DD222838A5 - METHOD AND DEVICE FOR TRANSPORTING DOSAGE COVER STACKS IN A TRANSPORT CONTAINER - Google Patents

Abstract

In order to enable a transport of stacks (8) of can ends, which abut each other with their flat sides and stand on their edges, the lid stacks (8) are gripped and compressed at their ends by a gripping device (10) and compressed in a transport container (13 ), whose length with respect to the length of the can lid stack (8) is chosen so that the compressed lid stack (8) after releasing the gripping device (23) in the Transportbehaelter (13) can relax only partially and thus under bias to the frontal Begrenzungswaenden (24) of the transport container (13) is present. The transport container (13) which is suitable for this purpose has in its frontal boundary walls (24) upwardly and to the inside of the transport container (13) open grooves (25) into which the grippers (23) of the gripping device (10) can enter. Fig. 1

Description

j

S O

"Method and device for transporting can lids in a transport container"

Field of application of the invention;

The 'invention relates to a method for transporting their flat sides abutting, standing on their edges can lids in stacks in a transport container. The invention further relates to a device suitable for carrying out the method for filling and emptying the transport container. Characteristics.of the known teehn .. Solutions:

Can lids are known by stamping and punching. Made of a sheet and then gummed annular. For the purpose of curing the gumming, the lids are transported through a heating oven, from which they are conveyed out in gutters, standing on their edges. ,

Not always it is possible, the can ends immediately

continue to process after their production, especially since the can ends are not covered by the. Abf üllbe.trieben be produced. As a result, there is a need to transport the can lids produced. _r .

It is known to carry out the transport of the can lids in lattice boxes, so 'stable' iron containers, whose walls are made of wire mesh '. These mesh boxes are filled manually, with lying .Deckelstapel formed between the end walls of the grid box. The covers are separated from each other in the vertical direction by Zvischenlagen.

It is also known, for the transport of the covers, in particular within an enterprise, to provide shaped pallets into which the cover stacks are inserted. The 3oden .dieser pallets is. designed in a groove shape, so that the lid stack learn a certain determination. The pallets can be filled automatically, by passing through suitable departments at the exit

'Of the furnace lid stack of the required length are formed by means of roof-shaped magnet arrangements ^; grasped and inserted into a gutter of the pallet.

It is also known to package the divided stack of lids in a tube, for example made of solid paper, and then to transport. _, _.

These known ways to transport can ends, have the disadvantage that the can ends are partially damaged during transport. This applies in particular to the can ends against the front boundary walls of the lattice box or pallet The surface is damaged by rubbing against the front boundary wall.

A fully automatic packaging of the can lid can be achieved only with the magnetically transported in pallets stacking stacks. However, this known method is defined on pallets and applicable only for magnetizable can lids.

Object of the invention.:.

The invention has for its object to provide a method for transporting can lids in stacks, which allows automatic packaging and ensures a gentle transport of the can lid. -

Explanation of the essence of the invention:

This object is achieved by a method of the type mentioned, in which the lid stacks are taken for loading into the transport container at the ends and compressed in the axial direction of the lid stack to a certain extent and the length of the lid stack in --ReIa ti on to the corresponding Length of the interior of the transport container is selected so that the lid stack can · relax in the transport container only partially.

The invention is based on the finding that the can lids provided with projec- tions when lying against each other with their flat sides in each case. adjacent profile deepened ungeri

i intervene. However, this does not lead to a full-surface · j.

Together chairs. Thus, there always arises a certain, through the "

Profi.roll or gradations of the can lid 'held:

Distance. By pressure on the front ends of the cover!

stapeis, in which the lids stand on their edges, can be ^:

· reduce the distance between the can lids by a small amount. :

This compression of the stack of lids takes place against.

elastic restoring force arising from the profile loading |

 or gradations of the can lid results. This elastic ·

Restoring force is used according to the invention for .Transport the can lid. When inserted into the transport container, the can lids stack are compressed and spent in this state in the transport container. The lid stack is dimensioned / that it is slightly shorter in the compressed state as the clear length of the transport container between the frontal boundary walls. In the fully relaxed state of the 'stack of lids but larger than this length. As a result, the lid stack in the transport container can partially relax when released in the container. Accordingly, the lid stack Γη is the transport container under a certain bias to the frontal boundary walls. This removes the possibility of 'end caps'

! '·' '.

