EP1967624B1 - Webblatt für eine Webmaschine, Webmaschine die ein solches Webblatt umfasst und Herstellungsverfahren eines solchen Webblattes - Google Patents

Webblatt für eine Webmaschine, Webmaschine die ein solches Webblatt umfasst und Herstellungsverfahren eines solchen Webblattes Download PDF

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Publication number
EP1967624B1
EP1967624B1 EP08356036A EP08356036A EP1967624B1 EP 1967624 B1 EP1967624 B1 EP 1967624B1 EP 08356036 A EP08356036 A EP 08356036A EP 08356036 A EP08356036 A EP 08356036A EP 1967624 B1 EP1967624 B1 EP 1967624B1
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EP
European Patent Office
Prior art keywords
cover
lamella
cap
inclined surface
lamellae
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.)
Expired - Fee Related
Application number
EP08356036A
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English (en)
French (fr)
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EP1967624A1 (de
Inventor
Martin Burkert
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.)
Schoenherr Textilmaschinenbau GmbH
SCHONHERR TEXTILMASCHINENBAU GmbH
Original Assignee
Schoenherr Textilmaschinenbau GmbH
SCHONHERR TEXTILMASCHINENBAU GmbH
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Application filed by Schoenherr Textilmaschinenbau GmbH, SCHONHERR TEXTILMASCHINENBAU GmbH filed Critical Schoenherr Textilmaschinenbau GmbH
Publication of EP1967624A1 publication Critical patent/EP1967624A1/de
Application granted granted Critical
Publication of EP1967624B1 publication Critical patent/EP1967624B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay
    • D03D49/62—Reeds mounted on slay
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D39/00—Pile-fabric looms
    • D03D39/16—Double-plush looms, i.e. for weaving two pile fabrics face-to-face
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms

Definitions

  • the present invention relates to a loom comb, of the type comprising at least one cap provided with guides for inserting weft thread insertion means in a crowd and a row of lamellae integral with the cap.
  • the invention also relates to a loom comprising such a comb and to a method of manufacturing such a comb.
  • FR-A-2,886,951 describes a comb equipping a loom with two superposed layers, this comb comprising a row of slats capped at their ends by two caps with a U cross section, each U-shaped cap being secured to the ends of the slats by gluing.
  • One of the U-shaped hats has guide lugs for insertion of weft threads, these lugs being distributed according to the loom width of the loom.
  • Such a comb structure does not ensure optimum cohesion in operation between this cap and the slats, especially for high operating speeds of the loom.
  • the guide insertion lances directly by a comb cap it is subject to significant stresses that are likely to cause a disassociation of the cap relative to the slats.
  • the precise positioning of the lamellae and the cap with respect to the loom is then no longer ensured, which can cause appearance defects in the fabric and lead to collisions between the lances and lamellae, or between the lances and the wires. of chain.
  • US-A-1,449,686 discloses a loom comb comprising a row of slats, capped at their ends by two hats. Each end of a slat is provided with two lateral notches provided to cooperate with two corresponding ribs of the cap which cap this end.
  • the relative shape of the notches of the slats and the ribs of the cap causes an opening of the lateral branches of the hat.
  • the hat then tends to separate from the slats, with induced problems, as described above, in terms of quality of weaving and safety.
  • the opening effect of the branches of the cap and the risk of disengagement of the cap from the slats are furthermore likely to be reinforced when the cap is provided with guiding means for inserting weft son.
  • the invention more particularly intends to remedy by proposing a loom comb comprising at least one cap provided with guiding means for inserting weft threads and having an improved cohesion between its various components.
  • the subject of the invention is a loom comb, of the type comprising at least one cap provided with guiding means for insertion of weft threads into a shed and at least one row of integral slats. of the cap, the cap covering one end of each lamella, characterized in that the aforementioned end of at least one lamella having at least one inclined surface, with respect to a longitudinal axis of the aforementioned end, at an angle which is taken between, on the one hand, the portion of the longitudinal angle between the point of intersection of that axis with a center line of the plane of the inclined surface intersecting with that longitudinal axis and a transverse edge of the end of the lamella and, secondly, the portion of the director axis which is between the point of intersection and the inclined surface and which is between about 90 ° and 160 ° this inclined surface being arranged opposite 'a surface corresponding cap not parallel to the longitudinal axis of the end, the inclined surface being adapted to receive bearing the corresponding surface of the cap when it tend
  • the invention also relates to a loom comprising a comb as described above.
  • Such a manufacturing method may comprise an intermediate step in which is brought into surface contact at least one surface of each of the aforementioned ends provided with an inclined surface with a corresponding surface of the cap.
  • the bringing into contact of the surfaces of each of the abovementioned ends provided with an inclined surface and of the cap can be achieved by obtaining a volume expansion of a deformable tube which passes through an orifice, defined between the aforementioned end and the hat, whose section is expandable by a relative movement of the blade and the cap in the direction of contacting the inclined surface of the aforementioned end and the corresponding surface of the cap.
