CN1041005C - Apparatus for supplying weft - Google Patents
Apparatus for supplying weft Download PDFInfo
- Publication number
- CN1041005C CN1041005C CN95104028A CN95104028A CN1041005C CN 1041005 C CN1041005 C CN 1041005C CN 95104028 A CN95104028 A CN 95104028A CN 95104028 A CN95104028 A CN 95104028A CN 1041005 C CN1041005 C CN 1041005C
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- mentioned
- gas passage
- ring bodies
- weft
- pressure
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- 239000012530 fluid Substances 0.000 claims abstract description 19
- 238000009941 weaving Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 107
- 230000000694 effects Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 25
- 230000009471 action Effects 0.000 description 20
- 210000000080 chela (arthropods) Anatomy 0.000 description 10
- 230000009183 running Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000002788 crimping Methods 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
- D03J1/00—Auxiliary apparatus combined with or associated with looms
- D03J1/04—Auxiliary apparatus combined with or associated with looms for treating weft
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
The invention provides a device for sending weft for a fluid jetting weaving machine, capable of preventing end breakage of weft. This device for sending weft is equipped with a ring-shaped material which is installed between a waft feeding material stored with weft and a nozzle, is wound with the weft, revolved by a rotator held on a driving member and driven, a supporting member which is provided with a first gas route and a second gas route for connecting a high- pressure air supplying means and a connecting and separating means for the ring-shaped material and the rotator and a control means for regulating a thread handling unit having a vacuum generating means for making the first and the second routes under negative pressure and the high-pressure air supplying means.
Description
The present invention relates to a kind of apparatus for supplying weft, in more detail, the present invention be about a kind of can be arranged on the weft yarn supply unit and to yarn with between the nozzle and the apparatus for supplying weft controlled of the driving of the ring bodies of the weft yarn of reeling.
In the past, fluid jet type weaving machine had water jet looms and air-jet loom, and these looms all are with heald frame the last warp thread of warp thread and following warp thread alternately to be formed peristome mutually repeatedly, with reed weft yarn was beaten up and was made into cloth at this peristome simultaneously.And, by apparatus for supplying weft one or more weft yarn is fed in the peristome of warp thread by existing fixed length at every turn, on the position of regulation, this weft yarn is cut off with cutter.
The apparatus for supplying weft of relevant these fluid jet type weaving machines once proposed some schemes, only for example have from the weft yarn of the bobbin unwinding certain-length of Weft feeder structure, it is wound on the reel of taper side face, uses the nozzle ejection fluid, this weft yarn is delivered to the peristome of warp thread; Perhaps the weft yarn that gets off from the bobbin unwinding of Weft feeder structure is clamped, sent to the turning power of driven roller, and use from the fluid of nozzle ejection this weft yarn is delivered in the peristome of warp thread with driven roller and driven voller.
But, in the above-mentioned existing apparatus for supplying weft, preceding a kind of device is to use from the fluid of nozzle ejection the weft yarn that is wound on the reel is fed in the peristome of warp thread, thereby have because of on weft yarn, having added bigger tension force and form breakage of weft, or the nozzle burden increases, cause the essential increasing of fluid pressure, and the problem that running expense is increased along with the energy expenditure increase.
Then a kind of apparatus for supplying weft, owing to be to clamp weft yarn, it is transported to nozzle by the turning power of driven roller with driven roller and driven voller, but the device that weft yarn is not added the device of tension force or the weft yarn sent to is stopped, thereby the length of weft yarn that is advanced to Warp opening portion is uneven, and the more problem of weft yarn loss that makes is arranged.
The present invention makes in order to solve above-mentioned these problems, and its objective is provides a kind of and can prevent breakage of weft, can reduce the weft yarn loss, can alleviate nozzle exit pressure, can reduce the apparatus for supplying weft that the fluid jet loom of energy expenditure and running expense is used.
At first, first kind of apparatus for supplying weft provided by the invention, it is to use from the fluid of nozzle ejection to use being housed in the fluid jet type weaving machine that the weft yarn on the weft yarn yarn feeding body is fed in the Warp opening portion, and it has the ring bodies that is arranged on the above-mentioned weft yarn of reeling that the revolving body that supported by drive member between above-mentioned weft yarn yarn feeding body and the said nozzle drives; Be provided with the yarn carrier assembly of the arrangement of clutch that makes above-mentioned revolving body and ring bodies clutch; Control the control device of above-mentioned arrangement of clutch; And above-mentioned arrangement of clutch has the pressure-air feedway and the supporting mass of the above-mentioned ring bodies of reeling, on this supporting mass, form gases at high pressure that above-mentioned pressure-air feedway is supplied with the 1st gas passage, with 2nd gas passage of above-mentioned gases at high pressure towards the direction guiding that above-mentioned ring bodies is separated with above-mentioned revolving body towards the direction guiding that above-mentioned ring bodies is contacted with above-mentioned revolving body.
