EP0014601A1 - Verbesserte Netzknotmaschine - Google Patents

Verbesserte Netzknotmaschine Download PDF

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Publication number
EP0014601A1
EP0014601A1 EP80400002A EP80400002A EP0014601A1 EP 0014601 A1 EP0014601 A1 EP 0014601A1 EP 80400002 A EP80400002 A EP 80400002A EP 80400002 A EP80400002 A EP 80400002A EP 0014601 A1 EP0014601 A1 EP 0014601A1
Authority
EP
European Patent Office
Prior art keywords
net
shuttles
needles
knotting
bar
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.)
Granted
Application number
EP80400002A
Other languages
English (en)
French (fr)
Other versions
EP0014601B1 (de
Inventor
François Zang
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT80400002T priority Critical patent/ATE1510T1/de
Publication of EP0014601A1 publication Critical patent/EP0014601A1/de
Application granted granted Critical
Publication of EP0014601B1 publication Critical patent/EP0014601B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04G—MAKING NETS BY KNOTTING OF FILAMENTARY MATERIAL; MAKING KNOTTED CARPETS OR TAPESTRIES; KNOTTING NOT OTHERWISE PROVIDED FOR
    • D04G1/00—Making nets by knotting of filamentary material
    • D04G1/02—Making nets by knotting of filamentary material in machines
    • D04G1/08—Making nets by knotting of filamentary material in machines using two series of threads

Definitions

  • the invention relates to net weaving machines in which a multiplicity of shuttle threads and a multiplicity of beam threads are knotted two by two to form stitches by means of rows of movable needles, notably comprising hook which pass each beam wire around the corresponding shuttle.
  • such machines include a row of eyelet needles through which the beam yarns pass and cause the latter to form at least one loop around first and second needles aligned in two other rows.
  • said hook needles also aligned in a row, attract the warp threads through the loops they form and pass them around the shuttles, so that these threads, after leaving the hook needles, pass around the shuttle wires, and exert a traction on them when tightening the knots (see French patent n ° 72/46 187).
  • the finished net is evacuated step by step, after each operation of making a row of knots, between the facing faces of two flat bars parallel to the rows of needles and located immediately downstream of the knotting level, the rear flat bar being fixed, that the cradle carrying the shuttles is controlled to move away and approach alternately from the knotting area, before passage of the beam wires around the shuttles, and that the front flat bar is mobile and is controlled mechanically, in a clocked manner, to apply against the rear bar and pinch the net to immobilize it during the operation of making a row of knots, then to move away from the rear bar to allow the subsequent evacuation of the net.
  • the cradle of the shuttles moves away from the knotting area by moving in the direction of evacuation of the net, and approaches it by moving in the opposite direction. This normally corresponds
  • the shuttles moving away then approaching the knotting area, deliver a certain length of thread under zero tension, therefore always the same regardless of the filling of the shells, while the net during this phase is kept pinched between the anterior and posterior bars, thus being prevented from falling under its own weight while it is no longer supported by the shuttle wires,
  • Figure 1 shows schematically, in side elevation with partial section, a part of a thread weaving machine incorporating the invention.
  • Figures 2 and 3 illustrate two successive phases of the making of a knot.
  • FIG. 1 the knotting area 5 of a net weaving machine, where, for each row of net stitches to be made, a beam yarn (not shown) descending vertically is knotted by means of various needles (not shown) with a thread 6 from a shuttle 7.
  • the thread 8 produced descends step by step, after each operation of making a row of knots in the zone 5, along a fixed plate 9, passing between a rear flat bar 10, integral with the plate. 9 , and a front flat bar 11.
  • the bars 10 and 11 extend horizontally over the entire width of the machine, as well as the rows of needles.
  • the shuttles 7, juxtaposed in a horizontal row, are carried by a common cradle 12 animated by a vertical back-and-forth movement thanks to a mechanism not shown.
  • the front bar 11 is carried by substantially vertical rods 18, which pivot about a horizontal axis 13 fixed under the action of cranks 14 - driven by an oscillating movement synchronized with the movement of the rows of needles and of the other members mobile of the machine - by means of connecting rods 15 articulated to the cranks 14 and connected by flexible seals 16 to the rods 18.
  • the front bar 11 is applied, by pivoting about the axis 13, against the front plate 10, so as to pinch the net 8 and immobilize it.
  • the cradle 12 then lowers the shuttles 7, each then delivering a certain length of wire 6 by unwinding of the shell, then makes them rise, which gives slack to the strands of son 6 delivered.
  • Each hook needle 19 passes the corresponding beam wire 20 around the associated shuttle 7, so that the wire 20 comes around the relaxed strand of wire 6 and drives it effortlessly when tightening the node. All the nodes of the row being now made and tightened, the jaws formed by the bars 10 and 11 open by spacing the anterior bar 11 - and the net 8 freely executes a step of evacuation downwards. Then the net 8 is again pinched - - - - for the following knotting operation, and so on.
  • the arrangement according to the invention has the advantage of ensuring the delivery of shuttle wires under constant tension, namely zero, therefore independent of the state of filling of the shells that they contain and of their faculty of rotation. It also has other advantages, illustrated by FIGS. 2 and 3.
  • FIG. 2 shows the initial phase of knotting where the eyelet needle 21 lowers the warp thread 20 to make it form a loop 20 ′ (cf. FIG. 3) around the first needle 22 and the second needle 23.
  • the front bar remains in a fixed position lla spaced from the rear bar 10, and the thread 20 takes the configuration 20a where it passes over the needle 23 in a region close to the end of the latter, so that it risks escaping there
  • the front bar is then in the pinching position llb and the wire 20, guided by the upper edge of said bar, follows a path 20b more distant from the end of the switch 2j, so that it cannot escape from it.
  • Figure 3 shows the knotting stage where the yarn 2 0, passing through the loop 20 'that form around the needles 22 and 23, is pulled by the needle hook 19 to pass around the shuttle 7
  • This traction exerted by the needle 19 tends to cause said loop to escape from the needles 22, 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Soil Working Implements (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Knitting Of Fabric (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Paper (AREA)
EP80400002A 1979-02-13 1980-01-02 Verbesserte Netzknotmaschine Expired EP0014601B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400002T ATE1510T1 (de) 1979-02-13 1980-01-02 Verbesserte netzknotmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7903621A FR2450303A1 (fr) 1979-02-13 1979-02-13 Machine a tisser les filets perfectionnee
FR7903621 1979-02-13

