EP0302286B1 - Rundstrickmaschine mit Schiebernadeln - Google Patents

Rundstrickmaschine mit Schiebernadeln Download PDF

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Publication number
EP0302286B1
EP0302286B1 EP88111469A EP88111469A EP0302286B1 EP 0302286 B1 EP0302286 B1 EP 0302286B1 EP 88111469 A EP88111469 A EP 88111469A EP 88111469 A EP88111469 A EP 88111469A EP 0302286 B1 EP0302286 B1 EP 0302286B1
Authority
EP
European Patent Office
Prior art keywords
needle
slide
cam
needles
knitting machine
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 - Lifetime
Application number
EP88111469A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0302286A3 (de
EP0302286A2 (de
Inventor
Ernst-Dieter Plath
Kurt Jünthner
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.)
Sipra Patententwicklungs und Beteiligungs GmbH
Original Assignee
Sipra Patententwicklungs und Beteiligungs GmbH
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 Sipra Patententwicklungs und Beteiligungs GmbH filed Critical Sipra Patententwicklungs und Beteiligungs GmbH
Publication of EP0302286A2 publication Critical patent/EP0302286A2/de
Publication of EP0302286A3 publication Critical patent/EP0302286A3/de
Application granted granted Critical
Publication of EP0302286B1 publication Critical patent/EP0302286B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/06—Sinkers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
    • D04B35/06—Sliding-tongue needles