Second kind of apparatus for supplying weft provided by the invention, its above-mentioned arrangement of clutch has a supporting mass, form gases at high pressure that the pressure-air feedway is supplied with the 1st gas passage thereon towards the direction guiding that ring bodies is contacted with revolving body, with the 2nd gas passage towards the direction guiding that above-mentioned ring bodies is separated with revolving body, in above-mentioned such apparatus for supplying weft, also be provided with a vacuum generating device, its effect is when gases at high pressure being supplied in the 1st gas passage, makes the 2nd gas passage be in negative pressure; When gases at high pressure being supplied in the 2nd gas passage, make the 1st gas passage be in negative pressure.
The third apparatus for supplying weft provided by the invention is in having the apparatus for supplying weft of above-mentioned feature, form above-mentioned ring bodies with the magnetic member, above-mentioned arrangement of clutch has the 1st executive component that is arranged on the above-mentioned revolving body and is arranged on the 2nd executive component on the above-mentioned supporting mass, and the 1st executive component is that the gases at high pressure of above-mentioned pressure-air feedway supply are being worked when making above-mentioned ring bodies with direction guiding that above-mentioned revolving body contacts in the 1st gas passage; The 2nd executive component is that above-mentioned gases at high pressure are being worked when making above-mentioned ring bodies with direction guiding that above-mentioned revolving body separates in above-mentioned the 2nd gas passage.
Below, explain the present invention again, invent from above-mentioned first, gases at high pressure in the pressure-air feedway supplies to the 1st gas passage the time,, gases at high pressure are ejected on the above-mentioned ring bodies by this path, and ring bodies is crimped on the revolving body; In the time of in gases at high pressure are fed into the 2nd gas passage, just be ejected on the ring bodies, ring bodies is separated with revolving body from this path.
From second above-mentioned invention, when the arrangement of clutch action that the gases at high pressure feedway is constituted, be wound on by on the revolving body of drive member supporting and the supporting member and driven ring bodies unceasingly with the revolving body clutch, make the weft yarn that is wound on the ring bodies supply in the nozzle discontinuously, when gases at high pressure in the pressure-air feedway supplies to the 1st gas passage the time, ring bodies is crimped on the revolving body, at this moment negative pressure takes place in the effect owing to vacuum generator in the 2nd gas passage, thereby ring bodies more closely is crimped on the revolving body.On the other hand, in the time of in gases at high pressure are fed into the 2nd gas passage, ring bodies separates with revolving body, meanwhile because the effect of vacuum generator, negative pressure takes place in the 1st gas passage, ring bodies is attracted on the periphery of supporting member, further promotes separating of ring bodies and revolving body.
From the 3rd above-mentioned invention, gases at high pressure in the pressure-air feedway supplies to the 1st gas passage the time, gases at high pressure are ejected on the above-mentioned ring bodies by this path, the 1st executive component works when ring bodies is crimped on the revolving body becomes electromagnet, and the ring bodies that magnetic is formed is drawn onto on the revolving body.
In the time of in above-mentioned gases at high pressure are fed into above-mentioned the 2nd gas passage, gases at high pressure are ejected on the above-mentioned ring bodies by this path, ring bodies is separated with revolving body, and meanwhile the 2nd executive component works, becomes electromagnet, and ring bodies is attracted on above-mentioned supporting mass.
Adopt the present invention, owing to can control motion from the ring bodies of weft yarn to nozzle that supply with off and on, can simplified structure, save the energy, reduce the equipment operating cost, and can reduce the weft yarn loss in the device action.In addition,, both friction and frictional heat can be reduced, the durability of ring bodies can be improved because supply air between ring bodies and the contact component.
Adopt the present invention, ring bodies rotates intermittently by the arrangement of clutch of revolving body and ring bodies, on the other hand, the injection fluid of weft yarn by stretcher, nozzle and ring bodies between apply friction because the interrupted rotation of ring bodies, carry weft yarn to nozzle off and on, therefore, the nozzle injection pressure that the output weft yarn is used can be reduced, the burden of nozzle can be alleviated, prevent the phenomenon of weft yarn broken string, can also save consumption of consumed fluid.In addition, because it is consistent with the direction that moves of weft yarn to be wound on the coiling direction of the weft yarn on the ring bodies, the resistance that does not have contact portion to cause, because the arrangement of clutch by ring bodies and revolving body rotates ring bodies intermittently, can successfully carry out the driving of ring bodies and stop, do not apply big tension force when weft yarn is carried, the phenomenon that can occur breaking not is applicable to the picking of the senior yarn of the superfine yarn of paying attention to quality etc.
