JP2012091936A - Working part of textile machine manufacturing cross-wound package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working part which ensures almost dust-free rewinding from a thread feeding bobbin to a cross-wound package, while a pitch interval of the working part is formed to be less than that of the working part conventionally used.SOLUTION: The working part 1 has a thread guide path 6 which surrounds a thread running path and is composed of a plurality of parts. The thread guide path 6 has accommodating housings 18 and 21 for various thread monitoring/processing devices, or accommodating categories 31, 32 and 33. However, the thread guide path 6 extends between the thread feeding bobbin 2 positioned at a feeding position AS and a winder 4, and a negative pressure is applied to for each predetermined category if necessary. Thus, negative pressure flow occurs on the thread guide path 6, and the direction of the negative pressure flow can be specified to be set.

Description

  The present invention relates to a working unit or a yarn winding unit of a textile machine for manufacturing a traverse winding package, a yarn storage device arranged in a range of a feeding position of a yarn feeding bobbin, and a yarn installed in a range of a yarn traveling path The present invention relates to a type in which a monitoring / processing device and a winding device for producing a twill winding package are provided.

  In the working part of the textile machine that manufactures the twill-winding package, that is, the yarn winding part, a yarn feeding bobbin having a relatively small amount of yarn material, for example, a spinning cup, which is manufactured in a ring spinning machine is wound back, and a remarkably large yarn is wound. A traverse package having a volume is formed.

  The working part of such a textile machine has, among other things, various yarn monitoring and processing devices in the range of the yarn travel path, as described, for example, in DE 102005001093. Using these yarn monitoring and processing devices, the running yarn is monitored during the rewinding process, for example for the presence or absence of yarn defects. When a yarn defect is found that exceeds a certain limit, this defect is cut off and is almost the same as the yarn, usually a pneumatically formed yarn connection, the so-called “yarn splicing”. Part ".

  Each of the working units further has a winding device. The winding device includes a package frame for rotatably holding the traverse winding package, and a yarn guide drum for traversing the yarn to be rotated, for example, by rotating the traverse winding package in a frictional connection manner. Such working units generally further comprise a lower thread sensor, a thread tensioner, a thread clearer or slab catcher with a thread cutting device, a thread tension sensor, a thread catching nozzle, and a paraffin applicator. .

  In order to reconnect the yarn ends after a yarn break or after a controlled clearer cut, such a working part comprises a yarn splicing device, a swivel-supported suction pipe and a swivel-supported gripper. And a thread handling device in the form of a tube. The suction pipe and the gripper pipe are connected to a machine-specific cross-girder negative pressure bar, and deliver the yarn end returned by the traverse package or the yarn feeding bobbin to the yarn splicing device as necessary.

  The working part of a textile machine for producing a traversing package, known from DE 19617525, is equipped with a so-called bell-shaped blower (Blasglocke) in the range of the feeding position of the yarn feeding bobbin. Yes. The bell-type blow device dissociates the yarn end from the yarn supplying bobbin and delivers it to the bell-type suction device via a relatively short tubular connection. In the bell-type suction device, the yarn end portion is taken up by a gripper tube loaded with a negative pressure, that is, under a negative pressure, and delivered to a yarn splicing device.

  A device in which the yarn end of the yarn feeding bobbin is delivered to the gripper tube via a short tubular connection is also described in DE 102005018381. The feeding assist device described in this specification includes a tubular element that can be lowered so as to cover a winding tube of a yarn feeding bobbin on a specified scale, and a fixed position, also tubular, positioned above the winding tube. And a yarn guide device formed on the surface.

  An adapter for connecting the gripper pipe is disposed on the end side of the yarn guide device as viewed in the yarn traveling direction. This adapter is configured so that the gripper tube to which negative pressure is applied is connected to the yarn guide device without leakage when the yarn peeled from the yarn feeding bobbin is taken up.

  The feeding auxiliary device supported so as to be movable in the vertical direction is further surrounded by a dust removing device capable of negative pressure loading. This dust remover continuously sucks the fluff generated when the yarn is pulled out from the yarn feeding bobbin during the rewinding process.

  The working part of the textile machine for producing the traverse package described above has proved to be advantageous in principle at the actual use site, but has the following drawbacks. In other words, despite the use of the tubular yarn guide device and the dust removal device positioned in the range of the yarn feeding bobbin, it is sufficiently ensured that the working part is contaminated with dust particles and fluff over time. It cannot be avoided. Furthermore, the constructional structure of this working part is relatively wide. Because, as explained above, the drive for the yarn handling device, in particular the suction nozzle and the gripper tube, used after the winding interruption to transport the yarn end to the yarn splicing device is very bulky It is because it has a structure. As a result, the pitch interval between the working parts or the yarn winding parts arranged side by side in the textile machine becomes relatively large.

