EP2147992A1 - Machine de passage et procédé de passage des fils de chaîne d'une chaîne à tisser en éléments d'un équipement de tissage - Google Patents

Machine de passage et procédé de passage des fils de chaîne d'une chaîne à tisser en éléments d'un équipement de tissage Download PDF

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Publication number
EP2147992A1
EP2147992A1 EP08405186A EP08405186A EP2147992A1 EP 2147992 A1 EP2147992 A1 EP 2147992A1 EP 08405186 A EP08405186 A EP 08405186A EP 08405186 A EP08405186 A EP 08405186A EP 2147992 A1 EP2147992 A1 EP 2147992A1
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EP
European Patent Office
Prior art keywords
thread
warp
yarn
parameters
warp thread
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Application number
EP08405186A
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German (de)
English (en)
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EP2147992B1 (fr
Inventor
Thomas Gauer
Markus Wolf
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Staeubli AG
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Staeubli AG
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Publication date
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Priority to EP20080405186 priority Critical patent/EP2147992B1/fr
Priority to JP2009172075A priority patent/JP5774273B2/ja
Priority to CN 200910159954 priority patent/CN101634082B/zh
Publication of EP2147992A1 publication Critical patent/EP2147992A1/fr
Application granted granted Critical
Publication of EP2147992B1 publication Critical patent/EP2147992B1/fr
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds

Definitions

  • the invention relates to a drawing-in machine for drawing warp threads of a warp in elements of a harness and a corresponding method for drawing warp threads.
  • the warp threads are usually separated individually from the warp and the respective separated warp threads individually fed into those elements of a harness, which are associated with the respective warp.
  • the warp threads are generally initially arranged in such a way that they form a (warp) thread layer (preferably within one plane and each warp threads arranged parallel to one another).
  • the thread layer is usually stretched and stretched on a so-called thread frame between two clamping rails - an upper clamping rail and a lower clamping rail.
  • a separating agent from the layer, then held by a thread clamp and then below the upper Cut clamping rail.
  • the separated warp thread in the region of a longitudinal section which extends between the two clamping rails, so far away from the warp thread layer that at the lower end, ie above the lower clamping rail, a retraction means, such as a pull-in hook, capture the separated warp can.
  • the retraction moves back with each detected warp thread and thus pulls this warp with him and finally tears this completely out of the thread clamp.
  • the required clamping force of the thread clamp is different. Also, the required clamping force may vary as the retraction speed (i.e., the speed at which the retraction means moves during retraction) is changed. To enable optimization, the clamping force of the thread clamp is adjustable.
  • the known Einziehmaschinen have the disadvantage that the clamping force can be changed only on the occasion of a change from one to another warp. If warp threads with different properties with respect to their coefficient of friction are used within the same warp, an optimum has to be sought or compromise selected or the feed speed adapted to adjust the different properties of all the warp threads of the warp wear and prevent, for example, that individual warp threads are damaged by the action of the thread clamp and / or the drawing-in means.
  • the conversion of a drawing-in machine or finding a suitable optimum for the clamping force and the feed speed are usually complex, especially when often warp threads are processed from different materials. To change the clamping force of the thread clamp is usually a manual intervention of an operator necessary.
  • the efficiency of the operation is generally reduced.
  • the respective clamping force or the retraction speed must not exceed certain predetermined limits, for example with regard to particularly sensitive warp threads.
  • the time that is required to collect all the warp threads of a warp is therefore essentially determined by those warp threads that are particularly sensitive and therefore may be drawn only with the lowest collection speed, especially since all warp threads of the same warp held only with the same clamping force and the same feed speed can be fed.
  • the present invention is therefore based on the object to avoid the disadvantages mentioned and to provide a Einziehmaschine for feeding warp threads of a warp in elements of a woven harness, which allows efficient, high-quality processing of warp threads of materials with different material properties. Furthermore, a corresponding method for drawing warp threads should be defined.
  • the drawing-in machine comprises a measuring device for detecting at least one yarn parameter of the respective warp thread, wherein the thread clamp and / or the drawing-in means are controllable in dependence on at least one of the yarn parameters respectively detected by the measuring device.
  • each warp thread can be characterized before retraction in terms of its individual characteristics and the control device can take into account in real time on the individual properties of each warp thread in the control of the Einziehreaes.
  • the drawing machine can be optimally adjusted to the processing of each individual thread in real time - depending on its properties.
  • a manual adjustment of the clamping force is unnecessary when using warp threads with different warp threads, which are characterized by different yarn parameters. This is obviously particularly advantageous when warp threads with different material properties are to be processed, e.g.
  • a warp to be processed which itself consists of a sequence of warp yarns with different yarn parameters.
  • the yarn parameters which can be detected by the respective measuring device may be different.
