EP0374406B1 - 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
EP0374406B1
EP0374406B1 EP89119096A EP89119096A EP0374406B1 EP 0374406 B1 EP0374406 B1 EP 0374406B1 EP 89119096 A EP89119096 A EP 89119096A EP 89119096 A EP89119096 A EP 89119096A EP 0374406 B1 EP0374406 B1 EP 0374406B1
Authority
EP
European Patent Office
Prior art keywords
yarn
sleeve
assembly according
thread
cop
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.)
Expired - Lifetime
Application number
EP89119096A
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German (de)
English (en)
Other versions
EP0374406A1 (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 EP0374406A1 publication Critical patent/EP0374406A1/fr
Application granted granted Critical
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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

  • the invention relates to a yarn delivery unit of an automatic winder, comprising an unwinding auxiliary device for a cop standing on a single head carrier and an automatic cop changing device for the individual head carriers which are each transportable.
  • 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, in particular to accelerate it.
  • a generic automatic winder is described for example in DE 36 09 071 A1.
  • This automatic winder has an unwinding auxiliary device for a cop standing on a single head carrier and an automatic cop changing device for the individual head carriers which are each transportable.
  • the unwinding aid device has aids for transferring the thread from the inside of the tube, that is, from a defined point, to a winding point of the automatic winder.
  • 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.
  • the thread 12 forms a traversing triangle 12 'between the thread eyelet 16 and the thread guide drum 10.
  • 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.
  • a splicing device 22 is arranged on the side of the thread or thread path between the thread tensioner 17 and the cleaner 18. This splicing device 22 operates automatically in a manner which is not explained in more detail here.
  • 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 eyelet 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 back windings 33, 34.
  • the bobbins are on single bobbins 38, 39, 40.
  • Each single bobbin carrier for example the single bobbin carrier 39, consists of a disc-like foot part 42, a single-stage or multi-stage structure 43 and a 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.
  • 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 receiving element consists of the suction pipe 24 and its suction mouth 25, which, as already mentioned, for thread take-up at the lower end of the circular arc 26 at the point 25 '.
  • FIG. 2 shows, among other things, a view from above of the sleeve 50.
  • the sleeve 50 is longitudinally divided and consists of the sleeve parts 50a and 50b.
  • 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 support surface 70 which constantly moves from a cop delivery point 68 under the sleeve 50 to a sleeve dispensing point 69 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 change device 32 has the two on a cop change signal of Automatic winder 1 responsive control devices 64, 65 for the two cuff holders 62, 63.
  • 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 77.
  • the cop 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, then by briefly actuating or switching on of the valve 57, an attempt was made to find the end of the lower thread after all, and if the thread or thread absence signals are still present thereafter. This is a sign that instead of the cop 35 there is only the sleeve in the cuff 50, on which there might be a yarn residue that initially could not run.
  • 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 single head carrier 38 which was previously prevented from moving on by the widening 50a ', is now released and reaches the sleeve dispensing point 69 along with the sleeve on the conveyor belt 70.
  • 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 pulled back, against the widening 50b 'of which the further individual head carriers 39 and 40 with attached heads 36 and 37 are in contact from the outside. Due to the retraction movement of the widening 50b ', these two single head carriers 39 and 40 are initially 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 the single head carrier 39 takes up the position in a short time previously had the single head carrier 38.
  • the cuff 50 then closes by now applying compressed air to the rear compressed air connection of the pneumatic servomotor 65.
  • the edge of the widening 50b ' is pushed between the two single head carriers 39 and 40, whereby the Single head carrier 40 is pushed back, which then lies 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 cuff 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 upward 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 51, 52 and 53 there are a total of three blowing nozzles 51, 52 and 53 on the cuff 50. However, there may also be more than three blow nozzles.
  • the blowing nozzles can, for example, be arranged uniformly over the circumference at approximately one height.
  • a lower series of the blowing nozzles can lie at the level of the piecing cone of the cop.
  • the next higher series of blowing nozzles can be at the level of the cylindrical part of the cop.
  • the next series the blow nozzles can already be at the height of the upper cone section 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.
  • blowing nozzles can alternatively or additionally be present in opposite directions. 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 twine loosening device 149 is arranged above a take-off accelerator 228 and above the sleeve 50. It 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.
  • twine loop release device 149 has two arms 153, 154 which can be moved relative to and away from one another and are provided with stops 151 and 152 at the ends.
  • the twine loop release device 149 has two arms 153, 154 which can be moved relative to and away from one another and are provided with stops 151 and 152 at the ends.
  • concave edge parts 153 ', 154' of the webs and by a notch 155 and 156 respectively arranged in the middle of the concave edge part one is in 3 switched on in the longitudinal axis 183 of the sleeve 50 yarn guiding device for the yarn 12 is formed.
  • the webs 153, 154 overlap like scissors, but at a distance from one another, so that the yarn 12 cannot be pinched between the webs 153 and 154.
  • the stop 152 of the web 154 lies against the stop 151 of the web 153, which among other things determines the precise position of the yarn guiding device 155, 156, among other things.
  • the webs 153, 154 form stop surfaces for loops, curls or the like, which may migrate upward from below with the yarn 12.
  • the notches 155, 156 form, in the switched-on state of the twine loop dissolving device 149, partial looping points for the continuous yarn 12, as a result of which an increase in yarn tension occurs in the downstream section of the yarn.
