EP0688890B1 - Device for splitting the warp on a warping machine - Google Patents

Description

The invention relates to a device for thread division on a warping machine according to the preamble of claim 1. Such devices are used by a creel unwound thread bandage before winding onto the Open warping drum in such a way that cross cords or others Sub-elements for specifying the thread order or Formation of thread groups for the subsequent finishing process can be inserted.

With simple crosshairs to set the thread order the entire thread group is brought together on one level, each with the help of a cross reed second thread deflected downwards or upwards to form the subject becomes. With multiple crosshairs for the Mediation process, subject formation is more complicated as individual Thread groups according to the individual floors on Coil creel need to be disconnected. The present invention relates in particular to a device for the multiple crosshairs to form the so-called Sizing division.

CH-A-370 363 is a genre comparable Appeared device in which the partial rods with Exception of the top and the bottom, in the sub-rod holder can be lowered together and lifted individually, whereby for multiple crosshairs, the distance can be enlarged between two successive bars is. A ratchet mechanism is used to lift the partial rods individually, which has to be operated manually. After this Insert the last part of the cord again their starting position resettable, in which they are all among themselves have the same distances. Since the relative position of the top and bottom part of the bar is never changed, the angular spectrum of the thread family as a whole always remains equal. Within this spectrum, however, are moving through the individual rods from top to bottom the individual Compartments open. This has the disadvantage that each Compartment opens in a different relative position, which is an automatic Partial cord insertion considerably more difficult. On the other hand the size of the compartment opening is relatively narrow. In the known device, the partial cords are inserted manually.

A device is known from CH-A-679 867 in which the compartment opening for the size division for all thread levels in the same place. To For this purpose, several are used instead of the partial bars in a row arranged shafts used, which are individually vertical are slidably mounted. Any shaft can do it lower or raise a certain thread group. This kind however, thread division is relatively complex since everyone single shaft must be driven. Every thread goes through a relatively tight eyelet in its shaft strand and must several shaft levels with the strands of the Neighboring threads happen, which favors and increases thread wear insufficient production speed.

It is therefore an object of the invention to provide a device for to create the kind mentioned above, which in the simplest A sufficiently large subject education and always the same Position of the individual compartments ensures that the insertion the partial cords can be automated better. This According to the invention, the object is achieved with a device which has the features in claims 1 and 7, respectively.

In contrast to the known device with slidable Partial bars can be the relative position of the entire partial bar grate be changed by means of the lifting device, in such a way that that the partial bar rust from the original working position is lifted out. There is a shift by the same amount also possible downwards, so that overall much larger Compartments can be opened than with the known ones Devices. The locking device enables the individual Release of the partial rods, with upper and lower guide rods the compartment size can be determined after the bar grate can. These guide rods can also serve the relative position limit the individual subjects uniformly.

A particularly advantageous way of working results when in Thread running direction after the bar grate one upper and one each lower horizontal guide rod for the upper and lower position limitation the thread sheet is arranged and if the lowest Partial bar in the upper operating position approximately at the level of upper guide rod and if the uppermost part in the lower operating position approximately at the level of the lower guide rod lies. The known guide rods are synchronous with each other Slidable to or from each other, as they are still be used to operate the thread bandage of the cross reed on a common level. By appropriate adjustment of these guide rods can therefore the maximum compartment size can also be set.

The stop for the partial bar grate in the lower operating position is preferably carried out directly by the lifting device educated. But it would be easily conceivable, the attack to train independently of the lifting device, namely either as a fixed or adjustable stop.

The locking device is advantageous with a locking element with which the bottom bar in the top Operating position can be locked or released. This arrangement simplifies the mechanical effort and improves the Operational safety. But it would also be conceivable that everyone individual sub-staff is assigned its own lock, which for example, could also work electromagnetically.

A particularly simple locking device is by a rotatable slotted disc formed with a slit which engages in the plane of movement of the partial rods when rotating, with the slot down the bottom part of the bar pushes while the overlying bars are locked will. In a neutral, disengaged position, the Partial bars for lifting the partial bar grate on the slotted disc be moved past. Instead of the slotted disc would be also other, sequentially working ratchet such. B. a Maltese cross gear or an eccentric disc possible.

