CN1127807A - Shedding control method and apparatus for loom - Google Patents
Shedding control method and apparatus for loom Download PDFInfo
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- CN1127807A CN1127807A CN 95103535 CN95103535A CN1127807A CN 1127807 A CN1127807 A CN 1127807A CN 95103535 CN95103535 CN 95103535 CN 95103535 A CN95103535 A CN 95103535A CN 1127807 A CN1127807 A CN 1127807A
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- power transmission
- transmission shaft
- eccentric disc
- pin member
- disc element
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C1/00—Dobbies
- D03C1/14—Features common to dobbies of different types
- D03C1/16—Arrangements of dobby in relation to loom
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- Textile Engineering (AREA)
- Looms (AREA)
Abstract
A shedding control apparatus of a loom. An eccentric disk 2 is supported on a driving shaft 1 driven by a servo-motor 5 so as to be rotatable relative to the driving shaft 1. Compression coil springs 3, 4 are accommodated within retaining recesses 1a, 1b formed in a peripheral surface of the driving shaft 1, while latch members 6, 7 are slidably mounted in receiving grooves 2a, 2b formed in the eccentric disk 2. A disk-like coupling member 8 supported around the eccentric disk 2 rotatably relative to each other is provided with a pushing lever 9 mounted swingably on the coupling member 8. When an electromagnetic solenoid 12 provided in association with the pushing lever 9 is electrically energized, the latch member is pushed into the retaining recess by the pushing lever 9 against the spring force of the compression spring. Operation of the servo-motor 5 and the electromagnetic solenoid 12 are controlled by a control computer C0.
Description
Present invention generally relates to a kind of loom or loom (loom hereinafter referred to as).More particularly, be that to form the control method of operation of shed open between spun yarn relevant with device in the present invention and the loom.(hereinafter being referred to as shedding control method and opening control device respectively).
The opening control device that is disclosed in Japanese Unexamined Patent Application communique the 30930/1984th and No. 30931/1984 (JP-A-59-30930 and JP-A-59-30931) comprises that one is installed in eccentric cam dish on the power transmission shaft and one aptly and movably and is suitable in coupled position (in this position, eccentric cam dish and power transmission shaft are bound up effectively by the pin member that embeds in the maintenance deep hole of processing on power transmission shaft, so that eccentric cam dish and power transmission shaft associating co-rotation) with disengaging configuration (in this position because pin member disengaging eccentric cam dish from keep deep hole can rotate) with respect to power transmission shaft between the pin member of conversion, wherein transfer motion power from power transmission shaft by eccentric cam dish and dish type, arm shape gusset piece is delivered to a heald frame and makes its lifting/lowering motion.This gusset piece is configured on the eccentric cam dish, also can rotate with respect to the eccentric cam dish round the eccentric cam dish.When heald frame when upper shed or under shed position keep static, pin member is configured in disengaging configuration.When heald frame was moved under shed or upper shed position downward or upward, pin member was moved to coupled position on the other hand.More precisely, when pin member is positioned at above-mentioned coupled position, the eccentric cam dish can be united co-rotation with power transmission shaft, allows dish type arm shape gusset piece to rotate around power transmission shaft, and heald frame produces vertical motion and promptly arrives upper shed or under shed position up or down thus.When pin member is configured in disengaging configuration, the eccentric cam dish not with the power transmission shaft co-rotation, heald frame keeps static in the position of upper shed or under shed thus.With the opening control device (being shed forming device) of the said structure situation for the shedding by dobby control device, a repeat number (circulation of woven fabric tissue) can at random be set, and Fu Za fabric tissue just can be weaved thus.In addition, compare with the shedding by dobby control device, this opening control device can be made in small sizes.
Being the transmission mechanism that is made of the tooth bar that is connected to crank throw by for the transfer motion power of power transmission shaft obtains from the crank shaft of loom.Power transmission shaft revolution moving one changes, and crank shaft rotates twice, and a pinion that is contained on the power transmission shaft meshes with tooth bar.So, alternately conversion of rotation direction along with power transmission shaft, each turn over power transmission shaft of loom rotates 180 degree radians, therefore when rotation direction changes the rotating speed of power transmission shaft with regard to vanishing in this instantaneous (when each power transmission shaft stops), pin member conversion between above-mentioned coupled position and disengaging configuration instantaneously.The rotating speed that must note power transmission shaft in this connection is that zero state only is between momentariness or instantaneous ground.So, can not guarantee that pin member fault-free ground embeds and keep deep hole or from wherein breaking away from.Need not say, unless between power transmission shaft and the eccentric cam dish connect and disengaging reaches to have the reliability or the certainty of height, desired opening cyclic graph can not realized again.
Since this situation, in the opening control device, the opening control cycle figure that requires realization more reliably to need.In order to realize the opening running, in this opening control device, require power transmission shaft to connect with the eccentric cam dish and disengaging.
According to above-mentioned technology status, an object of the present invention is according to needed opening cyclic graph, a shedding control method that can guarantee to form the shed open with height certainty and reliability is provided.
Another object of the present invention is for realizing that said method provides an opening control device.
Because above-mentioned and other purpose, can become clearly as the explanation of front.The present invention is directed to a kind of loom opening control device (being shed forming device), this device comprises a power transmission shaft, one be installed in aptly on the power transmission shaft with respect to the rotating eccentric disc element of power transmission shaft, a pin member that is used for the eccentric disc combination of elements, on power transmission shaft, make at least one and keep deep hole, so that releasably keep pin member.One be used to make pin member in disengaging configuration (allowing power transmission shaft to rotate thus from keeping deep hole to break away from) and coupled position with respect to the eccentric disc element in this position pin member (in this position, pin member is with keeping the deep hole engagement so that the eccentric disc element is united co-rotation with power transmission shaft) between dislocation connect/break away from conversion equipment, an actuating unit, being used for that transfer motion power is delivered to heald frame moves up and down heald frame between first aperture position (as above aperture position) and second aperture position (as: under shed position), with an arm shape connection element aptly rotationally around and be configured on the eccentric disc element, in order that selectively transfer motion power is delivered to actuating unit from power transmission shaft by the eccentric disc element.
