DE1710094A1 - Machine for winding a spool of thread - Google Patents

Description

Illo8

Lamautex Corporation, IValtham Massachusetts / USA

Machine for winding a spool of thread,

The invention relates to a machine for winding continuous threads and in particular an improved thread winder with a low inertia of the reciprocating Mechanism that enables the winding of continuous thread bobbins at high speeds.

In a conventional type of filament winding device, a transverse guide mechanism is used, which is a KurventroBuael having crossed grooves in which a boat-shaped driver moves, the one back and forth

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Moving forward movement is transferred to a lateral guide through which an inexorable thread runs. This conventional way the reciprocating mechanism has a high efficiency. ungsbedarf because of the high frictional forces that are caused by the 'high pressure angle of the cam drum grooves reciprocating carriers are generated. In order to keep the wear as low as possible, the reciprocating dogs and the grooves of the cam drum are lubricated at frequent intervals. However, this leads to contamination of the thread by oil splashes. In another conventional design for a winder, a chain-driven reciprocating mechanism is used »In this second design Constant oiling is also required to prevent wear, and it is difficult to obtain a To prevent contamination of the thread by the oil that is thrown off the chain by centrifugal force. the Both types of reciprocating mechanism described are designed for low speed operation limited in order to avoid abrasive wear of the interacting mechanical elements and furthermore reduce thread contamination from oil splashes to a minimum.

The main aim of the invention is to create a continuous thread

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Winder with a reciprocating mechanism, which operates satisfactorily at speeds much higher than those of the conventional mechanisms of the type mentioned, and no oil lubrication requires.

Another object of the invention is to provide

a continuous thread winding machine with a thread guide of " low inertia and a device for back and forth " Moving the guide around at a constant speed except for the liub reversal Stellön, which is a simple one soft harmonic movement is produced with a relatively low expenditure of effort.

Another object of the invention is to provide a reciprocating mechanism in which the length

of the to-and-fro movement stroke easily and quickly. J

s divides or * can be adjusted. - *

Another object of the invention is to provide a reciprocating mechanism of low inertia.

Another object of the invention is to provide a thread winding machine in which the bobbin holder and the

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Mechanism for moving the thread back and forth connected by a linkage, which is a certain Clearance between the reciprocating thread guide and the surface of the thread spool is maintained when the diameter of the coil increases.

Another object of the invention is to provide a machine for winding tapeless thread bobbins at thread speed. dities that are higher than 2,7oo m (3,000 yards) per minute.

Other objects and many of the advantages of the invention will become apparent from the following detailed description in conjunction with the accompanying drawings, namely show:

Fig. 1 is a schematic view looking towards down on the front of the winder;

Figure 2 is a top plan view, partly in section, of the reciprocating mechanism and its motor drive;

FIG. 3 is a front elevational view of that shown in FIG Reciprocating mechanism;

Fig. 4 is a sectional view taken along line 4-4 in Fig. 2;

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BATH ORIGINAL

5 shows a partial view in elevation on an enlarged scale one of the belts used to transport the reciprocating yarn guide, and one of the transport wheels on which the belt is arranged; and

FIG. 6 is a partial view from the side, seen in FIG

1 .

left to right. j

The "MscITTne ™ b" shown in FTg "." T - 6 sits on a frame, which is indicated generally at 2 and has two transversely extending frame parts 4 and 6 passing through two frame parts 8 and 8 extending in the longitudinal direction Io are interconnected. On the frame parts 8 and Io are arranged two bearing blocks, one of which is shown at 12 in Fig. 6 and in which the cylindrical Extensions 14 of a reel drive roller 16 are mounted. On one of these extensions 14 is a small disk 18 arranged, which carries an endless belt 2o. The latter is also placed around a large drive belt pulley 22, which is mounted on the output shaft of an AC motor 24 of constant speed, which is on the rear Is arranged at the end of the machine frame. When the motor 24 is switched on, it operates via the pulleys 18

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and 22 and the belt 2o a rotary drive of the drive roller 16 with a constant speed.

