DE1602237A1 - Spooling or winding device for strand or thread-like goods, e.g. wire - Google Patents

Description

Spooling or winding apparatus for strand or thread-like material, e.g. wire

The invention relates to a winding or wokel apparatus for winding a bobbin with strand-like or thread-like material, such as wire, with an electric motor drive for the coil or the thread guide and means to be independent of the Aufgiekelstatus Keeping the pad tension constant.

Such devices are used, for example, to aua a Drawing machine to wind up incoming wire on supply spools or for the production of windings as they are used in further processing machines or electrical devices, e.g. relays, are used · As the reels fill up, their diameter decreases naturally too. If the thread tension is to be kept constant, the torque resulting from the thread tension therefore changes Coil continuously, i.e. it increases with the winding diameter. Since the delivery speed of the wrapped goods a »daa e.g. from eiaer Wire drawing machine can come, in which Hegel remains the same »decreases you-Drehzahi with-increasing winding acid ohms; from «For the vokt train;

0Q9Ö19 / KH9

The relationship applies to the moment caused in the winding material

where Ug is the moment at the coil »d ^ the respective winding diameter and P is the tensile force in the winding material (thread tension) »

For the connection between the winding speed v ^ and the reel speed η applies

d _w = κ ·. ι

where E and K ^{1 are} constant conversion factors and in K 'the constant v ™ · has already been taken into account »By inserting the expression for d ^ in the relation for M ~ we get

. J.

where in the constant Uereunefactor £ * the constant the train P is taken into account «From the above statement it is clear that in order to produce a constant thread tension, the

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ORIGINAL JNSPEGTED

Must drive the coil in such a way that its drive torque is reversed proportionally

nal to the reel speed · The torque characteristic shown over the reel speed is therefore a hyperbola. The drive torque is made up of the coil torque M "and a heating torque Mp. The motor torque is therefore M" _Q. = Mg + M «.

The thread tension on decannt winding and winding devices continuously scanned with the help of a dancer arm. If the thread tension changes, the dancer arm pivots while overcoming one (rain moment and causes a regulating intervention in a mechanical or electrical speed control device · That means that in the known devices the voltage through the dance arm maintained and the coil drive is influenced so that the position of the dancer arm as little as possible from a target position deviates. These known control devices are expensive, which has a strong effect on the total price of the winding apparatus.

The invention is based aie on the task of creating a winding or Y / ickel- apparatus with which a constant thread tension is maintained while dispensing with a speed Hetein.

This object is erfinaungsgemäß achieved in that j -ie ^ - 'ehmoment characteristic ^ j £ _Ot ^m £ ^ ⁿ Mot ^ ^{oF AXB Kon} ^ ^{eil3a' tornio 'tcr m} ^ ldasBivrotor formed electric motor by "anl a capacitor certain capacity at least approximately the same or just around

BAD ORIGINAL ~ ⁴ ~ 009819 / 1CU9

a fixed factor ver ^ n ^ ert runs like that under the premise constant thread tension regardless of the winding condition and the coil characteristic resulting from the friction losses in the drive.

In the simplest embodiment of such a winding or winding apparatus Only one motor is required for the shaft on which The bobbin or the thread guide is to be attached directly drives. Further sealing equipment is not required, as this is done on its own The speed-torque characteristic of the motor has a constant The thread tension is maintained. So with the invention a fundamentally different known opulapparaten the bias of a dancer arm the thread tension regulated, sound the one assigned to the respective speed Torques of the drive motor, ^ he apparatus thus becomes extremely simple and robust and can be used much cheaper manufacture than the Deriar.nxen Spul- Oier wicitelapparate. The size Hobustiieit dt-r device guarantees error-free aroiding.

