Pulp molding products molding process
At present, there are two major types of foreign pulp molding equipment: vacuum forming and grouting forming.
1. Vacuum Forming Type
It is the most popular method for paper and plastic products. There are three ways depending on the structure: drum type, flip type, reciprocating type
Drum type: continuous rotation production, high production efficiency, large mold investment, high precision mold processing, high precision machining equipment, a concave mold with eight sets of punch, need to use CNC machining center mold, long processing cycle, Big investment. Due to continuous production, it is suitable for the production of large quantities of styling products, such as plates, plates, wine trays, and egg trays. For industrial molding production due to non-standard, small quantity, small batch, mold investment is not applicable. The
Flip type: Back-turn production is lower than drum production efficiency, suitable for industrial molding medium batch and non-standard production, but because it is a set of concave mold with two sets of punches, need CNC center processing mold, mold investment Long cycle. The
The round-trip lift type: The production efficiency is lower than that of the rotary drum type, and it is not much different from the reverse type. It is the commonly used equipment of the current wind, because the equipment only needs a set of punches to support a set of punches, and it does not need CNC machining. Particularly suitable for non-standard, small batch, fast cycle industrial packaging products (industrial packaging product mold production cycle is usually within 10 days).
2. Grouting Forming Type
Grouting method is based on different pulp packaging products, calculate the required amount of slurry (material) and quantitative injection molding cavity, adsorption molding. This molding method is suitable for small changes, and the standard products for setting are commonly used in tableware molding products. It is difficult to grasp due to stereotype calculation, and this molding method is not adopted in non-standard paper-plastic packaging (industrial packaging).