Special-shaped positioning bottle blowing wall thickness compensation bottle blank

Abstract

The utility model provides a special-shaped positioning bottle blowing wall thickness compensation bottle preform, and relates to the field of bottle preforms, the special-shaped positioning bottle blowing wall thickness compensation bottle preform comprises a bottle preform opening, a bottle preform transition section, a bottle preform middle section and a bottle preform bottom, the bottle preform opening, the bottle preform transition section, the bottle preform middle section and the bottle preform bottom are subjected to integral injection molding, the bottle preform opening is provided with an external thread, and the bottle preform bottom is provided with an internal thread. The bottle blank transition section is arranged in an internal expanding mode from top to bottom, the bottle blank middle section is arranged in a straight cylinder mode, the bottle blank bottom is arranged in an arc shape, and the thicknesses of the two sides of the bottle blank middle section are larger than the thicknesses of the front side and the rear side of the bottle blank middle section. The material of the middle section of the bottle preform is distributed towards the two sides of the long axis of the bottle body, so that the wall thickness of the labeling surface is reduced, the situation of non-uniform wall thickness distribution is not easy to occur when a special-shaped bottle type with a large long-short axis ratio is blown, the shrinkage of the labeling surface is improved, and the labeling function of a product is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bottle embryo, in particular to a bottle embryo with irregular positioning and bottle wall thickness compensation. BACKGROUND

[0002] A bottle embryo is a semi-finished product formed by injection molding and mainly used for the production of plastic bottles. In the production process, plastic raw materials are filled into a mold at a specific temperature and pressure, and a specific shape is formed through injection molding, which is a bottle embryo. Subsequently, the bottle embryo is blown into a plastic bottle commonly seen in our daily life through blow molding.

[0003] The current bottle embryo has a thick wall thickness during blow molding, and therefore needs to be improved. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a bottle embryo with irregular positioning and bottle wall thickness compensation, which can solve the above technical problems.

[0005] The embodiment of the present application provides a bottle embryo with irregular positioning and bottle wall thickness compensation, which comprises a bottle embryo mouth, a bottle embryo transition section, a bottle embryo middle section and a bottle embryo bottom, wherein the bottle embryo mouth, the bottle embryo transition section, the bottle embryo middle section and the bottle embryo bottom are integrally injection molded, the bottle embryo mouth is provided with external threads, the bottle embryo transition section is arranged in an inward expanding manner from top to bottom, the bottle embryo middle section is arranged in a straight cylinder manner, the bottle embryo bottom is arranged in a circular arc manner, and the thickness of the bottle embryo middle section on both sides is greater than that of the front side and the back side of the bottle embryo middle section.

[0006] Preferably, a protruding block is arranged at the lower end of the bottle embryo bottom and is arranged at the center of the bottle embryo bottom.

[0007] Preferably, the thickness of the bottle embryo middle section is greater than that of the bottle embryo mouth and the thickness of the bottle embryo middle section is greater than that of the bottle embryo transition section.

[0008] Preferably, an extension piece is arranged at the connection between the bottle embryo mouth and the bottle embryo transition section, and the extension piece is arranged in a ring shape.

[0009] Preferably, the bottle embryo mouth, the bottle embryo transition section, the bottle embryo middle section and the bottle embryo bottom are made of one of PET, PE and PP.

[0010] The present application has the following beneficial effects:

[0011] The utility model provides a kind of bottle embryo of special-shaped positioning bottle wall thickness compensation, including bottle embryo mouth, bottle embryo transition section, bottle embryo middle section and bottle embryo bottom, the bottle embryo mouth, the bottle embryo transition section, the bottle embryo middle section and the bottle embryo bottom integrally injection molding are formed, the bottle embryo mouth is provided with outer thread, the bottle embryo transition section is from top to bottom and is arranged in the form of inner expansion, the bottle embryo middle section is arranged in the form of straight cylinder, the bottle embryo bottom is arranged in the form of circular arc, the thickness of the both sides of the bottle embryo middle section is greater than the thickness of the front side and rear side of the bottle embryo middle section, the utility model is set by multistage, can make the wall thickness of bottle embryo middle section evenly, the material of bottle embryo middle section is distributed to the both sides of bottle body long axis, to reach the thickness of the wall thickness of label sticking surface is reduced, when blowing the bottle type of special-shaped / long-short axis ratio, it is not easy to exist the condition that wall thickness is unevenly distributed, improve label sticking surface shrinkage, reach the effect of optimizing product label sticking functionality. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the present application, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, on the premise of not paying creative labor, other related drawings can also be obtained according to these drawings.

