SU1518677A1 - Feeder/batcher of loose polymeric materials - Google Patents

Abstract

The invention relates to the processing of polymeric materials, in particular, to devices for metering and feeding of slow-flowing polymeric granular materials into molds of automatic lines. The purpose of the invention is the expansion of technological capabilities through the dosing of slow-flowing granular materials, increasing the reliability and accuracy of dosing. The feeder-dispenser contains a hopper 1, a gate 3 combined with a measuring chamber 4 made with an inclined groove 5, a spring-loaded gate 6, a drive 8 for moving the gate and a dose equalization mechanism in the form of a spring-loaded lever 10 with a roller 9. A gap is made between the bunker and the gate, equal to two - three granule thickness. 1 il.

Description

one

(21) 4288695 / 23-13

(22) 07.23.87

(46) 10/30/89. Bul № 40 (72) B.I. Bukhatin

(53) 66.028 (088.8)

(56) USSR author's certificate 802040, cl. B 29 C 31/02, 1979.

(54) FEEDER-BATCHER BULK OF POLYMER MATERIALS

(57) The invention relates to the processing of polymeric materials, in particular, to devices for metering and feeding difficult-flowing polymeric granular materials into molds of automated lines. The purpose of the invention is the expansion of technological capabilities through the dosing of slow-flowing granular materials, higher reliability and accuracy of dosing. The dosing feeder contains a hopper I, a gate 3 combined with a measuring chamber 4 made with an inclined groove 5, a spring-loaded gate 6, a drive 8 for moving the gate and a dose equalization mechanism in the form of a spring-loaded lever 10 with a roller 9. A gap is made between the bin and the gate, equal to two or three grains of granules, 1 sludge.

(L

The invention relates to the processing of polymeric materials, in particular, to devices for metering and feeding hard granular materials into molds of automated lines.

The purpose of the invention is the expansion of technological capabilities by providing metering of slow-flowing granular materials, increasing the reliability and accuracy of metering.

The drawing shows the feeder-dispenser.

The supply of the feeder-doser with a dose-leveling device in the form of a spring-loaded lever with a roller, the combination of the gate with the measuring capacity, the clearance between the bunker and the gate, covered by the roller interacting with the gate, and the oblique groove in the measuring capacity allows the dosing of granular materials that are difficult to flow. jamming i.e. to ensure the reliability of the device, due to the fact that the granules that are simultaneously in the bunker and in the measuring capacity of the gate when meeting the roller occupy an inclined position in the groove, and those granules that are not placed in the groove will not jam the gate, due to the gap between hopper and gate and roller spring-loaded. This design ensures maximum filling of the measuring capacity of the gate with simultaneous compaction of the material in this container, which increases the accuracy

dosage.

For reliable operation of the device when dosing hard granulated materials, as well as to ensure the required accuracy of volumetric dosing, the gap between the gate and the bunker should be 2-3 granule thicknesses, since the clearance of less than 2 granule thicknesses leads to jamming of the mechanism, since its rigidity is not enough to destroy the granule, and when making a gap of more than 3 thick granules, the effect of snatching out of the measuring capacity of the gate does not only occur simultaneously in the bunker and in the measured capacity of the granules, but also in the granules located in the measured capacity, which reduces the accuracy of dosing.

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The feeder-dispenser contains a hopper 1, made with a gap 2 to the gate 3, in which the measuring container 4 is placed with an inclined groove 5, a spring-loaded gate 6j rail 7 connected to the gate and moved by the drive 8, and also a dose equalizer consisting of from the roller 9 and the spring-loaded lever 10. The feeder-dispenser serves the pressing unit 11 of the automatic line.

The device works as follows.

In the initial position, the gate 3 with a measuring tank 4 is aligned with the outlet of the bunker 1 filled with hard granular polymeric materials, for example. GSP-400. Under the action of its own weight, the material fills the measuring capacity. Under the action of the actuator 8, the rail 7 receives a displacement, shifting the gate 3 to the left. At the same time, the granules of the polymeric material located above the surface of the gate 3, the roller 9 of the dose equalizer on their way, are delayed and remain in the bunker 1.

A part of the granules located vertically and being simultaneously in the tank 4 and in the bunker 1, when moving the gate 3, when meeting with the roller 9, takes a horizontal and inclined oriented position in the groove 5, which ensures unrestricted movement of the gate.

The granules that are not placed in the inclined groove are pressed by the roller and pass through the gap 2. This ensures the operation of the device without jamming the gate. Upon further movement of the gate 3, the flap 6 is loaded into the pressing unit and stops. The gateway continues to move, thus emptying the measuring capacity. During the reverse movement of the cube 3, the shutter 6 closes the measuring container from the bottom. The measuring tank is combined with the hopper, and the dosing process is repeated.

By adjusting the pressing force of the roller 9 to the gate, the metering accuracy can be controlled.

Claims (1)

Invention Formula Feeder-batcher bulk polymeric materials containing hopper with 15186776 gate and measured capacity, about tl and -the upper arm with roller, gate combined with the fact that, with the target with the measuring capacity, between the bunker-expansion technological possible rum and gate is made a gap equal to tei by providing 2- 3 granule thickness, the roller is loose-flowing granular material with the ability to overlap the aeration, increase reliability and accuracy and interact with the gate, and the metering, it is equipped with a device capacity made with an inclined dose adjustment in the form of a spring-loaded.