EP1457446B1 - Vorrichtung zur Fadenspannungsregelung und zur Beseitigung von Fadenlockerungen in einer Garnwickeleinrichtung - Google Patents

Vorrichtung zur Fadenspannungsregelung und zur Beseitigung von Fadenlockerungen in einer Garnwickeleinrichtung Download PDF

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Publication number
EP1457446B1
EP1457446B1 EP20040003082 EP04003082A EP1457446B1 EP 1457446 B1 EP1457446 B1 EP 1457446B1 EP 20040003082 EP20040003082 EP 20040003082 EP 04003082 A EP04003082 A EP 04003082A EP 1457446 B1 EP1457446 B1 EP 1457446B1
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EP
European Patent Office
Prior art keywords
yarn
slack eliminating
winding
roller
spinning
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
EP20040003082
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English (en)
French (fr)
Other versions
EP1457446B9 (de
EP1457446A2 (de
EP1457446A3 (de
Inventor
Osamu Hirao
Masazumi Shigeyama
Hiroyuki Yagi
Harutoshi Sawada
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
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
Priority claimed from JP2003067526A external-priority patent/JP3700706B2/ja
Priority claimed from JP2003070122A external-priority patent/JP2004277921A/ja
Priority claimed from JP2003072677A external-priority patent/JP3888319B2/ja
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP1457446A2 publication Critical patent/EP1457446A2/de
Publication of EP1457446A3 publication Critical patent/EP1457446A3/de
Application granted granted Critical
Publication of EP1457446B1 publication Critical patent/EP1457446B1/de
Publication of EP1457446B9 publication Critical patent/EP1457446B9/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • 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
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/18—Driven rotary elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • 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 present invention relates to a yarn winder comprising a yarn slack eliminating device that eliminates the slack of a yarn that may occur between a supply side and a winding device during a yarn splicing operation.
  • a yarn splicing device splices the leading end of a yarn successively fed by a spinning device, to a yarn end on a package.
  • the yarn splicing operation is performed while winding of the yarn remains stopped. Accordingly, to eliminate the slack of the yarn successively fed by the spinning device, means has hitherto been employed which sucks the excessive part of the yarn using a suction tube called a slack tube as described in the Unexamined Japanese Patent Application Publication (Tokkai-Hei) No. 2001-159039 .
  • the Examined Japanese Patent Application Publication (Tokkou-Hei) No. 4-13272 corresponding to EP 0 108 195 A1 describes a roller type yarn storage device (yarn slack eliminating device) which eliminates yarn slack by temporarily winding a yarn fed by a spinning device around a storage roller (slack eliminating roller).
  • the yarn storage device is loaded, together with a yarn binding device (yarn splicing device), on a maintenance device (work carriage) that can run along a spinning machine.
  • the yarn storage device is provided with a return element composed of a yarn return ring, in addition to the storage roller.
  • the return element has a function of guiding the introduction of a yarn when it is wound around the storage roller during yarn splicing, and guiding the unwinding of the yarn when the yarn is unwound from the storage roller after the winding has been restarted.
  • a yarn winder according to Claim 1 of the present invention is employed in order to solve the above conventional problems. That is, according to Claim 1, there is provided a yarn winder comprising a yarn slack eliminating device, the yarn winder being characterized in that the yarn slack eliminating device has a slack eliminating roller, guide members arranged on an upstream and downstream sides, respectively, of the slack eliminating roller, and a yarn threading member, and the yarn threading member is arranged at a position where the yarn threading member can be engage with a yarn on the shortest yarn path between the upstream side guide and the downstream side guide, and the yarn slack eliminating device comprises yarn moving means for moving the yarn from the shortest yarn path to a yarn path on which the yarn does not engage with the yarn threading member.
  • the yarn winder according to the present invention configured as described above can perform a yarn splicing operation as described below.
  • the yarn moving means holds the yarn on the yarn path on which it engages with the yarn threading member.
  • the yarn moving means moves the yarn to the shortest yarn path between the upstream side guide and the downstream side guide. The yarn is thus engaged with the yarn threading member placed at the position where the yarn threading member can engage with the shortest yarn path. The yarn is then wound around the slack eliminating roller.
  • the yarn winder according to the present invention moves the yarn lying at the position where it does not engage with the yarn threading member positioned away from the yarn path corresponding to the shortest distance, to the position where it matches the yarn path corresponding to the shortest distance, to engages the yarn with the yarn guiding device. Accordingly, the direction of an operation of engaging the yarn with the yarn threading member does not involve an increase in yarn tension caused by the marked bending of the yarn during yarn guiding.
  • the arrangement set forth in Claim 2 can be employed. That is, driving means for the yarn moving means or control means for the driving means is provided on a work carriage on which a yarn splicing device is mounted and which can move among the winding units. This arrangement makes it possible to easily control the yarn splicing operation performed by a work carriage and the operation of the yarn slack eliminating using approximate timings.
  • the yarn winder according to the present invention may be set so that a yarn detect detector and a cutter are provided upstream of the slack eliminating roller, the cutter cutting a yarn on the basis of a detection result from the yarn detect detector, and the movable upstream side guide provided upstream of the slack eliminating roller is moved to enable the yarn to be moved between the position where the yarn can engage with the yarn threading member and the position where the yarn does not engage with the yarn threading member, so that the yarn is placed away from the yarn defect detector when the yarn path is not engaged with the yarn threading member.
  • the yarn detect detector and the cutter cutting a yarn on the basis of a detection result from the yarn detect detector are provided upstream of the slack eliminating roller as described previously, then first, after the cutting of the yarn using the cutter, a part of the yarn which remains wound around the slack eliminating roller can be easily processed. Second, during a defect portion removing and yarn splicing operations following the detection of a defect by the yarn defect detector, it is advantageously possible to prevent errors such as a large amount of discarded yarn or winding of a yarn defect portion around a winding package.
  • the yarn winder comprises a winding device that winds a supplied yarn into a package, a splicing device that splices a supply side yarn end to a winding side yarn end, and a winding side yarn end catching member that pulls out and catches the winding side yarn end from the package. Furthermore, the yarn winder is provided with a detecting member that detects whether or not the yarn end wound around a package has been pulled out by the winding side yarn end catching member, control means for controlling a supply of a bundle of fibers on the basis of the detection result from the detecting member, and control means for controlling winding of the yarn around the slack eliminating roller on the basis of the detection result from the detecting member.
  • the winding device comprises a traverse device that traverses a supplied yarn, and the detecting member detects traverse of the winding side yarn caught by the winding side yarn end catching member and unwound from a package.
