Static Pressure Automatic Moulding Line Of Green Sand Casting

Static Pressure Automatic Moulding Line Of Green Sand

Product Details:

Static pressure moulding technical refers to airflow with hydraulic muti-piston squeeze compaction technology,according to the difficulty of compaction,can choose only hydraulic multi-piston squeeze compaction or airflow and hydraulic multi-piston suqeeze compaction.

Static pressure has following advantages.

1.High ability for compaction sand,rigid and dense mould, suitable to manufacture of complex castings.

2.Dimensional stability and better surface roughness.

3.High efficiency of moulding.

4.Mould plate with high rate of utilization.

5.Good working condition and labour saving,

Horizontally parting static pressure automatic moulding machine is one of the main products with indepenent intellectual property rights of Weifang Kailong. It is suitable for the production of engine cylinder block, flywheel shell, brake drum, wheel hub and other gray iron, ductile iron and steel castings suitable for the size of the sand box.

The whole line has more than 30 sets of machinery, electric control, hydraulic equipment and sand box, pallent car. It includes sand falling, box splitting, box surface and inner cavity cleaning, modeling, turning, gate milling, gas hole milling, box closing, box hook tighting, casting cooling and other processes. Mouldling line is divided into sand falling, modeling, core setting, pouring, cooling five sections. And it has manual, single machine automatic, automatic, no molding, no sand, no sand, no blowing, blowing sand + blowing compaction, cooling channel selection and other working systems

Unique design of multiram press
For easy maintenance and free access to the hydraulic cylinders airflow squeeze green sand moulding machines use a unique design of the multi-ram squeeze head, fixing the hydraulic cylinders to a thick, machined steel plate. In case of necessary maintenance, standard welding may repair this basis steel plate; and cylinders may be exchanged easy and individually.

A. Process of molding machine

1. Empty Flask is indexed into the molding machine molding station
2. Pattern bolsters rotate or shuttle
3. The lifting cylinder rises, and the formwork, sand box and pre-sand frame rise
4. Quantitative sand adding
5. Move the sand bucket out while moving the multi-contacts in and clean the upper surface of the pre-sand frame
6. The lifting cylinder goes up again to top tight
7. Air pre-compacting and compaction
8. The lifting cylinder falls down while drafting


B. Turnover machine

1. Turnover machine in moulding section
Turn the sand box  by 180 degrees to make mould joint facing up

2. Turnover machine in core setting section
Turn the sand box by 180 degrees before flask closing machine

Consisting of

Adjustable roller blocks with heavy, hardened rollers running in ball bearing

C. Downgate Drilling Device

Used for milling the gate or riser at the specified point in the cope


Consisting of

1. Hydraulic motor or motor for rotating
2. Servo motor reducer and servo controller drive, gear and rack drive for X/Y direction
3. Straight line guide mechanism
4. Replaceable high hardness metal tool
5. Cutting tool holder
6. Hydraulic lift cylinder
7. Valve system and electrical control system

D. Venthole drilling device

Used for drilling holes in sand mould after compaction

Consisting of

1. Hydraulic motor or motor for rotating
2. Servo motor reducer and servo controller drive, gear and rack drive for X/Y direction
3. Straight line guide mechanism
4. Replaceable high hardness metal tool
5. Cutting tool holder
6. Hydraulic lift cylinder
7. Valve system and electrical control system


E. Flask Separating Device

Transfer the flask onto the pallet to close the flask

Consisting of

1. Guiding device
2. Lifting device
3. Positioning device for the flask
4. Flask clamp closing device
5. Valve system and electrical control system

F. Pouring machine

Suitable for production of gray iron and ductile iron castings in molding production line (including box and non-box lines)

a. Ladle changing: crane or forklift
b. Casting capacity:1000kg-2500kg
c. Pouring rate:15-22kg/sec

Consisting of

1. Fan-shaped casting bag
2. Servo tilting mechanism
3. Longitudinal and horizontal movement of vehicle and track system
4. Controlling and operating system
5. Safe system
6. Cable unit
7. Incubation system

G Transfer car & rail system

Used for transportation of sand mold and pallet in molding section and cooling section

Consisting of

1. Gear and rack running device driven by motor reducer with holding brake
2. 22kg/m light rail
3. Transition car with 4 walking wheels, guide wheels and quenched square steel
4. Limit device for transfer car
5. Hydraulic indexing and cushioning device controlled by proportional valve
6. Drag chain
7. Valve system and electrical control system

H. Punch-out machine

To punch-out the mould from the flask, operating from the top, designed as stripping device

Consisting of

1. Lifting device
2. Travel driving unit
3. Flask lifting and punch-out cylinder
4. Conveying mechanism with hardened roller
5. Supporting framework
6. Valve system and electrical control system

I. Flask separating machine

For lifting the empty flasks off the transfer car, separating cope and drag, placing cope and drag on the roller conveyor and further transport through the moulding line

Consisting of

1. Lifting device
2. Guiding device
3. Locating device for flask
4. Unclamp device
5. Valve system and electrical control system

G. Pallet cleaning device

For cleaning the top surfaces of the pallets from residual moulding sand

Consisting of

1. Framework
2. Adjustable blade
3. Guide slide for heavy roller table with ball bearing
4. Weeping brush with adjustable front scraper and capable of swinging up and down

K. Inner wall cleaning device

Scrape off the residual sand on the inner wall of the sand box to prevent the sand from falling during molding.

Consisting of

1. Framework
2. ROSTA torsional spring from Switzerland.
3. Adjustable scraper
4. Guiding device
5. Lifting device
6. Valve system and electrical control system

I. Roller conveyor,indexing rod ,cushioning rod

To convey flask one by one box on the raceway, one sand box pitch at a time; To make a sandbox stop slowly for construction Sand buffering of roll table

Consisting of

1. Hydraulic power supply system of oil cylinder with pressure
2. Supporting and guiding roller

M. Positioning mechanism

fixing the pallet at the end of the cast conveyor line

Consisting of

1. Relocatable base plate
2. Hydraulic rotary plate
3. Valve system
4. electrical control system

N. Hydraulic system

Provide the main power for the running of molding line

Consisting of

1. Hydraulic station
2. Valve and valve block
3. Oil tank
4. Oil temperature control system
5. Hydraulic oil heater
6. Complete set of valve control panel

O. Electronic control system

For the automatic operation of moulding line, and for the repair and maintenance of interlocking manual operation and non-interlocking installation operation

1. Siemens PLC,with touch screen and network Ethernet etc
2. Human-computer interface c
3. Scale plate
4. Low-voltage electrical components
5. PLC control system
6. Remote control system