EP2127776B1 - Device for looped-shaped bending of a continuous wire - Google Patents
Device for looped-shaped bending of a continuous wire Download PDFInfo
- Publication number
- EP2127776B1 EP2127776B1 EP09006671A EP09006671A EP2127776B1 EP 2127776 B1 EP2127776 B1 EP 2127776B1 EP 09006671 A EP09006671 A EP 09006671A EP 09006671 A EP09006671 A EP 09006671A EP 2127776 B1 EP2127776 B1 EP 2127776B1
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- European Patent Office
- Prior art keywords
- wire
- pegs
- guide element
- row
- loop
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F45/00—Wire-working in the manufacture of other particular articles
- B21F45/16—Wire-working in the manufacture of other particular articles of devices for fastening or securing purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/04—Undulating
Definitions
- the invention relates to a device for looping a continuous wire to a wire comb with loop-shaped sections of substantially hairpin-shaped bent and adjacent tines and with the loop-shaped sections connecting, extending in the longitudinal direction of the wire comb and successively arranged wire sections, with two spaced apart and synchronous moving pin carriers, each carrying a number of consecutive pins in the direction of movement, wherein the rows of pins have substantially the same pitch, but the pins of the two rows of pins are offset in the direction of movement of the pin carrier against each other, and with a rotatably mounted about an axis of rotation loop loops for loop-laying the wire in turn alternately around a pin of a row of pins and a pin of the other row of pins.
- Wire combs of the aforementioned type are used in particular for binding the paper blocks by the wire combs after their manufacture by a device of the aforementioned type in subsequent or downstream Devices are first pre-bent C-shaped and divided into wire comb sections and then inserted and closed in the introduced in the region of a side edge of the paper blocks holes.
- a device of the type mentioned is from the DE 10 2006 015 809 A1 and the corresponding one EP 1 842 606 A1 known.
- the rotatably mounted loop puller has two arms and a central head part, from which the two arms extend diametrically outwards.
- the loop puller is arranged not only rotatable about its axis of rotation, but the loop puller or at least the central head part is also movably mounted in the axial direction, relative to the axis of rotation of the loop puller, said movement being radial with respect to one of the two pin wheels and thus to the the pin row carrying circumference of this pin wheel is oriented. This movement can be reciprocal.
- the head part can be moved in the direction of the pin row of the pin wheel and away from it. In this way, it is possible to bring the head part in abutment with two adjacent pins of the pin wheel to press during this movement, the wire in the gap located between these two pins and to close for receiving the corresponding portion of the wire substantially. This ensures that with continued rotation of the loop puller for the subsequent bending or bending process, the wire is held in the gap and unintentional slipping out of the wire is prevented from this gap.
- the head part is provided as an axially reciprocally movably mounted plunger and serves as a first stripping element. Further, a further stripping element is used to transfer the hairpin-shaped curved, prong-shaped portions of the wire on the pins of another pin wheel. This second stripping element is formed in this known device as a cup-shaped swash plate.
- the invention proposes to use a stationary arranged guide element, which is designed for the guided engagement of the wire in at least one row of pins.
- a guide element according to the invention requires a much simpler construction than the use of a movably mounted plunger or even a movably mounted loop puller with a designed as a plunger head part.
- the loop puller is also fixed in relation to the pin carriers and only requires a rotatable support for looping the wire.
- the invention leads to a simpler and less expensive construction and at the same time to a more effective and reliable operation of the device.
- means for the rotationally fixed coupling of the axes of rotation of the two pin carriers can be used.
- a drive device which drives only the axis of rotation of one of the two pinion wheels, and form the axes of rotation of both pin carrier a common bending axis, whereby the coupling means is formed by the angled connecting portion of the bending axis.
- a drive device which drives only the axis of rotation of one of the pin carriers, wherein the coupling means consists of a universal joint.
- a drive device which drives only the axis of rotation of one of the pin wheels, wherein the coupling means consists of a flexurally elastic, torsionally rigid intermediate piece.
- a drive device having two drive motors, one of which drives a drive motor, the rotation axis of a pin wheel and the other drive motor, the rotation axis of the other pin wheel, and further comprises a control device which controls the two drive motors such that they act together in the manner of a common electric wave, whereby the coupling means is formed by the control device.
- the angular arrangement of the axes of rotation of the two pin wheels should be adjustable.
- a further preferred embodiment of the invention which has at least one scraper for transferring a bent wire section from the loop puller to a pin of one of the two pin carriers, is characterized in that the scraper is designed as a rotatably mounted, substantially circular disc which along along its circumference a control curve is provided which has at least one protruding portion which comes into contact with the bent wire section on the loop puller and pushes it with continued rotation of the disc from the loop puller on a pin of a pin carrier.
- a drive device which sets the wiper in a rotation which is synchronized with the movement of the pin carrier so that the at least one projecting portion of the control cam of the wiper with a bent wire section on the loop puller comes into contact and this from the loop puller presses on a pin of a pin carrier when the angular speed of the loop puller reaches a minimum.
- the scraper is designed as a cup wheel, whose raised in the axial direction edge forms the control cam.
- the scraper may be formed as a swash plate.
- the axis of rotation of the scraper is to be arranged substantially parallel to the axis of rotation of the loop puller.
- the first drive means drives the scraper and puts them in a substantially continuous rotation.
- FIGS. 5 to 7 Figures only partially illustrated wire bending machine described on the basis of the important conventional components, while then using the FIGS. 5 to 7 on the arrangement and operation of an inventively additionally provided guide element according to a preferred embodiment will be discussed in more detail.
- FIGS. 1 . 3 and 4 how the particular FIGS. 1 . 3 and 4 can be seen, two juxtaposed and spaced pin wheels 2, 4 are provided for the wire bending operation, which have the same diameter and on the circumference radially outwardly extending pins 6 and 8 are arranged in a row, the pin rows of pin wheels 2 , 4 have the same pitch, but the pins 6, 8 of the two rows of pins are offset in the direction of rotation of the pin wheels 2, 4 against each other. Furthermore, let the FIGS. 1 and 3 recognize that the pins 6 of the first pin wheel 2 in the circumferential direction have a shorter width than the pins 8 of the second pin wheel 4 and thus the distance between the pins 6 of the first pin wheel 2 is greater than the distance between the pins 8 of the second pin wheel 4.
- This different shape of the pins 6, 8 is determined in the illustrated embodiment by the desired shape of the wire 10 to be bent. However, depending on the desired shape of the wire to be bent and any other shape of the pins 8, 6 conceivable.
