US2037798A - Knitting mechanism - Google Patents

Knitting mechanism Download PDF

Info

Publication number
US2037798A
US2037798A US639636A US63963632A US2037798A US 2037798 A US2037798 A US 2037798A US 639636 A US639636 A US 639636A US 63963632 A US63963632 A US 63963632A US 2037798 A US2037798 A US 2037798A
Authority
US
United States
Prior art keywords
bar
bars
section
knitting
needles
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
US639636A
Other languages
English (en)
Inventor
Kinsella Edward
Pratt John Gordon
Kelsall Bernard
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.)
Celanese Corp
Original Assignee
Celanese Corp
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 Celanese Corp filed Critical Celanese Corp
Application granted granted Critical
Publication of US2037798A publication Critical patent/US2037798A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • D04B27/06—Needle bars; Sinker bars
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Definitions

  • This invention relates to the production of textile fabrics, and more particularly to the production of knitted fabrics on warp knitting machines.
  • the object of the invention is to improve warp knitting machines with the object of greatly increasing their rate of Working and smoothness of operation, and rendering them capable of knitting fabrics of better and more uniform quality.
  • the inertia of the bar may be made quite small thus permitting a high speed of operation.
  • the bars extending along the length of the machine and carrying the moving knitting parts e. g. the needles, sinkers, guides and the presser, are formed with recessed beam-sections, and are thereby adapted to offer a high resistance to bending in the direction of motion of the bars.
  • the cross-section of the bar vis such as to have a moment of inertia about a radius from the centre of motion of the bar through the bar itself which is high in comparison with the area of the section.
  • the bars should be made of light material in order to maintain the weight low while obtaining high rigidity.
  • Light aluminium alloys of high modulus of elasticity such as those used in modern internal combustion engines for racing purposes are particularly suitable, since they combine an extremely high resistance to defieetion with very low specific gravity.
  • the bars may be made in any convenient manner, e. g. built-up, cast or extruded, though of these three methods the last is preferred in view of the length of the bars which renders casting diliicult and of the advantages inherent in a solid bar as opposed to a built-up bar.
  • suitable members may subsequently be added to the bar to provide for the connection of the bar to the rocker arm carrying it.
  • machining may be resorted to for the purpose of providing convenient attachments for the knitting parts.
  • a pressed or rolled sheet-metal member may be used, suitably stiiened against distortion of the bar-section.
  • the inventionV may be used with advantage in conjunction with the invention described in U. S. application S. No. 639,637 filed October 26, 1932, which is primarily concerned with securing the knitting parts together in series in a stripI of light alloy which is then fastened in position along the edge of the bar, other methods for securing the knitting parts in series also being described.
  • Figure 1 shows a view of a needle bar
  • Figure 2 is a detailed view on a larger scale of part of Figure 1;
  • Figure 3 shows a sectional view of Figure 2 together with needle sections and clamping plate for securing same;
  • Figure 4 is a view of a guide bar;
  • FIGS 5 and 6 are detailed views of the guide bar shown in Figure 4 together with its connections;
  • Figure '7 is a View of the presser bar with the presser attached
  • Figure 8 is a view of the sinker bar
  • Figure 9 is a view of the bars assembled.
  • the needle bar I0 is shown deeply channelled out at II, thus leaving the bulk of the metal at the upper and lower edges of the section and forming a beam of I-section.
  • the channelling II is interrupted as at I2 for the connection of the bar to the ends of the needle bar operating or supporting arms shown at I3 in dotted lines, bolt holes being provided at I4 for this connection.
  • the bar is recessed on one face at I6 and in the recessed portion is provided with frequently occurring grooves l1 into which ridges I5 on the needle sections fit.
  • the bar is also provided on its recessed face with a long horizontal groove, this groove I9 engaging with upstanding parts 20 on the needle section shown in Figure 3.
  • the long groove I9 and the Vertical grooves I'I accurately locate and align the needles 22.
  • I-Ioles 2I are provided for bolts (not shown) by means of which the needles 22 are clamped to the recessed face of the bar by means of a clamping plate 24.
  • the inner face of the clamping plate 24 is lined with felt at 25 engaging with ridges 26 on the forward face of the needle sections.
  • the bar is tapered at 2'I beyond the end supports I3.
  • the bar is preferably cast from a high tensile aluminium alloy.
  • the structure shown provides rigidity notwithstanding these limitations, the flange
  • the bar is reinforced at intervals by means of Webs 3
  • Sections of guides of the kind described in U. S. Patent No. 1,980,209 are attached to the face 32 of the bar being bolted thereto at 33, to form a continuous series.
  • the bar is connected by means of a boss 35 to a lapping mechanism e. g. of the kind described in U. S. Patent No. 1,981,511.
  • a presser bar is sho-wn at 43, the section 44 of the bar being recessed at 46, and substantially of U-form, giving the bar a high resistance to bending under the transverse forces applied in the plane of the flat face of the bar,
  • the presser 45 itself is attached to the underside of the forward edge of the bar, which is carried by levers, of which one is indicated in dotted lines at 41.
  • the bar may be of rolled, cast or extruded material.
  • FIG 8 a sinker bar 48 is shown, a section of the bar being indicated at 49.
  • the moment of inertia of the section at 49 is considerable when taken about an axis at right angles to its web. Though distorted, the section may be regarded as actually of I or H form, the particular section shown being suitable for use in the machine described in Patent No. 1,981,513, where the space available for the bar is closely circumscribed by the other bars and their operating and supporting levers.
  • the web 50 of the bar is perforated as at 5I to ensure lightness and is provided with pads 52 indicated in dotted lines in the section 49, the pads being bolted at 53 for the connection of the bar to its rocker arm. Sections of sinkers are secured to the face 55 of the bar by means of bolts passing through the bars 56 bolted in this face.
  • the bar is conveniently made from an extruded length the pads 52 being welded in position in the recessed under face of the bar.
  • Figure 9 is a view of the bars described with reference to the preceding figures, assembled in their knitting relationship, the needles, sinkers, and thread guides also being shown.
  • the needle bar IIJ carrying the needles 22 is shown slightly inclined to the rear.
  • the needles 22 move substantially parallel to their length.
  • the bar I0 is carried by a number of levers I3, the end of one of which is shown in chain dotted lines.
  • Two guide bars 30 are shown secured to their supports 31 in the manner described with reference to Figures 4 and 5, sections of guides 5'I being secured to the bars by means of screws 58 so that their lower ends are opposite the heads of the needles 22.
  • sinker bar 50 is carried on a plurality of levers 59, one of which is shown in chain lines, the sinkers being secured thereto by means of bolts 6I.
  • the sinkers 60 project through the row of needles 22, and move substantially at right angles to the line of the needles.
  • the presser 45 is carried by its bar 43 on the ends of a number of levers 41, one being shown in ting machine, said bar being of U-section adapted to be supported at one side of the U and distorted on the other side to converge towards the needle heads, said bar being provided with statt'ening ribs adapted to act as eantilevers to resist cantilever 5 deflection of the bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US639636A 1931-11-03 1932-10-26 Knitting mechanism Expired - Lifetime US2037798A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2037798X 1931-11-03