German Patent Application Publication No. 102005001093 German Patent Application Publication No. 19617525 German Patent Application No. 102005018381

  Starting from the above-mentioned known prior art, the problem that forms the basis of the present invention is to improve the working part of a textile machine for producing a traverse wound package of the type described at the beginning, from a yarn feeding bobbin to a traverse winding package. It is intended to provide a working part in which almost dust-free rewinding is ensured and the pitch interval of the working parts is formed smaller than that in the working part conventionally used.

  In order to solve this problem, in the configuration of the present invention, the working unit has a yarn guide passage composed of a plurality of portions surrounding the yarn traveling path, and the yarn guide passage includes various yarn monitoring / processing devices. The yarn guide passage extends between the yarn feeding bobbin positioned at the feeding position and the winding device, and is provided for each predetermined segment as necessary. A negative pressure is applied so that a negative pressure flow is generated in the yarn guide passage, and the flow direction of the negative pressure flow is defined and settable.

  According to the present invention, there is provided a plurality of yarn guide passages surrounding the yarn traveling path, and the yarn guide passages have storage housings or storage sections for various yarn monitoring / processing devices. However, the yarn guide passage extends between the yarn feeding bobbin positioned at the feeding position and the winding device, and is negatively loaded, i.e., subjected to negative pressure, for each predetermined section as necessary. Thus, a negative pressure flow is generated in the yarn guide passage, and the flow direction of the negative pressure flow can be defined and set. The use of such a yarn guide passage has the following advantages. That is, after the winding is interrupted, the transfer of the yarn end portion generated by the yarn breakage to the yarn splicing device can be ensured relatively easily and reliably. In this case, it is possible to eliminate the need for a swivel-supported suction nozzle and a swivel-supported gripper tube, which have been widely used in the range of the working unit.

  By eliminating the need for suction nozzles and gripper tubes, and in particular no bulky drive units, the working part according to the invention has a significantly smaller construction width than conventional working parts.

  Furthermore, by incorporating a yarn monitoring / processing device in the yarn guide passage that surrounds the yarn traveling path, the yarn to be rewound can be encapsulated with respect to the entire circumference of the yarn traveling path during the winding process. Achieved. This is very advantageous particularly with respect to the occurrence of dirt in the working part.

  During the rewinding process, the negative pressure generated in the yarn guide passage, for example, when passing through the fluff generated during suction of the yarn from the yarn feeding bobbin and / or various yarn monitoring and processing devices and / or Dust generated when winding the yarn around the traverse package is prevented from being distributed to the periphery, resulting in a significant reduction in dust contamination. This means that the time between cleaning intervals that have been relatively frequent in textile machines can be significantly extended. If particularly good material conditions are provided, the use of conventional general purpose traveling cleaners can be eliminated in some cases.

  As described in claim 2 and claim 3, in an advantageous configuration, a plurality of suction air pipe segments are connected to the yarn guide passage. These suction air pipe pieces are connected in a pneumatic manner to one suction air passage of the length of the machine via a throttle plate or orifice disk having a plurality of suction openings which are defined and positionable. Is possible.

  That is, by appropriately adjusting the orifice disk, the suction pipe piece, and hence the yarn guide passage, can be loaded with negative pressure as defined respectively. The orifice disk is in this case combined with the closing restrictor or orifice according to claim 9 provided on the suction base by the drive or with the control flap arranged on the suction head receiving housing according to claim 11. The suction air flow can be controlled inside the yarn guide passage, which can be adjusted in a defined manner with respect to its flow direction.

  In order to simplify the production of the yarn guide passage and to keep the production costs as low as possible, it is advantageous if the yarn guide passage is formed of a plurality of parts as described in claim 4. The area of the yarn guide passage which guides the yarn during the winding process is formed as a metal die-cast part, whereas, for example, the suction air tube piece is advantageously formed as a plastic part. Forming the range for guiding the yarn during the winding process as a metal die-cast part has the following advantages. That is, by using such a die cast part, a complicated geometric shape can be realized extremely well. In this case, the generated tolerances can be reduced to a minimum. Such a die-cast part preferably has a wear resistance because it is directly loaded by the running thread during the winding process, for example a ceramic thread guide eye or thread guide. Etc. can be incorporated without any problem, so that it is possible to eliminate the use of a relatively expensive yarn guide thin plate that has been conventionally used in the range of the working section.

  In a further advantageous configuration according to claim 5 and claim 6, at least a partial area of the yarn guide channel comprises a cover element, which is made of a transparent plastic. With such a configuration, not only can the fault location be easily located during the winding process, but such fault location works directly and immediately after exposure after removal of the cover element which can be easily opened. There is an advantage that you can. Since the cover element can be removed without problems, for example, the cleaning operation can be easily carried out without a great waste of time.

