EP0374404A1 - Dispositif d'alimentation en fil pour bobinoir automatique - Google Patents

Dispositif d'alimentation en fil pour bobinoir automatique Download PDF

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Publication number
EP0374404A1
EP0374404A1 EP89119093A EP89119093A EP0374404A1 EP 0374404 A1 EP0374404 A1 EP 0374404A1 EP 89119093 A EP89119093 A EP 89119093A EP 89119093 A EP89119093 A EP 89119093A EP 0374404 A1 EP0374404 A1 EP 0374404A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
cop
support surface
thread
cuff
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89119093A
Other languages
German (de)
English (en)
Other versions
EP0374404B1 (fr
Inventor
Hans Grecksch
Dietmar Engelhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0374404A1 publication Critical patent/EP0374404A1/fr
Application granted granted Critical
Publication of EP0374404B1 publication Critical patent/EP0374404B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/22—Guides for filamentary materials; Supports therefor adapted to prevent excessive ballooning of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/06—Supplying cores, receptacles, or packages to, or transporting from, winding or depositing stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/083—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement handling the yarn-end of the new supply package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • Copes are wound into cross-wound bobbins in the automatic winder.
  • the yarn end had to be provided at a defined point before the cop reached the cop changing device so that the detection of the yarn end and the transfer to the winding device of the automatic winder were as trouble-free and as short as possible.
  • the invention has for its object to make the operation of the automatic winder more effective and thereby enable the presentation of unprepared cops, in which the yarn end is not at a defined point.
  • the yarn delivery unit described in claim 1 With the help of the new yarn delivery unit, the bobbin change is particularly quick, the yarn end picked up by the bobbin surface is quickly and easily transferred to the lower thread take-up element of the automatic winder and the subsequent start-up of the package can use without delay. The winding speed quickly reaches the highest possible value.
  • the winding unit of an automatic winder 1 shown in FIG. 1 is divided into a winding unit 2 and a yarn delivery unit 3.
  • the yarn delivery unit 3 is designed as a transportable structural unit which can be placed under the winding unit 2 of the winding unit of the automatic winder 1 and has its own machine frame 5.
  • the pivot shaft 6 of a coil frame 7 is mounted, the sleeve receiving head 8 carries the sleeve of a cheese 9.
  • the cheese 9 lies on a thread guide drum 10. It is driven by the thread guide drum 10 by friction in the direction of arrow 11.
  • the thread guide drum 10 is provided with reversing thread grooves for guiding the yarn 12 running onto the cheese 9 as a package.
  • the bobbin frame 7 can be lifted by means of a handle 13 and the bobbin 9 can thereby be lifted off the thread guide drum 10.
  • the yarn 12 is fed to the thread guide drum 10 through a thread eyelet 16. Between thread eyelet 16 and thread guide drum 10, the yarn 12 forms a traversing triangle 12 '.
  • the yarn 12 passes through a thread tensioner 17, a cleaner 18 and a paraffinizing device 19 before it reaches the thread eyelet 16. If the thread breaks, the yarn can be sucked into a catch nozzle 20.
  • the catching nozzle 20 is connected to a suction channel 21.
  • the incoming thread is usually still present as a lower thread below the thread tensioner 17. It is picked up there for the purpose of splicing by a lower thread receiving element in the form of a suction tube 24 which can be pivoted about the pivot point 23, the suction mouth 25 of which can be pivoted along the circular arc 26 to below the thread tensioner 17 and back again into the starting position shown.
  • a lower thread receiving element in the form of a suction tube 24 which can be pivoted about the pivot point 23, the suction mouth 25 of which can be pivoted along the circular arc 26 to below the thread tensioner 17 and back again into the starting position shown.
  • the upper thread After breaking the thread, the upper thread usually runs onto the package 9. There it is sought and sucked in through the suction nozzle 27 of a suction pipe 29 which can be pivoted about the pivot point 28. When the suction pipe 29 is pivoted downward, the suction nozzle 27 with the sucked-in upper thread moves along the circular arc 30. The thread that is taken along thereby threads into the reverse thread groove of the thread guide drum 10, into the thread eye 16, into the paraffinizing device 19 and into the measuring slot of the cleaner 18 a. It is also gripped by gripping means of the splicing device 22 (not shown here) and inserted into the splicing chamber of the splicing device 22 in addition to the lower thread held by the suction opening 25 of the suction pipe 24.
