CN1922349B - Weft tension device for jet looms - Google Patents
Weft tension device for jet looms Download PDFInfo
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- CN1922349B CN1922349B CN200580005346XA CN200580005346A CN1922349B CN 1922349 B CN1922349 B CN 1922349B CN 200580005346X A CN200580005346X A CN 200580005346XA CN 200580005346 A CN200580005346 A CN 200580005346A CN 1922349 B CN1922349 B CN 1922349B
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- stretch nozzle
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- nozzle
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
- D03D47/3066—Control or handling of the weft at or after arrival
- D03D47/308—Stretching or holding the weft
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- Textile Engineering (AREA)
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Abstract
Disposed on the back of a modified reed (12) forming a weft guide passage (121) is a nozzle forming body (31) provided with a stretch nozzle (312). A passage forming body (39) provided with a weft arrest passage (38) is disposed in front of the modified reed (12). The position where the passage forming body (39) is disposed can be changed along the guide passage (121). At least a part of the arrest passage (38) extends in a direction intersecting the direction of extension of the guide passage (121). The weft tension device thus arranged can cope with changes in woven width without incurring degradation of fabric quality and can impart sufficient tension to the weft.
Description
Technical field
The present invention relates to utilize picking with the air flow jetting effect of nozzle with the air-jet loom of parallel along the path of navigation picking, particularly relate to and have the air-jet loom that the air-flow that utilizes stretch nozzle to spray imports said parallel the weft tension applicator of catching in the stretch nozzle.
Background technology
In air-jet loom, be to utilize picking from parallel long measuring storing device, to extract parallel out to carry out picking with the air flow jetting effect of nozzle.When from parallel long measuring storing device, extracting parallel out, be to extract control out according to the requirement of carrying out picking with the parallel that carries out a picking Len req.That is, parallel long measuring storing device can switch between the state that state that parallel can be extracted out and parallel can not be extracted out.Switch to parallel at parallel long measuring storing device and can not extract the extraction of state thereby parallel out when being prevented from, carry out picking with the parallel that carries out a picking Len req.When the extraction of parallel is subjected to stoping, can on the parallel of flight, produce from the tensile wave of parallel long measuring storing device one side direction parallel front end fluctuation.This tensile wave returns to the opposite direction of parallel direct of travel behind the front end that arrives parallel.
Beginning postflight parallel can temporary transient coefficient of stretching under with the effect of the inertia force of the air flow jetting active force of nozzle and parallel percentage point in picking.Also can lax the shake be taken place because of the tension force wave propagation afterwards.If often take place to beat up under the lax state at this parallel, will cause the tension force of parallel different on the position, the left and right sides of fabric, fabric quality is reduced.
In patent documentation 3,4 disclosed devices, nozzle is set and the seizure pipe is set in the back side of reed one side in the front of reed one side.The air-flow of nozzle ejection is horizontally through to be blown into behind the parallel path of navigation of front one side of reed and catches in the pipe, and the leading section of the parallel that flies in path of navigation is imported into along with being blown into of this air-flow catches in the pipe.Thus, utilize air-flow to make the leading section of parallel crooked and it is captured catch in the pipe, make parallel obtain tension force.
In patent documentation 5 disclosed devices, in the parallel path of navigation of the front that is formed at reed, assembled air ejector.The leading section of the parallel that flies in path of navigation enters the effect that is subjected to air-flow in the air ejector.
But, in patent documentation 1,2 disclosed devices, need the weft tension applicator be installed seeing over the position of the terminal side of the picking that overlaps with reed from the picking direction.Therefore, when weaving width, the end of the reed of the terminal side of picking must be cut off and the length overall of reed is shortened or make the length lengthening of discarded selvedge than the short fabric of the length of reed on the picking direction.If the length overall of reed is shortened, then to weave width be in the time of can carrying out woven fabric before reed cuts off for weaving out, must change length and cut off the identical new reed of reed before.If make the length lengthening of discarded selvedge, then unavoidably will cause the waste of parallel.
In patent documentation 3,4 disclosed devices, catch the installation site of pipe on the bearing of trend of path of navigation owing to can change, thereby the existing problem of device of patent documentation 1,2 can not take place.But, can enter into the seizure pipe at the back side that is arranged on reed sleekly in order to make parallel, a pair of insertion pin that is installed in the seizure pipe is got between the reed wire to form the slit-shaped gap.Employing makes to insert sells the structure of clamp-oning between the reed wire, might cause the fixed part that reed wire is fixed down from it being deformed and becoming flexible.The distortion at junction surface is loosening, will make reed wire can't keep at interval conventional at interval.Weave in the width range if can't keep conventional reed wire at interval to be used in, then can near the fabric the not maintenance routine reed wire at interval, produce the vertical stripe (through willow) that extends along warp direction, fabric quality is significantly reduced.
In patent documentation 5 disclosed devices, the leading section that enters into the parallel of air ejector is that linear state is captured, thereby can't obtain enough tension force.
Patent documentation 1: special public clear 57-17982 communique
Patent documentation 2: the spy opens flat 10-204752 communique
Patent documentation 3: open clear 60-63580 communique in fact
Patent documentation 4: open flat 2-115583 communique in fact
Patent documentation 5: special public clear 58-38544 communique
Disclosure of an invention
The task of invention
The objective of the invention is, provide a kind of can under the situation that fabric quality does not reduce, the change to weave width, and can give the weft tension applicator of parallel with enough tension force.
Realize the technical scheme of invention task
For achieving the above object, the invention provides a kind of utilize picking with the air flow jetting effect of nozzle with parallel in the air-jet loom of path of navigation picking, have the passage forming body that forms stretch nozzle and stretch nozzle, utilize for said parallel being captured in the said stretch nozzle from the air-flow of said stretch nozzle ejection parallel imported weft tension applicator in the stretch nozzle.Said passage forming body is arranged on front one side of said path of navigation, and it is provided with the position and can changes along said path of navigation.At least a portion of said stretch nozzle is extended on the direction that the bearing of trend with said path of navigation intersects.
The leading section that is imported into the parallel in the stretch nozzle is crooked shape and is caught in the stretch nozzle.Utilize air-flow to make the parallel leading section be curved shape and to its structure of catching, can make parallel obtain enough tension force.Passage forming body with stretch nozzle is positioned at front one side of path of navigation, thus the existing apparatus that does not need parallel to be imported in catching pipe after pass through between the adjacent reed wire as parallel with the interval expansion of reed wire.Therefore, do not exist interval to enlarge the problem that causes fabric damage with reed wire.In addition, owing to can change the position that is provided with of passage forming body along path of navigation, thereby can tackle the different width of weaving.
Brief description of drawings
Fig. 1 (a) is the stereogram with air-jet loom of the related weft tension applicator of the present invention's the 1st form of implementation, and Fig. 1 (b) is the amplification stereogram of keypoint part of the weft tension applicator of Fig. 1 (a).
Fig. 2 is the vertical view cutaway drawing of the air-jet loom of Fig. 1 (a).
Fig. 3 (a) is the side view cutaway drawing of the weft tension applicator of Fig. 1 (a), and Fig. 3 (b) is the side view cutaway drawing of keypoint part of the weft tension applicator of Fig. 3 (a).
Fig. 4 is the vertical view cutaway drawing that the state of beating up of the air-jet loom of Fig. 2 is showed.
Fig. 5 is a curve map of showing the variation of the frictional force between parallel and the passage forming body.