  Furthermore, as described in claim 7, a storage housing for the yarn splicing device is incorporated in the yarn guide passage, and the storage housing is for sucking the lower thread coupled to the yarn feeding bobbin. It is advantageous if the first suction air tube piece and a second suction air tube piece for sucking the upper thread from the traverse package are connected. That is, by applying a negative pressure to the first suction air pipe piece or the second suction air pipe piece correspondingly in a pneumatic manner, the upper yarn and the lower yarn are sequentially and reliably transferred to the yarn splicing device. In this yarn splicing device, the yarn can be spliced as usual to form a single consistent yarn again.

  The yarn guide passage further includes a suction base that is telescopically supported so as to be telescopically extendable on the inlet side, and the suction base can be lowered so as to cover the yarn feeding bobbin for accommodating the yarn. ). The suction base is lowered in the direction of the yarn feeding bobbin to accommodate the lower thread and is positioned above the spool, in which case a relatively small gap is provided between the spool and the suction base. The negative pressure created in the yarn guide passage creates a high flow rate in this relatively small gap, which significantly facilitates yarn catch. After the yarn catch, the suction base is again moved away from the area of the bobbin and subsequently takes an advantageous position for the winding process above the yarn feeding bobbin positioned in the unwinding position.

  Another advantage of a suction base that is telescopically supported in a telescopic manner is that repair switching can be easily performed as required. That is, when the yarn breakage occurs in the yarn feeding bobbin range, the yarn feeding bobbin no longer needs to be immediately led out from the feeding position, and the working unit first automatically lowers the lower yarn again by lowering the suction base. One can attempt to dissociate from the yarn feeding bobbin and prepare for a new splicing process.

  The suction base is advantageously provided with a closing restrictor or orifice that allows the inlet of the yarn guide passage to be closed pneumatically as claimed in claim 9. Such a closure of the yarn guide passage is necessary, for example, when it is desired to disengage the upper yarn from the trawl package in a pneumatic manner by a suction head, accommodate it and transfer it to the yarn splicer via the yarn guide passage.

  In an advantageous configuration, the closing orifice is further formed such that it additionally functions as a residual thread (claim 10). Such a function can be realized relatively simply by the overstroke movement of the closed orifice.

  As described in claim 11, the yarn guide passage has a suction head housing on the outlet side, and the suction head is supported by the suction head housing so as to be pivotable within a limited range. A control flap that can be positioned at various positions and a third suction air pipe piece are connected. The third suction air tube piece is used whenever a lot change is performed and the lower yarn coupled to the yarn supply bobbin must be transferred to the yarn handling device of the traverse package change unit.

  Whether the suction head is swiveled to a first position where the suction head opening is positioned just in front of the surface of the traverse package held in the winding device as claimed in claim 12 Alternatively, after the yarn is accommodated, the yarn strand is swung to a second position where the yarn strand is stretched between the winding package and the opening of the suction head. The suction head is positioned in the first position when it is desired to receive the upper thread from the surface of the traverse package that rotates in the feeding direction, and for the traverse package replacement unit when the traverse package is replaced. The suction head is in the second position when the bobbin thread coupled to the yarn feeding bobbin has to be prepared, i.e., when it is desired to stretch the yarn strand between the winding package and the suction head opening. .

  Furthermore, the suction head is formed of two parts as claimed in claim 13, and both suction head parts are arranged along the pivot axis of both suction head parts to form a yarn advance gap. It is supported on the swivel shaft of the suction head so as to be movable in the direction. That is, before the start of the winding process, the two suction head portions are first moved away from each other. In this case, the recombined yarn passes through the space between the suction head portions to the yarn guide drum. And then slides into the thread guide groove of the thread guide drum.

  As already mentioned in connection with the construction of claim 11, the control flap arranged in the suction head housing can be selectively positioned in three positions (claim 14). In the first position, the control flap is pivoted away from the yarn travel path as much as possible, which in this case forms the winding position. In the winding position, the yarn coming out of the yarn supplying bobbin and coming through the yarn guide passage passes through the suction head housing housing and is wound around the yarn guide drum without any problem. In the second position, i.e. the suction position, the control flap seals the suction head against the suction head housing. At this time, a sufficient negative pressure is generated in the opening of the suction head by the action of the control flap. This is absolutely necessary to accommodate the yarn wound on the surface of the twill package. The third position of the control flap forms a closed position. In this third position, the yarn guide passage is pneumatically sealed in the direction of the suction head. This closed position is particularly used when it is desired to receive the lower thread from the yarn feeding bobbin and continue to transfer it to the splicing device.

  Furthermore, as described in claims 15 and 16, in a further advantageous configuration of the invention, a yarn feeder is installed in the area of the suction head receiving housing, the yarn feeder being used for lot change. In some cases, the yarn coupled to the yarn feeding bobbin is used to prepare for a traverse package replacement unit.

  The yarn feeder is in this case formed as a feeder rod. The yarn guide element provided on the feeder rod is positioned in the range of the suction opening of the third suction air pipe piece. The feeder rod can be moved vertically if necessary, i.e., to lift the yarn into the range of the traverse package exchange unit, in which case the feeder rod can feed the yarn into the yarn handling device of the traverse package exchange unit. Prepare for.

