DE544453C - Device for producing box parts with a pressed neck - Google Patents

Description

Device for the production of box parts with a pressed neck The invention relates to a device for producing box parts with a pressed-on neck, in which a blank is first formed into a box part and the neck part is pressed on by side jaws, characterized in that both the die part and the jaws pressing the neck part form a closed one Form frame, and that after the molding and pressing of the neck parts, the upper tool goes down a little further, so that the corner edges of the box part both as well as the neck parts can be warped under pressure.

There are devices known to box parts with a pressed neck to manufacture. However, these devices only press the neck parts after they have been completed Shapes of the box part, d. H. when the upper part is furthest into the die part has penetrated. The advantage of the subject matter of the invention is that at the molding -and when pressing the neck parts the cardboard material from the outside on all sides is included, and that thereupon the workpiece by further penetration of the upper tool is moved a little downwards into the die part, creating a solid Compression (warping, Vergautschen) the corner edges is achieved.

In the drawing, the subject matter of the invention is shown, for example, namely Fig. i shows a vertical section through the tool after insertion of the blank, Fig. 2 the same after pressing the neck parts,.

Fig. 3 the same after the upper part has finished descending, Fig. ¢ the same when pushing out the box part that has just been completed, for example through a subsequent cut, Fig. 5 a section A-B, Fig. 6 a section CD.

A blank i is placed between guides 2, 3 on the die part (Lower tool) ¢ pushed on. This is followed by the upper tool 5, its jaws 6 are pressed by the cone 7 while stretching the spring 8 outwards, downwards and forms the blank i into the box part 9 by pressing the bomb plate downwards i o. The upper tool part 5 only goes so far downwards until the box part is perfectly formed. Then the jaws i i press the neck part from the outside the side walls of the box part 9 and remain in their foremost position stand. The upper part 5 now goes downwards until the bomb plate i o on the The bottom of the lower tool 4. is seated. During this downward movement, the sculpted Side walls and pressed neck parts again warped under pressure, whereby a fixed connection of the corner edges occurs. - Then the jaws i i go again return. Likewise, the cone 7 releases the jaws 6 of the upper tool part, which through the train of the spring 8 go inside. This allows the top part out of the box part 9 slide out upwards. The box part 9 is now through the bomb plate io from the matrix part q. postponed and by appropriate means, for example by the following workpiece i ', removed from the tool.

It should be noted that the division of the jaws 6 of the upper part either can be done diagonally or on the centers of the side walls. It can from - r also, As shown in Fig. 6, a division into more than four, for example into eight parts are made. Likewise, the Bakken i i can be arranged four times; she but can also, as can be seen in Fig.5, to tighten the closing of the To achieve corners, be designed eightfold.

Claims (1)

Claim: Device for the production of box parts with a pressed-on neck, characterized in that the die part of the tool as well as the jaws which press the neck parts against the shaped side walls form a closed frame, and that the upper tool after the box part has been shaped and the Neck parts penetrate a little further into the die part, as a result of which the corner edges of the box part as well as the neck parts are warped.