EP0287788A1 - Method and device for supplying a ring-spinning machine with feeding bobbins - Google Patents

Abstract

The invention relates to a method and a device for loading a ring spinning machine with supply spools 1, 1 ', 1 ", with at least two spools 2, 2', 2 ', 2" running along the machine sides and running at work stations, 4, 5 and another row of coils that can be extended with empty sleeves and retracted with full bobbins. According to the invention, when the coils of an expiring row of coils run out, the outgoing fuses are replaced by fuses of the further row of coils retracted with full coils, this row of coils thus becoming the expiring row of coils, while the expired row of coils now extends as an additional row of coils with empty cores and retracted with full coils is, this changing process is repeated in turn between all rows of coils 3, 4, 5.

Description

The invention relates to a method and a device for loading a ring spinning machine with supply spools, with at least two extending along each of the machine sides. Rectangular spool rows delivering at workplaces and a further spool row that can be retracted with empty sleeves and retracted with full spools.

Such a method is already known as prior art, in which two rows of coils are arranged in one horizontal plane and a third row of coils in another horizontal plane above it (European patent application 0124662). The two rows of coils lying next to each other in the same horizontal plane serve to supply the ring spinning machine with fuses to the work stations, whereas the third row of coils is always equipped with new, full supply coils, which are transferred to the two lower rows of coils if necessary. This known method and the device carrying out this method are correspondingly complicated and require a number of movement sequences in order to always have full supply spools available.

In contrast, the object of the present invention is to design a method and a device of the type mentioned at the outset in such a way that it is ensured without great design effort that the corresponding workstations of a ring spinning machine are always supplied with full supply spools.

This object is achieved in that when the bobbins of a running row of coils expire, the outgoing fuses are replaced by fuses of the further row of coils that are retracted with full bobbins, and this row of coils thus becomes a row of coils that are running out, while the expired row of coils as an additional row of coils with empty tubes -and is run in with full bobbins and that this changing process is repeated in turn between all rows of bobbins.

This results in the advantage that the individual rows of coils no longer have to be interchanged, but instead are stationary at the respective work station, so that complicated switching devices and correspondingly designed work elements are dispensed with.

In order to create optimal drainage options for the fuses, in a further embodiment of the invention the further coil row can be aligned as a running coil row by longitudinal displacement to the operated work stations. It is also advantageous. in the interest of a continuous workflow that the idling of the running coil rows takes place out of phase. This means that there are always differently filled rows of coils. thereby avoiding undesired idling that interrupts the machine's workflow.

The device for carrying out the method can be designed in such a way that all coil rows can be moved in and out independently of one another and guide elements for the running fuses are arranged outside the movement paths of the coil rows. In order to facilitate the functional arrangement of the fuses of the full supply spools, the guide elements can, for example, be designed like hooks and attached to telescopic hanging rods. This gives you quick access to the guide elements when you put the fuse on it correctly.

In a further embodiment of the invention there is also the possibility that the guide elements of the vertically movable group are arranged on swivel arms arranged in the lower region of a row of coils.

In order to be able to carry out the alignment of the coil row when it is set up as a running coil row by longitudinal displacement to the operated work stations, according to the invention each coil row can be connected to a control device for adjustment by a spindle pitch relative to the associated sliver guide funnels. This control device can be designed to be mechanically, electrically or pressurized with pressure medium.

As an alternative to three rows of coils, in a further embodiment of the invention there is also the possibility that, for example, four rows of coils are provided, wherein either the four rows of coils can be arranged next to one another or two rows of coils can be arranged one above the other.

If rows of coils are arranged in the gate at different heights, upward and / or downward slopes from the normal height of the feed and discharge rails to the rails arranged in other heights must be provided in the gate. If these incline and / or descent sections extend into the gate due to lack of space, the sections of the incline and / or descent sections located in the area of the gate are designed according to the invention as height-adjustable rail sections.

• Fig. 1 eine schematische Seitenansicht dreier Spulenreihen oberhalb eines Streckwerks einer Ringspinnmaschine;
• Fig. 2 eine andere Ausführungsmöglichkeit der Erfindung in Seitenansicht:
• Fig. 3 eine weitere Ausführungsform der Erfindung mit höhenversetzten Vorlagespulen;
• Fig. 4 eine schematisch Darstellung eines höhenbeweglichen Führungselementes in Seitenansicht;
• Fig. 5 eine weitere Ausführungsmöglichkeit des Führungselementes in Seitenansicht;
• Fig. 6 I - XII eine schematische Darstellung der Verstellmöglichkeit um eine Spindelteilung gegenüber den zugeordneten Luntenführungstrichtern jeder der drei Spulenreihen;
• Fig. 7 eine Ausführungsmöglichkeit der Erfindung mit vier nebeneinander angeordneten Spulenreihen;
• Fig. 8 eine weitere Ausführungsmöglichkeit der Erfindung mit jeweils zwei übereinander angeordneten Spulenreihen;
• Fig. 9 eine schematische Seitenansicht einer Transporteinrichtung zu den Spulenreihen;
• Fig. 10 eine schematische Seitenansicht einer Weiche;
• Fig. 11 eine Draufsicht auf die Ausführungsform nach Fig. 10.

