DE2831130A1 - METHOD AND DEVICE FOR SELECTION AND THREADING IN MULTIPLE SPOOL REELS - Google Patents

Description

Method and device for selecting and threading multiple yarn bobbin winders

The invention relates to a threading device from multiple bobbin winders in general and to one for selecting the yarn according to each Bobbin, this process preceding the so-called "picking" of the corresponding yarn on each bobbin, in particular.

The reelers, to which the invention relates in particular, but not exclusively, are winding devices, which form part of spinning frames for high speed and for spinning synthetic yarns. The spinning frames, which are mainly considered are those for continuous high-speed spinning where the yarns from a spinning device are not subjected to a separate mechanical pull, but simultaneously with it the spinning on the way from the spinning device to a high speed reel device. However, the invention is not limited to this application, but can also be used in reels in which several coils are provided at the same time.

The reel consists of a core on which the coils are located on which the yarn is to be wound and which are generally generated by the contact of the reel with a drive roller are driven, and from guides, the function of which is to move the yarn to and fro on the bobbin in is such that it adopts a corresponding helically crossed arrangement with cross. When the reeling

- 6 809886/0743

finished with a bobbin and removed the bobbin from the reel and has been replaced by an empty bobbin, the thread must be brought into engagement with the empty bobbin, so that it is evenly wound onto the spool. This includes threading, which is usually done by a Device for sucking the yarn is carried out, which grips the yarn, and guiding it by hand-operated Dialing facilities for the desired positions. The yarn is thus with appropriate facilities for Taking up the yarn itself and it is the intended, so-called "tail" formed. This plant is not described, as it may also be of a different type and is of a generally known type. She is not part of the Invention.

As long as the threading does not take place immediately, the yarns are constantly sucked in by the construction device through which the yarns are gripped, with waste then being continuously generated. A possible omission of the threading and picking up allows the amount of waste generated to increase considerably. Obviously working with a Haspler with multiple coils is becoming more difficult Furthermore, in turn, the speed, the number of simultaneously wound on the same core of the Hasplers yarns to _e increases with increasing the corresponding trend of the current technology, the amount of waste which is produced of a coil at each exchange is always significant and can have a considerable detrimental effect on the yield of the production plant. The more difficult this gate passage becomes, the more experience the operators need, and this is a further complication and disadvantage.

In addition, with advanced technology there is a tendency to mechanize changing and replacing the bobbin «

809886/0743

This also results in more interest in the opportunity for Devices for selecting, threading and picking up yarns suitable for full mechanization are.

The invention thus relates to a method and an apparatus for selecting and threading yarns Reel devices that contain multiple coils with which a reliable operation with the smallest production scrap is possible, and those for the mechanization of the plant is optimally suitable and therefore does not require highly specialized operation · The automation of the device can be accompanied by the choice of an automatic device for changing the bobbins, which is compatible with the choice of thread and Threading device provided according to the invention may be. The solution to the task of the voter and threading the yarn on the coils according to the invention can also be a Enable construction and maintenance at greatly reduced costs. Accordingly, the invention results in a remarkable improvement in terms of the technical perfection of the operation, easing it, reducing scrap, and making construction economically viable and safe and way of working.

The method according to the invention is practically characterized in that that the yarns to be selected and threaded each from a fixed point corresponding to each yarn a movable converging point, whereby they lie in correspondingly differently aligned rectilinear paths that these straight paths around the fixed ones Points are rotated by moving the converging point, giving each yarn different orientations within Assume a given angular range because the twist of the yarns lie next to the corresponding search lines that so

809886/0743 ~ ⁸ ~

aligned so that only one yarn in each line adopts the same line orientation and during the twist every yarn next to it is that every yarn from the Option line is picked up with the same orientation if the thread is next to this line, resulting in the end the twist of each yarn is between the respective fixed point and the respective search line, and that all yarns are then gripped by corresponding empty bobbins so that they are taken up by these bobbins.

The device according to the invention, in cooperation with the means for determining a fixed point on each yarn lane, with devices for gripping and guiding the yarns during the so-called pick-up and with a known multiple bobbin reel means for forming a plurality of search lines, each of which is a yarn corresponds to several guide slots next to each line to the Picking up a yarn with the same orientation of the respective search line and a device for moving them together of the slots and yarns received therein into a location where each yarn grips a bobbin.

