CN114538206B - Method and device for preparing spinning bobbins - Google Patents
Method and device for preparing spinning bobbins Download PDFInfo
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- CN114538206B CN114538206B CN202111404055.5A CN202111404055A CN114538206B CN 114538206 B CN114538206 B CN 114538206B CN 202111404055 A CN202111404055 A CN 202111404055A CN 114538206 B CN114538206 B CN 114538206B
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- bobbin
- spinning
- preparation
- spinning bobbin
- winding
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- 238000009987 spinning Methods 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 claims abstract description 144
- 238000004804 winding Methods 0.000 claims abstract description 126
- 238000003860 storage Methods 0.000 claims abstract description 30
- 239000002609 medium Substances 0.000 claims abstract description 28
- 239000006163 transport media Substances 0.000 claims abstract description 19
- 238000007378 ring spinning Methods 0.000 description 14
- 239000002699 waste material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- BHKKSKOHRFHHIN-MRVPVSSYSA-N 1-[[2-[(1R)-1-aminoethyl]-4-chlorophenyl]methyl]-2-sulfanylidene-5H-pyrrolo[3,2-d]pyrimidin-4-one Chemical compound N[C@H](C)C1=C(CN2C(NC(C3=C2C=CN3)=O)=S)C=CC(=C1)Cl BHKKSKOHRFHHIN-MRVPVSSYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/086—Preparing supply packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/086—Preparing supply packages
- B65H67/088—Prepositioning the yarn end into the interior of the supply package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
- B65H67/063—Marking or identifying devices for packages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Abstract
The invention relates to a method and a preparation device for preparing a spinning bobbin. In a method for preparing a spinning bobbin for a subsequent rewinding process at a workstation of a winding machine, the winding machine has an automatic bobbin transport system, in which preparation device the yarn end is separated from the spinning bobbin, grasped and positioned in a preparation position, the spinning bobbin is transported on a transport medium within the bobbin transport system, the spinning bobbin or the transport medium comprising a storage medium with information concerning the respective spinning bobbin. Firstly, different winding states of the spinning bobbin are defined and assigned preparation types, secondly, the different winding states are stored in a control device together with the corresponding preparation types, thirdly, the winding state information of the spinning bobbin is read, fourthly, the read winding state information is compared with the stored winding states, and fifthly, the spinning bobbin is prepared according to the preparation types assigned to the winding states or by forming an upper coil on a bobbin tip and/or by placing yarn into the bobbin tip.
Description
Technical Field
The invention relates to a method for preparing a spinning bobbin for a subsequent rewinding process at a workstation of a winding machine, which has an automatic bobbin transport system, wherein in the preparation device the yarn end is separated from the spinning bobbin, is gripped and is positioned in a preparation position, wherein the spinning bobbin is transported on a transport medium within the bobbin transport system, and the spinning bobbin or the transport medium comprises a storage medium with information relating to the respective spinning bobbin. The invention further relates to a preparation device for preparing a spinning bobbin and to a winding machine comprising such a preparation device.
Background
With regard to ring spinning machines, it has long been known and explicitly described in numerous patent applications that a spinning bobbin manufactured on a spinning machine, which contains a relatively small amount of yarn material, must first be rewound into a cross-wound bobbin before it can be further processed on a subsequent spinning machine, such as a weaving machine, in the production process. The rewinding of such relatively small spinning bobbins into relatively large packages is generally carried out at a winder station.
In the case of the provision of a spinning package by a ring spinning machine, so-called preparation is generally required, since the yarn end of the spinning package rests on the ring spinning machine, so that it cannot be taken up at the winding machine station without special measures and accordingly cannot be transferred to the yarn supply part of the station. In general, a spinning bobbin has a so-called back winding, which is determined by the operation of a ring spinning machine. In ring spinning machines, it is common, at the end of a spinning bobbin journey, for the ring rail to be displaced from its high position into a low position in order to apply a so-called lower coil to the spindle's spindle disk, which is necessary to be able to automatically start spinning the ring spinning machine again after the spinning bobbin has been doffed. During the downward movement of the ring rail, several yarn loops are applied to the surface of the spinning bobbin which is still rotating, which is generally called the back loop.
