A kind of manufacturing method of injection mold and rotating body

Abstract

The invention discloses a manufacturing method of an injection mold and a rotating body. The injection mold is used to form a hollow rotating body. A first helical structure is provided on the outer wall of the rotating body. The first helical structure includes a first helical section and a second helical section. The injection mold includes: a mold main body; On the main body of the mold, the spiral forming mechanism includes an outer core and an inner core. The outer core is provided with a first spiral forming structure. The first spiral forming structure includes a first molding segment and a second molding segment. The outer core includes rows Position assembly and two outer core sleeves, the row position assembly is located between the two outer core sleeves and can be spliced ​​with the two outer core sleeves respectively; at least part of the first forming section is located on one of the outer core sleeves, at least part of the second forming The segment is located on the other outer core sleeve; the driving mechanism can drive the two outer core sleeves to spirally move to separate from the rotating body. The shape, quantity and parameters of the helical structure formed by the injection mold are not limited.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a manufacturing method of an injection mold and a rotating body. Background technique [0002] The vacuum cleaner is a cleaning device that uses a motor to drive the blades to rotate at high speed, and generates negative air pressure in the sealed housing to absorb dust. The vacuum cleaner is provided with a rolling brush, and the dust is raised by the rolling brush rotating and beating the ground, thereby improving the dust collection effect. [0003] The roller brush includes a roller brush body and a cleaning piece. The rolling brush body is provided with helical structures such as helically extended ribs or grooves for installing cleaning parts. The existing rolling brush body is generally of a solid structure, resulting in a large weight of the rolling brush body and large energy consumption required for the rolling brush to rotate. Part of the brush body has a ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a manufacturing method of an injection mold and a rotating body, which can solve the problem that the number and shape of the helical structure and the rotation angle around the axis of the rolling brush body are limited. The rolling brush body has good strength and a thin wall thickness. , which helps to reduce the energy consumption required for the rotation of the brush body, and can process a helical structure with variable parameters to better improve the cleaning effect

Images