CN109930289A

CN109930289A - The setting method of the weft yarn flight information of air injection loom

Info

Publication number: CN109930289A
Application number: CN201811424599.6A
Authority: CN
Inventors: 林健太郎
Original assignee: Tsudakoma Industrial Co Ltd
Current assignee: Tsudakoma Corp
Priority date: 2017-12-15
Filing date: 2018-11-27
Publication date: 2019-06-25
Anticipated expiration: 2038-11-27
Also published as: JP2019105017A; CN109930289B; EP3498900A1; JP7057117B2

Abstract

The present invention provides a kind of setting method of the weft yarn flight information of air injection loom, the loom determines the spray regime of each auxiliary jet based on weft yarn flight information, wefting insertion is executed according to the wefting insertion condition that the spray regime comprising each auxiliary jet and target weft yarn reach timing, the information is the information for the weft yarn state of flight imagined, can a side on using the rotation angle of loom main shaft and woven pieces direction in the distance away from wefting insertion starting position as horizontal axis, using another party as in the chart area of the longitudinal axis, describe state of flight in the form of flight line, in the weft yarn flight path of the in-position of the weft yarn on from wefting insertion starting position to woven pieces direction, it is being set in for the determining first position in yarn side and after the second position instead determined for yarn side, in the first bending point set on first position and set on the curved shape of the second bending point of the second position Flight line is drawn and determined to shape, and the second bending point is set by being reached rotation angle and the second position of the loom main shaft that timing is found out based on target weft yarn.

Description

The setting method of the weft yarn flight information of air injection loom

Technical field

The present invention relates to a kind of setting methods of the weft yarn flight information of air injection loom, are based on weft yarn flight information Determine the spray regime of each auxiliary jet, which is the information of the state of flight in relation to weft yarn, is set as follows Chart area in can describe above-mentioned state of flight in the form of flight line, in the chart area, with loom main shaft The side rotated in the distance away from wefting insertion starting position on angle and woven pieces direction is horizontal axis, using another party as the longitudinal axis.

Background technique

In air injection loom, it is generally desirable to, for assisting the flight of the weft yarn projected from main burner in wefting insertion The injection of compressed air that carries out of each auxiliary jet it is (hereinafter referred to as " real with the state of the flight of the weft yarn corresponded in the wefting insertion The weft yarn state of flight on border ") spray regime (injection start, stop timing) carry out.Because working as the spray regime of each auxiliary jet When (hereinafter also referred to as " spray regime ") is not suitably determined relative to actual weft yarn state of flight at this time, spray can be generated Penetrate extra air and cause specific air consumption increase or to wefting insertion (weft yarn flight itself, flight weft yarn state Deng) bring adverse effect etc the problem of.In other words, as long as the spray regime is appropriate relative to actual weft yarn state of flight Ground determines, it will be able to prevent the generation of this problem.

Therefore, when setting the spray regime of each auxiliary jet, in the past using following method: finding out related imagination The state of flight of weft yarn (is known as " the weft yarn state of flight of imagination " relative to above-mentioned " actual weft yarn state of flight ".Below It is identical) information (weft yarn flight information), based on the weft yarn flight information found out set spray regime.In addition, the weft yarn flies Row information be for example using horizontal axis as the rotation angle (hereinafter also referred to " degree in crank angle ") of loom main shaft, with the longitudinal axis be away from wefting insertion In the form of line chart (flight line) in the chart area of the distance of starting position (front position of the main burner on woven pieces direction) Describe the information of the weft yarn state of flight of above-mentioned imagination.By the way, the flight line described in the chart area is to imagine For weft yarn with imagine weft yarn state of flight flight when each degree in crank angle under connection weft yarn front position line chart, quite Flight path in the front end of weft yarn at this time.Determine the technology of the spray regime of this each auxiliary jet e.g., as disclosed in patent text It offers in 1.

However, in patent document 1, (setting) weft yarn found out when determining the spray regime of each auxiliary jet as described above Flight information is not according to the information of actual weft yarn state of flight.Therefore, in patent document 1, based on weft yarn flight letter The spray regime for ceasing determining each auxiliary jet is not suitable for actual weft yarn state of flight.Specifically, in patent document 1, it should Weft yarn flight information is set to so that set wefting insertion is started the flight line drawing that timing and target arrival timing directly link Draw the information of the weft yarn state of flight of imagination.That is, the spray regime for determining each auxiliary jet in the prior art, weft yarn fly Row information is the information set in such a way that the flying speed of weft yarn is unconverted during entire wefting insertion.

But in actual wefting insertion, if will be divided into, close to wefting insertion the wefting insertion initial stage for just starting wefting insertion during wefting insertion The wefting insertion latter stage of end and wefting insertion mid-term therebetween consider that then (initial stage flies in the flying speed of the weft yarn to the wefting insertion initial stage Scanning frequency degree) and the flying speed (mid-term flying speed) of wefting insertion mid-term when being compared, the rwo differs widely.In addition, should Mid-term flying speed and the flying speed in wefting insertion latter stage (latter stage flying speed) are compared, the rwo also differs widely.More in detail It is as follows for thin.

At wefting insertion initial stage, the transition period that rises by the pressure of the compressed air comprising being sprayed by main burner, just Only by main burner progress wefting insertion or with the inertia of the weft yarn from halted state setting in motion or to confess yarn body after wefting insertion The larger influence waited of resistance is unwound, the flying speed of the weft yarn is slower than the flying speed of wefting insertion mid-term.

On the other hand, the flying speed about the weft yarn in wefting insertion latter stage is many relative to loom setting weft brake Well known, in being provided with weft brake air injection loom, because of the effect of the weft brake, make weft yarn Flying speed is slack-off compared with the flying speed of the wefting insertion mid-term before weft brake movement.In addition, even if not having In the case where weft brake, in general air injection loom, due to the injection for the compressed air that main burner carries out Stop before wefting insertion latter stage rather than carried out during through entire wefting insertion, therefore, is affected by it, sometimes at wefting insertion end Phase, the flying speed stall of weft yarn.

In this way, as above changing in actual wefting insertion in wefting insertion initial stage, wefting insertion mid-term and wefting insertion latter stage, flying speed.With On the contrary, in patent document 1, as described above, weft yarn flight information is set to flying speed constant, weft yarn flight information It is and the obvious not corresponding information of actual weft yarn state of flight.Therefore, according to based on the considerations of this 1 method of patent document The spray regime for each auxiliary jet that weft yarn flight information determines does not meet the flight of the weft yarn in actual wefting insertion, as its result Sometimes it leads to the problem of as described above.

Accordingly, with respect to the weft yarn flight information for finding out (setting) when setting the spray regime of each auxiliary jet, in this patent It is proposed in the applicant of the application previously patent application (hereinafter referred to as " earlier application ") of applied Patent 2017-197497, Above-mentioned flight line is divided into and wefting insertion initial stage corresponding first part's flight line, second part corresponding with wefting insertion mid-term fly Line is handled with final corresponding these three the continuous part flight lines of Part III flight line of wefting insertion, which is flown Information is set as the information comprising the information in relation to three part flight lines.In addition, being proposed in earlier application, latitude As long as the setting of yarn flight information is at least any in the initial setting stage prior to starting weaving operating progress and weaving Stage implements.

Moreover, by setting weft yarn flight information, weft yarn flight letter the invention (formerly invention) as the earlier application Breath becomes the information more suitable for actual weft yarn state of flight, can get and is also configured as being suitble to by the spray regime of each auxiliary jet The effect of actual weft yarn state of flight.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Application 63-92754 bulletin

Summary of the invention

Problems to be solved by the invention

However, based on formerly hair after the spray regime of auxiliary jet of the phase sets initially set before starting weaving When bright setting weft yarn flight information, in earlier application, based on the structure according to data or Weft inserting device in past weaving To seek the starting point of second part flight line, (first is bent the predicted value for the unwinding timing that (state) and wefting insertion condition etc. are found out Point) and terminal (the second bending point).

But by the investigations such as inventor herein the result shows that, according to weaving conditions such as woven pieces, as initially setting Determine the stage find out as described above the starting point and the terminal as a result, sometimes to link the terminal and reach timing with target The Part III flight line that the form of the corresponding point of arrival obtains can be drawn into substantially parallel with second part flight line.

Specifically, when seeking the predicted value of unwinding timing, if there is in the same terms (identical loom (or identical rule The loom of lattice) and in identical weaving condition (woven pieces, wefting insertion condition etc.)) under data when being weaved (or test weaving), then can Weft yarn flight information is found out in the form of based on actual weft yarn state of flight.But exist not always necessarily this identical Under the conditions of the data (with the data of condition) that obtain, the data of sometimes this same condition can not obtain because of all situations.Especially, In loom (such as woven pieces be more than 250cm loom) of wide cut etc., also the number of units of sometimes manufactured loom is few, most cases The data as described above with condition can not be obtained.

