SU762063A1 - Sorting apparatus - Google Patents

Description

The invention relates to electrical engineering and can be used to classify semiconductor devices, mainly diodes, by measuring their electrical parameters, logical processing of measurement results and automatic layout of devices in receiving bins corresponding to the classification group.

Known devices, the observant control and measurement units, the instrument feed mechanism and the pick-up assembly of the sorted parts into corresponding bunkers [1].

The disadvantages of the known devices are their low productivity and low reliability.

The closest to the invention according to 1 technical entity is a device for sorting, containing control and measurement units, an instrument feed mechanism and a layout assembly, made in the form of a transporting disk with traps evenly spaced around its circumference, each of which is equipped with a movable bottom overlying the exit window [ 2].

2

The disadvantages of this device are also his, low performance and reliability.

The purpose of the invention is to improve performance and reliability.

⁵ The goal is achieved by the fact that in a known device containing control and measurement units, an instrument feeding mechanism, a pickup assembly, made in the form of a transporting disk with sequentially arranged traps, each of which is equipped with a movable bottom that covers the exit window, the instrument feeding mechanism is equipped with intermediate guide tank with a running window and a movable bottom, with the output

5, the window is partially blocked by a movable bottom, kinematically connected with the pickup unit, and the movable bottom of the traps is made in the form of a lever with a ferromagnetic element, with the output window of the traps partially re, ₀ covered by a movable lever.

FIG. 1 shows constructive

device layout; in fig. 2 - intermediate guide tank, general view;

in fig. 3 - a trap, a general view.

762063

3

The device contains a vibrating hopper 1, a device feeding mechanism 2, a measuring unit 3, a control unit 4, an intermediate guide tank 5, storage hoppers 6, a pick-up unit and a drive (the positions of the latter are not marked in the figures). Intermediate guide tank 5 (see Fig. 2) has a uniformly narrowed downward form from the inside, for example, conical, and contains a movable bottom 7, which is mounted on axis 8 and is spring-loaded 9. The intermediate guide tank 5 is located above the layout assembly, which is made in the form mounted on the shaft 10 of the transporting disc 11. On the last circumference, traps 12 are evenly spaced, each of which has a uniformly narrowed downward shape from the inside (see Fig. 3), for example, conical, and is equipped with a movable lever 13. This one The syringe lever 13 is mounted on the axis 14 and is spring loaded by the spring 15. On the base 16 of the trap 12, an emphasis 17 is mounted, and the movable lever 13 is provided with a ferromagnetic element 18 interacting with a control electromagnet 19. The latter is placed on the lateral surface of the disk 20 fixed fixedly coaxially with the ferromagnetic element 18. The coils of the control electromagnets 19 are connected to the corresponding outputs of the control unit 4. The storage bins 6 are located under the transporting disk 11 coaxially with its traps 12. The drive of the device is made uniform, operates from the electric motor 21 and consists of a gearbox 22, a gear train 23 and a camshaft 24.

The device works as follows.

Instruments are loaded into vibrobunker 1, which delivers instruments oriented in a certain way. The device feed mechanism 2 supplies the devices to the measurement unit 3, where the device is connected to the measurement contacts (not shown in the figures) and its parameters are measured. The signals of the measured parameters from the output of the measurement unit 3 are fed to the input of the control unit 4, which stores them. The device is then released from the measurement unit 3 and oriented in a certain way into the intermediate guide tank 5, which, in turn, orients the device in an upright position. At this moment, the next of the traps 12 of the transporting disk 11 fits under the intermediate guide tank 5. Before the axis of this trap 12 coincides with the axis of the intermediate guide tank 5, the moving bottom 7 of the latter begins to open, and when the axes coincide, it opens, freeing the device.

The last in the oriented vertical position is unloaded into the trap 12

transporting disk 11, which, without interrupting its movement, delivers the device to the layout. After unloading the device from the intermediate guide tank 5, the spring 9 returns the movable bottom 7 5 to its original position. The next device in order is discharged from the intermediate guide tank 5 to the next

trap 12 and so on

At that moment, when the trap unit 12 passes control elekt10 romagnita 19 corresponding to the measured group classification, on a signal from the control unit 4 closes the power circuit controlling the electromagnet 19. The pulse width supplied from the control unit 4 to control electromagnet 19, ^'15 is determined by the time that the trap 12 passes through the magnetic field of the controlling electromagnet 19. The ferromagnetic element 18 of the movable lever 13 of the trap 12 is attracted to the core of the controlling electromagnet 19. Pr and that the tool is released from the trap 12 and oriented in the vertical position is unloaded into the corresponding storage bin 6. The stop 17 restricts the movement of the moving lever 13 of the trap 12. At the same time

²⁵ between the ferromagnetic element 18 of the movable lever 13 and the control electromagnet 19 there remains a minimum gap sufficient for continuous rotation of the transporting disk 11. After removing the pulse from the control electromagnet 19, the spring 15 returns the movable lever 13 to its original position. The transporting disk 11 continues its rotation, carrying out continuous unloading of devices

in storage bins 6.

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The device has high reliability and provides high performance. The most appropriate use of the device in the classification of a large number of groups.

Claims (1)

Claim A device for sorting, mainly semiconductor devices, containing control and measurement units, an instrument feed mechanism, a pickup assembly, made in the form of a transporting disk with successively located traps, each of which is equipped with a movable bottom that overlaps the output window ⁵⁰ , characterized in that In order to improve performance and reliability, the instrument feed mechanism is equipped with an intermediate guide tank with an exit window and a movable bottom, and the outlet window is partially covered with movable bottom, kinematically connected with the layout node, and the movable bottom of the traps is made in the form of a lever with a ferromagnetic element 762063 cop, and the output window of the traps is partially blocked by a movable lever.