Three-layer co-extrusion on-line thickness measurement and automatic adjustment of wind ring, surface center winding film blowing production unit-Energy saving extruder Extrusion blown film production line

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Three-layer co-extrusion on-line thickness measurement and automatic adjustment of wind ring, surface center winding film blowing production unit

Category:

Film blowing machine

1. The host machine adopts frequency converter for stepless speed regulation control;

2. The die head adopts the international advanced new cone streamline superposition technology;

3. The traction system adopts horizontal ± 360 ° reciprocating rotation;

4. The IBC system uses ultrasonic to control the internal cooling of the membrane bubble, and is equipped with a new electric squirrel cage foam stabilizer;

5. Ultrasonic automatic correction device;

Tel：

+86 139 7114 6633

Inquiry

Details

　　It consists of 3 single-screw extruders and auxiliary machines.

　　1. The die adopts the spiral die of the international advanced new flow channel technology.

　　2. The main unit and the die are heated by ceramic heating.

　　3. The upper traction rotating device adopts a direct-connected transmission type horizontal ±360° reciprocating rotation.

　　4. The internal cooling system （IBC） automatically measures and controls the bubble size using a 3-point over-sound probe.

　　5. New aluminum alloy electric squirrel cage stabilization bubble holder.

　　6. The electric herringbone plate of the reinforced aluminum alloy guide roller.

　　7. Ultrasonic automatic correcting device.

　　8. Active, passive, and gap three-in-one automatic take-up device.

　　9. Germany's automatic thickness measurement system and automatic air ring adjustment system （self-contained control system）.

　　10. Automatic feeding and weighing system.

　　11. The control system adopts PLC centralized control technology. Use 'touch screen display.

Model:	unit	SGXM-1400*3	SGXM-1600*3	SGXM-1800*3	SGXM-2000*3	SGXM-2200*3
Maximum diameter of film	mm	1200	1400	1600	1800	2000
membrane thickness	mm	0.025-0.12	0.025-0.12	0.025-0.12	0.025-0.12	0.025-0.12
Maximum output	kg/h	220	260	280	320	340
Mold diameter	mm	300	350	350	400	500
Screw diameter	mm	552+651	65*3	652+701	652+751	702+801
Screw length to diameter ratio	L/D	30；1	30；1	30；1	30；1	30；1
Screw maximum speed	r/min	98r\min	98r\min	98r\min	98r\min	98r\min
Main motor power	kw	302+371	37*3	372+451	372+451	452+551
Bubble cooling method	Double air outlet ring + IBC bubble internal cooling system
Traction speed	m/min	60	60	60	60	60
Total power	Kw	140	150	170	185	200
Dimensions(LWH)	mm
Suitable raw materials	LDPE LLDPE mPE EVA and compounding

High product quality, large capacity and low energy consumption. Our company has independently developed high-speed and high-capacity die heads by introducing and absorbing foreign advanced technology. The relationship between the melt flow rate, flow rate and the pressure in the die cavity, as well as the disturbance of the whole melt flow caused by the differential flow produced by the coextrusion of raw materials with different viscosities, were calculated mathematically.

The changes in physical means and manufacturing can minimize the pressure when the melt extrudes the die, reduce the functionality of various raw materials with different viscosities in the melt, and the melt can be extruded uniformly with undifferentiated flow to avoid melt damage. The die head has a reasonable and compact structure, accurate, short and smooth flow channel distribution, no dead corner accumulation, reduces the disturbance in the melt movement, is suitable for extrusion molding of various materials, and overcomes the flow anomalies caused by the common extrusion of a variety of materials with different viscosities. With few crystal points, the output is large, and energy consumption is low. Compared with the conventional die head, the extrusion amount is increased by about 40%.

Key word:

Film blowing production line

Traction system

Full tension control system

PLC centralized control

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