Such a relatively fixed back winding on the surface of the spinning bobbin is also advantageous during the transport of the spinning bobbin from the ring spinning machine to the downstream winding machine, since for example the risk of the formation of a trailing yarn is prevented. However, in the winder station, this fixed attachment of the back winding to the surface of the spinning bobbin is hindered, since in this region it is generally not possible to disengage the back winding and thus the yarn end of the spinning bobbin.
In automatic bobbin transport systems, the spinning bobbins travel on a transport medium. The state of winding of the spinning bobbins or data relating to the respective spinning bobbin are usually stored in such bobbin transport systems on a storage medium at/in the transport medium or the spinning bobbin itself. The reading device can read the information arranged thereon and avoid the need to ensure that the spinning bobbins are further transported to the corresponding transport section in the transport path.
For this reason, it is common in the textile industry for the spinning bobbins to first pass through a preparation device of an automatic bobbin tube transport system on their way from the ring spinning machine to the winder station, in which preparation device the yarn ends are each separated from the surface of the spinning bobbins and are positioned in a preparation position on the spinning bobbins for the subsequent rewinding process, so that they are easy to handle for the yarn handling and guiding parts of the winder station.
Various embodiments of a preparation device for preparing a spinning bobbin are therefore known in the textile industry and are sometimes described very clearly in a large number of documents.
According to DE3602002A1, the device comprises a cutting device for separating and severing the thread passing by the cutting device, and a thread end introduction device arranged along the path near the cutting device for separating the thread end from the bobbin thread end search device and near the thread end search device in the arrangement for introducing the gripped thread from the bobbin head into the central opening of the bobbin. A bobbin whose yarn end is successfully gripped and whose yarn end having a fixed length is positioned into the central opening of the spinning bobbin is guided into a conveying path and sent to a winding machine.
DE102006050219A1 describes a device comprising a yarn opening station for opening a yarn end and a yarn end pick-up station for picking up and depositing the yarn end in a ready position. The preparation takes place in the form of an upper coil, here called a tip coil, i.e. a predetermined number of coils are wound onto the bobbin tube in the region of the bobbin tip.
In the case of yarn ends which are deposited in the form of a sharp loop, in particular in the case of relatively smooth yarns, it is not excluded that the yarn length is generally insufficient for depositing in a bobbin tube, in particular in the case of relatively small spinning bobbins, when trailing yarns are formed in the path from the preparation device to the winding position. DE4424462A1 thus discloses a device in which, as the spinning bobbin continues to rotate after the formation of the sharp loop, the remaining yarn end is automatically brought directly through the center of the bobbin opening for subsequent reliable feeding into the bobbin.
Common to all known preparation devices is that a type of preparation is always carried out, respectively, which is accompanied by a corresponding positioning of the yarn or yarn end in the preparation position. In a preparation device, the yarn of the yarn bobbin to be prepared is either loosely placed in the hollow bobbin or is slightly detachably prepared in the bobbin tip region in the form of an upper loop or is positioned as an upper loop and then in the bobbin tip.
Different winding states (for which different preparation positions of the yarn on the spinning bobbin are advantageous) are omitted. The winding state can be, for example, the amount of yarn stored on the spinning bobbin. However, if the spinning bobbin is not completely unwound, for example, because the yarn end is no longer caught in the winding position after the yarn break or the yarn clearer detects a number of yarn defects exceeding a limit value. The spinning bobbin is fed out from the station, wherein the information is recorded on a storage medium. The other winding state can also be a yarn package in which, despite the preparation, the yarn end cannot be caught in the station by the yarn handling and guiding part of the station and which still has the entire initial yarn quantity.
Also, the known preparation devices may not be very flexible in reacting to processing different batches simultaneously. The upper loop is advantageously prepared for yarns of specified properties, but is more suitable for other yarns to be dropped into the bobbin tip. Another point is that in the known preparation device the number of upper coils to be formed cannot be changed as required and can be adjusted for the respective winding state.
