DE3429153C2 - Creel - Google Patents

Abstract

Textile machine for processing threads in which supply bobbins are placed in creels. The creels are set up in planes perpendicular to the front of the machine and can be moved in these planes. The creel is divided into sections, each comprising a feed section and a reserve section. Service aisles are created between the sections.

Description

Fixed thread guide carriers are provided next to one another parallel to the machine front, each for a cooperating pair of coils a common, acting as a balloon thread aführer Have thread guides.

It has now been found that the formation of the thread balloon is of great importance for the smooth running of the thread, especially at high thread speeds thread breakage can occur if the thread does not balloon or does not balloon well or when a multiple balloon is formed found that the ballooning properties of the thread as the thread runs off the bobbin with decreasing Change diameter.

In DE-PS 30 29 598 a drainage aid is described, apparently the adverse consequences of these changes in ballooning properties during the decrease in diameter to compensate by the thread run-off. This is to be done by making the five circular The drainage aid forming the outer edge is constructed from segments which are displaceable in the radial direction. As the diameter decreases, the segments should be shifted in such a way that the outer diameter the drainage aid becomes smaller in stages or continuously. The drainage spout described is common Pulling off threads upside down from at least two superimposed supply bobbins applied. To eliminate the consequences of changing Ballooning properties during the thread run-off of individual bobbins attached to creels is the one described Drainage aid not suitable

The invention is then based on the object that occurs when the thread runs off the supply bobbin influencing forming thread balloon so that the running thread its good ballooning properties Maintains during the entire winding cycle. According to the invention, this object is achieved in a creel for Supply bobbins in a textile machine for processing threads, each with a supply bobbin assigned to it Balloon thread guides solved in that the supply bobbins individually or in groups during the winding cycle relative to the balloon thread guides are movable so that the distance between the supply bobbins from the balloon thread guides assigned to them can be changed in the course of the winding cycle in such a way that the Ratio of the distance between the balloon thread guide and the associated supply package to the diameter the supply package remains within specified limits or constant during the winding cycle.

According to the invention, the creel is preferably divided into section groups, each section group a supply section and a reserve section with supply bobbins on the one hand and reserve bobbins on the other comprises, between each adjacent group of sections, a service aisle perpendicular to the longitudinal front of the machine runs, and where the master section and reserve section both transversely and independently of one another can also be moved parallel to the longitudinal direction of the machine. From the service corridor it is on the one hand possible to load reserve coils on an empty gate section, but especially the connection to manufacture the reserve spool with the supply spool, d. H. the necessary thread ends of the spare bobbin and to link the supply spool to one another.

The coils are arranged in only one plane on each section. Each gate section consists of one vertical plane cantilevered mandrels provided on which the coils can be attached. Have thereby the gate sections, which are designed to be congruent with one another, only have a shallow depth. That simplifies the operation.

The mandrels can be pivoted in one embodiment, which results in a greater packing density at the same time undisturbed ballooning of the thread path is made possible. This pivoting is preferably done synchronous for all coils. For synchronous swiveling of all supply bobbins in the template section are in each gate section several vertical support devices for the spool mandrels around one vertical axis pivotably mounted. This pivot axis preferably goes through the longitudinal center point of the attached supply spools. The supporting devices of a section are synchronous Pivoting connected to each other e.g. by a rod which is hinged to each support device

To load the individual gate sections with reserve bobbins, the gate section and its bobbins run empty have moved out of the gate area. During this time, the threads run from the presentation section further down.

The thread guides, which form the tip of the balloon for each thread running off (balloon thread guides), are fixedly arranged between the gate sections in each case of a group. Every balloon thread guide lies there on the axis of both a supply reel of the supply section in operation and a reserve reel the associated reserve section in the operating position. This makes it possible that the threads from the presentation section continue to run undisturbed, while the other section with reserve bobbins loaded or exchanged for a loaded reserve section.

It is provided that gate sections with empty tubes against gate sections with full bobbins be replaced. These gate sections with full bobbins can be carried by a trolley in the service aisle can be moved along the machine.

Because the gate sections are perpendicular to the longitudinal direction of the machine are set up, they can be moved individually into the gate carriage. Through the same or another gate trolley, the sections with the empty tubes can also be traversed. the Gate wagons contain corresponding guides that run transversely to the direction of travel.

The stationary balloon thread guides are in a vertical plane, which is perpendicular or transverse to the longitudinal direction of the machine is, preferably arranged on a stationary side frame, in which the gate sections are retractable. For this purpose, the side frame has guides in the form of standing or hanging rails or the like. On both sides of the plane with the balloon thread guides.

These guides can be fixed in place. That means that between each group of sections an access corridor of constant width results.