On the structure of device, roughly difference is revolving body, ring bodies and supporting mass, owing to there is not the movable part in centre as the arrangement of clutch of ring bodies, can reduce the quantity of part, and cheap device is provided.In addition, in ring bodies drives, and form air layer between the supporting member, prevent the ring bodies wearing and tearing, and owing to do not have middle movable part, thereby can make the maintenance and repair of device easy.
Power source as revolving body can by a plurality of yarn carrier assemblies being connected on the driving shaft of motor, can being carried a plurality of yarn kinds, and can be arranged on the narrow place, thereby can obtain very big economic effect with a motor.
Accompanying drawing is simply described as follows:
Fig. 1 is the schematic configuration schematic diagram that the fluid jet type weaving machine of apparatus for supplying weft of the present invention is used in expression;
Fig. 2 is the structural representation of expression the present invention the 1st embodiment;
Fig. 3 (a) is the schematic diagram of supplying weft operating state of the apparatus for supplying weft of expression the 1st embodiment;
Fig. 3 (b) is the schematic diagram of the above-mentioned action halted state of expression;
Fig. 4 (a) is the schematic diagram of operating state of the apparatus for supplying weft of expression the present invention the 2nd embodiment;
Fig. 4 (b) is the schematic diagram of supplying weft action halted state of the apparatus for supplying weft of above-mentioned the 2nd embodiment of expression;
Fig. 5 is the structure chart of expression the present invention the 3rd embodiment;
Fig. 6 (a) is the schematic diagram of supplying weft operating state of the apparatus for supplying weft of expression the 3rd embodiment;
Fig. 6 (b) is the schematic diagram of the above-mentioned action halted state of expression.
Below, with reference to embodiment shown in the drawings, structure of the present invention and action effect are described in detail.
With reference to accompanying drawing the present invention the 1st embodiment is described earlier.Among Fig. 1, a kind of air injection type loom in the symbol 1 expression fluid jet type weaving machine (following, be referred to as " loom ").This loom 1 mutually alternately is concatenated to form peristome 2a with the last warp thread of warp thread 2 with following warp thread by the heald frame that does not have expression among the figure, weft yarn 3 is delivered in the peristome 2a simultaneously, this weft yarn 3 is beaten up and be made into cloth 6 with reed 5 by apparatus for supplying weft 4 of the present invention with by the fluid that air flow constitutes.
And weft yarn 3 is to be delivered in the peristome 2a of warp thread 2 by predetermined length by apparatus for supplying weft 4 at every turn, on the position of regulation, by the shearing device of cutter and so on this weft yarn 3 is cut off.The action of this loom 1 is synchronously carried out with the revolution that figure goes up the main shaft that does not have expression.
Apparatus for supplying weft 4 is to dispose stretcher 9, pincers latitude device 11 successively and along the yarn carrier assembly 10 of sending weft yarn 3 with the feeding direction of the weft yarn shown in the arrow A 3 between weft yarn yarn feeding body 7 that is made of bobbin etc. and main burner 8., be sent in the main burner 8 after on yarn carrier assembly 10, closely reeling more than the circle by stretcher 9, pincers latitude device 11 from the weft yarn 3 of weft yarn yarn feeding body 7 output.
Using the nozzle that tension force is added to the contrainjection on the weft yarn 3 on the stretcher 9, it is the air of the air supply source output of not representing on the figure that connects by valve 22, sprays along the opposite direction with the weft yarn feeding direction shown in the arrow A, is controlled by valve 22 from the air of this nozzle ejection.
Owing to will vertically send to respect to warp thread 2 from the weft yarn 3 of weft yarn yarn feeding body 7 output, thereby main burner 8 and stretcher 9 all be that approximate horizontal ground is being provided with, and being gone up by figure not have the air of the air supply source supply represented being controlled by main valve 23.Bypass by there not being expression on the figure that is set up in parallel with main valve 23, weft yarn 3 often is not fed to the micro-air from the output of air supply source in the main burner 8 with all not sent to, thus the lax elimination of weft yarn 3.Auxiliary jet 24,25 is being controlled the air of being gone up the air supply source ejection that does not have expression by figure by secondary valve 26,27.Hand switch 28 is the hand switches that make pincers latitude device 11 closed usefulness.Arrive near the sensor 29 that is setting the leading section 3b that detects the weft yarn of being sent here 3 reed 5 of an example at the leading section 3b of weft yarn 3.
10 of yarn carrier assemblies as Fig. 2, shown in Figure 3, be clutch action by pressure-air transmission device control drive pulley 14 and belt 15.
