CN217446958U

CN217446958U - Middle bundle core and packing tube

Info

Publication number: CN217446958U
Application number: CN202220246127.1U
Authority: CN
Inventors: 房永庆; 朱卫锋; 黄君杰
Original assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Current assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-09-20
Anticipated expiration: 2032-01-29

Abstract

The application discloses well bundle core and packing tube, wherein well bundle core is well restricted, locate including fork, rotation cover the spiral of fork, slidable mounting in the fork just receives screw drive's pearl, the pearl is bilayer structure and includes: the driving cylinder is provided with a first bottom wall and a first side wall, and a sliding block matched with the spiral is arranged on the first side wall; the paste barrel is provided with a second bottom wall and a second side wall and is nested in the driving barrel; the adaptation window has been seted up to first diapire, the second diapire is equipped with and runs through the adaptation window to the axial anticreep spare that the adaptation window border was crossed in the outside bending extension. The technical scheme that this application discloses passes through the structural optimization of pearl, has overcome the problem that the pearl is difficult to the metallization and makes among the prior art when guaranteeing production assembly efficiency to provide the structural basis for packaging structure full metallization and recycle.

Description

Middle bundle core and packing tube

Technical Field

The application relates to the field of cosmetic packaging, in particular to a middle bundle core and a packaging tube.

Background

The packaging tube is used as a carrier of cosmetics, and the central core is a core part and basically comprises three parts, namely a fork, a bead and a spiral. In order to make the appearance of the product beautiful, the middle bundle made of metal materials is sleeved outside the spiral of some products, or the fork of some products is made of metal materials, and other parts are mostly made of high polymer materials by injection molding due to the limitation of processing technology.

For example, chinese patent publication No. CN206896032U discloses a novel tube, which includes a tube body for placement, a housing sleeved outside the tube body, an upper cover engaged with the housing, and a screwing member movably connected to a lower portion of the tube body; the pipe body is made of plastic, the shell is made of metal, and the upper cover is made of plastic; the shell is provided with a thread section, the upper cover is provided with an internal thread matched with the thread section, and the thread section and the shell are integrally formed.

With the increasing demand for environmental protection, it is desirable to recycle plastic and other materials, and similar to the above-mentioned prior art, most of the existing packing tubes are made of metal and plastic, and are difficult to recycle due to the difficulty in disassembly.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application discloses well bundle core is located including fork, rotation cover the spiral of fork, slidable mounting in the fork just receives spiral drive's pearl, the pearl is bilayer structure and includes:

the driving cylinder is provided with a first bottom wall and a first side wall, and a sliding block matched with the spiral is arranged on the first side wall;

the paste barrel is provided with a second bottom wall and a second side wall and is nested in the driving barrel;

the adaptation window has been seted up to first diapire, the second diapire is equipped with and runs through the adaptation window to the axial anticreep spare that the adaptation window border was crossed in the outside bending extension.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the side wall of the fork is provided with a sliding groove extending along the axial direction, the sliding block of the driving cylinder extends out of the sliding groove in the radial direction, and the inner wall of the spiral is provided with a feeding thread acting on the sliding block.

Optionally, a working window is formed in the bottom of the paste barrel, the axial anti-falling piece is arranged on the inner edge of the working window, and when the driving barrel and the paste barrel are assembled with each other, the working window is communicated with the adaptive window.

Optionally, the axial anti-slip part is provided with a plurality of axial anti-slip parts, and the axial anti-slip parts are arranged on the inner edge of the working window at intervals.

Optionally, on the radial cross section of the bead, the axial anti-release member is U-shaped, two ends of the U-shaped opening are distributed on two sides of the bottom of the driving cylinder, and the inner edge of the adapting window is accommodated in the U-shaped opening of the axial anti-release member.

Optionally, the number of the axial anti-slip pieces corresponds to the number of the sliding blocks, and the axial anti-slip pieces and the sliding blocks are arranged correspondingly in the circumferential direction of the beads.

