CN101077514A

CN101077514A - Device for line-returnedly bending a continuous wire rod

Info

Publication number: CN101077514A
Application number: CNA2007100916732A
Authority: CN
Inventors: H·鲁什
Original assignee: Kugler Womako GmbH
Current assignee: Kugler Womako GmbH
Priority date: 2006-04-03
Filing date: 2007-04-03
Publication date: 2007-11-28
Anticipated expiration: 2027-04-03
Also published as: DE502007004228D1; ATE472382T1; EP1842606B1; EP1842606A1; DE102006015809A1; CN100548529C

Abstract

The invention relates to a device by which a wire is bent into a wire comb. The invention is provided with pin bearing parts which are respectively provided with a row of pins; the pins of the two rows are staggered to each other in the motion direction of the pin bearing parts. The device is also provided with a return wire drawer used for paving the wires surrounding the pins, and a first driving device used for driving the return wire drawer. The first driving device is provided with a planetary transmission device which is provided with a first wheel which is basically and permanently driven, at least a second wheel which is engaged with the first wheel and is rotatablely supported on a planetary wheel bracket to be taken as the planetary wheel and a third wheel which is coaxially and rotatablely supported correspondingly to the first wheel and is engaged with at least one second wheel and can rotatablely drive the return wire drawer; the planetary wheel bracket is rotatablely supported by surrounding a rotating shaft which is coaxially arranged correspondingly to the first wheel and the third wheel; the first driving device is also provided with a driver which reversibly leads the planetary wheel bracket to swing.

Description

The device that is used for the crooked a kind of continuous wire rod in loop line shape ground

Technical field

The present invention relates to a kind of being used for bends to wire rod comb with a kind of continuous wire rod loop line shape (Schleifenf  rmig), wire rod comb has by to send out forked basically bending and the section of the loop line shape that tooth that be arranged side by side constitutes and connect these loop line shape sections, that extend along the longitudinal direction of wire rod comb and each other before and after the wire rod section arranged, this device has two distance to each other and pin bearing parts that move synchronously with one another, these pin bearing parts have one respectively and come the pin that front and back are arranged on the direction of motion, wherein, these pin rows have substantially the same calibration, yet the pin of these two pin rows staggers on the direction of motion of pin bearing part each other, this device also has a loop line drawbench that is supported rotationally, be used for loop line shape this wire rod is alternately laid around a pin of a pin row and a pin of another pin row in succession, this device also has a drive unit that is used for driving rotationally the loop line drawbench.

Background technology

The wire rod comb of the above-mentioned type is in particular for tying up paper piece (Papierblock), its mode is, these wire rods comb in its intact back of device manufacturing by an aforementioned type some subsequently or be connected in thereafter the device the at first prebuckling of C shape and in wire rod comb section, be divided, insert then and be enclosed in the hole in the edge area that is opened in the paper piece.

Constitute immediate prior art, the present invention based on US4, the device that a kind of this paper starts described type is disclosed among 047,544 A, this device has two rotating pin wheels and a double-arm loop line drawbench that is supported rotationally.This double-arm loop line drawbench makes the wire rod preform by means of two projections.Then, the wire rod loop line that constitutes is like this transferred on the pin of one of two pin wheels by one of two projections of this loop line drawbench, and this carries out circularly by means of discharger two respective synchronization work, motion on the contrary.

By US3,670,781 A disclose a kind of two right wire bending machines of pin wheel that one after the other are provided with that have, and wherein, wire rod at first by the zigzag prebuckling, then carries out rectangular bend the second pin wheel centering to this wire rod the first pin wheel centering.

At US3,691,808 A, US3 disclose a kind of wire bending machine with two rotating, pin wheels of being arranged side by side respectively among 805,579 A and DE 22 34 293 C3.Also be provided with a loop line applicator with two arms of controlling by curve, this loop line applicator is with the be laid in front of pin of pin wheel of this wire rod.Wire rod from the loop line applicator to described pin on circulation transfer by means of one on the contrary the motion discharger and one equally on the contrary the motion piston carry out.

A kind of wire bending machine with two rotating, pin wheels of be arrangeding in parallel has been described in DE 29 08 223 C2.In addition, the wire bending machine of the disclosure has a loop line applicator, and the latter makes the wire rod preform and this wire rod is loosely laid round the pin of pin wheel.During the pin wheel rotation, by a bending forming wheel that is arranged between these pin wheels this wire rod is strained, obtain required wire rod comb shape shape thus.Hold down gag that is arranged on the circumference avoided the wire rod comb to be bent being shaped wheel from the pin of pin wheel to pressing down.After bending forming process, make the wire rod comb lax, guaranteed thus the good wire rod that is shaped can have been taken off from the pin friction littlely, so that this wire rod comb is transported to other processing unit (plant)s.

Disclose a kind of device that is used for the continuous wire rod of loop line shape ground bending by DE 32 40 341 C2, this device has rotating bearing part, and these bearing parts carry four bending mandrels respectively.Each bearing part has all been disposed the lever that can swing, and the latter is pressed in wire rod on the bending mandrel that correspondingly works.During these bearing part rotations, inoperative bending mandrel withdrawal.The section of making like this of wire rod comb is then derived by a guider linearity, level.

In order to drive loop line drawbench or loop line applicator, need a drive unit.But drive unit in the prior art has expensive structure and requires complicated control and operation.When this causes making and run duration expensive.In addition, disclosed drive unit lacks necessary operational reliability.

Summary of the invention

Therefore, task of the present invention is, proposes a kind of drive unit for the loop line drawbench, and this drive unit accurately reaches and works reliably, can be controlled and need not structural height simply and just expend and can realize.

