EP2706136B1 - Holding device for an intermediate support of a warp detecting device of a loom and support device with an intermediate support and two holding devices - Google Patents

Holding device for an intermediate support of a warp detecting device of a loom and support device with an intermediate support and two holding devices Download PDF

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Publication number
EP2706136B1
EP2706136B1 EP12183199.4A EP12183199A EP2706136B1 EP 2706136 B1 EP2706136 B1 EP 2706136B1 EP 12183199 A EP12183199 A EP 12183199A EP 2706136 B1 EP2706136 B1 EP 2706136B1
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EP
European Patent Office
Prior art keywords
support
thread
holding device
holding
carrier tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12183199.4A
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German (de)
French (fr)
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EP2706136A1 (en
Inventor
Christian Dr. Gerth
Rainer Grossmann
Mario Gusenko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Groz Beckert KG filed Critical Groz Beckert KG
Priority to EP12183199.4A priority Critical patent/EP2706136B1/en
Priority to CN201310396682.8A priority patent/CN103668728B/en
Publication of EP2706136A1 publication Critical patent/EP2706136A1/en
Application granted granted Critical
Publication of EP2706136B1 publication Critical patent/EP2706136B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/20—Warp stop motions
    • D03D51/28—Warp stop motions electrical
    • D03D51/30—Warp stop motions electrical wherein droppers are suspended on individual warp threads or small groups of threads