The invention is described below with reference to exemplary embodiments shown in the drawing. The drawing shows:

• Figure 1 is a schematic side view of three rows of spools above a drafting unit of a ring spinning machine.
• 2 shows another possible embodiment of the invention in side view:
• 3 shows a further embodiment of the invention with height-offset supply spools;
• Figure 4 is a schematic representation of a vertically movable guide element in side view.
• 5 shows a further possible embodiment of the guide element in a side view;
• Fig. 6 I - XII is a schematic representation of the adjustment option by a spindle pitch in relation to the associated sliver guide funnels of each of the three coil rows;
• 7 shows an embodiment of the invention with four rows of coils arranged side by side;
• 8 shows a further embodiment of the invention, each with two rows of coils arranged one above the other;
• 9 shows a schematic side view of a transport device for the coil rows;
• Fig. 10 is a schematic side view of a switch;
• 11 is a top view of the embodiment of FIG. 10.

According to Figure 1, three rows of coils 3, 4, 5 are arranged in the same horizontal plane. Feed coils 1. 1 ', 1 "hang on these coil rows, their fuses 2, 2', 2" run over guide elements 7, 8, 9, 10 to match guide funnels 12 of a schematically illustrated drafting system 11 of a ring spinning machine, not shown in detail.

As can be seen from FIG. 1, the guide elements 7, 8, 9 and 10 for the matches 2, 2 ', 2 "are arranged in such a way that each of the rows of coils 3, 4, 5 extend or slide along rails 21, 22, 23 can be retracted without being impaired by the match.

Rollers 24, 25, 26 run on the rails 21, 22, 23, to which the corresponding supply spools 1, 1 ', 1 "are fastened via hanging brackets 27, 28, 29.

As can be seen from FIG. 1, the guide elements 7 and 9 serve for the course of the fuse 2 of the supply spool 1; the guide elements 8 and 10 serve for the course of the matches 2 'and 2 "to the corresponding match guide funnels 12. This arrangement is characterized by a small space requirement.

In the embodiment according to FIG. 2, only guide elements 8 'are provided, which are located in the space between the coil rows 4 and 5. In this embodiment, the slivers 2 of the supply coils 1 of the coil row 3 run directly to the corresponding sliver guide funnel 12, which thus takes over the function of a guide element. Here, the coil 1 must be moved further from the coil 1 '. The resulting larger space requirement is compensated for by the elimination of guide elements for the fuses 2 of the coil row 3.

In order to simplify the functional manual insertion of the matches 2 'and 2 "via the guide elements 8', in the embodiment according to FIG. 2 the guide element 8 'can be arranged on a swivel arm 20. This swivel arm 20 can be rotated about its pivot point 39, which is provided below the coil row 5, for example counterclockwise in the lower region 8 ". This gives good access to the guide element and thus a good insertion possibility for the corresponding fuses 2 'and 2 ". After this work process has been carried out. - The swivel arm 20 swings back into its working position, that is, into its position in FIG. 2 Upper layer shown, so that the entire arrangement is functional again.

In the exemplary embodiment according to FIG. 3, two coil rows 4 'and 5' are arranged in a horizontal plane, whereas the third coil row 3 'is located in another horizontal plane below. Again, guide elements 7, 8, 9, 10 are provided in order to guide the corresponding slivers 2, 2 ', 2 "to the respective sliver guide funnel 12 in such a way that the individual coil rows 3', 4 ', 5' are moved in and out This arrangement is characterized by a particularly small space requirement in width, but requires rails 21 at a different height than those of the coil rows 4 'and 5'.

The workflow here is such that when the bobbins of a running bobbin row run out, the bunching fuses 2, 2 ', 2 "are replaced by the bunching of the further bobbin row retracted with full bobbins and this bobbin row thus becomes the bobbin bobbin running, while the expired bobbin row as now a further row of coils with empty sleeves is extended and retracted with full bobbins, this alternating process being repeated between all rows of bobbins. Here, the running bobbin rows can be emptied out of phase. In the exemplary embodiments shown in FIGS 5 or 5 'have run most empty, so that after they have run empty, this coil row 5 or 5' is moved out of the work area and replaced by a new coil row 5 "provided with full supply coils 1".

