DE8109713U1 - DEVICE FOR LAYING VARIOUS BOWS - Google Patents

Description

sTt ¹ H. of »ö« 4ööö ö

Telephone: (0311) 683346 fefe <: 08586013 cöpd

PAfENFANWALTE.
Dipping: W. GÖHÄUS2 'ÖipUrig. R. KNAUF ■ ÖipWng. HB GÖHÄÜS2 'DiplWng. Ö. H. WERFER

- 5th

Anrn * i VITS-Maschinenbäü GittbH / Winkelswe ^ 172 / 4Ö18 Langenfeld

Device for layers of different types of sheets

Laminates are manufactured in such a way that several sheets of paper or other impregnated with synthetic resin Bahnmateriaij possibly with outside, different Arches to be pressed under heat. In order to have several layers of this kind at the same time in a press process In order to be able to produce laminates, it is common to insert sheets of release paper between the layers.

The construction of such layers in preparation for the pressing to form laminates has been carried out in practice up to now largely by hand. This starts with the separation of the sheets of a stack at one or two stack corners. Then the layers separated at the corners are peeled off from the stack and fed to the tray.

The purpose of the "invention is to make this manual work by: mäßchinelle To replace work.

ι ·· '■■ * /

The invention accordingly relates to a device for layering of in particular different types of sheets, consisting of two storage stations arranged one behind the other for the two types of sheets, namely cover sheets and layered sheets, a first means of transport with which the cover sheets individually from the first supply station (cover sheet station) to second supply station (layer sheet station) in one Level can be conveyed that are above the top of the sta- > - ■ _ pels, assigned to a shift arch station,

having a knife with an adjoining guide surface Separating member which is movable against the end face of the stack in such a way that it is inclined in particular with its Cut penetrates into the stack and with the guide surface the sheet or sheets that are gripped underneath approximately up to the conveyor level of the sheets lifts from the cover sheet station, a second transport means, the clamping jaws for the common detection of the cover sheet brought up by the first transport means and the lifted one or more Has layer sheets at the front edge and with which the gripped sheets up to one behind the layer sheet station arranged tray are conveyable. f

In a known device of this type (DE-OS

2 900 375) is the separating element on the in Transportrich f

tion rear side of the stack of sheets of the second forward * - |

council station arranged. Its guide surface is plow- f

similar, so that the sheets separated from the stack }

turns by 180 °. The bows turned in this way are attached to the;

Edge areas together with one of the first Vor · »sj

council station brought up by means of a conveyor belt | Sheets of franking paper captured and via the second Varratsstahinweg to a shelf

! t ί ^! · Ιί ι "ί
i '' * ί ί

-T-

Such a device makes the otherwise laborious manual work there is no need to lift and peel a layer of usually large-format sheets from the stack. However, manual work has only been partially replaced by machine work. First of all, it is still necessary to separate and count the bows by hand in order to to be able to hold up against raised plow-like separating element. This manual work requires a lot of skill and is not without danger, especially if the sheet width is smaller than the working width of the device is. In this case, the operator is required to be more or less deep reaches into the machine in order to be able to grasp the corners of the sheets. This endangers the clockwise advancing Separator the operator.

Furthermore, in the known device, the long transport path of the sheet layer is from the rear edge of the sheet stack of the layered sheet station to the front edge of the shelf, while turning the sheet layer at the same time 180 ° over its entire length, not cheap. The arc layer shifts slightly in itself, see above that it requires realignment of the layer sheets at the leading edge. Finally, when you go back " lead the plow-like Trennörgans over the rear Corners of the pile where the operator pens the Should separate sheets, the operator is endangered.

The invention is based on the object of creating a device of the type mentioned at the outset, the ohiva Manual work and with the least possible load on the sheet material enables the build-up of layers.

According to the invention, this object is achieved in that the separating element is located on the front side in the conveying direction the layer sheet station is arranged and that the first transport means over the layer sheet side extend to the front side and are designed such that they only apply to the upper sides the arches act.

