US20010008079A1 - Knitting machine - Google Patents

Knitting machine Download PDF

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Publication number
US20010008079A1
US20010008079A1 US09/758,530 US75853001A US2001008079A1 US 20010008079 A1 US20010008079 A1 US 20010008079A1 US 75853001 A US75853001 A US 75853001A US 2001008079 A1 US2001008079 A1 US 2001008079A1
Authority
US
United States
Prior art keywords
rotation
knitting machine
rate
warp knitting
drive
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.)
Abandoned
Application number
US09/758,530
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English (en)
Inventor
Franz Exner
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik 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 Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Assigned to KARL MAYER TEXTILMACHINENFABRIK GMBH reassignment KARL MAYER TEXTILMACHINENFABRIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EXNER, FRANZ
Publication of US20010008079A1 publication Critical patent/US20010008079A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B25/00—Warp knitting machines not otherwise provided for
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/10—Devices for supplying, feeding, or guiding threads to needles
    • D04B27/24—Thread guide bar assemblies
    • D04B27/26—Shogging devices therefor

Definitions

  • the drive shaft is driven by the main shaft of the warp knitting machine via a so called stepping drive, which uses a system of transmissions and gears to reduce the rate of the revolution of the drive shaft until, at the switching moment, it reaches the value of approximately 0 and thereafter, is substantially increased.
  • a stepping drive is disclosed in a publication entitled “Warp Knitting Production” by Dr. S. Raz (see FIG. 36 and the accompanying text on page 56).
  • the stepping drive described above is disadvantageous because it has a relatively complex mode of construction and requires a very high degree of precision in its production and thus, expensive parts.
  • a further disadvantage resides in that a resetting of the “at rest” time of the stepping drive and the summing aggregate relative to each other, is costly and must take place mechanically.
  • German Patent No. 2,741,200 discloses, in one embodiment, how a pair of eccentric cams may be rotated along a predetermined turning angle by a mechanical system which includes a grooved drive shaft.
  • An object of the invention is to produce a warp knitting machine whose construction is simpler that than of the prior art.
  • This object is achieved by the present invention in that a sensor monitors the rate of revolution and angle of rotation of the main shaft and generates a sensor signal, so that the drive activation is achieved by an electric motor, and that a motor control arrangement is provided, which comprises an entry point for the sensor to signal, a storage means for at least one movement curve, which, for the formation of control signal, is read out in dependence of the rotational angle of the main shaft and has a segment of reduced rotational speed, and a synchronizing step which holds the mentioned segment in timely correspondence with the switching moment.
  • the coupling comprises a groove in a transfer shaft driven by an electric motor and, at least at the switching moment, a latch dropping into the groove which is rotatable about a pivot in an eccentric cam and, is removable from the groove after 180°.
  • a latch dropping into the groove which is rotatable about a pivot in an eccentric cam and, is removable from the groove after 180°.
  • the summing drive comprises a cam disk and an addition member.
  • the cam disk controls the usual overlaps and underlaps, while the addition member moves this control by a predetermined number of needle spaces.
  • an addition member for one needle space which is switched at every second main shaft revolution, there is provided, for example, a fabric comprised of pillar stitches, but whose stitches are secure. This also shows that the addition members may be combined, not only with the same, but with other pattern forming elements, such as cam disks.
  • FIG. 1 is a switching diagram of the warp knitting machine of the present invention.
  • FIG. 2 is a graphical exemplification of the movement curve.
  • FIG. 3 is a partial downward perspective view of a summing drive which may be utilized in the present invention.
  • FIG. 4 is the adjustment of the eccentric cam with a connecting rod
  • FIG. 1 shows a warp knitting machine 1 with a guide bar 2 which by means of summing drive 3 is moved in one direction and by means of spring 4 is returned again, as is indicated by double arrow 5 .
  • the warp knitting machine 1 further comprises a main shaft 6 with appropriate sensor 7 which generates signals indicating the rate of rotation and the angular position of the main shaft 6 .
  • sensors are generally speaking known and operate, for example, by reading bar codes.
  • the summing drive 3 comprises a cam disk 8 whose circumference determines the appropriate activation of the guide bar 2 for one or more working cycles.
  • the rate of rotation of the cam disk 8 is thus equivalent to that of main shaft 6 , or an integral proportion thereof, and is generated via a conventional coupling arrangement, for example, mechanical combination via a transmission.
  • the summing drive 3 further comprises a schematically indicated addition element 10 which is activated with the help of a switch coupling 11 and can then displace the guide bar 2 over a predetermined number of needle spaces. This occurs by way of an electric motor 12 which drives a drive shaft (not shown) which, in the switching moment, is connected with the eccentric cam and is rotated by 180° and thus, activates a displacement element via a connecting rod.
  • the control arrangement 14 comprises a data storage means 15 for a plurality of such movement curves 13 .
  • the sensor signal is led over a further port 17 of a synchronizing step 18 , which on the one hand, via conduit 19 activates the switch coupling 11 at the moment of switching S and on the other hand reads off the rotational angle ⁇ of the main shaft 6 of movement curve 13 by means of computer 20 .
  • the thus measured values of the rate of rotation of the electric motor 12 are converted by an output switch means 21 into a control signal for the electric motor 12 .
  • the control signals are transferred via conduit 22 to the electric motor 12 , whose “Is value” is signaled to the switch means 21 via a further conduit 23 so that the control circuit for the present position of electric motor 12 is closed.
  • the lie and form of movement curve 13 are preferably selected dependent upon the mean rate of rotation of the electric motor 12 , so that not only is a rate of rotation close to 0 obtained at the switching time S, but also the previous deceleration and subsequent acceleration of the mass and speed of the moving parts is adequately selected.
  • the adjustment of the at rest period is obtained by a simple adjustment of sensor 7 .
  • FIG. 3 reference numerals increase by one hundred are utilized for parts corresponding to those of FIG. 1.
  • a guide bar 102 is activated via a angle lever 130 of push rod 131 whose position is determined by the summing of a number of addition members 132 .
  • the addition members 132 are activated by the push rods 133 , whereby by means of eccentric cams 134 the rods are pushed or removed from the series of addition members 132 .
  • Each of the eccentric cams 134 is rotated 180° by means of a catch 138 rotatably attached thereto, which catch falls into a groove in transport shaft 135 .
  • the transport shaft 135 is operably connected with a gear wheel which via drive wheel 136 is attached to drive shaft 137 and driven thereby.
  • the drive shaft 137 is driven by an electric motor 112 . This electric motor is controlled in a similar manner to the electric motor 12 in FIG. 1.
  • the cam disk 8 was so provided to build two rows of pillar stitches. Then the guide bar 2 , by means of the addition member 10 , is displaced over one needle space. There follow two further pillar rows and thereafter, the return of the guide bar 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Looms (AREA)
US09/758,530 2000-01-14 2001-01-11 Knitting machine Abandoned US20010008079A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20000582.0 2000-01-14
DE20000582U DE20000582U1 (de) 2000-01-14 2000-01-14 Kettenwirkmaschine

