DE6806842U - STACK TURNOVER WITH A DEVICE FOR VENTILATING A STACK OF PRINTED PAPER OR. DGL. - Google Patents

Description

Utility model registration

of the company

Rheinische paper processing machine factory, Lövenich

Pile turner with a device for ventilating a pile of printed paper or the like

The invention relates to a device for ventilating a stack of printed paper, cardboard or the like a pile turner is used, the pile carrier of which is in a horizontal position during ventilation. The stack is located between two vertically arranged press plates. To ventilate the stack, the Press plates moved apart slightly. The ventilation takes place through air nozzles, which are on the side .next to the vertical

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standing sheets of the stack are movable.

The stack is introduced in a known manner by that the stack carrier is placed vertically so that the stack resting on a pallet, for example, by means of a Forklift can be used. After the pressing plates have moved together, the stacking carrier is pivoted, until the stack is in a horizontal position in which the individual sheets are vertical.

The invention relates to a further development of a such ventilation system. What is new here is that at least one overlay on one side of the stack of sheets the entire width of the stack of extending convex Pressure body is arranged. It is advantageous to be on the opposite side of the stack in front of the other press plate a concave pressure body also extending over the entire width of the stack is provided. The convex and the concave pressure body can have an equal radius of curvature exhibit. Under certain circumstances, however, there is a better fanning out of the leaves if the radius of curvature of the concave pressure hull is larger than that of the convex one.

The pressure hulls are inserted when the pile turner is being loaded. With a vertical stacking carrier can the stack resting on a pallet on the

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a press plate can be set down. Then the Stack expediently placed the concave pressure plate before the pressure plates for clamping the stack against one another be driven. After turning the pile carrier over the horizontal central position into the possible second vertical position Position of the stack, the pallet is lifted from the stack and after the pressing plates have moved apart instead, the convex pressure hull is applied. When the press plates have moved against each other, they can pivot of the stack in the desired horizontal position. If on it the press plates are more or less far ventilated, the stack can be ventilated using the compressed air nozzles moving back and forth.

It is of particular importance that the individual in a standing position due to the inserted pressure body located sheets of the stack is each curved in the horizontal for itself. As a result of this deformation shows each individual sheet has a much greater stability than if it were flat. Using the said Convex and concave pressure hulls manage to ventilate stacks of much thinner paper than that was previously possible.

Instead of inserting loose, convex and concave pressure bodies, the pressure plates themselves can also be used accordingly

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be curved. When inserting the stack by means of a The pallet can first place the latter on the convex plate using suitable intermediate layers; that the stack does not topple over.

When the stack is pressed into the convex shape The pressing process alone results in a slight Displacement of the individual leaves against each other · This will allow for later ventilation through the compressed air nozzles facilitated and simplified.

An exemplary embodiment of the invention is shown in the drawing. Show it:

1 shows a pile turner with an inserted pile resting on a pallet in an end view;

FIG. 2 shows the concave pressure pad inserted in FIG. 1, viewed along the line II-II of FIG. 1;

FIG. 3 shows the position of the stack after a turn in the same 180 ° and after the insertion of the second convex pressure body according Entfer> - voltage of the pallet;

Fig. 4- a cross section along the line Γ7 - of Fig. 3;

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5 shows the stack in the ventilation position in a side view;
6 shows an associated view from above.

The pile turner 9 consists in a known manner of support columns 10 and a stack carrier 11 which is provided with two pressing plates 12 and 15. The insertion of the to be ventilated Stack 14 is effected in the vertical position of the stack carrier 11 sketched in FIG. 1 when the press plate 12 is in its horizontal lower position. The stack 14 rests on a pallet 22. The pallet 22 with the stack of paper. 14 can easily be inserted into the pile turner using a forklift will. After then the press plates 12 and 15 moved apart are, on the top of the stack 14 below the upper press plate 15 of the concave pressure body 25 inserted. The concave side 24 of the pressure body faces the stack 14, while the flat top 25 is directed upwards, that is to say against the press plate 15. Then the press plates 12 and 15 are in the in the usual way moved against each other until the stack 14 is clamped. The stack carrier 11 is then turned by 180 ° into the position according to FIG. 5 of the drawing. After then the press plates 12 and 15 moved apart are, the pallet 22 can be lifted and replaced by the convex pressure body 26. In side view

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As seen, the two pressure bodies 23 and 26 are then in the position sketched in FIG. 4 relative to one another and to the stack 14 or to the press plates.

