CN1135543A - Weft-inserting apparatus of rapier loom - Google Patents
Weft-inserting apparatus of rapier loom Download PDFInfo
- Publication number
- CN1135543A CN1135543A CN96101365A CN96101365A CN1135543A CN 1135543 A CN1135543 A CN 1135543A CN 96101365 A CN96101365 A CN 96101365A CN 96101365 A CN96101365 A CN 96101365A CN 1135543 A CN1135543 A CN 1135543A
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- China
- Prior art keywords
- arrow shaft
- belt
- rapier wheel
- rapier
- band
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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
- D03D47/27—Drive or guide mechanisms for weft inserting
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/275—Drive mechanisms
- D03D47/276—Details or arrangement of sprocket wheels
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/271—Rapiers
- D03D47/272—Rapier bands
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/275—Drive mechanisms
-
- 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
- D03D47/27—Drive or guide mechanisms for weft inserting
- D03D47/277—Guide mechanisms
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
An abb inserting device in a rapier loom includes a rapier wheel, the periphery of which is provided with a batch of connecting salients according to the preset distance; a flexible rapier belt, one end of which is fixedly provided with a griper head and the long direction is provided with a row of connecting holes. The griper belt enwinds on the griper wheel in a reversal state and leads the connecting salients to be matched in the connecting holes. The position that two compression rollers rotatablely arranged at corresponding to the location that the griper belt deviates the griper wheel is provided a with circulating strap which enwinds on the griper wheel, the two compression rollers and one drag roller but not disturbs the griper belt. The part of the strap enwinding the griper wheel and the external diameter of the compression roller are designed to lead the reciprocating speed of the griper belt to be consistent with the circle speed of the contact part between the compression roller and the griper belt.
Description
The present invention relates to the Weft-inserting apparatus in the Rapier looms, specifically, relate to a kind of belt that adopts flexible distortion to have the band of rigidity (flexible rapier) Weft-inserting apparatus.
Above-mentioned this Weft-inserting apparatus comprises a kind of arrow shaft band, fixes a bar head on its end; Also comprise a rapier wheel, on it, be with round above-mentioned arrow shaft.This rapier wheel comes back rotation, cause being fixed on arrow shaft with on gripper head enter in the weft yarn opening, and therefrom withdraw from so that insert weft yarn.Rotate the action of centrifugal force produce by rapier wheel then, will be used for making arrow shaft band floating masterpiece of opening from the rapier wheel periphery to be used for arrow shaft being with.
As shown in Figure 7, show in No. 60-40538, the Japanese patent gazette and understand a kind of equipment, be used for making the example of arrow shaft with reciprocating device comprising having.In this kind equipment, the arrow shaft that is fixed with a gripper head 60 on the far-end centers on to a rapier wheel 62 with 61 and becomes such state, promptly names its base end part to be around to regularly on the periphery of rapier wheel 62.Speech is provided with two rollers 64,64 on rapier wheel 62, is used for preventing that arrow shaft is with the 61 free peripheries of opening rapier wheel 62.The rope 65 of reeling between rapier wheel 62 and two rollers 63,64 attaches to arrow shaft on the surface of the rapier wheel 62 that it centers on 61.As shown in Figure 8, on the periphery of two rollers 63,64, be formed with groove 63a, 64a, be used for guiding art rope 65.First roller 63 is arranged to incline with respect to the plane that comprises rapier wheel 62, and second roller 64 is positioned to and above-mentioned plane parallel.Rope 65 is fixed on the rapier wheel 62 with its two ends, and the coiled figure of eight is able to half periphery around whole periphery on the rapier wheel 62 and two rollers 63,64 simultaneously.These two rollers 63,64 are subjected to pushing of a spring (not showing bright), apply prestressing force to give rope 65 in one direction.
As disclosed in No. 53-111160 and 1-97235, the Japanese patent application (disclosing), also have some such equipment, they all are arranged to, make that have a row to connect projection is arranged on the periphery of rapier wheel in a circumferential direction, have row's connecting hole to be determined at arrow shaft on vertically simultaneously and be with.This arrow shaft band is wound up on the arrow shaft wheel with inverted status, and is coupled in the connecting hole to connect projection, and the back rotation of coming of rapier wheel sends the arrow shaft band by connecting projection to combining of connecting hole, and gripper head is the reciprocating motion by the reciprocal rotation of rapier wheel then.In 53-No. 111160 disclosed equipment of Japanese patent application (disclosing), reeled at arrow shaft band and be separated from the corresponding part back side, position one side of rapier wheel with the arrow shaft band pressure roller rotatably be set.In 1-No. 79235 disclosed equipment of Japanese patent application (disclosing), the pressing means that grease or lubricant by porous synthetic material dipping constitute is being set is regularly replacing pressure roller.
In the disclosed equipment, strengthened the gripper head stroke to adapt to the increase of knitting width in No. 54-156858, Japanese patent application (disclosing), arrow shaft band at this moment must repeatedly be wound up on the rapier wheel, perhaps must strengthen the diameter of rapier wheel.But the arrow shaft band of repeatedly reeling is very difficult.In addition, the diameter that strengthens rapier wheel can strengthen the moment of inertia significantly, will hinder the machine speed that increases Rapier looms like this and add power consumption.
