CN85106385B - Weft yarn suction device in a fluid jet loom - Google Patents
Weft yarn suction device in a fluid jet loom Download PDFInfo
- Publication number
- CN85106385B CN85106385B CN85106385A CN85106385A CN85106385B CN 85106385 B CN85106385 B CN 85106385B CN 85106385 A CN85106385 A CN 85106385A CN 85106385 A CN85106385 A CN 85106385A CN 85106385 B CN85106385 B CN 85106385B
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- weft yarn
- suction pipe
- loom
- suction
- main burner
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Abstract
A device which is arranged on a fluid jet loom absorbs weft yarn after generation of stopping signal of the loom to prevent the penetration of the weft yarn. The absorption device of the invention comprises an air blowing pipe which is arranged at the opposite side of an absorption tube and used to delivery the weft yarn to the absorption tube. The device also comprises a cutter which is arranged on a blocking component and independently cuts off the weft yarn from a main nozzle with the movement of the blocking component.
Description
What the present invention relates to is the Weft yarn suction device in air-jet loom or the water jet looms for example in a kind of fluid jet loom.
Along with the increase of weaving speed, fluid jet loom is widely used.In this class loom, weft yarn is threaded in the race of boundary between two groups of warp thread that replace.Because weft yarn is not to be brought into by shuttle but brought into by for example air or the such fluid of water, loom is compared with the shuttle type loom like this, penetrates easier breaking down in the process at weft yarn.Weft yarn promptly may occur and fail to be supplied with or fail to arrive the situation of the limit yarn of a relative side with nozzle by the weft yarn that nozzle provides from nozzle.
On the other hand, for the high-speed fluid ejection loom, its operating time is chosen such that promptly from detecting weft yarn and penetrates when mistake or fault take place that after the about coasting cycle, loom just shuts down.Shut down under the situation of finding fault because work as the driving mechanism of loom, its excessive deceleration may cause the damage of the various parts of loom.For this reason, penetrate error signal according to weft yarn and before really stopping at loom, next weft yarn penetrates the cycle and must be done.
Similar therewith, when warp thread comprised that limit yarn generation broken yarn phenomenon or loom main switch are shut artificially, after an about coasting cycle, loom just shut down.
The open № 197339/1983 of Japan Patent has disclosed a kind of method that is used for the processing weft yarn of jet loom.According to this method, to do not need operating personnel's special expertise because weft yarn fails to penetrate, the broken yarn phenomenon appears in warp thread or the fault that causes caused by loom stop etc. to cause owing to the artificial origin can be eliminated at an easy rate.Like this, by nozzle the weft yarn of fixed length is penetrated the fluid jet loom of the race of boundary between two groups of warp thread for this, sensing under the situation of loom parking signal, loom is promptly braked, meanwhile, weft yarn penetrates and is promptly bottled up till loom stops really.Loom antiport then, until loom be in can handle that root and hinder the duty that causes the weft yarn that sends stop sign for some reason till.In the meantime, the operating process of weft yarn being sent into race is promptly ended.
The open № 214556/1983 of Japan Patent has disclosed a kind of weft yarn that is used for fluid jet loom and has penetrated device, in this device, weft yarn relies on by the fluid of nozzle ejection and penetrates race, and this device is fully suitable for carrying out method recited above at first.This device is made up of a suction pipe, and its suction side is configured near the weft yarn passage between nozzle and the close limit yarn of nozzle one side.Above-mentioned publication has also disclosed a rotatable baffle component as weft yarn is guided to the instrument of suction pipe from the weft yarn passage, and a compressed-air atomizer that is arranged in a straight line with above-mentioned suction pipe is as another instrument that guides weft yarn in a similar fashion.
Among the open № 197339/1983 and 214556/1983 of the Japan Patent of mentioning in the above, suction pipe is movable with respect to the weft yarn passage, the suction pipe previous section is in from the enough near position of weft yarn passage, thereby weft yarn is produced effective suction effect.Yet whole device size will increase not as people's will ground when suction pipe is installed in the limited space in movable mode.
On the other hand, when suction pipe was installed in a fixed manner, the top part of suction pipe just can not be in the weft yarn suction process from the enough near position of weft yarn passage because of the restriction in space.
