DE2108038A1 - Device for winding a thread of thread - Google Patents

Description

Device for winding a thread of thread

The invention relates to a device for winding a yarn thread.

The term "yarn package" used in the following description refers to a body of yarn or other thread material which is wound up in such a way that it can easily be moved from one place to another is «The term" package "or" body "refers to the actual mass of yarn which forms the yarn package. The term "tail" means a portion of the thread of yarn leading from an end turn of the package going off. The term "yarn" is used in a general sense in s "and is intended to refer to all thread-like forms Materials, both textile and other types.

In short, the invention relates to improvements in a winding machine with a rotatable spindle on which a yarn thread for the production of a yarn package is guided back and forth or traversed. According to the invention, the spindle is initially set in rotation at a constant, predetermined speed and the yarn

109835/1164 *

POST CENTER: 8 Munich 90, Eduard-Schmid-Str. 2

thread wound up on the spindle by engaging with a practically stationary, provided on the spindle and rotates with this clamping piece is moved. While if the yarn thread rotates with the clamping piece, its free end is cut off, whereupon a run-out end of the yarn thread if desired, automatically wound onto the spindle and the yarn thread back and forth in the axial direction along the spindle is brought here, while a package of yarn is wound up in the usual way for the production of a yarn package. When the thread of thread has been detected by the spindle, its speed is changed and controlled in a conventional, normal manner.

The object of the invention is therefore primarily the creation a novel and improved device for handling a yarn thread while winding a rotating one Spindle and, if desired, for the automatic formation of a run-out end on the spindle before winding a package to this.

In the following, preferred embodiments of the invention are explained in more detail with reference to the drawings. Show it:

1 shows a schematic, perspective partial view of a section of a winding machine according to a preferred one Embodiment of the invention, the parts of which are in a position in preparation for the Rinsing a spindle,

FIG. 2 is a schematic, perspective partial view, on an enlarged scale, of a portion of FIG Device according to 3g. 1 at the point in time at which the spindle picks up the yarn when rinsing,

10983B / 1168

210803a

Fig. 3 shows a Pig. 2 similar view showing the spindle illustrated after a lead-out end has been formed and a one on the spindle Begins to form yarn package forming package,

4 shows a schematic partial side view of a modified one Embodiment of the actuating device according to FIGS. 1 to 3,

FIGS. 5 and 6 are schematic, on an enlarged scale Partial sections taken along lines 5-5 and 6-6 in Figures 1 and 2, respectively, showing successive stages illustrate actuation of a twine alignment member

7 is a view similar to FIGS. 5 and 6, but which the yarn alignment member as it moves between the positions of FIGS. 2 and 3 in FIG shows an intermediate position,

8 shows a schematic on an enlarged scale Section along the line 8-8 in Fig. 1,

9 shows a circuit diagram of a pneumatic control system for the actuating device according to FIGS. 1 to 3 and

10 shows a circuit diagram simplified for explanatory purposes an electrical control circuit for the device according to the invention.

109835/1158

The one in Pig. 1 only partially shown winder 10 has a base 12 with a housing 14 for controls, with a housing 16 for a traversing apparatus 18 and with a bearing (not shown) for a rotatable spindle 20. A winding tube or winding core 22 is releasably clamped on the spindle 20 so that it can rotate with it and a yarn thread 24 can be wound on it, while it is axially to the spindle by a thread guide 26 of the traversing apparatus 18 shown in dashed lines in FIG 20 and to the winding core 22 is guided back and forth. During winding onto the winding core 22, the yarn thread 24 comes into contact with a roller bracket 28 mounted on the base. The yarn thread 24 is supplied to the spindle 20 by conventional godets 50, which is mounted on an opposite of the winding machine 10 stationary plate 3 ² äfcid and are added in conventional manner at a predetermined speed in rotation, whereby known to the skilled worker regulated the feed rate of the yarn will.

According to FIG. 1, a mounting bracket 34 attached with its main part 36 in a manner not shown behind the Sptidel 20 on the base 12 has a suction nozzle holder 38 in the form of a flange 40 which is arranged parallel to the main part J> 6 and is supported by a Leg 42 is held at a distance from the main part 36. A cutout provided in the upper edge of the suction nozzle holder 38 serves to detachably receive and hold a suction nozzle 44 which, in the embodiment shown, is connected to pressure and vacuum hoses 46.

