EP0301111A1 - Maschine zum Herstellen eines aus Litzen geklöppelten Seils - Google Patents

Maschine zum Herstellen eines aus Litzen geklöppelten Seils Download PDF

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Publication number
EP0301111A1
EP0301111A1 EP87110855A EP87110855A EP0301111A1 EP 0301111 A1 EP0301111 A1 EP 0301111A1 EP 87110855 A EP87110855 A EP 87110855A EP 87110855 A EP87110855 A EP 87110855A EP 0301111 A1 EP0301111 A1 EP 0301111A1
Authority
EP
European Patent Office
Prior art keywords
spools
strands
machine
filaments
rope
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.)
Ceased
Application number
EP87110855A
Other languages
English (en)
French (fr)
Inventor
Walter Betta
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.)
REDAELLI TECNA SpA
Original Assignee
REDAELLI TECNA SpA
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 REDAELLI TECNA SpA filed Critical REDAELLI TECNA SpA
Priority to EP87110855A priority Critical patent/EP0301111A1/de
Publication of EP0301111A1 publication Critical patent/EP0301111A1/de
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00—Braiding or lacing machines
    • D04C3/40—Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances
    • D04C3/42—Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances with means for forming sheds by controlling guides for individual threads

Definitions

  • This invention relates to a machine for forming ropes in the form of braided filaments or strands.
  • Machines for forming braided stranded ropes having the characteristic of not undergoing torsion when subjected to tension are already known. Such a machine is that described in Italian patent application No. 2934A/79 in the name of WABING S.p.A., to which reference should be made for completion of documentation.
  • An object of the present invention is to provide a machine for forming ropes in the form of braided strands or wires which is able to obviate the aforesaid drawbacks, while maintaining the operating speed of the original machine unaltered.
  • This machine for forming ropes in the form of braided strands or filaments is characterised by comprising at least one lower (9) and one upper (34) spool assembly, the assemblies undergoing mutually opposing revolution about a vertical axis (36) contai­ning the point (35) of formation of the rope (42) generated by filaments or strands (24, 34T) originating from said spools, the spools of the lower assembly (9) and those of the upper assembly (34) being driven with rotary motion about the torsion axis (D ⁇ , 35) of the respective filaments or strands (24, 34T) in opposite directions (D, Y), each filament or strand being presented to the point (25) of formation of the rope (42) alternatively on opposite sides with respect to the other.
  • Figure 1 is a diagrammatic section through part of the machine according to the invention
  • Figure 1A is a perspective detailed view of some elements of the upper part of the machine, showing the means for allowing movement of the strands of lower origin
  • Figure 2 is an overall side view of the machine, with some parts omitted for representational clarity
  • Figure 3 is a side view of one type of rope produced by the machine
  • Figure 4 is a cross-section through another type of rope produced by the machine.
  • the braider according to the invention consists of a base 2 into which there extends a drive shaft 3 terminating in a bevel gear pair 4.
  • This bevel gear pair drives a first shaft 5 and a second shaft 6 which rotate in the same direction and both having their axis coinciding with the machine vertical axis 36.
  • the first shaft 5 rotates (in a direction which for clarity is referred to hereinafter as clockwise) an upper machine structure or carousel 7 which rests on the base 2, in correspondence with a thrust bearing Z disposed at the top thereof.
  • Six lower equidistant spools 9 are directly rigid with the rotatable structure 7. They are linked to a fixed ring gear 8 of the machine by means of a bevel gear 10, a reduction gear 11, a shaft 12 deriving from the reduction gear 11, and a bevel gear pair 13. Said spools 9 of said assembly therefore rotate about said vertical axis 36, about an unwinding axis 37, and about the axis of torsion D ⁇ of the strand 24 unwinding from the spool 9.
  • the strand path is indicated by a series of dots. The larger dots (24) indicate the strands originating from the lower spools 9 and the smaller dots (34T) indicate the strands originating from the upper spools 34 (and which will be described hereinafter).
  • the shaft 6 is connected to a gear 14 which transmits movement to a gear wheel 15 ⁇ , which operates a further gear 16 by way of a gear wheel 15 ⁇ .
  • a conventional intermediate gear unit can be disposed between the gear wheels 15 ⁇ and 15 ⁇ to increase the radial acceleration required for rope braiding, as described hereinafter.
  • the gear 16 is rigid with a bevel ring gear 17, which transmits motion to a series of radial shafts 18 by means of bevel gears 19 keyed onto one end of them.
  • the radial shafts 18 carry at their other end further bevel gears 19 ⁇ for driving six thread guide devices, indicated overall by 20. For simplicity of illustration, only two diametrically opposite devices 20 are shown in the figures.
  • Each thread guide 20 consists of a first base bevel gear 21 of axis 21A, which causes a second gear 22 to revolve about said axis 21A so that it derives its own rotation about its axis 22A by virtue of its engagement with a fixed internally toothed ring gear 23, the axis of which coincides with said axis 21A.
  • Said fixed ring gear 23 comprises a number of teeth which is twice that of its orbiting gear wheel 22, with the result that a deviation pulley 22R fixed eccentrically on this latter for the purpose of guiding the strand 24 of its particular spool 9, is subjected to essentially radial rectilinear movement.
  • the pin 27A of the gear wheel 27 is fixed eccentrically, in the manner of a crankpin, on a gear wheel 28 rigid with the carousel 7 and thus rotates with it.
  • the pin 27A is moved in orbital motion about the main central vertical axis 36 of the machine, while at the same time causing its gear wheel 27 to engage and rotate on the drive gear wheel 26 at a speed determined by the engagement ratios used "upstream" at 4.
