridging phenomenon. The position, size and shape of the air blowing surface of the present invention are not limited to those of this embodiment.

[0008]

[Effect of device]

 As described above, according to the present invention, the cone is provided with an air-blowing surface to discharge the air so that the surface of the cone is made smooth, and the granules are shaken and vibrated to bridge the granules. It allows a smooth continuous discharge without causing the ringing phenomenon.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an example.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is an explanatory diagram showing a main part of the embodiment.

[Explanation of symbols]

 1 Hopper 2 Discharge Port 3 Cylindrical Body 4 Feeder 5 Cone 6 Air Blowout Surface 7 Outlet 40 Rotating Disc 41 Powder Granule Receiving Surface 42 Rotating Shaft 43 Scraper 44 Discharging Port 45 Discharging Port 46 Motor Unit 50 Supporting Member 60 Canvas 61 Punching Metal 62 blowout chamber plate 63 air pipe 64 air blower

Claims (1)

[Scope of utility model registration request] 1. A feeder for transferring powder particles inside and outside the cylinder to the outside of the cylinder is provided at the bottom of the cylinder connected to a hopper discharge port for storing the powder particles, and above the feeder. In a powder feeder with a substantially cone-shaped cone that guides the powder particles to the outside at the center of the bottom of the cylinder, direct the powder from the inside of the cone to the outside of the cone without passing the powder on the surface of the cone. A powder feeder having an air blowing surface for blowing air.