  • the splicing device 22 releases the thread and at a high winding speed, which is to be aimed for, a bobbin to be unwound very quickly runs empty.
  • a bobbin to be unwound very quickly runs empty.
  • Each cop change takes a certain amount of time, and the present invention now ensures that not only the winding, but also the cop change is faster than in the current state of the art.
  • the yarn delivery unit 3 consists of an unwinding aid 31 and an automatic bobbin changing device 32 for bobbins 35, 36, 37 provided with rear windings 33, 34.
  • the bobbins are on individual bobbins 38, 39, 40.
  • Fig. 4 shows further details of the single head carrier 38. It consists of a disc-like foot part 42, a single-stage or multi-stage structure 43, 44 and a plug-on mandrel 45 for the sleeve of a cop. At least the foot part 42 has the shape of a circular disk or a circular ring.
  • the arbor 45 is located concentrically above the foot part 42. In the present exemplary embodiment, the foot part 42 should be solid and have air passage openings 46 to 49.
  • the unwinding auxiliary device 31 has a longitudinally divided sleeve 50 which surrounds the bobbin 35 to be unwound and which is provided with tangential and at the same time obliquely upward blowing nozzles 51, 52, 53.
  • the flexible nozzles 51, 52, 53 are connected to a controllable valve 57 by flexible lines 54, 55, 56, which valve is connected to a compressed air source 58 via a plug connection.
  • the compressed air source 58 is connected to the machine frame 4 of the winding unit 2.
  • the lower thread take-up element consists of the already mentioned suction mouth 25 of the suction tube 24, which, as already mentioned, is for thread take-up at the lower end of the circular arc 26 at the point 25 '.
  • FIG. 6 shows, for example, a view from above of the cuff 50. It is divided lengthways and consists of the cuff parts 50a and 50b. At its foot end, the cuff 50 is provided with widenings enclosing the individual head carrier 38 of the head 35 to be unwound. The widening of the cuff part 50a is denoted by 50a 'and the widening of the cuff part 50b by 50b'.
  • the cuff 50 is divided into two parts of equal size by dividing joints 59, 60.
  • the dividing joints 59, 60 are such that when the cuff parts 50a, 50b are placed against one another there is a pipe from a fluidic point of view, through the lateral joints of which no transverse flows of harmful size can pass.
  • the division joints 59, 60 lie at an angle of 45 degrees to the direction of movement 61 of a support surface of the cop changing device 32, which will be explained in more detail later.
  • each of the two cuff parts of the cuff 50 is provided with a cuff holder 62 and 63, respectively.
  • the cuff holder 62 is provided with a control device 64, the cuff holder 63 with a control device 65.
  • the control devices 64, 65 are connected to the machine frame 5 of the yarn delivery unit 3 by traverses 66, 67.
  • control devices 64, 65 are designed as pneumatic control pistons, the piston rods of which form the sleeve holders 62, 63.
  • Other control devices which will be discussed later, are also possible.
  • the two control devices 64 and 65 already belong to the cop changing device 32, which will be discussed in more detail below. It has a constant from a cop delivery point 68 under the sleeve 50 to a sleeve delivery point 69 moving support surface 70 for head carriers 39, 40 which are guided along this support surface and can be lined up, for example, through side walls of the machine frame 5.
  • the cop changer 32 has the two control devices 64, 65 for the two cuff holders 62, 63, which are responsive to a cop changer signal from the automatic winder 1.
  • the support surface 70 here has the shape of an endless conveyor belt, which is guided over rollers 71, 72 and runs continuously. For this purpose, the roller 71 has a drive device, not shown here.
  • Fig. 1 shows that the winding unit 2 has a central control device 73.
  • Active connections 74 lead from this central control device 73 to the control devices 64 and 65. These active connections consist, for example, of flexible, pneumatic lines which are easily detachably connected to the central control device 73 by plug connections. From the central control device 73 there is, inter alia, an active connection 75 to the cleaner 18.
  • Another active connection 76 leads from the central control device 73 to a sensor 77 which continuously monitors whether or not there is a thread below the thread tensioner 17.
