CN101519822B - Picking control apparatus of jet loom - Google Patents
Picking control apparatus of jet loom Download PDFInfo
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- CN101519822B CN101519822B CN2009101179535A CN200910117953A CN101519822B CN 101519822 B CN101519822 B CN 101519822B CN 2009101179535 A CN2009101179535 A CN 2009101179535A CN 200910117953 A CN200910117953 A CN 200910117953A CN 101519822 B CN101519822 B CN 101519822B
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Abstract
The present invention provides a picking control apparatus of jet loom, comprising a weft yarn path changing apparatus equipped with an actuator with an encoder, which can control the action position by driving the path changing body for changing the path of weft yarn; and a control portion for controlling the action position of the actuator. The control portion has the function of switching the control mode of the actuator between control execution mode and control non-execution mode. In the control execution mode, the position of the path changing body is changed in order to change the path of weft yarn, thus controlling the action position of the actuator, and the position information is obtained from the encoder. In the control non-execution mode, the position information is not obtained from the encoder. The control portion has a switch operation portion for executing the switch of control mode between the control execution mode and control non-execution mode.
Description
Technical field
The present invention relates to the picking control apparatus in a kind of jet loom.
Background technology
Weft yarn in the jet loom is to finish when weft yarn length measuring weft storing device is pulled out weft yarn when walking and finishing, but thereby weft yarn pull out weft yarn when finishing and pull out interception and make the walking of weft yarn of walking at a high speed stop to make weft tension to rise rapidly.Rapid tension force rises and causes the disconnection of weft yarn sometimes.When being to use, come thereby weft yarn effect braking is suppressed the weft brake of the rapid rising of tension force by the path that changes weft yarn in the approaching end of picking.
This weft brake is for example open in Japanese kokai publication hei 6-184867 communique.In the disclosed device of Japanese kokai publication hei 6-184867 communique, use impulse motor to drive to be used to the arm that weft yarn is moved.The braking of weft yarn is passed through the bending resistance generation of weft yarn when the approaching end of picking, described weft yarn is configured in the brachiocylloosis of the position of touching with weft yarn.
Impulse motor is connected with the control circuit signal, and impulse motor is provided with encoder.The control circuit basis is carried out FEEDBACK CONTROL from the position of rotation of the signal paired pulses motor of encoder.
Using under the situation of multiple weft yarn, use a plurality of Weft insertion nozzles and with the weft brake of its equivalent.For example use under the situation of fabric of 4 kinds of weft yarns in weaving, uses 4 Weft insertion nozzles and 4 weft brakes, but under the situation of the fabric of weaving 3 kinds of weft yarns of use or 2 kinds of weft yarns, 1 or 2 in 4 weft yarn nozzles need not.Under these circumstances, 1 or 2 in 4 weft brakes need not.
The armature spindle of the impulse motor of weft brake is utilized oil that the bearing fitting is lubricated by bearing fitting (bearing) supporting.But the bearing fitting (bearing) of the impulse motor of long-time no weft brake might be because the vibration in loom when weaving and the part sustains damage.For fear of such damage, wish in advance long-time no weft brake to be unloaded from loom.
Yet, in the control circuit of existing weft brake, can only carry out the given time of picking to the braking control of weft yarn effect braking and at the impulse motor that makes this weft brake under the obsolete situation in both allocation standbies so that the switching between the at will moving Opportunity awaiting control for linear of arm.Therefore, be subjected to being not used in weft yarn braking under the situation that the predetermined weft brake of Opportunity awaiting control for linear is removed, the signal of the encoder that is provided with on the impulse motor from this weft brake can not enter control circuit.
Usually, when signal from encoder occurring and do not enter the state of control circuit, thereby control circuit is thought to detect and has been taken place unusually loom to be shut down.That is, when the impulse motor that is subjected to Opportunity awaiting control for linear being not used in weft yarn braking unloaded, even the running of beginning loom, the running of loom also can stop immediately.Therefore in the prior art, even long-time obsolete weft brake can not unload.
Summary of the invention
Even the object of the present invention is to provide under a kind of situation that obsolete weft path change device is unloaded, bring the picking control apparatus of obstruction also can not for the running of loom.
