EP0241036A2 - Dispositif de coupe pour un métier double peluche, plus particulièrement entraînement pour un tel dispositif de coupe et métier à tisser pourvu d'un tel dispositif de coupe - Google Patents

Dispositif de coupe pour un métier double peluche, plus particulièrement entraînement pour un tel dispositif de coupe et métier à tisser pourvu d'un tel dispositif de coupe Download PDF

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Publication number
EP0241036A2
EP0241036A2 EP87105283A EP87105283A EP0241036A2 EP 0241036 A2 EP0241036 A2 EP 0241036A2 EP 87105283 A EP87105283 A EP 87105283A EP 87105283 A EP87105283 A EP 87105283A EP 0241036 A2 EP0241036 A2 EP 0241036A2
Authority
EP
European Patent Office
Prior art keywords
shaft
drive
cutting
drive shaft
drive according
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.)
Withdrawn
Application number
EP87105283A
Other languages
German (de)
English (en)
Other versions
EP0241036A3 (fr
Inventor
André Dewispelaere
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from BE1/011473A external-priority patent/BE904573A/nl
Application filed by Individual filed Critical Individual
Publication of EP0241036A2 publication Critical patent/EP0241036A2/fr
Publication of EP0241036A3 publication Critical patent/EP0241036A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • D03D39/18—Separating the two plush layers, e.g. by cutting

