DE3133372A1 - Yarn breaker on a spinning and twisting machine - Google Patents

Abstract

The invention relates to a yarn breaker on a spinning and twisting machine, which is arranged between a drawing unit and a spindle at the joining point of two slivers running out of the drawing unit at a distance from one another, is mounted on the machine frame and has two fingers, between which the finished yarn runs through. The yarn breaker can be used on machines with a vertical yarn run and on machines with an inclined yarn run and is so designed that it can be moved into and out of the running region of the finished yarn (7) or can follow this running region exactly. This movement can take place by pivoting about an axis or by horizontal displacement. There is also the possibility of pivoting a plurality of yarn breakers jointly. Whilst, in machines with a vertical yarn run, the yarn breaker (3) is pivotable between two end positions, in machines with an inclined yarn run there is the possibility of bringing about a continuous shift of the yarn breaker according to the variable position of the yarn-guide members. <IMAGE>

Description

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ZINSER TEXTILMASCHINEN GMBH
7333 Ebersbach / Fils

Thread breaker on a spinning-twisting machine

The invention relates to a thread breaker on a
Spinning-twisting machine, which is between a drafting system and
a spindle behind the junction of two from the
Drafting system at a distance of slivers running out from each other
is arranged, is mounted on the machine frame and a
has thread guide open on one side, between which the
Finished yarn runs through.

Such a thread breaker is already state of the art known, which is designed so that in the event of a fader break the thread breaker to a transverse to the finished yarn Axis pivots, causing a subsequent break in the other sliver and the yarn around at least one of the two Wraps the thread breaker finger (DE-GM 79 T2 423).

Here, the thread breaker consists of a swivel part with
the two fingers, the pivoting part being rotatable about the aforementioned axis with respect to a bearing part arranged on the machine frame.

The disadvantage of this known arrangement is that, for example, in a spinning-twisting machine with a vertical thread path

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the removal of the full cops is very much hindered or a complex change in the assignment of spindle and drafting system and other items becomes necessary.

Is there a disadvantage in machines with an inclined thread path? that the fingers of the thread breaker must be made unnecessarily long in order to capture all positions of the constantly changing thread run of the finished yarn from the empty to the full cop, or that thread breakers of other known types, which require exact alignment to the thread run, are not used can be »

The object of the present invention, on the other hand, is to provide a Form thread breaker of the type mentioned so that no obstruction of the machine with a vertical thread path Bobbin withdrawal occurs, whereas in machines with an inclined yarn path, the optimum position of the yarn breaker is always in relation to it the grain should be guaranteed.

This object is achieved in that the Thread breaker is mounted movably. This has the advantage that, for example, in machines with vertical Thread run of the thread breaker simply out of the running area of the finished yarn needs to be pivoted or pulled out so that there is no longer any obstruction to the bobbin withdrawal istο On machines with an inclined thread path, the thread breaker always in the optimal position with respect to the changeable Running area of the finished yarn are guided.

In a further embodiment of the invention, the thread breaker be moved out of the movement path of machine parts automatically or by hand. This embodiment is special advantageous for machines with vertical grain.

Another feature of the invention can be the thread breaker be stored automatically trackable to the movable yarn path in the course of a withdrawal. This construction relates

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on machines with an inclined yarn path, whereby the Thread breaker is able to always find the optimal position regarding of the running area of the finished yarn.

In a further embodiment of the invention, the thread breaker be pivotable automatically or by hand, with the pivot axis to one of the thread path and the open side of the thread breaker contained plane is arranged vertically. This embodiment is suitable for machines with a vertical thread run as well as for machines with an inclined yarn path bar, in the latter case the thread breaker should preferably be designed to pivot automatically.

There is also the possibility that the thread breaker selbs active or displaceable by hand, the direction of displacement in one of the thread path and the open side of the thread breaker contained level.

