JP2013518997A - Manufacturing method and loom of woven fabric having auxiliary weft effect - Google Patents

Abstract

  In the weaving machine for the woven fabric (0) having an additional weft effect, the effect yarn (2) supplied in the warp direction over the inserted weft yarn is a plurality of adjacent ones drawn into the various ridge grooves (14). The warp (1) is used to move in the weft direction (12) over a freely programmable travel path (A). In order to interweave the effect yarn (2) and the weft yarn (3), the effect yarn (2) is arranged under the weft yarn (3) to be inserted, and the scissors (10, 7) open on one side upward 7.1) enter the open ridge groove (14) at the same time. At the same time, during insertion of the weft, the needle-shaped guide (11) for the effect yarn (2) is moved in the vertical direction and moved in the weft direction (12), and the shed forming element (4) and the heel device (10, 7, 7.1) is moved in the plane between the positions. The guide (11) is moved up and down in association with the drive unit that drives the shed forming element (4) and the guide (11) by the electric movement drive unit (6).

Description

  The present invention relates to a method for producing a woven fabric having an auxiliary weft effect and a loom.

  In a loom, it is known in the prior art that auxiliary yarns running in the warp direction are involved in the weaving so that a certain auxiliary weft effect is achieved. For this purpose, the effect yarn is moved to a different position for each movement cycle of the loom in the weft direction before weft insertion.

  This type of loom represents, for example, a device according to EP 0957191. This device is characterized by means for moving the additional warp. This means is in a curved bar arranged on a girder arranged downstream from the ridge. The disadvantage of this arrangement is that the insertion of the weft is hindered by the curved bar in the front of the heel. It seems impossible to adopt it in an air jet loom incorporating a groove for guiding the weft thread to be inserted into the kite, and there is a limitation due to this arrangement even when a gripper element is used.

  US 3796234 and US 20090272455 A1 also describe an apparatus for moving additional warps or effect yarns which are likewise arranged in front of a heel near the weft where the wefts are struck.

  EP 263392 likewise describes a loom equipped with a device for moving auxiliary warps—so-called diagonal threads—in the weft direction. In one embodiment, this apparatus is arranged in a slanted yarn moving tube (a slanted yarn moving coil) that transports a slanted yarn by a screw-shaped groove in the weft direction by one claw gap for each movement period of the loom. is there. In all embodiments of EP 263392, the movement device is arranged between the warp or diagonal yarn feeder and the various shed forming elements, whereby the warp or diagonal yarn forms the shed. Therefore, it is actuated up and down (deflection).

  EP 263392 further describes a scissor device and its teeth, in which a large amount of warp and diagonal threads can be taken in and out. For this entry / exit, the entire amount of all warps and diagonal threads is the target.

  CH27499 shows a device for moving the warp in the weft direction, which is arranged between the heel and the shed forming element. However, with this device, auxiliary yarns or effect yarns can be moved in the weft direction-and ligated with the weft yarns-together with the respective effect yarns, warp yarns that are all drawn into the same gap of the loom's kite. Only through.

  Finally, US 4,429,722 describes an apparatus for moving the warp in the weft direction, which is arranged between the heel and the shed forming element. There is a heel gap that opens upward, and the effect yarn is taken in and out of the gap. This device can only be used with a limited travel distance for thick effect yarns.

  An object of the present invention is to create a method of manufacturing a woven fabric having an auxiliary weft effect and a loom, in which the effect yarn supplied along with the warp yarns depends on the weaving pattern for each movement cycle of the loom. And moved greatly in the weft direction across many warps drawn into different gaps in the reeds, and the additional mechanical elements between the reeds and the wefts interfere with the weft insertion It can be ligated with the weft without any trouble. This arrangement is suitable for air jet looms and gripper looms and enables high weaving capabilities. This use is possible even in the case of a fabric having a warp density in a normal garment fabric field or a lattice-like fabric having a low warp density.

  This problem is solved by a method and a loom according to the independent claims.

  The process for producing a woven fabric with an auxiliary weft effect according to the invention is based on the continuous movement cycle of the loom. In this case, the movement cycle consists of the following process steps already known in the art.

