US3012425A - Tracing device for textile machines - Google Patents

Tracing device for textile machines Download PDF

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Publication number
US3012425A
US3012425A US798255A US79825559A US3012425A US 3012425 A US3012425 A US 3012425A US 798255 A US798255 A US 798255A US 79825559 A US79825559 A US 79825559A US 3012425 A US3012425 A US 3012425A
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United States
Prior art keywords
tracing
web
elements
pressure
knitted
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Expired - Lifetime
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US798255A
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English (en)
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Liebrandt Karl
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Individual
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Individual
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Publication of US3012425A publication Critical patent/US3012425A/en
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    • 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
    • D04B35/22—Devices for preparatory treatment of threads

Definitions

  • This invention relates to marking devices and is particularly directed to a device for marking or tracing on a moving web the outline of blanks or pieces which thereafter are cut out from the web for further processing into finished articles.
  • the known tracing devices have considerable shortcomings.
  • the knitting tools are partly covered and become less accessible.
  • the invention provides a marking or tracing device, in which the individual tracing elements, used for marking the pieces or blanks to be cut from a web, are arranged in holding members and are urged against the web by fluid pressure means.
  • the tracing element proper may consist of a simple lead rod, as it is used in lead pencils, or may comprise ink such as the filling used in ball point pens, or the like.
  • This writing medium may be disposed in a narrow tube which, in turn, is connected by a flexible hose to a pressure line.
  • a pressure reducing valve may be provided for regulating the pressure required in any particular case. After the valve has been set, no further supervision or handling by an operator is necessary since an even tracing pressure will automatically be maintained.
  • the tracing elements are arranged below the knitted web so that they may be pressed against it from its underside Without interfering with the knitting tools.
  • FIG. 1 is a side view of a tracing element together with the associated parts of a knitting machine
  • FIG. 2 is an illustration of a plurality of tracing elements and the means for driving the same.
  • FIG. 3 shows one tracing element on an enlarged scale.
  • a tracing element 4 is shown, arranged in close proximity to a sinker 1 and a needle 2 of a knitting machine K and below a web 3 which is being made on said machine.
  • the tracing elements 4 are fastened in holding means 5 which are adjustably arranged in spaced relationship on Tails 6. and
  • the tracing elements may be, alternately disposed on the rails 6 and7. It is preferred that the tracing elements 4 be arranged below the web and that they be urged against the web by means exerting pneumatic or hydraulic pressure.
  • FIG. 3 shows an individual tracing element on a larger scale. It comprises a small tube 9 which receives a rodshaped piece of lead 8 sheathed by the tube in an airtight manner.
  • Tube 9 is connected by means of a flexible hose 16 to a common pressure line 11 (see FIG. 2) fitted with a pressure reducing valve 12.
  • a pressure reducing valve 12 By means of this valve, the pressure required in any particular case can be adjusted in dependence on the type of web 3 which is being manufactured. For instance, 2 atmospheres excess pressure and a lead of hardness 313 may be used.
  • the rails 6 and 7 may be driven in a known manner; they may, for instance, comprise terminal rack portions 6a and 7a, respectively, (see FIG. 2) between which a pinion 13 is mounted on the frame of the knitting machine. By this arrangement, the movement of one rail is transmitted to the other rail so as to move it in opposite direction.
  • a lever 14 is provided which carries a roll 15 that is urged into engagement with a cam by conventional means, e.g. a traction spring 20 acting on lever 14, as illustrated.
  • the cam 16 is shaped in accordance with the desired pattern or outline to be obtained so that the tracing elements 4 mounted on rail 6 upon one revolution of the cam will trace upon the web 3 the contour of a stocking half blank, for example, thereafter to be cut out from the web.
  • the symmetrical contour-tracing will be marked by the tracing elements 4 mounted on rail 7.
  • the drive of cam 16 is effected by a shaft 17, an intermediate gearing 21, an auxiliary shaft 18 and a turning gear 19 which meshes with a gear 22 integral with or attached to cam 16.
  • cam 16 and gear 19 have to be exchanged in accordance therewith.
  • a tracing device for marking or tracing I predetermined path along the underside of 'said emerging web, and fluid-pressure control means for urging said marking elements against said underside of said web 2.
  • a device for tracing pieces to be cut from a knitted web along a pattern said device being of the type having individual tracing elements associated with and mounted in the vicinity of the tools for knitting said web, rail 7 means for holding said tracing'elements and means for moving said elements along the lines of said pattern, said device comprising fluid-operated means and connecting means between said holding means and said fluid-operated 1 means for urging said tracing elements against the underside of said web during the tracing operation.
  • said a means for urging said tracing elements against said underside of said web comprises a common fluid operated pressure line for said tracing elements, said connecting means comprising individual connecting ducts from said pressure line to said tracing elements for transmitting fluid pressure from said pressure line thereto, and control means in said pressure line for regulating said fluid pressure transmitted to said tracing elements by which they are urged againstsaid web during the tracing operation.
  • a device for tracing pieces to be cut from a knitted web along a pattern said device being of the type having tracing elements associated with the tools for knitting said web, rail means for holding said tracing elements and means for moving said elements along the lines of said pattern; said tracing elements, rail means, and moving means, being disposed in a plane below the'knitted web and comprising a common fluid-operated pressure line for said tracing elements, individual connecting ducts to said elements-for transmitting fluid pressure from sm'd pressure line to said tracing elements, and a control valve in said pressure line for regulating said fluid pressure transmitted to said tracing elements by which they are urged against said web from the underside thereof during the tracing operation.
  • each of said tracing elements comprises a tube with a writing medium held in said tube in an air-tight manner.
  • a device for tracing pieces to be cut from a knitted web along a pattern said device being of the type having individual tracing elements associated with and mounted in the vicinity of the toolsfor knitting said Web, rail means for holding said tracing elements and means for moving said elements along the lines of said pattern, said device comprising pneumatically operated means for urging said tracing elements against the underside of said Web during the tracing operation, wherein each of said tracing elements comprises a tube with a writing medium held in air-tight manner in said tube and flexible connecting means for attaching said tube to a pressure line for admitting a pneumatic pressure medium to urge said writing medium against said web.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US798255A 1958-04-16 1959-03-09 Tracing device for textile machines Expired - Lifetime US3012425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3012425X 1958-04-16

