EP1354088A1 - Rundstrickmaschine - Google Patents

Rundstrickmaschine

Info

Publication number
EP1354088A1
EP1354088A1 EP01272604A EP01272604A EP1354088A1 EP 1354088 A1 EP1354088 A1 EP 1354088A1 EP 01272604 A EP01272604 A EP 01272604A EP 01272604 A EP01272604 A EP 01272604A EP 1354088 A1 EP1354088 A1 EP 1354088A1
Authority
EP
European Patent Office
Prior art keywords
cylinder bed
support
machine
needle dial
bed
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.)
Withdrawn
Application number
EP01272604A
Other languages
English (en)
French (fr)
Inventor
Frantisek Piskula
Jiri Zurek
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.)
Amtek Spol SRO
Original Assignee
Amtek Spol SRO
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 CZ20004933A external-priority patent/CZ291159B6/cs
Priority claimed from CZ20014566A external-priority patent/CZ299199B6/cs
Application filed by Amtek Spol SRO filed Critical Amtek Spol SRO
Publication of EP1354088A1 publication Critical patent/EP1354088A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B15/00Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind

Definitions

  • the invention relates to a circular knitting machine with a cylinder bed coaxially seated on a support of the cylinder bed which is in its turn seated on the machine bed surrounding the support of the cylinder bed in which the machine comprises means for centering the cylinder bed and, as the case may be, also the needle dial and/or another mechanism arranged over the cylinder bed and in which the cylinder bed or the cylinder and needle dials can be mounted into, and removed from, the machine by movements substantially normal to the machine axis.
  • Knitting machines with an exchangeable cylinder bed are well known to those skilled in the art. If the knitting machine comprises only one cylinder bed with no device such as for instance the striping device situated over the cylinder bed, the exchange of the cylinder bed, for instance for changing the gauge, is relatively simple. Much more complicated, however, is the situation in double bed machines in which the customary solution of the bed exchange requires an almost complete dismantling of the upper part of the machine.
  • the cited specifications describe an arrangement in which the knitting machine is equipped with a device permitting to lift the member situated over the cylinder bed, for instance the needle dial, to an extent sufficient to remove the cylinder bed, separately or in conjunction with its superposed member, by moving it normally to the axis.
  • the drawback of the solution consists in that the cylinder bed is as a rule seated with its lower edge in a step provided on the support of the cylinder bed so that it cannot be simply shifted out laterally
  • the patent specification DE 19653761 describes an arrangement in which the knitting machine is fitted with a device for setting the cylinder bed in axial direction, consisting for instance of assembly bars laid on the support of the cylinder bed on which the cylinder bed is laterally shifted in and out This permits the cylinder bed set in its assembly position to be shifted laterally
  • DE 195 33 844 C2 discloses an arrangement of the circular knitting machine with a cylinder bed coaxially mounted on the cylinder bed support mounted on the machine bed
  • the machine comprises an axle situated in the upper part of the machine on whose lower end, flange-like widened, a system of bolt connections holds the support of the needle dial which is mounted on the upper side of the outer circumference of the needle dial support
  • the machine is fitted also with means for adjusting the mutual position of the two beds
  • Each of the two beds is adapted to be shifted out of, and into, the machine by movements substantially normal to the machine axis
  • the axle together with the needle dial support is sunk to its lower position in which the needle dial contacts the upper side of the cylinder bed and the connection of the lower end of the axle with the needle dial support is loosened
  • there are two ways of handling the configuration needle dial - needle dial support - cylinder bed In the first variant, a handling means is attached to the machine, the connection between the needle dial and the needle dial support is loosened, the
  • the needle dial support together with the needle dial remains on the upper side of the cylinder bed, the whole system moves to its dismantling position on the guide rails mounted on the upper side of the machine bed and then gets out of the machine by moving in a direction normal to the vertical machine axis.
  • the drawback of the solution consists in that for the dismantling of the connection of the needle dial with the axle and, as the case may be, of the connection of the needle dial support with the needle dial, a considerable number of bolts has to be loosened in a relatively limited room, which requires much toil and time.
  • Another drawback of the solution consists in that the cylinder bed always must be set to its dismantling position on the guide rails mounted on the upper surface of the machine bed since only then the cylinder bed can be moved from the machine by a lateral movement.
  • the invention intends to remove or at least to minimize the described drawbacks of the known solutions and to permit a simple dismantling and reassembly of the cylinder bed and, as the case may be, of the needle dial without the necessity of lifting the cylinder bed by means of special devices.
  • a quick and simple bed exchange depends directly on quick and exact adjustment of the mutual geometric positions of the machine parts which is also solved by the invention.
  • the goal of the invention has been reached by a circular knitting machine whose principle consists in that the cylinder bed support carries removable and/or slidable positioning means reaching over the bearing surface for the cylinder bed on the support, the positioning means being removable and/or slidable below the level of the bearing surface for the cylinder bed on the support, and the bearing surface for the cylinder bed on the support being made void of steps and lugs obstructing the lateral displacement of the cylinder bed in the direction substantially normal to the machine axis.
  • the cylinder bed is after the dismantling/removal of the positioning means and/or after their displacement below the level of the lower side of the bearing surface on the cylinder bed support free to move into, and out of, the machine in the direction substantially normal to the machine axis.