The converging point of the yarns is preferably shifted mechanically and in accordance with a setback program from a yarn engaging location through a series of search locations, and thus the device contains a pneumatic device for sucking in the yarns and a mechanical device for gripping and guiding the yarns for moving the pneumatic device from one point to another of the desired points, the at least thread take-up points and those for grasping the yarns with the search lines.

- 9_ 809886/074 $

Also, making a tail on each spool prior to wrapping and one accordingly is preferred known type of device for making this tail provided «These devices are arranged so that they are each seized by one of the yarns, that has been received by the respective guide slot.

The search lines and guide slots are also preferred provided in a receiving rod. A device moves this rod from a receiving part to an inoperative one Rest position and vice versa.

The search lines are preferably also determined by search areas which are located next to the guide slot receptacle and are arranged and configured to encounter a yarn of unintended orientation and thus prevent the thread from penetrating through the respective guide slot.

The fixed points are also preferably distributed uniformly in the practically perpendicular guiding direction of the yarns and the corresponding search lines and guide slots are distributed in the same way and with the same degree.

Other characteristics and features of the invention will become apparent of a preferred and non-limiting embodiment described with the help of the drawings.These include:

Figure 1 is a vertical view of a reel device with a search and a threading device according to the invention at the beginning of a recording process;

- 10 -

809886/0743

- ΊΟ -

FIG. 2 shows a view of the same device in a subsequent step of the working sequence;

Figure 3 is an end view of the gate direction at step according to FIG. 2 in the direction 3-3 of FIG. 2, the yarn suction device being omitted;

FIGS. 4 and 5 show the device according to FIG. 1 and 2 in the following steps, parts of the device having been omitted;

FIG. 6 shows the same device in a further winding step j

Figure 7 is an end view in the direction 7-7 of the device according to Figure 2j

Figure 8 is a vertical view of part of the selection device according to an embodiment of the invention and a more detailed representation of the receiving rod part with the search surfaces and guide slots on only one thread;

FIG. 9 shows a section of the rod according to FIG. 8 in the plane 9-9 of FIG. 8, seen in the direction of the arrow; and

FIG. 10 shows a representation of the device according to FIG. 8.

Figure 1 shows the first process step according to the invention. The reference numerals 10a, 10b, 10c and 10d denote corresponding fixed points, each of which corresponds to a yarn. In this application of the invention, these yarns are several parallel threads, which from. the respective spinning devices arrive.

- 11 809886/0743

- ti -

These fixed points consist of yarn guide elements or reels or similar known means which hold the yarn at a given time through a fixed Point lets go.

The reel 11 is in the example shown for simultaneous Winding of four reels 12a, 12b, 12c and 12d set up on one and the same core. Appropriate threading hooks hold the yarns during the manufacture of the tail portion by known means 15a, 13b, 13c and 13d in their location. The - ^ infadelhaken are shaped accordingly and generally has a member with slots that engage and guide the yarns. The line 14 represents the axis of the common core of the The drive roller 15 moves when it is wound upwards.

The kinematic drive 16 of the reel is of a known type and is therefore not described. The gripping device 17 for the yarn or the "yarn sucker" sucks the yarns in and holds them by suction with sufficient force to follow them Desire to move while it can be gripped and held by the reel if it is by the respective Coils are taken. In the example shown, the device 17 is mechanically moved or displaced to To achieve positions without operator intervention, which is not shown as this is not part of the Invention and known to those skilled in the art. The device can also be operated by hand, the yarn suction device is also not shown since it is not part of the invention. A yarn suction device is preferably used after of Italian patent application 22 592/76 is used.

- 12 809886 / & 743

In the position according to Figure 1, the full bobbins are removed from the reel and replaced by empty ones. The yarn suction device 17 has four yarns 18a, 18b, 18c and 18d gripped and transferred it to the movable converging point 19 »which corresponds to the confluence of the yarn sucker. In position 2, the yarn suction device I7, together with its search and guide devices, was placed under the take-up rod 20 out of the reel, which will be described later.

Figure 3i is an end view of the figure 2 shows the figure Yarns 18, which are shown superimposed in Figure 3, and are on a path that passes through the solid Points 10 of the rod 20 are interrupted, and from here they go to Garnsauper 17 »which is only represented by a point is where its axis crosses the plane of the figure.