Fig. 6 is the stereogram of the keypoint part of the related weft tension applicator of the present invention's the 2nd form of implementation.
Fig. 7 is the vertical view cutaway drawing of the weft tension applicator of Fig. 6.
Fig. 8 (a) is the vertical view cutaway drawing of the related weft tension applicator of the present invention's the 3rd form of implementation, the side view cutaway drawing of the weft tension applicator of Fig. 8 (b) Fig. 8 (a).
Fig. 9 is the vertical view cutaway drawing of the related weft tension applicator of the present invention's the 4th form of implementation.
Figure 10 is the vertical view cutaway drawing of the related weft tension applicator of the present invention's the 5th form of implementation.
Figure 11 is the side view cutaway drawing of the related weft tension applicator of the present invention's the 6th form of implementation.
Figure 12 is the stereogram of the keypoint part of the related weft tension applicator of the present invention's the 7th form of implementation.
Figure 13 is the vertical view cutaway drawing of the weft tension applicator of Figure 12.
Figure 14 (a) is the side view cutaway drawing of the weft tension applicator of Figure 12, and Figure 14 (b) is the cutaway view of keypoint part of the weft tension applicator of Figure 12.
Figure 15 (a) is the vertical view cutaway drawing of the related weft tension applicator of the present invention's the 8th form of implementation, the side view cutaway drawing of the weft tension applicator of Figure 15 (b) Figure 15 (a).
Figure 16 (a) is the stereogram of the keypoint part of the related weft tension applicator of the present invention's the 9th form of implementation, and Figure 16 (b) is the cutaway view of keypoint part of the weft tension applicator of Figure 16 (a).
Figure 17 (a) is the side view cutaway drawing of the related weft tension applicator of the present invention's the 10th form of implementation, and Figure 17 (b) is the vertical view cutaway drawing of the weft tension applicator of Figure 17 (a).
The best form of implementation of invention
Below, the 1st form of implementation that the present invention has been specialized is described in conjunction with Fig. 1 (a)～Fig. 5.
Shown in Fig. 1 (a), the air-jet loom with weft tension applicator has slay 11, is fixed with on this slay 11 to erect the stretch nozzle 12 that is provided with.The bottom of stretch nozzle 12 is fastened on by wedge-shaped bar 35 on the upper surface of slay 11 in the formed groove 111.
Be formed with parallel path of navigation 121 in the front of stretch nozzle 12.Never illustrated picking can flown in path of navigation 121 under the jet action with pilot jet 13 (only illustrating among the figure) with a plurality of pickings of nozzle as picking in succession with the parallel Y that sprays in the main burner.Parallel Y is drawn out of in the never illustrated takeup type parallel long measuring storing device under the air flow jetting effect of picking with main burner.
Form between the limit yarn T2 of discarded selvedge W1 being used for forming the weave cotton cloth ground warp T1 and being used for of W, be provided with the 1st weft detectors 14, be provided with the 2nd weft detectors 15 in the side of limit yarn T2.The 1st weft detectors 14 and the 2nd weft detectors 15 are reflective photoelectric sensor type detector, are installed on the slay 11.The 1st weft detectors 14 and the 2nd weft detectors 15 have surveyed area in path of navigation 121, whether the parallel Y that weft detectors 14,15 is used for detecting in the path of navigation 121 arrives.
Be provided with parallel capture unit 16 between limit yarn T2 and the 2nd weft detectors 15.Capture unit 16 has cell body 21 and is connected the feet 22 of the bottom of cell body 21.Capture unit 16 is installed on the slay 11.
Shown in Fig. 3 (a), be formed with the installed surface 17 of inclination in the front of slay 11.Be formed with the support slot 18 that extends along the length direction of slay 11 on the installed surface 17.Support slot 18 comprises by roomy 182 of the narrow width portion 181 of installed surface 17 1 sides and inboard width, formed step 183 between roomy 182 of narrow width portion 181 and the width.Step 183 extends in parallel with respect to installed surface 17.The feet 22 of said capture unit 16 is bonded on the installed surface 17.Pair of bolts 19 (with reference to Fig. 1 (b)) is passed from feet 22.The front end of the threaded portion 191 of each bolt 19 highlights from feet 22, and lock nut 20 is screwed on the end that highlights of this threaded portion 191.
The head 192 of the hexagonal prism shape of bolt 19 is positioned at roomy 182 of width, and the maximum gauge of head 192 is greater than the width of roomy 182 of width.Therefore, carry out the fastening of lock nut 20 under the situation that can contact at the inwall of roomy 182 of the bight of hexagonal head 192 and width.By fastening lock nut 20, head 192 is pressed touch on step 183, feet 22 (being capture unit 16) is fixed on the slay 11.
Picking is with pilot jet 103 and weft detectors 14,15, be by be used for that capture unit 16 is installed in the identical means of means (bolt 19 and lock nut 20) on the slay 11 and be installed on the slay 11.
Be formed with groove 23 on the upper surface 211 of cell body 21.Groove 23 is uncovered to the front 213 of cell body 21.
As shown in Figure 2, be formed with a pair of embedded hole 24,25 on the cell body 21.Embedded hole 24 is through to groove 23 from the back side 212 of cell body 21.Embedded hole 25 is through in the groove 23 from the side 214 (sides of the 2nd weft detectors 15 those sides) of cell body 21.
Chimeric in the embedded hole 24 have the 1st parallel to catch pipe 26, and chimeric in the embedded hole 25 have the 2nd parallel seizure pipe 27 chimeric.Path 263 in the 1st seizure pipe 26 extends perpendicularly with respect to the bearing of trend of path of navigation 121.The 1st outstanding end of catching pipe 26 that highlights from embedded hole 24 is by the shape of declinate cutting, and the 1st introducing port 261 of catching the tilted shape of pipe 26 stretches in the path of navigation 121 and towards limit yarn T2 one side.That is, introducing port 261 is to stretch in the path of navigation 121 towards the opposite direction of the direct of travel of parallel Y and the mode that links to each other with path of navigation 121.
The 2nd outstanding end of catching pipe 27 that highlights from embedded hole 25 is by the shape of declinate cutting, and the 2nd outlet 271 of catching the tilted shape of pipe 27 is stretched in the path of navigation 121.The 2nd outlet 271 of catching pipe 27 is intersected with path of navigation 121 and towards the downstream of path of navigation 121, outlet 271 is arranged on the upstream side of the 2nd weft detectors 15 for path of navigation 121.
Shown in Fig. 3 (b), be formed with air supply hole 28 on the lower surface 210 of cell body 21, be connected with air hose 29 on the air supply hole 28.Air hose 29 is connected on the not shown air pressure supply source by not shown electromagnetic switch valve.
As shown in Figure 2, on the sidewall of the cell body 21 that forms groove 23, be formed with stretch nozzle 30.Stretch nozzle 30 is communicated in the air supply hole 28, and the pressure air of sending in the air supply hole 28 through air hose 29 sprays from stretch nozzle 30.The injection direction of stretch nozzle 30 points to the 2nd introducing port 272 of catching pipe 27, is blown into the 2nd and catches the introducing port 272 of pipe 27 after the air-flow of stretch nozzle 30 ejections is horizontally through groove 23.
Between the back side 212 of cell body 21 and side 215 (sides of the 1st weft detectors 14 1 sides), be formed with curved surface 216.
