EP1332808B1 - Turning device - Google Patents

Abstract

The turning device (10) for rolls (20) of metal sheet has a table (18) on which to lay the load, which is at least partly bounded by side and/or rear barriers (22, 24). A drive shaft (16) is connected to the table. This shaft runs at an angle relative to the table and at 45-47degrees to the horizontal. its extended axis passes through the table.

Description

Technical area

The invention relates to a turning device for turning heavy loads, especially sheet metal coils and Wire rope reels according to the preamble of claim 1 (see for example US-A-2758725 or US-A-3016158).

In the course of material flow of heavy loads, especially sheet metal coils, it is regularly required such loads from a particular orientation into one to turn other orientation. For example Sheet metal coils, ie metal coils wound into rolls, commonly used in a production process such that their axis is largely horizontal. In a Such alignment is the rolled sheet metal strip of the Coil deducted. Similarly, in the production of sheet metal coils the metal band with a horizontal Orientation of the axis of the coil wound. The Storage, transportation and processing of these Sheet metal coils will work both vertically and horizontally Load axle executed. Accordingly, it is regular required, such Blechcoils of the described Orientation with horizontal axis in alignment with vertical axis, and vice versa. Also for other heavy objects, such as Engine blocks, it is in the course the editing required to apply it.

State of the art

To accomplish the described turning process, are especially for sheet metal coils known as tilting tables. Such a tilting table discloses, for example, the Publication "TECHNICAL DATA SHEET POSITIONERS" by BUSHMAN EQUIPMENT, INC. Such tilting tables have a Support surface or plate on which a Blechcoil for example, with a vertical orientation of its axis can be hung up. The bearing surface is at least one side suitably limited, and the tilting table can be around an axis, usually near those Point runs, at which the bearing surface of the Table and the limit "meet", be tilted. To the tilting process by about 90 ° is the turned Blechcoil with a horizontal orientation of the axis on the boundary of the table. Here, the coil must before tilting be placed on the side of the table that is not with the limitation is provided. After tipping this can Coil to be taken on the opposite side, there the side from which the coil was laid, by the now tilted table is taken. From this results itself, that such tilting tables require a considerable amount of space bring with them, since the traffic areas are so designed need a sheet metal coil from one side to and from the other can be unloaded. This situation can only in a comparatively complex manner be improved. For this purpose, such tilting tables with a rotary device are provided, through which the entire tilting table is rotatable about a vertical axis, so that after tipping the removal from the same side can be done, from which the loading of the tilting table took place.

As an energy-saving modification of such tilting tables, the but also has the problem described, are, for example, also from the above Publication, so-called disk turner known. in this connection The turning does not take place as in the described tilting table about an axis that is at least slightly below the Table is located. The axis about which the turning occurs rather runs above the support surface for the heavy Load. This bearing surface is connected to a contour, the essentially one or more Corresponds to disk segments that stand upright whose Axes thus run horizontally. By a suitable Storage, these disc segments such a be rotated horizontal axis, that hereby the tilting of the provided thereon bearing surface. It remains however the problem that loading and unloading of different Pages must be made, or an additional, elaborate Turning device is required.

From DE 23 28 970 A1 discloses a device for replacement known from metal tape rolls. This device has at least two so-called waves on each one Blechcoil can be plugged. The waves are at one Fixed platform, which is rotatable about an axis, which is around about 45 ° in the room is inclined. In a typical position is one vertical and the other horizontal aligned. As a result, for example, of the Sheet metal coil attached to the horizontally aligned shaft is arranged, the metal strip are peeled off while the vertically aligned shaft with a new sheet metal coil is equipped. When the metal band from the one sheet coil completely stripped, the platform is about 180 ° rotated so that the previously vertically aligned shaft in the position gets in which they are horizontal is aligned, and the metal strip can be removed. However, the device described is not as Turning device usable. In addition, the to the Replacing the coils required forces and moments comparatively high, since the loads in a considerable Distance from the axis of rotation.

From DE 28 42 745 C2, DE 20 41 179 C3, the DE 29 34 439 C2, DE 37 10 449 A1, DE 38 39 814 A1 and US 4,913,370 are similar devices for the Exchanging wire coils known.