Definitions

  • the invention relates to a circular knitting machine with at least one needle carrier with slider needles, the head and slider of which are separately controlled and designed so that the tip of the slider can pass through the needle head, with lock curves for controlling the needles for knitting, catching or true running and with a sinker lock curve controlled boards interacting with the pusher needles.
  • Circular knitting machines with slide needles have already been known or proposed because higher needle adjustment speeds can be achieved by replacing a needle tongue with a controlled needle slide.
  • a knitting machine has already been proposed (DE-C1-35 40 685), in which the slide of the slide needles, which interact with sinkers, is held immovably at a constant height.
  • Needle pusher certain restrictions in the adjustment width of lock parts have to be accepted if a high level of operational safety is to be guaranteed in every control position of the knitting tools.
  • the aim is to use pusher needles in a circular knitting machine with a needle selection device, which permits needle adjustment for knitting, catching or concentricity.
  • a needle selection device should also have the lock track for the needle slide changing device parts what for a needle selection device for a 3-way technique would mean a considerable effort.
  • the need for control needles for each of the three would also have to be according to the previous control technology
  • Needle lock tracks a slide lock curve adapted to it can be provided. This would result in large lock heights and correspondingly large needle lengths and also needle slide lengths, and even larger needle masses would have to be moved than before.
  • the invention is therefore based on the object of designing a circular knitting machine with controllable slide needles in such a way that an increase in the mass of known slide needles and the expenditure on control devices of a needle selection device and the expenditure on lock parts Compared to previously known and comparable circular knitting machines is not required, however, no restriction of the range of variation of previously known comparable machines has to be accepted.
  • the object is achieved according to the invention in a circular knitting machine of the type mentioned in the introduction in that only a single lock curve causing longitudinal movements of the slide is formed for the slide needles of the slide needles for all needle lock curves.
  • a circular knitting machine designed according to the invention there is therefore no need to provide selection devices or adjusting devices for the needle slides, regardless of whether a 3-way technique is used for selecting a jacquard needle or for locks with one or more lock tracks.
  • the needles can be controlled in a pattern according to the pattern knitting, catching or non-knitting within a row of stitches.
  • the slide lock curve can be given a shape to which all possible needle lock curves, i.e. the lock curves for knitting, catching and concentric running, can be adapted in such a way that the respective needle function is easily fulfilled at high machine speed.
  • the needle slide curve is designed in such a way that it rises later than the needle curve for knitting and rises at the same time or offset compared to the needle curve for catching.
  • the object is completely achieved with a circular knitting machine designed according to the invention.
  • the castle structure does not get more complicated.
  • the dimensions of the systems, the slide needles and the needle carrier do not have to be enlarged compared to previously known and comparable constructions. All needle positions can be reached without restrictions for extensive pattern options.
  • the circular knitting machine shown in FIG. 1 has a circumferential cylindrical knitting tool carrier 10/14 which is divided into a needle cylinder part 10 and a sinker cylinder part 14, both of which are firmly connected to one another by means of screws 15.
  • the outer jacket of the needle cylinder part 10 is occupied in a known manner with axially parallel guide webs 11 for shafts 12.1 inserted between them by slide needles 12.
  • the guide webs 16 for the sinkers 17 are inserted in the sinker cylinder part 14 with the same pitch as the guide ribs 11 of the needle cylinder part 10, but are facing the guide ribs 11 of the Needle cylinder part 10 on gap.
  • the needle shafts 12.1 slide with the needle back on the end face of the board guide webs 16.
  • the needle cylinder part 10 and the coaxial sinker cylinder part 14 are surrounded by a common lock jacket 18, which in a known manner has lock parts for controlling the slide needles 12, the needle slide 13 and the sinkers 17.
  • a hold-down device 57 acts on the needle shafts 12.1 below the head 12.2 of the pusher needles 12.
