High elasticity netted plastic cushion, producing method and equipment thereof

Abstract

The present invention discloses a high elastic reticular plastic soft pad, a continuous production method and equipment. The product comprises a plurality of plastic wires, which are mutually bonded. The bonding points are orderly arranged with intervals on a plane and a facade. Every bonding point bonds two adjacent plastic wires. The key point of the production method is that molten plastics are formed into a plastic wire soft billet in a plastic wire pad forming die to move downwards. While moving downwards, the plastic wire billet alternatively swings positively and reversely along an arc track of the plane and bonds with an adjacent plastic wire soft billet in segment in a vertical direction. And a plastic wire pad material billet with orderly arranged bonding points with intervals on the plane and the facade is formed. The equipment is mainly a wire pad forming die, which is equipped with an upper and a lower fixing templates. A material channel is arranged between the upper template and the lower template. A plurality of rotary die cores vertically penetrates the upper and the lower fixing templates (connected in a way of sliding) and is arranged on a same plane in rows and columns. The upper ends of the rotary die cores are connected with a rotary driving device in a way of fixing. The lower ends of the rotary die cores are evenly equipped with a plurality of vertical grooves. The lower ends of the vertical grooves on two adjacent rotary die cores are communicated.

Description

Technical field: [0001] The invention relates to a highly elastic plastic cushion, a production method and special equipment, in particular to a highly elastic mesh plastic cushion with good air permeability, low cost, high strength and simple production process, a continuous production method and equipment. Background technique: [0002] The high-elastic mesh plastic cushion is made of multiple plastic filaments bonded to each other. Because of its high elasticity and certain air permeability, it is often used in cushions, mattresses, etc. At present, the production method of highly elastic mesh plastic cushion is that the plastic extruder extrudes the melted plastic downward through a fixed porous spinneret to form a soft blank of plastic wire. The soft blank of plastic wire is accumulated in the forming device. They are bonded to each other to form plastic filament blanks, and then go through cooling, shaping, trimming, cutting, and winding devices. Since the soft blanks of p...

AI Technical Summary

Problems solved by technology

Since the plastic wire soft billets are piled up and bonded in a free state, it often leads to multiple plastic wires being overlapped and bonded and the bonding points are disordered, which increases the quality of the product per unit volume and causes material waste. The bonding fastness and overall strength of plastic filaments also have adverse effects. For this reason, glue spraying process is often required in the production process to improve strength and other properties.

Glue spraying will not only increase the mass per unit volume of the product, but also produce a lot of volatile substances that are harmful to the human body and the environment during the rapid drying process. Even so, the overall strength cannot meet the needs of use

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