CN103147212B - Automatic weft insertion rate control system for air-jet loom and regulation method of control system - Google Patents
Automatic weft insertion rate control system for air-jet loom and regulation method of control system Download PDFInfo
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- CN103147212B CN103147212B CN201310081253.1A CN201310081253A CN103147212B CN 103147212 B CN103147212 B CN 103147212B CN 201310081253 A CN201310081253 A CN 201310081253A CN 103147212 B CN103147212 B CN 103147212B
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Abstract
The invention discloses an automatic weft insertion rate control system for an air-jet loom and a regulation method of the control system. The system comprises a yarn speed detection module, a main jet, an air flow regulation device and a logical processing module, wherein the yarn speed detection module and the main jet are fixedly mounted by a first groove screw and a second groove screw; the yarn speed detection module is connected with the logical processing module by a circuit; the logical processing module is connected with a loom master control board by a circuit; the loom master control board is connected with the air flow regulation device by a circuit; and the air flow regulation device is connected with the main jet by a pipeline. During a production course, the air-jet loom provided with the system can automatically control the air flow regulation device after different yarns are replaced, so that the yarns can reach the set weft insertion rate, the yarns can accurately pass through a fell within specified shedding time, a stoppage rate is reduced, the weaving efficiency is improved, and the weaving quality is improved.
Description
Wu Zhenyu, Pan Zhen, Ying Zhiping, Hu Xudong
Technical field
The present invention relates to a kind of jet loom for drawing weft yarn Auto speed-control system and control method thereof.
Background technology
Air-jet loom is a kind of loom that uses air-flow to carry out yarn operation traction.The high-speed jet forming by nozzle, can draw yarn and complete fast desired acceleration, deceleration campaign in weaving process.In long-term evolution, in order to complete better weaving process, there is function segmentation in air-jet loom successively, as occurred accelerating jet and maintained nozzle, acceleration channels being made up of Profiled Reed etc.
Air-jet loom is a kind of production equipment of complexity, many motion assemblies are finally in order to ensure correctly interweaving of broadwise and warp yarn, wherein warp yarn is under the effect of shedding mechanism (typical case is as dobby, full-jacquard mechanism), within the specific time, will form certain opening space so that parallel passes through, owing to being contact traction between shedding mechanism and warp, therefore once setting, the space-time mapping relations of the open area in loom running will can not produce significant change.Therefore whether weft yams can maintain the speed that requires, and accurately passes through betwixt according to generation and the disappearance feature of open space, has become the primary controlling unit of weaving process.Along with improving constantly that market requires weave effect and production efficiency, loom had proposed requirements at the higher level to yarn speed control more in the past.Main burner is as making yarn produce the critical component of direct acceleration, and the research that has been subject to height is paid close attention to.But, tradition main nozzle of jet loom can only regulate air velocity, and finds by research, and yarn flying speed is not only subject to the direct impact of air velocity, yarn self character has considerable influence equally, such as yarn diameter, filoplume degree, looping tightness degree.Therefore in a lot of production occasions, under same air feed condition, because replacing is weaved yarn variety or the larger conversion of yarn flying speed has appearred in yarn yarn batches, thereby cause the variation of yarn flight time, and then have influence on weave effect.
Summary of the invention
A kind of jet loom for drawing weft yarn Auto speed-control system and control method thereof are the object of the present invention is to provide, air-jet loom of the present invention is installed in process of production, can be after changing different yarns, automatic control airflow adjusting device, make yarn reach setting filling insertion rate, thereby ensure that yarn can accurately pass through fell in the opening time of regulation, reduce the platform rate of stopping, improve weaving efficiency and improvement and weave quality.
In order to achieve the above object, technical scheme of the present invention is:
A kind of jet loom for drawing weft yarn Auto speed-control system, comprises yarn speed checkout gear, main burner, air flow regulator and logic processing module; Wherein said yarn speed checkout gear is by the first slotted screw and the second slotted screw and main burner fixed installation; Described yarn speed checkout gear is connected with logic processing module by circuit; Described logic processing module is connected with loom master control borad by circuit; Described loom master control borad is connected with air flow regulator by circuit; Described air flow regulator is connected with main burner by pipeline.
