Special-purpose equipment for plant fibre tray bidirectional extrusion forming method

Abstract

The present invention discloses a bidirectional extrusion forming method of a plant fiber pallet and a dedicated device thereof. The bidirectional extrusion forming method of the plant fiber pallet includes the following steps: after a mold cavity is loaded with material, a female mold is jacked up by an oil cylinder, so that an upper mold punch can be pressed into the pallet plate molding cavity of the female mold, a lower mold punch is then jacked up by an oil cylinder to move into the supporting foot molding cavity of the female mold, pressing is stopped after a designed pressure is reached, and after heat preservation and solidification, demoulding is carried out. The dedicated device is composed of the female mold, the upper mold punch, the upper mold punch, a movable frame, a frame and a hydraulic power device. The present invention has the advantages of uniform compaction, little damage ratio, low production cost, great bearing capacity of the finished products, etc. The upper surface of the pressed pallet can be flat or concavo-convex, and the pallet can be adapted to the transportation requirements of various products.

Description

Technical field: [0001] The utility model relates to a preparation method and special equipment for pallets used for storage and logistics. Background technique: [0002] With the development of the global economy, the transportation volume of goods is increasing year by year, and pallets have become one of the main tools in the process of storage, stacking and transportation of goods. Most of the current pallets are made of wood, and the world consumes a large amount of wood resources every year for making pallets, which causes excessive deforestation and damages the natural environment. In order to save wood resources and protect the natural environment, people have researched and developed plant fibers, plastic pallets, etc. Among them, the plant fiber tray is more environmentally friendly and green. However, due to the poor fluidity of the raw material and the particularity of the large volume change during the molding process, the plant fiber tray adopts a general conc...

AI Technical Summary

Problems solved by technology

Among them, the plant fiber tray is more environmentally friendly and green. However, due to the poor fluidity of the raw material and the particularity of the large volume change during the molding process, the plant fiber tray adopts a general conceptual molding process such as a one-way molding process. Practice has proved that it is not possible. Uneven compaction density is ubiquitous, especially at the joint between the support foot and the plate, which is a weak link. During production, demoulding and forming are difficult, the damage rate is high, and the production efficiency is low (replenishment is required), and The bearing capacity of the finished product is small, which cannot meet the requirements of use. At the same time, the upper surface of the pallet is concave and convex, which is not suitable for packaging and transportation of paper items.

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