CN1051816C

CN1051816C - Heald control system

Info

Publication number: CN1051816C
Application number: CN93119065A
Authority: CN
Inventors: N·纳韦
Original assignee: Bonas Machine Co Ltd
Current assignee: Li Tak Tak Northeast Ltd; Textilma AG
Priority date: 1992-09-05
Filing date: 1993-09-04
Publication date: 2000-04-26
Anticipated expiration: 2013-09-04
Also published as: JP3261434B2; EP0658223A1; DE69322398T2; EP0658223B1; GB9218838D0; KR950703087A; JPH08504236A; WO1994005839A1; TW232058B; DE69322398D1; GB2271361B; GB2271361A; CN1087690A

Abstract

A heald control system for moving individual heald rods to an upper or lower shed position, the system including a plurality of stiff heald rods, at least one motive assembly oscillating between upper and lower positions corresponding to said upper and lower shed positions, the motive assembly including for each individual heald rod selectively actuatable engagement means which on actuation engages the heald rod to connect it to the motive assembly and cause it to be moved toward one of said positions.

Description

Heald control system

The present invention relates to a kind of heald control system, relate in particular to and a kind ofly can be selectively move to one to each heald bar and go up or the heald control system of lower shed position.

According to an aspect of the present invention, the invention provides a kind of heald control system so as each heald bar move to one go up or under the shed open position, this system comprises the heald bar of a plurality of rigidity, the head that at least one can be swung between the upper and lower position corresponding to said upper and lower shed open position, have engagement device for each this head of heald bar that can select to drive, this engagement device engages with heald bar so that be connected to this heald bar on this head and this heald bar is moved to a said position when driving.

The example of the heald control system of the above-mentioned type is found in GB-1, and 467,231.

GB-1,467,231 disclose and a kind ofly are used for that single heald bar is moved to one and go up or the heald control system of lower shed position.This system comprises the heald bar of a plurality of rigidity; The head that at least one can be swung between the upper and lower position corresponding to described upper and lower shed open position, this head has for each heald bar can select the engagement device that drives, connects to put when driving to engage to be connected to heald bar to make this heald bar mobile to one of described position on the head.

At GB-1, in 467,231, engagement device is an electromagnet, its will be correlated with upper end magnetic engagement of heald bar.

This good bright purpose is to provide a kind of improved heald control system, its engagement device can make heald bar can be tight how be arranged side by side.

Be used for that single heald bar is moved to one and go up or lower shed position (US according to of the present invention, LS) heald control system, this system comprises: the heald bar of a plurality of rigidity, and every heald bar can be along the reciprocating motion between described upper and lower shed open position of its longitudinal axis; The head that at least one can be swung between the upper and lower position corresponding to described upper and lower shed open position, this head has for each heald bar can select the engagement device that drives, when the swing of described head when a route that crosses the heald bar longitudinal axis carries out, engagement device during each drives can move so that be connected to this heald bar on this head and this heald bar is moved to one of described position to corresponding heald bar, it is characterized in that, each head comprises a plurality of elongated thread-carriers that are used for driving engagement device, described elongated cable guiding device is arranged to and makes it along described course extending longitudinally, one set of bond device is installed on each thread-carrier, they are mounted to along the length of thread-carrier and become an in line stretching, extension, this in line axis that favours described heald bar makes in described engagement device adjacent in line and adjacent heald bar co-operation.

Various aspects of the present invention are described with reference to the accompanying drawings, wherein:

Fig. 1 is the schematic diagram of a heald control system according to an embodiment of the invention,

Fig. 2 is the more detailed side view of the part of a heald control system according to another embodiment of the invention,

Fig. 3 is a decomposition diagram having represented a part embodiment illustrated in fig. 2,

Fig. 4 be one by an axial cutaway view according to first engagement device of the present invention,

Fig. 5 is the schematic diagram of the position relation between an expression heald bar and the needle latch drive unit,

Fig. 6 is an axial section that is similar to Fig. 4 according to second engagement device of the present invention,

Fig. 7 is a diagrammatic front view with thread-carrier of engagement device shown in Figure 6,

Fig. 8 is the schematic side-view of the 3rd engagement device according to the present invention.