Depending on the size of the supply spools and the other local conditions on the machine, It turns out that either the service aisle is too narrow or the discharge balloon of the supply spools running thread is too short, so that there is no unhindered thread run-off. To the solution it is proposed for a preferred exemplary embodiment that the gate sections also parallel to the front of the machine are movable. In this version

the gate sections can initially be moved close to the fixed thread guides provided between the gate sections for each group at a small distance. In this position, the reserve bobbins are connected to a supply bobbin each, which is beneficial against the small distance between the retracted section and the stationary thread guides of the supply section of the same group. Thereafter, the gate section, which is now to be designated as the reserve section, is moved away from the stationary thread guides parallel to the longitudinal front of the machine, so that the operating aisle between the groups of the gate section either disappears or is greatly reduced in size. The distance between the reserve section and the stationary balloon thread guides can be set in such a way that an optimal thread balloon of the thread running off will result in the forthcoming feeding operation of the reserve bobbin. It has already been pointed out that the design of the thread balloon is of great importance for the smooth running of the thread. If the thread does not balloon or does not balloon well or if a multiple balloon forms, the thread may break. This is especially true at high thread speeds. As already mentioned, the ballooning properties of the thread change as the bobbin diameter decreases, that is, while the thread runs off its bobbin. The length of the coils also plays a role. Depending on the particular circumstances, in particular the thread's run-off properties from the bobbin, provision is made for the distance between the feed section to be changed, ie reduced or increased, by the stationary thread guides as the threads run off from their feed bobbins (winding journeys). A special drive motor that drives the template section at low speed can be used for this purpose. B. be a stepper motor that receives its drive pulses at predetermined intervals. A reduction in the distance will be displayed regularly. A preferred procedure is to first set an optimal distance A of the balloon thread guide in view of the bobbin diameter D, e.g. B. in a ratio A / D = 1/1 and then keeps this ratio constant by reducing the distance A in the course of the trail or only allows changes in this ratio within limits recognized as harmless

To move the gate sections parallel to the front of the machine, a guide frame is preferably suspended in the side frame so that it can be moved. frame contains receiving devices for one gate section each. The guide frame can be used to change the distance between the respective gate section from its stationary thread guides contain a drive, e.g. stepping motor.

In the following, exemplary embodiments of the invention are explained

F i g. 1 is a plan view of a textile machine with a side frame and creel (schematic);

F i g. 2 shows the section through a group of gates in a plane parallel to the longitudinal direction of the machine;

F i g. 3 shows the section through the group of gates looking towards III according to FIG. 2;

F i g. 4 shows the section according to FIG. 2 looking towards IV.

The supervision according to Fi g. 1 shows part of a longitudinal half of a textile machine 1 with drive 5 and the individual take-up reels 4. It should be mentioned that in the embodiment shown on the textile machine three take-up bobbins are arranged one above the other, so that each machine field 15 has twelve processing stations for twelve running threads and four columns each contains three winding devices with take-up reels 4, one on top of the other. A gate group 7 is assigned to each machine control panel 15. The gate 6 therefore consists of several gate groups 7, the number of machine fields 15 and the gate groups 7 being identical. With 12 the running threads are 16 denotes a rotatably driven shaft with thread feed mechanisms for the individual threads. The shaft 16 is mounted in a side frame 2, in which the gate groups are also accommodated.

Each gate group consists of two sections, one of which is used as a presentation section 8 and one as a reserve section 9 form a balloon with the balloon thread guides 14 lying in the middle in front of them.

The reserve bobbins 10 on the reserve section 9 are currently not in operation, but they are with the thread end on their outer layer with the thread end of the Original bobbin 10 connected in the inner layer in a thread reserve 17, for. B. knotted when loading or equipping a gate section (reserve section 9) with reserve bobbins 11 is the thread end of the inner Layer 18 laid ready on a holding rod 19 so that it is easy from the opposite gate section can be taken, which is necessary if this thread end with the reserve bobbin, which has meanwhile become the supply bobbin, during the feed operation to be connected to the outer thread end of a reserve bobbin that has since been brought up.

The balloon thread guides 14 are each stationary on the axis of the supply bobbin or reserve bobbin d. H. in this case attached to the side frame 2 It is around the mouth of thread guide tubes 21, each one thread up and then to Page in the direction of their respective delivery mechanism on the shaft 16, as can be seen in particular from FIG. 4 and the Supervision according to Fig. 1 can be seen The traverse 22, which is on the column 21 is used to hold the upper Thread guide tubes 21. To stabilize the thread guide tubes, further struts 22 can be provided be.

As in particular from FIG. 2, each gate section consists of a guide carriage 23, which is with Rollers 24 in the rails 25 serving as receiving devices can be moved perpendicular to the longitudinal front of the machine. In this guide carriage 23, support devices 26 are suspended pivotably about a pin 27. The pivot axis of the pivot pin 27 extends thereby essentially through the longitudinal center of the supply reels 10 placed on the support devices. or reserve bobbins 11. For attaching the reserve bobbins or supply bobbins, bobbin receiving mandrels 29 are used, which cantilever firmly on the support devices 26 are attached.

