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EP3906123B1 - Procédé de changement de la plage d'étalonnage d'une chaîne d'étirage, comprenant des maillons, d'une machine à étirer à chenille ainsi que machine à étirer à chenille - Google Patents

Procédé de changement de la plage d'étalonnage d'une chaîne d'étirage, comprenant des maillons, d'une machine à étirer à chenille ainsi que machine à étirer à chenille Download PDF

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Publication number
EP3906123B1
EP3906123B1 EP19823898.2A EP19823898A EP3906123B1 EP 3906123 B1 EP3906123 B1 EP 3906123B1 EP 19823898 A EP19823898 A EP 19823898A EP 3906123 B1 EP3906123 B1 EP 3906123B1
Authority
EP
European Patent Office
Prior art keywords
chain
recesses
chains
tools
caterpillar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19823898.2A
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German (de)
English (en)
Other versions
EP3906123A1 (fr
EP3906123C0 (fr
Inventor
Thomas Cmiel
Jörg LINDBÜCHL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP3906123A1 publication Critical patent/EP3906123A1/fr
Application granted granted Critical
Publication of EP3906123B1 publication Critical patent/EP3906123B1/fr
Publication of EP3906123C0 publication Critical patent/EP3906123C0/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/20—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes from stock of essentially unlimited length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/27—Carriages; Drives
    • B21C1/28—Carriages; Connections of grippers thereto; Grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/27—Carriages; Drives
    • B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/14—Aprons, endless belts, lattices, or like driven elements

