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
  • B65H54/00—Winding, coiling, or depositing filamentary material
  • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
  • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
  • B65H54/26—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores having one or more servicing units moving along a plurality of fixed winding units
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H54/00—Winding, coiling, or depositing filamentary material
  • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
  • B65H54/40—Arrangements for rotating packages
  • B65H54/54—Arrangements for supporting cores or formers at winding stations; Securing cores or formers to driving members
  • B65H54/553—Both-ends supporting arrangements
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
  • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
  • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
  • B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
• • 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
  • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
  • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
  • B65H67/0411—Arrangements for removing completed take-up packages or for loading an empty core for removing completed take-up 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

Definitions

• the invention relates to a textile machine producing cross-wound bobbins according to the preamble of claim 1.
• DE 39 02 182 A1 describes, for example, a so-called cross winder with a large number of winding units, each of which has a separate winding unit computer which is connected to a central control unit of the textile machine.
• a service unit which supplies the winding units is also connected to this central control unit.
• the service unit can control the winding drive of each winding unit via the central control unit and the winding unit computer in such a way that the bobbin / empty tube with the thread guide drum opposite the one during the changing operation normal "winding process changes circumferential speed rotates.
• a cross winder is also known, the workstations of which are connected to a service vehicle via a bus line. If there is a need for operation at one of the workplaces, the workstation in question sets an optical signal which is recognized by the service vehicle patrolling in front of the workplaces and which is confirmed at the workstation by a light signal to the workstation. The work station in question is activated by this light signal so that work commands, for example turning the drive roller backwards, work station from the service vehicle via the bus line blow off or the like can be given to the job in question.
• Service units which, if necessary, change the cross-wound bobbins finished at the winding stations of such cross winding machines against empty tubes, are also known and are described, for example, in the subsequently published DE 195 20 132 A1.
• Service units of this type, so-called cross-wound bobbins have numerous handling devices which enable them to take a cross-wound bobbin from the bobbin frame of the bobbin in question and to replace it with an empty tube. A thread end is then fixed on the empty tube or between the empty tube and a rotatable component of the bobbin frame, which originates from a spinning cop positioned in an unwinding position.
• Difficulties can also arise when setting the thread end between the end face of an empty tube and the tube holder on the bobbin frame, especially if the relatively sensitive cardboard tube used is no longer in order, i.e. if the tube is in the area of its large diameter, for example, where usually the foot reserve winding is arranged, something is indented.
• the invention has for its object to make the cross-coil / empty tube changing process carried out by automatically operating cross-coil changers, in particular when using sensitive conical tubes, more secure.
• the embodiment according to the invention has the advantage that even if, for example, the sleeve of the cross-wound bobbin is jammed on the sleeve receptacle of the bobbin frame due to a defective sleeve, no manual intervention by the operating personnel is necessary. If, for example, a conical cheese with a cardboard tube widened in the area of its large diameter has stuck to the tube holder of a coil frame, which is detected by the service unit by means of a corresponding sensor, the service unit initiates its control computer via the machine bus directly with the workstation computer of the time operated winding station is connected, the relevant workstation computer so that it defines the actuating valve for the coil brake, preferably several times briefly. The associated jerky movement of the tube holder usually releases the cheese from the bobbin frame.
• control computer of the service unit can also initiate the workstation computer of the winding unit via the machine bus when the thread end is fixed on the empty tube.
• the coil brake can ensure in this case that the tensioned between the end face of the coil sleeve and the sleeve receptacle of the coil frame held thread is clamped on both opposite contact surfaces of the end face of the sleeve.