Disclosure of Invention
The first aspect of the invention thus relates to a method for preparing a spinning bobbin for a subsequent rewinding process at a workstation of a winding machine, the winding machine having an automatic bobbin transport system, wherein in the preparation device the yarn end is released from the spinning bobbin, is gripped and is positioned in a preparation position, wherein the spinning bobbin is transported on a transport medium within the bobbin transport system, and the spinning bobbin or the transport medium contains a storage medium with information relating to the respective spinning bobbin.
The method is characterized in that in a first step, the various winding states of the spinning bobbins are defined and each assigned a preparation type comprising a preparation position for the yarn end, in a second step, the various winding states are stored in the control unit together with their corresponding preparation types, in a third step, information about the winding state of the respective spinning bobbin is read in the preparation device, in a fourth step, the read information about the winding state is compared with the stored winding states, in a fifth step, the spinning bobbin is prepared according to the preparation type assigned to its winding state or by forming an upper coil on the bobbin tip and/or by placing the yarn into the bobbin tip.
In a bobbin transport system, the spinning bobbins travel on a transport medium, also generally referred to as a transport disc, and after they have passed through a preparation device and after the yarn ends have been deposited in a prescribed position, are guided to a transport section leading to a winder station. Information about the respective spinning bobbin, including the winding state and other data, is stored on the storage medium at this time. The reading device can read the information arranged thereon and avoid the yarn bobbins on the conveying path, ensuring that the yarn bobbins continue to be conveyed to the corresponding conveying sections.
The information stored on the storage medium about the respective spinning bobbins contains not only, for example, the spinning position identification or technical parameters such as the fineness or the number of turns of the ring spun yarn, but also data about the processing and the events occurring in this case. In other words, if, for example, the spinning bobbin is not available for rewinding at a winding machine station, this is written down on the storage medium, after which the spinning bobbin is discharged from the station and possibly fed back to the preparation device. The inventors have realized that different preparation types with respect to the yarn end preparation position on or at the spinning bobbin are advantageous for different winding states or spinning bobbin states for the following winding process. The different winding states of the spinning bobbin thus correspond to different preparation types, in particular to different preparation positions for the yarn ends on the spinning bobbin, and are stored in the control unit.
If the spinning bobbin enters the preparation device, the winding state is read from the storage medium and compared with the winding state stored in the control device. Once the winding state of the current spinning bobbin is identified as being consistent with the winding state stored in the control device, a preparation type associated with the winding state is executed, and the yarn end is wound on the bobbin tip or inserted into the bobbin tip as an upper winding in a slightly releasable manner, or already rests on the bobbin tip as an upper winding and is then inserted into the bobbin tip.
In this way, the preparation of the spinning bobbin can be flexibly performed according to the winding state as required. Each individual spinning bobbin facing the preparation is individually prepared for its respective winding state optimally for the subsequent rewinding process. Whether the spinning bobbin is fed directly from the ring spinning machine or from the winding machine station again into the preparation device or not, the preparation type is adapted to the current state of the spinning bobbin or its current winding state. It has been common in the prior art to carry out one of three possible types of preparation in connection with the yarn falling onto the spinning bobbin. According to the invention, the winding state of each individual spinning bobbin in preparation is checked and the yarn drop is carried out optimally for said bobbin.
By means of the method according to the invention, the aim is, for example, to produce a standby beat rate or other advantages of the waste yarn occurring in the winding machine station. In view of the fact that the drop-on-loop requires more time than the drop-on of the yarn in the bobbin tip, the drop-on-loop always results in a loss of readiness beat efficiency. Thus, if the yarn is laid down as an upper loop in each of the spinning bobbins, fewer spinning bobbins can be prepared in the same period than when the yarn is laid down into the bobbin tip in all the spinning bobbins. In addition, the upper loop always causes more waste yarn at the station, since the yarn end is loosened again and the layer of yarn wound around as the upper loop is sucked and cut, after which the yarn can be connected and rewound.
Since the type of preparation is carried out as required as a function of the yarn preparation position on the spinning bobbins and the winding up is completed alone or in combination with the placement of the yarn in the bobbin tip only if this is advantageous for the subsequent winding process, the preparation time overall averages faster than the preparation in which one winding up is formed in each spinning bobbin and the waste yarn is reduced. Nevertheless, the advantages of the upper coil can be exploited if desired.