  • the measuring device comprises a first optical A system for generating a first image of the respective warp held and an image processing system for processing the first image, wherein the respective yarn parameters are detectable by the image processing system.
  • yarn parameters can be detected, which are accessible to an optical inspection and can be determined by optical means.
  • this measuring device can provide further information about the current operating state, which can be used to control the operating sequence.
  • the measuring device makes it possible, for example, to determine the edge of a thread layer and thus to determine the location of that warp thread of a warp, which is to be processed as a rule first.
  • the measuring device thus enables a precise positioning of the drawing-in machine relative to the particular warp to be processed. Furthermore, it allows the measuring device to determine whether a warp thread was separated when an action of the separating agent on the respective thread layer, and if so, whether only one warp thread was separated. In this way, the measuring device makes it possible to detect operating errors of the drawing-in machine and, if necessary, to initiate measures for error correction.
  • the measuring means further allows control over whether the warping machine feeds the warp yarns in the predetermined one Feeds into the elements of the weaving table.
  • the yarn parameters (actual values) of a separated warp yarn detected by the measuring device can be compared with the known yarn parameters (desired values) of the warp yarn, which according to the predetermined order of the warp yarns Retraction should be provided.
  • Such a comparison of actual values and nominal values makes it possible to check whether the order of the respective warp threads was reversed during the handling of the respective warp chain or not.
  • a further development of the above-mentioned measuring device is based on the measuring device comprising, in addition to the first optical system for producing a first image of the respective held warp thread, a second optical system for producing a second image of this warp thread and an image processing system for processing the second image, wherein the two images represent the respective thread from different perspectives and the respective yarn parameters can be determined with the aid of the image processing system.
  • the two optical systems enable a recording of a stereoscopic image, which is composed of the first image generated with the first optical system and the second image generated with the second optical system.
  • An evaluation of the stereoscopic image makes it possible to use 3D spatial information to characterize the respective warp threads.
  • This 3D spatial information allows - in comparison to an evaluation of only 2-dimensional images - a more accurate characterization of the respective warp threads, in particular with regard to their spatial position and their structure.
  • the aforesaid yarn parameters (ix) - (xi) include determining whether the respective warp yarn consists of staple fiber yarn, monofilament yarn or multifilament yarn, or comprises one of these yarn types.
  • Another variant of the drawing-in machine has a measuring device which comprises a force sensor for detecting a force acting on the respectively held warp thread, for example for detecting a force acting in the longitudinal direction of the warp thread.
  • the force sensor enables the detection of yarn parameters that characterize the warp properties, such as the tear strength or elastic constants of the warp.
  • the thread clamp can be actuated as a function of at least one parameter controllable by the control device, and at least one of the respective controllable parameters of the thread clamp can be changed by the control device as a function of at least one of the yarn parameters detected by the measuring device.
  • the thread clamp can be controlled by means of the control device such that the clamping force of the thread clamp and / or a time profile of the clamping force of the thread clamp can be changed as a function of the respectively detected yarn parameters.
  • the clamping force may assume different values for warp threads which differ in terms of friction with respect to the surface of the thread clamp or with regard to their extensibility or their sensitivity to mechanical loads. Accordingly, the speed at which the thread clamp can be opened to release the respective warp thread can be varied depending on the yarn parameters.
  • the drawing-in means can be actuated as a function of at least one parameter controllable by the control device and at least one of the respective controllable parameters of the drawing-in means can be changed by the control device as a function of at least one of the yarn parameters detected by the measuring device.
  • the drawing-in means for retracting the respective warp thread of a predetermined path movable, wherein a speed and / or acceleration of the Einziehstoffs depending on the respectively detected Garnparametern and / or a position of the Einziehstoffs is changeable.
  • the speed and / or the acceleration of the drawing-in means can, for example, be varied selectively along the respective path of the drawing-in means, for example as a function of the tensile strength, the bending ability and / or the brittleness of the respective warp thread. In this way it is achieved that each warp thread can be drawn in the shortest possible time without damaging the warp thread (for example, thread breaks or thread breaks can be avoided).
  • the duration of an operating cycle of the drawing machine for processing a warp thread can thus be minimized individually for each warp thread. Accordingly, the time required to retract all warp threads of a warp by means of the drawing machine into the elements of the weaving harness is minimized.
  • An embodiment of the drawing-in machine comprises a memory for storing the yarn parameters respectively detected by the measuring device.
  • the yarn parameters detected during the processing of a first warp can be stored.
  • the stored yarn parameters of this first warp can then be used to control the picking machine if a second warp is processed with the same sequence of warp yarns as the first warp.
  • At least one of the respective controllable parameters of the thread clamp and / or at least one of the respective controllable parameters of the drawing-in means can be changed by the control device as a function of predetermined data, which are assigned to the respective warp threads individually and in one Memory are provided or the control device from an external data source are available.