A fixed gear ratio can be built in between the reel or loader drive, for example in the form of a toothed wheel drive or a toothed belt drive. With such a simple mechanical unit, one and the same motor can be used for different operating conditions. If e3 aioii is about a thicker ^ alite, which is to be wound up with a stronger tension, it is translated into long name, i.ri » \ ± e , / eile, _ö .ui 'aer aie

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BATH

Coil or the pad guide is attached, runs slower than that Motor shaft. Is that the .torque for the special operating case The motor shaft is too big, so it can be in any ratio can be reduced by a translation into the sonelle, which also increases the speed of the spool

Several motors can also be coupled together to drive the bobbin or the thread guide together by coupling the motor shafts or intermediate gears. This means may, for example, _o be applied when the power of an engine is not sufficient · Despite use of two motors can be less expensive than when using a larger special motor which is built in only small quantities, the entire construction ,, addition, the characteristics stronger at Motors no longer have the desired course due to greater losses. If the additional motor is only used as a starting aid, it can be coupled via a freewheel or a magnetic coupling.

A multi-motor arrangement can, however, advantageously also be used a control device, e.g., with a time relay for switching off at least one of the several motors after reaching the full reel speed and for switching on at least one of the several Motors to be combined when the apparatus is shut down. In this The additional motor would only serve as a starting and braking aid serve, while it runs idle in stationary operation or may be completely disconnected. ' Such an arrangement is sufficient

■ "" ■■■■ -. · 00981971049 bad-.original

t6-

a very simple control device for regulating aer start-up and Braking processes, which justify the use of an additional motor can"

The invention can be used just as well as with a winding apparatus and with a disgusting apparatus. A winding apparatus according to the invention is characterized by an arm arranged on a slide that can be pushed back and forth for receiving the bobbin to be wound and an arm which is aligned with the arm 'suture carrier "even with a winding apparatus changes when gegeoener? adenspannung the torque to the level of inflation of 8rehenden in aiesem Pail coil" the inventive use eine3 motor with appropriate characteristics ensured even when a winding apparatus orjae additional facilities consistent i'adenspannung _a

7 / As mentioned at the outset, the simplest embodiment is one Apparatus according to aer invention from the drive motor and aer jelle to put on the coil. With higher demands on the exact Keeping the i-adenapension constant can, however, be necessary that fluctuations in the mains voltage must be taken into account. Sin Apparatus with which fluctuations in the heating voltage are taken into account can, has a 'lancer arm, aesjen position of aer' .thread tension is dependent and one of the. Dancer-poorly driven, preferably arboreal Potentiometer for regulating a constant voltage on the motor

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BATH

Regardless of fluctuations in the Heta voltage, the mains voltage remains unchanged after, the thread tension decreases and the dancer arm moves and adjusts the potentiometer in such a way that the motor voltage is enlarged. If the line voltage rises and with it that Torque of the motor, the dance is done in the opposite direction verstej.lt and the potentiometer adjusted so that the voltage at the terminals of the motor is reduced ·! "alls A voltage stabilizer is available in a system the device described is unnecessary

be '· ■ ■■ - - ^; ■ '.

Coils wound with wire can be very heavy. As a rule, they have a high speed, so that a considerable amount of kinetic energy is stored in the rotating bobbin would have to be. To avoid this, ΐ; _; · Ϋ́ according to a Vielt ei ¹ education aer invention, a DC power source, a rectifier preferably vorgeseiien from which dienenuer from the initiation of braking, direct current in the Hotor fed Wix * d, as well as a serving for shutting off the DC current time relay · 3eim braking operation will now be from the DC power source fed into the motor from direct current. * ;; which generates a braking magnetic field. This enables such a strong force to be achieved that the bobbin is stopped without a significant increase in the pad eye. For the purpose of braking; A further po-centiometer driven by the fan arm can also be used to control the - - "-"'"■"■'"■■ ■■■ - T-- ■■""" ■■■

0 0 9 8 IS / 1 QA 9 " BAD original *

DC braking voltage to be applied to the motor is provided With this additional device, the braking torque can be adjusted in exactly the same way control, daia the thread tensioner even when the bobbin drive is stopped remains constant within narrow limits »

You can also manage with a single potentiometer to control both the motor voltage and the braking current, its Connection points by switching over using the contactor switches of the respective Function accordingly. As a starting point can also be a time relay in combination with a starting capacitor can be used, whereby the time relay has an additional capacitance, i.e. a starting capacitor, during the start-up process switches on.