In Japanese patent application melted 53-111160 and 54-No. 97235 disclosed equipment, the arrow shaft band was only reeled and is coupled on the part of the whole periphery of rapier wheel.Therefore the diameter of rapier wheel can reduce, and this helps improving the machine speed of arrow shaft loom.But in 53-No. 111160 disclosed equipment of Japanese patent application (disclosing), be provided with and be used for preventing the free pressure roller of arrow shaft band, these pressure rollers can form line with the arrow shaft band and contacts, the width that the length of contact portion then is with less than arrow shaft and be very short.So, easily between pressure roller and arrow shaft band, cause slip.Because pressure roller is pressed into the state that can not rotate of making it with arrow shaft band, this arrow shaft band after its direction of motion changes, specifically form slide after, the motion that just produces the inertia force of the above-mentioned roller of resistance immediately.In addition, this arrow shaft band also is easy to because of sliding friction causes wearing and tearing, and certain amount of friction just can increase power attenuation.In addition, owing to produce a large amount of heat in the sliding part branch of arrow shaft band, this arrow shaft band that includes resin shortens its life-span with regard to being easy to rotten.
In 1-No. 97235 disclosed equipment of Japanese patent application (disclosing), because the arrow shaft band is to make slide-and-guide by the pressing means that is impregnated with grease or lubricant, though this can reduce skimming wear, but when the arrow shaft band entered in the weft yarn opening, grease or lubricant polluted fabric with regard to the possibility splatter.
For solving above-mentioned traditional problem, a kind of Weft-inserting apparatus of providing Rapier looms to use promptly is provided one object of the present invention, it can be under the condition that does not increase the rapier wheel diameter adapts with the increasing of fabric width, and can improve the durability of arrow shaft band by avoiding sliding friction between arrow shaft band and the pressing means.
According to first part for achieving the above object of the present invention, a kind of Weft-inserting apparatus that is used for Rapier looms is provided, it includes a kind of flexible arrow shaft, this band is fixed on the gripper head with its first end and defines row's connecting hole on it is vertical, this batch connecting hole can engage with empty the rising of connection that is defined in by preset space length on the rapier wheel periphery, this kind arrow shaft band then is to be wound up on the arrow shaft wheel with inverted status, and above-mentioned connection projection is coupled in the connecting hole, wherein the reciprocating motion of gripper head by rapier wheel is inserted in the Warp opening and from wherein withdrawing from, weft yarn is inserted in the Warp opening.Above-mentioned Weft-inserting apparatus is assembled into, make pressure roller rotatably be set to that arrow shaft band is reeled and leave on the rear surface side of the corresponding part in position of rapier wheel with the arrow shaft band, be used for the rotation of rapier wheel is passed to the endless belt of pressure roller then in this wise around fixing between this rapier wheel, pressure roller and the jockey pulley, make this belt not combine with arrow shaft being with, the external diameter of the part of the rapier wheel that this belt of while is walked around and the external diameter of pressure roller are then set for, make that the reciprocating cutter speed of arrow shaft band is consistent with the peripheral speed of the pressure roller part of contact arrow shaft band.
Deposit at above cloth, doing back and forth, the reciprocating motion power of the rapier wheel of rotation passes to the arrow shaft band by aforementioned connection projection and connecting hole.The power that this arrow shaft band then passes through to be transmitted moves back and forth, and makes gripper head enter and withdraw from respect to a warp thread opening, thus yarn is held in this Warp opening.
In addition, deposit at above-mentioned cloth, aforementioned pressure roller is being oppressed that arrow shaft band is reeled and is being left the rear surface side of the corresponding part in position at rapier wheel place with the arrow shaft band.When rapier wheel rotated, pressure roller promptly rotated by described belt, made that the contact peripheral speed of part and reciprocating motion speed that arrow shaft is with of pressure roller and arrow shaft band is consistent.Pressure roller contacts as line with the situation that the arrow shaft band is same as in the legacy equipment.But different with situation in the legacy equipment is, the pressure roller here, but passes through to rotate around the belt between rapier wheel, pressure roller and the jockey pulley not because of frictional resistance rotates in its part that contact with the arrow shaft band.So, can between pressure roller and arrow shaft band, not cause slip, the arrow shaft that can prevent to wear and tear band.
Preferably straining pulley is located at slay one side with respect to rapier wheel, deposits at such cloth, even be provided with straining pulley, the overall width of loom can not increase.
Simultaneously, preferably arrow shaft band around to rapier wheel and pressure roller only with described belt contact position, this belt is wound up on the rapier wheel from arrow shaft band rear surface side.Therefore,, between arrow shaft band and rapier wheel, can not cause slip even the external diameter of pressure roller exists and some irrelevant variation of rapier wheel external diameter yet, and the arrow shaft band that can prevent to wear and tear.
According to one other component of the present invention, described pressure roller be rotatably fill put arrow shaft band institute around and leave on this part the rear surface side of the position at rapier wheel place answering mutually with arrow shaft being with, there is a belt to be wound on rapier wheel simultaneously and between roller and jockey pulley, and with the part of this belt in conjunction with the arrow shaft band along the advance rear surface side of part of circumference, a part is in conjunction with rapier wheel.
Deposit at above-mentioned cloth, described belt is pressed to rapier wheel with the arrow shaft band at the arrow shaft tape wrapping on the part of rapier wheel.Since this belt be arrow shaft band whole be in contact with it on the capable part of carrying out along circumference and both movement velocitys identical, so can not slide between the two, the arrow shaft that prevented to wear and tear is with.