According to another feature, the thread breaker can be moved automatically. In a further embodiment of the invention there is on the other hand the possibility that every thread breaker is pivotable or displaceable by hand between two stops, this embodiment being special refers to machines with vertical grain. Furthermore, the thread breaker can be locked at least in the Operating position are held. In this case, at least one leaf spring can be used as a locking device, so that an operator is able / the thread breaker between two Move end positions.

According to another feature of the invention, the thread breaker can be connected to a shaft which has a drive device is pivotable. This construction also relates to both embodiments, namely to machines with inclined and on machines with vertical grain.

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Furthermore, the thread breaker can be arranged on a rail which can be displaced via a drive device.

Another feature of the invention can be the axes the pivoting movements of Ses thread breaker parallel to each other or be arranged coaxially. Furthermore, the thread breaker can have a conically widened insertion area for the finished yarn have, so that the finished yarn is always in the correct function Way between the two fingers when inserting or pivoting the thread breaker.

Another feature of the invention can be the drive device Operationally connected to a movable machine part that assists the variable path of the thread be or be moved synchronously with it. Here, the drive device can be connected to a lever, which aif a cam element slides with a thread guide of another spinning-twisting point on the opposite Machine side is connected. This construction relates specifically to machines with an inclined yarn path.

The invention is illustrated below with reference to in the drawing Embodiments described in more detail. In the drawing show:

1 shows a schematic side view of a thread breaker according to one embodiment in a machine with a vertical thread path;

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Fig. 2 shows a possibility of driving the thread breaker
via worm wheel and worm;

3 shows a further possibility of driving the thread breaker via a piston-cylinder unit;

Fig. 4 is a side view of a thread breaker for
manual panning;

FIG. 5 is a front view of the thread breaker according to FIG

6 shows another possible embodiment of the thread crusher and its attachment to the machine frame;

7 shows a plan view of a further possible embodiment a thread breaker;

Fit. 8 is a schematic side view of another Possibility of movement of the thread breaker;

Fig. 9 is a plan view of another embodiment with horizontally movable thread breaker;

FIG. 10 is a side view of the thread breaker according to FIG

11 is a schematic side view of a pivot ble thread breaker in a machine with a ge inclined thread path;

rig. 12 another possibility of executing the welding action of the thread breaker.

In Fig. 1, a spinning station of a twisting spinning machine is shown schematically, with a drafting device 1
and a rotating spindle 2, a thread breaker 3 and a
Thread guide 39 are located. Two run through the drafting system 1

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Slivers 4 at a distance from one another to a point of union

5 and from there on as finished yarn 7. The thread breaker 3 consists essentially of two fingers 6, between which the finished yarn 7 runs, a pivoting part 10, on The fingers 3 are attached to it, as well as a bearing part 9. The pivot part 10 can be pivoted about an axis 11 with respect to the bearing part 9.

This bearing part 9 is arranged on a shaft 8, which is mounted on the machine frame »If a sliver breaks pivots the pivot part 10 of the thread breaker 3 about the axis 11 downwards, whereby the lower sliver is also torn and a wrap around the two fingers 6 of the thread breaker takes place.

When spinning, the spindle 2 is in the lower position u. When pulling off the full head passes the position o. It can be seen here that the thread breaker 3 in position I would impede the bobbin withdrawal. In order to prevent this disadvantage, the bearing part 9 of the thread breaker 3 can be pivoted about the longitudinal axis of the shaft 8, and although in position II. Here, the bearing part 9 rests against a stop 31 fixed to the machine frame, so that the position in the end position II is clearly defined.

After the bobbin withdrawal has been carried out, the thread breaker 3 is moved back into position I, whereby by contacting the Stop 30, the thread breaker is in its correct working position.

About the introduction of the finished yarn 7 between the two fingers

6, a conically widened insertion area 25 can be present according to FIG. 7, which has the width a, whereby the finished yarn 7 can be properly guided between the two fingers of the thread breaker 3.