In a particularly advantageous embodiment of the invention, a dancer arm that also acts as a magazine is used, the position of which is dependent on the thread tension, this dancer arm actuating a limit switch in at least one of its end positions. Thus, this operation can take place d.es magazine at maximum filling \ "; already hen the braking of the coil is initiated in this case, then through the End-Chalter DC braking interrupted In this x'eise can the braking process very simple.. If the braking is too strong, the magazine fills because the spool no longer winds up enough wire. The filling of the magazine is used according to the invention to regulate the braking process.

0098 19/10 49 -...

When the magazine is filled to the maximum, a limit switch can also be actuated through the capacities and / or another motor be switched on. This increases the drive torque of the coil elevated. If this has reached such a high speed that the dancer arm is lifted off the switch again, which results in an emptying of the magazine is equivalent, the drive torque is reduced again. In this case the limit switch does not become a control the braking process, but for regulation during normal Winding operation used "

Finally, a limit switch can be so arranged that it is at with the magazine being filled to the minimum. This minimal filling is e.g. due to the rapid startup when starting the Spooler achieved by actuation, one accordingly arranged further limit switch, the drive torque is through Switching off capacities and / or by switching off another one Engine reduced. It is clear that this increases the spool speed is reduced so that you can fill the magazine again

To lock the spool shaft, a brake can be used, preferably a Band or shoe brake may be provided. Eiiie such a brake relieved changing the coils.

On the basis of the drawings discussed below, which also include exemplary embodiments show the invention, the invention is closer explained; show it:

009819/1049 Λ10-

Fig. 1 is a "vertical section through a winding apparatus with direct drive of the spool shaft,

1a shows a view of a dancer arm in the direction of arrow Ia in FIG. 1,

Fig "2 shows a winding apparatus in which between the drive motor and Spool shaft a translation is switched,

3 to 6 multiple motor arrangements for driving a single one Kitchen sink,

7 shows a multi-motor arrangement for driving two coils,

Fig. 8 shows a diagram ti i) arj division of a winding device with an arm for holding a spool,

9 and 10 two rotary potentiometers for controlling the motor voltage or the brake voltage on the motor and

Fig. 11 shows a diagram with a torque characteristic curve.

First of all, the basic structure of a winding apparatus is based on FIG. 1 described according to the invention. Fig. 1 is a schematic representation. The main parts of the winder are a Housing 1, the drive motor 2, the spool shaft 3 and the spool 4 and the dancer arm 5.

In the housing 1 is a base 6 for the electric motor 2, namely a Konäensator-Motor with massive rotor is provided. The spool shaft 3 is mounted in the housing on atz 7 with-uels of the ball bearings 8 and 9 and with. coupled to the engine via a coupling 10. The right The end of the spool shaft 3 protrudes freely from the bearings 8, 9 and is provided with two centering cones 11 and 12, which form the ends

D0 9819/104 9

center the bobbin. The cone 11 is firmly seated on the shaft 3; while the cone 12 is longitudinally reversed. The cone 12 is only placed on the shaft 3 after the bobbin has been pushed on and pulled against the spool 4 in the axial direction by means of the nut 13