  • the volume expansion of the deformable tube may in particular be obtained by injecting a fluid under pressure into the tube.
  • each lamella of the row of lamellae is capped by sliding the cap relative to the ends of the lamellae, substantially parallel to a longitudinal axis of the row of lamellae.
  • the joining of the aforementioned end of each strip with the cap can be achieved by means of an adhesive material that is introduced into the cap at an orifice of the aforementioned end disposed in alignment with the orifices of the corresponding ends of the other lamellae, using a cannula which circulates inside the orifices aligned with the ends of the lamellae.
  • the loom comb 1 shown in FIG. figure 1 is, for example, intended to equip a loom with two superposed layers not shown, of the type described in FR-A-2,886,951 , which can be used for carpet weaving.
  • the comb 1 comprises a row of strips 3 juxtaposed, the two ends 31 and 33 of each strip 3 being capped respectively by a lower cap 5 and an upper cap 7 for the assembly of lamellae 3.
  • Y 3 is a longitudinal axis of the row of lamellae 3.
  • each lamella 3 is an elongate blade, cut from a flat sheet usually made of stainless steel and polished.
  • the shape of each lamella 3 is optimized in a manner similar to FR-A-2,886,951 , so that the comb 1 is curved with its concavity turned towards the weft striking points against the fabric being produced on the loom.
  • each lamella 3 comprises two substantially rectilinear elongated portions 3A and 3B, which form the two ends 31 and 33 of the lamella and are respectively centered on a longitudinal axis X 31 or X 33 of the corresponding end.
  • the X 31 and X 33 axes form between them an angle ⁇ of the order of 30 °. In practice, the angle ⁇ can be chosen between approximately 15 ° and 45 °.
  • Each strip 3 is delimited by two longitudinal edges 32 and two transverse edges 34.
  • 32a is noted the longitudinal edge 32 of each strip 3 which faces the weft strikes and 32b the longitudinal edge 32 which is turned to the healds not shown in the loom.
  • the two end plates 3 'of the end of the comb 1 are of similar geometry to the other strips 3 but have a greater thickness, so as to stiffen the structure of the comb 1.
  • the two caps 5 and 7 of the comb 1 are each formed by an extruded aluminum profile with a U cross-section.
  • the lower cap 5, which covers the lower end 31 of each strip 3, consists of two sections 51 and 53 to L-shaped cross sections arranged opposite one another.
  • the vertical branches 511 and 531 of the sections 51 and 53 in L form the two lateral branches of the U-shaped cap 5, whereas a horizontal branch 533 of the section 53 is able to fit into an internal groove 514 of the horizontal branch 513 of the profile 51 so as to form the bottom of the U-shaped cap 5.
  • the lower cap 5 is mounted on a wing 9 animated with a rapid reciprocating rotational movement allowing the comb 1 to come beat the weft son.
  • the cap 5 is immobilized in a groove 91 of the wing 9 by means of a wedge 8 held in place on the leaf 9 by means known per se and not shown, such as screws.
  • the jamming of the cap 5 inside the groove 91 makes it possible to secure, during operation, the interlocking of the sections 51 and 53.
  • the leaf 9 is equipped with tabs 93 for guiding the lower lances or inserting weft son of the loom.
  • the tabs 93 are arranged on the side of the comb 1 facing the weft striking points and are distributed according to the width of the loom of the loom.
  • each lamella 3 comprises a notch 36 defined by the edge 32b of the lamella and adapted to receive, with a clearance, an internal tooth 512 formed on the vertical leg 511 of the profile 51.
  • the tooth 512 received in the notch 36 constitutes an obstacle to the detachment of the lower cap 5 relative to the end 31 of the blade 3.
  • Each of the two branches 511 and 531 of the U-shaped cap 5 also has an internal clearance 515 or 535.
  • the internal openings 515 and 535 define between them a flared zone of the cap 5, adapted to receive a lower spring 4 for bracing the lamellae 3.
  • the cap 7 is provided, on the side of the cap facing the weft striking points, guide lugs 77 of the upper lances or insertion of weft son of the loom.
  • the upper tabs 77 are distributed, similarly to the lower tabs 93, according to the lug width of the loom, along a lateral rim 76 of the cap 7.
  • each lamella 3 received inside the upper cap 7 comprises two attachment teeth 35, symmetrical to each other with respect to the longitudinal axis X 33 of the end 33 and defined each by an external recess of the lamella 3, projecting from the main body of the coverslip.
  • Each tooth 35 is delimited by a longitudinal edge portion 32 defining a surface 321, inclined at an angle ⁇ relative to the axis X 33.
  • the inclined surface 321 is adjacent to a surface 323, substantially parallel to the X axis 33 and defined by the edge 32 at the main body of the strip 3.
  • Z is the point of intersection between the X axis 33 and the X axis 321 of the trace on the figure 3 of the plane of the surface 321 of a tooth 35.