Definitions

  • the invention relates to a holding device for an intermediate support of a warp thread monitor of a weaving machine.
  • the invention also relates to a support device with an intermediate support and two holding devices arranged at the two ends of the intermediate support.
  • Warp thread monitors for weaving machines are known per se.
  • the warp thread monitor is used to detect warp thread breaks when a loom is in operation, so that the weaving process can be stopped immediately and the warp thread can be replaced. This avoids producing fabric with weaving defects.
  • a warp thread monitor has contact rails arranged transversely to the direction in which the warp threads extend.
  • Contact lamellas are arranged on the contact rails and can short-circuit two electrical contacts of the contact rail, which are isolated from one another, if the associated warp thread breaks.
  • the assigned warp thread runs through a hole in the contact lamella. If the warp thread breaks, the contact lamella falls down and short-circuits the two contacts of the contact bar. This short circuit is recognized so that a warp thread break can be detected immediately.
  • the contact bars extend in a longitudinal direction transversely to the warp thread direction. They are connected at their longitudinal ends to the frame of the loom, as shown, for example, in EP 1 598 462 B1 is explained.
  • the contact rails can be attached in the area of the fastening be interposed with the machine frame of the loom damping means.
  • a support device with an intermediate support extending approximately in the direction of the warp threads in a transverse direction is used for this purpose.
  • the intermediate support extends between two thread support tubes of the warp thread monitor, which run parallel to the contact rails in the longitudinal direction.
  • Such a support device with an intermediate support is shown in EP 1 598 462 B1 only illustrated in a highly schematic manner.
  • the support device includes a holding device in order to fasten the intermediate support to the thread-carrying tube.
  • a holding device is, for example, from the technical information sheet Weaving 7 "Warp thread monitor at a glance", DE 08.2011 known to the applicant.
  • the holding device has a support part and a tensioning part, which are used to fasten the support device with the intermediate support to a thread-carrying tube, as is illustrated schematically below, for example on page 2 of this publication.
  • the support part encompasses the thread support tube from below, while the tensioning part is laterally tensioned against it on the side facing away from the intermediate support at the beginning of the curvature of the thread support tube.
  • the tensioning parts are located below a plane that is tangentially applied to the upper radii of the two thread support tubes of the warp thread straightener. This reduces the risk that the warp threads which lie on the thread support tube come into contact with the holding device and in particular with the tensioning part and are thereby damaged. It has been shown, however, that when the loom is in operation, the holding device is subjected to considerable loads and that it is subjected to heavy loads due to vibrations and movements.
  • FR 1 093 425 A discloses a holding device for an intermediate support of a warp thread monitor of a weaving machine with a support part and a tensioning part which can be fastened to the support part and which are set up for fastening to a thread support tube of the warp thread monitor Support part available, which border on a recess for the thread support tube.
  • the holding surface of the tensioning part can engage flatly on the thread-carrying tube.
  • the holding device for an intermediate support has a support part and a clamping part that can be fastened to the support part.
  • the support part and the tensioning part are set up to be attached to the thread support tube of the warp thread monitor.
  • a first holding surface is present on the clamping part and a second holding surface is present on the supporting part.
  • the two holding surfaces adjoin a recess which is formed by the support part and the clamping part.
  • the recess delimited by the tensioning part and the supporting part is closed completely in the circumferential direction or at least in an angular range around the longitudinal axis of the thread support tube of at least 270 ° or 300 °.
  • the first holding surface and the second holding surface each lie flat on the thread-carrying tube when the holding device is attached to the thread-carrying tube and / or the first holding surface and the second holding surface are in contact with the thread-carrying tube at a point that extends on the side of the longitudinal center plane through the Thread-carrying tube is located on which the intermediate support carried by the holding device is also arranged.
  • the longitudinal center plane through the thread support tube is oriented at right angles to a transverse direction.
  • the transverse direction is the direction in which the intermediate support extends.
  • one or both measures reduce a relative movement of the holding device with respect to the thread-carrying tube, which movement can be triggered by shocks or vibrations during operation of the loom.
  • Such relative movements can lead to the fixing of the holding device on the thread-carrying tube being loosened or released, as a result of which the movement play of the holding device with respect to the thread-carrying tube increases.
  • the loads on the holding device increase and can lead to breakage of the holding device.
  • the holding device according to the invention is better fixed on the thread-carrying tube than previous holding devices due to the flat contact of the two holding surfaces and / or, so to speak, by the overlapping of the thread-carrying tube.
  • the holding device can be held non-positively and / or positively on the thread support tube so that vibrations during operation of the weaving machine do not result in increased play between the holding device and the thread support tube.
  • the holding device preferably engages around the thread-carrying tube in such a way that a form-fitting fastening is achieved in all directions transverse to the longitudinal direction of the thread-carrying tube. The loads on the holding device during operation of the loom do not increase. The life of the holding device and therefore the support device with the intermediate support is enlarged.
  • both the tensioning part and the supporting part lie directly against the thread-carrying tube without the interposition of separate elements.
  • the support part consists for example of plastic and, in one embodiment, is made integrally with the associated intermediate support.
  • the support part and the intermediate support therefore consist of a uniform material and are formed in one piece without a seam or joint.
  • the clamping part is preferably made of a metal, for example aluminum.
  • the first holding surface and / or the second holding surface can extend at least partially curved in a circumferential direction around the thread support tube.
  • the curvature of this section is adapted to the curvature of the thread-carrying tube and in particular has a constant radius of curvature.
  • the first holding surface and / or the second holding surface thus rests against a curved section of the thread-carrying tube in the circumferential direction and in the longitudinal direction, so that an uninterrupted flat contact can be established between the relevant holding surface and the thread-carrying tube.
  • the course of the holding surfaces is adapted in the circumferential direction to the course of the thread tube, there is a form-fitting encompassing the respectively assigned circumferential section of the thread support tube regardless of the force with which the tensioning part or the support part is pressed against the thread support tube.
  • the curved section of the first holding surface and / or the second holding surface preferably rests against the thread-carrying tube in an angular range of at least 90 ° or at least 120 °.
  • the recess is adapted to the contour of the thread-carrying tube and is essentially round or oval or elliptical.
  • a clamping element which can assume a release position and a clamping position is used to fasten the clamping part to the support part.
  • the clamping part In the release position, the clamping part is mounted on the support part so as to be pivotable about a pivot axis.
  • the tensioning part and the support part In the tensioned position of the tensioning element, the tensioning part and the support part are tensioned in a non-positive and preferably form-fitting manner against the thread support tube. The pivotability of the tensioning part in the release position of the tensioning element simplifies the assembly of the holding device on the thread-carrying tube.
  • the pivot axis can preferably run inclined with respect to the longitudinal center plane through the thread support tube and thus bring about a force component in the longitudinal center plane and a force component transverse to the longitudinal center plane between the holding device and the thread support tube.
  • the tensioning element is designed as a tensioning screw that cooperates with an internal thread on the support part.
  • the internal thread can be formed by a threaded sleeve on the support part.
  • the threaded sleeve can be made of metal.
  • the clamping part also has a base body and a support projection protruding away from the base body.
  • the support projection serves to support the intermediate support and / or a spacer element mounted on the intermediate support.
  • Such a spacer element can serve, for example, to support the contact rails of the warp thread monitor in the transverse direction.
  • the intermediate support or the spacer element can rest on a support surface of the support projection so that a transverse force can be absorbed on the holding device via the support projection in the transverse direction parallel to the direction of extension of the intermediate support.
  • the support surface of the support projection rests against the intermediate support or the spacer element in particular when the clamping element is in its clamping position.
  • this or the spacer element mounted thereon between the two holding devices and in particular between the two support projections can be supported in the transverse direction at both ends or a clamping force can be applied.
  • the first holding surface of the clamping part can be arranged partly on the base body and partly on the support projection.
  • the two sections of the first holding surface adjoin one another in the circumferential direction.
  • the two sections of the first holding surfaces can be of different widths measured in the longitudinal direction. This is particularly the case when the base body, measured in the longitudinal direction, is wider than the support projection.
  • the width of the support projection in the longitudinal direction is preferably at most as great as the width of the intermediate support and / or a spacer element mounted on the intermediate support. As a result, the space for the warp threads on both sides of the intermediate support or the spacer element is not reduced by the support projection.
  • FIG. 1 the basic structure of a loom 10 is illustrated schematically.
  • the weaving machine 10 has a backrest 11, via which the warp threads 12 are fed in a warp thread plane E parallel to one another in the warp thread direction K.
  • the warp threads 12 run through a warp thread monitor 13 and then preferably through several slats 14. Following the slats, the warp threads 12 are each guided through a thread eye of a heald which is arranged in a heald frame 15.
  • two heald frames 15 are shown, the number of heald frames can also be greater and depends on the type of weave of the fabric to be produced.
  • the heald frames 15 can be moved in a working direction A at right angles to the warp thread direction K by a drive (not shown).
  • a shed can be opened and a weft thread 16 can be entered into the shed.
  • a reed 17 serves to stop the weft thread 16 against a fabric edge 18.
  • the fabric produced is pulled off via a fabric take-
  • FIG. 2 shows a schematic plan view of the warp thread monitor 13 of the weaving machine 10.
  • the warp thread monitor 13 has two fastening elements 25 running in a transverse direction Q.
  • the two fastening elements 25, viewed in a longitudinal direction L, which is oriented at right angles to the transverse direction Q, are arranged on both sides of the warp threads 12.
  • the two fastening elements 25 are connected to one another by two thread-carrying tubes 26 and together with these thread-carrying tubes 26 form the frame.
  • the thread support tubes 26 extend parallel to one another in the longitudinal direction L and, viewed in the working direction A, below the warp threads 12. The warp threads 12 can therefore rest on the thread support tubes 12 or come into contact with them.
  • the transverse direction Q is aligned parallel to the warp thread direction K.
  • the warp thread monitor 13 can, however, also run inclined with respect to the warp thread plane E, so that the transverse direction Q and the warp thread direction K can be different from one another and can enclose an angle of, for example, about 10 ° to 15 °.
  • the fastening elements 25 are each fastened to an assigned part of a machine frame 27 of the loom 10, as shown schematically in FIG Figure 2 is illustrated.
  • a plurality of contact rails 28 of the warp thread monitor 13 extend parallel to one another in the longitudinal direction L between the two thread support tubes 26.
  • the number of contact rails 28 depends on the number of warp threads 12.
  • a contact bar 28 is shown in cross section. According to the example, it has a U-shaped first rail part 28a and a second rail part 28b which is arranged in the space between the first rail part 28a and protrudes somewhat from the space.
  • the two rail parts 28a, 28b are electrically conductive and electrically insulated from one another by an insulator 28c arranged in the space between the first rail part 28a.
  • a contact blade 29 is assigned to each warp thread 12.
  • the contact blade 29 is made of electrically conductive material and has a warp thread hole 30 through which the associated warp thread 12 is passed. In the working direction A above the warp thread hole, the contact blade 29 has a blade slot 31 through which one of the contact rails 28 extends.
  • Each contact lamella 29 has, adjacent to the lamella slot 31 in the working direction A, above the associated contact rail 28, a leg 32 which, viewed in the transverse direction Q, engages over the associated contact rail. This leg 32 is with an undamaged warp thread 12 arranged at a distance from the contact bar 28. If the warp thread 12 breaks, the contact lamella 29 is no longer supported on the warp thread 12 and falls in the working direction A onto the contact rail 28.
  • the warp thread monitor 13 has two electrical connections 33 for each contact rail 28, each of which is assigned to one of the two rail parts 28a, 28b.
  • the electrical resistance or the short circuit between the two connections 33 can be established and a warp thread break can be recognized in this way.
  • a plurality of contact lamellas 29 are assigned to each contact rail 26.
  • the contact lamellas 29 for warp threads 12 arranged immediately adjacent are located on different contact rails 28, as shown schematically in FIG Figure 2 or. Figure 3 is illustrated.
  • the contact rails 28 overlap all the warp threads 12 in the longitudinal direction L. Depending on the length of the contact rails 28, these must be additionally held or supported in the area between the two fastening elements 25.
  • the warp thread monitor 13 therefore has a support device 38 which is arranged between the fastening elements 25 and connects the two thread carrying tubes 26.
  • the extremely schematically illustrated support device 38 is shown in FIG Figure 4 illustrated in side view.
  • the support device 38 has an intermediate support 39 extending between the two thread-carrying tubes 26 on.
  • the intermediate support 39 extends in the transverse direction Q.
  • a holding device 40 for fastening the support device 38 to the respectively assigned thread-carrying tube 26.
  • Each holding device 40 has a clamping part 41 and a support part 42, which can be connected to one another via a clamping element 43 and, for example, a clamping screw 44.
  • the clamping element 43 is in the Figures 6 and 7th illustrated.
  • the support part 42 is designed integrally with the intermediate support 39.
  • two support parts 42 and the intermediate support 39 running between them are made in one piece without a seam and joint from a uniform material, in particular from plastic.
  • the clamping part 41 is preferably made of metal, for example aluminum.
  • the intermediate support 39 can as in the embodiment Figure 4 illustrated, have at least one and, for example, two spacer elements 48, 49.
  • the spacer elements 48, 49 have a slotted, comb-like shape. Through the slots 47 in the spacer elements 48, 49 running in the working direction A, spacer webs 50 are formed in the transverse direction Q between adjacent supports.
  • the spacer bars 50 are provided to specify the distance between two adjacent contact rails 28 in the transverse direction Q.
  • a spacer bar 50 is arranged between two adjacent contact rails 28 of the warp thread monitor 13, so that the contact rails 28 extend through the slots 47 of the upper spacer element 48.
  • the lower spacer element 49 additionally provided according to the example is used to specify the distance between two adjacent guide rails 51 of the warp thread monitor 13.
  • the guide rails 51 are provided to keep the contact blades 29 of a contact rail 28 at a distance from the contact blades 29 of an adjacent guide rail 28
  • the guide rails 51 are arranged below in the working direction A and offset in the transverse direction Q between two contact rails 28.
  • the guide rails 51 are shown in Figure 2 not illustrated and only in Figure 4 shown.
  • the guide rails 51 extend in the longitudinal direction L below the warp threads 12 between the two fastening elements 25. If there are no guide rails 51 on the warp thread monitor 13, the lower spacer element 49 can also be omitted.
  • the thread support rails 26 are oval in cross section.
  • Each thread carrier tube 26 has two flat sides 52 running in the longitudinal direction L and in the working direction. The two flat sides are connected by a curved section 53 at the top and bottom, as seen in the working direction A.
  • the radii of curvature R of the outer surfaces of the two curved sections 53 are of the same size in the exemplary embodiment. This creates an oval hollow profile.
  • a longitudinal center plane M through the thread support tube 26 is oriented at right angles to the transverse direction Q.
  • the longitudinal center plane M runs through the two centers of curvature P of the curved sections 53.
  • the support part 42 and the tensioning part 41 together delimit a recess 58 in the holding device 40, through which the thread-carrying tube 26 runs when the holding device 40 is attached to the thread support tube 326.
  • the contour of the recess 58 is adapted to the cross-sectional shape of the thread-carrying tube.
  • the support part 42 and the tensioning part 41 completely enclose the thread support tube 26 in the exemplary embodiment.
  • the clamping part 41 is formed by a base body 59 and a support projection 60.
  • the base body 59 has a cap-like design and surrounds an attachment section 61 of the support part 42.
  • a threaded sleeve 62 with an internal thread is arranged, which is preferably made of metal and is accessible from the attachment section 61.
  • the internal thread could also be formed directly in the support part 42.
  • a fastening hole 63 with an annular shoulder 64 is provided in the base body 59. The clamping part 41 can therefore be clamped against the support part 42 via the head of the clamping screw 44.
  • the longitudinal axis of the threaded sleeve 62 and the clamping screw 44 run, for example, at an incline to the longitudinal center plane M and determine the pivot axis S about which the clamping part 41 can be pivoted relative to the support part 42 when the clamping element 43 formed by the clamping screw 44 is in its release position ( Figure 6 ).
  • the clamping screw 44 is only partially screwed into the threaded sleeve 62 in the release position and the head of the clamping screw 44 is spaced from the support part 42 in such a way that the clamping part 41 can be pivoted about the pivot axis S. In the release position, the clamping part 41 therefore does not engage around the attachment section 61.
  • the clamping position of the clamping screw 44 or the clamping element 43 is shown in FIG Figure 7 illustrated.
  • the holding device 40 is positively and non-positively arranged on the thread carrying tube 26 and the tensioning part 41 is immovable with respect to the carrying part 42 attached to this.
  • the clamping part 41 comprises the two sides of the attachment section 61 oriented in the longitudinal direction, as a result of which an anti-twist device is produced to prevent the clamping part 41 from rotating unintentionally about the pivot axis S relative to the support part 42.
  • the width of the base body 59 is greater than the width of the support projection 60.
  • the support projection 60 is formed by a plate-like part which, when viewed in the longitudinal direction L, has an approximately triangular contour in the exemplary embodiment.
  • the contour of the support projection 60 can also have various other shapes.
  • a first edge 60a of the support projection 60 extends obliquely to the upper end 65 of the support projection 60.
  • Another second edge 60b of the support projection 60 adjoining the upper end 65 runs essentially parallel to the longitudinal center plane in the clamping position of the clamping element 43, at least in sections M of the thread-carrying tube 46.
  • a support surface 66 is present in the region of the upper end 65.
  • the support surface 66 is arranged on a protruding shoulder 67.
  • the shoulder 67 protrudes from the remaining area of the second edge 60b of the support projection 60.
  • the support projection 60 does not have any section or area which protrudes through the plane in which the support surface 66 is located.
  • the clamping part 41 Adjacent to the recess 58, the clamping part 41 has a first holding surface 70.
  • the first holding surface 70 has a subsection 70a on the base body 59 and an adjoining subsection 70b on the support projection 60.
  • the two partial sections 70a, 70b directly adjoin one another in the circumferential direction around the thread-carrying tube 26.
  • the clamping part 61 lies continuously in the circumferential direction and in the longitudinal direction flat on the thread support tube 26 when the holding device 40 is attached to the thread support tube 26.
  • the width of the subsection 70b of the first holding surface present on the support projection 60 is smaller than that of the subsection 70a present on the base body.
  • the extent of the first holding surface 70 in the circumferential direction around the thread-carrying tube 26 is shown in FIG Figure 6 illustrated schematically by means of arrow H1.
  • a second holding surface 71 adjoins the recess 58 on the support part 42.
  • the second holding surface 71 extends in the circumferential direction around the thread rope tube along the entire assigned curved section 53 and at least in sections along the adjoining flat sides 52 of the thread carrier tube 26, as shown schematically by the arrow H2 in FIG Figure 6 is illustrated.
  • the second holding surface 71 of the support part 42 is therefore assigned to the lower curved section 53 and the first holding surface 70 of the tensioning part 41 is assigned to the upper curved section 53 of the thread-carrying tube 26.
  • the support part 42 rests flat on the thread support tube 26 in the circumferential direction and in the longitudinal direction L when the holding device 40 is attached to the thread support tube 26.
  • Both holding surfaces 70, 71 rest on the thread support tube 26 on the side with respect to the longitudinal center plane M on which the intermediate support 39 is located. According to the example, the two holding surfaces 70, 71 also rest on the side facing away from the intermediate support 39 with respect to the longitudinal center plane M on the thread support tube 26.
  • the two curved sections 53 of the thread-carrying tube 26 are passed both through the first holding surface 70 and encompassed flatly on both sides by the second holding surface 71, seen in the circumferential direction.
  • both the first holding surface 70 and the second holding surface 71 are designed to be curved in sections and have the same radius of curvature R as the outer surface of the associated curved section 53 of the thread-carrying tube 26.
  • the second holding surface 71 rests in the circumferential direction around the thread-carrying tube completely on the associated curved section 53 of the thread-carrying tube.
  • the first holding surface 70 lies in the circumferential direction starting from the center of curvature P of the assigned curved section 53, viewed in an angular range W greater than 90 ° and, for example, in an angular range W of 130 ° to 140 °.
  • the first holding surface 70 rests in the circumferential direction around the thread-carrying tube 26, for example, completely against the associated curved section 53 of the thread-carrying tube 26. This results in a contact angle range of, for example, approximately 40 ° to 50 ° between the first contact surface 70 and the curved section 53 on its side which is delimited by the longitudinal center plane M and which faces the intermediate support 39.
  • the two holding surfaces 70, 71 do not directly adjoin one another.
  • the tensioning part 41 and the holding part 42 therefore do not lie continuously in the circumferential direction on the thread-carrying tube 26, but in the two areas between the first and the second holding surface, and preferably only here, a gap can be present between the holding device 40 and the thread-carrying tube 26.
  • a support leg 75 of the intermediate support 39 Extends parallel to the longitudinal center plane M transversely to the transverse direction Q and transversely to the longitudinal direction L along the associated flat side 52 of the thread carrying tube 26 is a support leg 75 of the intermediate support 39.
  • the intermediate support 39 has a support leg 75 at both opposite ends in the transverse direction Q, with a free space between these two support legs 75 which has a receiving area 76 for the arrangement of the at least a spacer element 48 and / or 49 forms.
  • these support legs 75 rest on the respectively assigned support surface 66 of the support projection 60.
  • the tensioning part 41 of the holding device 40 can absorb a force in the transverse direction Q via the support projection 60, the tensioning part 41 being supported on the thread-carrying tube 26.
  • the at least one spacer element 48, 49 of the support device 38 is prevented from moving in the transverse direction Q due to vibrations and shocks during operation of the loom 10.
  • a clamping force in the transverse direction Q can be exerted on the support element 39 and, for example, the support legs 75 and / or the at least one spacer element 48, 49 arranged in between, via the support projections 60 of the two holding devices 40 of a support device 38, so that the at least one spacer element 48, 49 is held non-positively clamped in the transverse direction Q when the clamping elements 43 of the holding devices 40 of the support device 38 are each in their clamping position ( Figures 4 and 7th ).
  • a form-fit connection between the support leg 75 could also be used and / or the at least one spacer element 48, 49 on the one hand and the support surface 66 of the support projection 60 of the holding device 40 on the other hand.
  • the support device 38 can be attached to the warp thread monitor 13 at a later date.
  • the assembly is carried out as follows: First of all, an alley is formed between the warp threads 12 at the attachment point of the support device 38.
  • the upper spacer element 48 is then arranged on the contact rails 28.
  • the lower spacer element 49 is arranged on the intermediate support 39.
  • the clamping elements 43 formed by the clamping screws 44 are brought into their release position and the two clamping parts 41 are pivoted away from the support legs 75 so that the recess 58 is accessible or open ( Figure 6 ).
  • the two holding devices 40 can then be plugged onto the two thread-carrying tubes 26 from below.
  • the upper spacer element 48 is connected to the support legs 75 of the intermediate support 39 and / or the lower spacer element 49.
  • the two clamping parts 41 are then pivoted by approximately 180 degrees so that their respective support surface 66 faces the associated support leg 75.
  • the clamping elements 43 are then brought into their clamping position. According to the example, this is done by screwing the tensioning screws 44 into the internal thread of the associated threaded sleeve 62, with a predetermined tightening torque being observed in particular.
  • the second holding surface 71 of the support part 42 is tensioned from below and the first holding surface 70 of the tensioning part 41 from above against the associated thread-carrying tube 26.
  • the Support surface 66 of the support projection 60 for contact with the assigned support leg 75 and supports the two spacer elements 48, 49 via the support leg 75 in the transverse direction Q.
  • the position of the holding devices 40 relative to the thread carrying tube 26 results automatically when the tensioning screw 44 is tightened.
  • a secure, play-free connection is achieved between the holding device 40 and the thread-carrying tube 26, which connection is firmly positioned and held on the thread-carrying tube 26 even in the case of strong vibrations and oscillations of the loom 10. In this way, the wear on the holding device 40 is reduced.
  • the invention relates to a holding device 40 for a support device 38 of a warp thread monitor 13.
  • the support device 38 includes an intermediate support 39 running between two parallel thread support tubes 26 on which at least one spacer element 48, 49 is arranged.
  • the holding device 40 has a clamping part 41 with a first holding surface 70 and a support part 42 with a second holding surface 71.
  • the two holding surfaces 70, 71 adjoin a recess 58 for the thread support tube 26.
  • the two holding surfaces do not directly adjoin one another as seen in the circumferential direction around the thread-carrying tube 26.
  • the recess 58 is nevertheless completely closed by the tensioning part 41 and the supporting part 42 as seen in the circumferential direction around the thread carrying tube 26.
  • the two holding surfaces 70, 71 lie flat on the thread-carrying tube 26 in the circumferential direction and in a longitudinal direction of the thread-carrying tube 26.
  • the holding surfaces 70, 71 are arranged in such a way that they are in contact at least in sections on the side of the longitudinal center plane M through the thread support tube 26 with the thread support tube 26 on which the intermediate support 39 is also arranged.