Shown in Fig. 3 (a), a side is provided with nozzle forming body 31 at the back side of stretch nozzle 12.The feet 311 of nozzle forming body 31 is fastened in the groove 111 by wedge portion material 36.Screw 37 passes in the screw 112 that wedge portion material 36 is screwed onto groove 111 bottoms.Wedge portion material 36 is fixed on feet 311 in the groove 111 by the fastening of screw 37.The length direction of screw 112 grooves 111 is provided with number row, just can select nozzle forming body 31 on the length direction of groove 111 position to be set by selecting screw 112.
Shown in Fig. 2 and Fig. 3 (a), on the back side of nozzle forming body 31, be formed with air supply hole 32, be connected with air hose 33 on the air supply hole 32.Air hose 33 is connected on the not shown air pressure supply source by not shown electromagnetic switch valve.The buffer substrate tablet 34 of rubber manufacturing is fixed on the front of nozzle forming body 31.Be formed with stretch nozzle 312 in the front of nozzle forming body 31, be formed with through hole 341 on the buffer substrate tablet 34.Stretch nozzle 312 communicates with air supply hole 32, and the pressure air of sending in the air supply hole 32 through air hose 33 sprays from stretch nozzle 312.The injection direction of stretch nozzle 312 points to the introducing port 261 of the 1st seizure pipe 26.From the air-flow of stretch nozzle 312 ejection, between the adjacent reed wire 122 of through hole 341 and stretch nozzle 12 by and be horizontally through and be blown into the 1st behind the path of navigation 121 and catch the introducing port 261 of pipe 26.
From the aerojet of stretch nozzle 312,30, the leading section of parallel Y arrive the 1st catch the introducing port 261 of pipe 26 before beginning.The leading section of the parallel Y of flight in path of navigation 121 is blown into the 1st by the air-flow from stretch nozzle 312 ejections and catches in the pipe 26.Be blown into the 1st leading section of catching the parallel Y in the pipe 26 from the 1st outlet 262 of catching pipe 26 by after enter the groove 23.Enter the leading section of the parallel Y in the groove 23, be blown into the 2nd by air-flow and catch the introducing port 272 of pipe 27 from stretch nozzle 30 ejections.When the leading section of parallel Y arrived the position midway of the 2nd seizure pipe 27, the extraction of said parallel from parallel long measuring storing device was prevented from.
From stopping of the aerojet of stretch nozzle 312, thinking that the leading section of parallel Y is blown into the 2nd and carries out after catching in the pipe 27.The aerojet air-flow that acts on the leading section that is blown into the parallel Y in the 2nd seizure pipe 27 is given parallel Y with tension force.
The 1st path 263, groove 23 and the 2nd path 273 of catching in the pipe 27 of catching in the pipe 26 constituted parallel stretch nozzle 38, and this stretch nozzle 38 has the upwardly extending part in side that intersects at the bearing of trend with path of navigation 121.Capture unit the 16, the 1st is caught pipe the 26 and the 2nd and is caught the passage forming body 39 that pipe 27 has constituted formation stretch nozzle 38.The 1st catches pipe 26, is to stretch into tube portion in the path of navigation 121 with the introducing port 261 of stretch nozzle 38 towards the opposite direction of the direct of travel of parallel Y and the mode that links to each other with path of navigation 121.
The said groove 23 that constitutes the part of stretch nozzle 38 is arranged on the position midway of stretch nozzle 38, works as the outside uncovered tributary circuit towards passage forming body 39.The two position that crosses of the injection direction of the injection direction of stretch nozzle 312 and stretch nozzle 30 is positioned on the connecting portion of stretch nozzle 38 and tributary circuit (groove 23).Introducing port 272 works as being positioned at the direction transformation mouth of tributary circuit (groove 23) with the stretch nozzle in the downstream of the connecting portion of stretch nozzle 38.
For parallel Y, in stretch nozzle 38, be under the state that crooked shape is captured at the leading section of parallel Y and beat up.Fig. 4 illustrates the fell Wo of the W state when going up of weaving cotton cloth that beats up to parallel Y.
The 1st form of implementation can obtain following effect.
(1-1) the 1st bearing of trend of catching the path 263 in the pipe 26 intersects (vertical) with the bearing of trend of path of navigation 121.Be imported into the leading section of the parallel Y in the stretch nozzle 38 that this direction is extended, be the shape that is blown down by air-flow and be captured from stretch nozzle 312,30 ejections.The structure that the shape that employing blows down the leading section of parallel Y with air-flow is caught can be given parallel Y with enough tension force.
(1-2) be imported into the leading section of the parallel Y in the stretch nozzle 38, the inner peripheral 274 (as Fig. 2 with shown in Figure 4) of catching the introducing port 272 of pipe 27 with the inner peripheral 265 of the 1st inner peripheral 264 of catching the introducing port 261 of pipe 26 (as Fig. 2 with shown in Figure 4), outlet 262 (as Fig. 2 with shown in Figure 4) and the 2nd contacts and the wide-angle bending.Inner peripheral 264,265,274 is bends that form, that be intended to make curvature of parallel on the wall that forms stretch nozzle 38.Make the structure of the leading section wide-angle bending of the parallel Y in the stretch nozzle 38, play the effect that makes parallel Y obtain good tension force, also have and suppress parallel Y significantly because of the lax effect of shake.
(1-3) have the passage forming body 39 of the stretch nozzle 38 that the leading section of parallel Y is caught with the shape that blows down, be positioned at the front (front of stretch nozzle 12) of path of navigation 121.Owing to the leading section of the parallel Y of flight in path of navigation 121 can be imported the introducing port 261 of front one side that is arranged in path of navigation 121, therefore, there is no need as make parallel between the adjacent reed wire 122 by and parallel import is caught the interval of strengthening reed wire the existing apparatus of pipe.Therefore, there is not the interval of the strengthening reed wire impaired problem of W that causes weaving cotton cloth.
(1-4) passage forming body 39 can move by the bearing of trend along path of navigation 121 under the state that lock nut 20 is become flexible.That is, passage forming body 39 can it be provided with the position along path of navigation 121 changes.Therefore,, passage forming body 39 can be arranged on the suitable position on the bearing of trend of path of navigation 121, can tackle the change of weaving width easily even in the occasion that width changes of weaving of weaving cotton cloth.
(1-5) introducing port 261 that tilts with respect to the bearing of trend of path of navigation 121 stretches in the path of navigation 121.That is, the introducing port 261 of stretch nozzle 38 is to link to each other towards the opposite direction (opposing with it direction) of the direct of travel of parallel Y and with path of navigation 121.The structure that this introducing port 261 links to each other with path of navigation 121, the leading section that can effectively improve the parallel Y that will fly in path of navigation 121 imports the reliability in the stretch nozzle 38.
(1-6) air-flow from stretch nozzle 30 ejections intersects with the air-flow that sprays from stretch nozzle 312.It can be captured the 2nd from the air-flow of stretch nozzle 30 ejections and catch in the path 273 of pipe 27 for importing the 1st part of catching the leading section of the parallel Y in the path 263 of pipe 26, utilizing.That is, from the air-flow of stretch nozzle 30 ejection will from stretch nozzle 312 ejection backs the 1st catch in the pipe 26 and the situation of airflow flowing blocking-up in the groove 23 under, the leading section of parallel Y is blown into the 2nd seizure manages in 27.Its result, the leading section of the parallel Y in the stretch nozzle 38 is to be captured under the state of bending stretch nozzle 38 in.Utilization makes the structure of parallel Y bending from the air-flow of stretch nozzle 30 ejection in stretch nozzle 38, be preferred from giving parallel Y with the angle of enough tension force.
