CN1240844A - Weft yarn controller - Google Patents
Weft yarn controller Download PDFInfo
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- CN1240844A CN1240844A CN 98115439 CN98115439A CN1240844A CN 1240844 A CN1240844 A CN 1240844A CN 98115439 CN98115439 CN 98115439 CN 98115439 A CN98115439 A CN 98115439A CN 1240844 A CN1240844 A CN 1240844A
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- weft
- yarn
- search unit
- weft yarn
- pick head
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Abstract
A weft yarn controller is composed of weft yarn storage, single-chip microprocessor, frequency-varying circuit and weft yarn detector set up on the surface of yarn-storing drum to provide the signals presenting whether weft yarn exists or not to said single-chip microprocessor. The state of motor can be controlled by single-chip microprocessor via frequency-varying circuit. In the casing of weft yarn detector, there are two magnets with same polarity, which can sense the existance of weft yarn by their mutual expelling force and send the result to said single-chip microprocessor via photoelectric device. Its advantages are high quality of woven fabrics, high reliability of photoelectric device and simple structure.
Description
The weft yarn that the present invention relates in a kind of loom is fed to control device.
Along with the continuous development of science and technology, the transformation paces of textile industry loom are constantly accelerated, and are more and more higher to the requirement of the loom speed of service.Weft accumulator is the vitals in the current new loom, weft accumulator feed to the height of weft yarn quality will directly influence the quality of institute's knitted fabric.The control of existing weft accumulator storage yarn mainly is to send signal by the detecting element generation deflection on being located in the yarn drum surface, by storing amount of yarn on the reed induction switch device control yarn-storing drum.The mode of this open and close exists described reed and damages weft yarn easily, influences fabric quality, and the weft yarn feed speed is restricted etc. not enough.
The purpose of this invention is to provide a kind of Weft controller, it offers single-chip microcomputer by being arranged on the multiple spot Weft search unit of yarn-storing drum outer surface with signal, with the required rotating speed of control of conversion buncher output, overcomes above-mentioned deficiency.
For achieving the above object, the present invention is achieved through the following technical solutions: this Weft controller comprises weft accumulator, single-chip microcomputer and frequency changer circuit, on the corresponding position of yarn-storing drum outer surface, some Weft search units are set respectively, to survey whether existing of position weft yarn, and send the signal of " having " or " nothing " weft yarn simultaneously to single-chip microcomputer, single-chip microcomputer according to the signal that obtains through in establish routine processes after output speed by frequency changer circuit adjusting motor.
Above-mentioned Weft search unit can adopt such structure, mainly is made up of sniffer housing, finding lost pick head, probe contiguous block, two same polarity magnets, light source, optical receiver and end cap.The mutual expelling force of finding lost pick head by the homopolarity magnet is pressed in the groove on the yarn-storing drum, the probe contiguous block that the finding lost pick head other end is ined succession and is positioned at the sniffer housing, have a through hole in the probe contiguous block, two ends are equipped with light source and optical receiver, the diameter of through hole is selected and will be satisfied: when the finding lost pick head dropped in the groove, the light that light source is sent arrived optical receiver by through hole; When finding lost pick head during, to stop that the light that light source sends enters optical receiver by weft yarn jack-up.
Usually, Weft search unit has three in the weft accumulator, is separately positioned on the outer position before, during and after vertically of yarn-storing drum outer surface.
The present invention has been owing to adopted above-mentioned technical solution, thereby has following beneficial effect: the one, and adopt and Weft search unit is set at the yarn-storing drum outer surface, overcome the damage of reed to weft yarn, improved the quality of institute's knitted fabric; The 2nd, before, during and after Weft search unit is provided with three, the signal that makes it offer single-chip microcomputer is more abundant, and the weft yarn output of various requirement can be provided to loom, as damask etc.; The 3rd, Weft search unit is located at the yarn-storing drum outside, and installation is adjusted convenient; The 4th, newly-designed Weft search unit compact conformation is reasonable, is convenient to processing; The 5th, photoelectric cell is sealed in Weft search unit inside, and having stopped external environment condition dust influences photoelectric cell, has improved the photoelectric cell functional reliability.
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is the weft accumulator structural representation of Weft controller of the present invention.
Fig. 2 is the positive sectional structure chart of Weft search unit of the present invention.
Fig. 3 is the electric control theory figure of Weft controller of the present invention.
Fig. 4 is the single-chip microcomputer main program flow block diagram of Weft controller of the present invention.