Presentation of the invention

The invention is based on the object Turning device for turning heavy loads to create with comparatively small forces and moments a turn thus allows the situation with regard to the required traffic area improved with little effort becomes.

The solution of this task is performed by the turning device according to claim 1.

Consequently, the turning device according to the invention has a Table for placing the load on. Here is determine that the Turning device according to the invention a single table having. On top of this is the load that merely turns and not have to be exchanged for another load, hung up. As will be explained in more detail below, the turning movement is such that the bearing surface of the Table from its original, horizontal orientation after turning into a vertical orientation. If accordingly a Blechcoil with a vertical Alignment of its axis has been placed on the table is it is oriented after turning so that its axis is horizontal. In this position is to support the Turned sheet metal coils down a boundary required. At the table in its initial position, i. with a horizontal orientation of its bearing surface, can this limitation as lateral and / or backward Limitation. This can be laterally around the However, it is completely closed around the table preferably at least partially open so that laying on a sheet metal coil or other, to be used on load the table can be realized as simply as possible. By the subsequently described in more detail turning movement the lateral boundary of a largely vertical Alignment in an orientation in which at least parts of Boundary are oriented horizontally, so they are the supported coil can support.

The drive of the table to carry out the turning movement takes place by means of a drive shaft connected to the table, on the one hand inclined with respect to the table. To the another, the drive shaft runs in the use position tilted the turning device in the room. According to a preferred Embodiment, the inclination of the drive shaft is about 45 °. This means that the turning device is about 180 ° too Turn is a load to be turned from an orientation with vertical axis in an orientation with horizontal To bring axis, and vice versa. Here are the respective Orientations of the table and the attached lateral boundary such that in an advantageous manner the Loading and unloading of the table from substantially the same Side can take place. For example, the lateral Limits at the back as well as one of the two Side edges of the table be executed that a loading is not obstructed from the front. During the Turning movement, the load to be used is always reliable through the support surface of the table itself, the lateral Boundary as well as the back boundary held. To Completion of the rotation is the load with the changed Orientation on the former back border on and can now be found on the page from which already the loading took place. This can be done in Advantageously, the traffic areas significantly reduced be since the turning device according to the invention only from one page must be accessible. This allows the Turning device, for example, in a space-saving way and Be arranged on a wall.

Although previously a preferred embodiment has been described, it should be noted that the invention thereto is not limited. For example, it is easy conceivable that the drive shaft at a different angle than exactly 45 ° inclined in the room. This changes that Extent of the rotational movement as well as the accessibility of the turning load before and after turning. For example However, embodiments conceivable in which the Turning device according to the invention in such a way in a corner of a Space can be arranged, that the loading of the one Page and unloading done from a second page, the offset by an angle of about 90 ° from the first page is. However, this also makes it possible in an advantageous manner with a comparatively simple design Turning device a significant reduction of Reach space requirements.

The drive shaft described here runs in Advantageously, such that the extension of its axis steps through the table. The Orientation of the shaft such that its elongated axis Stepping through the table leads to the significant advantage that this axis at least near the center of gravity of the Table including the load deposited thereon can. As a result, are comparatively low drive torque required, since the moment of inertia of the applied load um the axis of the drive shaft can be kept low. Furthermore, the orientation described is also with regard to the burdens and load changes on the involved Components advantageous.

For the storage of the drive shaft, a sliding bearing according to the invention has proved to be particularly favorable. This camp is on the one hand advantageous in terms of cost. In particular, this is Cost advantage greater than a certain cost disadvantage, the This can be caused by the fact that the drive is a higher Drive torque is required to be in a plain bearing compared to a rolling bearing slightly increased friction compensate. A plain bearing also offers the Advantage that it supports the braking that in certain Phases of the turning process is required. In other words This can reduce the load on the brake devices be that the friction of the plain bearing a certain Braking effect unfolds.

Preferred developments of the invention Turning device are described in the further claims.