As such means of transport, the per se known, conveying suspension bars with underside arranged, blown air-fed nozzles can be used.

By using this special, first means of transport, the cover arches individually to the front of the sheet stack of the layered sheet station, the prerequisite is created that the sheets of the layered sheet station, without having to be turned, can be recorded and conveyed for storage.

In order to give the sheets conveyed individually through the webbing strips a defined conveying speed, is. provided that the suspension bars upstream funding in the form of a driven roller or a driven pair of rollers are arranged upstream, the or that the individual sheets are essentially slip-free promotes. The role or the pair of roles give the

I I

II. IiAl i Mi "

t »· It

ItII I I

ff

arcs coming under the influence of the floating bars have a defined conveying speed.

It goes without saying that the input of the individual sheets in the conveyor line, the conveyor speed of the Role or pair of rollers and the actuation of the separating device and the clamping jaws, taking into account of the conveyor lines must be phase-synchronized.

So that the sheet conveyed by the suspension bars with a defined one until it is gripped by the clamping jaws Conveying speed is promoted, provides a further embodiment of the invention that the distance between the or the conveyor rollers and the jaws of the second transport device is smaller than the length of the is to be conveyed sheets from the first supply station.

Neither with the known device nor with the device according to the invention described so far is it possible to separate a certain number of sheets for a layer from the stack. Since this requirement exists, however, the invention provides in a further embodiment that a support that can be inserted into the stack of sheets from the side with a rising guide surface for swiveling up the sheets above the support and a retainer that can be moved over the stack of sheets are provided laterally next to the stack of sheets , which forms with the support a clamp for the arches lifted from the support, that a lowerable from above on the raised arches and displaceable in the direction of the Gegenhaiters gripping is provided for the respective upper sheet, that from the side a finger between the counterholder and The gripper can be fed forward transversely to the direction of the gripper and that a forward-controllable retaining element is provided above the counterholder and the gripper for sheets that the finger flips through the height of the sheet *

olÜ'-iiM: ·;

ι * I • 5 * i < < ! ( I ti 1 rf ^H * • I 1 ti * it » ¹ It '

- 1ö ^m

With a "sölöhen / an AUf leaves station forming Preliminary Weifden ziUnäähst the EOcJeH of an · indefinite Number raised i Voii these raised arch will be a = zein arches peeled open and together in definite Number recorded <Under these recorded arches a certain number of times the treririor organ is pushed in with its knife. In this way, the jaws of the separating goose layers with a certain number of sheets recorded. There is no need for any kind of manual work »

For leafing through the individual sheets, proven advantageous / if the ridge of the rising guide surface the edition in the area of Ses Bogenstapeis on one front corner. In such a case, the gripper can bend back the protruding sheets when lowering. The subsequent shifting of the upper arch on the arch below is then unproblematic .

The retractable support can on the side opposite the guide surface side of the comb have a falling edge of the stack to the support surface of * where '* & particular advantage / when the support in the region of the sloping support surface is resilient. This support surface gives the sheets bent back by the gripper a defined position and a defined contact pressure.

The counter-holder is preferably yielding in height stored. Such a counter-holder is generated when it is pushed in the edition essentially one of the number of the raised Arches independent clamping force. The counterholder

,. j, tit **

May also be a mistake for the height of the Bögeristäpels * serve * Da deif bow pile During the Äfenänmiä the bow has to turn higher / so that the top side essentially = The epee holder must stay at the same height Coupled with an Öeber soaps / which is attached to a lifting device a switch-off signal for the stack of sheets of the Öchiöhtbögenstätiöft gives / as soon as the top of the stack leads the bin <

So that the gripper moves in the direction of the Gegenhäiters safely takes / should take the upper arch with him the contact area of the gripper has such a friction / worth compared to the sheet material / that the

