JP2018177530A - Work unit of textile machine for manufacturing cross winding package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work unit of a textile machine for manufacturing a cross winding package where the work unit includes a yarn path, the yarn path extends between a yarn feeding device, especially a yarn feeding bobbin positioned in an unwinding position, and a winding device of the work unit, and various kinds of a yarn processing device and a yarn monitoring device are installed along the yarn path.SOLUTION: A camera apparatus (7) connectable to a computer device (38) can be installed at a region (40) arranged between yarn splicing device (8) and a yarn guide drum (34). At this time, the region (40) forms a holding point for a yarn portion to be analyzed a yarn extending along a yarn path.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a working unit of a textile machine for producing a twill package, which comprises a yarn running passage, which comprises a yarn feeding device, in particular a yarn feeding bobbin positioned at a delivery point, and a working unit Extending between the winding device, there are provided a plurality of receiving housings and / or a plurality of receiving parts for installing different yarn handling devices and yarn monitoring devices along the yarn runways, It relates to the work unit.

  In the textile industry, a wide variety of configurations are known which are described in some detail in the patent literature in the context of textile machines for producing tucked packages, such as automatic tucking winders or spinning machines. The automatic winding winder often differs from one another not only with respect to the supply form of the finished spinning cups to its many working units, but also with regard to the configuration of the yarn runways specific to the working units of the automatic winding winder. There is. The same applies to spinning machines which have a spinning unit for producing the yarn and then the yarn is fed to the yarn run.

  The automatic winding winders described, for example, in DE-A-102005001093 (DE 102005001093 A1) or DE-A 102014002149 A1 (DE 102014002149 A1) each have a cup and tube transport device. The machine has its own supply device, which is connected, for example, to an equivalent supply system of a textile machine, preferably a ring spinning machine, arranged upstream.

  In such a cup and tube transport system, the spinning cups or empty tubes just completed circulate, and the spinning cups just completed at this time go back and forth to the so-called delivery points arranged in the area of the working unit. Transported and rewound there.

  Further, for example, according to DE 19539762 (DE 19539762 B4), DE 19816 188 (DE 19816188 A1) or DE 102008057806 (DE 102008057806 A1). Automatic winding winders are known which each have a working unit with a so-called rotary magazine.

  Since such rotary magazines are always manually refilled by the operator during the winding operation of an automatic winding winder, a sufficient number of finished spinning cups are always stored in the rotary magazine .

  The working unit of such an automatic winding winder, which is widely known in the textile industry, usually comprises one thread runway, which is indeed largely open, by means of which the operator Although it is possible to see through well, the analysis of the yarn section requires the presence of an operator in each working unit.

  Such a working unit with an open thread run further comprises a pivotably supported pneumatically feedable suction nozzle and a pivotably supported likewise pneumatically feedable gripper tube. These suction nozzles and gripper tubes can be used to deliver the yarn end produced after the winding interruption to the yarn splicing device.

  Furthermore, in the context of an automatic winding winder, the working units each have a closed thread guiding channel, which is located between the spinning cop positioned at the delivery point and the winding device of the working unit. It is known to extend at

  Such a closed thread guiding channel comprises a plurality of receiving parts or a plurality of receiving housings, as described in detail, for example, in DE-A 10 201 0049 515. A variety of different thread monitoring and handling devices are located within the receiving housing. The yarn guiding channel is furthermore configured such that a partial underpressure can be supplied to the yarn guiding channel as desired. That is, in such a yarn guiding passage, negative pressure flow can be realized, and the flow direction of these negative pressure flows can be determined and preset, and thus after interruption of the yarn or winding to the yarn splicing device It can be used for pneumatic conveying of the yarn end produced.

  In working units with a closed yarn guiding channel, it is possible to pivot, as is necessary in a working unit with an open thread run, in order to deliver the generated yarn end to the yarn splicing device after a winding interruption. The working unit thus formed does not require an obstructive drive assembly for actuating the suction nozzle and the gripper tube, as the supported suction nozzle and the pivotably supported gripper tube are not required. . In other words, by omitting the suction nozzle and the gripper tube, the working unit operating with a closed thread guiding channel usually has a smaller construction width than the working unit in which the thread travel path is open. .

  Further advantages of such a closed thread guiding passage are: That is, in this case, by incorporating various yarn monitoring devices and yarn processing devices in the yarn guiding path completely surrounding the yarn running path, the traveling yarn can be fully encapsulated to the surroundings during the winding process. Guaranteed.

  Such encapsulation has a very positive effect, in particular with regard to the occurrence of contamination in the working unit.