Above-mentioned belt preferably is made of the round and elastic band, and the targeting part that is used for guiding this belt then is defined on such position with respect to rapier wheel, the phase place of this position on width with respect to the winding part displacement of arrow shaft band; Simultaneously each roller is defined a winding part, make this belt be able to above-mentioned guide part and therewith between the relevant position, arrow shaft tape wrapping position along wide to moving.
When the round and elastic band when the above-mentioned belt, this belt when reciprocating, with its part be pressed against securely the arrow shaft band do guided by the targeting part of rapier wheel and the guide channel of pressure roller simultaneously on this part the rear surface of circular motion.
Fig. 1 is the front view that the part of first embodiment is omitted;
Fig. 2 is the side view that the part of first embodiment is omitted;
Fig. 3 is the front view that the part of second embodiment is omitted;
Fig. 4 is the perspective view that the part of second embodiment is omitted;
Fig. 5 is the side view that the part of second embodiment is omitted;
Fig. 6 is the side view that shows that the part of a bright modified example is omitted;
Fig. 7 is the schematic side elevation of a conventional case; And
Fig. 8 is the amplification drawing in side sectional elevation along A among Fig. 7-A line.
First embodiment
Below referring to the Fig. 1 and the existing first embodiment of the present invention of 2 phaneroplasms.Fig. 1 is a front schematic view, show that the weft yarn of understanding a kind of Weft-inserting apparatus inserts initiating terminal one side, wherein, because inserting, weft yarn finishes right side and the above-mentioned initiating terminal one side symmetry that end one side is provided in a side of this equipment, so only to illustrate that this weft yarn inserts initial distolateral, and no longer show bright with describe this weft yarn and insert and finish end one side.
As shown in Figure 1, rapier wheel 3, arrow shaft are to be arranged on symmetrically on the left and right sides of the reed 2 that slay 1 supported with 4 with the driving mechanism of rapier wheel 3.Slay 1 by a slay to hold on a rocker 7.Slay 1 rotates around rocker 7 and with it.Driving shaft 8 rotatably just in time is located at the below of rocker 7.Driving shaft 8 is arranged to parallel with rocker 7, has a driven gear 9 to be installed in simultaneously it can be rotated with driving shaft 8.Servo motor 10 has an output shaft 10a, a driven wheel 11 is installed above it can be rotated with output shaft 10a.Driven wheel 11 is meshed with driven gear 9, thereby the rotation of servo motor 10 just props up 8 by these two gear transmission to driving.Because 10 of servo motors are complied with a direction and rotated, driving shaft 8 is also just only by a direction rotation.
At respectively declaring of driving shaft 8 a compound shedding cam 12 is installed, it can be rotated with driving shaft 8; On each end of rocker 7, a compound shedding cam bar 13 is housed simultaneously, it can be rotated with rocker 7.The compound rigidly connected cam mechanism of show elegant 2 and compound shedding cam bar 13 formations of stepping on, can make driving shaft 8 by it is the reciprocal rotation of rocker 7 in the rotational transform of a direction.The position of rocker 7 is rotated and is made slay 1 do swinging back and forth of front and back, inserts operation thereby make reed 2 carry out a kind of reed.
Each end of driving shaft 8 is provided with a crank axle 14 that tilts.On crank axle 14, rotatably be connected with a fork-shaped intermediate connector 15, and by the rotatably mounted bolster 16 of the latter.A rotatably mounted sector gear 17 on the mid portion of bolster 16.The crank axle 14 of this inclination, intermediate connector 5, bolster 16 have constituted a three-dimensional crank mechanism 18 with sector gear 17.
Week of rapier wheel along on determine a collection of chain by preset space length and connect projection 21.Arrow shaft is to be made and long to determining a collection of chain connecting hole 22 (seeing shown in Figure 2) along it by the bendable material of rigidity with 4, and these connecting holes 22 can be to connect projection 21 to cooperate.Arrow shaft be with 4 with inverted status around to bar wheel 3, and cooperate with connecting hole with above-mentioned connection projection.Be fixed with one on 4 first end arrow shaft and carry gripper head 23.These connect projection 21 and separate by suitable spacing with connecting hole 22, so that this kind projection can balancedly cooperate with hole 22.
Can change the position of sliding part 28 in supporting frame 27 by changing adjustment screw 29 with supporting frame 27 position of closing of twisting.Because the change of this position, the spring force of compression spring 30 also changes, and is regulated thus and changes the pressure of pressure roller 24,25 relative arrow shafts with 4.
As shown in Figure 2, be provided with groove 24b, 25b on the pressure roller 24,25 with on being connected projection 21 corresponding positions, connection projection 21 can be passed through wherein.On this side of slay 1, be provided with a jockey pulley 31 with respect to rapier wheel 3.This kills the endless belt 32 of reeling in this wise at rapier wheel 3, pressure roller 24,25 and jockey pulley 31, makes it not to be with 4 to touch and close with arrow shaft.Belt 32 passes to pressure roller 24,25 with the rotation of rapier wheel 3.Rapier wheel 3 these external diameters that centered on for belt 32 and the external diameter of pressure roller 24,25 be through setting for, makes arrow shaft with 4 reciprocating motion speed and pressure roller 24,25 consistent with the peripheral speed of the part of 4 touching positions with arrow shaft.