• the release of a cross-wound bobbin from the bobbin holder of the bobbin frame, as set out in claim 2, is supported by the bobbin frame lifting device which, like the bobbin brake, can be controlled in a defined manner by the control computer of the service unit via the machine bus.
• the bobbin frame lifting device which, like the bobbin brake, can be controlled in a defined manner by the control computer of the service unit via the machine bus.
• the coil brake and / or the coil frame lifting device is actuated in a pulsed manner. Due to the pulse-like activation of the bobbin brake, there are short relative movements between the bobbin holder of the bobbin frame open at this time and the cross-wound bobbin, which leads to the fact that even fixed bobbin bobbin sleeves are safely detached from the relevant sleeve receptacles.
• FIG. 1 shows a front view of a textile machine which is generally designated by the reference number 1, in the exemplary embodiment an automatic winder.
• Such automatic winding machines usually have a large number of similar work stations, in the present case winding stations 2, between their end frames 35, 36.
• winding stations 2 On these winding units 2, as is known and therefore not explained in detail, the spinning reels 9 produced on a ring spinning machine (not shown) are rewound into large-volume cross-wound bobbins 11.
• the finished cross-wound bobbins 11 are rolled out onto a cross-wound bobbin transport device 21 by means of an automatically operating service unit, for example by means of a cross-wound bobbin changer 23, and then transported to a bobbin loading station or the like arranged on the machine end (not shown).
• Such automatic winder 1 can also have a logistics facility in the form of a bobbin and tube transport system 3.
• a logistics facility in the form of a bobbin and tube transport system 3.
• spinning heads 9 and empty tubes 34 circulate around on transport plates 8.
• Such an automatic winder 1 has a central control unit 37, which has a machine bus 40 with both the separate workstation computers 39 of the individual Spool units 2 as well as the control computer 38 of a service unit 23 serving the spool units 2 is connected.
• the service unit 23 is movably mounted with carriages 24, 25 on machine-long tracks 26, 27 which are arranged above the winding units 2.
• the service unit 23 not only ensures that the bobbin 11 finished on the bobbin is rolled out onto the bobbin transport device 21, but it also automatically changes an empty tube 28 into the bobbin frame of the bobbin 2 in question.
• the corresponding empty tube 28 is preferably taken from the service unit 23 from an empty tube magazine 22 which is provided in the winding unit.
• textile machines of this type have a bobbin and tube transport system 3. 2 of this extensive transport system 3, only the machine-long transport path 4, the reversing cop feed path 5 running behind the winding stations 2, one of the transverse transport paths 6 leading to the winding stations 2 and the return path 7 are shown.
• the delivered spinning bobbins 9 are rewound into large-volume cross-wound bobbins 11 in the unwinding positions 10, which are located in the region of the transverse transport slots 6 at the winding stations 2.
• the individual winding units 2 have, as is known and therefore only hinted at, various devices which ensure proper operation of these work stations.
• the thread running from the spinning cop 9 to the package 11 is indicated by 30, by 12 a suction nozzle, by 42 a gripper tube, by 13 a splicing device, by 14 a thread tensioning device, by 15 a thread cleaner with thread cutting device and by 16 a waxing device.
• the bobbin drive drum which drives the cross-wound bobbin 11 via frictional engagement, bears the reference number 17.
• the bobbin bobbin 11 is held in a bobbin frame 18 which is pivotally mounted about an axis 19.
• a swivel plate 20 is arranged below the bobbin frame 18, likewise rotatable to a limited extent about the pivot axis 19, via which the finished cross-wound bobbins can be transferred to the cross-wound bobbin transport device 21 running behind the bobbin positions 2.
• the winding units 2 are supplied via a service unit, a so-called cross-coil changer 23. That is, the cross-wound bobbin changer 23 ensures that cross-wound bobbins 11, which have reached a predetermined diameter, are discharged onto the cross-wound bobbin transport device 21 and that an empty tube 28 is then inserted into the bobbin frame 18 from the empty tube magazine 22.
• FIG. 2 shows some of the handling elements of the service unit 23 required in the course of the cross-wound / empty tube change process, which are: frame opener 29, frame lifter 32, coil guide device 33 and sleeve feeder 31.
• the device for applying the thread 30 to the empty tube 28 or for tensioning the thread 30 between the end face of the empty tube 28 and the tube holder 53 of the bobbin frame 18 is only indicated schematically in FIG. 4 and bears the reference number 59.
• the central control unit 37 of the textile machine 1, the work station computer 39 of the individual winding stations 2 and the control computer 38 of the service unit 23 are connected to one another via the machine bus 40.
• FIG. 3 also shows that a coil brake 50 integrated in the coil frame 18 and a coil frame lifting device 49 via supply lines 51, 52; into the valve elements 43, 44 and a supply line 48 are connected to a compressed air source 45.
