CN216709939U

CN216709939U - Plastic bottle blank without buckle

Info

Publication number: CN216709939U
Application number: CN202220243644.3U
Authority: CN
Inventors: 何镇强; 卢义平
Original assignee: Pinghu Haoxin Plastic Co ltd
Current assignee: Pinghu Haoxin Plastic Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-10
Anticipated expiration: 2032-01-28

Abstract

The utility model belongs to the technical field of plastic bottle blanks, and particularly relates to a plastic bottle blank without a buckle, which comprises a bottle opening, a bottle neck, a bottle body and a bottle bottom, wherein the bottle neck is arranged at the bottom of the bottle opening, the bottle body is arranged at the bottom of the bottle neck, the bottle bottom is arranged at the bottom of the bottle body, an annular groove is formed in the bottle opening, an expansion groove is formed in the inner surface of the bottle body, and excess materials are arranged at the bottom of the bottle bottom. The utility model sets a circle of evenly distributed expansion grooves on the inner surface of the bottle body, so that the bottle body is better deformed in the blow molding expansion process, and the annular groove is designed at the bottle mouth, so that the smooth bottle mouth is convenient for clamping in the blow molding process.

Description

Plastic bottle blank without buckle

Technical Field

The utility model relates to the technical field of plastic bottle blanks, in particular to a plastic bottle blank without a buckle.

Background

The plastic bottle is produced through injection molding in an injection molding machine and blow molding in a bottle blowing machine before the bottle blank is hardened. The general bottle embryo is the test tube form, and the bottle embryo that constitutes by embryo mouth, embryo neck, embryo body and embryo bottom is divided into and takes the buckle and does not take the buckle two kinds, and the difference between the two is that the bottleneck department of bottle embryo, and the bottleneck is smooth does not take the buckle. In the process of blow molding of the existing bottle blank without a buckle, the deformation rate of the bottle body part is low, and the situation that materials are not blown enough easily occurs at the bottom part of the bottle. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plastic bottle blank without a buckle, which solves the problems that the deformation rate of a bottle body part is slower and the situation that materials are not blown enough easily occurs at the bottom part of a bottle in the blow molding process of the existing bottle blank without the buckle.

In order to achieve the purpose, the utility model provides the following technical scheme: the plastic bottle blank without the buckle comprises a bottle opening, a bottle neck, a bottle body and a bottle bottom, wherein the bottle neck is arranged at the bottom of the bottle opening, the bottle body is arranged at the bottom of the bottle neck, the bottle bottom is arranged at the bottom of the bottle body, an annular groove is formed in the bottle opening, an expansion groove is formed in the inner surface of the bottle body, and excess materials are arranged at the bottom of the bottle bottom.

Preferably, the number of the annular grooves is two, and the two annular grooves are uniformly distributed on the bottle mouth. Through the design of the annular groove, the smooth bottle mouth is convenient to clamp during blow molding.

Preferably, the number of the expansion grooves is multiple, and the expansion grooves are uniformly distributed on the bottle body. Through the design of the expansion groove, the bottle body can be better deformed in the blow molding expansion process.

Preferably, the excess material is in a rectangular block shape, and the radian of the inner surface of the excess material is consistent with that of the inner surface of the bottle bottom. Through the design of clout for the bottle end is at the enlarged in-process of blow molding, has sufficient enlarged scale volume, prevents that the bottle end material from being blown brokenly inadequately.

Preferably, the bottleneck is provided with an arc surface, and the inner diameter of the bottleneck is larger than that of the bottle body. The arrangement of the arc surface of the bottle neck plays a role in stable transition between the bottle mouth and the bottle body.

Preferably, the bottle body is cylindrical, and the inner diameter of the bottle body from top to bottom is kept consistent. The shape of the body determines the overall blow-molded shape.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model sets a circle of evenly distributed expansion grooves on the inner surface of the bottle body, so that the bottle body is better deformed in the blow molding expansion process, and the annular groove is designed at the bottle mouth, so that the smooth bottle mouth is convenient for clamping in the blow molding process.

2. The excess material is arranged at the bottom of the bottle, and the radian of the inner surface of the excess material is consistent with that of the inner surface of the bottle bottom, so that the bottle bottom has enough expansion amount in the blow molding expansion process, and the bottle bottom material is prevented from being blown to be broken insufficiently.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present invention;

fig. 3 is a top view of the body of fig. 2 of the present invention.

