CN103225166A - Cylindrical knitting machine and method for monitoring damage of knitting needles on cylindrical knitting machine - Google Patents
Cylindrical knitting machine and method for monitoring damage of knitting needles on cylindrical knitting machine Download PDFInfo
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- CN103225166A CN103225166A CN201310142845XA CN201310142845A CN103225166A CN 103225166 A CN103225166 A CN 103225166A CN 201310142845X A CN201310142845X A CN 201310142845XA CN 201310142845 A CN201310142845 A CN 201310142845A CN 103225166 A CN103225166 A CN 103225166A
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- knitting machine
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Abstract
The invention relates to a cylindrical knitting machine. The cylindrical knitting machine comprises a cylindrical turnplate, multiple knitting needles, an optical sensor, a controller and a yarn cleaner, wherein the optical sensor and the yarn cleaner are connected with the controller; a transmitting optical channel and a receiving optical channel of the optical sensor share the same optical channel; the yarn cleaner is a blowing nozzle of which the opening and closing are controlled by an electromagnetic valve; the diameter of a light beam emitted by the optical sensor is smaller than the width of the middle part of a needle hook of each knitting needle; the diameter of the light beam is 1.0-2.0 mm; the width of the middle part of the needle hook of each knitting needle is 0.8-2.3 mm; and the distance from the optical sensor to the middle part of the needle hook of each knitting needle is 2.0-20.5 mm. The cylindrical knitting machine has the advantages of novel structure, high accuracy for alarming the damage of the knitting needles and high sensing accuracy of the optical sensor.
Description
Technical field
The present invention relates to a kind of drum shape loom.
Background technology
Drum shape knitting machine is a kind of knitting machine commonly used, its structure mainly comprises cylindrical shape rotating disk and a plurality of knitting needle on the frame, the quantity of knitting needle generally is 1000-3000, knitting needle is equally spaced to be installed on the cylindrical shape rotating disk, gap between the contiguous needles is generally between 0.8mm-2.0mm, knitting needle very easily damages in actual the use, the mode that knitting needle damages mainly is to fracture or be out of shape, on frame, be fixed with baffle plate, the position is in the top of cylindrical shape rotating disk, will touch baffle plate in case knitting needle damages when rotating, because the concertedness of using does not have very first time shutdown will cause the damage of other knitting needle after a certain knitting needle damages, loss will enlarge.Whether all be to adopt sensor monitoring knitting needle to damage at present, sensor, the transmitter emitted laser is accepted by receiver through metal knitting needle reflection and changed into the signal of telecommunication, judges thus whether knitting needle damages if comprising transmitter and receiver.The deficiency that existing drum shape knitting machine exists is that knitting needle faiture alarm accuracy is low; low wrong report or the knitting needle of very easily taking place of the sensitivity of sensor sensing damages situation about not reporting; in actual the use; the emission port of sensor and the receiving port of receiver are along with the accumulation of service time can be infected with a lot of dusts; its main cause is that the surrounding environment of knitting machine is poor; for example the yarn that comes off from yarn is wadded a quilt with cotton; the dust that produces during operation and the high light of operation room all can influence the degree of accuracy of sensor sensing; therefore whenever need after a while to shut down the emission port of sensor and the receiving port of receiver are cleared up, not only reduced low wrong report or the knitting needle of easily taking place of efficient of producing but also the induction accuracy that can't thoroughly solve sensor sensing and damaged the problem of not reporting.
Summary of the invention
In order to solve the low problem of knitting needle faiture alarm accuracy that existing drum shape knitting machine exists, a goal of the invention of the present invention is to disclose a kind of novel structure, the drum shape knitting machine that knitting needle faiture alarm accuracy is high; Another goal of the invention of the present invention is the knitting needle damage monitoring method that discloses on the high drum shape knitting machine of a kind of knitting needle faiture alarm accuracy.