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  • Textile Engineering (AREA)
  • Looms (AREA)

Description

Die Erfindung betrifft eine Halteeinrichtung für eine Zwischenstütze eines Kettfadenwächters einer Webmaschine. Die Erfindung betrifft außerdem eine Stützeinrichtung mit einer Zwischenstütze und zwei an den beiden Enden der Zwischenstütze angeordneten Halteeinrichtungen.The invention relates to a holding device for an intermediate support of a warp thread monitor of a weaving machine. The invention also relates to a support device with an intermediate support and two holding devices arranged at the two ends of the intermediate support.

Kettfadenwächter für Webmaschinen sind an sich bekannt. Der Kettfadenwächter dient dazu, Kettfadenbrüche beim Betrieb einer Webmaschine zu erkennen, so dass sofort der Webprozess gestoppt und der Kettfaden ersetzt werden kann. Dadurch wird vermieden, dass Gewebe mit Webfehlern hergestellt wird.Warp thread monitors for weaving machines are known per se. The warp thread monitor is used to detect warp thread breaks when a loom is in operation, so that the weaving process can be stopped immediately and the warp thread can be replaced. This avoids producing fabric with weaving defects.

Ein Kettfadenwächter weist quer zur Erstreckungsrichtung der Kettfäden angeordnete Kontaktschienen auf. Auf den Kontaktschienen sind Kontaktlamellen angeordnet, die zwei voneinander isolierte elektrische Kontakte der Kotaktschiene kurzschließen können, wenn der zugeordnete Kettfaden reißt. Unterhalb der Kontaktschiene verläuft der zugeordnete Kettfaden durch ein Loch in der Kontaktlamelle. Reißt der Kettfaden fällt die Kontaktlamelle herunter und schließt die zwei Kontakte der Kontaktschiene kurz. Dieser Kurzschluss wird erkannt, so dass ein Kettfadenbruch unmittelbar festgestellt werden kann.A warp thread monitor has contact rails arranged transversely to the direction in which the warp threads extend. Contact lamellas are arranged on the contact rails and can short-circuit two electrical contacts of the contact rail, which are isolated from one another, if the associated warp thread breaks. Below the contact bar, the assigned warp thread runs through a hole in the contact lamella. If the warp thread breaks, the contact lamella falls down and short-circuits the two contacts of the contact bar. This short circuit is recognized so that a warp thread break can be detected immediately.

Die Kontaktschienen erstrecken sich in einer Längsrichtung quer zur Kettfadenrichtung. Sie sind an ihren Längsenden mit dem Gestell der Webmaschine verbunden, wie dies beispielsweise in EP 1 598 462 B1 erläutert ist. Um Schwingungen während des Betriebs der Webmaschine zu dämpfen, können im Bereich der Befestigung der Kontaktschienen mit dem Maschinengestell der Webmaschine Dämpfungsmittel zwischengeschaltet sein. Bei langen Kontaktschienen ist es notwendig, diese im Bereich zwischen ihren beiden Längsenden zusätzlich abzustützen. Hierzu dient eine Stützeinrichtung mit einer in etwa in Richtung der Kettfäden in einer Querrichtung verlaufenden Zwischenstütze. Die Zwischenstütze erstreckt sich zwischen zwei Fadentragrohren des Kettfadenwächters, die in Längsrichtung parallel zu den Kontaktschienen verlaufen. Eine solche Stützeinrichtung mit einer Zwischenstütze ist in EP 1 598 462 B1 lediglich stark schematisiert veranschaulicht.The contact bars extend in a longitudinal direction transversely to the warp thread direction. They are connected at their longitudinal ends to the frame of the loom, as shown, for example, in EP 1 598 462 B1 is explained. In order to dampen vibrations during operation of the weaving machine, the contact rails can be attached in the area of the fastening be interposed with the machine frame of the loom damping means. In the case of long contact rails, it is necessary to additionally support them in the area between their two longitudinal ends. A support device with an intermediate support extending approximately in the direction of the warp threads in a transverse direction is used for this purpose. The intermediate support extends between two thread support tubes of the warp thread monitor, which run parallel to the contact rails in the longitudinal direction. Such a support device with an intermediate support is shown in EP 1 598 462 B1 only illustrated in a highly schematic manner.

Zu der Stützeinrichtung gehört eine Halteeinrichtung, um die Zwischenstütze am Fadentragrohr zu befestigen. Eine solche Halteeinrichtung ist beispielsweise aus der technischen Information Weaving 7 "Kettfadenwächter im Überblick", DE 08.2011 der Anmelderin bekannt. Die Halteeinrichtung weist ein Tragteil und ein Spannteil auf, die zur Befestigung der Stützeinrichtung mit der Zwischenstütze an einem Fadentragrohr dienen, wie dies beispielsweise auf Seite 2 dieser Veröffentlichung unten schematisch veranschaulicht ist. Das Tragteil umfasst das Fadentragrohr von unten, während das Spannteil auf der der Zwischenstütze abgewandten Seite am Beginn der Krümmung der Fadentragrohres seitlich dagegen gespannt ist. Die Spannteile befinden sich dabei unterhalb einer Ebene, die tangential an die oberen Radien der beiden Fadentragrohre des Kettfadenrichters angelegt ist. Dadurch ist die Gefahr reduziert, dass die Kettfäden, die auf dem Fadentragrohr aufliegen, in Kontakt mit der Halteeinrichtung und insbesondere mit dem Spannteil gelangen und dadurch beschädigt werden. Es hat sich allerdings gezeigt, dass beim Betrieb der Webmaschine erhebliche Belastungen der Halteeinrichtung auftreten und diese durch Vibrationen und Bewegungen einer starken Beanspruchung unterworfen ist.The support device includes a holding device in order to fasten the intermediate support to the thread-carrying tube. Such a holding device is, for example, from the technical information sheet Weaving 7 "Warp thread monitor at a glance", DE 08.2011 known to the applicant. The holding device has a support part and a tensioning part, which are used to fasten the support device with the intermediate support to a thread-carrying tube, as is illustrated schematically below, for example on page 2 of this publication. The support part encompasses the thread support tube from below, while the tensioning part is laterally tensioned against it on the side facing away from the intermediate support at the beginning of the curvature of the thread support tube. The tensioning parts are located below a plane that is tangentially applied to the upper radii of the two thread support tubes of the warp thread straightener. This reduces the risk that the warp threads which lie on the thread support tube come into contact with the holding device and in particular with the tensioning part and are thereby damaged. It has been shown, however, that when the loom is in operation, the holding device is subjected to considerable loads and that it is subjected to heavy loads due to vibrations and movements.

FR 1 093 425 A offenbart eine Halteeinrichtung für eine Zwischenstütze eines Kettfadenwächters einer Webmaschine mit einem Tragteil und einem am Tragteil befestigbaren Spannteil, die zur Befestigung an einem Fadentragrohr des Kettfadenwächters eingerichtet sind, entsprechend dem Oberbegriff des Patentanspruches 1. Eine erste Haltefläche ist am Spannteil und eine zweite Haltefläche ist am Tragteil vorhanden, die an eine Aussparung für das Fadentragrohr angrenzen. Die Haltefläche des Spannteils kann bei einem Ausführungsbeispiel flächig am Fadentragrohr angreifen. FR 1 093 425 A discloses a holding device for an intermediate support of a warp thread monitor of a weaving machine with a support part and a tensioning part which can be fastened to the support part and which are set up for fastening to a thread support tube of the warp thread monitor Support part available, which border on a recess for the thread support tube. In one exemplary embodiment, the holding surface of the tensioning part can engage flatly on the thread-carrying tube.

Daher besteht eine Aufgabe der vorliegenden Erfindung darin, eine Halteeinrichtung für eine Zwischenstütze eines Kettfadenwächters sowie eine Stützeinrichtung mit Zwischenstütze und zwei Halteeinrichtungen zu schaffen, deren Lebensdauer erhöht ist.It is therefore an object of the present invention to provide a holding device for an intermediate support of a warp thread monitor and a support device with an intermediate support and two holding devices, the service life of which is increased.

Diese Aufgabe wird durch eine Halteeinrichtung mit den Merkmalen des Patentanspruches 1 sowie eine Stützeinrichtung mit den Merkmalen des Patentanspruches 13 gelöst.This object is achieved by a holding device with the features of patent claim 1 and a support device with the features of patent claim 13.

Erfindungsgemäß weist die Halteeinrichtung für eine Zwischenstütze ein Tragteil sowie ein am Tragteil befestigbares Spannteil auf. Das Tragteil und das Spannteil sind dazu eingerichtet, am Fadentragrohr des Kettfadenwächters befestigt zu werden. Am Spannteil ist eine erste Haltefläche und am Tragteil ist eine zweite Haltefläche vorhanden. Die beiden Halteflächen grenzen an eine Aussparung an, die vom Tragteil und vom Spannteil gebildet ist. Vorzugsweise ist die vom Spannteil und vom Tragteil begrenzte Aussparung in Umfangsrichtung vollständig oder zumindest in einem Winkelbereich um die Längsachse des Fadentragrohres von zumindest 270° oder 300° geschlossen.According to the invention, the holding device for an intermediate support has a support part and a clamping part that can be fastened to the support part. The support part and the tensioning part are set up to be attached to the thread support tube of the warp thread monitor. A first holding surface is present on the clamping part and a second holding surface is present on the supporting part. The two holding surfaces adjoin a recess which is formed by the support part and the clamping part. Preferably, the recess delimited by the tensioning part and the supporting part is closed completely in the circumferential direction or at least in an angular range around the longitudinal axis of the thread support tube of at least 270 ° or 300 °.

Erfindungsgemäß liegen die erste Haltefläche und die zweite Haltefläche jeweils flächig an dem Fadentragrohr an, wenn die Halteeinrichtung am Fadentragrohr befestigt ist und/oder die erste Haltefläche und die zweite Haltefläche liegen an einer Stelle am Fadentragrohr an, die sich auf der Seite der Längsmittelebene durch das Fadentragrohr befindet, auf der auch die von der Halteeinrichtung getragene Zwischenstütze angeordnet ist. Die Längsmittelebene durch das Fadentragrohr ist rechtwinklig zu einer Querrichtung orientiert. Die Querrichtung ist die Richtung, in der sich die Zwischenstütze erstreckt.According to the invention, the first holding surface and the second holding surface each lie flat on the thread-carrying tube when the holding device is attached to the thread-carrying tube and / or the first holding surface and the second holding surface are in contact with the thread-carrying tube at a point that extends on the side of the longitudinal center plane through the Thread-carrying tube is located on which the intermediate support carried by the holding device is also arranged. The longitudinal center plane through the thread support tube is oriented at right angles to a transverse direction. The transverse direction is the direction in which the intermediate support extends.

Erfindungsgemäß wird durch eine oder beide Maßnahmen eine Relativbewegung der Halteeinrichtung gegenüber dem Fadentragrohr vermindert, die durch Erschütterungen oder Vibrationen beim Betrieb der Webmaschine ausgelöst werden können. Solche Relativbewegungen können dazu führen, dass sich die Fixierung der Halteeinrichtung am Fadentragrohr lockert oder löst, wodurch das Bewegungsspiel der Halteeinrichtung gegenüber dem Fadentragrohr zunimmt. Die Belastungen an der Halteeinrichtung nehmen zu und können zum Bruch der Halteeinrichtung führen. Die erfindungsgemäße Halteeinrichtung ist durch die flächige Anlage der beiden Halteflächen und/oder sozusagen durch das Übergreifen des Fadentragrohres gegenüber bisherigen Halteeinrichtungen besser am Fadentragrohr fixiert. Die Halteeinrichtung kann spielfrei am Fadentragrohr kraft- und/oder formschlüssig gehalten werden, so dass sich auch durch Vibrationen beim Betrieb der Webmaschine kein vergrößertes Spiel zwischen der Halteeinrichtung und dem Fadentragrohr ausbildet. Vorzugsweise umgreift die Halteeinrichtung das Fadentragrohr derart, dass eine formschlüssige Befestigung in allen Richtungen quer zur Längsrichtung des Fadentragrohres erreicht ist. Die Belastungen auf die Halteeinrichtung während des Betriebs der Webmaschine nehmen nicht zu. Die Lebensdauer der Halteeinrichtung und mithin der Stützeinrichtung mit der Zwischenstütze ist vergrößert.According to the invention, one or both measures reduce a relative movement of the holding device with respect to the thread-carrying tube, which movement can be triggered by shocks or vibrations during operation of the loom. Such relative movements can lead to the fixing of the holding device on the thread-carrying tube being loosened or released, as a result of which the movement play of the holding device with respect to the thread-carrying tube increases. The loads on the holding device increase and can lead to breakage of the holding device. The holding device according to the invention is better fixed on the thread-carrying tube than previous holding devices due to the flat contact of the two holding surfaces and / or, so to speak, by the overlapping of the thread-carrying tube. The holding device can be held non-positively and / or positively on the thread support tube so that vibrations during operation of the weaving machine do not result in increased play between the holding device and the thread support tube. The holding device preferably engages around the thread-carrying tube in such a way that a form-fitting fastening is achieved in all directions transverse to the longitudinal direction of the thread-carrying tube. The loads on the holding device during operation of the loom do not increase. The life of the holding device and therefore the support device with the intermediate support is enlarged.

