JPH08324892A - Device to dissociate thread end from surface of fine spinning cop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an operation rate of a device by arranging the device for accurately positioning a yarn end part dissociating member on the basis of the transmission of winding state data on a spinning cop to be processed in a yarn end part dissociating device. SOLUTION: In an area of a yarn end part dissociating device 26, a spinning cop 41 is positioned in a working position. That is, a yarn end part dissociating member 16 is lowered toward a conical winding part 43 of the spinning cop 41. When the yarn end part dissociating member 16 moves downward to the working position, a spinning cop centering member 17 is placed on a bobbin tube pointed head member 48, and the spinning cop 41 is positioned by receiving the action of a spring 42. At the same time, a spinning cop rotating device 45 abuts to a bobbin support 44 by being turned toward the bobbin support 44. A movement of the yarn end part dissociating member 16 to the working position is controlled by being converted into an accurate distance value to be lowered by a device composed of a reversible driving device, a magnetic pole car measuring unit 35 and a zero position sensor 37 in relation to winding state data detected by a yarn end part searching device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for separating a yarn end from a surface of a spinning cup, which is provided with a mechanical contact member which can be mounted on a conical winding portion of the spinning cup. is there.

[0002]

2. Description of the Related Art A yarn end searching device having a mechanical contact member as described above is disclosed in, for example, German Patent No. 391.
It is known based on the specification of 8788.

The known device comprises a turntable having a plurality of bulges at regular angular intervals for receiving a bobbin carrying tray. The turntable is sent intermittently, whereby the bobbin transfer tray, which is gated in via the transfer path, is sequentially delivered to the various processing stations together with the spinning cups placed thereon. One of these processing stations has a lifting member that is adjustable and movable parallel to the tube axis of the spinning cup to be processed. A sensor for detecting the position of the conical winding portion of the spinning cup, a blow nozzle for separating or peeling the yarn end portion, and a mechanical contact member are arranged on the elevating member. When one spinning cup reaches the processing station, the lifting member is lowered until the sensor detects the position of the conical winding of the spinning cup. In this state, the contact member comes into contact with the surface of the yarn layer in the upper conical region of the yarn layer of the spinning cup. Then, while the elevating member alternately performs upward movement and downward movement several times, air is blown by a blow nozzle to disengage the yarn end of the yarn layer of the spinning cup and blow the yarn end upward. Sprayed on the surface of the yarn layer. The dissociated yarn end is sucked and held by a suction tube arranged above the spinning cup. The bobbin or spinning cup is then rotated in the opposite direction by the drive roller to rewind the yarn.

A disadvantage of the known processing station is that the spinning cup is heavily loaded due to the repeated mounting of the contact members on its conical winding several times. Not only that, the processing station
Overall, it only constitutes a subordinate station of the spinning cop preparatory transport section, which is relatively time-consuming.

[0005]

The object of the present invention is to achieve a further improvement of a yarn end preparation device of the type mentioned.

[0006]

Means for Solving the Problems The constituent means of the present invention for solving the above-mentioned problems is, as described in claim 1 of the appended claims, a yarn end dissociation device for a spinning cup to be treated. It has a device that enables accurate positioning of the yarn end dissociation member based on the transmission of winding state data.

Advantageous construction means of the invention are as described in the second and subsequent claims.

[0008]

The advantage of the yarn end portion dissociation device having the constituent means according to claim 1 is that, while an affordable structure is realized,
Since the yarn end dissociation member can be moved to a known working height each time, the operation of the device of the present invention will have a remarkable effect.

In the case of an advantageous embodiment as claimed in claim 2, the position detection of the conical winding of the spinning cup to be treated already exists in the area of the bobbin carrier transport system. It is performed based on the sensor. In other words, it is not necessary to arrange a unique sensor in the area of the yarn end dissociation device of the present invention, and instead, the winding state data already known by the processing station in front is evaluated. is there.

Various forms of transmission of the winding state data can be considered.

