EP0534186A1 - Chambre de soufflage pour une cannette - Google Patents

Chambre de soufflage pour une cannette Download PDF

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Publication number
EP0534186A1
EP0534186A1 EP92115042A EP92115042A EP0534186A1 EP 0534186 A1 EP0534186 A1 EP 0534186A1 EP 92115042 A EP92115042 A EP 92115042A EP 92115042 A EP92115042 A EP 92115042A EP 0534186 A1 EP0534186 A1 EP 0534186A1
Authority
EP
European Patent Office
Prior art keywords
cop
blowing
blow chamber
blow
bores
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92115042A
Other languages
German (de)
English (en)
Other versions
EP0534186B1 (fr
Inventor
Dietmar Engelhardt
Heinz-Georg Wassenhoven
Gregor Rüth
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 EP0534186A1 publication Critical patent/EP0534186A1/fr
Application granted granted Critical
Publication of EP0534186B1 publication Critical patent/EP0534186B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • B65H67/086—Preparing supply packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2551/00—Means for control to be used by operator; User interfaces
    • B65H2551/20—Display means; Information output means
    • B65H2551/22—Numerical displays
    • 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 blow chamber with the features of the preamble of the first claim.
  • the cops which are fed to their unwinding point via a corresponding transport system, are wound into cross-wound bobbins.
  • this beginning of the thread must be easily detectable.
  • cop preparation units which deposit the thread at a defined position on the cop. It is widespread to have the beginning of the thread in the head tube. This beginning of the thread is then blown out of the head sleeve by a blowing nozzle and can be picked up.
  • such devices are not suitable for picking up thread ends lying on the surface of the cop after a thread break at an undefined point.
  • a yarn delivery unit which has a blowing chamber which encloses the cop to be unwound. In its interior, it has tangential and at the same time diagonally upward thread release blowing nozzles for generating a thread unwinding direction helically through the space between the cop and blowing chamber directed against the air flow directed at the thread take-up element at the winding point.
  • These thread release blowing nozzles are pressurized with compressed air after changing the bobbin and after a thread break. They extend essentially over the entire height of the blow chamber. In the case of a relatively large blowing chamber, which is also suitable for correspondingly large cops, this results in a relatively high air consumption.
  • the object of the invention is to propose a blowing chamber which has a high efficiency for loosening the thread end and which can be operated economically.
  • the arrangement of bores on an adjustable part allows a quick and safe adjustment of the blow chamber to the height of the cops to be processed by setting this part.
  • a rotatable air supply pipe can secure the supply of air to thread loosening blow nozzles at a certain height by setting a certain angular position. Since it only has to be ensured that for adjacent settings the holes in the air supply pipe must be at such a distance from one another that these holes do not overlap, a relatively large number of holes and thus settings for different bobbin lengths can be realized depending on the circumference of the pipe.
  • the additional vertical adjustment possibility of the air supply pipe also allows a variation of the tangential direction component of the blow nozzles and thus takes into account different winding directions of the cops.
  • the grid arrangement of openings in the sleeve half of the blow chamber carrying the carriage also ensures in this case that only the holes of the slide open into the interior of the blow chamber, which have the same tangential direction component, while the remaining holes between the openings are covered.
  • thread-release blowing nozzles are effective in the lower third of the head regardless of the length of the head. In this way, for example, thread ends that have fallen down on the winding after a thread break can also be loosened. These thread ends detached from the winding surface by the lower blowing nozzles are then detected by the air flow of the upper thread releasing nozzles effective at the tip of the head and transported further up to the thread take-up element.
  • a cop 10 is located in the illustration in FIG. 1 in an unwinding point 4 of a winding machine. It is plugged with its sleeve 9 onto the arbor 8 of a caddy 2.
  • the caddy has a base plate 7, which stands on a conveyor belt 5.
  • This conveyor belt 5 runs in a transport channel 6, which guides the caddies 2 along a transport path 3.
  • This transport path 3 connects a feed belt, which distributes the caddy's with cops to the individual winding stations, with a tube return belt, on which the caddy's 2 are discharged when the cop 10 has been unwound.
