EP0062063B1 - Spinning frame, particularly ring spinning frame - Google Patents

Abstract

The ring spinning frame comprises a main structure (1) which supports a box frame (11) on which disc-shaped magazines (14) may be detachably and loosely placed in a row. These magazines have on their underside a multiplicity of suspension devices (16) for attaching the bobbins (10). The frame (11) also serves as a rail configuration for a carriage (15) capable, by means of appropriate lifting devices (17, 18), during its travel from one end of the spinning frame to the other, to pick up at least one disc-shaped magazine (14) with empty bobbins (10) and to deposit at that place a disc-shaped magazine (14) with full bobbins (10). These measures enable the change of bobbins on the spinning frame to be fully automated.

Description

The present invention relates to a spinning machine, in particular a ring spinning machine, with a plurality of spinning stations arranged in a row, each of which is assigned at least one roving bobbin holder, a number of roving bobbin holders for adjacent spinning stations being arranged in a group on a mobile magazine.

It is generally known that the roving bobbin change still takes place by hand on spinning machines and in particular on ring spinning machines. For this, the full roving bobbins are placed in containers near the machine in question and then individually replaced with empty bobbin tubes. For this purpose, on an upper horizontal frame of the machine there are a number of roving bobbin supports corresponding to the spinning positions in the form of self-locking hanging devices, onto which the roving bobbins are pressed from below. If you consider the high weight of the roving bobbins on the one hand, which is on average 2.5 kg today, but can reach up to 5 kg in the future, but also the large number of up to 400 spinning positions per machine side that is common today, it becomes clear which one Except for a certain monotony of such work, the operating personnel are exposed to high physical stress.

Such physical stress can be alleviated somewhat if, as described and shown in German Auslegeschrift No. 1 102 019, the roving bobbins are arranged on such a mobile magazine that the magazine for changing from empty to full roving bobbins from the operating area in the Ring spinning machine can be moved into a gear area between the ring spinning machines. The operator can then lift the full roving bobbins in a slightly less strenuous vertical rather than an obliquely upward fashion.

A German Offenlegungsschrift No. 1 760486 further shows an automatic loading and emptying device for bobbin wagons for draw twisting machines.

In this case, full bobbin wagons are lifted from a lifting device provided on one end face of the stretch-twisting machine to a predetermined height above the twisting machine and brought into the intended operating position in the horizontal direction on the rails provided for this purpose by moving drag chains on the twisting machine.

The reverse procedure is used for wagons with empty bobbins.

The disadvantage of such a device is that individual carriages cannot be moved into or out of the operating position unless it is the last carriage introduced.

It is therefore an object of the present invention to automate the roving bobbin change. For this, it would be conceivable to imitate and mechanize the previously manual loading process by means of linear movement devices, which, however, should lead to prohibitively expensive expenditure. Thus, the present invention has the further object of achieving the automation of the roving bobbin change by means of a technically elegant concept which is acceptable from a cost point of view.

This is now made possible according to the invention in that the magazine can be grasped by a lifting mechanism and is lifted from this operating position from the operating position, in which the roving bobbins of the spinning machine serve as a thread pattern, to a position above the spinning machine, or is lowered from this position into the operating position , and that the hoist is part of a transport device which is arranged to be movable along the spinning machine.

These measures now allow the mobile magazines to be automatically loaded with full roving bobbins directly on the roving machine in order to then move these loaded magazines along the ring spinning machine and to automatically replace them at practically any point with corresponding magazines with empty roving bobbins.

An expedient embodiment of the present invention then consists in that the mobile magazines are designed as plates which can be inserted next to one another in a frame in at least one row.

It is also advantageous if the frame is designed as a rail arrangement for the transport device and extends above the machine, in which case the transport device is expediently a transport carriage or carriage with at least one lifting mechanism for receiving at least one magazine.

It is also advantageous if each hoist comprises a mounting plate for its temporary mechanical and / or electromagnetic connection with a plate-shaped magazine, in which case the transport carriage or carriage carries a control and drive unit which, on the one hand, on the hoists and, on the other hand, via a motor pinion acts on a rack.

A further embodiment of the arrangement also consists in that the frame forming the rail arrangement for the transport device continues over the end faces of the machine in transfer stations for magazines with full or empty roving bobbins, each transfer station then comprising a transfer linkage and a receiving frame for the magazines.

The entire automatic roving bobbin change is preferably programmed by one baren processor arrangement controlled.

• Fig. 1 in schematischer Darstellung eine Stirnansicht einer doppelseitigen Ringspinnmaschine mit den erfindungsgemäßen Mitteln für einen vollautomatischen Vorgarn-Spulenwechsel;
• Fig. 2 eine schematische Seitenansicht der Maschine gemäß Fig. 1;
• Fig. 3 ein Detail der Maschine gemäß Fig. 2, in größerem Maßstab; und
• Fig. 4 eine Draufsicht der Anordnung gemäß Fig. 3.

