Process and equipment used to cut and model sheets of leather or other modellable materials
OwnerGiordano Beruschiinventor
Life of this patent
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Abstract
A process used to cut and model sheets of leather or other modellable materials, according to which cutting and modeling are carried out by means of a die and a lid-punch that cooperate to cut a leather sheet positioned and tightened between the die and the lid-punch according to predefined cutting lines and at the same time model the sheet in a stable way by a plastic film injected on one of the two sides of the sheet.
Claims3
Equipment used to cut and model sheets of leather or other modellable material, wherein said equipment comprises a die (1) and a lid-punch (3) shaped in such a way that they cooperate to cut a leather sheet (F) positioned and tightened between the die (1) and the lid-punch (3) according to pre-defined cutting lines, and at the same time pre-model the leather sheet (F) according to a pre-defined shape;
- the die (1) being provided with one or more injection channels (4) used to inject plastic material (M), said injection channels ending in lowered open spaces (3c) on an internal side of the lid-punch (3), said open spaces (3c) being designed to be covered by the same leather sheet (F) that is tightened and cut between the die (1) and the lid-punch (3).
Process used to cut and model sheets of leather or other modellable materials, comprising the following operations:
- positioning of a flat leather sheet (F) between a die (1) and a lid-punch (3);
- closing of the lid-punch (3) above the die (1) to cut the sheet (F) according to pre-defined cutting lines and modelling the sheet (F) according to a pre-defined shape, by means of suitable modeling of the opposite internal walls of the die (1) and lid-punch (3);
- injecting plastic material (M) through injection channels positioned on the die (1) or lid-punch (3) and ending in lowered open spaces that are momentarily covered by the sheet (F) tightened and cut between the die (1) and the lid-punch (3);
- opening of lid-punch (3);
- extracting the semi-finished product (SL) obtained from the sheet (F) after cutting and modeling, coated with a thin film (5) formed by the infection material (M).
Dependencies are inferred from the claim text.