Exhausting structure of thin-wall injection molding die

Abstract

The invention discloses an exhaust structure for a thin-walled injection mould, which consists of a group of exhaust plates, a pedestal and a die cavity plate. The structure is characterized in that the group of the exhaust plates are arranged in the pedestal in sequence by a positioning mode of a hanging table; and then an assembly is arranged in the die cavity plate; the pedestal and the die cavity plate are connected by a mode of fixing by bolts; lateral surfaces of each exhaust plate are provided with a transverse exhaust slot and a vertical exhaust slot respectively; the upper part of the transverse exhaust slots on the lateral surface of the exhaust plate is provided with a plurality of shallow vertical exhaust slits communicated with the transverse exhaust slot; and during exhausting, gas in a die cavity reaches the transverse exhaust slot on the exhaust plate from the exhaust slits on the exhaust plate, enters the vertical exhaust slot on the exhaust plate, enters a vertical exhaust groove on the pedestal, reaches an exhaust hole on the pedestal, and is exhausted out of the die cavity through an exhaust hole on the die cavity plate.

Description

【Technical field】 [0001] The invention relates to an exhaust structure of a mold, in particular to an exhaust structure of a thin-wall injection molding mold, and belongs to the field of thin-wall (injection) molding mold manufacturing. 【Background technique】 [0002] The rapid growth of the communication and portable electronics market has created a huge demand for thin-walled applications and technologies. These handheld or portable devices, such as mobile phones, PDAs and notebook computers, require smaller, thinner (less than 1.2mm) lightweight plastic casings , while also having to provide the same mechanical strength as conventional components. Other new applications for thin-wall molding include the production of medical, optical and electronic components or components with microscale features. Thin-wall molding is also favored by cost-conscious end consumers in large applications such as computer monitor housings and automotive dashboards, as reduced wall thickness ...

AI Technical Summary

Problems solved by technology

[0004] At present, the microporous exhaust components commonly used in thin-walled molds, such as breathable steel and powder sintered alloy exhaust components, are loose in texture and poor in strength, and they are easily squeezed and deformed by strong pressure during injection molding. Although they can also be used as Exhaust components of thin-wall injection molds, but seriously shorten the service life of the mold, the maximum service life of the mold can only reach 500,000 times

Images