EP4140928A1 - Device for the continuous winding in the same direction of filamentary material in double winders - Google Patents

Abstract

The present invention relates to a method for the continuous winding of strand-like material on double spoolers with bobbins (1, 2) which are mounted on both sides and are to be inserted with parallel axes, which can be wound on successively with a strand-like material (44) in the same direction and which automatically or semi-automatically after they have been wound be used alternately. The method according to the invention is characterized in that the coils (1, 2) are used opposite to one another in their orientation towards the drive side (S) and the winding of the coils (1, 2) begins at the opposite ends (42) of the winding material due to the orientation the coils (1, 2) takes place.

The present invention also relates to a device for carrying out the method according to the invention, which comprises at least one device for turning over the winding material from the winding material start (42) of a full spool (2) to the winding material start (42) of an empty spool (1).

Description

technical field

The present invention relates to a method and a device for the continuous winding of strand-like material on double spools according to the preamble of patent claim 1. In the following, strand-like material means in particular wires, strands, wires, textile threads, etc. on spools, which have the orthogonal to their winding axis are designed asymmetrically, e.g. with a monoconical winding core and/or have to be wound in the same direction for functional reasons.

Such functional reasons result from the further use of the windings produced on spools with a conical winding core in the subsequent production steps in automatic so-called crimping machines, stranding machines, etc., where a memory-based twisting of the winding material around its own central axis in one direction or the other is counterproductive. Another reason is the continued use of the laps produced on standard spools that are symmetrical on all sides, on which the inner lead-out beginning of the lap must have the same exit direction as the winding direction.

Such windings of strand-shaped goods are produced, for example, in a continuous process in highly productive extrusion systems for coating copper wires and strands, glass and textile fibers into so-called cores for the automotive, data and energy transmission sector.

State of the art

In principle, continuously winding double spools are state of the art in the cable, wire, hose and textile industries. The specific implementation is different in each case. This applies, for example, to the arrangement and movement of the winding points in space and the functional design of the device elements for transferring the winding material from the fully wound spool to the empty spool without reducing the production speed of the upstream system parts. What they all have in common, whether with a horizontal or vertical winding axis, is the axis-parallel arrangement of the winding positions.

It became known, for example, through the disclosure document DE-OS 1 474 231 A1 a double spooler in which the two spools are accommodated on "overhung" shafts or quills mounted on both sides "axleless" in a winding basket, which performs a pivoting movement of 180° and always in the same direction with each bobbin change process. The advantage of this invention is that when the bobbins are inserted in the same direction on "overhung bobbins", the winding on them always takes place in the same direction. Disadvantages here are the limited winding speed and, for example, the use of slip rings for the sensitively controlled winding drives. In the case of "axleless" coils held between quills, the winding direction is always the opposite at the winding points.

In the patent DE 3 534 246 C2 will the, in the DE-OS 1 474 231 A1 obvious disadvantages of the inventive solution mentioned above and eliminated by the invention presented to the extent that the embodiment described represents a technically practical solution with various advantages. Among other things, the winding basket, which can be rotated around the vertical, pivots by 180° into one to transfer the winding material from the full spool to the empty spool and then each other direction. As a result, no slip ring contacts are required to supply the winding drives and no pressure medium supply via rotary feedthroughs is required for the advantageous clamping of the coils "axleless" between quills. Another advantage of this design is the good connection to automated package handling.

The disadvantage, however, is in contrast to DE 1 474 231 A1 that the spools can only be wound once in one direction relative to the winding axis and in the other direction after being transferred to the empty spool. This disadvantage is eg in the utility model DE 202 005 021 409 U1 bypassed while maintaining the vertical winding position with fixed winding points and a revolving laying device.

However, the vertical winding position results in disadvantages in the vertical winding of coils with a cylindrical winding core. In contrast to coils with a conical winding core with a special winding regime, such as in EP 0 504 503 B1 , DE 202 005 021 A1 and DE 10 2012 024 450 A1 described and depending on the winding tensile force, coils with a cylindrical winding core can then slip down at the latest during coil handling and the entire winding can become unusable. Another disadvantage is the space required for the entire machine.