Optionally, the axial anti-slip part and the paste barrel are of an integral structure and are bent to form a U shape so as to be mutually clamped with the inner edge of the adaptive window.

Optionally, the inner wall of the paste barrel is provided with a limiting protrusion for clamping the paste, and the outer wall of the paste barrel abuts against the inner wall of the driving barrel except for the limiting protrusion.

Optionally, the limiting protrusion extends in the axial direction of the paste barrel, and the top end of the limiting protrusion is higher than the sliding block.

Optionally, the driving cylinder and the paste cylinder are all made of metal materials.

The application also discloses a packing tube, which comprises a base, a top cover and the middle bundle core in the technical scheme.

The technical scheme that this application discloses passes through the structural optimization of pearl, has overcome the problem that the pearl is difficult to the metallization and makes among the prior art when guaranteeing production assembly efficiency to provide the structural basis for packaging structure full metallization and recycle.

Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.

Drawings

FIG. 1 is a schematic view of a packing tube according to an embodiment;

FIG. 2 is a schematic view of a mid-bundle core assembly in one embodiment;

FIG. 3 is a schematic representation of the bead structure of FIG. 2;

FIG. 4 is an exploded view of the bead of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the bead of FIG. 3;

fig. 6 is a schematic cross-sectional elevation view of the bead of fig. 5.

The reference numerals in the figures are illustrated as follows:

1. a fork; 11. a chute;

2. spiraling; 21. a feed screw; 23. positioning the convex ring;

3. beads; 31. a slider; 311. a convex strip; 301. a drive cylinder; 3011. adapting a window; 302. a paste barrel; 3021. an axial anti-slip member; 3022. a working window; 32. a limiting bulge;

5. a base;

7. and a top cover.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, the present application discloses a middle bundle core, which includes a fork 1, a spiral 2 rotatably sleeved on the fork 1, and beads 3 slidably mounted on the fork 1 and driven by the spiral 2, wherein the beads 3 have a double-layer structure and include:

the driving barrel 301 is provided with a first bottom wall and a first side wall, and a sliding block 31 matched with the spiral 2 is arranged on the first side wall;

a paste barrel 302 having a second bottom wall and a second side wall and nested in the driving barrel 301;

the first bottom wall is provided with an adapting window 3011, the second bottom wall is provided with an axial anti-falling piece 3021 which runs through the adapting window 3011 and bends outwards to extend over the edge of the adapting window 3011.

The drive cylinder 301 is used for cooperating with the screw 2 to realize movement in the axial direction of the fork 1, and the paste cylinder 302 is used for carrying paste (such as lipstick paste) and realizing movement of the paste relative to the fork 1 along with the movement of the drive cylinder 301. The driving cylinder 301 and the paste cylinder 302 are connected and driven by the mutual matching of the axial anti-slip piece 3021 and the adapting window 3011, in addition to the friction force of the contact parts of the two. Compared with the beads 3 with a single-tube structure in the prior art, the technical scheme disclosed by the application can realize the segmented manufacture and the rapid assembly of the driving tube 301 and the paste tube 302 through the structural optimization of the beads 3, and the beads 3 after the assembly have the advantages of good integrity and high mechanical property. The problem that beads 3 are difficult to metalize and manufacture in the prior art is solved while the production and assembly efficiency is guaranteed, and therefore a structural basis is provided for full metalization and recycling of a packaging structure.

In detail arrangement, referring to the embodiment shown in fig. 4, the bottom of the paste barrel 302 is provided with a working window 3022, the axial anti-slip part 3021 is arranged on the inner edge of the working window 3022, and when the driving barrel 301 and the paste barrel 302 are assembled with each other, the working window 3022 is communicated with the adapting window 3011. On the radial section of the bead 3, the axial anti-slip part 3021 is U-shaped, two ends of the U-shaped opening are distributed on two sides of the bottom of the driving cylinder 301, and the inner edge of the adapting window 3011 is accommodated in the U-shaped opening of the axial anti-slip part 3021. The axial anti-slip part 3021 and the paste barrel 302 are of an integral structure and are bent to form a U shape so as to be mutually clamped with the inner edge of the adapting window 3011. The driving cylinder 301 and the paste cylinder 302 are all made of metal.