For example, these two parts of part that centered on for belt 32 with 4 parts that centered on and rapier wheel 3 for arrow shaft when rapier wheel 3 are when being formed by identical external diameter, and the external diameter that pressure roller 24,25 center on part for belt 32 is then different with 4 external diameters partly that contact with arrow shaft with them.Represent the radius of rapier wheel 3 now with R, represent the thickness that arrow shaft is with t, with r
1The expression pressure roller 24,25 with arrow shaft with 4 contact the part radius, again with r
2 Expression pressure roller 24,25 be 32 of belts around the radius of part, then can provide following formula
(R+t): r
1=R: r
2This can get silks
r
2=r
1-r
1T/ (R+t) also be pressure roller 24,25 the external diameter that center on part for belt 32 less than its with arrow shaft with 4 external diameters that contact partly.
On the other hand, when pressure roller 24,25 has same outer diameter as, rapier wheel 3 for arrow shaft be that 32 external diameters around this part of belt are different then with 4 external diameters with it around this part.Represent the radius of pressure roller 24,25 now with r, use R
1 Expression rapier wheel 3 for arrow shaft with 4 center on this part radius, again with R
2What represent rapier wheel 3 is 32 radiuses around this part of belt, and following formula is then arranged
(R
1+ t): r=R
2: r gets thus
R
2=R
1So+t, rapier wheel 3 for belt 32 just be equivalent to arrow shaft with 4 thickness with 4 radiuses for arrow shaft around the radius of part around this part greater than it.
The supporting structure of the axle 31a of straining pulley 31 is same as axle 24a, the 25a at roller 24,25 basically, has only replaced compression spring 30 with tension spring 33.Be between sliding part 28 and frame support bracket 26, to be provided with this kind tension spring 33 with upholding.Twist the position of closing mutually when changing when adjustment screw 29 and supporting frame 27, the position of sliding part 28 in supporting frame 27 also changes, and just changed the tension force of belt 32 thus.
The following describes the operation of Weft-inserting apparatus with said structure.
When servo motor 10 startings, driving shaft 8 promptly rotates according to a direction by driven wheel 11 and driven tooth 9.The rotation of this driving shaft 8 promptly is transformed to the reciprocal rotation of rocker 7 by compound shedding cam 12 and compound pedal-rod 13.The reciprocal rotation of rocker 7 makes slay 1 front and back swing back and forth, and causes reed 2 to carry out a kind of reed and claps operation.
The rotation of driving shaft 8 is transformed to the reciprocal rotation of rapier wheel 3 by three-dimensional crank mechanism 18 and driven gear 20.The thing of joining that the rapier wheel locust is back and forth rotated by connecting projection 21 and connecting hole 22 passes to bar band 4 it is moved back and forth.Arrow shaft short cause gripper head 23 and comes in and goes out in the warp thread perforate with 4 move back and forth.Rotate in the opposite direction mutually at right rapier wheel 3.So two gripper heads 23 just synchronously enter in the Warp opening mutually, withdraw from from Warp opening in wide the meeting then to the center of fabric.For the weft yarn (not showing bright) of carrying gripper head 23 to be transported in the warp thread aperture then is transported to reception bar head.Then, after the reception gripper head was withdrawn from from Warp opening, weft yarn promptly inserted in this Warp opening.
Because belt 32 is walked around the half cycle of rapier wheel 3 haply and is contacted with rapier wheel 3 under with suitable exert pressure at jockey pulley 31, so can between belt 32 and rapier wheel 3, not cause and skid.Also centered on the most weeks of pressure roller 24,25 and had suitable tension force to act on the belt 32, so also can between belt 32 and pressure roller 24,25, not produce slip owing to belt 32.
When pressing to arrow shaft with a roller that freely rotates and be with 4, this arrow shaft is just just revolted the moment of inertia of above-mentioned roller after it just changes the direction of motion with 4 motion.The result will cause slip between this roller and arrow shaft are with 4, easily make arrow shaft be with 4 wearing and tearing simultaneously.Pressure roller the 24, the 25th is done to rotate synchronously with rapier wheel 3 by the belt 32 that is driven by rapier wheel 3 reliably but as mentioned above.So even after arrow shaft has just been commutated with 4 the direction of motion, arrow shaft can not revolted the inertia force of pressure roller 24,25 yet with 4 motion.Result owing to avoided press than 24,25 and arrow shaft with the sliding friction between 4, arrow shaft is with 4 also just can not wear and tear because of sliding friction.In addition, also reduce power consumption and also can improve the durability that arrow shaft is with.
Owing to be provided with appropriate intervals connecting between projection 21 and the connecting hole 22,, meet the wall portion that projection 21 is just collided connecting hole 22 when arrow shaft during with 4 direction of motion change.But, just can reduce this collision because arrow shaft is that pressure roller 24,25 is pressed to rapier wheel 3 one sides with 4 at the two ends of its circular motion portion.
In addition, in this embodiment because jockey pulley 31 is provided in a side of this side with respect to rapier wheel 3 of slay 1, so, also can not strengthen the integral width of loom even be provided with this jockey pulley 31.Also because the tension force of belt 32 is easy to regulate by the position that changes jockey pulley 31 tension value that just can be easily this tension adjustment to one and loom rotating speed be adapted.