  • the needle slides 13 used to close the needle head 12.2 are designed such that their tip 13.1 can pass through the needle head 12.2. They protrude with a foot 13.2 into a slide lock track 41 of the lock casing 18.
  • the individual structure of the slide needle 12 and the mounting of the slide 13 in the needle shaft 12.1 is not essential to the invention and is therefore not shown in detail.
  • the slide needles 12 are provided with a control foot 21, which can be located at one of four possible locations, which have a different distance from the needle head 12.2 and each in one of several, Needle lock tracks 20.1-20.4 formed in the lock jacket 18 protrude, as can best be seen from FIG. 2.
  • the blanks 17 shown in FIG. 1 are designed as containment / knock-off blanks with the head part which is characteristic of this type of blanks and which has a knock-over edge 23 which opens at one end into an inclusion groove 25 for enclosing the stitches.
  • the Longitudinal displacement of the circuit board 17 is effected on a central control foot 26, at the height of which the circuit board is supported on the circuit board cylinder part 14 with a rounded projection 27.
  • the pivoting movement of the boards 17 around the projection 27 is controlled by pressure feet 29 and 30, which are located on opposite sides of the control foot 26 on the relatively short board shaft.
  • a change in stitch length is effected solely by adjusting the stroke of the enclosing / knock-off sinkers 17.
  • the lock parts 48, 49 acting on the control foot 26 of the boards 17 are fastened on an adjustable lock plate 42.
  • This lock plate 42 is coupled via an eccentric pin 53 to an actuating shaft 54 which leads to the outside and ends in an outer adjusting disc 55.
  • the Kulierweg the boards 17 can be set on the adjusting disc 55.
  • Fig. 2 shows in the left part four slide needles 12, which are intended for cooperation with known, horizontally mounted inclusion boards and thus have slightly different dimensions than the slide needle 12 shown in Fig. 1.
  • the four slide needles 12 shown in FIG. 2 differ only in a different arrangement of their control foot 21.
  • the control feet 21 are aligned with four needle lock tracks 20.1, 20.2, 20.3 or 20.4 shown in the right part of FIG. 2, each of which has four systems I - IV of the circular knitting machine are shown.
  • the four needle lock tracks 20.1 - 20.4 have, in accordance with the 3-way technique for needle control that can be achieved with them, the successive ones Systems a different course.
  • the upper slide lock curve 41 for the control foot 13.2 of the needle slide 13 has exactly the same course in each system.
  • the pushing needles 12 projecting into the uppermost needle lock track 20.1 with their control foot 21 are driven out into the knitting position in system I, in the following system II only up to the catching position, remain in the concentric position in system III and are again in the knitting position in system IV expelled.
  • the slide needles 12 protruding into the needle lock track 20.2 with their control foot 21 are driven out in the system I to the catch position, remain in the system II in the concentric position and are driven out into the knitting position in the following systems III and IV.
  • weave patterns can be produced, the pattern width of which is four stitches. The height of the pattern depends on the number of systems in the circular knitting machine.
  • the slide lock track 41 can always maintain the same course for each type of needle lock track, i.e. its course for knitting, catching or running, the lock tracks must have a coordinated course that is not from the overview in FIG. 2, but from the following 3 to 14 can be seen in more detail.
  • jacquard patterns with individual needle selection by known mechanical or electronic pattern devices or selection devices are also possible.
  • FIGS. 3, 5 and 7 show in a circular knitting machine which is equipped with slide needles and with boards which can be adjusted horizontally perpendicular to the longitudinal direction of the needle, the movement curve for the needle slide tip, the movement curves of the needle head for the possible needle positions knitting, tucking and concentricity and, in addition, the here less interesting curve of the board movement.
  • FIGS. 4, 6 and 8 show the relative position of the needle shaft and needle slide at eight points 1-8 designated in FIGS. 3, 5 and 7.
  • FIG. 3 shows curve 32, which the needle slide tip 13.1 follows, and curve 33, which the needle head 12.2 follows in the knitting needle position.
  • the curve 37 is drawn in which the throat 25 of the board 17 'follows.
  • the curve 32 shows that when running through a system, the slide tip 13.1 is first raised to a height before position 1, which corresponds to the concentric height of the needle head 12.2 and the height of the tapping edge 23 of the board 17 '. The slider tip 13.1 remains at this height up to point 3.