In order to achieve the above object, in a scheme of the present invention, picking control apparatus in a kind of jet loom is provided, comprises: the weft path change device, possessing can be with the actuator of the band encoder of the mode control action position that drives the route diversion body that the path of weft yarn is changed; Control part with the operating position of controlling above-mentioned actuator.Above-mentioned control part has and can and control the function of switching between the non-execution pattern the control model of above-mentioned actuator in the control execution pattern.Thereby the mode that above-mentioned control execution pattern changes the path of above-mentioned weft yarn with the position that changes above-mentioned route diversion body is controlled the operating position of above-mentioned actuator, and obtains positional information from above-mentioned encoder.The non-execution pattern of above-mentioned control does not obtain positional information from above-mentioned encoder.Above-mentioned control part possesses the handover operation portion that is used for switching the operation of above-mentioned control model between above-mentioned control execution pattern and the non-execution pattern of above-mentioned control.
Description of drawings
Figure 1A is partly cut-away's vertical view of the picking control apparatus of an embodiment of the invention.
Figure 1B is the control block diagram of the device among Figure 1A.
Fig. 2 is the partial cross sectional side elevation view of the device among Figure 1A.
Fig. 3 A is the rearview of the device among Figure 1A.
Fig. 3 B is the control block diagram of the device among Figure 1A.
The specific embodiment
A following embodiment that the present invention is embodied as the jet loom that can use 4 kinds of weft yarn weavings according to Figure 1A～Fig. 3 B explanation.
Shown in Figure 1A, weft yarn Ya reels by the rotation of the yarn coiling pipe 111 of the weft yarn length measuring weft storing device 11 of winding method and stores on yarn coiling face 112.Coiling stores the weft yarn Ya on yarn coiling face 112, end under the state that effect discharges at the card from the card shotpin 121 that driven by o 12, the jet action (fluid jet effect) of the pressure air by series nozzle 13A and picking are drawn out with the jet action (fluid jet effect) of the pressure air of main burner 14A.Picking main burner 14A swings integratedly with the not shown reed of playing the reed motion.Series nozzle 13A uses nozzle a kind of with main burner 14A to the picking of the weft yarn Ya application of force towards picking.Card shotpin 121 breaks away from from yarn coiling face 112 the excitation instruction of o 12 according to control computer Co.
Near the weft yarn that is provided with the reflective photoelectric sensor type yarn coiling face 112 is separated the detector 10 that relaxes.Weft yarn is separated detector 10 detections of relaxing and is pulled out and separate easypro weft yarn Ya from yarn coiling face 112, and this detection signal is sent to control computer Co.When the easypro number of times of separating of weft yarn Ya reached set number of times, control computer Co sent the instruction of o 12 demagnetizations, and card shotpin 121 engages with yarn coiling face 112.When card shotpin 121 engaged with yarn coiling face 112, pulling out of weft yarn Ya was prevented from.The weft yarn Ya that pulls out from yarn coiling face 112 by picking with the aerojet effect of main burner 14A by picking in the opening of not shown warp thread.
As shown in Figure 2, series nozzle 13A embeds and is combined in the nozzle body 15 of square tube shape.Series nozzle 13A possesses the interior screw thread guide 16 of tube that screw thread is combined in nozzle body 15, is connected with air supply pipe 17 on the side of nozzle body 15.The never illustrated pressure air supply source of above-mentioned pressure air is supplied to series nozzle (tandem nozzle) 13A via air supply pipe 17.
Shown in Figure 1A, be fixed with the web 18 of horn shape at the back side of nozzle body 15.Web 18 is made of with the flat secondary portion 182 that links to each other squarely with respect to base portion 181 the flat base portion 181 at the back side that is combined in nozzle body 15.On base portion 181, be installed with stepper motor Ma.Stepper motor Ma possesses rotary encoder 19.The motor drive shaft 191 of stepper motor Ma connects base portions 181 ground and gives prominence to, and is installed with bar-shaped route diversion body 20 at the protuberance of motor drive shaft 191.Stepper motor Ma is can be with the actuator of the band encoder of the mode control action position that drives route diversion body 20, the weft brake 21A that stepper motor Ma and route diversion body 20 constitute as the weft path change device.
On the side of nozzle body 15, be installed with fulcrum 25.Fulcrum 25 is bearing on the pillar 27 via linking accessory 26.Pillar 27 via not shown bearing bracket on the side frame of loom.An end that links accessory 26 is fixed on the fulcrum 25 by the fastening of screw 28, and the other end that links accessory 26 is fixed on the pillar 27 by the fastening of screw 29.If loosening screw 28 is fastening, just can unload nozzle body 15 and stepper motor Ma from pillar 27.