Move as little slip as possible between grippers and bow results * Alternatively, the gripper can also be designed as a suction cup. The suction cup has the advantage that he needs practically no counter pressure to grasp the upper arch. In addition, he can forcibly during before moving the arch, pivot it to facilitate tunneling. In such a Case only needs to be provided a pivot mechanism with which the movement in the direction of the counter holder the pivoting movement can be superimposed. About releasing the upper sheet from the sheet below To make it easier, the front side of the teat has a protruding rib and in the front side there is one Rib crossing groove arranged. The resulting three levels ensure that the Bögeri * is in the area is bent in opposite directions, like this that there are ventilation channels between this arch and the form underlying arch.

lit * *

4 ί W ₁ * 'J

• 1 ·-

In mammals, the face would normally be surrounded by a "diet made of elastic material" / that the ¹ seal found is formed by a ring lid / which sits exchangeably in an outer ring groove of the mammal *

It is not necessary / for the formation of a son. With a certain number of arches the arches on the whole Length of one page to open * It is enough / if the peeling is in a limited place, preferably at one corner of the stack. In such a case, the fall line of the rising guide surface should be inclined run to the edges of the stack. It is optimal if the line of fall is parallel to the bisector of the Corner of the stack forming edges runs *

In the following the invention is based on an exemplary embodiment Illustrative drawing explained in more detail «Show in detail

Fig. 1 shows a device for layering sheets, consisting of several, in the transport direction successively arranged stations, namely a storage station for Trennbögerif a storage station for cut sheets and a tray / in side sewing *

FIG. 2 shows the device according to FIG. 1 in horizontal section according to the line I - I of Fig. Ί,

- 13 "

Fig. 3-7 a part of the Vörriähtüiig according to =.

in side view during veräähiedeneif Phases in Laying ^

Fig. 8 shows a laterally in the area of the front edge

of the stack of layer sheet stätiön arranged Device for leafing out and holding up a sheet of archery in supervision,

Fig. 9 = 18 the device according to FIG. 8 while on = changing phases when leafing open

the layer arcs,

19 and 20 show the device according to FIG. 8 in a somewhat

modified form in FIGS. 13 and 14 corresponding phases,

Fig * 21 a suction cup designed as a gripper seen from the front side,

22 shows the suction cup according to FIG. 21 in an axial section along the line I - I in FIG. 21,

23 shows the suction device according to FIG. 21 in an axial section along the line II-II in FIGS

24 shows a part of the device according to FIG. 1 with a gripper designed as a suction device, with part of the articulation and swivel mechanism.

• t J> *

- 14 -

The device shown in FIGS. 1 and 2 has two storage stations arranged one behind the other in the direction of transport, namely a cover sheet station 1 and a layer sheet station 2 and an adjoining one Tray 3, to which 1.2 sheets are transported from the two supply stations to form layers.

The cover sheet station 1 consists of a roll 4 with j | web-shaped paper 5. The cover paper, which is also separating. |

paper is fed by a pair of take-up rollers 6,7 |

fed to a cross cutter 8, 9, the individual cover \

separates arches. The individual cover sheets are made by J,

a pair of conveyor rollers 10, 11, which is usually something |

faster than the take-off roller pair 6, 7 runs, further '*

in the area of the second supply station 2 for shift!

bows transported. |

The layer sheet station 2 consists of a stack 12 | uniform, rectangular sheet arcs, the is carried by a table 13 with lifting elements 14, 15, Several, floating bars arranged parallel to one another, that is, carriers with blown air-fed elements arranged on the underside Nozzles. The blown air emerging from the nozzles causes the ones supplied by the cover sheet station 1 Bows are conveyed in a floating manner. The conveying speed of these arches in the area of the webbing strips 16 is determined by the conveying speed of the conveyor rollers 10, 11, which act retentively on these arches.

ι '' ,, 'u' j iii * #. ^!

Γ '

- 15 -

On the front side of the sheet stack 12 in the transport direction there is a shovel-shaped separating member 17 from a blunt knife 18, with an inclined edge to the edge of the stack 12 and a cutting edge adjoining guide surface 19 is provided. That Separating member 17 is guided by a rail 20 Car 21 worn. Another carriage 22, which can be moved independently of the first carriage 21, carries clamping jaws 23 for detecting the edge area of the sheet stack 12 separated layer containing a sheet of release paper.

