JP2011246867A - Tension-applying device, and method of reapplying tension to warp of warp layer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow reapplication of improved tension to warps of a warp layer which can be mechanically easily carried out, and is highly reliable, accurate, flexible in application, and high in cost efficiency of action.SOLUTION: A tension-applying device (S) has two supporting members (S-10, S-20). The supporting members (S-10, S-20) can vary a mutual relative distance through a positioning mechanism (S-30), are detachably connected to a common guide rail (FS) through guiding elements (S-11, S-11', S-21 ), and can be moved along the guide rail. The supporting members (S-10, S-20) are provided with lock elements (S-12, S-22) for alternately fixing the supporting members (S-10, S-20) to suitable positions on the guide rail (FS). A tension-applying unit (S-40) is movable along the guide rail (FS) by the support of the positioning mechanism (S-30).

Description

  The present invention relates to the field of weaving technology, and in particular, a tension applying device for re-applying tension to the warp of the warp layer according to claim 1, and the tension applying device according to claim 9 and the tension applying frame according to claim 9. The present invention relates to a combination, a pulling device according to claim 12 comprising a tension applying device, and a method for re-tensioning the warp yarns of the warp layer according to claim 13.

  Before a warp and weft can be combined to create a fabric or material on a loom, these warps must be passed through a loom harness in a specific order. The elements of a loom harness typically include a heel frame, a heel, warp stop-motion vanes and a heel. The threading means usually passes each warp wound around the warp beam at the required length through the eyes of the warp frame stop vane eye, the eye of the eyelet, and the gap between the two teeth of the eyelid. The end of the warped yarn that has passed through will jump out of the kite. The wrinkles are assigned to a specific wrinkle frame, that is, introduced into one such frame to define the pattern of the fabric.

  Typically, hundreds to thousands of warps are wound in parallel on a warp beam over a specific width, so this process is repeated as many times as necessary until the warp is completely drawn through the loom harness. Must be repeated. This process has been performed manually until now, and is still performed manually as before, but some parts of the process are executed (semi-automatic pulling machine) or the entire procedure is performed. Various designs of machines that perform automatically (automatic pulling machine) are also available.

  While semi-automatic pullers are relatively cost effective compared to automatic pullers, these include one operator who is 100% engaged in the machine and partially performing the manual pulling process. There is a big demerit that must be done. This method can only improve productivity slightly compared to manual pulling, and has a relatively high defect rate.

  The automatic drawing machine is a known technique, and various embodiments are commercially available. These utilize an independent control device in all the steps necessary to pass the warp through the loom harness. The operator's role is limited to preparing and monitoring operational procedures and functions and to supplying and removing raw materials. In this method, productivity can be improved several times compared to manual pulling, and the defect rate can be greatly reduced.

  In principle, the automatic puller consists of two main units that can move relative to each other. One unit includes a warp preparation device (warp layer tension applying unit), and the other unit includes a pulling process device and a loom harness adjusting device (threading unit). During the drawing process, the drawing unit and the tension applying unit relatively move laterally from the beginning to the end of the warp layer as the drawing process proceeds.

International Publication No. 02/101132 Pamphlet International Publication No. 92/07127 Pamphlet Swiss Patent No. 479735

  The automatic threading machine according to the above aspect always includes a tension applying device (yarn frame or tension applying frame) to which a warp layer to be processed is attached. From this warp layer, individual warps are picked up (separated) in sequence and passed through the loom harness element by the pulling unit. In order to separate individual warp yarns without abnormality, it is necessary to apply a specific initial tension to the warp yarns on the yarn frame. This tension depends on the material and the quality of the yarn. A large force is generated for the entire warp width and these change during the drawing process. Under certain circumstances, an operator needs to intervene to readjust the secretary strength. In order to avoid these problems, as seen in WO 02/101132, there is a solution for applying tension (partial tensioning) to only a small part of the warp yarn, that is, the part located immediately before the separation point. Exists. This measure certainly reduces the overall force on the yarn frame. However, in these solutions, the partial tensioning is relaxed each time the thread frame moves relative to the threading unit, and the tension must be reapplied to the thread after this movement has taken place. There are disadvantages. The necessary interaction between the individual components for this process is usually a movement procedure and drive that can only be realized in a complex and costly manner, but nevertheless operates accurately and without anomalies A moving procedure and drive that must be done is required.