That all is to say, when main burner was installed on the slay, this main burner was along with slay sways.In the weft yarn suction process, main burner leaves the motion of suction pipe so that the distance increase between main burner and the weft yarn.And, be drawn to the corresponding crank shaft angle of suction pipe with weft yarn and approximately be 180 ° and be in main burner and exit within about 90 °～230 ° scope of corresponding crank shaft angle.Thereby the strength of main burner overcome the suction of suction pipe, and the suction of weft yarn just can not be carried out effectively like this.
In addition, when main burner was fixedly installed on the loom, suction pipe just can not be placed to from the enough near place of main burner outlet, because it may disturb weft yarn to penetrate the carrying out of operation.Consequently, in the weft yarn suction process, the suction pipe outlet can not be placed to from the enough near place of weft yarn, so because the restriction of suction pipe place suction, in fact the suction of weft yarn can not be done.
Therefore purpose of the present invention is exactly to overcome the shortcoming of said apparatus and a kind of Weft yarn suction device that is used for fluid jet loom is provided, rely on this device, can finish the suction of the weft yarn that comes out from the weft yarn passage, and the outlet of suction pipe can with main burner from a distance and can be this suction apparatus enough leeway, space is provided.
In view of above-mentioned purpose, the invention provides a kind of Weft yarn suction device that is used for fluid jet loom, this device has a main burner to be used to make weft yarn to penetrate along the weft yarn passage that is positioned at before this main burner; This device also comprises a weft yarn barrier structure and is used at the weft yarn blocking position and withdraws between the position and move, and at blocking position, this weft yarn barrier structure is positioned on the weft yarn passage, is withdrawing from the position, and this weft yarn barrier structure separates with the weft yarn passage; And suction pipe be installed in the above-mentioned blocking mechanism that is positioned at the main burner next door nearby to suck the weft yarn that is blocked by the weft yarn barrier structure; The characteristics of above-mentioned Weft yarn suction device are, near near above-mentioned barrier structure, an air blowpipe is placed on the opposite of above-mentioned weft yarn suction pipe, and the weft yarn passage is horizontal between the two, emits compressed air from the air blowpipe weft yarn is brought to suction pipe.
The present invention also provides a kind of system of having simplified to be used to cut off weft yarn.According to the present invention, a cutter is installed to above-mentioned barrier structure, because barrier structure cuts off weft yarn to withdrawing from the position motion.
In when operation, weft yarn baffle plate or barrier structure are in the weft yarn suction process and stop or block on the position of weft yarn, and when this position, it is horizontal on the weft yarn passage.Compressed air is sprayed onto on the weft yarn from the air blowpipe, so that weft yarn is sucked it effectively by suction pipe under the acting in conjunction of baffle component, air-flow and suction pipe.
According to the present invention, baffle component has a permeable part of fluid, sees through thus so that penetrate direction from the injection fluid of main injection along weft yarn.This helps making the weft yarn that is on the baffle component not to be subjected to interference from the injection fluid of main burner.The part that above-mentioned permission fluid sees through preferably by silk, metal or the fibrage of metal with appropriate size mesh or fiber or non-woven cloth or perforated metal thin plate make, perhaps make so that the fluid of the drive weft yarn of being supplied with by main burner sees through by the net that coincides, cloth or perforation thin plate.
In addition, when the weft yarn that is penetrated by main burner is blocked by baffle component and can not penetrate race, and baffle component is returned to when withdrawing from the position, and weft yarn is with regard to owing to the effect that is installed in the cutter on the baffle component is cut off, and weft yarn is cut off like this and separates so that siphoned away by suction pipe with main burner.
The embodiment that the present invention recommends will be illustrated with reference to the accompanying drawings below by example, and these accompanying drawings are:
Fig. 1 is the simple plane of expression by the transmission system of air-jet loom of the present invention;
Fig. 2 is the plane of the Weft yarn suction device in the expression system shown in Figure 1;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is a side view of explaining the operational transformation of Weft yarn suction device of the present invention;
Fig. 5 is the operating time chart of expression Weft yarn suction device shown in Figure 4.
With reference to the accompanying drawings, obtain explanation according to a kind of air-jet loom of the present invention, Fig. 1 is the simple plane of expression by the transmission system of air-jet loom of the present invention, among the figure, weft yarn Y is provided by yarn Fig. 1, through the stretcher of not representing among the figure,, rely on air nozzle 4 to be gone into storage tube 6 then by storage to a pair of conveying roller 2,3.
