METHOD AND EQUIPMENT USED FOR CUTTING AND MODELLING OF LEATHER SHEETS OR OTHER MODELLED MATERIALS Russian patent published in 2009 - IPC B29D31/518 A43D86/00 A43D8/06 

FIELD: machine building.

SUBSTANCE: facility operates like follows: cutting and modelling is performed by means of matrix and cover-puncheon having shape facilitating their interaction during cutting leather sheet; said leather sheet is placed and pressed between matrix and cover-puncheon according to specified lines of cutting. Simultaneously a leather sheet is designed in accordance with a specified configuration. Also the matrix or cover-puncheon has one or several supplying channels ending in depressed open spaces designed for being covered with the same sheet which is pressed and cut between the matrix and the cover-puncheon; stability of material is ensured by plastic film laid on one or two sides of the sheet under pressure. The method for cutting and modelling of a leather sheet or other modelled materials consists in the following operations: laying a flat leather sheet between the matrix and the cover puncheon, and closing the cover-puncheon over the matrix for leather sheet cutting according to specified lines of cutting and modelling of the leather sheet to a specified configuration by means of corresponding modelling of opposite walls of the matrix and the cover-puncheon. Further plastic is introduced under pressure through the supplying channels located on the matrix and the cover-puncheon; the channels end in depressed open spaces instantly covered with a leather sheet pressed and cut between the matrix and the cover-puncheon. Upon that the cover-puncheon is opened and semi-finished product is extracted; the semi-finished product is produced out of a leather sheet after cutting and modelling; it is covered with a thin film formed by supply of material under pressure.

EFFECT: flat sheets of leather or other materials can be cut and modelled by method within same production cycle; same tool used for cutting and modelling of flat sheet of leather is applied for implementation of method.

5 cl, 7 dwg