- pin wheels can be used in which the width of the pins and / or the distances between the pins in the circumferential direction are equal.
- the pins 6, 8 of the pin wheels 2, 4 have the task to form a continuous wire 10 to a wire comb with loop-shaped sections of substantially hairpin-shaped bent and adjacent tines and with the loop-shaped sections connecting and successively arranged wire sections , in the longitudinal direction of the thus formed wire comb according to the in the FIGS. 1 to 5 each indicated by an arrow A circumferential or rotational direction of the pin wheels 2, 4 run.
- a loop puller 12 For mounting the wire 10 on the pins 6, 8 a loop puller 12 is provided, which sits on a rotatably mounted pivot pin 14 which is coupled to a drive device not described in detail, whereby the loop puller 12 about the axis of rotation of the pivot 14 formed by the axis of rotation 15 is rotated, which is in the FIGS. 1 to 3 and 5 indicated by an arrow B.
- the loop puller 12 is provided in the illustrated embodiment with two with respect to the rotation axis 15 diametrically arranged arms 16, 18, wherein on the first arm 16, a first bending cam 20 and on the second arm 18, a second bending cam 22 is seated.
- the loop puller 12 is positioned adjacent to the circumference of the two pin wheels 2, 4, the bending pins 20, 22 being directed towards the circumference of the pin wheels 2, 4.
- the axis of rotation 15 of the loop puller 12 is directed approximately radially with respect to the pin wheels 2, 4.
- a central head portion 19 is disposed between the loop puller 12 and the second pin wheel 4, which is directed to the periphery and thus the pins 8 of the second pin wheel 4.
- a scraper 24 Adjacent to the circumference of the first pin wheel 2 and the loop puller 12, a scraper 24 is arranged, which is formed in the illustrated embodiment as rotatably mounted and driven pulley whose axis of rotation 25 is approximately parallel to the axis 14 of the loop puller 12.
- the scraper 24 is set in rotation, wherein in the FIGS. 1 . 2 and 5 the direction of rotation of the scraper 24 is indicated by an arrow C.
- the shape of the scraper 24 will be explained in more detail later in the description.
- a corresponding drive device is also provided for the pin wheels 2, 4 in order to set them in rotation about a rotation axis 26 and 28, respectively.
- this drive device is also not shown, so that even a detailed description of this drive device is dispensed with.
- the first bending cam 20 of the loop puller 12 engages behind the wire 10 at a location outside the pins 6, 8 of both pin wheels 2, 4 (in the illustrated embodiment even at a distance from the outside of the second pin wheel 4) and thus at a distance from a location where the wire 10 has already come into a gap between two adjacent pins 8 on the circumference of the second pin wheel 4 (and thus according to FIG FIG. 1 at a place above that place).
- This operating state is in FIG. 1a shown.
- the first bending cam 20 takes the wire 10 with it, whereby the bending process begins. This is FIG. 1b shown.
- Figure 1c indicates that the bending process is almost completed after the first bending cam 20 almost a semicircle movement relative to the state of FIG. 1a has completed. Subsequently, the first bending cam 20 reaches one opposite its position FIG. 1a pivoted by 180 ° position, a transfer of bent from the first bending cam 20 wire section takes place on a corresponding pin 6 of the first pin wheel 2. Here, the scraper 24 is used, which transfers the bent wire section from the first bending cam 20 on the corresponding pin 6. By the way, this transfer is in relation to the second bending cam in FIG. 1 a recognizable. At the same time the second bending cam 22 engages behind the continuously tracked wire 10 at the same previously explained point as the first bending cam 20 according to FIG FIG. 1 a.
- the scraper 24 has a control cam 30 which is provided with a protruding portion 30 a.
- This projecting portion 30a of the control cam 30 comes with continued rotation of the disc-shaped scraper 24 in abutment with that of a bending cam (as shown in FIG FIG. 2 it is the bending cam 20) of the loop puller 12 held, a wire loop forming bent portion of the wire 10 and pushes this bent portion of the wire 10 over a standing Pin 6 of the first pin wheel 2. This simultaneously removes the bent portion of the wire 10 from the corresponding bending cam of the loop puller 12.
- the transfer takes place twice during a 360 ° rotation, namely at an angular distance of 180 °, the control cam 30 of the wiper 24 must have two projecting portions 30a at an angular distance of 180 °.
- the scraper 24 is designed as a cup-shaped swash plate, which has in the axial direction projecting edge on the pin wheel 2 and the control cam 30 forms.
- the loop puller 12 and the scraper 24 rotate synchronously with each other.
- the loop puller 12 For the transfer of the bent portion of the wire 10 and the thus formed wire loop of one of the bending cams 20, 22 on a pen 6 of the first pin wheel 2 ready for this purpose, the loop puller 12 must be braked and thus its rotational speed must be significantly reduced, up to at best a brief stop before then the loop puller 12 is accelerated again. Since in the illustrated embodiment, the loop puller 12 operates with two diametrically opposed bending cams 20, 22, this start-stop operation takes place twice during one revolution of the loop puller 12.
- FIG. 3 can recognize, run the bending cams 20, 22 due to the rotation of the loop puller 12 on a circular path D, whose radius corresponds approximately to the distance between the two pinion wheels 2, 4.
- the axes of rotation 26, 28 of the pin wheels 2, 4 are at a small angle ⁇ to each other, although in the FIGS. 1 to 3 not recognizable, however in FIG. 4 is shown schematically, in which for reasons of clarity, the loop puller 12 and the scraper 24 are omitted.
- This has the consequence that with continued rotation, the distance between the pins 6, 8 initially becomes larger, whereby the laid on the pins 6, 8 wire comb is stretched and the wire comb finally obtains its predetermined shape. Subsequently, the distance between the pins 6, 8 becomes smaller again, which allows a low-friction decrease of the thus formed wire comb of the pins 6, 8, to supply the wire comb for further processing.
- FIG. 4 is the angle ⁇ with respect to the pin wheel 2 slightly inclined position of the pin wheel 4 is shown schematically as a dotted line.
- the sprockets 2, 4 must be replaced for a format change, especially if a different pitch of the pins 6, 8 is required.
- the distance between the two pinwheels 2, 4 should be variable in order to adjust different widths for the wire comb can.
- different spacers can be used, which is not shown in the drawings.
- the axes of rotation 26, 28 of the pin wheels 2, 4 at a small angle ⁇ inclined to each other.
- This angle arrangement should be adjustable, which advantageously supports easy setting and rapid change of format parts.