  • predetermined data can be, for example, characteristic yarn parameters of the respective warp threads, which can not be readily determined by means of the respective measuring device, but nevertheless influence the behavior of the warp threads during drawing in. For example, it is difficult to characterize the stickiness, slipperiness (slipperiness) or elastic properties of warp yarns with a measuring device based on an optical inspection.
  • the thread clamp is actuated in dependence on at least one parameter controllable by the control device, wherein at least one of the respective controllable parameters of the thread clamp determined by the control device in dependence on at least one of each detected by the measuring device yarn parameters of the respective warp to be recovered and / or changed.
  • the retraction means is actuated in dependence on at least one parameter controllable by the control device, wherein at least one of the respective controllable parameters of the retraction means is determined by the control device as a function of at least one of the respective yarn parameters of the respective warp thread to be retracted / or changed.
  • the yarn parameters of the warp threads of a warp are detected by the measuring device and the stored yarn parameters are used to control the feeding of warp threads of another warp into elements of a weaving harness in dependence on the stored yarn parameters.
  • the storage of the yarn parameters simplifies the processing of several warp strings in succession, provided that the warp threads each have an identical sequence of warp threads (ie, the respective nth warp threads of the respective warp threads are characterized by identical yarn parameters in each case).
  • the respectively detected yarn parameters the warp threads of a first warp each serve as set values for the yarn parameters of the warp threads of another warp to be processed after the first warp.
  • Fig. 1 shows a Einziehmaschine 1 for drawing warp threads of a warp in elements of a (in Fig. 1 not shown) woven harness.
  • the drawing-in machine 1 comprises a drawing-in carriage 5 for providing the respective warp threads to be processed, a drawing-in module 15, a control panel 16 for operating the drawing-in machine 1, a guide structure 20 for guiding elements of the respective woven harness in the longitudinal direction of the guide structure 20 and a control cabinet 24 one in Fig. 1 not visible and in Fig. 8 contains schematically illustrated control device 25.
  • the Einziehwagen 5 includes a warp beam 5.1 for receiving the respective warp and wearing a in the Fig. 1 not visible, but in Fig. 2-3 shown thread frame 10 for mounting the warp threads of the respective warp in a vertical plane, wherein the thread frame 10 two superimposed in a vertical plane clamping rails 10.1 ("upper" clamping rail of the thread frame 10) and 10.2 (“lower” clamping rail of the thread frame 10) for Warp of each warp includes ( Fig. 2-3 ).
  • the pull-in cart 5 is movable in the longitudinal direction of the guide structure 20, as in FIG Fig. 1 is indicated by the double arrow 5.2, and thus allows a transport of the warp beam 5.1 and the thread frame 10 together with the respective stretched on the thread frame 10 warp threads along the guide structure 20 (in the direction of arrow 5.2).
  • the draw-in module 15 of the drawing-in machine 1 is arranged stationary with respect to the guide structure 20 and comprises a plurality of components controllable by means of the control device 25, the function of which in connection with FIG Fig. 2-10 will be explained and serve to act on the respective warp threads to collect the warp threads in the respective elements of a woven harness.
  • FIGS. 2 and 3 show the thread frame 10 together with a thread layer 30, which is formed in the present example of n warp threads 30.1, 30.2, .., 30.n a warp.
  • a thread layer 30 which is formed in the present example of n warp threads 30.1, 30.2, .., 30.n a warp.
  • each longitudinal sections of the warp threads 30.1 to 30.n are held at upper ends (of the respective longitudinal sections) by means of the clamping rail 10.1 and at lower ends (of the respective longitudinal sections) by means of the clamping rail 10.2, said longitudinal sections before the onset of each first Assume initial state in which the longitudinal sections between the clamping rails 10.1 and 10.2 are each vertically aligned and arranged parallel to each other.
  • the thread frame 10 can be positioned by moving the Einziehwagens 5 along the arrow 5.2 relative to the Einziehmodul 15. In this way, the longitudinal sections of the warp threads 30.1 - 30.n held in the thread frame 10 can each be brought into a position in which the respective longitudinal section can be influenced or processed by means of the insertion module 15.
  • the pull-in module 15 is designed so that the pull-in module 15 can act on the warp thread during a work cycle, which is arranged on the foremost edge (with respect to the pull-in module 15) of the thread layer 30.
  • the abovementioned components a), b), d) and f) serve to sequentially grasp the individual warp threads 30.1 to 30.n and to change their spatial arrangement in each case in comparison with the remaining warp threads so that each warp thread is separated from the warp thread Retraction means 60 detected and can be fed into the respective elements of a harness.