This task is by a kind of device solves, this device be used for a continuous wire rod loop line shape bend to wire rod comb, wire rod comb has by to send out forked basically bending and the section of the loop line shape that tooth that be arranged side by side constitutes and connect these loop line shape sections, that extend along the longitudinal direction of wire rod comb and each other before and after the wire rod section arranged, this device has two spaced apart from each other and pin bearing parts that move synchronously with one another, these pin bearing parts have one respectively and come the pin that front and back are one after the other arranged on the direction of motion, wherein, these pin rows have substantially the same calibration, yet the pin of these two pin rows staggers on the direction of motion of pin bearing part each other, this device also has a loop line drawbench that is supported rotationally, be used for loop line shape this wire rod is alternately laid around a pin of a pin row and a pin of another pin row in succession, this device also has a drive unit that is used for driving rotationally the loop line drawbench, it is characterized in that: this first drive unit has a planetary driving device, planetary driving device has a substantial constant driven first round of ground, at least one with this first round be in cooperate and be rotatably supported in taking turns and be supported rotationally with respect to coaxial heart of the first round on the planetary carrier as second of planetary gear, with described at least one second take turns and be in the third round that cooperates and drive the loop line drawbench rotationally, wherein, planetary carrier can around one with respect to first and the rotating shaft of the coaxial heart setting of third round be supported rotationally, also have a driver that is used for reversibly swinging this planetary carrier.

According to the present invention, the loop line drawbench is driven by a planetary driving device.For this reason, the driver of the first round by a part motor or other, that belong to first drive unit carries out rotatablely moving of a substantial constant, and power output is undertaken by third round, and this third round connects with the rotating shaft of the loop line drawbench that is supported rotationally.Selectively directly carry out connecting between the third round of planetary driving device and the loop line drawbench or speed reduction gearing or multiplying gear by a respective settings size carry out.The first round constitutes hollow wheel, and third round constitutes the sun gear of planetary driving device; Can consider also that alternatively third round is made as hollow wheel, and the first round is set as sun gear.Therefore, drive, carry out power output by sun gear or hollow wheel (third round) by hollow wheel or sun gear (first round).At this, the transmission of driving power between hollow wheel and sun gear undertaken by described at least one planetary gear (second takes turns), and this planetary gear is bearing on the planetary carrier.

Traditional mode of the operation of this planetary driving device is: planetary carrier is fixed, and the present invention deviates from mutually with this known theory, and its mode is that during hollow wheel and sun gear rotation, planetary carrier is reversibly swung.

By the swing of planetary carrier, with respect to relative motion of first round generation.This relative motion causes: when planetary carrier during along the swing of the direction of rotation of the first round, the rotating speed of third round is lowered; When planetary carrier is swung against the direction of rotation of the first round, the rotating speed of third round will raise.This measure according to the present invention allows to realize the best adjusting of the desirable motion process of loop line drawbench with respect to the motion of pin bearing part with specially suitable method on the structure.Can realize the friction free transition on the associated pin of one of loop line drawbench to two pin bearing part thus in the mode of the best.In addition, planetary driving device of the present invention can both be adjusted on the best operating point for every kind of specification basically.

Also can consider not have the direct driving of transmission device in theory, thus, this loop line drawbench can directly be driven.But the result proves, because necessary speed changes the very high number of times that reaches the load transfer that causes thus, structure for the drive motors that is suitable for this has proposed high configuration aspects requirement, this is associated with high cost, at least in order sufficiently to satisfy the requirement of reliability and long life.For this reason, in the scheme of this direct driving, the control corresponding device need be set additionally.Therefore, though the present invention is by being connected the scheme that a planetary driving device provides a machinery in the middle of between a constant driver and the loop line drawbench, but the result proves that planetary driving device of the present invention causes obviously more firm structure and causes obviously littler manufacturing cost.Planetary driving device of the present invention constitutes pressure control device automatically for the motion process of loop line drawbench.This has its advantage, that is, the drive motors that can use simple, a constant job is as driver, and this drive motors is characterised in that simple structure and thus little manufacturing cost, and does not need that add, expensive control device.In addition, in planetary driving device of the present invention, the major part of the moment of inertia is arranged in constant relative motion and thus serves as a kind of energy storage device that is used for the subsidiary motion of loop line drawbench, and this has supported in the control effect aspect its motion process with suitable and favourable thus mode.

However, the present invention with suitable on the structure and simultaneously the favourable mode of cost provide required motion process for the subsidiary motion of loop line drawbench, realized best adaptive simultaneously for selected specification.

Preferred this driver makes planetary carrier reversibly swing on a limited angular range, wherein, the angular range of planetary carrier and/or angular speed are adjustable, so that the rotation of loop line drawbench is adjusted on the speed of pin of pin bearing part and found best operating point thus.If the loop line drawbench is provided with the bending mandrel that at least one relative its rotating shaft has radial spacing ground to be provided with, bending mandrel acts on from behind with being used to carry out loop line shape on the wire rod and lays, then the angular range of planetary carrier and/or angular speed should be conditioned, and make the speed of described at least one bending mandrel of loop line drawbench be adjusted on the speed of pin of pin bearing part.For the special nothing of the wire rod section after the bending is frictionally transferred on the associated pin of one of two pin bearing parts from the loop line drawbench, the angular range of this planetary carrier and/or angular speed should be conditioned, the feasible angular speed that drives the third round of loop line drawbench is reduced to a minimum of a value at least one angle position of determining, preferably be reduced to 0.

Therefore, the angular speed of loop line drawbench reduce or its stopped status realizes by the corresponding adjusting to this angular range and/or angular speed on the angle position of determining.Thus, planetary driving device of the present invention can both be adjusted on the best operating point for every kind of specification.Yet, if changing, specification require the calibration of these pin rows to be changed, must additionally change these pin bearing parts.In order to change the wire rod loop line, the spacing of two pin bearing parts must correspondingly fit each other.

In addition, even the adjusting of the reversible oscillating motion of planetary carrier also allows to carry out adaptive at continuous run duration.By the controllability targetedly of angular speed and/or angular range, possible is, in transport zone, the speed of the crooked projection of loop line drawbench is adjusted to directly consistent with the speed of the pin of pin bearing part.

What conform with purpose is, the first round is a hollow wheel, third round be constructed to this hollow wheel inside sun gear and described at least one second take turns first and third round between.But can consider also that in principle the first round is constructed to sun gear, and third round is constructed to hollow wheel.As common planetary driving device, a plurality of planetary gears (second takes turns) are set on planetary carrier preferably.

