EP0311781B2 - Dispositif pour la mise en marche de cantres - Google Patents

Dispositif pour la mise en marche de cantres Download PDF

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Publication number
EP0311781B2
EP0311781B2 EP88114274A EP88114274A EP0311781B2 EP 0311781 B2 EP0311781 B2 EP 0311781B2 EP 88114274 A EP88114274 A EP 88114274A EP 88114274 A EP88114274 A EP 88114274A EP 0311781 B2 EP0311781 B2 EP 0311781B2
Authority
EP
European Patent Office
Prior art keywords
yarn
thread
bolt
clamping
clamp
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
EP88114274A
Other languages
German (de)
English (en)
Other versions
EP0311781B1 (fr
EP0311781A1 (fr
Inventor
Günther Buttermann
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.)
Hacoba Textilmaschinen GmbH and Co KG
Original Assignee
Hacoba Textilmaschinen GmbH and Co KG
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
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Application filed by Hacoba Textilmaschinen GmbH and Co KG filed Critical Hacoba Textilmaschinen GmbH and Co KG
Publication of EP0311781A1 publication Critical patent/EP0311781A1/fr
Application granted granted Critical
Publication of EP0311781B1 publication Critical patent/EP0311781B1/fr
Publication of EP0311781B2 publication Critical patent/EP0311781B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/22—Tensioning devices
    • D02H13/24—Tensioning devices for individual threads
    • 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
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/02—Stop motions
    • D02H13/04—Stop motions responsive to breakage, slackness, or excessive tension of threads, with detectors for individual threads or small groups of threads
    • 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 device with the features of the preamble of claim 1.
  • the known thread clamp has a horizontal clamping jaw that presses a horizontal thread against the underside of a plate-shaped horizontal abutment. This is done by an even if horizontally acting adjusting rod, which acts on one end of a leaf spring, the other end of which is fixed when clamping or braking the thread on a clamping piece which is immovable in the adjusting direction.
  • the jaw of the thread clamp is attached approximately to the middle of this leaf spring.
  • the clamping force also has an oblique orientation to the abutment, which results in complications during machine start-up.
  • a tendency to untwist the thread can result from a corresponding impact, which is associated with corresponding thread displacements or displacements at the thread braking point and prevents the desired correct influence on the thread braking.
  • the invention is therefore based on the object of improving a creel of the type mentioned with regard to its thread clamps in such a way that the threads can be braked properly with all possible thread configurations.
  • the clamping force is only applied perpendicular to the abutment surface, so that the thread run or the clamping point within the thread clamp cannot be changed by influencing variables from the thread clamp itself.
  • the clamping jaw acted upon by the control spring is held by a movable bolt arranged perpendicular to the abutment surface and to the thread.
  • the bolt can be given exactly the desired direction of movement of the clamping jaw acted upon by the control spring, and additional guide measures are unnecessary.
  • the bolt is axially displaceably mounted in a clamp housing having the abutment surface and penetrates the movable jaw without radial play, the end of the jaw on the back of the jaw engaging the movable jaw with movable axial play, so that the desired clamping force control and a defined clamping behavior can be achieved on the one hand.
  • the axial play between the jaw and the end of the bolt is achieved in that the jaw has projecting actuating tabs on the back with slots parallel to the bolt into which a transverse pin of the bolt is inserted takes hold.
  • control spring acting on the clamping jaw surrounds the bolt and is supported at the other end on the cross pin of the bolt.
  • the clamping jaw is arranged to move to a limited extent from its thread clamping position against the control spring acting on it.
  • the control spring with a flat characteristic, it is possible to clamp threads of different thicknesses with the thread clamp without influencing the clamping and control characteristics of the thread clamp. Construction tolerances of the thread clamp can also be controlled perfectly.
  • the bolt is acted upon by a clamping spring which is supported in the terminal housing and which holds the bolt when the clamping jaw is in the clamping position while overcoming the force of the control spring of my contact position on the housing.
  • the pin has a defined rest position in the housing, which also ensures that the force of the control spring in the clamping position of the thread clamp has a single defined value.
