EP3233686A1

EP3233686A1 - Spinning machine

Info

Publication number: EP3233686A1
Application number: EP15813113.6A
Authority: EP
Inventors: Robert Nägeli; Robert Gnos
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2014-12-16
Filing date: 2015-12-08
Publication date: 2017-10-25
Also published as: CH710527A1; WO2016097930A1; CN107002311A; CN107002311B

Abstract

The invention relates to a spinning machine (1), in particular a ring spinning machine, comprising at least one group of adjacently arranged spinning stations (2) which are driven by at least one drive element (MA, MB), the controller (C1, C2) of which is connected to a central control unit (ST). To guarantee an optimal operation of both longitudinal sides (A, B) of a spinning machine equipped with a large number of spinning stations (or spindles), it is proposed that, when viewed in the longitudinal direction (LR) of the spinning machine (1), at least one free through passage (DR) is provided between the spinning stations (2) for an operating person and divides the spinning machine (1) into at least two subregions (38, 39), wherein the spinning stations of each subregion are assigned their own drive elements (MA, MB), the controller of which is connected to the central control unit (ST).

Description

spinning machine

The invention relates to a spinning machine, in particular ring spinning machine with at least one group of juxtaposed spinning stations, which are driven by at least one drive element whose control is connected to a central control unit

In practice, there is the demand for spinning machines with very high spindle numbers, which go over 2000 spindles. This is to achieve a cost-effective production in a small footprint in the spinning mill. Due to the ever-increasing spinning machines and the operation, which is usually equipped on both sides with spinning stations spinning machines, more difficult and expensive. That is, to serve both long sides of the spinning machine by an operator, the path lengths which the operator has to travel are getting longer and longer. As a result, malfunctions occurring at the spinning stations can be remedied under certain circumstances only with certain delays, which can be reflected in a lower production capacity of the spinning machine. The escape routes for the operators who must be provided to leave the spinning may also be longer due to the long spinning machines. The invention thus has the object to avoid the disadvantages occurring when using very long spinning machines, in particular ring spinning machines, and to ensure an optimal and fast operation of the spinning machine.

To solve this problem it is therefore proposed that - seen in the longitudinal direction of the spinning machine - within at least one group of spinning stations at least one free passage for an operator is provided, which divides the spinning machine into at least two subregions, wherein the spinning stations each sub-area assigned their own drive elements are whose control is connected to the central control unit. For example, the term "group of spinning stations" refers to a plurality of juxtaposed spinning stations on the front or rear of the spinning machine, that is, the claimed free passage for the operator passes through the group of spinning stations on the front side and the rear side of the spinning machine to divide the spinning machine into two sections.

Thus, it is possible for the operator to traverse the spinning machine on the intended free passage in order to get to the opposite longitudinal side of the spinning machine as fast as possible and on short ways to eliminate disturbances occurring at the spinning stations there immediately. As a rule, the free passage is located in the half of the longitudinal side of the spinning machine.

By providing a free passage within the longitudinal direction of the spinning machine and thus dividing the spinning machine into at least two subsections, the longitudinal shafts (e.g., drafting shafts) guided to the individual spinning stations are interrupted at the point of free passage. Therefore, it is necessary to provide for these longitudinal shafts, as well as for the frame parts of the sections bearing points, or supports on both sides of the free passage.

By dividing the spinning machine in, provided with its own drive elements sections, a better and optimized drive concept with regard to a, equipped with a large spindle number spinning machine can be achieved.

In order to transport the wound at the individual spinning stations of the spinning units divided into sections spinning sleeves (also called cops or coils) to a delivery point at one end of the spinning machine, whereby the free passage area must be bridged, it is proposed that the spinning machine, below Spinning points arranged transport device which is provided with at least one, connected to the control unit drive, wherein the transport device removes the, formed at the spinning stations wound sleeves and empty sleeves supplies the spinning stations and the free passage is arranged above the transport device. This makes it possible, by appropriate attachment of steps and walk-treads, that the operator can get over the free passage above the transport device on the opposite side of the spinning machine. The transport device must therefore not be interrupted in the area of free passage. It is further proposed that the transport device consists of at least one, around one or more groups of spinning stations of the spinning machine, circulating, connected to a drive endless conveyor (4).

