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The stand of the press serves as the power input when pressing. All bearing elements of the stand are made of sectional steel and are screwed home.
Figure 1 - Spindle press
1 press stand, 2 pressure spindle, 3 cross beam, 4 clamp lever, 5 pressing plate, 6 pressing table, 7 spindle controlling unit
The total pressing surface of the machine is devided into three separate pressing tables with their respective pressing plates and spindles. Depending on the size of the piece of work one, two or three spindles are applied. In order to provide the press easier with material the pressing tables can be pulled out on sliding rollers out of the press stand.
To produce the forced feed the press spindle is used. It ends with the narrow thread in the spindle screw. The female screw is made of grey cast iron and is screwed beneeth the cross beams of the press stand. The lower end of the spindle sits in the pressure shoe with a pivot.
The pressure distribution ensues through the spindle pivot, the pressure plate, two crossed grills made of sectional steel on to the pressing plate and then on to the piece of work.
The pressing plate is made of wood and its underface is slightly domed on all sides. The forced feed should first operate in the centre of the piece of work in order to press out excess glue at the edges.
The different ructions - open the presses - or - close the presses - are adjusted by means of a tongue on the spindle controller (s. Figure 2 and 3).
To tighten the press spindle a 1500 mm long lever is used. The tightening is carried out depending on the size of the occupied face of the table by one or two people (with man power). The lever should not be prolonged by using a tube. Otherwise the pressure power achieved in this way can damage the mechanically loaded parts of the press!
Figure 2 - Press (cut-away
model)
1 cross beam, 2 spindle screw, 3 pressure spindle, 4 lever guide, 5 clamp lever, 6 grill made of sectional steel, 7 pressing plate, 8 pressing table, 9 press stand
Figure 3 - Spindle controlling
unit
1 pressure spindle, 2 notch pawl, 3 / close the press; open the press, 4 notch wheel, 5 pressure bearing, 6 grease chamber, 7 spindle mortise tenon
The press is provided with a set of intermediate layers made of 2 mm to 3 mm aluminium. They are placed between the pressing table and the piece of work and between the piece of work and the pressing plate, as well as between separate pieces of work. Maintenance and service of the press is easy. It includes a regular lubrication of the spindle and the spindle bearing as well as to keep the pressing surfaces and the sheets clean.
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