  A working unit with such a closed yarn guiding channel, however, has the disadvantage that the yarn travels substantially concealed to the operator on its way from the spinning cup to the winding package. Therefore, the operator can hardly monitor, for example, whether or not both yarn ends generated after the winding interruption have been properly spliced by the yarn splicing device. That is, the operator can not know whether or not the formed yarn splicing part has a proper appearance substantially equal to the original yarn.

  In the textile machinery industry, the use of imaging devices is also known in the context of the operation of textile machines producing twill packages.

  DE 198 03 071 A1 (DE 19836071 A1) describes, for example, a method or an associated device which can recognize the remaining yarn level in a spinning cop winding.

  In this known method, the spinning cop tube to be examined is illuminated by the light of at least one light source, the light reflected from the spinning cop tube is detected by an imaging device, for example a CCD camera, and digital image data Converted to These digital image data are supplied to an evaluation computer, which is evaluated to be able to determine the presence of the remaining amount of yarn in the spinning cop winding tube.

  According to DE 102 0080 295 575 (DE 102 0080 295 575 A1), a plurality of operating units and at least one runnable along the operating units for operating and / or maintaining the individual operating units are also provided. A textile machine is known which produces a tucked package with a service assembly.

  The service assembly then comprises a camera, which is arranged to take an image of the service assembly and / or the working unit and transmit it to the control and computer unit of the textile machine. The control and computer unit processes the communicated information and uses these information for the control of the service assembly or for the operation and / or control of the pending of the work unit.

  Starting from the prior art described above, the underlying problem of the present invention is to form in the working unit of the textile machine a working unit of a textile machine producing a tucked package, in particular having a closed yarn guiding channel. It is an improvement so that the operator can check in an improved manner whether the spliced part of the yarn has the proper appearance.

  In order to solve this problem, according to the configuration of the present invention, a yarn clearer and a yarn guide drum disposed between the yarn splicing device and the yarn guide drum, more preferably, on the downstream side of the yarn splicing device along the yarn passage. In the region of the yarn runway, which is arranged between the two, a camera device connectable to the computer device can be installed, this area then holding for the yarn portion to be analyzed of the yarn running along the yarn runway Form a point. In the framework of the invention, the yarn run is formed by a yarn feeding device, ie a spinning unit which produces yarns in the spinning machine and thus supplies the yarn to the yarn run, and is positioned at the delivery point in a so-called automatic winding winder. It extends between a yarn supply device, which is formed by a yarn supplying bobbin, and a winding device of a working unit, which forms a tucked package or a winding package by winding.

  Advantageous configurations of the invention are the subject matter of the dependent claims.

  The possibility of using the camera device at the location of the holding points for the yarn sections to be monitored makes it easy and accurate for the operator to use an electronic aid for the yarn sections to be monitored or the yarn sections to be evaluated. It becomes possible to analyze. The reason is that such electronic aids, such as camera devices, can be used, for example, to magnify the recorded image, thereby observing and evaluating the yarn portion to be analyzed in an improved manner. It is because

  According to a preferred embodiment, the yarn passage is surrounded by a yarn guiding passage, wherein the yarn guiding passage comprises a plurality of receiving housings or a plurality of receiving parts and an area with a holding point There is a camera device inside. In this way, it is possible to obtain the same advantages as in open yarn runs, even in enclosed yarn runs which can only be seen with difficulty. Furthermore, the yarn being rewound can be monitored continuously. For example, the computer device can perform an analysis performed at continuous, intermittent, or determined time points of the yarn or yarn portion to be analyzed during continuous monitoring with a camera device.

  Preferably, the yarn portion to be monitored is the splicing zone of the yarn splice formed after winding interruption in the working unit. In this embodiment, in particular, it is always and surely and relatively simply in the working unit yarn splicing device, for example, after an interruption of winding which has occurred, for example, due to thread breakage or controlled yarn clearing cutting. There is an advantage that it can be checked whether the appearance of the formed yarn splicing part corresponds to the quality requirement. That is, by positioning the splicing zone of the yarn splicing section at the determined holding point, the camera apparatus arranged in this area and connected to the computer device can perform extremely accurate photographing of the formed yarn splicing section. And can be made visible, for example to the operator. The operator or computing device can then determine whether the appearance of the yarn splicing section corresponds to the imposed requirements.

  At this time, the yarn clearer has passed without problems due to the more favorable arrangement of the holding points in the area of the yarn runway of the work unit, which is arranged between the yarn clearer of the work unit and the yarn guide drum. It is also possible to recognize yarn splices which may be noticeable as defects in woven fabrics which may be somewhat suspicious and which can be manufactured later, to ensure that they are not wound up in a crimped package.