In the embodiment according to FIG. 2, the guide elements 8 'are between the bobbins hen 4 and 5 each attached to a swivel arm 20.

On the other hand, in a further embodiment of the invention, there is also the possibility of arranging the corresponding guide elements on telescopic hanging rods. 4, such a guide element 7 'is fastened to a rod 13, on which a handle 19 is located in the lower region. This rod 13 is connected to a piston rod 15 which runs within a cylinder 14 in which a spring 16 is located. When pulling on the handle 13, the hook-like guide element 7 'can be moved downward from the working position into the insertion position for the corresponding fuse, pressure medium being sucked into the cylinder 14 via a schematically illustrated check valve 17. After the corresponding fuse has been inserted, the handle 19 is released by the operator, the spring 16 moving the rod 13 upward into the working position for the guide element 7 'and the pressure medium emerging from the piston 14 again via a schematically illustrated throttle 18. This constructive design option also makes work easier for the operator when the fuse is properly inserted into the guide element 7 '.

Fig. 5 shows an embodiment of a guide element 9 or 9 ', which is only arranged on a rod 13 which is suspended above the ring spinning machine for arrangement at the locations 9 and 9' shown at the bottom left in Figures 1 and 3. In the embodiment according to FIG. 3, in the embodiment according to FIG. 1, the lower guide element 9, 9 'also has the task of preventing the running slub end from falling onto the drafting system 11. In this embodiment, in contrast to the guide element 7 'according to FIG. 4, the guide element 9 or 9' has an upper hook-shaped area 40 in order to be able to perform the aforementioned functions.

In Fig. 6 in the work phases to XII the workflow when changing three rows of coils is shown schematically in plan view. As can be seen, the coil row C (analog coil row 3 according to FIGS. 1 to 3) has run empty, so that sleeves 6 are present here. This coil row C is discharged in the direction of the arrow. The spool rows A and B (analog spool row 4 and spool row 5 according to the embodiments according to FIGS. 1 to 3) supply fuses to the roving guide funnels 12 of the ring spinning machine.

After working position 11, coil row C is replaced by full supply coils; the coil row A consists of almost empty sleeves 6 '; the coil row B has half expired. As can be seen, the respective slits of the coil rows A and B assume a different angular position to the sliver guide funnels 12 than in the working position I.

After working position 111, the coil row A has run empty, so that the sleeves 6 of the coil row A are removed. Now the respective slits of the coil row C are introduced into the corresponding sliver guide funnels 12. whereby according to working position IV, the coil row A is again equipped with full supply coils. In this working position, the sleeves 6 "of the coil row B are shortly before idling, whereby after the working position V and VI these sleeves 6" are replaced by full supply coils, and in these positions the coil rows A and C lead the corresponding fuses to the fuse guide funnels .

As can be seen, an offset of the coil rows A, B and C relative to the positions a, b, a ', b' and a "and b" of the sliver guide funnels 12 is provided by the amount + and -x, in order to always provide a favorable one To achieve the angular position of the running fuses with respect to the position of the match funnels. While in the working position according to I the fuses of the coil row A each run into the guide funnels 12 in positions a, a 'and a ", in the working position according to V there is an entry into positions b, b', b" while in this position the coil row C works in the openings a, a ', a "and the sleeves 6" of the coil row B are exchanged.

In the working position according to VII, the coil row B is shifted by the amount a -x; the spool rows A and B provide fuses, whereas the sleeves 6 'of the spool row C are empty and are replaced by full supply spools after working position VIII. In the working positions IX and X, the coil row A has run empty and is replaced by full supply coils, whereby in the working positions XI and XII there is an offset of the supply coils of the coil row A by the amount a -x. to again achieve a favorable insertion angle for the fuses of the full or half-full supply spools.

1 to 6, 3 rows of coils were used in each of the exemplary embodiments. Instead, there is also the possibility of providing four rows of coils 30, 31, 32, 33 according to FIGS. 7 and 8. 7, these rows of coils lie in a horizontal plane, with again guide elements 7 and 8 or 9 and 10 are provided. As can be seen, the running coil rows 30 to 33 are also emptied out of phase; in the position shown in FIG. 7, the coil row 31 has almost expired.

8 there is also the possibility. two rows of coils 30 and 31 or 32 'and 33 'to be arranged one above the other and to be guided accordingly via guide elements to the guide funnels 12 in front of the entrance of the drafting system 11 of a ring spinning machine, not shown in any more detail.