Definitions

  • the invention relates to a caterpillar drawing machine comprising a drawing die and a caterpillar train arranged behind the drawing die in a drawing direction, as described for example in JP 2 717 383 B2 , the JP H10 277631 A , the US 2016/288182 A1 , the WO 2006/002613 A1 or the WO 2005/092533 A1 are disclosed.
  • the crawler train can pull a workpiece through the drawing die along a drawing line aligned parallel to the drawing direction, forming it, and for this purpose comprises two rotating chain links and drawing tools arranged or designed that can grip the workpiece and pull it through the drawing die in accordance with the rotating movement of the drawing chains of the crawler train.
  • the drawing tools or the drawing chains each rotate parallel to or in a drawing plane that intersects the drawing line.
  • the drawing recesses are adapted, at least within certain limits, to the cross-section of the workpiece to be drawn. This serves to securely grip the respective workpieces without damaging the workpiece.
  • the JP H10 277631 A forms the basis for the preamble of claims 1 and 3.
  • the respective drawing tools are pressed against each other with the necessary force in a gripping area, for example via corresponding pressure bars that carry pressure rollers and, if necessary, via idler rollers that also rotate. It is assumed that the pressure forces must be approximately ten times as high as the pulling forces that the caterpillar train must apply to form the workpiece through the drawing die.
  • a certain shape of a drawing recess allows a certain caliber range of workpiece cross-sections that can be reliably gripped with the corresponding drawing recess.
  • the object of the invention is achieved by a caliber changing method for changing the caliber range of a drawing chain comprising chain links of a crawler pull-drawing machine and by a crawler pull-drawing machine with the features of the independent claims. Further, possibly also independent of these, advantageous embodiments can be found in the subclaims and the following description.
  • the drawing tools which comprise the first and second drawing recesses and are arranged on the chain links of the drawing chain of the crawler track, can be aligned together with the respective chain link.
  • This allows the caliber range of the drawing chain or chains to be changed easily and reliably, since the drawing tools can be aligned together with the respective chain link in relation to the drawing line or the drawing plane in such a way that the two drawing recesses are aligned in relation to the drawing line as desired for drawing a specific workpiece.
  • the drawing tools do not have to be aligned independently of the respective chain links that carry the corresponding drawing tools, the drawing tools do not need to be detached from the corresponding chain links before alignment and reconnected to them after alignment.
  • the pulling tools of the two pulling chains of the crawler train belonging to the crawler-type pulling machine can be aligned together with the respective chain link perpendicular to the pulling line.
  • the entire pulling chain as a whole is displaced or aligned accordingly, which can be done, for example, by displacing the pulling chain at a local point, for example on a sprocket, while it is rotating, so that after one revolution or even after several revolutions a corresponding displacement has taken place.
  • the displacement can also be carried out successively in several individual steps, so that several revolutions are needed until the entire chain is then displaced from a first alignment position, in which the respective first pulling recesses are aligned with respect to the pulling line, to a second alignment position, in which the second pulling recesses are aligned with respect to the pulling line.
  • the entire chain is displaced accordingly in one step, for example by displacing a chain carrier carrying the pulling chains and possibly even the sprockets around which the corresponding pulling chain is guided together.
  • a displacement can occur in particular when the chain carrier and/or at least one of the chain wheels is displaced accordingly by means of an axial drive or when the chain itself is still under tension.
  • it is not absolutely necessary to let the pull chain rotate since all components that are in contact with the chain can be displaced axially in the same way, so that large frictional forces should not occur here.
  • a simple and reliable change of the caliber range of the pulling chains can also be ensured if the pulling recesses of a first of the two pulling chains differ from the pulling recesses of a second of the two pulling chains or are at least arranged perpendicular to the pulling line on their respective chain links in a different manner. This also applies if two different pulling recesses of the second of the two pulling chains are intended for the first caliber range for which the first pulling recesses of at least one of the two pulling chains are intended.
  • the drawing tools and the respective chain links of the second drawing chain can be aligned with a directional component that differs from the directional component with which the drawing tools and chain links of the first drawing chain are aligned. It may thus be conceivable to displace the drawing tools of the first drawing chain to the left with respect to a drawing plane intersecting the drawing line, while the drawing tools of the second drawing chain are displaced to the right with respect to the drawing plane in order to obtain the desired pairing of drawing recesses of the first drawing chain and drawing recesses of the second drawing chain, each of which is aligned with respect to the drawing line.
  • a workpiece is drawn through the drawing die along a drawing line aligned parallel to the drawing direction.
  • drawing machines such as 2-slide drawing machines or circulating roller drawing machines
  • this ensures a very high drawing speed with excellent straightness of the workpieces to be drawn.
  • crawler-type pulling machines prove to be relatively complex and therefore cost-intensive due to the crawler tracks.
  • a crawler track In order to represent a crawler track, it comprises at least one pulling chain with corresponding chain links, whereby a wide variety of chain types, such as pure block chains, block link chains or pure link chains or even more complex chain arrangements consisting of two parallel chains etc. are already known as pulling chains.
