DE4215822A1 - Mfr. of single and multiple layered lubricated steel ropes - with individually lubricated wires and surplus lubricant removed - Google Patents

Abstract

The method for producing lubricated steel ropes includes the following steps; a) wires (1) - including a core (2) - are lubricated in locations corresponding to their subsequent position in the rope; b) the braided rope (10) is sized in a cheek plate (9) where some of the superfluous lubricant is removed; c) further removal of the lubricant takes place in a rotor (12) and flyers (14) surrounded by splash walls, was well as in strippers (11). Each wire is provided with a separate lubricating device, or alternatively a common lubricating device (8) for all wires is foreseen. The splash walls surrounding the rotor (12) and the flyers (14) are heated. USE/ADVANTAGE - In steel rope manufacture. It allows all wires in the rope to be covered with lubricant, and at the same time ensures that the ropemaking equipment is not unduly contaminated with lubricant.

Description

The invention relates to a method and a device for the production of single and multi-layer lubricated steel wire strands, where the individual wires from arranged stationary outside the stranding device Drainage systems subtracted and according to the indirect double twist principle be stranded.

The most common form of manufacturing Lubricated steel wire strands is the stranding of Wires on tube stranding machines where any Lubrication device in the area of the stranding point between Stranding machine and stationary rewinder is arranged.

The disadvantage of these machines is that productivity mainly due to the speed of the elongated stranding rotors is determined which is currently their technological Have reached border areas, d. H. another Increased speed and thus increased performance of the Fast stranding machines is no longer possible. Furthermore, it is considered disadvantageous that here a complex lubrication of the finished stranding structure takes place without guarantee that every single wire, including the soul, fully with lubricant is wetted.

As an alternative there is a double twist stranding machine (out-in), with which higher stranding speeds can be achieved according to the patent EP 0289 884 the stranded wire before reaching the rotating one Systems with deduction and rewinder in their exact geometric Form is finished and the actual double twist stranding machine "only" to maintain the strand geometry and provided for winding the finished strand is.  

The disadvantage here, however, is that this method and Device in the present form is not suitable to produce lubricated steel wire strands because of the lubrication would take place before the actual stranding process and thus the entire stranding device, especially when used highly viscous lubricants of a large Pollution would be exposed, which in extreme cases Disturbance of the stranding process.

The invention specified in claims 1 and 5 lies the problem underlying a method and an apparatus for the production of single and multi-layer lubricated steel wire strands using the highly productive indirect To develop double twist principle (out-in), whereby special emphasis on comprehensive wetting of all Wires with lubricant and the highest possible prevention the degree of contamination of important machine parts of the stranding machine is to be laid.

The advantages achieved with the invention are in particular in that the lubricant is targeted to soul and every single wire is applied before stranding can, due to the special arrangement of the rotating press jaw, Overturning rotor and one or more scrapers unnecessary lubricant due to press jaws, centrifugal force of the overturning rotor and wiper which is therefore largely unnecessary Lubricant freed finished strand in the double twist stranding machine can be carried out in areas with large centrifugal forces, i.e. H. in the Areas of the deflections on the flyer, by means of enclosing the flyer Bulkheads from contamination by im subsequently protected lubricant is protected and thus the highly productive indirect double twist principle for lubricated steel wire strands can come.  

Advantageous embodiments of the invention are in the associated subclaims specified, with the targeted removal of the detached lubricant all Bulkheads can be heated depending on the lubricant used are and the individual facilities, such as rotating Press jaws, overturning rotor and double twist stranding machine, with heatable return devices for the lubricant in the form of collecting trays and returns provided for return to the receptacle are.

Embodiments of the invention are in the drawing are shown and are described in more detail below.

It shows

Fig. 1: The preferred embodiment of the device using the example of a 3-ply strand

Fig. 2: sectional view of a rotating press jaw

Fig. 3: sectional view of an overturning rotor

Fig. 4: Another embodiment using the example of a 2-ply strand.

Gem. Fig. 1, 2 and 3, the preferred embodiment of the apparatus for manufacturing single and not illustrated multilayered steel wire strands made of any outside the stranding device arranged drainage system, from which the individual wires 1, including the core 2 according to the indirect Double twist stranding principle stranded in layers in successively arranged stranding sections and take-off 4 and rewinder 5 arranged within a rotating system in the form of a double twist stranding machine 3 .

Since the number of stranding sections corresponds to the number of layers to be stranded, each stranding section is assigned a known guide element 6 according to EP 0289 884 for the exact guidance of the wires 1 in the respective stranding point 7 , in the immediate area of which a lubricating device 8 is also arranged.

In the present case, the lubricant is sprayed onto the wires 1 , including the core 2 . However, it goes without saying that other known lubrication methods can be used.

Following the guide elements 6 , a rotating press jaw 9 is arranged for calibrating the steel wire strand 10 and at the same time for removing unnecessary lubricant.

Furthermore, the rotating press jaw 9 is followed by a known wiper 11 for unnecessary lubricant, through which the steel wire strand 10 is passed. This scraper 11 can have a wide variety of embodiments. Brushes or appropriately pierced felt or rubber sheets are conceivable.

Furthermore, an overturning rotor 12 , in which excess lubricant still adhering to it is thrown off, is arranged in the production direction.