9 to 11 is a transport system for the on or. Removal of full supply spools or empty tubes to the workplaces of the ring spinning machine is shown. As can be seen, a rail 36 can be connected to a rail 34 via a height-adjustable rail section 35 which can be rotated about a pivot point 38 and can be acted upon by a piston-cylinder unit 37. The full supply spools are initially on the rail 21 'according to FIG. 9 and can, if necessary, be transported to the work station above the ring spinning machine via the rail 34 and the height-adjustable rail section 35 which connects to the rail 36. This design option occurs when rows of coils are arranged in the gate at different heights. Here, from the normal height of the feed and discharge rails, incline and / or descent to the rails arranged in other heights must be provided in the gate. In this case, there is the possibility of using height-adjustable rail sections 35 according to the embodiment according to FIGS. 9 to 11. In any case, there is an automatic transport system, with control devices ensuring that full supply spools are always closed and empty sleeves with respect to the right time the rows of coils are discharged.

Claims (21)

1. A method for loading a ring spinning machine with supply bobbins, with at least two spool rows extending along each of the machine side and supplying runners at work stations, and a further row of bobbins that can be retracted with empty bobbins and filled with full bobbins, characterized in that at the end the bobbins (1, 1 ', 1 ") of a running coil row (3, 4, 5; 30, 31, 32, 33) the running rags (2, 2', 2 ^* ) by the roving of the further row of bobbins which are retracted with full bobbins are replaced and this row of coils thus becomes the running row of coils, while the expired row of coils is now extended and retracted as an additional row of coils with empty sleeves (6, 6 ', 6 ") and with full bobbins and that this changing process between all rows of coils is repeated in turn. 2. The method according to claim 1, characterized in that the further row of coils is aligned when they are set as a running row of coils by longitudinal displacement to the operated workplaces (Fig. 5). 3. The method according to claim 1 and 2, characterized in that the idling of the running coil rows takes place out of phase. 4. Device for carrying out the method according to claim 1, characterized in that all rows of coils (3, 4, 5) independently of each other retractable and extendable and guide elements (7, 8, 9, 10) for the running fuses (2, 2 ' , 2 _" ) are arranged outside the movement paths of the coil rows (3, 4, 5). 5. The device according to claim 4, with three juxtaposed rows of coils, characterized in that the rows of coils (3, 4, 5) lie in the same horizontal plane (Fig. 1. Fig. 2). 6. The device according to claim 5, characterized in that the guide elements (7, 8, 9, 10) are arranged in and below the spaces between the rows of coils (3, 4, 5). 7. The device according to claim 5, characterized in that guide elements (8 ') are arranged in an intermediate space between two rows of coils (4, 5) and that underlying sliver guide funnels (12) form guide elements for the third row of coils (3) (Fig. 2) . 8. Device according to one of the preceding claims, characterized in that at least one of the group of hook-shaped guide elements (7 ') arranged in the spaces between the rows of coils (3, 4, 5) is movable in height. 9. The device according to claim 8, characterized in that the guide elements (7 ') of the vertically movable group are arranged on telescopic, hanging rods (13) (Fig. 4). 10. The device according to claim 9, characterized in that each rod (13) is designed to be pressurized (Fig. 4). 11. The device according to claim 8, characterized in that the guide elements (8 ') of the vertically movable group on the lower region of a coil row (5) arranged pivot arms (20) are arranged (Fig. 2). 12. The apparatus for performing the method according to claim 1, with three rows of coils, characterized in that two rows of coils (4 ', 5') in the same and the third row of coils (3 ') lie in a horizontal plane underneath (Fig. 3) . 13. The apparatus of claim 9, 10 and 12, characterized in that in the space between the two, in the same hori zonal plane lying coil rows (4 ', 5') the telescopic rods (13) are arranged for the guide elements. 14. Device according to one of the preceding claims, characterized in that each coil row is connected to a control device for adjustment by a spindle pitch relative to the associated sliver guide funnel (12). 15. The apparatus according to claim 14, characterized in that the control device is designed mechanically, electrically or pressurized. 16. The apparatus for performing the method according to claim 1, characterized in that four rows of coils (30, 31, 32, 33) are provided. 17. The apparatus according to claim 16, characterized in that the four rows of coils are arranged side by side (Fig. 7). 18. The apparatus according to claim 16, characterized in that two rows of coils are arranged one above the other (Fig. 8). 19. Device according to one of the preceding claims, characterized in that rails (21, 22, 23) of the coil rows can be connected to feed and discharge elements (Fig. 9). 20. The apparatus according to claim 19, characterized in that the supply and discharge elements are each designed as a rail (34) and can be connected to the respective rail of the coil row via a switch. 21. The apparatus according to claim 20, characterized in that the supply and discharge elements are connected via height-adjustable rail sections (35) with the rails of the coil rows (Fig. 10).

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