SU1362512A1 - Photoelectric monitoring and sorting apparatus - Google Patents

Abstract

The invention relates to control and sorting devices, in particular to devices for sorting rings, and makes it possible to increase the accuracy of sorting by implementing tolerance control of sorting parameters. The device consists of a light source, a condenser, a photosensitive element located on the same optical axis, and an actuator, a diaphragm, an additional condenser, a measuring unit, a digital device, and an adjustment unit for tolerance, the diaphragm and the additional condenser located between them and the photosensitive element. the optical axis, and the electrical output of the photosensitive element is connected to the input of the measuring unit, the output of the measuring unit is connected to the input of the digital device, the pair the allele outputs of which are connected to the device configuration scheme for admission, a relay is connected to the output of the latter, controlling the actuator and the inclined supply tray. 1 з, п, ф-л, 2 Il. § SL

Description

one

The invention relates to sorting devices, in particular to devices for sorting flat products such as rings by internal diameter.

The purpose of the invention is to increase the sorting accuracy by performing a tolerance control of the sorting parameters.

FIG. 1 shows a structural diagram of a photoelectric monitoring and sorting device; Figure 2 is an electrical setup diagram for admission.

The device consists of a source of light 1, a condenser 2, a photosensitive element 3 located on the same optical axis and an actuator 4, a diaphragm 5, an additional condenser 6, a signal processing circuit including a converter containing measurement unit 7 and digital device 8, unit 9 settings for tolerance and relay 10, as well as the power supply lot.a 11 with detail 1

The device configuration for tolerance consists of the first 13 and second 14 decoders, the inputs of which are connected to the parallel outputs in the binary-decimal code of the digital device 8, and the outputs to the inputs of the nodes specifying the decoder tolerances 15 units and 16. tenths, the outputs of which are first on the fourth common bus connected to the inputs from inverters 17-20, the outputs of which are connected in pairs with the inputs of the first 21 and second 22 additional logical elements And, the outputs of the last connected respectively with the first and second inputs of the logical element 23 IDN, the output of which includes a relay 10 controlling the actuator 44

The device works as follows.

When the component 11 moves along the inclination of the supply tray 12 at the moment when its axis coincides with the optical axis of the condensers 2 and 6, the internal diameter of the part is measured using a photosensitive element 3, the electrical signal of which is proportional to the area of the internal diameter of the part. Moreover, due to the presence of diaphragms 5 and a condenser 6, a spot is projected on the photosensitive element, the size of which

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does not vary with the diameter of the part being monitored, but only the degree of illumination changes. The latter circumstance is very important for reducing the error in the measurement, since the photosensitive layer of the photocells is usually unevenly applied, which is the reason for the appearance of an additional error in the case if the spot diameter is dependent on the magnitude of the change in diameter. Measurement unit 7 converts an electrical signal of a photosensitive element into a voltage equal in magnitude to the diameter being measured.

At the same time, the voltage from a digital device in a binary-decimal code is bitwise (unit of units and unit of tenths) is fed to the inputs of unit 9 for setting the device for admission, through which the set of the size and tolerance of the part being monitored is carried out. The scheme provides adjustment for tolerance in the range of 0.1-0.5 mm. So, for example, when testing a part with an internal digester of 7.5 mm and a tolerance of +0.2 mm, the following buttons must be pressed: on node 15 (unit level) S7 button, on station 16 node (tenth buttons Nos. S 7; S 6, s 5, s 4, S g, S 2, i.e. corresponding to the tolerance field (7.7, 7.6, 7.5, 7.4, 7.3,. 7, 2 mm. When inspecting a part, for example, with an inner diameter of 7.9 mm and a tolerance field j; 0.2 mm, buttons S7 and SB must be pressed on node 15, and on node 16, respectively, No. S, SO, s 9 , S 8, S 7, i.e. the buttons corresponding to the tolerance field (8.1, 8.0, 7.9, 7.8, 7.7 mm), etc.

If the inner diameter of the part being monitored is in the tolerance field, the signals O from the outputs of the decoders 13 and 14, corresponding to pressing the button, O come in from the outputs of the decoders 13 and 14, the output of which, respectively, bu:; signals 1,. relay 10 does not work and part 12

will be held in good. I

At the exit of the inner diameter

the controlled part beyond the tolerance field to one of the inputs of each of the logic elements 21 and 22 And a signal O is received, and therefore, at the output of the logic element 23 OR relay 10 will operate and the part will pass

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in marriage. The diodes in block 9 device settings for tolerance are used to isolate the decoders to the outputs.

In this way, parts are scored according to the internal diameter of both rejects + and rejects - while simultaneously measuring the diameter, which leads to an increase in the accuracy of control and expansion of the functional capabilities of the device.

Claims (2)

1. A photoelectric control-sorting device containing a light source, a condenser and a photodetector, including a photosensitive element located on the same optical axis, a signal processing circuit and an actuating mechanism, characterized in that, in order to improve the sorting accuracy by performing tolerance-controlled parameters the photoreceiver includes a diaphragm and an additional condenser installed in front of the photosensitive element successively in the direction of the beam EMA signal processing comprises successively so124 a single converter, a setting unit for tolerance and a control relay, output connected to the input of the actuator, with the output of the sensing element connected to the input of the converter. 2. The device according to claim 1, which is amplified by the fact that the tolerance tuning block contains the decoder tolerance setting nodes, diodes, NOT elements, AND elements and the OR element, whose output is the output of the tolerance tuning unit, while the decoder inputs are the inputs of the tuning unit to the tolerance, and the outputs of the first decoder are connected via the first diodes to the corresponding inputs of the first tolerance setting node, the outputs of which are NOT connected to the first inputs of the corresponding AND elements through the first elements, while the outputs of the second descrambler are The second diodes are connected to the corresponding inputs of the second tolerance setting node, whose outputs through the second elements are NOT connected to the second inputs of the corresponding AND elements and the outputs connected to the OR element inputs. . Editor O.Spesyvyh Ph.2 Compiled by E. Khachaturov Tehred M. Didyk Correct, op M. Demchik Order 6335/6 Circulation 539Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5  Production and printing company, Uzhgorod, st. Project, 4