In general, for these same reasons, most double spoolers are designed in a horizontal winding position in the course of general further development. Both at high winding speeds and with larger gross coil weights, the coils are also picked up "axleless", ie between so-called quills. This also has significant advantages for the partial and full automation of package handling.

In the EP 0 056 359 B1 and EP 0 003 385 B1 such coil arrangements are described, for example. Since, among other things, the winding axes would then overlap with the transfer device pivoting over both winding positions, these solutions do not have an "axleless" bobbin holder by means of quills for design reasons. These will include in the CH 537 866 A and U.S. 3,965,528 shown schematically, ie an axis-parallel arrangement of the coils and their inclusion "axleless" between quills.

It is known from the hitherto known double spoolers of horizontal design that they are always installed in the same or random orientation to the so-called catching plane, because the position of the inner winding start that is brought out in relation to the winding direction is usually irrelevant for the intended further processing process. These double spoolers always cyclically wind one spool in one direction and the other in the opposite direction.

From the DE 202 005 021 409 U1 , based on the DE 3 534 246 C2 An embodiment is known which, due to the specific kinematic requirements and disadvantages already mentioned at the outset, is not suitable for double spoolers of a horizontal design.

Presentation of the invention

The present invention is based on the object of creating a method that allows the elongated product resulting from the previous production process to be wound onto spools on automatic double spoolers in such a way that, with regard to the spool geometry, a winding direction is in the same direction, regardless of the winding point the same start and end of winding can be produced and thus all coils wound on the double spooler can be used for the further technological work step.

According to the invention, the above object is achieved according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous refinements and developments of the method according to the invention are specified in the dependent subclaims.

The method according to the invention is accordingly characterized in that the coils are used opposite to one another in their alignment towards the drive side and the coils are wound onto the coils at the opposite ends of the winding material on the coils due to the alignment.

For this purpose, a device for carrying out the method of the type mentioned is preferably characterized in that it comprises at least one device for turning over the winding material from the winding material beginning of a full spool to the winding material beginning of an empty spool.

According to the invention, such a device is preferably designed so that it allows automatic double spoolers to be equipped in such a way that, while maintaining the conventional axis-parallel arrangement of the winding points with spools that are driven and held axislessly between sleeves, a winding of all spools directed in the same direction can be produced.

This is preferably realized peripherally by an automatic or semi-automatic mutual intelligent insertion of the empty bobbins. Automatic means that the process of inserting the empty bobbins into the machine from storage on an infeed idler conveyor or ramp to the winding point of the bobbin and removing the fully wound bobbin from the winding point to the outfeed idler roller conveyor or ramp is full program-controlled.

The advantage here is the possibility of arranging the feed and unloading units together on one side of the machine and thus shortening package handling. In the case of semi-automatic double spoolers, each spool must be fed individually for loading to one or the other winding position. The disadvantage here is the inevitably higher bobbin handling effort by the operator. Ultimately, however, it is decisive that the respective winding point is alternately loaded with the empty spool in such a way that this is always successively wound in the same winding direction after the turning process of the winding material. In the device according to the invention, the winding material is transferred from the full spool to the empty spool and caught, contrary to the previously known designs, not only on the driven spool flange side but also on the opposite flange side.

In the version with traversing winding points and fixed transfer rollers, this is made possible by a transfer device, which is arranged on the spool drive side and whose functional elements enable the running winding material to be drawn in for catching in the catching plane on the drive-side flange and the opposite flange of the empty spool.

In conventional double spoolers with fixed winding positions and traversing traversing rollers, two catching planes are preferably arranged, which allow the running winding material to be drawn in for catching in the catching plane on the drive-side flange and the opposite flange of the empty spool.

Brief description of the drawings

Further goals, features, advantages and possible applications of the device according to the invention result from the following description of an exemplary embodiment with reference to the drawings.

