EP1367164B1 - Wirkmaschine, insbesondere Kettenwirkmaschine - Google Patents

Wirkmaschine, insbesondere Kettenwirkmaschine Download PDF

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Publication number
EP1367164B1
EP1367164B1 EP03011868A EP03011868A EP1367164B1 EP 1367164 B1 EP1367164 B1 EP 1367164B1 EP 03011868 A EP03011868 A EP 03011868A EP 03011868 A EP03011868 A EP 03011868A EP 1367164 B1 EP1367164 B1 EP 1367164B1
Authority
EP
European Patent Office
Prior art keywords
group
knitting machine
control system
machine according
iii
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
EP03011868A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1367164A2 (de
EP1367164A3 (de
Inventor
Herbert Lohr
Friedrich Gille
Jürgen Forkert
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
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 Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Publication of EP1367164A2 publication Critical patent/EP1367164A2/de
Publication of EP1367164A3 publication Critical patent/EP1367164A3/de
Application granted granted Critical
Publication of EP1367164B1 publication Critical patent/EP1367164B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D04B27/08—Driving devices therefor
    • 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
    • D04B27/26—Shogging devices therefor

Definitions

  • the invention relates to a knitting machine, in particular warp knitting machine, with a plurality of ingots carrying knitting tools, and a drive assembly for driving the ingot having a plurality of individual drives with controls, wherein the controls are divided into at least two groups, each having at least two controls ,
  • a knitting machine is in the EP-A-0600263 described in Figures 5 and 6.
  • the knitting tools In knitting machines, in particular warp knitting machines, a multiplicity of threads are processed simultaneously.
  • the knitting tools must be moved in a predetermined sequence of movements relative to each other.
  • the effect tools are, for example, knitting needles, slider boards, tee boards and guide needles.
  • the individual knitting tools are each arranged in groups of ingots, so that all knitting tools of a group perform a similar movement at a stroke of the machine. This also applies to so-called jacquard controls, where then for individual needles or groups of needles a countermovement is superimposed.
  • the movements of the bars can be very different. There are bars which are moved up and down or from front to back, while other bars, in particular the guide bars with the guide needles, are also moved from right to left, ie in the longitudinal extension of the machine. While the first type of movement can be realized via a main shaft which interacts with plungers or eccentrics, in the past, the reciprocating motion of the guide bars has been predominantly carried out by pattern wheels or pattern chains which, via a pattern gear, synchronously with the movement of the main shaft have been driven. These pattern discs or pattern chains press the guide bars against the force of a return spring in a predetermined direction, so that, synchronized with the movements of the other bars, the guide needles can perform a transverse movement.
  • this drive solution has the disadvantage that you can drive only a limited number of guide bars.
  • the pattern wheels or pattern chains need a certain width in order to be able to transmit the drive power at all. Accordingly, one can accommodate only a certain number of pattern discs or pattern chains side by side. This limits the number of thread guides that can be controlled independently.
  • the pattern variety is limited. With reasonable effort only patterns with a maximum length are possible. Changing a pattern is relatively expensive.
  • individual bars have each provided with individual drives.
  • These individual drives can be controlled by controllers.
  • the drives could be designed, for example, as linear drives, but also as rotary drives. With such drives, it is at least partially possible to increase the variety of patterns and to facilitate the exchange of patterns.
  • the invention has for its object to be able to increase the performance of the machine.
  • controls are divided into at least two groups, each having at least two controllers, of which one group is designed as a leader and the remaining at least one group as a successor group, wherein within each Group a controller as a pilot control and the remaining at least one controller is designed as a sequential control.
  • Hierachieebenen namely on the one hand, the level of the controls themselves, which are grouped together in groups.
  • a controller that has a guiding function and therefore is called a master controller or master controller
  • the sequential controls are relatively easy to synchronize with the master control in this way.
  • the second hierarchical level is the division into groups.
  • the groups there is a master, the guiding group, and one or more slaves, namely the following groups.
  • the transmission of the corresponding sync signals from the leading group to the follow-up group since it is a limited number of groups, also relatively easily possible.
  • the individual branches can then take place corresponding synchronization processes between the groups, so that the controls are not only in a group, but also the group are synchronized to each other.
  • the controls are arranged in the form of a matrix, wherein the matrix can be constructed in the simplest case 2-dimensional, ie with rows (controls in a group) and columns (groups among each other), but also 3- or more-dimensional.
  • the matrix can be constructed in the simplest case 2-dimensional, ie with rows (controls in a group) and columns (groups among each other), but also 3- or more-dimensional.
  • the drive arrangement has a main shaft provided with a main shaft, which drives at least one bar directly via a gear.
  • This bar then usually performs only one movement in a plane perpendicular to the offset direction of the yarn guide.
  • the transmission may be formed in the simplest case as a crank gear.
  • the main shaft encoder determines the rotational position of the main shaft. This is at the same time information about the position or position of those bars which are connected to the main shaft via the transmission. From this information, one can then directly or indirectly derive a signal that serves to synchronize all controls.