The individual parts now described are already sufficient for simple operating requirements if the motor 2 is selected as shown below with the aid of the Pig diagram. 11 is described · In this diagram, the torque of the motor ^ m ₀ + or the coil Mq_ is plotted in omkp on the abscissa, while the ordinate shows the speed η of the drive motor or the coil in revolutions / min. Two characteristic curves 14 »15 of the motor are plotted. The characteristic curve 14 results when a capacitor with a certain capacitance is used, namely a capacitor with a capacitance of 4 / UF, while the characteristic curve 15 results from a capacitor with a capacitance of 6 / u /. The bobbin speed is in the range from 1200 to 2200 rpm. With a constant thread tension of 200 G-ranim, neglecting the Eeibong results in the speed-irecmoment characteristic curve 17 · With consideration; the friction increases the motor torque Eating counter torque, so that the line 16 arises · As the diagram clearly shows, this torque characteristic is largely parallel to the motor characteristic ·.

If the engine 2 ζ · Β · has the characteristic on line 34 and iadenspaniiung s, 3. 200 G-raam is supposed to be

Q09819 / 1CU9

BAD ORIGfNAL ^ -? _

Pad tension almost exactly from the behavior of the motor alone. If the winding diameter is small, that is to say the bobbin 4 is not filled enough, the speed is relatively high, for example 2,000 rpm. As the winding diameter increases, the speed of rotation becomes slower, since the speed of movement v "of the wire coming from the drawing machine 20, of which only the drawing disk 21 is shown, remains essentially constant . the bobbin is fully wound, the speed 1200 rpm is reached. During the entire winding process, the thread tension has remained essentially constant, since the characteristic curve required for a thread tension of 200 grams has almost coincided with the motor characteristic curve.

In Fig. 2 iit an embodiment is shown in which a gear 22 is connected ^{between the coil 4 and the motor 2 1.} This gearbox consists of a larger gear wheel 23 that sits on the motor shaft and a smaller gear wheel 24 that is attached to the spool shaft 3. So you get a speed ratio, because the Drenzanl ^ he coil 4 is greater than the speed of the motor 2 ^1. This reduces the torque in a fixed ratio speed, smaller thread tension). ■

Furthermore, in the embodiment according to FIG. 2, a cam disk 93 is connected to the aera dancer arm, which cooperates with the button 94 of an electrical pulse generator 95. Such a device can be used instead of the potentiometer arrangement according to Fig. 1 _f 1a, 9

009819/1049

and TO can be used. In this case, however, only a step-by-step regulation is possible, while regulation is carried out by means of a potentiometer is stepless. The advantage of such an arrangement lies in the lower sensitivity, as there is no movement between the a f / iderstahdswioklung and a load arm occurs *.

Further arrangements are in the Pig. In the embodiment according to Pig »3, the coil 4 is driven by three motors 25, 26, 27 in total. The two motors 26 and 27 jointly drive a gearwheel 28. The gearwheel 28 meshes with a gearwheel 29 which is fastened to the shaft of the motor 25. On the other side of the motor shaft sits q ± h gear 30, which meshes with a RitzeL 31 on the shaft of the coil 4 · You can increase the power as you wish, in the present Pail approximately triple it while maintaining a certain motor type. Detachable clutches, for example idle clutches or magnetic clutches, can also be connected between the motors.

In the Pig. 4, two motors 32 and 33 are directly coupled to one another (coupling 34) and jointly drive the coil 4. In the embodiment. According to Pig, 5 two directly coupled motors drive the coil 4 via a gear drive consisting of the gears 35 »36 · In the arrangement according to Pig. 6, with which a particularly short construction is achieved, ¹ 'sit on the shafts of the motors 37 and 38 arranged in parallel

BATH ORIGINAL

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Gears 39 and '40' which are seated with one on the spool shaft Pinion 41 mesh. '

In the above-described execution forms (Pig. 3 to 6) serve several motors to drive a single coil «, this can i-ls also serve to improve performance alone the starting and braking properties «In the latter case after starting at least one of the several motors switched off and switched on before braking. This can be done alone, on electrical paths, i.e. by exciting or not exciting the motor and also mechanically by coupling.