Publications (1)

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US3012425A true US3012425A (en) 1961-12-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
US798255A Expired - Lifetime US3012425A (en) 1958-04-16 1959-03-09 Tracing device for textile machines

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US (1) US3012425A (fr)
FR (1) FR1214493A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256581A (en) * 1966-06-21 Apparatus for creating designs in pile fabrics
US3521469A (en) * 1968-10-01 1970-07-21 Cocker Machine & Foundry Co Apparatus for marking knitted fabric

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US709225A (en) * 1902-05-10 1902-09-16 William H Jordan Paper-ruling machine.
US860386A (en) * 1904-06-01 1907-07-16 Christopher C Jordan Paper-ruling machine.
US2556757A (en) * 1944-04-13 1951-06-12 Bernard L Zangwill Glass-cutting apparatus
US2688189A (en) * 1951-06-22 1954-09-07 Eastman Kodak Co Marking device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US709225A (en) * 1902-05-10 1902-09-16 William H Jordan Paper-ruling machine.
US860386A (en) * 1904-06-01 1907-07-16 Christopher C Jordan Paper-ruling machine.
US2556757A (en) * 1944-04-13 1951-06-12 Bernard L Zangwill Glass-cutting apparatus
US2688189A (en) * 1951-06-22 1954-09-07 Eastman Kodak Co Marking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256581A (en) * 1966-06-21 Apparatus for creating designs in pile fabrics
US3521469A (en) * 1968-10-01 1970-07-21 Cocker Machine & Foundry Co Apparatus for marking knitted fabric

Also Published As

Publication number Publication date
FR1214493A (fr) 1960-04-08

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