Preferably, be at the 1st about 2 times of outlet 262 flow velocitys of catching pipe 26 from the air-flow of stretch nozzle 30 ejection from the air-flow of stretch nozzle 312 ejections at the 2nd flow velocity of catching the introducing port 272 of pipe 27.
(1-7) the curve E in the curve map of Fig. 5, be that the air injection pressure of reflection stretch nozzle 30 is set at 0.3MPa and the air injection pressure of stretch nozzle 312 when changing, the variation of the frictional force between parallel Y and the passage forming body 39 in the scope of 0～0.5MPa.Frictional force maximum when by the curve map of Fig. 5 as can be known, the air injection pressure of stretch nozzle 312 is zero.That is, the leading section of parallel Y enters under the 2nd state of catching in the pipe 27 stretch nozzle 30 injection airs is compared with making stretch nozzle 312,30 the two equal injection air, helps increasing frictional force and is accompanied by lax that shake takes place to suppress parallel Y.
(1-8) from the air-flow of stretch nozzle 312 ejections of the nozzle forming body 31 that is arranged on stretch nozzle 12 back sides, be subjected to from picking with the effect of the air-flow of pilot jet 13 ejections path of navigation 121 in the leading section of the parallel Y of flight be blown into the 1st seizure and manage in 26.That is, under the situation of the blocking-up of airflow flowing path of navigation 121 in that picking is sprayed with pilot jet 13, the leading section of parallel Y is blown into the 1st seizure manages in 26 from the air-flow of stretch nozzle 312 ejection.Be blown into air-flow the introducing port 261 of stretch nozzle 38 from the stretch nozzle 312 of the back side one side of stretch nozzle 12, the leading section that can improve the parallel Y that will fly in path of navigation 121 imports the reliability in the stretch nozzle 38.
Preferably, at the 1st flow velocity of catching the introducing port 261 of pipe 26, be to catch near the flow velocity introducing port 261 of pipe 26 about 5 times with the air-flow of pilot jet 13 ejections the 1st from the air-flow of stretch nozzle 312 ejection from picking.
(1-9) the 1st weft detectors 14 and the 2nd weft detectors 15 have surveyed area in path of navigation 121, and the outlet 271 of stretch nozzle 38 is with the mode that intersects with path of navigation 121 downstream towards path of navigation 121.
Disclosed as patent documentation 4, in air-jet loom, generally all uses and detect the length whether parallel arrive the parallel of the 1st weft detectors of both allocations and the picking of detection institute and whether exceed both the 2nd weft detectors of measured length.In case parallel Y arrives introducing port 261 places of the 1st seizure pipe 26, the 1st weft detectors 14 just can detect parallel and arrive.In case parallel Y arrives the surveyed area of the 2nd weft detectors 15, the 2nd weft detectors 15 just can detect parallel and arrive.That is, in this form of implementation, what detect whether parallel arrive both allocations is the 1st weft detectors 14, and what whether the length that detects the parallel of institute's picking exceeded both measured lengths is the 2nd weft detectors 15.The 2nd weft detectors 15 can also detect and parallel Y broken string take place or overlayed on that the lip-deep covered wire of upholding line is peeled off and phenomenon such as at random.
When the outlet 271 of adopting stretch nozzle 38 during towards the structure in the downstream of path of navigation 121, can detect in the path of navigation 121 whether parallel Y is arranged in the mode that intersects with path of navigation 121 by the 2nd weft detectors 15.
(1-10) if be arranged on stretch nozzle 12 the back side one side nozzle forming body 31 and reed wire 122 the two directly contact, then the vibration of reed wire 122 can cause nozzle forming body 31 and reed wire 122 to wear and tear.Have between the buffer substrate tablet 34 of the rubber manufacturing between nozzle forming body 31 and the stretch nozzle 12 and to avoid nozzle forming body 31 and reed wire 122 directly to contact effect to prevent to wear and tear.
(1-11) if the groove 23 of cell body 21 is not uncovered from upper surface 211 and front 213, then be difficult to make flow velocity decay from the air-flow of stretch nozzle 312 ejections.If under the state that the flow velocity of the air-flow of stretch nozzle 312 ejection is decayed inadequately, collide mutually, then be not easy to make the leading section of parallel Y to change travel directions to the 2nd introducing port 272 of catching pipe 27 from the air-flow of stretch nozzle 312 ejections and air-flow from stretch nozzle 30 ejections.In addition, decay inadequately as if the flow velocity of the air-flow that sprays from stretch nozzle 312, the leading section of parallel Y just is not easy to come in contact with the 2nd inner peripheral of catching the introducing port 272 of pipe 27, and tension force obtains effect and will reduce.
(1-12) when stretch nozzle 12 retreats parallel Y shown in Figure 4 is weaved cotton cloth the state at fell Wo place of W by beating up under, the leading section of the parallel Y in the stretch nozzle 38 will slowly withdraw from from stretch nozzle 38.And when the passage forming body that retreats with stretch nozzle 12 39 arrives shown in the double dot dash line of Fig. 4 near the position, parallel Y will contact with curved surface 216.After beating up, do not need to give parallel Y with tension force, the leading section of parallel Y preferably can withdraw from from stretch nozzle 38 smoothly.Curved surface 216 helps to reduce the resistance that is subjected to when parallel Y withdraws from from stretch nozzle 38.
Below, the 2nd form of implementation of Fig. 6 and Fig. 7 is described.All component parts identical with the 1st form of implementation are used identical numbering.
As shown in Figure 7, be formed with embedded hole 40 on the cell body 21A of passage forming body 39A.It is crossing towards the mode and path of navigation 121 inclinations in path of navigation 121 downstreams with the bearing of trend of its path 263 to be entrenched in the seizure of the 1st in this embedded hole 40 pipe 26A.The introducing port 261A of the tilted shape of the 1st seizure pipe 26A and stretch nozzle 312 are in opposite directions.
Be formed with on the cell body 21A from embedded holes 41, the 2 seizure pipe 27A of groove 23 interior 214 extensions and be entrenched in the embedded hole 41 towards the side.The injection direction of stretch nozzle 30 points to the 2nd introducing port 272A that catches pipe 27A, is blown into the 2nd and catches the introducing port 272A of pipe 27A after the air-flow of stretch nozzle 30 ejections is horizontally through groove 23.
As shown in Figure 6, be formed with groove 42 on the upper surface of cell body 21A.Groove 42 is 214 uncovered from the side.
As shown in Figure 7, groove 42 is connected with embedded hole 41.Being formed with embedded hole 43, the 3 seizure pipes 44 that extend towards groove 42 from the back side 212 on the cell body 21A is entrenched in the embedded hole 43.On the sidewall of the cell body 21A that forms groove 42, be formed with stretch nozzle 45.The injection direction of stretch nozzle 45 points to the introducing port 441 of the 3rd seizure pipe 44.Stretch nozzle 45 is communicated to air supply hole 46, and air supply hole 46 is connected on the not shown pressure air supply source through air hose shown in Figure 6 47 and not shown electromagnetic switch valve.Being blown into the 3rd after the air-flow of stretch nozzle 45 ejection is horizontally through groove 42 catches the introducing port 441 of pipe 44.
