CN1468994A

CN1468994A - Knitting frame, especially tricot machine

Info

Publication number: CN1468994A
Application number: CNA031382932A
Authority: CN
Inventors: H・洛尔; H·洛尔; 硕特; F·吉勒; J·福克尔特
Original assignee: Karl Mayer Textilmaschinenfabrik GmbH
Current assignee: Karl Mayer Textilmaschinenfabrik GmbH
Priority date: 2002-06-01
Filing date: 2003-05-30
Publication date: 2004-01-21
Anticipated expiration: 2023-05-30
Also published as: DE50308096D1; EP1367164A2; JP2004003099A; TWI244518B; KR100487913B1; ES2289211T3; EP1367164B1; DE10224429A1; CN1277970C; KR20030093923A; DE10224429B4; TW200307774A; EP1367164A3

Abstract

The knitting machine equipped with many bars loading a knitting tool and a drive-controlling device for driving the bars, wherein the drive-controlling device having the multiple number of driving devices equipped with controlling devices is provided by dividing the controlling devices into at least 2 groups each of which has at least 2 controlling devices. Among them, one group is constituted as a main group, and at least one of the rest of the groups as a subordinating group, and also one controlling device is set as a main controlling device, and at least one controlling device of the rest as a subordinating group.

Description

Knitting machine and especially warp knitting machine

Technical field

The present invention relates to knitting machine and especially warp knitting machine, it has some sley bars that loop-forming element is housed and a drive unit that is used to drive sley bar, and this drive unit has a plurality of independent driving mechanisms that have control device.

Background technology

In knitting machine and especially warp knitting machine, handle many yarns simultaneously.For this reason, loop-forming element must move relative to each other with a predetermined motion sequence.Loop-forming element for example is crochet hook, slip pusher jack, knocking-over sinker and sley point.These independent loop-forming elements are arranged on the sley bar separately in groups, thereby make all loop-forming elements in a group carry out same motion in a work rhythm of machine.This also is applicable to so-called jacquard control, and wherein concerning single pin or pin group, a counter motion superposes.

The sley bar motion has a great difference.Some sley bars are arranged, and they move back and forth or by moving behind the forward direction, and other sley bars especially have the also motion from right to left of sley bar of sley point, in other words, machine vertically on motion.Although first kind of motion can realize with push rod or the coefficient main shaft of eccentric wheel by one, but the past, moving back and forth of sley bar mainly is to use pattern disc or pattern chain, they through the synchronized movement of a jacquard weave transmission device and main shaft be driven.The power that these pattern discs or pattern chain overcome a backspring is pressed to sley bar along predetermined direction, thereby realizes the synchronized movement of other sley bar of transverse movement with making sley point.But the shortcoming of this drive scheme is, can only drive a limited number of sley bars.Pattern disc or pattern chain need certain width, so that can transmit driving power fully.Correspondingly, can only the be arranged side by side pattern disc or the pattern chain of some.This has limited the quantity of the thread-carrier that can control independently of each other.In addition, also limited pattern diversity.Use rational expense, can only obtain the pattern of maximum length.It is more bothersome to change pattern.

Thereby, in recent years, independent driving mechanism is set for independent sley bar respectively.These independent driving mechanisms can be controlled by control device.These driving mechanisms for example can be designed to linear driving mechanism, but also can be designed to rotary driving mechanism.By these driving mechanisms, can increase pattern diversity and simplified pattern at least in part and change.

But such problem occurs, i.e. the motion of independent sley bar must be coordinated exactly mutually, collides mutually to avoid loop-forming element.As a result, must make independent driving mechanism, more precisely its control device is wanted the phase mutually synchronization.More after a little while, generally there is not any problem synchronously at driving mechanism.But for driving mechanism more if any ten when above, difficulty relatively just synchronously, this also may owing to machine between the driving mechanism or control device between the machine run time effects.

Summary of the invention

Task of the present invention is to improve the production capacity of machine.

In the knitting machine of the described type of beginning, so finish this task, be at least two groups that control device is subdivided into respectively at least two control device, wherein one group is designed to leading group, remaining at least one group is designed to the servo-actuated group, wherein in every group, a control device is designed to leading control device, and at least one remaining control device is designed to Servocontrol device.

