2,Co-extruder for the PP hollow sheet machine. the co-extrusion system is used for making AB layer PP hollow sheet.The inner layer can use recycled PP material or High PP filling material.
3,Mould for pp hollow sheet machine: 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.
4,Screen changer for pp hollow sheet machine : 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.
5,Vacuum calibrating table for PP hollow sheet machine: 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.
6,Tractor for PP hollow sheet machine: There are two tractors. The first one is high power, 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.
7,Stress remover corona treatment device for PP hollow sheet machine:The advanced large area conductive heating mode can effectively remove the stress of plate and further improve planeness of the plate.
8,Auto Cutting machine for PP hollow sheet machine: Accurate instant length-fixed cutting and automatic up-down discharging system combined with alloy steel sharp blade realize high quality of cutting.
9,Differnt width and length cutter (New design )
10,Automatic Manipulator (New design )
Application Of PP Hollow Corrugated Sheet
| Packaging Filed |
Fruit and Vegetable box , Bottle Layer, Transfer box, Display rac, Partition, Gift box, Food packing, |
| Advertising |
Political and election signs, Special event signage, Advertising board, Real estate signs, Lawn decoration, Indoor and outdoor signs |
| Protection |
refrigerator, Home appliances. Floor Protection |
| Stationery and Tote |
Partitions, art design and various pattern box or delicate gift pack |
Plastic corrugated hollow sheet box making process
1,Raw material perpare
The PP filler masterbatch granulating machine for the raw material production.
The waste PP plastic sheet can be cutting into small chip to use directly,or the waste chip after granulating then for extruder.
The PP granules and filler masterbatch and coloe pigment can be mixing for the extruder.
2,PP hollow corrugated sheet production line
Tongsan professional for plastic PP hollow corrugated sheet making machine ,we can provide all series production line for the sheet width range from 1220mm to 2800mm ,the corrugated sheet thickness range from 2-6mm or 7-12mm.
3,Plastic corrugated box making machine
3.1Corona treatment machine for the surface treatment
In order to improve the surface tension of the hollow sheet surface, and thereby improve the printing ink fastness, the hollow corrugated sheet surface will under corona treatment, so that the surface produces micro-concave dense holes, plastic surface roughening, increase the surface activity.
3.2Box sheet printer machine
The printing machine generally consists of a mechanism such as plate loading, ink coating, embossing, and paper feeding (including folding). It works by first making a plate and image to be printed on a printing press, then applying the ink to the place where the text and image are printed on the printing plate by hand or by a printing machine, and then directly or indirectly Printed on paper or other substrates (such as textiles, metal sheets, plastics, leather, wood, glass, and ceramics) to replicate the same print as the plate.
3.3Die cutting machine for the shape of corrugated box,
The working principle of the die-cutting machine is to use a die-cutting knife, a steel knife, a metal mold, a steel wire (or a template carved from a steel plate), and apply a certain pressure through the plate to cut the printed product or the cardboard into a certain shape. If the entire print is pressed into a single graphic product, it is called die cutting; if the steel wire is used to press a mark on the printed product or leave a bent groove, it is called an indentation.
3.4 Welding machine or bookbind edge sealing machine
Plastic welding machines are used to weld thermoplastic engineering plastic sheets or products such as polyethylene, polypropylene, polypropylene, and nylon. During operation, the plastic electrode is melted and melted, and the workpiece to be welded is fused and bonded. It is widely used in the welding and maintenance of plastic equipment, plastic floor laying, plastic pipe connection, plastic bottle sealing and so on.
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