DE10220301B4 - Clamping device with adjustable clamping and holding elements - Google Patents

Abstract

Clamping device (100) for receiving and / or holding / clamping and / or moving containers, pallets or the like (98, 99), comprising
- A clamping frame (20, 40) with circumferentially fixed deflection elements (10, 21-26, 41-56), which
- Have at least one longitudinal feedthrough (2, 3) and a transverse feedthrough (4-7,) in at least two mutually different planes, wherein
- In at least one of the longitudinal bushings (2, 3) a rack (9, 28, 29, 31, 62-68) and in at least one of the transverse feedthrough (4-7) another rack (11, 12, 27, 70) out are, which interact functionally via a rotatable element (8), and
- Clamping elements (33, 60, 61) which are operatively connected to some of the transverse racks (11, 12, 27) by which they are zoomed up to the contour of the container, the pallet or the like (98, 99), wherein these racks (11, 12, 27, 70) over the circumference of the clamping frame (20, 40) in the longitudinal passages (2, 3) or ....

Description

object The invention relates to a clamping device with adjustable clamping and holding elements, for example, for pallets on a palletizer.

From the DE 44 14 001 A1 is a palletizer known that is used for loading or unloading pallets with cargo or containers. For the supply or removal of empty pallets is provided, while maintaining a continuous operation, the empty pallets with the help of a box conveyor of the palletizing or remove. The transfer of the empty pallets to the box conveyor or vice versa from this to the pallet loading is done by controlled gripper devices of the machine. This palletizing machine is primarily used in the beverage industry.

The EP 0 736 469 B1 discloses another palletizing system. Considering this, the formation of a vertical stack is made up of multiple layers with improvements for stacking.

In the DE 697 00 526 T2 , which deals with a device for placing groups on pallets, several cardboard sheets are placed on a pallet in a pallet loading station. The pallet station includes a movable arm provided with a claw for gripping a row of stacks, and moving means which can move the gripping claw in the X and Y directions with respect to the pallet.

An apparatus for the oriented deposition of uniform objects is known from DE 31 07 495 C2 known. The execution of the stack from the device via a transfer trolley, which is movable in height and down.

A palletizer is in the DE 196 07 563 C1 described. For the horizontal and vertical movement of a load carrier, only a single controllable drive device is used. This is possible because it is provided to use an elongated, endless and flexible, drivable by the drive device in its two longitudinal directions Tragele element, which is guided over at least four arranged on the machine frame deflecting elements. The support element extends vertically between a first lower deflecting element and a first upper deflecting element, between the first upper deflecting element and a second upper deflecting element, and vertically between the second upper deflecting element and a second lower deflecting element. Furthermore, the support element is guided by a support and driving connection device between the support element and the horizontal slide or the load carrier, so that it passes through substantially horizontal and vertical track sections. The deflection elements are designed, for example, in the form of take-up rollers or drums and can in principle be designed as stationary elements, such as baffle or rods, over which the chains or belts or the like are slidingly guided away.

The in the aforementioned solutions used devices within the devices for on or To run of pallets or containers as well similar to others exhibit designed objects the disadvantage that they only for a pallet size or a container circumference are usable, so for from this different size one own device of this kind is needed.

From the DE 14 56 421 a carrying and guiding device for a gripper is known. The support and guide device has two racks, which are functionally connected to each other via a pair of sprockets or wheels, wherein a horizontal movement of the first rack causes a vertical adjustment of the other rack. The first pinion has a smaller diameter than the second pinion.

A clamping device for releasably securing and centering a workpiece describes the generic DE 199 21 939 A1 , By means of the clamping device, the workpiece is centered by first clamping jaws fastened to piston rods and fixed firmly in the clamping device by means of further clamping jaws fastened to piston rods. Within this clamping device larger and / or longer workpieces can be clamped. To adjust the jaws gears are evenly distributed in the clamping device. The gears have a second toothing, in which engages an external toothed spur gear connecting the three gears. About a radial movement of the external gear, the piston rods of the first piston are translationally movable relative to the center line of the opening defined by the clamping jaws in the clamping device.