  • the two control devices 64 and 65 react to a cop change signal of the automatic winder 1, which the central control device 73 determines from the signals of the cleaner 18 and the sensor 87.
  • the bobbin change signal is triggered as soon as both the cleaner 18 and the sensor 22 have reported the absence of a thread to the central control device 73, after which an attempt has been made to briefly actuate or switch on the valve 57 to find the end of the lower thread, and if so then the thread or thread absence signals are still present.
  • the front compressed air connection of the pneumatic servomotor 64 is pressurized with compressed air, whereby the sleeve holder 62 is withdrawn and with it the sleeve part 50a is removed from the sleeve part 50b.
  • the rear compressed air connection of the pneumatic servomotor 64 is pressurized with compressed air, as a result of which the sleeve 50 closes again.
  • the front compressed air connection of the other pneumatic servomotor 65 is pressurized with compressed air, so that the cuff holder 63 with the cuff part 50b is withdrawn, against the widening 50b 'of which the further individual head carriers 39 and 40 with attached heads 36 and 37 are present from the outside. Due to the retraction movement of the widening 50b ', these two single head carriers 39 and 40 are first pushed back against the direction of movement 61 of the support surface 70, but then the path into the interior of the sleeve 50 is clear, so that in a short time the single head carrier 39 takes the place that previously had the single head carrier 38.
  • the cuff 50 then closes by pressurizing the rear compressed air connection of the pneumatic servomotor 65 with compressed air.
  • the edge of the widening 50b ' pushes between the two single head carriers 39 and 40, whereby the single head carrier 40 is pushed back, which then bears against the edge of the widening 50b'.
  • a program switching mechanism contained in the central control device 73 which can work, for example, electronically or also mechanically with cam disks, now switches on the valve 57, as a result of which a helical blown air flow arises in the sleeve 50, which is directed against the point 25 ', at which the Suction port 25 of the suction pipe 24 is located.
  • the helically upward air flow detects the rear turn 33 of the cop 36 now standing in the sleeve 50 and carries it upwards out of the sleeve 50 into the suction area of the suction mouth 25.
  • valve 57 closes again. The production of the thread connection and the resumption of the winding process has already been explained above.
  • the cop delivery point 68 which can be designed, for example, as a conveyor belt.
  • the sleeve delivery point 69 can also be designed as a conveyor belt, as shown in FIG. 1.
  • head carrier 41 equipped with an empty sleeve 78, which is transported on to a head delivery point (not shown) for refitting.
  • blowing nozzles 139 to 141 can be arranged, for example, uniformly over the circumference at approximately one height.
  • the lower series of blow nozzles represented by the blow nozzle 139
  • blowing nozzle 143 The next series of blowing nozzles, represented by the blowing nozzle 143, can already be at the height of the upper cone section 148 with smaller cops. A further series of blowing nozzles can be arranged above this, which would then also lie at the level of the cone section in the case of larger cops. Since the tangential direction of the blowing nozzles has to be based on the winding direction of the cop, alternatively or additionally oppositely directed blowing nozzles 140 'according to FIG. 8 can be present. Plug connections and interchangeable plugs could be used to easily and flexibly reconnect the flexible cables if copes with the opposite winding direction were to be processed.
  • a loop of thread loosening device 149 is arranged above the sleeve 50. It consists of an obstacle which can be swiveled in via the cuff 50 and has the task, especially in the case of weak yarn tension, to loops and loops which occur before they get into the thread tensioner and possibly cause a thread break there or before they get into the cleaner 18 and there in any case cause a cleaner cut and thus an interruption of the winding.
  • the twine loop release device 149 is provided with a control device 150 which enables it to be switched on and off.
  • the unwinding device has a controllable sleeve locking device 172, which holds the sleeve base of the cop during unwinding, which is shown in particular in FIGS. 4, 5, 7 and 8.
  • a variant is shown in FIGS. 2 and 3.
  • FIG. 5 shows, for example, a partial section of the unwinding device 31 with the sleeve parts 50a and 50b shown in longitudinal section.
  • the widening 50a 'of the cuff part 50a overlaps and encompasses the individual head carrier 38.
