US3563059A - Circular knitting machine with multiple striping means - Google Patents

Circular knitting machine with multiple striping means Download PDF

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Publication number
US3563059A
US3563059A US812711A US3563059DA US3563059A US 3563059 A US3563059 A US 3563059A US 812711 A US812711 A US 812711A US 3563059D A US3563059D A US 3563059DA US 3563059 A US3563059 A US 3563059A
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US
United States
Prior art keywords
dial
cam
knitting machine
circular knitting
catch hook
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
US812711A
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English (en)
Inventor
Johann Martinetz
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.)
Mayer and Cie GmbH and Co
Original Assignee
Mayer and Cie GmbH and Co
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
Priority claimed from DE19681760196 external-priority patent/DE1760196C3/de
Application filed by Mayer and Cie GmbH and Co filed Critical Mayer and Cie GmbH and Co
Application granted granted Critical
Publication of US3563059A publication Critical patent/US3563059A/en
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
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/26—Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28—Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns

Definitions

  • the arrangement comprises a plurality of thread insertion fingers which are operatively mounted adjacent to the cylinder cam box of the circular knitting machine.
  • a preselected thread insertion finger is adapted to guide a striping thread into an operative position in which it can be engaged by a catch hook which is operatively mounted in the dial of the circular knitting machine.
  • the movement of the catch hook is guidingly controlled by a cam member mounted on the dial of the circular knitting machine.
  • This cam member is fixed with respect to the cylinder cam box, whereas the dial cam members which guide the dial needles are movably mounted in the dial cam box ring so that they may be moved from a normal knitting position to a delayed-timing knitting position. Consequently, the positions of the cam member for controlling the movement of the catch hook and the cam members of the cylinder cam box are fixed with respect to each other, whereas the cam members of the dial cam box, which control the movement of the dial needles, are movable with respect to the aforementioned two cam members.
  • the striping arrangement which includes a plurality of thread insertion fingers which are mounted adjacent to each other, must be able to securely guide the preselected striping thread to the dial or cylinder needles in such way that it can be engaged by these needles in a smooth and secure manner.
  • a catch hook has been operatively mounted into the circular knitting machine for providing such a secure guiding of the striping thread.
  • circular knitting machines having a large number of knitting systems mounted around the periphery of the machine, one is faced with a twofold design problem.
  • the multiple striping arrangement which includes a plurality of thread insertion fingers mounted adjacent to each other.
  • the thread insertion fingers cooperate with the catch hook to provide a secure guiding for the striping thread during the knitting operation.
  • the aforementioned design problem is aggravated by the requirement that the guiding means for the striping threads must operate during two difiYerent knitting operations, namely a synchronized-timing knitting operation and a delayed-timing knitting operation.
  • the cam members of the dial cam box must be shifted relative to the cylinder cam box when the circular Patented Feb. 16, 1971 knitting machine is adjusted from one to the other of the aforementioned two knitting operations.
  • the cam members for the catch hook are independently mounted from the other cam members in the dial cam box, the latter being shiftable from a synchronized timing knitting operation to a delayed timing knitting operation and vice versa, whereas the cam members for the catch hook are fixed in position in relation to the cam members of the cylinder cam box.
  • Another more specific object of this invention is to provide multiple striping means which securely guide the striping threads during a single-face fabric knitting operation in which only the cylinder needles operate.
  • the striping arrangement of the instant invention comprises the usual plurality of juxtapositioned thread insertion fingers which form part of the striping means in each knitting system and the usual catch book which co-operates with the thread insertion fingers.
  • the catch hook is guided in a separate track of the dial cam box and, consequently, is not acted on by the cam members which control the movement of the dial needles.
  • Such an arrangement makes it possible to guide the catch hook in such a manner that it provides a secure guiding of the striping threads in the same manner during a synchronizedtiming knitting operation, a delayed-timing knitting operation and a knitting operation wherein the cylinder needles operate only, i.e. a single-face fabric knitting operation.
  • the guide track for the catch hook is advantageously positioned in a special dial cam race ring portion which can be adjusted with respect to the cam members for controlling the movement of the dial needles.
  • the special dial cam race ring portion is fixed with respect to the cylinder cam box, thereby providing for a secure guiding of the striping threads in co-operation with the thread insertion fingers, both in the synchronized timing knitting operation and in the delayed-timing knitting operation. Consequently, the dial cam race ring portion for the catch hook causes the catch hook to operate in the same manner regardless of whether the dial cam members for the dial needles are positioned in the dial cam box in the synchronized-timing knitting position or in the delayed-timing knitting position.
  • the special dial cam box ring portion causes the catch hook to move into its operative position prior to the corresponding movement of the dial needles, so that each striping thread which has been moved forwardly by its corresponding thread insertion finger, can be securely grasped and guided to the knitting needles.
  • FIG. 1 is a diagrammatic sectional view through the dial and cylinder cam boxes of a circular knitting machine including a multiple striping arrangement in accordance with this invention
  • FIG. 2 is a plan schematic view of the dial cam races for the dial needles and the catch hook.
  • FIGS. 3 and 4 are illustrations of the knitting curves of the cylinder and dial needles as Well as of the guide curve for the catch hook, respectively for a synchronized and delayed-timing knitting operation.
  • FIG. 1 the rotating needle cylinder 1 and the rotating dial disc 2 in a circular knitting machine.
  • the cylinder 1 cooperates with a stationary cylinder cam box 3 also mounted in the circular knitting machine.
  • the dial disc 2 cooperates with a stationary dial cam box ring 4 which is adjustably mounted in the circular knitting machine, and is operatively connected to an adjusting mechanism (not illustrated), which is adapted to move the stationary cam box ring 4 from a synchronized timing knitting position to a delayed-timing knitting position and vice versa.
  • the catch hook cooperates with a special dial cam race portion 5 which has the cams 6 and 7 mounted therein.
  • the guide tracks for the short and long dial needles (not shown in the drawing) are defined by the earns 11, 12, 13 which form the guide tracks 9 and 10.
  • the cams 11, 12, 13 are mounted in the dial cam box ring 4.
  • the circular knitting machine comprises a fixed frame 15 on which there is mounted a supporting shaft 14 for supporting the dialcam-ring-portion 5 so that the latter is fixed with respect to the stationary cylinder cam box 3.
  • the striping arrangement comprises a box 16 for each knitting system in which there are mounted a plurality of thread insertion fingers 17.
  • the box 16 is securely mounted on the cam box ring 3.
  • the circular knitting machine is further provided with a suitable angular flange portion 15a which supports a ring 19 which has a semicircular passage 18 through which the shaft 14 extends.
  • the ring 19 is secured to the dial cam box ring 4 and, when angularly adjustably shifted from one limit-position to another by means of the shifting of the support ring 19, causes the required angular adjustment of the dial cam box ring 4 relative to the cylinder cam box ring 3 so that the necessary shifting from the synchronized-timing knitting position to the delayed-timing knitting position can be effected and vice versa.
  • the special dial cam box ring portion 5 remains stationary.
  • FIG. 2 which illustrates in plan view the dial cam ring 4 as well as the special dial cam ring 5 for guiding the catch hook
  • the guide cam track 8 guides the catch hook.
  • the guide tracks 9 and are defined by the cam portions 11, 12, 13, Whereas the guide track 8 is defined by the cam portions 6 and 7.
  • the dial cam ring 4 is shiftable relative to the cam ring 5.
  • FIG. 2 There is diagrammatically illustrated by means of a solid line 24 the knitting curve for the dial needles of the circular knitting machine. Furthermore, the path described by the catch hook is illustrated by the dashed line 25 in FIG. 2. The movement of the catch hook is, of course, controlled by the guide track 8. The dial needles move in the direction of the guide track 8. The dial needles move in the direction of the arrow 26. It can be noted from FIG. 2 that the guide hook is projected to its most forward position earlier and ahead in relation to the projection of the dial needles. As can be clearly noted from FIGS.
  • this arrangement assures that the catch hook is located in its most forward position before the first thread insertion finger 17a of a multiple striping arrangement has been passed, both during a synchronized-timing knitting operation and a delayed-timing knitting operation.
  • the secure guiding of the striping thread and the secure engagement thereof by a catch hook is assured both during the synchronized as well as the delayed-timing operation.
  • FIGS. 3 and 4 shows that, due to the fixed relationship between the cam ring 5 which supports the cams 6 and 7 for the guiding of the catch hook and the cylinder cam box ring 3, no change of the relative positions of the knitting curve 27 and the guide curve 25 of the catch hook occurs when the dial cam ring box 4 is shifted from a synchronized-timing knitting operation position to a delayed-timing knitting operation position.
  • the only change that can be noted in FIGS. 3 and 4 is that the relative position of the knitting curve 24 for the dial needles changes in respect to the knitting curve 27 and the guide curve 25 as well as with respect to the thread insertion fingers 17 of the striping arrangement 16.
  • a multiple striping mechanism in a circular knitting machine including means operatively connected to said dial cam race for selectively moving the latter relative to said cam race for controlling the movement of said catch hook.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US812711A 1968-04-17 1969-04-02 Circular knitting machine with multiple striping means Expired - Lifetime US3563059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681760196 DE1760196C3 (de) 1968-04-17 Rundstrickmaschine mit Mehrfach-Ringelapparaten