• Fig. 1 eine perspektivische Darstellung eines Doppelspulers mit automatisiertem Handlingsystem und traversierenden Wickelstellen;
• Fig. 2 eine schematische Front-Darstellung eines Doppelspulers mit automatisiertem Handlingsystem;
• Fig. 3 eine schematische Draufsicht auf einen Doppelspuler mit traversierenden Wickelstellen und der erfindungsgemäßen Vorrichtung im Moment des Umlege Vorgangs von der vollen Spule (rechts) auf die Leer-spule (links) mit dem Wickelbeginn am antriebseitigen Flansch;
• Fig. 4 eine schematische Draufsicht im Moment des Umlege Vorgangs von der vollen Spule (links) auf die Leerspule (rechts) mit dem Wickelbeginn am der Antriebsseite gegenüberliegendem Flansch;
• Fig. 5 einen Schnitt durch die Fanghaken- / Fangrollen- Einheit;
• Fig. 6 eine Draufsicht auf die traversierenden Wickeleinheiten und die Fanghaken- / Fangrollen- Einheit;
• Fig. 7 eine perspektivische Ansicht mit einem Fangsystem antriebsseitig ohne Wickeleinheiten;
• Fig. 8 eine perspektivische Ansicht mit zwei Fangsystemen (antriebsseitig und gegenlagerungsseitig) ohne Wickeleinheiten und Spulen;
• Fig. 9 und 10 eine schematische Darstellung des gleichsinnigen Bewickelns;

Show in the drawings

• 1 a perspective view of a double spooler with automated handling system and traversing winding points;
• 2 a schematic front view of a double spooler with automated handling system;
• 3 a schematic plan view of a double spooler with traversing winding positions and the device according to the invention at the moment of the transfer process from the full spool (right) to the empty spool (left) with the start of winding on the drive-side flange;
• 4 a schematic plan view at the moment of the transfer process from the full spool (left) to the empty spool (right) with the start of winding at the opposite flange on the drive side;
• figure 5 a section through the catch hook / catch roller unit;
• 6 a plan view of the traversing winding units and the catch hook / catch roller unit;
• 7 a perspective view with a catch system on the drive side without winding units;
• 8 a perspective view with two catch systems (on the drive side and on the opposite side) without winding units and coils;
• Figures 9 and 10 a schematic representation of the same direction winding;

implementation of the invention

How out 1 As can be seen, the device according to the invention for the continuous winding of strand-like material on double spoolers comprises spools 1, 2, which are mounted on both sides and are to be inserted parallel to the axis, which can be successively wound with a strand-like material 44 in the same direction and which are used alternately automatically or semi-automatically after they have been wound.

In an exemplary embodiment, which Figures 5, 6 , 7 , 9 and 10 shows the device according to the invention in an advantageous embodiment, the implementation of a winding of the bobbins in the same direction with regard to the winding direction 43, the beginning of the winding 42 and the end of the winding is exemplified below on an automatic double spooler as in FIG Fig.1 shown with traversing winding units and monoconical coils.

In 2 , 3 and 4 is the function of the device with your arrangement of the main components, ie the parts 19 to 28, shown schematically in the sequence of movements and result in the advantageous embodiment.

A further embodiment of the device according to the invention, e.g 8 .

In 1 the drawing unit 17 upstream of the actual winding process in a production line, which pulls the winding material 16 through the system, is not shown. The winding material 16 arriving from the left is wound onto the right-hand spool 13 which is just being completed. The dancer unit 11 with the transfer roller 18 is already positioned on the left over the empty spool 1 for the transfer process. Right opposite the infeed of the winding material the inlet idler roller conveyor 3 for the empty bobbins 1 and the outlet idler roller conveyor 4 for the full bobbins 2 are arranged. In this exemplary embodiment, the coils are arranged vertically in a special way and are conveyed intermittently in the loading cycle. The next pending empty bobbin 1 for installation in the double spooler is pushed outside the machine housing from the infeed idler roller conveyor 3 onto the pivoting device 5 aligned with the exit idler roller conveyor 4 . With its pivoting in the xy plane, the empty bobbin 1 moves from the vertical position to the horizontal and is thus ready to be taken over by the bobbin parallel gripper 8, which is mounted at the lower end of a lifting-pivoting column 6 and through this in direction can be raised or lowered along the y-axis and swiveled around the z-axis +/- 180°. This lifting and pivoting column 6 is in turn attached to a transport carriage 7 which can be moved along the paired linear guide units 9 in the direction of the x-axis and these in turn can be moved via a pair of linear guide units 10 in the direction of the z-axis. In this way, the already filled coil can be changed at your winding point 14 or 15 without interrupting the winding process at the other winding point.

