EP1318963B1 - Charging and discharging device for material in the form of a roll and a combination of a printing device and a charging and discharging device - Google Patents

Abstract

A loading and unloading device (10) for reeled material (34) is designed in the form of a carriage, which can be moved by a single operator, and has a bearing (16) for each of the two lateral ends of a reel (34), it being possible to raise and lower the bearings, which can be locked at least in the raised position.

Description

Technical area

The invention relates to a loading and unloading device for Roll material and a combination of a printing device with such a loading and unloading device.

In the field of printing technology often use cases in which a medium which is present as roll material to is printing. In other words, the printable Medium of a printing device in the form of a wound Roll fed from which the printing device, the medium unwinds. At the output side of the printing device is the now printed medium turn on a roll wound. The rollers to be supplied to the printing device can have diameters of up to 30 cm and are accordingly heavy.

State of the art

The loading and unloading of printing devices and in particular of inkjet printing devices Previously either by a crane, by means of which the role in a suitable storage of the printing device was inserted or removed from this. Alternatively loading systems are known in which the operation is done by two people It is necessary to insert on both sides of the roll the role in the storage of the printing device make or at least monitor this. Such systems are comparative complicated structure and require in particular in the case that the loading and Unloading by means of a crane takes place, a special arrangement of the printing device with respect of the crane. Alternatively, if the loading and unloading is done by two operators, is This is relatively expensive due to the relatively high labor input.

In US 3,279,753 A is a device for handling and transport of large Rollers, e.g. Cable reels, shown. The device is used primarily for lifting larger rollers and to transport the same, for which a lifting unit is formed, which is formed from two levers which are rigidly connected to each other by means of the handle are. On the levers each have a bearing point is formed, in which the storage extensions the roles are taken up. The lifting unit is running around a rotation axis so pivotable through the pivot points that on the side of the handle a multiple longer lever arm than on the side of the roller, whereby a simple lifting of the Role is possible due to the leverage by an operator, the raised State can be maintained by a locking device. adversely In this case, that for lifting wide rollers, the handle have a large longitudinal extent must, whereby a complex or expensive construction and production of loading and Entladevornchtung is necessary in order to withstand the increased loads occurring.

EP 0708 048 A1 describes a loading and unloading device for the installation of a Media cassette or rolls like paper rolls in a copier, with the roll for installation does not have to be lifted by the operator. This is a loading and unloading device provided, which has two receiving hooks, which are height-adjustable via an electric motor are formed. The loading and unloading device is over by an operator circulating uprights along a footprint arbitrarily displaced, which the receiving hook positioned below bearing projections of the male role can be, after which the role by pressing a foot switch, causing a lifting the receiving hook causes, is recorded. The two receiving hooks are always rigid connected by a handrail and can not independently be adjusted in height. It is disadvantageous that a complex height adjustment mechanism is needed to lift roles, which in turn only the simultaneous Height adjustment of both the rollers receiving bearings allows.

Presentation of the invention

The invention is based on the object, a loading and unloading device for roll material by means of which the loading and unloading of roll material to printing devices can be simplified and made cheaper.

The solution of this object is achieved by the loading and unloading device described in claim 1.

Consequently, the device is designed on the one hand by a single operator is movable. For this purpose, the loading and unloading as a car educated. Preferably, the loading and unloading device accordingly roles as well as a handle or a similar Device on, by means of which the loading and unloading by an operator even in the state that is a relatively heavy role in the loading and Unloading device is located, is movable. For storage of a printing device to be supplied or from this Removing role, the loading and unloading device for both lateral ends of the roller depending on a storage. The Bearings are raised and lowered and at least in the locked position locked.

Here is the mechanism of raising and lowering the Role allows it to be designed by a single person Operator can be accomplished. This is for example, by providing one or more levers possible. Advantageously, the roller bearing is the Loading and unloading designed so that they are connected to the Position of the roller bearing of a printing device adapted is. In other words, the lowered position is the lateral roller bearings provided such that in this Position the roller on the storage of the printing device is handed over. When unloading a full roll is intended, the loading and unloading is under moved the stored in the printing device roller, and the Loading and unloading takes over by lifting the Bearings the role.

