Down weighing box structure

Abstract

The invention provides a down weighing box structure, and belongs to the technical field of auxiliary facilities of down charging machines. The down weighing box structure comprises a bottom plate, a box body that is fixed to the bottom plate, a down input pipe arranged at the upper part of the box body, a down output pipe arranged in the lower part of the box body, and a ventilation window arranged on the box body. The down weighing box structure is characterized in that the box body comprises an upper box body and a lower box body, wherein the upper box body is structured as a circular barrel body, and while the lower box body is structured as a reversed tapered platform body; the upper box body and the lower box body are integrated; an upper box body chamber is communicated with a lower box body chamber; the ventilation window is arranged in the top part of the upper box body; the down input pipe is arranged on the wall of the upper box body and positioned below the ventilation window; the down output pipe is arranged on the wall of the lower box body and positioned at the lower part of the lower box body. With the adoption of the down weighing box structure, the weighing efficiency can be improved, the difficulty at manufacturing can be lowered down; down entering the box body is difficult to float while exhausting air from the ventilation window to the outside, the sinking time of the down is obviously reduced, and the effect of accurately weighing through a weighing sensor can be ensured.

Description

technical field [0001] The invention belongs to the technical field of auxiliary facilities for down filling machines, and in particular relates to a down weighing box structure. Background technique [0002] The down filling machine mentioned above can be seen in the published Chinese and foreign patent documents, Chinese patents such as announcement number CN201518771U (automatic quantitative down filling machine), publication number CN103233300A (a kind of down filling machine), CN103803476A (a kind of down filling machine ), CN102302231A (a down filling mechanism for a fully automatic down filling machine), CN103101871A (automatic down filling machine), CN103101873A (automatic quantitative down filling machine), CN102303838A (a fully automatic down filling machine), announcement number CN202246041U (a kind of down filling machine), CN202099445U (a kind of down filling equipment), CN201381219Y (a kind of down filling equipment), CN201967762U (a kind of down filling machin...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned CN202814517U is known to have the technical effects stated in column 0017 and column 0022-0025 of the instruction manual, but has the following disadvantages: First, because the eider down introduction pipe is arranged above the ventilation window (line 5 of column 0021 of the instruction manual), thus When the down introduction pipe introduces the down into the box cavity by means of pressure gas, since the ventilation window is located below the down introduction tube, the down entrained by the air flow will be rebounded by the wall of the box corresponding to the down introduction tube, resulting in The turbulence of the down is aggravated, which affects the sinking speed of the down, and finally affects the weighing speed of the load cell; second, because the upper part of the box is a cuboid structure, and ventilation windows are set on the four walls of the cuboid (instruction manual Line 3 to 5 in column 0021), so the setting of ventilation windows is more troublesome

In addition, the applicant believes that since the air flow rate is related to the effective air flow area, and has no necessary relationship with the number of ventilation windows, increasing the number of ventilation windows to increase the air flow rate is a technical bias and is useless. Third, because the position of the eider down introduction pipe is located above the ventilation window, the eider down entering the box cavity sinks slowly, because the specific gravity of the eider down is larger than that of the air, and the air will be absorbed by the eider down during the falling process. It flows upwards so that the air can be exhausted from the breathable window to the outside, and when the air flow rises, it will inevitably bring the down to rise, thereby prolonging the time for the down to sink; Fourth, because the upper part of the box is a rectangular parallelepiped and the lower part is an inverted quadrangular platform body, so it is more troublesome to make the box, and since the cuboid and the inverted quadrangular truss have four right-angled sides between two adjacent walls, it will interfere with the sinking of the down, for example, there is adhesion to the down, hanging

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