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The thread breakers should be used to attract all bobbins together be movable together; - to pull off individual bobbins, on the other hand, the thread breakers should also be movable individually. To the joint actuation of all thread breakers, the bearing part 9 is fixedly arranged on the shaft 8 and this shaft 8 is a drive assigned, for example in the form of a worm wheel 27, a worm 26 and a motor 28 according to FIG. 2. As a result all thread breakers 3 of the spinning-twisting machine can be pivoted from position I according to FIG. 1 into position II the.

Another possible embodiment of such a drive is shown in FIG. 3. Here, the shaft 29 is with a Pivot lever 34 is provided, which in turn is connected to a piston rod 33 of a piston-cylinder unit 32, which can be actuated via a control valve 35. This control valve 35 is movable in two positions, so that accordingly the position of the two sections of the control valve 35 an upward or downward movement of the piston rod 33 and thus a Pivoting the pivot lever 34 is carried out. This drive device also allows the thread breakers 3 fold down together from position I to position II, with the end positions of the pivoting movement passing through the end positions of the Piston-cylinder unit can be determined.

In Fig. 4 and 5 is an embodiment of the folding of individual thread breakers 3 from their working position in the Rest position shown. Here, the bearing part 9 of the thread breaker 3 is rotatably arranged on the longitudinal axis of the shaft 8 and fixed laterally by two delimiting elements 12 and 13. The bearing part 9 has a cam 17 which is pivotable between two stops 15 and 16 of the limiting element 13.

In the situation shown in Fig. 4, the thread breaker 3 is in the working position, i.e. a finished yarn is running

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between the two fingers 6 through. Here, the cam 17 is on the stop 15. The thread breaker is now manual 3 pivoted counterclockwise, the cam 17 comes against the stop 16, whereby the two fingers 6 from are swiveled out of the running area of the finished yarn and thus in the case of spun-twine machines with a vertical thread course there is no obstruction of the bobbin withdrawal.

It is understood that the shaft 8 for common actuation all thread breakers can also be pivoted.

Another possibility of manually pivoting individual thread breakers away is shown in FIG. 6. Here, the thread breaker 3 with its bearing part 9 is attached via the horizontal shaft 8 ″ to an intermediate element 44 , which in turn is attached to the machine frame 21. This construction makes it possible to arrange corresponding thread breakers 3 on the machine frame 21, whereby the entire device with the Parts 9, 10, 44 and 8 'can be retrofitted to the machine frame 21. By rotating the rod 21! All thread breakers can be moved together - to pull off individual bobbins, the associated thread breakers can be individually pivoted around the shaft S' by hand.

In Figure 8, a further ο Äusführungsmoglichkeit the invention is shown, wherein a thread breakers 3 ¹ is not rotated but is displaced horizontally. Here, the drive takes place, for example, via a toothed rack 41 and a toothed wheel 42. It is thus possible ^{to bring all thread breakers 3 1 on} one side of a spinning-twisting machine from their working position to the rest position. In order to bring individual thread breakers into the rest position, they can be arranged on a rod 21 by means of hinges, as in FIG. This rod can be attached to a bearing element 50 according to FIG. 8, which is connected to the toothed rack 41. By turning the gear 42, the rack 41 experiences a movement, whereby all thread breakers 3 ¹ horizontally in the or

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be moved out of the running area of the finished yarn 7. To pull off individual bobbins, the thread breaks 3 ¹ in question can be pivoted upwards in the direction of the arrow and thus move out of the knitting area with the finished yarn 7.

Another embodiment is shown in Fig. 9 and TO represents. Here, a yarn breaker 3 'to the two arms 6' is fitted, which tapered shape having To move the yarn breaker in the rest position since part with the two fingers 6 ¹ within the bearing part 9 ¹
moved, two arms 19 and 20 slide within an elongated hole 23 of the bearing part 9 ^1. In each of the two elongated holes: 23 there is a leaf spring 24, which ensures locking of the thread breaker 3 'in its working position according to Fi <and 10 or in its retracted position at the rear end of the elongated hole. This Ausführungsbe: game is particularly applicable to spinning-twisting machines with a vertical thread path, since according to FIG. 9, the relatively narrow area W is indicated in which the thread in this
Shape of the thread breaker should run. As a result of this area! W results in the need to track the thread breaker 3 ¹ in machines with an inclined thread path.

