EP0584056B1 - Container for welding wire - Google Patents

Description

The invention relates to a container for receiving and / or for transporting and / or for providing welding wire, in particular for automatic welding machines, comprising essentially a receiver for a tubular wire winding and an annular disk-shaped cover part lying on its top layer and possibly pressing it through its central opening when the wire is provided, it is pulled off.

From US-A-3125312 a wire container is known which has holding elements for a wire winding which are pressed in by recesses in the container wall by means of spring elements.

Furthermore, FR-A-1277352 discloses a wire winding holder with an integrated central upper opening part formed by the holder.

A multi-part container for inserting wire from a pulling device or the like to form a coil is known from US-A-3014577.

Finally, DE 1199180 is concerned with a support frame for material wound up in roll form from essentially vertically arranged struts which are combined at the head end and merge into a support part at the lower end. This support frame is designed in this way and is intended to accommodate a plurality of rollers, the support frames being designed to be stackable.

Containers of the type mentioned at the outset are known in practice, for example under the Naman Marathon Pac, and, like large coils, serve to provide welding wire, in particular for automatic welding stations. Such containers essentially comprise a pickup for a wire winding, which is created with a special winding technique for a later twist-free wire removal, and means for loop-free provision or discharge of the wire. All such containers (US-A-2572108, DE-A 3221933, DE-A-3151803) have the disadvantage in common that they do not allow easy stock checks and after emptying, either what has a negative impact on the environment must be disposed of, or the same storage or delivery volume must be collected for replenishment and sent back to the wire manufacturer, which results in high transport costs. Another disadvantage is that the means for loop-free provision are not always effective with the required security, which can result in wire kinks that result in the automatic welding machine being switched off. In order to achieve a loop-free wire discharge from the container, attempts have already been made (US-A-2752108) to arrange a telescopically extendable inner tube with a flange and to pull the wire over the flange through a ring which is exposed on or in this. Furthermore, it is known from DE-A-3151803 to arrange a holding member with a central opening through which the welding wire is drawn, on the uppermost layer of the wire winding, the holding member, which can be lowered by gravity, having resilient parts on the outer circumference, which are in contact with the inner surface of the container. Because an intermediate space is formed between this and the container wall when such a holding member is used, wire loops can rise or penetrate into the gap in spite of resilient parts and disadvantageously hinder or block a wire discharge.

Here, the invention seeks to remedy the problem and aims to create a new, improved container for wire coils, in which the supply can be easily determined and / or with which, after emptying, volume-saving stacking is possible. It is also an object of the invention to eliminate the disadvantages of the known holding members for controlling the wire discharge from the container and to create a newly formed cover part for easy, safe wire removal. Finally, on the other hand, the invention is also based on the object of specifying a particularly advantageous container consisting of a receiver and cover part, which advantageously cooperate.

These objectives are achieved in a container of the type mentioned at the outset in that the receiver has a base part, a holding or supporting part which is substantially perpendicular to it or is inclined at the same angle, at least the holding or supporting part comprising at least three, preferably four to eight, rod-shaped elements or profiles is formed, the transverse direction of the holding or supporting part enclose a circle that is the same size or larger than the largest outer diameter of the wire winding and that in the transducer after the discharge of the wire winding at least one additional transducer at least partially Reducing the sum of the external volumes, seen in the axial direction, can be introduced rotated.

The advantages achieved by the invention are, in particular, that empty containers can be stacked or inserted into one another, the rod-shaped elements of the supporting parts being arranged next to one another in height only by the thickness of the base parts. With a planned return transport for refilling the containers, a decisive reduction in the storage and transport volume can be achieved. It is important that the wire winding is held centrally on its outer surface by at least three rod-shaped elements, with thin welding wires a higher minimum number of elements may be required.

A particularly stable embodiment of the container with a small thickness of the base part is achieved if the rod-shaped elements of the support part in the base part of the transducer continue at least partially essentially radially and are optionally connected to one another by a central plate, the connection being radially displaceable and / or fixable and can be accomplished by a central plate.

If, as is also provided in a favorable manner, the upper ends of the rod-shaped elements of the holding or supporting part are connected in the transverse direction thereof to an upper edge part, which is essentially annular, large areas for the easy engagement of transport means or hooks of hoists become created for the safe and easy transportation of the containers.

In order to achieve stackability and to obtain advantageous holders when transporting the container, it can be provided that the inside diameter of the upper annular edge part or edge ring is the same is large or larger than the diameter of the circle circumscribing the holding or supporting part.

If, according to a further preferred form, the height of the base part is substantially equal to that of the edge ring, stable stacks of containers with a low height are achieved.

In order to enable a low voltage through lid or cover parts, in particular for a disintegration-free transport of the wire coils in the container, it can be advantageous if the bottom part has fastening means for anchoring pressure loading devices for the wire coil essentially centrally or centrically symmetrically.

Finally, it is advantageous if, in order to save weight, the rod-shaped elements and, if appropriate, the upper edge ring are formed from tube material.