Finally, the bearings of the invention and Be Discharge device at least in the raised position lockable. This ensures that a role, which was taken from a printing device and to a to be moved to another place, certainly in the raised position remains. Likewise, up to that Time at which a role in the storage of Printing device should be loaded, ensuring that these in the raised position, which as transport position can be designated remains.

The orientation of the loading and unloading device with respect to from a printing device to be removed role or with respect to the roller bearing of the printing device to which can pass a role, for example, through in suitably provided on the printing device Attacks are made. By the invention can also heavy Rolls of material previously used by means of a crane or with Help be handled by two or more operators had, in a simple manner to a printing device be transferred or taken over by this. The insertion a role in the loading and Discharge device can by a crane in a local take place from where the roll by means of the according to the invention, movable loading and unloading device brought to the printing device by a single operator, and is loaded in their storage.

Preferred developments of the invention are in the following Claims described.

The inventive and Unloading device offers advantages, because the two lateral bearings separately lifted and are lowerable.

It is provided according to the invention the two Bearings separately raised and lowered train so that by a single operator first storage on one side, and then storage on the other side can be moved.

In experiments, an actuation of the bearings has Lever proved to be particularly advantageous. This can in particular a comparatively large lever arm of Lever used for a single Operator even heavy roles effortlessly by lowering can supply the bearings to a printing device, or a printed roll by lifting the storage of the Can take printing device.

With regard to the bearings, a construction is conceivable at the bearings due to their own weight in the lowered position remain. However, it offers advantages if the bearings additionally in the lowered position are lockable. This ensures a defined Position of the bearings, even if in these no matter located. When using levers to operate the Bearings can be the locking of the bearings in the lowered position realized, for example, thereby be that lever in their raised accordingly Condition locked or locked.

Both for the last mentioned locking the Bearings in their lowered position as well as for Inventively provided locking the bearings in its raised position, it is advantageous if this at least one biased in the closed position Locking element is provided, which is one of the Has locking position away facing bevel. This design allows one to be used for the movement of the Bearings provided actuator, for example a lever, starting from an unlocked position a movement in the direction of the locked position first on the chamfer formed on the locking element meets and the locking element with little effort briefly against acting on the locking element Pressing biasing force in its open position. After this the actuating element on the locking element has passed, snaps the locking element in his closed position back and prevents that Locking element gets out of lock. Prefers is on the side facing the locking position the locking element provided no bevel, so that an unlocking only with an active actuation of the Locking element can be done.

According to a further aspect, the invention relates to a Combination of a printing device with a loading and Discharge device in one of the previously described Embodiments. As can be seen from the previous one Description shows, is the invention and Discharge device with regard to the position of the bearings especially in their lowered position, to the storage adapt to a printing device, so that when loading a Printing device with a roller the role of storage the loading and unloading in a defined way and Way is passed to the storage of the printing device. The correct positioning of the loading and unloading device for this process, for example, by suitable Attacks on the printing device to which the loading and Unloading can be applied done. in this connection is the correct positioning of the roll in lateral Direction, for example, by a stop of the car the side of the printing device, at which the storage of the printing device is designed such that the role is in a defined position in terms of width.

For safe operation of a printing device in Compound with the loading and Discharge device offers advantages when the Printing device in the vicinity of the roller bearing Fuse element having, in a first position Leaving the role prevented. This is especially true that side of the printing device advantageous on the a printed roll is wound up as the roll attaches this page is powered, and it is due to the Winding process can come to forces and moments that act on the role in such a way that at worst emerges from their storage. Essentially, that's at the Printing device provided fuse element such designed that the role that is in storage, pushes against the securing element when it is raised, and is secured against leakage. At the Loading and unloading is the removal of the role required. So in this case the fuse element does not constitute a hindrance, this is so designed and attached to the printing device such that the Inventive loading and unloading the Move the fuse element away during loading and unloading That may have a role in the storage of the printing device can be inserted or removed from this.

Preferably, in this case, the securing element is pivotable designed so that it when retracting the car like this is pivoted that the removal or the delivery of the Role is no longer hindered. As soon as the Inventive loading and unloading of the Pressure device is removed, that pivots Retaining element back and secures the role against unwanted leakage of the same.