  • the control device 150 consists of a pneumatic servomotor, the piston rod 158 of which is articulated to a lever 160 via an intermediate piece 159.
  • the lever 160 is connected to a shaft 161 mounted on the machine frame.
  • the arm 153 and also a gear 163 are also connected to the same shaft.
  • Lever 160, arm 153 and gear 163 are thus pivoted about a vertical pivot axis 165 with a limited pivot angle.
  • the toothing of a further toothed wheel 164 engages in the toothing of the gear 163, which is connected to a second shaft 162 and via the shaft 162 to the other arm 154.
  • the shaft 162 is also mounted in the machine frame. Your pivot axis is designated 157.
  • This gear-like coupling of the two arms 153 and 154 ensures their oppositely directed, synchronous movement.
  • a thread cutter 324 is arranged above the cuff 50. It is connected to the twine loop release device 149 and is arranged there on one of the two arms which can be overlapped like scissors, namely the arm 154.
  • the other knife 324 is pivotally mounted about the pivot point 326. It can be actuated via a connecting rod 327 by the plunger 328 of a solenoid 329. If the cop is only to be prepared but not yet to be handled on the spot, the actuation by the central control device 73 can be initiated at the point in time at which it is determined or can be expected that the thread end is sucked into the suction mouth 25, the rear winding is accordingly eliminated. If the scissors 324 are used, the arrangement of a suction tube scissors is unnecessary. On the other hand, if the bobbin is to be unwound on the spot, the scissors 324 are only actuated when the bobbin is changed in order to sever any trailing thread that may be present.
  • blowing nozzles 330 to 335 are arranged one above the other in three levels 336, 337, 338. Their angle of attack alpha against the horizontal increases from floor to floor. 15 shows that the two blowing nozzles on one tier, for example the blowing nozzles 334, 335 on the tier 338, have different tangential directions.
  • All blowing nozzles 330 to 335 are arranged essentially vertically one above the other in only one cuff part of the longitudinally divided cuff 50, namely in the cuff part 50b.
  • the two groups of blowing nozzles with mutually opposite tangential direction components are connected via a reversing valve 339 to a common blowing air supply line 340.
  • the sleeve part 50b is provided with an elongated platform 341, which is screwed to a valve body 342.
  • the two longitudinal bores 343, 344 open into a surface 345 (FIG. 18), under which the valve body 342 has guide grooves 346, 347.
  • a slide 348 engages in the guide grooves and has a through bore 349 which opens into a screw attachment 350 to which the flexible blown air supply line 340 is connected (FIG. 15).
  • 16 and 17 show a practical possibility of supplying compressed air to the reversing valve 339.
  • the supply of compressed air takes place through the hollow shaft 191, which carries the sleeve holder 182, in the direction of the arrow 351.
  • the air flow passes through a transverse bore 357, an annular space 358 and a bore 359 to the blown air supply line 340 connected to the bore 359.
  • a plug 360 closes the rear end of the bore 359.
  • One end of the hollow shaft 191 is connected to the valve 57 (FIG . 1) connected.
  • Fig. 18 is indicated by an electromagnetic drive 361 that the slide 348 could be moved from the central control device 73.
  • the through bore 349 optionally coincides with the longitudinal bore 343 or 344.
  • the diameter of the sleeve 50 could remain unchanged up to its lower end, so that an advancing single head carrier does not come into contact with its foot part against the foot part of a sleeve, but against the foot part of the single head carrier 38. This reduces the space requirement.
  • the cop's sleeve base can also be held during unwinding.
  • the sleeve 50 is longitudinally divided into two parts 50a and 50b, the parting lines 59, 60 of which are approximately less than 45 degrees to the direction of movement 61 of the support surface of the cop changing device 32.
  • control devices and drive devices of the switchable parts have operative connections to the central control device 73.
  • These are, for example, the aforementioned active connections 74 to the control devices 64, 65 of the cuff 50 and the operative connections 219 and 220 to the control device 150 of the twine loosening device 149.
  • the blown air flows release the backward winding from the surface of the cops more safely and quickly if the cop has the possibility of staggering in the cuff 50 or rolling on the inner wall of the cuff 50, for which purpose it is excited by the blown air flows.
  • the cop rotates against the direction of rotation of the blown air flows.
  • a switchable single-head carrier lifter can be arranged below the sleeve 50 and below the transport plane of the support surface 70.
  • the point in time at which the control device 150 of the twine loop loosening device 149 is switched on is set at the point in time at which the controllable valve 57 of the blowing nozzles 51, 52, 53 of the sleeve 50 is switched off.
  • a height-adjustable take-off accelerator 228 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 according to FIG. 4.
  • the trigger accelerator 228 is shown in particular in FIG. 8, an alternative trigger accelerator 229 in FIG. 6.
  • FIG. 8 shows a view from above of the sleeve 50 shown in FIG. 4.
  • the pull-off accelerator 228 has two upright, angled in the direction of rotation 230 of the thread balloon of the thread 12 to be unwound, arranged without mutual contact around the longitudinal axis 183 of the sleeve 50 and out Longitudinal slots 231 and 232 in the sleeve 50 out on the inside of the sleeve protruding yarn guide plates 236 and 237.
  • FIG. 7 A side view of the thread guide plate 237 is shown in FIG. 7. From this figure it can also be seen that the thread guide plates are wider at the base than at their end, so that thread loops can slide off better.
  • the thread guide plate 236 is attached to a rod 241, the thread guide plate 237 to a rod 242.