  • a crawler train can pull the workpiece with just one drawing chain and only one set of corresponding drawing tools that are driven by the drawing chain, if, for example, a frictional connection between the workpiece and the drawing tools can be ensured by means of pliers-like designs or other measures.
  • the drawing tools can also be driven jointly by two parallel rotating drawing chains, as is also known from the prior art.
  • a caterpillar track designed in this way can already ensure that the corresponding workpiece is pulled by the drawing die, as long as a sufficient frictional or force-locking connection between the workpiece and the drawing tool can be ensured by suitable measures, as already indicated above.
  • the drawing tools can also have first and second drawing recesses, wherein the first drawing recesses are intended for a first caliber range and the second drawing recesses are intended for a second caliber range that differs from the first caliber range, so that an entire caliber range that includes the first and the second caliber range can be provided by one drawing tool in each case.
  • the drawing recesses are preferably arranged next to one another on the respective drawing tools with a component perpendicular to the drawing line, so that by a corresponding displacement of the respective drawing tools perpendicular to the drawing line, the first drawing recesses and the second drawing recesses can be selectively aligned with respect to the drawing line in order to change the caliber range accordingly between the first and the second caliber range.
  • the respective drawing tools which then rotate with the drawing chains, can then be used together to grip the workpiece to be drawn.
  • the drawing tools of at least one of the two drawing chains comprise two drawing recesses
  • the drawing tools of the other of the two drawing chains each have only one drawing recess, insofar as this is suitable, in conjunction with the two drawing recesses of the drawing tools of the first drawing chain, to be able to cover the desired caliber range, taking into account the position of the respective drawing tools in relation to the drawing line, to such an extent that the respective workpieces can be gripped sufficiently firmly without damaging them.
  • first and second drawing recesses of the first drawing chain can be optionally aligned with respect to the drawing line by displacing the respective drawing tools perpendicular to the drawing line.
  • the final caliber can then be selected accordingly in relation to the respective workpiece.
  • drawing tools comprising at least two drawing recesses can also be arranged or formed on the chain links of the second drawing chain.
  • the final caliber can be adjusted even more precisely in relation to the workpieces, which accordingly increases operational reliability when gripping the workpieces and/or minimizes the risk of damage to the workpieces.
  • the drawing recesses of the second drawing chain deviate from the drawing recesses of the first drawing chain or at least deviate perpendicularly to the drawing line
  • the entire caliber range that can be covered by the respective set of drawing tools can be increased accordingly if the respective drawing recesses are suitably coordinated with one another.
  • At least the drawing recesses of the second drawing chain can be arranged perpendicular to the drawing line, deviating from the first drawing recesses of the first drawing chain, which, it is assumed, should reduce the overall wear, since different areas of the crawler train or the crawler train drawing machine are loaded with a caliber change.
  • the drawing recesses of the second drawing chain are also arranged next to one another perpendicular to the drawing line or in relation to a drawing plane intersecting the drawing line, so that the drawing recesses of the second drawing chain can be aligned together with the respective chain link by moving the respective drawing tools perpendicular to the drawing line, optionally in relation to the drawing line, in order to change the caliber range accordingly between the two caliber ranges.
  • This can be done in particular, as already indicated above, with a directional component that deviates from the directional component with which the drawing tools and chain links of the first drawing chain are aligned to achieve the desired overall caliber.
  • drawing machines are also known, for example for cables, where the focus is only on transport or forming perpendicular to the drawing direction, for example for redistribution of the individual filaments of a cable.
  • the crawler-type drawing machine is particularly suitable for forming processes in which material is redistributed not only vertically but also along the drawing line, due to the relatively high forming forces that can be applied. Accordingly, the crawler-type drawing machines in question and the corresponding caliber changing processes are particularly suitable for pipes, rods or bars to be formed, preferably for metal pipes, rods or bars to be formed accordingly.
  • drawing tools of both drawing chains can each be aligned together with the respective chain link perpendicular to the drawing line, which - as already explained above - increases the flexibility and/or the size of the entire caliber range that can be covered thereby.
  • the two drawing recesses of the second of the two drawing chains are intended for caliber ranges that differ from the first and second caliber ranges of the first of the two drawing chains, a large overall caliber range can be provided by the respective set of drawing tools.
  • a correspondingly high level of flexibility or a correspondingly high overall caliber range can be achieved in particular if all of the drawing recesses of the first of the two drawing chains differ from the drawing recesses of the second of the two drawing chains.
  • a pulling level in which the pulling line is located can be assigned to the respective crawler track.
  • the pulling level also includes the pulling line.
  • the drawing plane can be placed parallel to the plane in which this drawing chain rotates, at least in relation to one of the drawing chains. Any chain wheels will then also be arranged parallel to this drawing plane.
  • pulling chains are usually arranged opposite each other in order to distribute the forces as evenly as possible.