  That is to say that the embodiment according to the invention not only can prevent, for example based on the defective regulation of the yarn splicing device, yarn splicing parts which are not equal to the original yarn from being wound up in the winding package, but also the working unit It is also possible to interfere to correct for the adjustment of the parameters of the yarn splicing device, thus avoiding the occurrence of further defective yarn splices.

  Preferably, all working units of the textile machine are equipped with a working unit with a holding point with a camera device in the area described above, in particular in the area of its thread guiding channel.

  Such an arrangement has the advantage over the use of a so-called pilot work unit, in this embodiment the work results of the yarn splicing device of all work units of the automatic winding winder are constantly checked . That is, in each work unit, the formed yarn splices are monitored prior to winding into the winding package.

  In a preferred embodiment, mini video cameras, each equipped with a zoom device, are used as camera devices. In such a relatively inexpensive video camera, for example, in contrast to a film camera in which the recorded image is stored in the form of an electronic signal, to be seen without problems as an image on the monitor of a computer device installed behind Has the advantage of being able to The zoom device can then easily enlarge the possibly suspicious zones in the case of the splices, if necessary, and this facilitates the determination of such zones.

  Preferably, the camera device is connected wirelessly or cabled to a central control unit of the textile machine forming a computer device.

  According to an alternative or further preferred embodiment, the camera device wirelessly connects, e.g., temporarily, a mobile computing device, e.g. a laptop, a tablet, a smartphone, a smart watch or the like. Or it is formed in the cable connection type.

  The central control unit of the textile machine and the mobile computing device each have a monitor on which the image taken by the camera device can be displayed and the operator checks this image be able to.

  The images taken by the camera device can preferably be further analyzed intrinsically by means of a computer device. That is, with the aid of the known yarn data and the image taken by the camera device, the computer device is adjusted in the yarn splicing device whether the formed yarn splicing part corresponds to the requirements imposed on its appearance or not Check if correction of parameters is potentially important.

  The invention will now be described in detail with reference to the embodiments shown in the drawings.

A working unit of a textile machine for producing a ply-wrapped package, comprising a yarn guiding channel surrounding a yarn run, wherein in the region between the yarn clearer and the yarn guiding drum a holding point for the yarn is provided. FIG. 8 is a perspective view schematically showing a working unit in which a camera device for photographing the yarn splicing portion formed in the yarn splicing device disposed on the upstream side is provided in this region. FIG. 2 is a side view, with a relatively large scale, of a portion of a closed yarn guide channel with a camera device arranged in the area of the yarn holding point and connected to a computer device.

  FIG. 1 schematically shows a perspective view of a working unit 1 of a textile machine for producing a twill package, in the present case a so-called winding unit of a so-called self tweezer winder.

  Such an automatic winding winder, as is known, has a plurality of operating units 1 which are often formed identically, and in these operating units 1 a yarn supplying bobbin, usually in a ring spinning machine The manufactured spinning cup 2 with only relatively little thread material is rolled back into a large volume of twill package 5.

  The finished twill package 5 is then delivered to the machine-length twill package transport of the automatic twill winder, for example using a service assembly (not shown) that operates automatically, and this twill package It is transported from the transport device to a package storage station or similar location located at the machine end.

  In order to properly supply the spinning cup 2 just completed to the working unit 1, such automatic winding winders often have a feeding device (not shown) configured as a bobbin-winding transport system. ing. In such a bobbin / wind tube transport system, the spinning cup 2 just completed or the empty tube fed out circulates vertically positioned on the transport tray, and the spinning cup 2 just finished at this time is In succession, the sheet is transported to a so-called delivery point AS disposed in the area of the work unit 1 and is then rewound into the winding package 5.

  That is, as shown in FIG. 1, the finished spinning cup 2 to be rewound into the cheese package 5 is positioned at the delivery location AS located in the area of the work unit 1 and at this delivery location AS From the spinning cup 2 a yarn 29 is withdrawn, which is then controlled and conveyed in the direction of the winding device 4 of the working unit 1.

  The individual working units 1 of the automatic winding winder, as is known, are provided with a wide variety of yarn monitoring devices and yarn processing devices, which monitor the yarn 29 during the winding process. It ensures that the yarn defects checked and detected for yarn defects are cleared away.

  The working unit 1 of such an automatic winding winder is, for example, a yarn tensioner 9, preferably a yarn splicing device formed as a pneumatically actuated yarn splicing device 8, a yarn clearer 10 with an associated yarn cutting device, a yarn A tension sensor 35 and a winding device 4 are provided.