A further integrated object of the invention is achieved in the generic device in that the annular disk-shaped cover part extends at least partially or in places over the cross section or inside and outside diameter of the wire winding. It is thereby achieved in a favorable manner that wire loops, in particular between the wall of the container or the receiver and the holding member or cover part, are held down by the latter and guided on the upper end face of the wire winding, whereby a safe wire discharge is made possible.

It has been found to be particularly advantageous if the annular disk-shaped cover part has at least three recesses in the region of its outer circumference, into which at least parts, in particular supporting parts, of the sensor for the wire winding engage or protrude with play and the cover part in the vertical, the axis of the Wire winding corresponding direction shift or. lowerable, but essentially prevented from twisting and a lateral displacement exposing an upper outer and / or inner edge of the wire winding.

If, according to a further preferred embodiment, the breakthrough of the Cover part is widening or enlarging downward, rounded and has a largest diameter that is equal to or preferably smaller than the inside diameter of the wire winding, so low pulling forces can be achieved for the welding wire, which pulling forces are further reduced if the radius of the curve the opening corresponds essentially to the height of the cover part.

In terms of providing the welding wire with constant parameters or tensile forces during the unwinding process, irrespective of the respective winding size or supply quantity, which is particularly important for highly sensitive automatic welding machines, it has also proven to be advantageous if the cover part subsequently breaks through in the pull-off direction the wire is followed by a trumpet-shaped narrowing wire guide or the cover part interacts with such a guide functionally

If necessary, external protection of the entire wire winding can be achieved if the holding or supporting part is formed by a cylindrical tube or a drum wall on which profile elements for holding or supporting the wire winding and for guiding the cover part are arranged in the axial direction of the wire winding.

The advantages achieved are essentially to be seen in the fact that in the interaction of the holding or supporting part according to the invention and the same covering part, a particularly favorable embodiment of a container for all types of welding wires which meets the requirements and objectives as far as possible is achieved.

In the following, the invention will be explained in more detail with reference to schematic drawings, which only show execution methods.

Fig. 1

einen Aufnehmer für einen Drahtwickel in Ansicht

Fig. 2 und 3

vertikale Teilschnitte im Bereich des oberen Randteiles

Fig. 4

einen vertikalen Teilschnitt im Bereich eines Bodenteiles

Fig. 5

einen vertikalen Teilschnitt im Bereich eines Abdeckteiles

Fig. 6

einen horizontalen Teilschnitt und Draufsicht im Bereich eines stangenförmigen Elementes vom Stützteil

Fig.7

ein Behältnis in Ansicht

Fig.8

einen horizontalen Schnitt

Fig. 9

einen vertikalen Teilschnitt im Bereich eines Abdeckteiles

Fi. 10

einen horizontalen Teilschnitt durch ein trommelförmiges Behältnis

Show it

Fig. 1

a sensor for a wire winding in view

2 and 3

vertical partial cuts in the area of the upper edge part

Fig. 4

a vertical partial section in the area of a bottom part

Fig. 5

a vertical partial section in the area of a cover part

Fig. 6

a horizontal partial section and top view in the region of a rod-shaped element from the support part

Fig. 7

a container in view

Fig. 8

a horizontal cut

Fig. 9

a vertical partial section in the area of a cover part

Fi. 10th

a horizontal partial section through a drum-shaped container

1 shows a container for the provision of welding wire in the simplest version, the sensor 1 for the wire winding 6 having a holding or supporting part 3 with four rod-shaped elements 31. The rod-shaped elements 31 are continued radially in the bottom part 2 of the transducer 1 as elements 21 on which the wire winding rests. The uppermost layer of the wire winding 6 is held down by an annular disk-shaped cover part 5 and the welding wire 63 is discharged through a central opening in the cover 5.
2 shows the upper region of a sensor 1 for a wire winding 6, in which the rod-shaped elements 1 of the holding part 3 are combined in an upper edge part 4, which is designed as a ring 41.

In the schematic representation in FIG. 3, the upper edge part 4 is formed by a rectangular cowl 41, to which the rod-shaped elements 31 are connected via spacers 42. After complete removal of welding wire 63 and by dissolving the wire winding 6, the cover part 5 rests on the bottom part 2 of the container and a further container can be easily inserted from above with the same axis, rotated around the diameter of the rod-shaped element 31. If, as shown in FIG. 4, the thickness H2 of the base plate 2 is made equal to that H4 of the ring 41 from the upper edge part 4 of the sensor 1, there are two contact surfaces when stacking and good stability is achieved. In this case, the cover part 5 can be fixed during stacking by further geometrical coordination and be protected against damage during transport. Simple fastening means 23 in the base part 2 serve to stabilize the wire winding 6 during transport, for example by means of it the cover part 5 resting rod is resiliently held down.

FIG. 5 shows in vertical partial section and FIG. 6 in horizontal partial section an annular disk-shaped cover part 5 which extends circumferentially beyond the inside diameter 62 and outside diameter 61 of the wire winding. In the area of the rod-shaped elements 31 of the holding and supporting part 3 of the pickup 1, recesses 52 on the outer circumference 51 are made in cooperation with the latter in the cover part 5 with a play 54 required for vertical movement.

