CN2391894Y

CN2391894Y - Device for detecting broken weft for tubular spinning machine

Info

Publication number: CN2391894Y
Application number: CN 99214209
Authority: CN
Inventors: 游青榆
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-17
Filing date: 1999-06-17
Publication date: 2000-08-16
Anticipated expiration: 2009-06-17

Abstract

The utility model relates to a device for detecting broken weft for circular looms, which comprises a catapult device and a sensing device, wherein, the catapult device is provided with a throwing-out device which is fixed with a magnet. The sensing device is arranged above the throwing-out trace of the throwing-out device, and the inner part is provided with a magnetic conductive element which is provided with induction field change owing to being wound by a coil. The utility model also comprises a signal converter and a processor, wherein, the signal converter can receive the sensing signals of the sensing device and can change the sensing signals into digital signals. A display unit is connected in outside of the processor, the digital signals can be sent to the display unit, and stop signal can be sent out after the digital signal reaching an upper limit value. The utility model has high accuracy of presetting power-off position.

Description

The weft yarn thread break detector of circle frame

The utility model relates to a kind of round frame, particularly relates to a kind of weft yarn thread break detector that improves the round frame of desired location correctness.

As shown in Figure 1, generally the sensing apparatus of circle frame detection weft yarn broken string mainly is to be provided with a draw bar 11 (being commonly called as the dragon palpus) on shuttle 10, draw bar 11 root activities are articulated with the device 12 of dishing out, the device 12 close end places of dishing out are provided with a magnet 13, can produce magnetic field, after the weft yarn perforation, because of inclining the device 12 of dishing out slightly, the active force of weft yarn leans against on the draw bar 11, behind the weft yarn broken string, the device 12 relative draw bars 11 of dishing out that magnet 13 is set are dished out, be provided with a sensing apparatus 14 above the track that the device 12 of dishing out is dished out, sensing apparatus 14 is provided with a magnetic conductive component, parallel wound coil in inside, coil one end ground connection and the input of another termination system control circuit, when the device 12 of dishing out was outwards dished out, magnet 13 made coil can cut the magnetic field that is produced by magnet 13 by the below of sensing apparatus 14, sensing apparatus 14 just can produce instantaneous induced voltage signal, voltage signal can make the relay outage by control loop after amplifier amplifies, use to stop motor operation.

As shown in Figure 2; the magnetic field of sensing apparatus 14 has sizable perception zone; as long as magnet 13 magnetic lines of force cut to the coil of sensing apparatus 14 through this zone; sensing apparatus 14 will produce induced voltage signal; the operator can be proofreaded the position of sensing apparatus 14; adjust its horizontal displacement (X) and height (Y); suitable perceived distance (D) is used the generation induced voltage to make sensing apparatus 14 and magnet 13 tools; as shown in Figure 3; the position of magnet 13 and induced voltage (magnetic field intensity) are the linear relationship of inverse ratio; that is to say; magnet 13 is littler with sensing apparatus 14 distances (D); the induced voltage that is produced (V) is just bigger; distance (D) is longer, and (V) is then little for induced voltage, and this induced voltage (V) is compared through a detecting circuit; after induced voltage (V) arrives predetermined extent (being application point O), will export stopping signal and cause shutdown by control loop.

But above-mentioned sensing apparatus 14 perception really breaks and makes and shut down action; but; but still there is following shortcoming in use and timing; when magnet 13 is dished out; whether its position has the magnetic line of force cut; the operator can't find out with naked eyes; therefore can't find out whether sensing apparatus 14 senses magnet 13 and dish out; and whether the position of dishing out can produce stopping signal; the operator also has no way of learning, therefore when doing to proofread and correct the position of sensing apparatus 14, can't precisely locate; so; under user mode, the device 12 of dishing out that is the state that do not break may pass through the perception zone because of the amplitude of oscillation that vibration is produced, and the device 12 of dishing out that causes improper shutdown or be the broken string state is not put to correct perceived position; use and shut down and can't produce stopping signal, so this correction position work meeting causes the operator to perplex greatly.

The utility model purpose is to provide a kind of weft yarn thread break detector that improves the round frame of setting the de-energized degree of accuracy.

For achieving the above object, the utility model is taked following measure:

The weft yarn thread break detector of round frame of the present utility model comprises:

One casting device and a sensing apparatus; Casting device is provided with the device of dishing out, and is installed with a magnet on the device of dishing out; Sensing apparatus is located at the dish out top place of track of the device of dishing out, and its inside is provided with one and is arranged with coil and has induced field and change to produce the magnetic conductive component of voltage signal; It is characterized in that:

Also comprise a signal adapter and a processor;

Signal adapter receives the perceptual signal of cutting apart sensing apparatus and forms the induction section, converts perceptual signal to data signal;

The processor outside is equipped with at least two display units that can show the sensing apparatus position and shut down induction, and data signal is fed to corresponding display unit, and presents stopping signal after data signal arrives higher limit.

Wherein: described processor is equipped with ten groups of display units altogether on sensing apparatus, and described display unit is made up of light emitting diode, and its 1st～5 group of display unit is green light signals, and the 6th～10 group of display unit is red signal.

Wherein: described processor connects establishes two groups of high and low accurate bit switches of adjusting the accurate position of processor processing data signal.

Be described in detail as follows below by most preferred embodiment and accompanying drawing feature as a result the utility model detector:

Description of drawings:

Fig. 1 is a combination schematic diagram of in the past justifying the frame broken thread detector.

Fig. 2 is the magnet in the checkout gear and the magnetic field position schematic diagram of sensing apparatus in the past.

Fig. 3 is the schematic diagram of induction of signal value and position relation in the past.