Weft yarn Yb shown in Figure 1A arrives in the opening of warp thread with the aerojet effect picking of main burner 14B by series nozzle 13B and picking.Weft yarn Yc shown in Figure 2 arrives in the opening of warp thread with the aerojet effect picking of main burner 14C by series nozzle 13C and picking.Weft yarn Yd shown in Fig. 3 A arrives in the opening of warp thread with the aerojet effect picking of main burner (omitting diagram) by series nozzle 13D and picking. Weft brake 21B, 21C, 21D as the weft path change device are installed on each series nozzle 13B, 13C, 13D.Weft brake 21B, 21C, 21D are the formations identical with weft brake 21A, and just the stepper motor of weft brake 21B, 21C, 21D is designated as stepper motor Mb, Mc, Md.Other identical formation portions use prosign and omit its detailed description.
Shown in Figure 1B, stepper motor Ma, Mb, Mc, Md are controlled the control of computer Co.Control computer Co detects information, the action of control step motor Ma, Mb, Mc, Md according to the loom anglec of rotation that the rotary encoder 30 from the anglec of rotation that detects loom obtains.As shown in Figure 3A, before the picking of weft yarn Ya, Yb, Yc, Yd was about to begin, route diversion body 20 was positioned at the position of readiness shown in the solid line, and weft yarn Ya, Yb, Yc, Yd do not touch with route diversion body 20.
Under the situation of weft yarn Ya picking, when reaching the set loom anglec of rotation, control computer Co sends the excitation instruction to the o 12 in the weft yarn length measuring weft storing device 11, and card shotpin 121 breaks away from from yarn coiling face 112.In addition, only acting on d/d weft yarn Ya from the card that blocks shotpin 121 penetrates with main burner 14A with the aerojet (fluid) of main burner 14A and from picking by series nozzle 13A and picking.When weft yarn Ya picking, between weft yarn length measuring weft storing device 11 and guide ring 24, produce the air ring of weft yarn Ya, but because the existence of plectane 23 makes this air ring can not be hooked on the stepper motor Ma.
When the approaching end of picking of weft yarn Ya, control computer Co is so that the route diversion body 20 of stepper motor Ma rotates the mode that disposes, the action of control step motor Ma from the position of readiness shown in Fig. 3 A solid line to the weft yarn application position shown in the chain-dotted line.Route diversion body 20 at stepper motor Ma is positioned under the state of weft yarn application position, and shown in the chain-dotted line among Fig. 2, weft yarn Ya is with when route diversion body 20 contacts, by sweeping the 2nd yarn path between guide ring 24 and screw thread guide 16.
When the o 12 in the weft yarn length measuring weft storing device 11 by demagnetization and card shotpin 121 when engage with yarn coiling face 112, pulling out of weft yarn Ya being separated easypro being prevented from, the picking end.
Under the state of the 1st yarn path picking shown in solid line among Fig. 2, the path of the weft yarn Ya between guide ring 24 and the screw thread guide 16 is the rectilinear form that does not touch with route diversion body 20 at weft yarn Ya.Therefore, little along the suffered picking resistance of the weft yarn Ya of the 1st yarn path picking.Because in the approaching end of picking, bending when weft yarn Ya shifts to the 2nd yarn path, so on weft yarn Ya, apply bending resistance.Because the caused bending resistance of curved shape in the 2nd yarn path applies braking action to the weft yarn Ya in the picking process.When the approaching end of picking, shift the braking action that produce from the 1st yarn path to the 2nd yarn path by weft yarn Ya the picking speed of weft yarn Ya is reduced, suppressed the rapid rising of the tension force of weft yarn Ya when picking finishes.Its result is, avoided being risen and the fracture of the weft yarn Ya that causes by rapid tension force.
In other the picking of weft yarn Yb, Yc, Yd, also weft yarn Yb, Yc, Yd are carried out same braking.
Shown in Figure 1B, signal is connected with input unit 31 and display unit 32 on control computer Co.In addition, signal is connected with the rotary encoder 19 of stepper motor Ma, Mb, Mc, Md on control computer Co.
On the picture of the display unit 32 of Figure 1B, show thereby input unit 31 is carried out the input operation information that input is set to control computer Co.Symbols displayed on the picture of display unit 32 " Ma ", " Mb ", " Mc ", " Md " expression stepper motor Ma, Mb, Mc, Md.Below symbols displayed " ON " expression of symbol on the picture of display unit 32 " Ma ", " Mb ", " Mc " is set at the situation of control execution pattern, promptly controls computer Co and obtains the operating position (position of rotation) of positional information with control step motor Ma, Mb, Mc from the rotary encoder 19 of stepper motor Ma, Mb, Mc.Below symbols displayed " nothing " expression of the symbol on the picture of display unit 32 " Md " is set at the situation of the non-execution pattern of control, promptly controls computer Co and does not obtain positional information from the rotary encoder 19 of stepper motor Md.