The lifting device could be operated manually with a lever or with operated by a crank. However, it is preferred driven by its own drive motor, so that the lifting movement together with an insertion machine for the partial cords can be controlled. The same applies to the Locking device, which also has its own drive motor is provided.

Of course, it would also be conceivable for the whole sub-process from bottom to top. For this purpose the entire bar grate by means of a lowering device can be lowered from a neutral middle position into a lower operating position be. Then the partial bars would be with a Lifting device, e.g. through a paternoster drive, into a upper operating position slidable and there by means of a holding device fixable. It would also be important with this solution that the upper and lower operating positions are selected so that a large subject education with a constant subject situation is made possible.

Figur 1

eine schematische Darstellung einer Schäranlage,

Figur 2

eine Seitenansicht auf die erfindungsgemäss Vorrichtung mit dem Teilstabrost in der neutralen Mittellage,

Figur 3

die Vorrichtung gemäss Figur 2 während der Fachbildung mit einem Teil der Teilstäbe in der oberen Betriebslage,

Figur 4

die Vorrichtung gemäss Figur 3 bei der letzten Fachbildung mit allen Teilstäben in der unteren Betriebslage, und

Figur 5

eine Ansicht der Vorrichtung in Fadenlaufrichtung gesehen.

An embodiment is shown in the drawings and will be described in more detail below. Show it:

Figure 1

a schematic representation of a warping plant,

Figure 2

2 shows a side view of the device according to the invention with the partial rod grate in the neutral central position,

Figure 3

2 the device according to FIG. 2 during the formation of the compartment with part of the partial rods in the upper operating position,

Figure 4

the device according to Figure 3 in the last compartment formation with all sub-bars in the lower operating position, and

Figure 5

a view of the device seen in the thread running direction.

Figure 1 shows the overall structure of a warping plant 1 consisting from a warping machine 2 and from a creel 3. Das Coil gate 3 is on different floors and in different Rows equipped with coils 4, of which in the direction of the arrow a threads 5 drawn off and on a warping drum 9 in Sections to be wound into a warp 8. After this Finishing the warp wrap the threads on one Warp beam 14 rearranged.

The individual thread levels are in one by the partial rods 7 Part rod holder 6 separated from each other. After the partial bars pass through the threads 5 in a manner known per se Kreuzriet 10 and a sash 11.

Figure 2 now shows the area of the rod holder 6 and Kreuzriets 10 on a somewhat enlarged scale. The partial rod holder consists essentially of side guide rails 16, in which the partial rod grate 19 consisting of the Partial bars 7a to 7e is vertically displaceable. The partial bars lie on a stop 21 designed as a gripper a lifting device 22. The lifting device consists of a Electric motor 23, whose gear engages in a lifting spindle 24.

In Figure 2, the bar grate 19 is in a neutral central position M, in which the threads 5 without deflection in one Sector with the angle α led to a deflecting roller 20 will. An upper guide rod 13 and a lower guide rod 17 are located outside this sector. The Kreuzriet 10, which has no function here in the size division exercises, is also in a neutral middle position. The warping blade 11 is in the operating position on the deflection roller 20 approached.

In addition to the vertical guide rails 16 is at least laterally a slotted disc 15 (Figure 5) arranged around an axis can be rotated parallel to the partial bars. The Slotted disc has a radially running towards the center Slot 25 and a straight section 26. The slot washer is arranged in such a way that in the figure 2 shown rest position with its straight section 26 Moving the bar grate 19 in the guide rails 16 allowed. On the other hand, it reaches into the plane of movement when it is turned out of the rod grate 19. In order to tilt the partial rods in the Preventing guide rails 16 is preferably on everyone One slotted disc is arranged on each side of the partial rods.

For the specialist training for inserting the partial cords 12 3, the guide rods 13 and 17 are slightly moved together, so that the coulter is on a slightly smaller sector β is limited. At the same time the warping blade 11 in Withdrawn towards the creel because of the partial cords evidently be inserted behind the warping blade have to. With the help of the lifting device 22, the whole Bar grate 19 raised until the bottom part bar 7e is about the same height as the upper guide rod 13. Obviously, all threads are shown until on the lowest thread level, on the individual guide rods deflected downwards.