  • the corresponding pulling planes then meet in the pulling line and lie one above the other.
  • the pulling planes also meet or intersect in the pulling line without overlapping.
  • arrangements with several pulling planes have proven to be relatively complex in terms of construction and therefore relatively costly and difficult to operate.
  • two pulling chains are used for the crawler track, which are guided parallel to a pulling plane comprising the pulling line.
  • sprockets per pulling chain there will also be two sprockets per pulling chain, which are also arranged parallel to the pulling plane and around which the pulling chains are guided.
  • the sprocket or sprockets are aligned parallel to a pulling plane that intersects the pulling line, so the respective pulling chains also run parallel to this pulling plane and preferably even run in this pulling plane.
  • the sprockets themselves can also be constructed in a more complex manner and, for example, comprise several chain rings arranged parallel to one another in relation to the axes of the sprockets, each of which engages in the pulling chains or guides them accordingly.
  • One of these sprockets or even both of these sprockets are usually also used to drive the chains in order to generate the corresponding pulling forces.
  • the drawing tools and chain links of the drawing chains are aligned together with the chain wheel or chains in order to change the caliber range between the first and second caliber range, which is particularly easy to implement in terms of construction.
  • the latter applies in particular when the chain wheels are arranged on a chain carrier, which preferably also fulfills other guiding tasks, in particular for the respective drawing chain. It is then possible to carry out the corresponding shifts together with this chain carrier in order to change the caliber range between the first and second caliber range by shifting the entire chain carrier accordingly.
  • the drawing line does not need to be changed or relocated when aligning the drawing tools or the drawing recesses and the chain links in relation to the drawing line, so that a relocation of the drawing die on the one hand and also a relocation of other units which work together with the crawler drawing machine and interact with the workpieces before or after drawing, such as for descaling, straightening or cutting to length, do not need to be moved.
  • the crawler-type drawing machine preferably has a drawing die carrier which carries the drawing die, and a chain carrier which carries at least one of the chains or at least associated chain guides and is in itself part of the crawler train.
  • the chain carrier can preferably be displaced perpendicular to the drawing line by means of an axial drive for axially displacing the chain carrier, so that the associated drawing chain can be displaced accordingly in relation to the drawing die carrier.
  • Such an axial drive enables a simple and targeted displacement of the respective chain links and thus also of the associated drawing tools in order to be able to align the respective drawing recesses accordingly.
  • the drawing tools can be arranged or formed on the chain links.
  • the drawing chains comprise blocks
  • it proves to be advantageous to arrange or form the drawing tools on the blocks of the drawing chain as is already the case, for example, in the EP 2 197 601 B1 or in certain embodiments of the WO 2006/002613 A1 or in the DE 10 2018 111 731 A1
  • separate pulling tools that are only attached to the lugs of the pulling chains, such as the JP 2 986 758 B2 or specific embodiments of the WO 2006/002613 A1
  • the drawing recesses can be formed in the blocks of the drawing chain or one of the drawing chains, since the chain links, and thus also the blocks as chain links, are to be moved together with the drawing tools, so that a structural separation is not absolutely necessary.
  • a separately designed tool holder which is provided or formed on the respective chain links, for example on the blocks, can be dispensed with, so that the respective Chain links and the drawing tools, and if necessary also the tool holder, can be designed as a structural unit or in one piece.
  • the crawler train drawing machine can also comprise several drawing dies, through which the crawler train then successively draws the corresponding workpiece.
  • the two drawing recesses of one or all of the drawing tools of one or both of the drawing chains can be assigned to identical caliber ranges if this seems appropriate, for example in order to be able to quickly change the drawing recesses in the event of wear without having to replace all of the drawing tools or the drawing chain, if a caliber change is not actually necessary in this regard for the corresponding crawler-type drawing machine, but the service life is to be extended accordingly.
  • the caterpillar drawing machines 10 shown in the figures each comprise a drawing die 12 and a caterpillar train 13 arranged behind the drawing die 12 as seen in a drawing direction 21 and serve to pull workpieces 11 in the drawing direction along a drawing line 20 through the drawing die 12.
  • the crawler-type drawing machines 10 have a base plate 56, by means of which a drawing die carrier 53 for supporting the drawing die 12 and an eccentric carrier 52 are arranged in a fixed position relative to one another.
  • the base plate 46 may be omitted as long as the eccentric carrier 52 and the drawing die carrier 53 can be placed in a sufficiently stable relationship to one another in another way, for example by the corresponding assemblies being attached directly to a floor or to another building unit.
  • the base plate 56 may not support the eccentric carrier 52 and the drawing die carrier 53 directly, but may only support them indirectly.
  • drawing force stabilizers 55 are arranged on the side of the drawing die carrier 53, which stabilize the drawing die carrier 53 as plate-like extensions.
  • the drawing force stabilizer 55 on the side of the eccentric carrier 52 extends up to the eccentric carrier 52 and even beyond it in order to further stabilize the overall arrangement and in particular to ensure stable support of the eccentric carrier 52 in relation to the drawing die carrier 53.
  • the crawler tracks 13 each comprise two pulling chains 14 that run parallel to a pulling plane 23.