In the opening control device of said structure, according to an aspect of the present invention, a kind of shedding control method is provided, be characterized in when pin member between disengaging configuration and coupled position during conversion, power transmission shaft is controlled like this, be the front and back moment that pin member is changed between disengaging configuration and coupled position, the rotating speed of power transmission shaft decelerates to one from rated speed and comprises that rotating speed is zero low-level rotating speed.The control of power transmission shaft rotating speed can realize by the rotating speed of controlling the speed change driving motor of forming the power transmission shaft power source.Eased down at the rotating speed of power transmission shaft under low-level or zero the situation, pin member is imbedded and is kept deep hole or from wherein getting loose.Because the above-mentioned power transmission shaft of mentioning is decelerated or pause, for guaranteeing that pin member has the height certainty and enters/leave and keep deep hole to mesh with disengaging time enough is provided, like this, pin member breaks away from from keep deep hole or gets loose and pin member engagement or embed and keep deep hole can both to have fault ground to realize, therefore, needed opening cyclic graph is implemented with can having pinpoint accuracy and reliability.
According to another aspect of the present invention, provide a kind of opening control device of said structure, this device further provides a variable speed electric motors, particularly and the speed control for control variable speed electric motors, particularly rotating speed of supplying with transfer motion power for power transmission shaft.About this device, heald frame keeps the static time interval controlledly to change in upper shed position and under shed position (promptly being called the composed view between warp thread).In for realization a kind of optimal mode of the present invention, variable speed electric motors, particularly can be made up of the servomotor with speed control, therefore, carries out by computer.
Also has another aspect according to the present invention, a kind of opening control device of said structure is provided, wherein the composition of connection/disengaging conversion equipment is that the circumferencial direction observation as at power transmission shaft of processing in the part of the power transmission shaft face of cylinder has a pair of maintenance deep holes of angle at a distance of 180 degree therebetween, one first pin member radially is bearing on the eccentric disc element position corresponding to the greatest radius of eccentric disc slidably, one second pin member radially is bearing on the eccentric disc element position and the latch switching mechanism corresponding to the short radius of eccentric disc slidably, is used for of first and second pin member and embeds in a pair of maintenance deep hole one and be positioned in opposite directions position with another maintenance deep hole.
According to said apparatus, the maintenance deep hole of processing on power transmission shaft rotates 180 degree radians in the mutual conversion of dislocation place with respect to each turn over of loom.When each turn over of loom, in dislocation place, pin member is changed between coupled position and disengaging configuration, wherein, embed when keeping deep hole when being configured in corresponding to first pin member of eccentric cam dish longest diameter position, cause heald frame or be the direction motion of upper shed position or be the direction motion of under shed position towards the second place towards primary importance, then, embed when keeping deep hole heald frame or towards the direction motion of the second under shed position or towards the direction motion of the first upper shed position when being configured in second pin member corresponding to the short radius position of eccentric cam dish.So by using a pair of pin member, in the height reliability that guarantees its running, the structure of connection/disengaging switching mechanism can be simplified a lot.
According to another aspect of the present invention, the opening control device of a said structure is provided, this device also comprises a rotor that is installed in rotation on each pin member, with an arc-shaped guide rail element along interior column part on the arm shape connection element, when power transmission shaft rotates, embed one of them and keep the rotor of the pin member in the deep hole to roll along track element.
Because this configuration, when eccentric cam dish and power transmission shaft associating co-rotation, be contained in rotor on the pin member rotationally along rolling on the guide rail, can guarantee relative motion reposefully between eccentric cam dish and the arm shape connection element, this is to realizing that needed opening cyclic graph with high accuracy and reliability is very important.
Above-mentioned and other purpose of the present invention, feature and bonus are read as just the following explanation of the most preferred embodiment of example by the reference accompanying drawing, will be more readily understood.
Through following explanation with reference to accompanying drawing, wherein
Fig. 1 is the local front view that disconnects, and expression is according to the loom opening control device of first embodiment of the invention;
Fig. 2 is local front view, the major part of opening control device when being illustrated in solenoid and being in de-energized;
Fig. 3 is the view that is similar to Fig. 2, the major part of opening control device when being illustrated in solenoid and being in on-position;
Fig. 4 represents the speed of resulting servomotor and the diagram of opening cyclic graph;
Fig. 5 represents the exploded view of the opening control device major part of first embodiment according to the invention;
Fig. 6 is local front view, and expression is according to the major part of second embodiment of the invention opening control device when solenoid is in de-energized;
Fig. 7 is the view that is similar to Fig. 6, the major part of opening control device when being illustrated in solenoid and being in on-position;
Fig. 8 is local front view, represents according to third embodiment of the invention the major part of opening control device when solenoid is in de-energized;
Fig. 9 is the view that is similar to Fig. 8, the major part of opening control device when being illustrated in solenoid and being in on-position.
Now, by the reference accompanying drawing, the present invention will be in conjunction with thinking that at present most preferred embodiment does detailed explanation, and wherein same or suitable parts are in addition represented with same lable number.In following explanation, certainly, as " left side ", " right side ", " on ", term the D score, " make progress ", " downwards " and similar term all be speech rather than they are thought the term of qualification easily.
Referring to accompanying drawing 1 to 5, expression embodies first embodiment of the present invention's explanation.Number 1 is represented power transmission shaft, installs and supporting an eccentric disc 2 of making annular in the above, and this dish can rotate with respect to power transmission shaft 1.On the face of cylinder of power transmission shaft 1, have a pair ofly, that is to say therebetween at a distance of 180 degree angles symmetrically in the maintenance deep hole 1a and the 1b of the footpath tee section at power transmission shaft 1 center.In other words, maintenance deep hole 1a and the 1b that is formed on the power transmission shaft 1 opposes along the arrangement of power transmission shaft 1 diametric(al) in line mutually.Keep deep hole 1a and 1b to have respectively the annular flared part 1a of expansion radially outward
1And 1b
1, spiral compression spring 3 and 4 are housed respectively simultaneously therein.Mandatory declaration, in this combination, each spiral compression spring 3 and 4 drift are shorter than the degree of depth that keeps deep hole 1a and 1b.So spiral compression spring 3 and 4 radial outer ends will never stretch out from power transmission shaft 1 and surmount its periphery.Must further specify, power transmission shaft 1 by the servomotor 5 that is installed separately with loom driving motor (not shown) along a direction transmission or rotation.