In the initial stage of the winding process, the suction nozzle 44 is switched off their holder 38 removed and the free end of the thread inserted into the mouthpiece of the suction nozzle 44, whereupon

109835/1158

the godets JO can be set in rotation in order to feed the yarn thread 24 picked up and discharged by the suction nozzle 44 to the winding core 22. The yarn thread 24 is guided by hand by means of the suction nozzle 44 over corresponding guides, which in turn include a guide wheel 48 mounted on an arm protruding from the holder 34, a further thread guide (not shown) arranged behind the spindle 20 and a compensation wheel 50 include, which is mounted on the free end of a compensating arm 52, which in turn is rotatably mounted in the housing 14 receiving the controls in a manner not shown. The wheel 50 is centered essentially axially with respect to the winding core 22. The thread thread 24 runs from the compensation wheel 50 to a thread holder 54 mounted on the housing 16, whereupon it is inserted into a slot 56 provided in a holding finger 58. Subsequently, the thread 24 is guided to a thread scissors 60 mounted on the holder J4 and inserted into a slot 62 provided in the free end of the body 64 of the thread scissors 60, whereupon the suction nozzle 44 together with the thread 24 contained in it is inserted into its holder Jß> will.

The twine holder 54 / is mounted on the base 12 by means of a mounting bracket 66 , which is rigidly attached to a part of the housing 16 with the aid of screws 68, for example. A U-shaped slide 70 is guided telescopically with its two legs 72 in bores provided in the outer end of the holder 66 , the free end of one leg 72 being received by a cuff "Jk and thus fixed to the free end of the piston rod 76 of a double-acting pneumatic cylinder 78, which in turn is attached to the housing 16 by means of a holder 80. The yarn holding finger 58 has a U-shaped lower end 82 according to FIGS.

109835/1158

-D-

which is firmly clamped to the legs 72 of the slide 70 by means of a nut and a screw 84. A center piece 86 projects upwards from the U-shaped end 82 of the holding finger 58 and is provided on its upper side with an inverted U-shaped section, in the base 88 of which the slot 56 receiving the thread thread 24 is formed. When in Fig. 1 ⁿ Anspul preparation position shown located winder of the yarn-anchoring finger 58 has its largest distance from a provided at the free end of the spindle 20 cone 90, and upon actuation of the cylinder 78 it is shown in FIG. 2 to the right and in shifted the proximity of the spindle cone 90, as will be explained in more detail later.

The body 64 of the thread scissors 60 (FIGS. 1 and 8) is formed by a horizontal flange 91 which extends from a vertical flange 92 with a horizontal elongated hole 94, two of which are screwed into an arm 98 (FIG. 8) of the holder 34 Screws 96 receives, so that the thread scissors body 64 is mounted displaceably substantially horizontally towards the spindle cone 90 and away from it. The arm 98 is held parallel at a distance from the main part 36 of the holder j54 by a leg 100 (FIG. 8). In FIGS. 1 to 3, the thread scissors 60 are located near the spindle cone 90, where they are fastened by a tension spring 102 (FIG. 8), one end of which is attached to a rod 104 extending from the vertical flange 92 and the other end of which is in the leg 100 of the bracket J4 is anchored, is resiliently urged into this position. To retract the thread scissors body 64, a handle IO6 attached to the vertical flange 92 of the thread scissors 60 in accordance with FIG. by a torsion spring, not visible in the drawings, into one in the horizontal flange 91 of the body

- 7 -109835 / 1 158

«Ad

provided opening 116 is forced into it. According to Fig. 8 is a cutting blade 118 by means of a U-shaped clamp piece 120 detachably attached to the vertical paddock 92. A cutting edge 122 of the cutting blade 118 engages over a cutting slot 124 in the lower edge of the vertical flange below the slot 62 receiving the thread 24 is formed in the horizontal flange 91.

To flush the spindle 20, an actuation button 126 (Fig. 9) of a vented pneumatic three-way valve is pressed, whereupon air is admitted to an air control slide 1JO of a vented four-way valve 132, which acts on the head end of the cylinder 78, see above that this retracts its piston rod J6 and thereby moves the slide 70 and the holding finger ^ S to the right on the spindle cone 90. The mode of operation of the pneumatic control is explained in greater detail later with reference to FIG. 9.