  • the thread clamp has a thread guide element holding the thread above the bolt. An abrasion of the thread on the bolt and largely also on the clamp parts is thus avoided, so that the ease of movement of the bolt and the control of the thread clamp cannot be unintentionally influenced by thread abrasion or stiffness of the bolt.
  • the abutment forming the abutment surface there is a projection which limits the vertical thread deflection upwards.
  • the projection also has a substantially vertical thread guiding edge which delimits thread deflections directed transversely thereto. Due to the above configurations of the thread clamp, the thread is forced into its clamping area. The thread is not able to make changes in position in the area of the thread clamp in such a way that the elements causing the control can be influenced by the dynamics contained in the thread.
  • the height of the thread clamping point is practically fixed relative to the clamping jaw, so that, for example, its tolerance-related tilting play around a horizontal axis has no influence on the clamping or control of the thread clamping.
  • the above-described guiding of the thread in the clamping area of the thread clamp or the fixing of the thread running point in the thread clamp ensures that the guard needle is not exposed to unwanted dynamic influences resulting from the thread path.
  • the guard needle need not be used to limit vertical thread deflections.
  • the needle end is advantageously arranged above a projection that limits the vertical thread deflection upward and on the housing side next to the insertion slot, the thread deflection upward limiting projection reliably preventing the thread from coming out of the height range of the guarding needle that enables a monitoring.
  • FIG. 1 is one of many for influencing the running of a thread 4 from a winding unit 1 provided with a bobbin 22 in the direction of arrow 23 to a winding machine (not shown).
  • This winding machine winds up all threads of the creel 4, each of which passes through a device deflected on a guard needle 2.
  • An essential part of this device which is used in particular for so-called V-gates, the thread speeds of which are comparatively high, are a thread clamp 3 and a thread monitor with a guard needle 2.
  • the continuous thread 4 loops around the guard needle 2 and keeps it in one because of its thread tension Position in which a signal transmitter 24 of the thread monitor which interacts with it and is outlined in FIG. 4 does not give a signal.
  • the device shown in the figures has a clamp housing 11 which receives or supports the thread clamp 3 and the thread monitor.
  • the thread clamp 3 consists essentially of an abutment 5 and a jaw 6, which is relatively movable to the abutment 5.
  • These components are attached to a housing body 25 which is closed all round and has an installation opening 26 on the needle side for the installation of parts of the thread clamp 3 and the thread monitor, which is closed by a cover plate 27 which is fastened to the housing body 25 with fastening screws 28.
  • the cover plate 27 also has a protruding sheet metal hook 37 according to FIG. 3 and at least parts of an insertion slot 20 with a diamond-shaped recess 38.
  • the sheet metal hook 37 is at its free end according to FIG. 1 via a wire bracket 40 with the terminal housing 11 or its connected to the cover plate 27 opposite the housing side, the bracket 40 forming a thread guide element 17, which does not allow the thread 4 to lower deeper.
  • the cover plate 27 supports the guard needle 2 with a pivot pin 29 which is inserted into a sleeve piece 31 arranged on the other side of the cover plate 27 and engages with a free end in a molded connection piece 32 of the housing body 25.
  • a contact finger 33 is attached to the sleeve piece 31 and ensures that the signal generator 24 emits a signal when it comes to rest against the signal generator 24 provided with two contact tabs 35 from its position shown in FIGS. 3, 4. This is the case when the watchdog needle 2 tilts clockwise from the position shown in FIG. 3, which it does because of its center of gravity located to the right of the axle pin 29 as a result of the action of gravity. In the tilted position, the guard needle 2 does not protrude into the insertion slot 20 for the thread 4 explained below.
  • the guard pin 2 is inserted with its lower angled end into a bore in the axle pin 29 and fastened to it with a grub screw, not shown, which is actuated with an internal polygonal recess 30 shown in FIG. 6.
  • the thread deflecting needle section runs approximately parallel to the front surface 11 'of the terminal housing 11.
  • the upper end 21 of the guard needle 2 is arranged approximately parallel to the sheet, is bent back towards the bottom 36 of the body 25, its inclination towards the thread-guiding section of the needle 2 being opposite to the inclination of the lower end of the needle 2.
  • the abutment 5 is a substantially L-shaped sheet metal part in cross section, which is installed in a correspondingly shaped recess in the housing body 25 and lies flush with the outer surfaces thereof. 4 and with fastening screws 39.
