CZ21457U1 - Screw feeder - Google Patents

Description

Technical field

The subject of the utility model relates to controlling the supply of bulk material, for example, to automatic weighing dosing scales.

BACKGROUND OF THE INVENTION

Material weighing is usually carried out in two power stages, rough and fine. The reason for this method is usually the requirement for precise weighing of the dose. The basic requirement is the operative adjustability of the power of the individual weighing phases, for example according to the type of material. Flap, belt conveyor, vibratory feeder or auger feeder are used as a common principle of regulated material feed. The choice of the type of feeding device is influenced by the particular weighing task and in particular by the properties of the material to be weighed. The change of the screw speed is used to switch the output of the screw conveyors. In the case of sticky and poorly flowing materials, additional measures are necessary.

The essence of the technical solution

The dispensing solution of difficult-to-handle materials removes the screw feeder according to the utility model characterized in that it consists of a body for a coarse filling auger with inspection holes in which the coarse filling auger with the drive unit is placed overhung on the swinging bearing units. a hopper for weighing material in which a spiral-shaped auger with a support mandrel and a drive unit is located, and in which there are vault jets driven directly by the auger, and further, by providing a flap in the outlet portion of the auger body.

Clarification of the drawing

Figure 1 is an overall view of the screw feeder with the integrated hopper housing cover removed.

Example of technical solution

The screw feeder consists of two independent systems - augers 2 and 5 in separate bodies 1 and 4. The first system is intended for coarse dosing, the second for fine dosing (for adding). The basis of the screw feeder is also the body for the coarse filling auger with inspection holes 30, in which the coarse filling auger 2, which is driven by the drive unit 3 and which is supported at both ends on tilting bearing units 11 with a cantilever bearing 3. The body of the feeder is followed by an integrated hopper 4 of the material to be weighed, in which a spiral-shaped worm 5 with a support mandrel 6 and a drive unit 7 is placed, the material being conveyed to the integrated hopper 4 for the recharging system. In the reservoir 4 are placed vibration jammers 8 driven directly by the worm 5. In order to achieve the required accuracy there is a flap 9 in the outlet part of the body 1.

Industrial applicability

The device can be used in the field of industrial weighing when dosing difficult materials. It realizes an element for regulating the dosing material, for example, into storage scales.

Claims (1)

A screw feeder, characterized in that it consists of a housing (1) for a coarse filling screw (2) with inspection holes (10), in which a coarse filling screw (2) with a drive unit (3) mounted on a pivotable bearing units (11), wherein the housing (1) 5 is connected to an integrated storage hopper (4) for weighing material, in which a spiral-shaped auger (5) with a support mandrel (6) and a drive unit (7) is located and in which the archers (8) driven directly by the auger (5) and in that a flap (9) is located in the outlet part of the screw housing (1) (2).