EP1075446B1 - Device for manipulating a bobbin in a winder - Google Patents

Description

The invention relates to a device for handling a Coil, in particular a flange coil on a winding machine according to the preamble of claim 1.

For winding threads, tapes, filaments or the like Spulgut are used winding machines that have a winding spindle have on which (at least) one winding tube is plugged on. The winding tube is then wound. As soon as the resulting coil has a predetermined final diameter or has a predetermined final weight, the coil of the winding spindle removed and packaged or processed. The process of removing the full bobbin and plugging it on again an unwound bobbin tube, i.e. changing the bobbin is called Doffen.

Often used for very large and heavy coils Flange coils, the flanges of which are dimensioned so that the flange coil resting on the flanges on the floor can roll for transportation. For removing full bobbins and also used to put on uncoiled bobbins one a freely moving Doffwagen, which the flange coil grabs, pulls (or slips on) and on the floor discards (or lifts off the floor). The handling this device is complex.

A Doffwagen is known from EP-A 0 025 128, which is used for recording of a wound coil without flanges. The coil lies with the winding circumference. After losing weight the bobbin from the spindle and placing it on the doffing wagon the coil is raised so high that an operator can can take off without having to lift the coil. For very severe Coils that are no longer manageable manually are one such a device cannot be used or must again have a transfer mechanism be provided on a transport device.

The invention has for its object a device for To show handling of a coil, in particular a flange coil, which in a simplified manner a bobbin change and one The coil can be removed.

This object is achieved by a device according to the patent claim 1 solved.

An important point of the invention is that guiding devices for low-friction driving of the Doffwag with or without a raised coil are provided so that the Doffwagen does not have to be moved on the floor, which is easy obviously has various problems. It is So to solve the above-mentioned problem a Doffwagen with lifting devices for lifting and lowering a coil between a bobbin height, in which the bobbin on a winding spindle the winder is slidable and removable from it and a transport height at which the coil is on a floor or on a conveyor belt running in front of the winding machine is rollable lying on, provided, furthermore a guide device to run the doff car with little friction or in parallel in a transport direction without a raised coil to the winding spindle between a winding position for winding the coils and a transport position for closing and Removal of the coil provided.

The guide device is preferably in the transport direction firmly connected to the winding machine. This allows no forces occur between the doff wagon and the winder, which the winder relative to the installation site could burden.

Preferably, the lifting devices for supporting the Flanged coil formed on its two flanges, so that no bending forces or tilting moments act on the flanges. Flangeless coils are supported directly on the winding.

The guide device is preferably designed such that the lifting devices are in the winding position in the area the flanges are located so that the winding process is not hindered becomes.

The lifting devices are preferably designed such that they are with the coil in the transport position release and can be moved into the winding position. The The spool is thus free and can be rolled or transported become.

The guide devices preferably comprise straight guides or also telescopic guides, which on the winding machine are attached. This arrangement makes it particularly simple and effectively ensures that when pulling a wound Spool or when placing an empty bobbin Forces on the winding machine occur relative to the installation site.

Preferably, the lifting means for the spool include Pair of levers pivotally attached to the Doffwagen first gripping ends on the flanges or with flangeless coils grip the winding on the circumference and with second actuating ends preferably via a common lifting cylinder are movable to raise and lower the coil. The The pivot axis of the lever corresponds to the axis of rotation of the Telescopic guides. The gripping ends are designed so that they absorb forces acting in the direction of the winding spindle the coil with both flanges on the (in Seen direction of the winding spindle) extended trained Lever ends rests. Therefore, no tilting moments occur on the Gripping on.

The Doffwagen is preferably slidable by hand, which is easy to use. by virtue of is a low-friction management facility thus ensuring good handling of the machine as a whole.

Further features of the invention emerge from the subclaims and the description below of a preferred one Embodiment, which is explained in more detail with reference to figures becomes.

Figuren 1A-8A

Draufsichten der Ausführungsform der Erfindung in verschiedenen Arbeitspositionen, und

Figuren 1B-8B

Seitenansichten auf die Anordnungen nach Figuren 1A-8A in den verschiedenen Arbeitspositionen.

