JPS58113036A - Granular powder feeding device in storing hopper - Google Patents

Abstract

PURPOSE:To easily prevent block and bridge phenomenon of granular powder by disposing a rotary shaft in a storing hopper, providing the rotary shaft with a stirring blade comprising a spiral rod, and providing the stirring blade with a stirring arm formed of an elastic rod. CONSTITUTION:When granular powder (a) is stored in a storing hopper 3, and a variable reduction motor 10 is driven, a stirring blade 12 comprising a rotary shaft 11 and a spiral rod is rotated to push up the granular powder (a) toward an outlet 2, so as to be sequentially fed out at the outlet 3. At this time, a stirring arm 14 formed of an elastic rod is rotated in a body with the stirring blade 12. If the internal pressure of the granular powder (a) is high, the stirring blade 12 is vertically contracted so that the stirring arm 14 is floated by such spring force, and as the internal pressure is lowered, the stirring arm 14 is automatically moved and rotated corresponding to the elasticity of the stirring blade 12. Thus, the granular powder (a) is converted and stirred in such a manner that the granular powder (a) is convex at the central portion of the storing hopper 3, whereby the granular powder can be smoothly fed out through the outlet 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an apparatus for automatically and smoothly feeding powder and granules.
This invention relates to improvements in the feeding device of h-machines.

Reliable feeding of granular powder or viscous material is the most important thing and is an element that affects the efficiency of machines and manufacturing processes, but the particle size, humidity, and form of granular powder vary, such as glaze. In a storage tank hopper or silo, which is a storage tank device for raw materials, particles of powder such as talc, powdered rubber, synthetic ah powder, etc., which are said to have the slowest flow, are pressed against the inner surface of the hopper or silo during storage. Otherwise, due to humidity, viscosity, etc., the powder may stick to the wall surface, or the powder may form agglomerates.

Therefore, the angle of inclination of the funnel shape leading to the exit of the hopper is increased to nearly 6θ degrees, and a spiral feeding device that turns around in the center is installed, and a vibration device is attached. Only the powder and granules in the device are fed out, creating a cavity, which stops the flow in other hoppers, causing blocking or bridging near the hopper outlet, and even if a feeder is installed at the bottom of the outlet, feeding is not possible. There is a drawback that the leaves do not come out smoothly. For this reason, it was necessary to have someone monitor the work, such as manually poking with a stick-like object to create a flow. In addition, in the case of a postscript, a mechanically large device including a hopper (or silo) is required, which makes the entire feeding device large and economically expensive, and it also has disadvantages such as causing vibration noise pollution. there were.

The present invention has been made to eliminate the above-mentioned drawbacks, and by providing a simple mechanism, the powder in the storage tank hopper (or silo) can be removed without the need for a large funnel-shaped slope angle in the moving equipment. .

The purpose of this method is to prevent block and bridging phenomena of granules and to enable smooth transfer of a certain amount of powder and granules.

An embodiment of the present invention will be described below with reference to the drawings.

Mounting fittings (i) 151 are provided on the left and right sides of the silo or storage tank hopper (upper frame plate 4 for powder), which has a funnel-shaped inclined inner wall surface (υ) and a small outlet (21) at the bottom, and a second fitting X (
61 (a motor mounting base with a bearing cylinder (7) in the center of the lower surface across 61 (a single vibrator 7 in which 61 is mounted so that it can be moved left and right in the center of the hopper) (i) Tighten and loosen (a) Install the variable speed reduction motor (2) via the upper 4C/Ii gearbox (9) of the motor mount (-1), and attach the variable speed reduction motor (2) to the bearing tube (7) of the motor mount (-1). A shaft ■, which is transmitted and rotated by a deceleration motor, is pivotally supported, and the root of the stirring impeller, which is a spiral rod formed by winding a stainless steel rod with a square cross section into a coil shape, is attached to the shaft toward the outlet. A collar is deposited, and the upper part extends downwardly from the upper outer periphery of the stirring blade, and the lower part is placed in a storage tank hopper (or a cage).
) From the funnel-shaped inclined inner wall surface (1) of (1), exit (I
A structure equipped with a stirring arm (B) made of an elastic rod made of stainless steel or other steel, which is curved in a dog-leg shape along C, and curved in a y-V shape so that its tip is close to the outlet when viewed from above. The figure (to) is the power distribution control panel.