In the case of the axial retaining members 3021, in the embodiment shown in fig. 5 to 6, the axial retaining members 3021 are provided in plural numbers and are spaced apart from each other on the inner edge of the working window 3022. The number of the axial direction retaining pieces 3021 corresponds to the number of the sliders 31, and the axial direction retaining pieces 3021 and the sliders 31 are provided in correspondence with each other in the circumferential direction of the beads 3. In the drawings, the number of the axial retaining pieces 3021 is two. Wherein each axial anti-slip element 3021 is located in a position corresponding to one of the limiting protrusions 32.

In the matching arrangement with the paste, referring to the embodiment shown in fig. 4 to 6, the inner wall of the paste tube 302 is provided with a limiting protrusion 32 for clamping the paste, and except for the limiting protrusion 32, the outer wall of the paste tube 302 abuts against the inner wall of the driving tube 301. Referring to fig. 6, the limiting protrusion 32 extends in the axial direction of the paste barrel 302 and the top end of the limiting protrusion 32 is higher than the slider 31. In an implementation manner, the limiting protrusion 32 is implemented by deforming a side wall of the paste barrel 302, that is, a recess is formed at a position corresponding to the limiting protrusion 32 on the outer side of the paste barrel 302, and the recessed position corresponds to the slider 31. On the extension trend of the limiting protrusion 32, the limiting protrusion 32 is in smooth transition, and the protrusion distance of one side of the limiting protrusion 32 far away from the bottom of the paste barrel 302 is smaller than that of one side close to the bottom of the paste barrel 302, so that the paste and the paste barrel 302 can be assembled conveniently.

In the embodiment shown in fig. 2 to 3, in cooperation with other components of the middle bunch core, the side wall of the fork 1 is provided with a slide groove 11 extending along the axial direction, the slide block 31 of the driving barrel 301 extends out of the slide groove 11 in the radial direction, and the inner wall of the screw 2 is provided with a feed screw 21 acting on the slide block 31. In detail, the surface of the slider 31 is formed with one or more convex strips 311, and each convex strip 311 is embedded in the feed screw 21. For example, the slider 31 is made of a metal material, and a relatively precise protrusion 311 structure can be formed by a drawing process. The feed screw 21 is also made of metal material to ensure the precision of the fit with the convex strip 311. One convex strip 311 is embedded in one feed screw 21, so that one slider 31 is simultaneously matched with a plurality of feed screws 21, thereby dispersing the contact stress of the slider 31 and the feed screws 21, preventing local excessive deformation, and enhancing the stability of the sliding of the beads 3.

There are various ways of forming the feed screw 21, and in one embodiment, the feed screw 21 is formed by cutting the inner wall of the screw 2. In another embodiment, the spiral 2 forms the feed thread 21 by deforming the tube wall itself.

In particular, in one embodiment, the feed screw 21 is formed by rolling the wall of the spiral 2 in a combination of rotation and axial feed.

Specifically, in one embodiment, a pipe having a smooth outer peripheral surface is extruded inside and outside the pipe using dies, respectively, such that the inner peripheral surface of the pipe forms the feed screw 21.

In combination with the above, it will be understood that the present application also discloses a packing tube comprising a base 5, a top cover 7 and a core bundle of the above-mentioned technical solution. The operation of the core bundle will be explained in detail below with reference to the drawings.