At first, the figure shows a harness eye 10, harness eye 10 has been connected on the heald bar or pin 11 of a unbending relatively or rigidity by a jockey 13 with reference to Fig. 1.Jockey 13 can be the combining or also can be the connector of a rigidity of flexibility of a weak point, for example is an extension of bar 11.The rigidity of bar 11 should make by head 30 can barres 11 from a upper/lower positions LP move to one go up position UP and on this position UP shift this upper/lower positions LP onto.This motion of bar 11 makes this harness eye move between this lower and upper shed open position LS, US respectively.

Combining if this jockey 13 is flexibilities, be appreciated that this is combined can be a single cord that is connected to a single harness eye 10, perhaps also can be a plurality of cords that are connected to one group of harness eye.

A pair of head 30 preferably is set, this a pair of head acts on separately the heald bar 11 so that draw or push away this heald bar 11 between upper and lower position UP, LP with 180 ° of phase phasic differences, makes might save common belt and pulley is combined system and short combining is provided.

The bottom of harness eye 10 is connected on the bias unit 15, and this bias unit 15 is a spring 16 preferably.If be the device 13 that is rigidly connected, the purpose of this bias unit 15 provide slight tension force supporting harness eye 10 so that in the wefting insertion process harness eye 10 be unlikely to crooked; This is not will provide power so that this harness eye turns back to its lower shed position LS.If the jockey 13 of a softness, when being necessary to adopt the little bigger bias force of pin position UP shifting its upper/lower positions LP onto from it harness eye 10 with box lunch can with the as one man mobile harness eye 10 of the motion of bar 11.Yet,, do not have the inertia that causes by such system owing to saved common belt and pulley system.Therefore, no matter rigidity or soft connector 13 are compared relative wanting gently by the load that bias unit 15 is applied with the normal load that adopts of conventional harness cord.

In an example shown, determine lower shed position LS by a heald bar that engages with a fixing baffle plate 11 and preferably provide one can selective driving engagement device 20 engagement devices 20 be usually located near the baffle plate 18 in case with the lower bond of bar 11.Yet, be appreciated that engagement device 20 can be positioned at any position easily along bar 11 length in order to engage with bar 11.Engagement device 20 is installed regularly and is comprised a needle latch parts (not shown), and these needle latch parts engage with heald bar 11 when being in extended position, and this needle latch leaves this heald bar 11 when being in advanced position.

Therefore, when wanting to make heald bar 11 remain on its lower shed position LP so that weaving, drive engagement device 20 so that its needle latch parts engage with heald bar 11 so that heald bar is remained on lower shed position LS.Consider this point, bias unit 15 can be relatively weak, because it needn't provide enough loads baffle plate 18 to keep heald bar 11 cards.

Best, each head 30 exists with the form of active unit 31, and this active unit 31 is swung between position UP on and a upper/lower positions LP.

Each unit 31 carries a bar engagement device 33, when this bar engagement device 33 is on it position UP or upper/lower positions LP, in order to engage and respectively bar 11 to be moved to its upper/lower positions LP with bar 11 or going up position UP, can drive this bar engagement device 33 selectively.Before engagement device 33 engages, make its unstick 11 so that this bar 11 can be moved by an engagement device 33 thereby drive engagement device 20.

When engagement device 33 has arrived on it position UP, engage this bar and this bar 11 is remained on position on this by driving engagement device 20, this position is corresponding to the top shed position.In addition, an additional engagement device 20 ' so that barre 11 remains on position UP on it can be set above engagement device 20.Drive engagement device 20 or 20 ' afterwards, drive engagement device 33 immediately and leave this bar and thereby continuous active unit 31 is moved to upper/lower positions LP remaining on position UP on it for barre 11.

In above example, heald bar be in usually its upper/lower positions place and thereby head be positioned at the top of harness eye.Be understood that heald bar usually can position disposed thereon and can be arranged on head 30 below of harness eye.

Referring now to Fig. 2 to Fig. 6 a more detailed embodiment of the present invention is described.

The end that has shown a pair of active unit 31 in Fig. 3, each unit 31 comprises a steady arm 35, has hung a series of thread-carriers 36 from steady arm 35.Arrangement drives each steady arm 35 by the drive unit (not shown) between last position UP and a upper/lower positions LP.The steady arm 35 of two unit 31 of expression is in position on it in Fig. 3.Yet, can be in operating process with 180 ° phase difference drive rod 35, make that bar 35 of another unit can be in its upper/lower positions LP when bar 35 when a unit was in position UP on it.