An example embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing. It shows

• Figure 1 is a schematic representation of an end view of a double-sided ring spinning machine with the inventive means for a fully automatic roving bobbin change.
• FIG. 2 shows a schematic side view of the machine according to FIG. 1;
• 3 shows a detail of the machine according to FIG. 2, on a larger scale; and
• 4 shows a top view of the arrangement according to FIG. 3.

The double-sided ring spinning machine illustrated in FIGS. 1 and 2 initially comprises, in a conventional design, a base frame 1 with a plurality of spinning stations 2 on both long sides of the machine, which, as FIG. 1 clearly shows, each interact with an anti-balloon ring and ring frame 3 and a rotor 4 to wind a spinning sleeve 5 with a yarn 9. This yarn 9 is drawn off from a roving bobbin 10, of which a plurality of roving bobbins are suspended above the base frame 1 in two rows on both sides and passed over a drafting system 6. The spinning sleeves 5 are automatically replaced by a so-called doffer device 7, which is attached to the base frame 1. A control and drive cabinet 8 is also arranged on at least one of the end faces of the machine (FIG. 2).

So far, the structure of a ring spinning machine is generally known and requires no further explanation here, since the components of the structure described above are not essential to the invention here.

For the automatic roving bobbin change according to the invention, a box-shaped frame 11 extends above the base frame 1 over its entire length and somewhat on both end faces, which is supported at intervals, partly via center supports 12 on the base frame 1 and partly via end supports 13 on the floor.

The lower frame supports serve for the removable and loose support of plates 14 which can be lined up on both sides of the machine and which form mobile magazines which can be removed or resumed essentially one after the other in the following manner.

These plate-shaped magazines 14 are provided on their underside with a plurality of self-locking hanging devices 16 of a known type, onto which the roving bobbins 10 can be attached in a known manner. Each plate-shaped magazine 14 carries in two rows one behind the other four hanging devices 16 for receiving eight roving bobbins 10 (FIG. 4). Of course, this arrangement can vary as desired.

In order now to be able to receive these plate-shaped magazines 14 for an automatic roving bobbin exchange or to set them down again - loaded with full roving bobbins 10, the box-shaped frame 11 also serves as a rail arrangement for a transport carriage or carriage 15 with lifting means to be described in more detail below, which transport carriage 15 is able to take at least one plate-shaped magazine 14 with empty roving bobbins on its way from one machine end to the other and to deposit a plate-shaped magazine 14 with full roving bobbins 10 at this point in order to then carry out the spinning process in the usual manner at the relevant spinning positions to be able to continue.

The transport carriage 15, which is suitable here to carry out a magazine change on both machine sides at the same time or with a time delay, has, in particular according to FIGS. 3 and 4, means for receiving two magazines 14 on each machine side. These means include a vertically movable lift 17 per magazine, for example in the form of a pneumatic cylinder with telescopic means, an electric linear motor or the like (not shown in detail), which lift 17 moves a lift plate 18 up or down. 3 and 4, this lift plate 18 can be placed flat on the top of the magazine 14 in question and the two parts can be connected to one another in order to be able to raise or lower the magazine 14 in question by lifting or lowering the lift plate 18.

The connection between the lift plate 18 and the magazine 14 can be made in many ways, for example by means of magnetic holding means or here by a type of bayonet lock with gripper pins 19 on the underside of the lift plate 18, which can rotatably engage in corresponding openings 20 in the magazine 14.

The transport carriage 15 is also supported by rollers 22 and 23 on an upper and a lower roller rail 24 and 25 which extend in the center of the box-shaped frame 11. Here, too, this roller guide of the transport carriage is only given as an example, with various other solutions being conceivable.

The controllable back and forth movement of the transport carriage 15 in the box-shaped frame 11 is served by a control and drive unit 21, which is fastened to the transport carriage 15 on the upper side thereof. This control and drive unit 21 interacts with a rack 27 via a motor pinion 26. This control and drive unit 21 receives its signals for the forward and return as well as for the actuation of the hoists 17, 18 or their locking means 19, 20 via busbars 28.

As can be seen in FIG. 2, the ring spinning machine described above merges at both ends into a transfer station 30 for magazines with full roving bobbins or a transfer station 40 for magazines with empty roving bobbins. These transfer stations are connected in a suitable, not shown manner with, for example, the roving machine in connection with the return transport of the empty roving spools of thread or for loading the magazines with full roving spools. For this purpose, each transfer station is equipped with a transfer linkage 31 or 41, which in a suitable manner brings the magazines 14 into a receiving frame 32, from where the magazines can be taken over by the transport trolley 15 or which lifts the magazines 14 out of a receiving frame 42 into the the magazines were removed from the trolley 15.