Notice as shown in Figure 1, can slay 1 vertically on chain guide plate 34 is set, this guide plate 34 can be guided arrow shaft and is with 4 its wide upwards combination with 4 two ends with arrow shaft.Guide plate 34 is set reduces crash rate when carrying gripper head 23 and receiving conveying weft yarn between the gripper head.
Second embodiment
Referring to Fig. 3 to 5 second embodiment is described below.The difference of this second embodiment and first embodiment is, the arrow shaft of this moment is by pressing to rapier wheel 3 around pair of rolls 35,36 and rapier wheel 3 these government officials' belt 37 with 4, rather than is directly oppressed by 24,25 of aforesaid pressure rollers.Used same numeral referred to the same parts among this second embodiment during the employing and first enforcement were complete, and omission is then given in the detailed description of relevant these parts.
Shown in Fig. 4 and 5, on arrow shaft wheel 3, be formed with a guide groove 38 as guide part, guide groove 38 is positioned on such position, and the phase place of this position upwards misplaces with 4 positions that centered on (rear side among second embodiment) for arrow shaft with respect to rapier wheel 3 wide.Guide groove forms one only to hold the width of belt 37 down.
As shown in Figure 3, rotatably to be located at arrow shaft that centered on and leave on the rear surface side of the corresponding part in position at rapier wheel 3 places with 4 with arrow shaft with 4 for roller 35,36.Axle 35a, the 36a of roller 35,36 does rotatable supporting by the supporting structure identical with the axle 31a of first embodiment, and roller 35,36 is arranged on them and can not be with 4 contacted positions with arrow shaft simultaneously.
Shown in Fig. 4 and 5, be formed with a coiling portion 39 on each roller 35,36, can make belt 37 be positioned at guide groove 38 with respect to the arrow shaft that is wound up into rapier wheel on 3, and move between the position corresponding to guide groove 28 with the coiling portion on this side of connecting hole 4a of 4.This coiling portion 39 has one is enough to hold the width that two belts 37 are arranged side by side.Belt 37 is to be made of the round and elastic belt.Belt 37 around on rapier wheel 3 and two rollers 35,36, makes that going up this belt 37 can touch mutually with the rear side surface of 4 upper edge circumference rotating parts with arrow shaft and close with the figure of eight, and the while engages with guide groove 38 on its opposite side.In other words, belt 37 respectively with 360 ° winding angle around to roller 35,36.
When the radius of roller 35,36 is represented by r, the thickness of belt 37 represented by t, rapier wheel 3 for arrow shaft with 4 center on part radius be R
1Expression, and rapier wheel 3 is R for the radius of 37 circle segments of belt
2When represented, they satisfy following relation through setting for:
(R
1+ t): r=R
2: r that is to say, the radius of the rapier wheel 3 that belt 37 is centered on, i.e. the radius of guide groove 38, greater than arrow shaft with 4 center on it this part radius be equivalent to arrow shaft with 4 thickness.
(R
1+ t): r=R
2: the peripheral speed of r roller 35,36, arrow shaft be with 4 movement velocity, rapier wheel 3 be belt 37 around the peripheral speed of part, and arrow shaft with 4 be by belt 37 to equate mutually around the peripheral speed of trailing flank.So belt 37 just moves back and forth, and not can owing to be directed to for guide groove 38 and coiling portion 39 made it to press to each roller 35,36 and arrow shaft with 4 and the circular motion portion of guide groove 38 cause slip.Since avoided arrow shaft with 4 and belt 37 between sliding friction, arrow shaft is with 4 just can not wear and tear because of sliding friction.Can reduce power consumption in addition and improve the durability that arrow shaft is with.
Because belt 37 is pressed onto arrow shaft on this side of whole circumference motion parts on the rapier wheel 3 with 4, this compares with first embodiment, just can further improve arrow shaft and be with 4 to drift about from rapier wheel 3 and to open.As a result, oppositely cause the just easier generation of collision phenomenon of the wall portion that connects projection collision connecting hole 22 with 4 the direction of motion because of arrow shaft.
Because belt 37 is made up of the round and elastic belt, even belt 47 is turned round volume ground around between rapier wheel 3 and two rollers 35,36 with the figure of eight, belt 37 just can not reduce with the contact area of 4 and two rollers 35,36 with rapier wheel 3, arrow shaft, and this is different with the situation of flat belt.So belt 37 just can balancedly move.In addition, even determine this part the comparing with 4 radiuses for arrow shaft of radius and rapier wheel 3 of guide groove 38 on rapier wheel 3 around this part, be not accurately to increase with 4 thickness by arrow shaft, but because the error of this thickness absorbed by the expansion of belt 37, belt 37 just can be with 4 these government officials to cause slip and be balancedly moved it and arrow shaft.
Should be noted that the present invention is not limited to above embodiment, but can be for example existing by following form body.
(1) in the structure that belt 32 is reeled between pressure roller 24,25 and straining pulley 31, jockey pulley 31 can be arranged on the weft yarn inserting side with respect on the opposite side of rapier wheel 3, arrow shaft is with 4 can be 32 pressings of belt simultaneously.Under above-mentioned combination, the end that connects projection 21 is identical with previous embodiment to be given prominence to from connecting hole 22, and the guide groove 24a, the 25c that are used for guiding belt 32 then are set on the pressure roller 24,25, as shown in Figure 6.