Described yarn speed checkout gear comprises sealed tube; Infrared transmitting tube, photoelectric receiving tube are installed in described sealed tube.
Described logic processing module comprises computer processor module, drive circuit module and signal processing module; Wherein said computer processor module is connected with drive circuit module by circuit; Described drive circuit module is connected with infrared transmitting tube by circuit; Described photoelectric receiving tube is connected with signal processing module by circuit; Described signal processing module is connected with computer processor module by AD sample circuit; Described signal processing module is also connected with loom master control borad by circuit; The earth terminal of described logic processing module is connected with the earth terminal of yarn speed detection module by circuit.
Described signal processing module comprises amplifying circuit and bandwidth-limited circuit.
Air inlet gas circuit is installed on described main burner.
A kind of control method of jet loom for drawing weft yarn Auto speed-control system, comprise the steps: 1) yarn is dyed even apart from interval with rapid-curing cutback black ink, and distance is spaced apart the black and white yarn of S, and spacing distance S is inputed to logic processing module as parameters; 2) start instrument; 3) the black and white yarn on weft yarn cylinder penetrates yarn speed checkout gear through weft accumulator, and passes through main burner; Yarn speed checkout gear transmitting infrared ray also receives the infrared signal reflecting by black and white yarn, and the infrared signal receiving is sent to logic processing module, be T the interval time that logic processing module can record the adjacent peak value of the infrared signal receiving and valley, distance interval S/ T interval time of described step 1) can be calculated to the average speed of yarn flight; 4) if the average speed of the yarn that step 3) calculates flight is less than default speed, logic processing module, by data feedback to loom master control borad, increases yarn speed until reach setting speed thereby loom master control borad enters the air-flow of main burner by controlling air flow regulator increase; If the average speed of the yarn that step 3) calculates flight is greater than default speed, logic processing module, by data feedback to loom master control borad, reduces yarn speed until reach setting speed thereby loom master control borad enters the air-flow of main burner by controlling air flow regulator minimizing.
The invention has the beneficial effects as follows: a kind of jet loom for drawing weft yarn Auto speed-control system of the present invention and control method thereof, adopt a kind of novel main burner device, the basic distinction of main burner device is in the past, a kind of jet loom for drawing weft yarn Auto speed-control system of the present invention comprises speed detection module based on photoelectric effect yarn, can carry out the gas flow-regulating module that in main burner, air velocity changes and carry out the logic processing module of logic judging function.By the cooperation between these modules, the yarn of realizing different physical characteristics can fly according to setting speed in design main burner.Air-jet loom of the present invention is installed in process of production, can be after changing different yarns, automatic control airflow adjusting device, make yarn reach setting filling insertion rate, thereby ensure in the opening time of regulation, yarn can accurately pass through fell, reduces the platform rate of stopping, and improves weaving efficiency and improvement and weaves quality.
Brief description of the drawings
Fig. 1 is the structured flowchart of jet loom for drawing weft yarn Auto speed-control system of the present invention;
Fig. 2 is the structural representation that jet loom for drawing weft yarn Auto speed-control system of the present invention removes air flow regulator and logic processing module;
Fig. 3 is jet loom for drawing weft yarn Auto speed-control system optical detection principle block diagram of the present invention.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of jet loom for drawing weft yarn Auto speed-control system of the present embodiment, comprises yarn speed checkout gear 1, main burner 2, air flow regulator 3 and logic processing module 4; Wherein said yarn speed checkout gear 1 fixedly mounts with main burner 2 by the first slotted screw 12 and the second slotted screw 13; On described main burner 2, air inlet gas circuit 14 is installed; Described yarn speed checkout gear 1 comprises sealed tube 9; Infrared transmitting tube 10, photoelectric receiving tube 11 are installed in described sealed tube 9; Described logic processing module 4 comprises computer processor module 7, drive circuit module 6 and signal processing module 8; Wherein said computer processor module 7 is connected with drive circuit module 6 by circuit; Described drive circuit module 6 is connected with infrared transmitting tube 10 by circuit; Described photoelectric receiving tube 11 is connected with signal processing module 8 by circuit; Described signal processing module 8 is connected with computer processor module 7 by AD sample circuit 18; The earth terminal of described logic processing module 4 is connected with the earth terminal of yarn speed detection module 1 by circuit; Signal processing module 8 in described logic processing module 4 is connected with loom master control borad 5 by circuit; Described loom master control borad 5 is connected with air flow regulator 3 by pipeline; Described air flow regulator 3 is connected with the air inlet gas circuit 14 on main burner 2 by pipeline.