Furthermore, there are two inclined ones at the rear end of the frame

I.
Guide rods 26 and 28 attached. These guide bars

slidably carry a reciprocating mechanism, P indicated generally at 3o. The reciprocating Hefcrbe- W wegungsmechanismus comprises a carriage in the form of an elongated plate 32, at one end of a double-roll arrangement 34 (Fig. 2) is mounted. while a sliding block 36 is provided at its opposite end. The two rollers of the arrangement 34 rest on the opposite sides of the guide rod 26. The sliding block 36 has a bore in which a bushing 38 is seated, the size of which is so dimensioned that it can receive the guide rod 28 with a sliding fit.

On the opposite side of the plate 32 are two of each other spaced disc carriers 4o and 42 arranged (see FIGS. 2 and 3), the former, the following is referred to as a "loose disk carrier", has two spaced apart parts 44 and 46, which two loose disk axles 5o and 52 can be rotated. The neighboring Ends of the axles 50 and 52 are provided with the same loose disks, which are generally denoted by 54 and 56

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are. Each of these disks has a single side wall 58 and a frustoconical belt support hub 6o formed on its periphery with a series of teeth 62 equidistant from one another (see FIG. 5). The second pulley carrier 42, hereinafter referred to as "drive pulley carrier ¹ ", has two spaced apart parts 66 and 68 which serve for the rotatable mounting of two drive pulley shafts 70 and 72. The adjacent ends of these shafts carry drive pulleys 74 and 76 which are identical in design to the loose pulleys 54 and 56. The opposite ends of the shafts 7o and 72 are provided with conventional toothed timing pulleys 78 and 8o which carry timing belts 82 and 84. The latter run over large timing pulleys 86 and 88, of which iie are driven, and which are arranged on the opposite ends of the output shaft 9o of a single-phase motor 92 with an auxiliary start-up phase. This motor is fixed to the plate 32 so that it is movable therewith.

The loose pulley 54 and the drive pulley 74 carry a transverse belt 94. A second identical transverse belt 96 is carried by the loose pulley 56 and the drive pulley 76. These straps, which extend parallel to one another, are light weight straps made of polyester reinforced polyurethane with a series of lugs 98 for engaging the fences b1

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.the discs on which they are arranged. In the preferred embodiment of the invention, the lugs 98 are 2.726 mm (0.0816 ") pitch while the teeth 62 have a 5.0 mm (0.200") pitch. This combination of lugs with finer The pitch on the belt and teeth with a coarse pitch on the drive pulleys 74 and 76 P enable one or the other of the transverse belts to shift ψ on its drive pulley by the amount necessary to adjust the vertical position of the transverse guide pin (the following is described) to the two cross belts, thereby ensuring low friction alignment of the bushings of the reciprocating guide and the guide rails on which they move. The thread guide and its guide rails are described below.

As can also be seen from FIGS. 2 and 3, the reciprocating mechanism further comprises two parallel ones in vertical direction Spaced, transverse guide rails Io2 and Io4, which have a circular cross-section, to the two disc carriers 4o and 42 are attached and extend between them. These rails are used to slidable mounting of a cross-thread guide assembly of light weight, which is indicated generally at I06. These Cross guide arrangement has a plastic body I06 of

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light weight, which is preferably made of nylon or a resin made by DuPont commercially available under the ZYTEL trademark, but can be made on another resin of light weight and high strength as best from Fig. 4 ergil) t, the upper end of the body Io6 has a bore, i! is provided with a cylindrical socket Io8 which λ

the guide rail Io2 has a sliding fit. That under ^ end

de :! Body Io7 is formed with a semicircular groove, in which there is a semi-cylindrical socket Ho, soft au- £ - ~ 4e - * - Fttimmg »scltie-ne 1ö4 s-itst» These sockets are made of a plastic material that is impregnated with a ^ r tetrafluoroethylene compound. Tetrafluoroethylene ·· Compounds, e.g. Teflon brand polymer, which is marketed by DuPont, are slippery materials and keep the friction extremely low, so that no * lubrication is required. Typical plastics, which are impregnated with a pqjyfluoräthylejimaterial »are "Glacier DU brand material", which is supplied by Garlock Mfg.Co., and "Delrin AF brand material" which is sold by DuPont.

The thread transverse guide body Io7 is also provided with a vertical one Slit 112 is formed in which a bolt 114 is slidably disposed ·. The opposite ends of this Bolts protrude beyond the sides of the guide body Io7

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and are attached to cross straps 94 and 96. The latter are each formed with a single raised part 11b, the has an opening for the bolt 114. At the top of the Body Io7 is a thread guide in the form of an aluminum oxide insert 118 attached. This insert has a V-shaped groove 12o, which is an endless strand of thread ^ receives and leads.