In the cell body 21A the 3rd catches pipe 44 parts and the 1st, and to catch pipe 26A parallel, the 3rd end one side of catching pipe 44 with the downstream of the crossing mode of path of navigation 121 small angle inclination towards path of navigation 121.The 3rd outlet 442 of catching pipe 44 is positioned at the upstream side of the 2nd weft detectors 15 with respect to path of navigation 121.
The 1st path 263, the groove the 23, the 2nd of catching pipe 26A caught path 273, groove 42 and the 3rd path 443 of catching pipe 44 of managing 27A and constituted stretch nozzle 48, and this stretch nozzle 48 has the upwardly extending part in side that intersects at the bearing of trend with path of navigation 121.The air-flow that is sprayed by stretch nozzle 312 is blown into the 1st leading section of catching the parallel Y among the pipe 26A and can be blown into the 2nd by the air-flow that stretch nozzle 30 sprays and catches in the pipe 27A.Being blown into the 2nd leading section of catching the parallel Y in the pipe 27A can be blown into by the air-flow that stretch nozzle 45 sprays in the 3rd seizure pipe 44.The leading section that is caught in the parallel Y in the stretch nozzle 48 can arrive the 3rd and catch near the end of pipe 44.
The 2nd form of implementation have with the 1st form of implementation in item (1-1)～(1-4), (1-6), (1-8)～(1-12) same effect.In addition, have the more stretch nozzle 48 of multiple bending sections, can more effectively suppress parallel Y and shake, and can further improve tension force and give performance compared with the stretch nozzle 38 of the 1st form of implementation.The raising that tension force is given performance helps reducing the consumption of the air that is used to catch parallel Y.
In addition, from making parallel catch bending angle on the inner peripheral of introducing port 261A of pipe 26A and parallel in the 1st bigger viewpoint of bending angle of catching on the inner peripheral of outlet 262A of pipe 26A, catch pipe 26A and be advisable with respect to the structure that path of navigation 121 tilts to intersect to adopt the 1st the 1st.
In addition, the groove 42 of cell body 21A is to the uncovered structure in upper surface 211 and side 214, has from the flow velocity of the air-flow of the stretch nozzle 30 ejections effect of decay easily.
Below, the 3rd form of implementation of Fig. 8 (a) and Fig. 8 (b) is described.All component parts identical with the 1st form of implementation are used identical numbering.
Be fixed with the 1st on the cell body 21B of formation passage forming body 39B and catch pipe 26B.The 1st introducing port 261B that catches pipe 26B stretches in the path of navigation 121 and towards the opposite direction (opposing with it direction) of the direct of travel of parallel Y.Be fixed on that outlet 271B that the 2nd on the cell body 21B catch pipe 27B stretches in the path of navigation 121 and towards the direct of travel of parallel Y.Stretch nozzle 30 points to the 2nd and catches the introducing port 272B that manages 27B.
The 1st path 263, the groove 23 and the 2nd of catching pipe 26B caught the path 273 of managing 27B and constituted stretch nozzle 49, and this stretch nozzle 49 has the upwardly extending part in side that intersects at the bearing of trend with path of navigation 121.The leading section of the parallel Y of flight in path of navigation 121 can be blown into the 1st seizure pipe 26B with the air-flow of picking with pilot jet 13 (with reference to Fig. 1 (a)) ejection from picking.Being blown into the 1st leading section of catching the parallel Y among the pipe 26B can be blown into by the air-flow from stretch nozzle 30 ejections in the 2nd seizure pipe 27B.
Catching on the pipe 26B as the 1st of the tube portion of the introducing port 261B that forms stretch nozzle 49, chimeric have by the elastic ring 50 as the rubber manufacturing of elastomeric material.In addition, the 2nd seizure pipe 27B goes up the chimeric elastic ring of making by as the rubber of elastomeric material 51 that has.Elastic ring 50,51 contacts with the wall of the reed wire 122 that forms path of navigation 121.
The 3rd form of implementation have with the 1st form of implementation in item (1-1), (1-3)～(1-6), (1-9), (1-11) same effect.In addition, owing to the nozzle forming body 31 that does not need in the 1st form of implementation, thereby structure becomes more simple.
In addition, in path of navigation 121, fill flexible ring 50 between the outer peripheral face of the 1st seizure pipe 26B and the wall of reed wire 122.Therefore, can be more reliably the leading section of parallel Y being imported the 1st catches among the pipe 26B.And the two directly contacts can to stop reed wire 122 and the 1st to catch pipe 26B by elastic ring 50, thereby the vibration of reed wire 122 causes wearing and tearing can avoid beating up the time.Elastic ring 51 also has avoids the effect of wearing and tearing.
The present invention can also with Fig. 9, Figure 10 and Figure 11 the 4th, the 5th and the 6th form of implementation of showing respectively implemented.In these forms of implementation, all component parts identical with the 1st form of implementation are used identical numbering.
In the 4th form of implementation shown in Figure 9, the capture unit 16C that constitutes passage forming body is assembled on the 1st weft detectors 14.Because the 1st weft detectors 14 is arranged on the outside of limit yarn T2, therefore, can make the interval between ground warp T1 and the limit yarn T2 littler than the 1st form of implementation.This helps shortening the length of the parallel that carries out a picking and reduces the parallel consumption.
In the 5th form of implementation shown in Figure 10, the 2nd seizure pipe 27D that is fixed on the cell body 21D that constitutes passage forming body 39D is vertical with groove 23, and the installation direction of the 2nd weft detectors 15 is opposite with the 1st form of implementation.That is, the surveyed area of the 2nd weft detectors 15 is set in the 2nd and catches on the extended line of path 273 of pipe 27D.The 1st path 263, the groove 23 and the 2nd of catching pipe 26 caught the path 273 of managing 27D and constituted stretch nozzle 52.During situations such as the picking length overlength of generation parallel Y or parallel broken string, parallel Y can pass through from the surveyed area of the 2nd weft detectors 15.
In the 6th form of implementation shown in Figure 11, be fixed on the path 53 vertical and points upwards that the 2nd on the cell body 21E that constitutes passage forming body 39E catches pipe 27E and 213 openings from the front.The injection direction that is formed at the stretch nozzle 30E on the bottom surface of path 53 points to the 2nd introducing port 272E that catches pipe 27E.Being imported into the 1st leading section of catching the parallel Y in the pipe 26 can be blown into by the air-flow from stretch nozzle 30E ejection the 2nd seizure pipe 27E.The 1st path 263, the path 53 and the 2nd of catching pipe 26 caught the path 273 of managing 27E and constituted stretch nozzle 54.
Below, the 7th form of implementation of Figure 12～Figure 14 (b) is described.All component parts identical with the 1st form of implementation are used identical numbering.
As shown in figure 12, pair of bolts 19 and lock nut 20 make capture unit 55 fluid-tight engagement on the installed surface 17 of slay 11.
Shown in Figure 14 (b), be formed with a pair of embedded hole 56,57 on the capture unit 55.Embedded hole 56 extends through lower surface 552 from the upper surface 551 of capture unit 55.Embedded hole 57 extends through the embedded hole 56 from the side 553 (sides of the 2nd weft detectors 15 1 sides) of capture unit 55.Chimeric and be fixed with the 1st and catch pipe 58 in the embedded hole 56, chimeric and be fixed with the 2nd and catch pipe 59 in the embedded hole 57.The 1st catches the position midway that pipe 58 is embedded into embedded hole 56.