  • the angle ⁇ of inclination of the surface 321 considered with respect to the X axis 33 is then taken between, on the one hand, the portion of the X axis 33 which is between the point Z and the transverse edge 34 of the end 33 and, secondly, the portion of the X axis 321 between the point Z and the trace of the surface 321 considered.
  • the angle ⁇ is of the order of 135 °. In practice, the angle ⁇ may be chosen between approximately 90 ° and 160 °.
  • the cap 7 is provided, in the vicinity of the ends of the branches 71, with two attachment teeth 75 adapted to cooperate with the teeth 35 of the end 33 of each lamella 3. More specifically, in the secured configuration of the cap 7 with the end 33 of each lamella 3, the two teeth 75 of the cap 7 are symmetrical to each other with respect to a central axis X 7 of the cap 7 coincides with the X axis 33 .
  • Each tooth 75 corresponds to an internal recess of the branch 71 of the associated cap 7, bounded by a surface 751, inclined at the aforesaid angle ⁇ relative to the axis X 7 , and a surface 753, substantially parallel to the X axis 7 .
  • each inclined surface 321 of the end 33 faces the corresponding inclined surface 751 of the cap 7, whereas each parallel surface 323 is opposite. of the parallel surface 753.
  • each lamella 3 with the exception of the two end plates 3 'of the end of the comb 1, is provided with two notches 38, defined by the longitudinal edges 32 and symmetrical to each other with respect to the X axis 33 .
  • the notches 38 define an area for receiving an upper spring 6 for bracing the lamellae 3 inside the cap 7, between the teeth 75 and the bottom 73 of the cap 7.
  • the end 33 of each lamella 3 is also provided with an upper notch 341, defined by the transverse edge 34 of the end 33 and arranged, in the mounted configuration of the cap 7 on the end 33, facing the rounded bottom 73 of the cap 7.
  • An orifice 12 of shape ovoid is thus defined between the bottom 73 of the cap 7 and the notch 341 of the end 33 of each lamella 3.
  • the end 33 is received with a clearance in the cap 7 and the section of the orifice 12 is adjustable by a relative movement of the blade 3 and the cap 7.
  • the section of the orifice 12 is expandable by a movement of spacing the notch 341 relative to the bottom 73, in the direction of a surface contacting of the inclined surfaces 321 and 751.
  • each lamella 3 also comprises a generally circular opening opening 37, housed inside the cap 7 in the mounted configuration of the cap 7 on the end 33.
  • a method of manufacturing the comb 1 according to the invention comprises steps in which:
  • the slats 3 are positioned in a row of juxtaposed slats, by strutting the slats by means of springs.
  • three spacer springs are used, namely a middle spring 2, arranged in a median region of each lamella 3, substantially at the junction between the portions 3A and 3B of each lamella, a lower spring 4 disposed at near the lower end 31 of each lamella 3, and an upper spring 6 disposed in the vicinity of the upper end 33 of each lamella 3.
  • the spacing of the lamellae 3 is formed over a length which is a function of the width of the lamella hoisting of the loom.
  • the profile 51 of the lower cap 5 is positioned in contact with the lower end 31 of each strip 3 of the row of braced lamellae, on one side of the row.
  • the end 31 of each strip 3 is of rectangular section and cooperates with the section 51 by the support of the longitudinal and transverse edges 32b respectively against the branches 511 and 513 of the section 51 L.
  • the positioning of the slats 3 relative to each other is then precisely defined, thanks to the contact of the end 31 with the two inner faces of the profile 51.
  • the notch 36 of each lamella 3 receives with play the tooth 512 of the section 51.
  • the lower spring 4 of spacer is housed in the internal clearance 515 of the profile 51.
  • Glue is then deposited along the row of braced strips 3, on the side of the row not covered by profile 51.
  • the profile 53 is then engaged with respect to profile 51, by sliding branch 533 of profile 53 to the inside of the groove 514 of the profile 51 in the direction of the arrow F 0 of the figure 2 . This sliding continues until the longitudinal edge 32a of each strip 3 is in contact with the branch 531 of the section 53. The contact is maintained between the end 31 of each strip 3 and the two sections 51 and 53 components of the lower cap 5, and the adhesive is allowed to polymerize so as to obtain a rigid attachment of the lower end 31 of each lamella 3 inside the cap 5.
  • a surface of the notch 36 is suitable to support a surface of the tooth 512 when the cap 5 tends to be moved in a detachment direction with respect to the end 31 of each lamella 3.
  • the direction of detachment of the cap 5 away from each lamella 3 is substantially parallel to the X axis 31 .
  • the upper cap 7 is put in place at the ends 33 of the braced lamellae.
  • the cap 7 is slid with respect to the ends 33 of the lamellae 3 arranged in a row, substantially parallel to the longitudinal axis Y 3 of the row of lamellae, that is to say substantially perpendicular to the plane of each lamella 3, as shown by the arrow F 3 of the figure 1 .
