Sequential numbering of pieces obtained by injection
AssigneeComercial De Utiles Y Moldes, S.A.
InventorAlberto Navarra Pruna
Life of this patent
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Abstract
A numbering apparatus incorporates a push rod which is pushed mechanically by an ejector plate or other mechanism of an injection mold in each injection process. The push rod moves, in a linear direction, a link attached to a central cylinder which turns inside wheels having, on their outer face, marking digits. The wheels have an inner toothing, on which pressure is exerted by a comb, made up of comb teeth, that protrude externally from the central cylinder in order to change the position of the wheel in the forward direction of the central cylinder. The digit displayed, while also incorporating magnets, matching up with the outer face of the wheel which assist in securing the position of the comb, thereby preventing the wheel from turning while the cylinder is sliding back.
Claims7
An apparatus configured for sequentially numbering pieces produced by injection, comprising:
- a push rod configured to be pushed mechanically by an ejection plate or other mechanical mechanism of an injection mold in each process of injection of a piece;
- a series of parallel wheels;
- a series of digits, legends, figures or symbols, situated on a perimeter of the series of parallel wheels that correspond to units, tens and other powers of ten or other base unit systems for numerically marking a produced piece;
- a link configured to slide in a linear direction under action of the push rod;
- a central cylinder that is attached to the link and is configured to turn inside the wheels provided with inner toothing defined by recesses and projections;
- a comb configured to exert pressure on the projections formed of the teeth, the comb passing through and protruding externally from an opening in the central cylinder in order to change a position of at least one of the wheels in a direction of forward movement of the central cylinder and therefore of a digit displayed;
- and
- magnets matching up with the outer face of the wheel configured to assist in securing a position of the comb, thereby preventing a rotation of the at least one of the wheels while the central cylinder slides back.
Dependencies are inferred from the claim text.