Shown in Figure 14 (a), the 1st protuberance 581 of catching pipe 58 that highlights from embedded hole 56 is crooked.As shown in figure 13, the end of protuberance 581 is formed with the introducing port 582 that is the shape that tilts to cut off.This introducing port 582 stretches in the path of navigation 121 and towards limit yarn T2.That is, introducing port 582 is to stretch in the path of navigation 121 towards the opposite direction of the direct of travel of parallel Y and the mode that links to each other with path of navigation 121.
The 1st catch in the pipe 58 path by in path of navigation 121 towards the path 583 in the place ahead (the place ahead of stretch nozzle 12) of path of navigation 121, constitute towards the decline path 584 of below simultaneously towards the place ahead (the place ahead of stretch nozzle 12) of path of navigation 121.Path 583 extends to the direction vertical with the bearing of trend of path of navigation 121.
On the outstanding end of the 2nd seizure pipe 59 that from embedded hole 57, highlights, be formed with the outlet 591 that is to tilt the cut-out shape.This outlet 591 is stretched in the path of navigation 121.Towards the downstream of path of navigation 121, outlet 591 is positioned at the upstream side of the 2nd weft detectors 15 with respect to path of navigation 121 in the mode that intersects with path of navigation 121 in outlet 591.
Shown in Figure 14 (b), be formed with air supply hole 60 on the side 554 of capture unit 55, air hose 29 is connected on the air supply hole 60.Air hose 29 is connected on the not shown air supply source by not shown electromagnetic switch valve.
On the perisporium of the capture unit 55 that forms embedded hole 56, be formed with stretch nozzle 61.Stretch nozzle 61 is communicated with air supply hole 60, and the pressure air of sending in the air supply hole 60 through air hose 29 sprays from stretch nozzle 61.The injection direction of stretch nozzle 61 points to the 2nd introducing port 592 of catching pipe 59, from being blown into the 2nd introducing port 592 of catching pipe 59 after the air-flow of stretch nozzle 61 ejections is horizontally through embedded hole 56.
Air is from the injection of stretch nozzle 312,61, the leading section of parallel Y arrive the 1st catch the introducing port 582 of pipe 58 before beginning.The leading section of the parallel Y of flight in path of navigation 121 can be blown into the 1st and catch in the pipe 58 by the air-flow from stretch nozzle 312 ejections.Being blown into the 1st leading section of catching the parallel Y in the pipe 58 enters in the embedded hole 56 through the 1st outlet 585 of catching pipe 58.Through exporting 585 leading sections that enter the parallel Y in the embedded hole 56, be blown to the two intersection of embedded hole 56 and embedded hole 57.
In the following description, the part that is positioned at embedded hole 56 and the below of the intersection of embedded hole 57 with embedded hole 56 is called tributary circuit 561.Arrive the two the leading section of parallel Y of intersection of embedded hole 56 and embedded hole 57, be blown into the 2nd by air-flow and catch the introducing port 592 of pipe 59 from stretch nozzle 61 ejections.When the leading section of parallel Y arrived the position midway of the 2nd seizure pipe 59, the extraction of parallel from parallel long measuring storing device was prevented from.
Stopping the ejection of air from stretch nozzle 312, is to think that the leading section of parallel Y is blown into the 2nd and carries out after catching in the pipe 59.The jet-stream wind that acts on the leading section that is blown into the parallel Y in the 2nd seizure pipe 59 is given parallel Y with tension force.
Capture unit the 55, the 1st is caught pipe the 58 and the 2nd and is caught the passage forming body 63 that pipe 59 has constituted formation stretch nozzle 62.The 1st catches pipe 58, is to stretch into tube portion in the path of navigation 121 with the introducing port 582 of stretch nozzle 62 towards the opposite direction of the direct of travel of parallel Y and the mode that links to each other with path of navigation 121.
Be imported into the leading section of the parallel Y in the stretch nozzle 62, contact and the wide-angle bending with the 1st inner peripheral 586 (as shown in figure 13), the inner peripheral 587 (shown in Figure 14 (b)) of outlet 585, the 2nd inner peripheral 594 (shown in Figure 14 (b)) of catching the introducing port 592 of pipe 59 of catching the introducing port 582 of pipe 58.Parallel Y is in stretch nozzle 62 under the state that curved shape is captured at the leading section of parallel Y and beats up.
The 7th form of implementation except have with the 1st form of implementation in item (1-1)～(1-6) and (1-8)～(1-10) same effect, also have following effect.
(7-1), go up the downstream that the position is set that passage forming body is arranged on side shoring device at the bearing of trend (picking direction) of path of navigation 121 for fear of being intended to prevent near weaving cotton cloth W crimp and when beating up, interfere between the side shoring device (omitting among the figure) that is provided with and the passage forming body fell Wo.So, the length of the parallel of institute's picking is in this case compared and will be grown with going up at the bearing of trend (picking direction) of path of navigation 121 passage forming body to be arranged on near the situation about being provided with the same position of position of side shoring device.This is unfavorable from the use amount of saving parallel.
As the part of stretch nozzle 62, comprise from stretch into introducing port 582 in the path of navigation 121 towards the path 583 in the place ahead of path of navigation 121 and continuity from path 583 and towards the decline path 584 of below.That is, stretch nozzle 62 has slightly behind the place ahead of path of navigation 121 immediately shape downwards.Top (cell body 21) with the passage forming body 39 in top and the 1st form of implementation for example of passage forming body 63 of stretch nozzle 62 of this shape is compared, can be less from the amount that path of navigation 121 forwards stretches out.This is effective for being avoided interfering with side shoring device.
That is,, also can avoid passage forming body 63 and side shoring device to interfere even if go up near the occasion same position of position of being provided with that passage forming body 63 is arranged on side shoring device at the bearing of trend (picking direction) of path of navigation 121.
(7-2) constituting the leading section Ye (as shown in figure 13) of the parallel of the discarded selvedge W1 after being made into, is the leading section that is caught in the parallel in the stretch nozzle of passage forming body when beating up.Passage forming body will be close near the leading section Ye of the parallel the fell Wo when beating up, and the leading section Ye that constitute the parallel of the discarded selvedge W1 that is made into this moment enters in the stretch nozzle 62.So, the leading section Ye that enters into the parallel in the stretch nozzle 62 parallel that can hinder the script that should catch by the stretch nozzle of passage forming body obtains suitable tension force.
Play the effect same with the terminal consecutive tributary circuit 561 of decline path 584 with the groove 23 of the 1st form of implementation.The outlet 562 of tributary circuit 561 is arranged on the lower surface 552 of capture unit 55.That is, only towards lower opening, the leading section Ye of parallel that can not constitute discarded selvedge W1 is from exporting 562 situations about entering in the tributary circuit 561 to the outlet 562 of the tributary circuit 561 of the outside opening of passage forming body 63.The outlet 562 of tributary circuit 561 is the structure of downwardly facing opening only, can prevent that the leading section Ye that constitutes the parallel of discarding selvedge W1 from entering in the tributary circuit 561.
Below, the 8th form of implementation of Figure 15 (a) and Figure 15 (b) is described.The component part that the 7th form of implementation of all and Figure 12～Figure 14 (b) and the 3rd form of implementation of Fig. 8 (a) and Fig. 8 (b) are identical is used identical numbering.
Constitute and to be fixed with the 1st on the capture unit 55 of passage forming body 63A and to catch pipe 58A, the 1st introducing port 582A that catches pipe 58A stretches in the path of navigation 121 and towards the opposite direction (opposing with it direction) of the direct of travel of parallel Y.