In the DD 249 900 A1 a gripping device is disclosed for receiving piece goods, such as paper rolls. The gripper arms are stepless and simultaneously adjustable. This is done via a trained at the lower end with gear sectors crank lever whose gear sectors engage in movable racks. These are mounted on the Greiferarmgehäusen in which the gripper arms are located with the movable jaws.

Here the object of the invention is to provide a device for a transfer, Recording and / or Specify removal station, held with different sizes / circumferences can be.

Be solved the objects by the features of claim 1.

Of the present invention is based on the idea, a clamping device provide, integrated in the adjustable clamping or holding elements which are at a preferably simultaneous clamping at different Sizes / outer contours the container, Pallets or the like are brought to this zoom and then keep them centric or tension.

The activity the clamping or holding elements is preferably carried out by a single drive.

The Adjustability of the clamping or holding elements is by movable Parts realized, to which they are attachable. Such movable Parts can For example, be racks.

The Clamping force is generated by the at least one drive and by means of several deflecting elements up to the movable parts transfer the clamping or holding elements. The deflecting elements are at vertices as well as on at least two sides the clamping device attached to a tenter. At the corners serve the deflection for transfer or deflecting the direction of movement along the clamping device on the deflectors on the sides, which in turn transfer the force to tighten or hold on the clamping or holding elements make.

The Deflection elements are characterized by the fact that they transmit a movement Own element, which may for example be designed as a wider gear can. Within the gear storage takes place via a Ball bearing, which causes low friction. In principle, cooperate with this gear at least two different racks together, at right angles and offset from each other in different Layers are attached.

In the application as Eckumlenkelement in the clamping device are the two over linked the deflecting Racks the rotating racks of the clamping device. In Application as Seitenumlenkelement be one of the rotating racks and the racks of the clamping or holding elements coupled together. At least one of the revolving rack is directly connected to the Drive in connection.

In continuation The invention relates to the exciting racks with the clamping elements in Integrated adapters, whereby with changing the adapter another Adaptation to the pallets, etc. is achieved. The clamping elements can be designed as plates or contours, i.e., each jaw shape is conceivable.

The Number of clamping elements and thus the deflection depends on Size / size of the container. So is a ¼ Euro range preferably to stretch two to three sides. A bigger Euro pallet however, should be tense on four sides, including the tenter the clamping device can be selected larger can. It is advantageous that all deflecting elements used have the same structure, but for different functions can be used.

at an upgraded with these deflectors clamping device for recording different container or pallet sizes, grab those Clamping elements of the clamping unit independent of the individual size vertically to the container / the pallet, with the relative length of the racks being the smallest possible Size pretends held by the clamping or holding elements of the clamping device can be.

With a clamping device thus different sizes are manageable.

In Practice has shown that with this deflector not stretched in one direction only, but also in two different ways or opposing Directions. In continuation allows the construction of two directly adjacent each other Clamping devices that functionally share parts of a frame.

Of the Clamping frame of the clamping device is preferably made of aluminum profiles constructed, on which or on which the deflecting elements are mounted. For the Use on the profile frame the tensioning device, the deflecting elements preferably at least a recess on.

By Assembly and combination of the deflection elements with each other are Furthermore, various other movement direction transfers possible.

Of the Profile structure as well as the design of the deflecting effect individually but also in combination a the individual requirements of a User customizable Tensioning device.

Based an embodiment with drawing, the invention will be explained in more detail.

It shows

1a a deflecting element in a front view

1b the deflecting element in a side view,

1c the deflecting element in a sectional view,

1d a representation of the operation of the deflecting element,

2 a two-sided clamping device with deflecting elements and a drive,

3 a four-sided clamping device,

4 a front view of an adapter attached to the deflection,

5 a representation of the deflecting element for another application.

In the 1a to 1c is a deflecting element 10 shown in several views.