According to the third aspect of the present invention, the winding state data is electronically arranged by, for example, a coder installed in the front processing station area and arranged in a bobbin transfer tray for a spinning cup, for example. Transmitted to the information carrier,
And subsequently, it is read out via a decoder arranged in the region of the yarn end dissociator according to the invention and processed accordingly. Such a system is extremely flexible and versatile and is not subject to problems in the transport system.

Another embodiment of the winding state data transmission is described in claim 4. In this case, the yarn end treatment stations involved are connected to one another particularly preferably via the central control unit of the yarn rewinder. Such an arrangement has the particular advantage that it saves the use of station-specific controls.

In principle, of course, it is also possible as described in claim 5 to directly connect the processing station equipped with the sensor and the yarn end dissociation device according to the invention via a corresponding control lead. is there. In this case, the central control unit is released from the burden of carrying out the additional control tasks.

The embodiment as claimed in claim 6 makes it possible to obtain a compact and effective device which also enables the processing of so-called "problem cups" which are particularly problematic in operation. Since the spinning cup centering member is automatically positioned on the bobbin tube when the yarn end dissociation member is lowered to the working position, it is guaranteed that the spinning cup is always fixed in position during processing. .

By means of the construction means according to claims 7 to 9, a robust device is obtained which is relatively inexpensive to manufacture based on a small number of simply constructed components. The pole wheel type measuring unit used in that case is a reliable and well-established device that can convert a given winding state data into an accurate working height of a mechanical yarn end dissociation member. Nothing else.

Claims 10 to 12 relate to a particularly advantageous embodiment of the spinning cup. A coil spring incorporated with a certain preload is used as a mechanical force-storing member for fixing the spinning cup in the working position and, in some cases, compensating for differences in bobbin tube length. It is particularly advantageous to do so. Furthermore, by means of a rubber-like stopper element arranged between the spinning cup centering member and the bearing carriage of the yarn end dissociating member, when the bearing carriage is brought into contact with the spinning cup centering member, it is possible to make the components involved. The occurrence of shock loads that may cause damage is avoided.

An advantage obtained with the embodiment of the yarn end releasing member as claimed in claim 13 is that the yarn end releasing member can also be used in the case of spinning cups of different diameters. Furthermore, based on the fact that the yarn end dissociating member is configured in the shape of an air sac, unacceptable surface pressure is generated in the conical winding part of the spinning cup, damaging the wound layer of the spinning cup, and its effect until afterwards. Inconvenient situations such as dragging are also prevented.

The embodiments as claimed in claims 14 and 15 are but two possible variants of the vertical guide. Ultimately, which alternative to choose is only a secondary issue to the functioning of the present invention.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows, in perspective view, the bobbin carrier transport system 21 of the yarn rewinder 25, which is only shown schematically for the sake of generality. In that case, the illustration of the yarn winding device 25 is substantially limited to the position indication of the energy supply / operation unit 22 and the yarn winding portions A, B, ... A bobbin support carrier system 21 is disposed on a machine seat (chassis) generally designated by reference numeral 20. The bobbin support carrier system 21 has a large number of different carrier sections, and the functions of these carrier sections will be briefly described below.

The delivery and transfer section 1 forms the cut point of the bobbin carrier transfer system according to the invention with respect to the transfer system of the preceding spinning machine in the production process. The front spinning machine is generally a ring spinning machine (not shown).

In the area of the delivery / conveyance section 1, a spinning machine wound by a ring spinning machine is delivered by a replacing machine (not shown) to the delivery system of the yarn rewinding machine.
The rewound empty tube is sent back. The spinning cup 41 placed on the bobbin support 44 unique to the yarn winding machine is
One or more preparatory transport zones 3 via the machine length transport zone 2
In a preparatory station (not shown) arranged in the preparatory transport section, the backwinding is dissociated from the spinning cup as is known, and the topwinding is formed in the spinning cup. Next, the spinning cup passes through the delivery / transportation section 4 and reaches the cup supply / transportation section 5 configured as a storage / transportation section. From the cup feeding and conveying section 5 which is alternately switched from the right traveling to the left traveling, the spinning cup 41 positioned on the bobbin support 44 reaches the entrance area of the transverse feeding and conveying section 6. As a general rule, the transverse feed section 6 receives three spinning cups, and one of them
While the individual spinning cups are in the winding position inside the blow chambers (not shown in FIG. 1) of the yarn winding portions A and B, they are also positioned on the bobbin support. Of 2
The individual spinning cups are parked at a supply standby position before the blow chamber.