On the position of the longest and short radius of the one side of eccentric cam dish 2 or side correspondence, be processed into installation groove 2a and the 2b that extends radially outwardly respectively.Especially, groove 2a and 2b being installed processes point-blank along the mutually opposite direction of the diameter of eccentric cam dish 2 and be suitable for latch 6 and 7 and be mounted in it slidably respectively. Rotor 6a and 7a are contained in the end of the radially outermost end of latch 6 and 7 respectively rotationally.Concern in such position rotor 6a and 7a respectively from clipping room groove 2a and 2b to the circumferential surface that radially extends beyond eccentric cam dish 2, unless pin member 6 and 7 is fully to be contained in respectively to keep among deep hole 1a and the 1b.On the other hand, being arranged in the pin member 6 of radially inner side of eccentric cam dish 2 and 7 end is made into taper and keeps deep hole 1a and flared part 1a1 and the 1b1 of 1b on circumference so that be contained in aptly respectively.
As can be seen from Fig. 3, pin member 6 and 7 is suitable for shift-in separately and keeps among deep hole 1a and the 1b, makes the tapered end of pin member enter aptly respectively among the flared part 1a1 and 1b1 that keeps among deep hole 1a and the 1b.Power transmission shaft 1 rotates 180 degree radians each time, and under this state, pin member 6 and 7 can not enter maintenance deep hole 1a and 1b respectively at flared part 1a1 and 1b1 place, and installation groove 2a and 2b are in respectively and the maintenance deep hole 1a position opposite with 1b.On the other hand, be in the state of the flared part that keeps deep hole 1a and 1b aptly in pin member 6 and 7, the elastic force that is applied by spiral compression spring 3 or 4 acts on pin member 6 and 7, and therefore, pin member 6 or 7 is pushed away by elasticity and keeps the direction of deep hole 1a or 1b to move from leaving the second month in a season.
The arm shape gusset piece 8 of the plate-like of an elongation is disposed aptly, is supported and is centered around on the eccentric cam dish 2, so that rotate with respect to the eccentric cam dish.Arc-shaped guide rail 8a and arm shape gusset piece 8 along its in the circumference of column part make integral body and protrude from its side direction.More precisely, arc-shaped guide rail 8a along the inner cylinder face of arm shape gusset piece 8 with the coaxial inner periphery line of the interior circle of arm shape gusset piece 8 on arc ground extend the angle of half approximately.For rotor 6a and 7a easily are supported on the guide rail 8a, make the face that the slips into 8a1 of an inclination and extend to the internal circle edge of arm shape gusset piece 8 obliquely continuously at the end of arc-shaped guide rail 8a.
In addition, push rod 9 a usefulness supporting pin 10 can be swung or be rotatably supported on the arm shape gusset piece 8, and as shown in Figure 1, push rod 9 is moved in the direction of the clock by extension spring 11 resiliency urged.A solenoid 12 is installed on the arm shape gusset piece 8 and combines with push rod 9, so that under the elastic force effect of extension spring 11, forces push rod 9 to abut against on the drive rod 12a of solenoid 12.Represent operating condition in Fig. 2, solenoid 12 cuts off the power supply, and the state of in Fig. 3, representing, solenoid 12 is switched on.So, the state of representing in Fig. 2, the free end of push rod 9 are promptly most advanced and sophisticated to be in the position of leaving eccentric annular cam disc 2 cylindricals, and the state of representing in Fig. 3, and the free end of push rod 9 is promptly most advanced and sophisticated to be in very position near annular cam disc 2 cylindricals of off-centre.
The running of the servomotor of being made up of variable speed electric motors, particularly 5 is suitable for the control of control computer C 0.In more detail, the rotating speed of control computer C 0 control servomotor 5 on the basis of the loom angle position data of carrying by rotatable encoder 26, this rotating encoder 26 is provided with for monitoring loom rotational angle (being the angle position).In addition, the control computer C 0 as the speed-change control device of controlling servomotor 5 rotating speeds also is suitable for controlling according to the opening circular chart program of being worked out the energising/outage of solenoid 12, the institutional framework of this opening circular chart decision woven.
Referring to Fig. 4, curve D is represented the rotation speed change of servomotor 5.Abscissa is the rotational angle θ of loom in the drawings, and ordinate is the velocity of rotation V of loom.Rotating speed normal or regulation is represented with symbol letter V.In addition, curve E1 represents the lifting/lowering motion of heald frame 23 among Fig. 4, and the variation in the heald frame elevating movement that curve E2 represents to be provided respectively by the frame 23 that contracts.Servomotor 5 is controlled by this way by the control computer C 0, supposes that promptly to each turn over servomotor rotating speed of loom once be zero.At servomotor 5 rotating speeds is that zero state occurs in the predetermined angular range (1 to 2) of loom.Give an example in passing, if supposition rotating speed when loom angle position 1 is zero, servomotor 5 slows down from normal speed V.When loom arrived angle position 2, servomotor 5 was accelerated to normal speed V.