  • the pin 27A carries a gear wheel 31 which engages the inner toothing of six spaced-apart coplanar annular segments 32 mounted rotatable in an annular guide 60 which is also formed from spaced-apart annular segments, and is fixed to the carousel 7.
  • a series of gear wheels 31A which are coplanar with each other and with the gear wheel 31 also engage said annular toothed segments 32, and are idly supported on the upper end of pins 61 rigid with the gear wheel 28.
  • the assembly formed by the gear wheel 31 and 31A is therefore distributed along a circle, and the annular segments define a ring 36 which is discontinuous by virtue of the presence of the spaces 32S between the segments (see Figure 1A).
  • the discontinuous ring 30 formed from the segments 32 rotates in a direction P opposite to the direction F of the gear wheel 28 (ie of the carousel 7), and its axis coincides with the axis 36.
  • the gear wheel 31 therefore behaves as a motion-inverting idle gear wheel.
  • the arrow L does not pertain to the ring 30, but to an externally toothed gear wheel 43 which links together the motion of the numerous pinions 31A disposed circumferentially on the gear wheel 28 in such a number that at least one is always engaged with the segments 32 of the ring 30, independently of the gaps 32S present therein.
  • the ring 30 therefore moves in a direction P the reverse of the direction L indicated in Figure 1, by virtue of its internal toothing, whereas the gear wheel 43 comprises external toothing.
  • Each annular segment 32 of the ring 30 carries a support structure 33. Internal to this support structure there cooperates a shaft 70 which, below the relative segment 32, comprises a gear wheel 29 engaged with the gear wheel 28. Above the segment, the shaft 70 comprises an internally toothed bevel gear 18 engaging with a bevel gear 81 keyed on a shaft 82 inclined to the shaft 70. The shaft 82 is also supported by the annular segment 32 by way of the structure 33, and carries the upper spool 34. The strand 34T unwinds from the spool 34 and passes through the guide 36 associated with the spool, which rotates about its axis 38 and about the geometrical axis 35 of the shaft 82. By virtue of the described arrangement, the upper spools 34 are compelled to remain at a constant distance apart, as if they were joined together, or as if the ring 30 were formed in a single piece (instead of six segments 32).
  • the need for the gap 32S between the toothed segments 32 derives from the radial movement to which the strands 24 (originating from the spools 9) are subjected by the effect of the orbiting of their deviation pulley 22R ( Figure 1).
  • the strands 24 must wind about a pair of successive strands 34T originating from the group of six upper spools 34, so that during the complex rotation of the machine parts, the strands 24 must lie alternatively in an inner and then an outer position with respect to the upper spool 34, ie with respect to the axis of rotation 35 of this latter.
  • the amplitude of this travel of the strands 24 from the spools 9 in order to wind about a pair of strands 34T originating from two consecutive upper spools 34 is such as to "cut" at 32S the ring gear 30 and the relative guide 60, which are therefore formed from various segments. These segments are shown as six in number, on the assumption that the machine 1 is provided for forming ropes comprising twelve strands, namely six strands 34T and six strands 24.
  • the spools 9 and 34 rotate not only about their respective unwinding axes 37 and 38 but also about the torsion axes orthogonal to these, the spool 9 rotating about itself on the torsion axis D ⁇ , and the spool 34 rotating about itself by orbiting torsionally in the direction Y about the axis 35, to cooperate with the other braiding movements.
  • the power from the shaft 3 is divided between the shafts 5 and 6, which rotate in the same direction shown by the arrows A and B.
  • the base 2 and relative gear wheel 8 remain rigid with the ground W, while the upper structure or carousel 7 rotates clockwise, resting on the thrust bearing Z, to thus impress on the lower spools 9 a revolving movement about the vertical machine axis 36 in the same direction A.
  • the bevel gear 10 is driven in the direction indicated by the arrow C, and motion is transmitted by the elements 11, 12, 13 to the spools 9 to cause them to rotate in an anticlockwise direction in accordance with the arrow D.
  • a drawing unit 40 pulls all the strands 34T and 24 (six plus six) towards itself, to cause them to group together within a guide bore or point 25.
  • the bore 25 feeds the product to the race of a pulley 41 while the specific strands 24, 34T unwind from the respective spools 9 and 34.
  • the rotation of these spools about their unwinding axes 37, 38 is resisted by the usual brakes, provided to keep the various strands taut.
  • the base 2 is rigid with the ground W, whereas the upper structure 7 rotates (in a clockwise direction) in the manner of a carousel, so that its spools 9 revolve about the machine axis 36.
  • the spools 9 rotate about themselves on the axis D ⁇ (equivalent to that of the strand 24), and about the unwinding axis 37.
  • the upper spools 34 revolve about the machine axis 36 in an anticlockwise direction (when observing the machine from above), and rotate clockwise about the axes 35 (identical with the axes of the strands 34T) so that for each revolution they also undergo approximately one rotation, in addition to their unwinding motion about the axis 38.
  • the final product is the rope 42, which comprises an extremely uniform braiding of the strands 34T and 24, as shown in Figures 3 and 4, and such as to allow correct distribution of the tensile loads between the two types of strands originating from the lower spools 9 and upper spools 34 respectively, to thus attain the said objects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
EP87110855A 1987-07-27 1987-07-27 Maschine zum Herstellen eines aus Litzen geklöppelten Seils Ceased EP0301111A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP87110855A EP0301111A1 (de) 1987-07-27 1987-07-27 Maschine zum Herstellen eines aus Litzen geklöppelten Seils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87110855A EP0301111A1 (de) 1987-07-27 1987-07-27 Maschine zum Herstellen eines aus Litzen geklöppelten Seils

