Injection molding impeller and mold of automatic aerator

Abstract

The invention relates to an injection molding impeller of an automatic aerator. The injection molding impeller is mainly composed of a conical body, blades, a fixed plate, an upper support plate and a lower support plate and the like, wherein the fixed plate is provided with a connection hole; the fixed plate is connected with the conical body through the upper support plate and the lower supportplate; the outer conical surface of the conical body is connected with a plurality of blades; the back side B of each blade is provided with a reinforcing rib to support the blade; and a window is arranged in the space of the reinforcing ribs. The mold of the automatic aerator is mainly composed of a movable die, a stationary die and the like, wherein the movable die is provided with a main core and a plurality of subsidiary cores; the subsidiary cores enter the stationary die; the sides of the subsidiary cores are matched with the stationary die to form the upper support plate and the window; the main core is arranged in the mold; the cavity of each blade is provided with a movable block and a stationary block; the movable blocks are connected with an angle ejector rod; a workpiece and the angle ejector rod are pushed out together by a demoulding mechanism in demoulding; the movable block slides out obliquely by virtue of the angle ejector rod; and the workpiece is straightly pushed out under the guiding of the subsidiary core and is separated from the movable block.

Description

technical field [0001] The invention relates to an aerator, in particular to an integral injection molding impeller and a mold of an aerator, which belongs to fish farming machinery. Background technique [0002] The aerator is a life-saving and stimulating equipment for fish and shrimp in aquaculture. Existing mechanical aerators mainly include three types: water wheel type, impeller type and water spray type, among which the impeller type aerator is the most widely used. The impeller of the impeller type aerator has metal welded impeller and plastic impeller. Most of the plastic impellers are assembled. Some people also propose integral injection molding impellers such as patent number: 02227273.9. There are many upright ribs, the ribs block water during work, which affects the efficiency of oxygenation, and the patent does not disclose the mold structure, and the specification and drawings of the patent do not disclose the demoulding mechanism, so it cannot be implemente...

AI Technical Summary

Problems solved by technology

The impeller of the impeller type aerator has metal welded impeller and plastic impeller. Most of the plastic impellers are assembled. Some people also propose integral injection molding impellers such as patent number: 02227273.9. There are many vertical ribs, the ribs block water during work, which affects the efficiency of oxygenation, and the patent does not disclose the mold structure, and the patent specification and drawings do not disclose the demoulding mechanism, so it cannot be implemented

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