1a shows the deflecting element 10 as a log 1 , the at least one, preferably two longitudinal penetrations 2 . 3 has, on the at least one, but preferably four transverse ducts 4 to 7 matched and on the longitudinal bushings 2 . 3 are aligned vertically, as in 1b shown, but this is not a condition. The longitudinal bushings 2 . 3 as well as the cross passages 4 to 7 are in at least two mutually different levels within the block 1 introduced and form with a wider gear 8th as a rotatable element inside the block 1 a functional unit ( 1c ).

As in 1b recognizable by at least one of the longitudinal passages 2 , a rack 9 led, whose teeth in the gear 8th intervene and this twisted when the rack 9 is moved. 1c shows the presence of the teeth 8.1 of the gear 8th in the cross openings 4 to 7 ,

As in 1d shown, is with adjustment of the rack 9 another rack 11 adjusted by one of the cross passages 4 is guided. This adjustment is made by the in the block 1 located gear 8th , in the same way, but in another plane, teeth of the rack 11 intervention. This rack 11 becomes thereby against the block 1 advanced or reset.

2 shows a two-sided exciting tenter 20 a clamping device 100 , For example, a palletizer, not shown, using a plurality of deflection 10 ,

At correspondingly provided sections or areas are several deflecting elements 21 to 26 attached, each with interchangeable adapters 32 on which clamping elements 33 are attached, over exciting racks 27 functionally related. The exciting racks 27 are preferably an integral part of the adapter 32 , Three of the deflecting elements 21 to 23 such as 24 to 26 are each with each other a longer on the circumference of the clamping frame 20 attached rack 28 respectively. 29 mechanically coupled.

The two circumferentially mounted racks are driven 28 . 29 preferably by a drive 30 , For example, a cylinder, and one, the movement of the drive 30 on the racks 28 . 29 transmitting further circumferentially mounted rack 31 ,

The corner deflection elements 21 such as 24 Take this drive rack 31 on to the movement of the drive 30 on the other two racks 28 and 29 over the individual gears 8th by centric travel through the deflector 21 . 24 transferred to. With the transfer of movement to the racks 28 . 29 Be over the deflectors 22 . 23 . 25 . 26 the individual exciting racks 27 towards the container / pallet to be clamped 99 moves, in turn, by their movement the adapters 32 and thus the clamping elements 33 against this procedure.

3 shows a four-sided exciting tenter 40 the clamping device 100 with several deflecting elements " 10 "This tenter frame 40 serves for holding or holding large pallets or containers 98 , Again, a variety of deflection 41 to 56 on or on the circumference of the clamping frame 40 attached, with adapters 58 . 59 and these each with clamping elements 60 . 61 functionally related. The racks attached to the circumference 62 to 67 are over deflecting elements 41 to 56 functionally interconnected. One of the deflection elements 56 stands over another drive rack 68 and these with a drive 80 , preferably a cylinder, in conjunction.

To increase the holding force on this Be food holding 98 become clamping elements 61 preferred, which have a higher holding or clamping surface. These are more, with the clamping element 61 connected guide rods 69 provided without teeth, through which the clamping elements 61 and the pallets 98 can be kept safe.

These bars 69 are in the embodiment specifically in the deflection 41 . 42 . 49 . 50 , ie on the narrow sides of the clamping device 100 or the clamping frame 40 provided and will be in the same direction as the racks 70 by driving over the clamping elements 61 emotional.

From the cylinder 80 moves, adjust the circumferentially mounted racks 62 to 68 one another, with the drive rack 68 over the deflecting element 55 the rack 62 this moves the rack 63 , which in turn is the rack 64 moves all the way to the rack 67 that from the rack 66 is adjusted. About the deflecting elements 41 to 56 becomes the movement of each rack 62 to 67 on the racks 70 the adapter 58 . 59 and thus on the clamping elements 60 and 61 transferred so that these at the same time against the pallet or the container 98 be moved and keep them in the middle.

An illustration of such adapters 58 with a clamping element 60 is exemplary in a front view after 4 demonstrated.

The flat clamping element 60 has screwing options 60.1 to 60.4 on, one of which connects to the rack 70 shows. To increase the stability is provided, even with these adapters 58 additional non-toothed bars 71 to attach to a tilting of the clamping elements 60 to prevent.