The rewound empty tube is sent back to the delivery / transfer section 1 via the return / transfer section 8 or the distribution / transfer section 9,
And, as described above, it is returned to the transport system of the ring spinning machine by the replacing machine.

Spinning cups that cannot be processed by the preparatory device arranged in the area of the preparatory transport zone 3 are discharged directly to the return transport zone 8 via the connecting transport zone 7 and immediately reach the distribution transport zone 9. To do.

In the area of the distribution / transportation section 9, the thread tube monitor 24 is provided.
Is arranged, and the yarn tube monitor is connected to the central control unit 27 of the yarn rewinding machine 25 via a control lead wire 51.

The distribution / transportation section 9 is connected to the remaining portion preparation transfer section 11 and the repetitive transfer section 12 via the passage 10, and is connected to the pipe cleaning transfer section 13 or the manual preparation transfer section 14 via the repetitive transfer section. ing.

A yarn end searching device 15 is arranged in the area of the remaining portion preparing and conveying section 11. This so-called "remainder preparation station" particularly preferably consists of a negative pressure-loaded casing which is connected to a negative pressure source via a suction air connection. This remaining part preparation device has a vertical suction slit, and the suction slit is sealed by a circulating packing belt. The packing belt has an air through hole in front of the suction nozzle, and in the zero position, it occupies a position where the suction slit is completely sealed.

Since the packing belt is lowered steplessly from the zero position, the suction nozzle can be moved to operating positions of various heights. In these operating positions, the suction nozzle is connected to the negative pressure source via the air through hole and the suction slit. In the area of the suction nozzle, a sensor is arranged which can detect the conical winding of the spinning cup. Furthermore, the balance preparation device has a magnetic-wheel-wheel type measuring unit in the region of the packing belt drive, which magnetic-wheel-wheel type measuring unit is connected to, for example, a central control unit of the yarn winding machine. The magnetic pole wheel type measuring unit, in combination with a corresponding zero position sensor, enables an accurate detection of the working height of the suction nozzle and thus the position of the conical winding of the spinning cup. The information referred to below as yarn winding state data is converted in the yarn end dissociation device of the invention, which is described in more detail with reference to FIGS. 2 to 4, that is to say the mechanical yarn on the conical winding of the spinning cup to be processed. Used to position the dissociation member.

In this case, the sensor for detecting the spinning cup cone position does not necessarily have to be arranged in the area of the balance preparing device as described above. It is of course also possible to detect the thread winding state data by means of a sensor arranged in the "normal" cup preparation station.

The important point is that the once detected thread winding state data can be used many times, thereby eliminating additional sensors. The detected yarn winding state data can be taken into consideration so as to adjust the yarn winding speed, for example, during the winding operation of the spinning cup in the yarn winding section.

The yarn end releasing device 26 according to the present invention is equipped with a mechanical yarn end releasing member 16 as well as a spinning cup centering member 17, particularly as shown in FIG. Both working elements, namely the yarn end disengaging member 16 and the spinning cup centering member 17, are fixed by means of bearing carriages 18, 19 to a vertical guide integrally formed on the casing wall parts 46, 47 or to said casing wall parts. It is supported so as to be shiftable along the vertical guides 28 and 29.

The bearing carriage 18 supporting the yarn end disengaging member 16 is in this case connected via a clamp joint 30 to a circulation type adjusting belt 23, which in turn is a deflection guide roller 31, Guided through 32. One of the two deflection guide rollers 31 and 32 is provided with a reversible drive device 3 capable of performing specific control.
3 (see FIG. 4). Further, a magnetic pole wheel type measuring unit 35 is installed in the area of the reversible drive device 33, and the magnetic pole wheel type measuring unit is connected to a central control unit 27 of the yarn rewinding machine 25 via a signal conductor 36. A polar wheel type measuring unit of the above type is known,
And, since it is commercially available in a wide variety of embodiments, it is easily available.