Show here

Figures 1A-8A

Top views of the embodiment of the invention in different working positions, and

Figures 1B-8B

Side views of the arrangements of Figures 1A-8A in the various working positions.

In the following description, the same and parts with the same effect use the same reference numbers. The Embodiment relates to flange coils. Do the washing up without flanges, the winding of which is resistant enough, can also be handled.

1A and 1B show the initial sleeve assembly, in which a flange coil 1 with an outer flange 2 and an inner flange 3 on a by means of a clamping device 7 tensionable winding spindle 6 of a winding machine 5 is postponed. A laying arm 8 of the winding machine 5 is only indicated in the side views of FIGS. 1B to 8B.

On the winding machine 5, which stands on a floor 9, there are guide devices 30 provided which inner, relative to Winding machine 5 movable first bearing 31 and outer, on the Winding machine 5 attached second bearings and in the bearings 31st and 32 running telescopic rods 33, 34. Form this together with lifting devices 20 a Doffwagen 10.

The lifting devices 20 comprise a first lever 21 and a second lever 22. Both levers 21 and 22 have gripping ends 23 or 24 on which on the telescopic rods 33, 34 as well as the levers 21 and 22 are attached. While the levers 21, 22 at (relative to the winder 5) inner ends the telescopic rods 33, 34 are attached, are the gripping ends 23, 24 attached to their outer ends and so long formed that the flange coil 1 with its two flanges 2 and 3 can rest on them.

Actuating ends 25 and 26 of the levers 21 and 22 are over a common lifting cylinder 27 connected so that when Extending or retracting the (short) lifting cylinder 27 the levers 21, 22 and with them the telescopic rods 33, 34 and in turn the gripping ends 23, 24 are pivoted.

The telescopic rods 33, 34 are at their machine outer ends connected via an annular handle bar 35 so that again a frame that is statically determined in itself is formed.

In the position shown in FIGS. 1A, 1B, the coil 1 is located with their flanges 2, 3 on the floor. The Doffwagen 10 is in its inner position, the winding position retracted. The lifting cylinder 27 and the levers 21 and 22 are fully retracted into the winding machine 5.

The handle bar is now used for gripping and lifting the coil 1 35 handled and the Doffwagen 10 from the winding machine 5 pulled out until the handle bar 35 over the outer Flange 2 of the coil 1 protrudes. Now the lifting cylinder 27 actuates and moves apart, so that the right lever 22nd clockwise and the left lever 21 counterclockwise be pivoted. Transfer the telescopic rods 33 and 34 this pivoting movement on the trained as rotatable rollers Gripping ends 23 and 24, so that the coil 1 as in 3A is raised. Now the Doffwagen 10 is on his handle bar 35 inwards towards the winder 5 shifted, as shown in Figure 4A, 4B. The winding spindle is now tensioned via a button, so that the flange coil is firmly seated on it. The gripping ends 23, 24 by actuating the lifting cylinder accordingly 27 (this retracts) lowered. The winding material is manual created and the laying arm 8 swung in. That state is shown in Fig. 5B. Now the winding process can begin.

As soon as the spool is full, the lifting cylinder 27 is actuated again, so that the gripping ends 23, 24 of the levers 21, 22 after be pivoted upwards, whereby the coil is raised. The Clamping device 7 of the winding spindle 6 is opened so that the winding spindle 6 releases the flange coil 1. Now the Doffwagen 10 moved out with the wound coil 1, as shown in Figures 6A and 6B.

The lifting cylinder is used to lower the wound flange coil 1 27 operated again, so that the right lever 22 counter clockwise and the left lever 21 clockwise pivot. The coil is now seated with its flanges 2, 3 on the floor 9 as shown in Figs. 7A, 7B. Now the Doffwagen 10 is moved inwards by means of the handle bar 35, pushed towards the winder 5 until it stops. The full flange coil 1 can now be directly on the floor 9 to be rolled away.

