SU846599A1 - Unit for washing parts - Google Patents

Description

(54) DEVICE FOR WASHING DETAILS

The invention relates to electroplating and can be used for washing with washing liquid of parts, for example printed circuit boards, from electrolyte residues during their galvanochemical treatment.

A device for washing products containing a bath, a pump with a piping system and nozzle nozzles | jl.

In this device, the washing of products is carried out by the jet method, while the upper hinge frame of the bath c. the nozzles flips when the product is lowered into the bath. However, the process of washing parts in it is not optimal, since it is produced by the same non-flowing detergent solution: soils, tightly bound to the surface of the part, are soaked, partially peeled off and settled to the bottom of the bath, and partially float to the surface of the solution.

It is also known a device for washing parts, containing a bath with. drain hole, suspension bar and drive mechanism p.

This device, improving the quality of hard-to-reach cavities of parts of complex configuration

due to rotation of the suspension relative to the horizontal axis at any number of revolutions, it is not intended to embed galvanochemical machining of parts into the auto-operating line, in which suspensions with workpieces are rigidly attached to non-rotatable rods that can be freely hooked on V-traps. In addition, the process

The 10 sinks are imperfect, since the sink is carried out in the same detergent solution, and the contaminants are constantly in contact with the washed part. Their removal in this device

15 is produced by gradually raising the suspension and its rotation. In this case, the details like rinse in a washing liquid ..

The purpose of the invention is to increase the efficiency of washing details of a complex configuration by providing an upward spiral flow of washing fluid.

The goal is achieved by the fact that the bath is made in the form

Claims (2)

25 concentrically mounted vertical cylinders, at the bottom of the inner one of which the impeller is fixed, and overflow holes are made around the perimeter of the upper surface. When this drain hole is made along the axis of the outer cylinder. The drawing shows the device, a general view. The device comprises a bath made in the form of a cylinder 1, inside which a cylinder 2 rigidly connected with it is mounted. At the bottom 3 of the cylinder 2 the impeller 4 is fixed and the drain hole is made with a controlled valve 5 used to remove washing liquid from the cylinder 2. Overflow holes 6 are made along the perimeter of the upper side surface of the cylinder 2, a toothed rim 7 is mounted around the perimeter 1. Cylinder 1 is mounted on podazipnik 9 and 10 by means of a hollow axis 8. The bath casing 12 and the rod 13 freely hang with the suspension 14 and the workpiece 15. The end of the Tpy6onpOBOJEa 16 is fixed inside the cylinder 2 filled with the washing liquid 17. The gear rim 7 interlocks with the gear wheel 18, the shaft of which is connected by a worm gear 19 and 20 is connected to the drive motor 21. The device operates as follows. The rotation of the drive motor 21 through the gearbox 19 and 20 and the gear wheel 18 is transmitted to the rim 7 and, consequently, to the cylinders 1 and 2 with washing liquid 17. Due to the impeller 4 inside the cylinder 2 and the rotation of cylinders 1 and 2, screwed barbotized washing fluid 17 continuously flowing through conduit 16. The helical twist of fluid flow 17 contributes to the creation of a turbulent upward flow around the workpiece 15. The washing liquid 17, penetrated by bubbles of compressed air, penetrates into the most inaccessible places of the part: deaf pockets, holes, slots, grooves, etc. and removes from these places micro-doses of electrolyte or other solutions left on the part from processing in the previous bath of the automatic line of vanochemical processing of parts. Partitions / particles discharged from part 15 are captured by an upward flow of washing liquid 17, which, reaching the drain holes 6, flows into the internal volume between cylinder 1 and 2, and then through the hollow shaft 8 it is drained into the sewer. Due to the presence of an upward turbulent flow of washing liquid 17. and a constant renewal of this liquid, the eluted particles do not remain in the E bath, but are removed from it and no longer come into contact with the workpiece 15. So the addition of two factors: bubbling of washing liquid and creating its screw flow contributes to an increase in the optimum of the process of washing parts. It becomes more intense, the flow penetrates into all hard-to-reach parts of the part, because the turbulent flow has an increased ability to transmit momentum, and therefore to an increased force effect on the streamlined part. Claim 1. A device for washing parts, containing a bath with a drain hole, a rod with a suspension and a drive mechanism, characterized in that, in order to increase the efficiency of washing parts of complex configuration by providing an upward spiral flow of washing liquid, the bath is made in the form of concentrically installed vertical cylinders, at the bottom of the inner of which the impeller is fixed, and overflow holes are made around the perimeter of the upper part. 2. The device according to claim 1, about the fact that the drain hole is made along the axis of the outer cylinder. Sources of information taken into account in the examination 1. The author's certificate of the USSR 498044, cl. C 23 G 5/04, 1973. 2. The author's certificate of the USSR 478894, cl. From 23 G 3/00, 1973.