Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D37/00—Circular looms

Definitions

• the invention relates to a shuttle for a circular loom.
• Round looms are generally known in which warp knitting guide elements, e.g. in the form of length compensation compensators, around the reed of the loom are arranged around. About this Kettbyerchen guide elements or through them the circular loom a large number of warp is distributed around distributed. Of the Kettbyerchen guide elements, the warp tapes run to shedding facilities, for example, have provided with eyelets for passing a warp strip provided strands or bands; then the warp tapes pass between bars of the reed.
• warp knitting guide elements e.g. in the form of length compensation compensators
• the warp tapes are divided at the shedding devices - usually in an alternating arrangement - in two Kettbändchenscharen, which are given by opposite movement of the strands or ⁇ senb currently opposite reciprocating movements, whereby the shed (also called moving compartment) is opened and closed.
• the shed forms in the open state a space defined by the two Kettbändchenscharen in which a weaver who wears a Schussbändchenspule moves on a circular path along the Riets while the Schussb choruschen deducted from the shot ribbon coil carried by him and enters the shed.
• the size of the space defined by the two Kettbändchenscharen space of the shed constantly changes with the movement of the two Kettbändchenscharen, starting from zero with closed shed in a position in which both Kettbändchenscharen lie in the same area, up to a maximum, in which the two Kettbändchenscharen are located at opposite reversal points of their alternating movement.
• the so-called change of subject begins by reversing the movement imparted to the opposing warp bands, whereby the last-entered weft ribbon is fixed in the fabric and the next weft ribbon can be inserted into the shed by the next shooter.
• the generated tubular fabric is guided inwardly to a centrally located Webring, where it is deflected to take-off rolls out.
• Such a circular loom is known for example from EP 0 786 026 Bl.
• the overall performance of the circular loom is significantly influenced by the so-called number of shots, which is the number of weft tapes that can be entered per unit time in the shed.
• the number of shots is usually given in "picks per minute.”
• the number of shots has in the past been increased by increasing the speed of rotation of the shooters in the reed and / or increasing the number of shots.
• This specially designed raceways increased the smoothness of the weavers, resulting in less wear of the reed result and thus allowed a higher speed of rotation of the runners on the Riet run.
• CN 202187146 U discloses a shuttle with a bottom plate stiffened to increase the rigidity of the bottom plate by integrally formed ribs.
• the bottom plate of a wiper is usually molded from a plastic material or aluminum. It must always be compromised, because the stiffer an injection molding material, which is desirable due to the higher stiffness of the injection molded part produced under centrifugal force, the greater the material shrinkage during the molding process and the deviations of the injection molded part of the desired shape. At different thicknesses of the injection-molded part, the material shrinkage can also lead to a distortion of the component. Greater tolerances on the dimensions of the molded part, in turn, result in a more erratic run of the shuttle in the reed, thereby reducing the life of the shuttle and the reed. In addition, higher tolerances of the dimensional stability of the components of the weaver lead to a massive increase in noise during operation of the circular loom and are therefore harmful to the health of the operator.
• Such a web-shooter should also be quieter in operation than previous weavers and should help to achieve a high weaving performance of the circular loom while increasing the quality of the tubular fabric produced.
• the present invention achieves this object by providing a wiper with the features of claim 1. Preferred embodiments of the invention are set forth in the subclaims.
• the spacers keep the carrier spaced from each other transversely to the direction of the shuttle, the mass of the shuttle can be reduced, with the same or even higher rigidity compared to the prior art.
• the resulting high dimensional stability of the frame or the entire weaver and the lower mass allow to increase the speed of rotation of the shooter Riet.
• the sum of the number of shots of the circular loom compared to the prior art increases, without increasing the centrifugal force loaded components, such as shooter role, etc. (centrifugal) forces increase.
• the weaver according to the invention reduces the noise of the entire circular loom due to the high dimensional stability and rigidity in the operation of the circular loom.
• the carriers are preferably designed as carrier plates, which are arranged substantially parallel to each other by means of the spacers, wherein the spacers are preferably screwed, welded, glued, riveted or connected by a combination of the mentioned methods.
• the support plates underlying the frame are made equal in their dimensions and in their shape. Carrier plates can be punched out or cut out of metal plates inexpensively with recurring high accuracy by means of punching machines or cutting machines, such as water jet cutting machines, laser cutting machines, etc.
• the main center plane of the shuttle which forms the longitudinal plane of the shuttle and is arranged substantially parallel to the hubs of the wheels attached to the carrier plates, during operation of the loom corresponds to a plane normal to the web from a tangent to the direction of circulation and an imaginary line of the reed on which the shuttle shooter is spanned.
• the web on which the shuttle rotates is formed by the reed sticks of the reed.
• the Rietstäbe are arranged spaced in the Riet in Riet and thus release the openings in which the Kettbändchen are performed, which open and close the shed by changing movements.
• the web on which the shuttle rotates is either a cylinder jacket inner surface, a truncated cone inner surface or a circular ring surface. It proves to be advantageous to align the carrier plate on the main center plane, wherein the orientation with respect to the main center plane depending on the embodiment of the reed on which the shuttle rotates may vary. For example, in a loom in which the orbit of the reed is formed as a cylinder surface, the support plate is upright to the orbit of Riets, thus aligned with the plate main surface parallel to the main center plane, wherein the plate main surface is the surface of the plate, which has the largest extent having.