In one advantageous embodiment, the number of upper coils is part of the type of preparation when forming the upper coils.
The desired number of upper coils is in principle settable. But may occur where too little yarn is stored to accommodate a predetermined number of upper stitches. In this case, it may occur that at the end of the winding of the upper loop no more yarn is present, whereby the yarn is no longer held in the preparation device by the yarn brake. In the most disadvantageous case, the entire upper winding can thus already be sucked in during preparation by the suction device, so that no defined yarn end remains on the spinning bobbin. In the case of such a spinning bobbin, the yarn end cannot generally be found in a station by the yarn handling and guiding means of the station, and the spinning bobbin is discharged unreeled. If a spinning bobbin of this type is re-entered into the preparation device and this information is read by the reading device, a new upper winding can be formed in a reduced number and the spinning bobbin can then be prepared in sequence at the station.
The characteristic representing the winding state is preferably the amount of yarn on the spinning bobbin.
Depending on the existing yarn quantity on the spinning bobbin, different preparation types may be advantageous. If there is only a relatively small amount of yarn on the spinning bobbin, it is for example advantageous if the yarn is located as an upper loop on the bobbin tip instead of being inserted into the bobbin tip. Since less yarn is generally arranged on the bobbin of the spinning bobbin in the lower region, the distance from the bobbin tip to the yarn package with which the yarn is loosely placed on the bobbin is relatively large. As a result, it can be relatively easy for the yarn end to be pulled out of the bobbin tip in an uncontrolled manner during further transport and become entangled as trailing yarn in the bobbin transport system. A full-wound yarn package with more yarn than this can be prepared for subsequent optimal gripping of the yarn in the station by placing the yarn in the bobbin tip. The distance between the bobbin tip and the yarn winding is relatively small, so that there is a small amount of free surface of the yarn which is loose against the bobbin tube.
It is certainly possible here to produce a yarn package in the spinning machine with a smaller yarn quantity than usual, or to let out a yarn package which has not been completely unwound from the station of the winding machine and to feed it again in preparation.
Advantageously, the characteristic of the winding condition is the number of bobbins fed again in the winding station where the yarn cannot be gripped.
Such information is also stored on the storage medium if the ready yarn cannot be grasped by the yarn handling and guiding means of the station and thus the rewinding process cannot be performed. If the spinning bobbin is prepared in a preparation type and the yarn is caught on the station a predetermined number of times without effect, the subsequent preparation can be carried out in an alternative preparation type. For example, if the spinning bobbin is prepared for the yarn to be placed in the bobbin tip and three attempts are made to grasp the yarn at the station, a subsequent preparation by means of the formation of an upper coil can take place. Thus, automatic adjustment of the preparation type as needed can be accomplished. The number of times that attempts are made to grasp the yarn before an alternative preparation type is made is individually adjustable.
In particular, the characteristic of the winding state is the incompletely unwound yarn package discharged from the winding station.
If the spinning bobbin is not completely unwound because, for example, the yarn end cannot be caught again in the winding position after the yarn break, this information is recorded on the storage medium and the spinning bobbin is discharged from the station. If such a spinning bobbin again enters the preparation device, this information is read and the spinning bobbin is prepared according to the preparation type assigned to its winding state.
In an advantageous embodiment, the characteristic of the winding state is the associated batch.
For different batches, different preparation types, in particular different yarn placements on the spinning bobbins, may be advantageous for the yarn handling and guiding means through the winder station to grasp the yarn. For example, smooth yarns can generally be prepared better by inserting the yarn into the bobbin tip, since, when preparing for the application of the winding, the yarn may be detached from the spinning bobbin during the transport from the preparation device to the station and become entangled in the transport path. Whereas particularly rough yarns generally have good adhesion when they are wound as an upper loop on the bobbin tip with only a slight risk of detachment during transport. However, other parameters or technical properties, such as, for example, the twist and titer of the finished yarn, may also influence the optimal type of preparation.