When the yarn holding finger 58 moves towards the spindle cone 90, the yarn thread 24 is passed through the yarn cutting slot 124 and against an annular outer surface 134 (FIGS. 1 to 3) of a cylindrical winding flange 136 of the spindle cone 90 pushed, the spindle 20, as indicated by the arrow I38, rotates clockwise. The yarn thread 24 now jumps into an offset slot 14o in the winding-on flange I36 and is gripped between a back-turned annular surface 142 of the spindle cone 90 and the one free end of a resilient yarn clamping piece 144, the other end of which, for example, by means of screws 146 is attached to the ring surface 142. When the twine thread 24 is grasped by the twine clamping piece 144, it is withdrawn from the holding slide 56, wrapped around the cutting edge of the thread scissors 60 and severed - _} the severed end is removed by the suction nozzle 44, which is now closed " .ereen can. During the cutting, the

109 835/1 1 S8 '" ⁸ ~

8AD

Twine thread 24 even tighter under the twine clamping piece 144 jammed, whereupon it begins to be wound onto the winding core 22.

When the yarn thread 24 is supplied to the clamping piece 144, the spindle 20 rotates at a predetermined constant speed, which is slightly above their normal winding speed. The spindle speed is generally 5000 U / min and can be preset so that, for example, a thread speed of about 2350 m / min when rinsing and then a maximum winding speed of about 2 ^ 20 m / min delivers, in a manner to be explained in more detail with reference to FIG. 10 by the electrical control in the Moment is initiated in which the clamping piece 144 picks up the thread 24. The normal winding speed is varied by the control system according to FIG. 10 in a manner known to the person skilled in the art in such a way that in the incoming yarn thread a practically constant tension is maintained.

When the spindle 20 rotates at normal speed or approaches this speed, a run-out end of the yarn thread 24 is wound onto the winding core 22 as shown in FIG. For this purpose a yarn alignment device 150 (FIGS. 1 to 3 and 5 to 75 is provided which, according to FIG. 5 to 7, has a mounting bracket 152 with a flange 154 in which a horizontal elongated hole 156 is provided which receives screw I58 screwed into the housing 16, so that the alignment device I50 can be adjusted axially to the spindle 20 and to the winding core 22. The holder 152 has an essentially horizontal flange I60 on which a yarn alignment device 1-52 is attached by means of a pivot pin 164 is hinged. Referring to FIG. Z is about the pivot pin 164, a torsion spring cie herun'.e-166, rt, the ends of which ar "162 New York Convention Avsrichtfinger

109835/1 158

are attached to the bracket 154 so that they are the alignment finger 162 resiliently urges clockwise from the positions according to FIGS. 6 and 7 into the position according to FIG. When the thread holding finger 58 holds the thread 24 against the winding flange I36 of the spindle 20 is displaced, the yarn thread is releasable held in place by alignment finger 162 (Fig. 6) and the latter is pivoted counterclockwise until an inclined edge I67 of the alignment finger 162 according to FIG. 6 abuts the holding finger 58, so that the thread 24 except Contact with the traversing thread guide 26 is kept and is wound onto a limited section of the winding core 22, to form the lead-out end 148. The run-out end 148 is wound onto the winding core 22 until the holding finger 58 shifted from the position according to FIG. 6 to the left and into the position according to FIGS. 1 and 5, whereupon the alignment

162
finger is released according to FIG. 7 and pivoted counterclockwise by the thread 24. Here, the yarn thread 24 is released from the alignment finger and is caught in the usual manner by the thread guide 26 in order to build up a thread body 168 (FIG. 5) on the winding core 22, which is preferably spaced from the turns forming the outlet end 148.

In Fig. 10 is an electric control circuit for switching from the predetermined constant speed to the normal Operating winding speed shown. When the yarn is picked up by the yarn clamping piece 144 (Fig. 1) on the spindle cone 90, which rotates at the predetermined speed, which exceeds the normal winding speed, becomes the tension in the yarn thread 24 increases because the feed speed of the yarn is constant jsb, and as mentioned, is regulated by the godets 50. The one of this resulting increase in thread tension lets the compensating wheel 50 and arm 52 abruptly move a larger distance upwards, pivot than in normal winding operation, so that a within