  • the feeder 56 and the presentation device 56 have, in particular, the task of detecting a portion of a warp thread separated from the thread layer 30 and arranging it in space such that the pull-in means 60 can grip the respective warp thread on the presentation device 56 (as in connection with FIG Fig. 7 will be explained in more detail).
  • the warp thread 30.1 is separated by an action of the separating agent 33 from the thread layer 30 and is held in the vicinity of the upper clamping rail 10.1 through the thread clamp 35.
  • the presentation device 56 and the feeder 58 are positioned in the present case such that the warp thread 30.1 is held in the space by means of the presentation device 56 and the feeder 58 such that the warp thread 30.1 on the presentation device 56 can be grasped by the pull-in means 60.
  • the retraction means 60 is formed in the present case as Einziehhaken and has the shape of an elongated rod with a hook-shaped end 60.1. According to Fig. 3 Can the retraction agent 60 are reciprocated in its longitudinal direction between different positions, as indicated by a double arrow 60.2. In the in Fig. 3 In the illustrated situation, the pulling-in means 60 are arranged in such a way that the warp thread 30.1 on the presentation device is grasped by means of the hook-shaped end 60.1.
  • Fig. 3 also shows elements of a weaving harness 65, which in the present case, for example, sipes 66 each having a retraction opening 66.1, strands 67 each having a retraction opening 67.1 and a reed 68 having a plurality of teeth and a plurality of formed between the respective teeth retracting openings 68.1.
  • a weaving harness 65 which in the present case, for example, sipes 66 each having a retraction opening 66.1, strands 67 each having a retraction opening 67.1 and a reed 68 having a plurality of teeth and a plurality of formed between the respective teeth retracting openings 68.1.
  • the object of the drawing-in machine 1 is to first sequentially feed each individual warp thread 30.1 to 30.n of the thread layer 30 into one of the lamellae 66 (ie to pull one of the lamellae 66 through the draw-in opening 66.1), then to pull it into one of the strands 67 (ie through pull the pull-in opening 67.1 of one of the strands 67) and then pull it into the reed 68 (ie, pull it through one of the pull-in openings 68.1 of the reed 68.1).
  • Fig. 3 For the sake of simplicity, only one rack 66 and one strand 67 are shown.
  • the retraction means 60 through one of the retraction openings 68.1 of the reed 68, the retraction opening 67.1 one of the strands 67 and the retraction opening 66.1 one of the fins 66 out.
  • the warp thread 30.1 is entrained in a directed to the reed 68 movement of the retraction means 60 of the hook-shaped end 60.1 and successively in the in Fig. 3 illustrated elements of the weaving harness 65 (lamella 66, stranded wire 67 and reed 68) retracted.
  • the remaining warp threads of the thread layer can be drawn analogously in each case into another lamella 66, another strand 67 and into respectively other pull-in openings of the reed 68.
  • the elements of the woven harness 65 required during operation of the drawing-in machine 1 must be transported before and after drawing in the respective warp threads. They are automatically removed before retraction a magazine, not shown, and positioned relative to the retraction means 60 so that the respective warp threads can be retracted into predetermined elements of the harness 65. After the warp threads have been pulled in, the respective elements of the woven harness 65 can be transported together with the drawn warp threads in the longitudinal direction of the guide structure 20.
  • the transport of the respective elements of the woven harness 65 can be accomplished with means of transport, which are known per se, for example EP 0 460 129 B1 , Since these means of transport are also not relevant in this context, will be dispensed with a more detailed discussion here. For simplicity, these means of transport are not shown in the figures.
  • the separating means 33 is realized as a suction nozzle, which is movable within the plane of the thread layer 30 in the direction of the thread layer 30 or in the opposite direction (away from the thread layer 30), as in FIG Fig. 4 is indicated by a double arrow 33.2.
  • the drawing-in means 33 has on a side facing the thread layer 30 a conical slot 33. 1 into which a suction opening (not shown in the figures) opens.
  • the separating means 33 may initially have brought so close to the warp thread to be separated that the respective warp thread is sucked into the slot 33.1 and then held in the slot 33.1 when a vacuum is applied to said suction opening. If the separating agent 33 then from the edge of the thread layer 30 moves away, then the respective held in the slot 33.1 warp thread is entrained with the separating means 33 and thus removed from the remaining warp threads of the thread layer 30 (separated). In the case of in Fig. 4 the warp thread 30.1 has been separated from the thread layer 30 in the above-mentioned manner with the separating means 33 and is held by the thread clamp 35 and possibly additionally held in the slot 33.1 of the separating means 33 in a so-called "test position".
  • a warp thread in the test position (eg warp thread 30.1 in Fig. 4 ), can be examined by means of the measuring device 39.
  • the measuring device 39 comprises a warp optical inspection system 40 and an image processing system 43 for processing or evaluation of images that can be generated by means of the optical inspection system 40.
