US3633386A - Pulling and knocking-over device for two needle bed knitting machines - Google Patents

Pulling and knocking-over device for two needle bed knitting machines Download PDF

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Publication number
US3633386A
US3633386A US6480A US3633386DA US3633386A US 3633386 A US3633386 A US 3633386A US 6480 A US6480 A US 6480A US 3633386D A US3633386D A US 3633386DA US 3633386 A US3633386 A US 3633386A
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US
United States
Prior art keywords
knocking
pulling
comb
over
over member
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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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US6480A
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English (en)
Inventor
Karel Bernard Marie Bruelemans
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.)
FN Herstal SA
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FN Herstal SA
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Filing date
Publication date
Application filed by FN Herstal SA filed Critical FN Herstal SA
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Publication of US3633386A publication Critical patent/US3633386A/en
Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products
    • D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines

Definitions

  • This invention relates to a pulling and knocking-over device for two needle bed knitting machines such as, e.g., machines for knitting rib borders and the like.
  • An important object of the invention is to provide a device ensuring not only a suitable pulling upon the knitted goods, but allowing also an automatic release of the pulling comb for knitting, this being particularly useful when the machine is provided with a device for automatically transferring, e.g., rib borders.
  • a pulling and knocking-over device comprising substantially a pulling comb vertically moving between the needle beds, it being also possible to impart a rotating movement to said member in addition to the traversing movement.
  • said pulling comb and said knocking-over member are mounted on supports sliding about vertical axes, said supports being driven from a common motor through a pulling shaft and a knocking-over shaft, it being possible to interconnect momentarily said shafts.
  • FIG. 1 is a diagrammatic vertical section of a knitting machine'provided with the device according to the invention
  • FIGS. 2 and 3 show respectively the pulling comb and the knocking-over member
  • FIG. 4 shows the driving mechanism for the pulling and knocking-over device according to the invention
  • FIG. 5 is a view according to the arrow F5 ofFIG. 4;
  • FIGS. 6, 7 and 3 show respectively the pulling and knocking-over device in three characteristic positions.
  • the machine represented on FIG. 1 comprises a frame 1 carrying two inclined needle beds 2 and 3. Between said needle beds, may be inserted a pulling comb 4 fastened on a support 5 sliding along a guiding axis 6. Said support 5 may be driven upwardly or downwardly from a pulling shaft 7 through the intermediary of an endless chain 8 fastened at 9 to the said support, said chain passing about a pinion 10 keyed on the shaft 7 and the reversing pulley 11 with tightener 12.
  • the knocking-over member 13 is mounted on a profiled support 14 which is itself pivoted in 15 on a sliding support 16 which may be shifted along the guiding axis 6.
  • the support 16 may be driven upwardly or downwardly from a knocking-over shaft 17 through the intermediary of an endless chain 18 passing about pinion 19 keyed on the shaft 17 and about the reversing pulley 20 with tightener 21.
  • the device is driven through a motor 22 the output shaft 23 of which is provided with a pinion 24 driving an endless chain 25 which rotates a toothed wheel 26 mounted on the pulley shaft 7.
  • the wheel 26 may be integral with said shaft through the intermediary of a magnetic clutch 27.
  • a wheel 32 On the shaft 7, is keyed a wheel 32 driving, through the chain 33, a wheel 34 mounted freely on a camshaft 35 with which it may be however made integral by means of the magnetic clutch 36.
  • the shaft 7 comprises also a ratchet wheel 37 which'may be made integral with shaft 7 through the intermediary of an electromagnetic clutch 38.
  • the camshaft 35 carries a disc having three distinct profiled tracks which may each actuate one of the microswitches 4647 and 48.
  • a cam disc 49 provided on shaft 17 may also actuate n microswitch 50.
  • a second camshaft 51 carrying earns 52 and 53 allows the actuation ofmicroswitches 54 and 55 respectively.
  • the knocking-over member When the knocking-over member has reached its uppermost position, it is locked under the action of the pawl 42 so that it may not fall again when the clutch is disengaged. Simultaneously, the clutch 31 is disengaged by actuating the microswitch 50, whereas the clutch 38 is engaged. In this way, the comb 4 raises alone, before the knocking-over member 13 and engages between the needle beds 2 and 3. When the comb 4 has reached its upper position, it is locked under the action of pawl 41 controlled by the electromagnet 43 thereof, whereas motor 22 is stopped under the action of the microswitch 46, the clutch 27 being disengaged. At that time, only the clutch 36 is still engaged.
  • step by step pulling movement is imparted to the comb 4 from the ratchet wheel 37 of the pulling shaft 7.
  • the pulling action may be introduced or cancelled by suitably actuating the clutch 38.
  • the control of the latter comes from the programming device of the machine.
  • the electromagnet 43 of pawl 41 is energized to allow the rotation of the camshaft 35.
  • the pawl 41 is removed, while the pulling shaft 7 to which a slight angular movement is imparted, rotates the toothed wheel 34. Since the clutch 36 is engaged, the camshaft rotates, thereby lowering the comb 4 sufficiently to tighten the first loop course.
  • the pulling action is immediately interrupted by actuating clutch 38. After having knitted the second loop course, the pulling action is reintroduced and is maintained during the knitting of all the subsequent loop courses. Then, only the comb 4 is lowered. This movement of the comb only continues until the desired lead of the comb on the knocking-over member is reached. In fact, this lead represents the distance necessary to allow the disconnection.
  • the clutch 31 is engaged by the microswitch 47, whereas the electromag net 44 of pawl 42 is energized to remove pawl 42.
  • the knocking-over member may be then lowered together with the comb until a knitting to the desired length is reached.
  • the comb 4 occupies a lead X relating to the knocking-over member 13 (FIG. 6). Since said member 13 is actuated towards the knitted goods by a spring (not shown for clarity of drawing), it will push back said knitted goods as soon as the pulling action of the comb 4 ceases. For this purpose, a pulse is given from "the camshaft 51, thereby driving motor 22 for a given time, the clutches 38 and 31 being disengaged, while the clutch 27 is engaged, the clutch 36 being itself still engaged.
  • the comb 4 being raised to be only at a distance x from the knocking-over member (FIG. 7), the latter pushes back the knitted goods which are thereby removed from the hooks of comb 4.
  • control signals determining the operational sequence of the device are given, on one hand, from the conventional programming mechanism of the machine and, on the other hand, through two camshafts actuating a series of microswitches.
  • a device wherein, during the pulling phase, the pulling comb is moved in lead on the knocking-over member, means being provided to reduce said lead when disconnecting.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
US6480A 1969-02-07 1970-01-28 Pulling and knocking-over device for two needle bed knitting machines Expired - Lifetime US3633386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE728050 1969-02-07