In the case where the data of same condition cannot be obtained in this way, based on being found out in the weaving of different condition progress Data, using calculate etc. find out the predicted value.Moreover, find out in this way the predicted value as a result, according to weaving condition etc., Part III flight line as described above is generated sometimes is drawn into the feelings drawn substantially in parallel with second part flight line Condition.Moreover, in this case, which is not drawn into instead of in the curved form of the second bending point, drawn The form of the line from the first bending point linear extension to the point of arrival is made.

In addition, the also flight as drawn in the form of corresponding with actual weft yarn state of flight described in earlier application Line should be in the curved form of the second bending point.But in the above case said, due to curved not in second bending point The form of bent flight line sets weft yarn flight information, so the weft yarn flight information is not suitable as flying with actual weft yarn The corresponding information of state.Therefore, in this case, the spray regime of the auxiliary jet determined based on this weft yarn flight information is not yet Meet actual weft yarn state of flight, generates the problems such as cannot suitably carrying out wefting insertion sometimes.

The setting method of weft yarn flight information of the invention considers above-mentioned actual conditions and creates, it is intended that In air injection loom as described above, about in order to initially setting phase sets auxiliary jet spray regime and find out Weft yarn flight information, if based on the predicted value come when finding out, which does not meet actual weft yarn flight shape In the case where state, the weft yarn flight information is set as information corresponding with actual weft yarn state of flight as much as possible.

A technical solution to solve project

The present invention determines the spray regime of each auxiliary jet based on weft yarn flight information premised on air injection loom, The weft yarn flight information be in relation to imagine weft yarn state of flight information, be set as can in following chart area with The form of flight line describes the state of flight, in the chart area, with the rotation angle of loom main shaft and woven pieces direction On a side in the distance away from wefting insertion starting position be horizontal axis and using another party as the longitudinal axis.In addition, the sky as the premise Gas jet formula loom draws according to the wefting insertion condition execution that the spray regime comprising each auxiliary jet and target weft yarn reach timing Latitude.

In addition, " state of flight of weft yarn " mentioned here is not complete with the state of flight of the weft yarn in actual wefting insertion Consistent state, but according to the preset setting value such as weaving condition for including wefting insertion condition or in actual wefting insertion with The weft yarn of flight is (imagination) state of flight for the hypothesis that object is found out by the detected value that sensor etc. detects.

In addition, the injection that above-mentioned described (auxiliary jet) " spray regime " includes each auxiliary jet starts timing, injection knot Beam timing (or injection period).In fact, the spray regime is to control the multiple electromagnetism opening and closing for being assigned multiple auxiliary jets Valve is to connect the respective driving of electromagnetic opening and closing valve of corresponding auxiliary jet and set.

Moreover, the present invention provides a kind of setting method of the weft yarn flight information of air injection loom, It is characterized in that, in the weft yarn flight path from the weft yarn in-position on the wefting insertion starting position to woven pieces direction, is setting It is scheduled on for the determining first position in yarn side and after the second position instead determined for yarn side, to be set in the first position The first bending point and be set in the curved shape of the second bending point of the second position and drawn and determined by the latitude The flight line that yarn flight information indicates, and second bending point is by reaching what timing was found out based on the target weft yarn The rotation angle of loom main shaft and the second position are set.

Invention effect

According to the present invention, about the weft yarn flight information of the state of flight of the weft yarn in relation to imagining and as each for setting The weft yarn flight information on the basis of the spray regime of auxiliary jet, the weft yarn flight information are set to be more in line with actual weft yarn The information of state of flight.Especially, according to weaving condition of loom etc., when asking weft yarn to fly based on the data etc. that can be obtained in advance When information, the weft yarn flight information does not meet actual weft yarn state of flight sometimes, even in this case, according to this hair It is bright, as reaching the second bending point described in timing setting, institute based on target weft yarn used in the weaving (wefting insertion) in the loom Also the weft yarn flight information that this finds out can be set as to meet the information of actual weft yarn state of flight as far as possible.As a result, can The generation for the problems such as enough preventing the increase of specific air consumption as described above as much as possible or adverse effect is brought to wefting insertion.

Detailed description of the invention

Fig. 1 is the explanatory diagram for indicating an example of Weft inserting device used in the present invention；

Fig. 2 is the wefting insertion controller for indicating Weft inserting device and the frame with the relationship of the related device of the wefting insertion controller etc. Figure；

Fig. 3 is the explanatory diagram for indicating an example of the display picture of input setting apparatus of Weft inserting device；And

Fig. 4 be indicate to respectively according to the present invention and according to existing method acquire flight line based on weft yarn flight information and The explanatory diagram for showing picture that the case where spray regime of each auxiliary jet compares and shows.

Symbol description

1-Weft inserting device, 2-weft yarns supply series, 3-for yarn body, 4-weft yarn length measuring weft storing devices, 4a-reel for yarn Around arm, 4b-storage latitude drum barrel, 4c-locking pin, 5-weft brakes, 5a-fixed thread guide, 5b-movable yarn guide, 6-auxiliary main burners, 7-main burners, 8-wefting insertion controllers, 8a-control unit, 8b-storage unit, 8c-timing test section, 8d-operational part, 9-weft yarns, 11-unwinding sensors, S-auxiliary jet, 12-Warp openings, 13-reeds, 14-bobbin feelers, 15-loom main shafts, 16-loom control devices, 21-compressed air supply sources, 22-assistant tanks (air tank), 23-supplies are logical Road, 23a-common supply passageway, the individual supply passageway of 23b-, 24-electromagnetic opening and closing valves, 31-supply passageways, 32-supply To access, 33-main tanks (air tank), 34-electromagnetic opening and closing valves, 35-electromagnetic opening and closing valves, 36-common supply passageways, 41- Setting apparatus is inputted, θ-angle signal, A θ-weft yarn reach periodically, R θ-unwinding timing, AS-arriving signal, EN-encoder, RS-unwinding signal, the difference of the injection beginning timing of C-command signal, θ d-auxiliary jet, θ p-setting advance angle setting value, θ m-thinks that weft end reaches the degree in crank angle at the time point of the position of auxiliary jet, and θ s-wefting insertion starts the setting value of timing, θ E-weft yarn reaches the setting value of timing, θ e0-benchmark timing, the degree in crank angle of the bending point of θ x-second, θ x0-benchmark crank Angle, a, the first bending point of b-correction factor, K1-, the second bending point of K2-, when the braking of Lr-weft brake starts Between point (setting value), distance (setting value) of the L1-from wefting insertion starting position to first position, L2-from wefting insertion starting position to The distance (setting value) of the second position, M-drive motor, f-are flown based on the weft yarn flight information found out by existing idea Line (straight line), flight line (curve) of the g-based on the weft yarn flight information found out according to the present invention, g1-first part's flight Line (the first flight line), g2-second part flight line (the second flight line), g3-Part III flight line (third flight line).

Specific embodiment

The present invention carries out the air injection type of wefting insertion into Warp opening with the compressed air sprayed by Weft insertion nozzle and knits Premised on the Weft inserting device of the above-mentioned wefting insertion of execution in machine.Fig. 1, be shown in 2 the Weft inserting device an example.

As shown in Figure 1, Weft inserting device 1 includes: weft yarn supply series 2 comprising as the structure for participating in above-mentioned wefting insertion For yarn body 3, weft yarn length measuring weft storing device 4 and as the main burner 7 of above-mentioned Weft insertion nozzle；Wefting insertion controller 8 controls the weft yarn The movement etc. for each device for including in supply series 2.In addition, in Fig. 1, the Weft inserting device 1 be described as having two it is above-mentioned The multicolor weft insertion device of weft yarn supply series 2.

In each weft yarn supply series 2, weft yarn 9 is from the yarn that weft yarn length measuring weft storing device 4 is spun and be imported into for yarn body 3 The inside of winding arm 4a, (outer peripheral surface) is locked pin 4c locking on the storage latitude drum barrel 4b of stationary state, meanwhile, pass through reel for yarn Rotary motion around arm 4a is wound on storage latitude drum barrel 4b.The weft yarn 9 of length needed for a wefting insertion is wound in storage latitude as a result, On drum barrel 4b, when the wefting insertion of Chu Weizhi weft yarn 9 until.

Each weft yarn supply series 2, is also equipped in addition to above-mentioned main burner 7 as Weft insertion nozzle and is configured at the main burner The auxiliary main burner 6 of 7 upstream side (specifically, from the upstream side of the weft path for yarn body 3 to main burner 7).Auxiliary master Nozzle 6 is well-known itself, is wefting insertion of the weft yarn 9 into Warp opening 12 in order to assist main burner 7 to carry out and is set The Weft insertion nozzle set.It is configured near the above-mentioned upstream side of auxiliary main burner 6 in addition, each weft yarn supply series 2 has State the weft brake 5 in weft path.

