CN2454757Y

CN2454757Y - Device for measuring section-size of filament and rod

Info

Publication number: CN2454757Y
Application number: CN 00267141
Authority: CN
Inventors: 金以丰; 陈苏民; 徐晋安; 徐新民
Original assignee: Shanxi University
Current assignee: Shanxi University
Priority date: 2000-12-13
Filing date: 2000-12-13
Publication date: 2001-10-17
Anticipated expiration: 2010-12-13

Abstract

The utility model relates to a measuring device uses optical method as a characteristic, more specifically belonging to a device used for measuring the cross section size of circular and abnormity threads and rods such as abnormity fiber. In the utility model, a manual bevel gear or a worm gear and worm screw device is used for measuring a machine frame and driving the machine frame to be rotated; a laser light source, a reflector, a CCD photoelectric sensor, a microprocessor and a display are fixed on the machine frame. The utility model not only can measure the cross section size of circular thread and rod objects, but also can measure the cross section size of abnormity threads and rods with very thin transparent diameter. The utility model can trace the torsion angle of measured objects and realize on-line measurement.

Description

Measure the device of silk, excellent cross sectional dimensions

It is the measurement mechanism of feature to adopt optical means that the utility model relates to a kind of, specifically a kind of measurement silk, rod, particularly shaped filaments, excellent device as the special-shaped optical fibre cross sectional dimensions.

The existing device of measuring silk, excellent cross sectional dimensions can only be measured the excellent object of silk of round section, and is to shaped filaments, rod, to the measurement of the very thin special-shaped optical fibre cross sectional dimensions of transparent diameter, then powerless especially.

When producing positive hexagon multi-core fiber, the hexagon charge bar is hung on the feeding rack with nickel filament, puts into electric furnace gradually.Softening drawing-down is come out of the stove to certain size.Because it is freely to hang, can't strictly fix each orientation that hangs; Because of the temperature difference excessive inside and outside the stove, the stress during wire drawing in the charge bar can make irregular movements such as it twists again.If use the fixation measuring system, then can't accurately measure size.So the device that optical measuring system is installed must be followed the tracks of the windup-degree of measured body, when regulating laser beam when making it to be parallel to relative two planes of six prismatic silks, rod, the numerical value minimum of measuring, this is only the accurate data that records.

The purpose of this utility model is to provide a kind of device of measuring silk, excellent cross sectional dimensions, this device can not only be measured the silk of circle, excellent object, and to the very thin special-shaped silk of transparent diameter, excellent cross sectional dimensions also energy measurement, and can follow the tracks of the windup-degree of measured body, realize the on-line measurement under the less time delay.

A kind of device of measuring silk, excellent cross sectional dimensions that the utility model provides, comprise and measure frame and electro-optical system, it is characterized in that the blue dish of described measurement frame usage is connected on the heat insulation steel plate of wire drawing machine, between ring flange and frame, bearing is housed, can make frame is axle with the measured object that vertically passes heat insulation steel plate circular hole and pull out, rotate in surface level about 30 degree, manual crowngear or worm and gear device that drive chassis is rotated also are separately fixed on heat insulation steel plate and the frame; Described electro-optical system is fixed on the frame: frame one side is fixed a laser diode and a laser beam expanding lens barrel, inwardly each fixes a plane mirror that becomes miter angle with level in both sides, frame upper end, the frame opposite side is fixed a CCD photoelectric sensor with light shield, make the light beam of lasing light emitter arrive the CCD photoelectric sensor through plane mirror, measured object, another catoptron, the CCD photoelectric sensor connects microprocessor and display.

Described CCD photoelectric sensor is made up of frosted glass, lens combination, diaphragm and CCD and driving thereof, outlet line plate, and laser image scioptics group on the frosted glass and diaphragm amplify also and be imaged on the CCD, has constituted to have the imaging system that optics amplifies.