  • the yarn winder according to Claim 6 is characterized in that the detecting member is of a non-contact type that does not contact with a yarn.
  • upstream and downstream are based on a direction in which a yarn runs during spinning.
  • the upstream side corresponds to a spinning device
  • the downstream side corresponds to a winding device.
  • FIG 1 is a front view showing an example of a spinning machine 1 to which the present invention is applied.
  • Figure 2 is an enlarged view schematically showing the internal structure of a part of the spinning machine 1.
  • the spinning machine 1 is composed of, for example, a pneumatic spinning machine.
  • Main constituent members of the spinning machine 1 include a control section 1A, a spinning section 1B in which a large number of spinning units 2 are arranged in line, a blower section 1C, and a work carriage 3 comprising a yarn splicing device and adapted to run freely along a rail R between the spinning units 2.
  • the control section 1A controls the operations of driving motors 31, 32, 33 for driving shafts 41, 42, 43 that exert a driving force on all the spinning units 2 constituting the spinning section 1B, the operations of motors 34, 35 provided for each spinning unit 2, the operation of a winding device 12, and the like.
  • a calculating section (b) outputs spinning speed information to the motors 31 ⁇ 34 via an inverter (c) or a driver substrate 30.
  • rotation speed information on a slack eliminating roller (described later) is outputted to the motor 35 of the yarn slack eliminating device 10 via a driver substrate 40.
  • the spinning section 1B is composed of the large number of spinning units 2 arranged in line. Each of the spinning units 2 is configured to be independently controlled.
  • the spinning machine 1 according to the present invention is characterized in that in addition to a spinning device 5 and a winding device 12, a yarn slack eliminating device 10 is provided for each spinning unit 2. The structure of the spinning unit 2 will be described later in detail.
  • the blower section 1C houses compressed air supplying means for supplying compressed air to a desired portion of the spinning unit through an air duct and negative pressure supplying means for supplying a negative pressure (suction pressure) to a desired position of the spinning unit 2 through an air duct.
  • the blower section 1C supplies compressed air to the spinning device 5 of the spinning unit 2 to allow the negative pressure to act on a sucking device.
  • the work carriage 3 On the basis of a yarn splicing request signal, the work carriage 3 is adapted to run on the rail R to move to the position of a spinning unit 2 requiring yarn splicing and then to stop there.
  • the work carriage 3 comprises a yarn splicing device 17 such as a knotter or a splicer, a suction pipe 18 that sucks an end of a yarn formed by the spinning device 5 and guides the end to the yarn splicing device 17, a suction mouth 19 that sucks a yarn end of a package 16 supported by the winding device 12 and guides the yarn end to the yarn splicing device 17, and a tension arm 20 that contacts with and tenses a yarn Y as required (see Figure 12 ).
  • a yarn splicing device 17 such as a knotter or a splicer
  • a suction pipe 18 that sucks an end of a yarn formed by the spinning device 5 and guides the end to the yarn splicing device 17, a suction
  • the work carriage 3 which runs along the direction in which the spinning units 2 are arranged in parallel, is thus provided with the yarn splicing device 17, the suction pipe 18, and the suction mouth 19. Accordingly, a yarn splicing operation can be performed on all the spinning units 2 using only the above set of components. This simplifies the structure of the spinning machine 1.
  • the suction pipe 18 comprises a suction port 18a at its leading end and can be rotatively moved around a pivotal supporting section 18b.
  • the suction pipe 18 is rotatively moved upward as shown by the alternate long and two short dashes line in Figure 6 to position the suction port 18a near a yarn discharge port in the spinning device 5.
  • the suction pipe 18 sucks the yarn end of the spun yarn Y and is then rotatively moved downward to its initial position shown by the solid line in the same figure while sucking the yarn Y.
  • the suction pipe 18 thus guides a spinning side yarn Y1 to the yarn splicing device 17.
  • the suction mouth 19 functions as a member that sucks a winding side yarn end.
  • the suction mouth 19 comprises a suction port 19a at its leading end and can be rotatively moved around a pivotal supporting section 19b.
  • the suction pipe 18 is rotatively moved downward as shown by the alternate long and two short dashes line in Figure 6 .
  • the suction pipe 18 then sucks the yarn end from the package 16 having stopped rotating, through the suction port 19a at its leading end to pull out the yarn Y.
  • the suction pipe 18 is rotatively moved upward to its initial position shown by the solid line in the same figure while sucking the yarn.
  • a yarn Y2 on the package 16 side is thus guided to the yarn splicing device 17.
  • the spinning unit 2 is composed of a draft device 4, the spinning device 5, a yarn feeding device 6, a yarn sucking device 7, a cutter 8, a yarn defect detector 9, the yarn slack eliminating device 10, a waxing device 11, and the winding device 12. These components are arranged in this order from upstream side to downstream side of a yarn path E.
  • the draft device 4 is composed of four lines including, for example, a back roller 4a, a third roller 4b, a second roller 4d from which an apron 4c is extended, and a front roller 4e, the rollers being arranged in this order from the upstream side.
  • the spinning device 5 is of, for example, a pneumatic type that utilizes whirling air currents to generate the spun yarn Y (hereinafter simply referred to as the "yarn Y") from the bundle of fibers S.
  • the yarn feeding device 6 is composed of a nip roller 6a and a delivery roller 6b to feed the yarn Y downward while sandwiching it between the rollers 6a, 6b.
  • the yarn sucking device 7 always sucks the air, and when the air defect detector 9 detects a defect in the yarn Y, sucks and removes pieces of the yarn Y cut by the cutter 8.
  • the waxing device 11, provided downstream of the yarn slack eliminating device 10, is designed to, for example, applies tension using a movable guide roller urged in a direction in which it is separated from a fixed guide roller. These guide rollers are not shown in the drawings.
  • the winding device 12 winds the yarn Y around a bobbin held on a cradle arm 14 to form the package 16.
  • the winding device 12 comprises a rotating drum 13 that rotates in contact with the bobbin 15 or the package 16.
  • the cradle arm 14 is configured to move rotatively to contact or separate the bobbin 15 or the package 16 with or from the rotating drum 13.
  • the yarn slack eliminating device 10 provided in each winding unit 2, does not engage with the yarn Y during normal spinning as shown in Figures 3 to 5 and can engage with the yarn Y during a yarn splicing operation (see Figures 7 and 8 ).
  • the yarn slack eliminating device 10 comprises a yarn slack eliminating roller 21 that winds the yarn Y around its outer peripheral surface 21a, a yarn threading member 22 that concentrically rotates synchronously with or independently of the slack eliminating roller 21 in accordance with certain conditions, an upstream side guide 23 arranged slightly upstream of the slack eliminating roller 21, driving means 35 such as a stepping motor which rotatively drives the slack eliminating roller 21, and a downstream side guide 36 provided downstream of the slack eliminating roller 21 and having a slit 36a.