  • the needle slide tip 13.1 is driven out to approximately the level of the thread feed point 28, from point 5, and thus before it is reached the thread feed point 28, but again lowered to below the thread feed height and then held up to point 7 at a height which is above the stitch drop height.
  • the needle slide tip 13.1 is then pulled down to the thread knock-off height designated 38 at position 8 in FIG. 3, namely congruently with the curve 33 for the needle head 12.2.
  • the curve 33 for the knitting position shows that the needle head 12.2 is driven out from position 1 and thus much earlier than the needle slide 13 until it reaches the knitting position between positions 3 and 4.
  • Fig. 7 shows the conditions for the needle position concentricity.
  • 7 shows a curve 35 for the curve 32 for the needle slide tip 13.1, which the needle head 12.2 follows.
  • the curve 35 essentially follows the curve 32 such that the needle head 12.2 is practically always closed by the needle slide 13, as shown in FIG. 8.
  • the slider tip 13.1 also extends beyond the needle head 12.2 between positions 4 to 7.
  • the needle head 12.2 is through the slide tip 13.1 half released again.
  • the lowering movement of curve 35 relative to curve 32 for the needle slide between positions 6 and 7 has the effect that the needle head does not hinder the insertion of the thread into a preceding needle.
  • the curve 32 for the slide tip 13.1 is, however, not lowered very far, so that it is ensured that in the needle position knitting the old stitch 40 (see FIG. 4) between the positions 6 and 7 on the slide 13 does not reenter the needle head 12.2 can fall behind.
  • FIGS. 9 to 14 show the shape and the relative course of the curves in the case of sliding needles which, according to the exemplary embodiment shown in FIG. 1, cooperate with sinkers 17 which, in accordance with a curve 36 shown in FIGS. 9, 11 and 13, also in the longitudinal direction of FIG Slider needles are adjustable.
  • the curve 32 'shown in FIGS. 9, 11 and 13' for the needle slide tip 13.1 is again the same for all needle positions knitting, catching and concentricity, but has a different course than the curve 32 shown in FIGS. 3, 5 and 7
  • the slide tip 13.1 initially remains in its lowest trigger position, which corresponds to the drawn-in height 38, over at least one third of the system length, here up to point 4.
  • the pusher tip 13.1 is driven out to a height below the thread feed height, at which it remains held over the thread insertion point 5 and only after the thread feed point 28 further and according to curve 32 'together with the inclusion / knock-off plate 17 to to the positions 6 and 7 in FIGS. 10, 12 and 14 apparent height is expelled. Finally, the needle tip 13.1 is withdrawn congruently with the curving sections of the curves for the needle head 12.2 down to the lowest trigger position 38.
  • Fig. 9 shows the curve 32 'for the needle slide tip 13.1 together with the curve 33', which the needle head 12.2 follows in the knitting position.
  • the result of the course of the curves 32 ', 33' and the curves 36 and 37 'for the sinkers 17 relative position of slide needle 12, needle slide 13 with needle slide tip 13.1 and enclosing / knock-off boards 17 at positions 1 to 8 is shown in Fig 10 can be seen and requires no further explanation.
  • FIG. 11 shows the curve 32 'for the needle slide tip 13.1 together with the curve 34', which follows the needle head 12.2 in the catch needle position.
  • a comparison of FIGS. 9 and 11 shows that the needle ejection for the catch position takes place later than for the knitting position, and that, according to FIG. 12, it is ensured for the catch position that the slide tip 13.1 never opens the needle head fully, but always protrudes from the needle shaft, as has already been explained in connection with FIGS. 5 and 6.
  • FIG. 12 again shows the relative position of the individual moving parts at points 1 to 8 of the system.
  • FIG. 13 and 14 show the conditions for the needle position concentricity.
  • Fig. 13 shows next to the curve 32 'a curve 35', which follows the needle head 12.2.
  • the needle head 12.2 is opposite Needle pusher tip 13.1 driven out so far that the needle head 12.2 is not completely closed.
  • FIG. 14 shows, however, that at the other points 3 to 8 the needle head is always closed by the needle slide tip 13.1, which again moves beyond the needle head.
  • the invention is not limited to the circuit board guide and circuit board mounting shown in FIG. 1 and described here.
  • the invention can also relate to machines with boards mounted horizontally in a separate board ring.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP88111469A 1987-07-25 1988-07-16 Rundstrickmaschine mit Schiebernadeln Expired - Lifetime EP0302286B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3724732 1987-07-25
DE3724732 1987-07-25
DE3821213 1988-06-23
DE3821213A DE3821213A1 (de) 1987-07-25 1988-06-23 Rundstrickmaschine mit schiebernadeln

