Compression molding machine for glass fiber reinforced plastic material machining

Abstract

The invention discloses a compression molding machine for glass fiber reinforced plastic material machining. The compression molding machine comprises a bottom plate, a stirring assembly, a discharging assembly, a moving assembly and a supporting assembly, a storage barrel is fixedly arranged on the left end of the upper side face of the bottom plate, a gear ring is fixedly arranged on the upper end of the interior of the storage barrel, a partition plate is fixedly arranged on the lower end of the interior of the storage barrel, an electric heating pipe is installed on the lower side face ofthe partition plate, a second motor is installed on the upper end face of the storage barrel, an output shaft of the second motor is fixed to the upper end face of a rotating shaft, three corresponding mounting boxes are arranged in the interior of the storage barrel, the three corresponding mounting boxes are connected with the rotating shaft through six connecting strips, and the stirring assembly comprises a worm wheel, a worm, a first gear, a second gear, a connecting shaft, a semi-gear ring, a torsion spring, a connecting plate and a stirring block. Bubbles and cavities in a molten material can be eliminated, the quality of a formed glass fiber reinforced plastic is improved, and the glass fiber reinforced plastic can be separated from a mold very conveniently.

Description

technical field [0001] The invention relates to the technical field of glass fiber reinforced plastic material processing, in particular to a molding machine for glass fiber reinforced plastic material processing. Background technique [0002] FRP (fiberglass), also known as glass fiber reinforced plastics, refers to reinforced plastics that use glass fibers to reinforce unsaturated polyester, epoxy resin and phenolic resin matrix, and use glass fibers or their products as reinforcement materials. FRP has light weight and hardness. , non-conductive, stable performance, high mechanical strength, less recycling, corrosion resistance and other characteristics, can replace steel to manufacture machine parts, automobiles, ship shells, etc. The preparation methods of FRP include hand lay-up molding, compression molding, winding molding And the pultrusion molding method, wherein the compression molding method is to put the powdery, granular or fibrous plastic into the mold cavity a...

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Problems solved by technology

[0002] FRP (fiberglass), also known as glass fiber reinforced plastics, refers to reinforced plastics that use glass fibers to reinforce unsaturated polyester, epoxy resin and phenolic resin matrix, and use glass fibers or their products as reinforcement materials. FRP has light weight and hardness. , non-conductive, stable performance, high mechanical strength, less recycling, corrosion resistance and other characteristics, can replace steel to manufacture machine parts, automobiles, ship shells, etc. The preparation methods of FRP include hand lay-up molding, compression molding, winding molding And the pultrusion molding method, wherein the compression molding method is to put the powdery, granular or fibrous plastic into the mold cavity at the molding temperature, and then press the closed film to form and solidify it. When the advanced molding equipment is producing FRP, it is necessary to heat the molding compound to melt it, and then squeeze it into the mold through the riser tube. During this process, the plastic in the molten state easily absorbs the surrounding air, resulting in the production of FRP products. There are some cavities and air bubbles in it, which affects the quality of the product, and then reduces the practicability of the existing FRP molding device, and the existing molding device cannot cool the material rapidly after the material is molded, and due to the use of The way of high temperature and high pressure makes it difficult to separate the finished product from the mold, which affects production efficiency

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