- the adjustment of the desired angle of the axes of rotation 26, 28 of the two pin wheels 2, 4 to each other with known adjusting means such as manually or motor-driven threaded spindles, linear drives or the like.
- the axes of rotation 26, 28 of the two pin wheels 2, 4 may form a common bending axis.
- a universal joint or a flexurally elastic, torsionally rigid intermediate piece 32 which in FIG. 4 is shown schematically as a dot-dashed element.
- FIG. 4 Furthermore, can be schematically seen, in the illustrated embodiment, only the rotation axis 28 of the remote from the servomotor 34 pin wheel 4 is made adjustable.
- a guide member 40 is also provided, which although for reasons of clarity in the FIGS. 1 to 4 omitted, however, in the FIGS. 5 and 6 is shown in detail recognizable.
- the guide member 40 consists of a highly wear-resistant round material made of tempered tool steel, is arcuately curved and partially surrounds the pivot pin 14 of the loop puller 12.
- the largest part of the guide element 40 has the shape of a partial arc whose center on the axis of rotation 15 of the loop pull 12th lies, how FIG. 5 lets recognize.
- the arcuate guide member 40 can be substantially divided into three sections in the illustrated embodiment, in a fixing portion 40 a, a middle portion forming engagement portion 40 b and an end portion 40 c. As the FIGS. 5 and 6 can be seen, the guide member 40 is attached to the mounting portion 40a on the head part 19, while the end portion 40c forms a free end.
- the head part 19 is arranged stationary and rotationally fixed, whereby the arrangement and orientation the arcuate guide member 40 relative to the other components and in particular with respect to the row of pins 8 carrying the circumference of the second pin wheel 4 is stationary.
- the stationary and rotationally fixed arrangement of the head part 19 can be achieved, for example, that the pivot pin 14 of the loop puller 12 is formed as a hollow pin through which a bearing pin, not shown in the figures, whose one end carries the head portion 19, while the bearing pin with its other end fixed to an external holder and thus not only a stationary bearing for the head part 19 and thus the guide member 40, but also a bearing for the rotational support of the pivot 14 of the loop puller 12 can form.
- the arcuate guide member 40 outside (and according to the FIGS. 5 and 6 above) of the row of pins 8.
- the guide member 40 is a little inclined in the direction of the second pin 4, by the radial distance of the engaging portion 40b from the second pin 4 and the axis of rotation is less than the radial distance of the mounting portion 40a of the second pin 4 and its axis of rotation.
- the radial distance of the free end forming end portion 40c of the guide member 40 is approximately equal to the radial distance of the mounting portion 40a of the second pin wheel 4 and its axis of rotation.
- FIG. 5 reveals the end portion 40c of the guide member 40 adjacent to the outside of the row of pins 8, wherein the above-mentioned dimensioning of the radial distance in the radial direction creates a gap between the end portion 40c of the guide member 40 and the pins 8.
- the wire 10 can be easily spend by means of the arcuate guide member 40 in the desired gap between two adjacent pins 8 on the circumference of the second pin wheel 4 by 12 during the rotation of the loop puller wire 10 in contact with the Guide member 40 passes, in abutment with the second pin wheel 4 facing side of the arcuate guide member 40.
- the wire 10 remains substantially during its entire movement along the arcuate guide member 40 with this in touching contact.
- FIG. 5 shows an operating state similar to that in FIG. 1 a shown operating condition, so that in this respect to the explanations to FIG. 1a
- the loop puller 12 is not shown completely, but only schematically its arms 16, 18 are shown.
- the wire 10 while in abutting engagement with the guide member 40, moves between the end portion 40c and the engaging portion 40b of the arcuate guide member 40 alternately in one direction and the other direction out.
- the wire 10 depending on the rotational position of the loop puller 12 in the region of the end portion 40c, either abuts against the guide element 40 or out of contact therewith.
- the radial distance of the engagement portion 40b of the guide member 40 from the second pin wheel 4 and thus also from the rotation axis thereof is smaller than the corresponding radial distance of both the attachment portion 40a and the end portion 40c of the arcuate guide member 40 and accordingly also smaller than the corresponding radial distance of the plane not shown in the figures, in which the wire 10 is in the relaxed state, the engaging portion 40b of the guide member 40 exerts a pressure on the wire 10 toward the second pin wheel 4 and thus pushes the wire 10 toward the row of pins 8, such as FIG. 6 lets recognize.
- the wire 10 With continued rotational movement of the loop puller 12 from the in FIG. 5 and 1a As shown, the wire 10 is entrained by the engaging portion 40b toward the end portion 40c, making a corresponding pivotal movement and thus having an approximately radial orientation throughout its movement along the arcuate guide member 40. While in the Figures 5 . 1a and 1b shown rotational positions of the loop puller 12, the wire 10 still remains in touching contact with the arcuate guide member 40. If, with continued rotation of the loop puller 12 whose angular distance from the in FIG. 5 and FIG. 1a shown rotational position rises significantly above 90 °, the wire 10 leaves the arcuate guide member 40 via the end portion 40c.
- the engaging portion 40b presses the wire 10 so much into the gap that with a continued rotation of the loop puller 12 from the in the FIGS. 1a and 5 shown rotational position (according to both figures to the left or counterclockwise) of the wire 10 to the respective (according to FIG. 5 located closest to the left of the wire 10) pin 8 is pivoted and bent or kinked while the engagement of the wire 10 is ensured in the corresponding gap and with the said pin and thus unwanted jumping out of the wire 10 is prevented from the gap during the bending process ,
- Wire guide plate 42 is provided, from the in FIG. 5 only a part is shown recognizable. As FIG. 5 Furthermore, except for a tongue-shaped section 42a, the wire guide plate 42 is in the region of the circular path D described by the bending cams 20, 22 due to the rotation of the loop puller 12 (cf. FIG. 3 ) left out.
- the tongue-shaped portion 42a extends in the manner of a projection under the end portion 40c of the guide member 40 in the circumferential direction of the second pin wheel 4 and thus over the row of pins 8 along in the direction of the axis of rotation 15 of the loop puller 12, ending shortly before this axis of rotation 15 between the head part 19 and the second pin wheel 4 like FIG.
- the distance between the tongue-shaped portion 42 a of the wire guide plate 42 and the end portion 40 c of the arcuate guide member 40 is larger and forms a gap, the unimpeded passage of the wire 10 on the second pin wheel 4 facing inside the end portion 40c of the guide member 40 allowed in the manner described above.