Publications (3)

Publication Number Publication Date
EP0302286A2 EP0302286A2 (de) 1989-02-08
EP0302286A3 EP0302286A3 (de) 1991-11-21
EP0302286B1 true EP0302286B1 (de) 1994-10-19

Family

ID=25857967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111469A Expired - Lifetime EP0302286B1 (de) 1987-07-25 1988-07-16 Rundstrickmaschine mit Schiebernadeln

Country Status (5)

Country Link
US (1) US4920767A (enrdf_load_stackoverflow)
EP (1) EP0302286B1 (enrdf_load_stackoverflow)
JP (1) JP2556356B2 (enrdf_load_stackoverflow)
DE (1) DE3821213A1 (enrdf_load_stackoverflow)
ES (1) ES2064331T3 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433675A (zh) * 2011-11-02 2012-05-02 泉州佰源机械有限公司 一种用于三角、滑块和鞍座的定位结构
US11684910B2 (en) 2018-07-16 2023-06-27 Battelle Energy Ailiance, LLC Composite media for non-oxidative ethane dehydrogenation, and related ethane activation systems and method of processing an ethane-containing stream

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2208660B (en) * 1987-08-15 1992-04-08 Sipra Patent Beteiligung Circular weft knitting machine
US4971841A (en) * 1989-06-08 1990-11-20 Basf Corporation Reflective automotive coating compositions
US5193655A (en) * 1989-09-20 1993-03-16 Atsugia Unisia Corp. Variable damping force shock absorber with feature of linear and wide range damping force variation depending upon piston stroke speed
DE4115198C2 (de) * 1991-05-11 2002-11-21 Sipra Patent Beteiligung Einrichtung an mit Schiebernadeln ausgerüsteten Rundstrickmaschinen und Schiebernadel für Rundstrickmaschinen
US5390707A (en) * 1991-10-03 1995-02-21 Societe Nationale Industrielle Et Aerospatiale Method and a machine for making hollow reinforcing members
DE4240037C2 (de) * 1992-11-28 2001-02-08 Sipra Patent Beteiligung Schloßanordnung für eine Strickmaschine
US6519978B2 (en) 2001-04-23 2003-02-18 Monarch Knitting Machinery Corp. Apparatus and method for knitting a fabric with a lay-in yarn on a circular knitting machine
DE10316702A1 (de) * 2003-04-08 2004-10-28 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Verfahren und Strickmaschine zur Herstellung von Strickwaren, insbesondere aus hartem, unelastischem Fadenmaterial
DE10320533A1 (de) * 2003-05-02 2004-11-18 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine, insbesondere zur Herstellung von Abstandsgestricken
KR100593253B1 (ko) * 2004-10-30 2006-06-26 이희성 카트리지형 작동캠을 구비하는 직물 편성용 환편기
US7607322B1 (en) * 2008-12-17 2009-10-27 Monarch Knitting Machinery Corp. Circular knitting machine with sinker cams facilitating high-speed operation
CN103147219A (zh) * 2013-03-12 2013-06-12 绍兴恒舜数控精密机械科技有限公司 针织小圆机下三角调节机构
US8938995B2 (en) 2013-03-15 2015-01-27 Monarch Knitting Machinery Corporation Circular knitting machine with mounting arrangement for sinker cams
DE102017108676A1 (de) * 2017-04-24 2018-10-25 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Platinenschloss für Rundstrickmaschinen
WO2020250075A1 (en) * 2019-06-11 2020-12-17 Santoni S.P.A. A circular knitting machine and a method for moving the needles of a circular knitting machine
EP3795729B1 (de) * 2019-09-18 2023-06-07 Groz-Beckert KG Platine, platinenanordnung und kettenwirkmaschine

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE1635844B2 (de) * 1967-02-14 1976-05-06 Sulzer Morat GmbH, 7026 Bcmlanden Mustervorrichtung an einer strickmaschine mit zweiteiligen nadeln
GB1342972A (en) * 1971-08-28 1974-01-10 Wildt Mellor Bromley Ltd Knitting machine needle
US3780539A (en) * 1972-05-16 1973-12-25 Singer Co Needle actuating camming for circular knitting machines
DE2705605C3 (de) * 1976-03-05 1981-10-22 Tecnología Industrial, Proyectos y Promociones, S.A., Tippsa, Mataro, Barcelona Schiebernadel für Strickmaschinen
ES8102221A2 (es) * 1980-02-20 1980-12-16 Tecnologia Ind Proyectos Y Pro Perfeccionamientos en las maquinas tricotosas de hacer punto
DE2820724C2 (de) * 1978-05-12 1982-05-19 Schaffhauser Strickmaschinenfabrik, Schaffhausen Mehrsystemige Rundstrickmaschine
US4608839A (en) * 1982-07-14 1986-09-02 Tibbals Jr Edward C Circular weft knitting machines
DE3510054C1 (de) * 1985-03-20 1986-10-09 Memminger Gmbh, 7290 Freudenstadt Strickmaschine mit wenigstens einem Nadeltraeger
DE3540685C1 (de) * 1985-11-16 1986-10-09 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt Strickmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102433675A (zh) * 2011-11-02 2012-05-02 泉州佰源机械有限公司 一种用于三角、滑块和鞍座的定位结构
US11684910B2 (en) 2018-07-16 2023-06-27 Battelle Energy Ailiance, LLC Composite media for non-oxidative ethane dehydrogenation, and related ethane activation systems and method of processing an ethane-containing stream

Also Published As

Publication number Publication date
EP0302286A3 (de) 1991-11-21
EP0302286A2 (de) 1989-02-08
ES2064331T3 (es) 1995-02-01
DE3821213C2 (enrdf_load_stackoverflow) 1990-02-15
US4920767A (en) 1990-05-01
JPS6440644A (en) 1989-02-10
DE3821213A1 (de) 1989-02-09
JP2556356B2 (ja) 1996-11-20

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