  • the illustration of further parts of the transport system and further caddies 2 with cops 10 which are available before the unwinding position 4 have been omitted here.
  • the caddy 2 is held on the constantly running conveyor belt 5 by means not shown here, which are formed by a separate stopper or parts of the blow chamber 1. After unwinding, this stop device is opened for the caddy 2, so that the conveyor belt 5 can transport it from the unwinding position to the sleeve return belt.
  • the blow chamber 1 consists of two sleeve halves 11 and 12, which are held by holders 13 and 15. Corresponding holders can also be arranged at the lower end of the two cuff halves 11 and 12. However, their presentation was also omitted here for reasons of clarity.
  • the holders 13 and 15 are attached to shafts 14 and 16, through and around which they can be pivoted, as indicated by double arrows.
  • the shafts 14 and 16 are connected to an actuating device of the winding unit, through which they can be rotated so far when changing the cops that the cuff halves 11 and 12 fastened to the holders 13 and 14 are pivoted so far out of the transport path that the unwound cop is the unwinding unit 4 leave and a bobbin in reserve can run into the unwinding point. This is followed by pivoting in the opposite direction, so that the sleeve halves 11 and 12 come together again to form the blow chamber 1.
  • An elongated platform 18 is arranged on the outside of the sleeve half 12.
  • Two holding shells 19 and 20 are screwed onto this elongated pedestal and surround an air guide tube 24 contained in the exploded view of FIG. 2, of which only an adjusting wheel 23 is visible in FIG. 1.
  • an air connection 21 is attached, on which a flexible air supply line is attached, which in turn is connected to a compressed air source via a switchable valve.
  • the blowing chamber is supplied with the blowing air via this flexible air supply line.
  • the thread 17 is fed through the upper opening of the blowing chamber 1 to the further thread guide members of the winding unit.
  • the thread is unwound from the so-called head cone 10 '.
  • a so-called pull-off accelerator for the thread can also be arranged in the upper region of the blow chamber 1, the illustration of which has also been omitted here for reasons of clarity.
  • its application is possible in the present invention. Its design and mode of operation is described, for example, in German patent application P 40 30 354.3.
  • the rear ends of the bores 42 and 43 facing the half-shell 19 lie in a straight line vertically one above the other, while the outlet openings on the inside of the sleeve half 12 run in a zigzag shape due to the tangential direction components.
  • the air guide bores 37 to 40 of the half-shell 19 lie directly on the outlet openings of the thread release blower nozzles 42, 43, 48 and 49 from the platform 18. This ensures a continuous air flow.
  • the air connection 21 opens between this bottom plate 34 and a lower tube edge 29 of the air guide tube 24.
  • the air can penetrate the entire length of the tube regardless of the position of the air guide tube 24, as can also be seen in FIG. 3.
  • This air can only escape through bores 25 to 28 or further bores (not shown in FIG. 2) arranged on the rear of the air guide tube 24 if these bores are aligned with the air guide bores 37 to 40 in the half-shell 19. However, this depends on the angular position of the air guide tube 24.
  • This adjusting wheel 23 In order to be able to make a targeted adjustment of the air guide tube 24, it has an adjusting wheel 23 which projects beyond the two half-shells 19 and 20 in the closed state.
  • This adjusting wheel 23 has a scale 52, which here has a scale from 0 to 7.
  • Each of these scale points is intended for a specific scope length. Its value can be read, for example, if a covering matches a marking 19 'on the top of the half-shell 19. This marking 19 'is arranged above the vertical row of air guide bores 37 to 40 of the half-shell 19. Below the respective scale point, holes are made at a height which corresponds to the blowing height which is advantageous for the respective cop length.
  • the assignment of the respective scale values to the length of the cop is via a table, which can be attached to the blowing chamber itself, for example readable.
  • it is also possible to provide the scale 52 directly with the length of the cops. 2 two holes 25 and 26 are provided one above the other for blowing the tip of the head.
  • the desired number of bores must be provided in the air guide tube 24.
  • positions can usually still be provided on the air guide tube 24 if the diameter thereof is so large that sufficient bores can be made on its circumference without overlap.
  • ring grooves 30 and 51 are provided above the tube end, which are separated by a separating ring 32.
  • the separating ring 32 is interrupted by a vertical connecting groove 31. This connecting groove 31 connects the two ring grooves 30 and 51.
