Classifications

• • 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
• • 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
• • 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
  • D03D47/278—Guide mechanisms for pneumatic looms
• • 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
• • 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

Definitions

• the invention relates to a weaving machine according to the preamble of claim 1.
• the weft insertion means is understood here in its broadest form and includes e.g. such means as projectiles, grippers, shooters, air jets, or other media for inserting a weft thread into a shed formed from warp threads.
• Such weft insertion means are also known in large numbers.
• Weaving machines of the type mentioned at the outset are often high-performance weaving machines in which the weft insertion means enter and exit the weaving shed.
• guide elements are required, in which there are difficulties with the processing of warp threads from parallel yarns.
• Parallel yarns consist of a large number (at least two) of individual synthetic fibrils or fibers which are practically parallel to one another without rotation. So that the fibrils of these threads do not diverge, they are glued together by sizing or connected to each other in sections using an air swirling process. Yarns that are produced by air interlacing are called air interlaced or air entangled yarn.
• the object of the invention is to design a weaving machine of the type mentioned at the outset in such a way that parallel threads can also be processed, even if they are not provided with a size.
• the characterizing features of claim 1 prevent the parallel yarn is split on the guide elements and can get caught. This makes it possible to process parallel yarns even on modern high-performance weaving machines, even if they are not provided with a size. This means that parallel yarns that can be produced inexpensively can be processed and this on fast-running high-performance weaving machines. Furthermore, it is no longer necessary to subsequently wash out the size which is no longer present. The resulting cost advantages are obvious.
• the deflector is advantageously arranged on the reed tooth.
• the deflecting element must run downwards below a stop line of the reed, so that when the reed is struck against the stop edge of the fabric, the deflecting element is below the stop edge and thus does not impede the striking process.
• the deflection member preferably extends according to claim 2 to below the top of the guide element, but preferably to below the shed when the reed is in the position furthest from the stop edge of the fabric.
• the deflection of the warp threads is improved if the weaving machine is designed according to claim 5.
• the guide element according to claim 6 is independent of the reed tooth. is arranged and the deflector is formed in one piece with the reed tooth. Such training can take place according to claim 7. A simpler and lighter design results from the configuration according to claim 8.
• a reed tooth having the integrated guide element can be directly connected to the reed according to claim 9. In some cases, however, a configuration according to claim 10 can also be advantageous. However, it is also conceivable if the guide element is formed in two parts and one guide element part is arranged on the reed tooth and the other on a separate carrier.
• Figure 2 shows the reed with deflectors in
• Figure 3 shows the reed with deflectors
• FIG. 4 shows the weaving area of a second weaving machine in a side view
• Figure 5 shows the reed in section VV
• Figure 6 shows the reed with deflectors in
• FIG. 8 shows the weaving area of a third weaving machine in a side view
• FIG. 9 the weaving area of a fourth weaving machine in a side view
• Figure 10 shows the reed with deflection members and with guide elements in section X-X of Figure 9, on a larger scale;
• FIG. 11 shows the reed with deflection members and with guide elements in section XI-XI of FIG. 9, on a larger scale;
• FIG. 12 shows the weaving area of a fifth weaving machine in a side view
• Figure 13 shows the reed with deflectors in
• FIG. 14 the reed with deflection elements and with guide elements in section XIV-XIV of FIG. 12, on a larger scale.
• FIG. 1 shows the weaving area of a first weaving machine, which has a device 2 for forming a weaving shed 4 from warp threads 6. Of the device 2 for forming the shed, only strands 8 are shown which move the warp threads 6 up and down and thus open, close and change the shed.
• the warp threads 6 consist, for example, of parallel yarns which are produced in the air intermingling process and contain intermingling points as knots 10.
• the warp threads 6 are brought together at the stop edge 12, on which a weft thread, which has been inserted into the shed 4 but not shown, is struck by means of a reed 14 and is thus used to produce the fabric 16.
• the reed 14 consists of individual reed teeth 18 arranged in a reed division T, which are arranged in a lower carrier 20 and connected to one another at the upper end by a binding rod 22.
• the reed is firmly clamped on the leaf lever 23.
• Guide elements 24 are also arranged on the leaf lever 23 and are used to guide weft insertion means 26, which in the present case have an entry belt 28 which are guided between two groove-like recesses 30 in teeth 32, 34 of the guide element 24.
• the guide element 24 is arranged coplanar with the central plane M of an associated reed tooth 18a lying in the direction of movement, as can be seen in particular from FIG.
• a deflector 36 which is formed in one piece with the reed tooth 18a.
• the deflecting element for the warp threads 6 widens on both sides of the central plane M in the direction 38 of the weft thread course, so that starting from the reed tooth 18a it forms a wedge-shaped guide for the warp threads and moves them laterally past the guide elements 24 without the risk of that the warp threads get caught on the guide elements 24.
• the deflection member 36 begins below a stop line 40 of the reed 14 and extends at least over the top of the associated guide element 24, but preferably further downwards until it protrudes from the shed 4, as shown in FIG.
• the deflection member 36 is provided with tapered sections 42, 44 upwards and downwards in order to facilitate the deflection of the warp threads when entering and leaving the shed. In the stop position of the reed shown in dash-dotted lines in FIG. 1, the deflection element lies below the stop edge.
• the deflection member is preferably designed such that the greatest width B of the deflection member corresponds at least to the thickness d of the reed tooth and at most ten times the pitch T of the reed tooth.
• the length L of the deflection element in the direction of movement of the reed 14 is at least half the thickness d of the reed tooth 18a. In the example shown, the distance A between adjacent deflection members 36 corresponds to the double pitch T of the reed teeth 18.
• the reed tooth 18b consists of two parts 46 which are arranged in mirror image along the central plane M and which have thickened sections 48 to form the deflection element 36a.
• the reed tooth 18b is also along the central plane M divided and mirrored.
• the individual parts 50 consist of sheet metal and the deflection members 36b are formed by angled edge areas 52.
• FIGS. 4 to 7 show the weaving area of a further weaving machine, which is identical to the weaving machine of FIGS. 1 to 3 with regard to the weft insertion means 36.
• the area between the weaving tooth 56 and the guide element 54 is designed as a deflection element 58.
• the reed tooth 56 is not connected to the reed 60, but is carried by the guide element 54, which is attached to the reed lever 23.
• FIG. 8 shows a mixed form between the exemplary embodiment of FIGS. 1 to 3 and 4 to 7, the guide element 62 being subdivided into guide element parts 62a, 62b.
• the guide element part 62b is connected via a screw 64 to a separate carrier 66, which in turn is fastened to the leaf lever 23 of the reed.
• the other guide element part 62a forms an integral part of the reed tooth 68, the deflection element 70 again being arranged between the guide element part 62a and the reed tooth 68.
• FIGS. 9 to 11 show the weaving area of another weaving machine, the guide elements 72 being designed such that they use an air jet 74 as weft insertion means, which is blown into the guide elements 72 from staggered nozzles 76.
• Deflection elements 78 assigned to the guide elements 72 are formed in one piece with the associated reed tooth 80, in a manner analogous to the deflection element 36b of FIG. 3.
• FIGS. 12 to 14 show the weaving area of a further weaving machine which is constructed similarly to that of FIGS. 9 to 11, but in FIGS. 12 to 14 the guide elements elements 82 are integrally formed on a reed tooth 84 and the deflection elements 86 between the reed tooth 84 and the guide element 82 are formed.
• the relay nozzles 88 used for blowing in the air are fastened to a carrier 90, which in turn is fastened to the leaf lever 23 of the reed 14.
• the distance AI between adjacent guide elements 82 or the corresponding reed teeth 84 corresponds to the triple division T of the reed teeth 84 of the reed 14.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Looms (AREA)
• Surface Heating Bodies (AREA)
• Knitting Machines (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8006982