It is a perspective view which shows the thread | yarn guide channel | path which consists of several parts surrounding the thread | yarn driving path arrange | positioned in the range of the working part of the textile machine which manufactures a traverse winding package. It is the schematic which shows the suction head accommodation housing of the yarn guide path provided with the suction head supported so that rotation is possible, and the control flap arrange | positioned in the suction head accommodation housing in the suction position of a control flap. FIG. 2B is a schematic view showing the suction head receiving housing shown in FIG. 2A in the closed position of the control flap. It is the schematic which shows the suction head accommodating housing shown to FIG. 2A in the winding position of a control flap. It is a side view which shows a suction head in the state at the time of adjustment of the yarn strand required at the time of a twill winding package replacement | exchange. It is a front view which shows the suction head provided with the both suction head parts supported so that the movement to an axial direction was possible. It is a figure which expands and shows the suction head accommodation housing provided with the suction opening of the 3rd suction air pipe piece, and the thread | yarn feeder arrange | positioned in the range of this suction opening. FIG. 6 is a schematic view showing a drawn-out yarn feeder having a position prepared for a yarn handling device of a traverse package exchange unit coming from a yarn feeding bobbin.

  In the following, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a working unit of a textile machine for manufacturing a traverse winding package, that is, a working unit (yarn winding unit) 1 of an automatic traverse winder in this embodiment.

  Such an automatic traverse winder usually has a number of identical working parts 1. In these working sections 1, the spinning bobbin 2, which is generally produced in a ring spinning machine, having a relatively small amount of yarn material is rewound to form a large volume traverse winding package 5. Is done.

  The finished traverse package 5 is delivered to a traverse package transporter (not shown) of the machine length (ie extending over the length of the textile machine) by a service unit that continues to work automatically, for example the traverse package changer. And transported to a package loading station or the like disposed on the machine end side.

  The working part or the yarn winding part of such an automatic winding winder is provided with a circular magazine in which several spinning cups can be stocked, or the automatic winding winder is in the form of a bobbin / winding tube conveying system. Has a logistic device. In such a bobbin / winding tube transfer system known per se, a spinning cup or an empty tube arranged on the transfer tray circulates in a vertical direction.

  As shown in FIG. 1, the supplied yarn feeding bobbin 2 is positioned at the feeding position AS within the range of the working unit 1, and is wound back to the traverse package 5 at the feeding position AS.

  Each working part 1 has various yarn monitoring and processing devices for this purpose. These yarn monitoring and processing devices are monitored for the presence or absence of yarn defects during the rewinding process of the yarn 29 and ensure that the detected yarn defects are removed.

  The working part 1 of such an automatic traverse winder comprises, for example, a winding device 4, a yarn coupling device 8, preferably in the form of a pneumatic splicing device, a yarn tensioner 9, and a yarn clearer or slab. A catcher 10 and a yarn tension sensor 35 are provided. Further, such a working unit 1 may include a paraffin coating device (not shown). Each of the winding devices 4 of the working unit 1 includes a package frame 11 that is movably supported around a turning shaft 30 and a traverse package driving device. For example, a yarn guide drum 34 is provided, and this yarn guide drum 34 rotates the traverse package 5 in a frictional connection manner. By the action of the yarn guide drum 34, the yarn 29 wound around the package is traversed simultaneously.

  As can be further understood from FIG. 1, a yarn guide passage 6 surrounding the yarn traveling path extends between the yarn feeding bobbin 2 positioned at the feeding position AS and the winding device 4. The yarn guide passage 6 is loaded with negative pressure at a specified scale as required. The yarn guide passage 6 is provided with a feeding auxiliary device 3 in the form of a suction base 19 formed to be telescopic and extendable on the inlet side. That is, the suction base 19 is supported by the drive device 36 so as to be movable in the vertical direction, and can be lowered as needed to at least partially cover the yarn feeding bobbin 2, for example, to accommodate the yarn end. .

  The yarn guide passage 6 has a storage section 33 for the yarn tensioner 9 behind the suction base 19 when viewed in the yarn traveling direction F, that is, downstream, and further to this storage section 33, a yarn splicing device is provided. 8 has a relatively large containment housing 18. The yarn guide passage 6 further includes accommodation sections 32 and 31. These accommodating sections 32 and 31 are arranged on the downstream side of the accommodating housing 18 when viewed in the yarn traveling direction F. The slab catcher 10 or the yarn tension sensor 35 is installed in the storage sections 32 and 31. In this range, a housing (not shown) for the paraffin applicator may also be incorporated in the yarn guide channel 6.

  On the outlet side, the yarn guide passage 6 has a suction head housing 21. A suction head 22 is arranged in the suction head accommodating housing 21 so as to be capable of turning within a limited range.