Brief description of the drawings

Fig. 1

die erfindungsgemäße Be- und Entladevorrichtung in einer perspektivischen Ansicht;

Fig. 2

die erfindungsgemäße Be- und Entladevorrichtung in einer Vorderansicht;

Fig. 3

die erfindungsgemäße Be- und Entladevorrichtung zusammen mit einer darin gelagerten Rolle und der Rollenlagerung einer Druckvorrichtung; und

Fig. 4

eine Seitenansicht der erfindungsgemäßen Be- und Entladevorrichtung zusammen mit einem Teil einer Druckvorrichtung.

The invention will be explained in more detail with reference to an embodiment shown by way of example in the drawings. Show it:

Fig. 1

the loading and unloading device according to the invention in a perspective view;

Fig. 2

the loading and unloading device according to the invention in a front view;

Fig. 3

the loading and unloading device according to the invention together with a roller mounted therein and the roller bearing of a printing device; and

Fig. 4

a side view of the loading and unloading device according to the invention together with a part of a printing device.

Detailed description of the preferred Embodiment of the invention

As can be seen in Fig. 1, the invention is Beund Discharge device 10 substantially as a means Rolls 12 movable carriage formed, the one rectangular base frame 14 has. On the base frame are for a respective bearings 16 mounted in the one Roller with two lateral ends can be inserted. The Bearings 16 each have a recess in which the role can be inserted by means of their lateral bearing mandrels. The two bearings 16 are rotatable in bearing blocks 18 mounted, which are fixedly attached to the frame 14. The Storage takes place in each case by means of rotary axes 20. Die Actuation of the two bearings 16 is by means of a separate lever 22 for each of the two bearings 16 accomplished. Due to the fact that the lever has a considerable length with respect to the axis of rotation 20, and the end of the lever from the rotation axis 20 significantly further is spaced as the storage 16, a single Operator due to the large lever arm of the lever too Lift heavy rollers without further ado. This is done starting from the position of the bearings 16 shown in Fig. 1 by the movement of the lever 22 down, so that Accordingly, the storage 16 moves upward. A such operation is for example in the unloading a printed roll of material from the printing device required.

More specifically, in the embodiment shown, each of the both levers 22 moved separately from each other. By suitable Locking elements 24, the more accurate below can be described, each of the two levers 22 in the raised position of the storage 16 are locked. After thus first the storage of the one and subsequently the storage of the other side was raised, so that the Roll in succession from the storage of the printing device has been raised, the role with the invention Beund Discharge device in the raised state of the bearings discharged from the printing device and to any To be moved. For this purpose is at the shown embodiment of the loading and Discharge device, a handle 26 is provided by means of which a single operator the invention and Unloading device can move. In an advantageous way At least two of the rollers 12 can be made pivotable be, so that the invention and Turn discharger in any direction and to proceed.

Finally, it should be noted that in the shown Embodiment of a loading and unloading device 10 also for the position in which the bearings are lowered State, locking devices 28 are provided are. In the position shown in Fig. 1 are the Locking devices, however, not yet on the Locking devices 28 also moved out, with others Words have not been swung up far enough to locked by these locking devices 28 or to be locked. Between the two Locking positions, ie the position below the Locking element 24 and the position above the Locking element 28, the two levers are each in a square tube with a slot. The Locking elements 24, 28 are in the closed Biased position.

In Fig. 2 it can be seen that the locking elements in Advantageously, each one in the direction of Have unlocking facing chamfer 30. This allows the respective lever 22, for example its raised position shown in Figs. 1 and 2, in the the storage is lowered, to be moved down, taking as soon as he touches bevel 30 of the Locking element 24 meets, this in the open Position presses and can pass him by. As soon as this happened, the locking element 24 snaps back and prevented in particular by the on this page not Beveled training an unintentional unlocking of respective levers. When storage starting from the raised position is to be lowered, so that can Locking element in each case on both sides in succession be moved laterally by an actuating pin 32, so that the lever can move up and the Storage is lowered. As a result, for example, a new roll with roll material to a printing device be handed over. The locking elements of the upper Locking devices 28 are similar designed so that the levers after lowering the bearings locked in a defined, upper position can.