Vorzugsweise liegt sowohl das Spannteil, als auch das Tragteil unmittelbar ohne Zwischenschaltung von separaten Elementen unmittelbar am Fadentragrohr an. Das Tragteil besteht beispielsweise aus Kunststoff und ist bei einem Ausführungsbeispiel integral mit der zugeordneten Zwischenstütze ausgeführt. Das Tragteil und die Zwischenstütze bestehen mithin aus einem einheitlichen Material und sind integral ohne Naht- oder Fügestelle einstückig ausgebildet. Das Spannteil ist vorzugsweise aus einem Metall, beispielsweise aus Aluminium hergestellt.Preferably, both the tensioning part and the supporting part lie directly against the thread-carrying tube without the interposition of separate elements. The support part consists for example of plastic and, in one embodiment, is made integrally with the associated intermediate support. The support part and the intermediate support therefore consist of a uniform material and are formed in one piece without a seam or joint. The clamping part is preferably made of a metal, for example aluminum.

Die erste Haltefläche und/oder die zweite Haltefläche kann in einer Umfangsrichtung um das Fadentragrohr zumindest abschnittsweise gekrümmt verlaufen. Die Krümmung dieses Abschnitts ist an die Krümmung des Fadentragrohres angepasst und weist insbesondere einen konstanten Krümmungsradius auf. Die erste Haltefläche und/oder die zweite Haltefläche liegt somit an einem gekrümmten Abschnitt des Fadentragrohrs in Umfangsrichtung und in Längsrichtung an, so dass ein ununterbrochener flächiger Kontakt zwischen der betreffenden Haltefläche und dem Fadentragrohr hergestellt werden kann. Dadurch dass der Verlauf der Halteflächen in Umfangsrichtung an den Verlauf des Fadenrohres angepasst ist, erfolgt ein formschlüssiges Umgreifen des jeweils zugeordneten Umfangsabschnitts des Fadentragrohren unabhängig von der Kraft, mit der das Spannteil bzw. das Tragteil an das Fadentragrohr gedrückt wird. Insbesondere besteht der flächige Kontakt zwischen der jeweiligen Haltefläche und dem Fadentragrohr auf beiden Seiten der Längsmittelebene durch das Fadentragrohr. In die Halteeinrichtung eingeleitete Kräfte quer zur Längsrichtung lassen sich dadurch besonders gut abstützen. Vom Krümmungsmittelpunkt der ersten Haltefläche bzw. der zweiten Haltefläche aus gemessen liegt der gekrümmte Abschnitt der ersten Haltefläche und/oder der zweiten Haltefläche vorzugsweise in einem Winkelbereich von zumindest 90° oder zumindest 120° am Fadentragrohr an.The first holding surface and / or the second holding surface can extend at least partially curved in a circumferential direction around the thread support tube. The curvature of this section is adapted to the curvature of the thread-carrying tube and in particular has a constant radius of curvature. The first holding surface and / or the second holding surface thus rests against a curved section of the thread-carrying tube in the circumferential direction and in the longitudinal direction, so that an uninterrupted flat contact can be established between the relevant holding surface and the thread-carrying tube. Because the course of the holding surfaces is adapted in the circumferential direction to the course of the thread tube, there is a form-fitting encompassing the respectively assigned circumferential section of the thread support tube regardless of the force with which the tensioning part or the support part is pressed against the thread support tube. In particular, there is flat contact between the respective holding surface and the thread-carrying tube on both sides of the longitudinal center plane through the thread-carrying tube. Forces introduced into the holding device transversely to the longitudinal direction can thereby be supported particularly well. From the center of curvature of the first Measured from the holding surface or the second holding surface, the curved section of the first holding surface and / or the second holding surface preferably rests against the thread-carrying tube in an angular range of at least 90 ° or at least 120 °.

Die Aussparung ist bei einer Ausführungsform an die Kontur des Fadentragrohrs angepasst und im Wesentlichen rund oder oval oder elliptisch ausgeführt.In one embodiment, the recess is adapted to the contour of the thread-carrying tube and is essentially round or oval or elliptical.

Zur Befestigung des Spannteils am Tragteil dient bei einer vorteilhaften Ausführungsform ein Spannelement, das eine Lösestellung und eine Spannstellung einnehmen kann. In der Lösestellung ist das Spannteil um eine Schwenkachse schwenkbar am Tragteil gelagert. In der Spannstellung des Spannelements sind das Spannteil und das Tragteil kraftschlüssig und vorzugsweise formschlüssig gegen das Fadentragrohr gespannt. Die Schwenkbarkeit des Spannteils in der Lösestellung des Spannelements vereinfacht die Montage der Halteeinrichtung am Fadentragrohr.In an advantageous embodiment, a clamping element which can assume a release position and a clamping position is used to fasten the clamping part to the support part. In the release position, the clamping part is mounted on the support part so as to be pivotable about a pivot axis. In the tensioned position of the tensioning element, the tensioning part and the support part are tensioned in a non-positive and preferably form-fitting manner against the thread support tube. The pivotability of the tensioning part in the release position of the tensioning element simplifies the assembly of the holding device on the thread-carrying tube.

Die Schwenkachse kann vorzugsweise geneigt gegenüber der Längsmittelebene durch das Fadentragrohr verlaufen und somit eine Kraftkomponente in der Längsmittelebene und eine Kraftkomponente quer zur Längsmittelebene zwischen der Halteeinrichtung und dem Fadentragrohr bewirken.The pivot axis can preferably run inclined with respect to the longitudinal center plane through the thread support tube and thus bring about a force component in the longitudinal center plane and a force component transverse to the longitudinal center plane between the holding device and the thread support tube.

Bei einer Ausführungsform ist das Spannelement als Spannschraube ausgeführt, die mit einem Innengewinde am Tragteil zusammenarbeitet. Das Innengewinde kann durch eine Gewindehülse am Tragteil gebildet sein. Die Gewindehülse kann dabei aus Metall hergestellt sein.In one embodiment, the tensioning element is designed as a tensioning screw that cooperates with an internal thread on the support part. The internal thread can be formed by a threaded sleeve on the support part. The threaded sleeve can be made of metal.

Das Spannteil weist außerdem einen Grundkörper und einen vom Grundkörper weg ragenden Stützvorsprung auf. Der Stützvorsprung dient zur Abstützung der Zwischenstütze und/oder eines an der Zwischenstütze gelagerten Distanzelements. Ein solches Distanzelement kann beispielsweise zur Abstützung der Kontaktschienen des Kettfadenwächters in Querrichtung dienen. Die Zwischenstütze bzw. das Distanzelement können an einer Stützfläche des Stützvorsprungs anliegen, so dass über den Stützvorsprung eine Querkraft in Querrichtung parallel zur Erstreckungsrichtung der Zwischenstütze an der Halteeinrichtung aufgenommen werden kann. Die Stützfläche des Stützvorsprungs liegt insbesondere dann an der Zwischenstütze bzw. dem Distanzelement an, wenn sich das Spannelement in seiner Spannstellung befindet.The clamping part also has a base body and a support projection protruding away from the base body. The support projection serves to support the intermediate support and / or a spacer element mounted on the intermediate support. Such a spacer element can serve, for example, to support the contact rails of the warp thread monitor in the transverse direction. The intermediate support or the spacer element can rest on a support surface of the support projection so that a transverse force can be absorbed on the holding device via the support projection in the transverse direction parallel to the direction of extension of the intermediate support. The support surface of the support projection rests against the intermediate support or the spacer element in particular when the clamping element is in its clamping position.

Bei einer Stützeinrichtung mit zwei Halteeinrichtungen an den beiden Enden der Zwischenstütze kann diese bzw. das daran gelagerte Distanzelement zwischen den beiden Halteeinrichtungen und insbesondere zwischen den beiden Stützvorsprüngen in Querrichtung an beiden Enden abgestützt oder mit einer Klemmkraft beaufschlagt werden.In the case of a support device with two holding devices at the two ends of the intermediate support, this or the spacer element mounted thereon between the two holding devices and in particular between the two support projections can be supported in the transverse direction at both ends or a clamping force can be applied.

Die erste Haltefläche des Spannteiles kann teilweise am Grundkörper und teilweise am Stützvorsprung angeordnet sein. Insbesondere schließen sich die beiden Abschnitte der ersten Haltefläche in Umfangsrichtung aneinander an. Die beiden Abschnitte der ersten Halteflächen können gemessen in Längsrichtung unterschiedlich breit sein. Dies ist insbesondere dann der Fall, wenn der Grundkörper in Längsrichtung gemessen breiter ist als der Stützvorsprung. Die Breite des Stützvorsprunges in Längsrichtung ist vorzugsweise maximal so groß, wie die Breite der Zwischenstütze und/oder eines an der Zwischenstütze gelagerten Distanzelements. Dadurch wird der Raum für die Kettfäden zu beiden Seiten der Zwischenstütze bzw. des Distanzelementes durch den Stützvorsprung nicht verringert.The first holding surface of the clamping part can be arranged partly on the base body and partly on the support projection. In particular, the two sections of the first holding surface adjoin one another in the circumferential direction. The two sections of the first holding surfaces can be of different widths measured in the longitudinal direction. This is particularly the case when the base body, measured in the longitudinal direction, is wider than the support projection. The width of the support projection in the longitudinal direction is preferably at most as great as the width of the intermediate support and / or a spacer element mounted on the intermediate support. As a result, the space for the warp threads on both sides of the intermediate support or the spacer element is not reduced by the support projection.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen. Die Beschreibung beschränkt sich auf die wesentlichen Merkmale der Erfindung. Die Zeichnung ist ergänzend heranzuziehen. Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der beigefügten Zeichnung im Einzelnen erläutert. Es zeigen:

  • Figur 1 eine schematische, blockschaltbildähnliche Darstellung einer Webmaschine in Seitenansicht,
  • Figur 2 eine schematische, blockschaltbildähnliche Darstellung eines Kettfadenwächters der Webmaschine nach Figur 1 in Draufsicht,
  • Figur 3 eine perspektivische Teildarstellung der Kontaktschienen des Kettfadenwächters nach Figur 2 mit beispielhaft dargestellten Kontaktlamellen,
  • Figur 4 eine Stützeinrichtung mit zwei Halteeinrichtungen und einer Zwischenstütze in schematische Seitenansicht mit Blick in Längsrichtung,
  • Figur 5 eine schematische Darstellung einer Kontaktschiene des Kettfadenwächters im Querschnitt,
  • Figur 6 eine schematische Darstellung der Halteeinrichtung in Seitenansicht mit Blick in Längsrichtung, wobei sich ein Spannelement in seiner Lösestelle befindet,
  • Figur 7 die Halteeinrichtung nach Figur 6, wobei sich das Spannelement in Spannstellung befindet und
  • Figur 8 das Spannteil der Halteeinrichtung in einer perspektivischen Darstellung.
Advantageous embodiments of the invention result from the dependent claims. The description is restricted to the essential features of the invention. The drawing is to be used as a supplement. In the following, exemplary embodiments of the invention are explained in detail with reference to the accompanying drawings. Show it:
  • Figure 1 a schematic, block diagram-like representation of a loom in side view,
  • Figure 2 a schematic, block diagram-like representation of a warp thread monitor of the weaving machine according to Figure 1 in plan view,
  • Figure 3 a perspective partial representation of the contact rails of the warp thread monitor Figure 2 with contact blades shown as an example,
  • Figure 4 a support device with two holding devices and an intermediate support in a schematic side view looking in the longitudinal direction,
  • Figure 5 a schematic representation of a contact bar of the warp thread monitor in cross section,
  • Figure 6 a schematic representation of the holding device in a side view with a view in the longitudinal direction, with a clamping element in its release point,
  • Figure 7 the holding device after Figure 6 , wherein the clamping element is in the clamping position and
  • Figure 8 the clamping part of the holding device in a perspective view.

