EP0315909A1 - Mechanism for collective adjustment of densities in circular knitting machines - Google Patents

Mechanism for collective adjustment of densities in circular knitting machines Download PDF

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Publication number
EP0315909A1
EP0315909A1 EP88118396A EP88118396A EP0315909A1 EP 0315909 A1 EP0315909 A1 EP 0315909A1 EP 88118396 A EP88118396 A EP 88118396A EP 88118396 A EP88118396 A EP 88118396A EP 0315909 A1 EP0315909 A1 EP 0315909A1
Authority
EP
European Patent Office
Prior art keywords
holder
ring
cam
auxiliary pin
cam block
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
EP88118396A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rudolf Bandoch
Bohumi Dipl.Ing. Kosik
Vojtech Dipl.-Ing. Krytinar
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.)
ZVS VYZKUMNEVYVOJOVY USTAV KONCERNOVA UCELOVA ORGANIZACE
Original Assignee
ZVS VYZKUMNEVYVOJOVY USTAV KONCERNOVA UCELOVA ORGANIZACE
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 ZVS VYZKUMNEVYVOJOVY USTAV KONCERNOVA UCELOVA ORGANIZACE filed Critical ZVS VYZKUMNEVYVOJOVY USTAV KONCERNOVA UCELOVA ORGANIZACE
Publication of EP0315909A1 publication Critical patent/EP0315909A1/en
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/02—Circular knitting machines with independently-movable needles with one set of needles
    • D04B9/025—Circular knitting machines with independently-movable needles with one set of needles with stitch-length regulation

Definitions

  • the invention relates to a mechanism for collective adjustment of densities in circular knitting machines, particularly collective adjustment of densities with the possibility of individual adjustment of the density in individual knitting feeds of the machine.
  • Known stitch cams in circular knitting machines are as a rule adjusted to required position in individual knitting feeds individually be means of screws, which during screwing act by their faces directly on the stitch cams or on the holder to which one or more stitch cams are fixed.
  • screws are provided with a conical face which is in contact with a conical face of the holder of one or more stitch cams so that an axial motion of the screw will be transferred to the holder.
  • a disadvantage of said embodiment is that when changing the fabric density and thus changing the thread feed, it is necessary to adjust every stitch cam independently.
  • Mechanism to perform adjustment of the density especially in needle cylinder stitch cams by a change of mutual position of the needle beds and of the cams in the direction of the needle cylinder axis is known, said adjustment causes axial motion of the needle bed or of the cams.
  • a disadvantage of said embodiment is that the position of the raising cams is also changed, what on the one hand is not suitable in case of some structures and on the other hand larger reserves in needles raising are necessary what reducess the possibility to use larger number of knitting feeds in the knitting machine.
  • the mechanism for collective adjustment of the densities in circular knitting machines which is characterized in that in the cam block there is located an axially shiftable auxiliary pin with a projection leaning against the upper surface of a groove in a ring provided with a threaded part, and adjusting screw passes through the auxiliary pin, bevelled face of said adjusting screw bears against a bevelled surface in the cam holder, the upper part of the cams holder is provided with a projection against which bears upper end of a compression spring the other end of which bears against the bottom of a recess in the cam block.
  • An advantage of the mechanism according to the invention is a possibility to control various numbers of the stitch cams varying in dependence of the type of the machine and this enables to modify the cam system for example from a machine designed to produce jersey fabric to a machine to produce lay-in or plush fabrics.
  • Another advantage is that it is possible to adjust all stitch cams collectively to the same position and in individual system it is possible to adjust the stitch cams according to the need.
  • Stitch cams 1, 2, 3, 4 are located in a holder 6 with which they are inserted in a cam block 5 and control the needles 10 which are placed in a needle bed 7.
  • the stitch cams 1, 2, 3, 4, are set in the required positions by means of a ring 8 provided with threaded part 18 screwed into a thread in a cam carrier 17 and by means of a gear ring 9 via an auxiliary pin 13 which is provided with a protrustion 11 which by the action of a spring 12 leans against the upper surface 14 of a groove provided in the ring 8.
  • the auxiliary pin 13 is proviced with an adjusting screw 15 which is by its bevelled face, also due to the action of the spring 12, in contact with bevelled surface 20 provided in the holder 6.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP88118396A 1987-11-09 1988-11-04 Mechanism for collective adjustment of densities in circular knitting machines Ceased EP0315909A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS8026/87 1987-11-09
CS878026A CS265858B1 (en) 1987-11-09 1987-11-09 Device for densities mass adjusting on circular knitting frames