  • the upstream side guide 23 is drivingly advanced and withdrawn by advance and withdraw driving means 24.
  • the advance and withdraw driving means 24 may be mounted on the work carriage 3 or integrated with the yarn slack eliminating device 10. If the advance and withdraw driving means 24 is integrated with the yarn slack eliminating device 10, control means (not shown in the drawings) provided on the work carriage 3 outputs control signals for the advance and withdraw driving means 24.
  • a side of the slack eliminating roller 21 which has the yarn threading member 22 is defined as a leading end P and its side connected to the driving means 35 is defined as a proximal end Q. Then, the slack eliminating roller 21 is connected to a driving shaft 35a of the driving means 35 using a screw screwed through the outer peripheral surface 21a. Tapered portions 21b, 21d are formed on the proximal end Q side and leading end P side, respectively, of the outer peripheral surface 21a so that their diameters increase toward the corresponding end surfaces.
  • An intermediate portion of the slack eliminating roller 21 is a cylindrical portion 21c having a fixed diameter.
  • the yarn Y spun by the spinning device 5 is wound around the outer peripheral surface 21a from the proximal end Q side.
  • the yarn Y is then unwound from the leading end P to the winding device 12 (see Figures 9 to 11 ).
  • the tapered portion 21b on the proximal end Q side has a function of regularly winding the yarn Y around a surface of the cylindrical portion 21c by smoothly moving the supplied and wound yarn Y from a larger diameter portion 21b-1 to a smaller diameter portion 21b-2 and then to the intermediate cylindrical portion 21c.
  • the tapered portion 21d on the leading end P side also has a function of ensuring the smooth pull-out of the yarn Y by inhibiting a slip-out phenomenon in which the wound yarn Y slips out at a time, while sequentially winding the yarn Y around a small diameter portion 21d-2 and then a larger diameter portion 21d-1.
  • the yarn threading member 22 is provided on the leading end P side of the slack eliminating roller 21 and a bar-like member 22a is attached to the slack eliminating roller 21, so as to be concentrically rotated by a transmitted force adjusting mechanism relative to the slack eliminating roller 21.
  • the transmitted force adjusting mechanism is configured as follows.
  • a wheel member 22b is rotatably installed, via a bearing member 22c such as a bearing, on a shaft portion 21e projected from a central portion of the slack eliminating roller 21.
  • the proximal portion of the bar-like member 22a is attached to the wheel member 22b.
  • the wheel member 22b is attached by preventing a transmitted force applying member 22f composed of urging means such as a spring from slipping out, using a transmitted force adjustment operating section 22g screwed over a bolt portion at the leading end of the shaft portion 21e and composed of, for example, a nut member 22d, a presser member 22e, and the like.
  • the transmitted force adjusting mechanism can adjust the pressing force (frictional force) of the transmitted force applying mechanism 22f in a non-step-by-step manner by tightening the transmitted force adjustment operating section 22g screwed over the shaft portion 21e.
  • the transmitted force adjusting mechanism can adjust the magnitude of the rotational resistance of the bar-like member 22a to the slack eliminating roller 21.
  • the pressing force of the transmitted force applying member 22f, exerted on the wheel member 22b is reduced by loosening the presser member 22e. Accordingly, only a light load enables the bar-like member 22a to rotate independently of the slack eliminating roller 21.
  • the pressing force of the spring 22f, exerted on the wheel member 22b is increased by tightening the presser member 22e. Accordingly, the bar-like member 22b rotates integrally with the slack eliminating roller 21 unless a very heavy load acts on it.
  • the yarn threading member 22 according to the present embodiment can be set, by appropriately adjusting the tightening of the presser member 22e, to rotate integrally with the slack eliminating roller 21 when the load on the bar-like member 22a has a specified value or smaller and to rotate independently of the slack eliminating roller 21 when the load on the bar-like member 22a exceeds the specified value.
  • the bar-like member 22a engages with the yarn Y (see Figures 7 and 8 ) to allow the yarn Y to be reliably wound around the outer peripheral surface 21a of the slack eliminating roller 21.
  • the bar-like member 22a thus has a characteristic shape described below.
  • the bar-like member 22a first rises from its proximal end to a position where it projects slightly forward beyond the leading end P of the slack eliminating roller 21.
  • the bar-like member 22a then bends at a bent portion n near the axis of the roller 21 so as to extend in a radial direction, and then bends at three portions (m), (l) and (k) located in this order from the inside to outside of the roller.
  • a leading end portion (j) of the bar-like member 22a is located outside the radius of the slack eliminating roller 21.
  • the two bent portions (k) and (l) lie outside the radius of the slack eliminating roller 21, while the one bent portion (m) is located inside the radius of the slack eliminating roller 21.
  • the bar-like member 22a bends at the inward bent portion (m) so as to extend in a direction opposite to the rotating direction of the slack eliminating roller 21.
  • the bar-like member 22a then bands at the next bent portion (l) toward the proximal end Q side of the slack eliminating roller 21 and finally at the outer bent portion (k) so as to extend in the rotating direction of the slack eliminating roller 21.
  • the bar-like member 22a has a yarn engaging portion R formed of the leading end portion (j), the bent portion (k), and the bent portion (l) and having an angle that opens toward the rotating direction of the slack eliminating roller 21.
  • the yarn engaging section R is located above the outer peripheral surface 21a of the slack eliminating roller 21 between the leading end P and proximal end Q of the slack eliminating roller 21.
  • the bar-like member 22a rotates with the slack eliminating roller 21 to enable the yarn Y engaged with the bar-like member 22a during slack elimination to be stably wound around the outer peripheral surface 21a of the slack eliminating roller 21 at a predetermined position.
  • the bar-like member 22a also prevents the yarn Y from fitting into the gap between the slack eliminating roller 21 and the bar-like member 22a.
  • the upstream side guide 23, driven forward and backward by the advance and withdraw driving means 24 such as an air cylinder, is set as follows.
  • the upstream side guide 23 holds the yarn path at a position where the yarn Y does not engage with the yarn slack eliminating device 10.
  • the upstream side guide 23 moves the yarn path to a position where the yarn Y engages with the bar-like member 22a of the yarn slack eliminating device 10 and is wound around the slack eliminating roller 21.
  • the upstream side guide 23 of the yarn slack eliminating device 10 holds the yarn path at a position where the yarn Y does not engage with the yarn slack eliminating device 10 at the forward position during the normal spinning.