  • Each of the pulling chains 14 is guided around two chain wheels 15, the axes of which are aligned perpendicular to the pulling plane 23.
  • further pulling chains that rotate accordingly can be provided.
  • the pulling planes 23 assigned to the respective pulling chains 14 also intersect in the pulling line 20, which, however, leads to an overlap of these pulling planes 23 to form the single pulling plane 23.
  • a plane 25 can be defined which also intersects the drawing line 20 and in principle represents the plane of symmetry with respect to which the two drawing chains 14 and their sprockets 15 are in principle arranged with respect to the drawing line 20.
  • Each of the pulling chains 14 is subjected to a contact pressure force at least in a gripping region 18 by means of a pressure bar 82, which has a component 22 directed towards the pulling line 20.
  • drawing tools 40 which are arranged or formed on chain links of the drawing chains 14, can be pressed against a workpiece 11 located on the drawing line 20 in order to ensure sufficient frictional or force-locking engagement, which enables the corresponding workpiece 11 to be drawn by the drawing die 12.
  • the drawing die 12 can then have a deforming effect on the corresponding workpiece 11, wherein during this forming process at least a material distribution of the material from which the workpiece 11 consists takes place in a plane perpendicular to the drawing line 20, wherein preferably even a redistribution takes place along the drawing line 20, so that the workpiece is also stretched during the drawing process.
  • rods, tubes or bars in particular metallic rods, tubes or bars, can be processed accordingly.
  • the pulling chains 14 of the Figures 1 to 5 illustrated embodiment are designed as block-link chains and comprise blocks 17A, links 17B and bolts 19 as chain links.
  • the pulling chains 14 of the Figures 6 to 9 illustrated embodiment are designed as block chains and comprise only blocks 17A and bolts 19 as chain links.
  • the remaining chain links are connected to one another in an articulated manner via the bolts 19 of the respective pulling chains 14.
  • the bolts 19 each carry chain rollers 16, which can engage in sprocket wheels of the sprockets 15, which are not separately numbered, so that the pulling chains are each guided around the sprockets 15 and can also be driven by them if necessary.
  • the crawler train 13 of the Figures 1 to 5 The illustrated embodiment has a chain drive 54 for each pulling chain 14, which engages the respective chain wheel 15 located at the rear in the pulling direction 21 and in this way drives the respective pulling chain 14.
  • both chain wheels 15 of the pulling chains 14 are driven by means of a chain drive 54, which enables a somewhat more uniform application of the pulling forces required for pulling.
  • the drawing tools 40 are each formed in the blocks 17A of the drawing chains 14.
  • the drawing tools 40 and the blocks 17A as well as the tool holders 30 holding the drawing tools 40 on the chain links are formed in one piece.
  • drawing tools 40 can also be designed as separate assemblies in different embodiments from the blocks 17A, as is well known from the prior art. However, this requires a somewhat increased construction effort, since the corresponding blocks must then be designed as tool holders 30 and corresponding holding devices must be provided on the tool holders 30 and/or on the drawing tools 40. On the other hand, this enables the drawing tools 40 to be changed if they become worn.
  • separate tool holders 30 may be provided, which can then be provided or attached to chain links, for example to blocks, tabs or bolts of the corresponding pulling chains 14, in order to hold the pulling tools 40 accordingly.
  • chain links for example to blocks, tabs or bolts of the corresponding pulling chains 14, in order to hold the pulling tools 40 accordingly.
  • the drawing tools 40 of all embodiments have at least two drawing recesses 41 on their sides of the respective drawing tool 40 arranged perpendicular to the drawing plane 23 and directed towards the plane 25.
  • the drawing recesses 41 of the respective drawing tool 40 are intended for different caliber ranges, so that a relatively large overall caliber range can be covered by these drawing tools 40.
  • the cross-section of the drawing recesses 41 is such that when they are pressed against a workpiece 11 that is located within the caliber range for which the corresponding drawing recess 41 is intended, sufficiently high force- or friction-locking contact forces are applied that the drawing chains 14 can pull the workpiece 11 through the drawing die 12 without the workpiece 11 being critically impaired, for example damaged or deformed.
  • contact bars 82 are provided by contact bars 82, whereby the contact bars 82 can be moved by eccentrics 51 parallel to the drawing plane 23 toward or away from the drawing line 20.
  • the eccentrics 51 are mounted in the eccentric carrier 52 in order to be able to withstand the corresponding contact forces but also the corresponding pulling forces.
  • eccentrics 51 can be used instead of other devices, such as electromotive linear drives, possibly in combination with suitable gears, levers and/or guides, in order to apply the required contact forces perpendicular to the plane 25 or in the respective drawing planes 23.
  • eccentric supports 52 alternative suitable supports are used which are in a spatial relationship to the respective drawing die support 53 and support the corresponding devices and absorb the corresponding contact forces and possibly also the drawing forces.
  • the pulling chains 14 and the associated chain wheels 15 are each arranged on chain carriers 50 which are carried by the eccentrics 51, whereby this is the case in the embodiment according to Figures 1 to 5 directly via the eccentrics 51 and the respective chain carriers 50 also carry or form the pressure beam 82.
  • the pressure beam 82 is designed as a separate assembly and is carried directly by the eccentrics 51 in order to apply the associated pressure forces there, while the associated chain carrier 50 is then supported in a displaceable manner. It is understood that in this regard, depending on the specific requirements, the specific design of the chain carrier 50 in relation to the pressure beam 82 and in relation to the eccentrics 51 or other devices applying the pressure forces can be adapted or replaced.