The guide arrangement laö is used to put the thread on the To guide cylinder 122, which is detachably arranged on a spindle or spool holder 124, (see Fig. IJ. The spindle is cantilevered and one of its ends 125 (Fig. 6) is rotatably mounted in a bearing unit 126, which is attached to the upper end of a swing arm 128. The lower end of the arm 128 has two lateral Approaches 13o provided, which in two bearing blocks

' 132 are stored, which are attached to the machine frame.

* The swing arm 128 not only serves to support the spindle 124, but also carries a braking member at its upper end 133 with a handle part 136 and a braking surface 138. The braking member is attached to the bearing unit 126 in such a way that that its center of gravity is so that its handle part hangs down in the manner shown in FIG. The braking surface 138 is made of a suitable material, for example impregnated asbestos laminate, and is arranged so that

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that it rests on the spindle X24 when the drive link is pivoted by pulling on its handle part 136.

The swing arm also serves to regulate the movement of the reciprocating mechanism along the inclined guide rods 26 and 28 a swivel arm 144 which is attached to a shaft 146 which is mounted rotatably by two bearing blocks 14 attached to the machine frame. The wave a

148 carries a second pivot arm 15o, which is elongated with two Lever arms 152 (only one of which is visible in Fig. 6) is articulated. These lever arms 152 are hingedly attached to a tab 154 on the slide block 36. The linkage described above couples the back and forth Reciprocating mechanism and spindle 124 so that the j

Position of the former on the guide rods 26 and 23 a; Function of the distance between the spindle and the drive roller 16 is. When the bobbin increases to the spindle 124 in its diameter and pushes the spindle of the drive roller 16, the reciprocating mechanism is moved on the guide bars 26 and 28 upward. The aforementioned linkage also causes the reciprocating mechanism to fall down onto the guide rods 26 and 28 as the spindle moves back toward the drive roller 16.

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ORIGINAL INSPECTED

mos

away,

As an optional feature of the invention, an interrupter circuit 158 may also be provided which is connected between the motor 92 and the alternating current network 160 to which it is connected. This circuit breaker \ preferably consists of a switching transistor, which periodically interrupts the current flow to the motor for a short interval. This switching takes place once for each complete cycle of to and fro movement of the thread transverse guide arrangement I06 and can either be more frequent, for example several times during each half cycle, or less frequently, for example once for several cycles. The back and forth movement cycle of the thread guide arrangement comprises two strokes, namely one in each direction. Although the interrupter circuit can be designed so that it operates aperiodically, an approximately periodic mode of operation such that the thread transverse guide is given a cyclical speed profile is preferable.

The operation of the machine described above is described below. When the machine is at rest and the cylinder 122 is removed, the spindle 124 rests against the drive roller and lo sicJi the reciprocating mechanism resides in his

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lowest position on the guide rods 26 and 28, To carry out a winding or winding process, a cylinder 122 is pushed onto the spindle and a thread rod 162 is inserted into the groove 12o and then wound around the cylinder in such a way that the spindle of Hand is turned. Thereafter, the two motors are set in motion 24 and 92 · The motor 24 drives the roller 16 for rotation f (.ii * clockwise, as viewed in Fig. 6}. The role IQ drives (ihierseits the spindle 124 and the cylinder 122 as a result the friction system with the thread wrapped around the cylinder

at. At the same time, the motor SZ drives the pulleys 74 and and the latter in turn drives the two transverse belts 94 and 96. The belts are only driven in one direction ₍ and in turn run around the drive pulleys 7 | 4 and 76 and around the loose pulleys 54 and 56. The direction of the tapering of the frustoconical hubs of the transverse pulleys means that the belts are constantly closed The pulley walls SS are pressed so that they run smoothly, but the contact pressure of the belts on the pulley walls is rather low, so that belt wear and the drive power required to move the belts are kept to a minimum and 96 move the cross-thread guide along its guide rails. As can be seen, the guide rails extend beyond the transverse pulleys so that the

