Injection molding processing device

Abstract

The present invention relates to an injection molding processing device comprises a promoter spray gun, an initiator spray gun and a manipulator controlled by numerical control programming. The manipulator comprises an upper connecting seat, more than three connecting rods and a lower connecting seat; upper and lower ends of the parallel connected connecting rods are respectively in spherical hinge joint with the upper connecting seat and the lower connecting seat; and the connecting rods are in different length. The promoter spray gun and the initiator spray gun are arranged on the lower connecting seat; and an intersection point of an axial lead of a nozzle of the promoter spray gun and that of a nozzle of the initiator spray gun is at a distance h of 400-600 mm from a nozzle end face of the promoter spray gun or from a nozzle end face of the initiator spray gun, and has an included angle alpha of 15-25 DEG. According to the invention, the manipulator is used to control the accelerator spray gun and the initiator spray gun to move synchronously, so as to uniform the overlapped region of the front and rear injections, improve stability of product quality and shorten the molding time of products.

Description

technical field [0001] The invention relates to a spray forming processing device, which belongs to the technical field of spray forming processing of glass fiber and carbon fiber composite materials. Background technique [0002] The traditional injection molding equipment uses a spray gun to spray glass fiber and resin onto the mold at the same time to make FRP parts. The specific method is to spray the resin added with the initiator and the resin mixed with the accelerator from two spray guns, and at the same time, the continuous glass fiber roving is cut into chopped fibers by the cutter, and sprayed from the fiber cutting injector to make it with The resin is mixed evenly and sprayed onto the mold surface. When it is deposited to a certain thickness, it is compacted with rollers, so that the glass fiber is soaked in the resin, the air bubbles are removed, and the product is formed after curing. [0003] Injection molding is an improvement of hand lay-up, which is a se...

AI Technical Summary

Problems solved by technology

The quality of the entire injection molding process will vary due to different operators. Since the initiator spray gun and the accelerator spray gun are set separately, in the injection molding process, the moving speed of the two spray guns cannot be synchronized, and the area sprayed by the two spray guns When the overlapping area is less than 1 / 3 of the previous spraying area, a uniform and continuous coating cannot be obtained on the product. Since the front and rear coatings cannot be guaranteed to be vertical or cross, uniform coverage cannot be obtained. Therefore, each spraying surface After the spraying is completed, the operator should immediately roll with a pressure roller to flatten the surface, trim the burrs, discharge the air bubbles, and then spray the second layer

In short, the degree of automation of hand-held spray gun injection molding processing is low, and the product quality is unstable

Images