  At this time, the winding device 4 of the working unit 1 often has a package frame 11 movably supported around the pivot shaft 30 as described in the present embodiment, and a winding package drive device The winding package drive is formed, for example, as a yarn guide drum 34, which causes the winding package 5 to be frictionally rotated, and at the same time, the winding winding is carried out. It works to traverse the yarn 29 that is taken up in the package 5.

  As can be further seen from FIG. 1, between the spinning cup 2 positioned at the delivery point AS and the winding device 4, a yarn guiding passage 6 surrounding the running passage of the yarn 29 extends. Can be established if necessary to provide a negative pressure.

  The yarn guiding passage 6 is provided on the inlet side with a delivery assisting device 3 in the form of, for example, a telescopicly formed suction base. That is, the suction base is movably supported in the vertical direction by means of a drive and, if necessary, descends at least partially above the spinning cup 2, for example to accommodate the yarn end. Can.

  The yarn guiding passage 6 further has several receiving housings or receiving parts downstream of the feeding aid device 3 in the yarn running direction F, and in these receiving housings or receiving parts, the working unit 1 A wide variety of yarn monitoring and yarn handling devices are positioned.

  At a constant distance downstream of the suction base, the yarn guiding channel 6 has, for example, a receiving portion 33 in which a yarn tensioner 9 is arranged. Subsequently, a relatively large receiving housing 18 is integrated in the thread guiding channel 6, in which the thread splicing device 8 is arranged, by means of which the thread splicing device 8 In some cases, the yarn end of the upper yarn and the yarn end of the lower yarn can again be spliced approximately equally to the original yarn.

  Inside the receiving housing 18, further holding and untwisting tubes 19, 20 and a thread cutting and clamping device and a thread puller, which are not shown in detail in the drawing for the sake of clarity. There is. Using these devices, the yarn end to be spliced can first be properly prepared.

  The yarn guiding channel 6 further comprises receiving portions 31, 32 arranged downstream of the receiving housing 18 in the yarn running direction F, and in these receiving portions 31, 32, the yarn clearer 10 or the yarn tension A sensor 35 is incorporated.

  As can be seen in particular from FIG. 2, in the region 40 of the yarn guiding channel 6 situated between the yarn clearer 10 and the yarn guiding drum 34 of the winding device 4, ie somewhat upstream of the suction head housing 21. In the area 40 arranged on the side, a camera device 7 is integrated, which is connected to the computer device via the signal conductors 23, 37 and, in the embodiment of FIG. Connected to the unit 24 is a mobile or portable laptop 38 in the embodiment of FIG.

  The computer device 24, 38 now has a monitor 26, as usual, on which the image of the camera device 7, for example a mini video camera with a zoom device, can be made visible. . A so-called holding point for the yarn 29 is also located in the region 40 of the yarn guiding channel 6 monitored by the camera device 7. That is, after the winding is interrupted, the yarn 29 is stopped in the area 40, and the yarn splicing portion or splicing zone formed in the yarn splicing device 8 can be photographed by the camera device 7.

  In the embodiment of FIG. 1, the yarn guiding channel 6 further comprises a suction head 22 which is pivotally supported in a restricted range, which suction head 22 is mounted on the suction head housing 21 at the outlet side. The suction head housing 21 is connected to the suction air passage 17 of the machine length of the automatic winding winder via a suction opening 28 to which the first suction air tube piece 14 is connected. There is.

  At this time, like the second and third suction air tube pieces 12, 13 connecting the storage housing 18 of the yarn splicing device 8 to the suction air passage 17, for example, the first suction air tube piece 14 Negative pressure can be selectively supplied via the disc 15. That is, the rotatably supported throttle disk 15 has a defined and positionable suction opening 16, which, depending on the position, of the suction air tube pieces 12, 13, 14. One or more serve to pneumatically and consistently connect to the intake air passage 17.

  Instead of the throttle disk 15 shown in FIG. 1, other control devices can of course also be considered in the context of the suction air tube pieces 12, 13, 14. For example, a configuration is also possible in which each of the suction air tube pieces is connected to the suction air passage 17 via a separate valve arrangement or the like.

  For example, after winding interruption due to thread breakage or controlled thread clearing cutting, the thread ends of the upper thread and lower thread are closed in order to be delivered to the thread splicing device 8 again to form a new thread joint. It is known how precisely the working unit 1 provided with the machined yarn guiding channel 6 operates and is described in detail, for example, in DE 10 201 0049 515 (DE 10 201 0049 515 A1). .

  Thus, the delivery of the end of the thread to be spliced to the thread splicing device 8 of the working unit 1 with the closed thread guiding channel 6 will not be described in detail again.