  • a guide lug 36 which is fastened to the half-shell 19, engages in these annular grooves 30 and 51.
  • the respective height position of the air guide tube 24 is determined by this guide lug 36, which is alternatively arranged in the annular groove 30 or 51.
  • These The vertical position causes the bores 25 to 28 to be covered with different air guide bores 37 and 40 or 38 and 39 in the half-shell 19.
  • either the thread release blower nozzles 42 or 43 are acted upon by blown air. This results in the suitability of the two height positions of the air guide tube 24 either for cops with a P or with a Q turn.
  • bores 44 in the lower region and 45 for the tip of the head are shown in FIG. 3.
  • the nozzles 48 and 49 corresponding to the thread release blowing nozzles 42 and 43 can also be seen here in the foot region of the sleeve half 12.
  • the bores 26 act in the upper area and 27 in the lower area of a cop 10a, of which only the tip of the head is shown here.
  • the scale position 1, in which the bores 25 and 28 form the passage for the blown air, would be advantageous for a cop 10b.
  • the bores 44 and 45 are effective, which makes them particularly suitable for the cop length of a cop 10c.
  • FIG. 5 to 7 show an alternative variant of the design of a blow chamber according to the invention.
  • This blowing chamber which also surrounds the cop 10 in the winding position and already when the thread start is loosened, consists here of two sleeve halves 53 and 54. These sleeve halves 53 and 54 are fastened to levers 55 and 57, which in turn are connected to shafts 56 and 58 . Through and around these shafts 56 and 58, the sleeve halves 53 and 54 can be pivoted analogously to the first example.
  • a platform 59 is attached to the cuff half 53, which in turn is connected to a guide plate 60 for a slide 61.
  • the main body 62 of the carriage 61 has grooves 62 ′ which serve to guide it along the vertically arranged longitudinal edges of the guide plate 60. The slide 61 can thus be moved vertically along the sleeve half 53.
  • a cover profile 63 is fastened to the main body 62 of the slide 61 by means of screws 81 shown in FIG. 6.
  • Main body 62 and cover profile 63 include an air duct 64, which is connected to a compressed air source via an air connection 82 and a flexible air supply line (not shown) and a valve.
  • oblique bores 78, 78 ', 79 and 79' pass through the main body 62 and emerge on its side facing the interior of the blow chamber.
  • the main body 62 also projects into an opening 60 'of the guide plate 60 which extends along the sleeve half 53.
  • openings 80 are arranged one above the other in a corresponding grid.
  • the oblique bores 78 to 79 ′ which determine the direction of the blown air here open directly vertically one above the other, while at their other end in the air duct 64 the arrangement is zigzag. This possibility arises from the width of the air duct 64 itself.
  • the openings 80 in the sleeve half 53 are arranged at a mutual distance which corresponds to the distance between the adjacent mouths of the oblique bores 78 and 78 'or 79 and 79', the tangential direction component of which corresponds in each case.
  • the openings 80 always only allow the passage of air into the interior of the blow chamber for the oblique bores which have the same tangential direction component, while the other bores are covered and are therefore ineffective.
  • the carriage 61 only with bores for a tangential direction component, so that this carriage is only suitable for heads with one winding direction.
  • either the slide itself or an insert that contains the oblique holes can be replaced.
  • the openings 80 in the sleeve half 53 are replaced by a continuous elongated hole (not shown separately), since it is no longer necessary to cover oblique bores.
  • a variant is the installation of the oblique holes analogous to the first embodiment in such a way that they are arranged in a zigzag shape on the outlet side and the position of the elongated hole in the sleeve half 53 is adjustable.
  • a further slide can be provided in addition to the described movable slide, which can also be arranged in a fixed position in the lowest position.
  • This fixed slide can be simplified. In particular, it does not require any devices in order to be able to be positioned in different grid positions. Rather, it can be fixed to the cuff half 53 from the outset so as to be displaceable.
  • the winding machines can be used for cops with dimensions that differ considerably from one another, without corresponding components having to be exchanged.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP92115042A 1991-09-21 1992-09-03 Chambre de soufflage pour une cannette Expired - Lifetime EP0534186B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131482A DE4131482A1 (de) 1991-09-21 1991-09-21 Blaskammer fuer einen auf einem einzelkopstraeger in der abspulstellung einer spulstelle eines spulautomaten stehenden kops
DE4131482 1991-09-21