Supporting mass 40 portion within it forms the 1st gas passage 41 and the 2nd gas passage 42 that is connected with pressure-air feedway 43 respectively, and it is fixed on the side plate of the device that there is not expression on the figure.The 1st air flue 41 be pressure-air that pressure-air feedway 43 is supplied with towards the direction guiding that belt 15 is contacted with drive pulley 14, on the demifacet 40A of the supporting mass 40 that faces toward with recess 40a, form.It is in the arc-shaped that the peripheral curved 40b of the demifacet 40A of the 1st gas passage 41 and supporting mass 40 similarly makes flat shape.The air inflow aperture 41a of the air that acceptance is supplied with by pressure-air feedway 43 and pressure-air is discharged to air outflow port 41b between belt 15 and the peripheral curved 40b is communicated with for 41 li in this 1st gas passage.An air inflow aperture 41a is set on the 40d of the side of supporting mass 40, on peripheral curved 40b, offers a plurality of air outflow port 41b that arranging.
The 2nd gas passage 42 be the pressure-air of supplying with by pressure-air feedway 43 towards the direction guiding that drive pulley 14 is separated with belt 15, shown in Fig. 3 (a), Fig. 3 (b), be provided in respectively on the both sides of recess 40a.The 2nd gas passage 42 is made into and roughly is ＂ c ＂ font, and the air inflow aperture 42a that forms on two positions by side 40d is communicated with.The air outflow port 42b that pressure-air is discharged between drive pulley 14 and the belt 15 is communicated with the 2nd gas passage 42 on both sides.On the peripheral curved 40c of the supporting mass 40 of the open side of recess 40a, arrange and offering obliquely a plurality of air outflow port 42b.The weft yarn 3 of on belt 15, reeling and changing direction by pin 13.In the present embodiment, air outflow port 41b, 42b are made of a plurality of holes, but also can make the opening of the slit-shaped of the length direction extension of prolonging peripheral curved 40b, 40c.
Pressure-air feedway 43 is in the control of control device 30, and drive pulley 14 is driven by motor 12 and is in turn state, and weft yarn 3, is being supplied to pressure-air in the air inflow aperture 41a when sending to towards supplying weft direction (being the arrow A direction); When not carrying out the sending to of weft yarn 3, promptly be in idling conditions or when unusual, pressure-air supplied to air inflow aperture 42a at loom 1.Like this, in the present embodiment, constitute arrangement of clutch S shown in Figure 1 by pressure-air feedway 43 and supporting mass 40.
Under the occasion in the peristome 2a that weft yarn 3 is delivered to warp thread shown in Figure 1 with this structure, promptly when carrying out supplying weft, drive pulley 14 is turned round along clockwise direction by the revolution of driving shaft 12a, pressure-air is supplied in the air inflow aperture 41a simultaneously.Immediately shown in Fig. 3 (a), the pressure-air of being supplied with is by the 1st gas passage 41, be ejected into simultaneously on the inner peripheral surface of the belt 15 that is positioned at peripheral curved 40b side from air outlet 41b.At this moment, by expulsion pressure belt 15 is pressed to the top shown in Fig. 3 (a), be crimped on with making belt 15 tensionings that are positioned at peripheral curved 40c side and carry out on the rotating drive pulley 14, the revolution of belt pulley 14 passes to belt 15, thus weft yarn 3 is sent to.Owing between peripheral curved 40b and belt 15, form air layer again, thereby can eliminate belt 15 in driving and the friction between periphery 40b by the air that sprays.
On the other hand, when loom 1 is in idling conditions or breaks down, cutting off to the pressure-air that air inflow aperture 41a provides, it is made into to provide pressure-air to air inflow aperture 42a by pressure-air feedway 43 by control loop 30.The pressure-air of being supplied with is immediately by the 2nd gas passage 42, be ejected into simultaneously on the inner peripheral surface of the belt of with drive pulley 14 crimping 15 from the air outlet 42b on both sides.Belt 15 become from the state of Fig. 3 (a) be pressed towards the below shown in Fig. 3 (b) like that, separate by at this moment expulsion pressure, cut off the turning power that passes to belt 15 from belt pulley 14 thus, the yarn that send of weft yarn 3 is stopped with drive pulley 14.At this moment, because belt 15 is pressed towards the below, the belt 15 that is positioned at peripheral curved 40b side just is tensioned, and is crimped on the peripheral curved 40b.By at this moment belt 15 and the friction between peripheral curved 40b rotating belt 15 is braked.