  • the rods 241 and 242 are arranged parallel to the longitudinal axis 183 outside the sleeve 50.
  • the longitudinal slots 231, 232 of the cuff 50 are protected against undesired flow and against outflow of air by pockets 246 and 247, which are lined outwards and bridge the longitudinal slots 231 and 232 and also the rods 241, 242 and enclose them.
  • the pockets 246, 247 can also be closed at the top by special lids, not shown here.
  • the height of the respective rod 241 or 242 can be adjusted at the level of the bottoms 250 or 251 by means of an adjusting screw 254.
  • Fig. 4 shows yet another set screw 255 in the event that a longer pocket is available.
  • the trigger accelerator 228 is set, for example, so that it lies approximately two centimeters above the tip of the sleeve.
  • the alternative pull-off accelerator 229 has, according to FIGS. 5 and 6, three upright, curved in the direction of rotation 230 of the thread balloon, arranged without mutual contact around the longitudinal axis 183 of the sleeve 50 and through longitudinal slots 233, 234, 235 in the sleeve 50 into the interior of the Thread guiding plates 238, 239, 240 protruding into the sleeve.
  • These yarn guiding plates are connected to rods 243, 244, 245 arranged parallel to the longitudinal axis 183 of the sleeve 50.
  • the rods of this exemplary embodiment have a square cross section.
  • the yarn guide plates 238, 239, 240 on the rods 243, 244, 245 are not height-adjustable.
  • longitudinal channels 259 are machined into the rods according to FIG. 5, which have a keyhole-like cross section according to FIG. 6.
  • Bead-like feet 260, 261, 262 of the yarn guide plates 238, 239, 240 fit into the channels 259 thus profiled. The height is adjusted by manually moving the thread guide plates in the longitudinal channels of the bars.
  • both the longitudinal slots 233 to 235 and the rods 243 to 245 are bridged and enclosed by pockets 248 and 249.
  • 5 shows on the pocket 248 shown in section that the pockets can also be covered at the top by special covers 263. The lids do not even have to be removed to adjust the thread guide plates.
  • Fig. 5 shows the example of the yarn guide plate 238 that in this example, the yarn guide plates are wider at the base than at the end, so that no yarn loops can get stuck.
  • the rods 243 to 245 are firmly inserted into the bottoms 252, 253 of the pockets 248, 249 and are not longitudinally displaceable.
  • the longitudinal channels of the rods 243 to 245 themselves form the pockets or covers that are considered necessary for protection against the passage of false air, the rods themselves being integral components of the sleeve walls.
  • the thread guide plates would then themselves be mounted so as to be longitudinally displaceable in correspondingly thickened and grooved parts of the sleeve wall.
  • the one cuff part 500b of a divided cuff contains a pull-off accelerator 380 in the form of a gripping hand with guide surfaces 383, 384 guiding the yarn in the direction of the arrow 381 into the inside of the hand 382.
  • Pull-off accelerators 380 and guide surfaces 383, 384 are made by bending from a single one Sheet has been made.
  • each guide surface 383, 384 carries an attachment piece 385, 386.
  • the gripping hand 380 has the shape of a sleeve provided with a longitudinal slot 387, the cross section of which has the shape of a triangle with rounded corners.
  • the guide surfaces 383, 384 are located on an outer side of the sleeve 380 and are inclined against the longitudinal slot 387 in that they have a curvature corresponding to the curvature of the sleeve part 500b.
  • the trigger accelerator 382 which is adjustable up and down, can be pivoted away into a pocket 388 arranged to the side of the sleeve part 500b.
  • the trigger accelerator 380 is longitudinally displaceable on a vertical shaft 391 by a bracket 390 and a sliding guide 391.
  • the bracket 390 is screwed to the fastening piece 385 of the guide surface 383.
  • the shaft 391 is arranged in a further pocket 392 of the sleeve part 500b and is led out of the pocket 392 downward through a shaft seal 393.
  • the servomotor 394 which is symbolically indicated in FIG. 19, the shaft 391 can be pivoted in the direction of the arrow by approximately 30 degrees. It rotates in the shaft seals 393 and 404.
  • the trigger accelerator 380 comes out of the pocket 388 into its working position shown in FIG. 22. In doing so, he picks up a thread that forms a trigger balloon, for example, and then guides it inside.
  • the height of the trigger accelerator 380 is determined by the position of a sliding sleeve 396, which is slidably and rotatably mounted on the shaft 391 and connected to the sliding guide 391.
  • the height of the sliding sleeve 396 is determined by a sleeve 398 which is rotatably mounted on the sliding sleeve 396 and is connected to the slide 389 by a carrier 399.
  • the slide 389 protrudes downward from a slot 400 at the lower end of the pocket 392. It is locked in its respective desired height by an adjusting screw 401.
  • the slider 389 also has a curvature corresponding to the curvature of the sleeve part 500b.
  • the height of the slide 389 and with it the height of the trigger accelerator 380 can only be set manually.
  • the The altitude depends primarily on the head height, but also on the take-off speed.
  • the carrier 399 By moving the slider 389 out of the position shown in FIG. 19, the carrier 399 also moves and with it the sleeve 398 upwards.
  • the sleeve 398 takes along the sliding sleeve 396, which is connected to the sliding guide 397.
  • the sliding guide slides upward along guide grooves 402, 403 along the shaft 391, taking the trigger accelerator 380 with it.
  • the slide 389 always closes the part of the pocket 388 located directly under the trigger accelerator 380.