Compared with prior art, the design of CCD photoelectric sensor in the utility model, can not only: the silk of circle, excellent object are measured, and to transparent very thin special-shaped silk, excellent cross sectional dimensions also energy measurement; Shelf design is moved in the utility model transfer, makes measurement mechanism can follow the tracks of the windup-degree of measured body, has realized approximate on-line measurement.

The contrast accompanying drawing is described further the utility model below:

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the CCD photoelectric sensor synoptic diagram in the utility model.

Accompanying drawing 3 is microprocessor program process flow diagrams of the present utility model.

1 is the heat insulation steel plate, the 2nd that is fixed on the wire drawing machine among the figure, measures frame, with ring flange 3 the two is linked together, between this ring flange 3 and the frame 2 bearing is housed, the measured object that frame 2 is pulled out with the circular hole that vertically passes heat insulation steel plate 1 is an axle, rotate in surface level about 30 degree, the manual worm gear endless screw apparatus 4 that drive chassis is rotated also is separately fixed on steel plate 1 and the frame 2.

The principle of work of measuring the optical system of installing on the frame is as follows: the parts 5 on the frame are semiconductor laser diode and stabilized voltage supply thereof.Adjust power source voltage and electric current and can obtain suitable laser intensity.Laser shines on the special-shaped optical fibre through plane mirror 7 by the laser beam of beam expanding lens 6 outputs, reflexes in the CCD photoelectric sensor 9 through another catoptron 8 again.

The structure of CCD photoelectric sensor 9 is as shown in Figure 2: 10 is light shields among the figure; The 11st, accept laser beam and the frosted glass of imaging; 12 and 13 is secondary imaging lens combination and diaphragm; It amplifies several times again with the laser image on the frosted glass, and imaging has constituted the imaging system with optics amplification on CCD.The 14th, annexes such as CCD and driving thereof, outlet line plate.The design of this CCD photoelectric sensor has realized 0.5 measurement to number mm size object is also made system that the requirement of CCD is reduced, thereby reduces cost.

Above optical system is fixed, and can once mix up, and need not anyly adjust in the production.Thereby only require that the workman rotates frame aborning slightly, aim at laser direction.So the utility model is the equipment of optical, mechanical and electronic integration, using method is simple, helps production management.

Parts 15 are by microprocessor integrated circuit and peripheral logical circuit, microprocessor and display that Analogical Electronics such as the shaping amplification of ccd output signal are formed.Seven segment digital tubes is contained in outside these parts, observes size and variation thereof easily for the workman.

The concise and to the point program flow diagram of microprocessor, as shown in Figure 3: the N among the figure is the data number of each deal with data; " time to " of below be meant measuring period.

The embodiment that the utility model is measured six rib multi-core fibers: when the measured body size was about 1 millimeter, getting optical magnification was 2; The sensitivity of CCD is 10 volts/lux second, 14 microns of resolution.Result: 10 microns of absolute errors, relative error 1%.When if the resolution of CCD is 7 microns, then error can be littler.

Claims

1, a kind of device of measuring silk, excellent cross sectional dimensions comprises and measures frame (2) and electro-optical system, it is characterized in that described measurement frame (2) has comprised the device (4) that is used for the drive chassis rotation; Described electro-optical system is fixed on the frame (2), fix a laser diode (5) and a laser beam expanding lens barrel (6) in frame (2) one sides, inwardly each fixes a plane mirror (7,8) that becomes miter angle with level in both sides, frame upper end, and the frame opposite side is fixed a CCD photoelectric sensor (9) with light shield.

2,, it is characterized in that described CCD photoelectric sensor has comprised frosted glass (11), lens combination (12), diaphragm (13) and the CCD device that constitutes optics amplification imaging system according to the described a kind of device of measuring silk, excellent cross sectional dimensions of claim 1.

3, according to the described a kind of device of measuring silk, excellent cross sectional dimensions of claim 1, it is characterized in that the device (4) that described drive chassis is rotated is manual crowngear or worm and gear device.