Square hole plastic injection molding machine

Abstract

The invention relates to a plastic molding device used in the geogrid production industry, in particular to a square hole plastic injection molding machine. According to the square hole plastic injection molding machine, a whole sizing strip belt penetrates into a feeding channel, and the sizing strip belt is locked due to locking of a non-return cylinder; a belt feeding cylinder is used for feeding the sizing strip belt into a material cutting cavity; the non-return cylinder works to prevent retreating of the sizing strip belt; a material cutting movable cutter and a material cutting fixed cutter are used for cutting off materials; the cut off materials are pushed into a square injection molding channel; and the materials in the injection molding channel then pass through a temperature lowering area and a temperature rising area, and finally enter a mold cavity for sizing. According to the square hole plastic injection molding machine, the product quality success rate reaches 99%, thepower volume is small, a plurality of square hole plastic injection molding machines can be installed side by side, the injection molding material temperature is low, the convex joint molding rate ishigh, the product appearance is attractive, and normal production can be achieved regardless of the width and the thickness of the strip belt.

Description

technical field [0001] The invention relates to a plastic molding equipment used in the geogrid production industry, in particular to a square-hole plastic injection molding machine. Background technique [0002] In the geogrid production industry, the existing screw injection molding machines and single-rod cylindrical injection molding machines are all in the shape of a round hole. The problems and disadvantages of it are: (1) It is large in size and cannot be installed, and it is impossible to use multiple machines side by side. The reason is that the screw needs to rotate to melt the plastic, because the rotating hydraulic motor has a large volume and a large loading capacity at the rear; (2) The temperature of the molten material is too high to meet the low temperature molding requirements of this product, because the diameter of the discharge port is small and the resistance is large , so the material temperature is super high (200°C-240°C). [0003] In the geogrid pr...

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Problems solved by technology

[0002] In the geogrid production industry, the existing screw injection molding machines and single-rod cylindrical injection molding machines are all in the shape of round holes. The problems and shortcomings are: (1) It is large in size and cannot be installed, and it is impossible to use multiple machines side by side.

The reason is that the screw needs to rotate to melt the plastic, because the rotating hydraulic motor has a large volume and a large rear loading capacity; (2) The temperature of the molten material is too high to meet the low-temperature molding requirements of this product, because the diameter of the discharge port is small and the resistance is large , so the material temperature is super high (200°C-240°C)

[0003] In the geogrid production industry, there are problems with the existing geogrid bump machines: molding injection is injected into dozens of mold cavities by one injection molding machine, the produced products have ugly appearance, and the measurement is not allowed to change at any time. When the belt is narrow, thin, or climate temperature changes, it cannot be produced normally, and the daily production capacity is low (1500m 2 -2000m 2 ), the reason is that the melted raw material of an injection molding machine is injected into the mold cavity of the product for a long time, the temperature of the material is high, the injection pressure of the single hole of the mold is high, there are many faults, the cooling system is poor, and the setting time is long

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