DE3041994A1 - METHOD FOR DRAINING A LOT OF LOT - Google Patents

Abstract

1. Method for dewatering of a lot of laundry (8) in a device having a movable press pin (1) being supported on a pressure tank (3) by means of a stop (6) and pushing said pressure tank over a fixed press table (2) vertically to its support plane, having an elastic support (4) to be loaded by a pressure medium without a pressure-medium source, characterized by that a) in a first pressing sequence, the press pin (1) enters into the pressure tank (3) held in its original position by means of spring action up to the stop (6) arranged in the upper range of the press pin (1), whereupon b) in a second pressing sequence, the press pin (1) pushes the pressure tank (3) being open at its bottom over the press table (2) by means of the stop (6).

Description

Senkingwerk GmbH KG
TP / Be / Gö / PG 4Ol8

Method for dewatering a batch of laundry

The invention relates to a method for dewatering a batch of laundry in a pressure vessel by means of a press ram.

It is known to dewater items of laundry with a press ram which is located in a perforated frame Pressing laundry together like a piston press. For this purpose, the press ram moves into the one which is also perforated Underlay on a pressure-resistant frame. After the drainage process, the frame is removed and the Pressed items of laundry conveyed to the drying machine. Because of the uneven distribution of the laundry in the frame an even drainage of all laundry items is not guaranteed with such presses.

It has therefore already been proposed that the pressing process be carried out by means of a membrane which can be acted upon by a pressure medium to be carried out (US Pat. No. 1,985,485). The membrane is the same the different distribution of laundry and thus allows a more even drainage. The disadvantage is that the membrane can be destroyed by sharp objects, resulting in downtime and costly replacement of the membrane can lead.

The object of the invention is to bring about a uniform dewatering of the batch of laundry without one with a sensitive membrane that can be stretched by a pressure medium must, but can proceed according to the principle of a piston press. With the characteristic specified in the claim Features this task is solved.

OB ₁ GlNAl- M3PECTED

The two-stage pressing process according to the invention has the advantage that initially in the pre-pressing phase by means of the press ram a certain equalization is effected and by the elastic support on the pressing surface of the ram pressure compensation is possible. During the second phase, the Press table practically as a piston moving into the pressure vessel d. H. the batch of laundry is sequentially by two Sides pressed together. The maximum movement that an item of laundry must perform during the pressing process and the possible Overloading is greatly reduced. This trick allows you to work on the principle of the piston press without fear of laundry damage.

In the drawing, the mode of operation is based on an exemplary embodiment and the basic structure of such a press is shown.

FIG. 1 shows the press in section and FIG. 2 shows the process sequence schematically

The press table 2 is arranged below the upper press ram 1, which forms the bottom of the pressure vessel 3 held in its initial position under spring pressure. The pressing surface of the press punch 1 is provided with an elastic pad 4 in the form of a liquid-filled cushion. An attack 6 on the press ram 1 engages after a certain downward movement on a corresponding counterpart 7 of the pressure vessel 3 and takes this on during the further downward movement with. The workflow is from the flow chart according to FIG. 2 to recognize.

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2a) A batch of laundry 8 is made from the washing machine, not shown filled into the pressure vessel 3. The washing water runs through the perforation of the pressure vessel and / or Press table 2 from.

2b) The ram 1 moves from above into the pressure vessel to stop 6. The pressure vessel, which is under spring pressure, retains its position while the batch of laundry is being loaded is compressed by a certain amount. The batch of laundry can be spread out somewhat in the pressure vessel and possible pressure differences are compensated for by the cushion 4. During this process, the overhead Laundry moved down by the Vorpeßhub. Further movement in this direction could lead to serial loads Guide the cushion 4 on the pressure vessel wall.

2c)]) he stop 6 takes on the further downward movement of the Press plunger 1 now the pressure vessel 3 on the counterpart 7 with, so that the fixed press table 2 slides relatively from below into the pressure vessel 3. Included the items of laundry lying below, so far not displaced in their position, are relatively upwards in the direction of the press ram 1 moves and the batch of laundry is drained with the least amount of stress.

2d) The pressure vessel 3 is pushed upwards over the fixed press ram 1, d. H. the dehydrated batch of laundry ejected after the stop 6 has been pivoted.

2e) After the press ram 1 has been raised, the batch of laundry is removed from the press by means of an ejector 5 and subsequently

2f) Bring the press to the starting position.

ORIGINAL INSPECTED

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Claims (4)

Senkingwerk GmbH KG; ο η / 1 Q Q TP / Be / Gö / PG 4018 J U 4 I H b claims 1) Method of dewatering a batch of laundry in one Pressure vessel by means of a press ram, characterized in that that a) in a first step of the with an elastic Support (4) provided press stamp (1) in the pressure vessel (3) retracts to a stop, whereupon b) in a »wide press stage · the press ram (1) den pressure vessel (3) open at the bottom by means of its stop (6) over a fixed press table (2) pushes. 2) Device for carrying out the method according to arrangement 1, characterized in that the press punch (1) with an elastic pad (4) is provided. 3) Device according to claim 2, characterized in that the elastic support (4) of the press ram (1) liquid filled pillow 1st. 4) Device for performing the method according to claim 1, characterized in that the pressure vessel (3) is held in its initial position under spring pressure.