The selection and guide devices are described with reference to FIGS. 8 to 10. These devices are attached to the receiving rod 20. According to FIGS. 8 and 10, the devices are shown which are related to only one yarn, all devices which are related to the individual yarns are the same, the individual parts are denoted by numbers without letters. Each guide includes a slot 22, which would take rod is formed 20 in the up, the extending portion is provided with a first perpendicular to the axis of the rod, the below labeled "inserter ¹¹ 23rd A part parallel to the rod axis or" hold - or guide groove "24-, Each selector 21 contains two attached to both sides of the mouth 23 of the respective slots 22

- 13 809886/0743

Ύ / angular elements 25 and 26, which are stranded with front sides 27 and 28, which run from two sides up and down into the receiving rod 20, but not exactly perpendicular to this, but corresponding to the yarn webs 18 'and 18 "in the position according to FIG The elements 25 and 26 are also provided with parallel corners on slightly spaced lines 10, aligned exactly parallel to the line on which the corresponding corners 30 and y \ lie. Then the yarn will freely penetrate into the slot 22 through the insertion part 23 and abut the groove 2Pf , as will be described later on On the other hand, if the thread passes in front of a slot 22 with a different orientation than the one mentioned, it will grip the surfaces 25 and 26 at least a n part of the web, so that these prevent the yarn from going into the respective slot 22. The line 32 parallel to the corners 30 and 31 is located in between and thus forms the search line corresponding to a particular yarn.

However, each yarn also grips a corresponding threading hook 13 and thus its path (FIG. 2) runs accordingly the dashed line from the corresponding point 10 to the threading hook 13 and to the slot 22.

The previous description relates to the view according to FIG. 8. The geometric relationships are expediently described in more detail. In fact, corners 30 and 31 run _? although they can be made similar to the segments, in the preferred embodiment because of them

. - 14 -

809886/0743

small thickness not parallel but at an angle to each other. The slot 22, the selector 21 and the fixed point 10 or the threading hook 13 are related to the same thread. When the movable converging point 19 has been brought into a position in which a certain yarn is to be selected and grasped by the guide slot, point 10, point 19 and point 33 result in ζFigure 8) in the middle of the mouth of part 23 of the respective slot 22 has a plane which currently contains yarn parts 18 · and 18 "and is called the search plane. XTm to obtain the desired choice of yarn, the corners 30 and y \ should be in a plane parallel to the search plane and less close to it and If the points 10 are equally spaced from one another so that there is the same distance between the corresponding points 33, the planes corresponding to the points 33 are parallel to one another.

In practice, it is sufficient to place the device in a vertical position Observe plane and lines but no plane and then a V / ähllinie 32 and the protrusions of the corners 30 and 31 of the View drawing plane. However, the circumstances are of the geometrical distance has not been forgotten.

Since the bodies are not rigid in practice, they can deviate from the ideal geometrical relationships and thus be admissible by the geometrical rules which are considered to be ideally suited to it.

The curl position of the yarn 18a is shown in Figure 2, as shown, lies on the corresponding search line 32a (dashed line) and the converging point 19

- 15 809886/0743

is enough after it is next to the search device 21a with the desired orientation has been placed in order to enter the guide slot 22a not shown in this figure, The other yarns were not properly aligned when they were passed in front of the device 21a, and skipped the setup.

The yarn sucker 17 (Figure 4-) is shifted all the way to the left has been, where he has passed the device 21a during the shift. Meanwhile the yarn 18a does not have only penetrates the slot 22a, but is also abutted against the retaining groove 24a, which is of the corresponding threading hook 13a is held. If the facility is in is in the position according to FIG. 4, the yarn now parallel to the selection line 32b penetrates for the reason described the slot 22b. Then, when the yarn sucker 17 is in the position according to Figures 5 and. 6 moves, the yarns kick 10c and 10d for the same reasons into the corresponding slots 22 and are in the corresponding retaining groove and the corresponding threading hook 13 held. In this Then the yarns are ready to be placed on the respective empty bobbins.

The pick-up rod is now attached to a pivotable arm 35 (FIGS. 1 and 3) which can be rotated to the left can (^ igur 3) "and describes a circular arc 36, which is dashed is drawn. As a result, the rod goes under the empty bobbins that carry the yarn with it and moves then so far upwards until it first reaches the point 35 ", with the hem also at the largest Diameter of the winding is occupied by this. At this point move the threading hooks 13 and the rod 29, which carries these hooks, the yarn for a given movement

- 16 809886/0743

(for example a rotation) in order to use the movable threading hook (not shown) when the tail is produced to seize, which causes the windings. All of this is known and cannot be part of the invention can be carried out in known ways by those skilled in the art.