Now the stack 14 still has to be brought into the horizontal position according to FIG. 5. For this purpose, the pressing plates 12 and 13 are first moved against one another and against the stack via the pressure bodies 23 and 26, so that the sheets of the stack are fixed during the turning process. At the same time, however, when the pressing plates Ί 2 and 13 are brought together, the stack 14 as a whole is also brought into the shape that can be seen in the top view according to FIG. 6. Each individual sheet is curved horizontally, which is known to increase its stability considerably.

Before venting, the plates 12 and 13 are moved apart. Due to the curved shape of the individual leaves, they can be relatively far apart, without the risk of the individual leaves collapsing.

Then the ventilation by means of the air nozzles 1? carried out, the one or more times at the end The side edges of the stack are moved back and forth in order to achieve the desired fanning out of the sheets.

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The nozzles 17 are expediently, as can be clearly seen in FIG. 6, tangential to the side parts of the to be fanned out Sheets of the stack 14 placed.

After the stack 14 has been adequately ventilated, the described turning operations of the stack carrier are carried out 11 effected in the reverse order, the pressure body 26 being removed and then again one after the other is replaced by the pallet 22 before, after a turn by 180 °, that is, in the position of the stack 14 accordingly Fig. 1 of the drawing also lifted the pressure body 23 and od the stack by means of a forklift. can be removed from the pile turner and fed to further processing.

The pressure bodies 26, 23 can also be made of other suitable material, such as hard plastic or the like. she can also be made of rubber or plastic with appropriate properties as a hollow body and be inflatable. Finally, there is also the option of firmly connecting the pressure bodies to the pressure plates.

Claims (9)

Protection claims 1. Pile turner with a device for ventilating a pile of printed paper or the like. The pile is clamped between two mutually movable press plates of the stack carrier and the ventilation is carried out by air nozzles, which are next to the stack that has been folded down horizontally against the stack that is standing on edge Sheets are directed, characterized in that at least on one side of the sheet stack (14) a convex pressure body (26) extending over the width of the stack is arranged. 2. Apparatus according to claim 1, characterized in that on C = T opposite side of the stack (14-) in front of the On the other pressing plate (13) a concave pressure body (25) extending over the width of the stack is arranged is. 3. Apparatus according to claim 1 and 2, characterized in that the convex and the concave pressure body (26,23) have the same radius of curvature. 680684 lbs 9 - ti 4. Device n * i breathing 1 όβ4 2, aatorea aet that the Krümmungsvaifti «· A ·· koak & vec fin * ekW5 * pere (23) greater let ale of dea convexes (26). 5>. Device according to Claims 1 to 4, characterized in that that the pressure body (26, 23) in perpendicular positions des Stapais (14) loosely inserted and through moving the eress plates (12, 13) together in are secured 6. Apparatus according to claim 1 to 5 »characterized in that the pressure body (26, 23) from corresponding There are wooden blocks or plastic moldings 7. Apparatus according to claim 1 to 5 »thereby gek« Bnzöieh ~ net that the pressure body (26, 23) od from inflatable hollow bodies made of rubber. Like. Are. 8. Apparatus according to claim 1 and 2, characterized in that the pressure body (26, 23) with the press plates are connected. 9. Device according to claims 1 to 8, characterized in that the blow nozzles (17) are approximately tangential to each other Side parts of the stack to be ventilated (14) are arranged.