The tray 3 consists of a lowerable table 24 with controllable supports 25, 26. The table 24 carries the from second transport means 22, 23 transported and deposited sheet layers. Usually the format is of the release paper sheet is slightly larger than the format of the sheets of the stack 12. Purpose of the protruding at the edges Sheets of release paper cause the individual layers to stick together when the sheets are pressed under heat by squeezing out resin flowing over the edges.

The device described so far works in the following way:

The individual sheets of release paper delivered by the cross cutter 8, 9 are approved by roles 10, 11, Defined conveyor speed in the area of the second supply station 2 conveyed floating. The stack 12 is lifted to a level where the top of the stack 'according to the desired layer thickness, the sishnoids of measuring the Tifeftnötfganä 17 dominated (Fig, 3).

J ¹¹ MV ¹ . ¹ '·! ·· ;!

% 4

■ ■

- 16 -

Λ '·

Provided that the people belonging to a shift sheets of the same type are opened in a manner to be described and held up at a stacking corner, can the separating member 17 with its carriage 21 in the direction of the stack 17 are moved. It penetrates with its knife 18, starting at a corner, into the Stack 12 a and the sheets above the knife 18 are through the guide surface 19 approximately into the Height of the conveying level of the levitation bars 16 raised.

The separating member 17 penetrates so far into the stack one that the front edge region of the raised sheets protrudes beyond the separating member 17. This edge area can then of the clamping jaws 23 of the second transport means 22, 2. ' together with the meanwhile equally far or preferably a slightly further promoted release paper sheet 27 are detected (Fig. 4). It goes without saying that the cycle of the cross cutter 8, 9, the conveying speed of the rollers 10, 11 and the actuation of the separating member 17 and the clamping jaws 23, taking into account the transport routes are coordinated »

After the sheet layer has been grasped by the clamping jaws, the carriages 21, 22 move together in the conveying direction, until they have reached the position shown in FIG. The sheet layer is taken along. Of the The carriage 21 with the separating member 17 remains in the position shown in FIG. 5

Position shown in front of the tray 3, while the carriage 22 continues with the jaws 23 so that the Sheet layer slides over the separating member 17. As soon as the carriage 22 with the clamping jaws 23 the front edge of the Stack has reached the shelf 3 is opened by

• '* ι it Γ.' M *

I I

- 17 -

of the clamping jaws 23 the transported sheet layer is deposited on the layers of the tray 3 that have already been deposited (Fig. 6). The carriage 22 then travels a short distance further to fully release the transported sheet layer (Fig. 7). Then the carriage 22 is returned again

§, drive and, together with the carriage 21, stands for one

new duty cycle available. It is also possible that during the process of the carriage 22 from the in Fig. 5 in the position shown in Fig. ', And / or on the way back, the separating member

_f - 17 is already pushed into the stack of sheets.

With the device according to FIGS. 1 and 2 alone can

| ^! only work when the number of arcs is a layer

in a corner over the height of the stack 12 opposite

. the separating member 17 are held up. With the additional

chen device according to FIG. 8, which is designated as the leafing station in FIGS. 1 and 2 with the reference numeral 28, it is possible to turn out the desired number of sheets per shift by machine and hold them up.

The opening station 28 is laterally next to the stack of sheets 12 in the vicinity of a corner of the stack of sheets 12 arranged so that it does not hinder the transport of the sheets. The inclined cutting edge of the knife 18 is adjacent to the leafing station 28 with its tip.