In a further alternative embodiment, the preparation type of the spinning bobbins is stored on a respective storage medium.
When the preparation device comprises not only a reading device for reading information about the winding state of the respective spinning bobbin, but also a writing device, the type of preparation to be performed and in particular at which preparation position the yarn end or the number of windings wound is also stored on the storage medium belonging to the spinning bobbin. This is advantageous in particular with regard to the possibility of a gapless tracking during the entire production process.
The second aspect of the invention thus relates to a preparation device for preparing a spinning bobbin for a subsequent rewinding process at a workstation of a winding machine, the winding machine having an automatic bobbin transport system, wherein in the preparation device the yarn end is released from the spinning bobbin, is gripped and is positioned in a preparation position, wherein the spinning bobbin is transported on a transport medium within the bobbin transport system, and the spinning bobbin or the transport medium comprises a storage medium with information relating to the respective spinning bobbin.
The proposed preparation device is characterized in that the control device is designed to store different winding states of the spinning bobbins and can assign a respective preparation type of the spinning bobbins to the respective winding state, including a preparation position for the yarn end, and that at least one reading device is provided for reading and forwarding information stored on the storage medium about the winding state of the spinning bobbin provided thereon to the control device, and that the comparison of the winding state information with the stored winding state takes place in the control device, and that the control device initiates the preparation type assigned to the respective winding state in the preparation device.
In this way, the preparation device reacts to the different winding states of the spinning bobbins with different preparation types as required. That is, the preparation type can be adapted to the winding state or the state of the spun yarn bobbin. The preparation type may include the preparation position of the yarn on the spinning bobbin and/or the number of upper loops wound on the bobbin tip for the yarn handling and guiding components of the winder station. The winding state in the context of the present invention means, for example, the yarn quantity or the associated batch of yarn on the spinning bobbin. The winding state can also be a state of the spinning bobbin, for example, because the spinning bobbin does not catch the yarn successfully and is not unwound, i.e. is present in the entire initial yarn quantity, or the yarn end cannot be caught again at the station after the yarn break and the spinning bobbin is thus not completely unwound. The information is stored on a storage medium, and the individual spinning bobbins are discharged from the stations and possibly sent back to the preparation device.
The control device, which stores the winding state and the preparation type and which compares the information read from the storage medium about the winding state of the respective spinning bobbin with the information stored therein, can be, for example, a workstation computer or a central control unit within the scope of the invention. A separate computing unit within the preparation device is likewise conceivable. It is only important for the invention that a control unit which is set up correspondingly for this purpose is used.
Although the preparation device in the prior art performs the preparation type for all the spinning bobbins, the preparation device of the present invention may vary between three preparation types. The inventive preparation device is more efficient and has a higher beat efficiency than a preparation device in which the upper loop is always formed, since the placement of the upper loop takes in principle more time than the placement of the yarn in the bobbin tip. Nevertheless, if necessary and meaningful, an upper coil may be formed. In all other spinning packages, the yarn is placed in the bobbin tip.
Another advantage is that the waste yarn is reduced compared to a preparation device that always forms an upper loop. The upper loop is gripped, unwound, sucked and cut off in the station by the yarn handling and guiding means, the yarn end is then connected with the yarn end present on the station and the winding process is started. When only the winding state thereof makes the upper winding of the yarn bobbin, which is necessary as the upper winding wound yarn, be prepared, the occurrence of waste yarn can be reduced as a whole. But nevertheless the upper coil can in principle be formed if desired.
In addition to the reading device, a writing device is advantageously provided which, after the preparation of the spinning bobbins has been carried out, stores the preparation type on the storage medium and, if necessary, the number of coils.
Thus, the respective type of preparation performed may be stored on the storage medium and understood later. This is particularly advantageous in terms of gapless product tracking in the industry 4.0 sense.
A third aspect of the invention therefore relates to a winding machine with a preparation device for preparing a spinning bobbin for a subsequent rewinding process at a workstation of the winding machine, the winding machine having an automatic bobbin transport system, wherein, in the preparation device, a yarn end is released from the spinning bobbin, accommodated and positioned in a preparation position, wherein the spinning bobbin is transported on a transport medium in the bobbin transport system, and wherein the spinning bobbin or the transport medium comprises a storage medium with information about the respective spinning bobbin.