  • the abutment 5 has an abutment surface 9 facing the thread 4.
  • the abutment 5 has a bore through which a bolt 10 passes, essentially without radial play and vertically to the abutment surface 9.
  • the jaw 6 is a sheet metal part which is fixed to the bolt 10.
  • the clamping jaw 5 has actuating tabs 13 projecting on the rear side, which are parallel to one another and lie opposite one another at the same height and have slots 14 of equal length.
  • the ends of a cross pin 15 of the bolt end 12 engage in these slots and the bolt 10 is axially displaceable to such an extent that the clamping jaw 5 can be lifted off the abutment surface 9 if the bolt 10 is subjected to a correspondingly large axial load.
  • the clamping jaw 6 according to FIG. 1.5 has an approximately U-shaped cross-sectional configuration and has an angled portion at its upper end 6 'which facilitates thread insertion.
  • the bolt 10 is assembled with the clamping jaw 6 in such a way that the cross pin 15 does not press directly on the jaw 6. Rather, this is held on the abutment 5 by spring force.
  • This spring force is generated by a control spring 7.
  • a clamping spring 16 is arranged surrounding the bolt 10, which is supported on the one hand on this terminal housing 11 and on the other hand on a further transverse pin 42 of the bolt 10, with which the bolt 10 is pushed to the left in FIG. 5 on the housing 11 becomes.
  • the clamping spring 16 is stronger than the control spring 7 surrounding the bolt 10 between its cross pin 15 and the clamping jaw 6, which counteracts the clamping spring 16 and is unable to influence the position of the bolt 10.
  • the abutment 5 has a Z-shaped projection 19 which projects into the diamond-shaped recess 38 of the cover plate 27.
  • this projection 19 has an edge section 19 'which delimits vertical thread deflections at the top.
  • the thread 4 is secured in connection with the thread guide element 17 according to FIG. 2 against shifting in height, so that the thread clamping point is practically immovable vertically, which contributes to the constancy of the braking effect on the thread 4.
  • the projection 19 also has a thread guide edge 18 which limits horizontally directed thread deflections, the horizontal clearance required for the thread 4 due to the movement of the guard needle 2 not being cut.
  • the projection 19 is shaped such that it completes the insertion slot 20 in the region of the recess 38 with the cover plate 27 so that the thread 4 is fed comparatively easily from above into the thread runner when the device is inserted, the bracket 40 above the Thread clamp 3 in connection with the shape of the housing 11 ensures a horizontal extension of the insertion slot 20.
  • the guard needle 2 is designed in particular with its upper end 21 so that it is not acted upon when the thread 4 is inserted until it has reached the thread clamping parts determined by the section 19 'of the projection 19 and the thread guide element 17.
  • the thread guide 17 also ensures that the thread 4 is held above the bolt 10, so that the latter cannot produce thread abrasion.
  • the assembly of the device with the gate takes place via fastening screws 43 which are screwed into fastening tabs 44 of the housing 11 and thereby fix this housing 11 to a U-shaped vertical frame carrier 45 of the gate.
  • a rack support 45 there is an adjusting device 8 in the form of an adjusting rod and all rack rods can be acted upon in parallel, so that a corresponding joint action on all thread clamps is possible.
  • a control plate 46 which has a control surface 47, is fastened to the adjusting device 8 for each thread clamp 3. With this control surface 47, the bolt 10 can be correspondingly horizontally displaced when the height of the adjusting device or rod 8 is adjusted, and as a result compress the clamping spring 16 and relieve the control spring 7.
  • 7a shows the clamping position of the thread clamp 3, in which the clamping jaw 6 presses on the thread 4 under the action of the springs 7, 16 and keeps it tensioned so that it cannot slip any further.
  • 7b shows a deflection of the pin 10, in which the clamping spring 16 is partially compressed and the spring 7 has been relieved of the adjustment of the pin 10 accordingly.
  • the bolt 10 reaches such a position through the control with the adjusting device 8 during the start-up of the winding machine pulling off all the threads 4 already during the first running meters of the thread family.
  • 7b shows the state of the thread brake 3 shortly before the clamping jaw 6 is lifted off from the abutment 5.
  • Thread monitoring takes place from the moment when a thread 4 reaches a thread tension on the basis of which the response threshold of the thread monitor is reached.
  • 7c shows the clamping jaw 6 lifted off the abutment 5, the displacement being achieved by the cross pin 15 acting on the actuating tab 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Looms (AREA)