  • cuff part 500b can be pivoted by a cuff holder 182 '. This could be done in the same way that the cuff portion 50b of the previous embodiment is pivoted through the cuff holder 182.
  • FIG. 21 shows an alternative mounting of the slide 389 'in a sleeve part 500c, which can be pivoted by a sleeve holder 182''.
  • the slide 389 ' lies behind an aperture 405 which is connected to the body of the sleeve part 500c and has a vertical elongated hole through which the adjusting screw 401 can be inserted.
  • the slider 389 ' is provided in its lower part with a threaded bore 406 into which the adjusting screw 401 fits. Tightening the set screw 401 locks the slide 389 'against the diaphragm 405.
  • a shut-off valve 407 for the suction air which can be controlled in accordance with the position of the lower thread receiving element 24 and limits the suctioned thread length, is arranged on the suction tube-shaped lower thread receiving element 24 upstream of the suction mouth 25. 24, it is designed as a thread clamp holding the sucked thread in the closed position.
  • the shut-off valve 407 consists of a central ball section 408, which has a central through bore 409, which ends in the spherical surface of the ball section 408.
  • the shaft end 413 is provided with a lever 415.
  • the shut-off valve 407 In the position according to FIG. 23, the shut-off valve 407 is open. The suction air flow flows into the mouth 25 and can carry the thread with it. When the suction tube 24 is then pivoted upwards in order to present the thread end of the track point 2, the valve 407 moves in the direction of the arrow 416.
  • the lever 415 comes into contact with a switching pawl 417, the lever 418 of which is pivotally mounted on a bolt 419 fixed to the frame and is placed in a middle zero position by means of spiral bending springs 420, 420 'and is held back in the zero position.
  • the pawl 417 automatically switches the valve 407 into the closed position shown in FIG. 24.
  • the lever 415 comes into the closed position 415 '. Because of the playful mounting of the ball section 408, the plastic, and thus low-mass, ball section is sucked in by the suction air and thereby raised somewhat, as a result of which the sucked-in thread is clamped in at approximately the point 421 between the end of the pipe section 24 '' and the ball section 408 is held.
  • the clamping can be set so weak that the thread can be pulled back through the mouth 25 at the winding point.
  • the pawl 417 opens the valve 407 again when the suction pipe 24 is moved back into its starting position shown in FIG. 23.
  • 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 yarn delivery units of all 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 in principle 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 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 twine loop release device 149 is still inoperative.
  • the suction mouth 25 is brought to the position 25 'in order to suck in the backward winding which is then pneumatically released from the surface of the bobbin after the valve 57 has been switched on, whereupon a splicing connection is made on the winding unit 2, that is to say the upper thread retrieved from the package 9 is connected to the bobbin thread from the bobbin by a splice connection.
  • the blowing process takes only a short time. Thereafter, the sleeve locking device 172 and the twine loosening device 149 can 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 pneumatically raised, after which the work steps described above take place in succession.
  • 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 mouth 25 of the lower thread receiving element 24, which can be pivoted about the pivot point 23, is located laterally above the sleeve 50 in the receiving position shown, namely in the direction of movement 61 of the conveyor belt 70, seen from above, behind the sleeve 50, as is the case 10 and 11 also show, for example.
  • Fig. 9 indicates that the lower thread 12 pneumatically conveyed out of the sleeve 50 has the tendency to move in the direction of the mouth 25 loaded with suction air and thereby come near a wall part 265 which is in the vicinity of the mouth 25 lies.
  • 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.
  • a gripping hand 274 formed from yarn guide plates 269 and 270 and opened against the yarn entraining direction 266, which is arranged in the sleeve part 50a so as to be longitudinally displaceable, for example by clamping in a longitudinal slot 50c.
  • a backward-curved end part 269 'of the gripping hand 274 forms a balloon guide plate guiding the yarn 12 into the inside of the hand, the direction of which coincides in space with the direction of rotation 278 of the thread balloon.
  • the pull-off accelerator designated overall by 268, also has the shape of a gripping hand 275 formed from yarn guide plates 271 and 272 and opened against the yarn-carrying direction 266.
  • the gripping hand 275 also has a yarn 12 guiding the inside of the hand 277 Balloon guide plate 273, which does not form part of the gripping hand 275 itself here.
  • the direction of the balloon guide plate 273 in space coincides with the direction of rotation 278 of the thread balloon.
  • Fig. 11 shows that the yarn guide plates are not quite as wide at their ends as at their base, so that loops of yarn can slide off better.
  • FIG. 10 also shows that a twine loop release device 280 which can be pivoted about the pivot point 279 is pivoted in between the upper edge of the sleeve 50 and the lower part of the lower thread receiving element 24 which is designed as a suction tube can be, as shown with dash-dotted lines.
  • the twine loop release device 280 is provided with a yarn guide notch 281.
  • swung-in twine loosening device 280 interacts with the twine baffle 269.
  • the free movement space of the running yarn is dimensioned according to how far the yarn loop release device 280 under the yarn guide plate 269 is swung in.
  • the extent of the swiveling in has an influence on the success of the yarn loop loosening.
  • the yarn can also get into the inside of the hand 277 immediately when blowing up.
  • the angled balloon guide plate 273 is arranged here such that it initially overlaps the "fingers" 271 from the outside in the direction of rotation 278, but is then overlapped by the "thumb” 272 directed against the direction of rotation 278.
