What types of structural designs are there for Empty Aluminum Lipstick Tubes?

The structural design of Empty Aluminum Lipstick Tubes can be divided in detail from the functional trigger mechanism, morphological classification, assembly method and core component configuration. The magnetic structure uses built-in magnets to close the cover and the outer tube, and uses the principle of magnetic adsorption to ensure that the cover fits tightly to avoid accidental opening during transportation or use. The dual magnets are symmetrically arranged and the magnets are symmetrically embedded at the bottom of the cover and the tube mouth to enhance the stability of the suction. The magnetic + buckle composite structure combines magnetic force and physical buckles to further improve the reliability of closure, which is common in high-end products. It is easy to operate, silent when closed, and the metal magnetic texture can improve the grade of the product; however, the magnet needs to be treated with anti-oxidation, and the magnetic strength needs to be controlled to avoid difficulty in opening and closing for users.
The push-to-pop-up structure adopts a mechanical linkage design of springs and guide components, and the paste is triggered to pop out by pressing the top. The elastic catch component switches the pressing state through the cooperation of the movable seat and the spring. The double-track guide system sets an axial sliding track in the guide cylinder to ensure a smooth and unstuck pressing process. One-handed operation is convenient and compact; the spring rebound force and component tolerances need to be precisely controlled to prevent abnormal noise or component wear.
The rotary structure relies on the mechanical transmission of the spiral groove and the ball fork screw to push the paste up through the rotating base. The double-headed spiral groove design improves the rotation efficiency and reduces friction loss. The shrapnel positioning mechanism sets shrapnel and elastic points on both sides of the twisting bottom tube to provide clear "sense of position" feedback. The mainstream design of traditional lipstick tubes is suitable for high-viscosity pastes.
The elastic ring buckle sets a ring-shaped protrusion on the inner wall of the cover body, which bites with the groove of the outer tube (such as the classic buckle ring design). The outer bottom of the multi-point convex buckle position sets multiple convex points to cooperate with the buckle position of the cover body to enhance the uniformity of multi-point force (such as the buckle position design of the glue-free lipstick tube). The structure is simple and the cost is low; however, the buckle angle and material toughness need to be optimized to avoid deformation after repeated opening and closing.
The round tube body meets the ergonomic grip requirements, has low processing difficulty, and is suitable for most filling equipment. The square tube body has an angular design that enhances visual impact, but the problem of sharp corners needs to be dealt with, and the feel is often optimized through chamfering or rolling. Streamlined surfaces are formed by slider insert molds to achieve appearances such as relief or wavy patterns. Polyhedral structures such as hexagonal or diamond cut surfaces enhance the light refraction effect, and need to be combined with electroplating or oxidation processes to enhance the metal texture. The development cost of special-shaped molds is high, and the stress concentration problem during the stretching of aluminum needs to be solved.
Traditional adhesive assembly relies on glue to fix parts, such as adding weighted iron blocks to the base to improve the feel, but there is a risk of debonding due to aging of the glue. Glue-free assembly technology achieves self-locking of parts through precise buckle and anti-rotation rib design. Multi-level buckle systems such as the first buckle of the outer cover, the third buckle of the outer bottom and the second buckle of the fork ensure a stable structure. The anti-rotation ribs are cross-coordinated, and internal and external anti-rotation ribs are set between the fork and the outer bottom to prevent rotation deviation. Environmentally friendly and avoid glue compatibility issues, suitable for high-end products that are sensitive to chemical residues.
The replaceable core structure uses a standardized mid-core interface to achieve paste replacement and extend the service life of the tube. The leak-proof sealing design adds a silicone seal ring at the tube mouth or uses a vacuum spinning process, which is suitable for liquid lip glaze. Tactile feedback enhancement, such as the "click" sound design of the magnetic cover or the damping gradient change of the rotating base, enhances the user interaction experience.