Claims (10)

1. Dispositif pour la mise en marche de cantres pour ourdissoirs, dans lesquels, à chacun des postes de bobines (1), disposés en rangées et en ligne, sont associés un casse-fil qui, avec une aiguille de casse-fil (2), opère un changement de direction du fil, et un pince-fil (3) qui peut pincer un fil (4) entre une surface de butée (9) et un mors de serrage (6) à mouvement limité qui coopère avec celle-ci et se trouve sous l'influence d'un ressort de commande (7) dont la force de serrage peut, sur la plage d'action de serrage existant entre la position de pincement et la position ouverte, pendant la mise en marche de la machine, être réglée par un dispositif de positionnement (8) qui intervient collectivement sur tous les pince- fils (3) caractérisé en ce que le mors de serrage (6) est conçu pour, lors du réglage de la force de serrage, être exempt de tout mouvement relatif dans la direction de l'extension longitudinale de la surface de butée (9) et sa force de serrage est exclusivement orientée perpendiculairement à la surface de butée (9), et en ce que la force de serrage du ressort de commande (7) est apte à être dosée à l'aide d'une broche (10) qui peut être déplacée par le dispositif de positionnement (8) perpendiculairement à la surface de butée (9), et qui soutient le ressort de commande (7) et est en prise, mobile axialement, au niveau du mors de serrage (6).
2. Dispositif selon la revendication 1, caractérisé par le fait que la broche (10) est montée avec liberté de coulissement axial, dans un carter de serrage (11) sur lequel est formée la surface de butée (9) et traverse, radicalement sans jeu, le mors de serrage mobile (6).
3. Dispositif selon la revendication 2, caractérisé par le fait que le mors de serrage (6) comporte des oreilles de manoeuvre (13) saillant sur sa surface arrière et présentant des fentes (14), parallèles à la broche, dans lesquelles s'engage une cheville transversale (15) de la broche.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que le ressort de commande (7) qui intervient sur le mors de serrage (6) entoure la broche (10) et, à l'autre extrémité, s'appuie sur la cheville transversale (15) de la broche (10).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que la broche (10) est sollicitée par un ressort de serrage (16) qui s'appuie dans le carter de serrage (11) et qui, lorsque le mors de serrage (6) se trouve en position de pincement, maintient la broche (10) en position d'appui dans le carter (11) en surmontant la force du ressort de commande (7).
6. Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que le pince-fil (3) présente un élément (17) de guidage du fil qui maintient le fil (4) au-dessus de la broche (10).
7. Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait que sur la butée (5), qui forme la surface de butée (9), existe une saillie (19) qui limite limite vers le haut la déviation verticale du fil.
8. Dispositif selon la revendication 7, caractérisé par le fait que la saillie (19) possède également une arête (18) de guidage du fil, qui limite les déviations sensiblement verticales, dirigées transversalement à cette saillie, du fil.
9. Dispositif pour la mise en marche de cantres pour ourdissoirs, dans lesquels, à chacun des postes de bobines, disposés en rangées et en lignes, sont associés respectivement un casse-fil qui, avec une aiguille de casse-fil, opère un changement de direction du fil et, respectivement, un pince-fil, en particulier selon l'une des revendications 1 à 8, avec une fente d'insertion, sensiblement verticale, formée par des parties du carter de serrage, du fil à insérer dans le pince-fil, caractérisé par le fait que l'extrémité supérieure (21) de l'aiguille de casse-fil (2), dans toutes les positions possibles de l'aiguille, est disposée de façon à ne pas recouvrir la fente.
10. Dispositif selon la revendication 9, caractérisé par le fait que l'extrémité (21) de l'aiguille est disposée au-dessus d'une saillie (19) qui limite vers le haut la déviation verticale du fil et, côté carter, à proximité de la fente d'insertion (20).
EP88114274A 1987-10-13 1988-09-01 Dispositif pour la mise en marche de cantres Expired - Lifetime EP0311781B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873734518 DE3734518A1 (de) 1987-10-13 1987-10-13 Vorrichtung fuer die anlaufsteuerung von spulengattern
DE3734518 1987-10-13

