The working principle of PS Sheet Extrusion Production Line is to convert PS particles into continuous sheets through a continuous process of raw material melting and plasticization → melt forming → cooling and shaping → subsequent processing. The core is based on plastic extrusion molding technology. The specific steps are as follows:
The dried PS particles are transported to the extruder hopper through an automatic feeding device. The extruder screw gradually melts the solid PS particles into a uniform melt through rotation and external heating. The melt is pushed to the T-die (flat flow channel) to preliminarily determine the width of the sheet. The melt film enters the three-roll calender and is quickly solidified and formed. The shaped sheet is pulled at a uniform speed by the traction machine, and the burrs are removed by the trimming machine. Finally, it is rolled into a regular coil by the winder.
| order number | name | quantity |
| 1 | Feed machine + hot air dryer | 1set |
| 2 | SJ 65-30 / 1 extruder | 1set |
| 3 | Electronic control system of DK-12 area | 1set |
| 4 | MJ-350 plate mold, product thickness of 0.3-2mm | 1set |
| 5 | BF-600 X 320 three-roller optical press | 1set |
| 6 | BF-600-4000 cooling bracket | 1set |
| 7 | BF-600X 220 rubber roller tractor | 1set |
| 8 | BF-400 rewinder | 1set |
A. The reducer gear is processed with high-quality alloy steel and treated by grinding teeth, so that the whole gear has the advantages of shock absorption, low noise, wear resistance and long service life. All the lubrication points in the box are forced lubrication, and the lubricating oil is equipped with high efficiency water cooling system.
B. screw material adopts 38CrMOALA high quality nitride steel. and nitride treatment. nitride depth: 0.3-0.6mm. hardness 740 HV. brittleness grade 2.
C. The cylinder material is made of 38CrMoALA high quality nitride steel, and after nitride treatment, nitride depth: 0.4-0.7mm, hardness 940 HV, brittleness grade 2.
D. The heater adopts cast aluminum heater, and each heater has a cooling air duct.
E. cylinder cooling area: 5. made of stainless steel.
F. The fan adopts imported low noise and efficient cooling fan (model: DF type), and the fan power is 250W / set.
Power of g. AC motor is 30KW (Shandong Hongqi or Rongcheng motor)
H. Control form: frequency conversion control (using Inwitten governor)
I. Screw diameter: 65m (using Zhejiang Zhoushan screw drum)
J. aspect ratio: 30:1
K. The extruder is heated in 5 zones, and the heating power of each area is 5KW. Spby area 1, mold reserve area 5.
L. One set of electrical control cabinet (vertical control cabinet, electric cabinet with lock protection, Omron intelligent temperature controller, Siemens contactor, great-tron frequency conversion controller)
PS Sheet Extrusion Production Line -mold
A. Effective width of the mold: 350mm, suitable for 0.3-2mm thickness products.
B. The mold material adopts 5CrNiMO of imported brand high-quality heat-resistant alloy steel.
C. mold structure flow to the hard chromium plating. and with auxiliary micro screw adjustment.
D. the mold is divided into 3 zones for heating and standby 2 zones
E. The heating method is to heat up the heating rod core part.
A. structure; vertical three roller
B. Number of rollers; three pieces
C. Roller diameter: 320mm (Changzhou Lianfeng or Xuzhou Saite Machinery Manufacturing Co., Ltd.)
D. Roller length: 600mm
E. Wall thickness of the roller: 25mm
F. roller: the material is made of brand steel. and after treatment. the hardness can reach RC60-65
G. roller surface treatment: mirror treatment. and fine polishing.
H. The roller structure adopts a multi-layer composite rapid exchange medium system to ensure the constant temperature of the roller.
I. the constant temperature medium of the roller: purified water or softened water
J. The temperature system adopts the temperature of the three rollers to independently control the system mode. the temperature of the three rollers can be adjusted arbitrarily. equipped with three 0.75kw pumps.
The control system of k and three rollers adopts the independent control system mode
I. Adopt the reducer transmission system to ensure the smooth operation of the three rollers
M. The configuration control system adopts frequency conversion control system, with synchronous and independent speed regulation control.
N. Transmission power is 0.75 KW x 3 sets
O. With the auxiliary three-roller emergency stop system
P. equipped with auxiliary three-roller clearance precision adjustment system
A. Number of empty rollers: 12
B. Diameter of the air delivery roller: 75mm
C. Length of the air delivery roller: 600mm
D. surface treatment of air delivery roller: stainless steel
E. Length of the air delivery device: 4 m
F. with the gold cutting knife: 2
A. Traction rubber roller: one group
B. Traction diameter: 220mm
C. Traction length: 600mm
D. traction rubber roller surface coated with corrosion resistant. temperature resistant. wear resistant rubber and polished
E. deceleration transmission system adopts reducer transmission
F. With a 0.75KW frequency converter
G. auxiliary three roller press and traction speed adjustment system. auxiliary tractor independent speed adjustment system
A. a set of protective film device
1.1 bending and leveling roll
2. Wiling method: diameter 76 paper cylinder gas rising shaft
3. Collection work station: double work station
Address
No. 88 Shandong Road, Beiguan Industrial Park, Jiaozhou City, Qingdao, Shandong Province, China
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