With the bobbin parallel gripper 8, the bobbins can ultimately be installed and removed in the winding devices by means of a 180° rotary movement of the lifting and swiveling column in one direction or the other parallel to the z-axis and, on the other hand, also oriented to the swiveling device 5 for winding -Out or -Entry to be passed.

With the directionally variable insertion of the coils into the winding positions with the handling system described using the exemplary embodiment, an essential prerequisite for the function of the device according to the invention is given.

The device according to the invention relates to the special design and arrangement of the functional parts catching hoods 19 and 29, the catching hook rollers 21 and the catcher discs 25 and 27 arranged on both sides of the bobbin for transferring and catching the winding material 16 from the completing bobbin 13 to the empty bobbin 1 at the same winding speed. In 2 the geometric initial conditions are shown as an example for the winding material transfer from the right to the left coil.

In Figures 3 and 4 the transfer process for the same direction winding of all coils used is shown in each case. To illustrate the special nature of this requirement, the coils, in particular the empty coils 1, are drawn with a monoconical winding core.

Both figures represent a plan view of the in 2 shown arrangement.

In the exemplary embodiment, the winding positions guided on the carriages 33, 34, 35, 36 traverse for laying the winding material on the spools.

For the beginning of winding in the same direction on the core of all empty spools 1 with the same direction of winding, the spools are always used in opposition to one another.

In 3 shows the smallest diameter of the winding cone of the empty spool 1 on the left towards the drive side (winding drive 30) and the smallest diameter of the winding cone of the completing spool 13 in the opposite direction. For the shifting and catching process, the empty bobbin 1 is positioned with the inside of the driven flange in the catching plane or in alignment with the winding material run over the traversing rollers 18 .

When the speed of the empty spool is reached in relation to the temporary winding speed, the catching process begins with the pressing down of the winding material 16 until it touches the spool core of the empty spool 1 . The catch hook vertical drive 23 moves the catch hook rollers 21 from position "y1z2" down to position "y2z2" (see also figure 5 ). Then, via the horizontal drive 24, the catch hook rollers 21 are pulled back in the z-direction to Pos. during which it is prevented from being caught by the catcher disk 25 at the right catcher hood 29 . The loose end of the decelerating full bobbin is now left in the rear infeed 37 of the catching hood 19 (see also Fig.5 ) and guided until the coil comes to a standstill. After catching, the catch hook rollers 21 are moved vertically upwards to their starting position "y1z1".

In 4 shows the smallest diameter of the winding cone of the empty spool 1 on the right side opposite to the drive side (drives 30) and the smallest diameter of the winding cone of the completing spool 13 to the drive side. For the shifting and catching process, the empty spool 1 is positioned with the inside of the non-driven flange in the catching plane or in alignment with the winding material run over the traversing rollers 18 .

When the empty bobbin speed is reached in relation to the temporary winding speed, the catching process begins with the catch hook rollers 21 moving forward from the starting position "y1z1" to position "y3z3" and then lowering to position "y2z3" and thus depressing the Winding material 16 until it touches the coil core of the empty coil 1. Then, via the horizontal drive 24 of the catch hook, the catch hook rollers move forward in the z-direction to position "y2z3", away from the winding drives 30. The right-hand catch disc 26 inevitably catches the winding material and shortly thereafter cuts it on the blade 41 of the right-hand catch hood 29, during which it is prevented from being caught by the catcher disc 27 at the left catcher hood 19. The loose end of the decelerating full bobbin is now fed into the front feeder 40 of the right-hand catch hood 29 (see also Fig.5 ) and guided until the coil comes to a standstill. After catching, the catch hook rollers 21 are moved vertically upwards to their starting position "y1z1".

In 7 the device according to the invention with its components for a double spooler with traversing spools is shown again in perspective. It can be seen here that there is a space between the front and rear indentations 37, 38, 39, 40 in the collecting hoods 19, 20, which space is adapted to the geometric conditions when folding over.

8 shows a perspective view of a design of the device according to the invention for double spoolers with traversing laying rollers (not shown). In this exemplary embodiment, a catch disk 26, 28 with a catch hood is assigned to each coil both on the drive side and on the opposite side, as well as 1 central catch hook-roller unit per side. In this case, each collecting hood requires only one feeder for the end of the winding material.