Start timing driving card shotpin 4c in wefting insertion, when locking pin 4c is retreated from the outer peripheral surface of storage latitude drum barrel 4b, winding Become the dissoluble state on storage latitude drum barrel 4b in the weft yarn 9 on storage latitude drum barrel 4b.Moreover, passing through auxiliary main burner 6 and master Nozzle 7 carry out injection action, Cong Chuwei drum barrel 4b longitude and latitude yarn brake 5 pass through auxiliary main burner 6, main burner 7 weft yarn 9 from Store up latitude drum barrel 4b unwinding and by wefting insertion.

Weft brake 5 has: guidance weft yarn 9 and a pair of of fixed thread guide along weft path separate configuration 5a,5a；It is rotatably arranged between two fixed thread guides 5a, 5a and is configured to block by its rotation with weft yarn 9 The movable yarn guide 5b of conjunction；The drive motor M of actuator as rotation driving movable yarn guide 5b.Moreover, in weft thread brake In device 5, in wefting insertion latter stage, drive motor M movement, movable yarn guide 5b is rotated between two fixed thread guide 5a, 5a, thus It is bent weft yarn 9, brake force is applied to weft yarn 9.Prevent weft yarn 9 from being filled in wefting insertion end time point by weft yarn length measuring weft storing as a result, Set the limitation broken yarn of weft yarn 9 caused by 4 (locking pin 4c) limitations.

In addition, being equipped with and moving back near the storage latitude drum barrel 4b of weft yarn length measuring weft storing device 4 in each weft yarn supply series 2 Around sensor 11.In addition, the unwinding sensor 11 is with opposed with the outer peripheral surface (drum barrel diametrical direction) of corresponding storage latitude drum barrel 4b Form setting.In addition, for convenience's sake, unwinding sensor 11 is expressed as being set to locking across storage latitude drum barrel 4b in Fig. 1 Sell the position of the opposite side of 4c.But in fact, unwinding sensor 11 is identical with the locking pin 4c around storage latitude drum barrel 4b Position, and storage latitude drum barrel 4b central axis direction on staggered positions and be arranged.Moreover, unwinding sensor 11 and wefting insertion control Device 8 processed is electrically connected.

With above-mentioned wefting insertion, the weft yarn 9 stored up on latitude drum barrel 4b is unwound from storage latitude drum barrel 4b.In this way, whenever storage latitude drum barrel As soon as the weft yarn 9 of the circle of 4b is unwound from storage latitude drum barrel 4b, weft yarn 9 passes through between storage latitude drum barrel 4b and unwinding sensor 11.It moves back This is detected around sensor 11 to pass through, and just generates detectable signal whenever carrying out the detection.Moreover, the detectable signal is as unwinding letter Number RS is output to wefting insertion controller 8 (referring to Fig. 2).By the way, according to Weft inserting device, unwinding signal RS is also used sometimes In the drive control of locking pin 4c.

In addition, Weft inserting device 1 has relative to two 2,2 settings jointly of weft yarn supply series, and assist each weft yarn supply The multiple auxiliary jet S for the wefting insertion that series 2 carries out.Multiple auxiliary jet S is arranged to the reed folder (illustration omitted) in support reed 13 On, adjacent auxiliary jet S, S are configured at predetermined intervals.In addition, main burner 7 is also set on reed folder in Weft inserting device 1, pass through The front surface (face of fell side) for the reed 13 that the weft yarn 9 of 7 wefting insertion of main burner is pressed from both sides along reed is flown.Therefore, multiple auxiliary jet S It is arranged along the flight path of weft yarn 9.

Each auxiliary jet S is connect via the supply passageway 23 of air supply pipe with common compressed air supply source 21.In addition, In supply passageway 23 between each auxiliary jet S and compressed air supply source 21, the common air tank equipped with auxiliary jet is (secondary Tank) 22.In addition, between the assistant tank 22 and each auxiliary jet S, equipped with for controlling the electromagnetism to auxiliary jet S supply compressed air Open and close valve.But in the present embodiment, which is arranged on each auxiliary jet S.That is, the Weft inserting device 1 is secondary spray The structure that mouth S and electromagnetic opening and closing valve 24 are arranged with one-to-one relationship.Specifically, the confession between each auxiliary jet S and assistant tank 22 Have the common supply passageway 23a from assistant tank 22 towards this side each auxiliary jet S to access 23 and is separately connected common confession To the individual supply passageway 23b of access 23a and each auxiliary jet S.Moreover, electromagnetic opening and closing valve 24 is set to individual supply passageway 23b rather than be set to common supply passageway 23a.It therefore, can be for each auxiliary jet S control injection in the Weft inserting device 1 Mode (injection starts timing, injection stop timing (injection period)).

By the way, main burner 7 and auxiliary main burner 6 also via the supply passageway of air supply pipe and auxiliary jet S and Common compressed air supply source 21 connects.But connect supply passageway and the connection of main burner 7 and compressed air supply source 21 The supply passageway of auxiliary main burner 6 and compressed air supply source 21 is common in 21 side of compressed air supply source.Specifically, The supply passageway of main burner 7 and compressed air supply source 21 is connected by the common supply passageway 36 of 21 side of compressed air supply source With from common 36 branch of supply passageway and the supply passageway 32 that connect with main burner 7 is constituted.In addition, connection auxiliary main burner 6 and compressed air supply source 21 supply passageway it is common by the common supply passageway 36 of 21 side of compressed air supply source and from this 36 branch of supply passageway and with auxiliary main burner 6 connect supply passageway 31 composition.In addition, in common supply passageway 36 Equipped with the air tank (main tank) 33 common with main burner 7 and auxiliary main burner 6.In addition, being equipped in supply passageway 32 for controlling The electromagnetic opening and closing valve 35 for supplying compressed air to main burner 7 is made, is equipped in supply passageway 31 for controlling to auxiliary main burner 6 Supply the electromagnetic opening and closing valve 34 of compressed air.

Moreover, being set in each supply passageway 23,31,32 with what main burner 7, auxiliary main burner 6, each auxiliary jet S were connect Each electromagnetic opening and closing valve 24,34,35 is electrically connected with wefting insertion controller 8.Wefting insertion controller 8 is based on to main burner 7, auxiliary main burner 6 And the setting value of each preset spray regime of auxiliary jet S, make each electromagnetic opening and closing valve 24,34,35 that movement be opened and closed and (executes The open and close control of each electromagnetic opening and closing valve 24,34,35).In addition, as shown in Fig. 2, wefting insertion controller 8 has control unit 8a, opening and closing Control is executed by control unit 8a.

In addition, Weft inserting device 1 has the bobbin feeler 14 being arranged to detect the weft yarn of wefting insertion.The bobbin feeler 14 is above-mentioned Reed folder on be set on wefting insertion direction the weft yarn of wefting insertion front end (hereinafter also referred to " weft end ") reach position (hereinafter referred to as For " in-position ") (referring to Fig.1).In addition, the bobbin feeler 14 is configured to, weft end is reached during preset detection When the position, detects the weft yarn and generate its detectable signal.In addition, the bobbin feeler 14 is electrically connected with wefting insertion controller 8.Moreover, The detectable signal of the generation is output to wefting insertion controller 8 by bobbin feeler 14.

In addition, the input setting apparatus 41 of air injection loom is electrically connected with wefting insertion controller 8.In addition, because being known Structure, so the detailed illustration is omitted, but input setting apparatus 41 there is display picture, also function to the effect of display.In addition, The display picture of the input setting apparatus 41 is made of so-called touch panel, by carrying out touch operation to picture, is carried out various Display request or the input of each setting value (including above-mentioned spray regime) setting etc..

In addition, wefting insertion controller 8 is configured to, have storage unit 8b, it will be by the setting value of the input setting of input setting apparatus 41 Etc. being stored in storage unit 8b.Therefore, storage unit 8b is electrically connected with input setting apparatus 41.In addition, storage unit 8b also with it is upper The control unit 8a electrical connection stated.

In addition, wefting insertion controller 8 is electrically connected with the encoder EN of the rotation angle (degree in crank angle) of detection loom main shaft 15, And it is entered the output signal i.e. angle signal θ of encoder EN.By the way, encoder EN also with loom control device 16 Electrical connection, loom control device 16 detect the revolving speed of loom main shaft 15 based on the angle signal θ for carrying out self-encoding encoder EN.

As described above, inputting the unwinding signal exported from unwinding sensor 11 to wefting insertion controller 8 in during wefting insertion RS.Moreover, wefting insertion controller 8 is configured to, when generating unwinding signal RS every time, the time for generating unwinding signal RS is just found out The degree in crank angle of point.Specifically, as shown in Fig. 2, wefting insertion controller 8 has timing test section 8c.In addition, from unwinding sensor The unwinding signal RS of 11 outputs is entered timing test section 8c.In addition, the angle signal θ from above-mentioned encoder EN also by Input timing test section 8c.Moreover, wefting insertion controller 8 is configured to, which is based on the two signals, each When generating unwinding signal RS, degree in crank angle (unwinding timing) the R θ for generating the time point of unwinding signal RS is found out.