  • the main shaft encoder is connected to the master control of the guide group. So it is only necessary a single line between the main shaft encoder and the receiver, which receives the signal of the main shaft encoder. This is the lead control of the Guidance Group.
  • This master control of the guiding group then "distributes" the signal first to all other follow-up groups in whose control controls it arrives and can be further processed. The control systems of each individual group then forward the synchronization signal to the sequential controls.
  • the groups are connected together in a ring. This is a safeguard that allows reliable transmission of information.
  • the guide group is connected to the sequence groups via a group-message line, which is forwarded from sequence group to sequence group, wherein the last sequence group is connected via a group feedback line to the guide group.
  • a group-message line which is forwarded from sequence group to sequence group, wherein the last sequence group is connected via a group feedback line to the guide group.
  • the group reporting line forwards signals from the main shaft encoder with the highest priority occurring.
  • the signals from the main shaft encoder are the only signals necessary for the synchronization of the individual groups with each other. It is therefore sufficient to pass only these signals or these signals with the highest priority occurring. This keeps the cycle times for the communication between the individual groups short and allows a high level of security in the signal transmission.
  • the controls of a group are connected together in a ring. Basically, the same applies here as for the interconnection of the individual groups.
  • annular interconnection a high degree of security in the transmission of signals from the control to the sequential controls can be achieved.
  • the master control is connected to the sequential controls via a signaling line, which is forwarded by sequential control to sequential control, wherein the last sequence control is connected via a feedback line to the master control.
  • a signaling line which is forwarded by sequential control to sequential control
  • the last sequence control is connected via a feedback line to the master control.
  • a pattern controller is provided which is connected to each group.
  • the pattern control which may be formed, for example, as a pattern control device
  • the data are stored as to how the individual knitting tools should behave when forming a pattern.
  • the pattern control may include the sequence of steps that the guide needles make over the knitting needles (e.g., two needle pitches to the left, one needle pitch to the right, two pitch to the left, three pitch to the right, etc.).
  • This pattern control can be specified individually for each barre.
  • the pattern control usually contains a memory that can be reloaded if another pattern is to be cast. Thus, the change of the pattern is relatively easy.
  • each controller has a curve generator.
  • the curve generator determines from the data coming from the pattern control, the specific drive curve, ie accelerations in acceleration phases, delays in braking phases and in between stoppages or movement sections. The curve generator is then the element that ultimately controls the individual drive.
  • each drive is coupled back to its controller.
  • the controller thus monitors whether the drive has fulfilled the task assigned to it.
  • the control thus forms a control circuit with the drive.
  • a group has max. 16 controls on. This number is still manageable. If much more controls are to be provided, simply a correspondingly larger number of groups is used. However, an optimal configuration will cause the number of controls per group to be substantially the same.
  • more than 20 bars are provided with a corresponding number of drives.
  • the control of 20 individual drives is relatively complicated.
  • the double master-slave control via master control and sequential controls as well as a master group and follow-up groups the many drives can be safely controlled.
  • a warp knitting machine 1 has a working area 2, to which knitting needles 3 with sliders 4, a piercing comb 5 and a teetering comb 6 belong.
  • the knitted fabric 7 is removed via a take-off roller 8.
  • a guide bar 9 leads to basic threads, a guide bar 10 provides picot threads.
  • the guide bar 10 is followed by six bar supports 11-16, each containing four to twelve pattern laying bars in the form of laying bands.
  • On the ingot support 11-16 follow two jacquard guide bars 17, 18 and another guide bar 19 for staple threads.
  • the billets 11-16 are arranged in pairs and lie with their back walls together.
  • a main shaft 20 which control the tee comb 6 carrying bar 23 and the knitting bars 3 carrying the slide bar 24 via cams 21, 22. Between the bar 23 and the slide bar 24 and the cam 21, 22 can still be provided plunger 25, 26.
  • the main shaft 20 is connected via a crank mechanism 27 with the grooving bar 28, which carries the piercing comb 5.
  • the latter three bars 23, 24, 28 carry out movements parallel to the plane of the drawing, that is, based on the representation of FIG. 1 from bottom to top or from right to left or vice versa.
  • the billets 11-16, the jacquards 17, 18 and the bottom thread bars 9, 10, 19 move the needles attached to them 31 perpendicular to the plane of the drawing, based on the representation of FIG. 1.
  • a main shaft encoder 30 cooperates, which is shown only schematically.
  • the main shaft encoder 30 provides information about the rotational position of the main shaft 20 and thus about the current position of the Abzzikammes 6, the knitting needles 3 and the piercing comb 5.
  • the main shaft 20 so to speak forms the leading axis of the machine, as explained below, i. it specifies synchronous signals. But you can use instead of the main shaft 20 but also another guide axis, for example, if the main shaft for mechanical drive of the ingot is no longer needed. In this case, a clock can be used as a leading axis.
  • a bar 32 which carries the slide 4, may also be coupled in a manner not shown with the main shaft 20. But it is also possible to equip this Barre 32 with its own drive.
  • ground yarn bars 9, 10, 19 and the jacquard bars 17, 18 have drives with which these bars 9, 10, 17-19 are movable perpendicular to the plane of the drawing.
  • Each of these bars has a single drive, so that there are already five individual drives that need to be controlled.