-Formation of shed limited by warp by hook forming element-Positioning of effect yarn above weft yarn to be inserted-Movement in weft direction by moving distance determined for each movement cycle of effect yarn- Positioning below the weft to be inserted next to the effect yarn-Inserting the weft into the weft in the weft direction-Putting the weft into the weave by the scissor device that performs the striking movement at the stop position In this method, when the effect yarn is positioned upward in the vertical direction of the weft thread to be inserted, the effect thread exits from the gap of the hook with one side open, and then wefts. When positioning the weft yarn downward, another gap is entered.

  The gap between the ridges formed in this way occurs when the teeth are bundled together in one bundle (Rietbund) at the lower end, and there is no upper bundle (Rietbund) provided in a normal fold. .

  In order to ligate with the weft for inserting the effect yarn, the effect yarn must also be alternately brought into the upper and lower hooks during the weft insertion.

  The positioning is such that the guide moves with the effect thread through one of the shed-forming elements, eg Webschaft, and by one of the shed-forming drive of the shed-forming machine. That is, it is performed by being driven vertically up and down. For this purpose, the guide, the movement device, and the movement drive device are combined with one of the shed forming elements.

  In order to realize the movement transition according to the above-described method, according to the present invention, the guide of the effect yarn includes a plurality of shed forming elements and a final position of the striking movement located near the shed forming elements. Are moved in the warp direction and the weft direction in a plane arranged between.

  According to this method, the desired auxiliary weft effect can be achieved without hindering the weft insertion by the mechanical element in the region before the heel.

  By taking in and out the effect yarn, in the method according to the invention, the effect yarn is inserted in the weft direction at a position above the weft yarn to be inserted and over a number of heel gaps and thereby beyond one or more warps. It is possible to move on.

  In one preferred embodiment of the present invention, the guide has a round, elliptical or slit-shaped thread hole, and the effect thread is passed through the hole. The various shapes of the holes allow the effect yarns used to be adapted to various cross sections.

  Furthermore, it is particularly advantageous if the guide is formed with a tip formed in the lower part of the thread hole in the shape of a wedge or cone with respect to the warp. According to the present invention, the guide pushes the basic warp left and right during the up and down motion so that the leading end forms a path through which the effect yarn passes when the adjacent warp enters the crevice gap each time. Is promoted. Thereby, it is avoided that the effect yarn crosses the adjacent warp yarn in an unwilling manner when entering and leaving.

  Furthermore, an advantageous embodiment of the method takes into account that a plurality of effect yarns are moved and positioned simultaneously.

  It may be significant for a particular weave form of the fabric that the effect yarn is not positioned below the weft yarn to be inserted during one or more movement cycles. At this time, there is no connection between the effect yarn and the weft yarn subsequently inserted. The effect yarn is present on the weft thread that has been inserted in the finished fabric.

  Variations from the method according to the invention are also possible. In that case, the plurality of effect yarns are moved in opposite directions and / or at different moving distances in the weft direction. Thereby, a more complicated auxiliary weft effect can also be achieved.

  The loom according to the invention has any kind of shed forming drive device known per se for driving the shed forming element according to the independent claims of the apparatus, and by its vertical movement A shed that is limited by the warp is formed. Furthermore, there are devices for inserting wefts into the shed in the weft direction and heel devices for hitting the weft into the weave. Finally, this loom has a moving drive unit that drives the moving device in the weft direction, and the moving device is provided with at least one guide, whereby the effect yarn is moved in the weft direction, Can be positioned. At this time, various (different) moving distances of the weft effect yarn can be determined in advance for various (different) motion cycles of the loom via the movement drive unit. Of course, a group of guides for a plurality of effect yarns may also be attached to one moving device, so that they can be moved in the weft direction in synchronism with each other.

  Generally, the effect yarn in question here basically runs in the warp direction in the loom and is drawn out from the yarn storage device on the back side of the loom.

  The warp direction indicates the flow of warp from the back of the loom to the front regardless of where the respective yarns are located above and below.

  In the weaving machine of the loom according to the present invention, the toothed teeth already described in the method are attached so as to form a gap of the eyelids opened upward on one side. The effect yarn can be taken in and out of the gap.