Conveying roller 2,3, shown in the open № 197339/1983 of Japan Patent, design like that and make, and in operation with a figure in not the bent axle of loom of expression link to each other, deliver to air nozzle 4 with rotation by the length of predetermined dimensional measurement weft yarn Y and with the weft yarn of fixed length according to bent axle.Should be noted that and can use various measurement weft length and storage facility, a kind of mechanism shown in the open № 125943/1984 of Japan Patent for example, wherein weft yarn is by on the circumferential surface of linear measure longimetry drum, and emits in a controlled manner.Storage tube 6 has vertically an elongated cuts 6a in a side, from this otch 6a, the weft yarn Y that stores can be taken out.
A clamper 5 is positioned between storage tube 6 and the main burner 9, in order to weft yarn Y from storage tube 6 to main burner the transmission 9 control.
In the present embodiment, main burner 9 is installed on the slay 8, make its along with and 8 motions of the synchronous slay of crankshaft rotating with ejection compressed air weft yarn Y is penetrated the boundary in the race between two groups of warp W up and down.
The sensor of expression not on figure, for example photoelectric sensor, mechanical pick-up device or hydrostatic sensor can be installed near the limit yarn away from main burner 9 one sides, are used for surveying weft yarn Y and whether have penetrated race really.That is to say, check when weft yarn penetrates the mistake that may cause by nozzle 9.
The receptor of expression not on figure, for example photoelectricity receptor, mechanoceptor or hydraulic pressure receptor can be installed between main burner 9 and the clamper 5, are used for surveying the fault that may cause in the weft yarn transport process.
Weft yarn suction device 13 of the present invention is described now.
One is applicable to the injecting type suction pipe 17 that produces suction under the compressed air effect, is fixedly installed on the main burner 9 and the position between the yarn of limit of loom.Should be noted that except use to be suitable for the suction pipe that produces suction under the compressed air effect, also can use directly to link to each other with a negative pressure, and can not depart from the scope of the present invention with the suction pipe of generation suction.
Shown in Fig. 2 and 3, a Support bracket 19 is fixedly installed to the upper limb of suction pipe 17 front portions, and usefulness has sole piece 20 that suitable resiliency and wear-resistant synthetic material make is releasably attached to Support bracket 19 with bolt bottom surface.Should be noted that Support bracket 19 also can directly be installed on the loom rather than is installed on the suction pipe 17.
An air blowpipe 16 is fixedly installed on the loom, it with the axis of suction pipe 17 in line and be in weft yarn passage one side relative with suction pipe 17.When compressed air by operation conversion valve (not shown) during by 16 ejections of air blowpipe, be in that weft yarn between suction pipe 17 and the air blowpipe 16 is promoted and the suction pipe 17 that is in air blowpipe 16 opposites sucks forward.
A back shaft 14 rotatably is supported on the loom, some rotatable parts, and for example magnetic coil or cylinder (not shown) are connected with the rear end of back shaft 14.Barrier structure or baffle component 15 are fixed near the front portion of the back shaft 14 the suction pipe 17.And in the side of suction pipe facing to main burner 9.Baffle component 15 is done the as a whole rotation that can make subrange in vertical direction with back shaft 14.When baffle component 15 when vertical direction is rotated, it can be in withdraws from position or weft yarn blocking position.When withdrawing from the position, baffle component 15 is in outside the weft yarn run track; When blocking position, baffle component 15 is on the weft yarn run passage.Should be noted that baffle component 15 also can not do the rotation of vertical direction, and can, for example the direction before and after the loom is moved.
As shown in Figure 3, member 15 is made into fan-shaped, and a some face that forms gauze is arranged to constitute the permeable part 15c of fluid, by this part, can see through along the direction that weft yarn penetrates from the air-flow of main burner 9 ejections, and can not cause turbulent flow or make weft yarn at random owing to colliding with baffle component 15.
Shown in Fig. 2 and 3, a jib 15a bends vertically downward from baffle component 15, and a cutter 18 of being made by foil is releasably attached on this jib 15a by bolt or similar securing member.When this cutter 18 rotated along with baffle component 15, its upper limb can be pressed onto on the sole piece of being made by elastomeric material 20 weft yarn that connects together to cut off from main burner 9 to suction pipe 17.
