SU26066A1 - Apparatus for rejection and selection of sections of capillary thermometric tubes - Google Patents

Description

The invention relates to apparatus for rejection and selection of sections of Caylr thermometric tubes of a primitive cross section for signs of penetration of prnzm, internal winding of the internal channel or its contamination, used to control the apparatus of photocells connected to the cathode amplifier.

In the proposed apparatus, the photocells and the optical system belonging to them are mounted on a caliper moved by an electric motor parallel to the capillary tube under test and connected to a relay that automatically switches off the motor when the photoelectric cells pass by the defective places, which stops the second relay; moving a file over the tube to heat up or mark, and turn on a second electric motor that rotates the test tube, during which time the lamp illuminating the photocell turns on with a sliding contact.

In FIG. 1 is a schematic front view of an apparatus for rejecting and selecting capillary sections.

thermometric tubes; FIG. 2 is the same, side view, FIG. 3 - diagram of the electrical network of the device; FIG. 4 - thermometer tube cross section; FIG. 5 is a view of the sliding contact in front.

The prismatic capillaries used in the manufacture of maximum thermometers (Fig. 4), having a reflective enamel strip 9 and an internal elliptical cross section of the capillary channel 10, should not have an overlap of either the prism itself or the inner channel in the area cut to produce the thermometer above the set admission.

To perform the test, the capillary tube 7 is fixed with one end, the enamel strip up, into the cartridge 2, which is driven into slow rotational motion by the electric motor 3 by means of a worm gear 1. A caliper 23 with an optical system 5 installed on it, consisting of an electric lamp, a capacitor 6, throwing a light beam on the capillary underneath and a capacitor 24, which drops from the same tube, moves over the tube along its length by means of an electric motor 4 and a toothed rack.

lamp with a mirror 25 light beam on the side surface of the capillary.

On the caliper under the capillary and on the tripod 7 supporting the optical system on the side of the capillary, two photocells 11 and 26 are placed together with the system, which, when illuminated, begin to conduct electric current amplified by the cathode lamp 12.

The current amplified by the cathode lamp is supplied to the relay 14, which, when there is no current in it, closes the circuit of the electric motor 4, which gives translational motion to the caliper 23 carrying the tripod 7 with the optical system, as well as photocells

/; And 26.

When the photocells are illuminated / / or 26, the relay 14 opens the circuit of the electric motor 4 and closes the circuit of the electric motor 5, which gives a slow rotational motion of the capillary tube /. At the moment after the opening of the motor circuit 4 by means of contacts 15 and before the circuit of motor 3 by means of contacts 17, the relay for a short time closes the circuit of solenoid 18, which draws a metal rod connected to the file 20, filler capillary p, or with a pen making a mark on the capillary. Photocells are protected from exposure to extraneous light sources by a case with shutters that move when the slider moves (not shown in the diagram).

To activate the apparatus, lamp 5 is ignited and electrical circuits 30, 33 and 34 are turned on. The capillary tube / is fixed in the cartridge 2 with the enamel strip 9 upwards in the position shown in FIG. 4, so that the light beam of the capacitor 6 is delayed by a strip and does not fall on the lower photocell; then, if the internal channel / is correctly positioned ((the light beam of the capacitor 24, refracted by the capillary prism 27 (Fig. 3), should not n macTt) to the photocell 26. By closing ofinn $ 2 by the optical 4 electric motor; C1 | : Subject and photoattacks are given post movement along the capillary. In the case of an overlap (otm) venn from the longitudinal axis coming out of the established tolerance, the entire cap (illustra or internal channel JO,

Light beams, pre-adjusted to a certain wound angle, by removing or bringing the capacitor focus to the capillary with micrometer screws 8, fall on photocells 7 / or 26

When illuminated, photocells begin to transmit a current, which, after being amplified by a cathode lamp, is directed to relay M.

Relay 14 opens the circuit of the electric motor 4 and thereby stops the forward movement of the system during the capillary. Following this, the relay sends a current to the J8 relay, scoring or marking the capgml and then the relay closes the circuit of the electric motor 3, which aligns the capillary p and sets it to its original position at which the light beams do not fall on the photocells. With the onset of this moment, the action of the photocells is turned off and the current is no longer applied to the relay, as a result of which the relay opens the circuit of the electric motor 3, which stops the rotational motion of the capillary, cuts or marks the capillary a second time along the same circumference as the first time, and Finally, it includes an electric motor 4 - translational motion of the system, which continues the interrupted movement along the capillary until the capillary re-emerges from the established limit of twisting. The sliding contact 25 (Fig. 1, 5), mounted on the transmission of the motor. 5, serves to light the bulb 28, the light from which, falling on the photocell 7 /, at the time of turning the capillary, with an enamel strip down, does not allow the capillary to stop in the reverse position during rotation, since in this position of the capillary, perpendicular to the internal channel JO, the refracted light beam cannot reach the photocell 25, in view of the location of the channel 10 ks in the center of rotation of the capillary.

Thus, the device automatically cuts or marks the test capillary at those points at which the wrinkling, of the entire capillary or, of the inner scum, exceeds the pre-established limits. The same apparatus, with the corresponding switching on of the side photocell 26 and the relay, can produce automatic rejection and selection of not only prismatic, but also round capillaries on the basis of contamination inside; he was poked by a capillary.

The subject matter of the invention.

Claims (2)

1. An apparatus for rejection and selection of sections of capillary thermometric tubes of prismatic cross section according to signs of prisms wounding, internal channel wounding or its contamination with application of photo cells connected to a cathode amplifier to control the device; The fact that photo cells / 7 and 26 connected in parallel to each other, mounted together with optical systems 6 and 24 belonging to them, on a support 23 moved by electric motor 4 parallel to the capillary tube under test 7, are connected through cathodeHulfi amplifier / 2 to relay 14, which serves when passing photocells past defective places of tube 7 to turn off electric motor 4, to excite relay 18 moving over tube 7 file 20 in order to cut it or to mark it and to start motor 3 rotating NIKOM tested thermometer tube 7. 2. In the apparatus of claim 1, in order to ensure full rotation of the capillary tube around its axis, use on the electric motor 3 a sliding contact 29, used to turn on the rotation of the tube 7 of the electric lamp 28 illuminating the photocell 77,    (() i M. L, J i / afig. 3 -If-:  fdd .g fig 5