From EP 450 661 A1, such a transport device is known, via which, transported at the individual spinning stations sleeves (coils, cop) are transported via a driven endless conveyor and transferred to a subsequent winder and another collection point. The sleeves are attached to a sleeve pin, which is attached to a pin slide. By means of carriers mounted on the endless conveyor (for example a cable or a steel belt), the spigot spouts are displaced on a slide rail and fed to the collection point. These

Collection point or winder is usually located at a head or foot end of the spinning machine. The transfer to the following winder or to the collection point is done with appropriately trained acceptance devices. Such is z. As shown in DE 41 29 537 C2. To re-create new coils, empty sleeves are plugged back onto the now emptied sleeve journal of the journal slide and transferred via the transport device to the respective spinning stations. In order to achieve an exact positioning of the empty tubes at the respective spinning positions, at least one sensor is provided in the region of the transporting device (for example on an endless conveyor), which can detect the respective position of the pinions with respect to the spinning positions.

In practice, it has been shown that with increasing length of the spinning machine drive problems for the drive of the endless conveyor can occur. These can occur, for example, due to slip occurring between the drive wheel and the endless conveyor (traction means). To counteract this, it has been proposed in DE 197 55 973 A1 to provide at least two drive devices for driving the endless conveyor, wherein in each case the attachment of a drive to the remote ends of the endless conveyor is proposed.

With a further increase of the spindle numbers (eg over 2000 spindles) under certain circumstances this measure is no longer sufficient to completely eliminate the problems of slippage occurring in the process. In a conventional spinning machine, juxtaposed spinning stations are provided on both their longitudinal sides. hen. That is, in a spinning machine with 2000 spinning stations 1000 spinning stations are arranged on each longitudinal side. The endless conveyor used for the transport of sleeves and bobbins (Kops) is guided along both longitudinal sides of the spinning machine.

By further increasing the length of the spinning machine and thus also of the endless conveyor not only the problems already described with regard to slippage can increase, but also problems in terms of increased elongation of the endless conveyor occur, which may lead to inaccurate positioning of the pin slide with the sleeves the respective spinning station can lead. Also, the clamping devices used for the endless conveyor encountered to its limits in terms of their effectiveness.

In order to eliminate these problems, it is further proposed that the transport device - seen in the longitudinal direction of the spinning machine - at least two, each having an endless conveyor, having successively arranged sections and between the sections a transfer device for transferring empty or full sleeves between the, are provided directly opposite ends (E1, E2) of the sections (T1, T2) and the free passage is provided above the transfer device.

By dividing the transport device into at least two sections, the length of the respective endless conveyor can be significantly reduced, with the previously described problems in terms of slippage in the drive transmission and a greater longitudinal expansion of the endless conveyor no longer occur. The load on the tensioning devices for the endless conveyor of the respective section is also reduced. Thus, it is possible to assign the respective sections of the spinning machine, on both sides of the free passage, each an endless conveyor, wherein the transfer device for the sleeves and coils between the endless conveyors is mounted below the free passage.

Furthermore, it is proposed that the respective endless conveyors are provided with drivers and guided around deflection rollers, wherein at least one of the deflection rollers of each endless conveyor is connected to a drive means and the drivers on Transport slide rails guided slide carriage, which carry empty or wound yarn carrier and are transferred via the transfer device between the, directly opposite ends of the longitudinal sides of the sections. This makes it possible to transfer the pegs mounted on pods, or wound sleeves (cops, coils) in a simple way in the transfer device from one section to the other section, especially since the sleeves, or coils remain on their means of transport. That is, the equipped with a sleeve or a spool transport (pin slide) is released by a driver of a subsection in the transfer device and fed via the transfer device a driver of the other section of the transport device. In order to ensure a slip-free drive even with larger lengths of the sections of the transport device, it is proposed that at least two deflection rollers of each section is connected to a drive means, wherein a first drive means of each section is arranged in each case in the region of the opposite ends of the sections , and in each case a second drive means is arranged in the region of the ends of the sections which are furthest away from one another.

In order to controlled and safely guide the pin slides with the attached sleeves or bobbins during transfer to the transfer device, it is proposed that the transfer device comprise at least two, spaced apart, running in the longitudinal direction of the spinning machine, each with an entry and exit area guides for Has journal carriage. These guides are essentially the lateral guidance and a horizontal guidance of the peg slides in the area of the transfer device.

In order to transfer the trunnion carriage in a predetermined time frame to the driver of the endless conveyor other subsection, it is proposed that the guides for conveying the trunnion have a connected to a drive and driven transport. This ensures that no gaps are created on the carriers of the endless conveyor.

Preferably, the transport may be an endless belt whose outer

Contour partially protrudes into the conveying region of the pin slide in the respective guide. As a result, the pusher carriage guided in the respective guide is guided by a NEN friction with the driven belt taken. It is also possible to provide a positive entrainment, wherein the belt can be provided with elevations, which can engage in intended recesses of the pin slide. It is further proposed that the guides are provided with lower sliding surfaces, which is provided with a running in the longitudinal direction of the guide free passage, in which the belt protrudes.