In the embodiment according to FIG. 7, two are arranged in parallel Motors 42, 43 used, but the Zannradgetrieoe 44, 45 or 46, 47 drive spools 4a and 4b. It is clear that the coil 4a runs at a much lower speed than the coil 4b. The torques on the coils are also different, with the Coil 4a has the greater (double) torque.

At the beginning of the description of the example, the dancer arm 5 (FIG. 1) was only mentioned briefly. ITachfol _G end will now be described the Funkxion this dancer arm in more detail _e The dancer arm is at 48 rotatably mounted on a chassis-mounted cover 49 tripod 50 mounted "at its left end are two rollers 51a and 51b (see also, Fig. 1a) is mounted. There is a counterweight at the rear end

QQ 9 819/1049

52, which is displaceable along the rod 53 forming the arm and can be clamped in any position. Two rollers 54a, 54b are mounted at the upper end of the stand. A roller 55 is mounted on the machine frame, via which the wire coming from the drawing machine 20 # 21 is stirred. The wire is passed over the rollers 51 and 54, is formed thereby forming a wire store whose content decreases as the dancer arm pivots clockwise and increases, · if it ever * enuhrzeigersinn versehwenkt in _<&, is.

In the vicinity of the bearing point 48 of the dancer arm, two potentiometers 56 »57 are arranged, -Ie in the pig. 9 and 10 are shown enlarged «As from i'ig. 1a, these potentiometers are driven by a gear 90 connected to the shaft of the dance arm, which meshes with small gear wheels 91 * 92 seated on aen potentiometer trowels. Each of the potentiometers 56, has a resistance winding 58 or 59 and an _{arm 60, 61 which scans} the resistance winding. The arms 60, 61 are firmly connected to the gears 91, 92. Before the dancer arm rotates, the feeler arms 60, 61 also rotate. The center of the arms 50, 61 is connected to a connecting terminal. From the consideration of the potentiometer it is immediately clear that when you adjust the swischenaeschalten resistor 58 Mw. 59 is varied, with which the motor voltage or the motor brake voltage can be regulated. In the 5 ^l all of the drive can aaait 3chwankuii £ en aer lvet £: Spannunc; be compensated ^ w ^ rend In the case of braking also: when the device is stopped, an approximately constant pad tension can be achieved because it is 3reas current and iasit the 31st moment

00 9819 / T0 4§ ^r

by the [thread tension / is influenced, ie-. is enlarged when. the thread tension increases and decreases if the thread becomes too loose

Finally, the Pig coiling machine. 8 discussed « The essential parts of this winding apparatus are the bobbin holder 64, the thread guide 65, the bearing 66 of the thread guide, an intermediate gear 67 and the drive motor 6.8. The drive motor again has an adapted characteristic, whereby via the gearbox 67 this characteristic is adapted to the required winding characteristic will. The ball 71, which is mounted in ball bearings 69, 70, is seated instead a bobbin, a thread guide 65. This thread guide contains a thread guide consisting of rollers 72, 73 and 74. The string 75 is fed to the shaft 71 through a central bore 76 and passed over the rollers 72, 73, 74.

The spool holder 64 is mounted on a carriage 77 and has an arm 78. A coil 82 can be plugged onto the arm 78. In the operating position shown, the bobbin 82 is inserted into the drum-shaped thread guide 65. The thread guide rotates while the bobbin is not rotating »From consideration of Fig. 8 it is clear that the thread (wire) is wound onto a spool 82 * During the winding process, the carriage 77 moves back and forth Hergenende movement in the direction of the P-eile 83, 84 from ,, Is the Coil 82 is wound, the carriage 77 is moved all the way to the left, removed the wound bobbin and attached an empty bobbin

009819/10 49

Claims (1)

