The device for testing hair feather state of a kind of yarn under action of high-speed airflow
Technical field
The present invention relates to device for testing hair feather state, particularly relate to the device for testing hair feather state of a kind of yarn under action of high-speed airflow.
Background technology
Being created in the spinning process of filoplume is inevitably, and be relevant, also relevant with the situation and the parts of textile machine with the raw material that uses.Filoplume is the important indicator that characterizes yarn property, also is the problem that is always perplexing weaving processing, although can by singe, starching, waxing attachment wait and improve the Yarn filoplume situation, do not tackle the problem at its root.More present novel spinning technology, as compact spinning technology, its basic goal also is to reduce filoplume as far as possible, improves the yarn product quality.
The harm of filoplume is mainly: (1) forms new cotton knot in weaving, influence fabric appearance; Make the adjoining yarn company of twining mutually when (2) weaving, cause the wefting insertion difficulty; (3) in each operation of downstream, filoplume is come off because of rubbing, and forms flyings, contaminated environment, is detrimental to health, and also can produce new fault and yarn and fabric quality are descended.
The assay method of filoplume instrument is that optical detection device is detected length adjustment to the relevant position of distance yarn according to the filoplume of setting at present, and detecting element is a light-sensitive element.Yarn, is given prominence to yarn and is surpassed and set the inswept light-sensitive element of filoplume that detects length by test point with constant speed, causes the light-sensitive element light flux variations, makes it to change into the signal of telecommunication, forms count pulse.Stipulate according to existing testing standard " FZ/T 01086-2000 textiles Yarn filoplume assay method ", cancellation 60m/min test speed, change 30m/min into, but at present loom go into the latitude rate mostly more than 1000m/min, so the filoplume state of filoplume instrument test can't react the filoplume state in the weft weaving process.Yet the present inventor finds, if improve yarn test speed, because the effect of air drag may cause the lodging of yam surface filoplume, can't reflect the Yarn filoplume state by test result.Under yarn high-speed cruising state, the test system hardware dynamic response requirement is also improved greatly simultaneously, must guarantee enough measuring accuracies.Therefore at present yarn researching and analysing of filoplume running status in the high-speed cruising process lacked effective tester.
Summary of the invention
Technical problem to be solved by this invention provides the device for testing hair feather state of a kind of yarn under action of high-speed airflow, makes it possible to accurately test out the filoplume state of yarn in the high-speed cruising process.
The technical solution adopted for the present invention to solve the technical problems is: the device for testing hair feather state of a kind of yarn under action of high-speed airflow is provided, comprises: yarn feeding roller, yarn path, compressed air inlet, annular air-flow path, yarn sighting tube, delivery roller, ccd image acquisition system and computer; Described yarn feeding roller and delivery roller are used for fixing the yarn that passes described yarn path; Described compressed air inlet is a circular channel; Described compressed air inlet directly links to each other with described annular air-flow path; The wall of described annular air-flow path is airflow design; Described ccd image acquisition system is positioned over outside the yarn sighting tube (5), is used to catch the filoplume state, and the filoplume state transfer is handled to computer.
The diameter of the compressed air inlet of the device for testing hair feather state of described yarn under action of high-speed airflow is 2mm-6mm.
The maximum dimension D 1 of the annular air-flow path of the device for testing hair feather state of described yarn under action of high-speed airflow is 16mm-20mm, and minimum diameter D2 is identical with the diameter of described yarn path, highly is 150mm-250mm.
The diameter of the yarn path of the device for testing hair feather state of described yarn under action of high-speed airflow is 4mm-10mm, and length is 200mm-300mm.
The yarn sighting tube of the device for testing hair feather state of described yarn under action of high-speed airflow is a glass tube, and diameter is than the big 2mm-6mm of diameter of described yarn path, and length is 200mm-1000mm.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the present invention compared with prior art, have following advantage and good effect: the present invention is by changing compressed-air actuated supply gas pressure, obtain tangential gas flow in yarn sighting tube porch friction speed, thereby the different speed of service of simulation yarn, in air velocity not simultaneously, the situation of change of observation Yarn filoplume state, thereby the dynamic test of yarn is changed into the relative motion test of anchor yarns, overcome the yarn shortcoming that the filoplume state is difficult to test under the high-speed cruising effect, satisfied the production needs.
