RU174759U1 - Dispenser of powder material for a device for the layer-by-layer production of bulk products - Google Patents

Abstract

The invention relates to the field of laser processing of materials and can be used mainly in devices for layer-by-layer production of bulk products from powder materials. A powder material dispenser for a device for layer-by-layer production of volumetric products includes a hopper 1 for placing powder material, a housing 2, a dispensing housing device. The metering device is made in the form of rollers 3, 4 mounted in the housing 2 with the possibility of rotation in parallel with the gap Z, with drives 5, 6. The metering device is also made with a device for regulating the gap between the rollers 3, 4 in the form of a fixed joint connected to each other by a hinge 7 8 and the movable 9 parts of the housing 2, in which the corresponding rolls 3, 4 are installed, and is equipped with a regulator 10 for tilting the movable part relatively stationary. For loosening the powder, the device is equipped with a screw 11. The powder material is supplied to the technologically predetermined sections of the construction platform from the hopper 1 through the rolls of the batcher 3, 4. Before manufacturing the products, the powder material is divided into fractions and the powder material of one fraction is fed into the batcher, having previously set the corresponding distance Z between rolls 3, 4 dispensers. The gap is regulated by regulator 10, changing the slope of the movable part of the housing 9. Before feeding the powdered material through the rollers 3, 4 it can be loosened by means of the screw 11. Changing the dosage of the powdered material in the corresponding section of the construction platform is carried out by means of regulated changes in the speed of rotation of the metering rollers. This technical solution will allow reduce the consumption of powdered material, as well as change, if necessary, the layer thickness in predetermined areas.

Description

The utility model relates to the field of laser processing of materials and can be used mainly in devices for the layered manufacturing of bulk products from powder materials.

Known dispenser, comprising a container for placing powder material, a housing, a metering device located in the housing [1].

The known dispenser is made in the form of an eccentrically located shaft located in the housing, on which a scoop is mounted. When the shaft rotates, the scoop captures the powder and feeds it to the construction platform.

When using this device, it is impossible to smoothly regulate the amount of powder supplied from the dispenser to various technologically specified areas, which leads to its excessive consumption.

The result to which this technical solution is directed is to reduce the amount of powder consumed.

This result is achieved due to the fact that in the dispenser, including the hopper for placing the powder material, the housing, its dispensing device located in the housing is made in the form of rolls with a drive mounted in parallel with the clearance and rotatable with the drive, and the dispenser is made with a clearance adjustment device between the rolls. The metering device is made in the form of a pivotally connected to each other stationary and movable parts in which the corresponding rolls are installed. The dispenser, to change the gap between the rollers, is equipped with a tilt regulator for the movable part of the housing relatively stationary.

An example implementation of the claimed utility model is illustrated by drawings, where in FIG. 1 - shows the dispenser, in FIG. 2 - section aa.

The dispenser includes a hopper 1 for accommodating powder material, a housing 2, a dispensing device located in the housing. The dosing device is made in the form of rolls 3, 4 mounted in the housing 2 with the possibility of rotation in parallel with the clearance Z with drives 5, 6.

The dispenser is also made with a device for adjusting the gap between the rollers 3, 4 in the form of a housing 8, which is connected to each other by a hinge 7 and the movable 9 parts of the housing 2, in which the corresponding rollers 3, 4 are installed, and is equipped with a regulator 10 for tilting the movable part relative to the stationary one. For loosening the powder, the device is equipped with a screw 11.

The device operates as follows.

The supply of powder material to the technologically specified sections of the construction platform is carried out from the hopper 1 through the rolls of the dispenser 3, 4. A pipeline can be provided for feeding the powder into the hopper.

Before manufacturing the products, the powdered material is divided into fractions and the powdered material of one fraction is fed into the dispenser, having previously set the corresponding distance Z between the rolls 3, 4 of the dispenser. The gap is adjusted by the regulator 10, changing the slope of the movable 9 of the housing.

Before feeding the powdered material through the rollers 3, 4 it can be loosened by means of a screw 11.

Changing the dosage of the powdered material in the corresponding section of the construction platform is carried out by means of regulated changes in the frequency of rotation of the metering rolls.

Thus, this technical solution will reduce the consumption of powdered material, as well as change, if necessary, the layer thickness in predetermined areas.

The source of information

1. Application US No. 201440353585, MKI B22F 003/105, 2014.

Claims (1)

A powder material dispenser for a layer-by-layer device for manufacturing bulk products, comprising a powder material hopper, a housing and a metering device located in the housing, characterized in that the metering device is made in the form of a fixed and movable parts pivotally connected to each other, in which rolls are rotatably mounted in parallel with drives with the formation of a gap between them, while the movable part of the metering device is equipped with a regulator of its inclination relative to the fixed part with the possibility of changing the gap between the rolls.

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