Also advantageously, the wheel of planetary driving device should be made of gear.Be constructed to hollow wheel and third round when being constructed to sun gear when the first round, this first round has interior toothing on the circumference within it, and be set to planetary gear described at least one second take turns and described third round on its circumference, be provided with respectively outside toothing.But, needn't use gear in principle, but corresponding friction pulley can be set.

Another preferred form of implementation is characterised in that: described first drive unit has a pinion that rotatably is supported and a driver, this pinion and the first round are in engagement and its rotating shaft is arranged essentially parallel to the rotating shaft of the first round, and this driver is rotated pinion.Improve in the configuration at one, this pinion can be in engagement with the excircle of the first round; For this reason, toothing and this pinion had a gear ring outside the first round can be provided with on its excircle, and the outer toothing of this gear ring and the first round is in engagement.

The driver of pinion preferably is made of the driver of first drive unit, so that this driver not only makes planetary carrier rotate, and also makes this pinion rotation simultaneously.

Another preferred form of implementation is characterised in that: this first drive unit has a reciprocating movement rod, it radial distance is arranged is hinged on this planetary carrier with the rotating shaft of one end thereof with respect to planetary carrier, and this servo-driver makes this reciprocating movement rod along its longitudinal direction reciprocal movement.This reciprocating movement rod constitutes simple proposal on the structure, so that make planetary carrier carry out reversible swing according to the present invention.

In an improvement project of this form of implementation, this first drive unit has an eccentric, eccentric rotatably is supported around a rotating shaft, and the other end of reciprocating movement rod radially is hinged on this eccentric with interval with respect to this rotating shaft, and this driver makes the constant rotation of this eccentric around its rotating shaft.What conform with purpose is that the rotating shaft ground that the rotating shaft of this eccentric is arranged essentially parallel to first and third round of planetary driving device extends.Under the situation that this eccentric is provided with, can be converted to a translational motion with the motion that simple especially mode on the structure is rotated a substantial constant, this translational motion is the reciprocating motion of reciprocating movement rod, and this reciprocating movement rod moves according to the mode of a connecting rod thus.

As long as this driver not only makes the planetary carrier swing, and also make the pinion rotation simultaneously according to foregoing embodiment, for jointly driving pinion and eccentric, this servo drive should preferably mechanically connect by a transmission device and/or the seamless band around operation with this pinion and eccentric so.

For the angular range of the oscillating motion of regulating planetary carrier and regulate the stroke of this reciprocating movement rod thus, this reciprocating movement rod should corresponding change from the radial spacing of the rotating shaft of this eccentric, and/or for the angular speed of the oscillating motion of regulating planetary carrier and the reciprocating stroke speed of regulating this reciprocating movement rod thus, the rotating speed of this eccentric should corresponding change.

According to another preferred form of implementation, can be provided with two that be arranged side by side, be spaced apart from each other and synchronously with one another the motion pin wheel as the pin bearing part, these pin wheels have identical diameter basically and be provided with the pin that a row extends radially outwardly on circumference, wherein, these pin rows have identical calibration basically, but the pin of these two pin rows staggers on the direction of rotation of pin wheel each other, and the rotating shaft of two pin wheels is each other with an angle setting simultaneously.In addition, in this form of implementation, first drive unit is set second drive unit is set in order to drive two pin wheels in order to drive the loop line drawbench.Constitute in the form of implementation of independent design of the present invention at this, arranged according to the present invention be used for that the rotating shaft of two pin wheels is not had the mechanism that connects with relatively rotating, be used for on the structure simply mode guarantee the synchronous operation of two pin wheels reliably.

Rotating shaft by two pin wheels is each other with an angle, and---value of this angle generally only has the several years, is not more than 3 ° usually---is provided with, during the pin wheel rotation continuously, carry out the increase of two spacings between the pin row and reduce in the mode that replaces.At this, when spacing at first became big, the wire rod on the pin row of these pin wheels that are laid in was tensioned, and obtained predetermined wire rod comb shape shape thus.The feasible good wire rod that is shaped of the spacing that diminishes subsequently can take off from the pin row friction littlely, so that this wire rod comb conveying is used for further processing.

Preferred second drive unit should only drive the rotating shaft of one of two pin wheels, and the rotating shaft of two pin wheels should constitute a common bending axle, and this coupling mechanism is made of the jointing of the bending of this bending axle thus.

Can consider that also use a cross-garnet butt as coupling mechanism, this cross-garnet butt is connected to each other the rotating shaft of two pin wheels, wherein, this second drive unit only drives the rotating shaft of one of these pin wheels.Can consider also that alternatively this coupling mechanism is made of elasticity of flexure, the antitorque middleware.

An alternative improvement project of this form of implementation is characterised in that: second drive unit has two drive motors, and one of them drive motors drives the rotating shaft of a pin wheel, and another drive motors drives the rotating shaft of another pin wheel; And be provided with a control device, two drive motors of this control device control make them work according to the mode of a common electric drive axle together, and thus, coupling mechanism is made of this control device.

Second drive unit that is used to drive two pin wheels can connect with first drive unit that is used to drive the loop line drawbench by a common control device, wherein, and the beat axle (Taktwelle) that this control device is preferably electronic.

In another preferred improvement project of this form of implementation, the angle setting to each other of the rotating shaft of two pin wheels is adjustable, and this point advantageously causes the simple adjustment of specification part with respect to prior art and changes fast.The adjusting of these rotating shafts different angles to each other by known governor motion, for example manually or the leading screw of motorized motions, Linear actuator etc. carry out.Only have a drive motors for second drive unit situation of---this drive motors only drive one of two pin wheels axle---, preferably the shaft structure away from the pin wheel of this drive motors should be become adjustable, this causes special simple proposal on the structure.