In these cases, belt 32 is to be wound in this wise between pressure roller 24,25 and the jockey pulley 31, promptly makes arrow shaft press on it makes the part of circular motion on the arrow shaft wheel 3 with 4.Because belt 32 is whole along being pressed onto on the rapier wheel 3 on the part of circular motion at it, between belt 32 and arrow shaft are with 4, does not cause so belt 32 back and forth is with 4 motions with arrow shaft and to skid.So owing to can avoid sliding friction between sword cash band 4 and belt 32, arrow shaft is with 4 also just can not wear and tear because of sliding friction, can reduces power consumption in addition and improve the durability that arrow shaft is with.
Because belt 32 partly is to be with arrow shaft 4 to press to rapier wheel 3 one sides at its whole circular motion of doing, this situation with first embodiment is compared, for preventing that arrow shaft is with 4 freely to open rapier wheel 3 and just have further improvement.Have for coiling arrow shaft gets final product with 4 required width owing to 3 need of rapier wheel again, thereby can reduce the weight of rapier wheel 3.Like this, the minimizing of inertia force just can further reduce power consumption.
Can also adopt such structure in addition, promptly use two belts 32, oppress arrow shaft with 4 both sides by connecting hole 22 by these belts 32.
(2) can make arrow shaft with 4 thickness greater than the height that connects projection.In this case, when as described in (1) money, arrow shaft being with 4 press on rapier wheel one side with belt 32, can make the width of belt 32 be increased to arrow shaft with 4 measure-alike, prevented arrow shaft with 4 free effects and improve with belt 32.In addition, in the situation of first embodiment, can not will groove 24b, 25b be set on the pressure roller 24,25.
(3) propping up bearing roller 24,25 and roller at 35,36 o'clock, they can be bearing on the precalculated position regularly, and not need to make elastic bearing by compression spring 30 and tension spring 23.
(4) in being similar to first embodiment by under belt 32 situations that just pressure roller 24,25 and rapier wheel 3 rotates synchronously, jockey pulley can be located at the weft yarn inserting side with respect to rapier wheel 3 with a side.
(5) rapier wheel 3 can be assemblied in the top of the weft yarn insertion passage of gripper head 23.In this situation, different among the mechanism that is used for rotatory force is passed to rocker 7 and described each embodiment in the past.
(6) replace guide groove 38, the adjusting projection of a collection of chain type can along the circumferential direction be set according to predetermined space.
(7) belt 32 is not limited to flat belt but the angle that can use tiger band or round belt.In addition, belt 37 is not limited to round belt but can be with flat belt or belt-like.
(8) can be the mechanism that is different from three-dimensional crank mechanism 18 as making rapier wheel 3 make the driving mechanism that back and forth rotates.For example can adopt a kind of so known device, promptly make a tooth bar reciprocating, and this reciprocating motion is passed to driven gear 20 by an idle pulley by a crank that is fixed on the axle that rotates synchronously with the crank axle of loom.
The following describes according to each claim achieved be different from above each relevant embodiment And summary of the invention and the advantage of modified example.
(1) in the present invention of foundation claim 1, be as described belt flat belt . In this case, the contact area of belt and rapier wheel and each respective rollers increases, namely Make the diameter of rapier wheel and each pressure roller littler, also can avoid belt creep.
(2) in foundation claim 1 and the present invention of 2, be the thickness that makes gripper band greater than The height that connects projection. In this case, even setting connecting hole catenulate On the part, also can press tactile gripper band by pressure roller, be realized preventing sword and improve by pressure roller The effect that the bar band is free. In addition, needn't fill at the periphery of each pressure roller and put to prevent each Pressure roller be connected the contacted groove of projection, thereby can letter through the manufacturing of pressure roller.
(3) in the present invention of foundation claim 3, be to make the thickness of gripper band greater than connecting Connect the height of projection. In this case, even connecting hole is being set catenulate part On, also can by pressure roller pressing gripper band, utilize belt to realize preventing arrow shaft thereby can improve The effect that band is free.
Described in detail as former, according to the described the present invention of claim 1 to 5, can Under the condition that does not strengthen the rapier wheel diameter, to adapt to the situation that fabric width increases, simultaneously Can prevent that bigger skidding arranged between gripper band and the pressure roller. So can prevent arrow shaft thus Band is free to reach the wearing and tearing that cause because of friction, thereby can improve the durability of gripper band.
According to claim 2, the present invention of 4 and 5, energy under the size that need not strengthen loom Enough obtain above-mentioned advantage.
According to the present invention of claim 3 to 5, because belt is the whole circle at its rear side On week gripper band is pressed to rapier wheel, thereby can prevent further that gripper band is free.
According to the present invention of claim 4 to 5, owing to do not need straining pulley, with claim 1 to 3 compares, and can make the relevant devices compactification.
According to the present invention of claim 5, be round belt because described belt adopts, namely Making is that this belt is turned round and is rolled into the figure of eight, and belt connects with rapier wheel, gripper band and relevant roller Tactile area can not reduce yet, and this is to be not identical with the situation of flat belt, thereby with belt also Can more equal 6 weighing apparatus ground motions.