  In FIG. 2, a portion of the closed yarn guiding channel 6 is shown partially cut away, on a relatively large scale and in a side view.

  As can be seen from the drawing, the yarn 29 conveyed through the yarn guiding passage 6 in the yarn running direction F reaches the housing 18 in the middle of the winding device 4 and within the housing 18 the air distributor 36 , A yarn splicing device 8 is arranged. In the air distribution body 36, in order to prepare the yarn ends to be spliced, holding and untwisting tubes 19, 20 are inserted as usual, and these holding and untwisting tubes 19, 20 Each exhaust pipe 25 is connected to the surrounding air 44.

  Also arranged inside the receiving housing 18 are a yarn cutting and clamping device and a yarn feeder, which are not shown in the drawing for the sake of clarity.

  The splicing prism 39 of the yarn splicing device 8 has a splicing passage 41 capable of supplying an air force via a compressed air line 43. In the splicing passage 41, splicing of the upper yarn and the lower yarn is carried out. The yarn end to be located is positioned during the splicing process. Splicing prisms 39 further comprise on each end side of the splicing channel 41 thread-guiding metal sheets 42 which are suitable for the thread ends to be spliced into the splicing channel 41. Facilitates easy insertion.

  A housing portion 32 is connected to the housing 18 of the yarn guiding passage 6, and the yarn clearer 10 is installed in the housing portion 32. Between this yarn clearer 10 and the yarn guide drum 34 of the winding device 4 there is furthermore positioned, as shown in FIG. 2, an area 40 forming a so-called holding point for the yarn 29. . That is, after the winding is interrupted, the yarn 29 is stopped as soon as the splicing zone of the yarn splicing portion formed in the yarn splicing device 8 reaches the region 40.

  The area 40 of the yarn guiding channel 6 is then monitored by the camera device 7, which is integrated in the front wall 27 of the closed yarn guiding channel 6 and, for example, via the signal line 37. The device is connected to a laptop 38 or the like in this embodiment. At this time, the laptop 38 has a monitor 26 as usual, on which the image of the camera device 7, for example a mini video camera with a zoom device, can be seen. That is, by means of the camera device 7 connected to the computer device 38, a very accurate picture taking of the splicing zone of the yarn splicing part is performed and can be seen, for example, by the operator. The operator or computer device 38 can then determine whether the appearance of the yarn splicing section corresponds to the imposed requirements.

  Due to the holding point of the yarn 29 in the area 40 of the closed yarn guiding channel 6 arranged between the yarn clearer 10 of the working unit 1 and the yarn guiding drum 34, the yarn somewhat suspicious as regards its appearance as a whole It can be reliably ensured that the spliced part is not wound into the winding package 5.

  The invention is of course not limited to the embodiments described above, but may have other embodiments or variants without departing from the general inventive concept.

Claims (8)

A working unit (1) of a textile machine for producing wire wound packages, comprising a yarn run, said yarn run being a yarn feeding device, in particular a yarn supplying bobbin (2) positioned at a delivery point (AS) And a take-up device (4) of the work unit (1), and a plurality of receiving housings and / or for installing various yarn processing devices and yarn monitoring devices along the yarn running path. Or in the working unit (1) provided with a plurality of receiving parts,
In an area (40) arranged between the yarn splicing device (8) and the yarn guide drum (34), a camera device (7) connectable to the computer device (24, 38) can be installed, said area (40) Working unit (1), characterized in that it forms a holding point for the yarn portion to be analyzed of the yarn extending along said yarn runway.   The yarn passage is surrounded by a yarn guiding passage (6), the yarn guiding passage (6) comprising the plurality of receiving housings or the plurality of receiving portions, and in the area (40) The work unit (1) according to claim 1, wherein the camera device (7) is included.   The work unit (1) according to claim 1 or 2, wherein the yarn portion to be monitored is a splicing zone of a yarn splice formed after interruption of winding in the work unit (1).   The camera device (7) and the region (40) forming the holding point are a yarn clearer (10) disposed downstream of the yarn splicing device (8) along the yarn passage, and the yarn guide A work unit (1) according to claim 2 or 3, arranged between the drum (34).   The work unit (1) according to any of the preceding claims, wherein the camera device (7) is a mini video camera with a zoom device.   6. A work unit (1) according to any one of the preceding claims, wherein the camera device (7) is connected to a central control unit (24) of the textile machine.   A work unit (1) according to any one of the preceding claims, wherein a mobile computing device (38), in particular a laptop, is connectable to the camera device (7).   A work unit (1) according to any one of the preceding claims, wherein the computer device (24, 38) comprises a monitor (26) on which the records of the camera device (7) can be viewed. ).