By this embodiment, can operate a plurality of control device synchronously with one another.Here, people have made full use of at least two classification aspects, it promptly on the one hand is the aspect of the control device that makes up in groups separately, a control device is arranged in such group, therefore it has leading function and is called as leading control device or master control set, and remaining control device is followed this leading control device and thereby is called as Servocontrol device or from dynamic control device.So, make Servocontrol device and leading control device synchronous fairly simplely.On the other hand, can make the control device of some weave into one group, thereby make when continue transmitting synchronizing signal issuable influence running time or other problem time lag no longer play an important role.The second classification aspect has constituted segmentation in the group.It is the servo-actuated group that the promptly leading group of an active person and one or more driven person are also arranged in these groups.Now, can make the servo-actuated group synchronous with leading group.Because the limited amount of group also is than more smoothly so the corresponding synchronous signal continues to be transferred to the servo-actuated group from leading group.Thereby, formed a kind of tree, these independently thick branches wherein, i.e. these groups can receive the signal of respective synchronization.In these independently thick branches, may occur in the respective synchronization process between these groups, thereby make these control device, and these organize also phase mutually synchronization not only in the inter-sync of a group.In other words, these control device are arranged to matrix form, and wherein matrix is a bidimensional under the simplest situation, promptly have row (control device in a group) that row (group each other) are arranged, but also can be three-dimensional or multidimensional.For example, also can consider starlike arrangement form, it has brought described advantage.

Drive unit preferably has the main shaft of a band main shaft sensor, and it is directly driven to few sley bar through a transmission device.So this sley bar is general only to move in a plane perpendicular to the thread-carrier direction of displacement.Under the simplest situation, transmission device can become the toggle form.Main shaft sensor measurement main axis rotation position.This be simultaneously one about the state of those sley bars that link to each other with main shaft through transmission devices or the information of position.According to these information, can extrapolate a signal directly or indirectly, it is synchronous that this signal is used for all controlling organizations.

Here, the main shaft sensor preferably links to each other with the leading control device of leading group.That is to say, between the receiver of main shaft sensor and reception main shaft sensor signal, only need a unique lead.This is the leading control device of leading group.So, the leading control device of leading group signal at first " distributions " give all other servo-actuated group, signal arrives the leading control device of servo-actuated group and can be continued processing.The leading control device of each independent groups continues synchronizing signal is passed to Servocontrol device.If for example there are five respectively to have the group of eight driving mechanisms and people periodically to transmit synchronizing signal, then before reaching last Servocontrol device, need 11 circulations, i.e. four circulations be used to arrive the 5th group and there seven circulations be used to arrive eight Servocontrol devices, these are different with 39 circulations, and are required when these 39 circulations are all control device series connection.Consider similarly to be that though all Servocontrol devices simultaneously or almost simultaneously obtain information, whole information must be come analyzing and processing according to section, described section is exactly information itself.According to the present invention, there be short " telegram " just enough.Like this, can increase the information content that to transmit and maybe can prolong circulation timei, thereby make sley bar have other motion.

These groups preferably interconnect circlewise.This is a safety measure that can realize the information reliable delivery.

Particularly preferably be at this, leading group links to each other through a group signal conductor with the servo-actuated group, and this group signal conductor continues to extend to the servo-actuated group from the servo-actuated group, and wherein last servo-actuated group is replied lead by a group and linked to each other with leading group.This is that a form is simply controlled, and whether all servo-actuated groups have all obtained required synchronizing information.If be not so in the given time, then can shut down, promptly in the moment that collision also do not occur.Certainly, from the second servo-actuated group, the response message group signal conductor of also flowing through.But leading group is connected with the ring-type of servo-actuated group and realizes that immediately this replys.

, particularly preferably be the signal of group signal conductor override ground transmission main shaft sensor here.The main shaft sensor signal is to make to realize required unique signal synchronously between the independent groups.Thereby it is just enough only to transmit these signals or override ground these signals of transmission.This makes and can keep short circulation timei and acquisition to transmit the height reliability of signal when these independent groups intercom mutually.In addition, can use the group signal conductor that also is used for other signal such as auxiliary signal or interfering signal, as long as this lead at leisure.

Equally, the control device of a group preferably connects circlewise.Here, the ring-type connection is the same with the connection type that is used for each group basically.Connect by ring-type, when signal is passed to Servocontrol device from dominating control device, can obtain very high reliability.

Leading control device preferably links to each other with Servocontrol device by signal conductor, and this signal conductor continue to extend to Servocontrol device from Servocontrol device, and wherein the final servo control device is replied lead by one and linked to each other with leading control device.At this, leading control device can recognize control signal corresponding and whether arrive last servo-actuated control.If do not arrive, then can shut down.