  The two main units, which can be moved relative to each other, take the form of a heavy body and the associated great completion causes a further set of problems, but their weight also depends on the specific application. However, since the relative threading position with respect to the position of the warp to be separated continuously changes during the threading process, it is essential that at least one of the two main units perform a periodic motion. In order to alleviate this problem, for example, in WO 92/07127, there is a solution in which a unit to be moved is divided into a light part and a heavy part, and the light part is made independent of the heavy part and moved with higher accuracy. Has been found.

  Other solutions for the relative movement of the pulling unit relative to the tensioning unit are described, for example, in CH 479735. In such a solution, high precision is required for positioning of the pulling unit and tensioning unit, for example performed on rails or flat steel plates, but this is therefore expensive and changes the material flow. When doing so, flexibility will result in a low level.

  The object of the present invention is to eliminate the listed disadvantages and to improve the warp of the warp layer, which can be easily performed mechanically, is reliable, accurate, flexible in application, and cost-effective to operate. It is possible to reapply the applied tension.

  This object is achieved by a tensioning device according to claim 1.

  An important feature of the tensioning device according to the invention is first that it can be moved independently and independently along the guide rail by the coordinated operation of the positioning mechanism and the locking element. For this purpose, the positioning mechanism need only have a single drive, which contributes to a significant reduction in weight. This autonomous movement and reduced weight both contribute to enabling a particularly flexible arrangement of the device. Since the reliability and accuracy of the device are also determined by the guide rail, only a simple requirement is imposed on the floor quality where the device is located. In particular, the rail system or steel plate is no longer needed, thus reducing costs.

  Advantageous aspects of embodiments of the tensioning device according to the invention are specified in the dependent claims 2-8.

  In a preferred aspect of the embodiment, the tension applying unit has three rod-like members aligned substantially parallel to each other, and of these rod-like members, the first and second rod-like members are at least one warp stop. Each comprising a tool, the third bar member can move between the first and second bar members in order to catch the warp and reapply tension. By such a tension applying unit, in principle, a desired tension can be reapplied. In traversing the tensioning unit, the third bar is returned to a position away from the other two bars in order to accommodate a further part of the warp layer in the intermediate space. Therefore, in order to guide this further part into this space and to avoid any jamming between the tensioning unit and the warp layer, at least one free end of the bar-like member is tapered. It is preferable that Accordingly, it is preferable that the third rod-shaped member can be moved via the eccentric mechanism in order to ensure a wide range of adjustments and as simple and space-saving driving as possible.

  In a further preferred aspect of the embodiment, the locking elements have a clamping mechanism or a latching mechanism so that the support member is in a suitable position on the guide rail, in particular simply, quickly and safely. It can be fixed. Such a mechanism can be realized, for example, by an electric motor or by an actuator operable electromagnetically. On the other hand, a positioning mechanism for the distance between the support members can be realized in a particularly simple and space-saving manner, and a spindle drive mechanism (spindle drive) which enables the positioning of the tensioning unit with sufficient accuracy. ).

  If the support member is mounted on a movable chassis, a particularly flexible arrangement of the tensioning device is ensured. In particular, devices mounted in this way can operate on a plurality of tensioning frames, thereby eliminating the need to localize the tensioning device on each tensioning frame. Therefore, it is preferable that one of the two support members is fixedly connected to the movable chassis, and the chassis moves together with the support members. Along with this, a short chassis is sufficient as a support base.

  The above object can also be achieved by a combination of the tension applying device and the tension applying frame according to claim 9.

  An important feature of the combination according to the invention is that the guide rail is always accurately aligned with the tensioning frame in the method required to re-tension the warp.

  Preferred aspects of the combination embodiment according to the invention are specified by the dependent claims 10 and 11.

  Therefore, it is preferred that the guide rail is designed as part of the tensioning frame. This is because tension is applied to only a part of the warp and only simple requirements need to be set for adjusting the force of the tension applying frame. Since the tension applying frame is lighter as a whole, it can be mounted so as to be relatively movable with respect to the tension applying device. According to this means, when the tension applying unit itself is locked, the tension applying frame can be moved relative to the tension applying unit. Thereby, the tension applying unit can be moved continuously along the frame as a whole, and as a result, the processing time of the warp layer is shortened.