  • the overlapping also takes place here without mutual contact, so that the yarn can reach the palm 277 at the overlapping points if it is blown up in the space 282 or in the 283.
  • the yarn As soon as the yarn has somehow reached the height of the upper edge of the sleeve 50, it is drawn in in the direction of the suction mouth 25. It is forced, for example, to move out of the space 282 around the thread guide plate 271 into the inside of the hand 277, from which it can no longer escape. If the yarn is conveyed up through the space 283, this can happen by chance in the vicinity of the wall part 265. If this is not the case, the yarn then comes along the outside of the yarn guide plate 272 in the vicinity of the wall part 265.
  • the suction mouth 25 moves in the yarn-carrying direction 266 over the middle of the sleeve, whereby the yarn 12, which in turn is under tension, slips along the end part of the balloon guide plate 273 and then passes over the end thereof and continues to slide along the inside of the yarn guide plate 272 until it is located in the inside of the hand 277, from which the thread balloon 278 rotates Escape is no longer possible.
  • the gripping hand 275 can also be displaced in the longitudinal slot 50c and can thus be adjusted in height.
  • the trigger accelerators can alternatively be located at the level of the upper edge of the sleeve 50 or even somewhat above the sleeve, without this having serious disadvantages. However, it is better to arrange the trigger accelerator in the upper part of the sleeve 50, as the exemplary embodiments show.
  • each sleeve 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.
  • each arm part has its own pivot axis.
  • both arms have a common pivot axis. Their synchronous movement could take place via multi-link gears instead of gears.
  • a sleeve 350 consists of the sleeve parts 350a and 350b, which have the widenings 350a 'and 350b' at their lower ends.
  • the cuff 350 is provided with a sleeve locking device 172 '. It has the two locking arms 175a and 176a.
  • the sleeve 350 is provided with a withdrawal accelerator 284, which consists of two yarn guide plates 285, 286, which can be moved out of the flow area of the air flowing through the sleeve 350.
  • the yarn guide plates 285, 286 are curved like a cylindrical surface. The curvature corresponds approximately to the curvature of the inner wall 287 of the cuff.
  • FIG. 14 shows that the inside diameter of the sleeve 350 above the sleeve tip 288, which is indicated by dash-dotted lines, has an inner radius which is approximately increased by the material thickness of the yarn guide plates 285, 286.
  • the yarn guide plates 285 and 286 can be moved out of the rest positions shown in the vicinity of the sleeve wall 287, shown with thick, uninterrupted lines, into working positions 285 'and 286', respectively, which are shown in FIG. 13 with dash-dotted lines.
  • the working positions 285 'and 286' they form the trigger accelerator 284 in that their ends 289 and 290 mutually overlap, leaving a gap 291 and 292, respectively. Conversely, they can be moved back from the working position to the rest position.
  • Each of the two yarn guide plates 285 and 286 is connected to a pivot axis 293 and 294 arranged parallel to the longitudinal axis 183 of the sleeve 350.
  • FIG. 14 shows, using the example of the pivot axis 294, that the hollow pivot axes 294, 295 are guided by two slide bearings 295 and 296.
  • the slide bearing 295 is inserted into the bottom 298 of a pocket 299.
  • the pocket 299 is flanged laterally to the upper part of the sleeve part 350b. It surrounds the pivot axis 294 and prevents the escape of false air through a slot 302 in the side wall of the sleeve part 350b.
  • the thread guide plate 286 protrudes through the slot 302 from the pivot axis 294 into the interior of the sleeve 350.
  • a similar slot 301 is also present in the side wall of the sleeve part 350a for the other thread guide plate 285.
  • Fig. 13 shows that the other hollow pivot axis 293 is shielded from the outside by a pocket 300.
  • the pivot axes 293 and 294 have control devices 303 and 304, which can be coordinated with the movements of the sleeve locking device 172 '.
  • These control devices 303, 304 have driver levers 305, 306 fastened to the pivot axes 393, 394, which can be moved against restoring forces 307 or 308 by drivers 309 or 310, which are connected to the locking arms 175a or 176a of the sleeve locking device 172 '.
  • the arrangement of the control devices 303, 304 according to FIGS. 13 and 14 is such that the yarn guide plates 285, 286 each time the sleeve locking device 172 'is closed, the profiled ends of the locking arms 175a, 176a of which can clasp and hold the lower sleeve end, for example Form trigger accelerator 284 and when releasing the head sleeve by opening the sleeve locking device 172 to release the air and yarn passage through the sleeve 350 into the rest positions shown in solid lines in Fig. 13.
  • the driver lever 305 has a driver pin 311, the driver lever 306 a driver pin 312.
  • the shafts 179 and 180, on which the locking arms 175a and 176a are seated are counter-clockwise by one, not shown, of which Central control device 73 controlled drive device rotated.
  • the drivers 309, 310 come against the driver pins 311, 312 and take them with them, so that the two driver levers 305, 306 finally reach the switch-off positions 305 ', 306'.
  • the driver levers 305, 306 are pivoted against restoring forces 307 and 308, which can be applied, for example, by springs. These restoring forces then later restore the Trigger accelerator 284 as soon as the sleeve locking device 172 'is closed again.
  • FIG. 14 shows that the driving lever 306 is clamped onto the lower end of a rod 314 by means of a foot 313.
  • the rod 314 is supported in a slide bearing 297.
  • the slide bearing 297 is held by a cross member 315, which is screwed to the sleeve part 350b.