! To move relative to the frontal boundary wall, so that also the end covers are not damaged during transport.

The unloading of the transport container is preferably done; in the analogous way, by grasping the respective lid stack at its ends and. is compressed to some extent. '-.

Depending on the length of the stack of lids, '' may be appropriate or necessary ', the middle' range of; In addition to holding lid stack when the lid stack is gripped and compressed at its ends .: For shorter lid stacks, this -additional'mounting is not required. The holder can be done by laterally engaging below the central axis of the lid stack rods or retracted into the cover stack holding knife.

The inventive method can be fully automatic

. ' carry out.· . ''

j To implement the method lends itself to a top

I loading or unloading transport container with frontal

Boundary walls on which the end caps of the lid

when the boundary walls are inserted into the

; rich, in which the lid stacks come to rest, to the inside

! side der.Begrenzungswände have open grooves whose width

; significantly smaller than the width of the lid stack.

In fact, in the transport container according to the invention, the grooves allow the lids to be stacked in the compressed state.

  stand can be introduced into the transport container and that: the required gripping device after the partial relaxation of the lid also from 'the transport container again

·. , can be pulled out. It can per lid stack on each 'the front. Be provided boundary wall two grooves, which lie symmetrically to the center of the lid stack. A suitable for these grooves gripping device would forked

  Have gripper whose fork tines cover the lid symmetrical to the center of the lid stack. '

The above-mentioned object is further achieved by a device ^: for filling and emptying of said transport containers

with lying stacks of lids 'standing on their edges'; : the and with their flat sides abutting, Profanan'rollungen having and. in cans pre-demanded can lids exist ^ solved when the device has the two ends of a divided Decken.ls tapels acting gripping devices,

which can be moved together under the length of the divided stack of lids, and if the gripping device can be moved horizontally and then lowered into the grooves of the boundary walls of the transport container.

In this case, preferably, the gripping device is laterally movable on a portal, below which at least one channel, the transport container and a supply magazin are arranged next to one another in the direction of travel of the portal. In this arrangement, the gripping device can grasp the lid stacks in the manner mentioned, moved horizontally on the portal on the transport container and then lowered into the transport container to let go of the lid stack, which partially relaxes.

; In a preferred embodiment, gripping

! direction for the lid stack- another gripping device! ,. ,

I arranged at a fixed distance corresponding to the spacing between channel ^j und'Transportbehälter einerseits.und transport containers, and storage magazine on the other hand. ,

Preferably, the gripping devices are simultaneously movable and so actuable that. during the cover stack transport with the first gripping device, the further gripping device performs a transport between storage magazine and transport container. , :

The supply magazine may contain stacked empty pallets, if the lid stacks are to be inserted in pallets _/ or liners, if a lattice box is used as a transport container. in which the stacked lid 'were separated by an intermediate layer'.

; Since the transport of the cover stack into the package or • the unstacking takes less time than the pre-promotion of 'can lid in the conveyor trough, it is advantageous if at least two stations each with gutter, transport container and storage magazine are arranged under the portal, between them the gripping device can be alternately moved back and forth. j This arrangement is particularly suitable for packaging the iDeckelstapel, the gripping device automatically by

the lid which has accumulated at the end of the channel can be called up. ..

Auaführungsbeis pie la: ''.'-.-'.

The invention will be explained in more detail below with reference to the "exemplary embodiments illustrated in the drawing", in which: FIG

Figure 1: a device for filling pallets

with pre-conveyed on chutes lid stacks;

Figure 2: a device according to Figure 1 for filling. , '·' Of grid boxes;.

FIG. 3 shows a side view of the device according to FIG

t. ... "".