In Figur 1 ist schematisch der prinzipielle Aufbau einer Webmaschine 10 veranschaulicht. Die Webmaschine 10 weist einen Streichbaum 11 auf, über den die Kettfäden 12 in einer Kettfadenebene E parallel zueinander in Kettfadenrichtung K zugeführt werden. Die Kettfäden 12 verlaufen durch einen Kettfadenwächter 13 und anschließend durch vorzugsweise mehrere Lamellen 14. Im Anschluss an die Lamellen werden die Kettfäden 12 durch jeweils ein Fadenauge einer Weblitze geführt, die in einem Webschaft 15 angeordnet sind. In Figur 1 sind beispielhaft zwei Webschäfte 15 dargestellt, wobei die Anzahl der Webschäfte auch größer sein kann und von der Bindungsart des herzustellenden Gewebes abhängt. Die Webschäfte 15 sind in einer Arbeitsrichtung A rechtwinklig zur Kettfadenrichtung K durch einen nicht dargestellten Antrieb bewegbar. Dadurch kann ein Webfach geöffnet und ein Schussfaden 16 in das Webfach eingetragen werden. Ein Riet 17 dient zum Anschlag des Schussfadens 16 an eine Gewebekante 18. Das hergestellte Gewebe wird über einen Warenabzug 19 abgezogen.In Figure 1 the basic structure of a loom 10 is illustrated schematically. The weaving machine 10 has a backrest 11, via which the warp threads 12 are fed in a warp thread plane E parallel to one another in the warp thread direction K. The warp threads 12 run through a warp thread monitor 13 and then preferably through several slats 14. Following the slats, the warp threads 12 are each guided through a thread eye of a heald which is arranged in a heald frame 15. In Figure 1 For example, two heald frames 15 are shown, the number of heald frames can also be greater and depends on the type of weave of the fabric to be produced. The heald frames 15 can be moved in a working direction A at right angles to the warp thread direction K by a drive (not shown). As a result, a shed can be opened and a weft thread 16 can be entered into the shed. A reed 17 serves to stop the weft thread 16 against a fabric edge 18. The fabric produced is pulled off via a fabric take-off 19.

Figur 2 zeigt schematisch in Draufsicht den Kettfadenwächter 13 der Webmaschine 10. Der Kettfadenwächter 13 weist zwei in einer Querrichtung Q verlaufenden Befestigungselementen 25 auf. Die beiden Befestigungselemente 25 sind in einer Längsrichtung L betrachtet, die rechtwinklig zur Querrichtung Q orientiert ist, zu beiden Seiten der Kettfäden 12 angeordnet. Die beiden Befestigungselemente 25 sind durch zwei Fadentragrohre 26 miteinander verbunden und bilden mit diesen Fadentragrohren 26 den Rahmen. Die Fadentragrohre 26 erstrecken sich parallel zueinander in Längsrichtung L und in Arbeitsrichtung A betrachtet unterhalb der Kettfäden 12. Die Kettfäden 12 können daher auf den Fadentragrohren 12 aufliegen bzw. mit diesen in Kontakt kommen. Figure 2 shows a schematic plan view of the warp thread monitor 13 of the weaving machine 10. The warp thread monitor 13 has two fastening elements 25 running in a transverse direction Q. The two fastening elements 25, viewed in a longitudinal direction L, which is oriented at right angles to the transverse direction Q, are arranged on both sides of the warp threads 12. The two fastening elements 25 are connected to one another by two thread-carrying tubes 26 and together with these thread-carrying tubes 26 form the frame. The thread support tubes 26 extend parallel to one another in the longitudinal direction L and, viewed in the working direction A, below the warp threads 12. The warp threads 12 can therefore rest on the thread support tubes 12 or come into contact with them.

Bei dem hier beschriebenen Ausführungsbeispiel ist die Querrichtung Q parallel zur Kettfadenrichtung K ausgerichtet. Der Kettfadenwächter 13 kann gegenüber der Kettfadenebene E allerdings auch geneigt verlaufen, so dass die Querrichtung Q und die Kettfadenrichtung K voneinander verschieden sein können und einen Winkel von beispielsweise etwa 10° bis 15° einschließen können.In the embodiment described here, the transverse direction Q is aligned parallel to the warp thread direction K. The warp thread monitor 13 can, however, also run inclined with respect to the warp thread plane E, so that the transverse direction Q and the warp thread direction K can be different from one another and can enclose an angle of, for example, about 10 ° to 15 °.

Die Befestigungselemente 25 sind an jeweils einem zugeordneten Teil eines Maschinengestells 27 der Webmaschine 10 befestigt, wie dies schematisch in Figur 2 veranschaulicht ist. Zwischen den beiden Fadentragrohren 26 erstrecken sich in Längrichtung L parallel zueinander mehrere Kontaktschienen 28 des Kettfadenwächters 13. Die Anzahl der Kontaktschienen 28 hängt von der Anzahl der Kettfäden 12 ab. In Figur 5 ist eine Kontaktschiene 28 im Querschnitt dargestellt. Sie weist beispielsgemäß ein U-förmiges erstes Schienenteil 28a und ein im Zwischenraum des ersten Schienenteils 28a angeordnetes zweites Schienenteil 28b auf, das aus dem Zwischenraum etwas herausragt. Die beiden Schienenteile 28a, 28b sind elektrisch leitfähig und durch einen im Zwischenraum des ersten Schienenteils 28a angeordneten Isolator 28c elektrisch voneinander isoliert.The fastening elements 25 are each fastened to an assigned part of a machine frame 27 of the loom 10, as shown schematically in FIG Figure 2 is illustrated. A plurality of contact rails 28 of the warp thread monitor 13 extend parallel to one another in the longitudinal direction L between the two thread support tubes 26. The number of contact rails 28 depends on the number of warp threads 12. In Figure 5 a contact bar 28 is shown in cross section. According to the example, it has a U-shaped first rail part 28a and a second rail part 28b which is arranged in the space between the first rail part 28a and protrudes somewhat from the space. The two rail parts 28a, 28b are electrically conductive and electrically insulated from one another by an insulator 28c arranged in the space between the first rail part 28a.

Jedem Kettfaden 12 ist eine Kontaktlamelle 29 zugeordnet. Die Kontaktlamelle 29 ist aus elektrisch leitfähigem Material und weist ein Kettfadenloch 30 auf, durch das der zugeordnete Kettfaden 12 hindurchgeführt ist. In Arbeitsrichtung A oberhalb des Kettfadenloches hat die Kontaktlamelle 29 einen Lamellenschlitz 31, durch den eine der Kontaktschienen 28 hindurch verläuft. Jede Kontaktlamelle 29 weist angrenzend an den Lamellenschlitz 31 in Arbeitsrichtung A oberhalb der zugeordneten Kontaktschiene 28 einen Schenkel 32 auf, der die zugeordnete Kontaktschiene in Querrichtung Q betrachtet übergreift. Dieser Schenkel 32 ist bei unbeschädigtem Kettfaden 12 mit Abstand zur Kontaktschiene 28 angeordnet. Reißt der Kettfaden 12 stützt sich die Kontaktlamelle 29 nicht länger auf dem Kettfaden 12 ab und fällt in Arbeitsrichtung A auf die Kontaktschiene 28 herunter. Dadurch wird über den Schenkel 32 eine elektrisch leitfähige Verbindung zwischen den beiden Schienenteilen 28a, 28b hergestellt. Der Kettfadenwächter 13 weist für jede Kontaktschiene 28 zwei elektrische Anschlüsse 33 auf, die jeweils einem der beiden Schienenteile 28a, 28b zugeordnet sind. Der elektrische Widerstand bzw. der Kurzschluss zwischen den beiden Anschlüssen 33 kann festgestellt und auf diese Weise ein Kettfadenbruch erkannt werden.A contact blade 29 is assigned to each warp thread 12. The contact blade 29 is made of electrically conductive material and has a warp thread hole 30 through which the associated warp thread 12 is passed. In the working direction A above the warp thread hole, the contact blade 29 has a blade slot 31 through which one of the contact rails 28 extends. Each contact lamella 29 has, adjacent to the lamella slot 31 in the working direction A, above the associated contact rail 28, a leg 32 which, viewed in the transverse direction Q, engages over the associated contact rail. This leg 32 is with an undamaged warp thread 12 arranged at a distance from the contact bar 28. If the warp thread 12 breaks, the contact lamella 29 is no longer supported on the warp thread 12 and falls in the working direction A onto the contact rail 28. As a result, an electrically conductive connection is established between the two rail parts 28a, 28b via the limb 32. The warp thread monitor 13 has two electrical connections 33 for each contact rail 28, each of which is assigned to one of the two rail parts 28a, 28b. The electrical resistance or the short circuit between the two connections 33 can be established and a warp thread break can be recognized in this way.

Jeder Kontaktschiene 26 sind eine Mehrzahl von Kontaktlamellen 29 zugeordnet. Die Kontaktlamellen 29 für unmittelbar benachbart angeordnete Kettfäden 12 befinden sich an unterschiedlichen Kontaktschienen 28, wie dies schematisch in Figur 2 bzw. Figur 3 veranschaulicht ist.A plurality of contact lamellas 29 are assigned to each contact rail 26. The contact lamellas 29 for warp threads 12 arranged immediately adjacent are located on different contact rails 28, as shown schematically in FIG Figure 2 or. Figure 3 is illustrated.

Die Kontaktschienen 28 übergreifen alle Kettfäden 12 in Längsrichtung L. Abhängig von der Länge der Kontaktschienen 28 müssen diese im Bereich zwischen den beiden Befestigungselementen 25 zusätzlich gehalten bzw. gestützt werden. Beim Betrieb der Webmaschine 10 treten erhebliche Vibrationen und Schwingungen auf, die zu großen Belastungen auch am Kettfadenwächter 13 führen. Der Kettfadenwächter 13 weist daher eine zwischen den Befestigungselementen 25 angeordnete und die beiden Fadentragrohre 26 verbindende Stützeinrichtung 38 auf. Die in Figur 2 äußerst schematisch veranschaulichte Stützeinrichtung 38 ist in Figur 4 in Seitenansicht veranschaulicht.The contact rails 28 overlap all the warp threads 12 in the longitudinal direction L. Depending on the length of the contact rails 28, these must be additionally held or supported in the area between the two fastening elements 25. When the loom 10 is in operation, considerable vibrations and oscillations occur, which lead to great loads on the warp thread monitor 13 as well. The warp thread monitor 13 therefore has a support device 38 which is arranged between the fastening elements 25 and connects the two thread carrying tubes 26. In the Figure 2 The extremely schematically illustrated support device 38 is shown in FIG Figure 4 illustrated in side view.

Die Stützeinrichtung 38 weist eine sich zwischen den beiden Fadentragrohren 26 erstreckende Zwischenstütze 39 auf. Die Zwischenstütze 39 erstreckt sich in Querrichtung Q. An beiden in Querrichtung Q beabstandeten Enden der Zwischenstütze 39 ist jeweils eine Halteeinrichtung 40 zur Befestigung der Stützeinrichtung 38 am jeweils zugeordneten Fadentragrohr 26 vorhanden. Jede Halteeinrichtung 40 weist ein Spannteil 41 und ein Tragteil 42 auf, die über ein Spannelement 43 und beispielsgemäß eine Spannschraube 44 miteinander verbindbar sind. Das Spannelement 43 ist in den Figuren 6 und 7 veranschaulicht.The support device 38 has an intermediate support 39 extending between the two thread-carrying tubes 26 on. The intermediate support 39 extends in the transverse direction Q. At both ends of the intermediate support 39 spaced apart in the transverse direction Q, there is a holding device 40 for fastening the support device 38 to the respectively assigned thread-carrying tube 26. Each holding device 40 has a clamping part 41 and a support part 42, which can be connected to one another via a clamping element 43 and, for example, a clamping screw 44. The clamping element 43 is in the Figures 6 and 7th illustrated.

Das Tragteil 42 ist beim Ausführungsbeispiel integral mit der Zwischenstütze 39 ausgeführt. Somit sind beispielsgemäß zwei Tragteile 42 und die dazwischen verlaufende Zwischenstütze 39 einstückig ohne Naht- und Fügestelle aus einem einheitlichen Material, insbesondere aus Kunststoff, hergestellt. Das Spannteil 41 ist vorzugsweise aus Metall, beispielsweise aus Aluminium, hergestellt.In the exemplary embodiment, the support part 42 is designed integrally with the intermediate support 39. Thus, according to the example, two support parts 42 and the intermediate support 39 running between them are made in one piece without a seam and joint from a uniform material, in particular from plastic. The clamping part 41 is preferably made of metal, for example aluminum.

Die Zwischenstütze 39 kann wie beim Ausführungsbeispiel nach Figur 4 veranschaulicht, wenigstens ein und beispielsgemäß zwei Distanzelemente 48, 49 aufweisen. Die Distanzelemente 48, 49 haben eine geschlitzte, kammähnliche Form. Durch die in Arbeitsrichtung A verlaufenden Schlitze 47 in den Distanzelementen 48, 49 sind in Querrichtung Q zwischen benachbarten Stützen angeordnete Distanzstege 50 gebildet.The intermediate support 39 can as in the embodiment Figure 4 illustrated, have at least one and, for example, two spacer elements 48, 49. The spacer elements 48, 49 have a slotted, comb-like shape. Through the slots 47 in the spacer elements 48, 49 running in the working direction A, spacer webs 50 are formed in the transverse direction Q between adjacent supports.