  The above-described object is achieved by a threading device according to claim 12 for passing the warp of the warp layer, wherein the tension applying device is provided.

  An important feature of the threading device according to the invention is that by this all the advantages of the tensioning unit according to the invention can be used simultaneously for separating and pulling warps. Therefore, in particular, the pulling device can also be mounted on the laterally movable chassis of the tension applying device. In the simplest case, the separation unit and the pulling unit are held on the tension applying unit of the tension applying device. It is moved together with the tension applying device.

  Advantageous further embodiments of the pulling device according to the invention are specified by the dependent claim 13.

  Therefore, it is preferable that the separation unit and / or the pulling unit be mounted on a support member that does not move the tension applying unit. According to this means, when the tension applying unit is not moved, the continuous further processing of the warp can be reliably performed. In this case, the support member is locked, and the other support member on which the separation unit and the pulling unit are mounted is tracked so as to recreate a gap space for moving the tension applying unit.

  Moreover, said objective is achieved also by the method of Claim 14 which re-applies tension | tensile_strength to the warp of a warp layer using the said tension | tensile_strength provision apparatus.

  Thus, an important feature of the method according to the invention is that the tensioning unit can be moved particularly simply along the warp by alternately locking the support members and subsequently activating the positioning mechanism of the tensioning unit. This means that complex driving and complex kinematics are no longer needed. This particularly improves the reliability and accuracy of this method.

  Advantageous further developments of the method according to the invention are specified by the dependent claims 15 and 16.

  In a preferred further development of the method, once the support member of the tensioning unit is fixed in place, the yarn layer is moved relative to the tensioning unit, so that the tensioning unit as a whole The continuous movement is performed along the warp layer. By this means, even a locked tensioning unit can be re-tensioned with further warps, which results in overall shortening of the processing time of the warp layer.

  In a more preferred further development of this method, the separating unit and the pulling unit are moved along the warp layer following the movement of the tensioning unit, and in each case the separated warp is pulled to the elements of the loom harness. Passed. Therefore, the advantages of the re-tensioning process according to the present invention can also be used for the separation and pulling of the warp yarns in the same way.

  According to the present invention, the conventional disadvantages can be eliminated, mechanically simple to perform, reliable, accurate, flexible in application, cost-effective to operate, improved tension of warp in the warp layer Can be re-granted.

Schematic diagram of a tensioning unit according to the invention on a tensioning frame The figure which shows the specific aspect of embodiment of the combination of a pulling unit and the tension | tensile_strengthening flame | frame by FIG. The figure which shows the tension | tensile_strength provision apparatus on the guide rail of the tension | tensile_strength provision frame by FIG. Front view of the tensioning device on the guide rail of the tensioning frame according to FIG. Side view of tensioning device on guide rail according to FIG.

  In the following, the present invention will be described in detail with reference to the accompanying drawings, using schematic diagrams and specific examples of embodiments. The same reference number is attached | subjected to the same component or the component provided with the same function.

  FIG. 1 shows a schematic view of a tensioning device S according to the invention on a tensioning frame R. The tension applying device includes a first support member S-10 that is movable along the guide rail FS via two guide elements S-11 and S-11 '. The first support member S-10 is designed in the form of a carrier frame here, and is held in the plane of the carrier frame for the positioning mechanism S-30 to move the tension applying unit S-40. . As shown here, the positioning mechanism S-30 can include, for example, a spindle drive mechanism, through which the tension applying unit S-40 moves in the plane of the carrier frame. Can move back and forth. Depending on performance and cost, it is naturally conceivable to select another suitable drive mechanism, for example a rack drive, a belt drive or other drive mechanism known to those skilled in the art. Here, the tension applying device S-40 is fixedly connected to the second support member S-20 and can similarly move along the guide rail FS via the guide element S-21. For better understanding, the carrier frame-shaped first support member S-10 is expressed as being interrupted at the point where it intersects with the rod-shaped second support member S-20. However, in this aspect of the embodiment, the carrier frame is a closed design. In this way, the entire tensioning device S can be moved along the frame in order to re-tension the warp yarns KF of the warp layer KFS that is tensioned on the tensioning frame R. Locking elements S-12 and S-22 are respectively provided to individually lock the first or second support member S-10 or S-20 on the guide rail FS. Here, the locking element S-12 can also be integrated with one of the guide elements S-11 or S-11 'of the first support member S-10. Or similarly to the lock element S-22 and the guide element S-21 of the second support member S-20 in this case, the second support member S-20 can be disposed on the front or back side in the viewing direction. Here, the locking elements S-12 and S-22 are designed as electromechanically actuable clamps.