By this way, cutter forms one with baffle component 15, and along with this baffle component in subrange rotation and weft yarn is cut off.Consequently, the transmission mechanism of cutter can save, and weft yarn cut-out system has been simplified.
The top of member 15 also is formed the scene-affinity 15b of a bending, is used for guiding the suction yarn air-flow that is caused by suction pipe 17, and when bottling up at weft yarn in case by the permeable part 15c of fluid, prevents its deflection that makes progress.
With reference to Figure 4 and 5, air-jet loom can obtain explanation in the operation that weft yarn penetrates when breaking down.
Weft yarn Y is at the shed open of two groups of heddle (heald)s between moving period, penetrates the boundary in the race between two groups of warp thread W up and down.With reference to figure 1, weft yarn Y emits from a ball of string 1, and through a stretcher, its length is measured by the conveying roller 2,3 along with crankshaft rotating.The weft yarn Y of this fixed length imports storage tube 6 to be stored in this pipe by air nozzle 4.Clamper 5 is horizontal between storage tube 6 and main burner 9, and nozzle 9 then is driven to be done and the synchronous motion of crankshaft rotating.By this way, be stored in weft yarn Y in the storage tube 6 and be threaded into the boundary in the race between two groups of warp thread W up and down.
The situation that weft yarn penetrates is by the limit yarn sensor nearby that is installed in away from main burner 9 one sides, and between 250 ° to 300 ° of corresponding crank shaft angle, warp thread W roughly finishes the moment of race opening and detects.
If mistake takes place when weft yarn penetrates, that is to say, when the weft yarn that is introduced into race failed to arrive limit yarn away from main burner 9 one sides for a certain reason, sensor sent weft yarn and penetrates fault-signal (at time A).Sending under the situation that weft yarn penetrates fault-signal, the running that drives the motor of loom will be ended, and loom just enters the coasting state like this.Similar therewith, sending under the situation that weft yarn penetrates fault-signal, back shaft 14 is done the rotation of subrange under the drive of this rotary gadget, and by this way, the baffle component 15 that is secured on the back shaft 14 just gets lodged on the weft yarn run passage.Meanwhile, from the moment that air blowpipe 16 sprays, in suction pipe 17, just produce suction at compressed air.
By this way, in weft yarn penetrates the next time cycle B-C that breaks down, blocked, otherwise the air-flow that blows the band weft yarn is at one time in the cycle B-C by baffle component 15 by the weft yarn of main burner 9 ejection.Then pass the part 15c that allows fluid to see through, move on the direction that penetrates along weft yarn.So air-flow can be owing to not taking place to collide and multilated with baffle component 15, thereby avoided the at random of weft yarn.Thereby being pushed to suction pipe 17 by the weft yarn that baffle component 15 blocks under the effect of the compressed air strength that is sprayed by air blowpipe 16 is inhaled in the suction pipe 17.By this way, weft yarn penetrates race and is just prevented effectively.
After a coasting cycle, loom just stops in time C fully greatly, and this moment, warp thread W was in the position of race opening approximately, and crank shaft angle correspondingly approximately is 300 °.
Then, according to the program shown in the open № 197339/1983 of Japan Patent, the loom antiport is until two groups of warps that replace transposition up and down, and at this state, the weft yarn of failing to penetrate race is removed.
At this state, the loom antiport is until the original position of getting back to it, and loom begins to run well again.
The front has been described and has been handled weft yarn and fail correctly to penetrate the situation of the race that is formed by the shed open motion.Yet the present invention also can be used for warp thread or broken yarn appears in the limit yarn or fluid jet loom causes situations such as parking owing to the artificial origin.
What the front had described also that weft yarn and then penetrates next root weft yarn after the fault penetrates or transmits the situation that device bottles up and sucks that is inhaled into, yet, can suck and be handled between off-cycle at loom at the weft yarn that the upstream is clamped and this velamen is clamped of main burner by this suction apparatus along with detecting that root weft yarn that weft yarn will be threaded into after breaking down.