In addition, the timing test section 8c is also electrically connected with storage unit 8b in wefting insertion controller 8.Moreover, by periodically detecting The unwinding timing R θ that portion 8c is found out is output to storage unit 8b, and is stored in storage unit 8b.By the way, in this implementation In example, as an example, the wefting insertion length in a wefting insertion is set as to 5 circles of the storage latitude drum barrel 4b in weft yarn length measuring weft storing device 4 (5 circle).In this case, unwinding timing R θ is for each wefting insertion as four times, i.e. from the unwinding timing R θ 1 of the first circle to the The unwinding timing R θ 4 of four circles is found out.Moreover, storing this four unwinding timing R θ 1 to R θ when for each wefting insertion in storage unit 8b 4, the data as a wefting insertion in relation to unwinding timing R θ.

In addition, as described above, generating the time point of arriving signal AS in bobbin feeler 14, arriving signal AS, which is output to, to be drawn Latitude controller 8.Moreover, as shown in Fig. 2, arriving signal AS is input into the timing test section 8c in wefting insertion controller 8.Separately Outside, timing test section 8c is configured to, and based on arriving signal AS and the angle signal θ for carrying out self-encoding encoder EN, also finding out generation should The degree in crank angle at the time point of arriving signal AS.As a result, in wefting insertion controller 8, in timing test section 8c, for drawing every time Latitude find out weft end reach be confirmed as in-position bobbin feeler 14 above-mentioned position time point degree in crank angle it is (actual Weft yarn reaches timing) A θ.Moreover, the weft yarn found out by timing test section 8c, which reaches timing A θ, is output to storage unit 8b.

In addition, control unit 8a also (has with weft brake 5 as described above, wefting insertion controller 8 has control unit 8a For body, the actuator (drive motor M) of movable yarn guide is driven) electrical connection.Moreover, control unit 8a controls the weft thread brake The movement (driving of actuator) of device 5.In addition, the driving of the actuator in control unit 8a control weft brake 5, so that The time point of the weft yarn of wefting insertion specific length, (weft end reached the time point of the position of the predetermined distance relative to in-position The time point of the degree in crank angle of (≠ constant) becoming the time point that weft brake 5 starts the braking to weft yarn, (braking starts Time point).Specifically, the driving of the actuator control as follows.

Firstly, setting above-mentioned braking sart point in time.But the braking sart point in time is not constant degree in crank angle, But 26cm (for example, if setting value is " 26cm ", is left from in-position to main burner side with the distance away from in-position Position) position of the setting main burner side relative to the in-position on wefting insertion direction.In addition, in order to carry out the control, setting The drum barrel diameter of storage latitude drum barrel 4b in weft yarn length measuring weft storing device 4, also, the braking with degree in crank angle setting stopping to weft yarn Time point (end of braking timing).These settings are carried out by input setting apparatus 41, and setting value is stored in storage unit 8b.

As weft yarn is by wefting insertion, in wefting insertion controller 8, the flying speed (hereinafter also referred to as " flight of the weft yarn is found out Speed ").Therefore, wefting insertion controller 8 include for ask the operational part 8d of the flying speed, i.e. with storage unit 8b and control unit 8a The operational part 8d of electrical connection.Moreover, the flying speed starts unwinding timing R θ found out periodically, as described above based on wefting insertion, knits The setting speed of machine, 1 weft length enclosed for storing up latitude drum barrel 4b, the arithmetic expression by being stored in operational part 8d are found out.In addition, such as Upper described, unwinding timing R θ is stored in storage unit 8b, but wefting insertion starts timing and the setting speed of loom is set also by input Determine device 41 and be entered setting, and is pre-stored within storage unit 8b.In addition, the wefting insertion length of 1 circle of storage latitude drum barrel 4b is according to storage It is found out in operational part 8d by operation in the drum barrel diameter of storage unit 8b.

In addition, operational part 8d based on the flying speed found out, the setting speed of loom, from wefting insertion starting position (main jet The front position of mouth) distance of in-position and the setting value in relation to above-mentioned braking sart point in time are arrived (relative to arrival position The distance set) etc., the driving for finding out the driving of the beginning actuator of weft brake 5 starts timing, and is output to control Portion 8a processed.By the way, wefting insertion length is equivalent to from the distance of above-mentioned wefting insertion starting position to in-position.Although the distance It can be set with actual measurement (or being found out according to known numerical value by operation etc.), but can also be by being generally set to weave The setting value of the woven pieces of condition replaces.In addition, the setting value of the woven pieces is also stored in the storage unit 8b of wefting insertion controller 8.

Moreover, control unit 8a starts the driving of actuator, so that weft yarn system in order to which the driving found out according to this starts timing Dynamic device 5 becomes the state i.e. action state that braking is applied with to weft yarn.In addition, being filled by the weft thread brake that control unit 8a is carried out The action state for setting 5 continues to above-mentioned end of braking timing, and reaches the time point of the end of braking timing in degree in crank angle, Driving of the stop control unit 8a to actuator.

By the way, wefting insertion is consecutively carried out in loom, but the state of flight of the weft yarn in each wefting insertion is not limited to It is always constant, deviation is generated in each wefting insertion sometimes or is changed with woven progress.Moreover, in this feelings Under condition, the position of the weft end under identical degree in crank angle is not constant.Even in this case, according to drawing as described above Latitude controller 8 also always reaches in weft end away from wefting insertion starting position same distance the action control of weft brake 5 The time point of position starts braking of the weft brake 5 to weft yarn.

In addition, finding out method as what above-mentioned driving started timing, it may be considered that the two following methods, that is, use exists Found out with the flying speed that is found out in driving weft brake 5 (actuator) identical weaving cy-cle or use than The flying speed that finds out in the preceding weaving cy-cle of the weaving cy-cle of the driving is found out.In the previous case, it is based on wefting insertion The unwinding timing R θ of such as first half in period finds out flying speed, and during the identical wefting insertion in find out driving start it is fixed When.In addition, in the latter case, for example, being asked using the flying speed found out by the wefting insertion in previous weaving cy-cle The driving starts timing etc..In addition, in the latter case, can also be followed to the loom of each preset quantity (multiple) The ring period finds out the driving timing, and replaces finding out the method that the driving starts timing to each weaving cy-cle.But this In the case of, weft brake 5 starts timing in identical driving and starts driving until finding out next driving beginning timing.

In the Weft inserting device of air injection loom as described above, when the initial setting stage before starting weaving When setting the spray regime of auxiliary jet, information, that is, weft yarn flight information setting of the state of flight of the related weft yarn based on imagination is secondary The setting method of the spray regime of nozzle is well-known.In addition, the weft yarn flight information be can by degree in crank angle and One side of the distance (hereinafter also referred to " woven pieces position ") away from wefting insertion starting position on woven pieces direction as horizontal axis, by another party It is above-mentioned as being drawn in the chart area of the longitudinal axis in the form of line chart (line chart for indicating the state of flight is known as " flight line ") The information of state of flight.Moreover, the present invention is also premised on this setting method.Moreover, in the present invention, it as an example, should Weft yarn flight information is found out as follows.Firstly, in the present embodiment, will illustrate an example of the invention as premise below.

Weft yarn flight information as can on the chart area using degree in crank angle as horizontal axis, using woven pieces position as the longitudinal axis with The information that the form of flight line carries out graphical display to the state of flight of the weft yarn of the imagination is found out.In addition, Fig. 3 is indicated based on such as The aftermentioned weft yarn flight information found out, it is aobvious when the chart area on the display picture for inputting setting apparatus shows flight line g Example.

Above-mentioned wefting insertion length (wefting insertion starting position to in-position) is replaced by woven pieces, as shown, the woven pieces is set as 260cm.In addition, as described above, starting timing, setting value about the wefting insertion in the storage unit 8b for being stored in wefting insertion controller 8 It is set as θ s (80 ° of degree in crank angle is equivalent in example illustrated).In addition, target weft yarn reaches timing, (hereinafter referred to as " target is reached Setting value periodically ") is θ e (246 ° of degree in crank angle is equivalent in example illustrated), and the setting value is also via input setting apparatus 41 It is stored in storage unit 8b.Therefore, in Fig. 3, θ s is shown as wefting insertion and starts angle, and θ e is shown as target angle of arrival.Cause This, as described above, the starting point of the flight line g on the chart area is that the longitudinal axis (is knitted when drawing flight line g on chart area Width position) equal to 0 (zero) (cm) position and horizontal axis (degree in crank angle) equal to θ s (°) position (position of coordinate [0, θ s], The position indicated in Fig. 3 with symbol " a ").In addition, the point of arrival is the position of the longitudinal axis (woven pieces position) equal to 260 (cm) and horizontal axis The position (position of coordinate [260, θ e], the position indicated in Fig. 3 with symbol " b ") of (degree in crank angle) equal to θ e (°).

In addition, about the distance for the braking sart point in time for being set to above-mentioned weft brake, i.e. relative to arriving Up to the distance of position, setting value is Lr (cm).It is opened that is, the setting of braking sart point in time becomes to reach in weft end away from wefting insertion The distance of beginning position is to start the setting of braking of the weft brake to weft yarn the time point of the position of (260-Lr) cm.It is suitable Just it says, in Fig. 3, the Lr of the setting value as braking sart point in time is shown as WBS operating position.Based on above Premise sets first position and the second position described in the present invention.