  • the widening 50b' of the cuff part 50b encompasses and encompasses the individual head carrier 38.
  • the individual head carrier 38 lies on the two conveyor belts 112, 113 also shown in FIG. 4, both of which are moving in the same direction, namely in the direction of arrows 167 and 168, respectively, and rest on a support plate 169 which has a larger cutout 170 under the sleeve 50.
  • the single head carrier 38 carries the head 35.
  • FIG. 5 shows that the sleeve base 171 of the cop 35 is held in place by a sleeve locking device shown overall in FIG. 10 and designated 172 there. 5 essentially shows two locking arms 175, 176 of the sleeve locking device 172 that can be moved relative to one another and against the sleeve base 171 through gaps 173, 174 in the sleeve 50.
  • the two locking arms 175 and 176 each have an arm portion designed in the manner of a circular ring section 175 'and 176'.
  • the arm part 175 ' has at its end a claw-like recess 177
  • the arm part 176' has a similar claw-like recess 178.
  • Die Recesses 177, 178 form holding prisms for holding the sleeve base 171 (FIG. 5).
  • the locking arms 175, 176 are each fastened to a vertical shaft 179 or 180 located outside the sleeve 50. Characterized the designed in the manner of a circular ring arm parts 175 'and 176' in the direction of the curvature of the ring so far that the claw-like end with the sleeve locking device 172 is switched off according to FIG. 11 outside of the sleeve 50, so that after release the migration of the individual head carriers through the Locking arms of the sleeve locking device 172 can not be hindered. Further explanations of the sleeve locking device 172 follow below.
  • each cuff part 50a, 50b is connected to a cuff holder 181 or 182 and that each cuff holder 181, 182 is pivotable about an axis 184 or 185 parallel to the longitudinal axis 183 of the cuff 50.
  • the sleeve holders 181, 182 are connected to hollow shafts 190 and 191 which are pivotably mounted vertically in bearings 187 and 189, respectively.
  • the bearings 187 and 189 are connected to trusses 192 and 193, which in turn have a connection to the machine frame 5.
  • the hollow shafts 190 and 191 are with the lever 194 or 195 and 196 and linkage 197 or 198 and 199 Control devices 64 'and 65' of the sleeve parts 50a and 50b articulated.
  • the two-armed lever 195 can be pivoted about a pivot axis 200.
  • the levers 193 and 194 are firmly connected to the associated hollow shafts 190 and 191, respectively.
  • FIG. 6 indicates that by pulling the rod 199 back, the sleeve part 50b can be pivoted along the pivot paths 201, 202 shown in broken lines to the position 205 shown with broken lines. In this position of the cuff part 50b, the path would be free for a single head carrier to reach the stopped cuff part 50a in the direction of movement 61 of the support surface or the conveyor belt 70.
  • the other cuff part 50a could also first be pivoted counterclockwise by a small pivot angle about the axis 184 and then pivoted back into its starting position. After retracting a single head carrier with the cop attached, the cuff part 50b could be put out of position 205 by pushing the rod 199 back against the other cuff part 50a, after which the cuff 50 would then be ready for operation again.
  • the other cuff part 50a can be pivoted counter-clockwise about the axis 184 and brought along the pivot paths 203, 204 shown in broken lines to the position 206 shown in broken lines.
  • the cuff part 50b could also initially move around be pivoted a small angle before it is pivoted away completely after the other cuff part 50a has been pivoted back to accommodate a further individual head carrier.
  • FIGS. 4 and 5 in particular show further details of the sleeve locking device 172.
  • the shafts 179 and 180 of the sleeve locking device 172 are mounted in the hollow shafts 190 and 191, which have special slide bearings 207, 208 for this purpose, and possibly further slide bearings.
  • the locking arms 175, 176 can either be screwed to the shafts 179 or 180 by special head fittings 209, 210 according to FIG. 5, but they can also be riveted optionally to the lower ends of the shafts according to FIG. 14.
  • the shafts 179, 180 or the locking arms 175, 176 attached to them are driven from above.
  • levers 211 and 212 are clamped onto the ends of the shafts 179, 180 projecting upward from the hollow shafts 190 and 191, respectively.
  • the shaft 180 is connected via the lever 212, a linkage 214 and a further lever 213 to a servomotor 215 which controls the sleeve locking device 172.
  • a cam mechanism could serve as the servomotor. Electric or pneumatic servomotors can also be used.