In Fig. 3 is in addition to recognize how the inventive Loading and unloading device 10 with the roller bearing 38 a Pressure device cooperates. In Fig. 3 is a roller 34th indicated to the roller bearing 38 a Printing device is to pass. The roller 34 can For example, by means of a crane whose traction means in Crane eyelets 36 are suspended, in the invention Be and Unloading device are inserted. By means of Loading and unloading device according to the invention becomes the role to the arranged in Fig. 3 position on the roller bearing 38 a printing device procedure. Here is the role 34 characterized in that a stopper 40 of the invention Beund Discharge device on a section of Printing device is placed in a defined Position moves. By another stop, which the Position of the loading and unloading device according to the invention in determines the direction of travel, the position of the role 34 defined in this direction.

Once the required position is reached, the Roller 34 by lowering the two bearings 16, which by the actuation of the two levers 22 takes place in the in Fig. 3rd shown position. In this position is a side of the roller 34 provided wheel 42 in the Roller bearing 38 of the printing device is inserted and located thus in a defined position. In particular, can the position in the lateral direction can be defined by that the roller bearing 38 of the printing device rollers having a groove into which the comparatively narrow lateral rollers 42 of the Material roll 34 are used. As mentioned, the two levers 22 relative to the position shown in Fig. 3 to be raised even further so that they pass through the top Locking devices 28 in an upper position being held. This also ensures in the case that the weight of the lever 22, the storage 16 by rotation would lift around the pivot point 20 as soon as the roll to the Printing device was handed over that storage each remains in its lowered position and, for example starting from this position a printed roll of the Can discharge the printing device.

In Fig. 4 is a measure on a printing device shown by the loading and Unloading device is loaded and unloaded, which measure in Advantageous for a backup of the inserted role ensures and at the same time the loading and unloading with the help of Inventive loading and unloading device 10 not with special needs. In that area of the printing device, in which the roller bearing 38 is provided is a Securing element 44 pivotable about an axis 46 on the Printing device provided. The securing element 44 is located with respect to the axial direction of the roller 34th (ie the direction perpendicular to the plane of Fig. 4) above the lateral storage roll 42 of the roll of material 34. This means that the security element in his Working position such above the roller 42 is that the latter can not escape their storage. The Working position of the fuse element 44 results relative to the position shown in Fig. 4 by a slight pivoting in the clockwise direction.

4, that position of the securing element 44th shown in a section of the car in which shown Case a bearing block 18, the securing element 44 by a Engaging with an actuating portion 48 of the Has fuse element 44 pivoted. This pivoting is required for loading and unloading Roll of material 34 by the loading and Discharge device 10 is not hindered. Essentially abuts the bearing block 18 when retracting the Loading and unloading device according to the invention on the Actuator 48 and pivots the Securing element 44 a little to the rear (according to FIG. 4 after right). In this position, the securing element 44 is a Leakage of the roller 34 from the storage 38 no longer impeded, so removed the role, or a new role can be supplied. For example, once a new role passed to the roller bearing 38 of the printing device and the loading and unloading device 10 has been removed, pivots the securing element 44 due to its own weight back, and a portion of the fuse element 44 is located so above the lateral roller 42 of the Material roll 34 that this can not escape unintentionally. Overall, this is a safe and easy at the same time constructed loading and unloading device in combination with a customized printing device provided by the in Loading and unloading of heavy material rolls by one only person is allowed.

Claims (6)

1. Loading and unloading device (10) for reeled material, designed in the form of a carriage which can be moved by a single operator and which has a bearing (16) for each of the two ends of a reel (34), it being possible to raise and lower the bearings (16), which can be locked at least in the raised position, characterised in that the bearings (16) can be raised and lowered separately from one another and can be moved by a single operator.
2. Loading and unloading device as claimed in claim 1, characterised in that each of the bearings (16) is operable by means of a lever (22).
3. Loading and unloading device as claimed in at least one of the preceding claims, characterised in that the bearings (16) can additionally be locked in the lowered position.
4. Loading and unloading device as claimed in at least one of the preceding claims, characterised in that at least one locking element (24, 28) pre-biassed into the closed position is provided, which has an oblique surface (30) pointing away from the locking position.
5. Combination of a printer with a loading and unloading device as claimed in at least one of the preceding claims, characterised in that the printer has a safety element (44) in the region of its reel bearings (38), which prevents the reel (34) from falling out and can be moved by the loading and unloading device (10) during the loading and unloading operation so that a reel (34) can be introduced and taken out.
6. Combination of a printer with a loading and unloading device as claimed in claim 5, characterised in that the safety element (44) is pivotable.

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