By a rod 30 which engages each support device 26 in a pin 31, the support devices are synchronized so that they can be pivoted together, as it is, for. B. in F i g. 3 and 4 is shown

The pivoting offers the advantage that the coils can be arranged closer together without the thread balloons mutually during the thread run-off affect. It goes without saying that the balloon thread guide when the bobbins in the creel sections

be recorded pivotably in the pivoted Condition of the coils should be on their axes. Characterized in that the spool mandrels 29 only on one side protruding from a vertical plane, each gate clion has only a small depth, which is F i g. 2 see power.

As also from FIG. 2 shows the side door in the area of each gate section on both sides of the vertical plane with the stationary balloon thread guides 14 on support frames 32, which are in rails 33 of the Seitcngestells can be moved parallel to the longitudinal front of the machine. A cross strut 34 of the support frame 32 takes the Rails 25 for the guide carriage 32 of each section. Each support frame 32 can be done by hand and / or by drive motor 35, e.g. B. stepper motor, can be moved parallel to the machine longitudinal direction. As a result, the operating aisle 36 can be used between two adjacent groups 7 of gate sections as required enlarged or reduced. An enlargement is particularly appropriate when the on The inner thread ends 18 of the supply bobbins 10 in the unwinding mode, which are deposited on the holding rods 19 (right half of F i g. 2) with the outer thread ends 37 of the reserve bobbins U after a freshly stocked reserve section 9 (Fig. 2, left half) connected, z. B. should be linked. To do this, - as in Fig. 2 shown - the support frame 32 of the reserve section 9 close to the stationary central plane, in which the thread guides 14 and the thread guide tubes 21 are arranged, moved up. In this position In the reserve section, the operator can remove the items on the holding rods 19 of the presentation section 8 Grab thread ends IS and connect the thread ends of a reserve and supply bobbin.

Then the reserve section 9 (in Fig. 2 to the left) in their operating position, in which there is a stable thread balloon of the thread that is about to run off trains

The mobility of the gate sections is in the supervision according to FIG. 1 shown only by arrows 38, which indicate that half the maximum operating aisle 36 is available for the gate movement stands, unless special measures are taken, that adjacent gate sections alternate are in reference mode or standby mode.

It is provided that the distance is changed with the help of the drive motor 35 in the course of a winding cycle, ie when the thread runs from the supply bobbin 10 of the respective supply section from the fixed center plane with the balloon thread guides 14 in order to obtain stable balloon conditions despite the reduction in the bobbin diameter, which ensure good run-off properties of the thread. In this case, which distance A is first determined, the balloon thread guide from its spool, ie from them facing coil end side, wherein the given diameter D of the full bobbin and its length L of the most stable balloon conditions and at the best yarn unwinding properties performs continuous reduction of the distance A can then the ratio A / D <R must be kept constant so that and as a result, the balloon ratios and thread run-off properties do not change during the winding cycle.

But you can also determine the tolerances in which the distance A can be changed and then keep the ratio A / D constant only within the limits of this tolerance, e.g. B. by moving the presentation section gradually in the direction of the balloon thread guides. However, it can also turn out that the ratio A / D must be changed in the course of the winding cycle in order to obtain good balloon and unwinding properties. This is also possible according to the invention by a corresponding change in the distance A in the course of the winding cycle.

List of reference symbols

1 textile machine

2 side frame

3 operating aisle

4 take-up reel, processing point

5 drive

6 gates, creel

7 gate group, section group

8 Presentation Section

9 Reserve section

10 supply spool

11 reserve spool

12 thread running off

13 spare thread

14 thread guides, balloon thread guides

15 machine field

16 shaft with thread feed mechanisms

17 Reserve, thread reserve

18 End of thread, inner layer, inner thread end

19 holding rod

20 pillar

21 thread guide tubes

22 strut

23 guide carriages

24 roles

25 rails

26 carrying devices

27 pins, axle

29 Bobbin holder

30 rod

31 tenons

32 support frame, guide frame

33 rail

34 Cross brace, side frame

35 Drive motor, stepper motor

36 Operating aisle

37 beginning of thread, outer layer, outer thread end

38 arrows

For this purpose 4 sheets of drawings

Claims (8)