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Bolt 114 can follow the belt as it moves around the pulleys. When moving around the pulleys, bolt 114 moves in one vertical direction in slot 112 when its links to the cross belts move around drive pulleys 74 and 70, and in the opposite vertical direction when those links move around Move loose disks 54 and 56 around. P This effect has the result that the strand traverse guide arrangement $ W ihTe movement reverses direction each time when di0 move the aforementioned pin connections around the transverse belt drive and pulleys, changing their speed during each such reversal according to a simple harmonic movement. The traverse speed is determined by the speed of the motor 92 and the ratio of the drive motor pulleys 86 and 88 and the driven traverse pulleys 74 and 76. In the absence of the interrupter circuit 158, the <£ arn-> traverse guide moves at a constant speed while reversing its stroke. During the traverse movement, the thread 162 turns around the cylinder in the form of a helix to form a bobbin or thread roll 164 In the preferred embodiment, the transverse movement speed is adjusted in relation to the peripheral speed of the bobbin to be wound so that a thread helix angle of about 6 °, for example for a thread of 3o - 4o denier, which is wound with low tension, up to about 16 ° at

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heavy yarns such as carpet yarns. This angle gives stability in handling and shipping for the finished thread or thread reel and ensures a usable thread supply when unwinding at high speeds. When a thread or yarn roll has been fully wound, the motors are switched off and the spindle is brought to a standstill by the fact that on | Brake handle is pulled. The operation of the brake hand | griffes has the consequence that the coil moves out of contact with the drive roller Ib, whereupon it zuira Standstill is needed that the * holding force on the spindle is exerted by the braking surface 138.

It should be mentioned here that when winding a thread or a yarn with a constant pitch angle the "Ribbons" tend to appear when the diameter the coil has reached a certain size with reference to the transverse motion distance. This inclination will switched off by the fact that the transverse movement speed is changed periodically. This is done by the breaker circuit 158 reached, which by an intermittent interruption of the input power to the motor 92 of the transverse guide assembly communicates a changing speed profile. This cyclical change in speed is achieved smoothly and without the transverse movement mechanism

is exposed to disturbing forces.

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The total input power required to drive the traverse mechanism is required is due to its low inertia and its self-lubricating properties quite small.

It should be mentioned here that in order to achieve a high transverse fc speed of movement at low input power it is essential that the sockets I08 and Ho of the transverse guide arrangement are constantly in almost perfect alignment with the guide rails Io2 and Io4 »This requires again that the cross guide drive pin 114 is held perpendicular to the two cross belts. This is done through the Combination of noses 98 with fine pitch on the cross belt and the teeth 62 from graber pitch on the cross belt pulleys achieved. As shown in Figure 5, this combination results in imperfect engagement between the noses and teeth, #as has the consequence that, if the drive pin has the inclination, 'leave his exactly mustard-made position Eu, the one or the other of the cross belts shifts on its pulleys by the amount necessary to make the vertical one To restore position quickly.

The design described above has many advantages in addition to the already mentioned achieved «Once the transverse movement mechanism is very reliable and of long service life due to its low inertia and

~ ¹⁶ "ORIGINAL INSPECTED

its self-lubricating properties and it can F & denbzv. Spools of thread are wound with thread or thread speeds that are higher than 27oo m (3ooo yards) in the Minute lie. Another benefit of tfarin is that by eliminating the need for lubrication of the tfarin Cross-movement mechanism an oil pollution of the thread

or yarn is avoided. The linkage between the spool spindle and the transverse movement mechanism enables d \ e maintain a constant or programmiertea play between the transverse guide arrangement and the coil surface so that a substantially constant angle between the filament and the bobbin surface is. The programmed play also determines the formation of the sides of the spool. Another advantage is that the length of the transverse stroke can easily be changed by changing the position of the pulley carriers on the plate 32 and using transverse belts of different lengths,

The invention is of course not limited to the illustrated and described embodiments, but can experience various changes within their framework.

