DE1574626A1 - Device for adapting the stroke length of the drive lifts transmitted to a stepping mechanism to the conveying requirements of a material conveyed by the stepping mechanism - Google Patents

Description

Device for adjusting the length of the stroke of the actuator stroke transmitted to a stepping mechanism to the conveying requirements of a good conveyed by the stepping mechanism

The invention relates to a device for adjusting the stroke length of a crank drive or the like. here AnrlebshObe transmitted to a stepping mechanism to meet the requirements of a conveyed by the stepping mechanism Good thing, special about aligning the funding steps a patterned, preferably printed tape to a processing point, e.g. a punch press, to the operator, so that the processing or punching takes place only in a predetermined, precise alignment for sampling.

It is known from metal sheets which have been removed from rolls and previously printed with uniformly repeating coughs Closing caps / Ur bottles in a stamping press, Punch out lids and other objects. The main disadvantage of punching out such preprinted metal bands is however still that either a relatively small number of steps per minute and thus a small performance of the punching device must be accepted, or that it is in the case

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a modification for achieving performance improvement ainer limited increase eggs Zuförderachrltte is impossible per minute, the gradual advancement of the metal strip to control as accurately tu that the punched comply with the presupposed exact location üm su \ Orucknustern the metal strip.

The invention is based on the object of perfecting the aforementioned Müngal su vermaldan and the adjustment device mentioned at the beginning so that even at high working speeds of the punching press and accordingly at high gradual speeds of the metal strip or other conveyed goods, the required precise alignment of the goods has /, üor the print pattern on the metal band is reliably guaranteed. The adjustment device should be as independent as possible of the construction of an existing punching press, for example, and it should also be easy to retrofit into any press construction. Especially after HBgllchkeit no installation problems will arise when the press intersecting or angled consecutive drive shafts are provided between the main drive and dam iufSrdurantrlfih "

The shared task is essentially development dursh «1» in the mtrlebs connection sun step switch ant / nordnataii Bwlschentjliad the adjustment device mentioned at the beginning yalöst, the älnen fixedly mounted, with a

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The pivot lever provided with the stop flange, which is coupled to the step-by-step mechanism as well as a connecting linkage of the crank drive, by a number of stop cams or the like interacting with the stop flange. _t the control device responding to the impulses of a control device, depending on deviations in the actual position of the conveyed goods e.g. the connecting rods via a tilting mechanism which, if the stop surface abuts a stop cam, allows a relative movement of the pivot point of the connecting rod with respect to the pivot lever and thus an uninterrupted further rotation of the crank drive or the like.

With an adjustment device designed in this way, the required exact adjustment of the step-by-step requirement can be observed even with a very large number of steps of, for example, 300 switching steps per minute.

According to & B a preferred embodiment of the invention is the Pivoting lever is provided with a preferably symmetrical cylindrical Veil arranged around its bearing point the at least one stop forming the stop surface

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is set adjustable, and has the tilting mechanism in Distance from its bearing parts.

Other embodiments of the invention relate to others structural details, including the interaction of the device with an overrunning clutch of the stepping mechanism and the ability to move the stop cams out of the movement path the stop surface of the intermediate member by means of electromagnets, the adjustment device according to the invention.

In the drawing, the invention is illustrated by way of example; show it:

Fig. 1 is a schematic side view of a first Embodiment of the between a main drive shaft of a punch press and an indexing mechanism a conveyor device for feeding in a metal strip, arranged according to the invention;

2 shows a second embodiment in the same representation the adjustment device, which on the one hand with the main drive shaft via a connecting rod and on the other hand, is directly connected to the stepping mechanism;

3 and 4 enlarged detail representations an intermediate member of the adjustment device according to FIG. 1 in its starting position or in its tilted position;

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Flg. 5 the intermediate member according to FIGS. 3 and 4 in one

Side view (partly in section) along the line V-V of Fig. 3;

6 shows the intermediate member according to FIGS. 3 and 4 in a partial longitudinal section (partially in view) according to the Line VI-VI of Fig. 3;

Flg. 7 shows an adjusting device associated with both embodiments for simultaneous changing of the contact surfaces with the contact surface of the intermediate link interacting stop cams

Both embodiments described in more detail below of the adjusting device are on a punching press 1 indicated schematically in a partial section in FIGS. 1 and 2 arranged with a guide track 2 for a (not shown) metal band, from which closure caps for bottles are punched and on which the caps matched, regularly repeating print patterns are arranged. The feeder for the metal strip has an indexing mechanism with an overrunning clutch 3, which is shown in FIG a straight, length-adjustable connecting rod 4 is coupled to an intermediate member 5 of the adjustment device. The connecting rod 4 is on the outer ring of the overrunning clutch 3 via a pre-joint 6 and on the intermediate link Articulated via an articulated connection 7 · In the case of the one shown in FIG However, there is no such connecting rod for the reasons explained below.

