DE1036794B - Press, especially for sheathing cables - Google Patents

Description

GERMAN

It is known that when pre-pressing blocks that are inserted into a transducer, the between the block and the wall of the receiver bore below the barrel-shaped bulge of the block trapped air with expelled. This thus gets into the pressed part, z. B. when sheathing cables in the form of air pockets in the cable sheath. To get out of this To remedy the resulting serious disadvantages, a wide variety of measures have already been proposed, which, however, prove to be either practically unusable or having other difficulties have proven connected. This also applies to the suggestion that the air to be displaced simply escape radially to the outside through the parting line between the abutting surfaces of the press head and transducer allow. Experience has shown that if there is sufficient play in the parting line, this is often not the case to count; In addition, the parting line would also become plastic and therefore plastic due to the high pressure the press material pushing after the air is clogged and must therefore be pressed before each new block only be cleaned again.

The invention is based on a press according to the last-mentioned proposal and aims at this in the simplest possible way so that they can be properly removed when pressing of a new block allows air to be displaced. According to the invention this is achieved in that the Abutment surfaces in the transducer and press head by means of grooves provided on them and corresponding ones Projections interlock and during the pressing s by a lifting device by a distance are lifted from each other, which is less than the height of the projections or depth of the grooves.

The grooves and projections in the abutment surfaces have two advantages, namely that they hold the parts to be lifted off from each other in positional relationship and divide the existing annular gap into sectors, i.e. also subdivide the pressed material that pushes the escaping air accordingly. After completion of the Anpreßvorgangs after the air has escaped, the abutting surfaces of the transducer and the press head can be tensioned against one another again by the lifting device, wherein the nachgedrängten in the annular gap sectors parts of Preßwerkstoffes be separated from the the baling chamber \ ^r erbliebenen material being pressed: then the actual pressing begins .

The transducer and press head can already be designed so that they can be lifted from one another and clamped against one another known for the purpose of being able to expose the molding tools in a simple manner.

In another known press to the L ^T m press,
especially for sheathing cables

Applicant:

Joint stock company for companies

the iron and steel industry,

Essen, Altendorf er Str. 103

Dipl.-Ing. Hans-Werner Schinke,

Rheinhausen-Friemersheim,
has been named as the inventor

sheaths of cables are provided in one of the joint surfaces between press head and transducer channels, which extend radially outward from an annular recess in this abutment surface and serve to determine by means of filler wires introduced from the outside whether the recess is filled with molding material and therefore requires cleaning.

In the drawing, as exemplary embodiments of the invention, the pick-up and press head of a standing one Lead or aluminum cable press illustrated.

Fig. 1 shows a vertical section,

2 shows a view of the lower end face of the transducer,

Fig. 3 is a section along the line III-III in Fig. 2 on a larger scale and

FIG. 4 shows a section along the line IV-IV in FIG. 3.

The pick-up 1 is provided with a bore 3 serving to receive the block 2 to be pressed, into which a press ram 4 is inserted after the block has been inserted. The transducer rests on the press head 5, through which a cable for sheathing with the press material in the horizontal direction, ζ. B. lead or aluminum is passed through. Radially extending grooves 6 are provided on the lower abutment surface of the transducer 1 and radially extending projections 7 are provided on the adjacent abutment surface of the press head 5, which laterally interlock with one another. The abutment surfaces 5 a and 5 b of the press head 5 are inclined from the inside outwards, while the abutment surfaces la and 1 b of the transducer 1 extend horizontally. The transducer is mounted in a frame 8, which is mechanically, pneumatically, hydraulically or electrically

S09 598'219

operated lifting device 9 can be raised and lowered.

In Fig. 1, the block 2 is pressed so far that it has assumed a barrel shape in which the Block rests firmly against the wall of the bore 3 in its middle height. While those above the middle block height located air between the press punch head 4a and the wall of the bore can pass upwards, the air trapped below the middle block height escapes as the block is pressed further through the parts formed between parts 1 and 5, after outside wedge-shaped widening sectors 10 and 11 after the pickup 1 by the lifting devices 9 was raised slightly. As soon as the pressed material follows the escaping air and entering sectors 10 and 11, the pick-up 1 is lowered by the lifting devices 9, until the inner edges of parts 1 and 5 meet at 12 (Fig. 3), whereby the molding material separated and the connection with the sectors 10 and 11 is cut off. On it can the actual pressing takes place.

Claims (1)

PATENT CLAIM: Press, especially for sheathing cables, with a press head used for deformation and block pick-up, between the abutment surfaces of which the when pressing a new block displacing air escapes radially outwards, characterized in that the impact surfaces of Pick-up (1) and press head (5) by means of grooves (6) and corresponding ones provided on them Projections (7) interlock and during the pressing * by a lifting device (9) a distance can be lifted from one another which is less than the height of the projections or depth the grooves is. Considered publications:
German patents Xr. 705,741, 882,689;
Swiss Patent No. 234 399. 1 sheet of drawings © 809 598/219 8.