Prefoaming machine for foam pad plate preparation

Abstract

The invention relates to a prefoaming machine for foam pad plate preparation, and solves the problems that the existing prefoaming machine generally belongs to a low-speed stirring type; gas is introduced through low-speed rotation blades; the bubble yield is small; the foaming efficiency is low, or the prefoaming machine belongs to a high-speed impeller type; air is introduced through a high-speed rotation impeller; the bubble diameter size cannot be controlled; the foam is not uniform; meanwhile, the whole moving is inconvenient; the pressure regulation is inconvenient; the pressure deviation can easily occur; the safety is poor. The prefoaming machine comprises a prefoaming machine body, wherein a bottom fixing plate is arranged at the bottom end of the prefoaming machine body; supportfeet are arranged at the bottom end of the bottom fixing plate; grooves are formed in positions, near the support feet, of the bottom end of the bottom fixing plate; a hydraulic cylinder is arranged at the top end, positioned at the groove, inside the bottom fixing plate. The prefoaming machine has the advantages that the structure is novel; the whole can conveniently move; meanwhile, high pressure is used, so that the bubble generating speed is high; the efficiency is high; the bubbles are uniform and fine; the pressure can be guaranteed; meanwhile, the warning on the pressure can be realized; the efficiency is high; safety and reliability are realized.

Description

technical field [0001] The invention relates to the technical field of production of foam pads, in particular to a pre-foaming machine for preparing foam pads. Background technique [0002] Foam pad - also known as foam board, EPS board is a white object formed by heating and pre-expanding in a mold from expandable polystyrene beads containing a volatile liquid foaming agent. It has fine closed cells. Its structural characteristics are mainly used for building walls, roof insulation, composite board insulation, cold storage, air conditioning, vehicle, ship insulation, floor heating, decoration and engraving, etc. The foamable styrene polymer is pre-expanded into foam particles, which requires the use of a pre-expansion machine, and the existing pre-expansion machine is generally a low-speed stirring type that introduces gas by slow-speed rotating blades, but the bubble output Small, low foaming efficiency or high-speed impeller type relies on high-speed rotating impeller to...

AI Technical Summary

Problems solved by technology

[0003] For above-mentioned situation, in order to overcome the defective of prior art, the present invention provides a kind of pre-expansion machine for foam pad preparation, solves the problem that existing pre-expansion machine is generally low-speed stirring type and relies on slow-speed rotating blade to introduce gas, But the bubble output is small, the foaming efficiency is low, or the high-speed impeller type relies on the high-speed rotating impeller to induce air, but the size of the bubble diameter cannot be controlled, the foam is uneven, and the overall movement is inconvenient, and the pressure adjustment is inconvenient, prone to pressure deviation, not enough safety issue

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