Usually, for with the wire rod section after the bending in other words the wire rod loop line transfer on the pin of one of two pin wheels from the loop line drawbench, be provided with at least one discharger, according to another preferred form of implementation of the present invention, this discharger is constructed to be supported rotationally, basically Yuan Xing dish, this rim its circumference and is provided with a control curve, this control curve has at least one outstanding section, on this outstanding section and the loop line drawbench, edge section after the bending forms by under the situation of touching and continuing to rotate at this dish this edge section being pressed onto on the pin of a pin wheel from this loop line drawbench.This form of implementation provides a simple but fruitful especially structure, is used to form discharger, works efficiently in order to make this discharger, and the angular speed and/or the angle position with respect to the loop line drawbench of this discharger only need correspondingly to be coordinated.For this reason, the rotation of this discharger drives should be synchronous with the servo-driver that is used for reversibly swinging planetary carrier, make that when the angular speed of the third round of planetary driving device reaches its minimum of a value the outstanding section of control curve and the formation of the wire rod section after the bending on the loop line drawbench are by touching and this wire rod section being pressed onto on the pin of selling bearing part from the loop line drawbench.

Preferred this discharger is constructed to the bowl-type dish, and it is at least one outstanding section that its outstanding in the axial direction edge constitutes described control curve.

Another simple especially structure is characterised in that: this discharger is configured to wobble-plate (Taumelscheibe), and its circumferential edges has the function of control curve and constitutes the control curve thus owing to oscillating motion.Yet, if each rotation of discharger need be more than discharging effect once, must drive a discharger that is made of the crank-type dish with the rotating speed higher than loop line drawbench, this point for example realizes by means of a corresponding gear or an independent driver.

The rotating shaft ground that the rotating shaft of this discharger should be arranged essentially parallel to the loop line drawbench is provided with.

Driven in synchronism with respect to the loop line drawbench realizes that especially in the following manner promptly, first drive unit not only drives this loop line drawbench, and drives this discharger, and its mode is that this first drive unit makes the rotation continuously basically of this discharger.

Sell bearing part and for each pin row an independent discharger can be set thus for each.But also can consider, only be provided with one and be used for the discharger of a pin row and the loop line drawbench additionally is provided with towards these pin row reciprocal movement ground, therefore bear the wire rod section after the bending is transferred to task on the pin of another pin row by the loop line drawbench.At last, also can consider in principle, abandon fully discharger and additionally the loop line drawbench be set to can be towards the direction reciprocal movement of pin bearing part, make it bear the wire rod section after the bending transferred to task on the pin of two pin rows.

Description of drawings

Describe the preferred embodiments of the present invention below with reference to the accompanying drawings in detail.

Shown in the figure:

Fig. 1 a, 1b, 1c: with stereogram signal property and partly illustrate one that constitute by two pin wheels, loop line drawbench and discharger, during the crooked continuous wire rod in loop line shape ground, be in three construction packages in the different running statuses,

Fig. 2: be illustrated schematically in the radially setting that this loop line drawbench carries out the crooked projection of the setting of the part of the pin row of these pin wheels during the circus movement and this loop line drawbench with view of apparatus,

Fig. 3: schematically show setting and a servo-driver of tilting slightly each other of two pin wheels with the radial view of amplifying, simultaneously, left out loop line drawbench and discharger,

Fig. 4: schematically with three-dimensional basically diagram illustrate have according to a preferred embodiment of the present invention, for the assembly of wire bending machine important components,

Fig. 5: being used in assembly that is included in Fig. 4 drives the signal of planetary driving device of loop line drawbench and the view that part is interrupted,

Fig. 6: from the assembly of view Fig. 4 different, left out servomotor basically with respect to Fig. 4,

Fig. 7: with the partial view that amplifies schematically show the discharger with a control curve configuration and with the acting in conjunction of a tooth row pin wheel that partly illustrates and the loop line drawbench.

The specific embodiment

In order to understand the bending wire process better, among Fig. 1 and Fig. 2 with stereogram signal property ground and the important components for the crooked a kind of continuous wire rod in loop line shape ground of a not completely shown in the accompanying drawings wire bending machine partly is shown.For this reason, be provided with two pin wheels that are arranged side by side and are spaced apart from each other 2,4, they have identical diameter and be provided with the

6 or 8 that a row extends radially outwardly on their circumference, wherein, the pin row of these two

pin wheels

2,4 has identical calibration, but these

pins

6,8 of these two pin rows are looked on the direction of rotation of

pin wheel

2,4 and staggered each other.In addition, as can be seen from Figure 1, pin 6 width in a circumferential direction of first pin wheel 2 is less than the width of the pin 8 of second pin wheel 4, and therefore the spacing between the pin 6 of first pin wheel 2 is greater than the spacing between the pin 8 of second pin wheel 4.In an illustrated embodiment, the different shaping of these

pins

6,8 is determined by the desirable shape of wire rod to be bent 10.Yet,, also can consider other moulding of these

pins

8,6 according to the desirable shape of wire rod to be bent.Therefore for example can use such pin wheel, wherein, the spacing between the width of pin and/or the pin is identical in a circumferential direction.

As can be from the ground that Fig. 1 schematically finds out, the task of the

6,8 of these

pin wheels

2,4 is, make a continuous wire rod 10 constitute the wire rod comb, wire rod comb have by to send out forked basically bending and the section of the loop line shape that tooth that be arranged side by side constitutes and connect these loop line shape sections, that extend along the longitudinal direction of wire rod comb and each other before and after the wire rod section arranged, this wire rod section extends according to the circumferencial direction of

pin wheel

2,4 or the direction of rotation longitudinal direction along the wire rod comb that is shaped in this wise.

For wire rod 10 being moved on the

6,8, be provided with a loop line drawbench 12 that rotatably is supported, this loop line drawbench has a rotating shaft 14, and this rotating shaft connects with a driver that also will describe in detail in the back, this loop line drawbench 12 is driven and rotates.In an illustrated embodiment, this loop line drawbench 12 is provided with two arms that are provided with 16,18 on the end opposite of diameter, wherein, is provided with one first crooked projection 20 on the first arm 16, and is provided with one second crooked projection 22 on second arm 18.This loop line drawbench 12 be positioned in two

pin wheels

2,4 circumference near, wherein bending

mandrel

20,22 is to the circumference orientation of pin wheel 2,4.Under this relation, can find out that from Fig. 1 and 2 axle 14 of loop line drawbench 12 is roughly radially directed with respect to

pin wheel

2,4.