The first position is the woven pieces of the weft end at the time point that the flying speed of weft yarn is considered reaching stable speed Position is set to the woven pieces position (position of the L1 of the longitudinal axis) of the distance L1 away from wefting insertion starting position on woven pieces direction.This Outside, it about the first position, such as is found out in the form of finding position appropriate and being tested.

In addition, the second position is set to the woven pieces position of the braking sart point in time of weft brake in the present embodiment Set (position that the distance to in-position is Lr).That is, braked by weft brake to weft yarn, flying speed is from steady Fixed velocity variations (slack-off) are at the speed for corresponding to the brake force, therefore, the braking sart point in time of the weft brake Woven pieces position be set to the second position.Therefore, the distance L2 (position of the L2 of the longitudinal axis of the second position away from wefting insertion starting position Set) it is L2=260-Lr (cm).

Moreover, about first position, setting value L1 is set by input with setting first position and the second position in this way Determine device input setting, and is stored in the storage unit of wefting insertion controller.In addition, about the second position, based on being stored in storage unit The value that the setting value (Lr) of above-mentioned braking sart point in time and the setting value (260 (cm)) of woven pieces are found out by operational part, is set For setting value L2 (being stored in storage unit).

Moreover, as described above, being equal to L1 by setting first position, the second position is equal to L2, the woven pieces on woven pieces direction Section (woven pieces position: 0 to 260 (cm)) position (wefting insertion start bit of the woven pieces position from 0 (cm) is divided into setting Set) to the first interval of first position L1, woven pieces position from first position L1 to the second interval of second position L2 and woven pieces position Set the 3rd interval from the second position L2 to in-position.

In addition, flight line g is equivalent to the track of the weft end from wefting insertion starting position to in-position as described above, whole A woven pieces section is continuous.Therefore, by as described above by the interval division of woven pieces at three sections, can be divided into this three The corresponding part in a section handles flight line g.I.e., it is possible to which flight line g to be regarded as to first part's flight line of first interval What the Part III flight line g3 of g1, the second part flight line g2 of second interval and 3rd interval were drawn in a continuous fashion Flight line.

Based on above-described premise, in the present invention, weft yarn flight information by as by flight line g at first The information that the curved form of L1 and second position L2 is drawn is set to find out.It can be with namely based on the flight line g of the weft yarn flight information First part flight line g1 and Part III flight line g3 relative to above-mentioned second part flight line g2 it is not parallel (be not phase With angle) form drafting.Specifically, when drawing flight line g on above-mentioned chart area, on flight line g Continuous first to each section flight line g1 to g3 of third is drawn in the form of following: about with X-axis or being parallel to the straight line of X-axis Angulation (angle of acute angle), second part flight line g2 is bigger than first part flight line g1, and Part III flight line G3 is smaller than second part flight line g2.

Therefore, flight line g includes two bending points K1, K2, is the starting point close to flight line g by one bending point K1 Point (hereinafter referred to as " the first bending point ") K1 of this side of a is set in the first position L1 on woven pieces direction, by the curved of another party Song point K2 is set in woven pieces direction close to point (hereinafter referred to as " the second bending point ") K2 of this side of the point of arrival b of flight line g On second position L2.

Moreover, as described above, according to flight line g can be depicted as from above-mentioned starting point a to the line chart of above-mentioned point of arrival b, And first situation continuous to Part III flight line g1 to g3, first part flight line g1 is using above-mentioned starting point a as starting point And using the first bending point K1 as the partial straight lines of terminal, second part flight line g2 be using the first bending point K1 as starting point and Using the second bending point K2 as the partial straight lines of terminal.In addition, Part III flight line g3 be using the second bending point K2 as starting point simultaneously And using above-mentioned point of arrival b as the partial straight lines of terminal.It therefore, is known information according to above-mentioned starting point a and above-mentioned point of arrival b The case where, by determining the first bending point K1 and the second bending point K2, the letter in relation to each section flight line g1 to g3 can be found out Breath (can draw the information of each section flight line g1 to g3 on chart area and indicate starting point, terminal and its indicate the part Straight line it is linear)

In addition, as described above, weft yarn flight information is can to draw above-mentioned state of flight in the form of its flight line g Information, in addition, as described above, the flight line is constituted by first to Part III flight line g1 to g3.Therefore, weft yarn flight information It is set to the information comprising the information in relation to each section flight line g1 to g3, in order to find out related each section flight line g1 to g3 Information and determine (setting) the first bending point K1 and the second bending point K2.Hereinafter, being bent to the first bending point K1 and second The setting method of point K2 is described in detail.

In the present embodiment, it is set as finding out the straight line for indicating the second part flight line assumed based on the information found out in advance Formula, and according to the linear example for seeking the first bending point K1 with first position.

In addition, as described in earlier application, indicate second part flight line it is linear can based on wefting insertion and The unwinding timing (the four unwindings timing obtained when being the 1st to 4 circle weft yarn of each unwinding in the present embodiment) of the weft yarn of acquisition is asked Out.But because the present invention relates to the settings of the weft yarn flight information in initial setting stage, for asking the second part to fly Each unwinding timing of line (the first bending point K1) is not the measured value in weaving but the predicted value that finds out in advance.That is, for This woven initial wefting insertion finds out the predicted value of each unwinding timing of imagination in advance, finds out second part flight based on the predicted value Line (in turn, the first bending point K1).

By the way, as long as being tested etc. in advance prior to being originally woven in the loom, so that it may find out each unwinding The predicted value of timing.But the time is expended in the object loom of the woven fabric factory of client (for the client of loom manufacturer), it is difficult To carry out this test.Therefore, the test and based on the test ask the operation of the first bending point substantially by loom manufacturer into Row.But in the test of loom manufacturer, it is not limited to (same size and identical be knitted with the identical condition of object loom Make condition) loom tested, in particular, the loom in the object is the wide cut for being more than woven pieces 250cm as shown in Figure 3 In the case where loom, in many cases, it is impossible to carry out the test of the loom of same size.

Therefore, in this case, tested with the different loom of woven pieces equal-specification.Moreover, what is carried out allows for this The difference of the specification of the loom of object and the loom tested or the difference etc. of weaving condition (wefting insertion condition), amendment passes through Each unwinding timing (average value) of the acquisitions such as the test, thus to obtain the predicted value of each unwinding timing.Moreover, in the present embodiment, The case where predicted value of each unwinding timing is also obtained by.But the predicted value being achieved in that is also not sometimes and knits with object The corresponding each unwinding timing of the state of flight of the practical weft yarn of machine, therefore, by the linear expression that is found out according to the predicted value Strictly speaking value that second part flight line assumes that is served only for determining the first bending point.

Reach in addition, each unwinding timing is equivalent to its weft end in wefting insertion and be equivalent to the unwinding the number of turns (1 to 4 circle) amount The degree in crank angle at the time point of the woven pieces position of the length of weft yarn.In addition, the length of the weft yarn of unwinding the number of turns amount (is equivalent to this The woven pieces position of length) it is known information, storage unit is stored in via input setting apparatus in advance.Therefore, by as described above The predicted value for obtaining each unwinding timing of the 1st to 4 circle finds out drawable four coordinates on above-mentioned chart area.

Moreover, can find out indicates on above-mentioned chart area for four coordinates based on four coordinates found out The drawable near linear of point (regression straight line) formula (near linear formula).Specifically, for seeking the near linear formula (more specifically, the near linear formula is by linear function: indicating in the form of Y=aX+b, and a, arithmetic expression b) is asked to be stored in Operational part finds out the near linear formula in operational part.Moreover, the near linear so acquired, which becomes, indicates the of above-mentioned hypothesis Two part flight lines it is linear.

But second part flight line indicates the state of flight in the weft yarn of second interval, with first on woven pieces direction Position L1 be starting point drawn on chart area, therefore, according to the near linear formula (Y=aX+b) found out as described above and about The second part that the intersection point that the formula (Y=L1) of woven pieces position expression first position finds out the straight line indicated with two formulas assumes flies Coordinate on the chart area of the starting point of line, i.e. coordinate on the chart area of the first bending point K1.

Second bending point K2 is the terminal of second part flight line g2, as described above, the terminal (the second bending point K2) can With according to indicating the linear of second part flight line g2 and indicate that the formula (Y=L2) of the second position is asked about woven pieces position Out.But as noted above it is believed that above-mentioned predicted value does not correspond to the unwinding timing of the state of flight of practical weft yarn.Moreover, Think that the second part flight line g2 found out based on such predicted value is especially closer instead for yarn side, it is practical further away from expression Weft yarn state of flight flight line.Therefore, it is found out based on the predicted value according to each unwinding timing as described above Second part flight line is asked in the setting method of the second bending point K2, can not obtain the second bending point K2 appropriate sometimes.