Figure 6 shows the formation of the winding and that on each Coil a winding 37a, 37b, 37c and 37d with the desired Transverse course has arisen, with the individual yarns in a known manner at angles 38a, 38b »38c and 38d move. Obviously, the G-arnansauger is by (not shown) preferably automatic means in brought an appropriate position to resume the process described in due course.

An embodiment of the invention has been described, but various modifications or applications are possible possible without departing from the spirit of the invention.

809886/0743

-η r

Blank page

Claims (1)

PATE NTANWALTS OFFICE BERLIN - MUNICH PATENT LAWYERS DIPL-ING. W. MEISSNER (BLN) DIPL-ING. P. E. MEISSNER (MCHN) DIPLlNG. H.-J. PRESTING (BLN) HERBERTSTR. 22, 1000 BERLIN 33 Your sign Your letter from our sign Berlin, the (oeo) E 12 JUL11978 T7.T.I..T.A. spa. Officine e londerie d-i Este 36 Via Moscova, Milano, Italy Claims 1. A method for searching for and threading yarn onto a receiving device, in particular for multiple bobbin reels, characterized in that the yarns (18) to be taken up ö® from a fixed point (10), the each Associated yarn is brought to a movable converging point (19) so that they are in corresponding differently oriented straight paths reach that these paths by shifting the converging Points (19) are rotated around fixed points (10) so that each yarn (18) is within a given left / leg area assumes different orientations that as a result of the twist, the yarns next to corresponding search lines (32a) which are oriented so that only one yarn (18) has the same orientation for each line - 2 - 809886/0743 BORO MONKS: TELEX: TELEGRAM: PHONE: BANK ACCOUNT: CHECK ACCOUNT: ST. ANNASTR. 11 1-856 44 INVENTION BERLIN BERLIN 31 W. MEISSNER, BLN-W 8000 MUNICH 22 INVEN ei BERLIN 030/891 60 37 BERLINER BANK AG. 122 82-109 TEUt 089/22 35 44 030 / B92 23 82 3695716000 ORIGINAL INSPECTED Line, and each yarn is next to it as it is twisted, that each yarn passes through the Search line with the same orientation is taken when the thread is next to this line so that at the end of the turn each yarn is between the respective fixed point (10) and the respective search line, and that all of the yarns (18) are sequentially gripped by the corresponding empty bobbins (12) so that which are recorded on the reels. 2ο "method according to claim 1, characterized in that the displacement of the yarn (18) around the converging point (19) is automatic and according to a given one Program takes place via a series of search positions from a thread gripping point. 3 «Method according to claim 1, characterized in that the yarns (18) are picked up after the tail of the respective bobbins (12) has formed. 4-, method according to claim 1, characterized in that the fixed points (10) are evenly distributed in a parktisch perpendicular to the feed direction of the yarns and the search line is the same distance away in the same way 5 · Gate direction for finding and threading yarn, in particular for changing bobbins on reels with several bobbins using according to the preceding claims, characterized in that in cooperation with means for presetting a fixed point (10) means for gripping and conveying on each thread web - 3 809886/0743 of the yarns during start-up and a multi-bobbin winder known type and means for producing several of the desired windings (37) on each of the coils (12) located on the same core, consisting of a device for determining several search lines for one thread each, several guide slots (22) next to each line and to pick up a thread with the same orientation as the corresponding one Search line are provided. 6. Apparatus according to claim 5? characterized, that the device (17) for gripping and conveying the yarns (18) is a pneumatic device for suction of the yarns and mechanical means for moving the pneumatic device from one to the other contain the desired layers, - which have at least one yarn take-up point and positions at which the yarns are seized by the "" uch lines. 7. Apparatus according to claim 5, characterized in that the wink! Device means of a known type for producing of the tail, which are arranged so that they are each gripped by a yarn (18) that of corresponding Guide slot (22) has been added. 8. Apparatus according to claim 5 »characterized in that the fixed points (10) are evenly distributed perpendicular to the thread guide and the corresponding Search lines and guide slots (22) in the same way are distributed and are the same distance away. 809886/0743 Device according to claim 5 »characterized in that that the fixed points are evenly distributed perpendicular to the direction of thread guidance and the coarse ones Search lines and guide slots in the same Manner and are separated from each other in the same amount. Device according to claim 5 »characterized in that the book lines through, at the mouth (23) of the Guide slots (22) lying surfaces (27, 28) determined which are arranged and designed to grip a yarn (18) with inaccurate alignment thus preventing the yarn from entering the corresponding guide slot (22). 809886/0743