In the present embodiment, when belt 15 and peripheral curved 40b crimping, promptly do not carry out weft yarn 3 send yarn the time, be that a pressure-air that feeds to air inflow aperture 41a is all cut off, but at this moment also can the pressure-air that such degree is removed in the crimping that does not make peripheral curved 40b and belt 15 be supplied in the air inflow aperture 41a.Like this, just can be cooled off the frictional heat between belt 15 and the peripheral curved 40b, can be prevented owing to the reduction of heating belt 15 durability that cause by the friction generation.
Below, the action of the loom 1 and the apparatus for supplying weft 4 of this structure is described.
(action of loom)
After the operator connects the power supply of loom 1, carry out the running of loom 1 and prepare and 1 entry into service of wait loom, when loom 1 does not turn round, pincers latitude device 11 cuts out by drive division 21.Be that the operator judges with range estimation whether weft yarn 3 leads in the main burner 8 from weft yarn yarn feeding body 7, weft yarn 3 not by the situation of leading in the main burner 8 from weft yarn yarn feeding body 7 under, then with handgrip weft yarn 3 from weft yarn yarn feeding body 7 draw, by stretcher 9, pincers latitude device 11 and yarn carrier assembly 10 and lead in the main burner 8.At this moment make weft yarn 3 on the yarn carrier assembly 10, promptly closely reeling on pin 13 and the belt 15 one the circle more than.
Like this, under the state that the running preparatory process finishes, weft yarn 3 is led in the main burner 8 and by pincers latitude device 11 from weft yarn yarn feeding body 7 is controlling weft yarn 3, by stretcher 9 back tension is acted on the weft yarn 3 simultaneously, makes weft yarn 3 be in halted state thus.In addition, the bypass by being set up in parallel with main burner 23, from scheming there be not the air supply source of expression that the air of trace is fed in the main burner 8 is added in tension force on the weft yarn 3, the lax releasing of weft yarn 3.
That is, control device 30 is opened main valve 23 in the moment that main shaft becomes about 90 degree, and aerojet is arrived in the main burner 8.At this moment, also opening, thereby the leading section of weft yarn 3 extends from clamping latitude device 11 to main burner 8, becoming flatly owing to clamp latitude device 11.
(action of apparatus for supplying weft)
Then, be in for about 100 moment of spending at main shaft, control device 30 control drive divisions 21, and pincers latitude device 11 is opened, by driving loop 20 CD-ROM drive motors 12, drive pulley 14 is turned round along clockwise direction.At this moment, gases at high pressure are supplied in the 1st gas passage 41 of supporting mass 40 by pressure-air feedway 43, make drive pulley 14 and belt 15 shown in Fig. 3 (a), be in contact condition, the revolution of this belt pulley 14 is passed to belt 15, the weft yarn 3 of reeling is sent to along arrow A direction (with reference to Fig. 1).
Arrive at auxiliary jet 24,25 at the front end 3b of weft yarn 3, main shaft is in the moment of about 120 degree, and control device 30 is opened secondary valve 26,27, and air is sprayed from auxiliary jet 24,25, by this air flow weft yarn 3 is fed in the peristome 2a.When detecting the front end 3b of this weft yarn 3, weft yarn 3 is cut off by the cutter that does not have expression among the figure that is configured between main burner 8 and the warp thread 2 by sensor 29.
Be in for about 140 moment of spending at main shaft, control device 30 cuts out main valve 23; Be in for about 250 moment of spending at main shaft, secondary valve 26,27 cuts out.Main valve 23 is earlier closed than secondary valve 26,27.Also can make and be in about 240 degree at main shaft and constantly control drive division 21, pincers latitude device 11 cuts out, perhaps when sensor 29 detected the front end of weft yarn 3, when closing secondary valve 26,27, control drive division 21 was closed pincers latitude device 11.
On the other hand, detect the front end 3b of weft yarn 3 when sensor 29, perhaps work as loom 1 and be in idling conditions, when not carrying out the sending to of weft yarn 3, by control device 30, the pressure-air that is provided by pressure-air feedway 43 is supplied in the 2nd gas passage 42 of supporting mass 40, gases at high pressure are sprayed to the inner peripheral surface of belt 15 by air outflow port 42b.Even separate with drive pulley 14 and the belt 15 shown in Fig. 3 (b), rotating belt 15 is crimped on the peripheral curved 40b by inertia, then owing to friction stops.
When the idling conditions of loom 1 is disengaged, become when making cut weft yarn 3 supply to state in the peristome 2a of warp thread 2 once more, stop in the 2nd gas passage of supporting mass 40, supplying with gases at high pressure by control device 30 from pressure-air feedway 43.Immediately, gases at high pressure are provided in the 1st gas passage of supporting mass 40, shown in Fig. 3 (a), the crimping of the peripheral curved 40b of belt 15 and supporting mass 40 are removed by pressure-air feedway 43.On the drive pulley 14 that belt 15 is crimped on turning round, belt 15 is turned round along clockwise direction by this belt pulley 14, thereby being wound on weft yarn 3 on the belt 15 along giving yarn direction (being the direction of arrow A) to send to.