The gripping ends 23, 24 are preferably such as rollers trained that when pivoting the lever 21, 22 on roll the circumference of the flanges 2, 3 so as to avoid the To minimize actuation forces and wear.

LIST OF REFERENCE NUMBERS

1

flanged

2

outer flange

3

inner flange

5

Dishwasher

6

winding spindle

7

tensioning device

8th

laying arm

9

ground

10

doffing carriage

20

lifter

21

first lever

22

cross

24

cross

25

actuating end

26

actuating end

27

lifting cylinder

30

guide means

31

first camp

32

second camp

33

telescoping rod

34

telescoping rod

35

Grab bars

Claims (11)

1. Device for manipulating a bobbin, in particular a flanged bobbin (1), in a winder (5), comprising
   a doffing carriage (10) with lifting mechanisms (20) for raising and lowering the bobbin (1) between a winding level, at which the bobbin (1) can be pushed onto a winding spindle (6) of the winder and removed from it, and a transport level, at which the bobbin can be rolled horizontally onto a floor (9) or onto a conveyor belt running in front of the winder;
   a guide mechanism (30) for low-friction guidance of the doffing carriage (10) with or without raised bobbin (1) in a transport direction parallel to the winding spindle (6) between a winding position for winding the bobbin and a transport position for bringing the bobbin (1) up and carrying it away, wherein the guide mechanism (30) is firmly connected to the winder (5), at least in the transport direction, and formed such that the lifting mechanisms (20) are located in the region of the full bobbin or flanges (2) in the winding position, and are formed such that, when the full bobbin or flanged bobbin (1) is in the transport position, they release the latter and can be displaced into the winding position.
2. Device according to Claim 1,
   characterised in that
   the lifting mechanism (20) is formed for gripping or supporting a flanged bobbin at its flanges (2, 3).
3. Device according to either of the preceding Claims,
   characterised in that
   the guide mechanisms (30) comprise straight-line guides (31-34), wherein guide bars are fastened such that they can be moved out of the winder (5).
4. Device according to any one of the preceding Claims,
   characterised in that
   the lifting mechanisms comprise for each flange (2) or the wound bobbin a pair of levers (21, 22) or similar low-friction support mechanisms which are pivotably fastened to the doffing carriage (10), act with first gripping ends (23, 24) on the flanges (2, 3) in the circumferential direction thereof and can be moved with second actuating ends (25, 26), preferably via a common lifting cylinder (27), for raising and lowering the flanged bobbin (1).
5. Device according to Claim 4,
   characterised in that
   the gripping ends (23, 24) are formed as rollers or similar low-friction support mechanisms which extend in the direction of the winding spindle (6), and that the second actuating ends (25, 26) are disposed inside the winder (5).
6. Device according to Claim 5,
   characterised in that
   the actuating ends (25, 26) are non-rotatably connected via the guide mechanisms (30) to the gripping ends (23, 24) in order to pivot the latter.
7. Device according to any one of the preceding Claims,
   characterised in that
   the doffing carriage (10) comprises a handle bar (35) so that it can be manually displaced.
8. Device according to Claim 7,
   characterised in that
   the handle bar (35) connects ends of the guide mechanisms (30), which are formed as straight-line guides (31-34), projecting out of the winder (5) in the manner of a frame.
9. Device according to either of Claims 7 and 8,
   characterised in that
   the handle bar (35) is essentially in the form of a circular segment and has a diameter which is greater than that of the flanges (2, 3), so that the handle bar (35) can be displaced in the axial direction via the flanged bobbin (1) when the flanged bobbin (1) is lying on the floor (9).
10. Device according to any one of the preceding Claims,
    characterised in that
    the lifting mechanisms (20) are formed for depositing a full bobbin or flanged bobbin on a conveyor belt, a carriage or similar transport system.
11. Device according to Claim 4,
    characterised in that
    the levers (21, 22) and/or the gripping ends (23, 24) are connected together for synchronous movement via levers, gear wheels or a similar transmission mechanism.

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