  • the teeth 35 of the lamellae 3 are thus successively engaged with the teeth 75 of the cap 7.
  • the clearance between the teeth 35 and 75 is made up by inserting a deformable tube 10 into the orifice 12 defined between the rounded bottom 73 of the cap 7 and the notch 341 of each strip 3, then obtaining a volume expansion of the tube 10, which in this example is made of plastic material, by injection of a fluid under pressure in the tube, for example by injection of air at a pressure of about 10 bar.
  • the volume expansion of the tube 10 generates a thrust force P on the transverse edge 34 of each strip 3, at the notch 341, away from the bottom 73 of the cap 7. Due to the symmetry by relative to the X axis 33 of the contact surface of the notch 341 with the tube 10, the force P is directed generally along the X axis 33 .
  • the force P brings the two inclined surfaces 321 of each strip 3 into contact with the inclined surfaces 751 of the cap 7.
  • the tube 10 can be placed inside the notches 341 of the lamellae 3 prior to the sliding of the cap 7 around the lamellae 3 and the tube 10.
  • the thrust force P is reflected at the surfaces 321 and 751 by a resultant force R, exerted by each surface. 321 on the corresponding surface 751, substantially perpendicular to these surfaces, on either side of the X axis 33 .
  • the force R exerted by a surface 321 on the associated surface 751 comprises a component R a , parallel to the X axis 33 , and a component R b , perpendicular to the X axis 33 .
  • the component R b of the force R is directed towards the X axis 33 and tends to apply each parallel surface 753 of the cap 7 against the corresponding parallel surface 323 of the strip 3, by deformation under flexion of each branch 71 of the cap 7.
  • the branches 71 are thus tightened around the end 33 of each lamella 3 under the effect of the force P, the fastening configuration of the cap 7 with respect to each lamella 3 being obtained when there is contact, on the one hand, between each pair of inclined surfaces 321 and 751 facing each other and between each pair of parallel surfaces 353 and 753 facing each other.
  • An operating clearance is maintained between the cap 7 and the lamellae 3 outside these pairs of surfaces, so as not to upset the bringing into contact of these functional surfaces.
  • an adhesive material in particular an adhesive
  • a cannula which circulates inside the orifices 37 aligned.
  • the use of such a cannula ensures good diffusion of the glue inside the cap 7.
  • the cannula is moved with a controlled speed, for example from the middle of the row 3, along one half of the row, then along the other half of the row of slats.
  • the cannula can be moved inside the orifices 37 of the lamellae 3 over the entire length of the comb 1.
  • the glue spreads between the strips 3 braced by the springs 2, 4 and 6 and in the interstices that exist between the strips 3 and the cap 7. However, because of the teeth 75 and the U-shaped geometry of the cap 7, the glue remains confined in the closed space defined by the cap 7 in contact with the slats 3, which allows bonding without burrs.
  • the tube 10 is kept under pressure until polymerization of the glue.
  • the end 33 of each lamella 3 is fixed rigidly relative to the cap 7, the inclined surfaces 321 and the parallel surfaces 323 being respectively in contact with the inclined surfaces 751 and the corresponding parallel surfaces 753 of the cap 7 .
  • the fastening between the cap 7 and each end plate 3 ' which is in contact with the glue only on one side, can be reinforced by rivets engaged in the cap 7 and in the thickness of the lamella 3 '.
  • 3 'end slats can also be reported on each side of the row of slats 3 after gluing the slats 3 relative to the cap 7, and be secured to the cap 7 only by riveting.
  • the positioning of the lamellae 3 with respect to each other is fixed. It is then possible to remove the middle spacer spring 2 from the row of lamellae 3.
  • the other two spacer springs 4 and 6, as well as the deformable tube 10, are embedded in the assembly at both ends 31 and 33. 3 and are part of the structure of the comb 1.
  • the springs 4 and 6 and the tube 10 are lightweight parts, which do not affect the lightness of the structure of the comb 1.
  • the handling of parts during the manufacturing process described above is adapted to the forces to be applied to the parts, the desired deformation of the parts and a good distribution of the glue, for example under the effect of gravity.
  • each inclined surface 321 of a strip 3 is adapted to receive bearing the corresponding surface 751 of the cap 7, when the latter tends to be moved in a detachment direction of the cap 7 relative to the end 33 of the blade 3.
  • each pair of surfaces 321 and 751 opposes the detachment of the cap 7 away from the blade 3 to the times for a detachment direction of the cap 7 substantially parallel to the X axis 33 , as shown by the arrow F 1 of the figure 3 , and for a detachment direction of the cap 7 substantially perpendicular to the X axis 33 , oriented in a direction from the X axis 33 to a surface 321 and its corresponding surface 751, as shown by each arrow F 2 of the figure 3 .