Like this, in the present embodiment, when loom 1 is in the idle running process or carries out supplying weft, perhaps be in when unusual when loom 1, even drive pulley 14 is turning round, also can be transformed into pressure-air in each bar path, remove contacting of drive pulley 14 and belt 15 thus, thereby the yarn power (carrying capacity) of sending that can will act on the weft yarn 3 is cut off by control device 30.Can prevent that like this weft yarn 3 is subjected to excessive tension force, thereby can reduce the fracture of weft yarn 3.
When separating with drive pulley 14 owing to the belt 15 of yarn carrier assembly 10 again, to clamp after latitude device 11 cuts out, make weft yarn 3 can not revert to weft yarn yarn feeding body 7 one sides, thus can according to the action of yarn carrier assembly 10 weft yarn 3 each in accordance with regulations length, sent in the moment of regulation.Like this, just can reduce the burden of nozzle 8,24,25, reduce the pressure of air, and reduce the consumption of air, can also save energy, reduce the cost of running.
Also owing to can stop the weft yarns 3 that are sent to, thereby can make the length unanimity of the weft yarn 3 in the peristome 2a that delivers to warp thread 2, thereby can reduce the loss of weft yarn 3, can make simple in structure with pincers latitude device 11.And by control to the action of yarn carrier assembly 10, just can be at every turn the weft yarn 3 of random length in that the moment sent to arbitrarily.
Embodiment 2
Below, with reference to Fig. 4 an alternative embodiment of the invention is described.
Fig. 4 is illustrated on belt pulley 14 and the supporting mass 40 vacuum generator is set respectively, makes in the 2nd gas passage to be in negative pressure when gases at high pressure being supplied in the 1st gas passage; When gases at high pressure being supplied in the 2nd gas passage, make the structure that is in negative pressure in the 1st gas passage.
In Fig. 4, the pressurized gas inlet side of the 1st vacuum generator 46 is connected on the pressure-air feedway 43, and outlet side is connected on the 1st gas passage 41 through the 1st electromagnetic valve 48.The inlet side of the 1st vacuum generator 46 is connected on the 2nd gas passage 42 through the 2nd electromagnetic valve 49.
The pressurized gas inlet side of the 2nd vacuum generator 47 is connected on the pressure-air feedway 43, and outlet side is connected on the 2nd gas passage 42 through electromagnetic valve 49.The inlet side of the 2nd vacuum generator 47 is connected with the 1st gas passage 41 through the 1st electromagnetic valve 48.
Shown in Fig. 4 (a), when control loop 30 is supplied with gases at high pressure at pressure-air feedway 43 in the 1st gas passage 41,, open the valve of the 1st electromagnetic valve 48 for making gases at high pressure by the 1st vacuum generator 46 the 1st gas passage inlet 41a that leads.At this moment for making the negative pressure that produces by the 1st vacuum generator 46 the 2nd gas passage inlet 42a that leads, with the valve closing of the 2nd electromagnetic valve 49.
By this action, gases at high pressure are ejected into supporting mass one side, thereby belt 15 towards with direction that drive pulley 14 contacts on be tensioned, the negative pressure that is being produced in the 2nd gas passage 42 of mouth is being opened in the contact position of drive pulley 14 and belt pulls to drive pulley 14 to belt 15 simultaneously, thereby the crimp force of belt 15 and drive pulley 14 is further increased.
In Fig. 4 (b), when pressure-air feedway 43 was supplied with gases at high pressure in the 2nd gas passage 42, control loop 30 was for the 2nd gas passage inlet 42a that the gases at high pressure by the 2nd vacuum generator 47 are led, with the valve open of the 2nd electromagnetic valve 49.At this moment for the negative pressure that the 2nd vacuum generator 47 is produced lead the 1st gas passage inlet 41a, with the valve closing of the 1st electromagnetic valve 48.
Owing to move with this, pressure-air is ejected into revolving body one side by the 2nd gas passage 42, thereby belt 15 towards the direction guiding that leaves drive pulley 14, and meanwhile, by the negative pressure that is produced in the 1st gas passage 41 of opening on supporting mass, belt 15 is drawn onto on the supporting mass 40, has encouraged belt 15 and left with drive pulley 14.
