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Blow molding machine cooling unit,

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Case presentation

Blow-molding machine system cooling, blow-molding machine cooling, blow-molding machine cooling

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Detailed introduction

Blow molding machine system cooling, blow molding machine cooling, blow molding machine cooling

Hollow blow molding machine is generally divided into screw cooling, body cooling, and product cooling.

1, blow molding machine < /strong> cooling of screw effect is to eliminate friction overheating, stable plastic extrusion pressure, promote plastic mixing evenly, improve the quality of plasticization. However, its use must be appropriate, especially not excessive, otherwise the sudden cooling of the plastic melt in the cylinder will lead to serious accidents. And screw cooling is absolutely prohibited before extrusion, otherwise it will lead to serious equipment accidents.

Screw cooling generally adopts industrial closed gear oil (lubricating oil temperature control 35℃ to 65℃),

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Temperature control selection: oil cooler/chiller: 25℃ ~ 35℃ direct circulation cooling (compressor refrigeration)

Cooling tower: 30℃ ~ 35℃ circulating water (natural cooling refrigeration) Energy saving

2. Cooling of the fuselage

The cooling function of the fuselage is to increase the heat dissipation of the barrel, so as to overcome the temperature rise caused by friction overheating, because this temperature rise can not be stopped in the process of plastic extrusion, even after cutting off the heating power supply, so that the reasonable temperature can not be maintained for a long time, must increase the heat dissipation, and make the barrel cool down, in order to maintain the heat balance in the extrusion process. The cooling of the fuselage is carried out in sections, mainly by fan cooling. Considering the different functions of each section of the fuselage, special attention is paid to the use of cooling in the homogenizing section.

Cooling tower: 30℃ ~ 35℃ circulating water (natural cooling refrigeration) Energy saving

Cooling of the product is an important measure to ensure the geometry and internal structure of the product. The plastic extruded cladding should be cooled immediately after leaving the head. The plastic products can be cooled by rapid cooling method and cooled directly with low temperature water so that they can be cooled thoroughly in the cooling tank and no longer deformed.

Chiller: 25℃ ~ 35℃ direct circulation cooling (compressor refrigeration)

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Optimization design case:

A blow molding tank factory, using 2 SCJ1000,2 blow molding machines,

Parameters of a single unit

Extruder (2)	Motor driving power 2X110KW, heater power 2X40KW
Nose	Heating power 85KW
Forming machine	Clamping force 1500KN
Electrical hydraulic system	Hydraulic main system, 16MPA
	Hydraulic private Suit System, 16MPA
	Compressed air 0.2 ~ 0.6MPA
	Cooling water 40m³, water temperature 20℃
	Main oil circuit power 45KW
	Servo power 7.5KW