Publications (1)

Publication Number Publication Date
EP0315909A1 true EP0315909A1 (en) 1989-05-17

Family

ID=5430311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118396A Ceased EP0315909A1 (en) 1987-11-09 1988-11-04 Mechanism for collective adjustment of densities in circular knitting machines

Country Status (2)

Country Link
EP (1) EP0315909A1 (cs)
CS (1) CS265858B1 (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402164A1 (en) * 1989-06-09 1990-12-12 Precision Fukuhara Works, Ltd Central stitch controlling apparatus for circular knitting machine
ES2042356A1 (es) * 1990-04-14 1993-12-01 Sipra Tatententwicklungs Und B Disposicion de cerrojo para maquinas tricotosas, particularmente maquinas tricotosas circulares.
SG98362A1 (en) * 1997-12-19 2003-09-19 Falmac Ltd Improvements in or relating to knitting machines
CN103741355A (zh) * 2013-12-27 2014-04-23 柳州海华针织机械有限公司 一种针织大圆机中下三角间隙调整机构
CN111270399A (zh) * 2020-02-17 2020-06-12 泉州市洛江东晖机械有限公司 一种双面圆形针织机中的上盘织针轨迹调节装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008860B (de) * 1953-04-14 1957-05-23 Rund Und Flachstrickmaschb Veb Rundstrickmaschine
DE1162023B (de) * 1959-07-31 1964-01-30 Schubert & Salzer Maschinen Vorrichtung zum gleichmaessigen axialen Verstellen von Schlossteilen an mehrsystemigen Rundstrickmaschinen
FR2391300A1 (fr) * 1977-05-18 1978-12-15 Marchisio & Co G Metier a tricoter circulaire equipe d'un dispositif de reglage de la course des aiguilles du cylindre
GB2156866A (en) * 1984-03-29 1985-10-16 Precision Fukuhara Works Ltd Control device of stitch length and yarn guide means for circular knitting machines
DE3634784C1 (de) * 1986-10-11 1988-02-04 Sipra Patent Beteiligung Mehrsystemige Rundstrickmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1008860B (de) * 1953-04-14 1957-05-23 Rund Und Flachstrickmaschb Veb Rundstrickmaschine
DE1162023B (de) * 1959-07-31 1964-01-30 Schubert & Salzer Maschinen Vorrichtung zum gleichmaessigen axialen Verstellen von Schlossteilen an mehrsystemigen Rundstrickmaschinen
FR2391300A1 (fr) * 1977-05-18 1978-12-15 Marchisio & Co G Metier a tricoter circulaire equipe d'un dispositif de reglage de la course des aiguilles du cylindre
GB2156866A (en) * 1984-03-29 1985-10-16 Precision Fukuhara Works Ltd Control device of stitch length and yarn guide means for circular knitting machines
DE3634784C1 (de) * 1986-10-11 1988-02-04 Sipra Patent Beteiligung Mehrsystemige Rundstrickmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402164A1 (en) * 1989-06-09 1990-12-12 Precision Fukuhara Works, Ltd Central stitch controlling apparatus for circular knitting machine
ES2042356A1 (es) * 1990-04-14 1993-12-01 Sipra Tatententwicklungs Und B Disposicion de cerrojo para maquinas tricotosas, particularmente maquinas tricotosas circulares.
SG98362A1 (en) * 1997-12-19 2003-09-19 Falmac Ltd Improvements in or relating to knitting machines
CN103741355A (zh) * 2013-12-27 2014-04-23 柳州海华针织机械有限公司 一种针织大圆机中下三角间隙调整机构
CN111270399A (zh) * 2020-02-17 2020-06-12 泉州市洛江东晖机械有限公司 一种双面圆形针织机中的上盘织针轨迹调节装置

Also Published As

Publication number Publication date
CS802687A1 (en) 1989-03-14
CS265858B1 (en) 1989-11-14

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