  The tension applying frame R itself is not necessarily required, but can be mounted so as to be relatively movable with respect to the tension applying device S. For this, it may have guide elements R-10 and R-10 'that allow movement along the guide rail FS. Options for moving the tensioning device S, tensioning unit S-40, and tensioning frame R are indicated by individual double arrows.

  When the warp layer to be tensioned is tensioned on the frame R and the tensioning device S is connected to the guide rail FS, the tensioning procedure can be started. Here, clamp S-22 is initially closed and clamp S-12 is open. The tension applying unit S-40 operates to re-apply tension to a part of the warp layer KFS. Thereafter, the plurality of warp yarns KF that have been re-tensioned can be separated, for example, by suitable processing units and passed through the elements of the loom harness. The support member S-10 is moved along the warp layer KFS by the positioning mechanism S-30 until the processing of the portion of the warp layer KFS to which the tension is reapplied is completed for the next plurality of warp processing. Moved. Thereafter, the clamp S-22 is opened and the clamp S-12 is closed. Then, the positioning mechanism S-30 further moves the support member S-20 along the warp layer KFS until the tension applying unit S-40 covers the next part of the warp layer KFS. Immediately after this, the clamp S-22 is closed, the clamp S-12 is opened, the tension applying unit S-40 is activated, and the tension is reapplied to the next part of the warp layer KFS. At this time, the support member S-10 can be moved. During this time, since the support member S-10 remains relatively stationary with respect to the tension applying frame R, continuous processing of the warp yarns in which the tension is not reapplied even in the “reapplying tension” step by the support member S-10. The tension applying frame R can be moved in the opposite direction to the tension applying device S so as to be surely performed. The alternating lateral movement of the support members S-10 and S-20 can be continued until tension is reapplied to all warps KF of the warp layer KFS and / or until they are separated and pulled.

  Since the tension applying device S according to the present invention can move laterally on the guide rail FS, only a simple requirement is imposed on the floor quality of the place where the device S is placed. In particular, rail systems and steel plates are no longer necessary to support individual components. Further, the tension applying device S requires only a single drive system. This drive system requires only a few requirements regarding the movement accuracy of the components. In general, this means that for the tensioning device and the pulling device mounted on it, the costs incurred are relatively low and it is possible to reduce costs in preparation for installing this device in the field. In addition to this, there is substantially no interruption, and it is possible to provide a tensioning and pulling process in which the support member S-10 can be fed even during the separation of the warp. At the same time, the tension applying device according to the present invention is very light and can be arranged very flexibly. Since tension is always applied to only a part of the warp by the tension applying process as described above, only simple requirements are imposed on the force adjustment of the tension applying frame R.

  FIG. 2 shows a specific aspect of the embodiment of the combination of the pulling device E and the tensioning frame R according to FIG. The threading device E is here based on the tensioning device S of the present invention, further comprising a crossable chassis S-50, and the threading for threading in the separation unit E-10 and the elements of the loom harness. A unit E-20. In order to position the tension applying unit S-40 on the warp layer KFS, the first support member S-10 and the second support member S-20 are movably attached on the guide rail FS. By means of the guiding elements S-11 and S-11 ', the pulling device E is supported and at the same time also provided directional stability.

  As a result, the tension applying frame R is disposed at a fixed position, and the pulling device E can be moved relative to the tension applying frame R. However, in principle, the reverse arrangement is also possible in which the tensioning frame R passes along the pulling unit E in a fixed position. Here, the width of the frame R corresponds at least to the widest warp layer KFS to be processed. The frame R has means for providing the yarn layer with the tension required for processing. At the floor level, the frame R is firmly connected to the guide rail FS.