Preferably be provided with such pattern control system, promptly it all links to each other with each group.Pattern control system for example can become the form of pattern control system, is depositing in this pattern control system as the data of independent loop-forming element when forming a certain pattern.For example, pattern control system may comprise following operation: sley point relatively crochet hook arrange (as two needle gages left, a needle gage to the right, two needle gages left, three needle gages are to the right or the like).This pattern control system can be drafted separately according to each independent sley bar.Pattern control system generally has a memory, and when wanting knitting another pattern, memory can be stored again.Thereby the change of pattern is more smooth.

Each control system preferably has a curve generator.Curve generator is obtained concrete driving situation of change according to those data from pattern control system, just in acceleration, the deceleration of on-position and the stopping or motion stage therebetween of acceleration mode.Curve generator is an element of finally controlling independent driving mechanism.

Each driving mechanism preferably feeds back to its control device ground and connects.This control device monitoring, whether driving mechanism has finished the task of being assigned to it.Control device just constitutes one with driving mechanism and adjusts the loop.

Best, one group has 16 control device at most.Yet, can control this number.If will supply much more control device, will be with corresponding more group.Certainly, it is basic identical that best configuration should make every group the quantity of control device.

Preferably be provided with 20 above sley bars, they have quantity corresponding driving mechanism.Though can produce than complicated patterns the control device more complicated of 20 independent driving mechanisms with 20 above sley bars.But,, can control a plurality of driving mechanisms reliably by dual principal and subordinate's control system of utilizing leading control device and Servocontrol device and a leading group and a servo-actuated group.

Description of drawings

Below, also in conjunction with the accompanying drawings the present invention is described in detail according to a preferred embodiment.Be illustrated as:

Fig. 1: the schematic diagram of the workspace of a warp knitting machine;

Fig. 2: the schematic diagram of a colored sley bar;

Fig. 3: the schematic diagram of the wiring of driving control system.

The specific embodiment

Warp knitting machine 1 has a workspace 2, and crochet hook 3, sinker holding seat 5 and the knocking-over bar 6 of band slide bar 4 all belong to this workspace 2.Knitted fabric 7 is through output shaft 8 doffs.

A sley bar 9 is supplied with bottom line, and a sley bar 10 is supplied with the sawtooth sideline.Be six sley bar carriage 11-16 behind the sley bar 10, they have 4-12 colored sley bar that becomes the guide band forms respectively.Following these sley bar carriages 11-16 closely is two

jacquard guide bars

17,18 and another bottom line sley bar 19.

Sley bar carriage 11-16 leans against privately and is provided with in pairs.

Schematically illustrated a main shaft 20, it is controlling sley bar 23 that knocking-over bar 6 is housed or the slide bar 24 that crochet hook 3 is housed by cam 21,22.Between sley bar 23 and the cam 21 or between slide bar 24 and cam 22, can be provided with

push rod

25,26.

Main shaft 20 links to each other with the sinker bar 28 that sinker holding seat 5 is housed through crank transmission mechanism 27.Last-mentioned three

sley bars

23,24,28 are parallel to the motion of drawing, just by shown in Figure 1 from bottom to top or motion from right to left, or opposite motion.Sley bar carriage 11-16,

jacquard guide bar

17,18 and bottom

line sley bar

9,10,19 make the pin 31 that is fixed on above them move perpendicular to drawing shown in Figure 1 ground.

Main shaft 20 and only main shaft sensor 30 actings in conjunction shown in the signal.Main shaft sensor 30 sends about the information of main shaft 20 position of rotation continuously and thereby also sends the information of the physical location of knocking-over bar 6, crochet hook 3 and sinker holding seat 5.Main shaft 20 has also just constituted the so-called driving shaft of machine, as following also to narrate, promptly it has sent synchronizing signal.But, also can substitute main shaft 20, for example when no longer needing to come the Mechanical Driven sley bar with main shaft with another driving shaft.In this case, can be with beat generator as driving shaft.

The sley bar 32 that slide bar 4 is housed can connect with main shaft 20 in the mode of not representing in detail equally.But also can equip this sley bar 32 with an intrinsic driving mechanism.

Bottom

line sley bar

9,10,19 and jacquard

guide bar

17,18 have driving mechanism, can sley

bar

9,10,17-19 be moved perpendicular to drawing by driving mechanism.Each sley bar in these sley bars all has an independent driving mechanism, thus this existing five must be controlled single driving mechanism.

Fig. 2 represents the schematic diagram of sley bar carriage 11, and it has 35 group 33 on a plurality of pins, 34, and they also can be called as thread-carrier.The thread-carrier 35 of the mutual correspondence of each group 33,34 is driven together, and promptly they can move on a direction of displacement 37 by a relative sley bar carriage 36, and double-head arrow of these direction of displacement 37 usefulness is represented and extended perpendicular to drawing ground in Fig. 1.Can be provided with the device that is not shown specifically, use this device, can make sley bar carriage 36 motion on direction of displacement 37 equally.

The driving of thread-carrier 35 is realized by the traction piece 38 that becomes steel wire or steel wire rope form.Each traction piece is driven by a drive motors 39, and wherein the two ends of traction piece 38 are tensioned by tensioning apparatus 40,41.Do not installing on that end of driving mechanism 39, through a leading block 42 guiding tension elements.

The cylinder that tension element 40,41 can be designed to have same cross-sectional area, a pressure P is applied to it.Thereby traction piece 38 bears identical power on both direction, makes the required power of thread-carrier 35 motions thereby 39 needs of driving mechanism are applied.Another kind of scheme is to remove tension element in a side.

Sley bar carriage 11 has eight traction pieces 38, and wherein each all must be controlled separately.If six sley bar carriages just must be controlled 48 traction pieces 38, thereby the driving mechanism 39 of just necessary control respective numbers.In the present embodiment, must come together to control driving mechanism with the driving mechanism of

sley bar

9,10 and 17-19, thereby single sley point 31, cable guiding device 35, crochet hook 3, slide bar 4, sinker holding seat 5 and knocking-over bar 6 are controlled, thereby make the work that cooperatively interacts of their without collisions.

For this task, a driving control device 50 shown in Fig. 3 signal is set.

As shown in the figure, each driving mechanism 39 respectively with control device 51 cooperatings.Here, control device 51 has a sensor 52, and the position of its monitoring driving mechanism 39 also feeds back to control device 51.Control device 51 constitutes one with driving mechanism 39 and adjusts the loop.

In the following description, all driving mechanisms are all represented with M.This might not mean that it is identical that these driving mechanisms all must be designed to.And the driving mechanism that is arranged in the thread-carrier in the sley bar slippage frame 11-16 to be designed to be identical.But, the driving mechanism of bottom

line sley bar

9,10,19 and

jacquard guide bar

17,18 must be designed to different size.

As shown in the figure, the control device 51 of driving mechanism M is at first organized by composition, and this represents by chain-dotted line.Dotted line limit the group I-III scope.In every group of I-III, control device 51 that a thick black surround of usefulness is indicated and the leading control of one-tenth or " master control set " form is arranged all.

The control device 51S that is called as Servocontrol device or " slave unit " below each leading control device 51M gives through holding wire 53 provides signal.Be provided with a feedback conductor 54, the last control device 51 of each group linked to each other with leading control device 51M with this.In one group, all control device 51M, 51S, 51 link to each other circlewise, and wherein leading control device 51M can control its signal and whether arrive all Servocontrol device 51S, 51.

These independent groups are together in parallel again approx, and promptly its leading control device 51M interconnects through group holding wire 55, wherein is provided with a group and replys lead 56, and it makes the leading control device 51M of last group of III link to each other with the leading control device 51M of first group of I.Therefore, first group of I correspondingly is designed to leading group.Group II and III just form the servo-actuated group.

Independent control device is arranged to matrix form, also can adopt other arrangement form at this.

30 leading control device 51M with leading group I of main shaft sensor link to each other.To be driving shaft information be transferred to the leading control device 51M of servo-actuated group II, III by group signal conductor 55 to the information of main shaft sensor 30, exactly be override be transferred to them.Do not need to transmit another information through group signal conductor 55.But as long as group signal conductor 55 is at leisure, just under any circumstance all not that preferential capstan information takies, then also can be with its transmission line as supplementary.

The leading control device 51M of leading group I certainly is provided with another input port 58, by it, can transmit the control data of common control system of machine, as the SPS-data.

A pattern control system 60 links to each other with all leading control device 51M.Pattern control system 60 comprises about wanting the data of Weaving pattern, just the position of each loop-forming element after each circulation of warp knitting machine.In other words, pattern control system 60 comprises such information, and promptly how far each

sley bar

9,10 or 17-19 or sley bar carriage 11-16 and wherein contained thread-carrier 35 must move in a circulation to the left or to the right.In this this pattern control system, can comprise following information, promptly in which group I, II, III, can find control corresponding device 51M, 51S, 51 or corresponding driving mechanism 39, thereby the data that pattern control system 60 just will belong to a group of I, II or III export corresponding leading control device 51M to.Leading control device 51M continues to be transferred to corresponding Servocontrol device 51S with these corresponding datas by holding wire 53.