  • the optical inspection system 40 comprises a first optical system 41 in the form of a first camera and a second optical system 42 in the form of a second camera.
  • the first optical system 41 allows a visual inspection of objects located within the solid angle indicated by the in Fig. 4 specified cone 41.1 is limited.
  • the second optical system 42 allows a visual inspection of objects located within the solid angle indicated by the in Fig. 4 specified cone 42.1 is limited.
  • Fig. 4 indicates a warp thread, which was brought into the test position (warp 31.1 in the present case), both in the area of the cone 41.1 and in the area of the cone 42.1. Accordingly, by means of the first optical Systems 41 are generated a first image of this warp and by means of the second optical system 42, a second image of this warp. As Fig. 4 Further, the optical systems 41 and 42 are arranged such that the axis 41.2 of the cone 41.1 (which is identical to the optical axis of the optical system 41) and the axis 42.2 (which is identical to the optical axis of the optical system 42) to intersect at an angle of approximately 45 ° at a point coincident with the test position of the warp threads. The two optical systems 41 and 42 thus make it possible to produce two different images, each representing a warp thread from two different perspectives, and able to be combined to form a stereoscopic image of the respective warp thread.
  • the images generated by the optical systems 41 and 42 can each be evaluated with the image processing system 43.
  • the axis 41.2 is arranged perpendicular to the plane of the thread layer 30, while the axis 42.2 is inclined at an angle of approximately 45 ° to the plane of the thread layer 30.
  • This arrangement of the optical systems 41 and 42 has the advantage that the images produced in each case can provide simple and reliable information as to whether a warp thread was separated by means of the separating means 33 and brought into the test position or whether erroneously no warp threads or for example two Warp threads (double thread recognition) were separated.
  • the two optical systems 41 and 42 can of course also be arranged in other angular positions with respect to the thread layer 30, wherein the respective cutting angle between the axes 41.2 and 42.2 can be selected arbitrarily in the range between 0 ° and 180 °.
  • a warp thread separated from the thread layer 30 can be grasped and held by means of the thread clamp 35.
  • the Fig. 5 shows the thread clamp 35 in a state in which the thread clamp 35 holds the separated from the thread layer 30 warp 30.1 in the test position.
  • the thread clamp 35 comprises according to Fig. 5 a movable part 36, a drive motor 37 for moving the movable part 36, and a stationary part 38 serving as a stop for the movable part 36, so that a warp thread can be clamped and thus held between the stationary part 38 and the movable part 36.
  • the movable block 36. 1 can be continuously adjusted relative to the stationary part 38 by a corresponding activation of the drive motor 37 with the aid of the control device 25.
  • the adjustment range of the movable block 36.1 is chosen so that the movable block 36.1 is positioned within a first part of the adjustment so that a gap between the clamping member 36.2 and the stationary part 38 is formed, wherein the gap is large enough to a warp thread to place in this space without the clamping element 36.2 touching the respective warp thread.
  • the thread clamp assumes an open state (position Z1 in Fig. 8 ).
  • the distance of the movable block 36.1 with respect to the stationary part can finally be reduced by a corresponding control of the drive motor 37 such that the spring 36.4 is compressed between the movable block 36.1 and the clamping element 36.2 and thus tensioned.
  • the thread clamp 35 assumes a closed state (position Z2 in FIG Fig. 8 ), wherein the spring 36.4, the clamping element 36.2 against the stationary part 38 and against a arranged between the clamping element 36.2 and the stationary part 38 warp thread (warp thread 30.1 in the representations Fig. 2 . 5 and 8th ) presses.
  • the respective tension of the spring 36.4 determines the size the clamping force F, which exerts the clamping element 36.2 on the stationary part 38 or on the warp thread which is arranged between the clamping element 36.2 and the stationary part 38.
  • Fig. 6 illustrates the cutting device 50 in a state ready to cut the warp thread 30.1.
  • the cutting device 50 comprises a cutting blade 50.1 and a drive 50.2, by means of which the cutting blade 50.1 can be moved relative to the warp thread 30.1 in order to cut it.
  • the double arrow 50.3 indicates the directions in which the cutting blade 50.1 can be moved.
  • the drive 50.2 can be controlled by means of the control device 25 in order to appropriately control the time at which the respective warp thread is cut.
  • Fig. 7 shows in conjunction with Fig. 3 - The example of the warp thread 30.1 - the function of the presenter 56 and the feeder 58.
  • the presenter 56 and the feeder 58 act on a separated from the thread layer 30 warp thread such that this warp thread relative to the Einziehstoff 60 occupies a position in which the Warp thread detected by the retraction means 60 and can then be retracted into the respective elements of the harness 65.
  • the presentation device 56 is arranged stationarily with respect to the thread layer 30.
