CN2166144Y

CN2166144Y - Signal obtaining apparatus for breakage of cotton yarn

Info

Publication number: CN2166144Y
Application number: CN 93202537
Authority: CN
Inventors: 徐建新; 史博生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-01
Filing date: 1993-02-01
Publication date: 1994-05-25
Anticipated expiration: 2003-02-01

Abstract

The utility model relates to a signal obtaining apparatus for breakage of cotton yarn, which is used for signal detection and control of the breakage of various textile equipment. The utility model adopts the non-contact type induction process, namely an electric field is arranged below a detecting piece, when the detecting piece falls to the electric field to cause the voltage variation of the electric field when the cotton yarn is broken, and consequently the breakage signal is obtained. The utility model has the advantages of completely overcoming the abuses of easy oxidation of an electrical contact type detection device, the bad contact caused by the accumulation of the cotton dust and the flying cotton, the detection failure caused by that the light path of the photoelectric detection device is easy to be interfere disturbed by the cotton dust and fly cotton, etc., flexible action, reliability and simplicity, so the utility model can be used in various equipment, such as textile, to be used as the detection to the breakage signal, such as the cracked ends of warping machines, the signal detection of the cracked ends of warping machines, control, etc.

Description

Signal obtaining apparatus for breakage of cotton yarn

The utility model is to detect control technology about a kind of Yarn break, particularly about a kind of deriving means of Yarn break signal.

In textile industry, for guaranteeing carrying out smoothly and guaranteeing product quality of each procedure of weaving, the configuration apparatus for detection of breaking of yarn is very important on relevant devices, so that when taking place to break end, and equipment automatic stopping and help the operative employee and handle broken end.The present apparatus for detection of breaking of yarn that forms such as mechanical type, electric contact and photo-electric type are arranged that generally uses.Mechanical type is progressively replaced by electric contact and photo-electric type because of shortcomings such as action sensitivity is low, easy to wear are arranged.Electric contact detects as the cracked ends of warping machines, and when warp break end, menopause tablet tenesmus and contacting with the contact rod of its below caused circuit turn-on and obtains the cracked ends signal, forces the warping machines parking by control circuit thus.But because the influence of factors such as the cotton in addition dirt of the easy oxidation of contact rod, flyings accumulation, the phenomenon of loose contact appears in regular meeting, so that controls malfunctioning.Photo-electric type adopts the mode of photosignal to obtain the broken end signal, has overcome because of the loose contact failure phenomenon.But owing to the light emission, the light path of receiving system also can be subjected to the interference of cotton dirt, dust stratification, also often causes the malfunctioning of broken end signal detection, and the checkout gear manufacturing cost of photo-electric type is higher, it is also complicated to install, debug, keep in repair.

The purpose of this utility model just provides a kind of simple in structure, dependable performance, contactless Yarn break signal deriving means that applicability is wide.

The purpose of this utility model is to realize like this, Yarn break signal deriving means comprises detection lug and detects horse, its feature also is to comprise the electrode framework that is arranged on the detection lug below, the detecting electrode that is arranged on the electrode framework both sides, signal voltage generator and the inductance element that contains one group of main coil, two groups of secondary coils, the main coil of the output termination inductance element of signal voltage generator, first secondary coil of inductance element is connected with two detecting electrodes, and second secondary coil of inductance element is as the signal output part of Yarn break signal deriving means.

Operation principle according to the Yarn break signal deriving means of formation like this is: the signal voltage generator that is made of electronic circuit produces certain voltage and puts on respectively on two detecting electrodes, forms certain field intensity.During normality, because distance is bigger between two detecting electrodes, signal can not transmit and be in stable state.When yarn breakage, detection lug falls between two detecting electrodes.Because the medium effect of detection lug, make between two electrodes relative distance reduce to cause that field intensity changes makes two electrodes be in conducting state, induce the voltage signal of variation at last by induction coil, finish the purpose of obtaining the broken end signal.

For the ease of utilizing hyundai electronics to detect control, data management, can also obtain the quantity of signal with increase with detecting horse as third electrode.At this moment can do following improvement to aforesaid scheme: detection lug is partial to a certain electrode setting or the setting straggly of two electrodes height, by the media of detection lug, also can make third electrode induce the signal of telecommunication from nearer electrode.

The utility model is compared with traditional apparatus for detection of breaking of yarn to have: highly sensitive, good reliability has overcome fully that the detection that causes because of factors such as dust stratification, cotton dirt, flyings is malfunctioning, simple in structure, installation, use, characteristics such as easy to maintenance.

Below in conjunction with embodiment shown in the drawings, the utility model is described in further detail.

Fig. 1 is a broken end signal deriving means structural representation of the present utility model.

Fig. 2 is the electrical schematic diagram of the utility model broken end signal deriving means.

Fig. 3 is the electrode two end signal variable condition schematic diagrames of the utility model broken end signal deriving means.

Comprise that with reference to accompanying drawing 1.2. Yarn break signal deriving means detection lug 1. detects horse 2. frameworks 3. electrode A .B, signal voltage generator 4. contains the inductance element of 5. 2 groups of secondary coils 6.7 of one group of main coil.

The signal voltage that is produced by signal voltage generator 4. is added on the main coil 5 of inductance element, and the output D.E that the output of inductance element first secondary coil 6 is connected to two electrode A .B., second secondary coil 7 promptly can be used as the output of broken end signal.

So, yarn passes the hole 8 of entrying of detection lug 1, when yarn does not rupture, detection lug 1 is in the higher position, when yarn breakage, drop under the detection lug (dotted line position among the figure) on the detection lug frame 2, detecting electrode A.B is conducting state, make second secondary coil 7 induce the corresponding signal of telecommunication, thereby promptly finished the purpose of obtaining of broken end signal.

When not rupturing with reference to accompanying drawing 3. yarns, electrode A is in high potential with respect to the average voltage of electrode B, t ' when yarn breakage, and electrode A is in than electronegative potential A ' with respect to the average voltage of electrode B.With respect to first secondary coil, the output of second secondary coil remains on higher induced potential when yarn does not rupture, t ' when yarn breakage, and induced potential also changes thereupon, is in one than electronegative potential, thereby can obtain the signal that breaks end.

The utility model is contactless Yarn break signal supervisory instrument, highly sensitive, not influenced by various cotton dirt, dust, flyings etc., antijamming capability is strong, reliability is high, simple in structure, easy to maintenance, can be used as the broken end signal detection of various kinds of equipment such as weaving, as warping machines, loom etc.

Claims

1, a kind of Yarn break signal deriving means, comprise detection lug and detect horse, it is characterized in that: also comprise electrode framework, the detecting electrode that is arranged on the electrode framework both sides, signal voltage generator that is arranged on the detection lug below and the inductance element that contains one group of main coil, two groups of secondary coils, the main coil of the output termination inductance element of signal voltage generator, first secondary coil and two detecting electrodes of inductance element join, and second secondary coil of inductance element is as the signal output part of Yarn break signal deriving means.

2, Yarn break signal deriving means according to claim 1 is characterized in that: will detect horse as third electrode, and detection lug is partial to a certain detecting electrode setting.

3, according to the described Yarn break signal of claim 1. deriving means, it is characterized in that: will detect horse as third electrode, and with the setting straggly of two detecting electrodes height.