  • Each spinning unit 2 of the spinning machine 1 uses the draft device 4 to feed the bundle of fibers S into the spinning device 5.
  • the spinning unit 2 uses the yarn feeding device 6 to feed downstream the yarn Y spun and generated by the spinning device 5.
  • the spinning unit 2 then passes the yarn Y directly in front of the suction device 7 and the yarn defect detector 9. Subsequently, the spinning unit 2 feeds the yarn Y to the winding device 12 via the upstream side guide 23, the downstream side guide 36, and the waxing device 11.
  • the winding device 12 then winds the yarn Y around the bobbin 15 to form the package 16.
  • the cutter 8 of the winding unit 2 cuts the yarn Y.
  • the back roller 4a and third roller 4b of the draft device 4 stop rotations.
  • the cradle arm 14 moves rotatively to separate the package 16 from the rotating drum 13 (see Figure 6 ). Subsequently, the package 16 naturally stops rotation or is forced to stop depending on the situation.
  • the second roller 4d and the front roller 4e continue to be rotatively driven.
  • a winding device 12 side part Y2 of the yarn Y cut by the cutter 8 is wound around the package 16, which is continuously rotated by inertia.
  • the back roller 4a and third roller 4b of the draft device 4 stop rotations to pull and cut the bundle of fibers S between the stopped third roller 4b and the continuously rotating second roller 4d.
  • a yarn piece extending from the cut position to the position of the cutter 8 is fed by the continuously rotating second roller 4d and front roller 4e. The yarn piece passes through the spinning device 5 and is then sucked and removed by the yarn sucking device 7.
  • the work carriage 3 runs and moves to the position of the spinning unit 3 that requires splicing. Once the work carriage 3 arrives at a predetermined position, an arrival detection signal is outputted. Then, on the basis of this signal, the spinning unit 2 starts rotating the slack eliminating roller 21 of the yarn slack eliminating device 10 at an appropriate time.
  • the work carriage 3 performs the following splicing operation.
  • the suction pipe 18 is rotatively moved upward to position the suction port 18a near the yarn discharge port in the spinning device 5. Consequently, the spinning unit 2 reactivates the stopped back roller 4a and third roller 4b to bring them into a driven state.
  • the bundle of fibers S is thus fed into the spinning device 5 to restart spinning.
  • the suction pipe 18 sucks and catches the yarn end of the yarn Y1 continuously spun by the spinning device 5.
  • the suction pipe 18 then moves downward to its initial position shown by the solid line in Figure 6 to guide the yarn Y1 to the yarn splicing device 17.
  • the suction port 7a in the yarn sucking device 7 is closed.
  • the yarn Y1 is introduced into the yarn feeding device 6 from a side of the nip roller 6a using a separately provided yarn handling means or the like.
  • the suction pipe 18 continuously sucks the yarn Y1 generated and fed by the spinning device 5 until a subsequent yarn splicing operation is started.
  • the suction mouth 19 is rotatively moved downward to the position shown by the alternate long and two short dashes line in Figure 6 .
  • the suction port 19a at the tip of the suction mouth 19 is used to suck and catch the yarn end of the yarn Y2 from the package 16 having stopped rotating.
  • the yarn Y2 is thus pulled out.
  • the suction mouth 19 is rotatively moved upward to its initial position shown by the solid line in Figure 6 .
  • the winding device 12 side yarn Y2 is thus positioned near the yarn splicing device 17.
  • the yarn splicing device 17 starts a yarn splicing operation.
  • a yarn handling lever (not shown in the drawings) provided in the yarn splicing device 17 clamps and loads both yarns Y1, Y2 into a work executing section of the yarn splicing device 17.
  • a yarn splicing operation is then performed. Before the yarn splicing operation is started, the upstream side guide 23 of the yarn slack eliminating device 10 is still at the forward position to hold the yarn path at a position where it does not engage with the yarn threading member 22.
  • the suction pipe 18 can no longer suck or collect the yarn Y1. Accordingly, the yarn Y1, fed by the spinning device 5, is collected upstream of the yarn splicing device 17 if no action is taken.
  • the advance and withdraw driving means 24 is activated to withdraw the upstream side guide 23 as shown in Figures 7 and 8 .
  • the yarn Y1 changes its yarn path so as to engage with the bar-like member 22a of the yarn threading member 22. Operation signals for the advance and withdraw driving means 24 are outputted by the control means of the work carriage 3 using appropriate timing.
  • the upstream side guide 23 itself functions as yarn moving means for moving the yarn Y1 from a yarn path (on which the yarn can engage with the bar-like member 22a) joining the upstream side guide 23, which lies at the backward position, and downstream side guide 36 together so as to establish the shortest distance between them, to a yarn path on which the yarn does not engage with the bar-like member 22a.
  • the upstream side guide 23 may be fixed, while separate yarn moving means may be provided.
  • the bar-like member 22a can be rotated independently of the slack eliminating roller 21. However, it rotates integrally with the slack eliminating roller 21 unless a load of a specified value or larger acts on the bar-like member 22a. During the yarn slack eliminating operation, yarn tension is weak and only a light load acts on the bar-like member 22a. The bar-like member 22a thus rotates integrally with the slack eliminating roller 21.
  • the bar-like member 22a Since the bar-like member 22a is formed as described previously, it is ensured to engage with the yarn Y. Furthermore, the yarn Y does not fit into the gap between the slack eliminating roller 21 and the bar-like member 22a during winding. Moreover, the withdrawal of the upstream side guide 23 is an operation preformed in a direction in which the length of the yarn path is reduced to relax the yarn tension. Accordingly, an increase in yarn tension is reduced when the yarn Y1 engages with the bar-like member 22a. This prevents yarn breakage.
  • the rotation speed of the slack eliminating roller 21 is set so as to provide an appropriate yarn tension, on the basis of a speed at which the spinning device 5 spins the yarn Y (substantially a speed at which the yarn feeding device 6 feeds the yarn).
  • the time when the upstream side guide 23 moves is determined taking the spinning speed of the yarn Y1 into account. Using as a reference the time when the yarn splicing device 17 clamps the yarns Y1, Y2, the above time is set, for example, to be slightly before this clamp time. When this movement occurs before the set time, the yarn Y1, successively spun by the spinning device 5, may be slacked. The slack eliminating roller 21 may then fail to catch the yarn Y1.
  • the yarn Y1 positioned in the yarn splicing device 17 may be wound around the slack eliminating roller 21, resulting in an incomplete yarn splicing operation.
