EP0298176B1 - Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen - Google Patents

Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen Download PDF

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Publication number
EP0298176B1
EP0298176B1 EP87401561A EP87401561A EP0298176B1 EP 0298176 B1 EP0298176 B1 EP 0298176B1 EP 87401561 A EP87401561 A EP 87401561A EP 87401561 A EP87401561 A EP 87401561A EP 0298176 B1 EP0298176 B1 EP 0298176B1
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EP
European Patent Office
Prior art keywords
fact
distinguished
spreader
feeders
arms
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
EP87401561A
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English (en)
French (fr)
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EP0298176A1 (de
Inventor
Jean-Michel Auffredou
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Auffredou Jean-Michel
TECHNOMATIC INDUSTRIES Ste
Original Assignee
Technomatic Industries Ste
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Priority to FR868600812A priority Critical patent/FR2592897B1/fr
Application filed by Technomatic Industries Ste filed Critical Technomatic Industries Ste
Priority to DE3783456T priority patent/DE3783456T2/de
Priority to AT87401561T priority patent/ATE84331T1/de
Priority to EP87401561A priority patent/EP0298176B1/de
Publication of EP0298176A1 publication Critical patent/EP0298176A1/de
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Publication of EP0298176B1 publication Critical patent/EP0298176B1/de
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C5/00—Shaping or stretching of tubular fabrics upon cores or internal frames