Exemplifying further uses is in 5 the deflecting element 10 shown in a further embodiment. When adjusting the rack 9 become the rack 11 and another rack 12 adjusted against each other in two different directions. This allows, for example, a double clamping by a single deflecting element 10 ,

When used inside a clamping device 100 can have two or more functionally separate clamping frames 20 . 40 coupled together and thus attached directly next to each other, with parts of the clamping frame 20 . 40 be used by both.

In addition to a double clamping possibility can with the deflection 10 a tensioning by stretching (stretching) take place, wherein the clamping elements then not on, but preferably in a container / pallet 99 . 98 grab and hold them under tension.

The clamping frames 20 . 40 are preferably aluminum profiles 34 , on which or in which the deflection elements 10 on or be used.

For the attachment or installation of the deflection elements 10 on or on the profiles 34 have the deflecting elements 10 preferably recesses 12 on (see 1a to 1c ). As a result, an accurate fit attaching the deflecting elements 10 on the profile 34 possible. The deflecting elements 10 are screwed in the middle.

Claims (11)

Clamping device ( 100 ) for receiving and / or holding / clamping and / or moving containers, pallets or the like ( 98 . 99 ), comprising - a clamping frame ( 20 . 40 ) with deflection elements fastened on the circumference ( 10 . 21-26 . 41-56 ), which - at least one longitudinal feedthrough ( 2 . 3 ) and a transverse feedthrough ( 4-7 ,) in at least two mutually different planes, wherein - in at least one of the longitudinal ducts ( 2 . 3 ) a rack ( 9 . 28 . 29 . 31 . 62-68 ) and in at least one of the transverse feedthrough ( 4-7 ) another rack ( 11 . 12 . 27 . 70 ) are guided by a rotatable element ( 8th ) functionally cooperate, and - clamping elements ( 33 . 60 . 61 ) with some of the transverse racks ( 11 . 12 . 27 ) are functionally connected, by which they up to the contour of the container, the pallet or the like ( 98 . 99 ), these racks ( 11 . 12 . 27 . 70 ) over the circumference of the tenter ( 20 . 40 ) in the longitudinal bushings ( 2 . 3 ) or transverse bushings ( 4-7 ) guided racks ( 9 . 28 . 29 . 31 . 62-68 ) with each other and at least with one drive ( 30 . 80 ) are in functional unity. Clamping device according to claim 1, characterized in that the holding elements ( 33 . 60 . 61 ) to the outer contour or to the inner contour of the container, the pallet or the like ( 98 . 99 attack). Clamping device according to claim 1 or 2, characterized in that the holding elements ( 33 . 60 . 61 ) the container, the pallet or the like ( 98 . 99 ) record centrally. Clamping device according to one of claims 1 to 3, characterized in that in addition to the further rack ( 11 . 27 . 70 ) one of these in the opposite direction acting rack ( 12 ) in the deflection element ( 10 . 21-26 . 41-56 ) is. Clamping device according to one of claims 1 to 4, characterized in that the clamping elements ( 33 . 60 . 61 ) and the racks ( 11 . 12 . 27 . 70 ) Component of a replaceable adapter ( 32 . 58 . 59 ) are. Clamping device according to one of claims 1 to 5, characterized in that the clamping elements ( 33 . 60 . 61 ) additionally with a non-toothed guide rod ( 69 ), which by a further cross-passage ( 4-7 ) of the deflection element ( 10 . 21-26 . 41-56 ) is guided. Clamping device according to one of claims 1 to 6, characterized in that the deflecting element ( 10 . 21-26 . 41-56 ) as a block ( 1 ) and circumferentially a flat cutouts ( 35 ) is provided. Clamping device according to one of claims 1 to 7, characterized in that the clamping frame ( 20 . 40 ) from profiles ( 34 ) is constructed. Clamping device according to claim 8, characterized in that the profile ( 34 ) is an aluminum profile. Clamping device according to one of claims 1 to 9, characterized in that these two-sided, three-sided or four-sided exciting construction. Use of a clamping device according to one of claims 1 to 10 in a palletizer.