Publications (1)

Publication Number Publication Date
EP0301111A1 true EP0301111A1 (de) 1989-02-01

Family

ID=8197156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87110855A Ceased EP0301111A1 (de) 1987-07-27 1987-07-27 Maschine zum Herstellen eines aus Litzen geklöppelten Seils

Country Status (1)

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EP (1) EP0301111A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226575A (en) * 1988-12-30 1990-07-04 Oberspree Kabelwerke Veb K Braiding machine
WO2014101982A1 (de) * 2012-12-28 2014-07-03 Maschinenfabrik Niehoff Gmbh & Co. Kg Rotationsflechtmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1034991A (en) * 1964-08-03 1966-07-06 C R F Ohg Di Prec E S P A Improvements in rope spinning machines
GB1075038A (en) * 1965-05-27 1967-07-12 Ts P Kb Kabelnogo Oboru Improvements in or relating to braiding machines
US3892161A (en) * 1974-06-06 1975-07-01 Vincent Sokol Braiding machine wire control
GB2062022A (en) * 1979-10-26 1981-05-20 Wabing Srl Braided stranded rope forming machine
GB2076435A (en) * 1980-05-23 1981-12-02 Bicc Ltd Improved braiding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1034991A (en) * 1964-08-03 1966-07-06 C R F Ohg Di Prec E S P A Improvements in rope spinning machines
GB1075038A (en) * 1965-05-27 1967-07-12 Ts P Kb Kabelnogo Oboru Improvements in or relating to braiding machines
US3892161A (en) * 1974-06-06 1975-07-01 Vincent Sokol Braiding machine wire control
GB2062022A (en) * 1979-10-26 1981-05-20 Wabing Srl Braided stranded rope forming machine
GB2076435A (en) * 1980-05-23 1981-12-02 Bicc Ltd Improved braiding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226575A (en) * 1988-12-30 1990-07-04 Oberspree Kabelwerke Veb K Braiding machine
GB2226575B (en) * 1988-12-30 1992-10-14 Oberspree Kabelwerke Veb K Braiding machine
WO2014101982A1 (de) * 2012-12-28 2014-07-03 Maschinenfabrik Niehoff Gmbh & Co. Kg Rotationsflechtmaschine
CN104903504A (zh) * 2012-12-28 2015-09-09 尼霍夫机器制造公司 旋转编织机

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