Publications (1)

Publication Number Publication Date
US2037798A true US2037798A (en) 1936-04-21

Family

ID=10896783

Family Applications (1)

Application Number Title Priority Date Filing Date
US639636A Expired - Lifetime US2037798A (en) 1931-11-03 1932-10-26 Knitting mechanism

Country Status (2)

Country Link
US (1) US2037798A (de)
FR (1) FR744837A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476344A (en) * 1945-10-15 1949-07-19 Vanity Fair Mills Inc Knitting machine
US2694302A (en) * 1952-12-31 1954-11-16 Carl E Weinberg Mechanism for warp knitting machines
US3289438A (en) * 1963-06-14 1966-12-06 Kohl Karl Sinker bar for straight machines
EP3249087A1 (de) * 2016-05-27 2017-11-29 Karl Mayer Textilmaschinenfabrik GmbH Barre einer kettenwirkmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8816672U1 (de) * 1988-12-01 1990-04-19 Karl Mayer Textilmaschinenfabrik GmbH, 6053 Obertshausen Kettenwirkmaschine mit mindestens einer Barre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476344A (en) * 1945-10-15 1949-07-19 Vanity Fair Mills Inc Knitting machine
US2694302A (en) * 1952-12-31 1954-11-16 Carl E Weinberg Mechanism for warp knitting machines
US3289438A (en) * 1963-06-14 1966-12-06 Kohl Karl Sinker bar for straight machines
EP3249087A1 (de) * 2016-05-27 2017-11-29 Karl Mayer Textilmaschinenfabrik GmbH Barre einer kettenwirkmaschine

Also Published As

Publication number Publication date
FR744837A (de) 1933-04-27

Similar Documents

Publication Publication Date Title
US2155146A (en) Knitting machinery
US2292287A (en) Warp knitting machine
US2308430A (en) Warp tension bar for textile machines
US2037798A (en) Knitting mechanism
US3587254A (en) Guide bar swinging mechanism for a warp knitting machine
US3303670A (en) Multi-slide guide-bar
US2014529A (en) Knitting mechanism
US4145897A (en) Hook needle type knitting machine
JPS5938334B2 (ja) ヘルドフレ−ム
US2273246A (en) Straight-type warp-knitting machine
US1981512A (en) Mechanism for effecting the between-needle movements of thread guides in warp-knitting machines
US3512378A (en) Lace-knitting machine
US2941386A (en) Element positioning means for straight knitting machines
US2022448A (en) Guide needle lapping machine
US1981513A (en) Knitting mechanism
US2986909A (en) Driving mechanism for knitting tools of warp knitting machines
US2714811A (en) Knitting machine needle structure and operating means therefor
US2167408A (en) Knitting machinery
US3046764A (en) Thread guide unit
US2036874A (en) Knitting mechanism
US3289438A (en) Sinker bar for straight machines
US3412583A (en) Yarn tension means for warp knitting machines
GB190925531A (en) Improvements in or relating to Embroidery Machines.
US3508419A (en) Guide bar swinging motion for a raschel knitting machine
US3464235A (en) Raschel warp knitting machine