Claims (10)
1. fine insertion equipment of the latitude that is used for Rapier looms, it comprises: a rapier wheel (3) is provided with a collection of connection projection (21) according to preset space length on its periphery; An and flexible gripper tapes (4), this band is adorned regularly with its first end and is enclosed a gripper head (23) and upwards be provided with row's connecting hole (22) in the length of this band, and this arrow shaft band (4) is around go up and make connection projection (21) to be coupled in the connecting hole (22) to described rapier wheel (3) with inverted status; Above-mentioned gripper head (23) then inserts in the warp thread aperture and from wherein withdrawing from by the reciprocal rotation of rapier wheel (3), thus weft yarn is inserted in this warp thread aperture, and above-mentioned insertion equipment is characterised in that,
Pressure roller (24,25) is arranged, rotatably be located at the inner surface and the contacted position of rapier wheel (3) of being with (4) on arrow shaft band (4) a part of outer surface side this arrow shaft of having reeled, the arrow shaft that rise corresponding to above-mentioned coiling this kind position (4) is left the position that rapier wheel (3) is located;
One endless belt (32) is arranged, be used for the rotation of rapier wheel (3) is passed to pressure roller (24,25), this belt centers on described rapier wheel (3), pressure roller (24,25) and a jockey pulley (31), and makes this belt (32) not disturb arrow shaft band (4), simultaneously
This belt (32) the rapier wheel of walking around (3) this part external diameter and the external diameter of pressure roller (24,25) then set for, make that the peripheral speed of the part that contacts with arrow shaft band (4) of the same pressure roller of reciprocating motion speed (24,25) of arrow shaft band (4) is consistent.
2. Weft-inserting apparatus as claimed in claim 1 is characterised in that: mentioned strain roller (31) is provided in a side of on a slay (1) side relative with rapier wheel (3).
3. Weft-inserting apparatus that is used for Rapier looms, it comprises: a rapier wheel (3) is provided with a collection of connection projection (21) according to preset space length on its periphery; An and flexible arrow shaft band (4), this band is adorned regularly with its first end and is enclosed a gripper head (23) and upwards be provided with row's connecting hole (22) in the length of this band, and this arrow shaft band (4) is around go up and make connection projection (21) to be coupled in the connecting hole (22) to described rapier wheel (3) with inverted status; Above-mentioned gripper head (23) then inserts in the warp thread aperture and from wherein withdrawing from by the reciprocal rotation of rapier wheel (3), thus weft yarn is inserted in this warp thread aperture, and above-mentioned insertion equipment is characterised in that,
Pressure roller (24 is arranged, 25), rotatably be located at the inner surface and the contacted position of rapier wheel (3) of being with (4) on arrow shaft band (4) a part of outer surface side this arrow shaft of having reeled, the position that rapier wheel (3) is located is left corresponding to the arrow shaft band (4) that above-mentioned coiling rises in this kind position;
One endless belt (32) is arranged, be used for the rotation of rapier wheel (3) is passed to pressure roller (24,25), this belt is around arriving described rapier wheel (3).On a roller (24,25) and a jockey pulley (31), and this jockey pulley (31) is arranged on the opposite side with respect to described rapier wheel (3) of a slay (1), makes the outer surface of above-mentioned part of belt (32) and arrow shaft band (4) contact; Simultaneously
The external diameter of the external diameter of this part of the rapier wheel (3) that this belt (32) is walked around and pressure roller (24,25) is then set for, makes that the peripheral speed with arrow shaft band (4) contacted part of the same pressure roller of reciprocating motion speed (24,25) of arrow shaft band (4) is consistent.
4. Weft-inserting apparatus that is used for Rapier looms, it comprises: a kind of rapier wheel (3) is provided with a collection of connection projection (21) according to preset space length on its periphery; An and flexible arrow shaft band (4), this band is adorned regularly with its first end and is enclosed a gripper head (23) and upwards be provided with row's connecting hole (22) in the length of this band, and this arrow shaft band (4) is around go up and make connection projection (21) to be coupled in the connecting hole (22) to described rapier wheel (3) with inverted status; Above-mentioned gripper head (23) then inserts in the warp thread aperture and from wherein withdrawing from by the reciprocal rotation of rapier wheel (3), thus weft yarn is inserted in this warp thread aperture, and above-mentioned insertion equipment is characterised in that,
Pressure roller (35,36) is arranged, and this rotatable mode is located on the inner surface and the contacted part of rapier wheel (3) of this arrow shaft band (4) on arrow shaft band (4) a part of outer surface side; Simultaneously
One belt (37) is arranged, and it is wound up on rapier wheel (3) and the roller (35,36), makes the part of this belt (37) engage with the outer surface of arrow shaft band (4) above-mentioned part, and some engages with rapier wheel (3).
5. Weft-inserting apparatus as claimed in claim 4 is characterised in that: belt (37) is that the elastic belt by circle constitutes; One on the described belt pulley (3) in described arrow shaft band (4) wide in depart from out on the position of arrow shaft band (4) above-mentioned part, be formed with a guide part (38) that is used for guiding this belt (37); Simultaneously above-mentioned each roller (35,36) is set with a coiling portion (39), allow belt (37) this guide part (38) with one herewith belt (37) be wound up on the arrow shaft band (4) between corresponding position in wide to middle motion.
6. as each described Weft-inserting apparatus in the claim 1 to 3, be characterised in that: described each pressure roller (24,25) had circumferentially in along the circumferential direction be formed with the guider (24c that is used for guiding belt (32), 25c), and aforesaid connection projection (21) is fit to by described connecting hole (22) outstanding.