As long as the angle position of loom is beyond angular range 1 to 2, servomotor 5 rotates under the control of control computer C 0 continuously.When servomotor 5 rotated, power transmission shaft 1 was in the position relation represented as Fig. 1 with eccentric cam dish 2.More precisely, pin member 7 is configured in binding site.In this position, pin member 7 enters among the deep hole 1b, and pin member 6 then is in from deep hole 1a throws off the position of separating.In the case, heald frame 23 moves to the position of under shed.When loom arrived angle position 1, it was zero that servomotor 5 is decelerated to rotating speed.Under the situation of the rotating speed vanishing of servomotor 5, deep hole 1a and 1b are configured in the position opposite with 2b with groove 2a respectively.In the case, when the opening circular chart programme-control heald frame of being worked out 23 when the under shed position changes to the upper shed position, the control computer C 0 makes solenoid 12 energisings shown in curve E1, is zero corresponding to the rotating speed of indicating servomotor 5.When solenoid 12 outage, push rod 9 overcomes the elastic force that is applied by extension spring 11 and swings from position shown in Figure 2 and become to turn to position shown in Figure 3.Therefore the free end of push rod 9 or most advanced and sophisticated very near the cylindrical of eccentric cam dish 2 causes abutting against on the rotor 6a of pin member 6 as a result.Therefore, push rod 9 promotes pin member 6 and enters and keep deep hole 1a, contacts with rotor 6a simultaneously and keeps pin member 6.Because the impetus of push rod 9, pin member 6 is configured to coupled position, and in this position, pin member 6 is loaded into the circumference flared part 1a1 that keeps deep hole 1a, and supposes the rotor 6a position in the inner cylinder face of arm shape gusset piece 8 basically.Rotating speed at servomotor 5 continues to keep during zero, and having finished is that mobile pin member 6 is pin member 6 breaks away from above-mentioned coupled position from circumference flared part 1a1 running from disengaging configuration.
Put into after the circumference flared part 1a1 that keeps deep hole 1a in pin member 6, when loom reached angle position 2, the control computer C 0 started servomotor 5 and rotates.Because this moment pin member 6 be to be put into to keep in the deep hole 1a, the rotation that combines of eccentric cam dish 2 and power transmission shaft 1.In addition, because in fact rotor 6a is positioned at the round bolt face of arm shape gusset piece 8, when eccentric cam dish 2 rotated with power transmission shaft 1, rotor 6a rolled along the inner cylinder face of arc-shaped guide rail 8a.Thereby power transmission shaft 1 can interosculate to be integral reposefully with eccentric cam dish 2 and rotates.When loom begins to finish one when changeing the beginning from state shown in Figure 2, pin member 6 and 7 is rotated 180 degree angular ranges around power transmission shaft 1, and rotor 6a breaks away from from arc-shaped guide rail 8a as a result.Therefore, under the elastic force effect of spiral compression spring 3, pin member 6 is pushed shifts to pin member 6 from keeping the out-of-gear direction of deep hole 1a.Like this, pin member 6 moves to the disengaging configuration of pin member 6 from keeping deep hole 1a to deviate from from entering the coupled position that keeps deep hole 1a.These cause rotor 6a to be displaced to and exceed outwards protrusion of eccentric cam dish 2 external cylindrical surface warp-wise ground.On the other hand, outwards protrude above under the situation of eccentric cam dish 2 external cylindrical surfaces at rotor 7a, the inclination that causes rotor 7a to be supported on arm shape gusset piece 8 slips on the face 8a1.Like this, power transmission shaft 1 and eccentric cam dish 2 be each other with angle 180 degree corotation, and pin member 6 and 7 the moving terminal point of each corotation therein relative position be converted.When power transmission shaft 1 rotated half way around, the control computer C 0 made the solenoid outage, the result under the effect of extension spring 11, push rod 9 from location restore shown in Figure 3 to position shown in Figure 2.
When being combined into one, power transmission shaft 1 and eccentric cam dish 2 cause arm shape gusset piece 8 to shift to the right when rotating half way around from position shown in Fig. 2.The Mobile Communication that turns right of arm shape gusset piece 8 crosses and comprises fork 13, pedal lever 16, angular lever 19 and 20 and other transmission device be transformed into the ascending motion of heald frame 23.So heald frame 23 moves to the upper shed position from the under shed position.
When a continuous opening circular chart control that is used for heald frame 23 when the upper shed position moves on to the under shed position, working order as previously described, the solenoid energising, therefore pin member 7 moves from itself and the position that keeps deep hole 1b to break away from, and enters the coupled position that keeps among the deep hole 1b to pin member 7.So the moving 180 degree angles of power transmission shaft 1 and eccentric cam dish 2 corotation, and rotor 7a rolls along arc-shaped guide rail 8a inner cylinder face as shown in Figure 3., eccentric cam dish 2 rotation half way arounds, arm shape gusset piece 8 cause heald frame 23 downward aperture position motion left because shifting from position shown in Fig. 3 from the upper shed position.When heald frame 23 motions, promptly when power transmission shaft 1 changeed half way around, solenoid 12 remained on off-position.
When the continuous opening circular chart that is used for heald frame 23 was the same with above-mentioned circular chart, the control computer C 0 kept solenoid 12 to be in off-position.As a result, pin member 6 and 7 still remains on the state that leaves the position.So, eccentric cam dish 2 is prevented from power transmission shaft 1 corotation moving, and this means equally also that arm shape gusset piece 8 and heald frame 23 are the same and still keeps static.
When pin member 6 and 7 is to leave when changing between position and the coupled position, as previously mentioned, the rotating speed of control computer C 0 control servomotor 5, so that producing the period that running changes, promptly in the scope of the angle position 1～2 of loom, the rotating speed vanishing of power transmission shaft 1.As a result, when the rotating speed of power transmission shaft 1 was zero, pin member 6 or 7 entered and keeps deep hole 1a and 1b or from wherein unclamping.During the rotating speed of power transmission shaft 1 is zero, promptly in the scope of loom angle position from 1 to 2, not instantaneous but certain duration is arranged.The result keeps among deep hole 1a or the 1b when pin member 6 and 7 enters, and maintenance deep hole 1a or 1b are arranged to the position in opposite directions with pin member 6 or 7 exactly respectively.So pin member 6 or 7 not entering of error keeps among deep hole 1a or the 1b.On the other hand, when pin member 6 or 7 broke away from from keep deep hole 1a or 1b, the moment of torsion of power transmission shaft 1 must stop latch 6 or 7 is applied effect.Therefore, pin member 6,7 boths are received into installation groove 2a; 2b and maintenance deep hole 1a; The situation and the possibility that are clipped among the 1b between power transmission shaft 1 and the eccentric cam dish 2 are fully realized.So pin member 6:7 can break away from from keep deep hole 1a and 1b with not slipping up.Because pin member 6; 7 positively are put into maintenance deep hole 1a; 1b and the characteristics that break away from therefrom can make power transmission shaft 1 and eccentric cam dish 2 corotation half way arounds also can only make power transmission shaft 1 rotate half way around according to the reliability of opening cyclic graph selectively.The opening cyclic graph with height fidelity is followed in the elevating movement that this means heald frame 23.