Each carrier 36 comprises a main body 37, and one group of engagement device 33 that is provided with a straight line is installed on this main body 37.In an illustrated embodiment, 6 engagement devices are arranged in every group.In every group, can have greater or less than 6 engagement devices 33 if necessary.With a connecting rod 39 each main body 37 is connected on the steady arm 35.In Fig. 3, most of thread-carriers 36 have for the sake of clarity been omitted; By hole 40 indication connecting rod is connected to position on the bar.

Each main body 37 is elongated and has relative sidewall, these sidewalls have been determined a upper vertical part 37a and a lower vertical part 37b, the main part 37c of the inclination of a centre is between the two, and this main part 37c tends to vertical direction.Every group engagement device 33 along mid portion 37c longitudinally-spaced and thereby the arrangement that constitutes every group engagement device 33 also tend to vertical direction.The sidewall that is parallel to the main part 37c that determines to tilt.

Thereby the horizontal interval between the center of adjacent engagement device can be less than the size of engagement device 33.In the horizontal interval between the center of adjacent engagement device 33 corresponding to the interval between the vertical-path of the stroke of adjacent heald bar 11.Main part 37 arrange like this to make the side with contacts side surfaces (expression in Fig. 3) and can guarantee like this to obtain between a set of bond device 33 and adjacent set engagement device 33 the horizontal interval and also in use this interval can keep.

As shown in Figure 4, each engagement device 33 comprises needle latch parts 60, these needle latch parts 60 are slidably mounted in the thread-carrier main body 37 and can stretch out at one, mobile between position that engages (at this moment needle latch parts 60 stretch out the thread-carrier main body engages) and a position retraction, that leave (at this moment needle latch parts 60 are positioned at main body 37, make needle latch parts 60 and heald bar 11 separate and break away from) with a recess 62 that is formed on the corresponding heald bar 11.

In Fig. 4, needle latch parts 60 comprise that can be placed in the annular solid 61 in the hole 64 slidably, and this annular solid 61 has and axially is installed in the relatively little pin of one of them diameter 63 so that engage with heald bar 11.Best, annular solid 61 is permanent magnets.

For stretch out at it and advanced position between mobile needle latch, at the upper and lower position UP of bar 11, the LP place is provided with the

assembly

75,76 of two solenoids 70 so that cooperate with each active unit 31.Thereby the last assembly 75 of the solenoid 70 that is provided with when needle latch 60 is in the last position of bar 35 is used for driving needle latch 60, and the following assembly 76 of the solenoid 70 that is provided with when needle latch 60 is in the upper/lower positions of bar 35 is used for driving needle latch 60.The solenoid 70 of each assembly comprises a coil 72 around a soft iron core 73, and these solenoids 70 are installed on the mounting 74 that shape is similar to main body 37 in groups.The mounting 74 of last assembly 75 is supported and is connected on the steady arm 77 by connecting rod 78 by a steady arm 77; The mounting 74 of following assembly 76 is supported and is connected on the steady arm 79 by connecting rod 80 by a steady arm 79.

The adjacent mounting 74 of each

assembly

75,76 respectively in a similar manner together esting to adjacent thread-carrier 36, this just makes when bar 35 thereon when position UP or upper/lower positions LP, and each needle latch 60 separately is adjacent to being in respectively or one of

time assembly

75,76 separately solenoid 70 place accordingly.This point is further diagram demonstration in Fig. 5, and wherein every vertical line is represented a bar 11.As can be seen from Figure 5 bar 11 is separated by closely.

Preferably

barre

77,79 be installed to (not shown) on the loom frame slidably so that can change perpendicular separation between

bar

77,79 and/or orientation so that carry out the shed open adjustment.Because the sliding-contact between the sliding surface 70c of the inclination of mounting 70, can obtain the orientation adjustment between the

bar

77,79 and do not influence horizontal interval between adjacent solenoid 70.

On stroke or upper/lower positions, the solenoid that excitation is selected.If a needle latch is stretched out, encourage this solenoid to repel magnet 61 with a short electric pulse; If make this needle latch move to its advanced position, encourage this solenoid to attract this magnet with a short electric pulse.In either case, because making a concerted effort of an electromagnet and a permanent magnet sold 63 and moved another position from a position rigidly in excitation solenoid process.

After having triggered solenoid, by the magnetic material of the main body 37 that is arranged in 64 ends, hole or by the magnetic attraction of heald bar 11, annular solid 61 remains on its extended position to pin 63, but and the magnetic attraction of an insert 80 of making by a magnetic attraction material that is inserted in the main body 37, annular solid 61 remains on its advanced position to pin 63.