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In both versions, the intermediate link 5 is on its side remote from the indexing mechanism. A drive rod 8 "and a crank pin 9" that can be adjusted in relation to each other is bonded to an eccentric IO that is adjustable in its axis centricity and which is arranged on the main drive shaft of the punching press along the guideway 2 are carried out by a conveyor belt. which is driven by the main drive shaft of the punching press via the intermediate link 5 of the adjustment device.The adjustment device ensures that deviations between the actual position and the theoretically required position of the print patterns that are to be punched out of the metal strip are automatically compensated during each conveying step , the one »work process bz *. The punching process precedes the punching press This adjustment takes place by a corresponding enlargement or reduction of the stop stroke transmitted to the indexing mechanism from the main drive shaft with uninterrupted further rotation of the main drive shaft On the metal belt, it scans the markings located at regular intervals and sends the corresponding pulse to a control unit of the adjustment device, which then determines the size of the metal belt conveying steps according to the control.

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The intermediate sliding element S of the adjusting device has a pivot lever 11 which is rotatably supported at its bearing point by means of a bore on a bearing journal 12. The bearing journal 12 is arranged in a stationary manner at a suitable point on the punch press, while the pivot lever 11 around its bearing bore still has a concentric cylindrical part 13, which is connected in one piece. In the second embodiment shown in Fig. 2 , the bearing bore of the pivot lever 11 is made so large that the pivot lever can be fixed directly on the outer ring of the overrunning clutch 3, which in turn is mounted on the output shaft 12 * of the indexing mechanism, from which the step-by-step Suföräerung of the metal band to the punching press 1 takes place in the usual, not particularly shown manner.

The drive rod 8 is above the pivot lever 11 Rocker arm 14 connected to which it is articulated via a pivot pin. The rocker arm 14 is on the pivot lever 11 over a bearing pin 16 is rotatably mounted and essentially has the shape of a three-member mounted in its center Bebeis, whose arms are distributed in a star shape around the bearing area are arranged, while the one arm carrying the pivot pin 15 is in the starting position shown in FIG of the rocker arm 14 extends approximately to the right, so another arm 41 extends to the left and down. the third arm 19 to the top left.

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The system formed by the drive rod 8 and the rocker arm 14 is under the action of a compression spring 17, which is guided on a rod 18 1st The rod 18 Is hinged on the one hand to Are 19 of the rocker arm 14 and on the other hand axially displaceably guided in a guide piece 20 «which is on pivot lever 11 by means of a dashed line in FIGS indicated bearing bolt 21 is rotatably mounted. Lock nuts screwed onto the free end of the rod 18 22 allow the effective length of the rod to be adjusted «Irish of their articulation parts on the Ar» 19 and the guide piece and thus the exact setting of the from Flg. 3 starting position of the articulation pin 15 of the rocker arm 14.

As can be seen from FIGS. 5 and 6, the whole can, according to FIG 1 to 4, on the one hand, of the pivot lever 11, the rocker lever mechanism visible twice, i.e. also in the same way be provided on the rear side of the pivot lever 11, which is not visible in FIGS. 1 and 2. The rod 8 is in this Case at the two articulation pins 15 via a fork head comprising the pivot lever 11 and the two rocker arms 14 hinged.

According to Flg. 1, the lower arm 41 of the rocker arm 14 on Outer circumference of an Exzenterholxens 23 rest on the pivot lever 11 is adjustable. This Exxenterbolsen 23 secures the rocker arm 14 against tilting after

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wrong side, if for example the rod 18 should be broken or the lock nuts 22 see due to constant vibration " Bean trials should have money * Bine the wrong tilting movement de · Rocker arm 14 would not only be the right one Work of the fishing equipment and the correct drive de · prevent stepping mechanism, but also the danger damage the drive mechanism with calibration

The cylindrical part 13 of the pivot lever 11 carries a Kiemring 24, which runs in the circumferential direction of the cylindrical valve 13 and set in any setting by means of a clamping screw 25 on the cylindrical part 13 «Can ground · The clamping ring has a on its outer circumference Stop 29 sur S interaction with stop hook 2? of sur control of the connecting link S serving control device «

