Adhesive-free type lipstick packaging pipe

Abstract

The invention discloses an adhesive-free type lipstick packaging pipe which comprises a bottom cover and a median bundle core arranged in the bottom cover, wherein the median bundle core comprises a median bundle and a median segment which are mutually fixed, a helix rotatably arranged in the median bundle in a penetrating manner, and a bead positioned in the median bundle and driven by the helix to axially slide, matched rotary linkage parts are arranged between the periphery of the helix and the inner wall of the bottom cover, matched axial drop-preventing parts are arranged between the periphery of the median bundle core and the inner wall of the bottom wall, the bottom cover comprises an inner bottom cover and an outer bottom cover, matched clamping structures are arranged between the inner bottom cover and the bottom of the outer bottom cover, and a welding groove matched with the upper end part of the outer bottom cover is formed in the inner bottom cover. According to the adhesive-free type lipstick packaging pipe, the median bundle core is connected with the inner bottom cover and the inner bottom cover is connected with the outer bottom cover by adopting a mechanical or welding manner, and an adhesive connection manner in the conventional process is replaced, so that the adhesive-free type lipstick packaging pipe is simply produced and assembled, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the field of cosmetic packaging, in particular to a lipstick packaging tube structure. Background technique [0002] At present, makeup has become an indispensable part of people's daily life. The form of cosmetics is also various, such as powder, liquid, paste and so on. In order to facilitate the use of cosmetics, people generally make different cosmetics into different shapes and pack them in suitable containers. Among them, vermicelli-shaped cosmetics, such as lipstick, lipstick, concealer, skin whitening sticks and sunscreen sticks, are generally designed and manufactured in vermicelli tubes. The vermicelli tube includes a top cover, a bottom cover and a center beam core. Wherein, the center beam core of the core part is composed of a center beam, a helix, a middle segment and beads arranged coaxially. [0003] The Chinese patent document whose notification number is CN201248464Y discloses a kind of lipstick tube middl...

AI Technical Summary

Problems solved by technology

[0005] However, the bottom cover of the packaging structure of the lipstick tube described in the above-mentioned patent generally adopts a structure combining aluminum metal and plastic, and the two must be bonded with glue, and the use of glue is easy to pollute the surface of the product, increasing the link of manual input and wiping , making the process complicated and increasing the manufacturing cost

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