JPH0547144Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a metering supply device suitable for use in supplying powdery materials, particularly sawdust, etc., which tend to harden in a hopper due to moisture absorption.

(Prior art) When the powder contained in the hopper is continuously taken out via the supply mechanism connected to the bottom of the hopper, the powder hardens due to moisture etc. and becomes a single piece, causing a bridge above the supply mechanism. As a means of preventing the hopper from forming and becoming unable to fall, it is common to use a stick or the like to poke it from above the hopper, or to attach a vibrator to the outer wall of the hopper.

(Problem that the invention aims to solve) However, methods such as poking from above with a stick require manpower, and even when using mechanical force, special equipment is required, and pressing from above does not allow powdery particles to be removed. The disadvantage was that it warped and compacted into the bottom of the hopper. In addition, attaching a vibrator to the outer wall of the hopper or manually hitting it with a hammer is inefficient as it loosens the powder through the hopper wall, and if the hopper is made of soft material or glass for the purpose of use. For this reason, for example, in poultry feed tanks that have a glass window on the side of the hopper to visually check the content, a plate is installed at the bottom of the hopper using a coil spring.
There are some devices in which the bridge formation of the contents is destroyed by the free vibration of the plate, but this effect cannot be expected if the vibration is simply caused by a spring.

(Means for solving the problem) In contrast, this invention provides a bullet ray formed in advance in the hopper in the shape of a conical spiral along the inner circumferential surface of the hopper, and uses this bullet ray to rotate the coil screw of the feeding mechanism. It is constructed so that it is constantly raised and lowered using the bullet, and the powdery material is loosened over a wide range by the vibration caused by the raising and lowering of this bullet and the rebound force.

(Example of the invention) An example of the invention will be explained with reference to the drawings.
This embodiment shows an apparatus that connects to a non-flush toilet to promote microbial decomposition of human waste and compost it, and a device that supplies a fixed amount of human waste decomposition accelerator made of sawdust or the like to which microorganisms have been added in advance.

In Fig. 1, 1 is a hopper, and this hopper is made of nylon to prevent moisture from evaporating from the sawdust, which is the main material of the human waste decomposition accelerator, and forming condensation on the inside of the hopper at night.
It is made of vinyl or cloth as a bag that narrows downward. As shown in FIG. 2, this hopper 1 is connected to the upper end of a T-shaped pipe 4, which has one end connected to a motor chamber 2 and the other end connected to a straight pipe 3, via a clamp 5. Both ends of the support shaft 7 are suspended and attached to the base.

A deceleration motor 8 is provided within the motor chamber 2 and connected to a series of coil screws 10 via a universal joint 9. This coil screw 10 has a crank-shaped bent portion 11 formed by stretching a portion of the coil into a straight line at a portion immediately below the lower end of the hopper 1.

Inside the hopper 1, there is an elevating member 12, which is made by twisting a piano wire with a diameter of 1.6 at a lead angle of about 60° and winding it in a conical spiral shape along the inner surface of the hopper. It is attached by being wrapped around the bent portion 11.

(Effect of the invention) This invention has the above structure, and the deceleration motor 8
A fixed amount of the powder in the hopper 1 is pushed through the straight pipe 3 by the coil screw 10 which is rotated through the coil screw 10, but this invention is particularly advantageous in that the hopper 1 is equipped with a conical spiral spring-shaped elevating member 12. However, since the lower end is wound around the crank-shaped bent portion 11 of the coil screw 10, the powder in the hopper 1 is constantly agitated and there is no risk of bridging. That is, since the upper half of the lifting member 12, which moves up and down by the rotation of the coil screw 10, is buried in the powder, the spring is stretched when it goes down, and the elasticity of the spring is stretched when it goes up. It gathers its power and rises all at once, jumping while turning its free apex from side to side. In this way, the powder in the hopper 1 is constantly agitated by the elevating member 12.

As described above, since this invention does not directly vibrate the hopper itself, it is suitable for use in an apparatus having a hopper made of a soft material as described above, and the stirring by the elevating member 12 is performed with elastic force. Therefore, it is effective even against powdery substances that tend to harden, such as sawdust, which is light in weight and has an angular surface. It has many advantages, such as the fact that it does not require a separate drive mechanism and can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view, and FIG. 2 is a hopper oblique view. 1...Hopper, 2...Motor room, 3...Straight pipe, 4...T-shaped pipe, 8...Deceleration motor, 10...
... Coil screw, 11 ... Crank-shaped bending section, 12 ... Lifting member.

Claims (1)

[Scope of utility model registration request] A T-shaped pipe is connected to the lower end of the vertical hopper that narrows downward, and a motor chamber is connected to one side and a straight pipe is connected to the front and rear openings of this T-shaped pipe, and a coil is inserted loosely into the straight pipe. In a device in which a screw is connected to a deceleration motor provided in a motor room, an elevating member 12, which is formed by roughly winding a thin bullet wire in a conical spiral along the inner wall of the hopper 1, is placed in advance in the hopper 1 at one end thereof. A quantitative supply device for powdery material, in which the lower end of the coil screw 10 is engaged with and connected to a crank-shaped bent part 11 which is bent into a part of the coil screw 10.