Figures 9 and 10 schematically represent the same direction winding with contrary to built-in monoconical coils. If in 9 the same direction winding of both coils is shown wound clockwise seen on the flange with the larger core diameter, for example, the winding takes place in 10 counterclockwise. Orientation should be given by the respective inner beginning 42 of the winding material and the direction of the winding material 43 accumulating.

List of Reference Numbers

1

empty spool

2

full spool

3

Infeed - carrier roller conveyor

4

Outlet - carrier roller conveyor

5

swivel device

6

lifting swivel column

7

transport carriage

8th

bobbin gripper

9

X-axis linear guide unit

10

Linear guide unit Z-axis

11

dancer unit

12

Empty spool during run-up

13

completing spool to change

14

counter bearing on the left

15

Counterbearing on the right

16

coiled goods

17

trigger unit

18

laying rolls

19

hood on the left

20

hood on the right

21

Catch hook - oblique rollers

22

Catch hook - horizontal roller

23

Catch hook -vertical drive

24

Catch hook - horizontal drive

25

Catch washer on the right - drive side

26

Catch washer on the right - loose quill side

27

Catch washer left - drive side

28

Catch washer left - loose quill side

29

friction ring

30

winding drive

31

Drive bearing on the left

32

Drive bearing on the right

33

Counter bearing carriage on the left

34

Counter bearing slide on the right

35

Drive bearing carriage on the left

36

Drive bearing carriage on the right

37

rear intake of the collecting hood on the left

38

Front intake of the collecting hood on the left

39

rear indentation of the collection hood on the right

40

front infeed of the collection hood on the right

41

Knife

42

inner lead-out beginning of the winding material

43

accumulating winding material

Claims (9)

Process for the continuous winding of strand-like material on double spoolers with spools (1, 2) which are mounted on both sides and are to be inserted parallel to the axis, which can be wound on successively with a strand-like material (44) in the same direction and which are used alternately automatically or semi-automatically after their respective winding,
characterized in that
the coils (1, 2) are used opposite to each other in their orientation towards the drive side (S) and the coils (1, 2) are wound onto the coils (1, 2) at the opposite ends of the winding material (42) due to the orientation . Device for carrying out the method according to claim 1,
characterized in that
it comprises at least one device for turning over the winding material from the winding material start (42) of a full spool (2) to the winding material start (42) of an empty spool (1). Device according to claim 2,
characterized in that
to form traversing winding positions, the device comprises a carriage guide (33, 34, 35, 36) for the coils (1, 2). Device according to claim 3,
characterized in that
the device for shifting is arranged on the spool drive side and comprises the functional elements that enable the moving winding material to be drawn in for catching in the catching plane on the drive-side flange and the opposite flange of an empty spool. Device according to one of the preceding claims 2 to 4,
characterized in that
each coil (1) is clamped between catch discs (25, 26, 27, 28) with friction rings (44). Device according to one of the preceding claims 2 to 5,
characterized in that
for transferring the winding material from the full spool (13) to the empty spool (12) catching hoods (19, 20) each with a rear and a front feeder (37, 38, 39, 40) for the cut end of the material and which are suitable for the Folding geometry are designed. Device according to one of the preceding claims 2 to 5,
characterized in that
at least one catch hook horizontal roller (22) and at least two catch hook slanting rollers (22) are provided, by means of which the overlapping winding material (16) can be pressed vertically in one movement, with the horizontal movement for pulling into the respective catch position for the dem Flange of the empty spool (1) facing or facing away from the winding drive takes place in at least three positions and the winding material can be pulled both in the z-direction towards the drive and pushed and deflected in the opposite direction. Device according to one of the preceding claims 2 to 7,
characterized in that
catch hoods (19, 29) each with only one rear feeder (37, 39) for the cut-off end of the good and catch hook-roller units are provided for transferring the winding material from the full spool (13) to the empty spool (12). Device according to one of the preceding claims 2 to 8,
characterized in that
a handling system is provided for loading the winding positions with bobbins, which consists of a bobbin gripper that can be pivoted and moved in the y-direction on a lift-and-swivel column (6) and moved in the x- and z-direction along linear guide units (9, 10). (8) is formed, by means of which full bobbins (2) are removed in the winding cycle and empty bobbins (1) are provided for the rectified winding and are inserted into the winding positions.

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