Publications (1)

Publication Number Publication Date
US3633386A true US3633386A (en) 1972-01-11

Family

ID=3854242

Family Applications (1)

Application Number Title Priority Date Filing Date
US6480A Expired - Lifetime US3633386A (en) 1969-02-07 1970-01-28 Pulling and knocking-over device for two needle bed knitting machines

Country Status (4)

Country Link
US (1) US3633386A (enrdf_load_stackoverflow)
JP (1) JPS4930025B1 (enrdf_load_stackoverflow)
BE (1) BE728050A (enrdf_load_stackoverflow)
GB (1) GB1285821A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488416A (en) * 1982-04-15 1984-12-18 Shima Idea Center Co. Ltd. Set-up means in a flat knitting machine
EP1122349A3 (en) * 2000-02-01 2002-05-08 Matec S.p.A. Device and method for adjusting hosiery tension in circular textile machines
CN111910333A (zh) * 2020-08-03 2020-11-10 浙江丰帆数控机械有限公司 一种用于针织横机的牵拉装置及针织横机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62212197A (ja) * 1986-03-13 1987-09-18 大日本印刷株式会社 巻封冊子類
JPH05309974A (ja) * 1992-05-11 1993-11-22 Shimamura Seihon Kojo:Kk 製本方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690167A (en) * 1948-10-09 1953-04-15 Dubied & Cie Sa E Improvements in or relating to fabric take-up means in straight-bar knitting machines
GB958075A (en) * 1961-11-15 1964-05-13 Monk Sutton In Ashfield Ltd Sa Improvements in fabric take-up apparatus for flat bed knitting machines
GB968001A (en) * 1960-12-12 1964-08-26 Heinrich Stoll Improved draw-down mechanism for a flat knitting machine
GB991975A (en) * 1961-08-11 1965-05-12 Schieber Universal Maschf Drawing-off mechanism for a double bed flat knitting machine
US3250094A (en) * 1963-09-06 1966-05-10 Monk Sutton In Ashfield Ltd Sa Method and apparatus for applying tension to workpieces produced on flat bed fully-fashioned knitting machines
US3375683A (en) * 1964-03-24 1968-04-02 Dubied & Cie Sa E Fabric drawing-off device for flat knitting machines
US3376710A (en) * 1966-05-16 1968-04-09 Hirtensteiner Walter Earl Food freezing apparatus
FR1526491A (fr) * 1967-06-08 1968-05-24 Manta Dispositif de traction de tricot pour machines à tricoter rectilignes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690167A (en) * 1948-10-09 1953-04-15 Dubied & Cie Sa E Improvements in or relating to fabric take-up means in straight-bar knitting machines
GB968001A (en) * 1960-12-12 1964-08-26 Heinrich Stoll Improved draw-down mechanism for a flat knitting machine
GB991975A (en) * 1961-08-11 1965-05-12 Schieber Universal Maschf Drawing-off mechanism for a double bed flat knitting machine
GB958075A (en) * 1961-11-15 1964-05-13 Monk Sutton In Ashfield Ltd Sa Improvements in fabric take-up apparatus for flat bed knitting machines
US3250094A (en) * 1963-09-06 1966-05-10 Monk Sutton In Ashfield Ltd Sa Method and apparatus for applying tension to workpieces produced on flat bed fully-fashioned knitting machines
US3375683A (en) * 1964-03-24 1968-04-02 Dubied & Cie Sa E Fabric drawing-off device for flat knitting machines
US3376710A (en) * 1966-05-16 1968-04-09 Hirtensteiner Walter Earl Food freezing apparatus
FR1526491A (fr) * 1967-06-08 1968-05-24 Manta Dispositif de traction de tricot pour machines à tricoter rectilignes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488416A (en) * 1982-04-15 1984-12-18 Shima Idea Center Co. Ltd. Set-up means in a flat knitting machine
EP1122349A3 (en) * 2000-02-01 2002-05-08 Matec S.p.A. Device and method for adjusting hosiery tension in circular textile machines
CN111910333A (zh) * 2020-08-03 2020-11-10 浙江丰帆数控机械有限公司 一种用于针织横机的牵拉装置及针织横机

Also Published As

Publication number Publication date
JPS4930025B1 (enrdf_load_stackoverflow) 1974-08-09
GB1285821A (en) 1972-08-16
BE728050A (enrdf_load_stackoverflow) 1969-08-07

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