Water pump mold

Abstract

The invention discloses a water pump mold. The mold comprises an upper mold and a lower mold, wherein the upper mold is divided into a first inner core and a first cavity; the first inner core is equally divided into four first moving blocks; each first moving block is divided into an upper layer and a lower layer which are detachably connected with each other; the lower mold is divided into a second inner core and a second cavity; the second inner core is further divided into a pentagonal block in the center and five second moving blocks located on the periphery of the pentagonal block; each second moving block is divided into an upper layer, a middle layer and a lower layer; the position, corresponding to a connecting section, of the lower mold is divided into two sections along the perpendicular bisector of a water inlet flange, and the two sections are connected with corresponding positions of the water inlet flange and a circular section respectively; a screw hole is formed in the upper mold or the lower mold in a core pulling manner. The manufactured mold is formed in one step and is not required to be divided into three blocks and bonded as the original technology, the problem that a foam product is required to be bonded after being produced is solved, change of the geometrical shape of the foam product in the bonding process is avoided, the accuracy of the size is guaranteed, the screw hole is formed in one step, and subsequent hole machining procedure is omitted.

Description

technical field [0001] The invention relates to a mold, in particular to a water pump mold. Background technique [0002] The current water pump lost foam mold is a process plan that divides the product into three pieces to make the mold. Its characteristics: 1. It is necessary to bond the three pieces of foam products produced by the mold together. The technical requirements for workers are relatively high, and special glue is required; 2. During the bonding process, there are some places that are not bonded due to carelessness. If it is in place, it will cause cracks and dimensional errors in the casting product, and it will become a scrap product; 3. It is easy to cause the geometric shape of the foam product to deform; 4. The production efficiency of casting is low. [0003] In addition, the screw holes on the flanges of the water inlet and outlet are all made in the later stage, and the process of continuing to process holes is required. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water pump mold that solves the above-mentioned problems, solves the problem that foam products need to be bonded after they are produced, avoids the change of the geometric shape of foam products during the bonding process, and ensures the size, water inlet and outlet method. All the screw holes on the blue plate are made, eliminating the need for subsequent processing of holes

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