  • the slide bearing 296 of the pivot axis 294 is held by a cross member 316, which is also screwed to the sleeve part 350b by screws 317, 318.
  • Two drivers 319, 320 are let into the lower end of the hollow pivot axis 294.
  • the two drivers 319, 320 are guided in grooves 321, 322.
  • the hollow pivot axis 294 can be plugged onto the rod 314 from above, whereby a rotationally fixed but displaceable connection is achieved.
  • the height of the yarn guide plate 286 can be changed by replacing an insert ring 323 of low height which is open at the periphery and is slightly resiliently fitted over the rod 314, by a more or less long sleeve.
  • the trigger accelerator 284 is adapted to cops of different heights.
  • Fig. 13 shows that whenever the two yarn guide plates 285 and 286 are in their rest positions shown, the helical air flow directed from bottom to top is not disturbed by any obstacle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (34)

  1. Unité d'alimentation en fil (3) d'un bobinoir automatique (1), constituée d'un dispositif d'aide au dévidage (31) pour un cops (35) monté sur un support individuel de cops (38 à 40), et d'un dispositif automatique de changement de cops (32) pour les supports individuels de cops individuellement déplaçables, le dispositif d'aide au dévidage (31) comprenant des moyens pour aider à transférer le fil (12) à un poste de bobinage (2) du bobinoir automatique (1),
    caractérisée en ce que le dispositif d'aide au dévidage (31) comprend en outre un manchon (50) entourant le cops à dévider (35), en ce que le manchon (50) est divisé longitudinalement, en ce que ses parties de manchon (50a, 50b) peuvent être éloignées vers le côté lors du changement de cops, en ce que les moyens d'aide consistent en des buses soufflantes (51, 52, 53 ; 330 à 335) pour dégager le fil, qui sont orientées à la fois tangentiellement et en oblique vers le haut dans les parties de manchon (50a, 50b) et dont les flux d'air soufflé sont dirigés en hélice vers le haut, dans l'espace intermédiaire présent entre le cops (35) et le manchon (50), en direction d'un élément récepteur de fil (24) présent sur le bobinoir automatique (1), et en ce qu'un accélérateur de tirage réglable (228, 229, 380), conçu comme attrape-fil et prévu pour le fil (12) tiré de façon continue au-dessus du cops (35) à la suite du transfert au poste de bobinage (2), est disposé à l'extrémité supérieure du manchon (50), au-dessus de la pointe de tube (226) du cops (227).
  2. Unité d'alimentation en fil selon la revendication 1, caractérisée en ce que le dispositif de changement de cops (32 ; 32') possède une surface de soutien (70), qui se déplace en permanence en ligne droite d'un poste d'alimentation en cops (68) à un poste d'évacuation de tubes (69) en passant sous le manchon (50) et qui est prévue pour des supports individuels de cops (38 à 40), qui peuvent être mis à la file et sont guidés le long de la surface de soutien (70).
  3. Unité d'alimentation en fil selon la revendication 1 ou 2, caractérisée en ce que l'accélérateur de tirage réglable (267, 268, 380) a la forme d'une main preneuse (274, 275, 380), et en ce que la main preneuse possède une surface de guidage (269, 273, 383, 384) dirigeant le fil (12) à l'intérieur (276, 277, 382) de la main.
  4. Unité d'alimentation en fil selon la revendication 3, caractérisée en ce que la main preneuse (380) a la forme d'une douille dotée d'une fente longitudinale (387) et présentant une section en forme de triangle à sommets arrondis, et en ce que les surfaces de guidage (383, 384) se trouvent sur un côté extérieur de la douille (380) et sont inclinées vers la fente longitudinale (387).
  5. Unité d'alimentation en fil selon la revendication 3, caractérisée en ce que la main preneuse (274, 275) est constituée de tôles guide-fil, en ce qu'elle est ouverte à l'encontre de la direction d'entraînement du fil (266), et en ce que la surface de guidage consiste en une tôle de guidage (269' ; 273) dont la direction coïncide, dans l'espace, avec la direction de rotation (278) du ballon de fil.
  6. Unité d'alimentation en fil selon la revendication 5, caractérisée en ce que la tôle de guidage est réalisée sous la forme d'une propre partie terminale (269'), coudée vers l'arrière, de la main preneuse (274).
  7. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'accélérateur de tirage (284) peut être déplacé hors de la zone d'écoulement de l'air qui s'écoule à travers le manchon (350).
  8. Unité d'alimentation en fil selon la revendication 7, caractérisée en ce que l'accélérateur de tirage (284) présente deux tôles guide-fil courbes (285, 286), dont la courbure correspond approximativement à la courbure de la paroi intérieure (287) du manchon et qui peuvent être déplacées de positions de repos, situées à proximité de la paroi (287) du manchon, à des positions de travail (285', 286') dans lesquelles elles forment l'accélérateur de tirage (284) par le fait qu'elles se recouvrent réciproquement par leurs extrémités (289, 290) en laissant libre un espace intermédiaire (291, 292), et inversement.
  9. Unité d'alimentation en fil selon la revendication 7 ou 8, caractérisée en ce que l'accélérateur de tirage (380) et/ou les tôles guide-fil d'accélérateur de tirage (285, 286 ; 383, 384) sont reliés à des axes de pivotement (293, 294 ; 391), qui sont disposés parallèlement à l'axe longitudinal (183) du manchon (350) et qui présentent des dispositifs de commande (303, 304 ; 394) pouvant être coordonnés avec les mouvements d'un dispositif de blocage de tube (172').