  • Fig. 2 shows a schematic view of the billet carrier 11, with a plurality of groups 33, 34 of needles 35, which may also be referred to as a thread guide.
  • Corresponding thread guide 35 of each group 33, 34th are driven together, ie they can relative to a billet support 36 in an offset direction 37, which is characterized by a double arrow and in Fig. 1 perpendicular to the plane, are moved.
  • Not shown means may be present, with which the bar carrier 36 is also movable in the offset direction 37.
  • tension members 38 which are formed as wire or wire rope.
  • Each tension element is driven by means of a drive motor 39, wherein both ends of the tension element 38 are tensioned by means of tensioning devices 40, 41.
  • the tensioning element is guided over a deflection roller 42.
  • the clamping elements 40, 41 may be formed as a compressed air cylinder with the same cross-sectional area on which a pressure P acts.
  • the tension elements 38 are therefore loaded in both directions with the same force, so that the drive 39 only has to muster the necessary force to move the yarn guide 35. Alternatively, you can omit the clamping elements on one side.
  • the billet carrier 11 has eight tension members 38, each of which must be controlled individually. In the case of six bar carriers, 48 tension elements 38 must therefore be activated, so that a corresponding number of drives 39 must be controlled. Together with the drives of the bars 9, 10 and 17-19 so 53 drives must be controlled so that the individual guide needles 31, the yarn guide 35, the knitting needles 3, the slide 4, the piercing comb 5 and the Abzzikamm 6 are controlled so that they interact collision-free with each other.
  • a drive control 50 is provided, which is shown schematically in Fig. 3.
  • the individual drives 39 each interact with a controller 51.
  • the controller 51 has a sensor 52, which monitors the position of the drive 39 and reports back to the controller 51.
  • the controller 51 thus forms together with the drive 39 together a control loop.
  • controls 51 of the drives M are first summarized in groups, which is indicated by dashed lines.
  • the dashed lines delimit groups I-III.
  • groups I-III there is a controller 51M, which is characterized by a thick black frame and is designed as a master control or "master".
  • Each guidance controller 51M supplies, via a signaling line 53, the subsequent controllers 51S, which are referred to as sequence controllers or "slaves".
  • a feedback line 54 is provided, with which the last controller 51 of each group is connected to the guide controller 51M.
  • the individual groups are in turn almost in parallel, i. their master controls 51M are connected to each other via a group report line 55, with a group return line 56 being provided, which connects the master controller 51M of the last group III to the master controller 51M of the first group I.
  • the first group I is accordingly designed as a guiding group.
  • Groups II and III form follow-up groups.
  • the individual controls are thus arranged in the form of a matrix, wherein other arrangements are also possible.
  • the main shaft encoder 30 is connected only to the master control 51M of the master group I.
  • the information of the main shaft encoder 30, that is to say the leading axis information, is passed on via the group message line 55 to the pilot controls 51M of the sequence groups II, III, namely with the highest occurring priority. It is not necessary that another information is transmitted via the group message line 55. As long as the group message line 55 but is free, so not occupied by the priority in any case leading axis information, they can also be used for the transmission of auxiliary information.
  • the master control 51M of the master group I can be provided with a further input 58, via which control data of a general machine control can be transmitted, for example SPS data.
  • a pattern controller 60 is connected to all the pilot controls 51M.
  • the pattern controller 60 contains data about the pattern to be acted, i. the positions of the individual knitting tools after each cycle of the knitting machine.
  • the pattern control 60 contains the information as to how far the individual ingots 9, 10, and 17-19 or the ingot carriers 11-16 and the thread guides 35 contained therein have to be moved to the left or to the right at one stroke.
  • the pattern control may already contain the information about which of the groups I, II, III the corresponding controller 51M, 51S, 51 or the corresponding drive 39 is to be found, so that the pattern control 60 only the group I, II III outputs data to the corresponding guide controller 51M.
  • the guidance controller 51M forwards these corresponding data via the message line 53 to the corresponding sequential controls 51S.
  • Each controller includes a curve generator 61 which, from the data derived from the pattern controller 60, calculates the motion that the single bar or thread guide must perform to be able to realize the pattern deposited in the pattern controller 60.
  • the acceleration and deceleration behavior of the individual barre or the yarn guide with its tension elements plays a certain role, ie the curve generator 61 calculates acceleration and deceleration sections, Standstill sections and sections with constant speed and controls the individual drives 39 accordingly.
  • the entire drive control 50 exchanges their data in cycles.
  • the information from the main shaft encoder 30 can be sent to the master control 51M of the master group I.
  • this information is forwarded to the leading control 51M of the next sequence group II, and in the third clock, the information about the main wave information is forwarded to the leading control 51M of the next sequence group III.
  • each group or control must only identify the part of the telegram that is attributable to them and evaluate.
  • this information can be distributed in the group, i. they are forwarded by the guidance controller 51M to the sequential controls 51S, the information being passed on by a sequencer at every clock.
  • the pattern information can reach the individual control controllers 51M, which then forwards them to the individual sequential controls 51S in a cycle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP03011868A 2002-06-01 2003-05-27 Wirkmaschine, insbesondere Kettenwirkmaschine Expired - Lifetime EP1367164B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10224429 2002-06-01
DE10224429A DE10224429B4 (de) 2002-06-01 2002-06-01 Wirkmaschine, insbesondere Kettenwirkmaschine