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the sectional view of the utility model;

[0015] Figure 3 It is another sectional view of the utility model;

[0016] Figure 4 It is the plan view of the utility model.

[0017] The reference signs are respectively:

[0018] 1, bottle embryo mouth;2, bottle embryo transition section;3, bottle embryo middle section;4, bottle embryo bottom;5, outer thread;6, lug;7, extension piece. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application, the technical scheme in the embodiments of the present application is clearly and completely described, obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained based on the embodiments of the application without creative labor by those of ordinary skill in the art are within the scope of the application.

[0021] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0022] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are merely for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In addition, the terms "horizontal", "vertical", "overhanging", and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0025] As Figures 1-4As shown, a bottle embryo with uneven positioning and bottle wall thickness compensation includes a bottle embryo mouth 1, a bottle embryo transition section 2, a bottle embryo middle section 3 and a bottle embryo bottom 4, the bottle embryo mouth 1, the bottle embryo transition section 2, the bottle embryo middle section 3 and the bottle embryo bottom 4 are integrally injection molded, the bottle embryo mouth 1 is provided with external threads 5, the bottle embryo transition section 2 is provided in an inward expanding manner from top to bottom, the bottle embryo middle section 3 is provided in a straight cylinder manner, the bottle embryo bottom 4 is provided in a circular arc manner, the thickness of the two sides of the bottle embryo middle section 3 is greater than the thickness of the front side and the back side of the bottle embryo middle section 3, the bottle embryo middle section 3 is provided in a multi-section manner, the wall thickness of the entire circle of the bottle embryo middle section 3 is uniform, the material of the bottle embryo middle section 3 is distributed to both sides of the long axis of the bottle body, so as to reduce the thickness of the label sticking surface, when the bottle is blown in an uneven shape / with a large length-to-short axis ratio, the uneven wall thickness distribution is not prone to occur, the label sticking surface shrinkage is improved, and the effect of optimizing the functionality of product label sticking is achieved.

[0026] In the embodiment, the bottle embryo bottom 4 is provided with a protrusion 6 at the lower end, and the protrusion 6 is arranged at the center position of the bottle embryo bottom 4. The protrusion 6 of the utility model can make the bottom after blowing the bottle more solid.

[0027] In the embodiment, the thickness of the bottle embryo middle section 3 is greater than the thickness of the bottle embryo mouth 1, and the thickness of the bottle embryo middle section 3 is greater than the thickness of the bottle embryo transition section 2. Specifically, the thickness of the bottle embryo middle section 3 can be selected according to requirements.

[0028] In the embodiment, the connection between the bottle embryo mouth 1 and the bottle embryo transition section 2 is provided with an extension piece 7, and the extension piece 7 is arranged in a ring shape. After the bottle is blown, the extension piece 7 can block the bottle cap to prevent the bottle cap from being screwed too much.

[0029] In the embodiment, the bottle embryo mouth 1, the bottle embryo transition section 2, the bottle embryo middle section 3 and the bottle embryo bottom 4 all adopt one of PET, PE and PP.

[0030] As Figure 2 and 3 , the angle of the two section lines is perpendicular, and the thickness of the two sides of the cut bottle embryo middle section 3 is greater than the thickness of the front side and the back side of the bottle embryo middle section 3.

[0031] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A profiled wall thickness compensation preform for orienting a bottle, characterized by: The bottle embryo includes a bottle embryo mouth, a bottle embryo transition section, a bottle embryo middle section and a bottle embryo bottom, the bottle embryo mouth, the bottle embryo transition section, the bottle embryo middle section and the bottle embryo bottom are integrally injection molded, the bottle embryo mouth is provided with external threads, the bottle embryo transition section is provided in an inner expanding manner from top to bottom, the bottle embryo middle section is provided in a straight cylinder manner, the bottle embryo bottom is provided in a circular arc manner, the thickness of the bottle embryo middle section on both sides is greater than the thickness of the front side and the back side of the bottle embryo middle section.

2. The bottle preform of claim 1, wherein: The bottle embryo bottom is provided with a protruding block at the lower end, and the protruding block is arranged at the center of the bottle embryo bottom.

3. The bottle preform of claim 1, wherein: The thickness of the bottle embryo middle section is greater than the thickness of the bottle embryo mouth, and the thickness of the bottle embryo middle section is greater than the thickness of the bottle embryo transition section.

4. The bottle preform of claim 1, wherein: An extension member is arranged at the joint of the bottle embryo mouth and the bottle embryo transition section, and the extension member is arranged in a ring shape.

5. The bottle preform of claim 1, wherein: The bottle embryo mouth, the bottle embryo transition section, the bottle embryo middle section and the bottle embryo bottom are made of one of PET, PE and PP.

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