Publications (2)

Publication Number Publication Date
EP0014601A1 true EP0014601A1 (de) 1980-08-20
EP0014601B1 EP0014601B1 (de) 1982-09-01

Family

ID=9221908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400002A Expired EP0014601B1 (de) 1979-02-13 1980-01-02 Verbesserte Netzknotmaschine

Country Status (9)

Country Link
EP (1) EP0014601B1 (de)
JP (1) JPS55107563A (de)
AT (1) ATE1510T1 (de)
DE (1) DE3060781D1 (de)
ES (1) ES487734A1 (de)
FI (1) FI794067A7 (de)
FR (1) FR2450303A1 (de)
NO (1) NO147842C (de)
PT (1) PT70685A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755116A1 (fr) * 1996-10-31 1998-04-30 Lelong Bonnaric Jean Claude Procede de ligature par entrelacement autoserre et attache de suspension a l'unite ou en duo

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE390179C (de) * 1918-02-23 1924-02-14 Walter C Broecker Netzknuepfmaschine
DE453177C (de) * 1926-11-03 1927-11-30 Peter Kordt Netzknuepfmaschine
GB660370A (en) * 1948-08-27 1951-11-07 Kristiansands Fiskegarnsfabrik Improvements in machines for manufacturing fish nets and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE390179C (de) * 1918-02-23 1924-02-14 Walter C Broecker Netzknuepfmaschine
DE453177C (de) * 1926-11-03 1927-11-30 Peter Kordt Netzknuepfmaschine
GB660370A (en) * 1948-08-27 1951-11-07 Kristiansands Fiskegarnsfabrik Improvements in machines for manufacturing fish nets and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755116A1 (fr) * 1996-10-31 1998-04-30 Lelong Bonnaric Jean Claude Procede de ligature par entrelacement autoserre et attache de suspension a l'unite ou en duo

Also Published As

Publication number Publication date
JPS6311465B2 (de) 1988-03-14
EP0014601B1 (de) 1982-09-01
FR2450303A1 (fr) 1980-09-26
ATE1510T1 (de) 1982-09-15
DE3060781D1 (en) 1982-10-28
NO147842C (no) 1983-06-29
NO794334L (no) 1980-08-14
JPS55107563A (en) 1980-08-18
PT70685A (fr) 1980-02-01
ES487734A1 (es) 1980-06-16
FI794067A7 (fi) 1981-01-01
FR2450303B1 (de) 1981-06-26
NO147842B (no) 1983-03-14

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