- the tongue-shaped portion 42a of the wire guide plate 42 serves as a kind of cover for the pins 8 and at this point prevents unwanted engagement of the wire 10 with one of the pins 8 as the wire 10 passes the end portion 40c of the arcuate guide member 40 to either in contact Appendix to the guide member 40 or out of order to get from this.
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Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum schleifenförmigen Biegen eines fortlaufenden Drahtes zu einem Drahtkamm mit schleifenförmigen Abschnitten aus im wesentlichen haarnadelförmig gebogenen und nebeneinander liegenden Zinken und mit die schleifenförmigen Abschnitte verbindenden, in Längsrichtung des Drahtkammes verlaufenden und hintereinander angeordneten Drahtabschnitten, mit zwei voneinander beabstandeten und synchron zueinander bewegten Stiftträgern, die jeweils eine Reihe von in Bewegungsrichtung hintereinander liegenden Stiften tragen, wobei die Stiftreihen im wesentlichen dieselbe Teilung haben, jedoch die Stifte der beiden Stiftreihen in Bewegungsrichtung der Stiftträger gegeneinander versetzt sind, und mit einem um eine Drehachse drehbar gelagerten Schlingenzieher zum schleifenförmigen Legen des Drahtes nacheinander abwechselnd um einen Stift der einen Stiftreihe und einen Stift der anderen Stiftreihe.The invention relates to a device for looping a continuous wire to a wire comb with loop-shaped sections of substantially hairpin-shaped bent and adjacent tines and with the loop-shaped sections connecting, extending in the longitudinal direction of the wire comb and successively arranged wire sections, with two spaced apart and synchronous moving pin carriers, each carrying a number of consecutive pins in the direction of movement, wherein the rows of pins have substantially the same pitch, but the pins of the two rows of pins are offset in the direction of movement of the pin carrier against each other, and with a rotatably mounted about an axis of rotation loop loops for loop-laying the wire in turn alternately around a pin of a row of pins and a pin of the other row of pins.
Drahtkämme der vorgenannten Art werden insbesondere zum Binden vom Papierblöcken verwendet, indem die Drahtkämme nach ihrer Herstellung durch eine Vorrichtung der zuvor genannten Art in nachfolgenden bzw. nachgeschalteten Vorrichtungen zunächst C-förmig vorgebogen und in Drahtkammabschnitte unterteilt und dann in die im Bereich eines Seitenrandes der Papierblöcke eingebrachten Löcher eingeführt und geschlossen werden.Wire combs of the aforementioned type are used in particular for binding the paper blocks by the wire combs after their manufacture by a device of the aforementioned type in subsequent or downstream Devices are first pre-bent C-shaped and divided into wire comb sections and then inserted and closed in the introduced in the region of a side edge of the paper blocks holes.
Eine Vorrichtung der eingangs genannten Art ist aus der
In der
Aus der
In der
In der
Es ist Aufgabe der vorliegenden Erfindung, für den Eingriff des Drahtes in die Stiftreihe eines der Stiftträger eine vereinfachte Maßnahme vorzuschlagen, die die Verwendung eines reziprok bewegbar gelagerten und nach Art eines Stößels arbeitenden Elementes überflüssig macht.It is an object of the present invention to propose a simplified measure for the engagement of the wire in the pin row of the pin carrier, which makes the use of a reciprocally movably mounted and working like a plunger element superfluous.
Diese Aufgabe wird gelöst durch eine Vorrichtung zum schleifenförmigen Biegen eines fortlaufenden Drahtes zu einem Drahtkamm mit schleifenförmigen Abschnitten aus im wesentlichen haarnadelförmig gebogenen und nebeneinander liegenden Zinken und mit die schleifenförmigen Abschnitte verbindenden, in Längsrichtung des Drahtkammes verlaufenden und hintereinander angeordneten Drahtabschnitten, mit zwei voneinander beabstandeten und synchron zueinander bewegten Stiftträgern, die jeweils eine Reihe von in Bewegungsrichtung hintereinander liegenden Stiften tragen, wobei die Stiftreihen im wesentlichen dieselbe Teilung haben, jedoch die Stifte der beiden Stiftreihen in Bewegungsrichtung der Stiftträger gegeneinander versetzt sind, und mit einem um eine Drehachse drehbar gelagerten Schlingenzieher zum schleifenförmigen Legen des Drahtes nacheinander abwechselnd um einen Stift der einen Stiftreihe und einen Stift der anderen Stiftreihe, dadurch gekennzeichnet, dass der Schlingenzieher gegenüber den Stiftträgern ortsfest angeordnet und mindestens ein Führungselement vorgesehen ist, das ebenfalls gegenüber den Stiftträgern ortsfest angeordnet und für eine Führung des Drahtes in Eingriff mit mindestens einer Stiftreihe ausgebildet ist.This object is achieved by a device for looping a continuous wire to a wire comb with loop-shaped sections of substantially hairpin-shaped bent and adjacent prongs and with the loop-shaped sections connecting, extending in the longitudinal direction of the wire comb and successively arranged wire sections, with two spaced apart and Synchronously moved to each other pin carriers, each carrying a number of consecutive pins in the direction of movement, wherein the rows of pins have substantially the same pitch, but the pins of the two rows of pins are offset in the direction of movement of the pin carrier against each other, and with a rotatably mounted about an axis of rotation loop buckles Loop-shaped laying of the wire successively alternately around a pin of a row of pins and a pin of the other row of pins, characterized in that the loop puller geg arranged stationary over the pin carriers and at least one guide element is provided, which is also arranged stationary relative to the pin carriers and is designed for guiding the wire into engagement with at least one row of pins.
Demnach schlägt die Erfindung vor, ein ortsfest angeordnetes Führungselement zu verwenden, das für den geführten Eingriff des Drahtes in mindestens eine Stiftreihe ausgebildet ist. Die Verwendung eines solchen erfindungsgemäßen Führungselementes bedingt eine wesentlich einfachere Konstruktion als die Verwendung eines bewegbar gelagerten Stößels oder gar eines bewegbar gelagerten Schlingenziehers mit einem als Stößel ausgebildeten Kopfteil. Vielmehr ist erfindungsgemäß auch der Schlingenzieher gegenüber den Stiftträgern ortsfest angeordnet und benötigt lediglich eine drehbare Lagerung zur Schlingenbildung des Drahtes. Somit führt die Erfindung zu einem einfacheren und kostengünstigeren Aufbau und zugleich zu einem wirkungsvolleren und zuverlässigeren Betrieb der Vorrichtung.Accordingly, the invention proposes to use a stationary arranged guide element, which is designed for the guided engagement of the wire in at least one row of pins. The use of such a guide element according to the invention requires a much simpler construction than the use of a movably mounted plunger or even a movably mounted loop puller with a designed as a plunger head part. Rather, according to the invention, the loop puller is also fixed in relation to the pin carriers and only requires a rotatable support for looping the wire. Thus, the invention leads to a simpler and less expensive construction and at the same time to a more effective and reliable operation of the device.