After the steel wire strand 10 has left the overturning rotor 12 , it is finished in its overall structure. This finished strand 13 is now passed through a further stripper 11 through to the arranged in the Doppelschlagverseilmaschine 3 hood 4 with rewinder 5, wherein the finished strand 13 is obtained within the Doppelschlagverseilmaschine 3 "only" in its basic structure, and thus does not undergo any further deformation .

In the area of the flyer 14 of the double-twist stranding machine 3 , ie in the area of the deflection points with high centrifugal forces, spray walls 15 are arranged, through which the thrown off lubricant is collected and discharged. The same applies to both the rotating press jaw 9 and the overturning rotor 12 , since both devices are also surrounded by so-called splash walls 15 .

All the spray walls 15 are provided with heating elements 16 which, if necessary, heat the spray walls 15 in order to facilitate or implement the drainage of collected, in particular highly viscous, lubricant.

The lubricant is guided into an assigned lubricant container 19 by means of associated return devices which can be heated with heating elements 16 in the form of collecting trays 17 and return means 18 .

Another embodiment is shown in FIG. 4, which differs from the preferred embodiment according to FIG. Fig. 1 differs in that the individual stranding sections, in each of which a layer is applied, are each assigned a guide element 6 , a rotating press jaw 9 and a stripper 11 .

This Verseilabschnitten is then arranged downstream of the rotor overspeed 12th

As a further variant solution, it is conceivable that the lubrication of the individual wires 1 , including the core 2 , takes place in the area between the spools, not shown, and the stranding sections by means of one or each associated, known lubrication device, not shown.

Claims (9)

1. A process for the production of single and multi-layer lubricated steel wire strands, in which individual standing wires are drawn off from pay-off spools, stranded in layers according to the indirect double-twist principle and fed to the take-off and rewinder arranged in the form of a double-twist stranding machine, characterized in that the wires ( 1 ) the corresponding layers in stranding sections according to their later arrangement in the assembly of the finished strand, including the core ( 2 ), lubricated a rotating pressing jaw ( 9 ) downstream of the respective stranding point ( 7 ) and provided with a bulkhead ( 15 ) for calibrating the Steel wire strand ( 10 ) and stripping of unnecessary lubricant are supplied, as well as the steel wire strand ( 10 ) through an overturning rotor ( 12 ) provided with a bulkhead ( 15 ), in which excess lubricant is still thrown off and one or more Subsequent strippers ( 11 ) and finally the finished strand ( 13 ) into the double-stranding machine ( 3 ), which is provided in the area of the flyer ( 14 ) with bulkheads ( 15 ). 2. The method according to claim 1, characterized in that the core ( 2 ) and associated wires ( 1 ) are lubricated in layers in the region of the syringe of a respective in the associated stranding point ( 7 ) arranged guide element ( 6 ) by means of an associated lubricating device ( 8 ). 3. The method according to claim 1, characterized in that each wire ( 1 ), including the core ( 2 ), is lubricated in the area between the drain system and the stranding sections by means of a respective lubricating device ( 8 ). 4. The method according to any one of claims 1 to 3, characterized in that the lubrication of the wires ( 1 ), including the core ( 2 ), is carried out by means of immersion, spraying or other equivalent known methods. 5. The method according to any one of claims 1 to 4, characterized in that the wires ( 1 ), including the core ( 2 ) and the steel wire strand ( 10 ) as well as the finished strand ( 13 ), as required by others over the entire processing line distributed wipers ( 11 ) are passed through. 6.Device for producing single and multi-layer lubricated steel wire strands according to the indirect double lay stranding principle, consisting of drainage systems specified stationary outside the stranding device, corresponding to the number of layers in the stranding direction of successively arranged identical stranding sections and a rotating system in the form of a double twist stranding machine, which has a take-off and a Rewinders are assigned, characterized in that between the drainage system and stranding sections, each wire ( 1 ), including the core ( 2 ), is assigned a lubrication device ( 8 ) or in the area of the tip of each stranding point ( 7 ) of each stranding section arranged guide element ( 6 ) for core ( 2 ) and associated wires ( 1 ) a common lubrication device ( 8 ) is arranged, the respective guide element ( 6 ) or the guide elements ( 6 ) in the stranding direction with a heatable spray wall ( 15 ) provided rotating press jaw ( 9 ) is assigned and furthermore in the stranding direction an overturning rotor ( 12 ) provided with a heatable splash wall ( 15 ) for throwing away excess lubricant and one or more wipers ( 11 ) are arranged and the double-twist stranding machine ( 3 ) with the flyer ( 14 ) enclosing heated spray walls ( 15 ) is executed. 7. The device according to claim 6, characterized in that the rotating press jaw ( 9 ), the overturning rotor ( 12 ) and the double-twist stranding machine ( 3 ) are provided with heatable return devices in the form of collecting trays ( 17 ) and returns ( 18 ) for the detached lubricant . 8. Apparatus according to claim 6 and 7, characterized in that the heating elements ( 16 ) for the bulkheads ( 15 ) and feedback devices are temperature controlled. 9. Apparatus according to claim 6 to 8, characterized in that further wipers ( 11 ) distributed over the entire processing line are arranged as required.