The yarn end dissociation device 26 is provided with the zero position sensor 3
7, the zero position sensor is also connected to the central control unit 27 via a conductor 38. In this case, the zero position sensor 37 monitors the movement starting position of the support carriages 18 and 19.

Bearing carriage 18 for the yarn end disengaging member 16
An air-sac-like contact member 39 is fixedly attached to the air-sac-like contact member 39.
It contacts the conical winding part 43 of No. 1. Also support carriage 1
8, a particularly preferably elastic stopper 40 is arranged which engages the lower surface of the spinning cup centering member 17 during the upward movement of the yarn end dissociation member 16,
The spinning cup centering member is shifted to the null position against the force of the spring member 42.

Next, the function of the yarn end dissociation device of the present invention will be described.

As already mentioned above, the spinning cup 41 wound by the ring spinning machine is first delivered to the preparation station (not shown) arranged in the area of the preparation transport section 3,
At the preparation station, the yarn ends of the spinning cups are prepared for the next yarn winding process.

A spinning cup that cannot be processed in the preparation station, or a spinning cup that is not completely rewound in the yarn rewinding sections A, B ...
It is delivered to the yarn end searching device 15 of the remaining part preparation station arranged in No. 1. In the yarn end retrieval device 15, the difficult-to-operate yarn ends of the spinning cup are particularly preferably pneumatically retrieved. To this end, a suction nozzle adapted to the conical winding contour of the spinning cup has
The spinning cup is dropped onto the surface area. The position of the conical winding is then detected via a sensor and transmitted to the central control unit 27 of the thread rewinder 25, for example. When the pneumatic operation type yarn end retrieval device 15 does not successfully retrieve the yarn end of the spinning cup, the spinning cup is transferred to the yarn end dissociation device 26.

In the area of the yarn end disengaging device 26, the spinning cup 41 is first positioned in the working position, as shown in FIG. That is, the yarn end parting member 16 is lowered toward the conical winding part 43 of the spinning cup 41. When the yarn end dissociation member 16 moves downward to its working position, the spinning cup centering member 17 moves the bobbin tube tip 4
8 and the spinning cup 41 is attached to the spring member 42.
Positioned by the action of.

At the same time as the spinning cup centering member 17 is placed, the spinning cup rotating device 45 is swung toward the bobbin support 44 and brought into contact therewith.

The movement of the yarn end parting member 16 to the working position is performed in relation to the winding state data detected by the yarn end searching device 15 of the remaining part preparation station.

That is, a reversible drive device 33 capable of specific control
By means of a suitable device consisting of a magnetic pole wheel measuring unit 35 and a zero position sensor 37, the winding state data is obtained by bringing the air-sac contact member 39 into contact with the surface of the conical winding 43. Is converted into an accurate distance value that must be lowered.

The pole wheel measuring unit 35 can then control the reversible drive 33 very accurately, in particular because the zero position of the air-sac contact member 39 is monitored by the zero position sensor 37.

[Brief description of drawings]

FIG. 1 is a perspective view of a bobbin support carrier system showing an automatic yarn rewinding machine region equipped with a yarn end releasing device according to the present invention.

FIG. 2 is a side view of the yarn end dissociation device shown in partial cross section.

FIG. 3 is a plan view of the yarn end dissociation device taken along the line III-III in FIG.

4 is a plan view of a yarn end dissociation device including a vertical guide mechanism according to another embodiment, which is taken along the line IV-IV in FIG. 2. FIG.