Fig. 5 is the lifting frequency control program FB(flow block) of Weft controller of the present invention.
At first the numbering to each member among the figure describes :-weft accumulator, 2-motor, 3-line outlet; the 4-incoming line, 5-bobbin winoler, 6-hairbrush circle; 7-sniffer housing, 8-yarn-storing drum, 9-groove; 10-finding lost pick support, 11-finding lost pick head, the 12-contiguous block of popping one's head in; 13,13 '-the same polarity magnet, the 14-through hole; the 15-Weft search unit, 16-end cap, 17-infrared light sources; the 18-infrared receiver, 19-weft yarn, 20-single-chip microcomputer; the 21-frequency changer circuit; 22-principal current control circuit, 23-overload protecting circuit, 24-overheating protection circuit; the 25-voltage detecting circuit, the 26-current detection circuit.
The present embodiment Weft controller is by weft accumulator 1, and single-chip microcomputer 20 and frequency changer circuit 21 are formed.
As shown in Figure 1: weft accumulator 1 is by motor 2, bobbin winoler 5, yarn-storing drum 8, and hairbrush circle 6 and Weft search unit 15 are formed.Weft yarn 19 penetrates the coiling of incoming line 4 process bobbin winolers 5 and is around on the yarn-storing drum 8, and hairbrush circle 6 is contained in the end of yarn-storing drum 8 to prevent the loosening of weft yarn 19, and the weft yarn 19 last line outlets 3 supply looms that pass through are weaved.On yarn-storing drum 8, have some grooves 9 vertically, three Weft search units 15 before, during and after finding lost pick support 10 upper edge yarn-storing drums 8 are axially being adorned side by side, 15 ', 15 "; and on yarn-storing drum 8 position at a certain finding lost pick head 11 places; when no weft yarn 19 twined, corresponding finding lost pick head 11 dropped in the groove 9; When weft yarn 19 twined, corresponding finding lost pick head can be by jack-up.
As shown in Figure 2, Weft search unit 15 comprises sniffer housing 7, finding lost pick head 11, probe contiguous block 12, two same polarity magnets 13 and 13 ', infrared light sources 17, infrared receiver 18 and end cap 16, the mutual expelling force of finding lost pick head 11 by the homopolarity magnet is pressed in the groove 9 on the yarn-storing drum 8, the probe contiguous block 12 that finding lost pick head 11 other ends are ined succession and are positioned at sniffer housing 7, have a through hole 14 parallel in the probe contiguous block 12 with yarn-storing drum 8 axis, two ends are equipped with infrared light sources 17 and infrared receiver 18, the diameter of through hole 14 is selected and will be satisfied: in the time of in finding lost pick head 11 drops on groove 9, the light that infrared light sources 17 is sent arrives infrared receiver 18 by through hole 14, when finding lost pick head 11 during, to stop that the light that infrared light sources 17 sends enters infrared receiver 18 by weft yarn 19 jack-up.
For controlling the size of mutual expelling force, the end cap 16 of Weft search unit 15 is being pressed same polarity magnet 13, between end cap 16 and the sniffer housing 7 for being threaded, end cap 16 upper ends have groove, can regulate same polarity magnet 13 and 13 ' between distance, thereby reach the purpose of control mutual expelling force, light source 17 places sniffer housing 7 two side inner chambers to be hedged off from the outer world respectively with optical receiver 18 in addition.
Certainly, two same polarity magnets 13 and 13 ' available flexible member such as spring replace.
Electric control theory of the present invention is seen Fig. 3.It is a real-time control system that is made of one-chip computer 20.It mainly is power source one motor 2 to weft accumulator 1, according to the requirement that stores the weft yarn amount, realize automatic frequency-conversion (rotating speed) tracking, reach no matter yarn amount what need, can both guarantee to provide how many yarn feeding amounts, and weft accumulator 1 is when operate as normal, and it can also store the weft yarn 19 of some on yarn-storing drum 8 in the yarn amount of guaranteeing supply.
The main circuit of realizing above-mentioned functions is made up of six high power transistor T1-T6 that serve as D1-D6 rectifies, the capacitor C filtering that exchanges a direct current and serve as the inversion that direct current one exchanges.R1 and R2 are used for the sampling of voltage detecting, and the I place is used for the sampling of current detecting.According to Weft search unit 15 ', 15 " detected signal after single-chip microcomputer 20 is handled; go to regulate the pulse width of inverter and the frequency of output AC voltage; control the turn-on and turn-off of T1-T6 respectively, is realized motor stator voltage and Frequency Synchronization adjusting, to reach the frequency control of motor 2.