Family Applications (1)

Country Status (14)

Families Citing this family (7)

Family Cites Families (11)

• 1995
  • 1995-04-18 DE DE29506561U patent/DE29506561U1/de not_active Expired - Lifetime
• 1996
  • 1996-03-06 ES ES96903861T patent/ES2140065T3/es not_active Expired - Lifetime
  • 1996-03-06 CN CN96193335A patent/CN1045215C/zh not_active Expired - Fee Related
  • 1996-03-06 AU AU47817/96A patent/AU4781796A/en not_active Abandoned
  • 1996-03-06 DE DE59603715T patent/DE59603715D1/de not_active Expired - Fee Related
  • 1996-03-06 US US08/945,050 patent/US6044870A/en not_active Expired - Fee Related
  • 1996-03-06 AT AT96903861T patent/ATE186956T1/de not_active IP Right Cessation
  • 1996-03-06 CA CA002218494A patent/CA2218494C/fr not_active Expired - Fee Related
  • 1996-03-06 KR KR1019970707373A patent/KR100396475B1/ko not_active IP Right Cessation
  • 1996-03-06 TR TR97/01205T patent/TR199701205T1/xx unknown
  • 1996-03-06 BR BR9608076A patent/BR9608076A/pt not_active IP Right Cessation
  • 1996-03-06 EP EP96903861A patent/EP0822998B1/fr not_active Expired - Lifetime
  • 1996-03-06 WO PCT/CH1996/000077 patent/WO1996033304A1/fr active IP Right Grant
  • 1996-03-06 JP JP53137896A patent/JP3562816B2/ja not_active Expired - Fee Related
• 1998
  • 1998-09-10 HK HK98110554A patent/HK1009836A1/xx not_active IP Right Cessation

Non-Patent Citations (1)

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