Publications (3)

Publication Number Publication Date
EP0311781A1 EP0311781A1 (fr) 1989-04-19
EP0311781B1 EP0311781B1 (fr) 1990-11-14
EP0311781B2 true EP0311781B2 (fr) 1994-12-14

Family

ID=6338178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114274A Expired - Lifetime EP0311781B2 (fr) 1987-10-13 1988-09-01 Dispositif pour la mise en marche de cantres

Country Status (4)

Country Link
US (1) US5040742A (fr)
EP (1) EP0311781B2 (fr)
DE (2) DE3734518A1 (fr)
ES (1) ES2019129T5 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683193A5 (de) * 1991-04-24 1994-01-31 Benninger Ag Maschf Vorrichtung zur Ueberwachung des Fadenlaufs an einem Spulengatter.
DE29608167U1 (de) * 1996-05-06 1997-09-18 Sucker-Müller-Hacoba GmbH & Co., 41063 Mönchengladbach Zentralverstelleinrichtung für Fadenklemmen von Spulengattern

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605373A (en) * 1924-11-28 1926-11-02 Barber Colman Co Creel
US2325974A (en) * 1943-05-10 1943-08-03 Peter C Pasquerello Creel apparatus
US2723088A (en) * 1952-09-26 1955-11-08 Gellman Mfg Co Thread tensioning device
CH555905A (de) * 1973-01-17 1974-11-15 Benninger Ag Maschf Fadenfuehrungs- und ueberwachungsvorrichtung an einem spulengatter.
JPS5813659B2 (ja) * 1977-03-26 1983-03-15 日産自動車株式会社 織機の緯糸把持装置
DE3100880C2 (de) * 1981-01-14 1983-08-18 Maschinenfabrik Benninger AG, 9240 Uzwil Spulengatter für Zettel- oder Schärmaschinen
NL8301580A (nl) 1983-05-04 1984-12-03 Seumeren Agenturen B V Van Hefwerktuig.
CH663401A5 (de) * 1984-05-03 1987-12-15 Benninger Ag Maschf Fadenspannvorrichtung an einem spulengatter.
DE3436714A1 (de) * 1984-10-06 1986-04-17 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Spulengatter fuer zettel- oder schaermaschine und verfahren zur steuerung der fadenklemmen eines spulengatters
US4598184A (en) 1985-04-16 1986-07-01 West Point Foundry And Machine Co. Thread tension monitoring and clamping apparatus
US4646989A (en) * 1985-05-22 1987-03-03 Marlin Van Wilson Tension control and yarn handling system for "V" type creels
DE3529369C1 (de) * 1985-08-16 1986-11-27 Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern Naehmaschine mit einer Einrichtung zur Spannung des Nadelfadens
DE3629928A1 (de) * 1986-09-03 1988-03-10 Norddeutsche Faserwerke Gmbh Schaeranlage und tellerfadenbremse

Also Published As

Publication number Publication date
EP0311781B1 (fr) 1990-11-14
DE3734518A1 (de) 1989-04-27
EP0311781A1 (fr) 1989-04-19
ES2019129T5 (es) 1995-08-16
US5040742A (en) 1991-08-20
ES2019129B3 (es) 1991-06-01
DE3861087D1 (de) 1990-12-20

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