Thus, a frictional engagement between the belt (e.g., round belt) and the lower sliding surface of the pin slide is made, which ensures a safe entrainment, especially since the pin slide rests with its entire weight on the belt.

In order to ensure a safe supply and discharge of the peg slide for guiding, or from the leadership of the transfer device, we further proposed that the belt is guided on to a vertically oriented axis of rotation rotatably mounted discs, each with a disc in the entrance and Exit region of the respective guide and a further disc between the guides is arranged. In this case, this further disc can also be arranged between the entry and exit areas of the guides and be connected to a drive, via which the belt is driven.

This arrangement of the discs and the guided on the discs belt ensures that the peg slides are detected safely in the acquisition and delivery to the transfer device.

In order to safely separate the pin carriage at the transfer point to the leadership of the transfer device from the respective driver of the endless conveyor and at the respective delivery point of the guide securely coupled to the respective driver of the endless conveyor is further proposed that in the respective entry and exit area of the guides guide means on each a, extending transversely to the guides sliding surface are provided, which is aligned with the slide rails of the respective section of the transport device, wherein the guide means protrude into the conveying path, held on the carriers pin slides and deflect them at the respective entry region of the guides to the guides and the respective exit Area of the guides to the carriers of each section of the transport device.

When the pin slides on guide surfaces of the guide means in the respective entry region of the guides, the pin slides are released from the carriers of the transport device and fed to the respective guide. In the exit region of the respective guide, the guiding means, provided with corresponding guide surfaces, cause the carriers provided by the guides to be fed to the transport device.

Preferably, these guide means may be mounted removable. This allows a self-contained conveying of the peg slides within a section of the transport device. In other words, the trunnion carriages transported on a section of the transport device are no longer separated from the drivers by guide means in the area of the transfer device and are guided past the transfer device in a so-called bypass without being transferred to the subsequent section of the transport device. This may be advantageous when e.g. the area of the spinning machine, which is assigned to the subsequent section of the transport device must be stopped due to a fault. That The first section of the spinning machine can still be operated here in an autonomous operation.

In order to also monitor the area within the respective guide of the transfer device, it is proposed that between the entry and exit area of each guide of the transfer device there is provided at least one sensor for detecting sleeves or coils held on pin slides. It would also be conceivable that the presence of peg slides in the guides is scanned directly via a sensor.

In order to control the transport of the respective section of the transport device with the transport within the transfer device, it is proposed that each section of the transport device in the region of the transfer device at least one sensor for position detection of a, held by a driver of the endless conveyor trunnion. These sensors are, like the sensors of the guides of the transfer device, connected to a control unit via which the respective drive of the sections of the transport device and the drive of the Means of transport in the transfer device is coordinated with each other to ensure a complete and trouble-free transfer of the pin slide.

It is further proposed that the transfer device - seen in the longitudinal direction of the spinning machine - is slidably mounted on the spinning machine, wherein the deflection rollers of the endless conveyor which are arranged in the end portions of the sections, which are directly opposite to the transfer device rotatably mounted. This makes it possible to move by moving the transfer device from the mounted on the transfer pulley pulleys. Thus one of the endless conveyors of a section of the transport device can be tensioned. For the other endless conveyor of the other section, a separate tensioning device is provided, which is attached to the end of the endless conveyor, which points away from the transfer device. To synchronize the drives is further proposed that the control of the drive elements of the sections of the spinning machine and the control of the drive of the transfer device, and the sensors of the transfer device and the sensors for detecting the position of a peg slide are connected to the respective section of the transport device with a central control unit.

Further advantages of the invention will be shown and described in more detail with reference to subsequent embodiments.

Show it:

1 shows a schematic front view of a spinning machine with a claimed according to the invention free passage

2 shows a schematic plan view of a spinning machine according to FIG. 1 with a

Transport device with a revolving endless conveyor

A schematic plan view of a spinning machine with a transfer device between two sections of the transport device.

4 shows a side view Y of Figure 3

5 shows an enlarged plan view in the region of the transfer device according to FIG. 3 FIG. 6 shows an enlarged partial view X according to FIG 1 shows a front view of a spinning machine 1, wherein a transport device in the form of a monorail 33 is provided above the spinning machine, via which roving bobbins 35 are fed to the individual spinning stations 2. The spinning machine 1 is divided into two sections 38, 39, between which a free passage DR is provided. Each portion 38, 39 in this case has a plurality of juxtaposed spinning stations 2, which are mounted on the front and back A, B of the spinning machine. This is also shown in the plan view of FIG. 2 (according to FIG. 1). Below the spinning stations 2, a transport device T is mounted with an endless conveyor 4, which is provided for the removal of the coils S produced at the spinning stations 2 (also called Kops) to a winder mounted adjacent to a foot F F SM. Likewise, the endless conveyor 4 is used to feed empty tubes H to the spinning units 2, which are discharged from the winder SM back to the transport device T. The transfer devices from the winder SM to the transport device T and vice versa are well known and therefore have not been shown here in detail.