Publications (2)

Publication Number Publication Date
EP0534186A1 true EP0534186A1 (fr) 1993-03-31
EP0534186B1 EP0534186B1 (fr) 1995-03-01

Family

ID=6441167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115042A Expired - Lifetime EP0534186B1 (fr) 1991-09-21 1992-09-03 Chambre de soufflage pour une cannette

Country Status (4)

Country Link
US (1) US5282581A (fr)
EP (1) EP0534186B1 (fr)
JP (1) JPH05193827A (fr)
DE (2) DE4131482A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241992A1 (de) * 1992-12-12 1994-06-16 Schlafhorst & Co W Verfahren und Vorrichtung zum Ansaugen eines Fadenanfangs einer Ablaufspule
US5590845A (en) * 1993-09-24 1997-01-07 Murata Kikai Kabushiki Kaisha Yarn end finding apparatus and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843553A1 (de) * 1988-12-23 1990-07-05 Schlafhorst & Co W Garnlieferaggregat eines spulautomaten
EP0417618A2 (fr) * 1989-09-15 1991-03-20 Zinser Textilmaschinen GmbH Procédé et dispositif pour la séparation pneumatique d'une extrémité d'un fil cassé de l'enroulement d'une bobine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236464A (en) * 1962-02-03 1966-02-22 Reiners Walter Device for removing a starting length of yarn from a textile coil
US3637148A (en) * 1966-11-30 1972-01-25 Reiners Walter Device for pneumatically removing the tip or foot bunch from supply coils
DE2423493C2 (de) * 1974-05-15 1983-03-24 W. Schlafhorst & Co, 4050 Mönchengladbach Vorrichtung zum pneumatischen Ablösen des Fadenfangs an rotierenden Textilspulen
JP2541841B2 (ja) * 1988-06-08 1996-10-09 村田機械株式会社 糸端の口出し装置
DE3821343A1 (de) * 1988-06-24 1989-12-28 Schlafhorst & Co W Verfahren und einrichtung zum pneumatischen erfassen und ueberkopfabziehen des fadenendes eines kopses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843553A1 (de) * 1988-12-23 1990-07-05 Schlafhorst & Co W Garnlieferaggregat eines spulautomaten
EP0417618A2 (fr) * 1989-09-15 1991-03-20 Zinser Textilmaschinen GmbH Procédé et dispositif pour la séparation pneumatique d'une extrémité d'un fil cassé de l'enroulement d'une bobine

Also Published As

Publication number Publication date
US5282581A (en) 1994-02-01
DE59201528D1 (de) 1995-04-06
JPH05193827A (ja) 1993-08-03
DE4131482A1 (de) 1993-03-25
EP0534186B1 (fr) 1995-03-01

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