On a frame 42 of the control unit are (for example three) levers mounted next to each other, dl · at one of them, according to Fig. 1 right ends 26 are rotatably held. At their other ends, the levers each have one under a transverse pin of the special stop hook 27 protruding Ansat. The Ansehlagnooken 27 are side by side, so by means of each its own cross pin on the Ansats of the arranged Bebeis on · 81e are guided vertically displaceably in the frame 42 · Each lever is next to its attachment with a

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Lifting magnets 28 coupled · These lifting magnets speak to the Control signals from the mentioned control device to · Above the lifting magnets 28, the stop hooks 27, which work in synergy with the stop 29 as an erensansehlage for the rotary movement of the pivot lever Ii when it rotates around the bearing pin 12, are raised of the pivot lever 11 is ended when the stop 29 strikes against one of the stop cams 27 »

The said stop 29 sugekehrten Anschlagf laugh the Anschlagnooken 27 are transversely sur plane of movement of the pivot lever 11 staggered to each other arranged, and the control unit operates so _r the each of the Ansohlagnocken protrudes into the Bewegungebahn of the stop 29 27 "which effects the desired limitation of the Sohwenkwinkels of the pivot lever ll.

The tilting mechanism consisting of files 14 to 23 and 41 enables the ee of the eccentric IO and the Drive rod 8 continued uninterruptedly regardless of this can be determined against which stop hook 27 the stop 29 is just striking, as can be seen from FIG. 3, the axis lies of the bearing pin 16 in the initial position of the rocker arm 14 somewhat below the longitudinal axis of the drive rod 8 · As a result causes the tensile force to act on the articulation pin IS Drive rod 8 with a rotation of the eccentric

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from the in Flg. l shown initial position on the rocker arm 14 “you do a twisting motion counterclockwise, but that supported by the rod 18 and the aw rohrungssteek 20 eegenstttfcezn 22 aofgencssftea, also forms the Kxxenter 23 a slapstick, which does the job of the pole 18 utoenehsnn can, if the bracket of the rocker arm 14 Above the bar 18 bobeispielaweis “because of a Bruce the Rod 18 should fail.

HShtatsd of Arbeitshvbe * of the drive rod 8, the pivot lever 11 Jm Chrselgarsinn vtm the bearing pin 12 is rotated (see. Fig. 4}, where calibration of the eccentric 10 rotates la Gegenuhrseigereinn. Tnfolgedessen the Anlenkbolzes 15 shift tmd the Lagerbolxen 16 each other in each case along a circular arc wherein the Lagerbolsen 16 allsähllch vmä soblieelich fiber the LSngsachse the drive rod 8 via the Anlenkbolsen IS and dasdt the same side of this Aohse as the arm 19 of the rocker arm 14 comes ι see. Flg. 4. However, the compression spring 17 prevents to "I aöglicfees Rotation of the rocker arm 14 ix in the auricular direction due to the tensile force acting on the articulation pin 15, as long as the attachment 29 has not yet hit the attachment foot of a naoha 27. If this occurs, the tensile force of the drive rod 8 exceeds the compressive force of the compression spring 17 and pivots now the rocker arm

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la clockwise «ο far, that the rotary movement of the main drive shaft the punch press and. of the eccentric 10 can be continued without interruption · The compression spring 17 prevents thus a premature pivoting movement of the rocker arm 14 in the aforementioned, inherently unstable position of the rocker arm 14, which, however, is necessary so that the rocker arm in Case of the joint action of the stop 29 «dt the stop fish of a stop cam 27 in the aforementioned manner can swing out.

During the return movement of the drive rod 8 comes with the pivoting back of the rocker arm 14 in its starting position and the compression spring 17 again in its most relaxed Position, the starting position of the rocker arm 14 (see. Fig. 3) is determined by the setting of the lock nuts 22. This starting position will continue to be secured by setting the eccentric bolt 23 accordingly.

In the embodiment shown in FIG. 1, the Bearing pin 12 fixedly arranged at a suitable point of the punch press, which is between the eccentric 10 and the Stepper located 1st. This embodiment is particular advantageous for those machines or presses in which the drive of the feeder device is more complicated, for example is formed with intersecting or mutually angled shafts.

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In the embodiment shown in FIG. 2, this is Intermediate link 5, on the other hand, is arranged concentrically to the output shaft of the indexing mechanism of the feed ordering device The bearing bore of the pivot lever 11 is made so large that the pivot lever 11 is directly on the outer ring the overrunning clutch 3 of the stepping mechanism can be set. The axial output shaft 12 * of the overrunning clutch 3 then at the same time forms the drive shaft which can be adjusted in its respective crouching movements in the manner described above the feed device for feeding the metal strip · Hegen this simple design of this embodiment the connecting rod 4 (see. Also Fig. 3 and 4) are omitted.