  • the axle Above the level of the lowest place of the configuration, the axle is at the lower end of the bushing divided into an upper and a lower part, and the needle dial support is mounted on an upwards oriented surface on the lower part of the axle whose upper part protrudes above the level of the needle dial and of its support and is fixed to the lower end of the upper part of the axle.
  • the cylinder bed on the support and/or the needle dial on the support and/or the bearing flange of the needle dial cams at the lower end of the bushing are fixed by a system of screws/bolts substantially parallel with the machine axis, situated in a coaxial hole in the adjusting screws for setting the position and perpendicularity of the cylinder bed and/or of the needle dial and/or of the support flange of the dish shaped needle cams.
  • the needle dial support situated over the cylinder bed is preferably mounted on an upwards oriented surface on the lower part of the divided axle whose upper part, seated in a bushing, is free to turn around the machine axis while the plane of division of the axle lies above the level of the lowest place/point of the configuration at the lower bushing end, and the upper end of the lower part of the axle protrudes (reaches) above the level of the needle dial and of its support
  • a bearing flange equipped on its circumference with a step and/or with a bearing surface for the dish shaped needle cams, and the diameter of this step and/or bearing surface corresponds with the gauge of the needle dial and
  • Fig. 1 is a cross section through a double bed circular knitting machine with a machine bed, a cylinder bed, and a needle dial and their seating
  • Fig. 1 a is a cross section through a double bed circular knitting machine with a machine bed, a cylinder bed and a needle dial and with a seating of the needle dial different from that of Fig. 1
  • Fig. 2 is a cross section through the cylinder bed support and through the cylinder bed with positioning means situated on the cylinder bed support and with centering means situated on the cylinder bed
  • Fig. 1 is a cross section through a double bed circular knitting machine with a machine bed, a cylinder bed and a needle dial and with a seating of the needle dial different from that of Fig. 1
  • Fig. 2 is a cross section through the cylinder bed support and through the cylinder bed with positioning means situated on the cylinder bed support and with centering means situated on the cylinder bed
  • Fig. 1 is a cross section through a double bed circular knitting machine with a machine
  • FIG. 2a is a view from above on the upper side of the cylinder bed support with positioning means shaped as a packing piece and with a fixing and adjusting screw for the cylinder bed
  • Fig. 3 is a cross section through the cylinder bed support with positioning means situated on the cylinder bed support and with centering means situated on the positioning means
  • Fig. 4 is a cross section through the cylinder bed support with the cylinder bed, with fixing and adjusting screws and with an adjusting member
  • Fig. 5 is a cross section through the needle dial carrier with the needle dial of Fig. 1 , with fixing and adjusting screws, with an adjusting member, with needle dial cams and with their fixation.
  • the circular knitting machine shown as an example of embodiment in Fig 1 has a substantially vertical axis 6 On the machine bed 1_ is coaxially with the axis 6 arranged a support 2 of a cylinder bed 3 with a coaxially mounted cylinder bed 3
  • the support 2 of the cylinder bed 3 rotates in a bearing 25 and is driven by means of a toothed ring 26
  • a support 4 of cylinder needle cams 5 is mounted on the machine bed 1 coaxially with the cylinder bed 3 and with the machine axis 6
  • the coaxial position of the cylinder bed 3 on the support 2 of the cylinder bed 3 is maintained by positioning means
  • the cylinder bed 3 is fixed to the support 2 by means of attachment screws 21 , see Fig 4, and its position and orthogonality are adjusted by means of adjusting screws 22 actuated by rotation by means of adjusting members 23
  • the cylinder bed 3 is with its bottom surface mounted on the upper surfaces of the adjusting screws 22 by whose turning the height position of the cylinder bed 3 at the respective place can be adjusted
  • the adjustment member 23 fitted for instance with a hexagon for an adjustment wrench is situated under the head of the attachment screw 2 .
  • the adjusting member 23 is fitted with a coupling shaped for instance as a lug and inserted into a groove provided on the lower side of the adjusting screw
  • the coupling transmits the torque and permits to turn the adjusting screw 22
  • the coupling has a play by means of which even with the attachment screw 21 fully screwed in an axial play between the adjusting screw 22 and the adjusting member 23 remains maintained, the play in the threads of the adjusting screw 22 and of the attachment screw 2J. is defined, and the adjusting member 23 is firmly pressed onto the support 2 of the cylinder bed 3 and thus protects it from getting loose and changing its adjustment during the machine operation
  • upper struts 7 on whose upper end there is seated an upper box 8 which is the chief supporting member of the upper part of the machine
  • the upper box 8 is fitted with a throat 9 carrying a bushing 10 slidably seated therein and fitted on its upper end with a thread on which there is screwed a toothed setting nut 14 fitted on its outer circumference with a gearing 14b meshing with a pinion 15 adapted to be turned by a wrench fitted to a setting member 16 situated on the lower side of the pinion 15.
  • a rolling-contact bearing 14a Arranged between the lower side of the toothed setting nut 14 and the upper side of the throat 9 is a rolling-contact bearing 14a permitting easily to turn the toothed setting nut 14 that carries a considerable load exerted by the machine parts connected with the bushing
  • axle 11_ carrying on its upper end a gear wheel 12 connected by means of a pinion 29, a shaft 28, and a pinion 27 with a toothed ring 26 of the support 2 of the cylinder bed 3.
  • a support 18 of a needle dial 9 is mounted to the lower end of the axle 11. by means of attachment screws 24 and of not represented pins, or also by other means locking against the change of the angular position.
  • the upper part 11b of the divided axle H is rotatably mounted inside the bushing 10 on the bearings 13 while the lower part 11a of the axle 11. is fixed to the upper part 11b of the axle 11. by means of at least one attachment screw 24 parallel or coaxial with the axis 6 of the machine and, as the case may be, also by means of not represented pins or other well-known means preventing them from changing their mutual angular position.