Beispielsgemäß sind bei dem hier dargestellten oberen Distanzelement 48 die Distanzstege 50 dazu vorgesehen, den Abstand zwischen zwei benachbarten Kontaktschienen 28 in Querrichtung Q vorzugeben. Jeweils ein Distanzsteg 50 ist zwischen zwei benachbarten Kontaktschienen 28 des Kettfadenwächters 13 angeordnet, so dass sich die Kontaktschienen 28 durch die Schlitze 47 des oberen Distanzelementes 48 erstrecken.According to the example, in the case of the upper spacer element 48 shown here, the spacer bars 50 are provided to specify the distance between two adjacent contact rails 28 in the transverse direction Q. In each case a spacer bar 50 is arranged between two adjacent contact rails 28 of the warp thread monitor 13, so that the contact rails 28 extend through the slots 47 of the upper spacer element 48.

Das beispielsgemäß zusätzlich vorgesehene untere Distanzelement 49 dient zur Vorgabe des Abstandes zweier benachbarter Führungsschienen 51 des Kettfadenwächters 13. Die Führungsschienen 51 sind bei dem hier beschriebenen Ausführungsbeispiel vorgesehen, um die Kontaktlamellen 29 einer Kontaktschiene 28 auf Abstand zu halten von den Kontaktlamellen 29 einer benachbarten Führungsschiene 28. Die Führungsschienen 51 sind zu diesem Zweck in Arbeitsrichtung A unterhalb und in Querrichtung Q versetzt jeweils zwischen zwei Kontaktschienen 28 angeordnet. Zur besseren Übersicht sind die Führungsschienen 51 in Figur 2 nicht veranschaulicht und lediglich in Figur 4 dargstellt. Die Führungsschienen 51 erstrecken sich in Längsrichtung L unterhalb der Kettfäden 12 zwischen den beiden Befestigungselementen 25. Sind keine Führungsschienen 51 am Kettfadenwächter 13 vorhanden, kann auch das untere Distanzelement 49 entfallen.The lower spacer element 49 additionally provided according to the example is used to specify the distance between two adjacent guide rails 51 of the warp thread monitor 13. In the embodiment described here, the guide rails 51 are provided to keep the contact blades 29 of a contact rail 28 at a distance from the contact blades 29 of an adjacent guide rail 28 For this purpose, the guide rails 51 are arranged below in the working direction A and offset in the transverse direction Q between two contact rails 28. For a better overview, the guide rails 51 are shown in Figure 2 not illustrated and only in Figure 4 shown. The guide rails 51 extend in the longitudinal direction L below the warp threads 12 between the two fastening elements 25. If there are no guide rails 51 on the warp thread monitor 13, the lower spacer element 49 can also be omitted.

Beim Ausführungsbeispiel sind die Fadentragschienen 26 im Querschnitt oval ausgeführt. Jedes Fadentragrohr 26 weist zwei in Längsrichtung L und in Arbeitsrichtung verlaufende Flachseiten 52 auf. Die beiden Flachseiten sind in Arbeitsrichtung A gesehen oben und unten jeweils durch einen gekrümmten Abschnitt 53 verbunden. Die Krümmungsradien R der Außenflächen der beiden gekrümmten Abschnitte 53 sind beim Ausführungsbeispiel gleich groß. Dadurch entsteht ein ovales Hohlprofil. Eine Längsmittelebene M durch das Fadentragrohr 26 ist rechtwinkelig zur Querrichtung Q ausgerichtet. Die Längsmittelebene M verläuft durch die beiden Krümmungsmittelpunkte P der gekrümmten Abschnitte 53.In the exemplary embodiment, the thread support rails 26 are oval in cross section. Each thread carrier tube 26 has two flat sides 52 running in the longitudinal direction L and in the working direction. The two flat sides are connected by a curved section 53 at the top and bottom, as seen in the working direction A. The radii of curvature R of the outer surfaces of the two curved sections 53 are of the same size in the exemplary embodiment. This creates an oval hollow profile. A longitudinal center plane M through the thread support tube 26 is oriented at right angles to the transverse direction Q. The longitudinal center plane M runs through the two centers of curvature P of the curved sections 53.

Das Tragteil 42 und das Spannteil 41 begrenzen gemeinsam eine Aussparung 58 der Halteeinrichtung 40, durch die das Fadentragrohr 26 hindurch verläuft, wenn die Halteeinrichtung 40 am Fadentragrohr 326 befestigt ist. Die Kontur der Aussparung 58 ist an die Querschnittsform des Fadentragrohrs angepasst. Das Tragteil 42 und das Spannteil 41 umschließen das Fadentragrohr 26 beim Ausführungsbeispiel vollständig.The support part 42 and the tensioning part 41 together delimit a recess 58 in the holding device 40, through which the thread-carrying tube 26 runs when the holding device 40 is attached to the thread support tube 326. The contour of the recess 58 is adapted to the cross-sectional shape of the thread-carrying tube. The support part 42 and the tensioning part 41 completely enclose the thread support tube 26 in the exemplary embodiment.

Das Spannteil 41 ist von einem Grundkörper 59 und von einem Stützvorsprung 60 gebildet. Der Grundkörper 59 ist kappenähnlich ausgestaltet und umgreift einen Anbringungsabschnitt 61 des Tragteils 42. Im Tragteil 42 ist beispielsgemäß eine Gewindehülse 62 mit einem Innengewinde angeordnet, die vorzugsweise aus Metall besteht, und von dem Anbringungsabschnitt 61 her zugänglich ist. Das Innengewinde könnte alternativ auch direkt im Tragteil 42 ausgebildet sein. Im Grundkörper 59 ist ein Befestigungsloch 63 mit einer Ringschulter 64 vorhanden. Über den Kopf der Spannschraube 44 kann daher das Spannteil 41 gegen das Tragteil 42 gespannt werden. Die Längsachse der Gewindehülse 62 und der Spannschraube 44 verlaufen beispielsgemäß schräg geneigt zur Längsmittelebene M und bestimmen die Schwenkachse S, um die das Spannteil 41 relativ zum Tragteil 42 geschwenkt werden kann, wenn sich das von der Spannschraube 44 gebildete Spannelement 43 in seiner Lösestellung befindet (Figur 6). Beispielsgemäß ist die Spannschraube 44 in der Lösestellung nur teilweise in die Gewindehülse 62 eingeschraubt und der Kopf der Spannschraube 44 ist derart vom Tragteil 42 beabstandet, dass das Spannteil 41 um die Schwenkachse S geschwenkt werden kann. In der Lösestellung umgreift das Spannteil 41 den Anbringungsabschnitt 61 daher nicht. Die Spannstellung der Spannschraube 44 bzw. des Spannelements 43 ist in Figur 7 veranschaulicht.The clamping part 41 is formed by a base body 59 and a support projection 60. The base body 59 has a cap-like design and surrounds an attachment section 61 of the support part 42. In the support part 42, for example, a threaded sleeve 62 with an internal thread is arranged, which is preferably made of metal and is accessible from the attachment section 61. Alternatively, the internal thread could also be formed directly in the support part 42. A fastening hole 63 with an annular shoulder 64 is provided in the base body 59. The clamping part 41 can therefore be clamped against the support part 42 via the head of the clamping screw 44. The longitudinal axis of the threaded sleeve 62 and the clamping screw 44 run, for example, at an incline to the longitudinal center plane M and determine the pivot axis S about which the clamping part 41 can be pivoted relative to the support part 42 when the clamping element 43 formed by the clamping screw 44 is in its release position ( Figure 6 ). According to the example, the clamping screw 44 is only partially screwed into the threaded sleeve 62 in the release position and the head of the clamping screw 44 is spaced from the support part 42 in such a way that the clamping part 41 can be pivoted about the pivot axis S. In the release position, the clamping part 41 therefore does not engage around the attachment section 61. The clamping position of the clamping screw 44 or the clamping element 43 is shown in FIG Figure 7 illustrated.

In der Spannstellung ist die Halteeinrichtung 40 form- und kraftschlüssig am Fadentragrohr 26 angeordnet und das Spannteil 41 ist unbeweglich gegenüber dem Tragteil 42 an diesem befestigt. Beispielsgemäß umfasst das Spannteil 41 dabei die beiden in Längsrichtung orientierten Seiten des Anbringungsabschnitts 61, wodurch eine Verdrehsicherung gegen ein ungewolltes Drehen des Spannteils 41 um die Schwenkachse S relativ zum Tragteil 42 hergestellt ist.In the tensioning position, the holding device 40 is positively and non-positively arranged on the thread carrying tube 26 and the tensioning part 41 is immovable with respect to the carrying part 42 attached to this. According to the example, the clamping part 41 comprises the two sides of the attachment section 61 oriented in the longitudinal direction, as a result of which an anti-twist device is produced to prevent the clamping part 41 from rotating unintentionally about the pivot axis S relative to the support part 42.

In Längsrichtung L gemessen ist die Breite des Grundkörpers 59 größer als die Breite des Stützvorsprungs 60. Der Stützvorsprung 60 ist durch ein plattenartiges Teil gebildet, das mit Blick in Längsrichtung L beim Ausführungsbeispiel eine etwa dreieckförmige Kontur aufweist. Die Kontur des Stützvorsprungs 60 kann auch verschiedene andere Formen haben. Ausgehend vom Befestigungsloch 63 erstreckt sich eine erste Kante 60a des Stützvorsprungs 60 schräg zum oberen Ende 65 des Stützvorsprungs 60. Eine andere an das obere Ende 65 anschließende zweite Kante 60 b des Stützvorsprungs 60 verläuft in Spannstellung des Spannelements 43 zumindest abschnittsweise im Wesentlichen parallel zur Längsmittelebene M des Fadentragrohres 46. An dieser zweiten Kante 60b ist beispielsgemäß im Bereich des oberen Endes 65 eine Stützfläche 66 vorhanden. Die Stützfläche 66 ist an einem vorspringenden Absatz 67 angeordnet. Der Absatz 67 steht vom übrigen Bereich der zweiten Kante 60b des Stützvorsprungs 60 vor. Der Stützvorsprung 60 weist keinen Abschnitt oder Bereich auf, der durch die Ebene hindurchragt, in der sich die Stützfläche 66 befindet.Measured in the longitudinal direction L, the width of the base body 59 is greater than the width of the support projection 60. The support projection 60 is formed by a plate-like part which, when viewed in the longitudinal direction L, has an approximately triangular contour in the exemplary embodiment. The contour of the support projection 60 can also have various other shapes. Starting from the fastening hole 63, a first edge 60a of the support projection 60 extends obliquely to the upper end 65 of the support projection 60. Another second edge 60b of the support projection 60 adjoining the upper end 65 runs essentially parallel to the longitudinal center plane in the clamping position of the clamping element 43, at least in sections M of the thread-carrying tube 46. On this second edge 60b, for example, a support surface 66 is present in the region of the upper end 65. The support surface 66 is arranged on a protruding shoulder 67. The shoulder 67 protrudes from the remaining area of the second edge 60b of the support projection 60. The support projection 60 does not have any section or area which protrudes through the plane in which the support surface 66 is located.

Angrenzend an die Aussparung 58 weist das Spannteil 41 eine erste Haltefläche 70 auf. Die erste Haltefläche 70 weist einen Teilabschnitt 70a am Grundkörper 59 und einen sich daran anschließenden Teilabschnitt 70b am Stützvorsprung 60 auf. Die beiden Teilabschnitte 70a, 70b schließen in Umfangsrichtung um das Fadentragrohr 26 unmittelbar aneinander an. Im Bereich der ersten Haltefläche 70 liegt das Spannteil 61 in Umfangsrichtung und in Längsrichtung durchgehend flächig am Fadentragrohr 26 an, wenn die Halteeinrichtung 40 am Fadentragrohr 26 befestigt ist.Adjacent to the recess 58, the clamping part 41 has a first holding surface 70. The first holding surface 70 has a subsection 70a on the base body 59 and an adjoining subsection 70b on the support projection 60. The two partial sections 70a, 70b directly adjoin one another in the circumferential direction around the thread-carrying tube 26. In the area of the first holding surface 70, the clamping part 61 lies continuously in the circumferential direction and in the longitudinal direction flat on the thread support tube 26 when the holding device 40 is attached to the thread support tube 26.

Entsprechend der in Längsrichtung L gemessenen Breite des Grundkörpers 59 bzw. des Stützvorsprungs 60 ist die Breite des am Stützvorsprung 60 vorhandenen Teilabschnitts 70b der ersten Haltefläche kleiner als die des am Grundkörper vorhandenen Teilabschnitts 70a. Die Erstreckung der ersten Haltefläche 70 in Umfangsrichtung um das Fadentragrohr 26 ist in Figur 6 anhand des Pfeiles H1 schematisch veranschaulicht.Corresponding to the width of the base body 59 or the support projection 60 measured in the longitudinal direction L, the width of the subsection 70b of the first holding surface present on the support projection 60 is smaller than that of the subsection 70a present on the base body. The extent of the first holding surface 70 in the circumferential direction around the thread-carrying tube 26 is shown in FIG Figure 6 illustrated schematically by means of arrow H1.

