There are many problems in the packaging and processing of plastic bottles that need to be paid attention to. The following points are summarized below, and I hope to help you.
1. When designing extruded plastics, if the material is high-density polyethylene or polypropylene, the cross-section of the plastic bottle manufacturer should be rectangular or oval. For polyethylene or other flexible materials, the cross-section should be round. The shape is good, because it is convenient for the content to be squeezed out of the plastic bottle manufacturer. The plastic parts used with the mouth of the plastic bottle manufacturer are mainly bottle caps and sealers. The design of the bottle mouth should be considered so that the mouth of the plastic bottle manufacturer can better match the cap and sealer. The bottom of the plastic bottle manufacturer is a plastic bottle. The weak part of the manufacturer's mechanical properties. Therefore, the bottom of plastic bottle manufacturers is generally designed to be concave. The corners and inner recesses of the plastic bottle manufacturers are all made large arcs. In order to facilitate the stacking of plastic bottle manufacturers and increase the stacking stability of plastic bottle manufacturers, the bottom of plastic bottle manufacturers should be designed with internal grooves.
2. When plastic bottle manufacturers use labels on the surface, try to make the label surface as flat as possible. A "frame" can be designed on the surface of the plastic bottle manufacturer, so that the label can be positioned accurately without movement. In blow molding, the first part of the parison that is blown into contact always tends to harden first. Therefore, the wall thickness of this part is also larger. The edge and corner part is the part where the parison is in contact with inflation, and the wall thickness of this part is small. Therefore, the edges and corners of plastic bottle manufacturers should be designed with rounded corners. Changing the surface shape of the plastic bottle manufacturer, for example, the middle part of the plastic bottle manufacturer is relatively thinner, and increasing the circumferential groove or rib on the surface of the plastic bottle manufacturer can improve the rigidity and bending resistance of the plastic bottle manufacturer. Longitudinal grooves or ribs can eliminate offset, sagging or deformation of plastic bottle manufacturers under long-term load.
3. The printing surface of plastic bottle manufacturers is the place where consumers' attention is focused. The printing surface should be smooth and continuous; if the plastic bottle manufacturer contains handles, grooves, ribs and other structures, the design should be careful not to cause inconvenience to the printing operation. Oval plastic bottle manufacturers have higher rigidity and higher mold manufacturing costs. Therefore, in order to ensure the rigidity of plastic bottle manufacturers, in addition to selecting materials with high rigidity, the shape design of the plastic bottle manufacturers must also be used to enhance the rigidity and load-bearing strength of the plastic bottle manufacturers.
4. Because most plastics have notch sensitivity, plastic bottle manufacturers are prone to cracks and cracks at sharp corners, the roots of the mouth threads, necks and other parts, so these parts should be designed with rounded corners. For the transfer place of rectangular plastic bottle manufacturers, it is necessary to support most of the load of the plastic bottle manufacturers, so locally increasing the wall thickness at this place is also beneficial to improve the rigidity and load resistance of the plastic bottle manufacturers.
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