DE7605262U1 - WINDING MACHINE WITH AUTOMATIC THREAD REPLACEMENT - Google Patents

Description

L J5419 '..'.? .. I '...' Emil Blaschke dc Co. GmbH

Password: "Fadenumleger" Weinfetadt-Endersbach ι.

Winding machine with automatic thread winding

The invention relates to a winding machine for Au. wrap from Threads alternately one after the other on axially arranged side by side, each individually drivable bobbins, with one in front of the

I each winding bobbin traversing traversing thread guide

I; and with a device? to move the traversing fad ^ -n-

I lead from the area of one coil to that of the other. It

Such machines are known in which either the chan-

I switched the yaw thread guide from one bobbin to the other

§ or where both coils and their drive devices

t are shifted so that the empty bobbin is in working position

I sition is brought. It is assumed that the

Which follows the tendency, at right angles to the rotational

ί axis to run onto a spool. So it changes during the shifting process from the full to the empty bobbin

f about. After leaning on the empty bobbin, it is removed from the full

- coil separated (DT-PS 521 566).

It has been shown, however, that changing over by different < circumstances, such as different bobbin diameters, the

Coil edge in disc coils or the space between the two coils is made difficult or even prevented. The string remains' <:. B. hang and fall in the space between the two coils. The thread can only overcome the mentioned obstacles • better if it is at an acute angle to the

^; Coil axis is guided from one coil to the other. For this

With the known devices, when changing the bobbin, the traversing thread guide or the bobbin units together with the drive system would have to be used

7605262 12/23/76

a very high speed of movement can be imposed. Because of the large masses to be accelerated, however, the displacement _;

speed are tight limits. ]

In a known device in which the coils are shifted are, therefore, when changing the bobbin, the threads from the very fast moving back and forth here for the production of cross-wound bobbins Traversing thread guide pushed out. The threads, held by a fixed thread guide, run through this, shifting of the bobbins at a relatively acute angle onto the empty bobbin. Only then is he back from the traversing thread guide recorded (DT-PS 1 100 868). In a winding machine with fixed Bobbins, but with a traversing thread guide changing over from the full to the empty bobbin (for example according to FR-PS 935 388) this principle does not apply. The known winding machine with movable bobbins is also not suitable for disc bobbins, because the stationary long one used to drive both coil bodies Do not attack the distribution roller, as is necessary for a uniform winding speed, on the outside diameter of the winding could.

The invention is based on the problem of creating a winding machine of the type mentioned at the outset in which the transfer of the thread from the full to the empty bobbin without difficulty and quickly with the least possible thread loss is.

The invention solves the problem in that a traversing thread guide between and coil insertable auxiliary thread guide is arranged, the thread in the effective position when moving the Traversing thread guide from the full bobbin to the empty bobbin leads to running onto the full 3 bobbin until the traversing thread guide has reached a predetermined position in front of the empty bobbin. The auxiliary thread guide thus holds the thread during the changeover the traversing from the full to the empty bobbin at the end of the full bobbin adjacent to the empty bobbin until the Shifting process of the traversing thread guide at least essentially

7605262 12/23/76

has ended. This ensures that the thread in one very acute angle is folded safely and without difficulty onto the empty bobbin. After winding the thread on the empty spool3 & the auxiliary thread guide is brought out of action again and the disgust is continued in the usual way.

The auxiliary thread guide is preferably in the area between the radial planes through the adjacent end points of the traversing movements of the traversing thread guide assigned to the two bobbins into the through the traversing and transfer movements certain thread planes between traversing thread guide and bobbins can be pivoted.

In order to make the angle of the thread to the bobbin axis as small as possible, the invention is an advantageous further embodiment the machine is designed so that the auxiliary thread guide only releases the thread when the traversing thread guide is on the of the end of the empty bobbin facing away from the full bobbin. A further improvement can be achieved when changing over from the traversing thread guide is given a higher than normal traversing speed from the full to the empty bobbin.

In order to facilitate the winding of the thread onto the empty bobbin, there remains according to an advantageous further embodiment of the invention the higher speed of the traversing thread guide when changing from the full to the empty bobbin over more than one Maintain the traversing stroke over the length of the bobbin.

The invention is explained in more detail using an exemplary embodiment shown in the drawing. It shows:

Fig. 1 is a schematic view of a winding machine according to the invention and

Fig. 2 is a side view of the winding machine according to Fig, I.

7605262 23.1176

On the foundation 5 are held on one in two bearing blocks 6 Shaft 7 rockers 8 and 9 individually pivoted, each of which has a coil 10 and 11 at its free ends. Every coil is one in bearings 12 and 13, which are also on the foundation 5 are attached, assigned to mounted distribution roller 14 and 15, respectively. A hydraulic piston 16 engages each rocker arm 8 or 9 (Figure 2) of a servo motor i? on, by means of which the rockers from the working position shown in Figure 2, in which they are attached to the associated Abut the distribution roller, can be brought into the position shown in phantom, in which they are from the associated distribution roller are lifted. The drive of the distribution rollers 14 and 15 takes place via the drive shaft 18 by an electric motor, not shown here.

The incoming thread 19 to be wound up is guided over guide rollers 20. The dancer arm 21 is used to regulate the thread tension in a manner known per se. The thread is guided to the respective bobbin via a traversing thread guide 22 reciprocating over the bobbin stroke A or B and wound there. Between the traversing thread guide 22 and the bobbins, an auxiliary thread guide 23 is arranged, which can be pivoted into the thread plane determined by the traversing when the thread is being transferred from the full to the empty bobbin around the shaft 2k . In the example shown, the coil 11 is just fully wound. During the winding on this bobbin 11, the traversing thread guide moved back and forth in the area denoted by B. When the thread change is initiated from the full to the empty bobbin, the traversing thread guide 22 is transferred to the empty bobbin area A. Before the transfer, the auxiliary thread guide 23 is swiveled into the position shown and holds the thread until the traversing thread guide 22 has reached the end point in the traversing area A shown in FIG. At this moment the auxiliary thread guide 23 is pivoted back again and releases the thread. This has the effect that the thread can switch from the full to the empty bobbin at a very acute angle β.

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The changeover is preferably carried out at a higher than normal traversing speed. Also for wrapping on the empty one The traversing thread guide should move faster than usual over at least one stroke A or B on the bobbin. After wrapping the thread is severed between the two bobbins by means of a pivotable knife 25, so that the full bobbin is completely can be swiveled away from the associated distribution roller and exchanged for a new empty bobbin.

Heidenheim, 02/12/76
JB / Srö

7605262 12/23/76

Claims (2)

Protection claims 1. Winding machine for winding threads alternately one after the other on axially side-by-side, each drivable for itself Bobbins, with a traversing thread guide that traverses in front of each winding bobbin, and with a device to move the traversing thread guide from the Area 5 one coil to that of the other, characterized that an auxiliary thread guide (2 ^) which can be introduced between the traversing thread guide (22) and the bobbin (10, 11) is arranged. 2. Winding machine according to claim 1, characterized in that the auxiliary thread guide (23) in the area (A or 3) between the radial planes through the adjacent end points of the traversing movements of the traversing thread guide (22) assigned to the two bobbins (iO, 11J) ± L · the through the traversing and transfer movements of certain pad planes between traversing thread guide (22) and bobbins (10, 11) can be pivoted. Heidenheim, 09/06/76 JB / Srö 7605262 12/23/76