  • the cradle arm 14 is rotatively moved to contact the package 16 with the rotating drum 13. Then, the operation of winding the yarn Y is restarted. However, the yarn Y undergoes a reduced tension immediately after the yarn splicing has been completed. Accordingly, when the package 16 is rapidly brought into contact with the rotating drum 13, the yarn tension may vary rapidly to excessively tense and break the yarn Y.
  • the present embodiment provides a tension arm 20 which tenses the yarn Y and which can advance and withdraw and a speed limiting mechanism 26 that adjusts the rotative movement speed of the cradle arm 14, as shown in Figure 12 .
  • the tension arm 20 is a lever structure such as the illustrated one.
  • the tension arm 20 presses the yarn Y to increase its tension immediately before the contact of the package 16 with the rotating drum 13 is completed.
  • the speed limiting mechanism 26 is constructed utilizing a cam 26a, a link 26b, and the like.
  • the speed limiting mechanism 26 is connected to a junction 26c provided in the cradle arm 14 to limit the rotative movement speed of the cradle arm 14 immediately before the package 16 comes into contact with the rotating drum 13.
  • the tension arm 20 and the speed limiting mechanism 26 operate as shown in, for example, the time chart in Figure 13 .
  • the cradle arm 14 first starts moving rotatively.
  • the speed limiting mechanism 26 controls the cradle arm 14 so that its rotative movement speed (angular speed) does not exceed a predetermined value.
  • angular speed angular speed
  • the angular speed of the cradle arm 14 is reduced to a specified value.
  • This low angular speed is maintained.
  • This angular speed control allows the package 16 to come into sliding contact with the surface of the rotating drum 13. This relaxes a shock upon contact.
  • the tension arm 20 is advanced after the cradle arm 14 has started the sliding contact and before the contact is completed.
  • the yarn Y is thus tensed.
  • the yarn Y undergoes a reduced tension immediately after the yarn splicing has been finished.
  • the package 16 contacts completely with the rotating drum 13 to restart a regular winding operation.
  • the yarn tension then increases rapidly.
  • the yarn tension is slightly increased before the package 16 finishes contacting with the rotating drum 13, that is, before the yarn tension increases rapidly.
  • a variation in yarn tension can be reduced when a regular winding operation is restarted, thus preventing the yarn from being excessively tensed and broken.
  • the tension arm 20 is immediately withdrawn and separated from the yarn Y. This avoids affecting yarn quality and applying an extra tension.
  • the work carriage 3 no longer engages with the yarn Y and can move freely from the spinning unit 2 on which the spinning operation has been performed. Accordingly, when another spinning unit outputs a yarn splicing request signal, the work carriage 3 can move immediately to the position of the target spinning unit after the winding operation has been restarted, without waiting for the yarn to be unwound from the slack eliminating roller 21. Consequently, the spinning machine 1 according to the present invention saves the time required by the work carriage 3 to remain at a single spinning unit 2. This enables consecutive yarn splicing operations to be finished within a time shorter than that required in the prior art.
  • the yarn Y generated and fed by the spinning device 5 is wound around the continuously rotating slack eliminating roller 21.
  • the yarn tension increases above a specified value because the ratio of the winding speed to the spinning speed is set so as to apply an appropriate tension to the yarn.
  • a load of a value larger than the one set by the transmitted force adjusting mechanism acts on the bar-like member 22a.
  • the bar-like member 22a starts rotating independently of the slack eliminating roller 21, which is continuously rotating in the winding direction.
  • the yarn wound and retained around the slack eliminating roller 21 is thus gradually unwound from the slack eliminating roller 21.
  • the bar-like member 22a of the yarn threading member 22 executes a function to guide the yarn Y so that it is uniformly unwound from the slack eliminating roller 21, while preventing the yarn Y from slipping out.
  • the bar-like member 22a also executes a function to contact with the yarn Y to allow it to offer an appropriate resistance to set a proper yarn tension, thus making the winding of the package 16 uniform.
  • the yarn threading member 22 is a single member having two functions. That is, the yarn threading member 22 provides a yarn guiding function to introduce the yarn Y1 into the slack eliminating roller 21 immediately before the start of a yarn splicing operation.
  • the yarn threading member 22 also provides an unwinding tension applying function to apply a predetermined unwinding tension to the yarn woun. around the slack eliminating roller 21 when this yarn is unwound. This effectively reduces the number of parts constituting the yarn slack eliminating device 10.
  • the slack eliminating roller 21 is reversely rotated through almost 180 degrees to a position where the bar-like member 22a does not contact with the yarn Y, as shown in Figures 15C and 15D . Subsequently, the slack eliminating roller 21 is stopped. This makes it possible to avoid degrading the yarn Y. After the slack eliminating roller 21 has been reversely rotated and then stopped, the upstream side guide 23 is advanced to return to its initial position shown in Figures 3 and 4 .
  • timer control can be used to adjust timing for reversely rotating the slack eliminating roller 21.
  • the slack eliminating roller 21 may be set to be automatically reversely rotated and then stopped after the slack eliminating roller 21 has rotated for a predetermined time since the start of the yarn slack eliminating operation in the yarn slack eliminating device 10.
  • a tension sensor may be arranged at an appropriate position located upstream or downstream of the slack eliminating roller 21 to monitor the tension of the yarn being unwound. Then, once the tension value meets a specified condition, the slack eliminating roller 21 may be reversely rotated and then stopped.
  • the cutter 8 and the yarn defect detector 9 are arranged upstream of the yarn slack eliminating device 10 and close to each other. The reason will be described below.
  • the cutter 8 When the cutter 8 is located downstream of the yarn slack eliminating device 10, if the yarn defect detector 9 detects a defect while the slack eliminating roller 21 is eliminating the slack, then the upstream yarn end cut by the cutter 8 remains wound around the slack eliminating roller 21. To remove this yarn end, a complicated arrangement and complicated control are required. That is, removal means separately provided downstream of the cutter 8 must be used discard the remaining yarn end while the slack eliminating roller 21 is being reversely rotated.
  • the cutter 8 is located upstream of the yarn slack eliminating device 10, whereas the yarn defect detector 9 is arranged downstream of the yarn slack eliminating device 10.
  • the cutter 8 cuts the yarn Y.
  • the length of the yarn Y between the yarn end cut by the cutter 8 and the yarn defect portion detected by the yarn defect detector 9 increases by an amount equal to the length of the yarn Y wound around the slack eliminating roller 21. Consequently, a large amount of yarn Y may be discarded or a long time may be required for suction.
  • the suction mouth 19 may not be able to suck or catch the yarn defect portion and thus the yarn defect portion may fail to be removed before yarn splicing.