In Fig. 11 a spinning-twisting machine with an inclined thread path is shown schematically. Here you can see how
the thread guide 39 with increasing coping of the
lower position χ moved to upper position y. In all
Intermediate positions between χ and y must be guaranteed,
that the thread breaker 3 ″ always properly guides the finished yarn 7 between its fingers 6. Therefore, according to the invention, a displacement of the thread breaker 3 ″ is carried out in order to keep it in the correct position in relation to the finished thread 7.

In the embodiment according to FIG. 11, the thread breakage is: 3 "is therefore again arranged on the horizontal axis designed as a shaft 29 and can be pivoted about it. Fixed to the

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Arm 38 of the thread breaker is connected to a lever 36 which interacts with a cam element 37. This cam element 37 can move from a lower position u to an upper position o ^ x-iodurch swiveled through the two holding parts 36 and 38 of the thread guide 3 "from the dashed to the extended position", This ensures that the finished yarn 7 is always runs in an optimal way between the fingers 6 of the * thread breaker 3 ". In the embodiment shown in FIG. 11, it is possible to move the cam element 37 from its lower position χ to the upper position y "the cam element 37 on a lever 50 of a thread guide 39" on the opposite side of the spinning-twisting machine If the thread guide 39 ″ now lifts from the lower, dashed position into the upper, sucked-out position according to FIG. 11, the interaction of the cam element 37 with the two-armed levers 36 and 38 causes the thread breaker 3 ″ to pivot about the shaft 8 or 39 and swivels from its position shown by dashed lines into the position shown in solid lines. The two fingers 6 of the thread breaker 3 ″ thus always assume an optimal position in relation to the finished yarn 7, over the entire working range. .

In Fig. 12, a further embodiment is shown. Here, the thread breaker 3 'with a hinge 18 is on attached to a part 40, which in turn cooperates with a shaft 8 "= So: it is possible to use the thread breaker 3 'to move from its pivoted position I into the pivoted position II by rotating around the shaft 8, which is formed by the hinge Iß. On the other hand it is also possible to drive the shaft 8 ″, for example with a drive according to FIG. 2 or 3, so that here too the thread breaker can gradually pivot according to FIG. 11 according to the course of the finished yarn. Comes to Fig. 11, for example the thread guide 39 from its lower position χ to the upper position y, so the thread breaker 3 'pivots according to FIG. 12 continuously around its 8 "shaft, which ensures

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is that the thread breaker 3 ¹ always assumes its optimal position with respect to the finished yarn 7. On the other hand, it is possible ^{to move the thread breaker 3 1} by pivoting about the shaft 8 out of the active area into position II.

The possibility of movement of the thread breaker 3, 3 ¹ or 3 "can be used both in spinning-twisting machines with a vertical thread run as well as in spinning-twisting machines with an inclined thread run In this embodiment there is only one pivoted-in and one pivoted-out position or an advanced or a retracted position of the thread breaker 3 or 3 '. These embodiments are shown in FIGS. 6 and 9 as well as FIG. 12, on the other hand, if one wants to move all the thread breakers between two end positions in a machine with a vertical thread course for better execution of the bobbin withdrawal, the drives according to FIGS. 2 and 3 as well as according to FIG. 8 can be used .

In machines with an inclined yarn path, an embodiment according to FIG. 11 is possible in which the yarn breaker 3 "always follows the path of the finished yarn 7 continuously; a drive according to FIG. 2 or FIG. 3 or according to FIG . 8 provide. In this case, the drive shaft for the respective drive device can connect with the corresponding lifting movement of the spindle 2, so that the yarn breaker in question 3, 3 ¹ or 3 "is always also pivoted continuously and thus an optimum position of the finished yarn 7 between the two Fingers 6 guaranteed.