  • idler rollers 80 are provided, which are each arranged in idler roller chains 81 and run past or around the pressure beams 82 together with the respective pulling chains 14, but at a different running speed.
  • the idler roller chains 81 are designed as link chains, on whose bolts the idler rollers 80 are arranged, wherein the links 84 of the idler roller chains 81 are arranged on both sides of the idler rollers 80.
  • the idler roller chains 81 also carry guide disks 83, which in this embodiment are provided between the plates 84 and the idler rollers 80 and which protrude beyond the track of the idler rollers 80.
  • These plates 84 guide both the idler rollers 80 or the idler roller chains 81 on the one hand and - indirectly - the pulling chains 14 or the chain links of the pulling chain 14 in relation to the pulling plane 23 on the other hand perpendicular to the pulling plane 23.
  • a guidance of the pulling chains 14 or the chain links of the pulling chains 14 perpendicular to the pulling plane 23 over the pressure beam 82 is possible in the Figures 6 to 9 illustrated embodiment, in which the idler rollers 80 or the idler roller chains 81 are guided via lateral idler roller guides 85, which are provided on the pressure beams 82 and surround the idler rollers laterally parallel to the drawing plane 23.
  • the drawing chains 14 are guided in relation to the drawing plane 23 by the chain wheels 15 and/or - if necessary - external lateral guides not shown separately here, which are provided for example on the chain carriers 50 or even completely independently thereof.
  • Such a configuration makes it possible to move the drawing chains 14 perpendicular to the respective drawing plane 23 in relation to the idler rollers 80 or in relation to the pressure beam 82 if this is desired - as will be explained in more detail below. It is understood that if a corresponding displacement in relation to the idler rollers 80 or to the pressure beam 82 is not desired, corresponding guides can also be provided on the chain links of the drawing chain 14 or on the tool holders 30 or the drawing tools 40, such as idler roller guides 85 that surround the idler rollers 80 in order to ensure corresponding lateral guidance in relation to the drawing plane 23.
  • the guide according to the example of the Figures 1 to 5 be provided - and vice versa.
  • the pressure bar 82 carries the idler roller chain 81 as a separate assembly, serves as a guide bar both for the idler roller chain 81 and for applying the contact pressure, and is directly supported by the eccentrics 51, which in turn are mounted in the eccentric carrier 52.
  • the drawing tools 40 of the present embodiments each have at least two drawing recesses 41, which are offset parallel to the drawing line 20 or perpendicular to the drawing plane 23 and can each be selectively aligned with respect to the drawing line 20. This can be done in the case of the Figures 1 to 5 illustrated embodiment by appropriate displacements of the pressure beams 82 together with the chain carriers 50, while in the Figures 6 to 9 illustrated embodiments by displacing the chain wheels 15 together with the chain carrier 50 or with the lateral guides not shown separately.
  • the embodiments of the Figures 1 to 9 Axial drives 60 which in the embodiment according to Figures 1 to 5 as hydraulics 61 and in the embodiment according to Figures 6 to 9 are designed as linear motors 62. It is understood that here too, the type of drive can be exchanged for other suitable drives or for each other.
  • the hydraulics 61 are formed directly in the eccentrics 51 and the eccentric supports 52, so that no separate assemblies are required here and the eccentrics 51 themselves can be displaced accordingly by the hydraulics 61. It is understood that in different embodiments, a separate axial drive 60 can also be provided, which - if necessary - also axially displaces the entire eccentric support 52 or an assembly that carries the assembly that applies the contact forces.
  • the drawing tools 40 of both drawing chains can be aligned together with the respective chain link perpendicular to the drawing line 20 or perpendicular to the drawing plane 23. Depending on the specific embodiment, however, it may be sufficient if only one of the two drawing chains 14 satisfies this condition.
  • drawing recesses 41 of the two drawing chains 14 are designed symmetrically with respect to the plane 25 directed perpendicular to the drawing plane 23, so that the drawing tools are displaced with identical directional components with respect to the drawing plane 23 when the caliber range is to be changed.
  • the drawing recesses 41 of the respective drawing tools 40 each have a different cross-section.
  • drawing recesses can also be arranged not mirror-symmetrically with respect to the plane 25 but line-symmetrically to the drawing line 20, as is shown in the embodiment according to Figure 11 As long as this symmetry to the drawing line 20 remains, a displacement of the drawing tools 40 similar to the Figures 11b and 11c in order to align the two caliber ranges appropriately to the drawing line 20.
  • drawing recesses 41 it is also conceivable to design the drawing recesses 41 differently and thus to determine them for different caliber ranges, as is the case in the specific embodiment according to Figure 11 is shown.
  • different drawing recesses with various caliber ranges can then be arranged accordingly in relation to the drawing line 20, on which the workpiece 11 is then drawn. Accordingly, for the first caliber range, for which the first drawing recesses 41 of at least one of the two drawing chains 14 are intended, two different drawing recesses 41 of the second of the two drawing chains 14 are intended.
  • both or all of the pulling chains 14 do not necessarily have to have multiple pulling recesses 41. Rather, it is also conceivable that different numbers can be provided here and, in particular, one of the pulling chains 14 can have only one pulling recess 41.
  • the Figures 12 and 13 The drawing recesses 41 shown are particularly suitable for pipes, whereby ultimately the drawing tools 40 can also be used together or in one piece with the chain links or separately.
  • the drawing recesses 40 are designed for identical calibers, so that instead of changing the caliber by moving or alignment of the drawing tools 40, for example, wear can be counteracted without the drawing tools 40 or even the drawing chains 14 having to be replaced.