  The suction head housing 21 further has a control flap 23. As shown in FIGS. 2A, 2B, and 2C, the control flap 23 can be positioned at various positions according to operating conditions.

  The suction head accommodating housing 21 is connected to a suction air passage 17 extending over the length of the machine via a suction opening 28 and a suction air pipe piece 14 connected to the suction opening 28. The suction air pipe pieces 14 and the suction air pipe pieces 12 and 13 that connect the housing 18 of the yarn splicing device 8 to the suction air passage 17 are selectively loaded with a negative pressure via, for example, a throttle plate or an orifice disk 15. That is, negative pressure can be applied. That is, the orifice disk 15 that is rotatably supported has a plurality of suction openings 16 that can be defined and positioned. Depending on the position, one or more of the first to third suction air pipe pieces 12, 13, 14 are connected to the suction air passage 17 in a pneumatic manner by the suction opening 16. It becomes like this.

  Naturally, instead of the orifice disk 15 shown in FIG. 1, other control devices are also conceivable in connection with the suction air pipe pieces 12, 13, 14. For example, the suction air pipe pieces 12, 13, and 14 can be connected to the suction air passage 17 by separate dedicated valve devices or the like.

  2A, 2B, and 2C are partial views of the suction head accommodating housing 21 that is disposed on the end side of the yarn guide passage 6. FIG. The suction head 22 is shown in its winding position, and the control flaps 23 are positioned at different positions.

  In FIG. 2A, the control flap 23 is shown in the suction position B.

  At the suction position B, a negative pressure is applied to the suction head 22 via the yarn guide passage 6 and the suction head housing 21 by the control flap 23. This is always necessary, for example, when the upper thread is received from the surface of the traverse package 5.

  In FIG. 2B, the control flap 23 is shown in its closed position C. When negative pressure is required at the suction base 19 disposed on the inlet side of the yarn guide passage 6 in order to receive the lower yarn from the yarn feeding bobbin 2, the control flap 23 is positioned at the closed position C.

  In FIG. 2C, the control flap 23 is shown in the winding position A. The control flap 23 is positioned at the winding position A during the winding process. The winding position A allows the yarn 29 to be wound directly on the yarn guide drum 34 without traveling through the suction head 22.

  FIG. 3 shows the situation in the range of the winding device 4 at the time of changing the winding package, that is, if the yarn wound on the completed winding package 5 is not prepared for the yarn handling device of the winding package replacement unit. The situation of the range of the winding device 4 in the case of not being shown is shown.

  As can be seen from the drawing, the suction head 22 disposed in the suction head accommodating housing 21 so as to be capable of swiveling is positioned at a second position where the suction head 22 is turned away from the traverse package 5 after the yarn is accommodated. This creates a yarn strand 24 between the traverse package 5 and the opening of the suction head 22. This yarn strand 24 is received and cut by a corresponding yarn handling device provided in the traverse package change unit before the traversing package 5 is ejected from the winding device 4 and is then cut into a new traverse in the package frame 11. After positioning the wound package winding, it is applied to the new traverse package winding.

  FIG. 4 shows a front view of a suction head housing housing 21 having a suction head 22 consisting of two parts. As indicated by the arrows X and Y, the suction head portions 22A and 22B can be separated in a direction away from each other in the axial direction. In this case, a gap is formed between the two suction head portions 22A and 22B, and the yarn 29 formed again after the yarn splicing process through the gap again on the yarn guide drum 34 before the rewinding process is resumed. You can ride in a sliding manner.

  5 and 6 show the yarn feeder 25 installed in the area of the suction head accommodating housing 21. FIG. The yarn feeder 25 is formed as a feeder rod 26 as shown in FIG. 6, and this feeder rod 26 lifts the yarn 29 coupled to the yarn feeding bobbin 2 after batch exchange or lot exchange, If so, the yarn 29 can be prepared for the yarn handling device of the traverse package change unit or taken up by the yarn handling device of the traverse package change unit.

  The feeder rod 26 is provided with a thread guide element 27 on the end side, and the thread guide element 27 sucks the suction air pipe piece 14 provided in the suction head housing housing 21 in a resting state as can be seen from FIG. It is positioned in the range of the opening 28.

The working mode of the working part with the yarn guide passage according to the present invention is as follows:
If a winding interruption occurs during a standard winding operation, for example due to a thread break or controlled clearer cut, the so-called “upper thread” is wound on the surface of the traverse package 5, whereas the so-called “lower” The “yarn” remains clamped in the yarn tensioner 9 or falls again downward onto the yarn feeding bobbin 2.

  In order to be able to start the winding process again following such a winding interruption, the upper and lower threads must first be recombined to form a single consistent thread. For this purpose, both the lower thread and the upper thread have to be brought into and introduced into the splicing device 8 arranged in the housing 18 of the yarn guide passage 6. The splicing device 8 then joins the upper and lower thread ends into a single thread again, preferably after removal of the possibly present yarn defects.