When carrying out such action repeatedly, when belt 15 and belt pulley 14 crimping, make belt 15 be attracted to belt pulley 14 more by the negative pressure that is produced in the 2nd gas passage, on the other hand when belt 15 separates with belt pulley 14 and is crimped on the supporting mass 40, by the negative pressure that is produced in the 1st gas passage belt is further inhaled to supporting mass 40, so the formation arrangement of clutch, and weft yarn 3 sent to along the arrow A direction.Like this, the positive pressure of pressure-air is arranged not only in the clutch process of belt and revolving body, also have the sucking action of negative pressure, can make the clutch of belt and drive pulley more reliable.
Below, with reference to Fig. 5, Fig. 6 the 3rd embodiment of the present invention is described.This embodiment is setting the electromagnet 44 that is used as the 1st executive component on the belt pulley 14 of the 1st embodiment, setting the electromagnet 45 that is used as the 2nd executive component on supporting mass 40, and is to form belt 15 with magnetic material.Therefore identical with the common element numeral of the 1st embodiment symbol, and omit explanation to them.
With the apparatus for supplying weft of this structure, pressure-air is supplied to the 1st gas passage 41 when interior from pressure-air feedway 43, pressure-air ejects, makes belt 15 to move so that separate with peripheral curved 40b from jet 41b, and contacts with belt pulley 14.At this moment, because electromagnet 44 also is magnetized, thereby belt 15 contacts with the belt pulley 14 that is turning round, and makes driving force pass to belt 15, and the weft yarn 3 that is wound on the belt 15 is sent to along direction shown in the arrow A.
In cutting off, supply with pressure-air to the 1st gas passage 41, when making to the 2nd gas passage 42 in the supply pressure-air into, pressure-air sprays from jet 42b, and belt 15 is moved towards the direction of leaving with belt pulley 14.Roughly side by side cut off energising, change, make its magnetization to electromagnet 45 energisings to electromagnet 44 with the switching motion of this pressure-air.Like this, belt 15 is just inhaled by magneticaction on the peripheral curved 40b of supporting mass, and braking is given in the revolution of belt 15, and makes the disconnection that contacts of belt pulley 14 and belt 15, thus make weft yarn 3 send yarn to move to stop.
Like this, owing to be when supplying with, 44,45 pairs of belts 15 of electromagnet to be worked, thereby just can carry out than the 3rd embodiment who carries out the clutch of belt 15 and belt pulley 14 with high pressure gas with control device 30 conversion pressure-airs more infalliblely.And the high-pressure air pressure of comparing, supplying with to the 1st, the 2nd each bar gas passage with the 3rd embodiment can have certain amplitude.
Device of the present invention as the above embodiments 1-3 can make the burden of nozzle alleviate, thereby can prevent breakage of weft, can make and simplify the structure, can save energy, reduce operating cost, and the weft yarn that can reduce in the device action process loses.In addition, because air is fed between ring bodies and the contact member, thereby just can reduce between the two friction and frictional heat, improve the durability of ring bodies.
Again because said apparatus of the present invention is the clutch action that carries out belt and supporting mass by the supply of conversion gases at high pressure, thereby can make designs simplification by the minimizing of number of packages in addition in the arrangement of clutch, and can make the arrangement of clutch miniaturization, can carry out clutch action infalliblely.
Also because among the present invention, ring bodies is the effect of the arrangement of clutch that is made of revolving body and ring bodies and revolution intermittently, on the other hand, fluid with stretcher, nozzle ejection is added in frictional force between weft yarn and the ring bodies again, like this, interrupted revolution by ring bodies makes weft yarn be transported to the nozzle place discontinuously, thereby can reduce expulsion pressure, the burden that can alleviate nozzle of sending the nozzle that weft yarn uses to, can prevent the fracture of weft yarn, and can save consumption of consumed fluid.
In addition, be consistent owing to be wound on the coiling direction of the weft yarn on the ring bodies, thereby do not have the resistance that causes by contact portion with the direct of travel of weft yarn; Again owing to the effect of the arrangement of clutch that constitutes by ring bodies and revolving body, ring bodies is turned round intermittently, thereby the driving of ring bodies, action such as stop and successfully to carry out; Also owing to do not apply big tension force when sending weft yarn to, thereby yarn breakage can not take place, can be applicable to preferably the quality awareness specification superfine senior yarn send yarn.
Also because the element of constituent apparatus is roughly distinguished just revolving body, ring bodies, supporting mass, also do not have movable link in the middle of what as the arrangement of clutch of ring bodies, thereby member is less, generator more cheaply; Again because in ring bodies driving process, between itself and supporting mass, formed air layer, thereby friction can be prevented, correspondingly the maintaining of device can be do not carried out easily with there being middle movable link to ring bodies.In addition, even the drive source of revolving body is with a motor, also can fetches by a plurality of yarn guiding assemblies are linked to each other with the driving shaft of motor and carry multiple yarn, thereby make the place of setting can be less, corresponding economic effect but can be bigger.