In Fig. 6 and Fig. 7, represented another needle latch, wherein be installed in an end and have a magnet 68 on pin 63 the elastic rod 69 and replace the magnet 61 of a slip to engage that bar 69 is fixed on the relative end 69a on the main body 37 with heald bar 11 with one.

Fig. 8 has also represented another needle latch.The needle latch parts are pin this pin 63 of form of 63 and are placed in slidably in the hole 64 in the thread-carrier main body 37 in Fig. 8.One end of pin 63 is connected to an end of a piezoelectric patches 90.The opposite end 91 of piezoelectric patches is fixed on the main body 37.This sheet is that a laminated construction makes the voltage be applied on the sheet 90 make sheet 90 along its length transverse curvature, and so can its stretch out and advanced position between moving pin 63.For each single piezoelectric patches 90 is connected on the automatically controlled product, along main body 37 and the suitable in tow electrical connector of steady arm 35.

Claims

One kind be used for single heald bar move to one go up or the lower shed position (this system comprises for US, heald control system LS): the heald bar of a plurality of rigidity, every heald bar can be along the reciprocating motion between described upper and lower shed open position of its longitudinal axis; The head that at least one can be swung between the upper and lower position corresponding to described upper and lower shed open position, this head has for each heald bar can select the engagement device that drives, when the swing of described head when a route that crosses the heald bar longitudinal axis carries out, engagement device during each drives can move so that be connected to this heald bar on this head and this heald bar is moved to one of described position to corresponding heald bar

It is characterized in that,

Each head comprises a plurality of elongated thread-carriers that are used for driving engagement device, described elongated cable guiding device is arranged to and makes it along described course extending longitudinally, one set of bond device is installed on each thread-carrier, they are mounted to along the length of thread-carrier and become an in line stretching, extension, this in line axis that favours described heald bar makes in described engagement device adjacent in line and adjacent heald bar co-operation.
2. heald control system according to claim 1, it is characterized in that, it is provided with a pair of active unit, and each active unit has can select the engagement device that can engage with each single heald bar that drives, and an active unit and another unit are with 180 ° phase difference work.
3. heald control system according to claim 1 or 2, it is characterized in that, the engagement device of each heald bar comprises needle latch parts that are installed in movably on the relevant thread-carrier, but and the drive unit that also is mounted in the electric excitation on the thread-carrier, be used between the primary importance and the second place, moving these needle latch parts, engage with this heald bar at this needle latch of primary importance place, separate with this heald bar at this needle latch of second place place.
4. the heald control system according to claim 3 is characterized in that, but the drive unit of this electric excitation comprises a piezoelectric element.
5. heald control system according to claim 1 or 2, it is characterized in that, the engagement device of each heald bar comprises needle latch parts that are installed in movably on the relevant thread-carrier, but each needle latch parts is moved by the drive unit of electric excitation, but the drive unit of described electric excitation comprise on the electromagnet assembly be used for when heald bar thereon when shed open position (US) and under described needle latch parts co-operation and the electromagnet assembly be used for when heald bar during in its lower shed position (LS) and described needle latch parts co-operation.
6. the heald control system according to claim 5 is characterized in that, each needle latch parts comprises a needle latch body of being made up of a permanent magnet that is slidably mounted in its relevant thread-carrier.
7. the heald control system according to claim 5 is characterized in that, each needle latch parts comprises an elastic rod that a permanent magnet is installed on it.
8. the heald control system according to claim 1 or 2 is characterized in that, the thread-carrier of each active unit hangs on the common steady arm abreast, and each thread-carrier is connected with steady arm by a connecting rod.
9. the heald control system according to claim 1 or 2 is characterized in that, a pair of heald bar is connected on one or more single harness eye so that this harness eye is moved between upper and lower shed open position.
10. the heald control system according to claim 1 or 2 is characterized in that, a single heald bar is connected on the single harness eye so that this harness eye is moved between upper and lower shed open position.
11. heald control system according to claim 10, it is characterized in that the connector between the relevant harness eye of each single heald bar and its should make this heald bar can move this harness eye to one of described this position go up and can shift this harness eye on another of described position onto.
12. heald control system according to claim 1 or 2, it is characterized in that, this heald control system comprises can select the heald bar engagement device that drives, this engagement device is installed to the place, path of contiguous this heald bar stroke statically, so that this heald bar is remained on or the lower shed position, this movable component is disengaged with it simultaneously.