Bevorzugte Ausführungen und Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.Preferred embodiments and further developments of the invention are specified in the dependent claims.
Bevorzugt können Mittel zur drehfesten Kopplung der Drehachsen der beiden Stiftträger verwendet werden.Preferably, means for the rotationally fixed coupling of the axes of rotation of the two pin carriers can be used.
Bei einer ersten alternativen Weiterbildung dieser Ausführung ist eine Antriebseinrichtung vorgesehen, die nur die Drehachse eines der beiden Stifträder antreibt, und bilden die Drehachsen beider Stiftträger eine gemeinsame Knickachse, wodurch das Kopplungsmittel vom abgewinkelten Verbindungsabschnitt der Knickachse gebildet ist.In a first alternative development of this embodiment, a drive device is provided, which drives only the axis of rotation of one of the two pinion wheels, and form the axes of rotation of both pin carrier a common bending axis, whereby the coupling means is formed by the angled connecting portion of the bending axis.
Bei einer zweiten alternativen Weiterbildung ist eine Antriebseinrichtung vorgesehen, die nur die Drehachse eines der Stiftträger antreibt, wobei das Kopplungsmittel aus einem Kreuzgelenk besteht.In a second alternative development, a drive device is provided which drives only the axis of rotation of one of the pin carriers, wherein the coupling means consists of a universal joint.
Bei einer dritten alternativen Weiterbildung ist eine Antriebseinrichtung vorgesehen, die nur die Drehachse eines der Stifträder antreibt, wobei das Kopplungsmittel aus einem biegeelastischen, torsionssteifen Zwischenstück besteht.In a third alternative development, a drive device is provided which drives only the axis of rotation of one of the pin wheels, wherein the coupling means consists of a flexurally elastic, torsionally rigid intermediate piece.
Bei einer vierten alternativen Weiterbildung sind eine Antriebseinrichtung, die zwei Antriebsmotoren aufweist, von denen der eine Antriebsmotor die Drehachse des einen Stiftrades und der andere Antriebsmotor die Drehachse des anderen Stiftrades antreibt, und ferner eine Steuerungseinrichtung vorgesehen, die die beiden Antriebsmotoren derart steuert, dass sie zusammen nach Art einer gemeinsamen elektrischen Welle wirken, wodurch das Kopplungsmittel von der Steuerungseinrichtung gebildet ist.In a fourth alternative development, a drive device having two drive motors, one of which drives a drive motor, the rotation axis of a pin wheel and the other drive motor, the rotation axis of the other pin wheel, and further comprises a control device which controls the two drive motors such that they act together in the manner of a common electric wave, whereby the coupling means is formed by the control device.
Zweckmäßigerweise sollte die Winkelanordnung der Drehachsen der beiden Stifträder einstellbar sein.Conveniently, the angular arrangement of the axes of rotation of the two pin wheels should be adjustable.
Eine weitere bevorzugte Ausführung der Erfindung, welche mindestens einen Abstreifer zur Übergabe eines gebogenen Drahtabschnittes vom Schlingenzieher auf einen Stift eines der beiden Stiftträger aufweist, ist dadurch gekennzeichnet, dass der Abstreifer als drehbar gelagerte, im wesentlichen kreisförmige Scheibe ausgebildet ist, die entlang ihres Umfanges mit einer Steuerkurve versehen ist, welche mindestens einen vorstehenden Abschnitt aufweist, der mit dem gebogenen Drahtabschnitt auf dem Schlingenzieher in Anlage gelangt und diese bei fortgesetzter Rotation der Scheibe vom Schlingenzieher auf einen Stift eines Stiftträgers drückt.A further preferred embodiment of the invention, which has at least one scraper for transferring a bent wire section from the loop puller to a pin of one of the two pin carriers, is characterized in that the scraper is designed as a rotatably mounted, substantially circular disc which along along its circumference a control curve is provided which has at least one protruding portion which comes into contact with the bent wire section on the loop puller and pushes it with continued rotation of the disc from the loop puller on a pin of a pin carrier.
Bei einer Weiterbildung dieser Ausführung ist eine Antriebseinrichtung vorgesehen, die den Abstreifer in eine Rotation versetzt, welche mit der Bewegung der Stiftträger so synchronisiert ist, dass der mindestens eine vorstehende Abschnitt der Steuerkurve des Abstreifers mit einem gebogenen Drahtabschnitt auf dem Schlingenzieher in Anlage gelangt und diesen vom Schlingenzieher auf einen Stift eines Stiftträgers drückt, wenn die Winkelgeschwindigkeit des Schlingenziehers ein Minimum erreicht.In a further development of this embodiment, a drive device is provided which sets the wiper in a rotation which is synchronized with the movement of the pin carrier so that the at least one projecting portion of the control cam of the wiper with a bent wire section on the loop puller comes into contact and this from the loop puller presses on a pin of a pin carrier when the angular speed of the loop puller reaches a minimum.
Vorzugsweise ist der Abstreifer als Topfscheibe ausgebildet, deren in axialer Richtung erhabener Rand die Steuerkurve bildet.Preferably, the scraper is designed as a cup wheel, whose raised in the axial direction edge forms the control cam.
Alternativ oder zusätzlich kann der Abstreifer als Taumelscheibe ausgebildet sein.Alternatively or additionally, the scraper may be formed as a swash plate.
Bevorzugt ist die Drehachse des Abstreifers im wesentlichen parallel zur Drehachse des Schlingenziehers anzuordnen.Preferably, the axis of rotation of the scraper is to be arranged substantially parallel to the axis of rotation of the loop puller.
Zweckmäßigerweise treibt die erste Antriebseinrichtung den Abstreifer an und versetzt diese in eine im wesentlichen kontinuierliche Rotation.Conveniently, the first drive means drives the scraper and puts them in a substantially continuous rotation.
Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der beiliegenden Zeichnungen näher erläutert. Es zeigen:
- Figur 1
- in perspektivischer Darstellung schematisch und teilweise abschnitt- sweise eine aus zwei Stifträdern, einen Schlingenzieher und einen Abstreifer gebildete Baugruppe in drei verschiedenen Betriebszu- ständen während des schleifenförmigen Biegens eines fortlaufenden Drahtes, wobei ein erfindungsgemäß noch vorzusehendes Füh- rungselement nicht dargestellt ist;
Figur 2- in vergrößerter ausschnittsweiser Ansicht schematisch die Ausbil- dung des Abstreifers mit einer Steuerkurve und dessen Zusammen- wirken mit der Zahnreihe eines teilweise dargestellten Stiftrades und des Schlingenziehers, wobei auch hier nicht zuletzt aus Gründen der besseren Übersicht ein erfindungsgemäß noch vorzusehendes Füh- rungselement weggelassen ist;
- Figur 3
- in vergrößerter perspektivischer Darstellung schematisch einen Teil der Stiftreihen der Stifträder und die radiale Anordnung der Biegeno- cken des Schlingenziehers während ihrer kreisförmigen Bewegung;
Figur 4- in vergrößerter radialer Ansicht schematisch eine geringfügig zuei- nander geneigte Anordnung der beiden Stifträder mitsamt einem Servoantrieb;
- Figur 5
- schematisch einen Abschnitt der Stifträder in radialer Ansicht auf den zugehörigen Teil der Stiftreihen, die radialen Endabschnitte der Arme des Schlingenziehers in axialer Ansicht sowie ein erfindungsgemäß vorgesehenes Führungselement gemäß einer bevorzugten Ausfüh- rung in vollständiger Seitenansicht sowie abschnittsweise den Ab- streifer und eine Drahtführungsplatte in Seitenansicht;
Figur 6- eine gegenüber der Darstellung von
Figur 5 um 90° gedrehte Ansicht; und - Figur 7
- einen Schnitt durch die in
Figur 5 gezeigte Anordnung entlang der Line VII-VII.
- FIG. 1
- schematically in perspective and partially in sections a pair formed from two pinion wheels, a loop puller and a scraper assembly in three different operating conditions during the loop-shaped bending of a continuous Wire, wherein a guide element still to be provided according to the invention is not shown;
- FIG. 2
- in an enlarged fragmentary view schematically the training of the scraper with a control cam and its interaction with the row of teeth of a partially illustrated pin wheel and the loop puller, which also not shown here for reasons of clarity, a invention still be provided for leadership element is omitted;
- FIG. 3
- in an enlarged perspective view schematically a part of the pin rows of the pin wheels and the radial arrangement of the bending corners of the loop puller during its circular movement;
- FIG. 4
- in an enlarged radial view schematically a slightly zuei- mutually inclined arrangement of the two pin wheels together with a servo drive;
- FIG. 5
- schematically a section of the pin wheels in a radial view of the associated part of the pin rows, the radial end portions of the arms of the loop puller in axial view and a guide element according to the invention provided according to a preferred embodiment in complete side view and sections the scraper and a wire guide plate in side view ;
- FIG. 6
- one opposite the representation of
FIG. 5 rotated by 90 ° view; and - FIG. 7
- a section through the in
FIG. 5 shown arrangement along the line VII-VII.
Zunächst wird anhand der
Figuren nur teilweise dargestellten Drahtbiegemaschine anhand der wichtigen herkömmlichen Komponenten beschrieben, während dann anhand der
Wie insbesondere die
Wie
Zum Aufziehen des Drahtes 10 auf die Stifte 6, 8 ist ein Schlingenzieher 12 vorgesehen, der auf einem drehbar gelagerten Drehzapfen 14 sitzt, der mit einer nicht näher beschriebenen Antriebsvorrichtung gekoppelt ist, wodurch der Schlingenzieher 12 um die von der Mittelachse des Drehzapfes 14 gebildete Drehachse 15 in Rotation versetzt wird, was in den
Ferner ist zwischen dem Schlingenzieher 12 und dem zweiten Stiftrad 4 ein zentrales Kopfteil 19 angeordnet, das auf den Umfang und somit die Stifte 8 des zweiten Stiftrades 4 gerichtet ist.Further, a
Benachbart zum Umfang des ersten Stiftrades 2 und zum Schlingenzieher 12 ist ein Abstreifer 24 angeordnet, der im dargestellten Ausführungsbeispiel als rotierbar gelagerte und angetriebene Scheibe ausgebildet ist, deren Drehachse 25 etwa parallel zur Achse 14 des Schlingenziehers 12 verläuft. Durch eine nicht näher gezeigte Antriebsvorrichtung wird der Abstreifer 24 in Rotation versetzt, wobei in den
An dieser Stelle sei der guten Vollständigkeit halber noch ergänzend angemerkt, dass auch für die Stifträder 2, 4 eine entsprechende Antriebsvorrichtung vorgesehen ist, um diese in Rotation um eine Drehachse 26 bzw. 28 zu versetzen. Diese Antriebsvorrichtung ist allerdings ebenfalls nicht dargestellt, so dass auch auf eine detaillierte Beschreibung dieser Antriebsvorrichtung verzichtet wird.At this point, for the sake of completeness, it should additionally be noted that a corresponding drive device is also provided for the
Für die Formung des Drahtkammes aus dem fortlaufend nachgeführten Draht 10 hintergreift der erste Biegenocken 20 des Schlingenziehers 12 den Draht 10 an einer Stelle außerhalb der Stifte 6, 8 beider Stifträder 2, 4 (im dargestellten Ausführungsbeispiel sogar in einem Abstand von der Außenseite des zweiten Stiftrades 4) und somit in einem Abstand von einem Ort, an dem der Draht 10 bereits in eine Lücke zwischen zwei benachbarten Stiften 8 am Umfang des zweiten Stiftrades 4 gelangt ist (und somit gemäß
Bei fortgesetzter Rotation des Schlingenziehers 12 nimmt der erste Biegenocken 20 den Draht 10 mit, wodurch der Biegevorgang einsetzt. Dies ist
Wie
Da im dargestellten Ausführungsbeispiel die Übergabe während einer 360°-Rotation zweimal erfolgt, nämlich in einem Winkelabstand von 180°, muss die Steuerkurve 30 des Abstreifers 24 in einem Winkelabstand von 180° zwei vorstehende Abschnitte 30a aufweisen.Since in the illustrated embodiment, the transfer takes place twice during a 360 ° rotation, namely at an angular distance of 180 °, the
Vorzugsweise ist der Abstreifer 24 als topfförmige Taumelscheibe ausgebildet, deren in axialer Richtung vorstehender Rand auf das Stiftrad 2 weist und die Steuerkurve 30 bildet.Preferably, the
Ferner rotieren im dargestellten Ausführungsbeispiel der Schlingenzieher 12 und der Abstreifer 24 synchron zueinander. Somit bietet es sich an, die Antriebsvorrichtung für den Schlingenzieher 12 auch ferner noch zum Antrieb des Abstreifers 24 zu verwenden, was in den Figuren jedoch ebenfalls nicht dargestellt ist.Furthermore, in the illustrated embodiment, the