  10. Unité d'alimentation en fil selon la revendication 9, caractérisée en ce que les axes de pivotement (293, 294) de l'accélérateur de tirage (284) possèdent des leviers entraîneurs (305, 306) qui peuvent être déplacés, à l'encontre de forces de rappel (307, 308), par des entraîneurs (309, 310) reliés aux bras de blocage (175a, 176a) du dispositif de blocage de tube (172'), de sorte que les tôles guide-fil (285, 286) forment chaque fois l'accélérateur de tirage (284) lors de la fermeture du dispositif de blocage de tube (172') et, lors de l'ouverture du dispositif de blocage de tube (172'), peuvent être pivotées à des positions de repos afin de permettre le libre passage de l'air et du fil à travers le manchon (350).
  11. Unité d'alimentation en fil selon la revendication 1, caractérisée en ce que l'accélérateur de tirage (228 ; 229) présente deux ou plus de deux tôles guide-fil (236, 237 ; 238, 239, 240), posées debout, coudées ou courbées dans la direction de rotation (230) du ballon de fil, disposées tout autour de l'axe longitudinal (183) du manchon (50) sans contact mutuel de leurs extrémités, et qui pénètrent à l'intérieur du manchon (50) par des fentes longitudinales (231, 232 ; 233, 234, 235).
  12. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 11, caractérisée en ce que l'accélérateur de tirage (380) ou les tôles guide-fil d'accélérateur de tirage (236, 237 ; 238, 239, 240) sont reliés à des tiges (241, 242 ; 243, 244, 245 ; 391) disposées parallèlement à l'axe longitudinal (183) à l'extérieur du manchon (50), et en ce que, selon le cas, soit les tiges (241, 242) sont réglables en hauteur, soit l'accélérateur de tirage (380) ou les tôles guide-fil (238, 239, 240) sont réglables en hauteur sur les tiges (243, 244, 245 ; 391).
  13. Unité d'alimentation en fil selon la revendication 11 ou 12, caractérisée en ce que les fentes longitudinales (231, 232) du manchon (50) sont protégées d'un passage de flux indésirable par des poches recouvertes vers l'extérieur (246, 247 ; 248, 249), qui entourent ou recouvrent les fentes longitudinales (231, 232 ; 233, 234, 235) et, le cas échéant, les tiges (241, 242 ; 243, 244, 245).
  14. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 13, caractérisée en ce que l'accélérateur de tirage abaissable et relevable (380) peut être éloigné par pivotement dans une poche (388) disposée à côté du manchon (500b).
  15. Unité d'alimentation en fil selon la revendication 14, caractérisée en ce qu'au moins la partie de la poche (388) qui se trouve en dessous de l'accélérateur de tirage (380) peut être fermée par un tiroir réglable (389, 389'), adapté à la courbure du manchon (500b, 500c).
  16. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 15, caractérisée en ce que l'élément récepteur de fil (24) présente une embouchure d'aspiration (25) qui se trouve latéralement au-dessus du manchon (50) dans la position de réception et qui, à la suite de la réception du fil (12), peut être déplacée dans une direction d'entraînement du fil (266) s'étendant au-delà du milieu du manchon.
  17. Unité d'alimentation en fil selon la revendication 16, caractérisée en ce qu'une valve d'isolement (407) pour l'air d'aspiration, qui limite la longueur de fil aspirée et peut être commandée en fonction de la position de l'élément récepteur de fil (24), est disposée en amont de l'embouchure d'aspiration (25).
  18. Unité d'alimentation en fil selon la revendication 17, caractérisée en ce que la valve d'isolement (407) est conçue comme pince-fil qui, dans la position de fermeture, immobilise le fil aspiré.
  19. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 18, caractérisée en ce que le dispositif d'aide au dévidage (31) possède au moins un dispositif de commande (64, 65), réagissant à un signal de changement de cops du bobinoir automatique (1) et prévu pour deux porte-manchon (62, 63 ; 181, 182), dont l'un (62 ; 181) est relié à une partie de manchon (50a) située en aval dans la direction de déplacement (61) de la surface de soutien (70), afin, lors de l'actionnement du dispositif de commande (64), de libérer le tube dévidé (78) et son support individuel de cops (41) pour qu'ils puissent être évacués le long de la surface de soutien (70), et dont l'autre (63 ; 182) est relié à une partie de manchon (50b) située en amont dans la direction de déplacement (61) de la surface de soutien (70), afin, lors de l'actionnement du dispositif de commande (65), de libérer le support individuel de cops suivant (39) reposant sur la surface de soutien (70), avec le cops (36) monté sur lui, pour qu'ils puissent être transportés, le long de la surface de soutien (70), jusqu'à l'intérieur du manchon (50).
  20. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 19, caractérisée en ce qu'un dispositif déboucleur (149) est disposé au-dessus du manchon (50).
  21. Unité d'alimentation en fil selon la revendication 20, caractérisée en ce que le dispositif déboucleur (149) possède un dispositif de commande (150) permettant son enclenchement et son désenclenchement.
  22. Unité d'alimentation en fil selon la revendication 20 ou 21, caractérisée en ce que le dispositif déboucleur (149) possède deux bras (153, 154) pouvant être rapprochés et éloignés l'un de l'autre, qui sont pourvus de butées (151, 152) à leurs extrémités et qui présentent un guide-fil (155, 156) situé, à l'état enclenché, sur l'axe longitudinal (183) du manchon (50).