The control method of the present embodiment, comprises the steps: 1) with rapid-curing cutback black ink, yarn is dyed evenly apart from interval, and distance is spaced apart the black and white yarn 16 of S, and inputs to logic processing module 4 using spacing distance S as parameters; 2) start instrument; 3) the black and white yarn on weft yarn cylinder 15 penetrates yarn speed checkout gear 1 through weft accumulator 17, and passes through main burner 2; Yarn speed checkout gear 1 is launched infrared ray and is received the infrared signal reflecting by black and white yarn 16, and the infrared signal receiving is sent to logic processing module 4, from yarn to reflection of light characteristic, black and white yarn has different uptakes to the infrared signal of Same Wavelength, dye and have the black and white of rapid-curing cutback black ink yarn 16 strong to the absorbability of light, the light being reflected back is few, and its signal voltage variable quantity detects principle as shown in Figure 3.Producing pulse signal by computer processor 7 amplifies to drive infrared transmitting tube 10 to launch infrared ray by drive circuit 6 to electric current, and the photoelectric receiving tube 11 that adopts individual features receives the infrared signal of returning by black and white yarn 16 back reflections, can obtain sinusoidal signal.For the signal demand signal processing module 8 obtaining, it is carried out to processing to a certain degree, signal processing module 8 comprises amplifying circuit, bandwidth-limited circuit; Amplifying circuit first carries out amplification to a certain degree to signal, then by the signal after amplifying by bandwidth-limited circuit, needed signal and noise separation can be opened and obtained purer signal; Signal after treatment is sampled by A/D sample circuit 18 and is fed back in microprocessor 7, according to the variation of voltage signal, microprocessor 7 records the adjacent peak value of infrared signal that receives and be T the interval time of valley, distance interval S/ T interval time of described step 1) can be calculated to the average speed of yarn flight; 4) if the average speed of the yarn that step 3) calculates flight is less than default speed, logic processing module 4, by data feedback to loom master control borad 5, increases yarn speed until reach setting speed thereby loom master control borad 5 enters the air-flow of main burner 2 by controlling air flow regulator 3 increases; If the average speed of the yarn that step 3) calculates flight is greater than default speed, logic processing module 4, by data feedback to loom master control borad 5, reduces yarn speed until reach setting speed thereby loom master control borad 5 enters the air-flow of main burner 2 by controlling air flow regulator 3 minimizings.
A kind of jet loom for drawing weft yarn Auto speed-control system and the control method thereof of the present embodiment, adopt a kind of novel main burner device, the basic distinction of main burner device is in the past, a kind of jet loom for drawing weft yarn Auto speed-control system of the present embodiment comprises speed detection module based on photoelectric effect yarn, can carry out the gas flow-regulating module that in main burner, air velocity changes and carry out the logic processing module of logic judging function.By the cooperation between these modules, the yarn of realizing different physical characteristics can fly according to setting speed in design main burner.The air-jet loom of the present embodiment is installed in process of production, can be after changing different yarns, automatic control airflow adjusting device, make yarn reach setting filling insertion rate, thereby ensure in the opening time of regulation, yarn can accurately pass through fell, reduces the platform rate of stopping, and improves weaving efficiency and improvement and weaves quality.