The path 583A of the 1st seizure pipe 58A, decline path 584 and the 2nd path 593 of catching pipe 59 have constituted stretch nozzle 64, and this stretch nozzle 64 has constituted the part with the direction extension of intersecting to the bearing of trend with path of navigation 121.The leading section of the parallel Y of flight in path of navigation 121 can be blown in the 1st seizure pipe 58A from the air-flow of picking with pilot jet 13 (with reference to Fig. 1 (a)) ejection.Be blown into the 1st leading section of catching the parallel Y in the pipe 58A, can be blown into the 2nd by air-flow and catch in the pipe 59 from stretch nozzle 61 ejections.
Catching among the pipe 58A the chimeric elastic ring 50 that has as the rubber manufacturing of elastomeric material as the 1st of the tube portion of the introducing port 582A that forms stretch nozzle 64.Elastic ring 50 contacts with the wall of the reed wire 122 that forms path of navigation 121.
The 8th form of implementation has and the 3rd form of implementation and the same effect of the 7th form of implementation.
Below, the 9th form of implementation of Figure 16 (a) and Figure 16 (b) is described.The component part that the 7th form of implementation all and Figure 12～Figure 14 (b) is identical is used identical numbering.
Constitute on the capture unit 55B of passage forming body 63B and be penetrated with embedded hole 56, chimeric and be fixed with and catch pipe 58B in the embedded hole 56.Catch pipe 58B and pass embedded hole 56, the outlet 585B of stretch nozzle 58B is opening downwards in the outside of capture unit 5 5B.
Path in the stretch nozzle 58B is the stretch nozzle 65 by the decline path 584B towards the below constitutes towards the path 583B in the place ahead (the place ahead of stretch nozzle 12) of path of navigation 121 and towards the place ahead (the place ahead of stretch nozzle 12) of path of navigation 121 time in path of navigation 121.Stretch nozzle 65 is only to the lower opening of passage forming body 63B.That is, see over, can see outlet 585B whole of stretch nozzle 65 from the below of above-below direction.The path 583 of path 583B and the 7th form of implementation is same, extends to vertical direction with respect to the bearing of trend of path of navigation 121.
Shown in Figure 16 (b), be formed with air supply hole 60 on the side 554 of capture unit 55B, air hose 29 is connected on this air supply hole 60.Air hose 29 is connected on the not shown pressure air supply source by not shown electromagnetic switch valve.
On the perisporium that 5 8B are managed in perisporium and the seizure of the capture unit 55B that forms embedded hole 56, be formed with stretch nozzle 61B.Stretch nozzle 61B is communicated with air supply hole 60, and the pressure air of sending in the air supply hole 60 through air hose 29 sprays from stretch nozzle 61B.The injection direction of stretch nozzle 61B points to outlet 585B one side of stretch nozzle 58B, below spraying to from the decline path 584B of air-flow in stretch nozzle 58B of stretch nozzle 61B ejection.
The 2nd weft detectors 15 has surveyed area in the region of elongation of the outlet 585B of stretch nozzle 58B, the 2nd weft detectors 15 detects in the region of elongation that whether has parallel Y to arrive outlet 585B.During situations such as generation parallel Y overlength picking or parallel broken string, parallel Y can pass through from the surveyed area of the 2nd weft detectors 15.
The 9th form of implementation have with the 1st form of implementation in item (1-1), (1-3), (1-4), (1-10) and the 7th form of implementation in item (7-1), (7-2) same effect.
Below, the 10th form of implementation of Figure 17 (a) and Figure 17 (b) is described.All component parts identical with the 1st form of implementation are used identical numbering.
On the cell body 21 that constitutes capture unit 16, be formed with the tributary circuit 66 that arrives in the embedded hole 24,25 from lower surface 210.Constitute lower surface 210 (be the below of the passage forming body 39F) opening of the tributary circuit 66 of stretch nozzle 38F with path 263,273 to the capture unit 16 that constitutes passage forming body 39F.Tributary circuit 66 plays the effect same with the groove 23 of the 1st form of implementation.To the outlet 651 of the tributary circuit 66 of the outside opening of passage forming body 39F opening downwards only.That is, see in the below from above-below direction, can see outlet 651 whole of tributary circuit 66.The leading section Ye that can not constitute the parallel of discarding selvedge W1 is from exporting 651 situations about entering in the tributary circuit 66.The outlet 651 of tributary circuit 66 is the structure of opening downwards only, and the leading section Ye that can prevent to constitute the parallel of discarded selvedge W1 enters in the tributary circuit 66.
The present invention can also be implemented with following form of implementation.
In the 2nd form of implementation, also can be blown into the 3rd at the leading section of parallel Y and catch and to stop stretch nozzle 312,30 injection airs in the pipe 44 afterwards.Like this, can access with the 1st form of implementation in the item (1-7) same effect.
In the 1st form of implementation, also can instead of grooves 23 and only adopt path to front 213 openings.
In the 2nd form of implementation, also can instead of grooves 42 and only adopt path to side 214 openings.
In the 1st form of implementation, also can make the 1st seizure pipe the 26 and the 2nd seizure pipe 27 integrally formed with cell body 21.
In the 2nd form of implementation, also can make the 1st seizure pipe 26A and the 2nd seizure pipe 27A and cell body 21A integrally formed.
Claims (12)
1. weft tension applicator, utilize picking with under the air flow jetting effect of nozzle with parallel in the air-jet loom of path of navigation picking, have the passage forming body that forms stretch nozzle and stretch nozzle, utilize from the air-flow of said stretch nozzle ejection for said parallel being captured in the said stretch nozzle parallel is imported in the stretch nozzle, it is characterized in that
Said passage forming body is arranged on front one side of said path of navigation, and it is provided with the position and can changes along said path of navigation, and at least a portion of said stretch nozzle is extended on the direction that the bearing of trend with said path of navigation intersects,
The outlet that said stretch nozzle has the introducing port that links to each other with said path of navigation and is disposed at said path of navigation,
Said passage forming body comprises the pipe that the tube portion that forms said introducing port and formation are explained,
Said tube portion with said introducing port towards the reciprocal mode of parallel direct of travel and between lower wall surface on this one and the said path of navigation and inboard wall interstitial state, stretch in the said path of navigation,
Said pipe stretches in the said path of navigation to be formed with the state in space between the last lower wall surface of this pipe and said path of navigation and the inboard wall,
At the upstream side of said introducing port, be provided with and detect parallel and whether arrive in the said path of navigation both the 1st weft detectors of allocation, in the downstream of being explained, whether the length that is provided with the parallel that detects institute's picking exceeds both the 2nd weft detectors of measured length.
2. as the said weft tension applicator of claim 1, it is characterized in that, form the wall of the said passage forming body of said stretch nozzle, have at least two bends that are intended to make said curvature of parallel.
3. as claim 1 or 2 said weft tension applicators, it is characterized in that said stretch nozzle is arranged on the said passage forming body, this stretch nozzle produces said air-flow in said stretch nozzle, and makes parallel crooked in this stretch nozzle.
4. as claim 1 or 2 said weft tension applicators, it is characterized in that, said stretch nozzle is arranged on the said passage forming body that makes parallel bending in said stretch nozzle, said passage forming body has the consecutive tributary circuit in position midway with said stretch nozzle, this tributary circuit only has from the outlet of the lower opening of passage forming body, said stretch nozzle has and is positioned at the two the direction in downstream of connecting portion of this stretch nozzle and said tributary circuit and changes mouthful, and the air flow jetting direction of said stretch nozzle changes mouthful towards said direction.
5. as claim 1 or 2 said weft tension applicators, it is characterized in that,
Said stretch nozzle comprise as its at least a portion, from said path of navigation or from the place ahead of this path of navigation towards the decline path of below,
Said stretch nozzle is arranged on the said passage forming body and can makes parallel crooked in said stretch nozzle, said passage forming body has the terminal consecutive tributary circuit with said decline path, this tributary circuit only has from the outlet of the lower opening of passage forming body, the direction that said stretch nozzle has the downstream that is positioned at said decline path changes mouth, and the air flow jetting direction of said stretch nozzle changes mouth towards said direction.
6. as claim 1 or 2 said weft tension applicators, it is characterized in that, said stretch nozzle is arranged on the back side one side of the reed that forms said path of navigation, and air-flow is horizontally through the introducing port that is blown into said stretch nozzle behind the said path of navigation after this stretch nozzle ejection.
7. as the said weft tension applicator of claim 6, it is characterized in that, between the back side of said stretch nozzle and said reed, be provided with elastomeric material.
8. as claim 1 or 2 said weft tension applicators, it is characterized in that, said stretch nozzle is the side among the 1st stretch nozzle and the 2nd stretch nozzle at least, and the air flow jetting direction of the 1st stretch nozzle and the air flow jetting direction of the 2nd stretch nozzle intersect in said stretch nozzle.
9. as the said weft tension applicator of claim 8, it is characterized in that, said passage forming body has the consecutive tributary circuit in position midway with said stretch nozzle, this tributary circuit is at the outside opening of passage forming body, and the air flow jetting direction of said the 1st stretch nozzle and the air flow jetting direction of said the 2nd stretch nozzle intersect at the two connecting portion place of said stretch nozzle and said tributary circuit.
10. as claim 1 or 2 said weft tension applicators, it is characterized in that the explain of said pipe is with the mode that intersects with the said path of navigation downstream towards this path of navigation.
11., it is characterized in that said stretch nozzle only has from the outlet of the lower opening of said passage forming body as claim 1 or 2 said weft tension applicators.
12. as claim 1 or 2 said weft tension applicators, it is characterized in that said air-jet loom possesses the slay with support slot, said picking all is installed on the said slay by said support slot with nozzle and said passage forming body.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004043063 | 2004-02-19 | ||
| JP043063/2004 | 2004-02-19 | ||
| JP2004210629A JP4410048B2 (en) | 2004-02-19 | 2004-07-16 | Weft tension applying device in jet loom |
| JP210629/2004 | 2004-07-16 | ||
| PCT/JP2005/002339 WO2005080651A1 (en) | 2004-02-19 | 2005-02-16 | Weft tension device for jet looms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1922349A CN1922349A (en) | 2007-02-28 |
| CN1922349B true CN1922349B (en) | 2011-11-16 |
Family
ID=34889336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580005346XA Active CN1922349B (en) | 2004-02-19 | 2005-02-16 | Weft tension device for jet looms |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP2495360B1 (en) |
| JP (1) | JP4410048B2 (en) |
| CN (1) | CN1922349B (en) |
| WO (1) | WO2005080651A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1897981A1 (en) * | 2006-09-07 | 2008-03-12 | Sultex AG | Process and stretching device for holding a weft thread |
| BE1017893A5 (en) * | 2007-12-10 | 2009-10-06 | Te Strake Textile Bv | Weft thread stretching device for weaving machine, has input portion formed over distance close to U-shaped channel insertion, and blower provided near entrance of conduction element |
| KR101031270B1 (en) | 2009-02-26 | 2011-04-29 | (재)한국섬유기계연구소 | Yarn stretch system of air jet loom |
| JP5365268B2 (en) * | 2009-03-06 | 2013-12-11 | 株式会社豊田自動織機 | Weft detection device in jet loom |
| JP5369915B2 (en) * | 2009-06-11 | 2013-12-18 | 株式会社豊田自動織機 | Weft tension applying device for air jet loom |
| BE1019614A3 (en) | 2009-07-01 | 2012-09-04 | Picanol | DEVICE AND METHOD FOR THE CATCHING AND PIECE OF IMPACT WIRES IN WEAVING MACHINES. |
| EP2348144A1 (en) * | 2010-01-26 | 2011-07-27 | ITEMA (Switzerland) Ltd. | Pneumatic stretching device of the weft thread for air-jet weaving looms, with a weft deflecting head arranged inside the launch channel of the reed |
| JP6119715B2 (en) * | 2014-10-27 | 2017-04-26 | 株式会社豊田自動織機 | Weft tension applying device for air jet loom |
| JP2022014545A (en) * | 2020-07-07 | 2022-01-20 | 株式会社豊田自動織機 | Weft tensioning device |
| JP2023156763A (en) * | 2022-04-13 | 2023-10-25 | 株式会社豊田自動織機 | Weft tensioning device for air jet loom |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1365903A (en) * | 1970-08-07 | 1974-09-04 | Teijin Ltd | Method of and apparatus for controlling weft tension in a jet loom |
| NL7206367A (en) | 1972-05-10 | 1973-11-13 | ||
| NL7605882A (en) | 1976-05-31 | 1977-12-02 | Rueti Te Strake Bv | WEAVING MACHINE. |
| JPS6063580U (en) | 1983-10-04 | 1985-05-04 | 津田駒工業株式会社 | Weft tension device for shuttleless looms |
| JPS61147287U (en) * | 1985-02-28 | 1986-09-11 | ||
| JPS61147286U (en) * | 1985-03-01 | 1986-09-11 | ||
| JPH0444634Y2 (en) * | 1986-04-15 | 1992-10-21 | ||
| JPH0643188Y2 (en) | 1989-02-28 | 1994-11-09 | 津田駒工業株式会社 | Weft tensioning device for loom |
| BE1006073A3 (en) * | 1992-07-03 | 1994-05-03 | Picanol Nv | Impact guard for looms. |
| JPH07279001A (en) * | 1994-03-31 | 1995-10-24 | Toyota Autom Loom Works Ltd | Weft tension-imparting device in jet loom |
| JP4057086B2 (en) | 1997-01-14 | 2008-03-05 | 株式会社豊田自動織機 | Weft tension applying device in jet loom |
-
2004
- 2004-07-16 JP JP2004210629A patent/JP4410048B2/en not_active Expired - Lifetime
-
2005
- 2005-02-16 EP EP12004120.7A patent/EP2495360B1/en active Active
- 2005-02-16 EP EP05719191A patent/EP1722019B1/en active Active
- 2005-02-16 WO PCT/JP2005/002339 patent/WO2005080651A1/en active Application Filing
- 2005-02-16 CN CN200580005346XA patent/CN1922349B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2495360A1 (en) | 2012-09-05 |
| JP2005264416A (en) | 2005-09-29 |
| JP4410048B2 (en) | 2010-02-03 |
| CN1922349A (en) | 2007-02-28 |
| EP2495360B1 (en) | 2013-07-24 |
| EP1722019A1 (en) | 2006-11-15 |
| EP1722019B1 (en) | 2012-08-01 |
| WO2005080651A1 (en) | 2005-09-01 |
| EP1722019A4 (en) | 2009-08-12 |
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