A mixed embodiment is shown in Fig. 12, wherein the thread breaker 3 'on the one hand both between the

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both end positions 1 and II can be folded down around the hinge 18, and on the other hand it can be continuously rotated around the shaft 8 ″ via a corresponding drive device, so that a simultaneous movement of the thread breaker 3 'is possible in machines with an inclined thread path. In these machines 3 devices can also be used to move the thread breaker, which allow a step-by-step adjustment moved between the permissible limit ranges, as they are designated with W in the embodiment according to FIG. 9, for example.

PaaantanwSlt®

Dipl.-mg. E. Eder

Dipl.-Ing. K. Schieschk®

0 MflnChon 40, Ellsabath8tra8e34

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Claims (8)

ZINSER TEXTILMASCHINEN GMBH 7333 Ebersbach / Fils Thread breaker on a spinning-twisting machine 1. Yarn breaker on a spinning-twisting machine, which is arranged between a drafting system and a spindle behind the junction of two slivers running out of the drafting system at a distance from each other / is mounted on the machine frame and has a thread guide open on one side, between which the finished yarn runs, characterized that the thread breaker (3, 3 ¹ , 3 ") is movably mounted. 2. Thread breaker according to claim 1, characterized in that the thread breaker (3, 3 ') from the path of movement of machine parts is mounted automatically or by hand. 3. Thread breaker according to claim 1, characterized in that the thread breaker (3 ") which is movable in the course of a trigger Thread run is automatically stored nachführbär. BATH ORIGINAL 4. Thread breaker according to claim 2 or 3, characterized in that the thread breaker (3, 3 ^r , 3 ") can be pivoted automatically or by Han. 5. Thread breaker according to claim 4, characterized in that the pivot axis (8, 8 ¹ ) of the thread breaker is arranged perpendicularly to a plane containing the F denlauf and the open side of the thread breaker (3, 3 ',. 3 ". 6. Thread breaker according to claim 2 or 3, characterized in that the thread breaker (3 ¹ , 3 ") can be pushed ν automatically or by hand. 7. Thread breaker according to claim 6, characterized in that the direction of displacement lies in a plane containing ^{the thread path and the open side of the thread breaker (3 1} , 3 ")." ... 8. Thread breaker according to one or more of the preceding A claims, characterized in that the thread breaker (3 ^{n is} automatically movable .. 9. Thread breaker according to one of the preceding claims, characterized characterized in that each thread breaker can be pivoted by hand between two stops (15, 16; 30, 31) or can be moved. 10. Thread breaker according to claim 9, characterized in that the thread breaker is held in at least the operating position by locking devices (23). 11. Thread breaker according to claim 10, characterized in that there at least one leaf spring (24) is used as a lock. BATH ORIGINAL = Thread breaker according to claim 4, characterized in that the thread breakers ('3 »3") are connected to a shaft (29) which is driven by a drive device (26, 27; 32; 36, 37) is pivotable. 13. Thread breaker according to claim 6, characterized in that the thread breaker (3 ¹ ) is arranged on a rail which is displaceable via a drive device (41, 42). 14 «thread breaker according to claim 4, 8 and 9, characterized in that that the axes of the pivoting movements of the thread breaker are arranged parallel to one another or coaxially. 15 »Thread breaker according to one of the preceding claims, characterized characterized in that the thread breaker (3, 3 ') has a conically widened-ginschubbereich (25) for the finished yarn having. 16. Thread breaker according to claim 12 or 13, characterized in that that the drive device (36, 37) with a variable path of the thread (7) determining, variable Machine part (50) is operatively connected. Thread breaker according to claim 16, characterized in that the drive device is connected to a lever (36) which slides on a cam element (37) which is connected to a thread guide (39 ^! ) Of another spinning-twisting point on the opposite side of the machine is. Patent attorneys Dlpl.-lng. E. Eder Dipl.-Ing. K. Schieschke 8 Munich 40, Ell8abethstraBe34 BAD ORSGINAL