In addition, this loop line drawbench 12 is provided with the head 19 at a center, and this head is to pin 8 orientations of second pin wheel 4.

In an illustrated embodiment, this loop line drawbench not only can be around axle 14 rotations, and can reversibly be supported to motion in the axial direction by a not shown driver, this head 19 can be brought to respectively on two adjacent pins 8 of second pin wheel 4 thus, so that seal the space that is used to receive a section of wire rod 10 at these two pins between 8 basically.

Near the circumference of first pin wheel 2 and loop line drawbench 12 near be provided with a discharger 24, in an illustrated embodiment, this discharger is constructed to rotatably be supported and driven dish, and axle 14 ground that its rotating shaft 25 is roughly parallel to loop line drawbench 12 extend.The shape of this discharger 24 will be introduced in the explanation of back in detail.

For by the wire rod 10 shaping wire rods of continuous importing comb, 4 motions of loop line drawbench 12 towards second pin wheels, thus, the head 19 of loop line drawbench 12 is pressed into wire rod 10 in the space between the pin 8 of two vicinities.Simultaneously, first curved block 20 acts on the wire rod 10 from behind a position that is arranged in its top.This operating mode has been shown among Fig. 1 a.

When loop line drawbench 12 rotated continuously, the first crooked projection 20 drove wire rods 10, carries out BENDING PROCESS thus.This operating mode has been shown among Fig. 1 b.

Can find out that from Fig. 1 c BENDING PROCESS almost finishes.Before this, with respect to the state among Fig. 1 a, the first crooked projection 20 has almost carried out a semicircular motion.If this first crooked projection 20 reached one with respect to the location deflection of Fig. 1 a 180 ° position, then the wire rod section by first crooked projection 20 bendings is transferred on the corresponding pin 6 of first pin wheel 2.At this moment discharger 24 is come into operation, and the wire rod section of this discharger after with bending is pressed onto on the corresponding pin 6 from the first crooked projection 20.In addition, this transfer can found out aspect the second crooked projection in Fig. 1 a.Simultaneously, the second crooked projection 22 acts on the wire rod 10 of continuous importing on the position identical with the position of crooked projection 20 among Fig. 1 a from behind.

For the metal loop that the section after the bending of wire rod 10 will be formed is in other words like this transferred on the ready for this reason pin 6 of first pin wheel 2 from

crooked projection

20,22; loop line drawbench 12 must be braked and obviously reduce its rotary speed thus; exactly; be preferably between loop line drawbench 12 is accelerated again, make its temporary transient shutdown.Because in an illustrated embodiment, loop line drawbench 12 is with two crooked projections that are provided with on the end opposite of

diameter

20,22 work, thus during 12 rotations of loop line drawbench, this begins-stops-and operating mode carries out twice.

As can be seen from Figure 2, these

crooked projections

20,22 are because the rotation of loop line drawbench 12 and moving on the track of a circle, its radius roughly equal spacing between two

pin wheels

2,4.

For constituting wire rod comb continuously importantly, two

pin wheel

2,4 rotations synchronized with each other and therefore synchronously being driven.

The rotating

shaft

26,28 of these

pin wheels

2,4 forms a little angle [alpha] each other, though from Fig. 1 and Fig. 2, can not find out this point, but in Fig. 3, schematically shown this angle, compared, in Fig. 3, for the sake of clarity left out loop line drawbench 12 and discharger 24 with Fig. 1 and 2.Consequently, when continuous rotation, the spacings between these

pins

6,8 at first become greatly, thus, are arranged on that wire rod comb on the

6,8 is extended and this wire rod comb finally obtains the shape that it is scheduled to.Subsequently, the spacing between these

pins

6,8 diminishes again, the wire rod comb friction that is shaped is in this wise taken off littlely, so that this wire rod comb is transported in other the processing from pin 6,8.In Fig. 3 schematically to be shown in dotted line position with respect to the pin wheel 4 of pin wheel 2 slight inclination angle [alpha].

First servomotor 30 that loop line drawbench 12 schematically shows in Fig. 4 by one, continuous firing drives.In order to change by the continuous rotation that first servomotor 30 produces, make loop line drawbench 12 carry out the rotation that speed changes in foregoing mode, between the rotating shaft 14 of first servomotor 30 and loop line drawbench 12, be connected a planetary driving device 32, this planetary driving device not only can be in sight in Fig. 4, and also can be in sight in Fig. 5 and 6.

Yet, as only can be as can be seen from Figure 4, first servomotor 30 drives a belt wheel that schematically shows 33, one also is that schematically show seamless is with 34 to move on this belt wheel, this seamless band is delivered to this rotation on the pinion that rotatably is supported 36, its mode be this pinion to be provided with one be the belt wheel 38 that schematically shows equally in Fig. 4, described seamless 34 operations on this belt wheel 38 of being with.In an illustrated embodiment, the rotating shaft 37 of described pinion 36 is roughly parallel to the axle 14 of loop line drawbench 12.

Described pinion 36 drives planetary driving device 32.For this reason, this pinion 36 is provided with an external toothing 40, external toothing 42 engagements of an external toothing and a hollow wheel 44, and this hollow wheel is the part of planetary driving device 32.This hollow wheel 44 also has ring gear 46, ring gear and planetary gear 48 engagements that correspondingly are configured to gear.The planetary gear 48 that is similarly the part of this planetary driving device can be rotated to support on the planetary carrier 50 and with one be configured to external toothing engagement gear and that be supported in sun gear 52 rotationally equally, the rotating shaft 53 of this sun gear and the rotating shaft of hollow wheel 44 overlap and jointly constitute the rotating shaft at the center of planetary driving device 32.Be that the sun gear 52 of the part of this planetary driving device 32 is configured for being delivered to rotatablely moving the output device on the loop line drawbench 12 and reaches coaxially not have with the axle 14 of loop line drawbench 12 in an illustrated embodiment and directly is connected with relatively rotating equally.Replace directly connecting, also can consider the sun gear 52 of planetary driving device 32 and loop line drawbench 12 spools 14 between the layout of a speedup or speed reduction gearing alternatively is set.