Description of drawings
Fig. 1 is the structural representation according to the device for testing hair feather state of yarn in the embodiment of the present invention under action of high-speed airflow;
Fig. 2 is the structural representation according to annular air-flow path in the embodiment of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiments of the present invention relate to the device for testing hair feather state of a kind of yarn under action of high-speed airflow, comprising: yarn feeding roller 1, yarn path 2, compressed air inlet 3, annular air-flow path 4, yarn sighting tube 5, delivery roller 8, ccd image acquisition system 9 and computer 10; Described yarn feeding roller 1 and delivery roller 8 are used for fixing the yarn 6 that passes described yarn path 2; Described compressed air inlet 3 is a circular channel; Described compressed air inlet 3 directly links to each other with described annular air-flow path 4; The wall of described annular air-flow path 4 is airflow design; Described ccd image acquisition system 9 is positioned over outside the yarn sighting tube (5), is used to catch filoplume 7 states, and handles to computer 10 filoplume 7 state transfer.The diameter of described compressed air inlet 3 is 2mm-6mm.The maximum dimension D 1 of described annular air-flow path 4 is 16mm-20mm, minimum diameter D2 is identical with the diameter of described yarn path 2, highly be 150mm-250mm, thereby guarantee that the air-flow in the annular air-flow path 4 forms tangential gas flow in yarn sighting tube 5 porch.Therefore the diameter of described yarn path 2 is 4mm-10mm, and length is 200mm-300mm, can be configured according to the number of the yarn diameter to yarn path 2.Described yarn sighting tube 5 is a glass tube, and diameter is than the big 2mm-6mm of diameter of described yarn path 2, and length is 200mm-1000mm, therefore can adjust the length of yarn sighting tube 5 according to the requirement of yarn test.
As shown in Figure 1 and Figure 2, the present invention is work like this: feeding yarn 6, will pass the yarn 6 of yarn path 2 and fix by yarn feeding roller 1 and delivery roller 8; Compressed air enters annular air-flow path 4 by compressed air inlet 3, and forms tangential gas flow in yarn sighting tube 5 porch; By changing compressed-air actuated supply gas pressure, obtain tangential gas flow in yarn sighting tube 5 porch friction speeds, thus the different speed of service of simulation yarn 6, in air velocity not simultaneously, the situation of change of observation Yarn filoplume 7 states; Yarn filoplume 7 states can also can be caught filoplume 7 states by ccd image acquisition system 9 directly by perusal, and handle to computer 10 filoplume 7 state transfer.Be not difficult to find, by changing compressed-air actuated supply gas pressure, simulated the different speed of service of yarn, make yarn under the high-speed cruising state, the filoplume state can access accurate test, has satisfied the production needs.
Below in conjunction with specific embodiment the present invention is done further and to elaborate.
Embodiment 1: the device for testing hair feather state of a kind of yarn under action of high-speed airflow comprises: yarn feeding roller 1, yarn path 2, compressed air inlet 3, annular air-flow path 4, yarn sighting tube 5 and delivery roller 8.Yarn path 2 diameters are 4mm, and length is 200mm; Compressed air inlet 3 is a circular channel, diameter is 2mm, compressed air inlet 3 directly links to each other with annular air-flow path 4, the maximum dimension D 1 of annular air-flow path 4 is 16mm, minimum diameter D2 is identical with yarn path 2 diameters, wall designs for streamlined, highly is 150mm, thereby guarantees that air-flow forms tangential gas flow in yarn sighting tube 5 porch; Yarn sighting tube 5 is a glass tube, and diameter is than the big 2mm of yarn path 2 diameters, and length is 200mm.
Embodiment 2: the device for testing hair feather state of a kind of yarn under action of high-speed airflow comprises: yarn feeding roller 1, yarn path 2, compressed air inlet 3, annular air-flow path 4, yarn sighting tube 5 and delivery roller 8.Yarn path 2 diameters are 10mm, and length is 300mm; Compressed air inlet 3 is a circular channel, diameter is 6mm, compressed air inlet 3 directly links to each other with annular air-flow path 4, the maximum dimension D 1 of annular air-flow path 4 is 20mm, minimum diameter D2 is identical with yarn path 2 diameters, wall designs for streamlined, highly is 250mm, thereby guarantees that air-flow forms tangential gas flow in yarn sighting tube 5 porch; Yarn sighting tube 5 is a glass tube, and diameter is than the big 6mm of yarn path 2 diameters, and length is 1000mm.
Embodiment 3: the device for testing hair feather state of a kind of yarn under action of high-speed airflow comprises: yarn feeding roller 1, yarn path 2, compressed air inlet 3, annular air-flow path 4, yarn sighting tube 5, delivery roller 8, ccd image acquisition system 9 and computer 10.Yarn path 2 diameters are 6mm, and length is 250mm; Compressed air inlet 3 is a circular channel, diameter is 4mm, compressed air inlet 3 directly links to each other with annular air-flow path 4, the maximum gauge of annular air-flow path 4 is 18mm, minimum diameter is identical with yarn path 2 diameters, wall designs for streamlined, highly is 200mm, thereby guarantees that air-flow forms tangential gas flow in yarn sighting tube 5 porch; Yarn sighting tube 5 is a glass tube, and diameter is than the big 4mm of yarn path 2 diameters, and length is 600mm.