SU394745A1 - DEVICE FOR WASHING OPTICAL DETAILS - Google Patents

Description

one

Isab (retention is related to the technological equipment for the production of optical parts. In the manufacturing process, optical parts are glued to various devices with special resin pom ples, and the treated surfaces are coated with a protective varnish during transmission to subsequent operations. The process ends by washing the optical parts in a solvent.

Apparatus for flushing optical components are known, comprising successively installed chambers with shower devices, sluice gates between chambers, a mechanism for moving parts cassettes and a solvent regenerator.

A disadvantage of the known devices is a reduction in the carry-over of the solute from the part during the washing process due to an increase in the concentration of this substance in the solvent. As a result, the quality of the washing of the parts is impaired, which leads to a sharp increase in the washing time. To maintain the required flushing rate, the solvent must be frequently changed in the installation, increasing the consumption of expensive solvent.

In order to improve the quality of washing as a result of the solvent being consumed in the proposed device, the bathrooms are space2.

The cameras are sequentially communicated with each of the siphon overflow tubes, the installation level of which is consistently increased in the direction of movement of the parts.

The drawing shows the described device.

The device has three chambers 1, 2 and 3, separated from each other and from the external environment by sluice gates 4. In the upper part of each of the chambers /, 2 and 3, shower devices 5 are installed for jet washing of optical parts. Node shower device. They are cassettes 6, carrying washed optical parts. To move the cassettes, to load and unload parts, use a pushing device with a pneumatic drive (not shown). Chambers I, 2, and 5, and below the baths 7, 8, and I, into which solvent comes from the shower devices 5 after washing the optical parts in the cassettes 6. Nirkul ci of the solvent within each of the chambers is provided by a pump (not shown) and by pipelines connecting the pump to the shower unit 5 and to the bathroom. Baths 7, 8 and 9 are interconnected by overflow tubes 10 and 11, which are installed at different levels and form a cascade. To remove the evaporator from the leakage device, a sump 12 is connected to the exhaust ventilation system. The solvent regenerator consists of a tank accumulator 13, an evaporator 14, a condenser 15. A tank - a device 13 is connected to a bath 9 with an overflow pipe 16 and with a evaporator a valve 17 and a pipe 18. In addition, the evaporator 14 has a level gauge 19 and a heater 20. Evaporator 14 is connected by a pipe 21 to the upper part of the coil 22 in a condenser 15, the lower part of which communicates with the tub 7 by a pipe 23. Drain valves 24 are provided for cleaning the device.

The device works as follows.

Vains 7, 8, and 9 are filled with solvent, tank-tip, 13, and evaporator 14. In heater 20, evaporator 14 includes hot water circulation, and in condenser 15, cold water. The degree of opening of the valve 17 is set in accordance with the capacity of the regenerator so that the level of the level gauge is in the middle position. Pumps are activated to ensure the operation of the shower devices 5. In the process of washing the parts, the cassette 6 is moved indirectly in the direction from the chamber / to the chamber 3. Moreover, each cartridge 6 is sequentially washed in chambers 1 and 2, and then in the chamber 3. In the process of moving the pump cassettes the shut-off state and the sluice gates 4 are open. Parts are loaded into cassettes 6 before camera 1, and unloading after camera 3. During the steady-state operation of the device for washing optical components, the solvent is circulated as follows. In the chamber / most of the lacquers and cmol are being flushed from the optical components, therefore in the bath 9 their concentration in the solvent will be the highest. In chamber 3, final washing of the optical parts is carried out. Here, the concentration of dissolved lacquers and resins in the bath 7 itself is because the bath 7 through pipeline 23 is constantly replenished with a pereiiepnpoBan solvent, and the solvent is polluted only because the received optical parts have already been washed twice with B kagmers and 2. Due to the transfer of the solvent 7 into the bath 8 and further into the bath 9, in the bath 8 the average value of the concentration of varnishes and resins is set in relation to baths 7 and 9. Since} there is a counter-movement of the optical parts in the cassettes and solvent about the tank cascade, the preliminary washing operation is carried out with already contaminated solvent, and the final washing is performed with pure solvent. This reduces the overall consumption of solvent in the device, and at the same solvent consumption improves the quality of washing parts and reduces the washing time.

PROPOSITION; i 3 obrete and p

A device for washing optical components, containing successively installed chambers with shower devices,

sluice gates between chambers, a mechanism for moving the cassettes with parts and a solvent regenerator, characterized in that, in order to improve the quality of the washing with the economical consumption of the solvent,

The bath spaces of the chambers are successively connected to each other by siphon overflow pipes, the installation level of which is successively increased in the direction of movement of the parts. U .. ™. J