In addition, thus Figure 1B represents to comprise the weft brake 21D of stepper motor Md unloads the control that is not controlled computer Co from pillar 27 state.Be set at the operation of non-execution pattern of control and displaying symbol " nothings " and unload weft brake 21D This move from pillar 27 and carry out accordingly with respect to the stepper motor Md of weft brake 21D.Be set at stepper motor Md under the situation of the non-execution pattern of control with respect to weft brake 21D, control computer Co does not obtain positional information from the rotary encoder 19 of stepper motor Md, and does not carry out the control of the operating position (position of rotation) of stepper motor Md.
The below symbols displayed " OFF " of the symbol " Md " on the picture of the display unit 32 shown in Fig. 3 B thus expression is carried out the input operation information that input is set to control computer Co to input unit 31.Symbol " OFF " expression the 2nd control execution pattern, promptly control computer Co and obtain the operating position of positional information with control step motor Md from the rotary encoder 19 of stepper motor Md, thereby make that in the operation process of loom, stepper motor Md remains on position of readiness with route diversion body 20 all the time.
The weft brake 21D that Fig. 3 B represents to comprise stepper motor Md is installed on the pillar 27 but the route diversion body 20 of weft brake 21D remains on the state of position of readiness.With respect to the stepper motor Md of weft brake 21D be set at the 2nd control execution pattern and displaying symbol " OFF " though but operation with do not use weft yarn Yd weft brake 21D to be installed on the pillar 27 to carry out accordingly.Be set at stepper motor Md under the situation of the 2nd control execution pattern with respect to weft brake 21D, control computer Co obtains the operating position of positional information with control step motor Md from the rotary encoder 19 of stepper motor Md, thereby route diversion body 20 is remained on position of readiness.
Present embodiment can obtain following advantage.
(1) under the situation that the weft brake 21D of the stepper motor Md that will possess band rotary encoder 19 unloads, if input device 31 and control model switched be set at the non-execution pattern of control is in advance then controlled computer Co and is not carried out the control that is used for obtaining from the rotary encoder 19 of the stepper motor Md of the weft brake 21D that unloads positional information.Therefore, control computer Co can not detect relevant with stepper motor Md unusually, can loom be stopped because of having unloaded weft brake 21D.
(2) thus can directly make route diversion body 20 rotate rotary-type stepper motor Ma, the Mb that changes positions, the position that Mc, Md can control route diversion body 20 accurately.Rotary-type stepper motor Ma, Mb, Mc, Md are preferred as the equipment that drives route diversion body 20.
(3) exist because only the short time does not use and under the situation of the weft brake that do not unload, the route diversion body 20 of this weft brake might at will move.If route diversion body 20 is at will moving, then route diversion body 20 and unfavorable conditions such as weft yarn contacts might take place.Thereby if input unit 31 operated control model switched is set at the 2nd control execution pattern, then route diversion body 20 remains at position of readiness in the operation process of loom, and route diversion body 20 can at will not move.
In the present invention, following embodiment also is fine.
Can use servo motor as the actuator that can carry out the band encoder of Position Control.
Can use rotary solenoid as the actuator that can carry out the band encoder of Position Control.
Control part only can have can and control the function of switching the setting control model between the non-execution pattern in the control execution pattern.
Weft brake can be provided with away from series nozzle ground.Weft brake for example can be provided between series nozzle and the weft yarn length measuring weft storing device or series nozzle and picking with between the main burner.
The present invention also can be applied to weft yarn can be retracted and the front end of weft yarn is introduced picking with the weft yarn retracting device in the main burner.
The present invention also can be applied to support the rotating shaft of fixed installation route diversion body revolvably and use linear actuators to make the weft path change device of above-mentioned rotating shaft rotation via the bearing fitting.In this case, need make the linear reciprocating motion of linear actuators be converted to the switching mechanism that rotatablely moves of rotating shaft.
The present invention also can be applied to not use the jet loom of series nozzle.
Claims (4)
1. the picking control apparatus in the jet loom comprises: the weft path change device, possess the actuator of band encoder, and described actuator can be to drive the mode control action position of the route diversion body that the path of weft yarn is changed; Control part with the operating position of controlling above-mentioned actuator is characterized in that,
Above-mentioned control part has following function: can and control the control model of switching between the non-execution pattern above-mentioned actuator in the control execution pattern, thereby the mode that described control execution pattern changes the path of above-mentioned weft yarn with the position that changes above-mentioned route diversion body is controlled the operating position of above-mentioned actuator, and obtains positional information from above-mentioned encoder; The non-execution pattern of described control does not obtain positional information from above-mentioned encoder,
Above-mentioned control part possesses the handover operation portion that is used for switching the operation of above-mentioned control model between above-mentioned control execution pattern and the non-execution pattern of above-mentioned control.