Therefore, in the present invention, the setting that the second bending point K2 is sought in timing is reached using based on known information, that is, target Method.Specifically, the setting method is as follows.

Firstly, the target for being determined as benchmark reaches timing (hereinafter also referred to " benchmark timing ").In addition, benchmark timing Timing appropriate is set in terms of loom manufacturer based on empirical value etc..Moreover, making after the benchmark timing has been determined For under the specification and weaving condition of the loom of object, optimal the when benchmark timing carries out wefting insertion is determined by test etc. The degree in crank angle (hereinafter also referred to " benchmark degree in crank angle ") of two bending point K2.By the way, benchmark degree in crank angle is second Therefore the degree in crank angle of bending point (terminal of second part flight line) K2 is than the benchmark timing (song of the terminal of flight line g Handle angle) small angle, and be the angle bigger than the degree in crank angle of the first bending point (starting point of second part flight line) K1.

In addition, as described above, on condition that (same size and identical being knitted without condition identical with the loom as object Make condition) under test, but for example grasp the trend by carrying out the test under multiple weaving conditions and analyzed, determine it Benchmark degree in crank angle.By the way, this test and trend analysis are carried out when if determining the weaving condition of the loom every time, It thus can also then set the second bending point K2.But in this setting method, each weaving condition is changed, and is needed big The time and labor of amount is unsatisfactory for the second bending point of setting K2.

Therefore, in the present invention, predetermined benchmark timing as described above, while found out in advance relative to benchmark timing Wefting insertion benchmark degree in crank angle, be then based on the benchmark timing and target reach timing size relation find out amendment base in advance The amendment type of quasi- degree in crank angle, the target based on setting reaches the degree in crank angle that timing finds out the second bending point K2 as a result,.

Specifically, set benchmark timing as θ e0, benchmark degree in crank angle be θ x0, the target of setting reach timing be θ e, When the degree in crank angle of the second bending point K2 found out is θ x, the correction factor based on above-mentioned size relation is a, b, the amendment type Are as follows:

In the case where θ e < θ e0: θ x=θ x0- { (θ e0- θ e) × a },

In θ e > θ e0: θ x=θ x0+ { (θ e- θ e0) × b }.

About the amendment type, in the case where θ e < θ e0, the degree in crank angle θ x of the second bending point K2 is also than benchmark crankangle It is small to spend θ x0, therefore, the degree in crank angle θ x of the second bending point K2, which becomes to subtract from benchmark degree in crank angle θ x0, reaches timing with target The corresponding resulting value of correction value.Moreover, the difference that timing θ e0 and target reach timing θ e on the basis of the correction value (subtraction value) multiplies With the resulting value of correction factor a.In addition, the degree in crank angle θ x of the second bending point K2 is also than benchmark song in the case where θ e > θ e0 Handle angle, θ x0 is big, and therefore, the degree in crank angle θ x of the second bending point K2 becomes to be added and target relative to benchmark degree in crank angle θ x0 Reach the corresponding resulting value of correction value of timing.Moreover, the correction value (additive value) is that target reaches timing θ e and benchmark timing θ The difference of e0 is multiplied by the resulting value of correction factor b.

In addition, the test of timing is for example reached by being changed target under multiple weaving conditions, based on its result point Analysis trend finds out the correction factor a, b.By the way, a is the positive number less than 1, and b is the positive number greater than 1.In addition, a, b can To be set as value corresponding with weaving conditions such as woven pieces, condition close in the case where also can be set as identical value.

As an example, the woven pieces illustrated in the present embodiment is in the loom of 260cm, is θ e0=236 ° in benchmark timing, And in the case that benchmark degree in crank angle at this time is θ x0=196 °, if setting a=0.8, b=1.1, above-mentioned the present embodiment Target reach timing be θ e=246 ° when the second bending point K2 degree in crank angle θ x are as follows:

θ x=196+ { (246-236) × 1.1 }=207 (°).

By the way, in the case where it is θ e=230 ° that target, which reaches timing, are as follows:

θ x=196- { (236-230) × 0.8 }=191 (°).

But no matter which kind of situation, by benchmark timing and target reach timing difference multiplied by the resulting result of correction factor It in the case where comprising decimal point the following value, is carried out again to base after rounding up below by the multiplication result decimal point Addition or subtraction when certainly.

According to setting method as described above, only sets and reach timing as the target of one of weaving condition, can be based on The target reaches the degree in crank angle that timing finds out the second bending point K2 by calculating.Moreover, being asked by acquiring the degree in crank angle Coordinate in the chart area of the second bending point K2 (θ x, L2) out.

More than in addition, θ e < θ e0, the situation of θ e > θ e0 respectively are described, but reach timing and base in target In the case where (θ e=θ e0) identical when certainly, certainly, the degree in crank angle θ x and benchmark degree in crank angle of the second bending point K2 at this time θ x0 identical (θ x=θ x0).

Moreover, by finding out the first bending point K1 and the second bending point K2 as described above, for using them as starting point and end The second part flight line g2 of point, asks the information in relation to second part flight line g2 (by the partial straight lines on chart area Information needed for drawing is to indicate the formula and starting point, terminal of its straight line).In addition, as described above, first part flight line g1 with Above-mentioned starting point a is starting point, and using the first bending point K1 as terminal, Part III flight line g3 is with the second bending point K2 Point, and using above-mentioned point of arrival b as terminal, in addition, above-mentioned starting point a and above-mentioned point of arrival b are known information, it is therefore, right In the information in relation to these part flight lines g1, g3, the first bending point K1 and the second bending point K2 is also found out.Moreover, having It closes first information to Part III flight line g1 to g3 found out and is output to storage unit, and be stored as weft yarn flight letter Breath.

Weft yarn flight information as described above becomes the state for being stored in storage unit, so as in the aobvious of input setting apparatus Show on picture, draws (imagination) latitude for indicating the weft yarn flight information on above-mentioned chart area in the form of flight line g Yarn state of flight.Specifically, inputting setting apparatus institute when input setting apparatus is operated and becomes generating the state of display request The display controller (illustration omitted) having is read in from the storage unit in wefting insertion controller (to be had comprising above-mentioned weft yarn flight information Close the information of the first, second, third part flight line g1 to g3) necessary information.Moreover, display controller is based on these information Above-mentioned chart area is shown on display picture with scheduled display mode (format), also, to be plotted in the chart area Form on domain carries out graphical display to each section flight line g1 to g3 (referring to Fig. 3).

In addition, being used for operator can be grasped by vision about graphical displays such as flight line g on the display picture The state of flight etc. of weft yarn, in the spray regime as described above based on flight line setting auxiliary jet, even if the not display Also it is able to carry out the setting.Therefore, in the present invention, which is not required condition.In addition, the display is not limited to Fig. 3's Graphical display can also be shown in the form indicated with numerical value etc..

By the way, it is shown shown in Fig. 3, than indicating horizontal axis that woven pieces position is 0 position on the lower Display indicates main burner and assists the spray regime of main burner.Specifically, the display of upside indicates the injection side of main burner Formula, timing and injection stop timing (injection period) since the injection that the display can grasp main burner.In addition, downside is aobvious Show the spray regime for indicating auxiliary main burner, timing and injection terminate since the injection that the display can grasp auxiliary main burner Periodically (injection period).In addition, in the example in the figures, the injection of main burner and auxiliary main burner starts timing setting in wefting insertion Before beginning timing θ s.That is, the Weft inserting device of this is set to start main burner and auxiliary before wefting insertion starts timing θ s The injection of main burner starts wefting insertion at the time point that locking pin is released from the locking of weft yarn.

As described above, being arranged with weft yarn flight information is found out as described above with electromagnetic opening and closing valve with one-to-one relationship The spray regime of each auxiliary jet be set.Spray regime about each auxiliary jet based on this weft yarn flight information is set It is fixed, various setting methods are had proposed in above-mentioned patent document 1 or other previous technical literatures, as long as based on any Kind setting method carries out.Hereinafter, an example to the setting method is illustrated.In addition, in the following description, to conduct The information setting of spray regime in relation to each auxiliary jet, which starts timing and injection for the injection of the control in wefting insertion, to be terminated to determine When example described.In addition, in the following description, in the weaving of woven pieces 260cm as described above, auxiliary jet The case where pitch is set to 65mm, and Weft inserting device has 40 auxiliary jet S is described.In addition, in the following description, It distinguishes in the case where indicating 40 auxiliary jet S, by from wefting insertion starting position side, first nozzle of number is denoted as S1 in auxiliary jet S, Be denoted as in order below S2, S3 ..., S40.

It is located at firstly, for woven pieces position of 40 auxiliary jet S1 into S40 in relation to including in Weft inserting device above-mentioned Auxiliary jet (hereinafter referred to as " second group of auxiliary jet ") in second interval, based on related second flight line found out as described above The information of g2 and preset setting advance angle etc. set its injection and start timing and injection stop timing.