Für die Übergabe des gebogenen Abschnittes des Drahtes 10 bzw. der so gebildeten Drahtschlaufe von einem der Biegenocken 20, 22 auf einen hierfür bereitstehenden Stift 6 des ersten Stiftrades 2 muss der Schlingenzieher 12 abgebremst und somit dessen Drehgeschwindigkeit erheblich verringert werden, und zwar bestenfalls bis zu einem kurzzeitigen Stillstand, bevor anschließend der Schlingenzieher 12 wieder beschleunigt wird. Da im dargestellten Ausführungsbeispiel der Schlingenzieher 12 mit zwei diametral zueinander angeordneten Biegenocken 20, 22 arbeitet, findet dieser Start-Stop-Betrieb zweimal während einer Umdrehung des Schlingenziehers 12 statt.For the transfer of the bent portion of the
Wie
Für die fortlaufende Bildung des Drahtkammes ist es wichtig, dass die beiden Stifträder 2, 4 synchron zueinander rotieren und dementsprechend synchron angetrieben werden.For the continuous formation of the wire comb, it is important that the two
Die Drehachsen 26, 28 der Stifträder 2, 4 stehen in einem kleinen Winkel α zueinander, was zwar in den
In der Regel müssen für eine Formatänderung die Stifträder 2, 4 ausgewechselt werden, insbesondere wenn eine andere Teilung der Stifte 6, 8 erforderlich ist. Alternativ oder zusätzlich sollte auch der Abstand zwischen den beiden Stifträdern 2, 4 veränderlich sein, um unterschiedliche Breiten für den Drahtkamm einstellen zu können. Hierzu können beispielsweise unterschiedliche Abstandshülsen zum Einsatz kommen, was in den Zeichnungen allerdings nicht dargestellt ist.In general, the
Wie bereits zuvor anhand von
Die Drehachsen 26, 28 der beiden Stifträder 2, 4 können eine gemeinsame Knickachse bilden. Alternativ ist es aber auch denkbar, zur Kopplung der beiden Drehachsen 26, 28 ein Kreuzgelenk oder ein biegeelastisches, torsionssteifes Zwischenstück 32 zu verwenden, welches in
Alternativ ist es aber auch denkbar, für jedes Stiftrad 2 und 4 einen separaten Antriebsmotor zu verwenden und eine Steuerungseinrichtung vorzusehen, die diese beiden Antriebsmotoren derart steuert, dass sie zusammen nach Art einer gemeinsamen elektrischen Welle wirken.Alternatively, it is also conceivable to use a separate drive motor for each
Um den Draht 10 in eine gewünschte Lücke zwischen zwei benachbarten Stiften 8 des zweiten Stiftrades 4 zu verbringen, ist ferner ein führungselement 40 vorgesehen, welches zwar aus Gründen der besseren Übersichtlichkeit in den
Das bogenförmige Führungselement 40 kann im dargestellten Ausführungsbeispiel im wesentlichen in drei Abschnitte unterteilt werden, und zwar in einen Befestigungsabschnitt 40a, einen einen mittleren Abschnitt bildenden Eingriffsabschnitt 40b und einen Endabschnitt 40c. Wie die
Wie
Im dargestellten Ausführungsbeispiel ist der radiale Abstand des ein freies Ende bildenden Endabschnittes 40c des Führungselementes 40 etwa gleich dem radialen Abstand des Befestigungsabschnittes 40a von dem zweiten Stiftrad 4 bzw. dessen Drehachse. Wie
Aufgrund der zuvor beschriebenen Anordnung lässt sich der Draht 10 auf einfache Weise mit Hilfe des bogenförmigen Führungselementes 40 in die gewünschte Lücke zwischen zwei benachbarten Stiften 8 am Umfang des zweiten Stiftrades 4 verbringen, indem während der Rotation des Schlingenziehers 12 der Draht 10 in Berührung mit dem Führungselement 40 gelangt, und zwar in Anlage an die zum zweiten Stiftrad 4 weisenden Seite des bogenförmigen Führungselementes 40. Dabei bleibt der Draht 10 im wesentlichen während seiner gesamten Bewegung entlang des bogenförmigen Führungselementes 40 mit diesem in berührender Anlage.Due to the arrangement described above, the
Da demgegenüber, wie bereits zuvor erläutert wurde, der radiale Abstand des Eingriffsabschnittes 40b des Führungselementes 40 vom zweiten Stiftrad 4 und somit auch von dessen Drehachse kleiner ist als der entsprechende radiale Abstand sowohl des Befestigungsabschnittes 40a als auch des Endabschnittes 40c des bogenförmigen Führungselementes 40 und demnach auch kleiner als der entsprechende radiale Abstand der in den Figuren nicht dargestellten Ebene, in der sich der Draht 10 im entspannten Zustand befindet, übt der Eingriffsabschnitt 40b des Führungselementes 40 einen Druck auf den Draht 10 in Richtung auf das zweite Stiftrad 4 aus und drückt somit den Draht 10 in Richtung auf die Reihe der Stifte 8, wie
Bei fortgesetzter Rotationsbewegung des Schlingenziehers 12 aus der in
Wenn bei fortgesetzter Rotation der Schlingenzieher 12 etwa die in
Dabei drückt der Eingriffsabschnitt 40b den Draht 10 derart stark in die Lücke, dass bei einer fortgesetzten Rotation des Schlingenziehers 12 aus der in den
Ferner ist eine sog. Drahtführungsplatte 42 vorgesehen, von der in
Claims (15)
- A device for loop-shaped bending of a continuous wire (10) to form a wire comb having loop-shaped portions comprising mutually adjacent prongs which are bent substantially in the shape of a hairpin and having wire portions which are arranged one after another, extend in the longitudinal direction of the wire comb and connect the loop-shaped portions,
having two mutually spaced peg carriers (2, 4) which are moved synchronously with one another and each carry a row of pegs (6, 8) positioned one after another in the movement direction, wherein the rows of pegs have substantially the same spacing although the pegs (6, 8) of the two rows of pegs are mutually offset in the movement direction of the peg carriers (2, 4), and
having a loop snag (12) which is mounted such that it is rotatable about an axis of rotation (15) for placing the wire (10) in a loop shape around a peg (6) of the one row of pegs and a peg (8) of the other row of pegs in successive alternation,
characterised in that the loop snag (12) is arranged in fixed manner relative to the peg carriers (2, 4) and at least one guide element (40) is provided, which is likewise arranged in fixed manner relative to the peg carriers (2, 4) and is constructed to guide the wire (10) into engagement with at least one row of pegs (8). - A device according to Claim 1,
characterised in that the guide element (40) having at least one first portion (40b) effecting the engagement of the wire (10) in at least one row of pegs (8) is arranged at a spacing from this at least one row of pegs (8). - A device according to Claim 1 or 2,