Figure 2 in another working position; '

FIG. 4:. a gripping device for a lying. Deckelstapei; ''

FIG. 5: shows a side view of the gripping device; , - Figure 4; '' · ·

FIG. 6 shows a lid stack clamped under prestress between two end boundary walls of a lattice box;

FIG. 7 shows a lid stack according to FIG

the gripping device to another piece. 'is compressed for loading or unloading the transport container;

FIG. 8 shows a view of the arrangement from FIG. 7

from above ; ,

- 9 -

FIG. 9:

a perspective view of a provided with interior linings grid box; -

FIG. 10:

FIG. 11:

FIG. 1 2:

FIG. 13:

FIG. 14:

a stacking scheme for the lid stack in a grid box;

a detailed representation of applied to an end boundary wall of a grid box can lid;

a detailed view of can lids in a molded pallet; :

a gripping device with a holder formed from holding holder for the central region of the lid stack;

a detail of the holding knife with centering device of Figure 13.

FIG. 1 schematically shows two loading stations 1, 2, - which are under j,

 .- '"' ·. 'R

a common portal 3 are arranged. Stations 1,2 · |

each have a conveyor trough assembly 4, with the can! Cover 5 of a schematically indicated drying oven. 6 , i be promoted. The support in the grooves 7 is carried out with I-standing on their edges can lids 5, which already constricting to Lie \ Deckelst'apeln S. (Figure 3) are separated. "I

On the Portal'3 a carriage 9 is moved laterally, to which a first gripping device 10 for the lid stack 8 is attached

is. In addition to the ersteh gripping device 10 is a;

second device 11, which is equipped with suckers 12th, \

In addition to the channel arrangement '4 are transport container' <

13 -in the form of individual pallets 14. The individual pallets are closed!

a transport unit stacked on each other. :

, -ίο- ..

again next to the transport container 13 there is a

magazine magazine 15, the in. present case consists of stacked empty pallets 14. ,.

The device described operates as follows:

The first gripping device, which in the present case corresponds to the two channels 7 of the channel arrangement 4 twice, grips two lid stacks 8 and is subsequently raised. The carriage moves one position to the left, so j .- ',' .. ι

that the first gripping device 10 is above the transport containers j 13. There, the lid stack 8 are lowered and described in more detail below. Way in the transport container 13 ,. If in this case the last two free rows of the pallet 14 are filled, the second gripping device 11 stands exactly above the storage hopper 15 and at the same time as the first gripping device -10 , The suction cups grip the uppermost empty pallet 14-out of the storage magazine 15. Both gripping devices 10, 11 are then raised again When the carriage 9 'is moved back, the second gripping device 11 with the sucked-in individual pallet 14 passes over the storage containers 13 and the first gripping device 10 via the channel arrangement 4. During the common lowering of both gripping devices 10, ¹ , the second gripping device places an empty pallet 14 on the filled pallets and the first gripping device 10 detects new stack of stacks

Since these processes can be handled relatively quickly in relation to the prefeeding speed of the can lid 5 in the channels 7, the second loading station 9 can also be operated with the same cart. Of course, a loading control can be provided here so that the charging station 1/2; the car 9 priority calls / .an first a removable;

- • 11 -

Lid stack 8 is available.

FIG. 2 shows a completely identical arrangement to FIG. 1, but in this case it serves to fill lattice boxes 16 as a transport container 13. In this case, the storage magazine 15 is filled with thin intermediate layers 16 which are respectively inserted into the grid box 16 by the second gripping device 11 when a layer of the grid box 16 is completely filled, in the illustrated embodiment with six cover stacks 8 '. ,

The side view of FIG. 3 clarifies that the can end '5 individually and flatly leave the oven 6' and by means of a folding-over device 17 in the conveyor chute 7 onto its can th, so that the can lid · 5 with their flat I rarely abut each other. In this case, the can lid 5 by t

  , , '' i

a frame-shaped holding device 18 as a horizontal stack. j

8 held. After a sufficient number of can ends '' ¹ J moves a separator 19 in the way of the following Dosendek- I 'kel, so that immediately takes place a separation of the lid stack 8' j from the next. The respective lid stacks 8 are

 pre-conveyed in the channel 7 and 'can then from the first'. ;

'j

Gripping device 10 are taken .. '!

