Blow Molding MachineBack

 

 

I. THE USE & SPECIALITY OF THE MACHINE

SL - 3 plastic bottle blowing machine is the latest product of our company with the multifunction and bi-directional drawing features. As part of the two-step process, the PET container making equipment is small in size, low in cost, simple in structure, convenient in operation and maintenance and above all, energy-saving. The equipment is used to make the PET bottles of any possible geometrical figures and is therefore widely used in bottling food, beverage, medicine, cosmetics, soft drinks and above all Mineral Water

2. FEATURES

 

1. The machine is embedded with automatic control thermostat, time relay and is convenient in operation.
2. The machine is driven by the pneumatic systems.
3. The clamping mould is oriented by the sliding bearings. The length of drawing is steplessly regulated by the height of the mould, which is favorable to the forming of the products.
4. The preheated is embedded with a copper tube which prevents possible damage to the plastic tube blanks during feed in.
5. There are two methods of operation: MANUAL and AUTOMATIC. It is good for maintenance, adjustment and production.

 

 II. THE VITALS & FUNCTION OF THE MACHINE

1. THE DRAWING AND THE BLOWING SECTIONS.

The drawing and the blowing sections are made up on a drawing electric magnetic valve, a high-pressure blowing valve, a vertical air cylinder at the top of the machine, two pull rods, two sealed air cylinder . In operation, the electric magnetic valve in the drawing section transfers air to motivate the air cylinder valve at the top of the machine to drive the pull rods. As a result, the air cylinders fall onto the already clamped bottle blank, and the pull rods exert a draw on the heated and already elastic blank in two directions, transversal and longitudinal. Meanwhile the high-pressure blowing valve draws and blows it into the desired shape through the sealed air cylinders.

2. THE PREHEATER SECTION

In operation, the temperature controller maintains the desired constant temperature by the means of the thermocouple. The two heating boards transfer heat to the copper tube and the thermal radiation heats and soften the plastic tube blends till it is resilient to be drawn and blown into the desired shape. The temperature of the porous heating aluminum boards inside the case is measure by the thermocouple and is controlled by the temperature controller. The voltages for the upper and lower heating boards are respectively controlled by the two silicon controlled return circuits and are subject to regulation at will to meet the different requirements for different products.