Publications (1)

Publication Number Publication Date
US3563059A true US3563059A (en) 1971-02-16

Family

ID=5695988

Family Applications (1)

Application Number Title Priority Date Filing Date
US812711A Expired - Lifetime US3563059A (en) 1968-04-17 1969-04-02 Circular knitting machine with multiple striping means

Country Status (5)

Country Link
US (1) US3563059A (enrdf_load_stackoverflow)
JP (1) JPS505312B1 (enrdf_load_stackoverflow)
ES (1) ES364978A1 (enrdf_load_stackoverflow)
FR (1) FR1599908A (enrdf_load_stackoverflow)
GB (1) GB1208244A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720173A (en) * 1984-03-09 1988-01-19 Canon Kabushiki Kaisha Display having an orientation treatment between 0° and 15° to the spacer wall
US20040089027A1 (en) * 2002-09-06 2004-05-13 Dietmar Traenkle Circular knitting machine having at least one moveable thread guide

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720173A (en) * 1984-03-09 1988-01-19 Canon Kabushiki Kaisha Display having an orientation treatment between 0° and 15° to the spacer wall
US20040089027A1 (en) * 2002-09-06 2004-05-13 Dietmar Traenkle Circular knitting machine having at least one moveable thread guide
US6907758B2 (en) 2002-09-06 2005-06-21 Sipra Patententwicklungs - Und Beteiligungsgesellschaft Mbh Circular knitting machine having at least one moveable thread guide
SG117461A1 (en) * 2002-09-06 2005-12-29 Sipra Patent Beteiligung Circular knitting machine having at least one moveable thread guide

Also Published As

Publication number Publication date
GB1208244A (en) 1970-10-07
DE1760196B2 (de) 1976-09-23
JPS505312B1 (enrdf_load_stackoverflow) 1975-03-03
ES364978A1 (es) 1971-02-16
DE1760196A1 (de) 1972-08-10
FR1599908A (enrdf_load_stackoverflow) 1970-07-20

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