CN208118187U

CN208118187U - A kind of PET bottle base

Info

Publication number: CN208118187U
Application number: CN201820235821.7U
Authority: CN
Inventors: 黄伟均; 高永盛; 冯景维
Original assignee: Heshan Cheng Cheng Plastic Products Co Ltd
Current assignee: Heshan Cheng Cheng Plastic Products Co Ltd
Priority date: 2018-02-09
Filing date: 2018-02-09
Publication date: 2018-11-20
Anticipated expiration: 2028-02-09

Abstract

The utility model discloses a kind of PET bottle bases, including the bottle base age of a draught animal and bottle base base body, the outside of the bottle base age of a draught animal has screw thread, the outside of the bottle base age of a draught animal is equipped with locating slot, the bottle base base body is enclosed by inner sidewall and lateral wall, the cross section of the inner sidewall and lateral wall constitutes a cyclic annular base body, and the wall thickness at the first central axis both ends of the ring-type base body is greater than the wall thickness at the second central axis both ends of the cyclic annular base body, and first central axis and second central axis are arranged.The utility model is suitable for being blow molded flat bottle, and corner is blow molded in place, and it is good to blow bottle effect for uniform wall thickness.

Description

A kind of PET bottle base

Technical field

The utility model relates to a kind of bottle bases, and in particular to a kind of PET bottle base.

Background technique

In current PET bottle base product, shape is essentially all the cylinder that cross section is annulus, the bottle of this shape Base design difficulty is relatively small, and corresponding mould structure is also fairly simple, easy to process, for blowing round or length and width difference not Big bottle has a relatively good effect, but flat appearance bottle biggish for some Aspect Ratios, is with existing cross section After the PET bottle base blow molding of annulus, body wall unevenness is even, or even the corner position of many outer profiles is not blown not come out, and is influenced bottle and is blown Mould effect.Therefore, in order to avoid disadvantage existing in the prior art, it is necessary to make improvement to the prior art.

Utility model content

The purpose of the utility model is to overcome shortcoming and deficiency in the prior art, provide a kind of can improve and are blow molded effect PET bottle base.

The utility model is realized through the following technical scheme：

The outside of a kind of PET bottle base, including the bottle base age of a draught animal and bottle base base body, the bottle base age of a draught animal has screw thread, the bottle The outside of the base age of a draught animal is equipped with locating slot, and the bottle base base body is enclosed by inner sidewall and lateral wall, the inner sidewall and outside The cross section of wall constitutes a cyclic annular base body, and the wall thickness at the first central axis both ends of the ring-type base body is greater than the cyclic annular base body The wall thickness at the second central axis both ends, first central axis and second central axis are arranged.

Further, the wall thickness at the first central axis both ends of the cyclic annular base body it is identical and along the wall thickness of cyclic annular base body two sides by It is decrescence small.

Further, first central axis is transverse central axis or vertical central axis.

Further, the cross section of the inner sidewall is circle, and the cross section of the lateral wall is in oval or described The cross section of side wall is ellipse, and the cross section of the lateral wall is circle.

Compared with the existing technology, the utility model by adjusting cyclic annular base body Thickness Distribution so that wall thickness biggish one Side can be adapted with bottle blowing die chamber maximum inner diameter direction, in this way the bottle uniform wall thickness of blow molding out, and be blown some difficulties Bottle profile corner position can also make be blow molded effect it is fine, it is very mellow and full, blow molding effect it is good, high yield rate.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model PET bottle base；

Fig. 2 is the sectional view along A-A of Fig. 1.

In figure：The 1- bottle base age of a draught animal；2- bottle base base body；3- locating slot；4- inner sidewall；5- lateral wall；6- ring-type base body.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, fall within the protection scope of the utility model.

A kind of PET bottle base of the utility model as depicted in figs. 1 and 2, including the bottle base age of a draught animal 1 and bottle base base body 2, bottle base tooth The outside of mouth 1 has screw thread, and the outside of the bottle base age of a draught animal 1 is equipped with locating slot 3, and bottle base base body 2 is enclosed by inner sidewall 4 and lateral wall 5 It forms, the cross section of inner sidewall 4 and lateral wall 5 constitutes a cyclic annular base body 6, the wall thickness at the first central axis both ends of cyclic annular base body 6 Greater than the wall thickness at the second central axis both ends of cyclic annular base body 6, the first central axis and the second central axis are arranged.Locating slot 3 has It is matched conducive to bottle base when blowing bottle with the positioning convex tendon of bottle blowing die chamber, convenient for fixed bottle base, so that the first center of cyclic annular base body 6 Axis both ends are corresponding with bottle blowing die chamber maximum inner diameter direction, improve blow molding effect.

The identical and wall thickness along cyclic annular 6 two sides of base body of the wall thickness at the first central axis both ends of cyclic annular base body 6 is gradually reduced, and is had The wall thickness of bottle is blow molded out more evenly conducive to raising.First central axis is transverse central axis or vertical central axis.

As a kind of specific embodiment, the cross section of inner sidewall 4 is circle, and the cross section of lateral wall 5 is ellipse.It is ellipse The wall thickness at circular long axis both ends is maximum, should be adapted with bottle blowing die chamber maximum inner diameter direction.

As another specific embodiment, the cross section of inner sidewall 4 is ellipse, and the cross section of lateral wall 5 is circle. The wall thickness at the short axle both ends of ellipse is maximum, should be adapted with bottle blowing die chamber maximum inner diameter direction.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims

1. a kind of PET bottle base, it is characterised in that：Including the bottle base age of a draught animal and bottle base base body, the outside of the bottle base age of a draught animal has spiral shell The outside of line, the bottle base age of a draught animal is equipped with locating slot, and the bottle base base body is enclosed by inner sidewall and lateral wall, the inside The cross section of wall and lateral wall constitutes a cyclic annular base body, and the wall thickness at the first central axis both ends of the ring-type base body is greater than the ring The wall thickness at the second central axis both ends of shape base body, first central axis and second central axis are arranged.

2. PET bottle base according to claim 1, it is characterised in that：The wall at the first central axis both ends of the ring-type base body Thick identical and along cyclic annular base body two sides wall thickness is gradually reduced.

3. PET bottle base according to claim 1, it is characterised in that：First central axis is transverse central axis or longitudinal direction Central axis.

4. PET bottle base according to claim 1, it is characterised in that：The cross section of the inner sidewall is circle, the outside The cross section of wall is that the cross section of the oval or described inner sidewall is ellipse, and the cross section of the lateral wall is circle.