  At the start of the drawing process, the warp to be drawn is carried to the tension applying frame R, and the warp layer KFS is applied with tension on the tension applying frame R. When the scissors are used, the tension applying frame R is clamped to a base provided for that purpose. Thereafter, the threading device E is positioned at the beginning of the warp layer KFS and prepared for the threading process. In the drawing process, a plurality of fence frames and / or a plurality of fence carrier rails, and a plurality of vane carrier rails necessary for the drawing pattern are inserted into a base provided for this purpose, The storage location of the stacked vanes is filled and a passing pattern is entered or programmed. Thereafter, the threading process is started by the start operation, and threading, vane, and threading are performed by a known method until the last warp KF programmed according to the threading pattern. The cocoons and vanes through which the warp has been passed are distributed according to the passing pattern on the carrier rail provided for this purpose. The last warp KF that should be passed through the gap of the heel jumps forward from the heel.

  In order to move the drawing device E along the guide rail FS, the support members S-10 and S-20 have clamps S-12 and S-22 (shown and annotated in detail in FIG. 3), respectively. . One clamp S-12 is fixedly connected to the pulling device E, while the clamp S-22 is here positioned in a positioning mechanism S-30 comprising a spindle drive mechanism S-31 (also in detail in FIG. 3). With the assistance of the drawing and annotating). When the clamp S-22 is fixedly connected, the tension applying unit S-40 is arranged with respect to a part (partial tension application) in order to re-apply tension to the yarn layer KFS.

  In the initial state, if the threading device E is positioned on the frame R and the separation unit E-10 is in a state of catching the warp, the clamp S-22 is closed and the clamp S-12 is opened. The tension applying unit S-40 is activated, and thereby, a warp KF is applied to a part of the warp layer KFS necessary for separation without abnormality. The threading of the warp KF starts, the separation unit E-10 catches the nearest warp KF, and the threading unit E-20 passes the caught warp KF through the elements of the loom harness (not shown). During this process, the threading unit E-20 moves a certain distance in the direction of the yarn layer KFS in each case so that the separation unit E-10 can catch the next warp KF to be separated. This forward movement is performed by the spindle drive S-31 mechanism.

  When all the warp yarns in a portion of the warp layer to which tension is applied by the tension applying unit S-40 are pulled, the clamp S-12 is closed and the clamp S-22 is opened. Then, the spindle drive S-31 moves the clamp S-22 by a certain distance in the direction of the warp layer KFS so that the tension applying unit S-40 can capture a part of the layer KFS again. Thereafter, the clamp S-22 is closed, the clamp S-12 is opened, and the tension applying unit S-40 is activated. This process is repeated as many times as necessary until the last warp KF of the warp to be processed is passed.

  In summary, during the drawing process, the drawing unit E and the tension applying frame R relatively move laterally from the beginning to the end of the warp KFS according to the progress of the drawing process. When the end of the warp layer KFS has been reached and the last warp KF has been pulled, the elements of the loom harness are released from the threading device E and the tensioning frame R, whereby the threading device and the tensioning frame R Will be independent of each other. For disassembly, the heel, the heel frame including the heel and / or the heel carrier rail, and the vane carrier rail including the vane combined with the warp are removed from the pulling unit and the tensioning unit. Thus, the tensioning frame R and the pulling device E can be freed again for the next pulling step and / or its preparation, and they can also be spatially separated from each other.

  In principle, the functional unit of the threading device E is not limited to sections such as a tensioning unit, a separating unit, and a threading unit. In order to pass the warp KF through each of the eyelets, the warp stop vane eyes, and the eyelet gap, it may be possible to provide sections such as a separation unit, a cutting unit, and a threading unit. Also, with additional units, adjustment of the heel carrier rail or heel frame, accumulation of heels on the heel carrier rail, separation and distribution, threading of the warp KF to the heel, accumulation of warp stop vanes on the vane carrier rail , Separation and distribution, and facility programming, operation and control.