The gripping device 10 is shown in Figures 4 and b more clearly. It consists of a base plate 20 on which two control cylinders 21 are fixed, the piston 22 of which is connected to a gripper 23. The grippers 23 are movable toward one another and away from each other by means of the pistons 21. In the central region of FIG gripping device 10 is a scissors-type lever arrangement 24, to the ends j zwei'auf both sides of the lid stack 3 attacking, paral- \ IeI to the axis of the lid stack 8 extending Sta-nts 25 loading

-12-

- '12 -

are solid .. With the lever assembly 24, the rods 25 can be pressed against the lid 5 in the 'middle region of the lying lid stack 8. The rods 25 engage below the 'De.ckelmitte 26 on the covers 5, when the cover 5 gegehieinen above a roof-shaped stop 27 abuts, which is connected to the base plate 20. \ '

The rods 25 serve to prevent sagging of the lid stack 8 when it is gripped at its ends by the grippers 23. The control cylinders 21 are formed,. \ That the gripper further Combine ahrbar. As a result, the gripping device 10 can squeeze the lid by a certain amount, the lid stack 8 producing an elastic, restoring force.

In 'of the' held and gripping apparatus 10 compressed form of Deckelstäpel 8 is lowered into the transport container 13 from above "Figure 7 shows this situation in a mesh box 16 about the lowering of the ^{compressed:..} Lid stack 8 with the grippers ^v 23 · to allow the 'end-face boundary walls 24' of the lattice box 16 .zur Innenwand.hin open grooves 25 ', in which the grippers can retract 23. 23. After entering into the desired vertical position, the grippers drive 23 of the, cylinders 21, so that the end covers 26 abut against the end-side boundary walls 24 'under the pressure of the elastic restoring force of the lid stack 8. The grippers 23- can move upwards in the grooves 25' out of the grid box 16 be moved out.

FIG. 8 shows a top view of a deck stack 8 and held by the grippers 2 3 and ¹ compressed; a next to it, already partially relaxed

Lid stack 8 in a lattice box 16.

Such a grid box 16 is shown in perspective in Figure 9. The walls of the grid box 16 are formed as wire mesh. In this form, lattice boxes 16 are commercially available For use as a transport container for the can lid 5, the lattice box 16 shown in FIG. 9 has an inner lining 27 "which is planar on the longitudinal side walls 28 and the front boundary wall 24 'with the grooves 25 on the end sides 29 forms.

FIG. 11 shows that the three groove walls have a conical enlargement 3 0 toward the upper end of the lattice box 16. so that the grooves have an upper funnel-like inlet part-. In.gleicher manner, the s'tirnseitigen inner walls 24 'may be flared upwards to create a corresponding inlet space for the cover 5.

FIG. 10 shows a stacking scheme for cover stacks 8 in a lattice box 16. S. ech cover stacks 8 each form a stack layer 31, which is separated from the overlying stack layer 31 by an intermediate layer 16. Because of the arrangement of the grooves i .25 ', the stacking in the vertical direction is made strictly in alignment. , ',.

Finally, FIG. 12 shows a can lid 5 of a cover stack 8, which in an analogous manner sits partially relaxed in a groove-shaped bottom 32 of a single pallet 14. Also, the pallet 14 has' frontal boundary walls 24 ', which sit for each groove in each case a groove 25' with a conical extension 30 at the upper, open end. The. Edges of the single pallet 14 are provided with stacking recesses 33 and stacking lugs 34, each aligned with each other and one

Stacking aid for stacking the empty individual pallets 14 allow for serving as a Vopratsmagazin 15 Palettenstäpel. - · ·

It will be readily apparent that the arrangements described are suitable not only for loading the transport containers 13 'with the stacks of lids 8, but also for unloading.On unloading, the operations described proceed in the reverse order, ie, in part A relaxed lid stack 8, which is seated in the storage container 13, is gripped and compressed by the grippers 23 which have been inserted via the grooves 25 ', whereby it can be lifted out of the transport container 13. The taken stack is deposited in a conveyor channel 7 and conveyed away for further processing. If a stacking layer 31 is emptied, the second gripping device 12 grips the intermediate layer 1 6 'in the case of the' lattice box 1 6 'and, in the case of the individual pallets 14, the emptied individual pallet 14 and transports this into the supply magazine 15.