2. picking control apparatus according to claim 1 is characterized in that, also possesses a plurality of picking nozzles,
The group number of above-mentioned route diversion body and above-mentioned actuator is identical with the quantity of nozzle with above-mentioned picking, and above-mentioned control part has the function that can switch above-mentioned control model to a plurality of above-mentioned actuators respectively between above-mentioned control execution pattern and the non-execution pattern of above-mentioned control.
3. picking control apparatus according to claim 1 and 2, it is characterized in that, above-mentioned control part also has the function that above-mentioned control model can be switched to the 2nd control execution pattern, and described the 2nd control execution pattern is so that above-mentioned route diversion body remains at the operating position that the mode of position of readiness is controlled above-mentioned actuator in the operation process of loom.
4. picking control apparatus according to claim 1 and 2 is characterized in that, above-mentioned handover operation portion only can and control in the control execution pattern switches above-mentioned control model between the non-execution pattern.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-051131 | 2008-02-29 | ||
| JP2008051131 | 2008-02-29 | ||
| JP2008051131A JP5555409B2 (en) | 2008-02-29 | 2008-02-29 | Weft insertion control device in jet loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101519822A CN101519822A (en) | 2009-09-02 |
| CN101519822B true CN101519822B (en) | 2011-06-15 |
Family
ID=41080610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101179535A Expired - Fee Related CN101519822B (en) | 2008-02-29 | 2009-02-27 | Picking control apparatus of jet loom |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5555409B2 (en) |
| CN (1) | CN101519822B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507307A (en) * | 1967-09-19 | 1970-04-21 | Jaime Picanol | Weft thread dividing device for looms |
| GB1286058A (en) * | 1970-02-13 | 1972-08-16 | Rueti Ag Maschf | Improvements in or relating to looms |
| EP1314805A2 (en) * | 2001-10-19 | 2003-05-28 | Vyzkumny Ustav Textilnich Stroju Liberec a.s. | A method of weft braking when picking the weft through a shed of a pneumatic weaving machine, device for carrying out the method and a braking jet |
| CN1446276A (en) * | 2000-08-02 | 2003-10-01 | 艾罗帕股份有限公司 | Weft yarn deflection brake and method for controlling weft insertion into weaving machine |
| CN2592672Y (en) * | 2002-11-08 | 2003-12-17 | 李军 | Weft selecting actuator for rapier loom |
| CN1570238A (en) * | 2003-07-11 | 2005-01-26 | 蔡登万 | Webbing loom filling control mechanism |
| CN1729330A (en) * | 2002-12-20 | 2006-02-01 | 皮克诺尔公司 | Device and method for stretching |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3153493B2 (en) * | 1997-04-22 | 2001-04-09 | 津田駒工業株式会社 | Weft tensioning device for fluid jet loom |
| JP3840752B2 (en) * | 1997-07-29 | 2006-11-01 | 株式会社豊田自動織機 | Loom opening device |
-
2008
- 2008-02-29 JP JP2008051131A patent/JP5555409B2/en not_active Expired - Fee Related
-
2009
- 2009-02-27 CN CN2009101179535A patent/CN101519822B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507307A (en) * | 1967-09-19 | 1970-04-21 | Jaime Picanol | Weft thread dividing device for looms |
| GB1286058A (en) * | 1970-02-13 | 1972-08-16 | Rueti Ag Maschf | Improvements in or relating to looms |
| CN1446276A (en) * | 2000-08-02 | 2003-10-01 | 艾罗帕股份有限公司 | Weft yarn deflection brake and method for controlling weft insertion into weaving machine |
| EP1314805A2 (en) * | 2001-10-19 | 2003-05-28 | Vyzkumny Ustav Textilnich Stroju Liberec a.s. | A method of weft braking when picking the weft through a shed of a pneumatic weaving machine, device for carrying out the method and a braking jet |
| CN2592672Y (en) * | 2002-11-08 | 2003-12-17 | 李军 | Weft selecting actuator for rapier loom |
| CN1729330A (en) * | 2002-12-20 | 2006-02-01 | 皮克诺尔公司 | Device and method for stretching |
| CN1570238A (en) * | 2003-07-11 | 2005-01-26 | 蔡登万 | Webbing loom filling control mechanism |
Non-Patent Citations (2)
| Title |
|---|
| GB 1286058 A, |
| US 3507307 A, |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009209462A (en) | 2009-09-17 |
| CN101519822A (en) | 2009-09-02 |
| JP5555409B2 (en) | 2014-07-23 |
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