Care must be taken in both of the embodiments described that the stop cams 27 are movable up and down in a substantially vertical direction, so that in the event of the associated lifting magnet 28 being switched off, they can fall down again due to their own weight. By a corresponding adjustment of the rod 18 by means of the lock nuts 22, and thus by a corresponding one Adjustment of the rocker arm 14 can adapt the tilting moment required to swivel out the tilt lever 14 adjusted to the given circumstances. Since the adjustment device allows the setting of any tipping point of the

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described tilting mechanism closes, it can easily also interact with an eccentric 10 which can be changed in its eccentricity

The changes in the stroke lengths of the drive shaft or the drive rotation angle of the stepping mechanism are determined by the corresponding stop cams 27. The initial stroke length is achieved by setting the clamping ring 24 accordingly and its stop 29, which runs along the periphery of the cylindrical part 13 of the pivot lever 11 can be adjusted 25 loosened and the main drive shaft of the machine rotated so far from the tape until the stop 29 at the end of the working stroke of the drive rod 8 just the desired link setting has reached, whereupon the clamping ring 24 on the cylindrical part 3 is clamped again.

An in Fig. 7 shown adjusting device sum shifting the stop surfaces of all controlled stop cams 27 which limit the working stroke of the pivot lever 11. lift practical operation For example, it is preconceived that the regulation 1 »trap circumstances become one-sided "which change only to a very small" extent. So it can “intreten,” the course of one automatic changes, either positive or negative, occur during a longer company tent. By relocating

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the stop flange of the connections 27 can be opened on one side. Wa w Flg. 7 uervorgentr the Klnstellvorrlcfatung on an adjustable KeU 90, the "Hf an Oawlndeatanga 31 by means of a corresponding Cewndeliohruny and immediately Ib a" fan 32 is non-slidably guided. Br acts «1t its wedge foot old a« Drude »tflcfc 33« niiwaa »« that is Oehlqse 32 transverse star direction of movement of the rope) 90 slidably guided. The free outer corner 34 of the pressure substance, which is remote from the wedge 30, acts on the contact areas 27 in the sense of their displacement. The displacement of the pressure force 33 is possible because it is guided to the guide guest parts 36 of the Geosnses 32 by means of a long locomotive 35. The longitudinal sliding bong of the wedge

30 can be rotated by means of a rotary knob 37 on taps 32, but not adjustable threaded rod

31 by hand or automatically by a control device come from

As shown in FIG. 1, the length adjustment of the connecting rod 4 and the drive rod 9 are used for clamping locks 38 and 39, which form components of the rods. By means of the Spannsohlasse 39, the position of the pivot lever 11 relative to the Anechlagnocken 27 can be adjusted «while by adjusting the turnbuckle» 38 the FOdw of the conveying steps of the sn demanding Mtallbandee or the like.

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«Can be placed. Bai the in Wg. 2 shown Only the drive rod 8 with a clamping SdULoB is the only guide 43, which here immediately punctures both tension locks 38 and 39 of the first Aueffihnmgsfox » (Fig. 1) exercises.

With the Aaglelchvorrichtung described can be practical in every common press bit of an intermittent feed and treatment of strip-shaped material, from dea to the Processing point aligned with the bestisate surfaces be guided «oases, a precisely controllable step by step InfBhruxig of the material on the processing question «parts can be achieved. The device described can either already be included in the original construction of the press or it can also be added retrospectively to an existing press to be built in. The adjustment device described can be used, for example, in the production of so-called crown corks, of metal sheets for cans, of lids etc. are used · This is, for example, in the case of processing of a new product also aOglloh, the complete working stroke of the suction device using the device particularly precisely,

Me real! «Conveyor snr gradually Sufficiency of the goods to be treated and the KoatroUgerlt sum

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Scanning the gate is not part of the present invention.

The invention is not bound by all Binselheiten duz described and illustrated AasfOhrimgsbelsplele. 80 knew the Angleiohvorrlchtung to align a step-by-step fed and to be treated strip-shaped material or other goods on 'the treatment or processing parts serve any other machine , without thereby leaving the scope of the invention laid down in the claims below.