7. as Weft-inserting apparatus as described in the claim 6, be characterised in that: described guider is that (24c 25c) constitutes by being formed at guide groove in aforementioned pressure roller (24, the 25) circumferencial direction.
8. as each described Weft-inserting apparatus in the claim 1 to 3 and 7, be characterised in that: described belt (32) is to be wound up into pressure roller (24 in this wise, 25) with jockey pulley (31) on, this part that makes that arrow shaft band (4) is wound up on the rapier wheel (3) presses on the rapier wheel (3).
9. as each described Weft-inserting apparatus in the claim 1 to 7, be characterised in that: the thickness of arrow shaft band (4) is greater than the height that connects projection (21).
10. as each described Weft-inserting apparatus in the claim 1 to 4 and 6 to 9, feature exists: described belt (32) is to be made of flat belt (32).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP020677/95 | 1995-02-08 | ||
| JP7020677A JPH08209494A (en) | 1995-02-08 | 1995-02-08 | Picking apparatus in rapier loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1135543A true CN1135543A (en) | 1996-11-13 |
| CN1045642C CN1045642C (en) | 1999-10-13 |
Family
ID=12033821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96101365A Expired - Fee Related CN1045642C (en) | 1995-02-08 | 1996-02-07 | Weft-inserting apparatus of rapier loom |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0726341A3 (en) |
| JP (1) | JPH08209494A (en) |
| KR (1) | KR100189464B1 (en) |
| CN (1) | CN1045642C (en) |
| TW (1) | TW339374B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821470B (en) * | 2004-12-10 | 2012-02-01 | Smit私人股份公司 | Driving device of clip holder bands or rods for clip weaving machines |
| CN103882611A (en) * | 2014-03-31 | 2014-06-25 | 山东日发纺织机械有限公司 | Gripper band guiding device of gripper loom |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH111845A (en) * | 1997-06-11 | 1999-01-06 | Toyota Autom Loom Works Ltd | Weft insertion device of rapier loom |
| CN103696107B (en) * | 2013-12-30 | 2015-02-25 | 苏州华策纺织科技有限公司 | Loom tension compensation device |
| CN103911749B (en) * | 2014-04-21 | 2015-04-29 | 江苏友诚数控科技有限公司 | Horizontal rotating weft-guiding transmission mechanism for weaving machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1443627A (en) * | 1965-07-30 | 1966-06-24 | Loom with continuous motion weft inserter | |
| JPS5311160A (en) * | 1976-07-17 | 1978-02-01 | Kobe Steel Ltd | Method of taking in and out matetral of ring rolling mill |
| IT1066839B (en) * | 1976-12-27 | 1985-03-12 | Somet Soc Mec Tessile | WEAVING FRAME WITH CONTINUOUS FEED OF THE WEFT |
| FR2427409A1 (en) * | 1978-05-31 | 1979-12-28 | Rueti Ag Maschf | RIBBON GUIDANCE FOR A CLAW Loom |
| CH630422A5 (en) * | 1978-05-31 | 1982-06-15 | Rueti Ag Maschf | Band guide on a band-type gripper weaving machine |
| CH652764A5 (en) * | 1981-10-14 | 1985-11-29 | Rueti Ag Maschf | DEVICE FOR THE SHOT ENTRY ON A TAPE GRIPPER WEAVING MACHINE. |
| IT1151228B (en) * | 1982-05-25 | 1986-12-17 | Vamatex Spa | MOTORCYCLE CONTROL ARRANGEMENT OF PLOT TRANSPORT CLAMPS IN WEAVING FRAMES WITHOUT SHUTTLES |
| JPS6328943A (en) * | 1986-07-15 | 1988-02-06 | ゲブリユ−ダ− ズルツア− アクチエンゲゼルシヤフト | Weft yarn charging apparatus of belt gripper type loom |
| WO1988007600A1 (en) * | 1987-04-03 | 1988-10-06 | Textilma Ag | Gripper weaving machine |
| IT1222684B (en) * | 1987-09-18 | 1990-09-12 | Nuovo Pignone Spa | IMPROVEMENTS IN THE PLIER TRANSPORT SYSTEM OF A TEXTILE FRAME WITHOUT SHUTTLE |
-
1995
- 1995-02-08 JP JP7020677A patent/JPH08209494A/en active Pending
- 1995-11-29 TW TW084112697A patent/TW339374B/en active
-
1996
- 1996-02-01 EP EP96101427A patent/EP0726341A3/en not_active Withdrawn
- 1996-02-05 KR KR1019960002676A patent/KR100189464B1/en not_active IP Right Cessation
- 1996-02-07 CN CN96101365A patent/CN1045642C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821470B (en) * | 2004-12-10 | 2012-02-01 | Smit私人股份公司 | Driving device of clip holder bands or rods for clip weaving machines |
| CN103882611A (en) * | 2014-03-31 | 2014-06-25 | 山东日发纺织机械有限公司 | Gripper band guiding device of gripper loom |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0726341A3 (en) | 1996-11-13 |
| JPH08209494A (en) | 1996-08-13 |
| EP0726341A2 (en) | 1996-08-14 |
| CN1045642C (en) | 1999-10-13 |
| TW339374B (en) | 1998-09-01 |
| KR960031672A (en) | 1996-09-17 |
| KR100189464B1 (en) | 1999-06-01 |
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