  • the other shaft 179 is via an articulated gear above the sleeve 50, which consists of the lever 211, a further lever 216 clamped onto the shaft 180 and a rod 217 articulatedly connecting the two levers 211, 216, for the purpose of synchronous movement with the shaft 180 connected.
  • the servomotor 215 has an operative connection 218 to the central control device 73 shown in FIG. 1
  • the central control device 73 has precautions not explained here so that the controllable valve 57 of the blowing nozzles 51, 52, 53 is synchronized in terms of control with the servomotor 215 of the sleeve locking device 172.
  • the control devices and drive devices of the switchable parts have operative connections to the central control device 73 so that they can be coordinated in terms of control there.
  • These are, for example, the above-mentioned active connections 74 to the control devices 64, 65 of the sleeve 50, the active connections 219 and 220 to the control device 150 of the twine loop release device 149, the active connection 221 to a switchable single-head carrier lifter 222 which is shown in particular in FIG. 4 and whose function will be explained further below, as well as the already mentioned operative connection 218 to the servomotor 215 of the sleeve locking device 172.
  • the switchable single head carrier lifter 222 is arranged below the sleeve 50 and below the transport plane 223 of the support surface 70 and below the support surfaces 112, 113, respectively. It consists of a pneumatic cylinder, the piston rod 224 of which carries a tappet 225.
  • the plunger 225 is located in the longitudinal axis 183 of the sleeve 50, so that the foot part 42 of the single head support 38 is raised approximately centrally when the plunger 225 follows Actuation of the single head carrier lift 222 is lifted.
  • the entire arrangement tilts such that, for example, the cop 35 shown in FIG. 3 leans against the wall of the sleeve 50.
  • the time at which the single-head carrier lifter 222 is switched off, the time at which the control device 150 of the twine loop release device 149 is switched on and the time at which the servo motor 215 of the tube locking device 172 is switched on at the time at which the controllable valve 57 of the blow nozzles 51 is switched off , 52, 53 of the cuff 50 are set. This ensures that the single head carrier remains raised only as long as the blown air is still flowing. After it has been determined or can be expected that the thread has already reached the lower thread receiving element 25, the sleeve foot is locked so that the sleeve remains stationary in the longitudinal axis 183 of the sleeve 50 during the subsequent unwinding of the cop. The twine loop release device 149 goes into operation and the cuff 50 is no longer flowed through by a forced air flow.
  • a height-adjustable pull-off accelerator 228, which is designed as a thread catcher, can be arranged in the upper section of the sleeve 50 above the sleeve tip 226, for example the cop 227, but is not shown here.
  • the sleeve locking device 364 has a support surface 363 which laterally supports the individual head carrier 38.
  • a locking arm 366 which can be placed against the sleeve base 365 is arranged such that it presses the sleeve against a push-on pin 367 of the single head support 38 and the single head support 38 against the support surface 363.
  • the plane of movement 368 of the locking arm 366 or of the locking arms lies below the sleeve 501.
  • the cuff part 501b has a downwardly projecting extension 369, which carries a web 370 on which the shell-shaped support surface 363 is present.
  • the sleeve part 501a also has a downward projection 371 which carries a bracket 372.
  • the console 372 carries a swivel joint 373 for the locking arm 366.
  • the locking arm 366 itself has a swivel joint 374 for a shift rod 376 which is connected to a lever 377 via a swivel joint 375. With the help of the clamp 378, the lever 377 is connected to the shaft 179 ', which is mounted in the hollow shaft 190'.
  • the hollow shaft 190 ' is connected to the machine frame.
  • the support surface 363 lies against the structure 44 of the single-head support 38, at least it comes very close to the structure 44.
  • the shaft 179 'then By actuating the shaft 179 'then the locking arm 366 swings in and thereby brings about the complete locking.
  • the yarn delivery unit can be designed as a transportable unit 3 which can be placed under the winding unit 2 of the winding unit. It would be conceivable that all of the yarn delivery units of all the winding units also form a common structural unit, which could also include the feed and removal belts, thereby forming a yarn delivery and transport unit that is also transportable.