The present invention has the above configuration, and when used, the storage tank hopper (
(or silo) (When a desired powder (1) such as powdered rubber, talc or synthetic resin powder, granules, etc. is stored in 31 and the switch on the power distribution control panel (to) is turned on, the variable speed reduction The motor (to) is driven, and the shaft ■ and the stirring blade (2) of the spiral rod are rotated at a constant operating speed, and the storage tank hopper (3) is rotated.
A single grain of powder in the center is pushed down toward the lower outlet 1 as shown by the arrow in FIG.

It is sequentially fed from the outlet (2). In this case, powder and granules are usually transferred from the center of the hopper to the outlet.
Inside the hopper, there is a concave-like clump, and blocking or bridging occurs near the outlet due to the particle size, humidity, viscosity, etc. of fat powder and granules, which often prevents smooth transfer to the outlet or makes transfer impossible. However, in this device, the stirring arm is rotated together with the stirring blade sas consisting of the spiral rod, and when the internal pressure of the powder and granules in the storage tank hopper (1) is high, the spiral stirring blade ( ) contracts up and down, and the force of the spring causes the agitation arm to move into the storage tank hopper (3).
1 and the funnel-shaped inclined inner wall surface (1),
In addition, as the internal pressure decreases, the stirring arm (to) rotates while automatically moving according to the elasticity of the spiral stirring blade (to) on the side and inclined inner wall surface (1), so that the powder and granules in the hopper are removed. As shown by the arrow in Fig. 3, it pushes up toward the center of the upper part, and in combination with the pushing down action of the stirring blade (2) at the center, a convection action as shown by the arrow (a) occurs inside the storage tank hopper (31), and the storage tank is constantly Hopper (or silo) (center of 3I)
Since one grain of powder is stirred by convection, it tends to become a medium.
Due to this movement, the powder and particles in the storage tank hopper (or silo) are smoothly transferred from the outlet (2) to the feeder, chute, conveyor, etc. without causing blocking or bridging near the outlet. It is capable of feeding raw materials regularly and continuously.

1. In the device of the present invention, if the storage tank hopper or soil is large, a variable kneading motor is installed on the side of its body wall, and a transmission shaft is installed on the horizontal axis so as to transmit power to the stirring blades. It may also be used horizontally.

Conventionally, when sending out powder or granules from a storage tank for 1 grain of glazed powder, the funnel part needed to have a slope angle of 60 degrees. According to the apparatus fllK of the present invention, the blocking phenomenon and bridging of powder and granules in the storage tank hopper or silo can be extremely easily prevented by the movement of the stirring blade by the J11 spindle and the stirring arm integrally attached to the stirring arm KR2. Therefore, it is possible to smoothly and continuously feed powder and granules from the outlet even at a narrow angle of 3θ degrees on the inclined inner wall surface of the funnel part, and the volume (accommodating capacity) can be increased with a small size. Not only is it possible, but it is also possible to transfer powdered rubber, Merck, synthetic resin powder, and granules smoothly from beginning to end and continuously in an automated manner, which was a problem for the Ministry of Manufacturing Industry due to poor tonnage flow. In addition, the structure of the device is extremely simple, and it is possible to provide a single powder automatic feeding device that is smaller and has better performance than conventional devices that require vibration equipment and large feeding mechanisms. It is possible to completely prevent the occurrence of water leakage, which eliminates the need for one-man labor and monitoring, which saves labor.The configuration of the single device is extremely simple, so it can be installed in storage devices such as conventional storage tank hoppers or silos!VJ!IVc installation It has features such as being able to perform maintenance and repair management easily.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and FIG. 1 is a plan view;
The first figure is a partially cutaway front view, and the third figure is a vertical view of wjT11.
It is a front view. (1)...funnel-shaped inclined inner wall surface, (2)...exit, (31
...Storage tank hopper (or Suiro), ω...Variable speed reduction motor, (B)...Shaft, (To)...Spiral rod-shaped stirring blade, Trout...Stirring arm. Figure 81 Figure 3

Claims (1)

[Claims] l Storage tank hopper (or silo) with a narrow outlet
A shaft rotated by a variable speed reduction motor is installed inside the shaft, and a stirring blade made of a metal spiral rod is vertically installed on the shaft toward the outlet. A feeding device for a single particle of powder in a storage tank hopper, characterized by being provided with a stirring arm made of a steel elastic rod curved in a dogleg shape along a funnel-shaped slope @ffJK.