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Claims (10)

  1. Procédé de changement de la plage de calibres d'une chaîne de traction (14) comprenant des maillons de chaîne d'une machine de traction à chenilles (10) comprenant une filière (12) et une chenille (13) disposée derrière la filière (12) dans une direction de traction (21), qui peut tirer une pièce (11) le long d'une ligne de traction (20) parallèle à la direction de traction (21) en la déformant à travers la filière (12) et qui comprend une chaîne de traction (14) comprenant les maillons de chaîne, dans lequel des outils de traction (40) comprenant au moins des premières et des deuxièmes ouvertures de traction (41) sont disposés ou formés sur les maillons de la chaîne de traction (14), les premières ouvertures de traction (41) étant destinées à une première plage de calibres et les deuxièmes ouvertures de traction (41) étant destinées à une deuxième plage de calibres différente de la première plage de calibres, et dans lequel les premières ouvertures de traction (41) et les deuxièmes ouvertures de traction (41) sont alignées par déplacement des outils de traction (40) respectifs perpendiculairement à la ligne de traction (20) soit par rapport à la ligne de traction (20), soit à un plan de traction (23) coupant la ligne de traction (20), pour changer la plage de calibres en conséquence entre la première et la deuxième plage de calibres, dans lequel la chenille (13) comprend deux chaînes de traction (14) qui circulent parallèlement au plan de traction (23), chaque chaîne de traction (14) étant guidée autour de deux roues dentées (15) disposées parallèlement au plan de traction (23), dans lequel des outils de traction (40) comprenant au moins deux ouvertures de traction (41) sont disposés ou formés sur les maillons de la deuxième chaîne de traction (14), dans lequel les ouvertures de traction (41) de la deuxième chaîne de traction (14) sont alignées par déplacement des outils de traction (40) respectifs perpendiculairement à la ligne de traction (20), soit par rapport à la ligne de traction (20), soit au plan de traction (23) coupant la ligne de traction (20), conjointement avec le maillon de chaîne respectif, pour changer la plage de calibres en conséquence entre les deux plages de calibres, et dans lequel les outils de traction (40) sont alignés conjointement avec le maillon de chaîne respectif, caractérisé en ce que les ouvertures de traction (41) de la deuxième chaîne de traction (14) diffèrent des ouvertures de traction (41) de la première chaîne de traction (14) ou sont au moins disposées perpendiculairement à la ligne de traction (20) de manière différente, dans lequel les outils de traction (40) et les maillons de chaîne respectifs de la deuxième chaîne de traction (14) sont alignés avec une composante directionnelle différente de la composante directionnelle avec laquelle les outils de traction (40) et les maillons de chaîne de la première chaîne de traction (14) sont alignés.
  2. Procédé de changement de calibre selon la revendication 1, caractérisé en ce que la chaîne de traction (14) est détendue avant l'alignement et retendue après l'alignement.
  3. Machine de traction à chenilles (10) comprenant une filière (12) et une chenille (13) disposée derrière la filière (12) dans une direction de traction (21), qui peut tirer une pièce (11) le long d'une ligne de traction (20) parallèle à la direction de traction (21) en la déformant à travers la filière (12) et qui comprend deux chaînes de traction (14) circulants comprenant des maillons de chaîne, dans laquelle des outils de traction (40) comprenant au moins des premières et des deuxièmes ouvertures de traction (41) sont disposés ou formés sur les maillons de chaîne des deux chaînes de traction (14), les premières ouvertures de traction (41) étant destinées à une première plage de calibres et les deuxièmes ouvertures de traction (41) étant destinées à une deuxième plage de calibres différente de la première plage de calibres, et dans laquelle les premières ouvertures de traction (41) et les deuxièmes ouvertures de traction (41) sont alignées par déplacement des outils de traction (40) respectifs perpendiculairement à la ligne de traction (20) ou à un plan de traction (23) coupant la ligne de traction (20), soit par rapport à la ligne de traction (20), soit au plan de traction (23), dans laquelle la chenille (13) comprend deux chaînes de traction (14) qui circulent parallèlement au plan de traction (23), chaque chaîne de traction (14) étant guidée autour de deux roues dentées (15) disposées parallèlement au plan de traction (23) et dans laquelle les outils de traction (40) des deux chaînes de traction (14) peuvent être alignés conjointement avec le maillon de chaîne respectif perpendiculairement à la ligne de traction (20), caractérisé en ce que pour la première plage de calibres, pour laquelle les premières ouvertures de traction (41) d'au moins une des deux chaînes de traction (14) sont destinées, deux ouvertures de traction (41) différentes de la deuxième des deux chaînes de traction (14) sont destinées, et les ouvertures de traction (41) d'une première des deux chaînes de traction (14) diffèrent des ouvertures de traction (41) d'une deuxième des deux chaînes de traction (14) ou sont au moins disposées perpendiculairement à la ligne de traction (20) de manière différente sur leurs maillons de chaîne respectifs.
  4. Machine de traction à chenilles (10) selon la revendication 3, caractérisée en ce que les outils de traction (40) des deux chaînes de traction (14) peuvent être alignés conjointement avec le maillon de chaîne respectif perpendiculairement à la ligne de traction (20).
  5. Procédé de changement de calibre selon la revendication 1 ou 2 ou machine de traction à chenilles (10) selon la revendication 3 ou 4, caractérisé en ce que les deux ouvertures de traction (41) de la deuxième des deux chaînes de traction (14) sont destinées à des plages de calibres différentes des premières et deuxièmes plages de calibres de la première chaîne de traction (14).
  6. Procédé de changement de calibre selon la revendication 1, 2 ou 5 ou machine de traction à chenilles (10) selon l'une des revendications 3 à 5, caractérisé en ce que toutes les ouvertures de traction (41) de la première des deux chaînes de traction (14) diffèrent des ouvertures de traction (41) de la deuxième des deux chaînes de traction (14).
  7. Procédé de changement de calibre selon l'une des revendications 1, 2, 5 et 6 ou machine de traction à chenilles (10) selon l'une des revendications 3 à 6, caractérisé en ce que les chaînes de traction (14) sont guidées en circulant parallèlement à un plan de traction (23) comprenant la ligne de traction (20) autour d'au moins une roue dentée (15) et en ce que les outils de traction (40) sont ou peuvent être alignés perpendiculairement au plan de traction (23) et/ou conjointement avec la roue dentée (15).
  8. Procédé de changement de calibre selon l'une des revendications 1, 2 et 5 à 7 ou machine de traction à chenilles (10) selon l'une des revendications 3 à 7, caractérisé en ce que la machine de traction à chenilles (10) comprend un support de filière (53) et au moins un entraînement axial (60) pour le déplacement axial de la chaîne de traction (14) par rapport au support de filière (53).
  9. Procédé de changement de calibre ou machine de traction à chenilles (10) selon les revendications 7 et 8, caractérisé en ce que la roue dentée (15) et avec elle la chaîne de traction (14) et les outils de traction (40) associés sont ou peuvent être alignés par l'entraînement axial (60), de préférence la machine de traction à chenilles (10) comprend un support de chaîne (50) portant la roue dentée (15) et le support de chaîne (50) et avec lui la roue dentée (15) associée, la chaîne de traction (14) et les outils de traction (40) associés sont ou peuvent être alignés par l'entraînement axial (60).
  10. Procédé de changement de calibre selon l'une des revendications 1, 2 et 5 à 9 ou machine de traction à chenilles (10) selon l'une des revendications 3 à 9, caractérisé en ce que les outils de traction (40) sont disposés ou formés sur des blocs (17A) de la chaîne de traction (14).
EP19823898.2A 2019-01-04 2019-12-02 Procédé de changement de la plage d'étalonnage d'une chaîne d'étirage, comprenant des maillons, d'une machine à étirer à chenille ainsi que machine à étirer à chenille Active EP3906123B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019100142 2019-01-04
DE102019106362.0A DE102019106362A1 (de) 2019-01-04 2019-03-13 Verfahren zum Wechsel des Kaliberbereichs einer Kettenglieder umfassenden Ziehkette einer Raupenzugziehmaschine sowie Raupenzugziehmaschine
PCT/DE2019/101031 WO2020141005A1 (fr) 2019-01-04 2019-12-02 Procédé de changement de la plage d'étalonnage d'une chaîne d'étirage, comprenant des maillons, d'une machine à étirer à chenille ainsi que machine à étirer à chenille

