Powder/granular material feeding device

Abstract

A provided powder / granular material feeding device fully satisfies the function of sufficiently preventing bridges and ratholes and the function of favorably stabilizing the filling rate of an outlet portion. Moreover, the powder / granular material feeding device does not require consumable items such as a flexible chute or leave a large amount of powder / granular material in a specific region inside a chute. The powder / granular material feeding device includes: a hopper 1 that receives powder / granular material; an outlet portion 2 that discharges powder / granular material; a chute 3 that guides, into the outlet portion 2, powder / granular material dropped from the hopper 1; and a stirring part 4 that rotates stirring members 4b about a shaft 4a protruding so as to tilt diagonally upward from the lower part of the interior of the chute 3.

Description

technical field [0001] The present invention relates to a powder or granule supply device, and particularly relates to a powder or granule supply device suitable for such cases as quantitatively supplying powder or granule. Background technique [0002] A powder or granular material supply device that quantitatively supplies powder or granular material or the like is also called a so-called feeder is widely known. like Figure 20 , Figure 21 As shown in an example, this powder supply device has: a hopper 51 into which powder is fed; a discharge part 52 having a screw conveying device 52a for discharging powder; The chute 53 of the part 52; the agitating device 54, which is also called a so-called agitator, is used to agitate the powder and grain inside the chute 53 and the hopper 51. In addition, in addition to the above-mentioned structural elements (hopper 51, discharge part 52, chute 53, and stirring device 54), the powder or grain supply device for quantitatively supp...

AI Technical Summary

Problems solved by technology

[0011] On the contrary, in this powder supply device 90, there are the following disadvantages: the whole circumference of the corner of the chute 91 needs to be welded; the material is easy to adhere and remain at the corner of the chute 91; Chute 53 (refer to Figure 21 ) is longer than the screw conveyor, so it becomes a double support structure, etc.

Therefore, the filling performance of filling the powder and granular body into the screw conveying device 84 is lower than that of the structure with internal stirring.

In addition, since the flexible chute 81 itself is swayed by the swaying of the paddle 83, it is easy to cause a deviation in the weight value, and when the discharge amount is controlled while measuring, it becomes a cause of poor supply accuracy.

[0020] As mentioned above, in the conventional powder supply device, in any form of structure, there are advantages and disadvantages, and all the following functions cannot be well satisfied: good prevention function to prevent bridging and rat holes; The supply area for supplying powder and granules is sufficient, and the function of stabilizing the filling rate of the discharge part is good; the function of suppressing the residual amount to a small amount, etc.

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