- 10 -

10 9 8 3 5/1158

of the control housing 14 on the compensating arm 52 attached finger 170 (Pig. 1) comes into contact with the actuator 172 of a switch Ift (FIGS. 1 and 10) and closes the latter, whereby the drive motor I76 (FIG. 10) for the Spindle 20 comes under the control of the compensating arm 52 together with associated equipment, as is known for conventional winding machines. In short, when the diameter of the yarn package I68 on the winding core 22 increases, the speed of rotation of the spindle 20 is reduced in accordance with the feed speed of the yarn thread 24 determined by the godets JO. ·

When the winding machine is started up, the compensation arm 52 is raised and supported by a bracket I78 which is pivotally attached to an arm 180 attached to the housing 14 so that the compensator arm his finger 170 (Fig. 1) lifts from an actuating member 182 of a main control switch 184 provided in the housing 14 and closes the latter. the Spindle speed can be varied by adjusting a manually adjustable potentiometer 186, which has a Amplifier I88 and a motor controller I90 on the spindle drive motor 176 acts. This allows the mentioned Set the desired, constant, predetermined speed of the spindle for the winding process. When the thread 24 passes through the Yarn clamping piece 144 of the spindle 20 has been detected and the compensating arm 52 moves upwards and the switch 174 closes, a relay R is connected to voltage, whose normally open contact 1R closes and creates a hold circuit, which is necessary because the compensation arm 52 is in its normal position falls, in which the switch 174 will open can. When the relay R picks up, its normally closed contact 2R opens at the same time, whereby the potentiometer I86 from the Circuit is switched off and its normally open contact 3R closes, which instead of the potentiometer I86 an automatic speed controller 192 in the circuit of the

109835/1158 " ¹¹ "

Amplifier 188 and motor controller 190 is turned on. The compensation arm 52 then takes over the control of the Engine speed, which, as mentioned, is slightly higher than the specific speed vorbe. The automatic speed controller 192 can be of any known, commercially available type.

9 shows a pneumatic circuit for regulating or controlling the mode of operation of the twine holder actuating cylinder 78. The manually operable three-way valve 128 receives the control air via a throttle I94 which is located in a branch I96 of an air feed line I98. When the spindle 20 is to be wound up, the valve 128 is opened by pressing the actuation button 126, with control air flowing via a line 200 to the air control slide I50 of the vented four-way valve 152, which is then moved into a position in which the Line pressure from the main supply line 198 is switched through a branch line 202 and hose 204 (FIGS. 1 through 10) to the head of the cylinder 78. At the same time, the rear end of the cylinder is vented via a hose 206 and the valve 1J2, so that the cylinder retracts its piston rod 76 and the yarn thread 2k is wound onto the spindle 20 in the manner described. Even if the three-way valve 128 is held in its open position by hand, the air control slide I30, which fulfills a timer function, automatically discharges the control air after a predetermined period of time, so that the four-way valve 1 ^ 2 is the head end of the cylinder I78 is again vented via the hose 204 and the rear end of the cylinder 78 is again subjected to line pressure via the hose 206, whereupon the cylinder 78 extends its piston rod 76 and the twine holding finger 58 is in a 3-line position according to FIGS. 1 and 3 returns. The winding-up of the run-out end is thus finished and the cross guide can be used. ^! ur_. _: "; zv. ^T. traversing of the thread thread on the winding core 22 to :. ¹ :": i1un _t : of the thread body s 1 *: 3 begin.

10 9 8 3 5/1158

BATH ORIGINAL

In Pig. 4 shows a modified actuating device for the twine holder 208, designated in this case by 208. The twine holder 208 is mounted on a slide 210 of essentially the same type as previously described, which is shown in FIG is essentially mounted in a previously described manner in a mounting bracket 212 attached to the housing 16. The base of the U-shaped slide 210 is provided with a button 214 that allows manual actuation. On one leg a compression spring 218 is telescopically pushed onto the slide 210, the one pushed onto the free end of this leg fc and, for example, by means of a screw 222 attached to the housing cuff 220 and an adjustable cuff 224 is set, which telescopes on a The inner section of the leg is pushed on and fixed in the set position, for example by means of an adjusting screw 226 iä :. When the spindle 20 is to be wound up, the button is 214 pressed against a stop pin 216 provided on the holder 212, the compression spring 218 being compressed, so that it returns the twine holding finger 58 to the original position when the button 214 is released.

