EP0014601B1 - Machine à tisser les filets perfectionnée - Google Patents

Machine à tisser les filets perfectionnée Download PDF

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Publication number
EP0014601B1
EP0014601B1 EP80400002A EP80400002A EP0014601B1 EP 0014601 B1 EP0014601 B1 EP 0014601B1 EP 80400002 A EP80400002 A EP 80400002A EP 80400002 A EP80400002 A EP 80400002A EP 0014601 B1 EP0014601 B1 EP 0014601B1
Authority
EP
European Patent Office
Prior art keywords
shuttles
cradle
net
knotting
needles
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
Application number
EP80400002A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0014601A1 (fr
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/fr
Application granted granted Critical
Publication of EP0014601B1 publication Critical patent/EP0014601B1/fr
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 thread 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 which 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 aforementioned back-and-forth movement of the cradle of the shuttles is controlled before passage of the beam wires around the shuttles, and the front flat bar is movable and is controlled mechanically, in a clocked manner, for apply against the rear bar before the start of said back-and-forth movement of the shuttles and pinch the net in order to immobilize it during the operation of making a row of knots, then to move away from the bar posterior to allow 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 to a vertical back and forth movement.
  • 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 column of stitches of the net 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 downward evacuation step. Then the net 8 is again pinched for the next 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.
  • Figure 2 shows the initial phase of knotting where the eyelet needle 21 lowers the beam yarn 20 to make it form a loop 20 '(see Figure 3) around' the first needle 22 and the needle second 23.
  • the anterior bar remains in a fixed position 11 a apart from the posterior 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 it, so it may escape.
  • the front bar is then in the pinching position 11b and the wire 20, guided by the upper edge of said bar, follows a path 20b more distant from the end of the needle 23, so that he cannot escape it.
  • FIG. 3 shows the knotting phase where the thread 20, passing through the loop 20 'which it forms around the needles 22 and 23, is pulled by the hook needle 19 in order 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. This can easily occur when the front bar is in the fixed position 11a. But when this bar is in position 11b, the loop is perfectly maintained by the wire 20b which emerges therefrom and which is pinched between the bars 10, 11b.

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)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Paper (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Knitting Of Fabric (AREA)
EP80400002A 1979-02-13 1980-01-02 Machine à tisser les filets perfectionnée Expired EP0014601B1 (fr)

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
FR7903621 1979-02-13
FR7903621A FR2450303A1 (fr) 1979-02-13 1979-02-13 Machine a tisser les filets perfectionnee

Publications (2)

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

Family

ID=9221908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400002A Expired EP0014601B1 (fr) 1979-02-13 1980-01-02 Machine à tisser les filets perfectionnée

Country Status (9)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755116B1 (fr) * 1996-10-31 1999-04-02 Lelong Bonnaric Jean Claude Procede de ligature par entrelacement autoserre et attache de suspension a l'unite ou en duo

Family Cites Families (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

Also Published As

Publication number Publication date
NO794334L (no) 1980-08-14
FI794067A7 (fi) 1981-01-01
PT70685A (fr) 1980-02-01
ES487734A1 (es) 1980-06-16
FR2450303B1 (enrdf_load_stackoverflow) 1981-06-26
NO147842C (no) 1983-06-29
JPS55107563A (en) 1980-08-18
DE3060781D1 (en) 1982-10-28
JPS6311465B2 (enrdf_load_stackoverflow) 1988-03-14
NO147842B (no) 1983-03-14
ATE1510T1 (de) 1982-09-15
FR2450303A1 (fr) 1980-09-26
EP0014601A1 (fr) 1980-08-20

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