In the figure: 1. a bottle mouth; 2. a bottleneck; 3. a bottle body; 4. a bottle bottom; 5. an annular groove; 6. an expansion slot; 7. and (5) remainder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1-3, a plastic bottle preform without a buckle includes a bottle mouth 1, a bottle neck 2, a bottle body 3 and a bottle bottom 4, the bottle neck 2 is disposed at the bottom of the bottle mouth 1, an arc surface is disposed on the bottle neck 2, the inner diameter of the bottle neck 2 is larger than the inner diameter of the bottle body 3, and the arc surface of the bottle neck 2 is disposed to achieve a smooth transition effect between the bottle mouth 1 and the bottle body 3.

Referring to fig. 1 and 2, a bottle body 3 is disposed at the bottom of the bottle neck 2, the bottle body 3 is cylindrical, the inner diameters of the bottle bodies 3 are consistent from top to bottom, and the shape of the bottle body 3 determines the shape of the bottle after blow molding.

Please refer to fig. 2 and 3, the bottom of the bottle body 3 is provided with a bottle bottom 4, the bottle mouth 1 is provided with two annular grooves 5, the number of the annular grooves 5 is two, the two annular grooves 5 are uniformly distributed on the bottle mouth 1, and by the design of the annular grooves 5, the smooth bottle mouth 1 is convenient for clamping during blow molding, the inner surface of the bottle body 3 is provided with a plurality of expansion grooves 6, the number of the expansion grooves 6 is multiple, the expansion grooves 6 are uniformly distributed on the bottle body 3, and by the design of the expansion grooves 6, the bottle body 3 is better deformed in the process of blow molding expansion.

Referring to fig. 1 and 2, the remainder 7 is arranged at the bottom of the bottle bottom 4, the remainder 7 is rectangular, the radian of the inner surface of the remainder 7 is consistent with that of the bottle bottom 4, and the design of the remainder 7 enables the bottle bottom 4 to have enough expansion in the process of blow molding expansion, so as to prevent the bottle bottom 4 from being blown insufficiently.

The specific implementation process of the utility model is as follows: in the blow molding process, the bottle mouth 1 and the bottle neck 2 are not moved, the bottle body 3 and the bottle bottom 4 are expanded and thinned under the action of internal air pressure, the outer side surfaces of the bottle body 3 are molded in a mold of a plastic bottle, the smooth bottle mouth 1 can be clamped easily by the annular groove 5 at the bottle mouth 1, the inner surface of the bottle body 3 is provided with a circle of expansion grooves 6 which are uniformly distributed, the bottle body 3 is enabled to deform better in the blow molding expansion process, the bottle bottom 4 is provided with a remainder 7, the inner surface of the remainder 7 is consistent with the radian of the inner surface of the bottle bottom 4, and therefore the bottle bottom 4 is enabled to have enough expansion amount in the blow molding expansion process, and the bottle bottom 4 is prevented from being broken by blowing insufficient materials.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a do not take plastic bottle embryo of buckle, includes bottleneck (1), bottleneck (2), body (3) and bottle end (4), its characterized in that: the bottom of bottleneck (1) is provided with bottleneck (2), the bottom of bottleneck (2) is provided with body (3), the bottom of body (3) sets up bottle end (4), be provided with annular groove (5) on bottleneck (1), the internal surface of body (3) is provided with expansion groove (6), the bottom of bottle end (4) is provided with clout (7).

2. The plastic bottle preform without the snap fastener of claim 1, wherein: the number of the annular grooves (5) is two, and the two annular grooves (5) are uniformly distributed on the bottle mouth (1).

3. The plastic bottle preform without the snap fastener of claim 1, wherein: the number of the expansion grooves (6) is multiple, and the expansion grooves (6) are uniformly distributed on the bottle body (3).

4. The plastic bottle preform without the snap fastener of claim 1, wherein: the excess material (7) is rectangular block-shaped, and the radian of the inner surface of the excess material (7) is consistent with that of the inner surface of the bottle bottom (4).

5. The plastic bottle preform without the snap fastener of claim 1, wherein: the bottle neck (2) is provided with an arc surface, and the inner diameter of the bottle neck (2) is larger than that of the bottle body (3).

6. The plastic bottle preform without the snap fastener of claim 1, wherein: the bottle body (3) is cylindrical, and the inner diameter of the bottle body (3) from top to bottom is kept consistent.