So in an illustrated embodiment, driving is undertaken by hollow wheel 42, and output is undertaken by sun gear 52.Also can consider in principle, driving is undertaken by sun gear, and output is undertaken by hollow wheel.At this, under any circumstance, the transmission of the driving power between hollow wheel 44 and the sun gear 52 is undertaken by the planetary gear 48 that these can be rotated to support on the planetary carrier 50.

The traditional approach of this operation of a planetary driving device is: planetary carrier is fixed, and the present invention is different with this known theory, its mode is, planetary carrier 50 is not fixed, but can swingingly be supported around a rotating shaft 53, this rotating shaft constitutes the rotating shaft at the center of planetary driving device 32, and hollow wheel 44 and sun gear 52 also can be supported rotatably around this rotating shaft.At this, planetary carrier 50 can be around the reversibly swing in a limited angular range of this rotating shaft 53.For this reason, reciprocating movement rod 56 usefulness one end thereof are hinged on this planetary carrier 50 by an end-journal 54 that has radial spacing ground to be provided with this rotating shaft 53.This its other end of reciprocating movement rod 56 usefulness is hinged on the turning cylinder 60 prejudicially by an end-journal 58, and thus, the rotating shaft 61 of this end-journal 58 and turning cylinder 60 is with certain radial spacing setting.Because end-journal 58 supported prejudicially, so turning cylinder 60 has the effect of an eccentric with end-journal 58, therefore, the member that is made of jointly end-journal 58 and turning cylinder 60 also can be called as eccentric.

A belt wheel that only schematically shows in Fig. 4 62 reaches coaxially not have and connects with described turning cylinder 60 with relatively rotating, is with 34 also to be guided on this belt wheel by first servomotor, 30 the seamless of driving.Therefore, in an illustrated embodiment, first servomotor 30 not only is used for driving pinion 36 and is used to drive planetary driving device 32 thus, and also is used to drive simultaneously turning cylinder 60.Because the arranged off-centre of end-journal 58, reciprocating movement rod 56 reversibly moves back and forth according to the double-head arrow shown in Fig. 5,6.Thus, reciprocating movement rod 56 moves according to the mode of connecting rod.Because reciprocating movement rod 56 is hinged on the planetary carrier 50 by end-journal 54, this reversible reciprocating motion causes the reversible deflection of planetary carrier 50 on a limited angular range again.

By this swing of planetary carrier 50, produce a relative motion with respect to hollow wheel 44.When planetary carrier 50 during along the direction of rotation deflection of hollow wheel 44, this relative motion causes the reduction of the rotating speed of sun gear 52, and when planetary carrier 50 during against the direction of rotation swing of hollow wheel 44, this relative motion causes the rising of the rotating speed of sun gear 52.Therefore, sun gear 52 carries out a rotation that speed is variable, and this rotation directly is delivered on the axle 14 of loop line drawbench 12, so that this axle 14 also carries out rotation identical, that speed is variable.

At this, in this embodiment, the rotating speed of the eccentric support device of end-journal 58 and the turning cylinder 60 of bearing end axle journal 58 makes after one 180 ° rotation, loop line drawbench 12 reaches its minimum speed of gyration or angular speed in short-term, and under the application situation of determining, the value of this speed of gyration or angular speed also can be 0, exactly, as previously described, at one, a wire rod section after the bending is transferred to the position, angle on the corresponding pin 6 from its crooked projection 20,22.And former, loop line drawbench 12 must correspondingly be braked, and is accelerated.

By the end-journal 58 changeable location of selectively spacing radially, eccentric stroke, be that the length of the shift reciprocately of reciprocating movement rod 56 can be conditioned.By this controllability of this off-centre stroke, possible is, in the shutdown zone of loop line drawbench 12 speed of

crooked projection

20,22 accurately is adjusted to according to the speed of

6,8 on the circumference of

pin wheel

2,4 of constant rotation.Therefore, this planetary driving device 32 all can be adjusted on the best operating point for all specifications basically.

In case of necessity, change the also

necessary pin wheel

2,4 of changing for specification, especially when needing other calibration of pin 6,8.Instead or additionally, the spacing between two

pin wheels

2,4 also should be variable, so that the different width of adjustable nodel line material comb.For this reason, for example used differently, but these have not been shown in the accompanying drawings apart from sleeve apart from sleeve.

Described tout court according to Fig. 3 as the front, the rotating

shaft

26,28 of these

pin wheels

2,4 is directed with the low-angle α ground that inclines towards each other.This angle setting should be adjustable, and this point can advantageously be supported the simple adjustment of specification part and change fast.The adjusting of rotating shaft 26, the 28 required angle to each other of two

pin wheels

2,4 by known governor motion, for example manually or the leading screw of motorized motions, Linear actuator etc. carry out.

The rotating

shaft

26,28 of two

pin wheels

2,4 can constitute a common bending axle.Can consider also that alternatively use a cross-garnet butt or a middleware elasticity of flexure, antitorque to connect two

rotating shafts

26,28, its element of schematically representing with chain-dotted line illustrates in Fig. 3.Under all these situations, in any case also possible be, only use a driver, as schematically illustrating according to second servomotor 64 that illustrates there in Fig. 3 and 4.As also schematically illustrating, in an illustrated embodiment, only be that the rotating shaft 28 away from second servomotor, 64 pin wheels 4 is configured to adjustable from Fig. 3.

Alternatively, can consider also, use independent drive motors and a control device is set that two drive motors of this control device control make them move according to the mode of a common electric drive axle together for each

pin wheel

2 and 4.