  In order to accommodate the lower thread, the orifice disc 15 is first adjusted, in which case the first suction air pipe piece 12 is fed into the suction air passage 17 of the length of the machine via the suction opening 16 of the orifice disc 15. The second and third suction pipe pieces 13 and 14 remain closed while being connected to communicate in a matic manner. Further, the control flap 23 provided in the suction head accommodating housing 21 is positioned at the closed position C (FIG. 2B), and the closed orifice 20 provided in the suction base 19 is opened. In this mutual arrangement relationship, a negative pressure flow directed from the suction base 19 to the suction air passage 17 via the first suction air pipe piece 12 occurs in the range of the yarn guide passage 6. Usually, the lower thread held by the thread tensioner 9 is released, and then, under the influence of the negative pressure flow, is guided by the corresponding guide contour in the thread guide path 6 and slides to the suction air path 17. At this time, the lower thread is positioned in an orderly manner in the yarn splicing device 8 disposed in the housing 18 of the yarn guide passage 6.

  For example, the lower thread sensor 37 disposed in the range of the first suction air pipe piece 12 detects the presence of the lower thread and then starts capturing the upper thread. However, if the yarn end of the lower yarn falls onto the yarn feeding bobbin 2 after the yarn breakage, the lower yarn can be sucked from the yarn feeding bobbin 2 by lowering the suction base 19. Next, the lower thread reaches the suction air passage 17 through the yarn guide passage 6.

  That is, the lower thread accommodated from the yarn feeding bobbin 2 is also positioned in an orderly manner in the yarn splicing device 8. In order to assist the yarn peeling from the yarn feeding bobbin 2, the suction base 19 may further be equipped with a device that allows the introduction of a compressed air impact to the wound cone of the yarn feeding bobbin 2. This has a very advantageous effect on the yarn peeling behavior.

  In order to catch the upper thread wound on the surface of the traverse package 5, the second suction air pipe piece 13 communicates pneumatically with the suction air passage 17 of the length of the machine through the suction opening 16. The orifice disk 15 is adjusted so that the first and third suction air pipe pieces 12 and 14 remain closed.

  Further, the control flap 23 arranged in the suction head accommodating housing 21 is positioned at the suction position B, and the closing orifice 20 provided in the range of the suction base 19 is closed. In such a mutual arrangement relationship, a negative pressure flow directed from the opening of the suction head 22 to the suction air passage 17 through the second suction air pipe piece 13 is generated in the range of the yarn guide passage 6. By the action of this negative pressure flow, the yarn end portion of the upper yarn wound around the surface of the traverse winding package 5 is taken out from the traverse winding package 5 rotating in the feeding direction.

  The accommodated upper thread reaches the suction air passage 17 via the second suction air pipe piece 13, and is guided by a corresponding contour provided in the thread guide passage 6 at this time, like the lower thread. Then, it slides in an orderly manner to the yarn splicing device 8 arranged in the housing 18. The upper thread sensor 38, which is preferably installed in the area of the second suction air pipe piece 13, detects the thread, which in turn initiates the actual splicing process.

  The yarn catch of the upper yarn can also be assisted by additional means. For example, a suction head whose opening for accommodating the yarn is positioned just in front of the surface of the winding package can be pivoted slightly in a direction away from the surface of the winding package. The flow separation that occurs at this time generally facilitates yarn capture.

  When the upper yarn and the lower yarn are transferred to the range of the yarn joining device 8 and are positioned in the orderly state by the yarn joining device 8, the yarn tensioner of the yarn joining device 8 is closed, and the orifice disk 15 Since both the first suction air pipe piece 12 and the second suction air pipe piece 13 are adjusted to be connected in a pneumatic manner to the suction air passage 17 through the suction opening 16 of the orifice disk 15, Both the first suction air passage 12 and the second suction air pipe piece 13 are loaded with negative pressure. Based on the formed negative pressure, the upper thread and the lower thread are tensioned. Subsequently, the actual splicing process is carried out, the residual yarn is sucked out and the winding process is started anew.

  However, before the start of the winding process, the consistent thread 29, which is newly formed by the combination of the upper thread and the lower thread and still located in the suction head 22, must be released. For this purpose, first the control flap 23 arranged in the suction head receiving housing 21 is swiveled to its winding position A, and then both suction head portions 22A and 22B are slightly pulled apart in the direction away from each other in the axial direction. It is.

  When the two suction head portions 22A and 22B are pulled apart in the direction X or the direction Y, the yarn 29 drops onto the yarn guide drum 34 through the gap formed between the suction head portions 22A and 22B.

