Paper tray and manufacturing method of paper tray

Abstract

The invention discloses a paper tray, which comprises a panel, a bottom foot, a tearing plate and a waterproof and damp-proof layer, wherein a rectangular reinforcing frame is manufactured on the periphery of the panel by high-intensity and high-modulus materials, according to the bending resistance requirement of the tray during the erected placement, one to three reinforcing ribs are parallelly and fixedly arranged in the reinforcing frame at equal intervals in the transverse direction, vertical direction or inclined direction, single-layer or multi-layer bonded honeycomb paper boards are embedded in small lattices surrounded by the reinforcing frame and the reinforcing ribs, industrial paper boards are pasted on the two sides of the reinforcing frame, in addition, U-shaped paper grooves are used for covering the edges, the bottom foot is formed by filling a round paper pipe or a honeycomb paper board into a square paper pipe or a U-shaped groove, and the tearing plate is made of high-intensity and high-modulus materials. The invention also discloses a manufacturing method of the paper tray. The manufacturing method mainly comprises the following steps including material preparation and blanking, panel manufacturing, bottom foot manufacturing, tearing plate manufacturing, assembling, and waterproof and damp-proof layer coating and brushing. The paper tray has the advantages that the appearance is attractive, the weight is light, the cost is low, and the like. In addition, the bending resistance intensity is high, the impact resistance, the waterproof and damp-proof effects can be realized, the paper tray can replace a wood tray, and the application field is wider.

Description

technical field [0001] The invention relates to the field of packaging storage and packaging transportation, in particular to a paper tray and a manufacturing method thereof. Background technique [0002] Pallets are an indispensable tool for storage, loading and unloading, and transportation in the logistics field. With the development of modern logistics technology, the demand for pallets is increasing day by day. According to relevant information, the number of pallets in the United States is nearly 2 billion, and there are nearly 1 billion pallets in Japan. According to statistics in 2010, the number of pallets in my country is about 140 million. Due to the rapid economic development, 50 million new pallets are needed every year, and the current number of pallets is about 250 million. The current material for making pallets is mainly wood, and wooden pallets account for about 85%, and the amount of wood per pallet is based on 0.5 m 3 Calculated, 2.5 million m of finish...

AI Technical Summary

Problems solved by technology

[0004] 1. The carrying capacity is small, the requirements for the goods that can be carried are high, and the types of products that can be carried are limited

[0005] 2. Poor bending resistance, no matter it is transported by a special forklift or used as a pallet for an elevated warehouse, when it is subjected to a huge bending load, it will be deformed or even damaged, and it is difficult to withstand long-term storage (for example, military materials may be stored in the warehouse for 3~ 5 years) will cause creep deformation

[0006] 3. Poor impact resistance. When honeycomb paperboard is used as the main material of the pallet panel, it is difficult to withstand large edge and corner impact forces due to the low edge compression strength of honeycomb paperboard.

[0007] 4. It is easy to absorb water and get damp. In an environment with a relative humidity greater than 80%, it is easy to absorb moisture, which will rapidly deteriorate the mechanical properties of the tray and cannot be used.

[0008] 5. The production process is not standardized and the quality is difficult to control

my country's paper tray production line has a low degree of automation, which has high requirements for the rationality of product design, the standardization and stability of the production process, so the current large-scale production of paper trays has complicated processes, high energy consumption, and non-standard production processes. poor quality stability

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