For the first portion 38 of the spinning machine 1 is in addition to a head portion K, which has a drive motor MA for driving the spinning units 2 (drafting, spindles, etc.), additionally provided a middle part Z1, on which the frame of the first portion 38 of the longitudinal part supported and the longitudinal shafts 41 of the drafting systems are stored.

For the second portion 39 of the spinning machine 1 is in addition to a foot part F, which drive motor MB for driving the spinning units 2 (drafting, spindles, etc.), additionally provided a middle part Z2, on which the frame of the second portion 39 of the longitudinal part supports and the longitudinal shafts 42 of the drafting 41 are stored. It is also possible to provide additional drives for the drafting system shafts 41, 42 in the central parts Z1, Z2. The free passage DR with a distance a is provided between the central parts Z1, Z2, via which an operator can reach the opposite longitudinal side of the spinning machine 1 by a short path. This is a transition 12 with Steps 13 provided over which the operator can traverse the spinning machine above the transport device T.

The attachment of the monorail 33 in the vertical direction is chosen so that it can not lead to a collision with the operator when it passes through the spinning machine 1 in the area of the free passage DR. During operation of the spinning machine, moreover, there are no roving bobbins 35 above the free passage DR.

However, if other means of transport are used, such. As a trolley (also doffer called), the transition 12 can also be performed at a lower level, especially in this case in the free passage DR no transport device T is to be crossed, but at most a continuous frame part of the machine frame of the spinning machine , In order to ensure the synchronism of the drives of the spinning machine 1, are the

Controllers C1 and C2 of the drive motors MA, MB connected to a central control unit ST. The motor MA is driven as a "master", which tracks the motor MB as a "slave". The motors M1, M2 for driving the endless conveyor 4 are also actuated via the central control unit ST, which is connected to the motors M1, M2 via the lines m1, m2. In this case, the control of the motors M1, M2 is integrated directly in the control unit ST. As described below, at least one sensor SE is provided in the region of the endless conveyor 4, which serves for the exact positioning of the supplied sleeves H at the individual spinning stations 2. These sensors SE are connected via the input line SE to the control unit ST, the signals of which are used to control the motors M1, M2.

FIG. 2 shows a schematic plan view according to FIG. 1, which is provided on its front side A and its rear side B with a multiplicity of spinning stations 2 arranged next to one another. The spinning stations are provided, for example, with a drafting arrangement, not shown, which is fed from a pre-yarn bobbin 35 presented above the drafting system with a roving. The yarn formed on the respective drafting system is over a not shown ring / rotor combination wound on a rotating empty sleeve H and a coil S (also called Kops) formed. The sleeve is located on a driven spindle of a spindle bank (not shown) during the winding process. After complete winding of the sleeves, the formed coils S are delivered to a transport device T via known devices (eg, a doffer beam or mobile doffer devices), not shown. The transport device in the present example has a revolving endless conveyor 4, which are guided around, on a machine frame MG rotatably mounted pulleys R1 to R4. Two of the deflection rollers R1, R4 are each in drive connection with a drive motor M1, M2. The endless conveyor 4, which may for example consist of a steel strip, has over its entire length at a distance from each other arranged gripper 5, of which only a few are shown schematically. In order to keep the endless conveyor taut, a tensioning device 6 shown schematically is provided, via which the axes of rotation of the deflection rollers R1, R2 are pushed away from the axes of rotation of the deflection rollers R3, R4. The pulleys R1, R2 are (not shown) slidably mounted and fixed on the machine frame MG.

The finished coils S removed from the spindles are pushed onto pins 8 of pin slides 9 ("sleds" for short), which are guided on a slide rail 11 in a horizontal plane around the spinning machine 1 in a conveying direction FR. The carriages 9 (eg disc-shaped) are held by the grippers 5, whereby the carriages are entrained and transported along the spinning machine 1 during a longitudinal displacement of the endless conveyor 4.