  • the plane of division of the axle H lies above the level of the lowest point of the configuration at/on the lower end of the bushing to, and the lower part 11a of the axle JM reaches with its upper end above the level of the needle dial 19 and of its support 18.
  • the support 18 of the needle dial H is fixed to an upwards oriented surface provided on the lower part 11a of the axle 11.
  • the attachment screw or screws 24 is/are preferably used also for sinking the support 8 to the dismantling/removal position on the upper side of the cylinder bed 3; for this reason, the attachment screw/screws 24 is/are preferably screwed into the axle 1_1 or, more exactly, into its upper part 11b, by a length superior to the distance between the operative position of the support 18 of the needle dial 19 and the dismantling/removal position of the support 1_8 of the needle dial 1_9 on the cylinder bed 3.
  • the needle dial 19 is on the support 18 mounted analogically to the cylinder bed 3 on the support 2 of the cylinder bed 3, i.e., by means of attachment screws 21, adjustment screws 22, and adjustment members 23
  • the lower end of the bushing 10 carries a radially arranged flange 10a having mounted thereto from below a supporting flange 36 carrying dish shaped needle cams 17.
  • a not shown machine drive is connected to the lower end of a shaft 28 whose rotary motion is by means of pinions 27 and 29 and by means of machine parts connected with them transformed into a synchronized movement imparted to the cylinder bed 3 and to the needle dial 19.
  • Each of the two beds 3 and 19 carries in a well known manner knitting means, as a rule needles, controlled by needle cam systems consisting of cylinder needle cams 5 and 17 related to the beds 3 and 19 respectively.
  • the knitting means controlled by needle cam systems transform the threads led by a well-known supply system in a well-known manner into knitted fabric.
  • This adjustment is used in particular for adjusting the length of the stitch/loop of the knitted fabric by adjusting the mutual axial position of the needle dial 1_9 and of the cylinder bed 3
  • the raising of the bushing 10 is used also for increasing free space for easy lateral shifting out of the two beds 3, 19 during their removal
  • the packing pieces 20 get loosened and can be shifted to the dismantling/removal position under the lower edge of the cylinder bed 3, i e , below the level of the bearing surface for the cylinder bed 3 on the support 2 which is made without step and lugs obstructing the lateral removal of the cylinder bed 3 so that the cylinder bed 3, once the positioning means have been set to their dismantling/removal position, can be simply shifted out laterally without the need to lift it or to set it to a particular dismantling/removal position, for instance by means of adjusting members
  • the lower edge of the cylinder bed 3 lies on the bearing surface for the cylinder bed 3 on the support 2
  • On the inner cylindrical surface of the support 2 are by means of the screws 31 fixed positioning means shaped as packing pieces 20 against which lean in the operative position centering means 30 made preferably as screws serving to adjust the coaxiality of the cylinder bed 3
  • the attachment screws 2J. of the cylinder bed 3 and the screws 3_1 get loosened and the packing pieces 20 are then shifted below the level of the bearing surface for the cylinder bed 3 on the support 2 of the cylinder bed 3, the cylinder needle cams 5 are removed, and the cylinder bed 3 is freely shifted laterally out of the machine
  • FIG. 1 The view from above of the upper edge of the support 2 of the cylinder bed 3 with the bearing surface for the cylinder bed 3 on the support 2 in the embodiment of Fig 2, shown in Fig 2a, shows the mutual arrangement of the positioning means made as a shiftable packing piece 20, attachment screws 21 of the cylinder bed 3, adjusting screws 22, and adjusting members 23
  • FIG. 3 shows another preferred arrangement in which the centering means 30 are made as screws situated on the upper part of the positioning means arranged analogically to the example of embodiment shown in Fig 2
  • the position of the cylinder bed 3 in the machine is adjusted exactly so as to ensure that the knitting surface 300 of the cylinder bed 3 is normal to the axis 6 of the machine and is set exactly in its operative position
  • this preferred embodiment of the invention uses the adjusting screw 22 situated coaxially on the attachment screw 2J_ and supported by the adjusting member 23
  • the example of embodiment shown in Fig 5 shows a detail of a vertical cross section of the fixing of the needle dial 19 on the support 18 of the needle dial 1_9 according to Fig 1 , and a detail of the vertical cross section through the needle cam system of the needle dial 19
  • the configuration consisting of the adjusting screw 22, the adjusting member 23, and the attachment screw 21_ is used to adjust the position of the needle dial 19 and to fix it on the lower end of the bushing 10
  • the attachment screws are arranged in two coaxial circles which
  • the arrangement of the support 2 of the cylinder bed and of the positioning means can be advantageously used also in single bed knitting machines where the place of the needle dial 1_6 can be occupied for instance by a not represented striping device or by a system supplying threads of the knitting system, etc
  • the sequence of steps resulting in a state permitting freely to remove laterally the two beds 3 19 is as follows The turning of the pinion 1_5 meshing with the toothed setting nut 14, carried out by means of the setting member 16, sinks the bushing 1_0 to its lower position, or the attachment screws 24 are gradually loosened Each of these steps sets the needle dial 19 with its support 1_8 via packing pieces already inserted on the upper part of the cylinder bed 3 The attachment screws 24 are then completely unscrewed, and the support 18 with the needle dial 19, in the embodiment of Fig 1a together with the lower part 11a of the axle H,
  • the attachment screw 24 is either only one central screw, or they are only few due to the small diameter of the axle H In the embodiment of Fig 1 follows either the lifting of the bushing 10 with all the members situated in or on it, or the unscrewing of the support 18 from the needle dial 19 and the sinking of the support in the well-known manner through the middle of