  • Each inclined surface 321 of a strip 3 is capable of exerting on the corresponding surface 751 of the cap 7 a force R, of which a first component R a is opposed to a detachment force of the cap 7, with respect to the strip 3, directed in the direction F 1 substantially parallel to the axis X 33 , while a second component R b opposes a detachment force of the cap 7, relative to the blade 3, directed in the direction F 2 substantially perpendicular to the X axis 33 .
  • the cooperation between the parallel surfaces 323 and 753 also opposes the detachment force of the cap 7 with respect to the lamellae 3 in the direction F 2 .
  • the structure of the comb 1 according to the invention provides an obstacle to the detachment of the cap 7 with respect to each lamella 3 of the row of lamellae in all the directions of the plane of the lamella 3.
  • the angle ⁇ is chosen between 90 ° and 160 °, and more precisely strictly greater than 90 °, the cooperation of the inclined surfaces 321 and 751 in the event of a tearing force of the cap 7 along the direction F 1 substantially parallel to the axis X 33 tends to tighten the branches 71 of the cap 7 around the strips 3, which contributes to improve the holding of the cap 7 relative to the strips 3.
  • the cap 7 is in contact with the surfaces 321 of each strip 3 which are oriented to accommodate the centrifugal forces of the cap 7 during the rapid movement of the wing 9.
  • the glue is thus discharged , which strengthens the holding of the comb 1.
  • the teeth 35 of each lamella 3 are formed by protrusions protruding from the main body of the lamella 3, the structure of each lamella is not weakened.
  • the one-piece structure of the upper cap 7 allows this hat to resist, in operation, the forces and vibrations that are particularly important in the part of the comb 1 furthest from the leaf 9.
  • the aluminum structure of the cap 7 also gives it a sufficient rigidity not to deform in operation and to avoid any movement between the surfaces in contact, likely to deteriorate the parts.
  • the method of manufacturing the comb 1 according to the invention allows precise positioning of the slats 3 with respect to the two hats 5 and 7, as well as with respect to the wing 9 and the loom. This results in control of the position of the guide tabs 77 and 93, and therefore the insertion channels of the lances with respect to the loom, over the entire width of the loom, which guarantees a good quality of the fabric. produced on the loom.
  • each strip 3 with respect to the upper cap 7 by contact between the two pairs of inclined surfaces 321 and 751 symmetrical about the X axis 33 , ensures the orientation of each strip 3 with respect to the wires.
  • the slats 3 are thus parallel to the warp son and perpendicular to the crossing plane of the warp son during shed openings, which allows to minimize the frictional forces on the son.
  • the contact of surfaces 321 and 323 of each strip 3, not parallel to each other, with the cap 7 precisely positions the guide tabs 77 and the insertion channel of the upper lances with respect to the contour of the strip 3 in the plan of this lamella.
  • the introduction of the cap 7 by sliding around the ends 33 of the slats 3 followed by a catch-up clearance between the teeth 35 and 75, rather than by deformation of the cap 7 over the row of slats 3, allows to select a rigid constituent material, such as aluminum, for the cap 7.
  • the cap 7 can then be slightly deformed to reach its configuration of attachment to the lamellae 3 but, once secured to the lamellae, has sufficient rigidity to retain its geometry in operation.
  • the positioning accuracy of the component parts of the comb 1 relative to each other is guaranteed in operation.
  • the guide tabs 93 and the insertion channel of the lower lances are positioned precisely relative to the contour of each lamella 3.
  • the insertion position of each weft yarn on the loom is well controlled even for insertion levels remote from each other. Friction and the risk of snagging between lances and slats or between lances and warp son are reduced.
  • the introduction of the cap 7 by sliding around the ends 33 of the lamellae 3 makes it possible to size the inclined surfaces 321 and 751 so as to obtain a good positioning of the cap 7 with respect to each lamella 3, while being compatible with the forces exerted in operation at the interface between the slats 3 and the cap 7, unlike placing the cap 7 by deformation over the row of slats 3, which would impose reduced interaction surfaces between the cap 7 and the slats 3.
  • the upper spring 6 spacing lamellae 3 which is responsible for maintaining a regular spacing between the slats 3 as the cap 7 is not secured by gluing with the slats 3, is protected to the inside the cap 7 and can not be deformed during the fastening of the cap 7 with the slats 3.
  • the invention is not limited to the example described and shown.
  • the invention has been illustrated with substantially planar contact surfaces.
  • the inclined surfaces 321 and 751 may be curved surfaces.
  • the angle of inclination of a curved surface with respect to the longitudinal axis of the end of the lamella is then defined by the average angle of inclination of the curved surface with respect to this longitudinal axis.
  • the inclined surfaces 321 and 751 may not be immobilized in contact but arranged facing each other, in order to ensure relative support of these surfaces when the cap 7 is moved in a direction F 1 or F 2 detachment with respect to lamellae 3.
  • the caps 5 and 7 of the comb 1 may be of different cross-sections of a U-shaped section.