Definitions

  • the invention relates to the cutting device of a double-piece weaving machine.
  • Such a cutting device cuts through the pile threads, which connect the two base fabrics, so that two pile fabrics (separated from one another) are then obtained.
  • the invention relates to the drive for the cutting carriage of such a cutting device.
  • the cutting carriage moves back and forth across the cutting bench, which is arranged across the width of the weaving machine, and cuts a series of pile threads with each pass.
  • the drives known to date for such a cutting device mainly consist of a crank or a traction device which is driven by the drive of the weaving machine with a crank mechanism or a rotating crank mechanism which moves in a forward and backward movement over a limited circular sector.
  • the end of this crank or pulling device interacts with a roller pulling element, the rope of which is guided across the width of the loom and along the cutting bench and is connected to the cutting carriage.
  • the roller pulling element converts the relatively short stroke of the end of the crank or pulling device into a larger stroke which corresponds to the desired movement of the cutting carriage.
  • Another existing drive consists of a crank mechanism, which is coupled to a tooth sector, which in turn is coupled via a transmission to a drum, on which a cable is arranged, which, connected to the cutting carriage, rolls up or rolls onto / from the for this intended width of the drum.
  • This drive also has the disadvantage that, given the effect of the mass of the toothed sector and that of the drum, it is not suitable for high working speeds.
  • the aim of the invention is to eliminate these disadvantages by creating a simpler and more compact drive for the cutting carriage of the cutting device for a double-piece weaving machine. It is also the object of the invention to provide a drive which can be easily adapted to the width of the weaving machine and to the width of the fabric.
  • the drive according to the invention is characterized by a swivel body, one end of which is rotatably connected to a shaft which is oriented at a right angle, and is fixedly connected to an oscillating shaft which is rotatably arranged in the weaving machine, and of which the other end is rotatable and is eccentrically connected to a drive shaft driven by the drive shaft of the loom.
  • the drive according to the invention is further characterized by a cyclic gear or planetary gear, which is connected on the one hand to the oscillation shaft which carries the swivel body, and on the other hand is connected to the cutting carriage via a drive element.
  • the Schwenlckelasticity (1) in Figure 1 runs on one side on a bracket (2) which is rotatably connected to an axis (3) and which engages around an oscillation shaft (4) on which the axis (3) at right angles and firmly mounted.
  • the sleeve (6) sits tightly around the oscillation shaft (4), so that the shaft (3) of both pins (5) is aligned at right angles to the oscillation shaft (4).
  • the swivel body (1) can consequently on the one hand rotate about the axis (3) via a circular sector limited by the shape, and on the other hand can rotate together with the oscillation shaft (4).
  • the swivel body (1) runs out onto a round point of attack (7) which is rotatably and eccentrically connected to the drive shaft (8).
  • the eccentric connection between the point of attack (7) and the drive shaft (8) consists, for example, of a convex-concave disk (9) which is firmly connected to the drive shaft (8) and which is connected to its edge an opening (10) is provided, in which the point of attack (7) is rotatably mounted.
  • the longitudinal axis (11) of the swivel body (1) describes a conical surface (dashed line, Figure 1).
  • the oscillating swivel body (1) forces the shaft (3) or the pins (5) to pivot back and forth, so that the oscillation shaft (4) also rotates back and forth within a limited angle.
  • the swivel body (1) is rotatably connected via the bracket (2) to the pins (5), which are arranged at right angles on the oscillation shaft (4) by means of a sleeve (6); the point of attack (7), which is rotatably and eccentrically in the convex-concave disc (9) on the drive shaft (8).
  • the oscillation shaft (4) is the input shaft, for example of the cyclo drive (12).
  • the shaft (13) is the output shaft of the cyclo drive (12).
  • This toothed belt (15) is then connected to the cutting carriage (16), which runs over the cutting bench (17) and around a row of guide toothed wheels (18), FIG. 3, across the width of the loom at the top along the cutting bench (17) and at the bottom back, running.
  • Another way of transferring the movement of the shaft (13) to the cutting carriage (16) is to use a rope which rolls up and down around a drum which is mounted on the shaft (13) and which one Cutting bench (17) is guided along and is attached to the cutting carriage (16) there.
  • the cyclic gear (12) converts the back and forth rotation within a limited angle of the oscillation shaft (4) into a number of revolutions of the shaft (13). If the oscillation wave (4) for example rotated back and forth at an angle of 60 degrees, the shaft (13) will rotate back and forth with 6 revolutions when the cyclo-transmission (12) works with a gear ratio of 36.
  • the motion amplification can also be realized with a planetary gear, with a gear "amplifier” or a combination instead of with a cyclo gear.
  • the gears (19) are interchangeable, so that the drive shaft (8) with a determined by the choice of these gears rotates ratio to the main shaft of the loom. This ratio can be 1: 2, 1: 3 or 1: 4.
  • the choice determines the number of aisles of the cutting carriage, which is available for a certain number of the reed stop. This represents the first setting option of the drive according to the invention.
  • the drive according to the invention can therefore be easily adapted to the width of the weaving machine; it is sufficient to mount a gear (14) or a drum on the shaft (13), which (s) converts the number of turns that the shaft (13) experiences during a direction of movement into a suitable stroke length of the toothed belt (15) or Rope and thus that of the cutting carriage (16). Carpet, velvet or plush fabrics of different widths can be produced on a weaving machine with a certain width.
  • the drive according to the invention also offers here a simple scheme. It is sufficient to make the eccentricity (the distance from the center) of the point of application (7) larger than the drive shaft (8), Figure 2, in order to get a longer distance of the cutting carriage.
  • This eccentricity can be adjusted by arranging a larger disk (9), FIG. 1, on the drive shaft (8) or by the disk (9) towards the oscillation shaft (4) opposite the drive shaft (8). is moved.
  • the point of attack (7) must not only be rotatable, but also be displaceably and tiltably connected to the disk (9).
  • the disc (9) can also be replaced by a rod with adjustable length.
  • Figure 4 shows a preferred embodiment of the adjustable, eccentric connection between the drive shaft (8) and swivel body (1).
  • This cylindrical end is rotatably seated in an opening (10) near the edge of the disc (9).
  • This convex-concave disc (9) forms the cylindrical surface of a cylinder segment.
  • the outer surface or the surface oriented towards the drive shaft (8) is designed to form a friction connection by means of screws.
  • the disc (9) is provided with one or more slots (23), as a result of which the disc (9) can be displaced over a certain distance by the screws (24) which pass through these slots (23).
  • the drive shaft (8) runs out on a flat disc (25) in which a cylindrical groove is made.
  • the convex-concave disc (9) and the flat disc (25) fit on them Way in different positions on each other.
  • the washer is also provided with threaded holes (27) into which the screws (24) fit.
  • Both disks (9 and 25) can consequently be connected to one another in a certain position with a friction lock by clamping the screws (24).
  • the slots (23) limit the setting of the eccentricity between the point of attack (7) and the drive shaft (8) by their length. In this way, the drive according to the invention can be easily adapted to the fabric width.
  • the pinion (20) on the shaft (21), Figure 3, for the switching function allows the cutting device drive to be switched on and off in a simple manner. It is sufficient to shift the switching pinion (20) on the shaft (21) in order to decouple the drive. However, the drive must be blocked, on the one hand to lock the cutting carriage (16) on one end of the cutting bench (17), and on the other hand to maintain the synchronization between the weaving operation and the cutting operation when weaving double pieces with the pinion (20) switched on. To do this, it is sufficient to lock one of the gears (19) when uncoupling the pinion (20).
  • the drive of the cutting device which can be switched on and off in a simple manner, makes the weaving machine much more polyvalent: the weaving machine can be used either for weaving double pieces or for simple weaving.
  • the advantages of the cutting device according to the invention in particular the drive for a cutting device according to the invention for double-piece weaving machines, are thus obvious.
  • the drive according to the invention is much more compact, which not only saves a lot of space and weight, but also and above all allows a higher number of revolutions for the weaving machine, in view of the fact that the one to be set in motion Mass is reduced compared to known drives.
  • the drive according to the invention allows a much easier adjustment of the cutting movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
EP8787105283A 1986-04-10 1987-04-09 Dispositif de coupe pour un métier double peluche, plus particulièrement entraínement pour un tel dispositif de coupe et métier à tisser pourvu d'un tel dispositif de coupe Withdrawn EP0241036A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE904573 1986-04-10
BE904573 1986-04-10
BE1/011473A BE904573A (nl) 1986-04-10 1986-04-10 Snij-inrichting voor dubbelstukweefmachine, meer in het bijzonder aandrijving voor dergelijke snij-inrichting, en weefmachine met dergelijke snij-inrichting uitgerust.