  • the device according to the invention works as follows: Along the conveyor belt 68, individual head carriers with upright cops having rear windings are brought in, which automatically try on the individual yarn delivery units to get onto the support surfaces or conveyor belts 70 or 110 to 113 provided there. However, if these conveyor belts are already occupied, the individual head carriers move on until they have found a free place on another yarn delivery unit.
  • the yarn delivery unit can accommodate a total of four individual head carriers with the heads resting thereon. Since there are only three here, one space is still free.
  • the central control device 73 As soon as a bobbin is wound empty and the thread end has first passed the sensor 77 and then the cleaner 18, the central control device 73 generates a bobbin change signal, whereupon the end of the lower thread is automatically tried one or more times in a manner described above Blow out cuff 50. If these attempts fail, the cuff part 50a is opened in order to release the single-head carrier provided with the empty sleeve, which now moves on to the head conveyor belt 69. Then the cuff part 50a is brought back into the starting position and instead the other cuff part 50b is folded down in order to let the next individual head carrier in the yarn delivery unit 3 with the cop resting thereon into the cuff 50.
  • the cuff part 50b is folded back again and placed against the cuff part 50a.
  • the sleeve locking device 172 and the twine loosening device 149 are still inoperative.
  • the suction mouth 25 is brought to the point 25 'to suck the pneumatically loosened back winding after switching on the valve 57, whereupon a splicing connection on the winding unit 2 is produced, that is, the upper thread retrieved from the package 9 is connected to the lower thread originating from the bobbin by a splice connection.
  • the blowing process takes only a short time, after which the sleeve locking device 172 and the twine loosening device 149 come into operation before the actual winding process begins.
  • the valve 57 remains closed during the unwinding of the cop. However, if a thread break occurs and both the sensor 77 and the cleaner 18 determine the absence of the thread, the valve 57 is first switched on briefly, because there is a possibility that the cop still contains a quantity of yarn that is worth processing. If the end of the yarn can be blown off pneumatically, it is detached from the surface of the bobbin and raised pneumatically, after which the work steps described above take place one after the other.
  • valve 57 can initially be switched on briefly, and if no thread end is then raised, this can also be an indication of an empty cop.
  • the central control device 73 Regardless of whether the bobbin has run empty or whether the broken thread end is simply not able to be picked up again, the central control device 73 then generates a bobbin change signal, whereupon the activities described above take place and the bobbin unit 2 is offered a new bobbin thread in the shortest possible time.
  • the sleeve locking device 172 Before any cuff member starts moving, the sleeve locking device 172 is turned off. Thereafter, it is initially outside of the cuff 50. But if cuff parts are unfolded, they move towards the locking arms of the sleeve locking device 172, the arms again passing through the gaps 173 and 174. This is harmless in every respect and is easily possible because of the common pivot axes of the sleeve 50 and sleeve locking device 172.
  • FIG. 7 shows the closed sleeve locking device 172.
  • FIG. 8 shows the already opened sleeve locking device at a time when the two locking arms 175 and 176 are still pivoting counterclockwise.
  • Fig. 6 indicates that to drive the shafts 179 and 180 instead of the lever 212 connected to the shaft 180, a lever 264 connected to the shaft 179 may be present, which is articulated to a servo motor 215 '. Otherwise, the articulated gear consisting of levers 211 and 216 and of rod 217 (FIG. 7) remains as it is.
  • Fig. 4 indicates that the plunger 225 is spherical on its top.
  • a spherically shaped or generally convex plunger facilitates the tilting of the individual head carrier and the wobbling or rolling of the cop during the blowing process when it is lifted.
  • the lower thread receiving element 24 pivots counterclockwise around the pivot point 23, as has already been explained in the description of the exemplary embodiment according to FIG. 1, the mouth 25 being moved over the middle of the cuff in the thread take-up direction 266.
  • each cuff part can either be moved in a straight line or has its own pivot axis.
  • both cuff parts can be pivoted individually, but have a common pivot axis.
EP89119093A 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique Expired - Lifetime EP0374404B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843553 1988-12-23
DE3843553A DE3843553A1 (de) 1988-12-23 1988-12-23 Garnlieferaggregat eines spulautomaten

