DE1759035A1 - Press for compacting pourable masses - Google Patents

Description

Von Roll AG ^ Oerlafingan / Schueia

Press for compacting pourable masses

The invention relates to a press for compacting pourable masses, in particular a press for the production of block electrodes. . ,

In the known presses for this purpose, which consist of a fixed and a movable punch as well as a movable one Mold exist, the pressed material is in a by Sfceupal and the mold cavity is filled. If the lower punch is movable, this punch and the mold move upwards against the solid punch and compress the Pr <::; {· well. If, on the other hand, the upper punch is required, then dur füv die

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The cavity serving to accommodate the pressed material is formed by the lower fosten.stempel and the mold .. Drive during the pressing stroke the column and the movable ram go down and compress a the pressed material.

For economic reasons, endeavors scan to produce electrodes with gleiehmässiger possible density ₉ make Depending large, the electrodes are, the more check the passing the material to be pressed inner Reibungswiüerstände and Reibungokräfte between Kokilleninnenwandung and pressed material noticeable and affect the quality of the electrode unfavorably V / ice.

In order to improve the pressing process, a press has become known in which the mold movement is regulated in a certain legal relationship to the punch movement. This achieves a reduction of the frictional forces realized by a movement corresponding to a taking place from two sides uniform penetration of two movable punches with a fixed mold ^.

The improvement in electrode quality that can be achieved with diaseia pressing processes but does not yet meet all requirements.

The bulk material * which consists of a granulate with a binder »becomes mostly at elevated temperature in bulk in the press

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may be cavity-filled and forms one föaterialanhäiifung in Hohlraiircmitte that "beroifcs cause by-one r-ngleiche Elektrodenoiuuto. Next are present in is Sohüttung. adversely with air and gases gefüllten.Hohlräume, uL · älGKO at the pressure of not fully Therefore, when the pressed electrode is ejected, heats can arise on its surface, which result from the residual gases under high pressure and have a negligible effect on the service life . o-dsr C'og.ar the use of de: ·: Elektrcdsn saiSfi

These parts of the compartment are only remedied by the eri'inä.un £ ß2 <ts! £ s £, e presto « It liaiinseichnetdadiireh.- dose- in at least one Stamp c-in Vibriergsrät eingsbßut ist.- d & .s for Erseugung from VibratiorislDswcgungeü dor Stesipslplatte coupled with this 3.Bt.

'BriinaungsgeDasGeii Presse .clarg'! Stsllt4 With I is rahRisn bei-> cic. * 'jEi? t »2 is dor olkerc

■ upper'joch ~ j is attached * Läv untsre Steorsl k, im unteetl-aJjs? LAinoorkolbi5n ~ aiispibili;? T7 ^ 4äi; ft in the KoIl, m bore rtie \; ivu ~ ilhiv ^ Tgffi ^ ü ^ & lQt ^ ng 6 vcn a not shownGl3 th Kyoroaggreg & t ba ^^ - fschlagtTT

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The mold 7 has two flung pistons, which are in the piston bores 9 and over the connecting cable en 10 applied »" ■ "! ■ ♦

A cavity 11 is recessed in the interior of the lower movable punch 4. In these there is one that is not described in more detail Vibrating apparatus 12 housed, which has an energy supply line 12 'and via a connecting member IJ with the stamp plate 14 is coupled. The stamp plate 14 is supported on springs 15 in such a way that in the unloaded state a gap is created between the stamp and the stamp plate.

The way the Vibratlonseinrichtuiig in the stamp is the following: In the position of the movable stamp and the column shown in the figure, the is shown schematically at ~ interpreted charging carriage 16 driven over the cavity and emptied. With the start of filling, the stamp plate 14 set in a shaking motion by the vibrator 12. Daa This compacts bulk material and distributes it evenly. At the same time, the cavities are reduced in size or completely filled by the compression, which in the bulk material enclosed gas volumes only a small proportion and can no longer cause cracks in the electrodes.

As soon as the punch and the die is raised so that the upper punch u s bulk touched, the Vibriervorgang is

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finished and the actual pressing process begins, whereby the Stamp plate: - under - overcoming the spring forces on the Stamp is pressed. After & termination of the pressing will the electrode is ejected ^, the press is again in the Lag® shown in the figure and the filling, vibrating and pressing operation is repeated.

The vibrating device can also be used in other presses as shown in the figure, so for example in known designs of presses for compacting Bulk goods, in which the movable punch in the upper yoke is arranged. But even with the version with two movable stamps, the Vibriereinrichtimg applicable. The. Mold either fixed or movable be with and without regulated speed. In all of these Press arrangements will be & ne Vibriereinriohtung in at least built into a stamp. But the mold can also be used for improvement of the electrodes are vibrated, which is not only applied alone but also advantageous with the vibration of the Stamp plate can be coordinated.

The vibrating device can be electric, hydraulic or pneumatic be. It can be coupled to the stamp plate or else be supported on the bottom of the punch cavity. The supply line for the energy, of course, the changes in position of the stamp and the vibrating device must also take part can.

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The invention makes it possible to produce electrodes, the density of which is very smooth over the entire surface, which are compact and do not tend to form cracks » This makes the manufacture of scrap electrodes to a large extent switched off and also increased the service life, The profitability is increased by this increase in quality as well as by the fact that the pre-compaction By vibrating the bulk material, the presooperation can be shorter, which allows an increase in the number of cycles.

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Claims (1)

1753035 P ate η ta η s ρ ι ¹ ii ο Ii e Press mm compacting voxi schUfc-tbareiv cash registers, especially en. »·} Manufacture of electrodes, which 2 ^ ai Bivempasla von äeKii a /jswegbar.- is, unö a mold aiir Fronsimg fies xiir ■ the creation of vations. mx _: - ~ & Q &: -% mv a "Stempsl © iiigebaufc iist ^ tie sit the StGmpelpliä'te is coupled. 2.:? I- «5i'Be according to claim l _t thereby geicsnnsaiciinBtv öass ai ^ - sllfcriicxi an aursieugiaig of vibrations suitable one is built into 'the mold' * March 12, 1968
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