Claims i ORIGINAL INSPECTED

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Claims (1)

lHo8 Claims ™ 1. A machine for winding a thread or yarn package, marked W is distinguished by a frame, a bobbin drive roller which is rotatably supported by this frame, means for driving the bobbin drive roller, a swing arm which is mounted rockably to the frame, a spindle for receiving a cylinder on which the bobbin is to be formed, a device on the swing arm for the rotatable mounting of the spindle parallel to the bobbin drive roller, which swing arm normally adjusts the spindle so that a cylinder arranged on this rests against the bobbin drive roller and is driven by it , a thread traverse mechanism and means attached to the frame and supporting the traverse mechanism for rectilinear movement along a predetermined path in the vicinity of the spindle, which comprises (j notch moving mechanism
CaJ first and second belts, (b) first and second pairs of pulleys for supporting the first and second belts in FIG 109847/0412 .: J ι parallel arrangement to each other, a motor, (.dj a device that runs between the engine and the first and possibly the pair of pulleys is coupled to the belts mentioned in the same | eheη direction and at the same speed | to drive (.ej a guide rail assembly that runs between the Belt is arranged and extends parallel to these, (f) a traverse guide designed to move along the mentioned guide rail arrangement is mounted, which lateral guide means for guiding an endless Rope of thread put a cylinder on the spindle in the Way that the thread is wrapped around the cylinder while this is through the bobbin drive roller ' is driven to rotate, and (gj a device which connects the cross guide to the aforementioned belts in such a way that, when the belt moves in an endless path around the first and second pair of pulleys, the thread cross guide moves back and forth on the guide rail arrangement with one type of movement, by a simple harmonic movement at the end of the one -ig- 109847/0412 III08 Stroke and at the beginning of the next stroke I i is so that a thread or yarn which $ s over d ^ n Lateral guide a cylinder arranged on the spindle is fed in spiral layers on the cylinder wound to form a thread or thread spool ψ will, j ►: ι. 2. Machine according to claim 1, characterized by a device for the periodic interruption of the operation of the motor to give the thread guide a changing G ^ to communicate the speed curve by which jier The thread's pitch angle is changed when it is wound onto the cylinder, 3 «machine according to claim 1, characterized in that the Guide rail arrangement is formed by two parallel spaced apart rails and the Yarn traverse guide has a body with sockets which can slide along said rails, said one being said Body widening a slit and the aforementioned execution, through which the lateral leader is connected to the straps, is formed by a bolt which is arranged in the mentioned slot and connected to the belt, -20-109847/0412 ORIGINAL INSPECTED 17 1009 A 4, machine according to claim l, characterized in that daft the guide rail arrangement comprises two parallel rails spaced apart from one another and furthermore that first and second pairs of pulleys j. «- # ine Has drive pulley with a number of teeth at regular intervals and also the belt Control belts are which, with a labor of noses * are provided at regular intervals between the Teeth of the drive disks engaging gn. ^ .WjQkci die Teilu! Og_.de.r Noses finer than the pitch of the teeth mentioned, so that one of the belts mentioned is related to the other Belt can slip to an alignment with lower To maintain friction of the yarn guide on the guide rail rods. 5. Mascftine according to claim 1, characterized by a Means for moving the traverse mechanism in a given direction along the particular one mentioned Track when the diameter of the wound bobbin increases " 6. Machine according to claim 5, characterized in that the means for moving the lateral movement mechanism in dtr erwlhnten given direction through a mechanical " ²¹ " 109847/0412 ORIGINAL INSPECTED Zl Illo8 Linkage between the transverse movement mechanism undi the mentioned swing arm is formed. 7. Machine according to claim 6, characterized in that «let the linkage moves the transverse movement mechanism at a speed that is sufficient eil) programmed fc Play between the yarn cross guide and the surface of the wound coil. 8. Machine according to claim 1, characterized in that the straps are made of a lightweight synthetic material. 9, machine according to claim 8, characterized in that 4ae mentioned belt made of a polyester reinforced part Polyurethane are made. Io, machine according to claim 1, characterized in that the thread transverse guide is made of plastic and Has self-lubricating bushes in sliding contact with the guide rails. -22- ¹ ° ⁹⁸ * "° <U, _ß , _N AL INSPECTED 11 «Machine according to claim 1, characterized in that the swing arm is provided with a handle which it can be pulled in one direction, thereby moving the spindle away from the spool drive roller. 