characterised in that the guide element (40) is constructed such that the wire (10) may be brought into contact with the guide element (40). - A device according to one of the preceding claims,
characterised in that the guide element (40) is constructed to guide the wire (10) into the plane of the at least one row of pegs (8). - A device according to Claim 4,
characterised in that at least a first portion (40b) of the guide element (40) is located approximately at the height or in the plane of the at least one row of pegs (8). - A device according to Claim 2 or 5,
characterised in that the guide element (40) has an end portion (40c) and is constructed in such a way that the wire (10) may be guided along the guide element (40) at least from the first portion (40b) to this end portion (40c), and this end portion (40c) is arranged adjacent to the row of pegs (8) and at such a spacing from the row of pegs (8) that a clearance through which the wire (10) may be guided is formed between this end portion (40c) and the row of pegs (8). - A device according to Claim 6,
characterised by a wire guide plate (42) whereof a portion (42a) is located between the row of pegs (8) and the end portion (40c) of the guide element (40). - A device according to one of the preceding claims,
characterised in that the guide element (40) is curved. - A device according to one of the preceding claims,
characterised in that the guide element (40) at least partially surrounds the axis of rotation (15) of the loop snag (12). - A device according to Claims 8 and 9,
characterised in that the guide element (40), at least in portions, forms a partial circular arc whereof the centre point is located on the axis of rotation (15) of the loop snag (12). - A device according to one of the preceding claims,
characterised in that the guide element (40) is constructed substantially in a rod shape. - A device according to one of the preceding claims,
characterised in that the peg carriers are constructed as two adjacently arranged and mutually spaced peg wheels (2, 4) which are mounted such that they are rotatable about an axis of rotation (26, 28) and are moved synchronously with one another and on the circumference of which the pegs (6, 8) are arranged such that they extend radially outwards in a row. - A device according to Claim 4 and according to Claim 12,
characterised in that the first portion (40b) of the guide element (40) is arranged at a radial spacing from the axis of rotation of that peg wheel (4) in the pegs (8) of which the wire (10) is brought into engagement by the guide element (40), wherein the radial spacing of the first portion (40b) of the guide element (40) corresponds approximately to the radial spacing between that row of pegs (8) and the axis of rotation (28). - A device according to Claim 13,
characterised in that the guide element (40) has two end portions (40a, 40c) between which the first portion (40b) is located, and the radial spacing between the two end portions (40a, 40c) of the guide element (40) and the axis of rotation (28) is greater than the radial spacing between the first portion (40b) and the axis of rotation (28). - A device according to Claim 14,
characterised in that the radial spacing of the end portions (40a, 40c) of the guide element (40) is greater than the radial spacing of the row of pegs (8) in such a way that the end portions (40a, 40c) do not effect an engagement of the wire (10) in the row of pegs (8).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008025663A DE102008025663B3 (en) | 2008-05-28 | 2008-05-28 | Apparatus for loop bending a continuous wire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2127776A1 EP2127776A1 (en) | 2009-12-02 |
EP2127776B1 true EP2127776B1 (en) | 2011-01-19 |
Family
ID=41058685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP09006671A Active EP2127776B1 (en) | 2008-05-28 | 2009-05-18 | Device for looped-shaped bending of a continuous wire |
Country Status (4)
Country | Link |
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EP (1) | EP2127776B1 (en) |
CN (1) | CN101623740B (en) |
AT (1) | ATE495836T1 (en) |
DE (2) | DE102008025663B3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103785772B (en) * | 2014-01-25 | 2015-07-15 | 西安建筑科技大学 | Minor-diameter cored wire bender |
DE102015122493B4 (en) | 2015-12-22 | 2023-01-19 | Karl Storz Se & Co. Kg | Assistive device for tying a surgical knot |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2003600A1 (en) * | 1969-05-05 | 1969-11-07 | Liouville Roger | |
US3691808A (en) * | 1970-05-15 | 1972-09-19 | Mead Corp | Wire forming machine |
US3805579A (en) * | 1970-05-15 | 1974-04-23 | Mead Corp | Wire forming method |
DE2234298C3 (en) * | 1972-07-12 | 1981-08-13 | The Mead Corp., 45463 Dayton, Ohio | Method and device for corrugating wire |
US4047544A (en) * | 1976-12-27 | 1977-09-13 | The Mead Corporation | Wire forming apparatus |
DE2908223C2 (en) * | 1979-03-02 | 1982-12-02 | Bielomatik Leuze Gmbh + Co, 7442 Neuffen | Method and apparatus for producing a zigzag-shaped ribbon from wire |
US4373558A (en) * | 1980-09-24 | 1983-02-15 | Spiral Binding Company, Inc. | Bookbinding wire stock production method and apparatus |
DE10328956A1 (en) * | 2003-06-27 | 2005-01-20 | Elmotec Statomat Vertriebs Gmbh | Method and device for introducing wave windings in rotor and stator lamination packages of electrical machines |
DE102006015809A1 (en) * | 2006-04-03 | 2007-10-04 | Kugler-Womako Gmbh | Device for bending an advancing wire into a wire cog with hoop-like sections comprises a drive unit with a planetary gear and a drive for pivoting a planetary wheel support |
-
2008
- 2008-05-28 DE DE102008025663A patent/DE102008025663B3/en not_active Expired - Fee Related
-
2009
- 2009-05-18 EP EP09006671A patent/EP2127776B1/en active Active
- 2009-05-18 AT AT09006671T patent/ATE495836T1/en active
- 2009-05-18 DE DE502009000299T patent/DE502009000299D1/en active Active
- 2009-05-27 CN CN200910163906.4A patent/CN101623740B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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EP2127776A1 (en) | 2009-12-02 |
CN101623740A (en) | 2010-01-13 |
CN101623740B (en) | 2014-04-30 |
ATE495836T1 (en) | 2011-02-15 |
DE502009000299D1 (en) | 2011-03-03 |
DE102008025663B3 (en) | 2009-12-03 |
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