SU897387A1 - Mechanized line for making moulds by the method of electrophoresis for investment casting - Google Patents

Description

The line includes an auto-operator 1 and a bath 2 applied along the course of the technological process; pizza layer coating, sand spit 3, bath 4 applying a conductive coating, a common coat layer, sand sprink 5, bath 6 deposition of an electrophoretic coating layer, sand spade 7.

The auto operator 1, equipped with a multi-head 8, transports the blocks along monorails 9 and performs horizontal and vertical movements, rotation of the blocks around its axis, rotation of the blocks 45-90 ° from the vertical.

Baths 2, 4, 6 are intended for the preparation and mixing of suspensions, including for dipping (bath 2, 4) and electrophoretic deposition of coatings (bath 6) on the surface of the blocks during the manufacture of the molds. Mixing devices 10 are located on the bottom of the baths and provide uniform mixing of the suspensions without stagnant zones and turbulence. The preparation of suspensions to replenish the level of the baths during operation is centralized.

Sandsweets 3, 5, 7 are designed to obtain a fluidized bed of refractory material and sprinkle them with coatings after dipping. In suspension.

The relay contact equipment and the 2-software control mechanism are located in the cabinet I. The exposure time of electrophoresis, the application of facing and conductive coatings, dusting the refractory material and the removal of excess suspension is set and controlled by a time relay. The control of the operation in the setup and the start-up of the line in automatic modes is carried out from the control pendant 12.

The main technological equipment is equipped with onboard suction units of the exhaust ventilation system 13.

The process of making molds on a mechanized line (Fig. 3) is carried out as follows.

In sandbags 3, 5, 7 compressed air is supplied to create boiling water.

lay

refractory material, suspensions in baths 2, 4, b are mixed and adjusted. On the loading position - unloading model blocks

with holders mounted in the multi-head 8 of the auto-operator 1. The line is started from the control pendant 12. The fulfillment of all technological operations, in the manufacture of forms, is carried out in automatic mode according to the sequence diagram (Fig. 3). In the manufacture of large-sized forms in a two-cycle automatic mode, the repeated application of current-conducting and foretic coatings is followed, followed by sprinkling with refractory material. At the loading position you; the load at the end of the working cycle the finished forms are removed from the multiplace

5 heads and sent for further operations according to the process.

The expected economic effect during the implementation of the line will be approximately 100-130 thousand rubles.

Claims (2)

1. A mechanized production line of molds by electrophoresis for casting on melted models, containing sandbags, conducting current-conducting coating bath, electrophoretic layer deposition bath of the coating and vehicles with guides connecting the equipment in a technological sequence, characterized in that , in order to improve the quality of the coating by providing static electrophoretic deposition and improving the operational reliability of the line, vehicles us as telozhechnogo autooperator mounted on the guide movable over the centers coating bath, the bath being provided with mixing devices arranged in their bottom part. . five 2. Line according to claim 1, characterized in that, in order to increase its performance, an auto operator is equipped with a multi-unit head for block suspension. Information sources. taken into account during the examination 1. Foundry engineering. 1975, No. 4, p. 32-33. Single Cycle / 1111 Coating Unit - (i4UK / iu4HOC Coating (rig 5