In the above-described embodiments, main burner be installed to the synchronous reciprocating slay of crankshaft rotating on, baffle component and suction pipe and air blowpipe then are installed on the loom.Yet, can do various changes within the scope of the invention.For example, main burner can be fixed on the loom.The air blowpipe can selectively be fixedly installed on the loom and baffle component and suction pipe can be installed on the slay, and also selectable scheme is that baffle component and suction pipe and air blowpipe can all be installed on the slay.
The invention provides a kind of arrangement, according to this arrangement, baffle component is transformed the blocking position on the weft yarn passage in the weft yarn suction process, to block the weft yarn that main burner provides; Simultaneously, according to this arrangement, compressed air is sprayed onto on the weft yarn from the air blowpipe.So that weft yarn under the acting in conjunction of baffle component, air blowpipe and suction pipe, sucks suction pipe by suction.
By this way, the present invention can make the size of Weft yarn suction device reduce, and makes the suction pipe front portion leave the general distance of main burner, thereby is guaranteeing under the situation that weft yarn is effectively sucked, for Weft yarn suction device provides enough leeway, space.
The present invention also provides a kind of arrangement, wherein cutter and baffle component form an integral body, cut off weft yarn simultaneously along with the rotation of baffle component, thereby the special transmission mechanism of cutter can be saved, thereby provide a cut-out system of having simplified to make the weft yarn be cut off effectively and to suck.
Claims (2)
1, Weft yarn suction device in a kind of fluid jet loom, this device has a main fluid nozzle to be used to make weft yarn to penetrate along the weft yarn passage that is positioned at before this main burner, this device also comprises a weft yarn barrier structure, be used at the weft yarn blocking position and withdraw between the position and move, at blocking position, this weft yarn blocking mechanism is positioned on the weft yarn passage, withdrawing from the position, this weft yarn barrier structure separates with the weft yarn passage, in addition, a suction pipe is installed in the weft yarn that has been blocked by above-mentioned barrier structure with suction of the above-mentioned barrier structure that is positioned at the main burner next door nearby, it is characterized in that: in place near above-mentioned barrier structure, the opposite that air blowpipe is positioned in above-mentioned weft yarn suction pipe brings to this suction pipe to emit compressed air with weft yarn, and the weft yarn passage is then horizontal between air blowpipe and suction pipe.
2, according to the described device of claim 1, it is characterized in that: above-mentioned barrier structure has a permeable part of fluid, with so that from the fluid of above-mentioned main burner ejection, be on the blocking position at this barrier structure, the direction that can penetrate along weft yarn is by this part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6579/1985 | 1985-01-17 | ||
| JP657985A JPS61167048A (en) | 1985-01-17 | 1985-01-17 | Weft yarn sucking apparatus in fluid jet type loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85106385A CN85106385A (en) | 1986-07-16 |
| CN85106385B true CN85106385B (en) | 1988-12-21 |
Family
ID=11642234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85106385A Expired CN85106385B (en) | 1985-01-17 | 1985-08-24 | Weft yarn suction device in a fluid jet loom |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS61167048A (en) |
| CN (1) | CN85106385B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19521100C1 (en) * | 1995-06-09 | 1996-07-11 | Dornier Gmbh Lindauer | Damaged weft thread removal from loom shed |
| CN103757804B (en) * | 2014-01-28 | 2015-03-25 | 无锡精业丝普兰科技股份有限公司 | Two-way weft insertion mechanism and method of two-way weft insertion air jet loom |
| CN103757806B (en) * | 2014-01-28 | 2015-02-11 | 无锡精业丝普兰科技股份有限公司 | Main jet used for two-way weft insertion air jet loom |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5164064A (en) * | 1974-11-29 | 1976-06-03 | Enshu Seisaku Kk | Jetsutoruumuno yokoirekyushisochi |
| NL8202215A (en) * | 1982-06-01 | 1984-01-02 | Rueti Te Strake Bv | Rinse-free weaving machine, provided with means for removing faulty weft threads from the weaving box. |
| JPS5949341A (en) * | 1982-09-15 | 1984-03-21 | Nippon Denso Co Ltd | Electric control device for diesel engine |
-
1985
- 1985-01-17 JP JP657985A patent/JPS61167048A/en active Granted
- 1985-08-24 CN CN85106385A patent/CN85106385B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0323660B2 (en) | 1991-03-29 |
| JPS61167048A (en) | 1986-07-28 |
| CN85106385A (en) | 1986-07-16 |
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