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Claims (1)

1. Device sin adjusting the stroke of a crank drive or the like. from an indexing mechanism to the order requirement reading of a product required by the indexing mechanism, in particular adapting the air flow steps of a patterned, preferably printed belt to a processing point, e.g. a punching press _r to the sampling, so that the processing or
Outputs can only be made in a pre-determined, precise alignment for sampling, identified by a in the
Drive connection stm step-by-step mechanism (overrunning clutch 3) arranged intermediate member (5) of the adjustment device, the
a stationarily mounted pivot lever (11), which was previously provided with a contact surface!
(Drive rod 8) of the crank drive (eccentric 10) is coupled by a number of bits of the stop flute (stop 29) «usaawenffektenden Ansohlagnocken (27) or the like., Which from a responsive to the impulses of a control device control device (solenoid 28) depending on deviations in the actual position of the required goods or the mast of the band · from their theoretically required target position in the movement path of the anchor surface (stop 29) of the pivot lever (11), and by a BATH
109823/0085 Coupling of the swivel lever «(11) alt the connecting rod via a Klppciachanisaus, the case of the stop of the Anechlagfllehe (stop 29) on a stopper (27) a Relative movement of the anleakptmktea (articulation bolts IS) of the connection (Antxlebestaiige 8) opposite the pivot lever fll) "MI so" Ine uninterrupted helter rotation dee Knrbelaalriebe "(eccentric 10) or the like perm & et. 2. Device according to _{spoke l r} characterized in that the pivoting lever fll) adf: eistest m its bearing point (bearing pin 12 b «w. Abtrlebewella 12 ·) hertat arranged, before» 3ug8welse fconsentrleohen cylindrical rope (13) strand on the «» enlyitena one that forms the attachment surface (29) elnstellbair feetgolegt let, and the Klppmichanlenme la distance from its Itagora parts. 3. Vbrriditisig according to claim 1 or 2, characterized in that the Verblndvagsgestänga sus an in its length preferably adjustable Antrlobostange (8), on the one hand "indirectly old in their length variable or" variable toggle (eccentric 1O) and on the other hand • Inen articulation pins (15) xdt elaea era of a rocker arm (14) of the Klppsech & nlsaus is connected, which is rotatably mounted at a point (position pin 16) aa pivot lever (11) located between the two ani * nfceteile (Kuxbelxapfea 9 and articulation pin 15). BAD ORIGINAL 109823/0085 4 »Device according to claim 3, characterized in that the rocker arm (14) on a riding arm (19) not with one Connect the end of an adjustment device (17 to 22) in an articulated manner If the other end is connected to the pivot lever (11) is· 5c device according to spoke 4, characterized in that the adjusting device has at least one guide piece (20) articulated on the pivot lever (11), one of which is longitudinally displaceable on the latter driven, with one end aa At (19) hinged and with the other end via an adjustable one Ansehlag (lock nuts 22) supported on the guide piece Rod (18) and a compression spring (17), which are arranged between the Anlenkßtello (arm 19) and the guide piece (20) is. 6. Device according to one of claims 3 to 5, characterized in that that the rocker arm (14) has a third arm (41) with which it is in its non-tilted end division can be adjusted in an adjustable manner alt a stop (Bscsenterbolsen 23) arranged on a swivel lever (11) * 7. Device according to one of the preceding claims, characterized in that the pivot lever (H) is arranged axially rigid output shaft (12) of an overrunning clutch (3) de «Soferittsctialtwerkes ι Flg. 2. BATH ORIGINAL 109823/0085 1674626 gofwenfrhehel the CID immediately m Aaßenring acting on his Abtriebewelle · (12 ·) ft * ilaafkapplang (3) set ISTF rig. 2 · 9. Device according to one of the speech 1 to €, dadu knows that the stored in a separate storage location (warehouse sapfen 12) stored · swivel lever (11) with the »step switch mechanism (reilaufJcupplong 3) via an adjustable length Linking structure · (Varbindtngsstange 4) articulated connected is; Flg. 1. 10. Device according to one of the preceding address, characterized by a tape or automatically operated Adjustment device for loading the support surfaces of the stop cams (27) and / or the adjustment of the stop surface (Stop 29) opposite the swivel lever (11). 11. The device according to claim 10, characterized in that the adjustment device screwed on a gear thong (31) that can be rotated on a sur adjustment ▼ and into a « CSehluse (32) Ungs of the same slidably guided wedge (30) has, the sULt a 1 »same housing (32) transversely sum Wedge (3O) movable printing block (33) susajsaemrirfct that with its free outer edge (34) remote from the wedge (30) _BA 0 109823/0 085 -22- I574626 acts on the abutting stop cams (27); Pig. 7th 12. Device according to one of the preceding address, characterized in that the stop cams (27) by Electromagnets (28) can be moved out of the path of movement of the stop surface (stop 29). BAD ORfQfMAL 109823/0085