Publications (1)

Publication Number Publication Date
US20010008079A1 true US20010008079A1 (en) 2001-07-19

Family

ID=7935895

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/758,530 Abandoned US20010008079A1 (en) 2000-01-14 2001-01-11 Knitting machine

Country Status (7)

Country Link
US (1) US20010008079A1 (fr)
JP (1) JP2001214353A (fr)
KR (1) KR100385628B1 (fr)
CN (1) CN1157508C (fr)
DE (1) DE20000582U1 (fr)
FR (1) FR2803858A1 (fr)
IT (1) ITTO20010015A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20000582U1 (de) * 2000-01-14 2000-03-30 Karl Mayer Textilmaschinenfabrik Gmbh, 63179 Obertshausen Kettenwirkmaschine
KR100459795B1 (ko) * 2002-06-19 2004-12-03 박승헌 경편기의 경사 송출 제어 시스템
US6941799B2 (en) 2003-10-20 2005-09-13 Borgwarner Inc. Real-time control system and method of using same
ITBS20060056A1 (it) * 2006-03-08 2007-09-09 Santoni & C Spa Dispositivo di comando per barre porta passette di macchine tessili lineari
DE202006016980U1 (de) * 2006-11-07 2006-12-28 Karl Mayer Textilmaschinenfabrik Gmbh Wirkmaschine
KR200446066Y1 (ko) * 2006-11-07 2009-09-24 칼 마이어 텍스틸마쉰넨파브릭 게엠베하 편물기계
EP2014811B1 (fr) * 2007-07-07 2013-09-11 Karl Mayer Textilmaschinenfabrik GmbH Procédé de fonctionnement d'un métier à tricoter à mailles jettées et métier à tricoter chaîne
CN104459442B (zh) * 2014-12-12 2015-09-16 卡尔迈耶（中国）有限公司 双针床经编机电气控制柜功能测试装置
EP3205760B1 (fr) * 2016-02-10 2018-04-04 Karl Mayer Textilmaschinenfabrik GmbH Métier à tricoter à chaîne double fonture
KR200482696Y1 (ko) 2016-09-08 2017-03-08 최영운 경편기의 장식 원사 공급장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117683C2 (de) * 1981-05-05 1984-12-06 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Vorrichtung zur Steuerung der Versatzbewegung einer Legeschiene
DD214400A1 (de) * 1983-04-05 1984-10-10 Wtz Tech Textilien Vorrichtung zur versatzsteuerung der legeschienen einer mehrlegeschienigen kettenwirkmaschine
CN1063499C (zh) * 1995-01-19 2001-03-21 日本迈耶株式会社 经编机的提花装置的控制方法
GB9605059D0 (en) * 1996-03-09 1996-05-08 Palmer Raymond L Drive system
DE20000582U1 (de) * 2000-01-14 2000-03-30 Karl Mayer Textilmaschinenfabrik Gmbh, 63179 Obertshausen Kettenwirkmaschine

Also Published As

Publication number Publication date
JP2001214353A (ja) 2001-08-07
CN1306108A (zh) 2001-08-01
KR100385628B1 (ko) 2003-05-27
ITTO20010015A1 (it) 2002-07-12
FR2803858A1 (fr) 2001-07-20
DE20000582U1 (de) 2000-03-30
ITTO20010015A0 (it) 2001-01-12
KR20010086279A (ko) 2001-09-10
CN1157508C (zh) 2004-07-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KARL MAYER TEXTILMACHINENFABRIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EXNER, FRANZ;REEL/FRAME:011579/0956

Effective date: 20010119

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION