CN1793458B

CN1793458B - Hydraulic servo direct driving device of harmness frame

Info

Publication number: CN1793458B
Application number: CN 200510136901
Authority: CN
Inventors: B·明斯特
Original assignee: Groz Beckert KG
Current assignee: Groz Beckert KG
Priority date: 2004-12-21
Filing date: 2005-12-20
Publication date: 2010-12-08
Anticipated expiration: 2025-12-20
Also published as: DE102004061351B3; ITMI20052428A1; CN1793458A; FR2879629B1; FR2879629A1; JP2006176947A

Abstract

According to the invention, a heald frame driving device has servohydraulic driving units (6, 7) preferably connected on a heald frame (1). The driving units include journey measurement systems and regulate desirable heald frame position at respective self position regulating loops. The driving units (6, 7) are controlled by a guide signal via a common theoretical value generator. Owing to the direct driving device, the heald frame driving device has the advantages of mechanical rigidity, less vibration and more flexibility in terms of application field.

Description

The hydraulic servo direct driving device of heald frame

Technical field

The present invention relates to a kind of harness frame drive device of loom.

Background technology

Heald frame all is used to form shed open in the loom that majority is used always.The so-called shed open that forms makes warp thread come out from the warp thread planar offset exactly, and this makes fabric tissue for the introducing weft yarn and must want.Warp thread is pulled through the guide eye of so-called heald, these guide eye are positioned on the heald bar with following heald end loop accordingly with it for this reason.Upper and lower heald bar is by a frame-like member supporting, and this member is called heald frame.This heald frame extends on the whole width of the fabric that will make and must in extremely rapid succession move back and forth up and down.Drive unit for design has for this reason proposed high requirement, and described requirement is related to inertia force that will produce and the operating rate that will reach.

By DE 31 20 097 known harness frame drive devices by the piston-cylinder-kit.This drive unit has a cylinder body and one to be positioned at the piston that cylinder body supports movably respectively, and this piston is respectively equipped with a piston rod two end face sides.This piston rod stretches away from the two ends of cylinder body.Upper piston rod links to each other with the last heald lath of heald frame by stretching tool, and lower piston rod links to each other with the following heald lath of heald frame by another stretching tool.

This structure just has many difficulties when operating rate is higher.

By DE-OS 1813411 known a kind of similar devices.Hydraulic pressure that is used to drive or pneumatic linear actuator come machinery control by a disc cam, and it handles the feeding valve of a correspondence.

This structure also is unwell to the high operating rate of realization.

Handle heald frame by GB 591904 is known by means of fluid cylinder, the piston rod of this cylinder is connected with heald frame and acts on the heald frame from following.Fluid cylinder has only a piston rod respectively, and it stretches out in this cylinder and be connected with heald frame in a side of cylinder body.Piston rod is subjected to a kind of oscillating load when producing reciprocating motion, wherein draws, presses mutually alternately.With regard to compressive load, must make piston rod be designed to rigidity, and to bend-insensitive, but this has improved quality that is participated in and the operating rate that has therefore limited device again.

In DE 1802118, advised heald frame directly being driven by means of the fluid that is in pressurized.Upper and lower for this reason heald frame is designed to the I-section respectively, and its dividing plate passes a lateral slot of elliptical tube and fixes hermetically there.This elliptical tube is as fluid cylinder, is located at portion's section of having widened on the dividing plate and is separated into a top and a working chamber bottom for one in this cylinder.By to or the pressurization of a chamber or another chamber whole heald frame is moved on a direction or another direction.

This structure is based upon on a kind of basis of special heald frame geometry and has therefore confirmed in practice mostly and unpractical.

Drive a kind of knitting frame of knitting machine by DE-PS 24 52 631 is known by hydraulic motor, these motors directly are connected with knitting frame.Hydraulic motor is controlled by by-pass valve control, and this valve is designed to banked direction control valves and handles by electric stepper motor.

The document has also shown: itself should be known that the valve arrangement that will be used for controlling hydraulic motor in the regulating loop of a so-called follower, this mechanism is according to a kind of adjusting parameter of adjusting knitting frame of relatively producing of theory/actual value.Can think thus, desirable adjustment campaign by the electric parameter of a simulation in other words voltage predesignate, and this theoretical value parameter and actual value relatively cause having formed a kind of pulse that has influence on electric liquid control valve.Hydraulic motor moves according to the size and Orientation of this pulse, wherein and then realizes necessary stopping by the size that compares theoretical value and actual value again.Realize higher operating rate in order to set out thus, suggestion: the location of abandoning position adjustments and realizing knitting frame by means of hydraulic cylinder, this hydraulic cylinder is controlled by stepper motor.

Summary of the invention

Therefore the objective of the invention is to design a kind of drive unit that is used for heald frame of proposition, it can control and allow high operating rate simply.

This task is by solving according to claim 1 and 15 described harness frame drive devices:

Have at least one double acting hydraulic cylinder according to harness frame drive device of the present invention according to claim 1, its piston rod stretches out in hydraulic cylinder in both sides.Two ends of piston directly or by a corresponding intermediate beam connect with heald frame.Therefore it is just unnecessary to transmit the stretching tool of adjustment movement by prior art being used to mostly of learning.Compare with fluid pressure drive device, this drive unit has used the flat link chain with lever, connecting plate and similarity piece to be used for connection between fluid pressure drive device and heald frame, and its advantage that directly is connected in other words of this rigidity of the upper end of the piston rod of fluid pressure drive device and bottom and heald frame is the operating rate that can reach higher.Piston rod can be done more elongatedly relatively.Therefore the inertia force that interrelates with fluid pressure drive device can minimize.The connection that the connection of the power rigidity between piston rod end and the heald frame is determined in other words and be not precluded within piston rod and heald frame between form burble point or tie point.In any case but transmit connecting plate or the similarity piece that does not have stretching tool bendable or can be hinged, hinged support in the stroke in power.

Though also can for example be arranged under the heald frame on the hydraulic cylinder principle, be preferably in side arrangement on the side of heald frame bearing next door.This has formed short power and has transmitted stroke and therefore formed a kind of corresponding rigidity and the therefore high total that dynamically can move.More preferably be that these two pistons only are stressed, that is to say that they are designed to pass member.On two piston rods of cylinder, just transmit power respectively slippingly.Upper piston rod compresses heald frame upwards when upward stroke, and lower piston rod makes heald frame quicken downwards to down stroke the time.This just forms a kind of special compact structure.

A kind of preferred embodiment in corresponding hydraulic jack be arranged on two side bearings of heald frame.These oil cylinders are synchronously controlled, so heald frame is implemented a kind of rectilinear motion.Advantageously can be provided with one or more additional hydraulic drive unit at least when heald frame is very wide, these unit preferably are arranged under the heald frame and with following heald lath and are connected.Such additional drive system preferably is arranged on the position that heald lath is connected with each other by intermediate connector.This has just reduced the dynamic bending of heald frame.

The hydraulic jack of adjacent heald frame can be formed an oil cylinder group.This oil cylinder set constructor relative narrower also can make the loom structure compactness, work fast and reposefully.The oil cylinder group of hydraulic jack preferably directly is connected with valve sets, thereby makes fluid pressure line between valve and the hydraulic jack can design to such an extent that lack and be imbued with rigidity.As the piston rod end directly was connected on the bearing of on the intermediate beam or side, this caused the minimizing vibrated, had realized a kind of performance of transmitting preferably thus between prescribed motion curve and the motion that in fact realized by heald frame.High in addition system pressure, for example the maximum volume flow of 160 crust and low each oil cylinder for example just can realize 601/min.Pick count can reach and surpass 1,000/min.

The not direct and side bearing in two ends of piston rod in a kind of preferred implementation, but at first be connected with an intermediate beam.This be used for to the additional guide of heald frame to and prevent that piston rod and hydraulic cylinder are subjected to acting radially on the piston rod, the power that may set out by heald frame.

Piston rod can be directly or another kind of scheme middle ground, for example is connected with a stroke measuring device by intermediate beam, and this stroke measuring device constantly records current location that heald frame drives and is defeated by a regulating loop as actual value.Control device can be with this actual value constantly with a theoretical value comparison and come valve in the by-pass valve control group like this, thereby make the deviation minimum.Formed a kind of real hydraulic servo drive unit in this way, can carry out linear adjustment to heald frame corresponding to targeting signal by this drive unit.By the respective settings of control signal,, just can set and realize almost curve movement arbitrarily for example by computer control.For example the setting of curve movement makes the acceleration peak value minimum and will consider low heald frame vibration.

Two driver elements preferably all are furnished with the position adjustments loop of self, and this loop is according to a common setting value job, but separate in other cases haveing nothing to do.Each position adjustments loop has stroke sensor of self and the resonance-amplifier of himself for this reason.Can be provided with a monitoring means in addition, it monitors the adjusting deviation of these two regulating loops, and just produces a signal when the difference of regulating deviation is too big.This signal can be used as cut-off signal.

Stroke measuring device directly is connected with heald frame, so that detect its actual place value, the position in a middle part for example.This measure just can be used for overcoming the heald frame vibration that is produced.

Integrated box movement can carry out synchronously by the drive unit of plain mode and loom, its method be make the setting signal of loom operating rate synchronous.Vibration when machine start, machine stop or can automatically consider the loom running speed during machine slow running thus.

The other details of favourable embodiment of the present invention is the content of specification, accompanying drawing or claims.

Description of drawings

Accompanying drawing has been represented a kind of embodiment of the present invention.Be depicted as:

Fig. 1: one group of perspective simplified view that has the harness frame drive device heald frame of attaching troops to a unit;

Fig. 2: the vertical view of heald frame shown in Figure 1;

Fig. 3: the thin portion shown in Figure 2 that represents with another kind of ratio;

Fig. 4: the perspective view of pressing the harness frame drive device of heald frame one side shown in Figure 1;

Fig. 5: the vertical sectional view of harness frame drive device shown in Figure 4;

Fig. 6: the vertical view of pressing harness frame drive device shown in the Figure 4 and 5;

Fig. 7: the sketch that is used to control the control device of harness frame drive device.

The specific embodiment

Fig. 1 has represented one group of heald frame, and heald frame 1 promptly belongs to this heald frame group.Heald frame is provided with heald not shown further and is used to form shed open on a loom.What belong to this heald frame 1 has one to go up heald lath 2, a following heald lath 3 and a side bearing 4,5, the frame of the latter and a rectangle of upper and lower heald lath 2,3 formations.This frame is used to receive heald not shown further.What be used to drive the identical and heald frame that do not relate separately to of heald frame 1 and other structure basically is driver element 6,7, and they are connected in the side bearing 4,5 of heald frame 1 or are connected to the right-hand member and the

left end

8,9,11,12 of heald lath 2,3.

Driver element 6,7 be configured to mutual minute surface symmetry.They also can be designed to identical or similar identical or minute surface symmetric arrangement similarly and just mutually.Therefore explanation to driver element 6 subsequently correspondingly is applicable to driver element 7.Driver element 6,7 at first is used to drive heald frame, but also is used for their guiding.For this reason can be referring to Fig. 2 and 3.Heald frame is relatively lacked (flat) respectively at warp thread traffic direction vertical among Fig. 2 and 3.For example their length of being surveyed on vertically at warp thread only is 12mm.They flatly recline mutually and keep little spacing mutually by spacer or the slide block that reduces to rub.Side bearing 4 (with the side bearing 5 of correspondence) has a gathering sill 13 at it facing on the face of driver element 6 (or 7), and it vertically is arranged on the leptoprosopy that is positioned at the outside of side bearing 4.Director element 14 is used for the guiding of side bearing 4 and therefore is used for the guiding of heald frame 1.This director element is designed to crossbeam, has a series of projections to stretch out from crossbeam.Each projection 15 stretches into separately, and therefore its gathering sill of cooperation of side bearing 4 also forms a kind of vertical slide-and-guide with this groove for 13 li.

Director element 14 flanges are connected on the side direction installed surface of a guide way 16, and this guide way is connected with an oil cylinder group 17.Guide way 16 has a kind of basic configuration of rectangular shape.Facing to it has a series of vertical guide channels 18 on the face of director element 14, they for example as diagram, have rectangular cross section.They are used for the guiding of the slip of guide post 19, and especially by Fig. 5, but all the other are also by Fig. 1 as them, 3,4 and 6 visible like that.Each guide post 19 is in 18 li vertical parts of the slide 21 of guiding slippingly of guide channel.Be meant a kind of slide-and-guide herein.Can certainly use the rolling element guiding, for example resemble the roller guiding.

Guide post 19 is end and enter a contiguous block 22,23 in its bottom respectively and determine with such being connected and connect thereon.The connection of rigidity is determined and 22,23 facing on side bearing 4 one

sides bindiny mechanism

24,25 to be arranged at it, and it is used for connecting with side bearing 4 or with the

end

8,9,11,12 of heald lath 2,3.Contiguous block 22,23 has projection 26,27 on away from the face of

bindiny mechanism

24,25, and these projections are stipulated a wide hole each other and had plane mutual sensing, that preferably be parallel to each other.Put oil cylinder group 17 at spacing like this notch lining.The size of the spacing on the plane of the mutual sensing of the length of guide post 19 and projection 26,27 will make slide 21 can finish enough vertical stroke for forming shed open on guide way 16.It for example is 150mm in an embodiment.

Oil cylinder group 17 has many oil har openings 28, and wherein the quantity of oil har opening 28 is corresponding to the quantity of projection 15 and consistent with the quantity of slide 21.Oil har opening 28 preferably becomes two, if necessary, also becomes a plurality of row to be staggeredly arranged.Therefore the diameter of single oil har opening 28 can be greater than the wide 12mm of heald frame, as in an embodiment for example shown in like that.The length of the projection 26,27 of slide 21, as seen from Figure 5, its size design is wanted to overlap two row oil har openings 28.Oil har opening 28 is parallel to guide post 19 and their guide channel 18.Be furnished with a piston 29 slidably with vertical hermetically 28 li of each oil har openings, piston 29 is only just much of that with a unique seal in an embodiment.

Piston 29 links to each other with a piston rod 31, and this piston rod passes the upper and lower working chamber 32,33 that is separated by piston 29 accordingly and extends.In addition it also by the upper and lower end cap that closes working chamber 32,33 34,35 that is arranged on the oil cylinder group 17, the latter has the through hole 36,37 with its coupling.Be preferably in the piston rod bearing mechanism that 36,37 li of these through holes are respectively equipped with a static pressure.This mechanism might realize the high-speed of piston rod.Preferably seal by contactless clearance seal.This minimizes friction effect.

The end is also as there being end face 38,39 plane or that be sphere slightly respectively in its bottom thereon for piston rod 31, and it seamlessly abuts on the plane of corresponding projection 26,27.Therefore each motion of piston 29 all is directly delivered on the slide 21.

Be connected with a valve sets 41 at oil cylinder group 17 upper flanges, it has the reversal valve 42 that makes working chamber 32,33 unloadings that is used to pressurize of electricity (electromagnetism, motor) control.Corresponding fluid passage 43,44 directly is located in the valve sets 41.They can directly feed 17 li of oil cylinder groups, and as shown in the figure, and they connect by short connecting line 45,46 and end cap 34,35.Each piston 29 or each oil har opening 28 dispose a reversal valve 42 at least.

Be provided with a stroke measuring device 47 in order critically to detect piston 29 and the especially motion of slide 21.What belong to this is a non-indicative measurer 48, and it for example can be connected with slide 21.It moves together with slide 21 and a corresponding hole by guide way 16.On this guide way, be provided with the sensor 49 (just simple expression among Fig. 7) of a corresponding configuration.Stroke measuring device 47 provides measured value simulation or numeral of electricity, and it has marked the current location of slide 21 respectively.

Fig. 7 has represented the hydraulic system according to harness frame drive device 1 of the present invention, roughly uses two hydraulic jacks that drive heald frame 1 of driver element 6,7 to make embodiment.For this is attached troops to a unit and makes subscript in the element of the driver element 6 of side bearing 4 with " a " for the purpose of distinguishing, make subscript in the member of the driver element 7 of side bearing 5 with " b " and attach troops to a unit, wherein there is not the Reference numeral of inferior to be equally applicable to this two driver elements 6,7.The used Reference numeral in front can be used as Reference numeral.

Control device 51 has self a

position adjustments loop

52a, and 52b is used for the corresponding hydraulic jack of driver element 6 and 7, and this control device is used for controlling the hydraulic jack of driver element 6,7.Two position adjustments loops 52 obtain a setting value or a theoretical value by 53 outputs of theoretical value generator.This generator links to each other with loom by circuit 54 and obtains a cadence signal from this loom.This cadence signal can be a continuous or periodic signal and the operating rate that has indicated loom.Theoretical value generator 53 produce one preferably the time continuously targeting signal as the theoretical value signal.Targeting signal is a function of time, and it has reflected heald frame 1 desirable motion.Can think under the simplest situation: the function of time of theoretical value is consistent with the function of time of desirable integrated box movement.

Belong to control device 1 or

position adjustments loop

52a, 52b has difference amplifier 55a simulation or digital, 55b, and they obtain the theoretical value signal respectively a porch, and obtain by sensor 49a the actual value signal that 49b provided respectively in another porch.The difference signal that is produced is defeated by a resonance-amplifier 56a, 56b.Regulator output signal is used to control

electromagnetic valve

42a, 42b, this valve preferred design becomes servo valve twin-stage, hydraulic pilot control, its have negative covering amount (

Berdeckung) and machinery feedback.

Electromagnetic valve

42a, 42b is designed to reversal valve, they passage 43,44 is closed or in the same way or another kind of scheme be connected with a pressure source P or an outlet T across.As preferably constant-voltage system of pressure source P, they have pressure controlled servo drive hydraulic pump together with the hydraulic accumulator that is used for the limited flow peak value that does not further illustrate.Be provided with the fluid cooler in addition and be used to discharge the loses heat that produces owing to energy loss.

In a kind of embodiment of refinement, can make amendment to the theoretical value generator, thus the operating rate that it for example depends on loom make theoretical value over time curve deviate from the in fact desirable curve movement of heald frame.Mention sure (pr at this

Dikativer) theoretical value is set.This setting considered the adjusting deviation that occurred and determined the size of current separately theoretical value when corresponding work speed, thus the theoretical value that when considering the regulating error (adjusting deviation) that is occurred for this theoretical value and work at present speed, can reach in fact to be wanted.To a certain extent the hysteresis error that should relevantly with speed be produced by adjuster is added on the theoretical value.

Therefore the following work of described harness frame drive device:

Heald frame 1 is being fixed on respectively on two side bearing 4,5 in the bindiny mechanism 24 at least, perhaps also uses two

bindiny mechanisms

24,25 fixing, and vertically leads back and forth up and down in accordance with regulations.What be used for this is driver element 6,7, and they have a hydraulic oil anus at least for each heald frame.Control device 51 obtains a targeting signal and is used to make integrated box movement on lead 54, this signal for example can be a kind of form of the signal of telecommunication of the current angle position feature of describing loom main shaft.Produced corresponding to this theoretical value generator 53 of sort signal and to be used for the separate mutual position adjustments loop 52a of concurrent working irrespectively, the theoretical value of 52b.Adjuster 56a there, 56b determined in theoretical value with by this sensor 49a, the deviation between the measured actual value of 49b is also exported a control signal corresponding and is given electromagnetic valve 42a, 42b.These electromagnetic valves are given the 32a of work chamber, 32b or 33a, and the 33b pressurization makes two

piston

29a, and 29b moves on the identical desirable vertical nominal position.By piston rod 31a, therefore 31b makes the slide 21 of driver element 6,7 synchronously move on on the desirable position and heald frame 1 is on the desirable position.Theoretical value generator 53 changes theoretical value continuously when machine run.Piston 29a, 29b correspondingly follow this theoretical value signal continuously, wherein they each the time be engraved in and all pass through position adjustments loop 52a on its position, 52b controls.So just can be by the upper and lower mobile formation shed open that control is arranged of heald frame 1.

A kind of preferred embodiment in the theoretical value generator both also produced the vertical vibration that amplitude is less in the lower terminal end position in the upper terminal position that is considered to resting position of heald frame 1 itself.This vertical vibration has hindered the unexpected variation of heald frame acceleration, as they otherwise when heald frame is braked, can occur speed be zero and maintenance speed then be zero.Therefore this heald frame vibration in the scope of upper and lower stroke end has avoided occurring impacting and occurring undesired vibration in heald frame.

Direct drive unit by heald frame does not make vibration reduce with can having transmission member and the motion of drive unit almost is delivered on the heald frame 1 purely.Inertia force and frictional force and all minimized by the hysteresis error that vibration causes can produce a kind of heald frame swing in the scope of upper and lower end, make the acceleration minimum that is produced.This makes heald frame load less, and it is low to consume energy.The heald frame stroke can be regulated.For example can make the size of shed open width be matched with the value of accordingly special fabric being surveyed respectively.This realizes by the value of correspondingly importing on theoretical value generator 52.

Have the driver element 6,7 of hydraulic servo according to harness frame drive device of the present invention, they are preferably in the side and are fixed on the heald frame 1 with flange.They include the stroke measurment system, and they adjust desirable heald frame position in the fixed position regulating loop respectively at one.Two driver elements 6,7 are controlled by a common targeting signal of a common theoretical value generator.Since the form of this direct driving has formed a kind of mechanically rigidity, few vibration and with regard to the application scenario more flexibly heald frame drive.

Reference numerals list

1 heald frame, 32,33 working chambers

On 2,3,

lower heald lath

34,35 end caps

4,5 side bearings, 36,37 through holes

6,7 driver elements, 38,39 end faces

8,9,11,12 ends, 41 valve sets

13 gathering sills, 42 magnetic valves (reversal valve)

14 director elements, 43,44 fluid passages

15 projections, director element 45,46 connecting lines

16 guide waies, 47 stroke measuring devices

17 oil cylinder groups, cylinder body 48 non-indicative measurers

18 guide channels, 49 sensors

19 guide posts, 51 control device

21 slides, intermediate beam 52 position adjustments loops

22,23 connect the 53 theoretical value generators of determining

24,25 bindiny mechanisms, 54 circuits

26,27 projections, 55 difference amplifiers

28 oil har openings, 56 resonance-amplifiers

29 piston P pressure sources

31 piston rod T outlets

Claims

1. the harness frame drive device that is used for harness frame in aweaving machine (1), it has at least one double-acting hydraulic jack, and this hydraulic jack has a cylinder body (17), it has a upper end cover (34) and a bottom end cover (35), wherein end cap (34,35) is respectively equipped with a through hole (36,37); Have an oil har opening (28) of being located in the hydraulic jack, a piston (29) can support slippingly in oil har opening; Also has a piston rod (31) that is connected with this piston (29), the through hole (36) that upper end cover (34) are passed in its upper end extends, the through hole (37) that bottom end cover (35) are passed in its bottom extends, and wherein these two ends link to each other with a heald frame (1) or an intermediate beam (21) respectively.

2. by the described harness frame drive device of claim 1, it is characterized in that hydraulic jack is on a side bearing (4, the 5) next door of side arrangement at heald frame (1).

3. drive by the described heald frame of claim 1, it is characterized in that, on heald frame (1), be provided with hydraulic jack in the side on the next door of two side bearings (4,5) respectively.

4. drive by the described heald frame of claim 1, it is characterized in that a plurality of hydraulic jacks are combined into an oil cylinder group and are used to drive a plurality of heald frames.

5. by the described harness frame drive device of claim 1, it is characterized in that hydraulic jack links to each other with a valve sets (41), this valve sets have can be automatically controlled valve (42) be used for controlling pressurization to piston (29).

6. drive by the described heald frame of claim 1, it is characterized in that, intermediate beam (21) is a slide that can support slippingly on a guide direction by means of guider (18,19), and wherein guide direction is consistent with the direction of motion of piston (29).

7. by the described harness frame drive device of claim 1, it is characterized in that intermediate beam (24) is provided with at least one bindiny mechanism (24) and is used to connect heald frame (1).

8. by the described harness frame drive device of claim 1, it is characterized in that intermediate beam (24) is provided with the side bearing (4,5) that at least one bindiny mechanism (24) is used to connect heald frame (1).

9. by the described harness frame drive device of claim 6, it is characterized in that guider (18,19) has at least one director element (15) and is used for the side bearing (4,5) of heald frame (1) is led.

10. drive by the described heald frame of claim 1, it is characterized in that piston rod (31) links to each other with a stroke measuring device (47), signal of the trip measurement mechanism output corresponding to piston rod (31) current location.

11. drive, it is characterized in that stroke measuring device (47) connects with intermediate beam (21), side bearing (4,5) or heald frame (1) by the described heald frame of claim 10.

12., it is characterized in that stroke measuring device (47) and valve sets (41) all are connected in a control device (51) and are used to control harness frame drive device by the described harness frame drive device of claim 10.

13. according to the described harness frame drive device of claim 12, it is characterized in that, control device (51) is an apparatus for adjusting position (52) that is used to regulate corresponding to the time dependent setting signal of current heald frame position, wherein has a position adjustments loop own for each hydraulic jack.

14., it is characterized in that the operating rate of described setting signal and loom is synchronous by the described harness frame drive device of claim 13.

15. the harness frame drive device of harness frame in aweaving machine (1), it has at least one double-acting hydraulic jack, and it has a cylinder body (17), and cylinder body has an end cap (34) at least, and end cap is provided with a through hole (36); Has a piston (29) that is supported on oil har opening (28) lining of hydraulic jack movably; Have a piston rod (31) that is connected with piston (29), it has an end of passing through hole (36) extension of end cap (34), and this end links to each other with heald frame (1); Also have a stroke measuring device (47), the output of the trip measurement mechanism is corresponding to the signal of piston rod (31) current location; Also have a valve sets (41) and be used for the pressurization of control piston (29); And have a control device (51) that is connected in stroke measuring device (47) and valve sets (41) and be used to control harness frame drive device.

16., it is characterized in that control device (51) is an apparatus for adjusting position (52) that is used to regulate corresponding to a time dependent setting signal of current heald frame position by the described harness frame drive device of claim 15.

17., it is characterized in that the operating rate of described setting signal and loom is synchronous by the described harness frame drive device of claim 16.

18., it is characterized in that hydraulic jack is on the next door of side arrangement at a side bearing (4,5) of heald frame (1) by the described harness frame drive device of claim 15.

19., it is characterized in that a plurality of hydraulic jacks are formed an oil cylinder group and are used to drive a plurality of heald frames by the described harness frame drive device of claim 15.

20. by the described harness frame drive device of claim 15, it is characterized in that, on heald frame (1), all be provided with hydraulic jack in the side on the next door of two side bearings (4,5) respectively.

21. by the described harness frame drive device of claim 15, it is characterized in that cylinder body (17) has a upper end cover (34) and a bottom end cover (35), wherein end cap (34,35) is respectively equipped with a through hole (36,37).

22. by the described harness frame drive device of claim 21, it is characterized in that, the piston rod (31) that is connected with piston (29) has a upper end and the bottom that the through hole (37) that passes bottom end cover (35) extends of passing through hole (36) extension of upper end cover (34), and wherein two ends directly are connected with a heald frame (1) or an intermediate beam (21) respectively.

23., it is characterized in that the end of piston rod (31) and heald frame (1) or an intermediate beam (21) are rigidly connected by the described harness frame drive device of claim 22.

24. by the described harness frame drive device of claim 22, it is characterized in that, intermediate beam (21) be one by means of a guider (18,19) slide of supporting slippingly on guide direction, wherein guide direction is consistent with the direction of motion of piston (29).

25., it is characterized in that intermediate beam (21) is provided with at least one bindiny mechanism that is used to connect heald frame (1) (24) by the described harness frame drive device of claim 22.

26., it is characterized in that intermediate beam (21) is provided with at least one bindiny mechanism (24) that is used to connect the side bearing (4,5) of heald frame (1) by the described harness frame drive device of claim 22.

27., it is characterized in that guider (18,19) has a director element (15) at least and is used for the side bearing (4) of heald frame (1) is led by the described heald frame device of claim 24.

28., it is characterized in that stroke measuring device links to each other with intermediate beam (21), side bearing (4) or heald frame (1) by the described harness frame drive device of claim 15.