Comprise two circulations in the main program of single-chip microcomputer: the detection circulation before 1, starting, it is preceding to principal current that it mainly finishes the weft accumulator startup, and voltage is whether detection normally, only when fault-free, just provide the permission enabling signal, and the outside input of inquiry Weft search unit 15,15 ', 15 " state.2, operation Control Circulation, it mainly finishes the lifting frequency of motor 2, rotating and failure monitoring and demonstration.The block diagram of said procedure flow process as shown in Figure 4.Each alphabetical implication is among Fig. 4: the AA-main program, and the BB-initialization detects before CC-starts, DD-allows to start, and the EE-lifting frequency detects, the FF-fault detect, is not the GG-fault? HH-normally shows, II-parking situation, the JJ-demonstration of stopping, KK-stops, the LL-fault is interrupted, the MM-troubleshooting, and the NN-fault shows.
Fig. 5 is a lifting frequency control program FB(flow block).Each alphabetical implication is among Fig. 5: AA '-lifting frequency control program, and BB '-sampling and digital filtering, CC '-motor M shuts down; DD '-frequency reducing counter n set; frequency reducing counter n-1, EE '-raising frequency f=70Hz, r=70Hz * 60/min; FF '-counter=" 0 "? GG '-delay time not?, HH '-protection is stopped, II '-time-delay; JJ '-time-delay, KK '-return.In the block diagram, II be Weft search unit 15 ', III is a Weft search unit 15 ", r represents rotating speed, f represents frequency.To Fig. 4, Fig. 5 program flow chart is explained as follows below:
The operation principle of Weft search unit is: Weft search unit 15 or 15 on yarn-storing drum 8 ' or 15 " when the corresponding position does not have weft yarn 19; finding lost pick head 11 is by like pole 13; 13 ' mutual expelling force be pushed into the A position; infrared light sources 17 passes through hole 14 and is received by infrared receiver 18; produce reaction signal (being made as state " 1 "), be sent to single-chip microcomputer 20 to control in real time; When weft yarn 19 is arranged on the yarn-storing drum 8 by finding lost pick head 11 bottoms, the tension force of weft yarn 19 has overcome like pole 13,13 ' mutual expelling force, make finding lost pick head 11 be moved to the B position from A, like this, through hole 14 is blocked, and infrared light sources 17 just can not pass through through hole 14, infrared receiver 18 does not just receive optical signal, makes it to produce a reaction signal (being made as state " 0 ") yet.Obviously, the displacement that finding lost pick head 11 on the Weft search unit 15 is taken place acts on the infrared receiver 18, and produces corresponding reaction signal, measure this signal, the existence that has just recorded weft yarn 19 on the yarn-storing drum 8 of corresponding Weft search unit position whether.
When Weft search unit 15 is used to detect weft accumulator and normally send latitude, whether the sending into of weft yarn, if weft yarn interrupts suddenly sending into, weft accumulator quits work, and sends a signal simultaneously and removes to turn-off the loom power supply.But store the yarn drum at this moment and upward guarantee there is the weft yarn of some, be connected so that change yarn.
Below above-mentioned block diagram is explained as follows:
The operation principle of Weft search unit is: Weft search unit 15 or 15 on yarn-storing drum 8 ' or 15 " when the corresponding position does not have weft yarn 19; finding lost pick head 11 is by like pole 13; 13 ' mutual expelling force be pushed into the A position; infrared light sources 17 passes through hole 14 and is received by infrared receiver 18; produce reaction signal (being made as state " 1 "), be sent to single-chip microcomputer 20 to control in real time; When weft yarn 19 is arranged on the yarn-storing drum 8 by finding lost pick head 11 bottoms, the tension force of weft yarn 19 has overcome like pole 13,13 ' mutual expelling force, make finding lost pick head 11 be moved to the B position from A, like this, through hole 14 is blocked, and infrared light sources 17 just can not pass through through hole 14, infrared receiver 18 does not just receive optical signal, makes it to produce a reaction signal (being made as state " 0 ") yet.Obviously, the displacement that finding lost pick head 11 on the Weft search unit 15 is taken place acts on the infrared receiver 18, and produces corresponding reaction signal, measure this signal, the existence that has just recorded weft yarn 19 on the yarn-storing drum 8 of corresponding Weft search unit position whether.
