SE467250B - DEVICE FOR HANDLING A HEAVY TRAY ROLLER OF METAL WIRE SPECIFICALLY INTENDED FOR PACKAGING OF MASSABLE - Google Patents

Abstract

The invention relates to a device for unwinding metal packing wire from a vertical supply roller which at its upper end supports an unreeling crown. This sits on the same post 34 as the roller. At the upper end of the post there is a locking device having tilt-in and tilt-out locking arms 48,50, which in tilted-out position prevent the crown being inadvertently pulled from the post if the wire jams in the crown.

Description

These and other details and advantages characteristic of the invention are explained in more detail with reference to the accompanying drawings which show a suitable embodiment of the device according to the invention.

Fig. 1 is a perspective view of a reeling crown in the form of a double-conical wire basket with four guide arms at the top and bottom.

Fig. 2 is a front view of the device according to the invention with a stand which supports a center post which by means of hydraulic cylinders or compressed air cylinders is pivotable between a horizontal and a vertical end position. wherein the wire roll and the crown are indicated by dotted lines on the post, which are in their folded-up vertical position.

Fig. 3 is a schematic side view showing how a horizontal wire roll is inserted on the horizontal center post, after which it is pivoted up to a vertical position.

Fig. 4 is a schematic top view with the post in vertical position.

Fig. 5 is a separate top view of the post in vertical position on an enlarged scale and provided with a locking device in the device according to the invention.

As shown in Fig. 2, a center post 10 is supported by a transverse bottom portion 12, which at the ends has vertical pivot arms 14 (Fig. 3) pivotally mounted at their upper ends on two coaxial horizontal shafts 16 supported by two side portions 18 of the frame.

On the bottom part 12 there is a bottom ring 20 which forms the base for a vertical wire roll 22 with packaging wire 24 which is to be unwound by the wire being pulled upwards and wound by turns after VBIV. To guide the wire during unwinding, a unwinding crown 26 is mounted on the post and rests on the upper end of the roller 22. The crown has the design shown in Fig. 1 and is provided with four upper guide arms 28 and four lower guide arms 30. The post 10 consists of a square tube 32 with four diagonally aligned longitudinal flanges 34 at the corners to form four longitudinal guide grooves 36. When the roller 22 is inserted on the post 10, the arms 28 are guided in the guide grooves 36 between the flanges to prevent rotation of the roller during the unwinding.

The crown has a double conical shape and is designed as a wire basket with an outer ring 40 which guides the wire during unwinding. In addition, there are elastic hose pieces which form outwardly directed arms 42, which the wire must bend away during unwinding. Thereby a certain braking is achieved to avoid the formation of kinks on the wire.

Fig. 3 shows the post 10 lowered to the horizontal position with dotted lines, where a horizontal wire roll 22A is supported by a fork 45A of a forklift, a so-called center skewer 45B of a forklift or by means of a strap 45C which is inserted through the center barrel of the roll and is connected to a lifting line, which can be suspended in a forklift or a traverse. The horizontal roller 22a is held at the height of the horizontal post 10 and inserted thereon. Then, the reeling crown 26 is inserted on the horizontal post.

The pivot shafts 16 of the arms 14 form a pivot axis which extends substantially through the center of gravity of the heavy wire roll 22 as shown in Fig. 3, which means that a relatively small force is required to pivot up the post with the heavy roll and the relatively light wire crown. from the horizontal position to the vertical position by means of the hydraulic or compressed air cylinders 44 which can thus be dimensioned relatively small for carrying out the swing-up.

Claims (1)

1. 0 15 20 25 30 PâtêflÉKIâV Device for handling a heavy wire roll (22,22A) of metal wire, in particular for packing pulp bales, the tree roll being moved to a unwinding position on a vertical center post (10), wherein a separate unwinding crown (26) is intended to rest on the upper end of the roll to guide the wire during unwinding, the wire roll (22A) being transported by a lifting device in a horizontal position up to in the vicinity of a center post pivotable about a horizontal axis (16) (10), which is in a horizontal end position, and the horizontal wire roll (22) is moved horizontally into the post to an inner position thereof, and the unwinding crown (26) is inserted on the post, after which the post is pivoted up to a vertical end position, where the roller (22) assumes its working position for unwinding with the participation of the crown, characterized in that the device consists of a stand with two mutually separated side parts (18), that on the side parts are mounted t about a horizontal axis (16) pivotable arms (14) which are pivotally mounted at their upper ends and which at their lower ends are connected by a transverse bottom part (12) against which the bottom end of the wire roll is intended to abut, that the center post is fixedly connected to the center of the bottom part, that the post (10) in its horizontal end position (Fig. 3) is located at such a height above the floor on which the stand is set up that a wire roll (22A) in a horizontal position can be inserted on the chair - the pin, after which a reeling crown (26) is also slidable on the post, the horizontal pivot axis (16) of the post extending substantially through the center of gravity of the thread roll (Fig. 3) and that the side parts with the bottom part and the post can be actuated by means of hydraulic or air cylinders for pivoting between the horizontal and vertical end positions of the post.