The packing tube comprises a base 5, a top cover 7 and a middle bundle core, wherein the middle bundle core is positioned in a cavity enclosed by the base 5 and the top cover 7. The middle binding core comprises a fork 1, a spiral 2 rotationally sleeved on the fork 1, and beads 3 slidably mounted in the fork 1 to bear products, wherein the side wall of the fork 1 is provided with a sliding groove 11 extending along the axial direction, the outer wall of each bead 3 is provided with a sliding block 31 extending out of the sliding groove 11 in the radial direction, and the inner wall of the spiral 2 is provided with a feeding thread 21 acting on the sliding block 31. The fork 1, the bead 3 and the spiral 2 in this embodiment are made of metal.

The mounting of the fork 1 inside the spiral 2 comprises in particular: sleeving the spiral 2 outside the fork 1; the screw 2 and the fork 1 are simultaneously pressed on the inner side of the fork 1 and the outer side of the screw 2, a positioning groove extending in the circumferential direction is formed on the fork 1, and a positioning convex ring 23 extending in the circumferential direction and embedded in the positioning groove is formed on the inner wall of the screw 2.

The base 5 is fixedly connected with the spiral 2, and the spiral 2 is wholly accommodated in the base 5. The base 5 and the screw 2 are typically connected by an interference fit, although other means such as adhesive may be used.

The outer wall of the screw 2 is provided with a deformation corresponding to the feed screw 21. The feed screw 21 in this embodiment is produced by deformation of the wall of the spiral 2 in the radial direction, which deformation results in an uneven structure of the outer wall of the spiral 2.

In one embodiment, the base 5 and the top cover 7 are also made of metal and have smooth outer peripheral surfaces. The "smooth" in the present application is not strictly limited to the surface roughness of the component with respect to such a concave-convex structure corresponding to the shape of the feed screw 21.

In one embodiment, the fork 1, the bead 3, the spiral 2, and the base 5 are made of the same metal material.

The application also provides a production process of the packaging tube, in one embodiment, the base 5 is fixedly connected with the bottom of the fork 1, the top cover 7 is sleeved on the middle bundle core, and as shown in fig. 1, the top cover 7 is matched with the base 5 to encapsulate the middle bundle core in the inner space surrounded by the two.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. Well bundle core, including the fork, rotate the cover and locate the spiral of fork, slidable mounting in the fork just receives spiral drive's pearl, its characterized in that, the pearl is bilayer structure and includes:

2. The core bundle of claim 1, wherein the side wall of the fork is provided with a slide groove extending in the axial direction, the slide block of the driving cylinder extends out of the slide groove in the radial direction, and the inner wall of the spiral is provided with a feed screw thread acting on the slide block.

3. The core bundle of claim 1, wherein a working window is formed at the bottom of the paste barrel, the axial anti-falling member is arranged on the inner edge of the working window, and when the driving barrel and the paste barrel are assembled with each other, the working window is communicated with the adapting window.

4. The core bundle of claim 3, wherein the axial escape preventer is provided in plurality and spaced apart on an inner edge of the working window.

5. The core bundle of claim 1, wherein the axial anti-slip member is U-shaped in a radial cross section of the bead, and two ends of the U-shaped opening are located at two sides of the bottom of the driving cylinder, and the inner edge of the fitting window is received in the U-shaped opening of the axial anti-slip member.

6. The core bundle of claim 1, wherein the number of the axial escape preventing members and the number of the sliding blocks correspond, and the axial escape preventing members and the sliding blocks are disposed in correspondence in the circumferential direction of the bead.

7. The core bundle of claim 1, wherein the axial separation preventing member is formed as a single body with the paste barrel and bent to form a U-shape by itself to be engaged with the inner edge of the fitting window.

8. The middle bundle core according to claim 1, wherein a limiting protrusion for clamping the paste is arranged on the inner wall of the paste barrel, the outer wall of the paste barrel abuts against the inner wall of the driving barrel except the limiting protrusion, the limiting protrusion extends in the axial direction of the paste barrel, and the top end of the limiting protrusion is higher than the sliding block.

9. The core assembly of claim 8, wherein the driving barrel and the paste barrel are all made of metal.

10. A packing tube comprising a base, a top and a core of any one of claims 1 to 9.