When Weft search unit 15 is used to detect weft accumulator and normally send latitude, whether the sending into of weft yarn, if weft yarn interrupts suddenly sending into, weft accumulator quits work, and sends a signal simultaneously and removes to turn-off the loom power supply.But store the yarn drum at this moment and upward guarantee there is the weft yarn of some, be connected so that change yarn.
Claims (6)
1, a kind of Weft controller, comprise weft accumulator (1), single-chip microcomputer (20) and frequency changer circuit (21), it is characterized in that: some Weft search units (15) are arranged in the weft accumulator (1), be separately positioned on the corresponding position of yarn-storing drum (8) outer surface, with the existence of surveying position weft yarn (19) whether, and the signal of sending " having " or " nothings " weft yarn (19) for simultaneously single-chip microcomputer (20), single-chip microcomputer (20) according to the signal that obtains through in pass through the state of frequency changer circuit (21) adjusting motor (2) after establishing routine processes.
2, Weft controller according to claim 1, it is characterized in that: Weft search unit (15) comprises sniffer housing (7), finding lost pick head (11), probe contiguous block (12), two same polarity magnets (13) and (13 '), light source (17), optical receiver (18) and end cap (16), the mutual expelling force of finding lost pick head (11) by the homopolarity magnet is pressed in the groove (9) on the yarn-storing drum (8), the probe contiguous block (12) that finding lost pick head (11) other end is ined succession and is positioned at sniffer housing (7), have a through hole (14) in the probe contiguous block (12), two ends are equipped with light source (17) and optical receiver (18), the diameter of through hole (14) is selected and will be satisfied: in the time of in finding lost pick head (11) drops on groove (9), the light that light source (17) is sent arrives optical receiver (18) by through hole (14), when finding lost pick head (11) during, to stop that the light that light source (17) sends enters optical receiver (18) by weft yarn (19) jack-up.
3, Weft controller according to claim 2, the end cap (16) that it is characterized in that Weft search unit is being pressed same polarity magnet (13), between end cap (16) and the sniffer housing (7) for being threaded, end cap (16) upper end has thread regulator, can regulate same polarity magnet 13 and 13 ' between distance, light source (17) and optical receiver (18) place sniffer housing (7) two side inner chambers respectively and are hedged off from the outer world.
4, Weft controller according to claim 2 is characterized in that the available flexible member in two same polarity magnets (13) and (13 ') replaces.
5, Weft controller according to claim 1 and 2 is characterized in that: the interior Weft search unit of weft accumulator (1) (15) has three, be separately positioned on yarn-storing drum (8) outer surface outward vertically before, in, after the position on.
6, Weft controller according to claim 5 is characterized in that: the main program of single-chip microcomputer (20) comprises startup prior fault trace routine and lifting frequency control program, and the command signal of lifting frequency all directly reads from Weft search unit (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98115439 CN1240844A (en) | 1998-07-05 | 1998-07-05 | Weft yarn controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98115439 CN1240844A (en) | 1998-07-05 | 1998-07-05 | Weft yarn controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1240844A true CN1240844A (en) | 2000-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98115439 Pending CN1240844A (en) | 1998-07-05 | 1998-07-05 | Weft yarn controller |
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| Country | Link |
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| CN (1) | CN1240844A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666013B (en) * | 2009-02-11 | 2011-06-15 | 宁波太阳纺织机械有限公司 | Broken yarn detecting circuit for yarn feeder |
| CN102965799A (en) * | 2012-12-21 | 2013-03-13 | 慈溪太阳洲纺织科技有限公司 | Weft accumulator |
| CN103726207A (en) * | 2012-10-16 | 2014-04-16 | 典洋针织机械股份有限公司 | Yarn feeding device and yarn feeding method |
-
1998
- 1998-07-05 CN CN 98115439 patent/CN1240844A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666013B (en) * | 2009-02-11 | 2011-06-15 | 宁波太阳纺织机械有限公司 | Broken yarn detecting circuit for yarn feeder |
| CN103726207A (en) * | 2012-10-16 | 2014-04-16 | 典洋针织机械股份有限公司 | Yarn feeding device and yarn feeding method |
| CN103726207B (en) * | 2012-10-16 | 2015-12-02 | 典洋针织机械股份有限公司 | Yarn-feeding device and yarn feeding method |
| CN102965799A (en) * | 2012-12-21 | 2013-03-13 | 慈溪太阳洲纺织科技有限公司 | Weft accumulator |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |