Plastic Mesh for Wuhan Handern Packaging
DATE：2021/8/10 8:33:31 / READ： / SOURCE：This station
Plastic Mesh for Wuhan Handern Packaging
The packaging plastic mesh material is a packaging material with a continuous mesh structure of a certain specification by knitting plastic filaments into a net or directly extruded into a net by an extruder. The earliest materials were all made of plastic extrusion spinning, drawing, splitting and knitting. This method is less difficult to produce, easier to control in process, and stable in quality, but it has many processes, low output, and mesh. The change is small. Using an extruder and a netting die to extrude into a net at one time, it has the advantages of fast extrusion speed, fewer procedures, diversified mesh forms due to different die designs, and low production cost. The key lies in the design and manufacture of the web forming die. www.handern.com Hollow Board Equipment
The key to mesh forming is the design of the machine head. The basic principle of netting is to open a set of circular or semicircular, rectangular, trapezoidal, triangular and other shapes on the inner and outer lips of the circular die of the extruder. The mold core and the mold sleeve can be separate Or rotate in opposite directions. When the molten material is extruded from the groove, it rotates with the die or the upper and lower molds of the T-shaped die are reciprocating, so that the strands are separated to form a network, and the inner and outer molds are rotated or the upper and lower molds are reciprocating During the movement, when the melt flows out from the groove, it forms a network knot, and the extruded network and the network knot become a product with a network structure. The round or flat sheet-like mesh is extruded from the machine head, after cooling and shaping, it is rolled into a product. It can also be cooled and shaped and then heated to a highly elastic state for unidirectional or bidirectional stretching. After heat shaping, it can be rolled into a product, which can greatly improve the strength of the net-like packaging product. www.handern.com Hollow Board Equipment
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