In FIG. 7, a container according to the invention is shown schematically in an oblique view and in FIG. 8 in plan view, in which in the receiver 1, consisting of a bottom part 2, a holding or supporting part 3 formed by rod-shaped elements 31 with an enlarged upper edge part 4 , a tubular wire coil 6 is positioned, on which there is an annular disk-shaped cover part 5, through the central opening of which the welding wire 63 is provided, projecting beyond the outer diameter 61 and the inner diameter 62 of the wire coil 6.

Fig. 9 shows in partial section a simple device 55 for low tensioning or pressing the cover part 5 on the end of the wire winding 6 to secure the same against disintegration during transport.

In Fig. 10, a closed container with an outer jacket 32 or a drum or tube wall 32 of the holding or supporting part 3 of the transducer 1 is shown schematically in the horizontal partial section. The elements 31 are formed as profiles with the wall 32 and distance from it or support the outer surface of the wire winding. For these elements 31, the cover part 5 has recesses, so that a vertical guide is formed in cooperation therewith.

Claims (13)

1. A container for receiving and/or transporting and/or dispensing of welding wire, in particular for automatic welders, comprising substantially a pick-up (1) for a tubular wire wrapper (6) and a ringdisk-shaped lid part (5) resting on its topmost layer and optionally pressing against it, the wire (63) being withdrawn through the central orifice of the lid part (5) on dispensing, characterised in that the pick-up (1) has a bottom part (2), a holding or supporting part (3) substantially vertically standing or equiangularly inclined thereon, at least the holding or supporting part (3) being composed of at least three, preferably four to eight, rod-shaped elements (31) or profiles enclosing a circle in transverse direction to the holding or supporting part (3), said circle being equal to or greater than the greatest outer diameter (61) of the wire wrapper (6), and that a further pick-up can be inserted turned viewed in axial direction into the pick-up (1) downstream of the outlet of the wire wrapper (6), said further pick-up at least partially reducing the sum of outer volumina.
2. The container according to claim 1, characterized in that the rod-shaped elements (31) of the supporting part (3) are substantially radially at least partially further extending (21) and mutually connected in the bottom part (2) of the pick-up (1), the connection being radially shiftable and/or fixable as well as effected by means of a central plate (22).
3. The container according to any one of the claims 1 or 2, characterised in that the upper ends of the rod-shaped elements (31) of the holding or supporting part (3) are connected in its transverse direction to an upper rim part (4) which is formed substantially ring-shaped (41).
4. The container according to any one of the claims 1 to 3, characterised in that the inner diameter of the upper ring-shaped rim part or rim ring (41) is equal to or greater than the diameter of the circle circumscribing the holding or supporting part (3).
5. The container according to any one of the claims 1 to 4, characterized in that the height (H2) of a central bottom plate (22) of the bottom part (2) is substantially equal to height (H4) of the rim ring (4).
6. The container according to any one of the claims 1 to 5, characterised in that the bottom part (2) is provided internally substantially centrically or central-symmetrically with fastening means (23) for anchoring pressure loading means for the wire wrapper (6).
7. The container according to any one of the claims 1 to 6, characterised in that the rod-shaped elements (31) and optionally the upper rim ring (42) are formed of tubular material.
8. The container according to any one of the claims 1 to 7, characterised in that the ringdisk-shaped lid part (5) peripherally at least partially or in spots projects beyond the cross section or inner (62) or outer (61) diameter of the wire wrapper (6).
9. The container according to any one of the claims 1 to 8, characterised in that the ringdisk-shaped lid part (5) is provided in the region of its outer diameter (51) with at least three recesses (52) into which penetrate or project with play (54) at least parts, in particular supporting parts (31) of the pick-up (3) for the wire wrapper (6) and that the lid part (5) is displaceable or lowerable in vertical direction corresponding to the axis of the wire wrapper (6), but is substantially locked against torsion and lateral shifting exposing an upper outer (61) and/or inner (62) edge of the wire wrapper.
10. The container according to any one of the claims 1 to 6, characterised in that the hole (53) of the lid part (5) is formed rounded and widening and enlarging downwards and has a greatest diameter which is equal to or preferably smaller than the inner diameter (6) of the wire wrapper (6).
11. The container according to any one of the claims 1 to 10, characterised in that the radius of the curvature (53) of the hole substantially corresponds to the height of the lid part (5).
12. The container according to any one of the claims 1 to 11, characterised in that a conically tapering wire guide is provided downstream from the lid part (5) adjacent to its hole in withdrawing direction of the wire (63) or that the lid part (5) functionally cooperates with such a guide.
13. The container according to any one of the claims 1 to 12, characterised in that the holding or supporting part (3) is provided with a cylindrical pipe (32) or a cylindrical wall on which profile elements (31) for holding or supporting the wire wrapper (6) and for guiding the lid part (5) in axial direction of the wire wrapper (6) are provided.

Images