  Another feature according to the invention is that the guide is between a plurality of shed forming elements and one of the two final positions of the lashing movement of the ridges located closer to the shed forming elements. It is that it is arranged in a plane located (expanded). This is generally the position of the toothed saddle device during weft insertion.

  Due to the arrangement of the above-mentioned guide combined with the gap of the reed open upward on one side, using the weaving machine according to the invention, weaving with the most various auxiliary weft effects is possible between the reed and the weave. This is possible without interfering with weft insertion by mechanical elements in the area. In this part, the guide of the effect yarn does not enter the shed formed by the warp for weft insertion.

  When weaving with an auxiliary weft effect using the weaving machine according to the present invention, it is not necessary to consider the weft insertion element in the design of the movement of the guide, so that a high weaving capacity can be achieved. Other configurations result in further advantageous embodiments.

  The guide is needle-shaped and has a thread hole.

  In a preferred embodiment, the one or more guides are secured to the needle bar at the ends. This needle rod constitutes a moving device together with, for example, a prism-shaped linear guide extending in the weft direction, and this moving device is fixed to the front surface of the rod as a moving driving portion together with a driving portion of the electric motor. This movement drive can be formed, for example, as a linear drive, and its stator is integrated in the frame of the cage or in a prism-shaped linear guide. However, other drive units can also be envisaged. For example, a drive unit with a movable spindle or a hydraulic or pneumatic drive unit, which can be controlled by the control device of the loom.

  The shed forming machine that drives the ridge may be a cam device, for example. In this case, a particularly advantageous time course of shed formation can be achieved by the twist between the eccentric gear for the basic weaving of the warp and the eccentric gear for the effect weaving, ie the vertical movement of the effect yarn.

  However, other common shed forming machines are also possible, for example dobby or jacquard looms. For example, a combination of a cam device for effect weaving and a jacquard machine for basic weaving can be considered. In addition, the moving device (for example, a needle guide and a linear guide extending in the weft direction) and an attached moving drive unit are housed in an auxiliary vertical linear guide in the loom so that the vertical movement of the effect yarn can be controlled via the jacquard machine. It is also possible to tie it to the string of the jacquard machine.

  The embodiment described above has the advantage that it is not necessary to use expensive auxiliary gears, drives or controls for driving the guides in the vertical direction. This is because an existing shed forming element or shed forming drive unit can be used.

  Another embodiment, of course, allows for the guide to be driven up and down by its own independent drive via one of the shed forming elements.

  In this way, in an advantageous manner, the movement transition can be designed to be freely programmable with respect to the time course and stroke of the guide from the upper heel to the lower heel.

  If the travel distance is small, it is also conceivable to drive the guide in the weft direction via one of the shed forming elements (i.e. with it). According to this, one or a plurality of movement drive units drive the movement device not directly but via a shed forming device, for example a heel. A moving device is arranged with guide elements on the front side of the bag.

  In this case, the moving device has a plurality of elements, which can be used to position the guide in the weft direction during installation and adjustment of the loom at a time.

  Within the framework of the invention, a further advantageous embodiment results from the fact that a plurality of guides are assigned to one movement device and one movement drive. It is also possible that there are a plurality of guide groups, each of which is assigned one moving device and one moving drive unit. Furthermore, each of these groups, or each system comprised of a plurality of such groups, may each be coupled with another one of a plurality of shed-forming elements.

  This kind of configuration provides the advantageous possibility of driving the mobile device and the group or system of mobile drive units in opposite directions in the weft direction and / or with different large travel distances. As a result, a symmetrical auxiliary weft effect can be achieved, for example as a mirror image.

Since the guide is in the area between the final position behind the hook teeth near the hook forming element and the hook forming element, the effect yarn drawn from the yarn storage device generally located on the back side of the loom Naturally, it is supplied to the guide via the shed forming element by the turning device. In the process between the yarn accumulating device and the direction changing device, one of general warp monitoring devices (monitoring device at the time of yarn breakage) can also be arranged.

In the case of a large moving distance that exceeds a large number of gaps in the reed, the point where each effect yarn is ligated with the weft thread that was inserted last and the weave, and the actual position of the guide of the effect yarn moved in the weft direction In between, there is a flow of yarn that intersects with the upper shed warp at a certain angle. This intersecting, or diagonal flow, can lead to the fact that when the effect yarn enters the crease gap, it remains stuck at the upper end of one of the ridges that delimits the crease gap.