Fig. 4 is the combination schematic diagram of the utility model preferred embodiment.

Fig. 5 is the circuit diagram of the utility model preferred embodiment.

Fig. 6 is the schematic diagram of the induction of signal value and the position relation of the utility model preferred embodiment.

Fig. 7 is the first operating state schematic diagram of the utility model preferred embodiment.

Fig. 8 is the second operating state schematic diagram of the utility model preferred embodiment.

Shown in Fig. 4,5, round frame weft yarn thread break detector of the present utility model comprises a casting device 20, a sensing apparatus 30, a signal adapter (A/D Converter) 40 and one processor (CPU) 50.Casting device 20 is provided with the device 21 of dishing out, on the device 21 of dishing out and be installed with a magnet 22.

Sensing apparatus 30 is located at the dish out top place of track of the device 21 of dishing out, its inside is provided with the magnetic conductive component 31 of a winding coil 32, coil 32 can cut the magnetic line of force that is produced by magnet 22, uses producing voltage induced signal to an amplifier (OP) 33, to amplify output.

Signal adapter 40 receives the perceptual signal of sensing apparatus 30, this analog signal conversion can be become data signal also to export.

Processor 50 outsides are equipped with several display units 51; in the present embodiment; be equipped with ten groups of display units 51 altogether; display unit 51 is constituted by light emitting diode (LED); certainly also available LCD (LCD) or numeral show; after the data signal input is handled; can present in 51, ten groups of display units 51 of display unit corresponding according to the strong and weak degree of its signal with it; the 1st～5 group is green light signals; the 6th～10 group then is red signal, after data signal arrives specific higher limit, just can present stopping signal to a relay (Relay) 52; and control motor 53 shuts down, and uses shutdown.

As shown in Figure 6; in the present embodiment; after magnet 22 is dished out; when if the induced voltage that sensing apparatus 30 is produced arrives above position, the 6th rank (being application point O); red display unit 51 6th group or more corresponding with it will show, and export stopping signal simultaneously, and processor 50 more is equipped with two groups of high and low

accurate bit switches

54,55; by

push switch

54,55, can adjust the accurate position of demonstration that processor 50 processing digital signal are fed to display unit 51.

When the operator uses the utility model to proofread and correct the position of adjusting sensing apparatus 30, location status when making the device 21 outer pendulum of dishing out present broken string earlier, at this moment, the device 21 of dishing out should be distance sensing device 30 position farthest, if sensing apparatus 30 there is no the magnetic line of force that septum magnet 22 is produced, then display unit 51 will not have any demonstration (just can be not bright), if magnet 22 has been positioned at induction region, show that then 51 of unit can show its cresset.

As shown in Figure 7, the utility model is under the state that weft yarn does not break, its perceptual signal is the faintest, processor 50 can only be put the display unit 51 that opens the 1st～5 group of green, if surpassing the 5th group of display unit lights more than 51, represent sensing apparatus 30 near excessively, show that the position of present sensing apparatus 30 must outwards adjust apart from magnet 22.

As shown in Figure 8, behind the weft yarn broken string, the device 21 of dishing out is outwards shown, and processor 50 can be put the display unit 51 that opens the 6th～10 group of redness, if show that processor 50 is promptly to relay when being lower than the 6th group.52 cut off the power supply, and motor 53 is shut down, and shut down action to reach.

Therefore, when operating personnel adjust the position of sensing apparatus 30 in check and correction, having the cresset demonstration can provide operating personnel as the foundation of adjusting the position, that is to say, dishing out device 21 not under the broken string state, if cresset shows up to the 6th group of display unit more than 51, the expression hypotelorism must outwards be adjusted its position with sensing apparatus 30.Be under the broken string state at the device 21 of dishing out; if only showing, cresset arrives the 5th group of display unit below 51; then the position of sensing apparatus 30 is essential inwardly adjusts; demonstration by cresset; can allow operating personnel can find out that easily the position of sensing apparatus 30 should whither adjust; improving the correctness of position sensing device 30 positions, and, more can predict sensing apparatus 30 and whether can produce stopping signal in this position by the demonstration of cresset.

Among the embodiment of the present utility model, it is the integrated circuit of ADC0804 and PIC16C57 that signal adapter 40 and processor 50 adopt model respectively.

Compared with prior art, the utlity model has following effect:

In sum; because round frame parallel thread break detector of the present utility model; be to convert perceptual signal to data signal by signal adapter 40; make the swinging distance of the 21 pairs of sensing apparatus 30 of device of dishing out; may be partitioned into several induction sections; after being handled its data information by processor 50 again; its result is shown with this kind cresset by display unit 51; but make the operator can find out whether normal induction of sensing apparatus 30 corresponding magnet 22 positions easily; produce and shut down signal; and can be by the quantity of display lamp number; color; just can find out the sense state of current position at an easy rate and whether produce stopping signal; be more convenient for providing the operator to make the foundation that the position is adjusted, to improve the degree of accuracy of sensing apparatus 30 desired locations.

Claims

1. weft yarn thread break detector of justifying frame comprises:

Also comprise a signal adapter and a processor;

The processor outside is equipped with at least two display units that can show the sensing apparatus position and shut down induction.

2. the weft yarn thread break detector of round frame according to claim 1 is characterized in that:

Described processor is equipped with ten groups of display units altogether on sensing apparatus, and described display unit is made up of light emitting diode, and its 1st～5 group of display unit is green light, and the 6th～10 group of display unit is red light.

3. the weft yarn thread break detector of round frame according to claim 1 is characterized in that:

Described processor connects establishes two groups of high and low accurate bit switches.