Publications (2)

Publication Number Publication Date
EP0241036A2 true EP0241036A2 (fr) 1987-10-14
EP0241036A3 EP0241036A3 (fr) 1988-02-03

Family

ID=25661100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP8787105283A Withdrawn EP0241036A3 (fr) 1986-04-10 1987-04-09 Dispositif de coupe pour un métier double peluche, plus particulièrement entraínement pour un tel dispositif de coupe et métier à tisser pourvu d'un tel dispositif de coupe

Country Status (1)

Country Link
EP (1) EP0241036A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217115A1 (fr) 2000-12-22 2002-06-26 SCHÖNHERR Textilmaschinenbau GmbH Dispositif d'entraínement du chariot porte-couteau sur un métier à tisser les tapis doubles
DE10137183A1 (de) * 2001-07-31 2003-02-20 Staeubli Gmbh Antriebsvorrichtung für Arbeitselemente an Webmaschinen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US610711A (en) * 1898-09-13 Knife-sled motion for plush or velvet looms
NL182242C (nl) * 1975-10-13 1988-02-01 Multinorm Bv Inrichting voor het overbrengen van een rotatiebeweging in een oscillerende beweging.
DD157349A1 (de) * 1981-01-28 1982-11-03 Bernhard Huether Antriebsvorrichtung fuer den messerschlitten an doppelteppichwebmaschinen
DE3111424A1 (de) * 1981-03-24 1982-11-25 Hans Norbert 4060 Viersen Heesen "schneideinrichtung fuer doppelgewebe in oder ausserhalb von web- oder wirkmaschinen"
FR2515766A1 (fr) * 1981-11-03 1983-05-06 Jay Electronique Sa Dispositif pour la transformation d'un mouvement rotatif en mouvement oscillant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1217115A1 (fr) 2000-12-22 2002-06-26 SCHÖNHERR Textilmaschinenbau GmbH Dispositif d'entraínement du chariot porte-couteau sur un métier à tisser les tapis doubles
DE10137183A1 (de) * 2001-07-31 2003-02-20 Staeubli Gmbh Antriebsvorrichtung für Arbeitselemente an Webmaschinen

Also Published As

Publication number Publication date
EP0241036A3 (fr) 1988-02-03

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Inventor name: DEWISPELAERE, ANDRE