Am Tragteil 42 grenzt eine zweite Haltefläche 71 an die Aussparung 58 an. Die zweite Haltefläche 71 erstreckt sich in Umfangsrichtung um das Fadendrangrohr entlang des gesamten zugeordneten gekrümmten Abschnitts 53 sowie zumindest abschnittsweise entlang der sich daran anschließenden Flachseiten 52 des Fadentragrohrs 26, wie dies schematisch durch den Pfeil H2 in Figur 6 veranschaulicht ist. Die zweite Haltefläche 71 des Tragteils 42 ist daher dem unteren gekrümmten Abschnitt 53 und die erste Haltefläche 70 des Spannteils 41 dem oberen gekrümmten Abschnitt 53 des Fadentragrohres 26 zugeordnet. Entlang der zweiten Haltefläche 71 liegt das Tragteil 42 in Umfangsrichtung und in Längsrichtung L flächig am Fadentragrohr 26 an, wenn die Halteeinrichtung 40 am Fadentragrohr 26 befestigt ist.A second holding surface 71 adjoins the recess 58 on the support part 42. The second holding surface 71 extends in the circumferential direction around the thread rope tube along the entire assigned curved section 53 and at least in sections along the adjoining flat sides 52 of the thread carrier tube 26, as shown schematically by the arrow H2 in FIG Figure 6 is illustrated. The second holding surface 71 of the support part 42 is therefore assigned to the lower curved section 53 and the first holding surface 70 of the tensioning part 41 is assigned to the upper curved section 53 of the thread-carrying tube 26. Along the second holding surface 71, the support part 42 rests flat on the thread support tube 26 in the circumferential direction and in the longitudinal direction L when the holding device 40 is attached to the thread support tube 26.

Beide Halteflächen 70, 71 liegen auf der Seite bezogen auf die Längsmittelebene M am Fadentragrohr 26 an, auf der sich die Zwischenstütze 39 befindet. Beispielsgemäß liegen die beiden Halteflächen 70, 71 auch auf der der Zwischenstütze 39 abgewandten Seite bezüglich der Längsmittelebene M am Fadentragrohr 26 an. Die beiden gekrümmten Abschnitte 53 des Fadentragrohrs 26 werden ausgehend von der Längsmittelebene M sowohl durch die erste Haltefläche 70, als auch durch die zweite Haltefläche 71 in Umfangsrichtung gesehen zu beiden Seiten hin flächig umgriffen. Zu diesem Zweck ist sowohl die erste Haltefläche 70, als auch die zweite Haltefläche 71 abschnittsweise gekrümmt ausgeführt und weist denselben Krümmungsradius R auf, wie die Außenfläche des zugeordneten gekrümmten Abschnitts 53 des Fadentragrohrs 26.Both holding surfaces 70, 71 rest on the thread support tube 26 on the side with respect to the longitudinal center plane M on which the intermediate support 39 is located. According to the example, the two holding surfaces 70, 71 also rest on the side facing away from the intermediate support 39 with respect to the longitudinal center plane M on the thread support tube 26. Starting from the longitudinal center plane M, the two curved sections 53 of the thread-carrying tube 26 are passed both through the first holding surface 70 and encompassed flatly on both sides by the second holding surface 71, seen in the circumferential direction. For this purpose, both the first holding surface 70 and the second holding surface 71 are designed to be curved in sections and have the same radius of curvature R as the outer surface of the associated curved section 53 of the thread-carrying tube 26.

Die zweite Haltefläche 71 liegt in Umfangsrichtung um das Fadentragrohr vollständig am zugeordneten gekrümmten Abschnitt 53 des Fadentragrohres an. Die erste Haltefläche 70 liegt in Umfangsrichtung ausgehend vom Krümmungsmittelpunkt P des zugeordneten gekrümmten Abschnitts 53 betrachtet in einem Winkelbereich W größer als 90° und beispielsgemäß in einem Winkelbereich W von 130° bis 140° an. Auf der der Zwischenstütze 39 abgewandten Seite bezüglich der Längsmittelebene M liegt die erste Haltefläche 70 in Umfangsrichtung um das Fadentragrohr 26 beispielsgemäß vollständig am zugeordneten gekrümmten Abschnitt 53 des Fadentragrohres 26 an. Dadurch ergibt sich ein Anlagewinkelbereich von beispielsgemäß etwa 40° bis 50° zwischen der ersten Anlagefläche 70 und dem gekrümmten Abschnitt 53 auf dessen durch die Längsmittelebene M begrenzten Seite, die der Zwischenstütze 39 zugewandt ist.The second holding surface 71 rests in the circumferential direction around the thread-carrying tube completely on the associated curved section 53 of the thread-carrying tube. The first holding surface 70 lies in the circumferential direction starting from the center of curvature P of the assigned curved section 53, viewed in an angular range W greater than 90 ° and, for example, in an angular range W of 130 ° to 140 °. On the side facing away from the intermediate support 39 with respect to the longitudinal center plane M, the first holding surface 70 rests in the circumferential direction around the thread-carrying tube 26, for example, completely against the associated curved section 53 of the thread-carrying tube 26. This results in a contact angle range of, for example, approximately 40 ° to 50 ° between the first contact surface 70 and the curved section 53 on its side which is delimited by the longitudinal center plane M and which faces the intermediate support 39.

Die beiden Halteflächen 70, 71 schließen nicht unmittelbar aneinander an. Das Spannteil 41 und das Halteteil 42 liegen daher in Umfangsrichtung nicht ununterbrochen am Fadentragrohr 26 an, sondern in den beiden Bereichen zwischen der ersten und der zweiten Haltefläche und vorzugsweise nur hier, kann ein Spalt zwischen der Halteeinrichtung 40 und dem Fadentragrohr 26 vorhanden sein.The two holding surfaces 70, 71 do not directly adjoin one another. The tensioning part 41 and the holding part 42 therefore do not lie continuously in the circumferential direction on the thread-carrying tube 26, but in the two areas between the first and the second holding surface, and preferably only here, a gap can be present between the holding device 40 and the thread-carrying tube 26.

Parallel zur Längsmittelebene M erstreckt sich quer zur Querrichtung Q und quer zur Längsrichtung L entlang der zugeordneten Flachseite 52 des Fadentragrohres 26 ein Stützschenkel 75 der Zwischenstütze 39. Die Zwischenstütze 39 weist an beiden gegenüberliegenden Enden in Querrichtung Q jeweils einen Stützschenkel 75 auf, wobei zwischen diesen beiden Stützschenkeln 75 ein Freiraum vorhanden ist, der einen Aufnahmebereich 76 für das Anordnen des wenigstens einen Distanzelements 48 und/oder 49 bildet. In Gebrauchslage, wenn die Stützeinrichtung 38 mit den beiden Halteeinrichtungen 40 an den Fadentragrohren 26 befestigt ist, liegen diese Stützschenkel 75 an der jeweils zugeordneten Stützfläche 66 des Stützvorsprungs 60 an. Über den Stützvorsprung 60 kann das Spannteil 41 der Halteeinrichtung 40 in Querrichtung Q eine Kraft aufnehmen, wobei sich das Spannteil 41 am Fadentragrohr 26 abstützt. Dadurch wird das wenigstens eine Distanzelement 48, 49 der Stützeinrichtung 38 daran gehindert, sich in Querrichtung Q aufgrund von Vibrationen und Erschütterungen beim Betrieb der Webmaschine 10 zu bewegen. Dies führt wiederum dazu, dass die durch das obere Distanzelement 48 in Querrichtung Q abgestützten und positionierten Kontaktschienen 28 in Querrichtung Q gegen Schwingungsbewegungen abgestützt sind. Über die Stützvorsprünge 60 der beiden Halteeinrichtungen 40 einer Stützeinrichtung 38 kann auf das Stützelement 39 und beispielsgemäß die Stützschenkel 75 und/oder das wenigstens eine dazwischen angeordnete Distanzelement 48, 49 eine Klemmkraft in Querrichtung Q ausgeübt werden, so dass das wenigstens eine Distanzelement 48, 49 in Querrichtung Q kraftschlüssig geklemmt gehalten ist, wenn sich die Spannelemente 43 der Halteeinrichtungen 40 der Stützeinrichtung 38 jeweils in ihrer Spannstellung befinden (Figuren 4 und 7).Extends parallel to the longitudinal center plane M transversely to the transverse direction Q and transversely to the longitudinal direction L along the associated flat side 52 of the thread carrying tube 26 is a support leg 75 of the intermediate support 39. The intermediate support 39 has a support leg 75 at both opposite ends in the transverse direction Q, with a free space between these two support legs 75 which has a receiving area 76 for the arrangement of the at least a spacer element 48 and / or 49 forms. In the position of use, when the support device 38 is fastened to the thread-carrying tubes 26 with the two holding devices 40, these support legs 75 rest on the respectively assigned support surface 66 of the support projection 60. The tensioning part 41 of the holding device 40 can absorb a force in the transverse direction Q via the support projection 60, the tensioning part 41 being supported on the thread-carrying tube 26. As a result, the at least one spacer element 48, 49 of the support device 38 is prevented from moving in the transverse direction Q due to vibrations and shocks during operation of the loom 10. This in turn means that the contact rails 28 supported and positioned in the transverse direction Q by the upper spacer element 48 are supported in the transverse direction Q against vibratory movements. A clamping force in the transverse direction Q can be exerted on the support element 39 and, for example, the support legs 75 and / or the at least one spacer element 48, 49 arranged in between, via the support projections 60 of the two holding devices 40 of a support device 38, so that the at least one spacer element 48, 49 is held non-positively clamped in the transverse direction Q when the clamping elements 43 of the holding devices 40 of the support device 38 are each in their clamping position ( Figures 4 and 7th ).

Alternativ oder zusätzlich zu der kraftschlüssigen Lagerung des wenigstens eines Distanzelementes 48, 49 über den Stützschenkel 75 der Zwischenstütze 39 könnte auch eine formschlüssige Verbindung zwischen dem Stützschenkel 75 und/oder dem wenigstens einen Distanzelement 48, 49 einerseits und der Stützfläche 66 des Stützvorsprungs 60 der Halteeinrichtung 40 andererseits vorgesehen sein.As an alternative or in addition to the non-positive mounting of the at least one spacer element 48, 49 via the support leg 75 of the intermediate support 39, a form-fit connection between the support leg 75 could also be used and / or the at least one spacer element 48, 49 on the one hand and the support surface 66 of the support projection 60 of the holding device 40 on the other hand.

Die Stützeinrichtung 38 kann nachträglich am Kettfadenwächter 13 angebracht werden. Die Montage wird wie folgt durchgeführt:
Zunächst wird an der Anbringungsstelle der Stützeinrichtung 38 eine Gasse zwischen den Kettfäden 12 gebildet. Anschließend wird das obere Distanzelement 48 an den Kontaktschienen 28 angeordnet. Das untere Distanzelement 49 wird an der Zwischenstütze 39 angeordnet.The support device 38 can be attached to the warp thread monitor 13 at a later date. The assembly is carried out as follows:
First of all, an alley is formed between the warp threads 12 at the attachment point of the support device 38. The upper spacer element 48 is then arranged on the contact rails 28. The lower spacer element 49 is arranged on the intermediate support 39.

Die durch die Spannschrauben 44 gebildeten Spannelemente 43 werden in ihre Lösestellung gebracht und die beiden Spannteile 41 werden von den Stützschenkeln 75 weggeschwenkt, so dass die Aussparung 58 zugänglich bzw. offen ist (Figur 6). Die beiden Halteeinrichtungen 40 können dann von unten an die beiden Fadentragrohre 26 angesteckt werden. Dabei wird das obere Distanzelement 48 mit den Stützschenkeln 75 der Zwischenstütze 39 und/oder dem unteren Distanzelement 49 verbunden.The clamping elements 43 formed by the clamping screws 44 are brought into their release position and the two clamping parts 41 are pivoted away from the support legs 75 so that the recess 58 is accessible or open ( Figure 6 ). The two holding devices 40 can then be plugged onto the two thread-carrying tubes 26 from below. The upper spacer element 48 is connected to the support legs 75 of the intermediate support 39 and / or the lower spacer element 49.