When this upper operating position O is reached, the slotted disc 15 swung in, so that the bar grate is held there becomes. The stop 21 can now be lowered again to a position in which it has a lower operating position U Are defined. Thereupon the slotted disc 15 oscillates before and back, each time a partial rod from the slot 25 is captured and so far down until it is gravity falls down in the guide rails 16. At the same time the slotted disc holds back the partial bars above.

In Figure 3, the lower part of the rod 7e is already in the lower Operating situation U fallen. The next sub-bar 7d is from the Slotted disc just grasped and led down, whereby a partial cord 12b is inserted in the thread compartment 18. A first one Partial cord 12a was already in the previous sequence inserted. Between the individual sequences must also the thread assembly in the direction of the arrow b a tensioning movement To run. This tensioning movement promotes the on the guide rods 13 and 17 formed opening despite possible Fiber entanglement safely to sub-area 18 and it brings the partial cords 12 to a work-related distance position in the chain 8.

It can be seen from FIG. 4 that the lower operating position U is set so that the uppermost part bar 7a approximately on the same height as the lower guide rod 17. Between The first and last sequences become the ones that limit the subject However, threads always on the guide rods 13 and 17 deflected so that the thread compartment always the same relative position occupies. After inserting the last part of the cord the slotted disc 15 is turned back to the rest position, so that the bar grate 19 in again by means of the lifting device the middle position M can be retracted. In this In the middle position, the threads 5 pass through the rod grating without being looped with production speed.

Figure 5 shows the lateral arrangement of the gear for Drive of the lifting device and the slotted discs. The two spindles 24 are driven by the common motor 23, and the slotted disks can via a pressure medium cylinder 27 can be pivoted synchronously.

Claims (7)

1. Device for the yarn division on a sectional warping machine (2) with a lease rod holder (6) in which a plurality of horizontal lease rods (7) are mounted to be able to displace vertically, with the lease rods forming a rod grid (19) on which the distance between adjacent lease rods can be sequentially enlarged in order to form a shed on a yarn warp (5) passing through said rod grid (19), characterized in that the entire rod grid can be lifted out of a neutral middle position (M) into an upper operating position (O) by means of a lifting device (22), that a mechanical stop (21) is arranged for holding the rod grid (19) in a lower operating position (U) and that, by means of a locking device (15), the lease rods (7) are able to be fixed in the upper operating position (O) and are sequentially able to be released in order to displace into the lower operating position (U).
2. Device according to claim 1, characterized in that an upper and a lower guide rod (13, 17), for defining in each case the upper and lower position of the yarn warp, is arranged after the rod grid (19) in the direction (a) of the yarn run, that in the upper operating position (O), the lowermost lease rod (7e) lies approximately at the height of the upper guide rod (13), and in the lower operating position (U) the uppermost lease rod (7a) lies approximately at the height of the lower guide rod (17).
3. Device according to claim 1 or 2, characterized in that the mechanical stop (21) is formed by the lowered lifting device (22).
4. Device according to one of the claims 1 to 3, characterized in that the locking device possesses a locking element (15) with which, in the upper operating position (O), the respective lowermost lease rod is able to be locked or released.
5. Device according to claim 4, characterized in that the locking device is a rotatable slotted disc (15) with a slot (25), said slotted disc engaging on rotation in the plane of movement of the lease rods (7a to 7e), with the slot displacing the respective lowermost lease rod downwards, while the lease rods lying above are locked.
6. Device according to one of the claims 1 to 5, characterized in that the lifting device (22) is able to be driven by means of its own drive motor.
7. Device for yarn division on a sectional warping machine (2) with a lease rod holder (6) in which a plurality of horizontal lease rods (7) are mounted to be able to displace vertically, with the lease rods forming a rod grid (19) on which the distance between adjacent lease rods can be sequentially enlarged in order to form a shed on a yarn warp (5) passing through said rod grid, characterized in that the entire rod grid (19) can be lowered out of a neutral middle position (M) into a lower operating position by means of a lowering device, that the lease rods (7) are able to be displaced sequentially into an upper working position by means of a lifting device, and that the lease rods are able to be fixed in the upper operating position by means of a holding device.

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