  In order to avoid this, one advantageous embodiment of the present invention has a cross-section in which the upper end of the toothed teeth is tapered in the warp direction (for example in a wedge shape) at the exit of the eyelid gap. I am considering. The tapered tip is near or on the ridge of the toothed tooth facing the guide.

  The risk that the effect thread remains stuck to the toothed hook is further reduced by making the distance between the upper end of the toothed hook and the tip of the guide as small as possible in the warp direction. This spacing is selected to be less than 3 mm in one advantageous embodiment. A spacing of less than 2 mm is preferred.

1 is a schematic view of one embodiment of a loom according to the present invention as seen in the weft direction. It is the detailed figure which looked at X part of Drawing 1a in the latitude direction and the longitude direction. It is a top view of FIG. It is a figure of a kinematic device, a shed forming device, and a movement course of a guide. It is a figure which shows a weave pattern. It is a figure which shows a weave pattern. It is a figure which shows a weave pattern. It is a figure which shows a weave pattern. FIG. 2 is a view similar to FIG. 1 for an embodiment having an independent drive for the shed forming element. FIG. 6 is a plan view of the embodiment of FIG. 5 with the drive of the moving device in the weft direction via the shed forming element. It is a figure which shows arrangement | positioning of two groups of a guide and a moving apparatus. FIG. 8 is a plan view of the arrangement of FIG. 7 for driving a moving device through various shed forming elements. It is a figure which shows the weave pattern which can be manufactured with the structure according to FIG.7 and FIG.8. It is a figure which shows the weave pattern which can be manufactured with the structure according to FIG.7 and FIG.8. It is a figure which shows the weave pattern which can be manufactured with the structure according to FIG.7 and FIG.8. It is a figure which shows the weave pattern which can be manufactured with the structure according to FIG.7 and FIG.8.

  In the following, advantageous embodiments of the invention are described in detail with reference to the drawings.

  FIGS. 1 a, 1 b and 2 show in partial view a loom having a shed forming drive 9 for driving the shed forming element 4. By the vertical movement of this element, the hooks 1.1 and 1.2 delimited by the warp 1 are formed. The well-forming drive 9 known to those skilled in the art is composed of, for example, a number of levers and rods, and is shown below the well-forming element 4 and outside the machine frame. The drive motion of the notch forming machine is transmitted to the notch forming element 4. However, any other electromechanical, hydraulic or pneumatic device can also be used as the shed forming drive unit 9.

  In this embodiment, the shed forming element 4 is constituted by a known ridge having a slit, and the warp 1 is guided through a hole in the slit. Furthermore, there are devices known to those skilled in the art for weft insertion of the weft 3 in the weft direction 12 into the sheds 1.1, 1.2. These may be a mechanical weft insertion device using a kite or a glifer, or a pneumatic weft insertion device. In the example of FIG. 2, a device with a glider is shown, which is inserted in a well-known manner into the shed from both sides of the loom via a gear not shown and two drive gears. The In this embodiment, the weft 3 is sent from the weft bobbin to one of the two grifers via the bobbin and the color selector 19 and is transferred to the other grifer in the center of the machine. Of course, the use of different wefts for different movement cycles is also conceivable. Selection and supply of the weft to the glifer is performed by, for example, the color selector 19. This type of embodiment is known to those skilled in the art for air jet looms and gripper looms.

  Furthermore, there are scissors devices 10, 7, 7.1 for hitting the weft thread 3 into the weave 13, which comprises a scissor support 10 having a scissors 7 and a scissor flange (Rietbund) 7.1. Yes. The hooks 7 are formed between the receptacles that are open on one side, the so-called gap 14 of the hooks. As a result, the yarn passing through the loom from the rear to the front in the direction of the warp 1 is Can be led from the toothed teeth 7 in the weft direction 12.

  It is well known to those skilled in the art that the latitude direction 12 means a direction running parallel to two opposite latitude directions.