[Explanation of symbols]

A, B yarn winding section, 1 delivery transport section, 2
Machine-long transport zone, 3 preparatory transport zone, 4 sending transport zone, 5 cup supply transport zone, 6 horizontal transport transport zone, 7 connecting transport zone, 8 sendback transport zone,
9 distribution conveyance section, 10 passages, 11 remaining preparation conveyance section, 12 repeated conveyance section, 13 tube cleaning conveyance section, 14 manual preparation conveyance section, 15 yarn end search device, 16 yarn end dissociation member, 17 spinning spinning cup centering Member, 18, 19 Bearing carriage, 20 Machine seat, 21 Bobbin support carrier system, 22 Energy supply and operation unit, 23
Circulation type adjustment belt, 24 thread tube monitor, 25
Yarn rewinding machine, 26 Yarn end dissociation device, 27
Central control unit, 28,29 Vertical guide,
30 clamp joint, 31, 32 deflection guide roller, 33 reversible drive device, 34 shaft, 35
Magnetic pole wheel type measuring unit, 36 signal lead wire, 37 zero position sensor, 38 lead wire, 39 air bag-like contact member, 40 stopper, 41 spinning cup, 4
2 spring member, 43 conical winding part, 44 bobbin support, 45 spinning frame rotating device, 46, 4
7 casing wall part, 48 bobbin tube cusps,
50 electronic information carrier, 51 control conductor

Claims (15)

[Claims] 1. A device for separating a yarn end from a surface of a spinning cup, which comprises a mechanical contact member mountable on a conical winding portion of the spinning cup, wherein the yarn end dissociating device (26 )
Has a device (33, 35, 37) that enables accurate positioning of the yarn end dissociation member (16) based on the transmission of the winding state data of the spinning cup (41) to be processed. A device for separating the yarn end from the surface of the spinning cup. 2. The winding state data of the spinning cop (41) is detected at the front yarn end treating station (15) and transmitted to the yarn end dissociator (26). Equipment. 3. The winding state data of the spinning cup (41) is transmitted by an electronic information carrier, which is arranged on the spinning cup or bobbin support (44).
The device according to claim 2. 4. The yarn end processing station (15) for detecting the winding state data of the spinning cup (41) and the yarn end dissociation device (26) comprise a central control unit (27) of the yarn rewinder (25). 3. Device according to claim 2, connected via 5. The device according to claim 2, wherein the yarn end treatment station (15) and the yarn end dissociator (26) are directly connected via corresponding control conductors. 6. A spinning cup centering member (17) in which a yarn end dissociation device (26) can be positioned on a bobbin tube tip (48) of a spinning cup (41), and a transmitted winding state. 6. The device according to claim 1, further comprising a thread end disengaging member (16) adjustable to the working height in accordance with the data. 7. The yarn end dissociating member (16) is guided to be shiftable along vertical guides (28, 29) and has a specific height via a circulating drive type adjusting belt (23). 7. The device according to claim 6, which is adjustable in position. 8. A drive (33) in which the adjusting belt (23) is guided via deflection guide rollers (31, 32) and at least one deflection guide roller (31 or 32) is controllable. The device of claim 7, which is associated with. 9. Device according to claim 8, characterized in that a zero position sensor (37) and a polar wheel type measuring unit (35) are provided which allow specific control of the drive device (33). 10. Spinning cup centering member (17)
7. The device according to claim 6, in which is mounted shiftably along the vertical guides (28, 29) and is positionable in the null position by means of the thread end disengaging member (16). 11. Device according to claim 10, characterized in that an elastic stop (40) is arranged on the bearing carriage (18) of the yarn end disengaging member (16). 12. Spinning cup centering member (17)
11. The device according to claim 10, wherein is loaded via a mechanical force-storing member (42) such as a coil spring. 13. The yarn end disengaging member (16) has an elastic air-sac-like contact member (39) capable of abutting the conical winding portion (43) of the spinning cup (41). Claim 1 to 1
The apparatus according to any one of 2 to 2. 14. Device according to claim 7, wherein the vertical guides (28, 29) are each part of a casing wall (46, 47) molded from sheet metal. 15. Device according to claim 7, characterized in that the vertical guides (28, 29) are designed as shaped steel parts fixed to the casing wall (46 or 47).