• the material used for the production of the carrier is preferably as light as possible, while still having sufficient rigidity.
• bridge elements are provided on the carriers, which are aligned transversely to the direction of rotation with the carriers and thus contribute to increasing the overall stiffness of the frame formed by the carriers and the spacers of the weaver. It is advantageous to provide at least one bridge element in the longitudinally front and rear regions of the shuttle, wherein the front region advances in the circumferential direction of the rear area of the shuttle in operation.
• the bridge elements preferably have the same outline and are designed as bridge plates.
• the bridge elements are provided with bores received in bores, which form the receptacle for mounted rollers. Despite the same outline shape different positions of the holes for the brackets of the rollers can be provided on the bridge elements, which in spite of identical parts an adjustment margin is ensured with respect to different variants of the Riets.
• the material used for the production of the bridge elements is preferably as light as possible, but nevertheless sufficient rigidity, as in the case of the carrier plates. In this context and due to the good machinability proves to be particularly advantageous to manufacture the bridging elements as the support of aluminum.
• rollers attached to the bridge elements run along a stop formed in the reed and thus guide the weavers within the reed in the direction of rotation. To ensure that only the rollers in circulation are in any contact with the Riet's stops, they protrude on the long sides of the shuttle.
• the rollers are at least one side advantageous eccentrically adjustable mounted on the bridge element.
• each roller is preferably mounted on the bridge element eccentrically adjustable. Eccentrically adjustable mounted rollers also offer the advantage of a fast and accurate input and Nachstell mecanickeit with any wear of the rollers.
• the wheels of the shuttle are advantageously fastened by means of half-axes to the carriers, wherein the half-axes are preferably rotatably mounted on the carrier plates and the wheels are rotatably supported by means of rolling bearings on the semi-axes.
• the half-axes are interchangeable designed and thus offer the possibility of a cost-effective and quick replacement in case of repair.
• the wheels can be mounted in individual orientation and mounting position on the carrier. Semi-axes are by design a better spring action over rigid axles, so that unevenness of Riets can be better absorbed and compensated, resulting in a quieter run. In this context, further proves to be very advantageous opposite wheels in the direction of the shuttle against each other.
• the half-axes are fastened by means of flanges to the carriers.
• the offset of opposite wheels can be realized very easily on the mounting position of the flange, the advantage of only one type of wheel unit, ie a type of wheel with half-axis and flange, is maintained.
• Figure 1 is a perspective view of the underlying structure of a
• Figure 2 is a perspective view of the shuttle of Figure 1 with the entire structure and a used Schussspule.
• Figure 1 shows in perspective the underlying structure of an embodiment of a weaver according to the invention 1.
• the underlying the weavers 1 frame consists of two separate, almost the length of the shuttle 1 corresponding carrier plates
• the spacers 3 are formed as hexagonal molding tubes with a continuous thread. These are arranged between the support plates 2 and screwed by means of screwed through holes screws, which are not shown, with the support plates 2.
• Pro long side of the shuttle two mounted on half-axes 5 wheels 4, wherein the half-axes 5 are eccentrically attached to a respective flange 6 and the flanges 6 are in turn attached to specially provided Aufhahmeticianen 7 on the support plates 2.
• the receiving points 7 each have four holes, with a hole is centrally mounted and the remaining three holes are arranged at the same distance around the central bore.
• the central bore forms the receptacle for a centrally mounted on the flange 6 stub shaft 8, whereby the flange 6 is positioned and aligned exactly to the support plate 2.
• the fixation of the flange 6 on the support plate 2 by means not shown screws through the three holes arranged around the central bore.
• Figure 2 shows a perspective view of the shuttle 1 of Figure 1 with the entire structure and a shooting coil 11.
• the bearing blocks 12 are mounted so that on the Bearing blocks 12 arranged rotatable coil seats 13 facing each other and the axes of rotation of the coil seats 13 lie in a common axis.
• the shooting reel 11 is received, unwound from the during operation of the circular loom not shown Schussbyerchen and registered by means of an attached in the front region arm 17 in the shed.
• the firing coil 11 is subject to a constant rotation about its own axis.
• bumpers 14 are formed all around the weavers.
• the carrier plate 2 recesses or holes, which serve to reduce the weight. In this regard, however, care must be taken that the weight reduction does not lead to material weakening or weakening of the stiffness of the carrier or of the frame.
• the carriers are made of shaped tubes or U-profiles.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Looms (AREA)
• Knitting Machines (AREA)

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Applications Claiming Priority (2)

Publications (1)

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Citations (3)

Family Cites Families (9)

• 2015
  • 2015-07-20 EP EP15177448.6A patent/EP3121319B1/de active Active
• 2016
  • 2016-07-12 WO PCT/EP2016/066517 patent/WO2017012920A1/de active Application Filing
  • 2016-07-12 CN CN201680042350.1A patent/CN107923086B/zh active Active
  • 2016-07-12 RU RU2018106020A patent/RU2704594C2/ru active
  • 2016-07-12 BR BR112018000120-1A patent/BR112018000120B1/pt active IP Right Grant
  • 2016-07-14 TW TW105122299A patent/TWI707997B/zh active

Patent Citations (3)

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