Claims (4)
1. a jet loom for drawing weft yarn Auto speed-control system, is characterized in that comprising yarn speed checkout gear (1), main burner (2), air flow regulator (3) and logic processing module (4); Wherein said yarn speed checkout gear (1) is by the first slotted screw (12) and the second slotted screw (13) and main burner (2) fixed installation; Described yarn speed checkout gear (1) is connected with logic processing module (4) by circuit; Described logic processing module (4) is connected with loom master control borad (5) by circuit; Described loom master control borad (5) is connected with air flow regulator (3) by circuit; Described air flow regulator (3) is connected with main burner (2) by pipeline; Described yarn speed checkout gear (1) comprises sealed tube (9); Infrared transmitting tube (10), photoelectric receiving tube (11) are installed in described sealed tube (9); Described logic processing module (4) comprises computer processor module (7), drive circuit module (6) and signal processing module (8); Wherein said computer processor module (7) is connected with drive circuit module (6) by circuit; Described drive circuit module (6) is connected with infrared transmitting tube (10) by circuit; Described photoelectric receiving tube (11) is connected with signal processing module (8) by circuit; Described signal processing module (8) is connected with computer processor module (7) by AD sample circuit (18); Described signal processing module (8) is also connected with loom master control borad (5) by circuit; The earth terminal of described logic processing module (4) is connected with the earth terminal of yarn speed checkout gear (1) by circuit.
2. a kind of jet loom for drawing weft yarn Auto speed-control system of stating as claim 1, is characterized in that described signal processing module (8) comprises amplifying circuit and bandwidth-limited circuit.
3. a kind of jet loom for drawing weft yarn Auto speed-control system as claimed in claim 1, is characterized in that, on described main burner (2), air inlet gas circuit (14) is installed.
4. the control method of a jet loom for drawing weft yarn Auto speed-control system as claimed in claim 1, it is characterized in that comprising the steps: 1) yarn is dyed even apart from interval with rapid-curing cutback black ink, and distance is spaced apart the black and white yarn (16) of S, and inputs to logic processing module (4) using spacing distance S as parameters; 2) start instrument; 3) the black and white yarn on weft yarn cylinder (15) penetrates yarn speed checkout gear (1) through weft accumulator (17), and passes through main burner (2); Yarn speed checkout gear (1) transmitting infrared ray also receives the infrared signal reflecting by black and white yarn (16), and the infrared signal receiving is sent to logic processing module (4), be T the interval time that logic processing module (4) can record the adjacent peak value of the infrared signal receiving and valley, spacing distance S/ T interval time of described step 1) can be calculated to the average speed of yarn flight; 4) if the average speed of the yarn that step 3) calculates flight is less than default speed, logic processing module (4) by data feedback to loom master control borad (5), loom master control borad (5) by control air flow regulator (3) increase enter main burner (2) thus air-flow increase yarn speed until reach setting speed; If the average speed of the yarn that step 3) calculates flight is greater than default speed, logic processing module (4) by data feedback to loom master control borad (5), loom master control borad (5) by control air flow regulator (3) reduce enter main burner (2) thus air-flow reduce yarn speed until reach setting speed.
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| CN103290606B (en) * | 2013-06-18 | 2014-08-06 | 江苏万工科技集团有限公司 | Device for measuring relation curve between speed and traction force of weft |
| CN106066344B (en) * | 2016-06-17 | 2019-03-19 | 山东易码智能科技股份有限公司 | A kind of digital Weft search unit and its method of weaving |
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| JP2838205B2 (en) * | 1987-09-29 | 1998-12-16 | 津田駒工業株式会社 | Weft insertion control device for air jet loom |
| JP3056904B2 (en) * | 1992-05-21 | 2000-06-26 | 株式会社豊田中央研究所 | Weft speed measuring device and weft insertion condition monitoring device in jet loom |
| DE19900581B4 (en) * | 1999-01-09 | 2005-12-22 | Technische Universität Dresden | Method and circuit arrangement for non-contact motion measurement on a thread |
| NL1014537C2 (en) * | 2000-03-02 | 2001-09-04 | Te Strake Bv | Method for controlling a weaving device, as well as a weaving device for carrying out this method. |
| EP1953282B1 (en) * | 2007-02-02 | 2010-12-22 | ITEMA (Switzerland) Ltd. | Method and device for inserting weft thread into a loom |
| EP2050847B1 (en) * | 2007-10-19 | 2012-08-29 | Siemens Aktiengesellschaft | Method for transporting the weft thread through the shed of a loom |
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Effective date of registration: 20220606 Address after: 321100 Lanxi light industry special zone, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG LIMA YUNSHAN TEXTILE Co.,Ltd. Address before: 310018 Zhejiang University of Technology, Xiasha Higher Education Park, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG SCI-TECH University |
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