To achieve these goals, the present invention has adopted following technical scheme:
Drum shape knitting machine comprises cylindrical shape rotating disk, many knitting needles, optical sensor, controller and yarn clearers, and all knitting needles equidistantly arrangement of rule are fixed on the cylindrical shape rotating disk, and optical sensor all links to each other with controller with yarn clearer; The transmitting tube passage of optical sensor and the shared same optical channel of reception optical channel, the knitting needle of transmitting tube outlet on the cylindrical shape rotating disk of optical sensor; Described yarn clearer is the blowing nozzle by the solenoid control switch, the optical channel of the inflatable mouth of blowing nozzle between optical sensor and knitting needle; The beam diameter that optical sensor sends is less than the width at knitting needle pinhock middle part, and beam diameter is between the 1.0mm-2.0mm, and the width at knitting needle pinhock middle part is between the 0.8mm-2.3mm, and the distance at optical sensor and knitting needle pinhock middle part is between the 2.0mm-20.5mm.
As preferably, the gap between the contiguous needles is between 0.9mm-1.9mm.
Knitting needle damage monitoring method on the drum shape knitting machine, drum shape knitting machine such as above-mentioned, the knitting needle monitoring method is as follows: (1) optical sensor is to drum shape knitting machine emission light and receive reverberation, converts the voltage signal of corresponding fluctuation to and transfers to controller by intensity of reflected light; (2) controller compares the voltage signal and the preset value of fluctuation, the high level that is designated as that is higher than setting value, be lower than the low level that is designated as of setting value, judge by comparing two kinds of level intervals time of advent or duration whether knitting needle damages and send corresponding signal; (3) controller control yarn clearer cleans the optical channel between optical sensor and the knitting needle.
As preferably, the level duration exceeds 1.5 times of last level duration, and controller sends knitting needle faiture alarm signal.
As preferably, when the fluctuating range of the voltage signal of optical sensor output is lower than preset value, controller control yarn clearer cleans the optical channel between optical sensor and the knitting needle, the timing of optical channel cleaning very good, cleaning efficiency height.
Controller timing controlled yarn clearer cleans the optical channel between optical sensor and the knitting needle, and is easy to operate.
Adopted the drum shape knitting machine of technique scheme, the beam diameter that optical sensor sends is that light beam is on the knitting needle fully less than the width at knitting needle pinhock middle part, has improved the accuracy of induction; Yarn clearer is the blowing nozzle by the solenoid control switch, the optical channel of the inflatable mouth of blowing nozzle between optical sensor and knitting needle, clear light passage that can be regularly, improve the accuracy of optical sensor induction, the transmitting tube passage of optical sensor and the shared same optical channel of reception optical channel are convenient to yarn clearer clear light passage fast.The width at knitting needle pinhock middle part is between the 0.8mm-2.3mm, the stock size that belongs to knitting needle, beam diameter is between the 1.0mm-2.0mm, the distance at optical sensor and knitting needle pinhock middle part is between the 2.0mm-20.5mm, the diameter of light beam is through accurate calculating, test and the final data that draws of a large amount of creative works many times, the factor that needs in the process to consider comprises the size at knitting needle pinhock middle part, the interference of yarn wadding dust, the vibrations of knitting machine, the injecting with the transmitting tube passage and receive the performance etc. of the optical sensor of the shared same optical channel of optical channel of light fixture light and sunray, should guarantee that the probability that accuracy that knitting needle damage to be judged above-mentioned unfavorable factor will take place to judge by accident again drops to minimum, adopted the drum shape knitting machine of above-mentioned data, it is more than 99.5% that knitting needle damages the accuracy rate of judging.In sum, the advantage of this drum shape knitting machine is a novel structure, knitting needle faiture alarm accuracy height, and whether optical sensor accuracy of sensors height can damage by real-time and effective monitoring knitting needle, and the cleaned at regular intervals optical channel, has improved the efficient of processing.
Description of drawings
Fig. 1: the structural representation of the embodiment of the invention.
The specific embodiment
1 couple of the present invention is described further below in conjunction with accompanying drawing.
Drum shape knitting machine as shown in Figure 1 comprises cylindrical shape rotating disk 1, many knitting needles 2, optical sensor 4, controller and yarn clearers 3, and all knitting needles 2 equidistantly arrangement of rule are fixed on the cylindrical shape rotating disk 1, and optical sensor 4 all links to each other with controller with yarn clearer 3.The transmitting tube passage of optical sensor 4 and the shared same optical channel of reception optical channel, the knitting needle 2 of transmitting tube outlet on cylindrical shape rotating disk 1 of optical sensor 4.Yarn clearer 3 is the blowing nozzles by the solenoid control switch, the optical channel of the inflatable mouth of blowing nozzle between optical sensor 4 and knitting needle 2.
