Production method for double-pulp-suction cold-pressing double-section hot-pressing automatic shaping of molded products

Abstract

The invention relates to a production method for the double-pulp-suction cold-pressing double-section hot-pressing automatic shaping of molded products. A double-pulp-suction cold-pressing double-section hot-pressing automatic shaping machine is applied, an upper pulp-sucking mold and a lower pulp-sucking mold simultaneously suck pulp to form an upper preform layer and a lower preform layer, and then simultaneously carry out cold die-pressing along with a cold-pressing upper mold and a cold-pressing lower mold of a cold-pressing die mechanism, the upper pulp-sucking mold and the lower pulp-sucking mold are then closed to combine the upper preform layer and the lower preform layer into a thickness-doubled thick preform, and the thickness-doubled thick preform then undergoes two-section hot-pressing shaping operation. The production method has the following practical effects: the assembly space is saved, the production speed is increased, the thickness and shock-absorbing space of moldedproducts are increased, so that the cushioning and shock-absorbing effect is enhanced, and surfaces are all smooth surfaces.

Description

technical field [0001] The invention relates to a manufacturing method of double-suction slurry cold extrusion and two-stage hot-press automatic molding of molded products, especially a method that can save assembly space, speed up manufacturing, increase the thickness of molded products and shock-absorbing space, and A method for manufacturing a molded product with double-suction cold extrusion and two-stage hot-pressing automatic molding machine for gaining cushioning and shock-absorbing effect and making the surface smooth. Background technique [0002] Plastic products made of plastic materials are easy to release toxins and cause serious pollution to the environment. They are difficult to recycle and reuse, or are difficult to recycle and decompose, and the cost of recycling is huge, which has caused serious damage to global environmental protection for many years. In today's era of high awareness of environmental protection, it has become the mainstream of research and...

AI Technical Summary

Problems solved by technology

Traditionally, when manufacturing molded products, the adsorption action on the blank layer can only be carried out on one side (the side attached to the mold surface), so the overall dehumidification rate of the blank layer is slow and inconsistent, which in turn affects the manufacturing speed

[0007] 2. The thickness cannot be increased, resulting in poor shock absorption effect

When traditionally manufacturing molded products, the suction mold can only cover the mold surface with a single layer of blank material layer at one time, and the blank material layer cannot be stacked in multiple layers, so the thickness cannot be increased. Generally, it is only suitable for molding with a smooth appearance and no thickness. Small products that are too thick (such as bowls, plates, cup lids, etc.), if you want to manufacture thicker molded products with better shock absorption effects (such as packaging materials with better shock absorption effects), traditional manufacturing methods difficult to achieve

[0008] 3. There are non-advantages on the surface, resulting in a low sense of value

It is known that there are obviously two surfaces on one side of the molded product: one side is a good side and the other side is a non-high side. It is suitable for packaging products with low value (such as packaging eggs). When using high-performance products (such as mobile phones), there will be "non-advanced surfaces" in the packaging materials of molded products, resulting in poor visual perception and lowering the value of the overall product

[0009] Because conventional molded products are slow in manufacturing speed, hard to increase in thickness, and have a non-advantageous surface, the promotion of the use of molded products is greatly restricted, and they cannot be directly used for packaging high-value products.

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