  • the yarn defect portion may be wound into the package 16. Therefore, for the above described reason, the cutter 8 and the yarn defect detector 9 are preferably arranged upstream of the yarn slack eliminating device 10 and close to each other.
  • the upstream side guide 23 is advanced immediately before yarn slack elimination carried out by the slack eliminating roller 21 partly because the yarn Y must be removed from the yarn defect detector 9 while the yarn path of the yarn Y is at an unengaged position immediately before the slack elimination.
  • the upstream side guide 23 of the slack eliminating roller 21 may be fixed, whereas the downstream side guide 36 may be movable, as shown in Figure 19 .
  • the upstream side guide 23 is preferably advanced to bend the yarn Y in removing the yarn from the yarn defect detector 9. This operation reduces a movement stroke and can prevent the member from projecting excessively compared to the case in which the downstream side guide 36 is advanced and withdrawn.
  • the embodiments of the present invention are not limited to the above described aspects.
  • the present invention is applied to a spinning machine having a plurality of spinning units.
  • the present invention is applicable to a single spindle type spinning machine.
  • the yarn splicing device 17 is mounted on the work carriage 3 and this single yarn splicing device 17 performs yarn splicing operations on all the spinning units 2.
  • an arrangement may be employed in which the yarn splicing device 17 is provided for each spinning unit 2.
  • the work carriage 3 can be omitted.
  • the yarn slack eliminating device 10 may be mounted on the work carriage 3 so that this single yarn slack eliminating device 10 can perform yarn slack eliminating operations on all the spinning units.
  • the present invention is applied to the spinning machine designed so that during normal winding, the yarn Y is not wound around the slack eliminating roller 21.
  • the present invention may be utilized to construct a spinning machine adapted to adjust the winding speed to slack the yarn even during normal winding so that the yarn Y is always wound around the slack eliminating roller 21.
  • the present invention is applicable to, for example, the case in which cone packages are formed and in which the yarn Y is always wound around the slack eliminating roller 21 in order to absorb a difference in winding tension resulting from a difference in winding speed between the larger diameter side and smaller diameter side of the package.
  • the specific configuration or shape of the present invention may be properly changed in accordance with the situation.
  • a spinning machine is known in which if yarn breakage occurs in one of the spinning units constituting the spinning machine, a yarn splicing operation is performed by the yarn splicing device disposed in the spinning unit or disposed on the work carriage running along the spinning machine as described in the above embodiments.
  • a spinning machine provided with a spinning device as described above is disclosed in, for example, the Unexamined Japanese Patent Application Publication No. 2001-40532 .
  • the above spinning machine does not have any means for sensing whether or not the suction mouth has sucked and caught the yarn end wound around the package. Accordingly, even if the suction mouth fails to suck and catch the lower yarn, a bundle of fibers is still supplied to the spinning device. Then, the generated yarn is sucked and removed by the suction pipe. As a result, the bundle of fibers may be wasted.
  • a fourth embodiment of the present invention solves the above described problem of the spinning machine equipped with the conventional yarn splicing device.
  • S1 is a lower-yarn detecting member disposed on the work carriage 3.
  • the lower-yarn detecting member S1 is arranged so as to stand near the lower yarn Y2 extending from the package 16 to the suction mouth 19 when the suction mouth 19 returns to a standby position, shown by a solid line in Figure 21 , after sucking and catching the lower yarn Y2 wound into the package 16, as described above.
  • the lower-yarn detecting member S1 can be configured as a reflection type photoelectric sensor s1 that does not contact with the lower yarn Y2; that is, this sensor S1 is of a non-contact type.
  • a reverse rotating roller 120 causes the suction mouth 19 to rotatively move downward from the standby position, shown by the solid line in Figure 21 , to approach the package 16 as shown by the alternate long and two short dashes line in the figure, the package 16 being rotated in a direction opposite to the normal winding direction.
  • the suction mouth 19 thus sucks and catches the lower yarn Y2 wound into the package 16. Subsequently, the suction mouth 19 returns to the standby position, shown by the solid line in the figure. Then, the lower yarn Y2 sucked and caught by the suction mouth 19 is unwound from the package 16. During the unwinding, the yarn Y is wound while being traversed by a traverse device T.
  • the photoelectric sensor s1 transmits a lower-yarn detection pulse to a control section disposed on the work carriage 3 and described later.
  • the lower-yarn detecting member S1 detects the lower yarn Y2 being traversed. Accordingly, the lower-yarn detecting member S1 is preferably arranged above an axial and substantially central portion of the package 16 (in a direction in which the lower yarn 2 is unwound).
  • the lower yarn Y2 is traversed and ensured to cross the photoelectric sensor s1. Accordingly, by detecting about one or two pulses, the lower-yarn detecting member S1 can determine and detect that the yarn end caught in the package 16 has been pulled out.
  • the lower-yarn detecting member S2 shown in Figure 23 , is configured as a detecting guide member s2 disposed on the work carriage 3 and having a yarn groove s2a.
  • the suction mouth 19 sucks and catches the lower yarn Y2 wound around the package 16 and then returns to the standby position, shown by the solid line in Figure 21 , the lower yarn Y2 is inserted into the yarn groove s2a.
  • a photoelectric sensor s2b or the like (not shown in the drawings) disposed near the yarn groove s2a detects the lower yarn Y2 sucked by the suction mouth 19.
  • the position where the yarn contacts with the lower-yarn detecting member S2 varies depending on the positions of the yarn Y being traversed and the lower-yarn detecting member S2. This may vary the tension of the lower yarn Y2.
  • the lower-yarn detecting member S2 is preferably of a non-contact type similarly to the lower-yarn detecting member S1.
  • a lower-yarn detecting member such as a photoelectric sensor may be provided in the suction mouth 19.
  • the lower yarn Y2 sucked and caught by the suction mouth 19 may be caught in the lower-yarn detecting member.
  • the non-contact type lower-yarn detecting member S1 is preferably used which detects the traverse of the lower yarn S2 being unwound and which does not contact with the lower yarn Y2 sucked and caught in the suction mouth 19.
  • Figure 24 shows a driving stop timing for the back roller 4a and third roller 4b, a forward and backward timings for the movable (upstream side) guide 23, and a rotation stop timing for the slack eliminating roller 21 used if the suction mouth 19 does not make any mistakes in sucking or catching the lower yarn Y2, resulting in successful yarn splicing, as described above.
  • the movable guide 23 is advanced (time T1).
  • the slack eliminating roller 21 starts rotating (time T2) simultaneously with the restart of driving of the back roller 4a and third roller 4b.