The Aufblätterstation 28 has a sharpened up 'position ■ 29 which from the side into the stack 12 and

can be pushed in parallel to the conveyor edge «

The support 29 has a rising guide surface 30 in the front area and a sloping support surface 31 in the rear area. The case lines of the 'Le itr 3NC surface and the support surface 31 extending substantially parallel to the bisector of the corner of the stack 12. Preferably, the falling Lab

ätützfläche 31 f edefe'eläät'isähig ible "* The VcSi? i? ich ^a tüng 28 also has a fully controllable Öecfenhältf 32 in the form of a vörrie sharpened rod made of round material and a parallel arranged _t also pre-controllable finger 33 in the form of a sharpened Rod made of round material of smaller cross-section on »Gegerihäiter 32 and fingers 33 lie / seen from above _t perpendicular to the drop line and in the pilot-controlled state of the support 29 above this $ The counter-holder 32 is supple in height and forms in the pilot-controlled state together with the species-increasing guide surface 30 a clamp for the raised sheet layer * On the side of the support 29 opposite the opponent 32 and the finger 33, a gripper 34 is provided which, with the aid of a hinge mechanism (not shown) and associated actuation elements, describes a curved path to be described in detail. This gripper, too 34 can be piloted in one direction / which, when viewed from above, runs parallel to the line of fall of the support surface 31 * The gripper 34 has a gripping surface with a high coefficient of friction compared to the sheet material or is designed as a suction device >. Finally, the device 28 also has a pre-controllable retaining element 35 which can be pre-controlled in a plane above the counter holder 32 and outside the movement spaces of the gripper 34 and the binger 33.

Instead of the gripper with the knobbed gripper - / - 3. surface can also be a claw trained as a mammal

36, as indicated in FIGS. 12 and 13 and in the Fig * 14 to 17 shown in detail, may be provided. The sucker 36 is preferably of a joint and

"19"

ÖShWerikmeöhäftismUs' 37 with associated activity " gärieri / like Eyii.nderkölbenänötfdnUng'en / worn / äö that rubbed the KUrVenbähn already mentioned above / Sie deff Gripper 36 moves the suction cup 36 takes place. In Fig. 17 part of the joint is ^ and SähWenk Mechanism 37 with associated actuators The end face 38 of the suction cup 36 shown carries a Vol. * Standing rib 39. Furthermore, in the end face 38 a groove 40 crossing the rib 39 is provided * end face 38 / rib 39 and groove 40 cause the from Sucker 36 eleven grasped the bow in opposite directions is "kinked". The mammal 36 carries a on the outer edge Inclined annular groove 41 / in which an exchangeable annular disk 42 made of elastic material is seated.

This device 28 operates in the following manner:

The stack 12 is raised by the lifting elements 14, 15 until the top of the stack reaches the pilot operated counter-holder 32 strikes. This vertically yielding counterpart ^ holder 32 also serves as a sensor for a control device, so that he gives the command to stop the lifting elements 14, 15 at the moment of the strike (FIG. 10). Now the edition 29 is pre-set. When entering the stack 12, it lifts at the corner of the stack 12 Arcs of an indefinite number due to the rising guide surface 30. At the same time the yielding opponent becomes 32 raised, so that between the Gegefikhalter .32 And the arches are glued into the rising guide surface 3Ö (Fig. 11).

In the subsequent phase, the gripper 34 is shown in dashed lines in FIG. 11 and marked out in FIG. 12 Curve track 37 moved * The will be free

"20"

protruding parts of the BÖgefi in Riöht-Ung of the stack 12 up to the attachment to the? sloping support surface 31 ge = arch (B ¹ Ig. 12) ί At the end of this phase, the peeling of the upper arch can begin.

The arches on the support surface are used to flip the pages pressing gripper 34 is pilot-controlled in the direction of the line of fall of the sloping support surface 31 * It arches the upper arch between the Gegenerihaltef 32 and the Gripper 34 in a tunnel-like manner (Fig. 13) *

The finger 33 is now inserted into the tunnel-like bulge pushed in * The finger 33 holds the upper sheet firmly / so that the gripper 34 on a further, extended curved path 38 can return to its original position (Fig. 14). The sheets not opened by the gripper 34

straighten up again and assume the position shown in FIG.

To increase the separation between the exfoliated upper sheet and the remaining sheets, finger 33 swiveled up (Fig. 15). So that the finger 33 can act again when the next sheet is opened it is detached when held up by the pilot-controllable retaining element 3 (FIGS. 15, 16).