Although the invention above with reference to preferred embodiments and ones shown, on a special field of application is ψ, and is described, the skilled person understood that numerous changes and modifications are possible without departing from the scope and spirit of the invention.

109835/1158

Claims (1)

Claims 1. ) Apparatus for winding a thread of yarn using a spindle, characterized by a drive device with a variable speed drive for rotating the spindle, a device for actuating the drive device for rotating the spindle at an initial speed before starting to wind up the thread the spindle as well as for rotating the spindle with a normal winding speed different from the initial speed after starting the winding of the thread on the spindle and a holding device for shifting the thread to initiate its winding on the spindle " Apparatus for winding a thread of yarn using a spindle in particular according to claim 1, characterized by a holding device for displacement of the yarn thread for the purpose of initiating its winding onto the spindle and a device for releasable Aligning the thread for winding a run-out end and for releasing the thread for the Initiation of the winding of a package. Device according to claim 1 or 2, characterized in that that a device is provided which automatically cuts the thread when it opens the spindle starts winding, - 14 - 109835/1158 4. Apparatus according to claim 1, characterized in that a device for the releasable alignment of the Thread for winding up a run-out end and for releasing the thread for the purpose of introducing the Spooling a package is provided. 5. Apparatus according to claim 1, 2 or 4, characterized by the alignment device between a holding position, in which the yarn thread is aligned for winding the outlet end, and a release position, in which the thread is released to initiate the winding of the package, back and forth relocatable facility. 6. Device according to one of the preceding claims, characterized in that a holding device between a first position in which it holds the yarn thread and a second position in which the yarn thread is displaced in the above-mentioned manner, a device which can be displaced back and forth is provided is. 7. Apparatus according to claim 6, characterized in that the holding device is in its second position holds the alignment device in its holding position and when it moves into the first position the Alignment device releases for the purpose of moving into their release position. 8. Device according to one of the preceding claims, characterized in that the alignment device can be brought into its release position by shifting the yarn thread when it is through the holding device is released. 109835/1158 9. Apparatus according to claim 8, characterized in that the holding device when shifted in their second position brings the yarn thread in releasable holding engagement with the aligning device. 10. The device according to claim 9 *, characterized in that that a means is provided which the alignment device resiliently pushes into their holding position. 11. The device according to claim 3> characterized in that that the thread holding device moves the thread between its first and its second position relocated to the severing device. 12. The device according to claim 11, characterized in that the spindle has means for gripping the yarn thread has so that it winds up on the spindle begins, and that the severing device is arranged to sever the thread of yarn after the Gripping means has grasped the yarn thread. 1Y. Device according to one of the preceding claims, characterized in that the actuating device responds to the movement of the yarn thread and the Drive device actuated accordingly. 14. The device according to claim 13, characterized in that that the actuating device has a compensation arm, which adjusts the thread tension during operation of the Keeps the spindle practically constant at the spindle speed, and a sensing device actuated by the movement of the compensating arm which, when the yarn thread is fed to the spindle, the drive device from operation at the first speed to operation at the spindle speed switches and regulates the winding speed depending on the mode of operation of the compensation arm. -10- 109835/1158 IAD ORlGiNAL 15. Device according to claim 6, characterized in that that the yarn holding device moves the yarn thread from its first to its second position Spends in a position in which it is grasped by the gripping device, and it in releasable Holding engagement with the alignment device displaced while in its second position the alignment device holds in their holding position and when moving into their first position, the alignment device for the purpose Releases movement in their release position. ψ 16. The apparatus according to claim 15., characterized in that an alignment means are resiliently provided in its holding position urging means, and means which supports the aligning means in dependence on the movement of the yarn thread for movement into its release position when the holding device, the alignment device enables the device responding to the thread tension to have a compensation arm which, when the spindle is operating at the winding speed, while it is winding the thread to form the thread package, maintains a practically constant thread tension, . and that a sensing device is provided which is actuated by the movement of the compensating arm when the yarn thread is fed to the spindle to the To switch the drive device from operating at the first speed to operating at the winding speed and to regulate the winding speed as a function of the actuation of the compensation arm. - 17 109835/1 158 17. The device according to claim 16, characterized in that that the holding device can be actuated pneumatically. 18. The device according to claim 16, characterized in that that the holding device can be operated by hand. 109835/1158