As mentioned above, pin member 6 and 7 is in coupled position with leave between the position and change.In this combination, should notice that the position that locational transformation or above-mentioned conversion take place is to be determined by the ad-hoc location that is decided by lever 9 end moving lines, lever 9 constitutes connection/disengaging trnasistion mechanism with solenoid 12 and extension spring 11.Each turn over of loom, power transmission shaft changes half way around, and when each turn over of loom, the maintenance deep hole 1a and the 1b of processing have changed the position with respect to pin member 6 and 7 on power transmission shaft 1.In this combination, when will be understood that the radially the longest part that is configured in eccentric cam dish 2 when first pin member 6 and keeping deep hole 1a or 1b to enter engagement, heald frame 23 moves up, and keep among deep hole 1a or the 1b when second pin member 7 is configured in radially entering during short part of eccentric cam dish 2, heald frame 23 moves down.In addition, under the situation of traditional loom, only provide single element.Therefore need to be equipped with pair of push rods (referring to the depression bar on the device that for example is disclosed on JP-1-59-30930 and the JP-A-59-30931).On the contrary, in the opening control device,, use a pair of pin member 6 and 7 in the present invention according to present embodiment of the present invention, as long as provide a push rod 9 just enough, Here it is connects/leave the advantage that the structure of switching mechanism can be simplified.
In addition, will readily appreciate that, when eccentric cam dish 2 and arm shape gusset piece 8 relatively rotate each other, when getting involved a big resistance therebetween, arm shape gusset piece 8 trends towards along with eccentric cam dish 2 rotates, as a result, the opening of heald frame 23 regularly turns round and finishes and inaccurate, and this means equally that weft yarn embeds and perhaps lost efficacy.Therefore, in order to realize desired opening cyclic graph, relative motion stably is essential between eccentric cam dish 2 and the arm shape gusset piece 8.In this combination, will understand when power transmission shaft 1 and eccentric cam dish 2 and combine corotation when moving, pin member 6 and 7 rotor 6a and 7a go up along arc-shaped guide rail 8a and roll.Because this feature can relatively rotate between eccentric cam dish 2 and the arm shape gusset piece 8 effectively reposefully, therefore can guarantee to obtain the accurate relation of needed opening cyclic graph.
In said apparatus, the rotating speed of servomotor 5 be zero during can shorten to for minimum speed instantaneous or servomotor 5 can alternately be set in one low-level rather than zero so that pin member 6 and 7 can realize in servomotor 5 slow-speed of revolution rather than when servomotor 5 stops at the evolution of coupled situation and disengaged position.Pin member 6 and 7 inner end portion radially is made into taper because keep deep hole 1a and 1b outer end portion radially to be made into radially outer bellmouth, in this case, and pin member 6; 7 with keep deep hole 1a; Even engagement between the 1b and disengaging therebetween are at aforesaid power transmission shaft and keep deep hole 1a; Also can easily realize in the low-speed running of 1b.
Secondly, by reference Fig. 6 and 7, the device with explanation is made with second embodiment of the invention is embodied in second instruction among the embodiment according to the present invention, and arc-shaped guide rail 27 a usefulness supporting pin 28 is bearing on the arm shape gusset piece 8 swingably.Arc-shaped guide rail 27 has the inner cylinder face of the same shape of inner cylinder face part of picture arm shape gusset piece 8 correspondences.Arc-shaped guide rail 27 is being pushed under the effect of extension spring 11A on the drive rod 12a that abuts against solenoid 12A.In addition, the structural behaviour of other of present embodiment is identical with first embodiment.When drive rod 12a was in off-position, as shown in Figure 6, arc-shaped guide rail 27 was in the position of the inner cylinder face that leaves arm shape gusset piece 8.Another aspect, when drive rod 12a was in "on" position, as shown in Figure 7, the inner cylinder face of arc-shaped guide rail 27 was positioned at the position that coincides with arm shape gusset piece 8 inner cylinder faces as additional disclosure.When power transmission shaft 1 did not rotate, drive rod 12a began energising and at driving shaft, cut off the power supply immediately before finishing half way around.
When arc-shaped guide rail 27 is so disposed, the inner cylinder face that is its inner cylinder face and arm shape gusset piece 8 coincides, from the state shown in Fig. 6, the tip of arc-shaped guide rail 27 leans against on the rotor 6a, promote pin member 6 thus and enter maintenance deep hole 1a, thereby pin member 6 changes to coupled position or state from the state that leaves.When power transmission shaft 1 rotated the half way around end, rotor 6a left arc-shaped guide rail 27 from bottom part after rolling along arc-shaped guide rail 27 faces of cylinder, so under the effect of spiral compression spring 3, disengaged position is changed into from coupled situation in the position of pin member 6.At this constantly, along with the inner cylinder face of arc-shaped guide rail 27 from arm shape gusset piece 8 moves, drive rod is cut off electric current.So, after push rod 9 rotated half, the rotor 7a of pin member 7 stopped to lean against on the tip of arc-shaped guide rail 27.
As from the above mentioned, now will understand, under the situation of second embodiment of the present invention, arc-shaped guide rail 27 provides and has guaranteed to realize relative motion stably between eccentric cam dish 2 and arm shape gusset piece 8, so that the effect of also serving as the push rod that can be removed thus.Therefore, additional advantage is that the structure of connection/disengaging switching mechanism can be simplified.