  The scissors 7 are fixed to the scissors support 10 via a scissor flange (Rietbund) 7.1 and, together with this, perform striking movements 15-15.1 during each motion cycle of the loom. Finally, in the present embodiment according to FIG. 1 and FIG. 2, the moving device 5 with prism guide is attached to the frame of the bag, and according to FIG. 2, three guides 11 are attached to these devices. Thus, the three effect yarns 2 can be moved by the distance A in the weft direction 12.

  Various movement distances A of the effect yarn 2 for various movement cycles of the loom can be set in advance by the movement driving unit 6 that drives the movement device 5. What is significant is the use of an electric motor-type linear drive device that can be freely programmed as the movement drive unit 6. Thereby, the movement distance A can be freely programmed for each movement cycle of the loom via the control device 8 and the movement drive unit 6 of the loom.

  In this embodiment, the guide 11, the moving device 5, and the moving drive unit 6 are connected to one of the shed forming elements 4 because the effect yarn can be positioned in the vertical direction above or below the weft 3 to be inserted. It is moved up and down along with this. This shed forming element 4 can in this case be driven by one of the shed forming drive parts 9 of the shed forming machine not shown. Instead of the prism-guided moving device 5, other types of mechanical linear guide elements can of course be considered.

  From FIG. 1 it is further seen that the guide 11 is between the mouth forming element 4 and a position close to the mouth forming element 4 of the two final positions of the hammering movement 15-15. It can be seen that it can move in the plane. That is, this is the position of the toothed teeth 7 at the time of weft insertion.

  With this arrangement, in the process flow according to the invention, the effect yarn 2 can enter or leave the heel gap 14 and have a different, widely determined position for each loom cycle. It can be seen that the direction 12 can be preset.

  In this case, more heel gaps 14 can be covered by the effect yarn 2 moved in the weft direction 12 from one motion cycle to the next motion cycle.

  Since there is no mechanical element in the region between the eyelash 7 and the weave 13 for guiding the effect yarn 2, weft insertion can be performed without any trouble. When the weft insertion is performed by air pressure, it is quite a problem to form the front side of the toothed teeth 7 in a groove shape by a well-known method in order to allow the weft 3 to be conveyed through the groove by an air jet. Absent.

  Another aspect of the embodiment of the present invention is that the guide 11 and the effect yarn 2 are inserted during weft insertion using a mechanical or electronic binding element (Bindungspatrone) for each movement cycle of the loom. It is possible to set in advance whether the weft 3 is above (upper heel) or below (lower heel). In this case, the mechanical texture may be present in the appropriate selection of the eccentric gear of the drive mechanism--for example the cam device--or in the punch card of a card-controlled dobby loom. Modern shed forming devices are electronically made as is well known and controlled via pattern data stored in the loom controller 8. With the individual travel distances A of the effect yarns 2 pre-programmed in the control device 8 performed during the exchange of the effect yarns 2 from the upper heel to the lower heel, the most different weave pattern of the auxiliary weft effect is obtained. . It is known to those skilled in the art to store further information about each loom cycle in such mechanical or electronic coupling elements. This includes, for example, selection and presentation of one or more wefts using a so-called color selector 19, weft density, warp tension, and loom speed. A special effect is also possible by the fact that the weft 3 is not selected and is not inserted in one movement cycle (see Figure 4.1 of the weave pattern).

  Further, FIGS. 1 a and 2 show that the effect yarn 2 is drawn from the yarn storage device 16 at the back side of the loom and supplied to the guide 11 by the direction changing device 17 via the shed forming element 4. In order to maintain yarn tension, an elastic element can optionally be placed in the yarn flow process. In this region, the arrangement of a weft monitoring device (not shown) that stops the loom when the effect yarn 2 is broken is also significant.

  1a and 1b show a guide 11 having the shape of a needle with a thread hole 18 and a needle tip. One or more of the needles are fixed to the needle bar at the end. This needle rod forms a moving device 5 together with the linear guide.

  The needle-shaped guides 11 to 11.2 further have a thread hole having a round shape 18, an elliptical shape 18.2, or a slit-shaped opening (not shown). Is guided.

  Due to the different shapes of the openings, it can be adapted to different cross sections of the effect yarn 2 used. The fibers used may be fine fibers or thick fibers or filament yarns in the range of 11 tex to 10,000 tex. The use of conductive yarns and optical fibers as the effect yarns 2 is also conceivable, whereby further abundant effects using this type of fibers can be achieved.

