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Middle bundle core

A beam core and fork technology, applied to the types of packaging items, applications, special packaging items, etc., can solve the problems of complex shrapnel structure, irreversible deformation, etc., and achieve the effect of not being easily irreversible deformation, low manufacturing cost, and easy mold opening

Pending Publication Date: 2017-10-10
ZHEJIANG AXILONE SHUNHUA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a center beam core in which the helix and the fork are tightly assembled, which solves the problem that the structure of the shrapnel on the fork in the existing center beam core is complex and prone to irreversible deformation

Method used

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Examples

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Embodiment Construction

[0030] like figure 1 As shown, an existing middle beam core includes a middle beam 1, a spiral 2, a fork 4 and a bead 3, which are coaxially threaded together from the outside to the inside in sequence, and the outer wall of the fork is provided with two convex rings, forming two The limit step, which cooperates with the two ends of the screw 2, limits its axial movement. like figure 2 As shown, there is a gap of about 0.1 mm between the top end of the screw 2 and the limit step 42 due to the machining error.

[0031] like image 3 and 5 As shown, the beam core in the present invention is also composed of a middle beam 1, a helix 2, a fork 4 and a bead 3. The inner wall of the helix 2 has a helical groove 21, and the fork 4 is provided with a guide groove 41 arranged along its axial direction. The outer wall of the bead 3 is provided with two protrusions 31 extending into the groove 21 through the guide groove 41 , and the middle beam 1 is fixedly sleeved on the outer per...

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Abstract

The invention discloses a middle bundle core comprising a fork and a spiral; an outer wall of the fork is provided with a stop step which is used for limiting the axial movement of the spiral; the spiral is provided with an annular elastic stretching portion; the elastic stretching portion is provided with multiple groove holes which are arranged in the circumferential direction so that an inclined elastic deforming strip is formed between adjacent groove holes. According to the invention, an elastic stretching portion is formed through opening holes in the side wall of the spiral so that it is easy for die sinking and the manufacture cost is low. The elastic deforming strip is obliquely arranged so as to achieve the same expansion and contraction quantity. Compared with present structures, small deformation is required by the elastic deforming strip so that irreversible deformation is not liable to occur.

Description

technical field [0001] The invention relates to the technical field of lipstick or lipstick packaging, in particular to a middle beam core. Background technique [0002] Lipsticks or lip balms are commonly used cosmetics for women, generally in paste or fluid form, and are placed in packaging tubes. The packaging tube is mainly composed of a cover body, a base and a middle beam core. Among them, the middle beam core is mostly composed of four parts: beads, forks, spirals and middle beams. The beads are the containers for the paste, and the forks and the spirals cooperate to drive the beads. Movement, the paste is pushed out or hidden in the packaging tube, and the middle bundle is fixed with the screw, which plays a decorative role. [0003] For example, the patent document whose publication number is CN201767295U discloses a middle beam core of a lipstick tube, which includes a middle beam, a helix, a fork and a bead that are coaxially sheathed in sequence from outside to ...

Claims

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Application Information

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IPC IPC(8): A45D40/00A45D40/04
CPCA45D40/00A45D40/04A45D40/06
Inventor 房永庆朱卫锋王林斌徐沛军
Owner ZHEJIANG AXILONE SHUNHUA ALUMINUM IND
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