By the way, the advance angle of the spray regime of so-called auxiliary jet refers to relative to thinking that weft end reaches secondary spray The time point (degree in crank angle) of woven pieces position existing for mouth, the injection period in advance which is first sprayed, i.e., by crank During angular range (hereinafter referred to as " the angular range ") expression of angle.In addition, being based on aftermentioned figure shown in Fig. 3 In display, the display of the spray regime in relation to each auxiliary jet on the longitudinal axis (woven pieces position) direction by having the horizontally long length of width Rectangular expression.But in the display, downside (close to the side of wefting insertion starting position) in rectangular two long sides The position of long side is equivalent to the woven pieces position of each auxiliary jet.Therefore, in this embodiment, second group of auxiliary jet is by from wefting insertion start bit The 3rd auxiliary jet S3 to the 36th auxiliary jet S36 of side number is set to constitute.Moreover, the woven pieces position of all auxiliary jet S first passes through in advance Input setting apparatus is entered setting, and is stored in storage unit in the form of corresponding with each auxiliary jet.

Moreover, the spray regime of second group of the auxiliary jet S3 to S36 is set as follows.Firstly, setting for spray regime Fixed above-mentioned setting advance angle sets its setting value by input setting apparatus input, and is pre-stored within storage unit.The setting The setting value of advance angle is inputted or is preset with numerical value by input setting apparatus, stores multiple angular ranges, according to weaving Condition etc. is selected and is inputted.Moreover, the setting value based on the setting advance angle, in initially setting stage or weaving, in wefting insertion The injection that the operational part of controller finds out second group of each auxiliary jet Sm (m:3 to 36) starts timing.Specifically, as follows.

For each auxiliary jet Sm, operational part uses the woven pieces position and second for being stored in related each auxiliary jet Sm of storage unit The near linear formula of the information of flight line g2 finds out the crankangle at the time point for the position for thinking that weft end reaches auxiliary jet Sm Spend θ m.But the time point found out is state (the imagination flight shape that weft yarn flight is assumed to the state of flight of above-mentioned imagination State) under, the degree in crank angle of the position of thinking weft end and reach auxiliary jet Sm.Moreover, for each auxiliary jet Sm, operational part from The setting value θ p of setting advance angle is subtracted in the above-mentioned degree in crank angle θ m found out.Moreover, the crank obtained by the subtraction The injection that angle (θ m- θ p) is set to each auxiliary jet Sm starts timing.In addition, starting timing as such setting injection As a result, the advance angle (angle model Wall) in the spray regime of second group of each auxiliary jet Sm is consistent with above-mentioned setting advance angle.

In addition, the injection stop timing of each auxiliary jet Sm about second group, they are according to the woven pieces position of each auxiliary jet Sm It sets, based on the data or empirical value etc. in for example past weaving, is set to timing appropriate.In addition, terminating about injection The setting of timing, such as can also be based on the preset rear injection period (crankangle of the position of weft end arrival auxiliary jet S During spending injection stop timing) or the setting value etc. of injection period is set entirely.Specifically, for example, will correspond to The setting value of each auxiliary jet Sm or as fixed setting value it is above-mentioned after injection period be pre-stored within storage unit, by should Afterwards the setting value of injection period be added to find out as described above think that weft end reaches the degree in crank angle of the position of each auxiliary jet Sm On, set the injection stop timing of each auxiliary jet Sm.

Moreover, the information of the spray regime in relation to second group of each auxiliary jet Sm as above set, with each auxiliary jet Sm Corresponding form is stored in the storage unit in wefting insertion controller together with above-mentioned woven pieces position.

About woven pieces position, relative to the auxiliary jet (first group auxiliary jet S1, S2) being located in above-mentioned first interval and Auxiliary jet (the auxiliary jet S37 to S40) of third group, following letter of the setting in relation to the spray regime in above-mentioned 3rd interval Breath (injection starts timing, injection stop timing).

About the auxiliary jet S1 (auxiliary jet of wefting insertion starting position side) in first group auxiliary jet S1, S2, in this implementation In example, injection start timing by injection with main burner start timing it is consistent in the form of set.That is, the injection of auxiliary jet S1 Start timing and the form that is set together of setting of timing is started to set with the injection with main burner, rather than passes through operation It finds out.Therefore, the injection of main burner start timing be changed in the case where, the injection of auxiliary jet S1 start timing also together by Change.

It is asked by method same as second group of auxiliary jet Sm in operational part in addition, the injection of auxiliary jet S2 starts timing Out.Specifically, firstly, using linear in the information for the related first flight line g1 for being stored in storage unit, directly according to this The woven pieces position of wire type and auxiliary jet S2 find out the woven pieces for thinking that weft end reaches auxiliary jet S2 under above-mentioned imagination state of flight The degree in crank angle at the time point of position.Moreover, found out according to the setting value θ p of the degree in crank angle found out and setting advance angle The injection that degree in crank angle is set to auxiliary jet S2 starts timing.

In addition, the injection stop timing of auxiliary jet S1, S2 about first group, these injection stop timings with second group Auxiliary jet Sm identical method set.Moreover, the spray regime in relation to first group auxiliary jet S1, the S2 set in this way Information is also collectively stored in the storage of wefting insertion controller in the form of corresponding with each auxiliary jet S1, S2 with above-mentioned woven pieces position Portion.

About the auxiliary jet S37 to S40 of third group, in the present embodiment, the flight line for starting timing and finding out is sprayed G3 is unrelated, to maintain to start with the injection for the auxiliary jet for being located at wefting insertion starting position side (previous on the heading of weft yarn) The form of the relationship of timing is set.Specifically, the injection as the auxiliary jet Sm for asking second group as described above starts timing As a result, when auxiliary jet Sm injection start timing and auxiliary jet Sm+1 injection start timing difference θ d is calculated as with degree in crank angle When, auxiliary jet S37 near wefting insertion starting position side of the auxiliary jet S37 into S40 about third group, relative to second group Auxiliary jet S36 (auxiliary jet near in-position side) injection start timing start after degree in crank angle θ d injection side Formula sets the injection and starts timing.Equally, about auxiliary jet S38 to S40, also based on the auxiliary jet for being located at wefting insertion starting position side The injection of S37 to S39 starts its injection beginning timing of timing setting.Therefore, in this case, the spray of auxiliary jet S37 to S40 It is bigger than the advance angle in the spray regime of second group of auxiliary jet Sm to penetrate the advance angle in mode (injection period in advance).

In addition, the auxiliary jet S37 to S40 about third group, injection stop timing with first, second group of pair also to spray Mouth different form is set.Specifically, the injection stop timing of auxiliary jet S37 with injection period thereafter with it is previous above-mentioned The corresponding form of rear injection period (such as consistent mode) of auxiliary jet (second group of auxiliary jet S36) is set.Another party Face sets it with arbitrary degree in crank angle and sprays stop timing about auxiliary jet S38 to S40.The setting considers to be set to sprays than pair Mouth S40 is examined by the spray regime of the draw jet (illustration omitted) of anti-wefting insertion starting position side or the harness motion of warp thread etc. Consider the feelings that weft yarn will not be made to generate relaxation after the time point (time point that weft end reaches in-position) that wefting insertion terminates Condition is set as degree in crank angle appropriate.Moreover, the spray regime of the auxiliary jet S37 to S40 in relation to the third group set in this way Information is also stored in wefting insertion controller together with above-mentioned woven pieces position in the form of corresponding with each auxiliary jet S37 to S40 Storage unit.

By as above acquiring the information of the spray regime in relation to each auxiliary jet, and it is stored in depositing for wefting insertion controller Storage portion, can be on the display picture of input setting apparatus, in the form drawn on above-mentioned chart area to the auxiliary jet Spray regime is shown.Specifically, when become input setting apparatus operated and produce display request state when, it is above-mentioned Display controller the information in relation to its spray regime is read in from storage unit for each auxiliary jet, and it is winged depicting as described above On the chart area of line g, by it is as described above it is rectangular in a manner of graphically illustrate its spray regime (Fig. 3).In addition, related The information of the spray regime of each auxiliary jet is also input to the control unit of wefting insertion controller.Moreover, control unit is based on related be somebody's turn to do The information of spray regime executes the open and close control of each electromagnetic opening and closing valve.As a result, each auxiliary jet executed in weaving according to The injection action of its spray regime assists the wefting insertion (flight of weft yarn) of each weft yarn supply series as a result,.

Fig. 4 is indicated for seeking weft yarn flight information in previous consideration method, i.e. to link above-mentioned starting point a with straight line The case where acquiring the flight line for indicating the state of flight imagined with the form of point of arrival b, based in the flight line setting present invention The result of the spray regime of the described auxiliary jet (second group of auxiliary jet) positioned at second interval.In addition, being used in the Fig. 4 The straight line f that double dot dash line indicates indicates the flight line based on the weft yarn flight information acquired by previous consideration method, with reality The curve g that line indicates indicates the flight line based on the weft yarn flight information acquired as described above according to the present invention.In addition, in the figure In, spray regime (the injection side in the case where the present invention based on the flight line g of the invention each auxiliary jet acquired as described above Formula) it is shown in the form drawn with dotted line.Moreover, in the figure, about second group of each auxiliary jet Sm, based on flight line f with The above-mentioned spray regime (previous spray regime) similarly found out in the form of depicted as solid lines to show.In addition, the example of diagram Son is an example eventually, but in this embodiment, and flight line f and flight line g are from the 16th auxiliary jet S16 of wefting insertion starting position number Intersect between the 17th auxiliary jet S17.