  • the upper cap 7 may be replaced by a half-hat, which does not cover One side of each lamella 3.
  • Each lamella 3 then has only one tooth 35 forming an obstacle to the detachment of the half-cap relative to each lamella 3, which is preferably located on the side of the guide lugs of the lances. insertion of weft threads.
  • the teeth 35 of each lamella 3 may not be formed protruding from the main body of the lamella, but cut into the body of the lamella.
  • the contacting of the upper cap 7 with the strips 3 before their joining can also be obtained by means other than pressurizing the tube 10 passing through the orifice 12 with an expandable section.
  • the contacting forces may be exerted by an inner or outer device to the cap 7, for example a device for pulling the cap relative to the lamellae.
  • the same device can also ensure both the contact of the upper cap 7 with the slats 3, for their attachment, and the fastening of the cap 7 with the slats 3, for example by means of setscrews engaged in tapping the cap 7 and adapted to apply a spacing force between the cap 7 and a long and rigid piece placed in contact with the notches 341 of the slats 3.
  • the orifice 12 defined between the bottom 73 of the cap 7 and the notch 341 of each lamella 3 can then have a different shape of an ovoid shape.
  • the introduction of glue inside the cap 7 may be performed prior to the introduction of the cap 7 around the slats 3 by sliding, an adhesive of suitable characteristics being then chosen.
  • the guide tabs of the weft insertion lances can be supported by the two upper caps 7 and lower 5 of the comb 1, or only by the lower cap 5.
  • a A loom according to the invention can then be a profession with one or more insertion levels.
  • only some lamellae 3 of the comb 1 may have inclined surfaces 321 adapted to cooperate with the corresponding surfaces 751 of the cap 7 to secure the cap 7 around the row of lamellae 3.

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Claims (21)

  1. Webblatt (1) einer Webmaschine des Typs, der mindestens einen Ladendeckel (7) aufweist, der mit Führungsorganen (77) für Mittel zum Einführen von Schussfäden in ein Fach und mit mindestens einer Reihe von Lamellen (3) ausgerüstet ist, die mit dem Ladendeckel (7) verbunden sind, wobei der Ladendeckel (7) ein Ende (33) jeder Lamelle (3) überdeckt, dadurch gekennzeichnet, dass:
    - das Ende (33) mindestens einer Lamelle (3) mindestens eine Fläche (321) aufweist, die in Bezug auf eine Längsachse (X33) des Endes (33) gemäß einem Winkel (α) geneigt ist, der zwischen einerseits dem Teil der Längsachse (X33), der eingeschlossen ist zwischen dem Schnittpunkt (Z) dieser Achse mit einer richtunggebenden Achse (X321) der Ebene der geneigten Fläche (321), die sich mit dieser Längsachse (X33) schneidet, und einer Querkante (34) des Endes (33) und andererseits dem Teil der richtunggebenden Achse (X321), der eingeschlossen ist zwischen dem Schnittpunkt (Z) und der geneigten Fläche (321) definiert ist, und der zwischen ungefähr 90° und 160° liegt,
    - die geneigte Fläche (321) gegenüberstehend zu einer korrespondierenden Fläche (751) des Ladendeckels (7), die nicht parallel zu der Achse (X33) ist, angeordnet ist,
    - die geneigte Fläche (321) geeignet ist, in Auflage die korrespondierende Fläche (751) des Ladendeckels (7) aufzunehmen, wenn diese dazu neigt, gemäß einer Richtung (F1) des Loslösens des Ladendeckels (7) in Bezug auf die Lamelle (3), die im Wesentlichen parallel in Bezug auf die Achse (X33) ist, verschoben zu werden und
    - die geneigte Fläche (321) darüber hinaus geeignet ist, sich einer Kraft zum Lösen des Ladendeckels (7) in Bezug auf die Lamelle (3) entgegenzusetzen, die gemäß einer Richtung (F1) im Wesentlichen parallel in Bezug auf die Achse (X33) gerichtet ist.
  2. Webblatt nach Anspruch 1, dadurch gekennzeichnet, dass die oder jede geneigte Fläche (321) des Endes (33) geeignet ist, ein Nachspannen des Teils (71) des Ladendeckels (7), der die korrespondierende Fläche (751) umfasst, um die Lamelle (3) herum zu induzieren, wenn die korrespondierende Fläche (751) des Ladendeckels (7) dazu neigt, gemäß einer Richtung (F1) des Lösens des Ladendeckels (7) in Bezug auf die Lamelle (3) im Wesentlichen parallel in Bezug auf die Achse (X33) verschoben zu werden, und wobei die geneigte Fläche (321) und die korrespondierende Fläche (751) in Abstützung sind.
  3. Webblatt nach einem beliebigen der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die geneigte Fläche (321) des Endes (33) gemäß einem Winkel (α) streng größer als 90° in Bezug auf diese Achse (X33) geneigt ist.