  In FIG. 1 b it can be seen that the needle-shaped guide 11 extends in a wedge shape in the region of the tip facing the warp 1. However, conical tips are also conceivable. This conical or tapered portion begins at the distance C of the thread hole 18.

  Also in FIG. 1b, the upper end of the heel 7 is at a distance D from the warp of the upper heel 1.1 at the position where the guide 11 in the vertical direction intersects the warp of the upper heel 1.1 during its vertical movement. It can also be seen that

  Finally, it can be seen that there is a distance E between the upper end of the toothed tooth 7 and the motion plane on which the guide 11 is moved—not shown to scale—in the longitudinal direction.

  The distances C, D and E depend on the warp density and the cross section of the effect yarn 2 used. In this embodiment, C is selected to be greater than or equal to D.

  The distance D allows the dimensions of the elements involved and the accuracy of the striking movement 15-15. 1 to be allowed without collision, in order to avoid the aforementioned catch when entering the heel gap 14 of the effect yarn 2 running diagonally. Should be as small as possible.

  In order to avoid this catch, it is also useful that the toothed teeth 7 have a material cross-section that tapers in the warp direction at the end at the exit of the upper heel gap 14 as detailed view X shows.

  FIG. 3 is a graphical representation of the movement of some elements of a loom implemented with the method according to the invention. Shown are two locomotion cycles of the loom over an angle Y of 720 degrees in total of the loom spindle.

  Curve F shows the strokes (vertical movements) of two oppositely oriented hook forming elements 4, each of which moves a number of warps from upper hook 1.1 to lower hook 1.2. Weft insertion which is not displayed in the graph is performed at the stage where the mouths 1.1 and 1.2 are open. A curve H indicates the stroke of the guide 11. This is also a stroke (up-and-down movement stroke) performed by the shed forming element 4, and the guide 11 is moved in the vertical direction according to this stroke. The shed forming machine and the shed forming drive 9 are designed for each shed forming element 4 so that the vertical position in the loom and the size of the strokes H to F can be adjusted individually for each shed forming element 4. Has been known for some time. As mentioned above, in certain embodiments of the shed former, the temporal transition between movements F and H and the temporal transition relative to loom movement Y can be individually shifted (shifted) in the flow direction by the operator. . 15-15. 1 shows the striking movements of the saddle devices 10, 7, 7.1 which are respectively carried out between the two weft insertions.

  Figures 4.1 to 4.4 show various woven patterns having an auxiliary weft effect. These can be suitably woven in the embodiment of the loom according to the invention according to FIGS.

  FIG. 5 shows a loom with all the features of FIGS. 1 and 2, in which the device for moving the guide 11 vertically is formed by the shed-forming element 4, which is unique. It is driven by the independent drive unit 9.5. For this purpose, any electromechanical, pneumatic or hydraulic drive known to those skilled in the art can be used.

  In the display of FIG. 5, the prism guide as a component of the moving device 5 attached on the frame of the bag shown in FIG. 1 is further missing. This is because, in this figure, the moving device 5 is not moved directly by the linear drive device, but is moved in the weft direction via a shed-forming element, for example a heel.

  FIG. 6 shows the embodiment according to FIG. 5 in a plan view, in which it is seen that the moving device 5 is driven in the weft direction 12 by the movement drive 6.6 via the shed forming element 4. be able to. In this case, the movement drive unit 6.6 is accommodated (supported) in the loom frame. Mouth opening forming element 4-in the case of this embodiment, the mushroom-is moved in the weft direction together with the moving device 5 mounted thereon.

  7 and 8 show an embodiment according to FIG. 6, but the guide is 11 and 11.7, the moving device is 5 and 5.7, the moving drive is 6.6 and 6.7. It comprises groups, each of which is associated with another element of the mouth-forming element 4. The plane on which each group of guides moves is arranged back and forth in the warp direction, so that each guide 11 of one group moves in the weft direction 12 without being disturbed by the other group of guides 11.7. can do.

  Many of this type of group can also be associated with the same mouth-opening element 4 for one system of guides 11, 11.7 so that all guides 11 of that system can be moved up and down synchronously. .

