1 Make the plastic bottle wall thickness uniform.
The most concentrated part of the consumer's attention. The printed appearance should be flat and continuous; if the liquid plastic bottle contains handles, grooves, ribs, etc.
2 The printed surface of the plastic bottle. Care should be taken during design to avoid inconvenience to the printing operation.
The label surface should be flat. A “frame†can be designed on the exterior of the plastic bottle to accurately position the label.
3 When the appearance of the plastic bottle is marked. Does not produce movement.
If the middle of the plastic bottle is relatively thin,
4 Change the shape of the plastic bottle. Increasing the circumferential groove or rib of the outer surface of the plastic bottle can increase the rigidity and bending resistance of the plastic bottle. Longitudinal grooves or ribs eliminate the offset, sagging or deformation of the plastic bottle under temporary load.
If the material is high density polyethylene or polypropylene,
5 When designing extruded plastic bottles. The cross section of the plastic bottle should be rectangular or elliptical. For low density polyethylene or other flexible plastic bottles, the cross section is preferably round. This facilitates the extrusion of the contents from the plastic bottle. The part of the parison that is inflated first,
6 When blow molding. Always tend to harden the area first. Therefore, the wall thickness of this part is also larger. At the edge and the corner, the final contact of the parison is inflated, and the wall thickness of the portion is small. Therefore, the edges and horns of the plastic bottle should be designed to be rounded.
Jiuzhi Plastics Network
This Machine can produce C or Z shaped steel channels.Now C/Z section are widely used for steel constructure,workshop,warehouse,commerial building.
Our factory is specialized in different kinds of Roll Forming Machine ,also we can design the machine according to you products details.
The detail of Purlin Roll Forming Machine pls see belows:
Rolling Speed 8-12m/min(not include cutting time)
Rolling Thickness 0.3mm-0.8mm
Shaft Diameter 75mm
Roller Stations About 18 stations
Roller Material 45# forged steel(coated with chrome)
Effective Width 820mm
Feeding Coil Width 1000mm
Raw Material Color painted coils
Cutting(Blade) Material Cr12
Motor Power 4KW
Hydraulic Station 4KW
Dimension 7500X1300X1400(mm)
Total Weight 5.6T
Equipment List
1 Decoiler
2 Feeding Device
3 Main Forming Machine
4 Hydraulic Step Press Device
5 Hydraulic Cutting Device
6 Hydraulic Station
7 PLC Computer Control System
8 Output Table
Purlin Roll Forming Machine
Purlin Roll Forming Machine,Purlin Roof Roll Forming Machine,C/Z Purlin Roll Forming Machine,Full Automatic Purlin Roll Forming Machine
HEBEI HANMAC MACHINE CO., LTD. , https://www.chinahanmac.com