Definitions

  • the present invention relates to an adjustable device for spreading the tubular knitted fabric, used at the inlet or at the outlet of the tubular knit processing machines, possibly comprising a differential control of the suppliers, such as, for example, calenders, driers, expressers , etc ...
  • the internal spreader adjustment devices for tubular knitting commonly called wideners, currently existing in the textile industry, have many embodiments, such as: pneumatic cylinder pressurized through the knitting, gas cylinder constantly under pressure , deformable parallelogram by means of a spring, a gas spring or a counterweight.
  • the object of the present invention is to eliminate all these drawbacks by allowing the operator to adjust the width of the expander over the entire range of use of the machine, without having to stop production, by using a single widener and, also, to allow this operator to correct the right mesh, by increasing or decreasing the speed of a supplier compared to another supplier, by means of a simple manipulator, or to automatically enslave the system through an appropriate detection device.
  • the various embodiments of internal spreaders for tubular knitting prior to the present invention, are characterized by the fact that the branches of the expander are kept apart by an internal mechanical device, which holds or pushes the two branches outwards. of the enlarger.
  • Supplier training is generally provided by the same drive shaft; therefore, the tubular knit is driven on either side of the expander, always at the same linear speed.
  • the present invention is characterized by the fact that the branches of the expander are attracted towards the outside, through the knitted fabric, by means of a strong magnetic field, generated by a magnet, or an electromagnet, which plates the two branches of the expander against the suppliers of the machine, and also by the fact that the increase or decrease in the speed of one supplier compared to another supplier is obtained by means of a differential controlled by a servomotor , sandwiched between the two supplier control trees.
  • Figure 1 shows an embodiment of the expander, in front view.
  • Figure 2 shows the detail of the shape of the rollers of the expander and suppliers.
  • FIG. 3 represents a joint of the mechanical member, which uses the two branches of the expander.
  • Figure 4 shows a sectional view of the expander, the supply rollers, and the mechanical member which connects the two branches.
  • Figure 5 is a sectional view of an assembly of the supplier mechanism.
  • Figure 6 is a sectional view of a branch of the expander.
  • Figure 7 shows how the magnet is attached to the supplier.
  • Figure 8 shows the translation mechanism of the two suppliers in front view.
  • FIG. 9 is a different embodiment of the invention, by replacing the permanent magnet with an electromagnet of identical power.
  • Figure 10 is a different arrangement of the embodiment described below.
  • Figure 11 shows a sectional view of a supplier device, left and right, with a differential which connects the two semi-axes of the suppliers' drive.
  • FIG. 12 represents a front view of the two left and right supplier assemblies, as well as the schematic representation of the detection device.
  • Figure 13 shows a front view of a different embodiment of the connecting member of the 2 branches of the expander.
  • Figure 14 is a sectional view of the connecting member.
  • the enlarger of the invention is intended to be placed between the four supply rollers 1, 2, 3, 4, so as to widen the knitted fabric 5, which is shown diagrammatically at the bottom of FIG. 1.
  • the branch 6 of the expander, thinned at one end, is produced by means of two sides 8 and 9.
  • An endless belt 14, of round or arbitrary shape connects the two pulleys, like a transmission belt, in order to facilitate the transport of the knitted fabric on the branch of the expander.
  • rollers 15, 16, 17, 18, of biconical shape are made of flexible materials, of elastomer type, of approximately 30 shores of hardness.
  • the interior of the lower part of the branch 6 is lined with two idle rollers 23 and 24, rotating on the axes 66 and 68, connecting the sides 8 and 9, as spacers.
  • a magnetic steel plate 25 is fixed inside the branch 6, between the two rollers 16 and 17.
  • the two branches 6 and 7 are interconnected by means of a mechanical member 67, composed of several articulated and deformable parallelograms.
  • This mechanical member consists of: six external levers 26, six internal levers 27, four external half-levers 28 and four internal half-levers 29.
  • the interior levers 27 are articulated with respect to the exterior levers 26, by means of a bush 30, integral with the interior levers 27, swiveling on an axis 31, itself fixed by the screws 32 on the external levers 26. Between the internal 27 and external 26 levers is inserted a friction washer 33.
  • the two supplier rollers 35 and 36 (FIG. 5), of particular shape, as shown in FIG. 2, keyed respectively on the axes 37 and 38, rotate in the bearings 39 to 42, integral with the structure 43 of the mechanism.
  • the suppliers 35 and 36 are rotated by means of a variable speed motor 71, fixed to the structure 43, by means of the toothed pulleys 44 to 47, and of the two toothed belts 48 and 49.
  • a permanent magnet 50 of high power, is fixed to the structure 43 of the supplier mechanism, by means of a spacer 51 ( Figure 7).
  • the spacer 51 can be replaced by an adjustment device (not shown), making it possible to increase or decrease the air gap "e" (FIG. 7).
  • a variant of the invention consists in replacing the permanent magnet 50, FIG. 1, by an electromagnet 52, the magnetic flux of which can be varied as desired and, therefore, modify the value of the force of attraction "ft".