Publications (2)

Publication Number Publication Date
EP0374404A1 true EP0374404A1 (fr) 1990-06-27
EP0374404B1 EP0374404B1 (fr) 1993-06-16

Family

ID=6370056

Family Applications (4)

Application Number Title Priority Date Filing Date
EP89119093A Expired - Lifetime EP0374404B1 (fr) 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique
EP89119095A Expired - Lifetime EP0374405B1 (fr) 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique
EP89119092A Expired - Lifetime EP0374403B1 (fr) 1988-12-23 1989-10-13 Dispositif pour saisir pneumatiquement et dévider à la défilée le bout de fil d'une canette
EP89119096A Expired - Lifetime EP0374406B1 (fr) 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP89119095A Expired - Lifetime EP0374405B1 (fr) 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique
EP89119092A Expired - Lifetime EP0374403B1 (fr) 1988-12-23 1989-10-13 Dispositif pour saisir pneumatiquement et dévider à la défilée le bout de fil d'une canette
EP89119096A Expired - Lifetime EP0374406B1 (fr) 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique

Country Status (5)

Country Link
US (4) US5044572A (fr)
EP (4) EP0374404B1 (fr)
JP (4) JPH02193874A (fr)
DE (5) DE3843553A1 (fr)
ES (3) ES2041937T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996012478A1 (fr) * 1994-10-21 1996-05-02 Merck & Co., Inc. Dispositif de liberation commandee de nifedipine
EP1950163A2 (fr) 2007-01-29 2008-07-30 SAVIO MACCHINE TESSILI S.p.A. Tête de bobinage automatique
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ITMI20080275A1 (it) 2008-02-20 2009-08-21 Savio Macchine Tessili Spa Dispositivo di adattamento di una roccatrice alla partita delle spole da lavorare
JP5471923B2 (ja) * 2010-07-15 2014-04-16 村田機械株式会社 糸巻取装置
JP5471924B2 (ja) * 2010-07-15 2014-04-16 村田機械株式会社 糸巻取装置
DE102010049435A1 (de) 2010-10-23 2012-04-26 Oerlikon Textile Gmbh & Co. Kg Arbeitsstelle einer Spulmaschine
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JP2017081654A (ja) * 2015-10-22 2017-05-18 村田機械株式会社 糸巻取装置
CN109516306B (zh) * 2018-10-22 2020-06-05 武汉纺织大学 一种细纱管表面残纱退绕装置及其控制方法
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IT202000024283A1 (it) * 2020-10-15 2022-04-15 Savio Macch Tessili Spa Dispositivo antiriccio perfezionato per macchina roccatrice e relativo metodo per eliminare i ricci sul filo in una roccatrice
CN112374272B (zh) * 2020-11-25 2022-09-06 杭州灵杰花边线带有限公司 一种半自动络丝机

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US5882682A (en) * 1991-12-27 1999-03-16 Merck & Co., Inc. Controlled release simvastatin delivery device
WO1996012478A1 (fr) * 1994-10-21 1996-05-02 Merck & Co., Inc. Dispositif de liberation commandee de nifedipine
EP1950163A2 (fr) 2007-01-29 2008-07-30 SAVIO MACCHINE TESSILI S.p.A. Tête de bobinage automatique
EP1950163A3 (fr) * 2007-01-29 2009-04-01 SAVIO MACCHINE TESSILI S.p.A. Tête de bobinage automatique
EP1961687A2 (fr) 2007-02-20 2008-08-27 SAVIO MACCHINE TESSILI S.p.A. Dispositif pour distinguer des bobines de fil sur la base de leur contenu

Also Published As

Publication number Publication date
EP0374405B1 (fr) 1992-12-23
JPH02215661A (ja) 1990-08-28
DE58902420D1 (de) 1992-11-12
EP0374404B1 (fr) 1993-06-16
ES2037933T3 (es) 1993-07-01
ES2035495T3 (es) 1993-04-16
DE58904728D1 (de) 1993-07-22
JPH02193874A (ja) 1990-07-31
DE3843553A1 (de) 1990-07-05
EP0374403A1 (fr) 1990-06-27
DE58903117D1 (de) 1993-02-04
JP2779023B2 (ja) 1998-07-23
US5035371A (en) 1991-07-30
DE58904729D1 (de) 1993-07-22
ES2041937T3 (es) 1993-12-01
EP0374405A1 (fr) 1990-06-27
EP0374406B1 (fr) 1993-06-16
US5024389A (en) 1991-06-18
JPH02215660A (ja) 1990-08-28
US5056726A (en) 1991-10-15
EP0374406A1 (fr) 1990-06-27
JPH02193875A (ja) 1990-07-31
EP0374403B1 (fr) 1992-10-07
US5044572A (en) 1991-09-03

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