Publications (3)

Publication Number Publication Date
EP3906123A1 EP3906123A1 (fr) 2021-11-10
EP3906123B1 true EP3906123B1 (fr) 2024-10-16
EP3906123C0 EP3906123C0 (fr) 2024-10-16

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EP19823898.2A Active EP3906123B1 (fr) 2019-01-04 2019-12-02 Procédé de changement de la plage d'étalonnage d'une chaîne d'étirage, comprenant des maillons, d'une machine à étirer à chenille ainsi que machine à étirer à chenille

Country Status (9)

Country Link
US (1) US11786950B2 (fr)
EP (1) EP3906123B1 (fr)
JP (1) JP7571027B2 (fr)
KR (1) KR20210112354A (fr)
BR (1) BR112021013300A2 (fr)
DE (2) DE102019106362A1 (fr)
ES (1) ES3008268T3 (fr)
MX (1) MX2021008117A (fr)
WO (1) WO2020141005A1 (fr)

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NL2029401B1 (en) * 2021-10-14 2023-05-11 Deme Offshore Nl B V Elongated body tensioner for pulling two or more elongated bodies along in a direction of movement

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Also Published As

Publication number Publication date
JP2022516925A (ja) 2022-03-03
EP3906123A1 (fr) 2021-11-10
DE102019106362A1 (de) 2020-07-09
ES3008268T3 (en) 2025-03-21
BR112021013300A2 (pt) 2021-11-23
KR20210112354A (ko) 2021-09-14
US20220088659A1 (en) 2022-03-24
US11786950B2 (en) 2023-10-17
MX2021008117A (es) 2022-01-06
DE112019006557A5 (de) 2021-10-21
EP3906123C0 (fr) 2024-10-16
WO2020141005A1 (fr) 2020-07-09
JP7571027B2 (ja) 2024-10-22

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