  Then, after the suction head 22 is closed, the winding process is started, in which case the suction head 22 is advantageously left positioned so that the yarn guide drum 34 is fully covered during the winding process. Become. This positioning of the suction head 22 on the high-speed yarn guide drum 34 on the one hand minimizes the risk of injury that can be caused by the rotating yarn guide drum 34, on the other hand. A gain in switching time is obtained. This is because, since the suction head 22 is already positioned at the yarn accommodation position, it is not necessary to first actively swing the suction head 22 to the yarn accommodation position when a new winding is interrupted.

  During the “standard” winding operation, the yarn 29 fed from the yarn feeding bobbin 2 positioned at the feeding position AS reaches the winding device 4 through the yarn guide passage 6 and this winding device. 4, the yarn 29 is wound to form the traverse package 5.

  In the illustrated embodiment, the thread 29 is in this case first of all a closed orifice 20 in which the suction base 19 of the thread guide passage 6 is opened, the suction base 19, the storage section 33, the storage housing 18, the storage section 32, Travels through 31 and the suction head housing 21. That is, the yarn 29 first passes through the suction base 19 of the yarn guide passage 6 along the path to the winding device 4, and then reaches the yarn guide passage section 33 that surrounds the yarn tensioner 9. The yarn 29 loaded by the disk of the yarn tensioner 9 to adjust the orderly yarn tension then reaches the housing 18 of the yarn splicing device 8 and is slabd at a distance from the yarn splicing device 8. Travel through the catcher 10. The slab catcher 10 is arranged in the corresponding receiving section 32 of the yarn guide passage 6 and inspects the yarn 29 for yarn defects.

  After passing through the slab catcher 10, the thread 29 reaches the receiving section 31. The accommodation section 31 is provided with a yarn tension sensor 35. The yarn tension sensor 35 is pressure-loaded by the yarn 29 and detects the current yarn tension.

  After overcoming the yarn tension sensor 35, the yarn 29 reaches the suction head housing 21 and rides on the yarn guide drum 34 alongside the opened control flap 23. The yarn guide drum 34 traverses the yarn 29 to be wound.

  Other parts of the yarn guide channel 6, in particular the housing 18 and the housing sections 33, 32, 31 are covered by a transparent cover element during the winding process. On the one hand, this cover element prevents the risk of adversely affecting the yarn from the outside, and on the other hand ensures that no contamination due to fluffing, dusting, etc. occurs in the working area during the winding process. .

  It is advantageous if the orifice disk 15 is adjusted during the winding process, for example so that the first suction air pipe piece 12 is always slightly negatively loaded. This has the following advantages. That is, the negative pressure flow generated in the yarn guide passage 6 through the first suction air tube piece 12 immediately discards, for example, fiber dust generated constantly in the yarn guide passage 6 immediately in this case. Dust generated in the area of the yarn bobbin and dust generated in the area of the traverse package are sufficiently sucked together.

  Of course, in an alternative alternative embodiment, it is also conceivable to load the yarn guide channel 6 with negative pressure only at predetermined intervals during the winding operation, thus saving energy.

  In order to transfer the yarn from the new yarn supplying bobbin 2 to the suction head housing 21 after the lot change, the orifice disk 15 is rotated. In this case, the first and second suction air pipe pieces 12 and 13 are closed. And the orifice disk 15 is rotated so that the third suction air pipe piece 14 is loaded with negative pressure through the suction opening 16. Further, the control flap 23 arranged in the suction head accommodating housing 21 is closed, and the closing orifice 20 provided in the suction base 19 is opened.

  In such a case, the yarn of the yarn feeding bobbin 2 is sucked up to the suction head housing housing 21 through the yarn guide passage 6, and a suction opening 28 provided in the suction head housing housing 21 and a third suction air pipe. It reaches into the intake air passage 17 via the piece 14. At the time of suction into the suction opening 28, the thread 29 slides along the thread guide element 27 of the thread feeder 25. The yarn feeder 25 continues to prepare the yarn 29 for the yarn handling device of the traverse package replacement unit.

  Of course, the present invention is not limited to the above-described embodiments, and may have other embodiments or equipment variations without departing from the general inventive concept.

  In place of the adjustably supported orifice disc 15 shown in FIG. 1, the suction air pipe segments 12, 13, 14 are, for example, suction air passages 17 via valve devices (not shown) arranged separately. It may be connected to.

  The closing orifice 20 arranged in the region of the suction base 19 does not necessarily have to be formed as a closing metal sheet pivotally supported as shown in FIG. 1, but can also be realized by another closing mechanism.