In Figure 2, a head part K of the spinning machine 1 is schematically indicated, in which the drive of the first portion 38 of the spinning machine 1 is housed. Adjacent to an opposite foot part F, in which the drive of the second portion 39 of the spinning machine 1 is housed, for example, a winder SM is arranged, to which the corresponding dispensing devices, the coils S are submitted for further processing. Such a dispenser is z. As shown in DE 41 29 537 C2. As likewise indicated schematically by an arrow, the sleeves H emptied on the winding machine SM are returned to the transport device T via a transfer device not shown in more detail. That is, the empty tubes H are attached at this point on the pin 8 of the carriage 9 again and fed to the spinning units 2 in the conveying direction FR. In order to ensure accurate positioning of the carriages at the individual spinning stations, at least one sensor SE is provided which detects the position of the grippers 5 of the endless conveyor 4. The sensor SE transmits its signals to a control unit ST, via which the motors M1, M2 are controlled accordingly. Instead of a winding machine SM, only one collecting device for the coils can be provided, from which the coils are then transferred manually or via suitable transport devices of a subsequent winding machine. As indicated by a double arrow, the spinning machine can be traversed between the sections 38, 39 via the free passage DR.

2 likewise shows a plan view of a spinning machine 1 according to FIG. 2, wherein a division of the transport device T into two sub-sections T1, T2 arranged with their endless conveyors 4a, 4b is shown in contrast to the example of FIG. Between the mutually opposite ends E1, E2 of the sections T1, T2, a transfer device 14 is attached, via which pass, equipped with empty or full sleeves slide 9 between the sections T1, T2, or transferred. An enlarged partial view of this transfer device 14 can be taken from FIG.

The endless conveyor 4a of the first section T1 is guided over the deflection rollers R3, R4, R7 and R8, wherein the deflection rollers R4 and R7 are in drive connection with a motor M1 or M2. The subsequent thereto second section T2 of the transport device T is equipped with a second endless conveyor 4b, which is guided around the pulleys R1, R2, R5 and R6, wherein the pulleys R2 and R5 are each in drive connection with a motor M3, or M4.

Also in this example, a head portion A is provided at the end of the first portion T1 of the conveyor in which the drive MA of a first portion 38 of the spinning machine 1 is housed, which can be seen from the side view Y of Figure 3 in Figure 4. 4, it can be seen that the drive of the second portion 39 of the spinning machine is effected by a drive MB, which is accommodated in the foot part F. On the representation of the free passage area DR above the transfer device 14 has been omitted in Figure 3 for reasons of clarity. in the Example of Figure 3 is also, as already described in the example of Figure 2, arranged at the opposite end of the head part A in addition to a foot part F a winder SM. The transfer device 14, which is also shown enlarged in a side view X of Figure 5 in Figure 6, is provided with two, spaced from each other and in the longitudinal direction of the spinning machine 1 extending guides 16, 17, each having an entrance and exit area ET, AT exhibit. The slides 9 carrying sleeves H or coils S are guided within the transfer device 14 via these guides 16, 17. Subsequent to the entry or the exit area ET, AT, the transfer device 14 in each case has a sliding surface GF, which runs in the same vertical plane in which a sliding surface of the slide rail 1 1 extends. This ensures that the transfer of the carriage 9 from the slide rail 1 1 to the respective sliding surface GF of the transfer device 14 and vice versa barrier-free and can be done easily.

Following the respective entry and exit regions ET, AT of the guides 16, 17, guide means F1-F4 are mounted above the sliding surfaces GF, which project into the conveying path of the carriages 9 and discharge them accordingly when they hit the guide means.

If z. B. a carriage 9, which carries a finished coil S, of a sliding surface of the slide rail 1 1 of the first section B1 of the rear longitudinal side of the spinning machine 1 through the driven, first endless conveyor 4a via the attached to the endless conveyor gripper 5 on the sliding surface GF Transfer device 14 transferred, so the carriage 9 hits with its outer circumference on an inclined guide surface FF of Führungsmit- F1 and is thereby deflected in the direction of the entry area ET of the guide 16. In this deflection, the carriage is released from the gripper 5 and reaches a sliding surface 3 of the guide 16. The guide surface of the slide rail 1 1, the sliding surface GF and the sliding surface 3 of the guide 16 lie in a common horizontal plane.

To assist this detachment and to transport the carriages within the guide 16, a driven belt 20 guided around slices S1 to S5 is provided. The belt drive is carried out by a disc S5, which between the Guides 16, 17 is rotatably mounted and is partially wrapped by the belt. The disc S5 is in drive connection with a motor M5.