The phase according to FIG. 16 can be similar one after the other Connect work cycles, each beginning with the phase according to FIG. 11 * The number of work cycles depends on the number of sheets required for a layer. Once the desired number of sheets has been opened and held up by the retaining element 35 (Fig. 17), then the counter holder 32 and the supports 29 withdrawn. The sheets that have not been turned up lie back on the stack 12.

η ιι πί ·; ^:: ; 1 ^2l

21 -

This is followed by sidh. As schott aiii example of Fig "* 3 and 4 explains / the phase in which the padded sheets from Trennörgäfi 17 grips below and therein by the clamping jaws 23 together with the supplied separating" paper sheets 27 are detected (Fig * 10) ₄ The Introducing the separating organ 17 with its sword 18 is not critical in this case, since a large wedge is kept open for it * The further transport of the layer thus formed takes place in the manner described above with reference to FIGS. 3 to 7 *

Instead of the one shown in FIGS. 11 to 14, a knobbed articulation Gripper! 'Laugh with a gripper exhibiting a high coefficient of friction 31, a suction device with suction air according to FIGS. 19 and 20 can also be provided. Such a gripper is not dependent on counter pressure. As FIGS. 19 and 20 show, it then also forms a tunnel-like bulge with the captured sheet when it lifts the sheet from the other sheets as a result of a controlled kink, In detail, this sequence of movements of the kinking or pivoting of the suction cup 36 can be seen from FIG.

^ a & tega ^^ '

• Γ ·

■ · 1 ·

Summary:

The invention relates to a device for layering sheets of different types, in particular, of two storage stations arranged one behind the other. | ^!

On the front side of the second> in the conveying direction

Supply station is a separator with a knife j

arranged, which is £ against the end face movable such that it enters the stack, and a 1

has inclined guide surface that lifts the arches. §) 'The first supply station is assigned a means of transport ( with which the sheets up to the second

Storage station are transportable. The transport 1

medium act exclusively on the upper sides of the I.

Arches a. On the front of the second storage rack tion are second means of transport with clamping jaws for;

joint detection of the raised sheets and the sheets conveyed by the first transport means are provided. With this second transport means, the sheets can be conveyed to above the depository.

For the disclosure, Fig. 3 should be provided. \

Claims (3)