1 2 The invention relates to a creel in a Tex patent claims: til machine for processing threads according to the preamble of claim I1 VgL z. B. DE-OS 1. Spool creel for supply spools in a textile 27 05 767 or DE-GM 74 13 351. machine for processing threads, each with s Textile machines for processing textile threads Balloon thread guides assigned to a supply bobbin have a large number of Bc- rern, characterized in that the work places on. Each processing point is supported by Feed bobbins (10) individually fed a thread to a feed bobbin during the winding cycle. The- or in groups relative to the balloon thread guide- the thread is processed and then put back on again. rern (14) are movable in such a way that the distance between the io is wound Supply spools (10) of the respectively assigned to them arranged, which are in front of the textile machine with a loading Neten balloon threaders (14) are set up in the course of the winding service for this. The gate travel can be changed in such a way that the ratio has bobbin receiving devices so that each A supply bobbin can be assigned to the distance between the balloon thread guide (14) and the processing point. the assigned supply reel (10) to the through 15 can. As a supply spool are in this application knife of the supply bobbin (10) during the winding cycle denotes bobbins whose thread is straight for the purpose is deducted from machining within specified limits or constantly. The length of time this the process is referred to as the winding travel of the supply bobbin. 2. Spool creel according to claim 1, characterized furthermore, the creel takes on modern textile drawing, that the balloon thread guide (14) stationary on 20 machines, especially texturing machines for Cheeinem Fixed loose fibers located in front of the machine (1), in particular false twist crimping machines, Side frame (20; 33) are arranged. also so-called reserve spools. Use the spare coil 3. Bobbin creel according to claim 1 or 2, characterized it is a full bobbin, the end of which is the outermost characterized in that the creel (6) in sec- thread position (outer thread end) with the beginning of tion groups (7) is divided, each one Ma- 25 thread, so the innermost thread layer, inner thread loop field (15) connected to a certain number of machines, a certain supply reel, z. B. processing agencies (4) are assigned and the gate is knotted (connection of the reserve coil). Through this Sections (8, 9) comprise, each from a template, a continuous operation of each processing section (8) with the supply reels (10) and a repeater independent of the section fed on each reel (9) exist with reserve bobbins (11), allows 30 cherten amount of thread, since after the expiry of the that between each adjacent Sectionsgroup thread from the supply bobbin (termination of the bobbin (7) an operating aisle (36) across the machine) the thread without interruption from the previous one nenlängsrichtung and that the individual reserve coil runs out So that the reserve coil is Gate sections (8; 9) independently of one another and also to the supply reel, while the empty tube of the hitherto taken from the creel and through transversely as well as parallel to the machine's longitudinal feed reel device are movable. a new spare coil is replaced. The outer thread 4. Spool creel according to claim 3, characterized in that this new reserve spool is now marked with the fact that connected to an inner end of the new original spool located in front of the machine,
chen side frame (34) receiving devices A known textile machine according to DE-OS (23-25) for the gate sections (8, 9) arranged 40 27 05 767 has a gate which is made up of several sections. NEN exists in particular according to FIGS. 1 and 2 of this 5. Bobbin creel according to one of the preceding DE-OS, the original bobbins are on one section Claims, characterized in that the gate and reserve coils on the other section are placed on top (8,9) stuck together with the supply bobbins The individual sections are perpendicular to the machine (10) or the reserve bobbins (11) can be moved relative to the 45 inner front. Therefore every single section can be made from Fixed balloon thread guides (14) pulled out parallel to the thread bobbin frame and with the longitudinal direction of the rescrvespuschinen are movable. len to be replenished. 6. creel according to claim 4 or 5, characterized in that the DE-GM 74 13 531 has a reel creel for characterized in that the side frame (34) parallel textile machines, especially for textile machines for 50 guide stretching, texturing or stretch texturing of frame (32) contains which the receiving device threads and thread-like structures to the object that Services (23-25) for one gate section (8; 9) each from at least two independently movable contain. Partial gates exists. One of these carries a partial gatler 7. bobbin creel according to claim 5 or 6, characterized in that the workplaces are presented in each case flow bobbins characterized in that the gate sections (8,9) through 55 and the other sub-gate the reserve coils. Both one Drive (35) can be moved individually, on the associated coils each have a corresponding 8. Bobbin creel according to one of claims 3-7, common thread guides arranged in a stationary manner. Anyway characterized in that each gate section (8; of the two sub-gates is independent in several 9) support devices (26) for the supply bobbins (10) which can be moved from one another but are coupled to one another, which is divided around a vertical, preferably 60 right partial gate car. Both sub-gates are par- uürCu u € H L-oiigSmiiicipUuivi ucf äüigcStcCKteu νΰΓ- än6i ZUP Nr'aSCiiineniaugSaCiiSC jCvvGiiS SiS ^ ΐίϊιιΟΐΐ VCP- Coils (10) going axis (27) are pivotable and mobile. When the coils of a partial gate run empty for synchronized movement z. B. by one, it will total either against a full mil Rod (30) are interconnected. Coil occupied sub-gate exchanged or for example 65 wisely driven to a loading station where the empty Sleeves are exchanged for full bobbins, whereupon the gate part returns to its old position in the Machine is being retracted. Between each