12 »Machine according to claim 11, characterized in that * the aforementioned hand jointed to the swing arm is connected and a braking member is attached to the handle; which is arranged so that it is on the spindle rests and this brakes when the handle is pivoted with respect to the swing arm. 13. Machine according to claim 12, characterized in that the pivot axis of said handle is in the fencing Extends angle to the pivot axis of the swing arm, 14. Machine according to claim 1, characterized in that the drive roller and the spindle extend horizontally and the means for supporting the transverse movement mechanism is formed by two parallel, spaced guide bars that are arranged in a common gendgten plane, which is parallel to the drive roller and the spindle - ₂₃ . 109847/0412 ORIGINAL INSPECTED extends. 15. Machine according to claim 14, characterized in that the transverse movement mechanism can be lifted off the two guide rods 16. Machine according to claim I _9, characterized in that the device for driving the bobbin drive roller is formed by a second motor and a torque transmission element which connects the output shaft of the motor to the bobbin drive roller » 17. Machine according to claim 16, characterized by tine device ^ for brief and periodic interruption of the J & driebi d§ & jtweitea engine. ._,. 18. Transverse movement mechanism for a thread or yarn winding machine, characterized by a first and a second cross pulley, a first and a second pair of pulleys that set the "up" and the second rows parallel to each other and in Distance from each other, a motor, a device » -24- 109847/0412 ORIGINAL INSPECTED the each of each of the ^p aare mentioned is coupled between the motor and the respective disks, and serves to drive the said cross-belt in the same direction and at the same speed, zw $ i guide rails from one another located at a distance that are angeordent between the transverse belt and $ I extend parallel to these, a thread or thread traverse guide which is arranged for movement along the said rails, and a device which connects the thread traverse guide to the cross belt, so that when the cross belts in endless paths around the mentioned Move pulleys around, the cross thread guide moves back and forth on the guide rails with a type of movement that is characterized by a simple harmonic movement with each reversal of direction,
L .. 19 «Mechanism according to claim 18, characterized in that that the cross-threading guide through a body with a elongated slot is formed and the last-mentioned connecting device comprises a bolt, which in this slot is slidably disposed and its opposite ends connected to the transverse straps are. -25- 1QÖU7 / IK12 ORIGINAL 11108 2o. Mechanism according to claim 19, characterized in that that the cross belts are provided with a series of identical lugs and the corresponding pulleys Have hubs which are formed with a series of identical teeth with which the aforementioned noses come into engagement, the pitch of the noses being different from the pitch of the teeth, so that one of the mentioned Belts can slip with respect to the other - the alignment of the animal handler on the Maintain low friction guide rails. 21. Mechanism according to claim 18, characterized in that. that each pulley has a frustoconical hub and a single side wall. " ^26τ 109847/04 1 2 Main Proposed Claim; Machine for winding a thread or thread bobbin with a frame, a bobbin drive roller, which by this frame is rotatably mounted, a device for ( the drive of the bobbin drive roller, a spindle for the take-up of the cylinder "on-de" the bobbin is to be formed, a thread transverse movement mechanism bus and a device which is provided on the frame and serves to to mount the transverse movement mechanism for rectilinear movement along a specific path adjacent to the spindle, characterized by a swing arm which is pivotably mounted on the frame, a device on the swing, arm for rotatable bearing <of the spindle parallel to the spool drive roller, which swing arm normally adjusts the spindle so that a cylinder arranged on it rests against the spool drive roller and is driven by this, which transverse movement mechanism includes (aj a first and a second belt, (bj a first and a second pair of pulleys parallel to the support of the first and second belt 109847/0412 to each other and at a distance from each other, (cj a motor, (dj an execution between the engine and the first and second pairs of pulleys are coupled to the belts in the same direction and propel at the same speed CeJ a guide rail arrangement, the civilian den Belt is arranged and extends parallel to these, {£) a thread transverse guide which is arranged for movement along the guide rail arrangement, which transverse guide has an element for guiding an endless strand of thread to a cylinder on the spindle in such a way that? the thread is wound around the cylinder as it is rotated by the bobbin drive roller and (g) a device which connects the cross guide with the belt so connects, that when the latter are in an endless path around the first and the second belt pulley}> aar move in, the cross thread guide open the guide rail assembly moves back and forth with a type of movement which is by a simple harmonious movement is marked at the linde of one stroke and at the beginning of the next stroke, so daP 109847/0412 a thread or strand of yarn which is fed via the transverse guide to a cylinder arranged on the spindle is wound in ^ spiral layers on the cylinder to form a thread or thread spool will. -3- 109847/04 1 2 ORIGINAL INSPECTED Lee r side