Secondly, by reference Fig. 8 and 9, the 3rd embodiment of the present invention will be described.Be embodied in the 3rd instruction among the embodiment according to the present invention, be bearing in swingably the arc-shaped guide rail 27 on the arm shape gusset piece 8 except having with supporting pin 28, also provide with supporting pin 30 and be contained in second arc-shaped guide rail 29 on the arm shape gusset piece 8 swingably, wherein arc-shaped guide rail 27 and 29 is manufactured into same shape and same size, and be configured on the diametric(al) symmetric arrays therebetween angle differ on the positions in opposite directions of 180 degree.It is just the same with the corresponding arch section of the inner circumferential edge of arm shape gusset piece 8 that arc-shaped guide rail 27 and 29 all has inner cylinder face.Arc-shaped guide rail 27 and 29 is on the supported respectively drive rod 12a and 12b that leans against solenoid 12A and 12B under the effect of extension spring 11A that is associated and 11B.In addition, under the situation of present embodiment, the pin member that only has a usefulness 6 to represent is set at unique of being associated and keeps in the deep hole 1a, and wherein change from keeping the connection disengaged position of deep hole 1a leaving and D pin member 6 to enter between the state among the maintenance deep hole 1a at latch 6 position of pin member 6.Except this structure, present embodiment other structural behaviour with first embodiment the same.
In the running, when solenoid 12A and 12B were de-energized, as shown in Figure 8, arc-shaped guide rail 27 and 29 moved away the inner periphery of arm shape gusset piece 8.On the other hand, as long as solenoid 12A and 12B energising, as shown in Figure 9, arc-shaped guide rail 27 and 29 is so disposed, and inner periphery wherein is concordant with the inner periphery of arm shape gusset piece 8.Say that by the way during power transmission shaft 1 did not rotate, solenoid 12A and 12B began energising, and before power transmission shaft 1 was finished half way around, solenoid 12A and 12B were de-energized immediately.
When arc-shaped guide rail 27 is so placed, it is concordant with the inner periphery of arm shape gusset piece 8 to make its inner cylinder face become, the state of representing from Fig. 8 begins, the tip of arc-shaped guide rail 27 leans against on the rotor 6a, promote pin member 6 thus and enter maintenance deep hole 1a slidably, so the position of pin member 6 is transformed coupled situation from leaving state.When power transmission shaft 1 was finished half way around, rotor 6a left arc-shaped guide rail 27 from bottom part after rolling on the face of cylinder of arc-shaped guide rail 27.So under the effect of spiral compression spring 3, pin member 6 is transformed into the state of leaving from coupled situation.
Must be pointed out that arc-shaped guide rail 27 and 29 provides assurance for relatively rotating smoothly between eccentric cam dish 2 and the arm shape gusset piece 8, under the third embodiment of the invention situation, has also played the effect of push rod.
Use a kind of speed change driving motor according to the present invention for the opening control device, the angular speed cyclic graph of power transmission shaft 1 can have the variation of high-freedom degree.Therefore, when heald frame 23 is maintained at the variation that can have high-freedom degree period (be appellation warp thread in the middle of composed view) of under shed position or upper shed position, mean that the composed view in the middle of the warp thread can easily determine to guarantee to satisfy the feel of weft yarn embedding and needed woven.
As mentioned above, obviously, for such structure, when pin member when disengaging configuration changes to coupled position, the rotating speed of power transmission shaft is decelerated to low speed or zero from rated speed, realize that without barrier the pin member insertion keeps deep hole and pin member from wherein breaking away from, and therefore, connects and breaks away from and can be realized highly reliably between power transmission shaft and eccentric cam dish.So required opening cyclic graph can be realized accurately.
In addition, because the rotating speed of speed change driving motor can be controlled with speed control unit, composed view can easily be changed in the middle of the warp thread.
In addition, because the conversion of connection/disengaging quilt so mechanism is realized, first or second pin member in the two is configured in and keeps deep hole to carry out position engaged, select pin member and keep the deep hole engagement, can realize that switching mechanism then can be finished by the structure of a simplification separately with an independent switching mechanism.
In addition, be suitable for along rolling on the guide rail owing to be installed in the structure of the rotor on the pin member, the relative motion between eccentric cam dish and cam follower gusset piece can realize reposefully, can guarantee that therefore the opening cyclic graph of needs is realized exactly.
It seems that from detailed explanation many feature and advantage of the present invention are significantly, and want to cover all feature and advantage of the device that belongs to the correct spirit and scope of the present invention by additional claim.In addition, because to this area professional, can carry out many improvement and combination at an easy rate, the present invention is not limited to diagram and description, illustrated and accurate structure and the running introduced.So improvement that all are fit to and suitable mechanism all belong to the spirit and scope of the present invention.
Claims (13)
1. in loom opening control device, comprise a power transmission shaft, an eccentric disc element is installed on the described power transmission shaft aptly so that with respect to described power transmission shaft transmission, bolt device keeps connecting with described eccentric disc element, holding device maintenance and described propeller shaft couplings are so that keep described bolt device separably, connection/disengaging conversion equipment is that (described bolt device breaks away from from described holding device described bolt device in this position at disengaging configuration, therefore allow described power transmission shaft to relatively rotate with respect to described eccentric disc element) with coupled position (in this position, described bolt device and the engagement of described holding device, therefore described eccentric disc element is united co-rotation with described power transmission shaft) between dislocation, actuating unit is that transferring power moves up and down described heald frame to heald frame between first aperture position and second aperture position, and for the transmission mechanism by described eccentric disc element changes transfer motion power from described power transmission shaft selectively to described actuating unit, around described eccentric disc element a connection element has been installed aptly, a kind of shedding control method comprises improvement wherein:
When described signature pin assembly is changed between described disengaging configuration and described coupled position, described power transmission shaft is controlled like this, promptly before speed change and the period of finishing to the moment that described bolt device is changed between described disengaging configuration and coupled position, the rotating speed of described power transmission shaft comprises that from rated speed to a rotating speed is zero low-level rotating speed.