The belt is guided in such a way that it projects through a slot Z provided along the sliding surface 3 into a region above the sliding surface 3 (see FIG. 6). The opening of the slot Z partially protrudes into the area of the sliding surfaces GF. By this arrangement, the belt 20 comes into frictional contact with the underside U of the respective carriage 9, whereby it is displaced along the guide 16 to an exit area AT. As a result of this displacement, the carriage 9 strikes a guide surface FF of the guide means F2 and is deflected along this guide surface transversely to the longitudinal direction of the guide 16. In this deflection process, wherein the carriage is guided on the sliding surface GF, it is pushed onto a waiting gripper 5 of the second endless conveyor 4b of the second section T2 of the transport device T. About the driven endless conveyor 4 b are transferred in the manner described by a first section T1 on the transfer device 14 on the section T2 carriage 9 successively in the conveying direction FR of the subsequent winder SM. So that there are no collisions between the carriages 9 in the area of the transfer device 14, sensors 22 and 23 are mounted in the region of the respective guide 16, which sensors detect the presence or absence of a carriage fitted with a coil S or a sleeve H inside the guides 16, 17 notice. In addition, a sensor 25 is also provided in front of the entry region ET of the guide 16 and a sensor 26 in front of the entry region ET of the guide 17, by means of which monitor the presence of a carriage to be transferred. These sensors 22, 23, 25, 26 are connected to a control unit ST, via which the control of the motors M1 to M5 takes place. In this way, the drive of the two sections T1, T2 can be coordinated with one another, so that on the one hand a complete transport of the carriages is ensured and on the other hand collisions in the area of the transfer device 14 are avoided.

As can be seen from the illustration in FIG. 3, on the second section A2 of the front longitudinal side of the spinning machine 1, the carriages 9 equipped with bobbins have already been transferred to the first section A1 of the front longitudinal side of the spinning machine. On the said second section A2 of the spinning machine, carriages 9 are already transported in the conveying direction FR from the second section T2 of the transporting device to the individual spinning stations 2, which are equipped with empty tubes H. The sleeves H were delivered by the winder to empty carriage 9, which are guided over the endless conveyor 4b at a transfer point (schematically indicated by an arrow) of the winder SM.

The transfer of the tubes 9 equipped with sleeves H from the second section A2 to a first section A1 of the spinning machine 1 by means of the transfer device 14 takes place in the same way as the previously described transfer of the carriages S-mounted carriage 9 between the rear longitudinal sections B1 and B2 of the spinning machine.

In this case, a fitted with a sleeve H carriage 9 is moved over the driven endless conveyor 4b in the region of the guide means F3 on the sliding surface GF, and thereby meets a guide surface FF of the guide means F3. The presence of a carriage 9 is detected by the sensor 26 and transmitted to the control unit ST. Even before the carriage 9 is moved over the guide surface FF in the direction of the entry region ET of the guide 17, it is checked by the sensor 23, whether the space within the guide for the feeding of another carriage 9 is free. If this has been communicated to the control unit ST, then the transfer process is released. Under the action of the belt 20 partially projecting through the slot Z into the region of a sliding surface 7, the carriage 9 is transferred on this sliding surface 7 as far as an exit region AT of the guide 17, subsequently meeting a guide surface FF of the guide means F4. Via this guide surface FF and under the action of the belt 20, the carriage is transferred to an already available gripper 5 of the first endless conveyor 4a. In this case, the carriage 9 is transferred from the sliding surface 7 on the sliding surface GF, which is aligned with the sliding surface 7.

The transport of the carriages 9, which are equipped with empty tubes H, is continued until empty sleeves are ready for transfer to the spindles at all spinning stations 2 of the spinning machine 1.

In order to keep the endless conveyor 4b taut, a tensioning device 6, shown schematically, is provided, via which the axes of rotation of the deflection rollers R1, R2 of the Rotary axes of the pulleys R5, R6 are pushed away, which are rotatably mounted on a frame 30 slidably mounted on the machine frame MG. Also on this frame 30, which carries the transfer device 14, and the vertically aligned axes of the pulleys R7 and R8 of the first Teilab- section T1 of the transport device T are stored. As indicated in Figure 3 by a double arrow, the frame 30 is slidably mounted on the machine frame to tension the first endless conveyor 4a. The pulleys R3, R4 are fixedly mounted rotatably in the machine frame MG. A detailed illustration of the displaceable frame 30 can be seen in FIG. 4. The frame 30 is moved for tensioning the endless losförderers 4a with dissolved screws P on the slots provided L relative to the machine frame MG in the direction of the guide rollers R1, R2 by means of a schematically shown adjusting device 31. Subsequently, the screws P are tightened and thus fixed the frame on the machine frame MG. The tension of the endless conveyor 4b takes place via the tensioning device 6 provided with a spring element.

The positioning of the carriages 9 for dispensing the sleeves H at the individual spinning stations 2 takes place using the sensors SE, as has already been described in the exemplary embodiment of FIG.

Via the lines m1 to m5, the motors M1 to M5 are connected to the control unit ST and are controlled by this. In order to synchronize the drive of the first subsection T1 of the transport device with the drive of the second subsection T2, the drive motors M1, M2 are guided as "masters" with respect to the drive motors M3, M4.

