Injection mold and manufacturing method for rotary body

Abstract

The invention discloses an injection mold and a manufacturing method for a rotary body. The injection mold is used for forming a hollow rotary body; a first spiral structure is arranged on the outer wall of the rotary body; the first spiral structure comprises a first spiral section and a second spiral section; the injection mold comprises a mold main body and a spiral forming mechanism arranged on the mold main body, wherein the spiral forming mechanism comprises an outer mold core and an inner mold core; a first spiral forming structure is arranged on the outer mold core; the first spiral forming structure comprises a first forming section and a second forming section; the outer mold core comprises a line component and two outer core sleeves; the line component is positioned between the two outer core sleeves and can be separately spliced with the two outer core sleeves; at least part of the first forming section is positioned on one outer core sleeve; at least part of the second forming section is positioned on the other outer core sleeve; and a drive mechanism can drive the two outer core sleeves to spirally move to separate from the rotary body. The spiral structures formed by the injection mold are not limited in shapes, number and parameters.

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

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