Each control device all has a curve generator 61, and its calculates the motion that each sley bar or thread-carrier must be carried out according to the data that come from pattern control system 60, so that the pattern that is stored in 60 li of pattern control systems is achieved.Here, each sley bar or say thread-carrier and the acceleration of traction piece and decelerability are all played a role, promptly curve generator 61 is calculated accelerating sections and braking section, stop segment and constant-speed section and these independent driving mechanisms 39 of corresponding control.

Can stipulate whole driving control device 50 periodical exchange data.In each circulation, for example this information can arrive the leading control device 51M of leading group I from main shaft sensor 30.In next circulation, this information continues to reach the leading control device 51M of next servo-actuated group II, and in the 3rd circulation, the information of this relevant main shaft situation is further reached the leading control device 51M of next servo-actuated group III.

Perhaps, also can resemble the telegram to all control device or set up upright information, wherein each group or control device only need be differentiated with analyzing and processing and share telegram byte to it.

If all group I-III receive this information, then these information are assigned with in these groups, just these information are continued to transfer to Servocontrol device 51S by leading control device 51M, wherein so transmit this information, and promptly each circulation is through a Servocontrol device.

Parallel with it or following closely, these pattern-informations can arrive at each leading control device 51M, leading control device continues to be transferred to each Servocontrol device 51S with these property information cycle ground.

In this way, won certain hour for the control of each driving mechanism 39 really.But this time is than shorter when all control device 51M, 51S just connect simply.

Claims

1. knitting machine and especially warp knitting machine, it has many sley bar and drive units that are used to drive sley bar that loop-forming element is housed, this drive unit has a plurality of independent driving mechanisms that have control device, it is characterized in that, described control device (51M, 51S, 51) be subdivided at least two control device are arranged respectively (51M, at least two group (I 51S), II, III), wherein one group (I) is designed to leading group, at least one group of remaining (II, III) be designed to the servo-actuated group, wherein in every group (I-III), a control device is designed to leading control device (51M), and at least one remaining control device is designed to Servocontrol device (51S).

2. by the described knitting machine of claim 1, it is characterized in that drive unit (50) has a main shaft (20) that has a main shaft sensor (30), this main shaft is directly driven to a few sley bar (23,24,28) through a transmission device (25-27).

3. by the described knitting machine of claim 2, it is characterized in that main shaft sensor (30) links to each other with the leading control device (51M) of leading group (1).

4. by one of claim 1-3 described knitting machine, it is characterized in that these groups (I-III) connect circlewise.

5. by the described knitting machine of claim 4, it is characterized in that, leading group (I) and servo-actuated group (II, III) link to each other through a group signal conductor (55), it continue to extend to servo-actuated group (III) this group holding wire from servo-actuated group (II), and wherein last servo-actuated group (III) is replied lead (56) through a group and linked to each other with leading organize (I).

6. by the described knitting machine of claim 5, it is characterized in that group holding wire (55) override ground continues to transmit the signal of main shaft sensor (30).

7. by one of claim 1-6 described knitting machine, it is characterized in that (51M 51S) connects the control device of a group (I-III) circlewise.

8. by the described knitting machine of claim 7, it is characterized in that, leading control device (51M) links to each other through a signal conductor (53) with Servocontrol device (51S), this signal conductor continue to extend to Servocontrol device (51S) from Servocontrol device (51S), and wherein final servo control device (51) is replied lead (54) by one and linked to each other with leading control device (51M).

9. by one of claim 1-8 described knitting machine, it is characterized in that be provided with a pattern control system (60), it links to each other with every group (I-III).

10. by the described knitting machine of claim 9, it is characterized in that (51M 51S) has a curve generator (61) to each control device.

11., it is characterized in that (39, (51M connects each driving mechanism M) all to feed back to its control device 51S) by claim 9 or 10 described knitting machines.

12., it is characterized in that one group (I-III) is up to 16 control device by one of claim 1-11 described knitting machine.

13. one of control claim 1-12 described knitting machine is characterized in that, is provided with sley bar (9-19) more than 20 together with quantity corresponding driving mechanism.