Publications (3)

Publication Number Publication Date
EP1367164A2 EP1367164A2 (de) 2003-12-03
EP1367164A3 EP1367164A3 (de) 2004-09-29
EP1367164B1 true EP1367164B1 (de) 2007-09-05

Family

ID=29414299

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Application Number Title Priority Date Filing Date
EP03011868A Expired - Lifetime EP1367164B1 (de) 2002-06-01 2003-05-27 Wirkmaschine, insbesondere Kettenwirkmaschine

Country Status (7)

Country Link
EP (1) EP1367164B1 (zh)
JP (1) JP2004003099A (zh)
KR (1) KR100487913B1 (zh)
CN (1) CN1277970C (zh)
DE (2) DE10224429B4 (zh)
ES (1) ES2289211T3 (zh)
TW (1) TWI244518B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014811B1 (de) * 2007-07-07 2013-09-11 Karl Mayer Textilmaschinenfabrik GmbH Verfahren zum Betreiben einer Kettenwirkmaschine und Kettenwirkmaschine
CN104032477A (zh) * 2014-06-30 2014-09-10 常州市龙春针织机械科技有限公司 用于经编机的钢丝绳导轮
CN104294476B (zh) * 2014-10-22 2016-05-11 浙江越剑机械制造有限公司 一种高速经编机开停车智能控制系统及其控制方法
CN105671780A (zh) * 2016-04-01 2016-06-15 卡尔迈耶（中国）有限公司 经编机钢丝花梳精确定点归零装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238600C2 (de) * 1992-11-16 1996-09-26 Kaendler Maschinenbau Gmbh Elektronische Steuereinheit für Textilmaschinen, insbesondere für Wirkmaschinen
US6069465A (en) * 1997-10-31 2000-05-30 Hunter Douglas International N.V. Group control system for light regulating devices

Also Published As

Publication number Publication date
TW200307774A (en) 2003-12-16
TWI244518B (en) 2005-12-01
ES2289211T3 (es) 2008-02-01
CN1277970C (zh) 2006-10-04
EP1367164A2 (de) 2003-12-03
DE10224429A1 (de) 2003-12-18
CN1468994A (zh) 2004-01-21
KR100487913B1 (ko) 2005-05-04
DE50308096D1 (de) 2007-10-18
JP2004003099A (ja) 2004-01-08
KR20030093923A (ko) 2003-12-11
DE10224429B4 (de) 2007-11-29
EP1367164A3 (de) 2004-09-29

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