  • the presentation device 56 has in a top surface 56.1 a groove 56.2 which is parallel is aligned to the direction of movement 60.2 of the retraction means 60.
  • the retraction means 60 can be brought into a position in which the hook-shaped end 60.1 lies in the groove 56.2 of the presenter 56 and partially protrudes from the groove 56.2 upwards (beyond the level of the upper surface 56.1 addition).
  • the respective warp thread can only be separated from the thread layer by a distance which is so small that the warp thread can not be brought into contact with the presentation device 56.
  • the feeder 58 can - like the double arrow 58.2 in Fig. 7 indicates - be reciprocated at an acute angle with respect to the edge of the thread layer 30.
  • the feeder 58 has at one edge a recess 58.1, which serves to detect a warp thread and optionally lead.
  • the feeder 58 is controlled such that it assumes a position at the upper end of the thread layer 30 in the vicinity of the separating means 33 immediately after the separation of a warp thread and the respectively separated warp thread (warp thread 30.1 in the case of Fig.
  • the feeder 58 is moved at an acute angle with respect to the edge of the thread layer 30 downwards, wherein the separated warp thread is deflected laterally relative to the edge of the thread layer ( Fig. 2 ).
  • the movement of the feeder 58 is controlled so that a portion of the separated warp thread 30.1 is finally brought into contact with the upper surface 56.1 of the presentation device 56 and assumes a position in which it spans the groove 56.2 transverse to the direction of movement 60.2 of the pulling-in means.
  • the warp thread 30.1 can be grasped and entrained with the hook-shaped end 60.1 of the separating means 60 when the separating means 60 is moved along the arrow 60.2 in the direction of the elements of the weaving harness 65 ( Fig. 3 . 7 ).
  • the feeder 58 of the separated warp thread 30.1 loaded on train and possibly at least partially pulled out of the (in this case closed) thread clamp 35.
  • Fig. 8 schematically illustrates the control of the thread clamp 35 and the measuring device 39 by means of the control device 25.
  • the control device 25 is connected to the optical inspection system 40 of the measuring device 39 via a communication link 25.1.
  • the control device 25 is further connected to the image processing system 43 of the measuring device 39 via a communication link 25.2.
  • the optical inspection system 40 and the image processing system 43 of the measuring device 39 are connected via a data line 44, which allows a data exchange between the optical inspection system 40 and the image processing system 43.
  • the inspection of those warp threads of the thread layer 30 which are located in the test position in the region of the cones 41.1 and 42.1 of the optical systems 41 and 42 can be controlled via the communication connection 25.1.
  • the images generated by the optical systems 40 and 41 are transmitted via the data line 44 to the image processing system 43 and evaluated by the image processing system 43.
  • the evaluation first provides the information as to whether exactly one warp thread has been separated. If this is not the case, there is an error which is reported to the control device 25 via the communication link. If exactly one warp thread was separated and brought into the test position, the image processing system 43 determines the yarn parameters of the respective warp thread, in particular at least one of the mentioned yarn parameters (i) to (xi).
  • the warp thread 30.2 is separated from the thread layer 30 and is currently in the test position.
  • the yarn parameters of the warp thread 30.2 detected in the manner mentioned are transmitted via the communication link 25.2 transmitted to the control device 25 and stored in a memory 26 of the control device 25.
  • the warp thread 30.1 has already been subjected to the same inspection by the measuring device 39 in a previous work step. In the in Fig. 8 Therefore, the respective yarn parameters of the warp 30.1 have already been detected, transmitted to the control unit 25 and stored in the memory 26.
  • the control device 25 is connected to the thread clamp 35 via a communication link 25.3.
  • the drive motor 37 of the thread clamp 35 can be controlled via the communication connection 25.3 in order to close and / or open the thread clamp 35 and / or to control the momentary magnitude of the clamping force F.
  • Fig. 8 shows the thread clamp 35 in two different positions Z1 and Z2, wherein the thread clamp 35 in the position Z1 (shown by solid lines) is opened while the thread clamp 35 is closed in the position Z2 (the position of the clamping element 36.2 is for this case marked with dashed lines).
  • the thread clamp 35 can be controlled as a function of at least one of the yarn parameters detected by the measuring device 39.
  • the clamping force F of the thread clamp 35 and / or the time course F (t) of the clamping force F of the thread clamp 35 are variable as a function of the respectively detected yarn parameters.
  • the memory 26 of the control device 25 contains specifications of a plurality of preprogrammed courses F n (t) of the clamping force F of the thread clamp 35 as a function of the time t, which are respectively adapted to the material properties of different threads (the index n in the designation F n (t) should in this context distinguish between different time profiles F (t) of the clamping force F).
  • the control device has a control program, which in each case assigns one of the preprogrammed courses F n (t) of the clamping force to the respectively detected yarn parameters of a warp thread.