Ζ 'Sc' PLIÖRACK patbntanwaltsbOro sohumannstr. 97 · d-4000 Düsseldorf Tetefon: (02II) 6S3346 Telex: 08586513 copd PATENTANWÄLTE: PipWng. W, COHAUSZ Oipl.-lng. R. KNAUF DipHng. H B. COHAUSZ · DipL-lng. D. H. WERNER March 31, 1981 Claims: 1. Device for layering, in particular, various types Arches, consisting of two storage stations arranged one behind the other for the two types of arches, namely cover and layer sheets, a first transport means, with which the cover sheets individually from the first Storage station (cover sheet station) can be conveyed to the second storage station (layered sheet station) in one level which are above the top of the stack formed by the layered sheets of the layered sheet station, a separating element assigned to the layer sheet station and having a knife with an adjoining guide surface, the end face of the stack is movable in this way is that it penetrates with its especially inclined cutting edge into the stack and with the guide surface the sheet or sheets under which it engages approximately up to the conveying level of the sheets from the cover sheet station r lifts the clamping jaws on a second means of transport for the common detection of the cover sheet brought up by the first transport means and the lifted one or more Has layer sheets at the front edge and with which the gripped sheets up to one behind the layer sheet station arranged deposit can be conveyed, characterized in that the separating device (17) on the in the conveying direction arranged on the front side of the layer sheet station (2) K / Tn, - 35 041
9.3.81 IN THE. - 2 - is and that the first transport means (10,11,16) over the layer sheet station (2) to the front Extend side and siiid designed such that they act exclusively on the upper sides of the arches (27). 2. Device according to claim 1, characterized in that the first transport means for the cover sheets promotional Have suspension elements (16) with blown air-fed nozzles arranged on the underside. I, 3. Device according to claim 2, characterized, that the first means of transport (10,11,16) a driven 'f. bene conveyor roller or a driven conveyor roller- '. pair (10, 11) have, which promotes the individual cover sheets (27) essentially slip-free and supplies the floating bars (16). 4. Apparatus according to claim 3, "^ ₁ characterized by that the distance between the conveyor roller or rollers of the first transport means (10,11,17) and the clamping jaws (23) of the second transport means (22,23) in the packing position is equal to or slightly greater than the length of the deck ^ sheets (27) from the first storage station (1) is. 5. Device according to one of claims 1 to 4, characterized, that side love the stack (12) *, η that of the shelf facing side of the layer sheet station (2) one of Il I Il Il IIIII Uli I. I. IIIIII III I Il IIIIIIII II * Ι · «· Ι! t 4 Ii lit 'κ' ι · '! ι'ι Ίι ' ! j I'LPf · ί ι this applies in "the stack (12) insähiefebäre supports (29) with a rising guide surface (Söj 2Um HÖähsöhWen ^ ken of the ¹ edition (29) original handle arches (35) is provided / that a mobile Gegenerihaltei is provided over the Bogönstäpei (12) ? (32) is provided / with the "On ³ position (29) a clamp for the From the support (29) Untergrifferi arches (35) forms that a lowerable from the top to the raised arches (35) and in the direction of the Counterholder (32) advancing gripper (3 · 4) is provided for the Γ top sheet in each case / that is provided from the side from a finger (33) transversely to the direction of displacement of the Gripper (34) between counter holder (32) and gripper (34) pre-controllable "is And that above counterholder (32) and gripper (34) a protruding urbate restraint element (35) intended for the finger (33) held / maximum turned sheets is* 6. Apparatus according to claim 5,
characterized in that the crest of the rising Leiflache (27) of the extended support (29) lies in the area of the sheet stack (12) * 7. Apparatus according to claim 5 or 6, characterized ^ that the support (29) is arranged in the vicinity of a corner of the stack (12) and the fall line of the ascending one Guide surface (27) at an angle to the edges of the stack (12) runs. 11 * ii «1 11th t i I * 8 * Vöjfifieh-Ungnaeh AiiößlfUöÜ 6 "ödesr" 7 / dadUi? Öh ^ ekenri ^ eiähnet / that the edition · ?. (29) has a sloping oil support surface (28) on the "deif of the guide surface (2,1) against = over the side of the ridge" Prevention according to claim 8, characterized / that the support (29) in the area of the sloping Öttitz surface (28) is resilient * Device according to one of Claims 5 to 9, thereby kerinzeidhriet, that the counter holder (32) is supported resiliently in height 11. Device according to one of claims 5 to 10, characterized in that that the Kohtaktbereich the gripper (34) has such a coefficient of friction with respect to the sheet material that When moving, there is as little slip as possible between the gripper (34) and the bow * 12. Device according to one of claims 5 to 1O, characterized in that the gripper (34) is a sucker for slip-free Capturing the bow is. i I ¹ y. lit H ' * lit ί i ⁴ⁱ «4ä 13 * ^f lö3? Ifiäht-ürig ^ füääh claim "Ϊ2 / thereby geke Ii ii 2 ei ä Ii ii et, · that a swivel mechanism" (3?) For the Säügel? (36) is provided / with dent dei? Movement of the mammal (36) in the direction of the opposite half (32) i Device according to claim 13 / characterized / that the end face (38) of the mammal (36) has a vöjisfceheri " de rib (39) and a groove (40) crossing the rib (39) is provided in the end face (38) * I5i device according to one of claims 12 to 14 / with a the sealing edge surrounding the face is made of elastic Material, characterized in that the sealing edge is formed by a ring (42), which sits exchangeably in an outer annular groove (41) of the suction cup (36). . Device according to one of "Claims 6 to 15," thereby characterized in that the support (29) is near a corner of the stack (12) is arranged and the fall line of the ascending Guide surface (27) at an angle to the edges of the stack (12) runs.