As already mentioned above, it is preferred that the Drive shaft by about 45 °, in particular 47 ° with respect to the Horizontal is inclined. This is the table after a Rotation about 180 ° substantially from the same side dischargeable. Accordingly, in this embodiment only a traffic area at the front of the Turning device for both loading and unloading required. The rotation by only about 180 °, despite the increased inclination of about 47 ° with respect to the horizontal, leads to the following advantage. If the rotation is only 180 ° takes place, the contact surface of the table is relative to the Vertical slightly tilted backwards. This can be a Load can be reliably supported without the danger is that she tilts forward. This is especially for so-called split rings or slit strips helpful in which it is essentially cut open coils is. Once these split rings or split bands singled are, with an exactly vertical orientation of the Bearing surface of the table the risk that individual Tilt split rings or slit strips forward. This is only possible by a comparatively complicated locking device, with which the rings or bands are clamped on the table be prevented. This measure may be at the saved preferred embodiment described, by an inclination of more than 45 °, in particular about 47 ° takes place, and in the turning movement, a rotation about only about 180 ° is performed.

For driving the turning device according to the invention has the use of a cycloid gear is advantageous proved. Such a transmission is both robust and on the other hand extremely space-saving. Furthermore, it can be in advantageously flanged directly to the drive become. For the cycloidal transmission is preferred that it is a Has oil bath, so that it operated largely maintenance-free can be.

For limiting the turning movement is off For safety reasons provided at least one stop.

For the attack can be provided in a particularly simple manner will be that there is a single stop coming from two different sides are approached to the Limit each turn.

To the safety of the turning device according to the invention ensure a limit switch is preferably provided, the upon reaching a defined end position for a Shutdown of the drive ensures.

For the limit switch is finally preferred that in This is a safety switch integrated in the can be used advantageously to the danger a squeezing between individual components of the Turning device and the existing stops too prevent.

Brief description of the drawings

Fig. 1

eine perspektivische Ansicht der erfindungsgemäßen Wendevorrichtung in einer Ausgangsposition;

Fig. 2

eine perspektivische Ansicht der erfindungsgemäßen Wendevorrichtung in einer Mittelposition;

Fig. 3

eine Vorderansicht der erfindungsgemäßen Wendevorrichtung in einer Endposition; und

Fig. 4

eine Seitenansicht der erfindungsgemäßen Wendevorrichtung in der Endposition.

Hereinafter, an embodiment of the invention shown by way of example in the drawings will be explained in more detail.
Show it:

Fig. 1

a perspective view of the turning device according to the invention in a starting position;

Fig. 2

a perspective view of the turning device according to the invention in a central position;

Fig. 3

a front view of the turning device according to the invention in an end position; and

Fig. 4

a side view of the turning device according to the invention in the final position.

Detailed description of an embodiment of the invention

In Fig. 1 is an embodiment of the Turning device 10 according to the invention shown. These has a base 12 indicated in the form of a pyramid, at, as explained in more detail below, a schematically illustrated stop 14 may be present which can additionally be used as a support, however is not essential. At the base 12 is a Drive shaft 16 in the example shown under a Angle of approximately 45 ° in the space inclined rotatably provided. The Drive shaft 16 is fixed to the underside of a table 18th connected to the in the case shown a sheet metal coil 20th is up. This can be applied from the front done, which is the one side on which the stopper 14 is provided. At the table are a rear boundary 22 and a lateral boundary 24 provided. These hinder, as mentioned, the hanging up of the Blechcoils 20 not, because the front is released. At the The upper end of the borders can also be narrow top cover be present only in the Area of the upper ends of the boundary 22, 24 and 26 (see. Fig. 3). The turning of the sheet metal coil 20 is carried out by a rotation of the drive shaft 16 and the table 18 together with the load applied thereto in the form of the sheet metal coil 20 in Direction of clockwise when the device of the Front side is considered.

In Fig. 2, a position is shown, which after a Rotation is achieved by about 90 °. The bearing surface of the Table 18 becomes in a clockwise direction, as it were turned away to the rear and placed vertically. The formerly lateral boundary 24 is rotated forward and from its former vertical orientation to a flatter one Orientation brought. Finally, the former back Limitation 22 turned to the side in this first step and also gets into a shallower orientation. The Holding the applied sheet metal coil 20 takes place during the Movement through the inclined table 18 in cooperation with the boundaries 22 and 24.