Figures' 13 and T4 show an alternative gripping device! 35, in which the lid stack 8 is held in its middle area by retracting the lid stack 8 into the holding stacks 38 and, thus, preventing it from sagging. When retracting the. Haltemesser- 33 in the lid stack 3 Just.ierbleche 36 'that happens when lowering the .Greifvorrichtung 35, a precise centering of the gripping device 35 to the lid by lateral stack 8 is'guaranteed', The total on guide rails ^37: are superimposed. The . Holding blades 38 are displaceable against springs on this guide rail 37 parallel to the longitudinal axis of the lid stack

around

as insertion into the 'lid stack 8 to erieich-'

tern and a shift of the individual lids during the compression

      ι

ken the lid stack 8 by the gripping device 35 to er-; . ^ Possible. - ·,;

Claims (12)

From claims: 1. A method for transporting with their flat sides contiguous, standing on their 'edge cans (5)' in stacks (8) in a.Transportbehälter (13), as "durc h '' signifies that the lid stack (' 8) to be loaded into the transport container (13) at the ends and compressed in the axial direction of the lid stack (8) to a certain extent and that the length of the lid stack (3) in 'relation to' corresponding length of the '. Interior of the transport container (1 3) is selected so that the lid stack (8) -in the transport container (13) only partially.wieder relax- can. 2. The method according to claim -1, characterized in that for discharging the lid stack (8) from the transport container (13) of the respective lid stack (8) gripped at its ends and.um is compressed to a certain extent. , -Jf- 3. The method according to claim 1 or 2, characterized in that the gripped at its ends and compressed lid stack (8) in its central region additionally ./ 'is held. , , , . '., 4., Device for carrying out the method according to one of claims 1 to 3, characterized in that the Vorrich device has the two ends of a divided lid stack (8) acting on gripping devices (10), which extend below the length of the divided lid stack (8). . ',. ; are zusammenfahrbar, and that the gripping device (10) horizontally - moved and then into the grooves (25 '), the. Boundary walls (24 ') of the transport container (13). is lowerable. , ' 5. Apparatus according to claim ' A, characterized in that the gripping device (10) arranged laterally from its longitudinal axis, on einand.erzubewegliche · rods (25) 6. Apparatus according to claim 5, characterized in that.in.der the length of the rods (25) above the Deckelstiapels 7. The device according to claim 4 \ _t characterized in that 'the gripping device (10). into the cover stack (8).  bare holding knife (38). '' ·.. , Apparatus .After claim 7, characterized in that the holder blades ¹ '(38)' are resiliently mounted slidably Axiairichtung of, gripping device (10). (8) a roof-shaped stop (27) is provided. 9. Apparatus according to claim 7 or 8, characterized in that! That in addition to the holding knives (38) a Deckelstape'l (8) \ arranged from above touching centering device (36) j , is. ·; 10. Device according to one of claims 4 to 9, characterized in that the gripping device (10) on a \ portal (3) is laterally movable, below which at least: a channel (7), the transport container (13) and a storage "magazine (15) in the direction of travel of the portal (3) side by side; , Apparatus according to claim 10, characterized in that; in addition to the gripping device (10) for the cover stack (8), a further "gripping device (11) is arranged at a fixed distance, the distance between the channel arrangement (4) and. Transport container (13) on the one hand and transport 'container (13) and storage magazine (15) on the other corresponds. '·  12. Device, according to claim 11, characterized in that. the gripping devices (10, 11) are simultaneously movable and thus are tigb'ar in such a way that - during the stacking of the stack with the first gripping device (10) the further gripper device (11) transports between the supply magazine (15) and transport container (13). , , patent attorneys
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