• valve elements 43, 44 are connected via control lines 46, 47 to the workstation computer 39 of the respective winding unit 2. This means that both the coil brake 50 and the coil frame lifting device 49 can be controlled in a defined manner by the respective workstation computer 39.
• the coil brake 50 shown in more detail in FIG. 4 is a pneumatically actuated device which is known per se.
• the coil brake 50 is supplied with a pressure medium, for example air with a pressure of 3.5 bar, via the supply line 51.
• the pressure medium flowing into the cylinder chamber 62 acts against the sleeve-like piston 55 and pushes it against the force of a spring element 57 in the direction of the sleeve holder 53.
• a sleeve of a cross-wound bobbin 11 lying against the sleeve receptacle 53 and held between the arms of the coil frame 18 or, as shown in FIG. 4, an empty sleeve 28 form an abutment.
• a pulse-like actuation of the coil brake 50 in particular when the coil frame 18 is open, leads to a short axial movement of the sleeve holder 53. Since a relatively heavy cheese, which is fixed to the sleeve holder 53, for example, with its flared conical cardboard sleeve, this jerky movement of the sleeve receptacle can not follow or only imperfectly, there is the positive effect that the cheese 11 is released from the sleeve receptacle 53 without manual intervention.
• the service unit 23 can only take one running thread 30, the package 11 is then lowered again onto the drive drum 17 and the thread 30 is newly spliced in the splicing device 13 of the winding unit 2.
• the workstation computer 39 of the winding unit 2 in question now has the service unit 23 via the machine bus 40 notified, which immediately positioned itself at the winding station 2 concerned.
• the service unit 23 With a thread lifter (not shown), the service unit 23 initially picks up the thread 30 extending between the spinning cop 9 in the unwinding position 10 and the package 11 in order to keep it ready for the subsequent changing and rewinding process. Depending on the desired configuration of the package 11, the thread 30 is later cut again, for example after creating a top-cone winding, by the service unit 23, the service unit holding the lower thread coming from the spinning cop 9.
• the cheese 11 is transferred to the cheese transport device 21 by the handling devices described above after the required top-cone winding has been attached. That is, by means of the frame opener 29, the opening lever 60 of the bobbin frame 18 is first pressed outward, so that the cross-wound bobbin 11 reaches a swivel plate 20 arranged below the bobbin. This pivotally mounted pivot plate 20 about the pivot axis 19 is then raised by the frame lifter 32 so that the package 11, guided by the package guide device 33, rolls onto the package transport device 21.
• the proper arrival of the cheese 11 on the cheese transport device 21 is monitored, for example by an ultrasound sensor 61 arranged on the service unit 23 and connected to the control computer 38. This means that the control computer 38 of the service unit 23 is informed by a corresponding signal from the sensor 61 whether the cross-wound bobbin 11 has reached its prescribed position on the cross-wound bobbin transport device 21.
• the sensor 61 has determined that the package 11 has not reached its regular position, this often means, especially when conical sleeves made of a relatively sensitive material are wound on the package winding machine, that the package 28 with its sleeve 28 is still in the sleeve receptacle 53 of the bobbin frame 18 is clamped.
• the control computer 38 of the operating unit 23 initiates the work station computer 39 of the winding station 2 in question based on the corresponding signal from the ultrasonic sensor 61 via the machine bus 40, which then in turn controls the valve devices 43 and / or 44 so that the coil brake 50 and / or the coil frame lifting device 49 is activated will.
• the work station computer 39 preferably controls the valve devices 43, 44 in such a way that the coil brake 50 and / or the coil lifting device 49 is / are acted on in a pulsed manner.
• This pulse-like actuation of the bobbin brake 50 or the bobbin lifting device 49 generally releases the bobbin 11 from the bobbin frame and slides onto the swivel plate 20.
• the bobbin 11 can then, as has already been described above, without manual intervention being necessary, on the bobbin transport device 21 are transferred.

Landscapes

• Engineering & Computer Science (AREA)
• Quality & Reliability (AREA)
• Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
• Spinning Or Twisting Of Yarns (AREA)
• Warping, Beaming, Or Leasing (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=7814002

Family Applications (1)

Country Status (5)

Cited By (4)

Families Citing this family (17)

Family Cites Families (13)

• 1996
  • 1996-12-07 DE DE19650932A patent/DE19650932A1/de not_active Withdrawn
• 1997
  • 1997-10-31 DE DE59705882T patent/DE59705882D1/de not_active Expired - Lifetime
  • 1997-10-31 EP EP97119025A patent/EP0846640B1/fr not_active Expired - Lifetime
  • 1997-11-28 TR TR97/01453A patent/TR199701453A2/xx unknown
  • 1997-12-04 US US08/985,020 patent/US5853137A/en not_active Expired - Fee Related
  • 1997-12-05 JP JP33553697A patent/JP4181235B2/ja not_active Expired - Fee Related

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