  • FIG. 10 shows an embodiment of the invention different from that described above.
  • Two magnets 53 and 54 exert a form of attraction on the branch 55 of the expander which, therefore, is pressed against the single supply roller 56.
  • Figures 11 and 12 show a variant of the invention which is essentially characterized by a differential.
  • the device is essentially characterized by a differential 85, the two output shafts 86 and 87 of which are integral with the two half-shafts 88 and 89 for driving the suppliers.
  • the differential is a mechanical organ, well known in the mechanical industry, no description of operation will be made in this presentation on this subject.
  • the differential drive is ensured by means of a servomotor 90 with two directions of rotation.
  • the supplier drive shaft 89 pivots in the bearings 91 and 92, fixed on the right housing 93.
  • a bevel gear 94 which meshes with another bevel gear 95, integral with an axis 96, turning itself in a bearing 94, which is fixed on the housing 93.
  • a supply roller 95 At the other end of the axis 96 is keyed a supply roller 95.
  • a gear motor 96 is keyed to the left end of the shaft 88 and secured to the frame of the machine, which is not shown.
  • Figures 13 and 14 show a different embodiment of the mechanical member 67, the latter being shown in the maximum retraction position, which makes it possible to reduce the expander to the minimum. It consists of two angled levers 71 and 72 and two straight levers 73 and 74, articulated at their ends by means of axes 75, 76, 77, 78, 79 and elements 80, 81, 82, 83, 84.
  • FIG. 8 mounts the two supplier assemblies 56 and 57, guided in translation by means of sliding rings 59, integral with the structure 43 and sliding on the two transverse bars 60 and 61, fixed themselves on the frame (not shown) of the processing machine.
  • the left end of the screw 62 is connected to the frame (not shown), by means of a bearing 63; the right end of the screw is secured to a motor 64, fixed to the frame, this motor having two directions of rotation.
  • the expander and differential control described above work as follows: The expander being in place on the machine, under the effect of the forces of attraction (ft) exerted on the plates 25, by means of a magnetic field generated by the magnets 50, or the electromagnets 52, the branches of the expander are pressed onto the supplier rollers 1 to 4. As a result, the positioning rollers 15 to 18 are fitted in the left suppliers 1 and 2 on the one hand, and the rollers 19 to 22 in the suppliers 3 and 4 on the other hand.
  • the supply rollers 1 to 4 carry in their center a groove 69 in order to avoid the markings of the merchant fold 70.
  • the width adjustment of the expander, when the machine is stopped or during operation, is carried out by means of the electric motor 64, started by the operator by means of a simple electric button.
  • the adjustment can possibly be carried out manually by turning the screw 62 by hand.
  • the starting of the motor drives the screw 62 in rotation and causes the displacement, in the opposite direction, of the suppliers 56 and 57, owing to the fact that the screw 62 is threaded to the left and to the right for half.
  • branches 6 and 7 of the expander By moving inward or outward, depending on whether one wants to decrease or increase the width of the expander, the suppliers carry with them, in their movement, the branches 6 and 7 of the expander. These branches being, according to one of the characteristics of the invention, kept pressed against the rollers 1 to 4, by means of a magnetic force exerted on the branches 6 and 7.
  • the force of attraction of the branches 6 and 7 against the supply rollers 1 to 4 is constant whatever the width of adjustment, and this throughout the range of the machine.
  • the mechanical member 67 (FIG. 4) is deformed by means of the joints 34 and 65, increasing or decreasing in height, depending on the direction of movement of the branches 6 and 7.
  • the function of the member 67 is only to prevent the branches from pivoting on themselves.
  • the gear motor rotates the half-shaft 88, which itself transmits the rotational movement to the half-shaft 89, at a strictly identical speed, via the two shafts. input 86 and output 87 of the differential, it being understood that the servomotor is stopped.
  • the servomotor 90 When the knitting scrolls, if the operator finds that the right stitch is defective, he rotates the servomotor 90 by means of a simple action on a 3-position manipulator, which has the effect of rotating l input shaft 101 of the differential. Depending on the direction of rotation of the shaft 101, the output shaft 87 of the differential rotates slightly slower, or slightly faster than the input shaft 88 of the differential. This has the effect of straightening the right mesh in the right direction, due to the very slight difference in speed, more or less, of all the suppliers on the left.
  • Another embodiment of the invention allows, using an appropriate detection device, rep. lo2 of Figure 12, to directly and automatically control the rotation in both directions of the servomotor 90, which, of course, allows to correct the right mesh automatically.
  • the spreader for spreading the tubular knit and the differential control of the suppliers can be used at the entry or exit of all industrial machines for processing the tubular knit, where it is necessary to spread and control the width of the knitted fabric laid flat, and mainly on the continuous tubular knitting processing lines.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Knitting Machines (AREA)
  • Materials For Medical Uses (AREA)