DESCRIPTION OF SYMBOLS 1 Working part 2 Yarn feeding bobbin 3 Feeding auxiliary device 4 Winding device 5 Twist winding package 6 Yarn guide passage 8 Yarn splicing device 9 Yarn tensioner 10 Slab catcher 11 Package frame 12, 13, 14 Suction air pipe piece 15 Orifice disk 16 Suction Opening 17 Suction air passage 18 Storage housing 19 Suction base 20 Closed orifice 21 Suction head storage housing 22 Suction head 23 Control flap 24 Yarn strand 25 Yarn feeder 26 Feeder rod 27 Yarn guide element 28 Suction opening 29 Yarn 30 Rotating shaft 31, 32, 33 Storage Section 34 Thread Guide Drum 35 Thread Tension Sensor 36 Drive Device 37 Lower Thread Sensor 38 Upper Thread Sensor AS Feeding Position F Thread Traveling Direction B Suction Position C Closed Position A Winding Position

Claims (16)

  A working section of a textile machine for manufacturing a traverse winding package, a yarn storage device arranged in a range of a feeding position of a yarn feeding bobbin, a yarn monitoring / processing device installed in a range of a yarn traveling path, and a traverse winding In the type provided with a winding device for producing a package, the working part (1) has a yarn guide passage (6) composed of a plurality of parts surrounding the yarn traveling path, The yarn guide passage (6) comprises storage housings (18, 21) or storage sections (31, 32, 33) for various yarn monitoring and processing devices, provided that the yarn guide passage (6) The yarn guide extends between the yarn feeding bobbin (2) positioned at the feeding position (AS) and the winding device (4), and negative pressure is applied to each predetermined section as required. So that negative pressure flow is generated in the passage (6). And which, moreover flow direction of the negative pressure fluid, characterized in that the defined is configurable, the working unit of the textile machine to fabricate a winding wound package.   A plurality of suction air pipe pieces (12, 13, 14) are connected to the yarn guide passage (6), and the yarn guide passage (6) is connected via the suction air pipe pieces (12, 13, 14). The working part according to claim 1, wherein the working part is adapted to be loaded by negative pressure flow in different directions.   A suction air pipe piece (12, 13, 14) is connected to one suction air passage (17) of the length of the machine and is adjustable 1 having a suction opening (16) which is defined and positionable. 3. The working part according to claim 2, wherein negative pressure is selectively applied by two orifice disks.   The range of the yarn guide passage (6) for guiding the yarn during the winding process is formed as a metal die-cast part, and the suction air pipe pieces (12, 13, 14) are formed as a plastic part. The working unit according to claim 1.   2. The working part according to claim 1, wherein at least a partial range of the yarn guide passage (6) is covered by a removable cover element, and can be directly operated by being exposed by removing the cover element. .   6. The working part according to claim 5, wherein the removable cover element is made of a transparent plastic.   A storage housing (18) for the yarn splicing device (8) is incorporated in the yarn guide passage (6), and a bobbin thread coupled to the yarn supplying bobbin (2) is sucked into the storage housing (18). The first suction air pipe piece (12) for connecting to the second suction air pipe piece (13) for sucking the upper thread coupled to the traverse package (5) is connected. The working section described.   The yarn guide passage (6) is provided with a suction base (19) supported telescopically in a telescopic manner on the inlet side, and the suction base (19) is partially fed for yarn accommodation. The working part according to claim 1, wherein the working part can be lowered so as to cover the bobbin (2).   9. The working part according to claim 8, wherein the suction base (19) is provided with a closing orifice (20) that enables the inlet of the yarn guide passage (6) to be pneumatically closed if necessary.   10. The working part according to claim 9, wherein the closing orifice (20) is formed such that the closing orifice (20) additionally functions also as a residual thread.   The yarn guide passage (6) has a suction head housing (21) on the outlet side, and the suction supported by the suction head housing (21) so as to be able to turn within a limited range. The working part according to claim 1, wherein the head (22), a control flap (23) which can be positioned at various positions, and a third suction air pipe piece (14) are connected.   The suction head (22) is adjustable between a first position (I) and a second position (II), and in the first position (I), the suction head (22 ) Is positioned immediately in front of the surface of the traverse package (5) held by the winding device (4), and in the second position (II), the traverse package (5 ) And the opening of the suction head (22), a thread strand (24) is stretched between the working part.   The suction head (22) is formed of two parts, and the swivel heads (22A, 22B) are swiveled so that they can move axially along the swivel axis to form a yarn advance gap. The working unit according to claim 11, wherein the working unit is supported by a shaft.   The control flap (23) can be selectively positioned in three positions (A, B, C), the first position (A) forms the take-up position and the second position (B) sucks 12. The working part according to claim 11, wherein the working part forms a position and the third position (C) forms a closed position.   The yarn feeder (25) is installed in the range of the suction head accommodating housing (21), and the yarn feeder (25) is replaced with a third suction air pipe piece (2) of the yarn feeding bobbin (2) when changing the lot. 14) The working part according to any one of claims 11 to 14, wherein the working part is used for transferring the yarn (29) sucked into the yarn handling device of the traverse package exchange unit.   The yarn feeder (25) is formed as a feeder rod (26) and is provided with a yarn guide element (27), which in the rest position is the third suction air pipe piece (14). The working part according to claim 15, which is positioned in the range of the suction opening (28).

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