In Fig. 3, the end position is shown, which is achieved when the table with the load in the form of the Blechcoils 20 was rotated 180 °. As better in Fig. 4 too recognize, the table 18 is in a largely vertical Alignment. The former lateral boundary 24 has moves to the other side of the device. The former Rear boundary 22 is at a lower limit has become largely horizontal and the Blechcoil 20 supported down. As in Fig. 3 clearly can be seen, the boundary 22 is so inclined executed that the sheet metal coil 20 also in lateral Directions can not fall out. The inclination of the Limit 22, which is in the end position shown in FIG. 3rd yields, the sheet metal coil 20 always in the direction of the other Limit 24 roll.

With reference to Fig. 3, which is a front view is clearly visible that the turned sheet metal coil 20 in turn can be removed from the front. It It is understood that the turning process is also in the reverse Direction can be done. In other words, in the in Fig. 3 position shown a sheet metal coil 20 or another Load between the limits 22 and 24 are inserted, and subsequently by the reverse movement, ie opposite in the clockwise direction, in the position shown in Fig. 1 to be brought. In this position it is easy also removable from the front. By doing In the case shown, the two boundaries 22, 24 by a third, shorter and obliquely arranged boundary 26 connected. It goes without saying in the light of the preceding one Versions that the limits 22, 24 and 26 also in can be designed differently, as long as in the Position according to FIG. 1 does not hinder the loading or unloading and in all intermediate and final positions of the Move the sheet metal coil 20 securely held in the device becomes.

From the illustrations of Figs. 1 and 2 is supplementary recognizable that the sheet metal coil could fall out when the Movement in a certain direction is exceeded. For example, if the turning device from the in Fig. 1 shown position is moved counterclockwise, if the table 18 were inclined away from the boundaries 22 and 24, and the sheet metal coil 20 could slide down. Furthermore, the Table 18 can be tilted forward when the movement from the position shown in Fig. 3 in the direction of Continues clockwise.

Such dangerous situations are caused by the attack 14 prevents its function more clearly from FIG. 4 evident. In Fig. 4 are complementary stabilizing sheets 28, for example, at the bottom of the table 18 shown. Further, for the limit 22 stop elements 30th shown, which cooperate with the stop 14. These Stop elements 30 extend in the in Figs. 3 and 4 shown by the boundary 22 in the direction of Stop 14 so that the movement is stopped as soon as possible this stop is reached. A similar stop element 32 is at the bottom of the table, in particular at the Reinforcing plates 28, provided. When the table accordingly reaches the position shown in Fig. 1, extends from the bottom of the table 18 the Stop element 32 in the direction of the stop 14 and ensures also here for a termination of the movement and a shutdown the device to avoid dangerous situations.

In the illustration of Fig. 4 is additionally schematically a Drive motor 34 and a cycloid gear 36 shown that is combined with a spur gear 38, for the Drive the drive shaft 16 and attached thereto Table 18 may be provided.

Claims (7)

1. Turning device (10) for turning heavy loads, in particular sheet metal coils (20), with:

   a bench for placing the load (20) on, provided at least partially with lateral and/or rear delimitations (22, 24, 26) and

   a drive shaft (16), connected to the bench (18), running inclined in respect of the bench (18) and in the space, the lengthened axis of which goes through the bench (18),

   characterised in that the drive shaft (16) is held in a sliding bearing.
2. Turning device (10) according to claim 1, characterised in that the drive shaft (16) is inclined by approximately 45°, in particular 47°, in respect of the horizontal, so the bench (18) can be loaded and unloaded substantially from the same side after a rotation about approximately 180°.
3. Turning device (10) according to one of the preceding claims, characterised in that it has a drive (34) and a cycloid gear (36) for driving the drive shaft (16).
4. Turning device (10) according to one of the preceding claims, characterised in that it has at least one limit stop (14) for delimiting the turning movement.
5. Turning device (10) according to claim 4, characterised in that the limit stop (14) is approached from two different sides.
6. Turning device (10) according to one of the preceding claims, characterised in that it has a limit switch.
7. Turning device (10) according claim to 6, characterised in that a safety switch is integrated into the limit switch.

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