  Many of these types of systems may eventually be combined with different mouth-opening elements 4 so that they can be moved up and down independently of each other.

  Through suitable conditions for the movement drives 6 to 6.7, this kind of arrangement also gives different movement distances A to B for the group of guides or systems 11, 11.7.

  The distance E is in this case related to the foremost motion plane located closest to the toothed teeth 7.

  The group of guides 11, 11.7, however, is that all guides 11, 11.7 are between the ostium forming element 4 and the final position behind the striking movement 15-15. 1 (not shown). You may arrange | position so that it may mutually shift in the weft direction so that it may move (motion) within the same plane.

  Depending on the possibility of driving these groups in the direction opposite to each other in the weft direction or with different travel distances A and B, as illustrated in FIGS. A symmetrical or asymmetrical auxiliary weft effect or a stunning woven pattern can be obtained.

Claims (20)

A process for producing a fabric (0) having an auxiliary weft effect by means of a continuous movement cycle of a loom, comprising the following process steps:
-Formation of the shed (1.1, 1.2) limited by the warp (1) by the shed forming element (4)-The effect of running in the loom basically in the warp direction and guided by the guide (11) Positioning the thread (2) above the weft thread (3) to be inserted and above the shed (1.1, 1.2)-guide formed in a needle shape having one thread hole (18) Movement of the effect yarn (2) in the weft direction (12) by the movement distance (A) determined for each movement cycle of the effect yarn (2) according to (11)-Effect yarn (2) below the weft yarn (3) to be inserted Positioning of the weft thread (3) in the weft opening (1.1, 1.2)-a scissor device (10) that performs a striking motion (15, 15.1) with two stop positions , 7, 7.1) are provided for weaving the weft (3) to the weave (13),
The effect yarn (2) is used when the weft thread (3) to be inserted is positioned above the heel (1.1, 1.2) and the hook teeth of the heel device (10, 7, 7.1). When positioning the weft thread (3) below, which is formed by (7) and exits from the heel gap (14) open on one side upwards, the other is the same The guide (11) is driven up and down in the direction of movement of the mouth forming element (4) through the mouth forming element (4),
The thread hole (18) of the guide (11) includes a shed forming element (4) that drives the guide (11) up and down, and a striking motion (15, near the shed forming element (4)). 15.1) is moved in the vertical direction and the weft direction (12) in the plane arranged between the final position and
The guide (11) is moved with respect to the shed forming element (4) for driving the guide (11) up and down when the effect yarn (2) is moved in the weft direction (12),
The moving distance (A) is determined at each movement period of the loom via the loom control device (8) capable of storing electronically generated pattern data and via the electric motor moving drive (6). Is programmed freely,
Before entering the heel gap (14), the effect thread (2) is moved in the weft direction (12) through the plurality of heel gaps (14) opened upward, and the heel gap (14) ) Has one or more warps (1) drawn into it,
When moving up and down, the guide (11) causes the warp yarn (1) to form a path each time the effect yarn (2) penetrates when the adjacent warp yarn (1) enters the heel gap (14). A method characterized by spreading it to the left and right. The plane in which the thread hole (18) of the guide (11) is moved is arranged at an interval (E) of less than 3 mm, preferably less than 2 mm when viewed from the upper end of the toothed hook (7) in the warp direction. The method of claim 1, characterized in that: 3. The method according to claim 1, wherein the plurality of effect yarns (2) are moved and positioned simultaneously. 4. The method according to claim 1, wherein the effect yarn (2) is not positioned below the weft yarn (3) to be inserted during one or more movement cycles. 5. A plurality of effect yarns (2) are moved in opposite directions in the weft direction (12) and / or at different travel distances (A, B). The method described. 5. The method according to claim 1, wherein the weft yarn (3) is not selected and is not inserted in one or more movement cycles. 5. The method according to claim 1, wherein the position of the effect yarn (2) in the weft direction (12) is not changed in one or a plurality of movement cycles. A plurality of shed forming elements (4);
A plurality of shed formations in which the shed forming element (4) can be driven in the vertical direction so that the shed (1.1, 1.2) limited by the warp (1) can be formed A drive unit (9);
A device for inserting the weft (3) in the weft direction (12) into the shed (1.1, 1.2);
A scissor device (10, 7, 7.1) for striking the weft (3) against the weave (13) by a striking movement (15, 15.1) having two final positions;
