2000mm width of Plastic PP grid hollow sheet extrusion machinery
PP/PE hollow sheet is light and high strength, moisture-proof, good environmental protection and re-fabrication performance and can be used into the reusable container, packing case, clapboard, backing plate and culet.
PC hollow sheet is widely used in construction sunroof in buildings/halls/shopping center/stadium/public places of entertainment and public facility; Ring shield of bus station/garages/pergolas/corridors; noise barriers for highways and urban elevated road. This production line is used for PP PC hollow grid board, this board is widely used in construction, decoration, packing, advertise.This extrusion line consists of single screw extruder, melt-pump, hydraulic filter exchanging unit, hollow sheet die head, vacuum calibrating table, first haul off machine, oven, corona treating unit, cooling table, second haul off machine, trimming and length-settled cutting units and stacker etc.
Characteristics of vacuum calibrator:
1. High quality mould steel or high strength Al-Mg Alloy
2. Special harden treatment and non-sticky coating on the surface.
3. Independently controlled vacuumize device and temperature controlling system.
4. Consist of vacuum sealing edge device.
The technology of hollow sheet die with co-extrusion feed block to get UV+PC+UV, UV+PC hollow sheet can save 30% UV on the surface.
The specially designed screw and the advanced controlling system ensure excellent plasticization, high output and stable extruding.
Quick screen changer of hydraulic system ensures the short course of screen changing. Double-position combined with special sealing structure guarantee stable operation of screen changer.
Mould adopts high-quality alloy steel and throttling device to ensure even pressure of feed influent at the mould lips, and also differential action of up-down piece guarantee even thickness of the plate.
Vacuum calibrating stable:
Heating exchanging and cooling system of quick speed in calibrating system alternate effectively and ordinally with vacuum system, which ensures calibrating precision. Vacuum system composes two independent subsystems and each is equipped with several fixed circulating vacuum lines of three-point type. Meanwhile, each line carries vacuum regulating system and vacuum display system that realize even and stable vacuum degree of plate surface.
There are two tractors. The first one is of high powr, high reduction ratio, multi-roller type, well low-speed operation, high traction and is able to draw the plate up from the calibrating table evenly and synchronal. The second one is designed to remove stress, and in addition it is equipped with edge-cutting device to ensure the valid width and smooth cut of the edges.
The advanced large area conductive heating mode can effectively remove the stress of plate and further improve planeness of the plate.
Accurate instant length-fixed cutting and automatic up-down discharging system combined with alloy steel sharp blade realize high quality of cutting
Machine pictures below:
Hollow grid pp sheet making machine can be used to produce PC, PP, PE hollowness grid boards.
The board is popularly used to buildings, decoration, advertisement ornament, sound insulation on road and packaging.
The PP hollowness board can replace the paper packaging canton with the advantages of light weight, high strength, damp-proofing and corrosion-resistance.
Qingdao Leader Machinery Ltd.,Co
Address: South of Yangjialin,Beiguan,Jiaozhou,Qingdao,China.