Claims (16)

  1. Breithalter für das Ausbreiten von Rundstrick-und-Rundwirkware, mit Differential-System für die Vorschubrollen (1-4), für Anwendung am Eingang oder am Ausgang einer Maschine für die Behandlung von Rundstrick-und-Rundwirkware, bestehend aus zwei Arme (6 und 7), alle beide mit Positionsrollen ausgestattet, Positionsrollen die mit von zwei Halbwelle (88 und 89) mit einer Drehbewegung angetriebenen Vorschubrollen (1-4) mitarbeiten, diese zwei Arme (6,7) des Breithalters die eine mit die andere mit einem streckbaren mechanischen Element (67) verbunden sind, Breithalter dadurch gekennzeichnet, dass die Arme (6,7) nicht vom Innern abgestossen sind aber nach aussen durch die Schlauchware, mit Hilfe von einem durch Magneten (50) erzeugneten Magnetfeld, angezogen sind und dadurch, dass die zwei Halbwelle (88 und 89) der Vorschubrollen die eine mit die andere mit einem durch einem Servomotor angetriebenen Differential-system verbunden sind, was erlaubt die Geschwindigkeit einer Vorschubrolle im Verhältnis zu der anderen Vorschubrolle zu erhöhen oder herabzusetzen, um eine absolut horizontale Ausrichtung der Maschenware zu erzielen.
  2. Breithalter nach Anspruch Nr. 1, dadurch gekennzeichnet dass das Magnetfeld durch Elektromagneten (52) zum Erzatz der Magneten (50) ausgeübt werden kann.
  3. Breithalter nach Ansprüche Nr. 1 und Nr. 2, dadurch gekennzeichnet dass die Magneten (50) zwischen die Vorschubrollen (1 und 2) nach links und nach rechts (3 und 4) aufgestellt sind.
  4. Breithalter nach Ansprüche Nr.1 bis Nr. 3, dadurch gekennzeichnet dass das Magnetfeld sich auf die mit der Armen (6 und 7) verbundenen Metallplatten (25) ausbübt.
  5. Breithalter nach Ansprüche Nr. 1, Nr. 2 und Nr. 4, dadurch gekennzeichnet dass die Magneten (53 und 54) gemäss einer von der Erfindung verschiedenen Gestaltung zu beiden Seiten einer einzigen Vorschubrolle (56) aufgestellt sind.
  6. Breithalter nach Anspruch Nr. 1, dadurch gekennzeichnet dass die Positionsrollen (15 bis 22) eine bikonische Gestaltung haben und aus flexibelem Material, nach Elastomere Muster, mit einer 30 shores Härte hergestellt sind.
  7. Breithalter nach Anspruch Nr. 1, dadurch gekennzeichnet das die Vorschubrollen in ihrem Zentrum eine sonderförmige Rille tragen (Abbildung Nr. 2).
  8. Breithalter nach Anspruch Nr. 1, dadurch gekennzeichnet dass das mechanischen Element, dass die Breithalter Armen (6 und 7) verbindet, aus mehrere flexibelen Parallelogrammen besteht.
  9. Breithalter, nach Ansprüche Nr. 1 und Nr. 8, dadurch gekennzeichnet dass die Parallelogrammen mit den zwei Armen (6 und 7) durch zwei Gelenke (34 und 35) verbunden sind.
  10. Breithalter nach Anspruch Nr. 2, dadurch gekennzeichnet dass der von den Breithalterrollen (15 bis 22) auf die Vorschubrollen (1 bis 4) ausgeübten Druck durch die Aenderung der Anziehungskraft durch die Schwankung des magnetischen Fluss der Elektromagneten (52) eingestellt werden kann.
  11. Breithalter nach einem von den vorigen Ansprüche, dadurch gekennzeichnet dass die Breithalterarmen (6 und 7) den Rollen (56 und 57) in ihrem Umstellen folgen, wegen der von den mit der Struktur (43) der Rollen (56 und 57) verbundenen Magneten (50) oder Elektromagneten (52), durch die Metallplatten (25) auf die Armen (6,7) ausgeübten Kraft (ft).
  12. Breithalter nach Anspruch Nr. 1, dadurch gekennzeichnet, dass das mechanische Element (67), das die Breithalterarmen (6 und 7) verbundet, einer von der Erfindung verschiedenen Gestaltung gemäss, aus zwei Kniehebel (71 und 72) und zwei Rechthebel (73 und 74), durch Achsen (75, 76,77, 78, 79) und mechanischen Elementen (80, 81, 82, 83, 84) an ihren Enden beweglich verbunden, besteht.
  13. Breithalter nach Anspruch Nr. 1, dadurch gekennzeichnet, dass die Welle, die die zwei Rollen antreibt, mit einem durch einem Servomotor angetriebenen Differential-System verbunden ist.
  14. Breithalter nach Ansprüche Nr. 1 und Nr. 13, dadurch gekennzeichnet, dass der Servomotor durch einem einfachen Knopfdruck handbetrieben werden kann.
  15. Breithalter nach Ansprüche N. 1 und Nr. 13, dadurch gekennzeichnet, dass der Servomotor (90) durch einem für die horizontale Ausrichtung der Maschenware passenden Detektor (102) steuern werden kann und aus diesem Grund kann die Maschenware automatisch, ohne Handeingriff, ausgerichten werden.
  16. Differentialssteurung, nach Ansprüche Nr. 1, Nr. 13 und Nr. 15, dadurch gekennzeichnet, dass die Differentialssteuerung einer Rolle im verhältnis zu einer anderen Rolle, auch eine Gruppe von Rollen im verhältnis zu einer anderen Gruppen von Rollen gilt.
EP87401561A 1986-01-15 1987-07-03 Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen Expired - Lifetime EP0298176B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR868600812A FR2592897B1 (fr) 1986-01-15 1986-01-15 Elargisseur universel pour l'etalement du tricot tubulaire.
DE3783456T DE3783456T2 (de) 1987-07-03 1987-07-03 Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen.
AT87401561T ATE84331T1 (de) 1987-07-03 1987-07-03 Breithalter fuer schlauchware mit differentialem antrieb der lieferrollen.
EP87401561A EP0298176B1 (de) 1987-07-03 1987-07-03 Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87401561A EP0298176B1 (de) 1987-07-03 1987-07-03 Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen

Publications (2)

Publication Number Publication Date
EP0298176A1 EP0298176A1 (de) 1989-01-11
EP0298176B1 true EP0298176B1 (de) 1993-01-07

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EP87401561A Expired - Lifetime EP0298176B1 (de) 1986-01-15 1987-07-03 Breithalter für Schlauchware mit differentialem Antrieb der Lieferrollen

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EP (1) EP0298176B1 (de)
AT (1) ATE84331T1 (de)
DE (1) DE3783456T2 (de)
FR (1) FR2592897B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2592897B1 (fr) * 1986-01-15 1989-02-24 Auffredou Jean Michel Elargisseur universel pour l'etalement du tricot tubulaire.
DE3828094A1 (de) * 1988-08-18 1990-02-22 Dornier Gmbh Lindauer Breithalter fuer schlauchware
IT1294995B1 (it) * 1997-09-08 1999-04-27 Sperotto Rimar Spa Dispositivo allargatore perfezionato per tessuti a maglia tubolare
IT1303701B1 (it) * 1998-11-04 2001-02-23 Ferraro Spa Allargatore di tessuti tubolari con attrazione magnetica.
IT1316828B1 (it) * 2000-03-22 2003-05-12 Ferraro Spa Allargatore di tessuti tubolari con ruote di comando collegate amotori indipendenti
DE10153691C2 (de) * 2001-10-31 2003-09-18 Dornier Gmbh Lindauer Rundbreithalter zum Behandeln textilen Schlauchware
ITUD20030205A1 (it) * 2003-10-14 2005-04-15 Lafer Spa Dispositivo allargatore per un tessuto tubolare.
CH701071B1 (de) * 2007-06-08 2010-11-30 Strahm Hi Tex Systems Ag Vorrichtung zum Spreizen eines schlauchförmigen textilen Werkstücks.
CN104773576A (zh) * 2015-03-30 2015-07-15 江苏鹰游纺机有限公司 履带式展布对中装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567314A (de) *
US3955251A (en) * 1974-10-29 1976-05-11 Warren Hogendyk Fabric spreading and stretching apparatus
US4183318A (en) * 1978-04-26 1980-01-15 Milliken Research Corporation Four belt conveying mechanism for tubular knit gumming and slitting machine
FR2592897B1 (fr) * 1986-01-15 1989-02-24 Auffredou Jean Michel Elargisseur universel pour l'etalement du tricot tubulaire.

Also Published As

Publication number Publication date
EP0298176A1 (de) 1989-01-11
DE3783456D1 (de) 1993-02-18
FR2592897A1 (fr) 1987-07-17
ATE84331T1 (de) 1993-01-15
FR2592897B1 (fr) 1989-02-24
DE3783456T2 (de) 1994-08-25

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