Nachfolgend werden die beiden Spannteile 41 um etwa 180 Grad geschwenkt, so dass ihre jeweilige Stützfläche 66 dem zugeordneten Stützschenkel 75 zugewandt ist. Die Spannelemente 43 werden anschließend in ihre Spannstellung gebracht. Beispielsgemäß geschieht dies durch ein Einschrauben der Spannschrauben 44 in das Innengewinde der zugeordneten Gewindehülse 62, wobei insbesondere ein vorgegebenes Anzugsdrehmoment eingehalten wird. Dabei wird die zweite Haltefläche 71 des Tragteils 42 von unten und die erste Haltefläche 70 des Spannteils 41 von oben gegen das zugeordnete Fadentragrohr 26 gespannt. Gleichzeitig gelangt die Stützfläche 66 des Stützvorsprungs 60 zur Anlage mit dem zugeordneten Stützschenkel 75 und stützt die beiden Distanzelemente 48, 49 über den Stützschenkel 75 in Querrichtung Q ab. Die Lage der Halteeinrichtungen 40 relativ zum Fadentragrohr 26 ergibt sich beim Anziehen der Spannschraube 44 automatisch. Es wird eine sichere, spielfreie Verbindung zwischen der Halteeinrichtung 40 mit dem Fadentragrohr 26 erreicht, die auch bei starken Vibrationen und Schwingungen der Webmaschine 10 fest am Fadentragrohr 26 positioniert und gehalten ist. Auf diese Weise wird der Verschleiß der Halteeinrichtung 40 reduziert.The two clamping parts 41 are then pivoted by approximately 180 degrees so that their respective support surface 66 faces the associated support leg 75. The clamping elements 43 are then brought into their clamping position. According to the example, this is done by screwing the tensioning screws 44 into the internal thread of the associated threaded sleeve 62, with a predetermined tightening torque being observed in particular. The second holding surface 71 of the support part 42 is tensioned from below and the first holding surface 70 of the tensioning part 41 from above against the associated thread-carrying tube 26. At the same time, the Support surface 66 of the support projection 60 for contact with the assigned support leg 75 and supports the two spacer elements 48, 49 via the support leg 75 in the transverse direction Q. The position of the holding devices 40 relative to the thread carrying tube 26 results automatically when the tensioning screw 44 is tightened. A secure, play-free connection is achieved between the holding device 40 and the thread-carrying tube 26, which connection is firmly positioned and held on the thread-carrying tube 26 even in the case of strong vibrations and oscillations of the loom 10. In this way, the wear on the holding device 40 is reduced.

Die Erfindung betrifft eine Halteeinrichtung 40 für eine Stützeinrichtung 38 eines Kettfadenwächters 13. Zu der Stützeinrichtung 38 gehört eine zwischen zwei parallelen Fadentragrohren 26 verlaufende Zwischenstütze 39, an der wenigstens ein Distanzelement 48, 49 angeordnet ist. Die Halteeinrichtung 40 weist ein Spannteil 41 mit einer ersten Haltefläche 70 und ein Tragteil 42 mit einer zweiten Haltefläche 71 auf. Die beiden Halteflächen 70, 71 grenzen an eine Aussparung 58 für das Fadentragrohr 26 an. Die beiden Halteflächen schließen in Umfangsrichtung um das Fadentragrohr 26 gesehen nicht unmittelbar aneinander an. Die Aussparung 58 ist dennoch in Umfangsrichtung um das Fadentragrohr 26 gesehen durch das Spannteil 41 und das Tragteil 42 vollständig geschlossen. Die beiden Halteflächen 70, 71 liegen in Umfangsrichtung und in einer Längsrichtung des Fadentragrohres 26 flächig am Fadentragrohr 26 an. Alternativ oder zusätzlich sind die Halteflächen 70, 71 derart angeordnet, dass sie zumindest abschnittsweise auf der Seite der Längsmittelebene M durch das Fadentragrohr 26 mit dem Fadentragrohr 26 in Kontakt stehen, auf der auch die Zwischenstütze 39 angeordnet ist.The invention relates to a holding device 40 for a support device 38 of a warp thread monitor 13. The support device 38 includes an intermediate support 39 running between two parallel thread support tubes 26 on which at least one spacer element 48, 49 is arranged. The holding device 40 has a clamping part 41 with a first holding surface 70 and a support part 42 with a second holding surface 71. The two holding surfaces 70, 71 adjoin a recess 58 for the thread support tube 26. The two holding surfaces do not directly adjoin one another as seen in the circumferential direction around the thread-carrying tube 26. The recess 58 is nevertheless completely closed by the tensioning part 41 and the supporting part 42 as seen in the circumferential direction around the thread carrying tube 26. The two holding surfaces 70, 71 lie flat on the thread-carrying tube 26 in the circumferential direction and in a longitudinal direction of the thread-carrying tube 26. Alternatively or additionally, the holding surfaces 70, 71 are arranged in such a way that they are in contact at least in sections on the side of the longitudinal center plane M through the thread support tube 26 with the thread support tube 26 on which the intermediate support 39 is also arranged.

Bezugszeichenliste:List of reference symbols:

1010
WebmaschineLoom
1111
StreichbaumString tree
1212
KettfadenWarp thread
1313
KettfadenwächterWarp thread monitor
1414th
LamelleLamella
1515th
WebschaftHeald frame
1616
SchussfadenWeft
1717th
RietAdvised
1818th
GewebekanteFabric edge
1919th
WarenabzugGoods deduction
2525th
BefestigungselementFastener
2626th
FadentragrohrSuture tube
2727
MaschinengestellMachine frame
2828
KontaktschieneContact rail
28a28a
erstes Schienenteilfirst rail part
28b28b
zweites Schienenteilsecond rail part
28c28c
Isolatorinsulator
2929
KontaktlamelleContact lamella
3030th
KettfadenlochWarp thread hole
3131
LamellenschlitzLamellar slot
3232
Schenkelleg
3333
elektrischer Anschlusselectrical connection
3838
StützeinrichtungSupport device
3939
ZwischenstützeIntermediate support
4040
HalteeinrichtungHolding device
4141
SpannteilClamping part
4242
TragteilSupport part
4343
SpannelementClamping element
4444
SpannschraubeClamping screw
4848
DistanzelementSpacer element
4949
DistanzelementSpacer element
5050
DistanzstegSpacer bar
5151
FührungsschieneGuide rail
5252
FlachseiteFlat side
5353
gekrümmter Abschnittcurved section
5858
AussparungRecess
5959
GrundkörperBase body
6060
StützvorsprungSupport protrusion
60a60a
erste Kantefirst edge
60b60b
zweite Kantesecond edge
6161
AnbringungsabschnittAttachment section
6262
GewindehülseThreaded sleeve
6363
BefestigungslochMounting hole
6464
RingschulterRing shoulder
6565
oberes Ende des Stützvorsprungsupper end of the support projection
6666
StützflächeSupport surface
6767
Absatzparagraph
7070
erste Halteflächefirst holding surface
70a70a
Teilabschnitt der Haltefläche am GrundkörperSection of the holding surface on the base body
70b70b
Teilabschnitt der Haltefläche am StützvorsprungPart of the holding surface on the support projection
7171
zweite Halteflächesecond holding surface
7575
StützschenkelSupport leg
7676
AufnahmebereichRecording area
AA.
ArbeitsrichtungWorking direction
EE.
KettfadenebeneWarp thread level
H1H1
Pfeilarrow
H2H2
Pfeilarrow
KK
KettfadenrichtungWarp direction
MM.
LängsmittelebeneLongitudinal median plane
PP
KrümmungsmittelpunktCenter of curvature
RR.
KrümmungsradiusRadius of curvature
SS.
SchwenkachseSwivel axis

Claims (14)

  1. Holding device (40) for an intermediate support (39) of a warp detecting device (13) of a loom (10),
    with a carrier part (42) and a clamping part (41) which can be fastened to the carrier part (42), which are configured for fastening to a thread carrier tube (26) of the warp detecting device (13),
    with a first holding face (70) on the clamping part (41) and a second holding face (71) on the carrier part (42) which adjoin a recess (58) for the thread carrier tube (26), wherein when a connection is created between the holding device (40) and the thread carrier tube (26), the first holding face (70) lies flat on the thread carrier tube (26), wherein the clamping part (41) has a base body (59) and a support protrusion (60) protruding away from the base body (59) and serving to support the intermediate support (39) and/or a spacer element (48, 49) mounted on the intermediate support (39),
    characterised in that
    - when a connection is created between the holding device (40) and the thread carrier tube (26), the second holding face (71) lies flat on the thread carrier tube (26), and/or
    - when a connection is created between the holding device (40) and the thread carrier tube (26), both holding faces (70, 71) engage on the thread carrier tube (26) on the side of the longitudinal centre plane (M) through the thread carrier tube (26) on which the intermediate support (39) is situated.
  2. Holding device according to claim 1, characterised in that when a connection is created between the holding device (40) and the thread carrier tube (26), the thread carrier tube (26) is completely surrounded by the clamping part (41) and the carrier part (42) in the recess (58).
  3. Holding device according to claim 1 or 2, characterised in that when a connection is created between the holding device (40) and the thread carrier tube (26), the first holding face (70) and/or the second holding face (71) runs curved at least in portions in a circumferential direction around the thread carrier tube (26) and each lies flat on the thread carrier tube (26) on the respective side of the longitudinal centre plane (M).
  4. Holding device according to any of the preceding claims, characterised in that the recess (58) delimited by the clamping part (41) and the carrier part (42) has a round or oval or elliptical contour.
  5. Holding device according to any of the preceding claims, characterised in that a clamping element (43) serves for fastening the clamping part (41) to the carrier part (41), and in a release position the clamping part (41) is mounted on the carrier part (42) so as to be pivotable about a pivot axis (S), and when a connection is created between the holding device (40) and the thread carrier tube (26), in a clamping position the respective holding faces (70, 71) of the clamping part (41) and the carrier part (42) clamp against the thread carrier tube (26).
  6. Holding device according to claim 5, characterised in that the pivot axis (S) runs through the thread carrier tube (26) with a slope with respect to the longitudinal centre plane (M) when the thread carrier tube (26) is arranged in the recess (58).
  7. Holding device according to claim 5 or 6, characterised in that the clamping element (43) is configured as a clamping screw (44) and is screwed into an internal thread (62) on the carrier part (42).
  8. Holding device according to one of claims 5 to 7, characterised in that on its free end (65) opposite the first holding face (70) of the clamping part (41), the support protrusion (60) has a support face (66) on which the intermediate support (39) and/or a spacer element (48/49) mounted on the intermediate support (39) rests when the clamping element (43) is in its clamping position and the connection is created between the holding device (40) and the thread carrier tube (26).
  9. Holding device according to any of the preceding claims, characterised in that the first holding face (70) is arranged at least partially on the base body (59) and partially on the support protrusion (60).
  10. Holding device according to any of the preceding claims, characterised in that when a connection is created between the holding device (40) and the thread carrier tube (26), the base body (59) measured in the longitudinal direction (L) of the thread carrier tube (26) is wider than the support protrusion (60).
  11. Holding device according to any of the preceding claims, characterised in that when a connection is created between the holding device (40) and the thread carrier tube (26), the support protrusion (60) measured in the longitudinal direction (L) of the thread carrier tube (26) is at most as wide as the intermediate support (39) and/or a spacer element (48, 49) mounted on the intermediate support (39).
  12. Holding device according to any of the preceding claims, characterised in that the carrier part (42) and the intermediate support (39) are configured as an integral unit.
  13. Support device (38) for a warp detecting device (13) for supporting at least one contact rail (28) of the warp detecting device (13), with an intermediate support (39) which extends in a transverse direction (Q) and at both ends has a respective holding device (40) according to any of the preceding claims.
  14. Support device (38) according to claim 13, characterised in that the intermediate support (39) and/or a spacer element (48, 49) mounted on the intermediate support (39) is loaded with a clamping force in the transverse direction (Q) between the two holding devices (40).
EP12183199.4A 2012-09-05 2012-09-05 Holding device for an intermediate support of a warp detecting device of a loom and support device with an intermediate support and two holding devices Active EP2706136B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12183199.4A EP2706136B1 (en) 2012-09-05 2012-09-05 Holding device for an intermediate support of a warp detecting device of a loom and support device with an intermediate support and two holding devices
CN201310396682.8A CN103668728B (en) 2012-09-05 2013-09-04 Holding device for intermediate support of warp detecting device of loom and support device with intermediate support and two holding devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12183199.4A EP2706136B1 (en) 2012-09-05 2012-09-05 Holding device for an intermediate support of a warp detecting device of a loom and support device with an intermediate support and two holding devices

Publications (2)

Publication Number Publication Date
EP2706136A1 EP2706136A1 (en) 2014-03-12
EP2706136B1 true EP2706136B1 (en) 2021-02-24

Family

ID=46758688

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Application Number Title Priority Date Filing Date
EP12183199.4A Active EP2706136B1 (en) 2012-09-05 2012-09-05 Holding device for an intermediate support of a warp detecting device of a loom and support device with an intermediate support and two holding devices

Country Status (2)

Country Link
EP (1) EP2706136B1 (en)
CN (1) CN103668728B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113930883A (en) * 2021-10-26 2022-01-14 安徽华泰纺织有限公司 Wear-resistant dropper box base

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1093425A (en) * 1953-04-10 1955-05-04 Grob & Co Ag Electric guard device for chain wires
CH480473A (en) * 1967-09-26 1969-10-31 Sulzer Ag Loom
US3584659A (en) * 1968-09-30 1971-06-15 Sulzer Ag Loom having a stop-motion mechanism
IT1183238B (en) * 1985-02-11 1987-10-15 Vamatex Spa ORDER CHAIN CONTROL DEVICE IN WEAVING FRAMES
JP2003313755A (en) * 2002-04-22 2003-11-06 Tsudakoma Corp Device for detecting selvage warp thread
DE502004003951D1 (en) * 2004-05-19 2007-07-12 Groz Beckert Kg Warp stopper for weaving machine
CN201933263U (en) * 2011-01-29 2011-08-17 雁峰集团有限公司 Device for automatically stopping plastic circular weaving machine when organzine is broken

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP2706136A1 (en) 2014-03-12
CN103668728B (en) 2017-04-12

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