  FIG. 3 shows a tensioning device S on the guide rail FS of the tensioning frame R according to FIG. Here, the chassis S-50 is omitted for the sake of clarity, so that the support members S-10 and S-20 can be clearly understood as follows. These are connected to each other via a positioning mechanism S-30 including a spindle driving mechanism S-31. By this positioning mechanism S-30, the distance between the two support members S-10 and S-20 can be changed. The support members S-10 and S-20 have guide elements S-11 and S-21 that can be movably mounted on the guide rail FS. Thereby, a tension | tensile_strength provision apparatus can be moved along a rail. To the support members S-10 and S-20, for example, clamps S-12 and S-22 which can be operated electromechanically are respectively attached. Accordingly, the tension applying device S can be moved stepwise on the rail FS by alternately locking the clamps S-12 and S-22 and operating the positioning mechanism S-30 correspondingly. . The spindle drive mechanism S-31 is held on the first support member S-10, and the tension applying unit S-40 is held on the second support member S-20. Here, the tension applying unit S-40 can first move laterally on the path defined by the positioning mechanism S-30. For this purpose, the clamp S-12 is closed and the clamp S-22 is open. By closing the clamp S-22 and opening the clamp S-12, the tensioning unit S-40 can move further beyond this transverse path. As a result, the distance between the support members S-10 and S-20 is increased again by the operation of the positioning mechanism S-30, and the first support member S-10 is, so to speak, from the second support member S-20. Located at a distance. When this happens, clamp S-12 is now closed and clamp S-22 is opened. Thus, the locked support member S-10 can function as a thrust abutment for repeated forward movement by the tension applying unit S-40. In order to re-apply tension to the plurality of warp yarns KF, the plurality of warp yarns KF are, on the one hand, between the two rod-like members S-41 and S-41 ′ of the tension applying unit and the third rod-like member S-42. The third rod-shaped member S-42 is accommodated and can be swung through an intermediate space between the two rod-shaped members S-41 and S-41 ′. As a result, the bar members S-41 and S-41 'constitute at least one stop for the yarn KF caught by the third bar member S-42. Thereafter, the yarn KF re-tensioned in this way can be easily separated and subsequently passed through the elements of the loom harness.

  FIG. 4 shows a front view of the tensioning device S on the guide rail FS according to FIG. In this figure, the positioning mechanism S-30 can be clearly understood as follows. When the clamp S-12 is closed, it can move the tensioning unit S-40 in the direction indicated by the double arrow. Conversely, when the positioning mechanism S-30 is operated with the clamp S-22 closed and the clamp S-12 opened, the spindle drive mechanism S-31 is further pushed. Accordingly, stepwise continuous movement of the tension applying unit S-40 on the warp layer KFS is possible. When the tension applying frame R is laterally moved opposite to the support member S-10 while the tension applying unit S-40 is being tracked, continuous processing can be performed. Thereby, the separation unit E-10 can separate the warp KF without interruption. In order to securely catch the warp KF, both the rod-like members S-41 and S-41 'of the tension applying unit have a tapered free end. On the other hand, the third rod-shaped member S-40 is designed in a roller shape so as not to damage the yarn KF. As can be seen particularly well in the side view, the small and lightweight structure of the tensioning device S makes it possible to ensure a particularly flexible arrangement of the tensioning device S, and to provide additional functional units on the platform of the pulling device. Space for installation is generated. By attaching the tension applying device S according to the present invention, the threading device E enables particularly reliable separation and simultaneously threading of the warp KF.

  Finally, FIG. 5 shows a side view of a possible aspect of an embodiment of the tensioning device S on the guide rail FS according to FIG. In addition to the components already described, here it can be clearly understood how the third bar-like member S-42 is swiveled with respect to the warp KF. For this purpose, an eccentric mechanism S-43 is provided which requires less space and at the same time allows simple positioning over a long path. In the side view of the tensioning device S, in addition, the locking element S-12 can be seen. The locking element S-12 is provided with a recess in each of the support members S-10 or S-20 (similar to the locking element S-22 that cannot be seen because it is located behind), and the guide runs in the recess. With respect to the rail FS, these supporting members S-10 or S-20 can be closed by clamps S-12 and S-22.

  Thus, the tensioning device S according to the invention can also be arranged as an independent unit, but also provides a high functional standard due to the construction of the pulling device with further functional components. . Its simple structure makes it particularly reliable, flexible in arrangement and cost-effective with respect to both its manufacture and maintenance. These advantages are inherent to the draw-through machine equipped with such a tensioning device, and these advantages can greatly improve the quality and speed of the draw-through process.

  INDUSTRIAL APPLICABILITY The present invention can be used for a threading device that allows warp to pass through a loom.