Also can consider in the embodiment shown in fig. 4, use a control device, this control device makes second servomotor 64 connect with first servomotor 30, in Fig. 4, only be provided with i.e. second servomotor 64 of a unique common driver for two pin wheels 2,4, in addition, also be provided with not shown angular measurement sensor, be used to detect the location of the rotating shaft of two servomotors 30,64.In addition, to each other angle orientation of axle must determine by offset, because the correct angle position of the output shaft of servomotor 30,64 is necessary for the operation of no problem.The bending mandrel 20,22 of loop line drawbench 12 is connected the back for the first time at wire bending machine and is accurately located with respect to the pin 6,8 of pin wheel 2,4.Because the state of crooked projection 20,22 on the one hand the conversion by planetary driving device 32 and on the other hand by turning cylinder 60 and thus the variable in principle position of reciprocating movement rod 56 derive by the angle position of the output shaft of first servomotor 30 indirectly, so, also because this is former thereby the angular measurement sensor that is mentioned to previously should be set.Best this angular measurement sensor has the absolute value transducer that at least one is used for sun gear 52.For device described herein, the advantage of absolute value transducer is that after voltage failure, the location of driver still is saved and is known thus especially.Measure by the front summary description has guaranteed that loop line drawbench 12 occupies correct position with one of its crooked projection 20,22 all the time, is used to not have frictionally with the ready pin 6 of the sector transfer after the bending of wire rod 10 to first pin wheel 2.But, alternatively or additionally also can consider, try to achieve and regulate necessary, relative position, angle by means of one with reference to operation.

As has been described previously, discharger 24 is constructed to a dish that can be supported rotationally around rotating shaft 25.As can find out ground in Fig. 7, discharger 24 has a control curve 66, and this curve is provided with an outstanding section 66a.Control curve 66 should be outstanding section 66a the crooked projection by loop line drawbench 12 (according to the diagram of Fig. 7, this bending projection is crooked projection 20) at wire rod 10 is that keep, the formation metal loop by touching during the rotation continuously at the dish type discharger, on the section after the bending and the section after the bending of this wire rod 10 is pressed on the ready pin 6 of first pin wheel 2.Thus, simultaneously the corresponding crooked projection of the section after the bending of wire rod 10 from loop line drawbench 12 taken off.

Because during 360 ° rotation, carry out twice transfer in an illustrated embodiment, promptly in one 180 ° angle intervals, carry out, so the control curve 66 of discharger 24 must have two outstanding section 66a on one 180 ° angle intervals.

Preferably discharger 24 is constructed to the bowl-type dish, and it is outstanding in the axial direction edge-oriented on pin wheel 2 and constitute control curve 66.

In addition, in an illustrated embodiment, loop line drawbench 12 and discharger 24 rotate synchronously with one another.First servomotor 30 also can be used to drive discharger 24 thus, but not shown in the accompanying drawings this point.

