SU889280A1 - Device for filling mould by metallic powder in manufacturing multilayer articles - Google Patents

Description

(5) DEVICE FOR FILLING THE PRESS FORM AND POWDER WHEN RECEIVING MULTILAYERED - PRODUCTS

one

The invention relates to powder metallurgy, in particular, to devices for filling a mold in the preparation of multilayer articles from powder compositions.

A device for filling a mold with a powder composition is known, which contains a vibrator and a shape, the body of which is mounted on the movable table of the vibrator 1.

A disadvantage of this device is the inability to produce multi-layered products.

The closest in technical essence, and the effect achieved, is a device for filling the mold with powder for multilayer products, including a vibrator, a punch mounted on the vibrator table, and a matrix

A disadvantage of this device is its low productivity, since it is necessary to have a set of shapes to obtain a multilayer product.

and punches of different diameters and first fill the case with the smallest diameter, press the first composition, press the obtained compact into a larger diameter case, fill the cavity with the next composition, press it again, etc., until the required multilayer product is obtained.

The purpose of the invention is to increase the productivity of the process.

Claims (2)

The goal is achieved by the fact that in the device for filling the mold with powder upon receipt. multilayer compositions including a vibrator, a punch mounted on the vibrator table, and a matrix j inside the matrix, coaxially with it and between themselves, are mounted separating sleeves having a grooved punch in the upper part of the funnel; In the upper part of the device 3 there is a lever with a counterweight having a cone in its middle part, which interacts with the internal separating sleeve. The drawing shows a diagram of the device. The device contains a vibrator with frame 1 and table 2, a punch 3 with steps and 5, a matrix 6 covering the punch 3, thin-walled separating sleeves 7 and 8, coaxially mounted in the matrix 6, with their ends 9 and 10 covering the corresponding steps 4 and 5 the punch 3, the funnel P and 12 with longitudinal through grooves 13 in its narrow part. At the same time, protrusions 1A and 15 are made on the separation sleeves 7 and 8. The device also includes a mechanism for clamping the internal separation sleeve 8 to the punch 3, made in the form of a base 16 mounted on the frame 1 of the vibrator and the single-arm lever 17 with a load 18, one end 17 is pivotally connected to the base 16, and the middle part is provided with a separating sleeve 8. The device also contains a funnel 19 attached to the separation sleeve 8. The device operates as follows. The punch 3 is rigidly connected to the vibrator table 2, the matrix 6 is mounted on the punch 3, placed in the matrix at the punch stage, the end 10 of the sleeve 7 with the lug 15. The end 9 is inserted into the matrix 6 at the stage 5 of the punch 3 separating sleeve 8. the protrusion 1. Using the lever 17 with a load 18, the inner separation sleeve 8 and the sleeve 7 are pressed against the matrix 6 and the punch 3. Then the table transfer mechanism 2 of the vibrator is moved, which causes the form to vibrate at a predetermined frequency and begin filling the corresponding compositions into the corresponding funnel 11,12 and 19 to fill each cavity between the bushings 7 and 8 and the die 6. After filling the removed spacer sleeve 7 and 8 of the matrix 6, is removed with a punch die 3 with the section 2 of the vibrator, and compressed multilayer preform. This device helps to obtain a multilayer billet for one filling process without intermediate pressing, to ensure reliable adhesion of the layers among themselves, to obtain a layer of a given thickness. Claim 1. Device for filling the mold with powder when producing multilayer products, including a vibrator, a punch mounted on the vibrator table, and a matrix, characterized in that, in order to increase the productivity of the process, inside the matrix, coaxially with it and between them are installed separating sleeves having grooves in the upper part of the funnel, the punch is made stepwise, with the outer part of each step covered by a separating sleeve. 2. The device according to claim 1, characterized in that in the upper part of the device there is a lever with a counterweight, having in its middle part a cone that interacts with the internal separating sleeve. Sources of information taken into account in the examination 1.Rakovsky V.S. Poroshkova metallurgists. Sat works NIIAVTOPROM, vol. k, 1956, p. 3 2. Shatalova I.G. and others. Physical and chemical principles of vibratory compaction of powder materials. M, Science, 1965 .. f6v.