  • the respective assignment of yarn parameters and preprogrammed progressions Fn (t) can be formed, for example, on the basis of mathematical functions or relations previously specified on the basis of experimental data and empirical values. Such experimental data and empirical values can be obtained, for example, in test runs of the drawing-in machine 1 when drawing in warp threads with different yarn parameters.
  • the retraction means 60 and the cutting device 50 are also controlled by the control device 25 as a function of at least one of the yarn parameters respectively detected by the measuring device 39.
  • a drive (not shown here) for moving the pulling-in means 60 and the drive 50.2 of the cutting device 50 are controlled accordingly by the control device 25 (via in FIG Fig. 8 not shown communication links).
  • the speed v and / or the acceleration of the drawing-in means 60 are controlled as a function of the respectively detected yarn parameters and / or a position of the drawing-in means 60.
  • the memory 26 of the controller 25 includes specifications of a plurality of preprogrammed progressions of the speed and / or acceleration of the retraction means 60 as a function of the position of the retraction means 60.
  • the controller 25 has via a control program, which in each case assigns one of the preprogrammed courses of the speed and / or the acceleration of the pulling-in means 60 to the respectively detected yarn parameters of a warp thread. This assignment can be made on the basis of mathematical functions or relations previously specified on the basis of experimental data and empirical values (analogous to the above-mentioned control of the clamping force F).
  • the Fig. 9 shows by way of example (as a "small" selection) three different preprogrammed courses of the clamping force F as a function of the time t (in a merely qualitative representation).
  • the respective courses are applicable to different warp threads, which differ, for example, with respect to their elastic properties (eg extensibility) or their friction with respect to the thread clamp 35 and can therefore be loaded with different sized clamping forces F.
  • the various preprogrammed courses of the clamping force F are symbolically characterized by the indication of different parameters P1, P2, P3.
  • the clamping force F is kept temporarily constant for a number of successive time intervals I, II, III and IV and temporarily reduced continuously or in stages.
  • the time interval I follows directly on the separation of the respective warp thread from the thread layer 30.
  • the respective warp thread In time interval I, the respective warp thread is held with a constant, corresponding to the respective maximum value clamping force F (the thread clamp 35 is fully closed).
  • the clamping force F in the case of all parameters P1, P2, P3
  • the time interval III In the time interval IV, the clamping force F (in the case of all parameters P1, P2, P3) in each case continuously reduced to 0 in order to open the thread clamp.
  • the thread clamp 35 is therefore partially relaxed.
  • This time interval III is used in operation to move the feeder 58 - starting from the upper end of the thread frame 10 - in the direction of the presentation device 56 ( Fig. 2 and 7 ).
  • the reduction of the clamping force F in the time interval III causes the respective held in the thread clamp warp thread in the said movement of the feeder 58 can be partially pulled out of the closed thread clamp 35 and thereby less burden. This procedure allows a particularly gentle treatment of the respective warp thread.
  • the Fig. 10 3 shows by way of example (as a "small" selection) three different preprogrammed courses of the drawing speed v of the drawing-in means 60 as a function of the length D of the path which the hook-shaped end 60.1 of the drawing-in means 60 covers during retraction (in a merely qualitative representation).
  • the respective courses are applicable to different warp threads, which are, for example, differently sensitive with regard to mechanical loads and differ, for example, with regard to brittleness, bendability or tensile strength.
  • Fig. 10 the various preprogrammed courses of the intake speed v are symbolically characterized by the specification of different parameters Q1, Q2, Q3. According to Fig. 10 Depending on the selection of one of the parameters Q1, Q2, Q3, the retraction means 60 is accelerated at different speeds and reaches different speeds.