A moving drive (6) that drives the moving device (5) in the weft direction (12) and can be guided linearly mechanically using the elements;
A guide (11) having a thread hole (18) for guiding the effect thread (2) and formed in a needle shape;
Via which the guide (11) can be driven up and down by one of the mouth formation drive (9);
A toothed hook (7) which is attached to the hooking device (10, 7, 7.1) and forms a gap (14) of the hook opened on one side upwards, into which the effect yarn (2) can be taken in and out When,
With
Via the movement drive unit (6), the moving distance (A) in the weft direction (12) of the effect yarn (2) can be set for each movement cycle of the loom,
The guide (11) is attached to the moving device (5) so as to be linearly movable,
The moving device (5) is attached to the mouth forming element (4), and can move up and down together with the mouth forming element, and the guide (11) through the mouth forming element. ) Can be driven up and down,
The thread hole (18) of the guide (11) has a hook forming element (4) for driving the guide (11) up and down and a striking movement (15, 15) in the vicinity of the hook forming element (4). .1) is movable in a plane arranged between the final position and
The loom has a control device (8) capable of storing electronically created pattern data,
The movement drive unit (6) is formed of an electric motor,
The control device (8) is coupled to the movement drive unit (6) so as to transmit a signal, and within the control device (8), the movement distance (A) for each motion cycle can be freely programmed. A characteristic loom. The hook teeth (7) have a cross section that tapers in the warp direction toward the end at the exit of the gap (14) at the upper side of the hook teeth, and the tapered tip forms a hook opening. Loom according to claim 8, characterized in that it is near or on the edge of the toothed tooth (7) facing the element (4). The plane through which the thread hole (18) of the guide (11) can move is the warp direction of the upper heel between the weave (13) and the guide (11) in the warp direction as viewed from the upper end of the heel (7). The effect thread (2) diagonally intersecting with (1.1) is arranged at such a small distance (E) that it is avoided that the effect thread (2) catches on the upper end of the toothed hook (7) when entering the gap (14) of the hook. The loom according to claim 8 or 9, wherein the loom is provided. The plane on which the thread hole (18) of the guide (11) can move is arranged at an interval (E) of less than 3 mm, preferably less than 2 mm when viewed from the upper end of the toothed hook (7) in the warp direction. The loom according to any one of claims 8 to 10. The guide (11) has an interval between two adjacent toothed teeth (7) forming a gap (14) of the eyelid opening upward in the region of the thread hole (18) in the weft direction (12). The loom according to any one of claims 8 to 11, wherein the loom has a wider width. Said guide (11) has a conical or wedge-shaped tip towards warp (1), the conical or tapered portion starting at a distance (C) below the thread hole (18). The loom according to any one of claims 8 to 12, characterized by the above. The moving device (5) and the movement drive unit (6) are arranged on the frame of the shed forming element (4) formed as a ridge, which element is the shed forming drive of the shed forming machine. The loom according to any one of claims 8 to 13, characterized in that it can be driven up and down by one of the sections (9). The moving device (5) and the moving drive (6) are arranged on the frame of the shed forming element (4) which is formed as a ridge, which element has its own independent drive (9. The loom according to any one of claims 8 to 13, wherein the loom can be driven up and down by 5). 16. A loom according to any one of claims 8 to 15, characterized in that a plurality of guides (11) are attached to one moving device (5). One or a plurality of guides (11) are fixed to the needle hook at the end, and the needle hooks together with a linear guide extending in the weft direction (12) form a moving device (5) The loom according to claim 13 or 14, characterized in that the moving device (5) is fixed to the front surface of the reed together with the moving drive (6). There are a plurality of groups of guides (11, 11.7), each assigned one moving device (5, 5.7) and one moving drive (6, 6.6, 6.7). The loom according to any one of claims 8 to 17, wherein the loom is provided. 19. The system according to claim 18, characterized in that each of the groups or each system of a plurality of groups of this type is combined with one other element of a plurality of shed-forming elements (4). Loom. Loom according to claim 18 or 19, characterized in that the groups can be driven in the weft direction (12) in opposite directions and / or at different travel distances (A, B).

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