Patent appeals. * ' 1 ο bobbin or winding apparatus for winding a bobbin with strand-like or thread-like grit, such as * wire, with an electric motor drive for the bobbin or the thread guide and means for keeping the thread tension constant, independent of the winding state, characterized in that the torque characteristic M_. = * f (* i _fflo t) (14, 15, 16) of the electric motor (2) designed as a capacitor motor with a solid rotor by choosing a capacitor of a certain capacity at least approximately the same or only changed by a fixed factor, like the one below Gate exposure ■ constant thread tension independent of the winding condition and the friction losses resulting in the bobbin characteristic « 2- »Apparatus according to claim 1, characterized in that the bobbin (4) or the thread guide is coupled directly to the electric motor (2) » ....... ■■ -. "■■ '". ".. 3 »An apparatus according to claim 1, characterized in that between the motor (2 ¹ O and coils (4) or Faöenfuhrerantrieb (71) comprises a fixed gear (23, 22; 67) is installed, preferably in the form of a gear or toothed belt transmission * 4 # apparatus according to one or more of the preceding claims, characterized in that several motors are used to jointly drive the bobbin or the thread guide by coupling the motor shafts or are coupled together by means of an intermediate gear (Fig «3 to 7). '' ■■ --...,. "; ,," 0008197104 t - ■ -18- 5 · Apparatus according to claim 4, gekennzeich.net by, a control device with two Heiais to switch off at least one of the several motors after reaching the full reel speed and to switch on at least one of the several motors when the device is shut down » 6 · Changing apparatus according to one or more of the vox-ner-related claims, characterized by an on-a-way nerscni & bbaren Carriage (77) arranged arm (78) for receiving eggs to be wrapped Coil (82) and a pin aligned on the arm driver (65) (Mg - 8). 7 apparatus according to one or more of the previous addresses, characterized by a dancer arm (5), the position of which depends on the thread tension, and a dancer arm driven, preferably rotatable potentiometer (> '6, 5?) for regulation constant voltage on the motor (2) regardless of fluctuations, aer Network voltage » 8 «Apparatus according to one or more of the preceding claims, characterized by a direct current source, preferably one Rectifier from which direct current irv is used for braking the motor is fed and one to switch off the direct current diehehdes time relay. 9. Apparatus according to one or both of Claims 7 and 8, characterized in that a jve X ^ ß ^ ßx ί7 ^0ί & dancer arm (5) is driven BAD ORIGIN _. Potentiometer (56, 57) for regulating the amount to be applied to the Ifötor (2) DC braking voltage is provided; -. "■ ■ 10. Apparatus according to claims 7 and 8, characterized in that that for controlling ier motor voltage and braking current a single one Potentiometer is used, its connection brackets by switching by means of hat switches according to the respective function be connected. 11. Apparatus according to one or more of the preceding claims, characterized by a time relay for switching one on and off Anlao-Kqndensators. 12. Claim according to one or several · OCE claims 1 to 6, gels enns egg without t by a zugleieh as Magasinwirkenden -Tänzerarm, äesäen S division of crer 3 voltage-en aa dependent iüt and at least one of Endsonalter Äbtassen ei-ner bestiiamten? - 3 division. 13 * apparatus according to claim 2, characterized in that the / Tänaerarm after, initiated S-low current braking at maximum filling äes Magasins the (DC braking by actuating the limit switch interrupts. 14 · Apparatus according to the claims. 12 and 15, marked dadurcli, S the dancer arm during start-up, the winder or during the : BAD ORIGINAL ' 009819/1049 -? ° - Operation when the magazine is full by pressing the Limit switch increases the drive torque by adding capacities and / or an additional motor. 15 · Apparatus according to claims 12 to 14, characterized in that the dancer arm at minimum fill ₆ - of the magazine, the
For example, as a result of accelerating too quickly when starting, the drive torque is achieved by actuating another limit switch
reduced by switching off capacities and / or another motor. 16. Apparatus üüci. one or more of the preceding claims, characterized in that to determine the spool shaft a 3remse, preferential prices a band or shoe brake provided ibt. _BA D
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