  • a suitable selection of one of the preprogrammed courses of the pull-in speed v as a function of the individual properties of the respective warp thread allows Accordingly, it is to make the Einziehrea so that the respective warp thread is drawn with the greatest possible speed, without overloading the warp thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Treatment Of Fiber Materials (AREA)
EP20080405186 2008-07-25 2008-07-25 Machine de passage et procédé de passage des fils de chaîne d'une chaîne à tisser en éléments d'un équipement de tissage Active EP2147992B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20080405186 EP2147992B1 (fr) 2008-07-25 2008-07-25 Machine de passage et procédé de passage des fils de chaîne d'une chaîne à tisser en éléments d'un équipement de tissage
JP2009172075A JP5774273B2 (ja) 2008-07-25 2009-07-23 製織用たて糸群のたて糸を織機ハーネスの部材へ引き込むための引込機械および方法
CN 200910159954 CN101634082B (zh) 2008-07-25 2009-07-23 向一个纺织机架的零件中拉一个经纱的经丝的穿经机和方法

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EP20080405186 EP2147992B1 (fr) 2008-07-25 2008-07-25 Machine de passage et procédé de passage des fils de chaîne d'une chaîne à tisser en éléments d'un équipement de tissage

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EP2147992B1 EP2147992B1 (fr) 2012-11-07

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN108315852A (zh) * 2018-02-12 2018-07-24 首都师范大学 纺纱机穿线方法及装置
CN112061879A (zh) * 2020-08-10 2020-12-11 深圳市海弘装备技术有限公司 分纱模组、穿经机及供纱方法

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EP2388362B1 (fr) * 2010-05-21 2012-12-26 Stäubli AG Pfäffikon Dispositif de tension et procédé destiné à retendre des fils de chaîne d'une couche de fils de chaîne
CN107156973A (zh) * 2017-06-07 2017-09-15 周敏 一种针织手套连续纺织装置
CN108866773A (zh) * 2018-08-03 2018-11-23 江苏罗曼罗兰集团有限公司 能减少结经绞头的结经工艺
CN110865084A (zh) * 2019-12-10 2020-03-06 闪电(昆山)智能科技有限公司 基于自学习模式的综丝分离检测系统及方法
CN114381845B (zh) * 2021-12-20 2023-05-05 诸暨市捷速尔纺织机械有限公司 一种穿综机用宽幅剑带钩纱方法

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WO1991005099A1 (fr) * 1989-10-04 1991-04-18 Zellweger Uster Ag Machine pour rentrer automatiquement les fils de chaine
EP0460129A1 (fr) 1989-12-22 1991-12-11 Zellweger Uster Ag Dispositif pour le remettage de fils de chaine.
WO2003064746A2 (fr) * 2002-01-30 2003-08-07 Stäubli Ag Pfäffikon Dispositif permettant de separer des fils d'une couche de fils
EP1870501A1 (fr) * 2006-06-23 2007-12-26 Stäubli AG Pfäffikon Dispositif de séparation de fils d'une couche de fils, procédé pour opérer le dit dispositif et utilisation du dit dispositif

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JPH0742637B2 (ja) * 1989-10-25 1995-05-10 シーケーディ株式会社 糸分離装置
JPH05287647A (ja) * 1992-04-06 1993-11-02 Toudou Seisakusho:Kk 経糸分離装置用の２本糸検出方法とその２本糸検出機構
AU8099398A (en) * 1997-07-17 1999-02-10 Staubli Ag Pfaffikon Method and device for aligning the eyelets of harness elements
JP2001516815A (ja) * 1997-09-15 2001-10-02 シユトイブリ・アクチエンゲゼルシヤフト・プフアツフイコーン たて糸引込み機においてたて糸を張る装置
CN201272878Y (zh) * 2008-09-24 2009-07-15 东营市天信纺织有限公司 自动穿经机吸纱装置

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Publication number Priority date Publication date Assignee Title
US3681825A (en) 1970-05-11 1972-08-08 Zellweger Uster Ag Machine for the automatic drawing in of the threads of a warp
WO1991005099A1 (fr) * 1989-10-04 1991-04-18 Zellweger Uster Ag Machine pour rentrer automatiquement les fils de chaine
EP0446326A1 (fr) 1989-10-04 1991-09-18 Zellweger Uster Ag Machine pour rentrer automatiquement les fils de chaine.
EP0460129A1 (fr) 1989-12-22 1991-12-11 Zellweger Uster Ag Dispositif pour le remettage de fils de chaine.
EP0460129B1 (fr) 1989-12-22 1995-06-28 Stäubli AG Dispositif pour le remettage de fils de chaine
WO2003064746A2 (fr) * 2002-01-30 2003-08-07 Stäubli Ag Pfäffikon Dispositif permettant de separer des fils d'une couche de fils
EP1870501A1 (fr) * 2006-06-23 2007-12-26 Stäubli AG Pfäffikon Dispositif de séparation de fils d'une couche de fils, procédé pour opérer le dit dispositif et utilisation du dit dispositif

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108315852A (zh) * 2018-02-12 2018-07-24 首都师范大学 纺纱机穿线方法及装置
CN108315852B (zh) * 2018-02-12 2019-07-23 首都师范大学 纺纱机穿线方法及装置
CN112061879A (zh) * 2020-08-10 2020-12-11 深圳市海弘装备技术有限公司 分纱模组、穿经机及供纱方法
CN112061879B (zh) * 2020-08-10 2022-03-29 深圳市海弘装备技术有限公司 分纱模组、穿经机及供纱方法

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JP2010031447A (ja) 2010-02-12
JP5774273B2 (ja) 2015-09-09
CN101634082B (zh) 2013-05-15
EP2147992B1 (fr) 2012-11-07
CN101634082A (zh) 2010-01-27

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