SU1576425A1 - Apparatus for automatic feeding of portion of loose material - Google Patents

Abstract

The invention relates to the dosing of bulk material with automatic weight control of the material and the quality of its delivery to the container. The aim of the invention is to improve the accuracy of the automatic feeding of small portions. The device comprises a feeder, a weighing unit located above it, equipped with a manipulator in the form of a flat crank mechanism, consisting of crank 7 crank 7 with cam 8, crank 9 with roller 10, used for contact with guide 12. Lastly consists from three consecutively contiguous areas — horizontal and two inclined, located at different angles to the horizon. The manipulator ensures a smooth fit of the removable cup on the scales, which control the cleanliness of adhesion of the previous batch, and in the event of the presence of residue, the cup is sent for re-unloading. 2 Il.

Description

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FIG. 2

Claims (2)

Claim 1. A device for automatically feeding a portion of bulk material, comprising a feeder, a weighing unit located beneath it, provided with a dosage container, and a feeder drive with a control unit, characterized in that, with the aim of 5Q improving the accuracy of automatic feeding of small portions, it is equipped with a guide consisting of three consecutively connected sections - horizontal and two subsequent, located at different angles to the horizon, vibrator 55 and a manipulator with a drive in the form of a crank mechanism, freedoms the connecting rod end is equipped with a roller that serves to contact the guide, and the dosing tank is made in the form of a tray with vertical suspensions, and grippers for suspensions are installed on the roller axis, and the control unit consists of a cam placed on the crank axis with the possibility of contact with control switches feeder and manipulator drives, and two contact pairs of cup mass control with a common contact on the lever of the weighing mechanism, included in the feed mode switching circuit, made in the form of two control relays, vibrator is mounted at the free end of the horizontal portion of the guide to be in contact with the suspension of the tray. 2. The device according to π. 1, characterized in that the crank cam is made with a peripheral section L, determined by the formula Ε> ω · τ · g, where ω is the crank rotation speed, rad / s; τ is the calming time of the weight mechanism, s; g is the distance from the axis of the switch. crank up ΑΆ Figure 2 Compiled by G. Bogachev Editor A. Sandor Order 1823 Tehred A. Kravchuk Proofreader O. Kravtsova Circulation 539 Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the USSR State Committee for Science and Technology 1 13035, Moscow, Zh-35, Raushskaya nab., D. 4/5 Production and Publishing Plant "Patent", Uzhgorod, st. Gagarina, 101