  • the lower-yarn detecting member S1 keeps detecting that the suction mouth 19 is sucking and catching the lower yarn Y2, for a predetermined time after the restart of driving of the back roller 4a and third roller 4b (times T3 ⁇ T4). Subsequently, the movable guide 23 is withdrawn (time T5).
  • the machine can be configured so that the slack eliminating roller 21 is stopped if the yarn Y is completely unwound from the slack eliminating roller 21.
  • the suction mouth 19 is rotatively moved downward from the standby position, shown by the solid line in Figure 12 , to the position shown by the alternate long and two short dashes line. Then, the reverse rotating roller 120 is used to allow the suction port 19a in the suction mouth 19 to near the package 16 rotating in the direction opposite to the normal winding direction. Then, an operation of sucking and catching the lower yarn Y2 wound into the package 16 is performed for a predetermined time. However, when the suction mouth 19 is returned to the upper standby position, if the lower yarn Y2 has not sucked or caught in the suction mouth 19, the lower-yarn detecting member S2 does not output any lower-yarn detection pulses during times T3 and T4.
  • the control section C1 disposed on the work carriage 3 gives an instruction to immediately stop driving the back roller 4a and the third roller 4b via a calculating section C2 (see Figure 26 ) and the driver substrate 30 (time T4).
  • a calculating section C2 see Figure 26
  • the driver substrate 30 time T4
  • the bundle of fibers S supplied between times t2 and t4 is formed by the spinning device 5 into the yarn Y, sucked by the suction pipe 18, and then discarded. Then, until the yarn end of the upper yarn Y1 formed by stopping driving the back roller 4a and the third roller 4b to cut the bundle of fibers S passes above the movable guide 23 (time T6), the control section C1 holds the movable guide 23 at its advanced position. The control section C1 also provides such control as prevents the upper yarn Y1 from engaging the bar-like member 22a.
  • timer means for counting the elapse of a predetermined time from the time T4, when the supply of the bundle of fibers S is stopped, or detecting means for detecting that the yarn end of the upper yarn Y1 has passed through the movable guide 23.
  • Figure 26 illustrates a control block as an example.
  • the result of detection of the lower yarn Y2 executed by the lower-yarn detecting member S1 is transmitted to the control section C1 of the work carriage 3.
  • instructions from the control section C1 of the work carriage 3 drive or stop the driving of the advance and withdraw driving means 24, composed of an air cylinder or the like, and move the movable guide 23 forward and backward, which is disposed in the spinning unit 2.
  • the advance and withdraw driving means 24 is composed of an air cylinder, and an instruction from the control section C1 controls a solenoid valve V that supplies or interrupts the supply of compressed air from a compressed air source to the advance and withdraw driving means 24.
  • C3 is a yarn splicing operation re-instructing section for instructing on a yarn splicing operation again on the basis of the detection of a mistake in the pull-out of the lower yarn Y2, carried out by the yarn splicing device 17. Even if the suction mouth 19 makes a mistake in sucking and catching the lower yarn Y2, the upper yarn Y1 spun by the splicing device 5 is not wound around the slack eliminating roller 21 because the movable guide is at its advanced position. Consequently, even if a mistake is made in pulling out the lower yarn Y2, the yarn splicing operation can be performed again.
  • each spinning unit 2 is provided with the members installed on the work carriage 3 and required for a yarn splicing operation, for example, the yarn splicing device 17, the suction pipe 18, the suction mouth 19, and the advance and withdraw driving means 24.
  • a yarn winder comprises guide members arranged on an upstream and downstream sides, respectively, of the slack eliminating roller, a yarn threading member arrange at a position where the yarn threading member can be engage with a yarn on the shortest yarn path between the upstream side guide and the downstream side guide, and yarn moving means for moving the yarn from the shortest yarn path to a yarn path on which the yarn does not engage with the yarn threading member. Consequently, if a yarn splicing operation is to be performed, then before the start of the operation, the yarn moving means holds the yarn away from the yarn path corresponding to the shortest distance and at a position at which the yarn does not engage with the yarn threading member.
  • the yarn is moved to the position of the yarn path corresponding to the shortest distance and is then engaged with the yarn threading member. Accordingly, the direction of the operation of engaging the yarn with the yarn threading member does not involve an increase in yarn tension. Therefore, the yarn can be reliably prevented from being excessively tensed and broken.
  • the yarn winder according to the present invention is adapted as set forth in Claim 3. That is, a yarn detect detector and a cutter are provided upstream of the slack eliminating roller, and the movable upstream side guide provided upstream of the slack eliminating roller is moved to enable the yarn to be moved between the position where the yarn can engage with the yarn threading member and the position where the yarn does not engage with the yarn threading member, so that the yarn is placed away from the yarn defect detector when the yarn path is not engaged with the yarn threading member. Then, after the yarn has been cut, a part of the yarn remaining on the slack eliminating roller can be easily processed. Consequently, many advantages are obtained.
  • the yarn winder is provided with a detecting member that detects whether or not the yarn end wound around a package has been pulled out by a winding side yarn end catching member and control means for controlling a supply of a bundle of fibers on the basis of the detection result from the detecting member so that the supply of the bundle of fibers is stopped when the yarn end fails to be pulled out of the package. Consequently, the bundle of fibers can be prevented from being wasted. It is also possible to quickly and reliably retain a large amount of yarn supplied during a yarn splicing operation without the need to increase the length of a yarn sucking device or to increase the yarn suction force of the yarn sucking device as in the case of conventional yarn winders (spinning machines). Furthermore, even if a mistake is made in withdrawing the winding side yarn end, the yarn can be prevented from being wound around the slack eliminating roller 21 to eliminate the need for the operator's removing operation.
  • the detecting member is of a non-contact type that does not contact with a yarn. This prevents the yarn from being degraded by its contact with the detecting member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Claims (6)

  1. Fadenspulmaschine bestehend aus einer Fadendurchhang-Beseitigungsvorrichtung (10), dadurch gekennzeichnet, dass die Fadendurchhang-Beseitigungsvorrichtung (10) eine Durchhangbeseitigungsrolle (21), stromauf- bzw. stromabwärtige Führungen (23, 36) der Durchhangbeseitigungsrolle (21) und ein Fadeneinfädelelement (22) aufweist, und das Fadeneinfädelelement (22) an einer Stelle angeordnet ist, an der es den Faden an der kürzesten Fadenbahn zwischen der stromaufwärtigen Führung (23) und der stromabwärtigen Führung (36) erfassen kann, sowie die Fadendurchhang-Beseitigungsvorrichtung (10) eine Fadenverschiebungseinrichtung (24) aufweist, um den Faden von der kürzesten Fadenbahn zu einer Fadenbahn zu verschieben, auf der der Faden nicht am Fadeneinfädelelement (22) angreift.