According to the Fig. 4, the spray regime of the invention (spray based on the flight line g closer to actual weft yarn state of flight Penetrate mode) and the relationship of previous spray regime (spray regime proposed in patent document 1) can understand as follows.It is previous at this Spray regime in, than auxiliary jet S17, by the auxiliary jet of wefting insertion starting position side, (spray regime of auxiliary jet S3 to S16) is set Being set to it, to shift to an earlier date injection period longer than the spray regime in the case where aforementioned present invention.Therefore, in the previous spray regime In, such as when the injection in advance through setting advance angle is effectively to spray, it will be to shift to an earlier date the amount volume of angular length than the setting It is outer to be sprayed, from the viewpoint of specific air consumption, generate waste.In addition, comparing auxiliary jet in the previous spray regime S16 by in-position side auxiliary jet (spray regime of auxiliary jet S17 to S36) be set in advance injection period than above-mentioned Spray regime in the case where invention is short.Therefore, in the previous spray regime, it is possible to produce the state of flight of weft yarn or The problem of state of its weft yarn to fly is deteriorated without can be carried out wefting insertion appropriate.In contrast, according to the present invention, because with more Form close to the actual state of flight of weft yarn seeks flight line g, so the injection of each auxiliary jet set based on flight line g Actual state of flight of the mode more suitable for weft yarn, it is therefore prevented that the generation of the above problem.

Embodiment (above-described embodiment) for the above-described, the present invention can also be carried out by such as following (1) to (8) The embodiment (variation) of deformation is implemented.

(1) Weft inserting device of the air injection loom premised on the present invention, i.e. application Weft inserting device of the invention, no It is limited to the Weft inserting device that auxiliary jet described in above-described embodiment and electromagnetic opening and closing valve are arranged with one-to-one relationship.As sky The Weft inserting device of gas jet formula loom, also has to be configured to for all auxiliary jets being divided into and is made of respectively more than two auxiliary jets Multiple groups, and the Weft inserting device that all auxiliary jets for including in each group are all connect with common electromagnetic opening and closing valve, this hair It is bright also to can be applied to such Weft inserting device.In addition, the spray regime of the auxiliary jet of each group is directed in this Weft inserting device Common each electromagnetic opening and closing valve is set.

(2) above-described embodiment is to the Weft inserting device for having weft brake using example of the invention.That is, above-mentioned reality Applying example is to consider it for applying the Weft inserting device changed by flying speed of the weft brake to weft yarn in wefting insertion latter stage The variation of flying speed and apply example of the invention.But the present invention is not for having the Weft inserting device of weft brake It is also effective.Though this is because being that Weft inserting device does not have weft brake, in wefting insertion from above-described embodiment In described first position arrive the entire path of in-position, weft yarn is not necessarily with stable speed flight (flying speed perseverance It is fixed), because of the spray regime of main burner or weaving condition etc., final stage during wefting insertion, the flying speed drop of weft yarn sometimes It is low.Therefore, it is filled using the wefting insertion that Weft inserting device of the invention is not limited to have as above-described embodiment weft brake It sets, also includes the Weft inserting device for not having weft brake.

(3) about the first position set in acquiring weft yarn flight information, in the above-described embodiments, the first position is logical The method that acquires based on the test in the loom is crossed to find out.But in the present invention, which is not limited to based on this Kind of test is to find out, such as the method that can also be acquired ands the empirical value or anticipation etc. obtained based on past weaving is asked Out.

In addition, the position for the auxiliary jet that the first position can also be configured based on the flight path along weft yarn is set It is fixed.This is because when the compressed air sprayed by main burner reaches the position of auxiliary jet from the weft yarn that main burner projects, latitude The state of flight of yarn starts to be influenced by the compressed air bring that the auxiliary jet sprays, and by applying the influence, weft yarn flies Scanning frequency degree is towards stable velocity variations.Accordingly it is also possible to pass through the auxiliary jet for the side that will be located adjacent to wefting insertion starting position What the position of any of (such as third to the 4th auxiliary jet) was set as first position asks method to set first position.

(4) about the second position set in acquiring weft yarn flight information, in the above-described embodiments, which is installed It is set to the position set as the braking sart point in time of weft brake (to the distance of in-position as the position of Lr).But It is, as described above, the present invention also can be applied to the Weft inserting device for not having weft brake, to be applied to do not have weft yarn In the case where the Weft inserting device of brake apparatus, certainly, the second position not as weft brake braking sart point in time The position of setting.Therefore, in this case, as long as example, by attempt in the same manner as the first position with above-described embodiment into Row test etc. and find position appropriate or the side of the second position is asked in the empirical value obtained based on past weaving or anticipation etc. Method asks the second position.

(5) about the first bending point, in the above-described embodiments, the predicted value of each unwinding timing is found out (more by test etc. Specifically, the value for each unwinding timing that initial wefting insertion woven to the sheet in the loom as its object is envisioned), together When, linear (the near linear formula) for indicating the second part flight line assumed is sought according to the predicted value, moreover, about the straight line Formula and woven pieces position, according to the coordinate for indicating that the formula of first position determines the first bending point.That is, in the above-described embodiments, with Based on the predicted value of each unwinding timing, according to its predicted value and set the first bending point of information setting.

But when setting the first bending point, it is not limited to the predicted value based on each unwinding timing as above-described embodiment The setting method of setting.For example, it is also possible to consider knitting for the reference referring to the first bending point actually used in other looms The first bending point in the decision objects loom such as weaving condition of machine.

(6) alternatively, it is also possible to be tested as above-described embodiment with the different loom of specification and weaving condition, into Gone the test loom in seek the first bending point appropriate after, consider first bending point found out and carried out test Specification, weaving condition of loom etc., the first bending point in the loom of decision objects.In addition, seeking the loom for carrying out the test The first bending point when, be not limited to that stroboscopic also can be used based on periodically (detected value) acquiring by each unwinding for finding out of test Visualizer etc. observes the state of flight of weft yarn, and the degree in crank angle of the first bending point is sought based on the observation result.

(7) it about the second bending point, in the above-described embodiments, is found out in advance based on benchmark timing and benchmark degree in crank angle Amendment type, reaches timing by the target that one of weaving condition will be used as to set and substitutes into the amendment type, finds out the by calculating The degree in crank angle of two bending points.Moreover, finding out the degree in crank angle of the second bending point in this way, the seat of the second bending point is set Mark.

But when seeking the degree in crank angle of the second bending point, it is not limited to pass through as above-described embodiment using amendment type Calculating acquires.For example, reaching timing using above-mentioned amendment type etc. to multiple targets of imagination and finding out in advance and the arrival of its target The periodically degree in crank angle of corresponding second bending point.Moreover, production makes target reach timing and the second corresponding bending point The corresponding form of degree in crank angle database, and by the database purchase in storage unit.Furthermore, it is also possible to be arrived with target Setting (being stored in storage unit) is inputted by input setting apparatus up to timing, selects from database and is reached with the target of input setting Periodically the form of the degree in crank angle of corresponding second bending point seeks the degree in crank angle of the second bending point.

(8) in the setting method illustrated in the above-described embodiments, the injection of the auxiliary jet S1 in first group of auxiliary jet starts Periodically and the spray regime of each auxiliary jet of third group (injection start timing), by being not based on the weft yarn flight information acquired Method set., can also be same as second group of auxiliary jet but for each auxiliary jet, based on the weft yarn flight acquired Its injection of information setting starts timing.

Additionally, this invention is not limited to above-described embodiment and variations, can suitably become in range without departing from the spirit More.

Claims

1. a kind of setting method of the weft yarn flight information of air injection loom is based in the air injection loom Weft yarn flight information determines the spray regime of each auxiliary jet, and according to the spray regime and target weft yarn comprising each auxiliary jet The wefting insertion condition for reaching timing executes wefting insertion, which is the information of the state of flight of the weft yarn about imagination, if The state of flight can be described in following chart area in the form of flight line by being set to, in the chart area, with A side in the rotation angle of loom main shaft and woven pieces direction in the distance away from wefting insertion starting position is horizontal axis and with another party is The longitudinal axis,

The setting method of the weft yarn flight information of the air injection loom is characterized in that,

In the weft yarn flight path of the in-position from the weft yarn on the wefting insertion starting position to woven pieces direction, it is being set in The first position that is determined for yarn side and after the second position instead determined for yarn side, to be set in the of the first position One bending point and the curved shape of the second bending point for being set in the second position are drawn and determined to be flown by the weft yarn The flight line that row information indicates, and second bending point is by reaching the loom that timing is found out based on the target weft yarn The rotation angle of main shaft and the second position are set.