Claims

One kind be used for continuous wire rod (10) loop line shape bend to into wire rod comb, wire rod comb has by to send out forked basically bending and the section of the loop line shape that tooth that be arranged side by side constitutes and connect these loop line shape sections, that extend along the longitudinal direction of wire rod comb and each other before and after the wire rod section arranged, this device has two each intervals and pin bearing part (2 that move synchronously with one another, 4), these pin bearing parts have one respectively and come the pin (6 that front and back are arranged on the direction of motion, 8), wherein, these pin rows have substantially the same calibration, yet the pin (6 of these two pin rows, 8) at pin bearing part (2,4) stagger each other on the direction of motion, this device also has the loop line drawbench (12) that is supported rotationally, be used for loop line shape this wire rod (10) is alternately laid around the pin (6) of a pin row and the pin (8) of another pin row in succession, this device also has first drive unit that is used for driving rotationally loop line drawbench (12), it is characterized in that: this first drive unit has planetary driving device (32), it has substantial constant ground driven first round (44), at least one with this first round (44) be in cooperate and be rotatably supported on the planetary carrier (50) as second of planetary gear take turns (48) and with respect to first round (44) coaxially, be supported rotationally, with described at least one second take turns (48) and be in the third round (52) that cooperates and drive loop line drawbench (12) rotationally, wherein, planetary carrier (50) around with respect to first and the rotating shaft (53) that is provided with of the coaxial heart of third round (44,52) be supported rotationally; This first drive unit also has the driver (30) that is used for reversibly swinging this planetary carrier (50).
2. according to the device of claim 1, it is characterized in that: this driver (30) makes planetary carrier (50) reversibly swing on limited angular range, wherein, the angular range and/or the angular speed of this planetary carrier (50) are adjustable, so that rotation and pin bearing part (2 with loop line drawbench (12), the speed coordination of pin 4) (6,8).
3. according to the device of claim 2, wherein, this loop line drawbench (12) is provided with the bending mandrel (20 that at least one and its rotating shaft (14) spaced radial ground are provided with, 22), bending mandrel acts on the wire rod (10) from behind, being used to carry out loop line shape shakedown puts, it is characterized in that: angular range and/or the angular speed that can regulate this planetary carrier (50), make described at least one bending mandrel (20 of loop line drawbench (12), 22) speed and pin wheel (2,4) coordinate on pin (6, the 8) speed.
4. according to the device of claim 2 or 3, it is characterized in that: angular range and/or the angular speed that can regulate this planetary carrier (50), make the angular speed of third round (52) at least one angle position of determining, be lowered on the minimum of a value, preferably be reduced to 0.
5. the device that one of requires at least according to aforesaid right, it is characterized in that: the first round (44) is hollow wheel, third round (52) is arranged on the inside of this hollow wheel as sun gear, and at least one second take turns (48) be positioned at this first with third round (44,52) between.
6. according to the device of one of aforesaid right requirement, it is characterized in that: these of planetary driving device (32) are taken turns (44,48,52) and are made of gear.
7. according to the device of claim 5 and 6, it is characterized in that: the first round (44) has interior toothing (46) on the circumference within it, and described at least one second take turns (48) and this third round (52) on circumference, be provided with respectively outside toothing.
8. the device that one of requires according to aforesaid right, it is characterized in that: described first drive unit has a steamboat (37) and a driver (30) that rotatably is supported, this steamboat cooperated with the first round (44) and its rotating shaft (37) is arranged essentially parallel to the rotating shaft (53) of the first round (44), and this driver makes steamboat (36) rotation.
9. device according to Claim 8 is characterized in that: this steamboat (36) is in engagement with the outer toothing (42) of the first round (44).
10. according to the device of claim 9, it is characterized in that: toothing (42) outside the first round (44) is provided with on its excircle, this steamboat (36) has gear ring (40), and the outer toothing (42) of this gear ring and the first round (44) is in engagement.
11. one of device according to Claim 8-10, it is characterized in that: the driver of this steamboat (36) is made of described driver (30).
12. device according to one of aforesaid right requirement, it is characterized in that: this first drive unit has reciprocating movement rod (56), its with one end thereof with respect to rotating shaft (53) spaced radial of planetary carrier (50) be hinged on this planetary carrier, and this driver (30) makes this reciprocating movement rod (56) along reversible the moving of its longitudinal direction.
13. device according to claim 12, it is characterized in that: this first drive unit has eccentric (58,60), eccentric can be supported rotatably around rotating shaft (61), the other end of reciprocating movement rod (56) with respect to this rotating shaft (61) spaced radial be hinged on this eccentric, this driver (30) makes this eccentric (58,60) around the constant rotation of its rotating shaft.
14. the device according to claim 13 is characterized in that: the rotating shaft (61) of this eccentric (58,60) be arranged essentially parallel to first and the rotating shaft of third round (44,52) extend (53).
15. device according to claim 11 and 14, it is characterized in that: this driver (30) and this steamboat (36) and eccentric (58,60) preferably mechanically connect by transmission device and/or around the seamless band (34) that moves, be used for jointly driving steamboat (36) and eccentric (58,60).
16. according to one of claim 2-4 and according to the device of one of claim 13-15, it is characterized in that: for the angular range of the oscillating motion of regulating planetary carrier (50), this reciprocating movement rod (56) and eccentric (58, the radial distance of rotating shaft 60) (61) is correspondingly variable, and/or in order to regulate the angular speed of planetary carrier (50), the rotating speed of this eccentric (58,60) is correspondingly variable.
17. be used for continuous wire rod (10) loop line shape bend to wire rod comb, especially one of require at least described device according to aforesaid right, wire rod comb has by to send out forked basically bending and the section of the loop line shape that tooth that be arranged side by side constitutes and connect these loop line shape sections, that extend along the longitudinal direction of wire rod comb and each other before and after the wire rod section arranged, this device has two and is arranged side by side, each interval and the pin wheel (2 that moves synchronously with one another, 4), these pin wheels have identical diameter basically and be provided with the pin (6 that a row extends radially outwardly on their circumference, 8), wherein, these pin rows have substantially the same calibration, but the pin (6 of these two pin rows, 8) at pin wheel (2,4) stagger each other on the direction of rotation, wherein, two pin wheels (2,4) rotating shaft (26,28) each other with an angle setting, this device also has loop line drawbench (12), be used for loop line shape wire rod (10) is alternately laid around the pin (6) of a pin row and the pin (8) of another pin row in succession, this device also has and is used to drive first drive unit of this loop line drawbench (12) and is used to drive this two pin wheels (2,4) second drive unit (64), it is characterized in that: be provided with the rotating shaft (26,28) that is used to make two pin wheels does not have the mechanism (65) that connects with relatively rotating.
18. device according to claim 17, it is characterized in that: this second drive unit (64) only drives rotating shaft and two pin wheels (2 of one of two pin wheels (2), 4) rotating shaft (26,28) constitute a common bending axle, thus, described coupling mechanism is made of the jointing of the bending of this bending axle.
19. the device according to claim 17 is characterized in that: rotating shaft (26) and this coupling mechanism (65) that this second drive unit (64) only drives one of two pin wheels (2,4) are made of cross-garnet butt.
20. the device according to claim 17 is characterized in that: rotating shaft (26) and this coupling mechanism (65) that this second drive unit (64) only drives one of two pin wheels (2) are made of the middleware elasticity of flexure, torsional rigid.
21. device according to claim 17, it is characterized in that: this second drive unit has two drive motors, one of them drive motors drives the rotating shaft of a pin wheel, and another drive motors drives the rotating shaft of another pin wheel, and be provided with control device, two drive motors of this control device control make them work according to the mode of common electric drive axle together, thus, this coupling mechanism is made of this control device.
22. the device according to one of claim 17-21 is characterized in that: the angle setting of the rotating shaft (26,28) of these two pin wheels (2,4) is adjustable.
23. device according to one of aforesaid right requirement, has at least one discharger (24), be used for the curved section after the bending is transferred to from loop line drawbench (12) pin (6) of one of two pin wheels (2), it is characterized in that: this discharger (24) is constructed to be supported rotationally, basically Yuan Xing dish, this rim its circumference and is provided with control curve (66), this control curve has at least one outstanding section (66a), wire rod section after the bending on this section and the loop line drawbench (12) forms by touching, and the wire rod section is pressed onto on the pin (6) of pin wheel (2) from loop line drawbench (12) when rotating in that this dish is continuous.
24. according to one of claim 2-4 and according to the device of claim 23, it is characterized in that: by the rotation of the discharger (24) of driver (30) drive by with the reversible swing synchronization of planetary carrier (50), make that when the angular speed of the third round (52) of epicyclic transmission mechanism (32) reaches its minimum of a value the wire rod section formation after the bending on described at least one outstanding section (66a) of control curve (66) and the loop line drawbench (12) is by touching and it being pressed onto on the pin (6) of pin wheel (2) from this loop line drawbench (12).
25. the device according to claim 23 or 24 is characterized in that: this discharger (24) is constructed to the bowl-type dish, and its outstanding vertically edge constitutes control curve (66).
26. the device according to one of claim 23-25 is characterized in that: this discharger is constructed to wobble-plate.
27. the device according to one of claim 23-26 is characterized in that: the rotating shaft that the rotating shaft (25) of this discharger (24) is arranged essentially parallel to loop line drawbench (12) is provided with (14).
28. the device according to one of claim 23-27 is characterized in that: this first drive unit drives discharger (24) and makes the rotation continuously basically of this discharger.