2. loom opening control device is characterized in that comprising:
A power transmission shaft;
One be contained in aptly on the described power transmission shaft so that the eccentric disc element that rotates with respect to described power transmission shaft;
The pin member that connects with described eccentric disc element is provided;
Provide the holding device with described propeller shaft couplings, so that can hold described bolt device publicly;
Connection/disengaging conversion equipment be described bolt device at disengaging configuration (in this position, described bolt device breaks away from from described holding device, therefore allow described power transmission shaft to rotate with respect to described eccentric disc element) and coupled position (in this position, the engagement of described bolt device and described holding device, therefore described eccentric disc element is united co-rotation with described power transmission shaft) between dislocation;
Actuating unit makes described heald frame move up and down between first aperture position and second aperture position for transmitting driving power to heald frame thus;
Around described eccentric disc element a connection element is installed aptly, in order to give described power with described transmission of power selectively.Conveyer;
One is the variable speed drive motor that described power transmission shaft is supplied with transfer motion power;
For controlling the control device of described variable speed drive motor rotating speed, make the front and back that described bolt device is changed between disengaging configuration and coupled position, the rotating speed of described power transmission shaft decelerate to one and comprise that rotating speed is zero low-level rotating speed from rated speed.
3. opening control device as claimed in claim 2, it is characterized in that described holding device comprises a pair of maintenance deep hole of the periphery part that is manufactured on described power transmission shaft, along described power transmission shaft circumferencial direction above-mentioned two keep between the deep holes at a distance of 180 angles, described bolt device comprises a pair of pin member that is configured on the described eccentric disc element side, and its position opposite is corresponding with the long and the shortest radius of described eccentric disc element respectively.
4. opening control device as claimed in claim 2 is characterized in that described connection/disengaging conversion equipment comprises:
The a pair of maintenance deep hole of processing on the periphery part of described power transmission shaft keeps between the deep hole at a distance of 180 degree angles along the circumferencial direction of described power transmission shaft described two;
First pin member radially is bearing on the described eccentric disc element slidably, is in the position corresponding to described eccentric disc element greatest radius;
Second pin member radially is bearing on the described eccentric disc element slidably, is in the position corresponding to the short radius of described eccentric disc element;
Latch trnasistion mechanism is used for of embedding in the described a pair of maintenance deep hole with described first and second pin member, and is positioned in opposite directions position with another described maintenance deep hole.
5. the opening control device described in claim 4 is characterized in that, also comprises: the rotor that is installed in rotation on described each pin member; Be arranged on arc-shaped guide rail element on the described connection element with one along column part in it, when described power transmission shaft rotates, wherein, insert described one and keep the rotor of the pin member in the deep hole on described track element, to roll along guide rail.
6. opening control device as claimed in claim 5, it is characterized in that described guide rail and described connection element are an integral body, guide rail surpasses half of cylinder in the described connection element basically and axially stretches away at it, and one of them end that is fabricated in described guide rail for the face that slips into that guides the inclination of described rotor to the described guide rail also extends to the interior column part of described connection element continuously.
7. the opening control device described in claim 4, it is characterized in that described each keep deep hole to have the end of an outside enlarging, and wherein each described pin member has a radially inner conical part described maintenance deep hole flared end of packing into aptly.
8. opening control device as claimed in claim 5 is characterized in that described pin member switching mechanism comprises:
A push rod is rotatably supported on the described connection element with the supporting pin;
An extension spring promotes described push rod on the direction of leaving described eccentric disc element;
Electromagnetic spool device is used for overcoming the elastic force that described extension spring applies and promotes the direction of described push rod towards described eccentric disc element when the energising of described electromagnetic spool device, described push rod is leaned against on the described rotor.
9. the opening control device described in claim 8 is characterized in that described variable speed electric motors, particularly is made up of servomotor and the described speed control unit that is made of the control computer.
10. opening control device as claimed in claim 9, it is characterized in that described control computer connects with described servomotor and described electromagnetic spool device works, on basis, program and control the rotating speed of described servomotor by the rotary encoder output variable-angle position data that guarantees the described loom of monitoring angle position, and according to described electromagnetic spool device energising of the opening circular chart programme-control of the needed woven tissue of expression and outage.
11. the opening control device described in claim 5, described arc-shaped guide rail is rotatably supported on the described connection element, and wherein said pin member switching mechanism comprises: one for to leave the extension spring that described eccentric disc component orientation promotes described guide rail; And when the energising of described solenoid, overcome elastic force that described extension spring applies and promote the electromagnetic spool device of described guide rail towards the direction of eccentric disc element, described guide rail is leaned against on the described rotor.
12. a loom opening control device is characterized in that comprising:
A power transmission shaft;
An eccentric disc element is installed on the described power transmission shaft aptly so that rotate with respect to described power transmission shaft;
A bolt device keeps connecting with described eccentric disc element;
A holding device is processed on described power transmission shaft so that releasably hold described pin member;
Connection/disengaging conversion equipment be described bolt device at disengaging configuration (in this position, described bolt device breaks away from from described holding device, therefore allow described power transmission shaft to rotate with respect to described eccentric disc element) with coupled position (in described bolt device in this position and the engagement of described holding device, so described eccentric disc element and described power transmission shaft are united co-rotation) between dislocation;
Actuating unit is used for transferring power to heald frame, and described heald frame is moved up and down between first aperture position and second aperture position;
A connection element is installed aptly in order to give described power transmission with described transmission of power selectively around described eccentric disc element.
One is the variable speed drive motor that described power transmission shaft is supplied with transfer motion power;
For controlling the control device of described variable speed drive motor rotating speed;
A pair of arc-shaped guide rail along the configuration of the inner cylinder face of described connection element and mutually away from end separately be rotatably supported on it;
Provide a pair of extension spring to combine with described pair of guide rails; Be used for promoting guide rail from the direction of leaving described eccentric disc element;
Provide a pair of electromagnetic spool device to combine respectively with described pair of guide rails, when coil electricity in parallel in the described electromagnetic spool device, the elastic force that makes described pair of guide rails overcome described extension spring respectively moves so that each described guide rail is abutted against on the described pin member towards described eccentric disc component orientation.