1 and 2 also show that a box pair 50 is supported on the box-shaped frame 11, on which the pneumatic machine fan 51 is slidably arranged.

In the operation of the ring spinning machine described above, suitable capacitive or optoelectric switching means 33 (FIG. 1) now monitor the state of the roving bobbins 10, expediently per sections determined by the magazines 14. An "empty" signal via line 34 to a processor arrangement 35 then sets the transport carriage 15 in motion via a coaxial line 36 connected to the busbar 28 until the latter has its free lifting mechanism 17, 18 above the magazine 14 with the empty roving bobbins 10 comes to a halt. This position is illustrated in the right part of FIG. 2.

The individual stopping positions of the transport vehicle 15 can be determined by suitable signal transmitters 37 (FIG. 1) and transmitted via a corresponding line 38 to the processor arrangement 35, which then transmits the necessary control signals via the coaxial line 36 to the control and drive unit 21 of the transport vehicle 15.

By suitable programming of the processor arrangement 35 and by means of corresponding signals via the coaxial line 36 to the control and drive unit 21 of the transport carriage 15, the transport carriage 15 can now first take up the magazine 14 with the empty roving bobbins 10, and then move one section further to the left in the illustration drive where, according to FIG. 2, the lowering of the magazine 14 carried by the transport carriage 15 with the full roving bobbins 10 takes place in the cleared frame section. Then the trolley 15, now carrying the magazines with the empty roving bobbins, to the transfer station 40 on the left in the illustration, in order to deposit the magazines in the receiving frame 42, from where they are transferred in the manner described above by the relevant transfer linkage 41. The transport carriage 15 then returns empty to the transfer station 30 on the right-hand side in the illustration, in order to pick up 32 new magazines with full roving bobbins from the holding frame.

From the above, it is now readily apparent that a fully automatic roving bobbin change was achieved in this way, the measures taken permitting an elegant, easily controllable and clear concept. In particular, the measures described above allow existing machines to be converted at any time. Of course, there are a large number of possible changes within the scope of the invention. For example, a separate transport carriage can run on each machine side, or several transport carriages can drive, of which, for example, some only transport magazines with empty and the other magazines with full roving bobbins.

Claims (10)

1. Spinning machine, especially a ring spinning machine, with a plurality of spinning positions arranged in a row, at least one roving package carrier being associated with each spinning position and respective groups of roving package carriers (16) for adjacent spinning positions being organised as a group and mounted on a mobile magazine (14) characterised in that the magazine can be grasped by a lifting device (17, 18) and is lifted by this device from the operating position, in which the roving packages serve as feed material for the spinning machine, into a position above the spinning machine, or can be lowered from the latter position into the operating position, and in that the lifting device (17, 18) ist part of a transport means (15) which is adapted for movement along the spinning machine.

2. Spinning machine according to claim 1 characterised in that the mobile magazines (14) are formed as panels which are replaceably arranged in a framework (11) in at least one row.

3. Spinning machine according to claim 2 characterised in that the framework (11) is also formed as a rail system for the transport means (15) and extends above the machine.

4. Spinning machine according to claims 1 and 3 characterised in that the transport means (15) is a transport slide or carriage with at least one lifting device (17, 18) for receiving at least one magazine (14).

5. Spinning machine according to claims 1 and 3 characterised in that the transport means (15) is a transport slide or carriage and comprises two lifting devices (17, 18), one lifting device serving to take up a magazine (14) with empty roving packages and the other serving to deliver a magazine with full roving packages.

6. Spinning machine according to claims 4 and 5 characterised in that each lifting device (17, 18) comprises a connection plate (18) for temporary mechanical and/or electrical connection thereof with a panel-like magazine (14).

7. Spinning machine according to one of the preceding claims 1 to 6 characterised in that the transport slide or carriage (15) carries a control and drive unit (21) which operates on the one hand on the lifting devices (17, 18) and on the other hand via a motor pinion (26) on a rack (27).

8. Spinning machine according to claims 1 to 7 characterised in that the framework (11) forming the rail system for the transport means (15) extends beyond the end of the machine to transfer stations (30, 40) for magazines (14) with full or empty roving packages (10).

9. Spinning machine according to claim 8 characterised in that each transfer station (30, 40) comprises a transfer lifting device (31 or 41) and a receiverframe (32) forthe magazines (14).

10. Spinning machine according to one of the preceding claims 1 to 9 characterised in that automatic roving package change is controlled by a processor system (35).

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