  4. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die geneigte Fläche (321) des Endes (33) geeignet ist, in Auflage die korrespondierende Fläche (751) des Ladendeckels (7) aufzunehmen, wenn diese dazu neigt, gemäß einer Richtung (F2) des Lösens des Ladendeckels (7) in Bezug auf die Lamelle (3) im Wesentlichen senkrecht in Bezug auf diese Achse (X33) verschoben zu werden.
  5. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die geneigte Fläche (321) des Endes (33) im Flächenkontakt mit der korrespondierenden Fläche (751) des Ladendeckels (7) ist.
  6. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ende (33) mindestens eine erste (321) und eine zweite (323) Fläche umfasst, die untereinander nicht parallel sind und die jeweils im Flächenkontakt mit einer ersten (751) und einer zweiten (753) korrespondierenden Fläche des Ladendeckels (7) sind.
  7. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die geneigte Fläche (321) des Endes (33) durch einen Kantenbereich (32) der Lamelle (3) an einem zu einem Hauptkörper der Lamelle hervorspringenden Zahn (35) definiert ist.
  8. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ende (33) zwei geneigte Flächen (321) umfasst, die beidseitig der Achse (X33) vorgesehen sind.
  9. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ende (33) und der Ladendeckel (7) zwischen sich eine Öffnung (12) mit einem Querschnitt definieren, der durch eine relative Bewegung der Lamelle (3) und des Ladendeckels (7) in die Richtung eines in Kontaktbringen der geneigten Fläche (321) des Endes (33) und der korrespondierenden Fläche (751) des Ladendeckels (7) ausdehnbar ist.
  10. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es eine Feder (6) zum Versteifen der Lamellen (3) umfasst, die im Inneren des Ladendeckels (7) zwischen mindestens einem Innenzahn (75) und einem Boden (73) des Ladendeckels (7) angeordnet ist.
  11. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es ein Klebematerial umfasst, das das Ende (33) jeder Lamelle (3) mit dem Ladendeckel (7) fest verbindet.
  12. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ende (33) jeder Lamelle (3) eine freie Öffnung (37) aufweist, die in Ausrichtung mit Öffnungen (37) der korrespondierenden Enden (33) der anderen Lamellen (3) angeordnet ist.
  13. Webblatt nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen zweiten Ladendeckel (5) umfasst, der ein zweites Ende (31) jeder Lamelle (3) bedeckt, wobei das zweite Ende (31) mindestens einer Lamelle ein Relief (36) aufweist, das durch eine Längskante (32) der Lamelle definiert ist, die mit einem komplementären Innenrelief (512) des zweiten Ladendeckels (5) zusammenarbeitet, derart, dass eine Fläche des Reliefs (36) der Lamelle (3) geeignet ist, in Auflage eine Relieffläche (512) des zweiten Ladendeckels (5) aufzunehmen, wenn dieser dazu neigt, gemäß einer Richtung des Loslösens des zweiten Ladendeckels (5) in Bezug auf die Lamelle (3) verschoben zu werden.
  14. Webblatt nach Anspruch 13, dadurch gekennzeichnet, dass der zweite Ladendeckel (5) von zwei Profilen (51, 53) gebildet wird, die ineinander greifen.
  15. Webmaschine, dadurch gekennzeichnet, dass sie ein Webblatt (1) nach einem beliebigen der vorhergehenden Ansprüche umfasst.
  16. Verfahren zum Herstellen eines Webblattes (1) einer Webmaschine nach einem beliebigen der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass es Schritte umfasst, bei denen:
    - man das Ende (33) jeder Lamelle (3) der Reihe von Lamellen mit einem Ladendeckel (7) überdeckt, indem die geneigte Fläche (321) der Enden (33), die mit einer geneigten Fläche (321) versehen sind, in Gegenüberstellung zu der korrespondierenden Fläche (751) des Ladendeckels (7) angeordnet wird;
    - man das Ende (33) jeder Lamelle (3) mit dem Ladendeckel (7) verbindet.
  17. Verfahren nach Anspruch 16, dadurch gekennzeichnet, dass es einen Zwischenschritt umfasst, bei dem:
    - man mindestens eine Fläche (321, 323) von jedem der Enden (33), die mit einer geneigten Fläche (321) versehen sind, mit einer korrespondierenden Fläche (751, 753) des Ladendeckels (7) in Flächenkontakt setzt.
  18. Verfahren nach Anspruch 17, dadurch gekennzeichnet, dass man die Flächen (321, 751, 323, 753) jeder der Enden (33), die mit einer geneigten Fläche (321) versehen sind, und des Ladendeckels (7) in Kontakt bringt, indem eine Volumenexpansion eines verformbaren Rohres (10) erhalten wird, das durch eine Öffnung (12) hindurchgeht, die zwischen dem Ende (33) und dem Ladendeckel (7) definiert ist und deren Querschnitt durch eine relative Bewegung der Lamelle (3) und des Ladendeckels (7) in Richtung einer Inkontaktbringung der geneigten Fläche (321) des Endes (33) und der korrespondierenden Fläche (751) des Ladendeckels (7) expansibel ist.