4 shows a schematic side view Y of an exemplary embodiment according to FIG. 3, wherein the spinning machine 1 has been divided into two subregions 38, 39, so that above the transfer device 14 there is a free passage DR with a distance a for an operator. For this purpose, treads not shown in more detail can be provided to facilitate the operator to exceed the transfer device 14 and the passage. This facilitates the operation of the spinning machine, in particular, if these due to the high spindle numbers over a large

Length extends. In other words, if disturbances occur at the spinning stations on the rear side of the spinning machine, an operator can move through the free passage through the spinning machine. Ganges DR reach the back of the spinning machine in a short way and eliminate the fault. Thus, the utilization of the spinning machine is increased because the downtime times can be reduced at the spinning stations. In addition, the additional free passage DR can bring advantages in terms of safety aspects. The intended free passage may under certain circumstances reduce the escape routes in the spinning mill.

As can further be seen in the exemplary embodiment of FIG. 4, a transport device in the form of a monorail 33 is provided above the spinning machine, via which roving bobbins 35 are fed to the individual spinning stations 2. The attachment of the monorail 33 in the vertical direction is chosen so that it can not lead to a collision with the operator when it passes through the spinning machine 1 in the area of the free passage DR.

For the first portion 38 of the spinning machine 1 is in addition to a drive motor MA in a head part K for driving the spinning units 2 (drafting, spindles, etc.) provided a central part Z1 on which the frame of the first portion 38 of the longitudinal part is supported and the longitudinal shafts 41 of the drafting systems are stored.

For the second portion 39 of the spinning machine 1, in addition to a drive motor MB in a foot part F for driving the spinning units 2 (drafting, spindles, etc.) a middle part Z2 is provided on which the frame of the second portion 39 of the longitudinal part is supported and the longitudinal shafts 42 of the drafting 41 are stored.

It is also possible to provide additional drives for the drafting system shafts 41, 42 in the central parts Z1, Z2. Subsequent to the foot part F of the second portion 39, a winder SM is arranged, which are supplied by not shown in detail devices supplied by the endless conveyor 4 b coils. About also not shown devices, empty tubes H are discharged from the winder SM back to the, held by the endless conveyor 4b pin carriage 9.

The transfer of the coils S, or the sleeves H at the transfer device is carried out as in the embodiment of FIG. 4 has already been described.

In order to ensure the synchronous operation of the drives of the spinning machine 1, the controls C1 and C2 of the drive motors MA, MB with a central control unit ST connected. The motor MA is driven as a "master", which tracks the motor MB as a "slave". Also, the controller C3 is for controlling the motors M1, M2 for driving the first endless conveyor 4a and the controller C4 for controlling the motors M3, M4 for driving the second endless conveyor 4b, as well as the controller C5 for driving of the motor M5 for driving the conveyor Z within the transfer device 14 to the central control unit ST connected. As already described above, the controls of the motors M1 to M5 are coordinated with each other via this control unit ST, so that a trouble-free transfer of the coils S and of the sleeves H in the region of the transfer device 14 is ensured. For this purpose, the previously described sensors SE, 25 and 26 (Figure 3, Figure 4) are included. The input lines SE of the sensors SE in the control unit ST are shown schematically. The other schematically shown input lines of the control unit ST provide further connections to the other sensors not shown here, such. B. to the sensors 22, 23 and 25, 26 represents.

If due to disturbances of the first section 38 of the spinning machine 1 must be stopped, it is possible via the control unit ST to operate the second section 39 autonomously to avoid production losses due to the stoppage of the first section 38. In this case, only the motors MB, M3 and M4 are put into operation via the control unit ST. In addition, the guide means F2 and F3 of the transfer device 14 are removed, so that the trunnions 9 held on the grippers 5 of the endless conveyor 4b are no longer deflected in the direction of the guide 17 and can also freely pass the exit area AT of the guide 16.

In the context of the invention, further embodiments are possible.

Claims

claims

1 . Spinning machine (1), in particular ring spinning machine with at least one group of juxtaposed spinning stations (2) driven by at least one drive element (MA, MB) whose control is connected to a central control unit (ST), characterized in that seen in the longitudinal direction (LR) of the spinning machine (1) - within at least one group of spinning stations (2) at least one free passage (DR) is provided for an operator who divides the spinning machine (1) into at least two sub-areas (38, 39) , Wherein the spinning stations of each subarea own drive elements (MA, MB) are assigned, whose control is connected to the central control unit (ST).

2. Spinning machine (1) according to claim 1, characterized in that the spinning machine has a, below the spinning stations (2) arranged transport device (T) with at least one, with the control unit (ST) connected drive (M1, M2 ), wherein the transport device removes the wound on the spinning stations formed sleeves (S) and empty sleeves (H) the spinning units (2) supplies and the free passage (DR) above the transport device (T) is arranged.

