BATTERY CASTING PLANT FOR CISTERN TANK

(1) CONSTRUCTIONAL FEATURES.

A Battery Casting Plant for Cisterns consists of a Casting Bench with central slip slurry and a pipeline system. 28 moulds are arranged on the casting bench. The two mould parts are let vertically of suspendingly in special tightening devices on the casting bench and in the lifting frame.

Parallel to the casting bench, depositing benches (Storage Racks) are provided at the outside, serving for depositing the demoulded pieces

The slip slurry of the individual moulds is done by means of pipelines arranged below the casting Bench and controlled by corresponding valves, each single mould is connected to the pipeline system by means of a Plastic hose. The slip slurry is sent from an overhead tank which is filled up again during the casting procedure,

(2) OPERATIONAL FEATURES:

As soon as a raw article has been formed and stiffened in the filled moulds, the complete upper frame of the bench is fitted vibration free by means of a lifting device.

The core with the cast piece is released from the powdered bottom part of the mould and is lifted upwards as far as an approx. 40-50 mms wide gap becomes existent between upper rim of the plaster mould and bottom rim of the cast piece.

Now, a setter plate / wooden depositing plate is placed between this gap. Two plaster pivots, inserted from inside through the core, which have been put in prior to casting which keep the article at the core until the de-moulding has been reached, are now released and pulled out from their arrest.

Now, the article only is kept at the core by adhesion and by means of a compressed air gun, it easily can be released. When all articles have been de-moulded and deposited on the corresponding wooden plate, the upper frame of the casting plant with the inserted cores is lifted further on until the cast articles are free accessible for fitting and sponging and can be deposited with the plate on a second bench for drying.

After each casting procedure, the complete pipeline system has to be flushed. To keep the flushing water consumption at a low rate, a circulation pump is pumping the water from a collecting tank through the pipe line system for several times, until the interior or the pipes and hoses are cleaned.

(3) SPECIAL FEATURES OF BCC-28:

a. An economical manufacturing procedure has been made available with the battery casting plant, system BCC-28. The plant has been mechanized so far that the physical efforts are reduced to a minimum, by the simple construction, only little maintenance is required. Because of the close arrangement of the moulds, you will have 3 times saving in space compared with the hand casting procedure.

b. The best advantage of the BCC-28 machine is that the battery casting plant with 28 moulds required only one operator and economical & fast manufacturing process has been made available by BCC-28.

c. The plant has been mechanized so for that the physical efforts are reduced to a minimum.

d. The close arrangements of moulds would have little maintenance problems but there will be saving of space as compared to hand moulding system.

e. The plant itself has no drying device. Generally, it is sufficient when the working area is heated up to approx. 40 degree centigrade during the night hours. During this period, the moulds are on the casting plant in opened condition. By using fans, the drying effect still can be improved.

f. The Neptune has designed Hot Air Generator & its drying system for fast mould & core drying process. The loopholes duct line will be installed at top of BCC-28 machine, which continuously throws hot air vertically downward over moulds & cores.

g. The Hot Air will be generated by single gas fired Burner Box and Air Blower of 5 HP Motor. The suction of air in Blower will be done from shop floor so re-circulation of air will develop average 40'C temp, in working area & moulding shop. While direct hot air flow over moulds & cores will increase drying rate, so production rate can be increased.