US3651665A - Guide bar control for knitting machines - Google Patents

Guide bar control for knitting machines Download PDF

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Publication number
US3651665A
US3651665A US16883A US3651665DA US3651665A US 3651665 A US3651665 A US 3651665A US 16883 A US16883 A US 16883A US 3651665D A US3651665D A US 3651665DA US 3651665 A US3651665 A US 3651665A
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US
United States
Prior art keywords
movement
piston
guide bar
cams
oscillating shaft
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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
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US16883A
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English (en)
Inventor
Augustin Perrier
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.)
Manufactures Jean-Baptiste Martin Andre Charbin & Cie
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Individual
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Publication date
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Publication of US3651665A publication Critical patent/US3651665A/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B23/00—Flat warp knitting machines
    • D04B23/08—Flat warp knitting machines with provision for incorporating pile threads

Definitions

  • ABSTRACT A control apparatus for use in a Raschel machine for effecting U.S. Cl ..66/86 movements of the guide bar and comprising a pair of spaced 581 Field of Search ..66/84, 85, 86, 87 whch-are f l and W spmg means and on which the guide bar can slide with a reciprocating motion.
  • an apparatus adapted to be interposed between the guide bar for the pile thread of a Raschel machine, and the mechanisms controlling the reciprocating movement and the oscillating movement
  • the apparatus comprising supports connected to the oscillating shaft, slides connected to the supports which slides are parallel to each other and perpendicular to the oscillating shaft, the slides each serving as a guide, a spring-loaded piston in each slide, a cam acting on each piston against the spring action, the cams being supported on rotary shafts parallel to the oscillating shaft and mounted on a stationary support on the machine, spaced bars supported by the pistons and their piston rods, the bars being parallel to the oscillating shaft and being displaceable by the pistons under the action of the cams and springs whilst maintaining their spacing, brackets slidable along the bars with a reciprocating motion, and a guide bar connected to the brackets and adapted to be coupled by a swivel connection to the mechanism for controlling the reciprocating movement.
  • each piston Preferably there is provided at the top of each piston a roller driven by the rotating cams.
  • each piston there is provided above each piston, two cams rotating in the opposite direction, at half-speed in relation to the alternating movement of the oscillating shaft.
  • the guide bar is lowered when it moves back on one needle row, while it remains in the upper position when it returns advancing on this same needle row.
  • FIG. 1 is a part-sectional elevation of the mechanical apparatus according to the invention where the guide bar for the pile thread is lowered by the cams;
  • FIGS. 2 to 9 are end views, i.e., in the plane at right angles to the oscillating shaft, illustrating the difierent successive phases of an operating cycle, in the case of knitting on a Raschel machine with two rows of needles.
  • the mechanical apparatus is hung on the oscillating control shaft 1 provided in the normal manner on a knitting machine of the Raschel type.
  • This shaft 1 oscillates alternately in one direction and the other. It is integral with supports 2, which it is assumed are two in number (FIG. 1).
  • supports 2 which it is assumed are two in number (FIG. 1).
  • On each support 2 there is fixed a slide which may be constituted by a cylinder 3 in which slides a piston 4.
  • Each of the pistons 4 is extended downwards by a rod 5 provided at its end with a bearing 6.
  • a compression spring 7 is housed around the rod 5, between the piston 4 and the base 8 of the stationary cylinder 3 on which it is supported.
  • Above the cylinder 3, the pistons 4 are connected by a bar 9 parallel to the shaft 1.
  • a similar bar 10 connects the two bearings 6.
  • the two bars 9 and 10 serve as guides for perforated slidable brackets 11. These brackets are perpendicular to the oscillating shaft 1, and, at their lower end, they are fixed to the back of a guide bar 12.
  • the guide needles 13 of this bar are used for guiding the pile thread 14 of the plush or velvet which it is proposed to knit.
  • the bar 12 is provided at one of its ends with a swivel 15, which a pivoted lever 16 connects to the known coupling (not shown) of a mechanism of the normal type able to impart to the guide bar 12 an alternating reciprocatory motion (FIG. 1 double arrow 17
  • each piston 4 supports a shaft 18 parallel with the oscillating shaft 1 and on which there freely rotates a roller 19.
  • This roller is controlled by one or more carns 20, 21, the rota- 7 tion of which is controlled by one or more shafts such as 22 and 23, parallel to the oscillating shaft 1. These cams cause the descent of the pistons 4 and of the guide bar 12 (arrow 24, FIG. I), while the springs 7 ensure the reascent of the coupling 4, 12 (arrow 25, FIG. 1).
  • FIGS. 2 to 9 There is illustrated in FIGS. 2 to 9, the particular case of knitting a velvet or plush in a double piece on a Raschel machine with two needle rows 26 and 27. Each of these needles has a hook 28 or 29 and a latch 30 or 31 of known type.
  • the guide bar 12 is in the upper position. It moves forward (FIG. 2, arrow 32) in order to describe the path of its oscillating movement.
  • the cams 20 and 21 each comprise a boss which remains outside the trajectory described by the rollers 19. Consequently, the cams remain stationary during this forwards movement of the guide bar 12 on the row of needles 26.
  • the pile thread 14 is thus brought forwards. It passes under the hook 28 of the needles 26 when the bar 12 describes its reciprocating movement (FIG. 1, arrow 17) under the action of the mechanism coupled to the lever 16.
  • the roller 19 of the pistons 4 thus passes under the cam 21, whose peak is at this moment inactive (FIG. 3).
  • the bar 12 thus remains in the upper position until the end of its oscillating movement which brings it in front of the needles 27 (FIG. 6).
  • the lever 16 controls the reciprocating movement of the bar 12, which passes the pile thread 14 under the hook 29 of the needles 27, i.e., above the latch 31.
  • the bar 12 draws back (FIG. 7, arrow 32) while the peak of the cam 21 begins to act on the roller 19 of the pistons 4 for lowering the guide bar 12 and pressing the pile thread 14 below the latches 31 (arrow 24, FIG. 8).
  • An apparatus for controlling the movement of a guide bar for the pile thread of a Rachael machine having mechanisms controlling the reciprocating movement and the oscillating movement, the apparatus comprising supports connected to the oscillating shaft, slides connected to the supports which slides are parallel to each other and perpendicular to the oscillating shaft, the slides each serving as a guide, a spring-loaded piston in each slide, a cam acting on each piston against the spring action, the cams being supported on rotary shafts parallel to the oscillating shaft and mounted on a stationary support on the machine, spaced bars supported by the pistons and their piston rods, the bars being parallel to the oscillating shaft and being displaceable by the pistons under the action of the cams and spring whilst maintaining their spacing, brackets slidable along the bars with a reciprocating motion, and a guide bar connected to the brackets and adapted to be coupled by a swivel connection to the mechanism for controlling the reciprocating movement.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US16883A 1969-03-06 1970-03-05 Guide bar control for knitting machines Expired - Lifetime US3651665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6906176A FR2036719A1 (enrdf_load_stackoverflow) 1969-03-06 1969-03-06