The beam diameter that optical sensor 4 sends is less than the width at knitting needle 2 pinhocks middle part, and beam diameter is between the XXmm-XX mm, and the width at knitting needle 2 pinhocks middle part is between the 0.8mm-2.3mm, and the distance at optical sensor 4 and knitting needle 2 pinhocks middle part is between the 1.5mm-3.0mm.Gap between the contiguous needles 2 is between 0.9mm-1.9mm.
Knitting needle damage monitoring method on the drum shape knitting machine, (1) optical sensor 4 is launched light and is received reverberation to drum shape knitting machine, convert the voltage signal of corresponding fluctuation to and transfer to controller by intensity of reflected light, specifically be that optical sensor 4 will receive to such an extent that intensity of reflected light converts the correspondent voltage signal to, exercise normal knitting needle 2 when knitting machine and arrive emission light beam position, then return to penetrate and emit light into optical sensor, gap between knitting needle 2 that fractures or contiguous needles 2 arrives the light beam position, then return and penetrate weakened even the nothing that emits light into optical sensor 4, so fluctuate with regard to the voltage signal that causes optical sensor 4 outputs, the voltage signal of high more then optical sensor 4 outputs of intensity of reflected light is high more; (2) controller compares the voltage signal and the preset value of fluctuation, the high level that is designated as that is higher than setting value, be lower than the low level that is designated as of setting value, judge by comparing two kinds of level intervals time of advent or duration whether knitting needle damages and send corresponding signal, for example get low duration, if certain low duration exceeds 1.5 times of last low duration, then thinking has knitting needle 2 to fracture, the controller output alarm signal; (3) optical channel between controller control 3 pairs of optical sensors of yarn clearer and the knitting needle cleans, specifically be that the fluctuating range of working as the voltage signal of optical sensor 4 outputs is lower than preset value, then represent the optical channel crested, optical channel between controller control 3 pairs of optical sensors 4 of yarn clearer and the knitting needle 2 cleans, the cleaning efficiency height cleans the very good of timing.
Above-mentioned yarn clearer 3 be by the voltage signal of optical sensor 4 output through the laggard line operate of comparison, controller can also 3 pairs of optical sensors 4 of timing controlled yarn clearer and knitting needle 2 between optical channel clean, operate very convenient.
Knitting needle in this patent damages accuracy rate and the width in the middle part of knitting needle 2 pinhocks, the optical sensor 4 judged all has direct relation with the distance and the beam diameter at knitting needle pinhock middle part, and concrete experimental data is as follows.
The width at knitting needle pinhock middle part is 0.8mm, and the distance at optical sensor and knitting needle pinhock middle part is 2.5mm, and beam diameter is 2mm, and it is 99.6% that knitting needle damages the accuracy rate of judging.
The width at knitting needle pinhock middle part is 2.3mm, and the distance at optical sensor and knitting needle pinhock middle part is 7mm, and beam diameter is 1mm, and it is 99.7% that knitting needle damages the accuracy rate of judging.
The width at knitting needle pinhock middle part is 1.5mm, and the distance at optical sensor and knitting needle pinhock middle part is 10.5mm, and beam diameter is 1.5mm, and it is 99.6% that knitting needle damages the accuracy rate of judging.
Claims (6)
1. drum shape knitting machine is characterized in that comprising cylindrical shape rotating disk, many knitting needles, optical sensor, controller and yarn clearers, and all knitting needles equidistantly arrangement of rule are fixed on the cylindrical shape rotating disk, and optical sensor all links to each other with controller with yarn clearer; The transmitting tube passage of optical sensor and the shared same optical channel of reception optical channel, the knitting needle of transmitting tube outlet on the cylindrical shape rotating disk of optical sensor; Described yarn clearer is the blowing nozzle by the solenoid control switch, the optical channel of the inflatable mouth of blowing nozzle between optical sensor and knitting needle; The beam diameter that optical sensor sends is less than the width at knitting needle pinhock middle part, and beam diameter is between the 1.0mm-2.0mm, and the width at knitting needle pinhock middle part is between the 0.8mm-2.3mm, and the distance at optical sensor and knitting needle pinhock middle part is between the 2.0mm-20.5mm.
2. drum shape knitting machine according to claim 1 is characterized in that gap between the contiguous needles is between 0.9mm-1.9mm.