Claims (3)
1, apparatus for supplying weft, it is to use from the fluid of nozzle ejection to use being housed in the fluid jet type weaving machine that weft yarn on the weft yarn yarn feeding body is fed in the opening of warp thread, it is characterized in that: have the ring bodies that is arranged on the above-mentioned weft yarn of reeling that the revolving body that supported by drive member between above-mentioned weft yarn yarn feeding body and the said nozzle drives; Be provided with the yarn carrier assembly of the arrangement of clutch that makes above-mentioned revolving body and ring bodies clutch; Control the control device of above-mentioned arrangement of clutch, and above-mentioned arrangement of clutch has the pressure-air feedway and the supporting mass of the above-mentioned ring bodies of reeling, on this supporting mass, form gases at high pressure that above-mentioned pressure-air feedway is supplied with the 1st gas passage, with 2nd gas passage of above-mentioned gases at high pressure towards the direction guiding that above-mentioned ring bodies is separated with above-mentioned revolving body towards the direction guiding that above-mentioned ring bodies is contacted with above-mentioned revolving body.
2. apparatus for supplying weft as claimed in claim 1, it is characterized in that: above-mentioned arrangement of clutch is provided with supporting mass, on this supporting mass, form gases at high pressure that the pressure-air feedway is supplied with the 1st gas passage towards the direction guiding that ring bodies is contacted with revolving body, with the 2nd gas passage towards the direction guiding that above-mentioned ring bodies is separated with revolving body, above-mentioned arrangement of clutch also is provided with vacuum generating device, its effect is, when gases at high pressure being supplied in the 1st gas passage, make in the 2nd gas passage to be in negative pressure; When gases at high pressure being supplied in the 2nd gas passage, make in the 1st gas passage to be in negative pressure.
3. apparatus for supplying weft as claimed in claim 1, it is characterized in that: above-mentioned ring bodies is to form with the magnetic member, above-mentioned arrangement of clutch has the 1st executive component that is arranged on the above-mentioned revolving body and is arranged on the 2nd executive component on the above-mentioned supporting mass, and the 1st executive component is that the gases at high pressure of above-mentioned pressure-air feedway supply are being worked when making above-mentioned ring bodies with direction guiding that above-mentioned revolving body contacts in the 1st gas passage; The 2nd executive component is that above-mentioned gases at high pressure are being worked when making above-mentioned ring bodies with direction guiding that above-mentioned revolving body separates in the 2nd gas passage.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6033597A JPH07243156A (en) | 1994-03-03 | 1994-03-03 | Apparatus for delivering weft yarn |
| JP33597/94 | 1994-03-03 | ||
| JP2638695A JPH08218250A (en) | 1995-02-15 | 1995-02-15 | Device for sending weft |
| JP26386/95 | 1995-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1125791A CN1125791A (en) | 1996-07-03 |
| CN1041005C true CN1041005C (en) | 1998-12-02 |
Family
ID=26364164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95104028A Expired - Fee Related CN1041005C (en) | 1994-03-03 | 1995-03-03 | Apparatus for supplying weft |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR950032776A (en) |
| CN (1) | CN1041005C (en) |
| TW (1) | TW286331B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194593B (en) * | 2018-01-05 | 2021-01-15 | 南京迪宝磁电磨具有限公司 | Non-contact tensioning device for large-center-distance flat belt transmission |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109751A (en) * | 1984-12-22 | 1986-07-09 | 株式会社丰田自动织机制作所 | Introduce the weft storage device of fluid jet loom |
| CN1046766A (en) * | 1989-04-29 | 1990-11-07 | Iro有限公司 | Yarn stores feed unit and control method thereof |
| CN1054624A (en) * | 1990-03-07 | 1991-09-18 | 索布莱维工业企业专利公司 | Yarn feeding device |
-
1995
- 1995-03-02 TW TW084101957A patent/TW286331B/zh active
- 1995-03-03 CN CN95104028A patent/CN1041005C/en not_active Expired - Fee Related
- 1995-03-03 KR KR1019950004376A patent/KR950032776A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109751A (en) * | 1984-12-22 | 1986-07-09 | 株式会社丰田自动织机制作所 | Introduce the weft storage device of fluid jet loom |
| CN1046766A (en) * | 1989-04-29 | 1990-11-07 | Iro有限公司 | Yarn stores feed unit and control method thereof |
| CN1054624A (en) * | 1990-03-07 | 1991-09-18 | 索布莱维工业企业专利公司 | Yarn feeding device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW286331B (en) | 1996-09-21 |
| CN1125791A (en) | 1996-07-03 |
| KR950032776A (en) | 1995-12-22 |
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