E-10 Separation unit E-20 Feeding unit KFS Warp layer KF Warp FS Guide rail R Tension applying frame S Tension applying device S-10, S-20 Support member S-11, S-11 ', S-21 Guide element S-12, S-22 Locking element S-30 Positioning mechanism S-31 Spindle drive mechanism S-40 Tension applying unit S-41 First rod member S-41 'Second rod member S-42 Third rod member S- 43 Eccentric Mechanism S-50 Chassis

Claims (16)

A tension applying device (S) for a warp (KF) of a warp layer (KFS),
The tension applying device has two support members (S-10, S-20),
The support members (S-10, S-20) can change relative distances from each other via a positioning mechanism (S-30) connecting them, and guide elements (S-11, S-11 ′). , S-21), removably connected to a common guide rail (FS) via these guide elements and can move along said guide rail,
One of the support members (S-20) carries a tension applying unit (S-40) for re-applying tension to at least one warp (KF),
The support members (S-10, S-20) have locking elements (S-10) for alternately fixing the support members (S-10, S-20) at appropriate positions on the guide rail (FS). −12, S-22), and the tension applying unit (S-40) is movable along the guide rail (FS) with the aid of the positioning mechanism (S-30). Application device (S).   The tension applying unit (S-40) has three rod-shaped members (S-41, S-41 ′, S-42) aligned substantially in parallel with each other. The two bar-shaped members (S-41, S-41 ′) constitute at least one warp (KF) stopper, and the third bar-shaped member (S-42) catches the warp (KF). The device (S) according to claim 1, wherein the device (S) can be moved between the first and second rod-like members (S-41, S-41 ') to re-apply tension.   The device (S) according to claim 2, wherein at least one free end of the rod-like member (S-41, S-41 ', S-42) is tapered.   The device (S) according to claim 2 or 3, wherein the third rod-like member (S-42) is movable via an eccentric mechanism (S-43).   The device (S) according to any of claims 1 to 4, wherein the locking element (S-12, S-22) comprises a clamping mechanism or a latching mechanism.   The apparatus (S) according to any one of claims 1 to 5, wherein the positioning mechanism (S-30) includes a spindle drive mechanism (S-31).   The device (S) according to any one of claims 1 to 6, wherein the support member (S-10, S-20) is mounted on a movable chassis (S-50).   The device (S) according to claim 7, wherein one of the two support members (S-10, S-20) is fixedly connected to the movable chassis (S-50). A combination of the tension applying device (S) according to any one of claims 1 to 8 and a tension applying frame (R) for applying tension to the warp layer (KFS),
A combination in which the guide rail (FS) of the tension applying device (S) is connected to the tension applying frame (R).   10. Combination according to claim 9, wherein the guide rail (FS) is designed as part of the tensioning frame (R).   The combination according to claim 9 or 10, wherein the tension applying frame (R) is mounted so as to be movable relative to the tension applying device (S). A threading device (E) for a warp (KF) of a warp layer (KFS) in an element of a loom harness,
The tension applying device (S) according to any one of claims 1 to 8,
A separation unit (E-10) for catching and separating the re-tensioned yarn (KF);
A pulling unit (E-20) for passing the separated warp (KF) through an element of the loom harness;
The separation unit (E-10) and the pulling unit (E-20) are designed to move following the movement of the tension applying unit (S-40), and the pulling device (E).   The separation unit (E-10) and / or the pulling unit (E-20) is mounted on the support member (S-10) that does not carry the tension applying unit (S-40). The pulling device (E) described in 1. A method for re-applying tension to the warp yarn (KF) of the warp layer (KFS) using the tension applying device (S) according to claim 1,
The tension applying unit (S-40) is positioned on the warp layer (KFS),
The support members (10, 20) are alternately fixed at appropriate positions on the guide rail (FS),
After each change, the support member (S-) is arranged so that the tension applying unit (S-40) moves along the warp layer (KFS) and can re-tension the continuous warp (KF). 10, the distance between S-20) is changed.   When the support member (S-10, S-10 ′) is fixed at an appropriate position, the warp layer (KFS) is moved relative to the tension applying device (S), whereby the warp layer ( 15. The method according to claim 14, wherein an overall continuous movement of the tensioning device (S) along the KFS) occurs.   The separation unit (E-10) and the pulling unit (E-20) are moved along the warp layer (KFS) following the movement of the tension applying unit (S-40). 16. A method according to claim 14 or 15, wherein the warped yarn (KF) is passed through an element of the loom harness.

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