  23. Unité d'alimentation en fil selon la revendication 22, caractérisée en ce que les bras (153, 154) sont réalisés sous la forme de barres qui peuvent se recouvrir à distance l'une de l'autre à la manière de cisailles, et en ce que le guide-fil consiste en une partie de bord concave (153', 154') de la barre (153, 154), avec une encoche (155, 156) disposée au milieu de la partie de bord concave.
  24. Unité d'alimentation en fil selon la revendication 23, caractérisée en ce que les encoches (155, 156) se recouvrent mutuellement à l'état enclenché du dispositif déboucleur (149) et constituent alors des points d'enroulement partiel pour le fil (12) qui passe par elles.
  25. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 24, caractérisée en ce que le dispositif de commande (150) pour le dispositif déboucleur (149) consiste en un servomoteur agissant sur un levier (160) qui est relié à un (153) des bras, monté à pivotement autour d'un axe de pivotement (165), et en ce que le levier (160) est relié à une roue dentée (163) ou un segment denté engrenant avec la denture d'une seconde roue dentée (164) ou segment denté relié(e) à l'autre bras (154), qui est monté à pivotement autour d'un second axe de pivotement (157) et peut ainsi être déplacé à contresens de manière synchrone.
  26. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 25, caractérisée en ce que le dispositif de commande (150) peut être commandé en fonction de la tension du fil ou de la vitesse de bobinage, et en ce que le dispositif déboucleur (149) peut être désenclenché en fonction de paramètres de fil respectivement en vigueur, à l'atteinte de vitesses de bobinage ou de tensions du fil sélectionnables d'après ces paramètres.
  27. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 26, caractérisée en ce que les buses soufflantes (330 à 335) sont disposées en au moins trois étages superposés, et en ce que leur angle d'inclinaison (alpha) par rapport à l'horizontale augmente d'un étage à l'autre.
  28. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 27, caractérisée en ce que les buses soufflantes (330 à 335) sont toutes disposées dans une seule partie de manchon (50b) du manchon longitudinalement divisé (50).
  29. Unité d'alimentation en fil selon la revendication 25, caractérisée en ce que les buses soufflantes (330 à 335) sont sensiblement verticalement superposées.
  30. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 29, caractérisée en ce que les buses soufflantes (330 à 335) sont disposées en deux groupes (330, 332, 334 ; 331, 333, 335) possédant des composantes de direction tangentielle mutuellement opposées, et en ce que les deux groupes sont raccordés à une conduite commune d'alimentation en air soufflé (340) par l'intermédiaire d'une valve d'inversion (339).
  31. Unité d'alimentation en fil selon la revendication 30, caractérisée en ce que la valve d'inversion (339) est disposée sur la partie de manchon (50b) qui présente les buses soufflantes (330 à 335).
  32. Unité d'alimentation en fil selon l'une quelconque des revendications 1 à 31, caractérisée en ce qu'un coupe-fil (324), qui peut être actionné lors du changement de cops, est disposé au-dessus du manchon (50).
  33. Unité d'alimentation en fil selon la revendication 32, caractérisée en ce que le coupe-fil asservissable (324) est relié au dispositif déboucleur (149).
  34. Unité d'alimentation en fil selon la revendication 33, caractérisée en ce que le coupe-fil asservissable (324) est disposé sur l'une des deux barres (153, 154) du dispositif déboucleur (149) qui peuvent se recouvrir à la manière de cisailles.
EP89119096A 1988-12-23 1989-10-13 Dispositif d'alimentation en fil pour bobinoir automatique Expired - Lifetime EP0374406B1 (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
EP0374406A1 EP0374406A1 (fr) 1990-06-27
EP0374406B1 true EP0374406B1 (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 Before (3)

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

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)

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DE4441454A1 (de) * 1994-11-22 1996-05-23 Schlafhorst & Co W Kreuzspulen herstellende Textilmaschine
EP0805118B1 (fr) * 1996-05-02 2001-11-28 W. SCHLAFHORST AG & CO. Tête de bobinage pour la production des bobines croisées pour machines textiles
ITMI20070134A1 (it) * 2007-01-29 2008-07-30 Savio Macchine Tessili Spa Stazione di roccatura automatica
ITMI20070328A1 (it) 2007-02-20 2008-08-21 Savio Macchine Tessili Spa Dispositivo per discriminare le spole in base al loro contenuto di filo
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
DE102014016474A1 (de) * 2014-11-06 2016-05-12 Saurer Germany Gmbh & Co. Kg Arbeitsstelle einer Spulmaschine mit einem Drehventil
DE102015007820A1 (de) 2015-06-18 2016-12-22 Saurer Germany Gmbh & Co. Kg Vorrichtung zum Zuführen eines Fadens auf einer Spulstelle einer automatischen Spulmaschine
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
DE102018131882A1 (de) * 2018-12-12 2020-06-18 Saurer Spinning Solutions Gmbh & Co. Kg Spinnkopsaufnahmeeinheit und Spulmaschine
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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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
US5024389A (en) 1991-06-18
JPH02215660A (ja) 1990-08-28
US5056726A (en) 1991-10-15
EP0374404A1 (fr) 1990-06-27
EP0374406A1 (fr) 1990-06-27
JPH02193875A (ja) 1990-07-31
EP0374403B1 (fr) 1992-10-07
US5044572A (en) 1991-09-03

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