The winder is characterized in that the preparation device is designed according to one of the previous embodiments.
The advantages and effects described in connection therewith can be obtained thereby.
Other features and advantages of the invention come from the following description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, illustrating important details of the invention, and the claims. Some individual features may themselves be implemented in preferred embodiments of the present invention, alone or in any combination of multiple.
Drawings
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 shows schematically a combination of a ring spinning machine and a winding machine, wherein a preparation device for a spinning bobbin according to the invention is installed in the region of a bobbin transport system of the winding machine.
List of reference numerals
1. Ring spinning machine
2. Winding machine
3. Connection system
4. Station
5. Bobbin conveying system
6. Yarn bobbin supply section
7. Bobbin feedback section
8. Saving section
9. Transverse conveying section
10. Preparation segment
11. Branching section
12. Preparation device
13. Reading device
14. Writing device
15. Signal control line
16. Sensor device
17. Signal line
18. Control device
Detailed Description
Fig. 1 shows schematically in a top view an embodiment for a combination between a ring spinning machine 1 and a winding machine 2.
As is known per se and therefore only schematically indicated by the arrow, the conveying systems of the two textile machines are joined by a connecting system 3. The transport system installed in the region of the ring spinning machine 1 is not described in detail, since it is known on the one hand and is not the subject of the application on the other hand.
The bobbin transport system 5 arranged in the region of the winding machine 2 is provided, as is usual per se, with various transport sections, in the illustrated embodiment for example with a spinning bobbin supply section 6, a bobbin return section 7, a reversibly driven storage section 8 and a transverse transport section 9 to the station 4, wherein the transverse transport sections 9 can each be provided in the region of their waiting positions with a sensor device 16 which is connected by means of a signal line 17 to a control device 18 of the winding machine 2.
Furthermore, a so-called preparation section 10 is connected to the spinning bobbin supply section 6, which is connected on the end side via a branching section 11 to the storage section 8 or in turn to the spinning bobbin supply section 6. In the region of the preparation section 10, a preparation device 12 for the spinning bobbins is arranged.
In the preparation device 12, the spinning bobbin produced on the ring spinning machine 1 is prepared in such a way that it can then be processed, i.e. rewound, in the station 4 of the winding machine 2. The preparation device 12 can have the structure described in DE4424462A1, for example. It is only important for the invention that the preparation device 12 can prepare the yarn not only in the preparation position as an upper loop on the bobbin, but also in the preparation position as a yarn entering the bobbin tip, or in a combination of both preparation types, so that the preparation device 12 can finally perform three preparation types.
The preparation device 12 is connected to a control device 18 of the winding machine 1 via a signal control line 15. The preparation device 12 comprises a reading device 13 by means of which the data stored on the storage medium about the respective spinning bobbins and in particular about the winding state can be read. The data are forwarded to the control means 18 and a comparison takes place between the currently read winding status and the winding status stored in the control means 18.
If the yarn package, which has not yet been completely unwound, enters the preparation device 12, for example because the yarn end cannot be gripped again at the station 4 after the yarn break and the amount of remaining yarn on the yarn package is below a predetermined limit value, a preparation type assigned to this wound state is performed and the yarn is deposited above the winding on the bobbin tip. The spun yarn packages are then fed to a station 4 of the winding machine 2 in order to be completely unwound there.
The preparation device 12 can optionally also comprise a writing device 14, by means of which the type of preparation performed and in particular at which preparation position the yarn is laid on the spinning bobbin and thus ready can be stored.
Claims (10)
1. Method for preparing a spinning bobbin for a subsequent rewinding process at a station (4) of a winding machine (2), the winding machine (2) having an automatic bobbin tube transport system (5), wherein in a preparation device (12) yarn ends are separated from the spinning bobbin, caught and positioned in a preparation position, wherein the spinning bobbin is transported on a transport medium in the bobbin tube transport system (5), and the spinning bobbin or the transport medium comprises a storage medium with information concerning the respective spinning bobbin, characterized in that in a first step different winding states of the spinning bobbin are defined and respectively assigned a preparation type comprising a preparation position for yarn ends, in a second step different winding states together with their respective preparation type are stored in a control device (18), in a third step information concerning the respective winding state of the spinning bobbin is read in the preparation device (12), in a fourth step the information concerning the winding state of the spinning bobbin is assigned to a winding tip and the yarn is stored in a fifth step by comparing the read state with the winding state of the spinning bobbin and the preparation tip.