  19. Herstellungsverfahren nach Anspruch 18, dadurch gekennzeichnet, dass man eine Volumenexpansion des deformierbaren Rohres (10) bekommt, indem ein unter Druck stehendes Fluid in das Rohr (10) injiziert wird.
  20. Verfahren nach einem beliebigen der Ansprüche 16 bis 19, dadurch gekennzeichnet, dass man das Ende (33) jeder Lamelle (3) der Reihe von Lamellen überdeckt, indem man den Ladendeckel (7) in Bezug auf die Enden (33) der Lamellen (3) im Wesentlichen parallel zu einer Längsachse (Y3) der Reihe von Lamellen (3) gleiten lässt (F3).
  21. Verfahren nach einem beliebigen der Ansprüche 16 bis 20, dadurch gekennzeichnet, dass man das Ende (33) jeder Lamelle (3) mit dem Ladendeckel (7) mittels eines Klebematerials verbindet, das man in den Ladendeckel (7) an einer Öffnung (37) des Endes (33) einführt, die in Ausrichtung mit den Öffnungen (37) der korrespondierenden Enden (33) der anderen Lamellen (3) angeordnet ist, mit Hilfe einer Kanüle, die im Inneren der ausgerichteten Öffnungen (37) der Enden (33) der Lamellen (3) zirkuliert.
EP08356036A 2007-03-07 2008-03-06 Webblatt für eine Webmaschine, Webmaschine die ein solches Webblatt umfasst und Herstellungsverfahren eines solchen Webblattes Expired - Fee Related EP1967624B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0701655A FR2913435B1 (fr) 2007-03-07 2007-03-07 Peigne de metier a tisser, metier a tisser comprenant un tel peigne et procede de fabrication d'un tel peigne.

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EP1967624A1 EP1967624A1 (de) 2008-09-10
EP1967624B1 true EP1967624B1 (de) 2010-06-02

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EP (1) EP1967624B1 (de)
CN (1) CN101260592B (de)
DE (1) DE602008001389D1 (de)
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RU (1) RU2467104C2 (de)

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CN102330257A (zh) * 2011-07-18 2012-01-25 吴江市锦邦纺织品有限公司 一种带快速拆卸结构的钢筘
EP3067451A1 (de) * 2015-03-10 2016-09-14 Groz-Beckert KG Verfahren und vorrichtung zur herstellung eines webblatts und webblatt
CN107052093A (zh) * 2017-06-19 2017-08-18 苏州谭西纺织科技有限公司 一种筘片自动校平装置
EP3425095B1 (de) * 2017-07-07 2020-09-30 Groz-Beckert KG Webblatt und verfahren zu dessen herstellung

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US990528A (en) * 1910-03-17 1911-04-25 Ware Machine & Loom Company Reed.
US1449686A (en) * 1920-09-24 1923-03-27 Christopher T Mace Reed for weaving looms
FR1551284A (de) * 1967-12-15 1968-12-27
FR2033444A5 (en) * 1969-02-25 1970-12-04 Burckle Et Cie Plastics-welded loom reeds
US4529014A (en) * 1983-08-29 1985-07-16 Steel Heddle Mfg., Co. Loom reed with plastic profiled dents
IT1266634B1 (it) * 1993-10-27 1997-01-09 Nuovo Pignone Spa Pettine perfezionato per telaio tessile ad aria
DE29506561U1 (de) * 1995-04-18 1995-06-08 Textilma Ag Webmaschine
US6039088A (en) * 1998-09-30 2000-03-21 Steel Heddle Manufacturing Co. Reed assembly with angled dents
JP2000234242A (ja) * 1998-12-10 2000-08-29 Toyota Autom Loom Works Ltd レピア織機用ホイール
SE0004393D0 (sv) * 2000-11-29 2000-11-29 Pharmacia Groningen Bv A device for use in eye surgery
JP3961318B2 (ja) * 2002-03-14 2007-08-22 株式会社豊田中央研究所 エアジェットルーム用の変形筬
JP2004197280A (ja) * 2002-12-20 2004-07-15 Tsudakoma Corp 製織用筬
FR2886951B1 (fr) * 2005-06-08 2007-08-31 Schonherr Textilmaschb Gmbh Dispositif d'insertion de fils de trame pour metier a deux nappes superposees et metier a tisser equipe d'un tel dispositif

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FR2913435A1 (fr) 2008-09-12
DE602008001389D1 (de) 2010-07-15
CN101260592B (zh) 2013-04-24
EP1967624A1 (de) 2008-09-10
RU2467104C2 (ru) 2012-11-20
CN101260592A (zh) 2008-09-10
RU2008108847A (ru) 2009-09-20
FR2913435B1 (fr) 2009-12-04

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