  2. Fadenspulmaschine nach Anspruch 1, dadurch gekennzeichnet, dass mehrere Spulstellen in der Fadenspulmaschine angeordnet sind, und jede mit einer Fadendurchhang-Beseitigungsvorrichtung (10) versehen ist, und eine Antriebseinrichtung für die Fadenverschiebungseinrichtung (24) bzw. eine Steuereinrichtung für die Antriebseinrichtung an einem Arbeitswagen (3) angeordnet ist, auf dem eine Fadenverbindungsvorrichtung angeordnet ist und der sich längs der Spulstellen bewegen kann.
  3. Fadenspulmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Fadenfehlerdetektor (9) und eine Schneidvorrichtung (8) stromaufwärts der Durchhangbeseitigungsrolle angeordnet sind, die Schneidvorrichtung (8) einen Faden auf der Grundlage eines Detektionsergebnisses des Fadenfehlerdetektors (9) schneidet, und die verstellbare stromaufwärtige Führung, die stromaufwärts der Fadenbeseitigungsrolle (10) angeordnet ist, verstellt wird, damit der Faden zwischen der Position, in der der Faden an dem Fadeneinfädelelement (22) angreifen kann und der Position, in der der Faden nicht am Fadeneinfädelelement angreift, verstellt werden kann, so dass der Faden entfernt vom Fadenfehlerdetektor (9) angeordnet wird, wenn der Faden nicht am Fadeneinfädelelement angreift.
  4. Fadenspulmaschine nach einem der Ansprüche 1 bis 3, gekennzeichnet durch eine Spulvorrichtung, die einen zugeführten Faden in eine Auflaufspule (16) spult, eine Fadenverbindungsvorrichtung (17), die ein zulieferseitiges Fadenende mit einem spulseitigen Fadenende verbindet, und ein Fangelement (19), das das spulseitige Fadenende aus der Auflaufspule (16) zieht und fängt, und durch ein Detektorelement (S1), das feststellt, ob das Fadenende, das um eine Auflaufspule (16) gespult wurde, von dem Fangelement (19) für das spulseitige Fadenende gezogen wurde oder nicht, eine Steuereinrichtung zur Steuerung der Zufuhr eines Faserbündels auf der Grundlage des Detektionsergebnisses des Detektorelements (S1), und eine Steuereinrichtung zur Steuerung des Spulvorgangs des Fadens um die Durchhangbeseitigungsrolle auf der Grundlage des Detektionsergebnisses des Detektorelements (S1).
  5. Fadenspulmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die Spulvorrichtung eine Traversiervorrichtung (T) hat, die den zugeführten Faden traversiert, und das Detektorelement (S1) das Traversieren des spulseitigen Fadens überprüft, der von dem Fangelement für das spulseitige Fadenende erfasst und von einer Auflaufspule abgespult wurde.
  6. Fadenspulmaschine nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass das Detektorelement (S1) von einem kontaktfreien Typ ist, das den Faden nicht kontaktiert.
EP20040003082 2003-03-13 2004-02-11 Vorrichtung zur Fadenspannungsregelung und zur Beseitigung von Fadenlockerungen in einer Garnwickeleinrichtung Expired - Lifetime EP1457446B9 (de)

Applications Claiming Priority (6)

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JP2003067526A JP3700706B2 (ja) 2003-03-13 2003-03-13 紡績機
JP2003067526 2003-03-13
JP2003070122 2003-03-14
JP2003070122A JP2004277921A (ja) 2003-03-14 2003-03-14 紡績機
JP2003072677A JP3888319B2 (ja) 2003-03-17 2003-03-17 糸弛み取り装置を備えた紡績機
JP2003072677 2003-03-17

Publications (4)

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EP1457446A2 EP1457446A2 (de) 2004-09-15
EP1457446A3 EP1457446A3 (de) 2005-04-27
EP1457446B1 true EP1457446B1 (de) 2010-04-21
EP1457446B9 EP1457446B9 (de) 2010-11-17

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CN103484990A (zh) * 2012-06-07 2014-01-01 村田机械株式会社 纺纱单元以及纺纱机

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JP2009046778A (ja) * 2007-08-21 2009-03-05 Murata Mach Ltd 巻取テンション制御装置
JP2009242095A (ja) * 2008-03-31 2009-10-22 Murata Mach Ltd 自動ワインダ
JP5526885B2 (ja) * 2009-10-07 2014-06-18 村田機械株式会社 紡績ユニット
JP2011157196A (ja) * 2010-02-02 2011-08-18 Murata Machinery Ltd 糸巻取機
CN101974826A (zh) * 2010-11-04 2011-02-16 上海帝奇自动化设备有限公司 一种针织电脑横机防罗拉卷带现象的检测装置及其检测方法
JP2013067891A (ja) * 2011-09-21 2013-04-18 Murata Mach Ltd 紡績ユニット及び紡績機
CN102943360B (zh) * 2012-11-12 2014-10-22 无锡市三达纺配有限公司 用于s捻特种纱线的旋流退捻器
CZ304712B6 (cs) * 2013-12-20 2014-09-03 Rieter Cz S.R.O. Bubnový mezizásobník příze pro textilní stroj
JP2015209309A (ja) * 2014-04-25 2015-11-24 村田機械株式会社 巻取ドラム、巻取装置及び糸巻取機
CN107161816B (zh) * 2017-06-30 2019-02-19 昆山双路自动化科技有限公司 自动粘丝机
JP2019026980A (ja) * 2017-08-02 2019-02-21 村田機械株式会社 空気紡績機
JP2019104596A (ja) * 2017-12-12 2019-06-27 村田機械株式会社 糸巻取機及び糸巻取方法
DE102018113886A1 (de) * 2018-06-11 2019-12-12 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren bzw. Vorrichtung zur Beeinflussung des Bewicklungszustandes von Ringspinnkopsen

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DE3238376C2 (de) * 1982-10-16 1984-08-09 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Fadenspeicher
DE4104863A1 (de) * 1991-02-16 1992-08-20 Fritz Stahlecker Vorrichtung zum zwischenspeichern eines fadens

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CN103484990A (zh) * 2012-06-07 2014-01-01 村田机械株式会社 纺纱单元以及纺纱机

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EP1457446B9 (de) 2010-11-17
DE602004026656D1 (de) 2010-06-02
CN1332868C (zh) 2007-08-22
EP1457446A2 (de) 2004-09-15
EP1457446A3 (de) 2005-04-27

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