3. the knitting needle damage monitoring method on the drum shape knitting machine, it is characterized in that drum shape knitting machine according to claim 1, the knitting needle monitoring method is as follows: (1) optical sensor is to drum shape knitting machine emission light and receive reverberation, converts the voltage signal of corresponding fluctuation to and transfers to controller by intensity of reflected light; (2) controller compares the voltage signal and the preset value of fluctuation, the high level that is designated as that is higher than setting value, be lower than the low level that is designated as of setting value, judge by comparing two kinds of level intervals time of advent or duration whether knitting needle damages and send corresponding signal; (3) controller control yarn clearer cleans the optical channel between optical sensor and the knitting needle.
4. the knitting needle damage monitoring method on the drum shape knitting machine according to claim 5 is characterized in that the level duration exceeds 1.5 times of last level duration, and controller sends knitting needle faiture alarm signal.
5. the knitting needle monitoring method on the drum shape knitting machine according to claim 5, it is characterized in that being lower than preset value when the fluctuating range of the voltage signal of optical sensor 4 output, controller control yarn clearer cleans the optical channel between optical sensor and the knitting needle.
6. the knitting needle damage monitoring method on the drum shape knitting machine according to claim 5 is characterized in that controller timing controlled yarn clearer cleans the optical channel between optical sensor and the knitting needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142845XA CN103225166A (en) | 2013-04-23 | 2013-04-23 | Cylindrical knitting machine and method for monitoring damage of knitting needles on cylindrical knitting machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310142845XA CN103225166A (en) | 2013-04-23 | 2013-04-23 | Cylindrical knitting machine and method for monitoring damage of knitting needles on cylindrical knitting machine |
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| CN103225166A true CN103225166A (en) | 2013-07-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469472A (en) * | 2013-09-13 | 2013-12-25 | 中国科学院上海光学精密机械研究所 | Online detection device and detection method for knitting needles of knitting machine |
| CN106521798A (en) * | 2016-12-05 | 2017-03-22 | 泉州佰源机械科技股份有限公司 | Intelligent needle measuring instrument mechanism for circular knitting machine |
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| CN201330311Y (en) * | 2008-12-29 | 2009-10-21 | 张民 | Sensor |
| CN202380227U (en) * | 2011-12-26 | 2012-08-15 | 浙江恒强科技股份有限公司 | Needle latch alarm device of silk stocking machine |
| CN202530263U (en) * | 2012-03-28 | 2012-11-14 | 苏州恒耀智能设备有限公司 | Warning device for detecting needle breakage of circular knitting machine |
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2013
- 2013-04-23 CN CN201310142845XA patent/CN103225166A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3529445A (en) * | 1968-04-08 | 1970-09-22 | Sick Erwin | Apparatus for controlling the operation of circular knitting machines |
| US3904529A (en) * | 1973-04-27 | 1975-09-09 | Lfe Corp | Gas discharge apparatus |
| US3946578A (en) * | 1973-09-18 | 1976-03-30 | Joseph Venczel | Detection of defective knitting needles of a knitting machine |
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| CN1207083A (en) * | 1995-12-08 | 1999-02-03 | 梅名格-Iro公司 | Method for monitoring scanning conditions during control of a yarn feeder |
| CN101535545A (en) * | 2006-11-13 | 2009-09-16 | 蒙明格-埃罗有限公司 | Method and apparatus for needle monitoring |
| DE102007010417A1 (en) * | 2007-03-01 | 2008-09-04 | Memminger-Iro Gmbh | Self-cleaning optical monitoring unit for knitting machine needles, includes air blast to remove oil and dust at intervals, with optional removable cover and renewable transparent tape system |
| CN201136948Y (en) * | 2007-12-13 | 2008-10-22 | 何峰 | Photoelectric induction alarming device of knitting large circular loom for needle breaking |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469472A (en) * | 2013-09-13 | 2013-12-25 | 中国科学院上海光学精密机械研究所 | Online detection device and detection method for knitting needles of knitting machine |
| CN103469472B (en) * | 2013-09-13 | 2016-03-09 | 中国科学院上海光学精密机械研究所 | Needle of needleloom on-line measuring device and detection method |
| CN106521798A (en) * | 2016-12-05 | 2017-03-22 | 泉州佰源机械科技股份有限公司 | Intelligent needle measuring instrument mechanism for circular knitting machine |
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Application publication date: 20130731 |