SU26403A1 - Punching machine in the skin - Google Patents

Description

The invention relates to machines intended to penetrate the skin from the holes and consisting of a die and a punch, driven by an eccentric mechanism. In the proposed machine, for the automatic feeding of belts under the punch, a carriage with a table and a spring clip, an eccentric operated through a lever transmission, is used.

In FIG. 1 is a side view of the machine; FIG. 2 - front view of the carriage; FIG. 3 is a side view of the carriage with a partial cut; FIG. 4 - carriage view from above.

The proposed machine (Fig. 1) is an eccentric press with automatic feeding of belts for punch for punching holes in them. The indicated supply of belts for the punch is supposed to be carried out through the carriage 5 with the table 11 and the spring clip 8. The table 11 is provided with a cutout B which passes the matrix 1 (Fig. 1-4).

Perpendicular to the plane of the table 11, reinforce the rod 6, which serves as a guide for the clamping sleeve 7, which is under the influence of a helical spring 12..5.

Three eccentrics are mounted on the shaft 13 (Fig. 1) of the press: 14 for sliding the carriage 5, 15 for lifting the clamp 8 at the moment of shifting the carriage and 16 for lowering the stem with a punch, 10.

The clamp 8 (Fig. 4) consists of a sleeve 17, a bracket 18 and a plate 19 pressing the skin. An eyelet 20 is provided for entering the punches Yu when piercing the skin. Squares 21-24 serve as guides for the skin strip. Due to the presence of the eyelet 20, the carriage 5 can be moved to the side while the punch is still in the skin.

When the machine operates, the eccentric 16 acts on the press stem and the punch 10 punches a hole in the belt. Then the cam of the eccentric 14, acting on the smaller arm of the rocker arm 4, pivoting on the axle shaft 9 and pivotally connected with the clamp 17 of the presser 8, lifts the latter upwards against the action of the spring 12, after which the eccentric 15, acting on the appropriate lever mechanism, retracts the carriage 5 side in the direction of movement of the belt. At the same time, the beam 4 is released from the pressure of the eccentric 14, whereby the clamp 8 is lowered under 4th | By pressing the pin 12 down and the skin is clamped between the table 11 and the plate 18 (19). Then the eccentric 16 turns to a smaller radius position, the press spring 25 lifts its stem and the eccentric 15 returns the carriage 5 to its original position.

The subject matter of the invention. A machine for punching holes in the skin, consisting of a die and a punch, driven by an eccentric mechanism, characterized by the use of a wheel 5 with a table 11 and a spring clip 8, controlled through a lever gear by eccentrics 14, 1b and intended for intermittent feeding of belts for a punch ten.