3. Spinning machine (1) according to claim 2, characterized in that the transport device (T) of at least one, to one or more groups of spinning stations (2) of the spinning machine, circulating, with a drive (M1, M2) connected endless conveyor (4) exists.

4. spinning machine (1) according to claim 3, characterized in that the transport device (T) - in the longitudinal direction (LR) of the spinning machine (1) - at least two, each having an endless conveyor (4a, 4b) having successively arranged sections (T1 , T2) and between the sections (T1, T2), a transfer device (14) for transferring empty or full sleeves (H, S) between the, directly opposite ends (E1, E2) Subsections (T1, T2) is provided and the free passage (DR) is provided above the transfer device (14).

Spinning machine (1) according to claim 4, characterized in that the endless conveyors (4a, 4b) provided with drivers (5) and guided around deflection rollers (R1 -R8), wherein at least one of the deflection rollers of each endless conveyor (4a, 4b) with a Drive means (M1-M4) is connected and the drivers (5) on slide rails (1 1) guided slide pins (9) carry empty or wound sleeves (H, S) and via the transfer device (14) between the, each other directly opposite ends of the longitudinal sides (A1, A2, B1, B2) of the sections (T1, T2) are transferred.

Spinning machine (1) according to one of claims 4 to 5, characterized in that at least two deflection rollers (R2, R5; R4, R7) of each subsection (T1, T2) are each connected to a drive means (M1 to M4), wherein a first Drive means (M1, M4) of each subsection (T1, T2) are respectively arranged in the region of the opposite ends (E1, E2) of the subsections, and in each case a second drive means (M2, M3) in the region of the ends of the subsections (T1, T2) which are furthest apart.

Spinning machine (1) according to claims 4 to 6, characterized in that the transfer device (14) at least two, spaced apart, in the longitudinal direction (LR) of the spinning machine (1) extending, each having an entrance and exit area (ET, AT) has provided guides (16, 17) for the pin carriage (9).

Spinning machine (1) according to claim 7, characterized in that the guides (16, 17) for conveying the pin slides (9), with a drive (M5) connected and driven transport means (20).

Spinning machine (1) according to claim 8, characterized in that the transport means is an endless belt (20) whose outer contour is partly in the conveying the region of the pin slides (9) in the respective guide (16, 17) protrudes.

10. spinning machine (1) according to claim 9, characterized in that the guides (16, 17) with lower sliding surfaces (3, 7) are provided which with a longitudinal direction of the respective guide (16, 17) extending free passage (Z ) is provided, in which the belt (20) protrudes.

1 1. Spinning machine (1) according to one of Claims 9 to 10, characterized in that the belt (20) is guided on disks (S1-S5) which are rotatably mounted about vertically aligned axes of rotation, one of the disks (S1-S4) in each case Entry and exit area (ET, AT) of the respective guide (16, 17) and a further disc (S5) between the guides (16, 17) is arranged.

12. spinning machine (1) according to one of claims 7 to 1 1, characterized in that in the respective entry and exit area (ET, AT) of the guides (16, 17)

Guide means (F1 -F4) are provided on one, transversely to the guides (16, 17) extending sliding surface (GF), which is aligned with the slide rails (1 1) of the respective section (T1, T2) of the transport device (T), wherein the guide means (F1 -F4) project into the conveying path of the peg slides (9) held on the drivers (5) and divert them to the guides at the respective entry region (ET) of the guides (16, 17) and at the respective exit region (AT ) of the guides (16, 17) the drivers (5) of the respective section (T1, T2) of the transport device (T) out.

13. spinning machine (1) according to one of claims 4 to 12, characterized in that between the entry and exit area (ET, AT) each guide (16, 17) of the transfer device (14) at least one sensor (22, 23) for Detection of, on pin slides (9) held sleeves (H) or coils (S) is provided.

14. spinning machine (1) according to one of claims 4 to 13, characterized in that each subsection (T1, T2) of the transport device in the region of the transfer device (14) at least one sensor (25, 26) for position detection of a, by a driver (5) of the respective endless conveyor (4a, 4b) held journal carriage (9).

15. Spinning machine (1) according to one of claims 4 to 14, characterized in that the transfer device (14) - in the longitudinal direction (LR) of the spinning machine (1) seen - is slidably mounted on the spinning machine, wherein the deflection rollers (R5-R8 ) of the endless conveyors (4a, 4b) which are arranged in the end regions (E1, E2) of the sections (T1, T2), which are directly opposite, are rotatably mounted on the transfer device (14).