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP01272604A 2000-12-29 2001-12-19 Rundstrickmaschine Withdrawn EP1354088A1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CZ20004933 2000-12-29
CZ20004933A CZ291159B6 (cs) 2000-12-29 2000-12-29 Okrouhlý pletací stroj
CZ20014566 2001-12-18
CZ20014566A CZ299199B6 (cs) 2001-12-18 2001-12-18 Okrouhlý pletací stroj
PCT/CZ2001/000078 WO2002053817A1 (en) 2000-12-29 2001-12-19 Circular knitting machine

Publications (1)

Publication Number Publication Date
EP1354088A1 true EP1354088A1 (de) 2003-10-22

Family

ID=25746956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01272604A Withdrawn EP1354088A1 (de) 2000-12-29 2001-12-19 Rundstrickmaschine

Country Status (3)

Country Link
EP (1) EP1354088A1 (de)
TW (1) TW584683B (de)
WO (1) WO2002053817A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021548A1 (de) 2008-04-25 2009-10-29 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine mit einer drehbar gelagerten Rippscheibe
CN101812767A (zh) * 2010-03-04 2010-08-25 谢文彬 针织大圆机的两用型针筒
CN103361873A (zh) * 2012-04-01 2013-10-23 丁国富 单面针织小圆机
CN103710829B (zh) * 2013-12-27 2016-05-18 上海针织九厂 一种单双面编织的圆编织机
CN105734807A (zh) * 2016-04-29 2016-07-06 厦门兴全龙机械有限公司 一种易于调节上针筒和上盘三角间隙的圆盘针织机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578661A (en) * 1978-01-17 1980-11-05 Stibbe Ltd Circular knitting machines
JP2681696B2 (ja) * 1989-08-18 1997-11-26 株式会社福原精機製作所 丸編機
DE19533844C2 (de) * 1995-09-13 2000-10-05 Terrot Strickmaschinen Gmbh Rundstrickmaschine
DE19653761B4 (de) * 1996-12-20 2004-09-16 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Rundstrickmaschine mit auswechselbarem Nadelträger, z. B. Nadelzylinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02053817A1 *

Also Published As

Publication number Publication date
TW584683B (en) 2004-04-21
WO2002053817A1 (en) 2002-07-11

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