SU1435973A1 - Device for calibrating tape tension meter - Google Patents

Abstract

The invention relates to a load measuring technique and allows for improved calibration accuracy. Tape 3, having passed through the impregnation bath 2, is pulled by the receiving device 8 at an operating Speed through the device nodes. The tension of the belt 3 is established by the regulator 4 according to the indications of the calibrated meter 7. According to the protractor 11, the angle is formed by the moving belt 3 and the horizontal. A swivel disk 14 is fastened on the movable rack 12, on which a metal strip 15 is fixed at one end and connected to an exemplary tensile dynamometer 16 at the other end. On different sides from the axis of rotation of the disk 14, there are paired tape conductors 22, 23, one pair of which interacts with additional model dynamometers 28, 29. 4 sludge. with s

Description

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The invention relates to an SSHGRGS measurement technique, in particular, devices for calibration, calibration and calibration of tension meters of impregnated tapes of yarn moving with varying winding angles in production lines for manufacturing products of complex shapes using the method from a skein to a mandrel.

The purpose of the invention is to improve the calibration accuracy.

FIG. 1 is a schematic of a device for calibrating a tape tension meter; in fig. 2 is a diagram of the device of the mobile stand; FIG. 3 is a section A-A in FIG. 2, FIG. 4, a design diagram of the device6

On a horizontal base 1, an impregnation bath 2 is installed, into which a formed belt 3 enters from a spool, a tension regulator 4 of the impregnated tape, controlled from a handwheel 5, a bracket 6 with a calibrated gauge 7, a receiving unit 8 with an electric motor 9, directed a roller 10, a protractor 11 and a movable stand 12 on which the calibration unit is mounted.

On the small protrusion of the movable column 12, an axis 13, is mounted on a cantilever, on the roll supports of which the rotary disk 14 is fixed. On the rotary disk 14, a thin metal strip 15 is fixed at one point at the point g, the second end of which is fixed to: the lower gripper of the first model dynamometer 16 . wives The exemplary dynamometer 16 is suspended from the slider of the loading member 17 mounted on the large projection 18 of the movable rack 12. The loading of the loading member 17 is controlled by the helm 19. The vertical plane of symmetry of the large protrusion 18 is tangential to the disk 14. In the diametral plane of the disk 14 mounted in supports rolling at an equal distance from the center of the disk are two pairs of tape guides, each of which consists of axes 20 and 21, on which the slotted ends of which are rigidly mounted tape guides 22 and 23 on one side of the disc ka and tape guides 24 and 25 on the other side of the disk. The tape conductors 22 and 23 interact with the moving belt 3, and the tape conductors 24 and 25 interact through thin metal strips 26 and 27

,

15 20 25

ZO, 35

40

45

50

55

with a second exemplary tensile dynamometer 28 and a third exemplary tensile dynamometer, respectively. Bands 26 and 27 are fixed on ribbon guides 24 and 25 at points c and d cooTBTTTTBetfflo. The rotary disk 14 in the vicinity of the point e of its vertical axis of symmetry ef is provided with a scale device 30, and a small sight device 31 is mounted on the small protrusion of the movable rack 12. The rotary disk 14 is equipped with a regulator 32 of the center of gravity.

The device works in the following way.

When the motor 9 is turned on, the receiving unit 8 pulls the belt 3 with the operating speed V through the impregnation bath 2, the tension controller 4, the calibrated meter 7, the rotary disk tape guides 23 and 22, and the guide bar 12 is set by the operator so that the angle / J, formed by the moving belt and the horizontal, takes on the protractor 11 one of the values in the range of 10-80 °, for example 30 °. The wheel 5 of the tension controller 4 according to the indications of the calibrated gauge 7 sets the tension in the tape 3 in the section a-b equal to approximately 20% of the measuring range of the gauge 7 tension. The steering wheel 19 of the loading element 17 is set using the scale 30, vertical ef of the rotary disk 14 opposite the sight line 1 of the sight device 31. The first, second, third model tensile dynamometers and calibrated gauges are read out and recorded in the table of results of readings.

Calculate the actual value of the tension S in the cross section a-b according to the formula

h p 1 2g + а sin (i where T is the load on the first exemplary dynamometer, kgf; T, is the load on the second exemplary dynamometer, kgf; Tj is the load on the third exemplary dynamometer, kgf; R is the turning disk radius, mm; g radius of tape guides interacting with a moving impregnated calibration tape, mm;

And - the radius of the ribbon guides,

interacting through thin steel strips with the second and third exemplary tensile dynamometers, mm; a - half of the inter-axle distance of the shafts that do not exist in pairs of fixed pairs of ribbon conductors, mm; 10 - the angle of inclination of the tape at the output of the calibrated gauge to the horizontal.

The mathematical dependence (1) of Poen by solving the system of equations, compiled according to the calculation scheme (Fig. 3):

15

S, P

- S, r

S, r Si.r

TZD

(2)

G + a sinp

Wheel 5 of the tension adjuster 4 sets the tension in the belt 3 in section a-b according to the indications of the tension gauge 7 to be calibrated to approximately 40, 60 and 80% of the measuring range: meter 7 and each time S is determined as described.

Then, the angle of ft, for example, is repeated.

In this way, the actual values of the tensions in the moving impregnated belt are measured and calculated which form the basis for calculating the errors of the tension meter 7, which makes it possible to increase the calibration accuracy of the meter and the reliability of its results.

is set equal to / j 45 ° and measurement

Claims (1)

Invention Formula A device for calibrating a belt tension meter, containing a calibrated belt tension meter installed on the belt movement, mounted on a bracket, a calibration unit, pointing to a rotating roller mounted for rotation, and an electrically driven receiving unit, the calibration block containing a loading element and an exemplary dynamometer, characterized in that, in order to improve the calibration accuracy, the installed along the belt movement are inserted before and after the calibrated belt tension meter A tension torch and a tape angle meter, and a movable stand, a swivel disk with a vertical reamer, four tape guides and two additional model dynamometers - the guide roller, the loading element and the rotary disk are fixed on the movable stand, the fiber conductors are fixed in pairs with the possibility of rotation on the rotary disk on opposite sides of its axis of rotation, the first dynamometer is connected to the loading element and using a metal strip with a rotating disk, and the other two dynamometers are mounted on a rotating disk and, with the help of metal bands, are connected respectively with two tape conductors from different pairs, with two other tape conductor interact with the tape. 28 26 g FIG g one 12 23 21 t 18 (Rig.3