Publications (1)

Publication Number Publication Date
US3651665A true US3651665A (en) 1972-03-28

Family

ID=9030174

Family Applications (1)

Application Number Title Priority Date Filing Date
US16883A Expired - Lifetime US3651665A (en) 1969-03-06 1970-03-05 Guide bar control for knitting machines

Country Status (4)

Country Link
US (1) US3651665A (enrdf_load_stackoverflow)
JP (1) JPS4933703B1 (enrdf_load_stackoverflow)
DE (1) DE2010602A1 (enrdf_load_stackoverflow)
FR (1) FR2036719A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129006U (enrdf_load_stackoverflow) * 1974-03-29 1975-10-23
CH609390A5 (enrdf_load_stackoverflow) * 1976-03-05 1979-02-28 Sulzer Ag
US6289703B1 (en) 1998-10-26 2001-09-18 Liba Maschinenfabrik Gmbh Rashel machine with a stroke device for a guide bar assemblage
ITBS20060089A1 (it) * 2006-04-28 2007-10-29 Santoni & C Spa Dispositivo per agevolare l'infilatura di passette per macchine tessili lineari

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171271A (en) * 1961-12-22 1965-03-02 Haggar Mills Division Of I Zen Warp knitting
US3410113A (en) * 1966-04-06 1968-11-12 Rudolph G. Bassist Knitting machine having a chopper bar controlling mechanism
US3464236A (en) * 1968-01-31 1969-09-02 Bassist Rudolf G Knitting machine employing compensating motion for knitting effect thread
US3469419A (en) * 1966-10-13 1969-09-30 Karl Kohl Raschel knitting machine and method of operating the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171271A (en) * 1961-12-22 1965-03-02 Haggar Mills Division Of I Zen Warp knitting
US3410113A (en) * 1966-04-06 1968-11-12 Rudolph G. Bassist Knitting machine having a chopper bar controlling mechanism
US3469419A (en) * 1966-10-13 1969-09-30 Karl Kohl Raschel knitting machine and method of operating the same
US3464236A (en) * 1968-01-31 1969-09-02 Bassist Rudolf G Knitting machine employing compensating motion for knitting effect thread

Also Published As

Publication number Publication date
FR2036719A1 (enrdf_load_stackoverflow) 1970-12-31
DE2010602A1 (de) 1970-09-24
JPS4933703B1 (enrdf_load_stackoverflow) 1974-09-09

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