13. opening control device as claimed in claim 12, it is characterized in that described pair of guide rails is same shape and same size and is configured in the symmetric position that the mutual angle of described eccentric disc element circumferencial direction is 180 degree, in fact each described guide rail has and the inner surface of the arc of the same shape of described connection element inner cylinder face.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP057804/94 | 1994-03-28 | ||
| JP5780494A JPH07268742A (en) | 1994-03-28 | 1994-03-28 | Method for opening in weaving machine and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1127807A true CN1127807A (en) | 1996-07-31 |
Family
ID=13066111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95103535 Pending CN1127807A (en) | 1994-03-28 | 1995-03-25 | Shedding control method and apparatus for loom |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0675218A1 (en) |
| JP (1) | JPH07268742A (en) |
| KR (1) | KR960012834B1 (en) |
| CN (1) | CN1127807A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457827C (en) * | 2003-03-12 | 2009-02-04 | 必佳乐有限公司 | Supporting structure for a shedding system in a mechanical weaving loom |
| CN1834318B (en) * | 2005-03-07 | 2010-12-08 | 格罗兹-贝克特公司 | Loom heald frame transmission device |
| CN1774532B (en) * | 2003-04-17 | 2011-04-06 | 必佳乐有限公司 | Drive for heald frames of a loom |
| CN1774530B (en) * | 2003-04-17 | 2011-08-03 | 必佳乐有限公司 | Drive for heald frames of a loom |
| CN107923078A (en) * | 2015-08-26 | 2018-04-17 | 必佳乐公司 | For driving the driving mechanism of weaving loom heald frame |
| CN108930083A (en) * | 2018-09-18 | 2018-12-04 | 山东日发纺织机械有限公司 | A kind of actuating unit of the waste selvage yarn shedding mechanism of water-jet loom |
| CN115478348A (en) * | 2022-09-13 | 2022-12-16 | 苏州汇川控制技术有限公司 | Loom control method, device, equipment and computer readable storage medium |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000507310A (en) * | 1996-02-28 | 2000-06-13 | クライナー、エルンスト | Coupling device for loom and dobby having coupling device |
| BE1011281A3 (en) * | 1997-07-14 | 1999-07-06 | Picanol Nv | DRIVE SYSTEM FOR A WEAVING FRAME OF A WEAVING MACHINE. |
| KR20020021447A (en) * | 2000-09-15 | 2002-03-21 | 서일부 | Motion device for the opening of dobby loom |
| DE10318811A1 (en) * | 2003-04-17 | 2004-11-04 | Picanol N.V. | Drive for heald frames of a weaving machine |
| CN102912504A (en) * | 2012-10-22 | 2013-02-06 | 江苏万工科技集团有限公司 | Flat opening mechanism with moving pair |
| CN104328565A (en) * | 2014-10-22 | 2015-02-04 | 杭州创兴织造设备科技有限公司 | Shedding device based on servo motor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH407899A (en) * | 1964-01-21 | 1966-02-15 | Staeubli Geb & Co | Shedding device for looms |
| DE3027402A1 (en) * | 1980-07-19 | 1982-03-04 | Johann Kaiser Gmbh & Co Kg Maschinenfabrik Und Eisengiesserei, 8580 Bayreuth | Loom shed drive - has gearing with cam to give stop to output shaft once per rotation |
| JPS5930931A (en) * | 1982-08-09 | 1984-02-18 | 株式会社豊田自動織機製作所 | Opening apparatus in loom |
| DE8710997U1 (en) * | 1987-08-12 | 1987-11-26 | Emil Jaeger Gmbh & Co Kg, 4400 Muenster, De | |
| IT1246701B (en) * | 1990-07-11 | 1994-11-26 | Nuovopignone Ind Meccaniche Ef | IMPROVED CONTROL DEVICE FOR HIGH SPEED ROTARY DOBBIES |
| JP3242123B2 (en) * | 1991-05-13 | 2001-12-25 | 津田駒工業株式会社 | Loom shedding control device |
| JPH0657576A (en) * | 1992-08-07 | 1994-03-01 | Toyota Autom Loom Works Ltd | Shedding mechanism for loom |
-
1994
- 1994-03-28 JP JP5780494A patent/JPH07268742A/en active Pending
-
1995
- 1995-03-01 EP EP95400437A patent/EP0675218A1/en not_active Withdrawn
- 1995-03-25 CN CN 95103535 patent/CN1127807A/en active Pending
- 1995-03-27 KR KR1019950006505A patent/KR960012834B1/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457827C (en) * | 2003-03-12 | 2009-02-04 | 必佳乐有限公司 | Supporting structure for a shedding system in a mechanical weaving loom |
| CN1774532B (en) * | 2003-04-17 | 2011-04-06 | 必佳乐有限公司 | Drive for heald frames of a loom |
| CN1774530B (en) * | 2003-04-17 | 2011-08-03 | 必佳乐有限公司 | Drive for heald frames of a loom |
| CN1834318B (en) * | 2005-03-07 | 2010-12-08 | 格罗兹-贝克特公司 | Loom heald frame transmission device |
| CN107923078A (en) * | 2015-08-26 | 2018-04-17 | 必佳乐公司 | For driving the driving mechanism of weaving loom heald frame |
| US10501872B2 (en) | 2015-08-26 | 2019-12-10 | Picanol | Drive mechanism for driving a heald frame of a weaving machine |
| CN108930083A (en) * | 2018-09-18 | 2018-12-04 | 山东日发纺织机械有限公司 | A kind of actuating unit of the waste selvage yarn shedding mechanism of water-jet loom |
| CN115478348A (en) * | 2022-09-13 | 2022-12-16 | 苏州汇川控制技术有限公司 | Loom control method, device, equipment and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07268742A (en) | 1995-10-17 |
| EP0675218A1 (en) | 1995-10-04 |
| KR960012834B1 (en) | 1996-09-24 |
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