2. The method for preparing a spinning bobbin according to claim 1, wherein in case of forming an upper coil, the number of the upper coils is a part of the preparation type.
3. The method of preparing a spinning package of claim 1, wherein one characteristic representative of the winding condition is the amount of yarn on the spinning package.
4. A method of preparing a spinning bobbin according to claim 1, characterized in that one characteristic representing the winding state is the number of times the spinning bobbin is re-fed to the station (4) of the winder (2) and yarn cannot be caught.
5. A method of preparing a spinning bobbin according to claim 1, characterised in that one characteristic representing the winding condition is an unfinished spinning bobbin discharged from the station (4) of the winder (2).
6. The method of preparing a spinning package according to claim 1, wherein one characteristic representing the winding status is the belonging lot of yarn on the spinning package.
7. The method of preparing a spinning bobbin of claim 1, wherein the preparation type of the spinning bobbin is stored on the corresponding storage medium.
8. A preparation device (12) for preparing a spinning bobbin for a subsequent rewinding process at a station (4) of a winding machine (2), the winding machine (2) having an automatic bobbin tube transport system (5), wherein in the preparation device (12) a yarn end is separated from the spinning bobbin, is gripped and positioned in a preparation position, wherein the spinning bobbin is transported on a transport medium in the bobbin tube transport system (5) and the spinning bobbin or the transport medium comprises a storage medium with information relating to the respective spinning bobbin, characterized in that a control device (18) is set up for storing different winding states of the spinning bobbin and a spinning bobbin preparation type assigned to the respective winding state, the spinning bobbin preparation type comprising a preparation position for the yarn end, at least one reading device (13) is provided for reading the information relating to the winding state stored on the storage medium and forwarding the information relating to the winding state stored on the storage medium to the control device (18) to the control state, and the control device (18) initiates the preparation type assigned to the respective winding state in the preparation device (12).
9. A preparation device (12) for preparing a spinning bobbin according to claim 8, characterized in that a writing device (14) is provided in addition to the reading device (13), the writing device (14) storing the preparation type on the storage medium after the preparation of the spinning bobbin has been performed and the number of coils as required.
10. A winding machine (2), which winding machine (2) has a preparation device (12) for preparing a spinning bobbin for a subsequent rewinding process at a station (4) of the winding machine (2), which winding machine has an automatic bobbin transport system (5), wherein in the preparation device (12) the yarn end is detached from the spinning bobbin, caught and positioned in a preparation position, wherein the spinning bobbin is transported on the bobbin transport system (5) on a transport medium, and wherein the spinning bobbin or the transport medium comprises a storage medium with information concerning the respective spinning bobbin, characterized in that the preparation device (12) is designed according to claim 8 or 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020131278.4A DE102020131278A1 (en) | 2020-11-26 | 2020-11-26 | Process and preparation device for preparing spinning cops |
| DE102020131278.4 | 2020-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114538206A CN114538206A (en) | 2022-05-27 |
| CN114538206B true CN114538206B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111404055.5A Active CN114538206B (en) | 2020-11-26 | 2021-11-24 | Method and device for preparing spinning bobbins |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2022084558A (en) |
| CN (1) | CN114538206B (en) |
| DE (1) | DE102020131278A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114538206A (en) | 2022-05-27 |
| JP2022084558A (en) | 2022-06-07 |
| DE102020131278A1 (en) | 2022-06-02 |
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Effective date of registration: 20231017 Address after: Germany Yubach-Parenberg Applicant after: Lida Automatic Winder Co.,Ltd. Address before: Bach-Palenberg, Germany Applicant before: Saurer Spinning Solutions GmbH & Co.KG |
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