SU35752A1 - Leather belts forming machine for bags - Google Patents

Description

Arrangements are known for forming furs to bags by crimping strips of leather with a matrix on a puncheon with a grooved surface and using steam heating of the punches in order to dry the molded articles.

In the proposed machine, the matrix is made vertically, and under the matrix, on the shaft, periodically rotary punches are mounted in a chair-like manner, alternately suitable for the matrix and heated by an electric current.

FIG. 1-3 of the drawings, the machine is shown in three main projections, i.e., from the facade, from the side and in the plan; in fig. 4 and 5 are views of the punches and the matrix, partially cut from the front and from the side, and in FIG. b-punson cut along the line AVna of fig. 5 with the image of tight skin.

The machine has a frame /, on the front plane of which, in parallel 2, slider 3 walks with a U-shaped matrix 4, driven by a connecting rod 5 of a crank gear 6 coupled to gear 7, which sits on the same shaft the turn is set in motion from gear 9, seated on the same shaft as the JO driving pulleys. The common drive can be carried out with the help of an individual electric motor. On one shaft with gear 6 is placed an asterisk / 7, which, by means of a chain transmission, drives the shaft / 2 with a disk / 5, and the pulley J4 of which periodically turns the washer / J, which has the shape of a Maltese cross, on V4 turns J6 shaft with a cross-punch punches J7. Punsons 77, located crosswise, in the present case in the amount of four pieces, have a side surface in the form of a fur of a harmonica, moreover as a matrix 4, like this: And the punches can be made of typesetting, with two, three and four folds of fur, from separate sections - folds assembled and fixed on the cross and slider.

Electric heaters / A are placed in the inner cavity of the punches, the wire ends of which are connected to contact rings 9 (Fig. 5), pads mounted on the cross and rotating together with the latter. The current is supplied to the heaters by means of a plug 20 and fixed contacts 2 isolated from the machine metal (Fig. 4). On each side of the punches mounted skin pressing the cam rollers 22.

Work on this machine is performed as follows. A worker, placed near the left pad of the machine, takes a cut and wet skin preparation, wraps it in size

-punson, Clamping free edges to the ram by rollers 22, and putting the machine into motion. When the punch is vertically, the matrix 4 is lowered onto it and forms the skin on the punch into fur, then the matrix rises, comes off the punch, finger 14 enters the clutch of the Maltese cross 75 and turns the cross of the punches on the V turn, thus bringing it under Matrix new, dressed skin, punson. To fix the stop of the cross, after each move, a spring-loaded dog 25 is used, which is inserted into the corresponding recesses of the cross. When the punch .77 with the molded fur makes a full turn and comes back to the worker’s location, he, according to the author of the device, takes on (using heaters 18, he will have time to dry the fur, and the worker, after clearing the MOU 22, removes the finished fur from the punch.

Work on the formation of furs on this machine goes on continuously. The machine mechanism must be driven in such a way that the worker can remove the finished dried fur from the punch that approaches it and pull the new blank onto it while the crosspiece remains in place.

The subject matter of the invention.

Claims (2)

1. A machine for molding leather bellows to bags, characterized by the use of a vertically movable matrix - and periodically pivoting punches / 7 with a corrugated surface installed under it, crosswise fastened to the shaft 16 and intended to form strips of leather superimposed on the punches. 2. In the machine tool according to claim 1, the use of electric heaters 18 prisoners in punches 17 and employees for drying molded products. E to the author's certificate of I. Ye. Zemlnke 5L Figfig 5 yy